/* ************************************************************************** */ /* * For conditions of distribution and use, * */ /* * see copyright notice in libmng.h * */ /* ************************************************************************** */ /* * * */ /* * project : libmng * */ /* * file : libmng_pixels.c copyright (c) 2000-2005 G.Juyn * */ /* * version : 1.0.10 * */ /* * * */ /* * purpose : Pixel-row management routines (implementation) * */ /* * * */ /* * author : G.Juyn * */ /* * * */ /* * comment : implementation of the pixel-row management routines * */ /* * * */ /* * the dual alpha-composing for RGBA/BGRA/etc output-canvas' * */ /* * is based on the Note on Compositing chapter of the * */ /* * DOH-3 draft, noted to me by Adam M. Costello * */ /* * * */ /* * changes : 0.5.1 - 05/08/2000 - G.Juyn * */ /* * - changed strict-ANSI stuff * */ /* * 0.5.1 - 05/11/2000 - G.Juyn * */ /* * - added callback error-reporting support * */ /* * 0.5.1 - 05/12/2000 - G.Juyn * */ /* * - changed trace to macro for callback error-reporting * */ /* * * */ /* * 0.5.2 - 05/22/2000 - G.Juyn * */ /* * - added JNG support * */ /* * 0.5.2 - 05/30/2000 - G.Juyn * */ /* * - fixed minor bugs 16-bit pixel-handling * */ /* * - added delta-image row-processing routines * */ /* * 0.5.2 - 06/02/2000 - G.Juyn * */ /* * - fixed endian support (hopefully) * */ /* * 0.5.2 - 06/03/2000 - G.Juyn * */ /* * - fixed makeup for Linux gcc compile * */ /* * 0.5.2 - 06/05/2000 - G.Juyn * */ /* * - implemented app bkgd restore routines * */ /* * - implemented RGBA8, ARGB8, BGRA8 & ABGR8 display routines * */ /* * - added support for RGB8_A8 canvasstyle * */ /* * 0.5.2 - 06/09/2000 - G.Juyn * */ /* * - fixed alpha-handling for alpha canvasstyles * */ /* * * */ /* * 0.5.3 - 06/16/2000 - G.Juyn * */ /* * - changed progressive-display processing * */ /* * 0.5.3 - 06/17/2000 - G.Juyn * */ /* * - changed to support delta-images * */ /* * - optimized some store_xxx routines * */ /* * 0.5.3 - 06/20/2000 - G.Juyn * */ /* * - fixed nasty bug with embedded PNG after delta-image * */ /* * 0.5.3 - 06/24/2000 - G.Juyn * */ /* * - fixed problem with 16-bit GA format * */ /* * 0.5.3 - 06/25/2000 - G.Juyn * */ /* * - fixed problem with cheap transparency for 4-bit gray * */ /* * - fixed display_xxxx routines for interlaced images * */ /* * 0.5.3 - 06/28/2000 - G.Juyn * */ /* * - fixed compiler-warning for non-initialized iB variable * */ /* * * */ /* * 0.9.1 - 07/05/2000 - G.Juyn * */ /* * - fixed mandatory BACK color to be opaque * */ /* * * */ /* * 0.9.2 - 07/31/2000 - G.Juyn * */ /* * - B110547 - fixed bug in interlace code * */ /* * 0.9.2 - 08/05/2000 - G.Juyn * */ /* * - changed file-prefixes * */ /* * * */ /* * 0.9.3 - 08/20/2000 - G.Juyn * */ /* * - fixed app-supplied background restore * */ /* * 0.9.3 - 08/26/2000 - G.Juyn * */ /* * - added MAGN chunk * */ /* * 0.9.3 - 09/07/2000 - G.Juyn * */ /* * - added support for new filter_types * */ /* * 0.9.3 - 09/30/2000 - G.Juyn * */ /* * - fixed MAGN rounding errors (thanks Matthias!) * */ /* * 0.9.3 - 10/10/2000 - G.Juyn * */ /* * - fixed alpha-blending for RGBA canvasstyle * */ /* * 0.9.3 - 10/11/2000 - G.Juyn * */ /* * - fixed alpha-blending for other alpha-canvasstyles * */ /* * 0.9.3 - 10/16/2000 - G.Juyn * */ /* * - added optional support for bKGD for PNG images * */ /* * - added support for JDAA * */ /* * 0.9.3 - 10/17/2000 - G.Juyn * */ /* * - fixed support for bKGD * */ /* * 0.9.3 - 10/19/2000 - G.Juyn * */ /* * - implemented delayed delta-processing * */ /* * 0.9.3 - 10/28/2000 - G.Juyn * */ /* * - fixed tRNS processing for gray-image < 8-bits * */ /* * * */ /* * 0.9.4 - 12/16/2000 - G.Juyn * */ /* * - fixed mixup of data- & function-pointers (thanks Dimitri)* */ /* * 0.9.4 - 1/18/2001 - G.Juyn * */ /* * - removed "old" MAGN methods 3 & 4 * */ /* * - added "new" MAGN methods 3, 4 & 5 * */ /* * - removed test filter-methods 1 & 65 * */ /* * * */ /* * 1.0.1 - 04/21/2001 - G.Juyn (code by G.Kelly) * */ /* * - added BGRA8 canvas with premultiplied alpha * */ /* * 1.0.1 - 04/25/2001 - G.Juyn * */ /* * - moved mng_clear_cms to libmng_cms * */ /* * * */ /* * 1.0.2 - 06/25/2001 - G.Juyn * */ /* * - added option to turn off progressive refresh * */ /* * * */ /* * 1.0.4 - 11/04/2001 - G.Juyn * */ /* * - fixed possible compile-problem in cleanup_rowproc * */ /* * 1.0.4 - 06/22/2002 - G.Juyn * */ /* * - B558212 - off by one error * */ /* * - MNG subimage alpha composite wrong for rgba8 images * */ /* * * */ /* * 1.0.5 - 08/07/2002 - G.Juyn * */ /* * - added test-option for PNG filter method 193 (=no filter) * */ /* * 1.0.5 - 08/15/2002 - G.Juyn * */ /* * - completed PROM support * */ /* * - completed delta-image support * */ /* * 1.0.5 - 08/16/2002 - G.Juyn * */ /* * - completed MAGN support (16-bit functions) * */ /* * 1.0.5 - 08/19/2002 - G.Juyn * */ /* * - B597134 - libmng pollutes the linker namespace * */ /* * 1.0.5 - 09/19/2002 - G.Juyn * */ /* * - optimized restore-background for bKGD cases * */ /* * 1.0.5 - 09/20/2002 - G.Juyn * */ /* * - finished support for BACK image & tiling * */ /* * 1.0.5 - 09/22/2002 - G.Juyn * */ /* * - added bgrx8 canvas (filler byte) * */ /* * 1.0.5 - 09/23/2002 - G.Juyn * */ /* * - added compose over/under routines for PAST processing * */ /* * - added flip & tile routines for PAST processing * */ /* * * */ /* * 1.0.6 - 03/09/2003 - G.Juyn * */ /* * - hiding 12-bit JPEG stuff * */ /* * 1.0.6 - 05/11/2003 - Glenn RP * */ /* * - added size-optimization COMPOSE routine usage * */ /* * 1.0.6 - 05/11/2003 - G. Juyn * */ /* * - added conditionals around canvas update routines * */ /* * 1.0.6 - 05/25/2003 - Glenn RP * */ /* * - added size-optimization DIV255B8 routine usage * */ /* * 1.0.6 - 06/09/2003 - G. R-P * */ /* * - added conditionals around 8-bit magn routines * */ /* * 1.0.6 - 07/07/2003 - G. R-P * */ /* * - removed conditionals around 8-bit magn routines * */ /* * - added MNG_NO_16BIT_SUPPORT and MNG_NO_DELTA_PNG * */ /* * conditionals * */ /* * - reversed many loops to use decrementing counter * */ /* * - combined init functions * */ /* * - converted some switches to array references * */ /* * 1.0.6 - 07/29/2003 - G.Juyn * */ /* * - fixed duplicate for-loop * */ /* * 1.0.6 - 07/29/2003 - G.R-P * */ /* * - added SKIPCHUNK conditionals around PAST chunk support * */ /* * - fixed "FOOTPRINT_COMPOSEIV" typo (now "FOOTPRINT_DIV") * */ /* * 1.0.6 - 08/17/2003 - G.R-P * */ /* * - added more conditionals around "promote" functions * */ /* * * */ /* * 1.0.7 - 11/27/2003 - R.A * */ /* * - added CANVAS_RGB565 and CANVAS_BGR565 * */ /* * 1.0.7 - 12/06/2003 - R.A * */ /* * - added CANVAS_RGBA565 and CANVAS_BGRA565 * */ /* * 1.0.7 - 01/25/2004 - J.S * */ /* * - added premultiplied alpha canvas' for RGBA, ARGB, ABGR * */ /* * 1.0.7 - 03/08/2004 - G.R-P * */ /* * - added more conditionals around 16-bit-supporting code * */ /* * 1.0.7 - 03/09/2004 - G.Juyn * */ /* * - fixed bug in promote_g8_g8 with 16bit support off * */ /* * 1.0.7 - 03/09/2004 - G.R-P * */ /* * - more optimizations with 16bit support off * */ /* * 1.0.7 - 03/10/2004 - G.Juyn * */ /* * - fixed some warnings for 16bit optimizations * */ /* * 1.0.7 - 03/21/2004 - G.Juyn * */ /* * - fixed some 64-bit platform compiler warnings * */ /* * * */ /* * 1.0.8 - 06/20/2004 - G.Juyn * */ /* * - some speed optimizations (thanks to John Stiles) * */ /* * 1.0.8 - 08/01/2004 - G.Juyn * */ /* * - added support for 3+byte pixelsize for JPEG's * */ /* * * */ /* * 1.0.9 - 10/10/2004 - G.R-P. * */ /* * - added MNG_NO_1_2_4BIT_SUPPORT * */ /* * 1.0.9 - 10/14/2004 - G.Juyn * */ /* * - added bgr565_a8 canvas-style (thanks to J. Elvander) * */ /* * 1.0.9 - 12/05/2004 - G.Juyn * */ /* * - added LITTLEENDIAN/BIGENDIAN fixtures (thanks J.Stiles) * */ /* * - fixed MNG_NO_1_2_4BIT_SUPPORT for TBBN1G04.PNG * */ /* * 1.0.9 - 12/31/2004 - G.R-P. * */ /* * - fixed warnings about C++ style (//) comments * */ /* * * */ /* * 1.0.10 - 07/06/2005 - G.R-P. * */ /* * - added MORE MNG_NO_1_2_4BIT_SUPPORT * */ /* * 1.0.10 - 10/06/2005 - G.R-P. * */ /* * - alloc more memory for MNG_NO_1_2_4BIT_SUPPORT * */ /* * 1.0.10 - 12/07/2005 - G.R-P. * */ /* * - optimized footprint of 16bit support * */ /* * 1.0.10 - 03/07/2006 - (thanks to W. Manthey) * */ /* * - added CANVAS_RGB555 and CANVAS_BGR555 * */ /* * * */ /* ************************************************************************** */ #include "libmng.h" #include "libmng_data.h" #include "libmng_error.h" #include "libmng_trace.h" #ifdef __BORLANDC__ #pragma hdrstop #endif #include "libmng_objects.h" #include "libmng_object_prc.h" #include "libmng_memory.h" #include "libmng_cms.h" #include "libmng_filter.h" #include "libmng_pixels.h" #if defined(__BORLANDC__) && defined(MNG_STRICT_ANSI) #pragma option -A /* force ANSI-C */ #endif /* ************************************************************************** */ #ifdef MNG_INCLUDE_DISPLAY_PROCS /* TODO: magnification & canvas-positioning/-clipping */ /* TODO: major optimization of pixel-loops by using assembler (?) */ /* ************************************************************************** */ /* * * */ /* * Interlace tables * */ /* * * */ /* ************************************************************************** */ MNG_LOCAL mng_uint32 const interlace_row [7] = { 0, 0, 4, 0, 2, 0, 1 }; MNG_LOCAL mng_uint32 const interlace_rowskip [7] = { 8, 8, 8, 4, 4, 2, 2 }; MNG_LOCAL mng_uint32 const interlace_col [7] = { 0, 4, 0, 2, 0, 1, 0 }; MNG_LOCAL mng_uint32 const interlace_colskip [7] = { 8, 8, 4, 4, 2, 2, 1 }; MNG_LOCAL mng_uint32 const interlace_roundoff [7] = { 7, 7, 3, 3, 1, 1, 0 }; MNG_LOCAL mng_uint32 const interlace_divider [7] = { 3, 3, 2, 2, 1, 1, 0 }; /* ************************************************************************** */ /* * * */ /* * Alpha composing macros * */ /* * the code below is slightly modified from the libpng package * */ /* * the original was last optimized by Greg Roelofs & Mark Adler * */ /* * * */ /* ************************************************************************** */ #define MNG_COMPOSE8(RET,FG,ALPHA,BG) { \ mng_uint16 iH = (mng_uint16)((mng_uint16)(FG) * (mng_uint16)(ALPHA) \ + (mng_uint16)(BG)*(mng_uint16)(255 - \ (mng_uint16)(ALPHA)) + (mng_uint16)128); \ (RET) = (mng_uint8)((iH + (iH >> 8)) >> 8); } #define MNG_COMPOSE16(RET,FG,ALPHA,BG) { \ mng_uint32 iH = (mng_uint32)((mng_uint32)(FG) * (mng_uint32)(ALPHA) \ + (mng_uint32)(BG)*(mng_uint32)(65535L - \ (mng_uint32)(ALPHA)) + (mng_uint32)32768L); \ (RET) = (mng_uint16)((iH + (iH >> 16)) >> 16); } /* ************************************************************************** */ /* * * */ /* * Alpha blending macros * */ /* * this code is based on Adam Costello's "Note on Compositing" from the * */ /* * mng-list which gives the following formula: * */ /* * * */ /* * top pixel = (Rt, Gt, Bt, At) * */ /* * bottom pixel = (Rb, Gb, Bb, Ab) * */ /* * composite pixel = (Rc, Gc, Bc, Ac) * */ /* * * */ /* * all values in the range 0..1 * */ /* * * */ /* * Ac = 1 - (1 - At)(1 - Ab) * */ /* * s = At / Ac * */ /* * t = (1 - At) Ab / Ac * */ /* * Rc = s Rt + t Rb * */ /* * Gc = s Gt + t Gb * */ /* * Bc = s Bt + t Bb * */ /* * * */ /* * (I just hope I coded it correctly in integer arithmetic...) * */ /* * * */ /* ************************************************************************** */ #define MNG_BLEND8(RT, GT, BT, AT, RB, GB, BB, AB, RC, GC, BC, AC) { \ mng_uint32 S, T; \ (AC) = (mng_uint8)((mng_uint32)255 - \ ((((mng_uint32)255 - (mng_uint32)(AT)) * \ ((mng_uint32)255 - (mng_uint32)(AB)) ) >> 8)); \ S = (mng_uint32)(((mng_uint32)(AT) << 8) / \ (mng_uint32)(AC)); \ T = (mng_uint32)(((mng_uint32)255 - (mng_uint32)(AT)) * \ (mng_uint32)(AB) / (mng_uint32)(AC)); \ (RC) = (mng_uint8)((S * (mng_uint32)(RT) + \ T * (mng_uint32)(RB) + (mng_uint32)127) >> 8); \ (GC) = (mng_uint8)((S * (mng_uint32)(GT) + \ T * (mng_uint32)(GB) + (mng_uint32)127) >> 8); \ (BC) = (mng_uint8)((S * (mng_uint32)(BT) + \ T * (mng_uint32)(BB) + (mng_uint32)127) >> 8); } #define MNG_BLEND16(RT, GT, BT, AT, RB, GB, BB, AB, RC, GC, BC, AC) { \ mng_uint32 S, T; \ (AC) = (mng_uint16)((mng_uint32)65535 - \ ((((mng_uint32)65535 - (mng_uint32)(AT)) * \ ((mng_uint32)65535 - (mng_uint32)(AB)) ) >> 16)); \ S = (mng_uint32)(((mng_uint32)(AT) << 16) / \ (mng_uint32)(AC)); \ T = (mng_uint32)(((mng_uint32)65535 - (mng_uint32)(AT)) * \ (mng_uint32)(AB) / (mng_uint32)(AC)); \ (RC) = (mng_uint16)((S * (mng_uint32)(RT) + \ T * (mng_uint32)(RB) + (mng_uint32)32767) >> 16); \ (GC) = (mng_uint16)((S * (mng_uint32)(GT) + \ T * (mng_uint32)(GB) + (mng_uint32)32767) >> 16); \ (BC) = (mng_uint16)((S * (mng_uint32)(BT) + \ T * (mng_uint32)(BB) + (mng_uint32)32767) >> 16); } /* ************************************************************************** */ /* note a good optimizing compiler will optimize this */ #define DIV255B8(x) (mng_uint8)(((x) + 127) / 255) #define DIV255B16(x) (mng_uint16)(((x) + 32767) / 65535) /* ************************************************************************** */ /* * * */ /* * Progressive display check - checks to see if progressive display is * */ /* * in order & indicates so * */ /* * * */ /* * The routine is called after a call to one of the display_xxx routines * */ /* * if appropriate * */ /* * * */ /* * The refresh is warrented in the read_chunk routine (mng_read.c) * */ /* * and only during read&display processing, since there's not much point * */ /* * doing it from memory! * */ /* * * */ /* ************************************************************************** */ mng_retcode mng_display_progressive_check (mng_datap pData) { if ((pData->bDoProgressive) && /* need progressive display? */ ((pData->eImagetype != mng_it_mng) || (pData->iDataheight > 300)) && (pData->iDestb - pData->iDestt > 50) && (!pData->pCurraniobj)) { mng_int32 iC = pData->iRow + pData->iDestt - pData->iSourcet; if (iC % 20 == 0) /* every 20th line */ pData->bNeedrefresh = MNG_TRUE; } return MNG_NOERROR; } /* ************************************************************************** */ /* * * */ /* * Display routines - convert rowdata (which is already color-corrected) * */ /* * to the output canvas, respecting the opacity information * */ /* * * */ /* ************************************************************************** */ MNG_LOCAL void check_update_region (mng_datap pData) { /* determine actual canvas row */ mng_int32 iRow = pData->iRow + pData->iDestt - pData->iSourcet; /* check for change in update-region */ if ((pData->iDestl < (mng_int32)pData->iUpdateleft) || (pData->iUpdateright == 0)) pData->iUpdateleft = pData->iDestl; if (pData->iDestr > (mng_int32)pData->iUpdateright) pData->iUpdateright = pData->iDestr; if ((iRow < (mng_int32)pData->iUpdatetop) || (pData->iUpdatebottom == 0)) pData->iUpdatetop = iRow; if (iRow+1 > (mng_int32)pData->iUpdatebottom) pData->iUpdatebottom = iRow+1; return; } /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_RGB8 #ifndef MNG_NO_16BIT_SUPPORT #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE mng_retcode mng_display_rgb8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint16 iA16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint8 iA8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); pDataline = pData->pRGBArow; /* address source row */ if (pData->bIsRGBA16) /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); else pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *(pDataline+4); pScanline += (pData->iColinc * 3); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *(pDataline+2); pScanline += (pData->iColinc * 3); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA16 = mng_get_uint16 (pDataline+6); if (iA16) /* any opacity at all ? */ { if (iA16 == 0xFFFF) /* fully opaque ? */ { /* scale down by dropping the LSB */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *(pDataline+4); } else { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGr16 = (mng_uint16)(*pScanline ); iBGg16 = (mng_uint16)(*(pScanline+1)); iBGb16 = (mng_uint16)(*(pScanline+2)); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); /* and return the composed values */ *pScanline = (mng_uint8)(iFGr16 >> 8); *(pScanline+1) = (mng_uint8)(iFGg16 >> 8); *(pScanline+2) = (mng_uint8)(iFGb16 >> 8); } } pScanline += (pData->iColinc * 3); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *(pDataline+2); } else { /* do alpha composing */ MNG_COMPOSE8 (*pScanline, *pDataline, iA8, *pScanline ); MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iA8, *(pScanline+1)); MNG_COMPOSE8 (*(pScanline+2), *(pDataline+2), iA8, *(pScanline+2)); } } pScanline += (pData->iColinc * 3); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8, MNG_LC_END); #endif return MNG_NOERROR; } #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ mng_retcode mng_display_rgb8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint16 iA16; mng_uint16 iFGg16; mng_uint16 iBGg16; mng_uint8 iA8; mng_uint8 iBps; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8, MNG_LC_START); #endif iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); pDataline = pData->pRGBArow; /* address source row */ /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); if (pData->bIsOpaque) /* forget about transparency ? */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+iBps); *(pScanline+2) = *(pDataline+2*iBps); pScanline += (pData->iColinc * 3); pDataline += 4*iBps; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA16 = mng_get_uint16 (pDataline+6); if (iA16) /* any opacity at all ? */ { if (iA16 == 0xFFFF) /* fully opaque ? */ { /* scale down by dropping the LSB */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *(pDataline+4); } else { /* get the proper values */ int i; for (i=2; i >= 0; i--) { iFGg16 = mng_get_uint16 (pDataline+i+i); /* scale background up */ iBGg16 = (mng_uint16)(*(pScanline+i)); iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; /* now compose */ MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); /* and return the composed values */ *(pScanline+i) = (mng_uint8)(iFGg16 >> 8); } } } pScanline += (pData->iColinc * 3); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *(pDataline+2); } else { /* do alpha composing */ int i; for (i=2; i >= 0; i--) { MNG_COMPOSE8 (*(pScanline+i), *(pDataline+i), iA8, *(pScanline+i)); } } } pScanline += (pData->iColinc * 3); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ #else /* MNG_NO_16BIT_SUPPORT */ mng_retcode mng_display_rgb8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iA8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); pDataline = pData->pRGBArow; /* address source row */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *(pDataline+2); pScanline += (pData->iColinc * 3); pDataline += 4; } } } else { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *(pDataline+2); } else { /* do alpha composing */ #ifdef MNG_OPTIMIZE_FOOTPRINT_COMPOSE int i; for (i=2; i >= 0; i--) { MNG_COMPOSE8 (*(pScanline+i), *(pDataline+i), iA8, *(pScanline+i)); } #else MNG_COMPOSE8 (*pScanline, *pDataline, iA8, *pScanline ); MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iA8, *(pScanline+1)); MNG_COMPOSE8 (*(pScanline+2), *(pDataline+2), iA8, *(pScanline+2)); #endif } } pScanline += (pData->iColinc * 3); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_16BIT_SUPPORT */ #endif /* MNG_SKIPCANVAS_RGB8 */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_RGBA8 #ifndef MNG_NO_16BIT_SUPPORT #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE mng_retcode mng_display_rgba8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint16 iFGa16, iBGa16, iCa16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint16 iCr16, iCg16, iCb16; mng_uint8 iCr8, iCg8, iCb8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ if (pData->bIsRGBA16) /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); else pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *(pDataline+4); *(pScanline+3) = *(pDataline+6); pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *(pDataline+2); *(pScanline+3) = *(pDataline+3); pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ iFGa16 = mng_get_uint16 (pDataline+6); iBGa16 = (mng_uint16)(*(pScanline+3)); iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; if (iFGa16) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) { /* plain copy it */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *(pDataline+4); *(pScanline+3) = *(pDataline+6); } else { if (iBGa16 == 0xFFFF) /* background fully opaque ? */ { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGr16 = (mng_uint16)(*pScanline ); iBGg16 = (mng_uint16)(*(pScanline+1)); iBGb16 = (mng_uint16)(*(pScanline+2)); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16); /* and return the composed values */ *pScanline = (mng_uint8)(iFGr16 >> 8); *(pScanline+1) = (mng_uint8)(iFGg16 >> 8); *(pScanline+2) = (mng_uint8)(iFGb16 >> 8); /* alpha remains fully opaque !!! */ } else { /* scale background up */ iBGr16 = (mng_uint16)(*pScanline ); iBGg16 = (mng_uint16)(*(pScanline+1)); iBGb16 = (mng_uint16)(*(pScanline+2)); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* let's blend */ MNG_BLEND16 (mng_get_uint16 (pDataline ), mng_get_uint16 (pDataline+2), mng_get_uint16 (pDataline+4), iFGa16, iBGr16, iBGg16, iBGb16, iBGa16, iCr16, iCg16, iCb16, iCa16); /* and return the composed values */ *pScanline = (mng_uint8)(iCr16 >> 8); *(pScanline+1) = (mng_uint8)(iCg16 >> 8); *(pScanline+2) = (mng_uint8)(iCb16 >> 8); *(pScanline+3) = (mng_uint8)(iCa16 >> 8); } } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *(pScanline+3); if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *(pDataline+2); *(pScanline+3) = *(pDataline+3); } else { if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do alpha composing */ MNG_COMPOSE8 (*pScanline, *pDataline, iFGa8, *pScanline ); MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iFGa8, *(pScanline+1)); MNG_COMPOSE8 (*(pScanline+2), *(pDataline+2), iFGa8, *(pScanline+2)); /* alpha remains fully opaque !!! */ } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, *pScanline, *(pScanline+1), *(pScanline+2), iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = iCr8; *(pScanline+1) = iCg8; *(pScanline+2) = iCb8; *(pScanline+3) = iCa8; } } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8, MNG_LC_END); #endif return MNG_NOERROR; } #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ mng_retcode mng_display_rgba8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint16 iFGa16, iBGa16, iCa16; mng_uint16 iFGg16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint16 iCr16, iCg16, iCb16; mng_uint8 iCr8, iCg8, iCb8; mng_uint8 iBps; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8, MNG_LC_START); #endif iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); if (pData->bIsOpaque) /* forget about transparency ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+iBps); *(pScanline+2) = *(pDataline+2*iBps); *(pScanline+3) = *(pDataline+3*iBps); pScanline += (pData->iColinc << 2); pDataline += 4*iBps; } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ iFGa16 = mng_get_uint16 (pDataline+6); iBGa16 = (mng_uint16)(*(pScanline+3)); iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; if (iFGa16) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) { /* plain copy it */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *(pDataline+4); *(pScanline+3) = *(pDataline+6); } else { if (iBGa16 == 0xFFFF) /* background fully opaque ? */ { /* get the proper values */ int i; for (i=2; i >= 0; i--) { iFGg16 = mng_get_uint16 (pDataline+i+i); /* scale background up */ iBGg16 = (mng_uint16)(*(pScanline+i)); iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; /* now compose */ MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); /* and return the composed values */ *(pScanline+i) = (mng_uint8)(iFGg16 >> 8); /* alpha remains fully opaque !!! */ } } else { /* scale background up */ iBGr16 = (mng_uint16)(*pScanline ); iBGg16 = (mng_uint16)(*(pScanline+1)); iBGb16 = (mng_uint16)(*(pScanline+2)); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* let's blend */ MNG_BLEND16 (mng_get_uint16 (pDataline ), mng_get_uint16 (pDataline+2), mng_get_uint16 (pDataline+4), iFGa16, iBGr16, iBGg16, iBGb16, iBGa16, iCr16, iCg16, iCb16, iCa16); /* and return the composed values */ *pScanline = (mng_uint8)(iCr16 >> 8); *(pScanline+1) = (mng_uint8)(iCg16 >> 8); *(pScanline+2) = (mng_uint8)(iCb16 >> 8); *(pScanline+3) = (mng_uint8)(iCa16 >> 8); } } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *(pScanline+3); if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *(pDataline+2); *(pScanline+3) = *(pDataline+3); } else { if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do alpha composing */ int i; for (i=2; i >= 0; i--) { MNG_COMPOSE8 (*(pScanline+i), *(pDataline+i), iFGa8, *(pScanline+i)); } /* alpha remains fully opaque !!! */ } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, *pScanline, *(pScanline+1), *(pScanline+2), iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = iCr8; *(pScanline+1) = iCg8; *(pScanline+2) = iCb8; *(pScanline+3) = iCa8; } } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ #else /* MNG_NO_16BIT_SUPPORT */ mng_retcode mng_display_rgba8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint8 iCr8, iCg8, iCb8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *(pDataline+2); *(pScanline+3) = *(pDataline+3); pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *(pScanline+3); if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *(pDataline+2); *(pScanline+3) = *(pDataline+3); } else { if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do alpha composing */ #ifdef MNG_OPTIMIZE_FOOTPRINT_COMPOSE int i; for (i=2; i >= 0; i--) { MNG_COMPOSE8 (*(pScanline+i), *(pDataline+i), iFGa8, *(pScanline+i)); } #else MNG_COMPOSE8 (*pScanline, *pDataline, iFGa8, *pScanline ); MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iFGa8, *(pScanline+1)); MNG_COMPOSE8 (*(pScanline+2), *(pDataline+2), iFGa8, *(pScanline+2)); #endif /* alpha remains fully opaque !!! */ } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, *pScanline, *(pScanline+1), *(pScanline+2), iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = iCr8; *(pScanline+1) = iCg8; *(pScanline+2) = iCb8; *(pScanline+3) = iCa8; } } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_16BIT_SUPPORT */ #endif /* MNG_SKIPCANVAS_RGBA8 */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_RGBA8_PM #ifndef MNG_NO_16BIT_SUPPORT #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE mng_retcode mng_display_rgba8_pm (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint32 s, t; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8_PM, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ if (pData->bIsRGBA16) /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); else pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ if ((s = pDataline[6]) == 0) *(mng_uint32*) pScanline = 0; /* set all components = 0 */ else { if (s == 255) { pScanline[0] = pDataline[0]; pScanline[1] = pDataline[2]; pScanline[2] = pDataline[4]; pScanline[3] = 255; } else { #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV int i; for (i=2; i >= 0; i--) { pScanline[2-i] = DIV255B8(s * pDataline[4-i-i]); } #else pScanline[0] = DIV255B8(s * pDataline[0]); pScanline[1] = DIV255B8(s * pDataline[2]); pScanline[2] = DIV255B8(s * pDataline[4]); #endif pScanline[3] = (mng_uint8)s; } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values and premultiply */ if ((s = pDataline[3]) == 0) *(mng_uint32*) pScanline = 0; /* set all components = 0 */ else { if (s == 255) { #ifdef MNG_BIGENDIAN_SUPPORTED *(mng_uint32*)pScanline = (*(mng_uint32*)pDataline) | 0x000000FF; #else pScanline[0] = pDataline[0]; pScanline[1] = pDataline[1]; pScanline[2] = pDataline[2]; pScanline[3] = 255; #endif } else { #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV int i; for (i=2; i >= 0; i--) { pScanline[2-i] = DIV255B8(s * pDataline[2-i]); } #else pScanline[0] = DIV255B8(s * pDataline[0]); pScanline[1] = DIV255B8(s * pDataline[1]); pScanline[2] = DIV255B8(s * pDataline[2]); #endif pScanline[3] = (mng_uint8)s; } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ if ((s = pDataline[6]) != 0) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if (s == 255) { /* plain copy it */ pScanline[0] = pDataline[0]; pScanline[1] = pDataline[2]; pScanline[2] = pDataline[4]; pScanline[3] = 255; } else { /* now blend (premultiplied) */ t = 255 - s; #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[2-i] = DIV255B8(s * pDataline[4-i-i] + t * pScanline[2-i]); } } #else pScanline[0] = DIV255B8(s * pDataline[0] + t * pScanline[0]); pScanline[1] = DIV255B8(s * pDataline[2] + t * pScanline[1]); pScanline[2] = DIV255B8(s * pDataline[4] + t * pScanline[2]); #endif pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { if ((s = pDataline[3]) != 0) /* any opacity at all ? */ { /* fully opaque ? */ if (s == 255) { /* then simply copy the values */ #ifdef MNG_BIGENDIAN_SUPPORTED *(mng_uint32*)pScanline = (*(mng_uint32*)pDataline) | 0x000000FF; #else pScanline[0] = pDataline[0]; pScanline[1] = pDataline[1]; pScanline[2] = pDataline[2]; pScanline[3] = 255; #endif } else { /* now blend (premultiplied) */ t = 255 - s; #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[2-i] = DIV255B8(s * pDataline[2-i] + t * pScanline[2-i]); } } #else pScanline[0] = DIV255B8(s * pDataline[0] + t * pScanline[0]); pScanline[1] = DIV255B8(s * pDataline[1] + t * pScanline[1]); pScanline[2] = DIV255B8(s * pDataline[2] + t * pScanline[2]); #endif pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8_PM, MNG_LC_END); #endif return MNG_NOERROR; } #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ mng_retcode mng_display_rgba8_pm (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint32 s, t; mng_uint8 iBps; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8_PM, MNG_LC_START); #endif iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ if ((s = pDataline[6]) == 0) *(mng_uint32*) pScanline = 0; /* set all components = 0 */ else { if (s == 255) { pScanline[0] = pDataline[0]; pScanline[1] = pDataline[2]; pScanline[2] = pDataline[4]; pScanline[3] = 255; } else { #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV int i; for (i=2; i >= 0; i--) { pScanline[2-i] = DIV255B8(s * pDataline[4-i-i]); } #else pScanline[0] = DIV255B8(s * pDataline[0]); pScanline[1] = DIV255B8(s * pDataline[2]); pScanline[2] = DIV255B8(s * pDataline[4]); #endif pScanline[3] = (mng_uint8)s; } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values and premultiply */ if ((s = pDataline[3]) == 0) *(mng_uint32*) pScanline = 0; /* set all components = 0 */ else { if (s == 255) { #ifdef MNG_BIGENDIAN_SUPPORTED *(mng_uint32*)pScanline = (*(mng_uint32*)pDataline) | 0x000000FF; #else pScanline[0] = pDataline[0]; pScanline[1] = pDataline[1]; pScanline[2] = pDataline[2]; pScanline[3] = 255; #endif } else { #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV int i; for (i=2; i >= 0; i--) { pScanline[2-i] = DIV255B8(s * pDataline[2-i]); } #else pScanline[0] = DIV255B8(s * pDataline[0]); pScanline[1] = DIV255B8(s * pDataline[1]); pScanline[2] = DIV255B8(s * pDataline[2]); #endif pScanline[3] = (mng_uint8)s; } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ if ((s = pDataline[6]) != 0) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if (s == 255) { /* plain copy it */ pScanline[0] = pDataline[0]; pScanline[1] = pDataline[2]; pScanline[2] = pDataline[4]; pScanline[3] = 255; } else { /* now blend (premultiplied) */ t = 255 - s; #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[2-i] = DIV255B8(s * pDataline[4-i-i] + t * pScanline[2-i]); } } #else pScanline[0] = DIV255B8(s * pDataline[0] + t * pScanline[0]); pScanline[1] = DIV255B8(s * pDataline[2] + t * pScanline[1]); pScanline[2] = DIV255B8(s * pDataline[4] + t * pScanline[2]); #endif pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { if ((s = pDataline[3]) != 0) /* any opacity at all ? */ { /* fully opaque ? */ if (s == 255) { /* then simply copy the values */ #ifdef MNG_BIGENDIAN_SUPPORTED *(mng_uint32*)pScanline = (*(mng_uint32*)pDataline) | 0x000000FF; #else pScanline[0] = pDataline[0]; pScanline[1] = pDataline[1]; pScanline[2] = pDataline[2]; pScanline[3] = 255; #endif } else { /* now blend (premultiplied) */ t = 255 - s; #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[2-i] = DIV255B8(s * pDataline[2-i] + t * pScanline[2-i]); } } #else pScanline[0] = DIV255B8(s * pDataline[0] + t * pScanline[0]); pScanline[1] = DIV255B8(s * pDataline[1] + t * pScanline[1]); pScanline[2] = DIV255B8(s * pDataline[2] + t * pScanline[2]); #endif pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8_PM, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ #else /* MNG_NO_16BIT_SUPPORT */ mng_retcode mng_display_rgba8_pm (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint32 s, t; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8_PM, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values and premultiply */ if ((s = pDataline[3]) == 0) *(mng_uint32*) pScanline = 0; /* set all components = 0 */ else { if (s == 255) { #ifdef MNG_BIGENDIAN_SUPPORTED *(mng_uint32*)pScanline = (*(mng_uint32*)pDataline) | 0x000000FF; #else pScanline[0] = pDataline[0]; pScanline[1] = pDataline[1]; pScanline[2] = pDataline[2]; pScanline[3] = 255; #endif } else { #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV int i; for (i=2; i >= 0; i--) { pScanline[2-i] = DIV255B8(s * pDataline[2-i]); } #else pScanline[0] = DIV255B8(s * pDataline[0]); pScanline[1] = DIV255B8(s * pDataline[1]); pScanline[2] = DIV255B8(s * pDataline[2]); #endif pScanline[3] = (mng_uint8)s; } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { if ((s = pDataline[3]) != 0) /* any opacity at all ? */ { /* fully opaque ? */ if (s == 255) { /* then simply copy the values */ #ifdef MNG_BIGENDIAN_SUPPORTED *(mng_uint32*)pScanline = (*(mng_uint32*)pDataline) | 0x000000FF; #else pScanline[0] = pDataline[0]; pScanline[1] = pDataline[1]; pScanline[2] = pDataline[2]; pScanline[3] = 255; #endif } else { /* now blend (premultiplied) */ t = 255 - s; #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[2-i] = DIV255B8(s * pDataline[2-i] + t * pScanline[2-i]); } } #else pScanline[0] = DIV255B8(s * pDataline[0] + t * pScanline[0]); pScanline[1] = DIV255B8(s * pDataline[1] + t * pScanline[1]); pScanline[2] = DIV255B8(s * pDataline[2] + t * pScanline[2]); #endif pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8_PM, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_16BIT_SUPPORT */ #endif /* MNG_SKIPCANVAS_RGBA8_PM */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_ARGB8 #ifndef MNG_NO_16BIT_SUPPORT #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE mng_retcode mng_display_argb8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint16 iFGa16, iBGa16, iCa16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint16 iCr16, iCg16, iCb16; mng_uint8 iCr8, iCg8, iCb8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ if (pData->bIsRGBA16) /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); else pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *pScanline = *(pDataline+6); *(pScanline+1) = *pDataline; *(pScanline+2) = *(pDataline+2); *(pScanline+3) = *(pDataline+4); pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *pScanline = *(pDataline+3); *(pScanline+1) = *pDataline; *(pScanline+2) = *(pDataline+1); *(pScanline+3) = *(pDataline+2); pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ iFGa16 = mng_get_uint16 (pDataline+6); iBGa16 = (mng_uint16)(*pScanline); iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; if (iFGa16) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) { /* plain copy it */ *pScanline = *(pDataline+6); *(pScanline+1) = *pDataline; *(pScanline+2) = *(pDataline+2); *(pScanline+3) = *(pDataline+4); } else { if (iBGa16 == 0xFFFF) /* background fully opaque ? */ { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGr16 = (mng_uint16)(*(pScanline+1)); iBGg16 = (mng_uint16)(*(pScanline+2)); iBGb16 = (mng_uint16)(*(pScanline+3)); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16); /* and return the composed values */ /* alpha remains fully opaque !!! */ *(pScanline+1) = (mng_uint8)(iFGr16 >> 8); *(pScanline+2) = (mng_uint8)(iFGg16 >> 8); *(pScanline+3) = (mng_uint8)(iFGb16 >> 8); } else { /* scale background up */ iBGr16 = (mng_uint16)(*(pScanline+1)); iBGg16 = (mng_uint16)(*(pScanline+2)); iBGb16 = (mng_uint16)(*(pScanline+3)); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* let's blend */ MNG_BLEND16 (mng_get_uint16 (pDataline ), mng_get_uint16 (pDataline+2), mng_get_uint16 (pDataline+4), iFGa16, iBGr16, iBGg16, iBGb16, iBGa16, iCr16, iCg16, iCb16, iCa16); /* and return the composed values */ *pScanline = (mng_uint8)(iCa16 >> 8); *(pScanline+1) = (mng_uint8)(iCr16 >> 8); *(pScanline+2) = (mng_uint8)(iCg16 >> 8); *(pScanline+3) = (mng_uint8)(iCb16 >> 8); } } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *pScanline; if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *pScanline = *(pDataline+3); *(pScanline+1) = *pDataline; *(pScanline+2) = *(pDataline+1); *(pScanline+3) = *(pDataline+2); } else { if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do simple alpha composing */ /* alpha itself remains fully opaque !!! */ } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, *(pScanline+1), *(pScanline+2), *(pScanline+3), iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = iCa8; *(pScanline+1) = iCr8; *(pScanline+2) = iCg8; *(pScanline+3) = iCb8; } } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8, MNG_LC_END); #endif return MNG_NOERROR; } #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ mng_retcode mng_display_argb8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint16 iFGa16, iBGa16, iCa16; mng_uint16 iFGg16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint16 iCr16, iCg16, iCb16; mng_uint8 iCr8, iCg8, iCb8; mng_uint8 iBps; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8, MNG_LC_START); #endif iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); if (pData->bIsOpaque) /* forget about transparency ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *pScanline = *(pDataline+3*iBps); *(pScanline+1) = *pDataline; *(pScanline+2) = *(pDataline+iBps); *(pScanline+3) = *(pDataline+2*iBps); pScanline += (pData->iColinc << 2); pDataline += 4*iBps; } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ iFGa16 = mng_get_uint16 (pDataline+6); iBGa16 = (mng_uint16)(*pScanline); iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; if (iFGa16) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) { /* plain copy it */ *pScanline = *(pDataline+6); *(pScanline+1) = *pDataline; *(pScanline+2) = *(pDataline+2); *(pScanline+3) = *(pDataline+4); } else { if (iBGa16 == 0xFFFF) /* background fully opaque ? */ { /* get the proper values */ int i; for (i=2; i >= 0; i--) { iFGg16 = mng_get_uint16 (pDataline+i+i); /* scale background up */ iBGg16 = (mng_uint16)(*(pScanline+i+1)); iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; /* now compose */ MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); /* and return the composed values */ /* alpha remains fully opaque !!! */ *(pScanline+i+1) = (mng_uint8)(iFGg16 >> 8); } } else { /* scale background up */ iBGr16 = (mng_uint16)(*(pScanline+1)); iBGg16 = (mng_uint16)(*(pScanline+2)); iBGb16 = (mng_uint16)(*(pScanline+3)); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* let's blend */ MNG_BLEND16 (mng_get_uint16 (pDataline ), mng_get_uint16 (pDataline+2), mng_get_uint16 (pDataline+4), iFGa16, iBGr16, iBGg16, iBGb16, iBGa16, iCr16, iCg16, iCb16, iCa16); /* and return the composed values */ *pScanline = (mng_uint8)(iCa16 >> 8); *(pScanline+1) = (mng_uint8)(iCr16 >> 8); *(pScanline+2) = (mng_uint8)(iCg16 >> 8); *(pScanline+3) = (mng_uint8)(iCb16 >> 8); } } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *pScanline; if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *pScanline = *(pDataline+3); *(pScanline+1) = *pDataline; *(pScanline+2) = *(pDataline+1); *(pScanline+3) = *(pDataline+2); } else { if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do simple alpha composing */ /* alpha itself remains fully opaque !!! */ int i; for (i=2; i >= 0; i--) { MNG_COMPOSE8 (*(pScanline+i+1), *(pDataline+i), iFGa8, *(pScanline+i+1)); } } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, *(pScanline+1), *(pScanline+2), *(pScanline+3), iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = iCa8; *(pScanline+1) = iCr8; *(pScanline+2) = iCg8; *(pScanline+3) = iCb8; } } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ #else /* MNG_NO_16BIT_SUPPORT */ mng_retcode mng_display_argb8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint8 iCr8, iCg8, iCb8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *pScanline = *(pDataline+3); *(pScanline+1) = *pDataline; *(pScanline+2) = *(pDataline+1); *(pScanline+3) = *(pDataline+2); pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *pScanline; if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *pScanline = *(pDataline+3); *(pScanline+1) = *pDataline; *(pScanline+2) = *(pDataline+1); *(pScanline+3) = *(pDataline+2); } else { if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do simple alpha composing */ /* alpha itself remains fully opaque !!! */ #ifdef MNG_OPTIMIZE_FOOTPRINT_COMPOSE int i; for (i=2; i >= 0; i--) { MNG_COMPOSE8 (*(pScanline+i+1), *(pDataline+i), iFGa8, *(pScanline+i+1)); } #else MNG_COMPOSE8 (*(pScanline+1), *pDataline, iFGa8, *(pScanline+1)); MNG_COMPOSE8 (*(pScanline+2), *(pDataline+1), iFGa8, *(pScanline+2)); MNG_COMPOSE8 (*(pScanline+3), *(pDataline+2), iFGa8, *(pScanline+3)); #endif } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, *(pScanline+1), *(pScanline+2), *(pScanline+3), iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = iCa8; *(pScanline+1) = iCr8; *(pScanline+2) = iCg8; *(pScanline+3) = iCb8; } } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_16BIT_SUPPORT */ #endif /* MNG_SKIPCANVAS_ARGB8 */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_ARGB8_PM #ifndef MNG_NO_16BIT_SUPPORT #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE mng_retcode mng_display_argb8_pm (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint32 s, t; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8_PM, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ if (pData->bIsRGBA16) /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); else pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ if ((s = pDataline[6]) == 0) *(mng_uint32*) pScanline = 0; /* set all components = 0 */ else { if (s == 255) { pScanline[0] = 255; pScanline[1] = pDataline[0]; pScanline[2] = pDataline[2]; pScanline[3] = pDataline[4]; } else { pScanline[0] = (mng_uint8)s; #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[3-i] = DIV255B8(s * pDataline[4-i-i]); } } #else pScanline[1] = DIV255B8(s * pDataline[0]); pScanline[2] = DIV255B8(s * pDataline[2]); pScanline[3] = DIV255B8(s * pDataline[4]); #endif } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values and premultiply */ if ((s = pDataline[3]) == 0) *(mng_uint32*) pScanline = 0; /* set all components = 0 */ else { if (s == 255) { pScanline[0] = 255; pScanline[1] = pDataline[0]; pScanline[2] = pDataline[1]; pScanline[3] = pDataline[2]; } else { pScanline[0] = (mng_uint8)s; #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[3-i] = DIV255B8(s * pDataline[2-i]); } } #else pScanline[1] = DIV255B8(s * pDataline[0]); pScanline[2] = DIV255B8(s * pDataline[1]); pScanline[3] = DIV255B8(s * pDataline[2]); #endif } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ if ((s = pDataline[6]) != 0) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if (s == 255) { /* plain copy it */ pScanline[0] = 255; pScanline[1] = pDataline[0]; pScanline[2] = pDataline[2]; pScanline[3] = pDataline[4]; } else { /* now blend (premultiplied) */ t = 255 - s; pScanline[0] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[0]))); #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[3-i] = DIV255B8(s * pDataline[4-i-i] + t * pScanline[3-i]); } } #else pScanline[1] = DIV255B8(s * pDataline[0] + t * pScanline[1]); pScanline[2] = DIV255B8(s * pDataline[2] + t * pScanline[2]); pScanline[3] = DIV255B8(s * pDataline[4] + t * pScanline[3]); #endif } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { if ((s = pDataline[3]) != 0) /* any opacity at all ? */ { /* fully opaque ? */ if (s == 255) { /* then simply copy the values */ pScanline[0] = 255; pScanline[1] = pDataline[0]; pScanline[2] = pDataline[1]; pScanline[3] = pDataline[2]; } else { /* now blend (premultiplied) */ t = 255 - s; pScanline[0] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[0]))); #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[3-i] = DIV255B8(s * pDataline[2-i] + t * pScanline[3-i]); } } #else pScanline[1] = DIV255B8(s * pDataline[0] + t * pScanline[1]); pScanline[2] = DIV255B8(s * pDataline[1] + t * pScanline[2]); pScanline[3] = DIV255B8(s * pDataline[2] + t * pScanline[3]); #endif } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8_PM, MNG_LC_END); #endif return MNG_NOERROR; } #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ mng_retcode mng_display_argb8_pm (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint32 s, t; mng_uint8 iBps; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8_PM, MNG_LC_START); #endif iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ if ((s = pDataline[6]) == 0) *(mng_uint32*) pScanline = 0; /* set all components = 0 */ else { if (s == 255) { pScanline[0] = 255; pScanline[1] = pDataline[0]; pScanline[2] = pDataline[2]; pScanline[3] = pDataline[4]; } else { pScanline[0] = (mng_uint8)s; #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[3-i] = DIV255B8(s * pDataline[4-i-i]); } } #else pScanline[1] = DIV255B8(s * pDataline[0]); pScanline[2] = DIV255B8(s * pDataline[2]); pScanline[3] = DIV255B8(s * pDataline[4]); #endif } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values and premultiply */ if ((s = pDataline[3]) == 0) *(mng_uint32*) pScanline = 0; /* set all components = 0 */ else { if (s == 255) { pScanline[0] = 255; pScanline[1] = pDataline[0]; pScanline[2] = pDataline[1]; pScanline[3] = pDataline[2]; } else { pScanline[0] = (mng_uint8)s; #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[3-i] = DIV255B8(s * pDataline[2-i]); } } #else pScanline[1] = DIV255B8(s * pDataline[0]); pScanline[2] = DIV255B8(s * pDataline[1]); pScanline[3] = DIV255B8(s * pDataline[2]); #endif } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ if ((s = pDataline[6]) != 0) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if (s == 255) { /* plain copy it */ pScanline[0] = 255; pScanline[1] = pDataline[0]; pScanline[2] = pDataline[2]; pScanline[3] = pDataline[4]; } else { /* now blend (premultiplied) */ t = 255 - s; pScanline[0] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[0]))); #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[3-i] = DIV255B8(s * pDataline[4-i-i] + t * pScanline[3-i]); } } #else pScanline[1] = DIV255B8(s * pDataline[0] + t * pScanline[1]); pScanline[2] = DIV255B8(s * pDataline[2] + t * pScanline[2]); pScanline[3] = DIV255B8(s * pDataline[4] + t * pScanline[3]); #endif } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { if ((s = pDataline[3]) != 0) /* any opacity at all ? */ { /* fully opaque ? */ if (s == 255) { /* then simply copy the values */ pScanline[0] = 255; pScanline[1] = pDataline[0]; pScanline[2] = pDataline[1]; pScanline[3] = pDataline[2]; } else { /* now blend (premultiplied) */ t = 255 - s; pScanline[0] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[0]))); #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[3-i] = DIV255B8(s * pDataline[2-i] + t * pScanline[3-i]); } } #else pScanline[1] = DIV255B8(s * pDataline[0] + t * pScanline[1]); pScanline[2] = DIV255B8(s * pDataline[1] + t * pScanline[2]); pScanline[3] = DIV255B8(s * pDataline[2] + t * pScanline[3]); #endif } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8_PM, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ #else /* MNG_NO_16BIT_SUPPORT */ mng_retcode mng_display_argb8_pm (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint32 s, t; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8_PM, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values and premultiply */ if ((s = pDataline[3]) == 0) *(mng_uint32*) pScanline = 0; /* set all components = 0 */ else { if (s == 255) { pScanline[0] = 255; pScanline[1] = pDataline[0]; pScanline[2] = pDataline[1]; pScanline[3] = pDataline[2]; } else { pScanline[0] = (mng_uint8)s; #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[3-i] = DIV255B8(s * pDataline[2-i]); } } #else pScanline[1] = DIV255B8(s * pDataline[0]); pScanline[2] = DIV255B8(s * pDataline[1]); pScanline[3] = DIV255B8(s * pDataline[2]); #endif } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { if ((s = pDataline[3]) != 0) /* any opacity at all ? */ { /* fully opaque ? */ if (s == 255) { /* then simply copy the values */ pScanline[0] = 255; pScanline[1] = pDataline[0]; pScanline[2] = pDataline[1]; pScanline[3] = pDataline[2]; } else { /* now blend (premultiplied) */ t = 255 - s; pScanline[0] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[0]))); #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[3-i] = DIV255B8(s * pDataline[2-i] + t * pScanline[3-i]); } } #else pScanline[1] = DIV255B8(s * pDataline[0] + t * pScanline[1]); pScanline[2] = DIV255B8(s * pDataline[1] + t * pScanline[2]); pScanline[3] = DIV255B8(s * pDataline[2] + t * pScanline[3]); #endif } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8_PM, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_16BIT_SUPPORT */ #endif /* MNG_SKIPCANVAS_ARGB8_PM */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_RGB8_A8 #ifndef MNG_NO_16BIT_SUPPORT #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE mng_retcode mng_display_rgb8_a8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pAlphaline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint16 iFGa16, iBGa16, iCa16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint16 iCr16, iCg16, iCb16; mng_uint8 iCr8, iCg8, iCb8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8_A8, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination rows */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); pAlphaline = (mng_uint8p)pData->fGetalphaline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination rows starting-point */ pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); pAlphaline = pAlphaline + pData->iCol + pData->iDestl; pDataline = pData->pRGBArow; /* address source row */ if (pData->bIsRGBA16) /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); else pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *(pDataline+4); *pAlphaline = *(pDataline+6); pScanline += (pData->iColinc * 3); pAlphaline += pData->iColinc; pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *(pDataline+2); *pAlphaline = *(pDataline+3); pScanline += (pData->iColinc * 3); pAlphaline += pData->iColinc; pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ iFGa16 = mng_get_uint16 (pDataline+6); iBGa16 = (mng_uint16)(*pAlphaline); iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; if (iFGa16) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) { /* plain copy it */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *(pDataline+4); *pAlphaline = *(pDataline+6); } else { if (iBGa16 == 0xFFFF) /* background fully opaque ? */ { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGr16 = (mng_uint16)(*pScanline ); iBGg16 = (mng_uint16)(*(pScanline+1)); iBGb16 = (mng_uint16)(*(pScanline+2)); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16); /* and return the composed values */ *pScanline = (mng_uint8)(iFGr16 >> 8); *(pScanline+1) = (mng_uint8)(iFGg16 >> 8); *(pScanline+2) = (mng_uint8)(iFGb16 >> 8); /* alpha remains fully opaque !!! */ } else { /* scale background up */ iBGr16 = (mng_uint16)(*pScanline ); iBGg16 = (mng_uint16)(*(pScanline+1)); iBGb16 = (mng_uint16)(*(pScanline+2)); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* let's blend */ MNG_BLEND16 (mng_get_uint16 (pDataline ), mng_get_uint16 (pDataline+2), mng_get_uint16 (pDataline+4), iFGa16, iBGr16, iBGg16, iBGb16, iBGa16, iCr16, iCg16, iCb16, iCa16); /* and return the composed values */ *pScanline = (mng_uint8)(iCr16 >> 8); *(pScanline+1) = (mng_uint8)(iCg16 >> 8); *(pScanline+2) = (mng_uint8)(iCb16 >> 8); *pAlphaline = (mng_uint8)(iCa16 >> 8); } } } pScanline += (pData->iColinc * 3); pAlphaline += pData->iColinc; pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *pAlphaline; if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *(pDataline+2); *pAlphaline = *(pDataline+3); } else { if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do alpha composing */ MNG_COMPOSE8 (*pScanline, *pDataline, iFGa8, *pScanline ); MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iFGa8, *(pScanline+1)); MNG_COMPOSE8 (*(pScanline+2), *(pDataline+2), iFGa8, *(pScanline+2)); /* alpha remains fully opaque !!! */ } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, *pScanline, *(pScanline+1), *(pScanline+2), iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = iCr8; *(pScanline+1) = iCg8; *(pScanline+2) = iCb8; *pAlphaline = iCa8; } } } pScanline += (pData->iColinc * 3); pAlphaline += pData->iColinc; pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8_A8, MNG_LC_END); #endif return MNG_NOERROR; } #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ mng_retcode mng_display_rgb8_a8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pAlphaline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint16 iFGa16, iBGa16, iCa16; mng_uint16 iFGg16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint16 iCr16, iCg16, iCb16; mng_uint8 iCr8, iCg8, iCb8; mng_uint8 iBps; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8_A8, MNG_LC_START); #endif iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination rows */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); pAlphaline = (mng_uint8p)pData->fGetalphaline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination rows starting-point */ pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); pAlphaline = pAlphaline + pData->iCol + pData->iDestl; pDataline = pData->pRGBArow; /* address source row */ /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); if (pData->bIsOpaque) /* forget about transparency ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+iBps); *(pScanline+2) = *(pDataline+2*iBps); *pAlphaline = *(pDataline+3*iBps); pScanline += (pData->iColinc * 3); pAlphaline += pData->iColinc; pDataline += 4*iBps; } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ iFGa16 = mng_get_uint16 (pDataline+6); iBGa16 = (mng_uint16)(*pAlphaline); iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; if (iFGa16) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) { /* plain copy it */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *(pDataline+4); *pAlphaline = *(pDataline+6); } else { if (iBGa16 == 0xFFFF) /* background fully opaque ? */ { /* get the proper values */ int i; for (i=2; i >= 0; i--) { iFGg16 = mng_get_uint16 (pDataline+i+i); /* scale background up */ iBGg16 = (mng_uint16)(*(pScanline+i)); iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; /* now compose */ MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); /* and return the composed values */ *(pScanline+i) = (mng_uint8)(iFGg16 >> 8); /* alpha remains fully opaque !!! */ } } else { /* scale background up */ iBGr16 = (mng_uint16)(*pScanline ); iBGg16 = (mng_uint16)(*(pScanline+1)); iBGb16 = (mng_uint16)(*(pScanline+2)); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* let's blend */ MNG_BLEND16 (mng_get_uint16 (pDataline ), mng_get_uint16 (pDataline+2), mng_get_uint16 (pDataline+4), iFGa16, iBGr16, iBGg16, iBGb16, iBGa16, iCr16, iCg16, iCb16, iCa16); /* and return the composed values */ *pScanline = (mng_uint8)(iCr16 >> 8); *(pScanline+1) = (mng_uint8)(iCg16 >> 8); *(pScanline+2) = (mng_uint8)(iCb16 >> 8); *pAlphaline = (mng_uint8)(iCa16 >> 8); } } } pScanline += (pData->iColinc * 3); pAlphaline += pData->iColinc; pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *pAlphaline; if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *(pDataline+2); *pAlphaline = *(pDataline+3); } else { if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do alpha composing */ int i; for (i=2; i >= 0; i--) { MNG_COMPOSE8 (*(pScanline+i), *(pDataline+i), iFGa8, *(pScanline+i)); } /* alpha remains fully opaque !!! */ } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, *pScanline, *(pScanline+1), *(pScanline+2), iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = iCr8; *(pScanline+1) = iCg8; *(pScanline+2) = iCb8; *pAlphaline = iCa8; } } } pScanline += (pData->iColinc * 3); pAlphaline += pData->iColinc; pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8_A8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ #else /* MNG_NO_16BIT_SUPPORT */ mng_retcode mng_display_rgb8_a8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pAlphaline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint8 iCr8, iCg8, iCb8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8_A8, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination rows */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); pAlphaline = (mng_uint8p)pData->fGetalphaline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination rows starting-point */ pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); pAlphaline = pAlphaline + pData->iCol + pData->iDestl; pDataline = pData->pRGBArow; /* address source row */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *(pDataline+2); *pAlphaline = *(pDataline+3); pScanline += (pData->iColinc * 3); pAlphaline += pData->iColinc; pDataline += 4; } } } else { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *pAlphaline; if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *pScanline = *pDataline; *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *(pDataline+2); *pAlphaline = *(pDataline+3); } else { if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do alpha composing */ #ifdef MNG_OPTIMIZE_FOOTPRINT_COMPOSE int i; for (i=2; i >= 0; i--) { MNG_COMPOSE8 (*(pScanline+i), *(pDataline+i), iFGa8, *(pScanline+i)); } #else MNG_COMPOSE8 (*pScanline, *pDataline, iFGa8, *pScanline ); MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iFGa8, *(pScanline+1)); MNG_COMPOSE8 (*(pScanline+2), *(pDataline+2), iFGa8, *(pScanline+2)); #endif /* alpha remains fully opaque !!! */ } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, *pScanline, *(pScanline+1), *(pScanline+2), iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = iCr8; *(pScanline+1) = iCg8; *(pScanline+2) = iCb8; *pAlphaline = iCa8; } } } pScanline += (pData->iColinc * 3); pAlphaline += pData->iColinc; pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8_A8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_16BIT_SUPPORT */ #endif /* MNG_SKIPCANVAS_RGB8_A8 */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_BGR8 #ifndef MNG_NO_16BIT_SUPPORT #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE mng_retcode mng_display_bgr8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint16 iA16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint8 iA8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR8, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); pDataline = pData->pRGBArow; /* address source row */ if (pData->bIsRGBA16) /* adjust source row starting-point */ pDataline = pDataline + (pData->iSourcel / pData->iColinc) * 8; else pDataline = pDataline + (pData->iSourcel / pData->iColinc) * 4; if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *pScanline = *(pDataline+4); *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *pDataline; pScanline += (pData->iColinc * 3); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *pScanline = *(pDataline+2); *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *pDataline; pScanline += (pData->iColinc * 3); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha value */ iA16 = mng_get_uint16 (pDataline+6); if (iA16) /* any opacity at all ? */ { if (iA16 == 0xFFFF) /* fully opaque ? */ { /* scale down by dropping the LSB */ *pScanline = *(pDataline+4); *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *pDataline; } else { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGr16 = (mng_uint16)(*(pScanline+2)); iBGg16 = (mng_uint16)(*(pScanline+1)); iBGb16 = (mng_uint16)(*pScanline ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); /* and return the composed values */ *pScanline = (mng_uint8)(iFGb16 >> 8); *(pScanline+1) = (mng_uint8)(iFGg16 >> 8); *(pScanline+2) = (mng_uint8)(iFGr16 >> 8); } } pScanline += (pData->iColinc * 3); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *pScanline = *(pDataline+2); *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *pDataline; } else { /* do alpha composing */ MNG_COMPOSE8 (*pScanline, *(pDataline+2), iA8, *pScanline ); MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iA8, *(pScanline+1)); MNG_COMPOSE8 (*(pScanline+2), *pDataline, iA8, *(pScanline+2)); } } pScanline += (pData->iColinc * 3); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR8, MNG_LC_END); #endif return MNG_NOERROR; } #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ mng_retcode mng_display_bgr8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint16 iA16; mng_uint16 iFGg16; mng_uint16 iBGg16; mng_uint8 iA8; mng_uint8 iBps; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR8, MNG_LC_START); #endif iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); pDataline = pData->pRGBArow; /* address source row */ /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); if (pData->bIsOpaque) /* forget about transparency ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *pScanline = *(pDataline+2*iBps); *(pScanline+1) = *(pDataline+iBps); *(pScanline+2) = *pDataline; pScanline += (pData->iColinc * 3); pDataline += 4*iBps; } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha value */ iA16 = mng_get_uint16 (pDataline+6); if (iA16) /* any opacity at all ? */ { if (iA16 == 0xFFFF) /* fully opaque ? */ { /* scale down by dropping the LSB */ *pScanline = *(pDataline+4); *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *pDataline; } else { /* get the proper values */ int i; for (i=2; i >= 0; i--) { iFGg16 = mng_get_uint16 (pDataline+i+i); /* scale background up */ iBGg16 = (mng_uint16)(*(pScanline+2-i)); iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; /* now compose */ MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); /* and return the composed values */ *(pScanline+2-i) = (mng_uint8)(iFGg16 >> 8); } } } pScanline += (pData->iColinc * 3); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *pScanline = *(pDataline+2); *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *pDataline; } else { /* do alpha composing */ int i; for (i=2; i >= 0; i--) { MNG_COMPOSE8 (*(pScanline+i), *(pDataline+2-i), iA8, *(pScanline+i)); } } } pScanline += (pData->iColinc * 3); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ #else /* MNG_NO_16BIT_SUPPORT */ mng_retcode mng_display_bgr8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iA8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR8, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); pDataline = pData->pRGBArow; /* address source row */ pDataline = pDataline + (pData->iSourcel / pData->iColinc) * 4; if (pData->bIsOpaque) /* forget about transparency ? */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *pScanline = *(pDataline+2); *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *pDataline; pScanline += (pData->iColinc * 3); pDataline += 4; } } } else { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *pScanline = *(pDataline+2); *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *pDataline; } else { /* do alpha composing */ #ifdef MNG_OPTIMIZE_FOOTPRINT_COMPOSE int i; for (i=2; i >= 0; i--) { MNG_COMPOSE8 (*(pScanline+i), *(pDataline+2-i), iA8, *(pScanline+i)); } #else MNG_COMPOSE8 (*pScanline, *(pDataline+2), iA8, *pScanline ); MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iA8, *(pScanline+1)); MNG_COMPOSE8 (*(pScanline+2), *pDataline, iA8, *(pScanline+2)); #endif } } pScanline += (pData->iColinc * 3); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_16BIT_SUPPORT */ #endif /* MNG_SKIPCANVAS_BGR8 */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_BGRX8 #ifndef MNG_NO_16BIT_SUPPORT #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE mng_retcode mng_display_bgrx8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint16 iA16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint8 iA8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRX8, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ if (pData->bIsRGBA16) /* adjust source row starting-point */ pDataline = pDataline + (pData->iSourcel / pData->iColinc) * 8; else pDataline = pDataline + (pData->iSourcel / pData->iColinc) * 4; if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *pScanline = *(pDataline+4); *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *pDataline; *(pScanline+3) = 0xFF; /* filler byte */ pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *pScanline = *(pDataline+2); *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *pDataline; *(pScanline+3) = 0xFF; /* filler byte */ pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha value */ iA16 = mng_get_uint16 (pDataline+6); if (iA16) /* any opacity at all ? */ { if (iA16 == 0xFFFF) /* fully opaque ? */ { /* scale down by dropping the LSB */ *pScanline = *(pDataline+4); *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *pDataline; *(pScanline+3) = 0xFF; /* filler byte */ } else { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGr16 = (mng_uint16)(*(pScanline+2)); iBGg16 = (mng_uint16)(*(pScanline+1)); iBGb16 = (mng_uint16)(*pScanline ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); /* and return the composed values */ *pScanline = (mng_uint8)(iFGb16 >> 8); *(pScanline+1) = (mng_uint8)(iFGg16 >> 8); *(pScanline+2) = (mng_uint8)(iFGr16 >> 8); *(pScanline+3) = 0xFF; /* filler byte */ } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *pScanline = *(pDataline+2); *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *pDataline; *(pScanline+3) = 0xFF; /* filler byte */ } else { /* do alpha composing */ MNG_COMPOSE8 (*pScanline, *(pDataline+2), iA8, *pScanline ); MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iA8, *(pScanline+1)); MNG_COMPOSE8 (*(pScanline+2), *pDataline, iA8, *(pScanline+2)); *(pScanline+3) = 0xFF; /* filler byte */ } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRX8, MNG_LC_END); #endif return MNG_NOERROR; } #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ mng_retcode mng_display_bgrx8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint16 iA16; mng_uint16 iFGg16; mng_uint16 iBGg16; mng_uint8 iA8; mng_uint8 iBps; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRX8, MNG_LC_START); #endif iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); if (pData->bIsOpaque) /* forget about transparency ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *pScanline = *(pDataline+2*iBps); *(pScanline+1) = *(pDataline+iBps); *(pScanline+2) = *pDataline; *(pScanline+3) = 0xFF; /* filler byte */ pScanline += (pData->iColinc << 2); pDataline += 4*iBps; } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha value */ iA16 = mng_get_uint16 (pDataline+6); if (iA16) /* any opacity at all ? */ { if (iA16 == 0xFFFF) /* fully opaque ? */ { /* scale down by dropping the LSB */ *pScanline = *(pDataline+4); *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *pDataline; *(pScanline+3) = 0xFF; /* filler byte */ } else { /* get the proper values */ int i; for (i=2; i >= 0; i--) { iFGg16 = mng_get_uint16 (pDataline+i+i); /* scale background up */ iBGg16 = (mng_uint16)(*(pScanline+2-i)); iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; /* now compose */ MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); /* and return the composed values */ *(pScanline+2-i) = (mng_uint8)(iFGg16 >> 8); } *(pScanline+3) = 0xFF; /* filler byte */ } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *pScanline = *(pDataline+2); *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *pDataline; *(pScanline+3) = 0xFF; /* filler byte */ } else { /* do alpha composing */ int i; for (i=2; i >= 0; i--) { MNG_COMPOSE8 (*(pScanline+i), *(pDataline+2-i), iA8, *(pScanline+i)); } *(pScanline+3) = 0xFF; /* filler byte */ } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRX8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ #else /* MNG_NO_16BIT_SUPPORT */ mng_retcode mng_display_bgrx8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iA8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRX8, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ pDataline = pDataline + (pData->iSourcel / pData->iColinc) * 4; if (pData->bIsOpaque) /* forget about transparency ? */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *pScanline = *(pDataline+2); *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *pDataline; *(pScanline+3) = 0xFF; /* filler byte */ pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *pScanline = *(pDataline+2); *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *pDataline; *(pScanline+3) = 0xFF; /* filler byte */ } else { /* do alpha composing */ #ifdef MNG_OPTIMIZE_FOOTPRINT_COMPOSE int i; for (i=2; i >= 0; i--) { MNG_COMPOSE8 (*(pScanline+i), *(pDataline+2-i), iA8, *(pScanline+i)); } #else MNG_COMPOSE8 (*pScanline, *(pDataline+2), iA8, *pScanline ); MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iA8, *(pScanline+1)); MNG_COMPOSE8 (*(pScanline+2), *pDataline, iA8, *(pScanline+2)); #endif *(pScanline+3) = 0xFF; /* filler byte */ } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRX8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_16BIT_SUPPORT */ #endif /* MNG_SKIPCANVAS_BGRX8 */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_BGRA8 #ifndef MNG_NO_16BIT_SUPPORT #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE mng_retcode mng_display_bgra8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint16 iFGa16, iBGa16, iCa16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint16 iCr16, iCg16, iCb16; mng_uint8 iCr8, iCg8, iCb8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ if (pData->bIsRGBA16) /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); else pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *pScanline = *(pDataline+4); *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *pDataline; *(pScanline+3) = *(pDataline+6); pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *pScanline = *(pDataline+2); *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *pDataline; *(pScanline+3) = *(pDataline+3); pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ iFGa16 = mng_get_uint16 (pDataline+6); iBGa16 = (mng_uint16)(*(pScanline+3)); iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; if (iFGa16) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) { /* plain copy it */ *pScanline = *(pDataline+4); *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *pDataline; *(pScanline+3) = *(pDataline+6); } else { if (iBGa16 == 0xFFFF) /* background fully opaque ? */ { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGr16 = (mng_uint16)(*(pScanline+2)); iBGg16 = (mng_uint16)(*(pScanline+1)); iBGb16 = (mng_uint16)(*pScanline ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16); /* and return the composed values */ *pScanline = (mng_uint8)(iFGb16 >> 8); *(pScanline+1) = (mng_uint8)(iFGg16 >> 8); *(pScanline+2) = (mng_uint8)(iFGr16 >> 8); /* alpha remains fully opaque !!! */ } else { /* scale background up */ iBGr16 = (mng_uint16)(*(pScanline+2)); iBGg16 = (mng_uint16)(*(pScanline+1)); iBGb16 = (mng_uint16)(*pScanline ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* let's blend */ MNG_BLEND16 (mng_get_uint16 (pDataline ), mng_get_uint16 (pDataline+2), mng_get_uint16 (pDataline+4), iFGa16, iBGr16, iBGg16, iBGb16, iBGa16, iCr16, iCg16, iCb16, iCa16); /* and return the composed values */ *pScanline = (mng_uint8)(iCb16 >> 8); *(pScanline+1) = (mng_uint8)(iCg16 >> 8); *(pScanline+2) = (mng_uint8)(iCr16 >> 8); *(pScanline+3) = (mng_uint8)(iCa16 >> 8); } } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *(pScanline+3); if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *pScanline = *(pDataline+2); *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *pDataline; *(pScanline+3) = *(pDataline+3); } else { if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do alpha composing */ MNG_COMPOSE8 (*pScanline, *(pDataline+2), iFGa8, *pScanline ); MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iFGa8, *(pScanline+1)); MNG_COMPOSE8 (*(pScanline+2), *pDataline, iFGa8, *(pScanline+2)); /* alpha remains fully opaque !!! */ } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, *(pScanline+2), *(pScanline+1), *pScanline, iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = iCb8; *(pScanline+1) = iCg8; *(pScanline+2) = iCr8; *(pScanline+3) = iCa8; } } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8, MNG_LC_END); #endif return MNG_NOERROR; } #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ mng_retcode mng_display_bgra8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint16 iFGa16, iBGa16, iCa16; mng_uint16 iFGg16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint16 iCr16, iCg16, iCb16; mng_uint8 iCr8, iCg8, iCb8; mng_uint8 iBps; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8, MNG_LC_START); #endif iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); if (pData->bIsOpaque) /* forget about transparency ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *pScanline = *(pDataline+2*iBps); *(pScanline+1) = *(pDataline+iBps); *(pScanline+2) = *pDataline; *(pScanline+3) = *(pDataline+3*iBps); pScanline += (pData->iColinc << 2); pDataline += 4*iBps; } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ iFGa16 = mng_get_uint16 (pDataline+6); iBGa16 = (mng_uint16)(*(pScanline+3)); iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; if (iFGa16) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) { /* plain copy it */ *pScanline = *(pDataline+4); *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *pDataline; *(pScanline+3) = *(pDataline+6); } else { if (iBGa16 == 0xFFFF) /* background fully opaque ? */ { /* get the proper values */ int i; for (i=2; i >= 0; i--) { iFGg16 = mng_get_uint16 (pDataline+i+i); /* scale background up */ iBGg16 = (mng_uint16)(*(pScanline+2-i)); iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; /* now compose */ MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); /* and return the composed values */ *(pScanline+2-i) = (mng_uint8)(iFGg16 >> 8); /* alpha remains fully opaque !!! */ } } else { /* scale background up */ iBGr16 = (mng_uint16)(*(pScanline+2)); iBGg16 = (mng_uint16)(*(pScanline+1)); iBGb16 = (mng_uint16)(*pScanline ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* let's blend */ MNG_BLEND16 (mng_get_uint16 (pDataline ), mng_get_uint16 (pDataline+2), mng_get_uint16 (pDataline+4), iFGa16, iBGr16, iBGg16, iBGb16, iBGa16, iCr16, iCg16, iCb16, iCa16); /* and return the composed values */ *pScanline = (mng_uint8)(iCb16 >> 8); *(pScanline+1) = (mng_uint8)(iCg16 >> 8); *(pScanline+2) = (mng_uint8)(iCr16 >> 8); *(pScanline+3) = (mng_uint8)(iCa16 >> 8); } } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *(pScanline+3); if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *pScanline = *(pDataline+2); *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *pDataline; *(pScanline+3) = *(pDataline+3); } else { if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do alpha composing */ int i; for (i=2; i >= 0; i--) { MNG_COMPOSE8 (*(pScanline+i), *(pDataline+2-i), iFGa8, *(pScanline+i)); } /* alpha remains fully opaque !!! */ } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, *(pScanline+2), *(pScanline+1), *pScanline, iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = iCb8; *(pScanline+1) = iCg8; *(pScanline+2) = iCr8; *(pScanline+3) = iCa8; } } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ #else /* MNG_NO_16BIT_SUPPORT */ mng_retcode mng_display_bgra8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint8 iCr8, iCg8, iCb8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *pScanline = *(pDataline+2); *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *pDataline; *(pScanline+3) = *(pDataline+3); pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *(pScanline+3); if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *pScanline = *(pDataline+2); *(pScanline+1) = *(pDataline+1); *(pScanline+2) = *pDataline; *(pScanline+3) = *(pDataline+3); } else { if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do alpha composing */ #ifdef MNG_OPTIMIZE_FOOTPRINT_COMPOSE int i; for (i=2; i >= 0; i--) { MNG_COMPOSE8 (*(pScanline+i), *(pDataline+2-i), iFGa8, *(pScanline+i)); } #else MNG_COMPOSE8 (*pScanline, *(pDataline+2), iFGa8, *pScanline ); MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iFGa8, *(pScanline+1)); MNG_COMPOSE8 (*(pScanline+2), *pDataline, iFGa8, *(pScanline+2)); #endif /* alpha remains fully opaque !!! */ } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, *(pScanline+2), *(pScanline+1), *pScanline, iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = iCb8; *(pScanline+1) = iCg8; *(pScanline+2) = iCr8; *(pScanline+3) = iCa8; } } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_16BIT_SUPPORT */ #endif /* MNG_SKIPCANVAS_BGRA8 */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_BGRA8_PM #ifndef MNG_NO_16BIT_SUPPORT #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE mng_retcode mng_display_bgra8_pm (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint32 s, t; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8PM, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ if (pData->bIsRGBA16) /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); else pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ if ((s = pDataline[6]) == 0) *(mng_uint32*) pScanline = 0; /* set all components = 0 */ else { if (s == 255) { pScanline[0] = pDataline[4]; pScanline[1] = pDataline[2]; pScanline[2] = pDataline[0]; pScanline[3] = 255; } else { pScanline[0] = DIV255B8(s * pDataline[4]); pScanline[1] = DIV255B8(s * pDataline[2]); pScanline[2] = DIV255B8(s * pDataline[0]); pScanline[3] = (mng_uint8)s; } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values and premultiply */ if ((s = pDataline[3]) == 0) *(mng_uint32*) pScanline = 0; /* set all components = 0 */ else { if (s == 255) { pScanline[0] = pDataline[2]; pScanline[1] = pDataline[1]; pScanline[2] = pDataline[0]; pScanline[3] = 255; } else { pScanline[0] = DIV255B8(s * pDataline[2]); pScanline[1] = DIV255B8(s * pDataline[1]); pScanline[2] = DIV255B8(s * pDataline[0]); pScanline[3] = (mng_uint8)s; } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ if ((s = pDataline[6]) != 0) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if (s == 255) { /* plain copy it */ pScanline[0] = pDataline[4]; pScanline[1] = pDataline[2]; pScanline[2] = pDataline[0]; pScanline[3] = 255; } else { /* now blend (premultiplied) */ t = 255 - s; #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[i] = DIV255B8(s * pDataline[4-i-i] + t * pScanline[i]); } } #else pScanline[0] = DIV255B8(s * pDataline[4] + t * pScanline[0]); pScanline[1] = DIV255B8(s * pDataline[2] + t * pScanline[1]); pScanline[2] = DIV255B8(s * pDataline[0] + t * pScanline[2]); #endif pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { if ((s = pDataline[3]) != 0) /* any opacity at all ? */ { /* fully opaque ? */ if (s == 255) { /* then simply copy the values */ pScanline[0] = pDataline[2]; pScanline[1] = pDataline[1]; pScanline[2] = pDataline[0]; pScanline[3] = 255; } else { /* now blend (premultiplied) */ t = 255 - s; #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[i] = DIV255B8(s * pDataline[2-i] + t * pScanline[i]); } } #else pScanline[0] = DIV255B8(s * pDataline[2] + t * pScanline[0]); pScanline[1] = DIV255B8(s * pDataline[1] + t * pScanline[1]); pScanline[2] = DIV255B8(s * pDataline[0] + t * pScanline[2]); #endif pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8PM, MNG_LC_END); #endif return MNG_NOERROR; } #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ mng_retcode mng_display_bgra8_pm (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint32 s, t; mng_uint8 iBps; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8PM, MNG_LC_START); #endif iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ if ((s = pDataline[6]) == 0) *(mng_uint32*) pScanline = 0; /* set all components = 0 */ else { if (s == 255) { pScanline[0] = pDataline[4]; pScanline[1] = pDataline[2]; pScanline[2] = pDataline[0]; pScanline[3] = 255; } else { #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV int i; for (i=2; i >= 0; i--) { pScanline[i] = DIV255B8(s * pDataline[4-i-i]); } #else pScanline[0] = DIV255B8(s * pDataline[4]); pScanline[1] = DIV255B8(s * pDataline[2]); pScanline[2] = DIV255B8(s * pDataline[0]); #endif pScanline[3] = (mng_uint8)s; } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values and premultiply */ if ((s = pDataline[3]) == 0) *(mng_uint32*) pScanline = 0; /* set all components = 0 */ else { if (s == 255) { pScanline[0] = pDataline[2]; pScanline[1] = pDataline[1]; pScanline[2] = pDataline[0]; pScanline[3] = 255; } else { #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV int i; for (i=2; i >= 0; i--) { pScanline[i] = DIV255B8(s * pDataline[2-i]); } #else pScanline[0] = DIV255B8(s * pDataline[2]); pScanline[1] = DIV255B8(s * pDataline[1]); pScanline[2] = DIV255B8(s * pDataline[0]); #endif pScanline[3] = (mng_uint8)s; } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ if ((s = pDataline[6]) != 0) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if (s == 255) { /* plain copy it */ pScanline[0] = pDataline[4]; pScanline[1] = pDataline[2]; pScanline[2] = pDataline[0]; pScanline[3] = 255; } else { /* now blend (premultiplied) */ t = 255 - s; #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[i] = DIV255B8(s * pDataline[4-i-i] + t * pScanline[i]); } } #else pScanline[0] = DIV255B8(s * pDataline[4] + t * pScanline[0]); pScanline[1] = DIV255B8(s * pDataline[2] + t * pScanline[1]); pScanline[2] = DIV255B8(s * pDataline[0] + t * pScanline[2]); #endif pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { if ((s = pDataline[3]) != 0) /* any opacity at all ? */ { /* fully opaque ? */ if (s == 255) { /* then simply copy the values */ pScanline[0] = pDataline[2]; pScanline[1] = pDataline[1]; pScanline[2] = pDataline[0]; pScanline[3] = 255; } else { /* now blend (premultiplied) */ t = 255 - s; #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[i] = DIV255B8(s * pDataline[2-i] + t * pScanline[i]); } } #else pScanline[0] = DIV255B8(s * pDataline[2] + t * pScanline[0]); pScanline[1] = DIV255B8(s * pDataline[1] + t * pScanline[1]); pScanline[2] = DIV255B8(s * pDataline[0] + t * pScanline[2]); #endif pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8PM, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ #else /* MNG_NO_16BIT_SUPPORT */ mng_retcode mng_display_bgra8_pm (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint32 s, t; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8PM, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values and premultiply */ if ((s = pDataline[3]) == 0) *(mng_uint32*) pScanline = 0; /* set all components = 0 */ else { if (s == 255) { pScanline[0] = pDataline[2]; pScanline[1] = pDataline[1]; pScanline[2] = pDataline[0]; pScanline[3] = 255; } else { #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV int i; for (i=2; i >= 0; i--) { pScanline[i] = DIV255B8(s * pDataline[2-i]); } #else pScanline[0] = DIV255B8(s * pDataline[2]); pScanline[1] = DIV255B8(s * pDataline[1]); pScanline[2] = DIV255B8(s * pDataline[0]); #endif pScanline[3] = (mng_uint8)s; } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { if ((s = pDataline[3]) != 0) /* any opacity at all ? */ { /* fully opaque ? */ if (s == 255) { /* then simply copy the values */ pScanline[0] = pDataline[2]; pScanline[1] = pDataline[1]; pScanline[2] = pDataline[0]; pScanline[3] = 255; } else { /* now blend (premultiplied) */ t = 255 - s; #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[i] = DIV255B8(s * pDataline[2-i] + t * pScanline[i]); } } #else pScanline[0] = DIV255B8(s * pDataline[2] + t * pScanline[0]); pScanline[1] = DIV255B8(s * pDataline[1] + t * pScanline[1]); pScanline[2] = DIV255B8(s * pDataline[0] + t * pScanline[2]); #endif pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8PM, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_16BIT_SUPPORT */ #endif /* MNG_SKIPCANVAS_BGRA8_PM */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_ABGR8 #ifndef MNG_NO_16BIT_SUPPORT #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE mng_retcode mng_display_abgr8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint16 iFGa16, iBGa16, iCa16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint16 iCr16, iCg16, iCb16; mng_uint8 iCr8, iCg8, iCb8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ if (pData->bIsRGBA16) /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); else pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *pScanline = *(pDataline+6); *(pScanline+1) = *(pDataline+4); *(pScanline+2) = *(pDataline+2); *(pScanline+3) = *pDataline; pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *pScanline = *(pDataline+3); *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *(pDataline+1); *(pScanline+3) = *pDataline; pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ iFGa16 = mng_get_uint16 (pDataline+6); iBGa16 = (mng_uint16)(*pScanline); iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; if (iFGa16) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) { /* plain copy it */ *pScanline = *(pDataline+6); *(pScanline+1) = *(pDataline+4); *(pScanline+2) = *(pDataline+2); *(pScanline+3) = *pDataline; } else { if (iBGa16 == 0xFFFF) /* background fully opaque ? */ { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGr16 = (mng_uint16)(*(pScanline+3)); iBGg16 = (mng_uint16)(*(pScanline+2)); iBGb16 = (mng_uint16)(*(pScanline+1)); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16); /* and return the composed values */ /* alpha itself remains fully opaque !!! */ *(pScanline+1) = (mng_uint8)(iFGb16 >> 8); *(pScanline+2) = (mng_uint8)(iFGg16 >> 8); *(pScanline+3) = (mng_uint8)(iFGr16 >> 8); } else { /* scale background up */ iBGr16 = (mng_uint16)(*(pScanline+3)); iBGg16 = (mng_uint16)(*(pScanline+2)); iBGb16 = (mng_uint16)(*(pScanline+1)); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* let's blend */ MNG_BLEND16 (mng_get_uint16 (pDataline ), mng_get_uint16 (pDataline+2), mng_get_uint16 (pDataline+4), iFGa16, iBGr16, iBGg16, iBGb16, iBGa16, iCr16, iCg16, iCb16, iCa16); /* and return the composed values */ *pScanline = (mng_uint8)(iCa16 >> 8); *(pScanline+1) = (mng_uint8)(iCb16 >> 8); *(pScanline+2) = (mng_uint8)(iCg16 >> 8); *(pScanline+3) = (mng_uint8)(iCr16 >> 8); } } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *pScanline; if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *pScanline = *(pDataline+3); *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *(pDataline+1); *(pScanline+3) = *pDataline; } else { if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do simple alpha composing */ /* alpha itself remains fully opaque !!! */ MNG_COMPOSE8 (*(pScanline+1), *(pDataline+2), iFGa8, *(pScanline+1)); MNG_COMPOSE8 (*(pScanline+2), *(pDataline+1), iFGa8, *(pScanline+2)); MNG_COMPOSE8 (*(pScanline+3), *pDataline, iFGa8, *(pScanline+3)); } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, *(pScanline+3), *(pScanline+2), *(pScanline+1), iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = iCa8; *(pScanline+1) = iCb8; *(pScanline+2) = iCg8; *(pScanline+3) = iCr8; } } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8, MNG_LC_END); #endif return MNG_NOERROR; } #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ mng_retcode mng_display_abgr8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint16 iFGa16, iBGa16, iCa16; mng_uint16 iFGg16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint16 iCr16, iCg16, iCb16; mng_uint8 iCr8, iCg8, iCb8; mng_uint8 iBps; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8, MNG_LC_START); #endif iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); if (pData->bIsOpaque) /* forget about transparency ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *pScanline = *(pDataline+3*iBps); *(pScanline+1) = *(pDataline+2*iBps); *(pScanline+2) = *(pDataline+iBps); *(pScanline+3) = *pDataline; pScanline += (pData->iColinc << 2); pDataline += 4*iBps; } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ iFGa16 = mng_get_uint16 (pDataline+6); iBGa16 = (mng_uint16)(*pScanline); iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; if (iFGa16) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) { /* plain copy it */ *pScanline = *(pDataline+6); *(pScanline+1) = *(pDataline+4); *(pScanline+2) = *(pDataline+2); *(pScanline+3) = *pDataline; } else { if (iBGa16 == 0xFFFF) /* background fully opaque ? */ { /* get the proper values */ int i; for (i=2; i >= 0; i--) { iFGg16 = mng_get_uint16 (pDataline+i+i); /* scale background up */ iBGg16 = (mng_uint16)(*(pScanline+3-i)); iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; /* now compose */ MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); /* and return the composed values */ /* alpha itself remains fully opaque !!! */ *(pScanline+3-i) = (mng_uint8)(iFGg16 >> 8); } } else { /* scale background up */ iBGr16 = (mng_uint16)(*(pScanline+3)); iBGg16 = (mng_uint16)(*(pScanline+2)); iBGb16 = (mng_uint16)(*(pScanline+1)); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* let's blend */ MNG_BLEND16 (mng_get_uint16 (pDataline ), mng_get_uint16 (pDataline+2), mng_get_uint16 (pDataline+4), iFGa16, iBGr16, iBGg16, iBGb16, iBGa16, iCr16, iCg16, iCb16, iCa16); /* and return the composed values */ *pScanline = (mng_uint8)(iCa16 >> 8); *(pScanline+1) = (mng_uint8)(iCb16 >> 8); *(pScanline+2) = (mng_uint8)(iCg16 >> 8); *(pScanline+3) = (mng_uint8)(iCr16 >> 8); } } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *pScanline; if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *pScanline = *(pDataline+3); *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *(pDataline+1); *(pScanline+3) = *pDataline; } else { if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do simple alpha composing */ /* alpha itself remains fully opaque !!! */ int i; for (i=2; i >= 0; i--) { MNG_COMPOSE8 (*(pScanline+i+1), *(pDataline+2-i), iFGa8, *(pScanline+i+1)); } } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, *(pScanline+3), *(pScanline+2), *(pScanline+1), iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = iCa8; *(pScanline+1) = iCb8; *(pScanline+2) = iCg8; *(pScanline+3) = iCr8; } } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ #else /* MNG_NO_16BIT_SUPPORT */ mng_retcode mng_display_abgr8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint8 iCr8, iCg8, iCb8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *pScanline = *(pDataline+3); *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *(pDataline+1); *(pScanline+3) = *pDataline; pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *pScanline; if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *pScanline = *(pDataline+3); *(pScanline+1) = *(pDataline+2); *(pScanline+2) = *(pDataline+1); *(pScanline+3) = *pDataline; } else { if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do simple alpha composing */ /* alpha itself remains fully opaque !!! */ #ifdef MNG_OPTIMIZE_FOOTPRINT_COMPOSE int i; for (i=2; i >= 0; i--) { MNG_COMPOSE8 (*(pScanline+i+1), *(pDataline+2-i), iFGa8, *(pScanline+i+1)); } #else MNG_COMPOSE8 (*(pScanline+1), *(pDataline+2), iFGa8, *(pScanline+1)); MNG_COMPOSE8 (*(pScanline+2), *(pDataline+1), iFGa8, *(pScanline+2)); MNG_COMPOSE8 (*(pScanline+3), *pDataline, iFGa8, *(pScanline+3)); #endif } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, *(pScanline+3), *(pScanline+2), *(pScanline+1), iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = iCa8; *(pScanline+1) = iCb8; *(pScanline+2) = iCg8; *(pScanline+3) = iCr8; } } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_16BIT_SUPPORT */ #endif /* MNG_SKIPCANVAS_ABGR8 */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_ABGR8_PM #ifndef MNG_NO_16BIT_SUPPORT #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE mng_retcode mng_display_abgr8_pm (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint32 s, t; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8_PM, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ if (pData->bIsRGBA16) /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); else pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ if ((s = pDataline[6]) == 0) *(mng_uint32*) pScanline = 0; /* set all components = 0 */ else { if (s == 255) { pScanline[0] = 255; pScanline[1] = pDataline[4]; pScanline[2] = pDataline[2]; pScanline[3] = pDataline[0]; } else { pScanline[0] = (mng_uint8)s; #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[i+1] = DIV255B8(s * pDataline[4-i-i]); } } #else pScanline[1] = DIV255B8(s * pDataline[4]); pScanline[2] = DIV255B8(s * pDataline[2]); pScanline[3] = DIV255B8(s * pDataline[0]); #endif } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values and premultiply */ if ((s = pDataline[3]) == 0) *(mng_uint32*) pScanline = 0; /* set all components = 0 */ else { if (s == 255) { pScanline[0] = 255; pScanline[1] = pDataline[2]; pScanline[2] = pDataline[1]; pScanline[3] = pDataline[0]; } else { pScanline[0] = (mng_uint8)s; #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[i+1] = DIV255B8(s * pDataline[2-i]); } } #else pScanline[1] = DIV255B8(s * pDataline[2]); pScanline[2] = DIV255B8(s * pDataline[1]); pScanline[3] = DIV255B8(s * pDataline[0]); #endif } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ if ((s = pDataline[6]) != 0) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if (s == 255) { /* plain copy it */ pScanline[0] = 255; pScanline[1] = pDataline[4]; pScanline[2] = pDataline[2]; pScanline[3] = pDataline[0]; } else { /* now blend (premultiplied) */ t = 255 - s; pScanline[0] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[0]))); #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[i+1] = DIV255B8(s * pDataline[4-i-i] + t * pScanline[i+1]); } } #else pScanline[1] = DIV255B8(s * pDataline[4] + t * pScanline[1]); pScanline[2] = DIV255B8(s * pDataline[2] + t * pScanline[2]); pScanline[3] = DIV255B8(s * pDataline[0] + t * pScanline[3]); #endif } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { if ((s = pDataline[3]) != 0) /* any opacity at all ? */ { /* fully opaque ? */ if (s == 255) { /* then simply copy the values */ pScanline[0] = 255; pScanline[1] = pDataline[2]; pScanline[2] = pDataline[1]; pScanline[3] = pDataline[0]; } else { /* now blend (premultiplied) */ t = 255 - s; pScanline[0] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[0]))); #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[i+1] = DIV255B8(s * pDataline[2-i] + t * pScanline[i+1]); } } #else pScanline[1] = DIV255B8(s * pDataline[2] + t * pScanline[1]); pScanline[2] = DIV255B8(s * pDataline[1] + t * pScanline[2]); pScanline[3] = DIV255B8(s * pDataline[0] + t * pScanline[3]); #endif } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8_PM, MNG_LC_END); #endif return MNG_NOERROR; } #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ mng_retcode mng_display_abgr8_pm (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint32 s, t; mng_uint8 iBps; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8_PM, MNG_LC_START); #endif iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ if ((s = pDataline[6]) == 0) *(mng_uint32*) pScanline = 0; /* set all components = 0 */ else { if (s == 255) { pScanline[0] = 255; pScanline[1] = pDataline[4]; pScanline[2] = pDataline[2]; pScanline[3] = pDataline[0]; } else { pScanline[0] = (mng_uint8)s; #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[i+1] = DIV255B8(s * pDataline[4-i-i]); } } #else pScanline[1] = DIV255B8(s * pDataline[4]); pScanline[2] = DIV255B8(s * pDataline[2]); pScanline[3] = DIV255B8(s * pDataline[0]); #endif } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values and premultiply */ if ((s = pDataline[3]) == 0) *(mng_uint32*) pScanline = 0; /* set all components = 0 */ else { if (s == 255) { pScanline[0] = 255; pScanline[1] = pDataline[2]; pScanline[2] = pDataline[1]; pScanline[3] = pDataline[0]; } else { pScanline[0] = (mng_uint8)s; #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[i+1] = DIV255B8(s * pDataline[2-i]); } } #else pScanline[1] = DIV255B8(s * pDataline[2]); pScanline[2] = DIV255B8(s * pDataline[1]); pScanline[3] = DIV255B8(s * pDataline[0]); #endif } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ if ((s = pDataline[6]) != 0) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if (s == 255) { /* plain copy it */ pScanline[0] = 255; pScanline[1] = pDataline[4]; pScanline[2] = pDataline[2]; pScanline[3] = pDataline[0]; } else { /* now blend (premultiplied) */ t = 255 - s; pScanline[0] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[0]))); #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[i+1] = DIV255B8(s * pDataline[4-i-i] + t * pScanline[i+1]); } } #else pScanline[1] = DIV255B8(s * pDataline[4] + t * pScanline[1]); pScanline[2] = DIV255B8(s * pDataline[2] + t * pScanline[2]); pScanline[3] = DIV255B8(s * pDataline[0] + t * pScanline[3]); #endif } } pScanline += (pData->iColinc << 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { if ((s = pDataline[3]) != 0) /* any opacity at all ? */ { /* fully opaque ? */ if (s == 255) { /* then simply copy the values */ pScanline[0] = 255; pScanline[1] = pDataline[2]; pScanline[2] = pDataline[1]; pScanline[3] = pDataline[0]; } else { /* now blend (premultiplied) */ t = 255 - s; pScanline[0] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[0]))); #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[i+1] = DIV255B8(s * pDataline[2-i] + t * pScanline[i+1]); } } #else pScanline[1] = DIV255B8(s * pDataline[2] + t * pScanline[1]); pScanline[2] = DIV255B8(s * pDataline[1] + t * pScanline[2]); pScanline[3] = DIV255B8(s * pDataline[0] + t * pScanline[3]); #endif } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8_PM, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ #else /* MNG_NO_16BIT_SUPPORT */ mng_retcode mng_display_abgr8_pm (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint32 s, t; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8_PM, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); pDataline = pData->pRGBArow; /* address source row */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values and premultiply */ if ((s = pDataline[3]) == 0) *(mng_uint32*) pScanline = 0; /* set all components = 0 */ else { if (s == 255) { pScanline[0] = 255; pScanline[1] = pDataline[2]; pScanline[2] = pDataline[1]; pScanline[3] = pDataline[0]; } else { pScanline[0] = (mng_uint8)s; #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[i+1] = DIV255B8(s * pDataline[2-i]); } } #else pScanline[1] = DIV255B8(s * pDataline[2]); pScanline[2] = DIV255B8(s * pDataline[1]); pScanline[3] = DIV255B8(s * pDataline[0]); #endif } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } else { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { if ((s = pDataline[3]) != 0) /* any opacity at all ? */ { /* fully opaque ? */ if (s == 255) { /* then simply copy the values */ pScanline[0] = 255; pScanline[1] = pDataline[2]; pScanline[2] = pDataline[1]; pScanline[3] = pDataline[0]; } else { /* now blend (premultiplied) */ t = 255 - s; pScanline[0] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[0]))); #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV { int i; for (i=2; i >= 0; i--) { pScanline[i+1] = DIV255B8(s * pDataline[2-i] + t * pScanline[i+1]); } } #else pScanline[1] = DIV255B8(s * pDataline[2] + t * pScanline[1]); pScanline[2] = DIV255B8(s * pDataline[1] + t * pScanline[2]); pScanline[3] = DIV255B8(s * pDataline[0] + t * pScanline[3]); #endif } } pScanline += (pData->iColinc << 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8_PM, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_16BIT_SUPPORT */ #endif /* MNG_SKIPCANVAS_ABGR8_PM */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_BGR565 #ifndef MNG_NO_16BIT_SUPPORT #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE mng_retcode mng_display_bgr565 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint16 iA16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint8 iA8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); pDataline = pData->pRGBArow; /* address source row */ if (pData->bIsRGBA16) /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); else pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ( (*(pDataline+2)>>5) ) ); *pScanline = (mng_uint8)( ( (*(pDataline+4)) >>3) | ( (*(pDataline+2)&0xFC) << 3) ); pScanline += (pData->iColinc * 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ( (*(pDataline+1)>>5 ) ) ); *pScanline = (mng_uint8)( ( *(pDataline+2) >>3 ) | ( (*(pDataline+1)&0xFC ) << 3) ); pScanline += (pData->iColinc * 2); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA16 = mng_get_uint16 (pDataline+6); if (iA16) /* any opacity at all ? */ { if (iA16 == 0xFFFF) /* fully opaque ? */ { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( (*(pDataline))&0xF8 ) | (mng_uint8)( (*(pDataline+2)>>5 ) ); *pScanline = (mng_uint8)( (*(pDataline+4)) >>3) | (mng_uint8)( (*(pDataline+2)&0xFC) << 3); } else { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGb16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); iBGr16 = (mng_uint16)( (*(pScanline )) << 3 ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); /* and return the composed values */ *(pScanline+1) = (mng_uint8) ( ( (iFGr16 >> 8)&0xF8 ) | ( (mng_uint8)(iFGg16>>8) >> 5) ); *pScanline = (mng_uint8) ( ( (iFGb16>>11) ) | (((mng_uint8)(iFGg16>>8)&0xFC) << 3) ); } } pScanline += (pData->iColinc * 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline)) &0xF8 ) | (*(pDataline+1) >>5 ) ); *pScanline = (mng_uint8)( ( ((*(pDataline+2))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); } else { /* do alpha composing */ mng_uint8 iRed, iGreen, iBlue; iRed = (mng_uint8) ( *(pScanline+1) & 0xF8 ); iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0)>>3 ) ); iBlue = (mng_uint8) ( (*pScanline << 3) ); MNG_COMPOSE8 (iRed, *pDataline, iA8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+2), iA8, iBlue ); *(pScanline+1) = (mng_uint8) ( ( iRed & 0xF8 ) | (iGreen>>5) ); *pScanline = (mng_uint8) ( ( iBlue >> 3 ) | ( (iGreen & 0xFC) << 3) ); } } pScanline += (pData->iColinc * 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565, MNG_LC_END); #endif return MNG_NOERROR; } #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ mng_retcode mng_display_bgr565 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint16 iA16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint8 iA8; mng_uint8 iBps; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565, MNG_LC_START); #endif iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); pDataline = pData->pRGBArow; /* address source row */ /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); if (pData->bIsOpaque) /* forget about transparency ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ( (*(pDataline+iBps)>>5) ) ); *pScanline = (mng_uint8)( ( (*(pDataline+2*iBps)) >>3) | ( (*(pDataline+iBps)&0xFC) << 3) ); pScanline += (pData->iColinc * 2); pDataline += 4*iBps; } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA16 = mng_get_uint16 (pDataline+6); if (iA16) /* any opacity at all ? */ { if (iA16 == 0xFFFF) /* fully opaque ? */ { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( (*(pDataline))&0xF8 ) | (mng_uint8)( (*(pDataline+2)>>5 ) ); *pScanline = (mng_uint8)( (*(pDataline+4)) >>3) | (mng_uint8)( (*(pDataline+2)&0xFC) << 3); } else { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGb16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); iBGr16 = (mng_uint16)( (*(pScanline )) << 3 ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); /* and return the composed values */ *(pScanline+1) = (mng_uint8) ( ( (iFGr16 >> 8)&0xF8 ) | ( (mng_uint8)(iFGg16>>8) >> 5) ); *pScanline = (mng_uint8) ( ( (iFGb16>>11) ) | (((mng_uint8)(iFGg16>>8)&0xFC) << 3) ); } } pScanline += (pData->iColinc * 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline)) &0xF8 ) | (*(pDataline+1) >>5 ) ); *pScanline = (mng_uint8)( ( ((*(pDataline+2))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); } else { /* do alpha composing */ mng_uint8 iRed, iGreen, iBlue; iRed = (mng_uint8) ( *(pScanline+1) & 0xF8 ); iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0)>>3 ) ); iBlue = (mng_uint8) ( (*pScanline << 3) ); MNG_COMPOSE8 (iRed, *pDataline, iA8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+2), iA8, iBlue ); *(pScanline+1) = (mng_uint8) ( ( iRed & 0xF8 ) | (iGreen>>5) ); *pScanline = (mng_uint8) ( ( iBlue >> 3 ) | ( (iGreen & 0xFC) << 3) ); } } pScanline += (pData->iColinc * 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ #else /* MNG_NO_16BIT_SUPPORT */ mng_retcode mng_display_bgr565 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iA8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); pDataline = pData->pRGBArow; /* address source row */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ( (*(pDataline+1)>>5 ) ) ); *pScanline = (mng_uint8)( ( *(pDataline+2) >>3 ) | ( (*(pDataline+1)&0xFC ) << 3) ); pScanline += (pData->iColinc * 2); pDataline += 4; } } } else { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline)) &0xF8 ) | (*(pDataline+1) >>5 ) ); *pScanline = (mng_uint8)( ( ((*(pDataline+2))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); } else { /* do alpha composing */ mng_uint8 iRed, iGreen, iBlue; iRed = (mng_uint8) ( *(pScanline+1) & 0xF8 ); iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0)>>3 ) ); iBlue = (mng_uint8) ( (*pScanline << 3) ); MNG_COMPOSE8 (iRed, *pDataline, iA8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+2), iA8, iBlue ); *(pScanline+1) = (mng_uint8) ( ( iRed & 0xF8 ) | (iGreen>>5) ); *pScanline = (mng_uint8) ( ( iBlue >> 3 ) | ( (iGreen & 0xFC) << 3) ); } } pScanline += (pData->iColinc * 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_16BIT_SUPPORT */ #endif /* MNG_SKIPCANVAS_BGR565 */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_RGB565 #ifndef MNG_NO_16BIT_SUPPORT #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE mng_retcode mng_display_rgb565 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint16 iA16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint8 iA8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB565, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); pDataline = pData->pRGBArow; /* address source row */ if (pData->bIsRGBA16) /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); else pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( ( ( *(pDataline+4)) & 0xF8) | (*(pDataline+2) >> 5 ) ); *pScanline = (mng_uint8)( ( ( *(pDataline )) >> 3 ) | ((*(pDataline+2) & 0xFC) << 3) ); pScanline += (pData->iColinc * 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2)) & 0xF8) | (*(pDataline+1) >> 5 ) ); *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+1) & 0xFC) << 3) ); pScanline += (pData->iColinc * 2); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA16 = mng_get_uint16 (pDataline+6); if (iA16) /* any opacity at all ? */ { if (iA16 == 0xFFFF) /* fully opaque ? */ { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline+4)) & 0xF8) | (*(pDataline+2)>>5) ); *pScanline = (mng_uint8)( ( (*(pDataline )) >> 3 ) | ((*(pDataline+2)&0xFC) << 3) ); } else { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGr16 = (mng_uint8)( *(pScanline+1) & 0xF8 ); iBGg16 = (mng_uint8)( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0) >> 3 ) ); iBGb16 = (mng_uint8)( *(pScanline ) << 3 ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); /* and return the composed values */ *(pScanline+1) = (mng_uint8)( (mng_uint8)((iFGb16 >> 8) &0xF8) | ( (mng_uint8)(iFGg16 >> 8) >> 5 ) ); *pScanline = (mng_uint8)( (mng_uint8) (iFGr16 >>11) | ( ( (mng_uint8)(iFGg16 >> 8) & 0xFC) << 3) ); } } pScanline += (pData->iColinc * 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2)) & 0xF8) | ( *(pDataline+1) >> 5 ) ); *pScanline = (mng_uint8)( ( (*(pDataline )) >> 3 ) | ( (*(pDataline+1) & 0xFC) << 3 ) ); } else { /* do alpha composing */ mng_uint8 iRed, iGreen, iBlue; iRed = (mng_uint8)( *(pScanline+1) & 0xF8); iGreen = (mng_uint8)( ( *(pScanline+1) << 5 ) | ( ( (*pScanline)&0xE0)>>3 ) ); iBlue = (mng_uint8)( *(pScanline ) << 3 ); MNG_COMPOSE8 (iRed, *(pDataline+2), iA8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+0), iA8, iBlue ); *(pScanline+1) = (mng_uint8)( ( iRed & 0xF8) | ( iGreen >> 5 ) ); *pScanline = (mng_uint8)( (iBlue >> 3 ) | ( (iGreen & 0xFC) << 3) ); } } pScanline += (pData->iColinc * 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB565, MNG_LC_END); #endif return MNG_NOERROR; } #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ mng_retcode mng_display_rgb565 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint16 iA16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint8 iA8; mng_uint8 iBps; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB565, MNG_LC_START); #endif iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); pDataline = pData->pRGBArow; /* address source row */ /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); if (pData->bIsOpaque) /* forget about transparency ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( ( ( *(pDataline+2*iBps)) & 0xF8) | (*(pDataline+iBps) >> 5 ) ); *pScanline = (mng_uint8)( ( ( *(pDataline )) >> 3 ) | ((*(pDataline+iBps) & 0xFC) << 3) ); pScanline += (pData->iColinc * 2); pDataline += 4*iBps; } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA16 = mng_get_uint16 (pDataline+6); if (iA16) /* any opacity at all ? */ { if (iA16 == 0xFFFF) /* fully opaque ? */ { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline+4)) & 0xF8) | (*(pDataline+2)>>5) ); *pScanline = (mng_uint8)( ( (*(pDataline )) >> 3 ) | ((*(pDataline+2)&0xFC) << 3) ); } else { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGr16 = (mng_uint8)( *(pScanline+1) & 0xF8 ); iBGg16 = (mng_uint8)( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0) >> 3 ) ); iBGb16 = (mng_uint8)( *(pScanline ) << 3 ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); /* and return the composed values */ *(pScanline+1) = (mng_uint8)( (mng_uint8)((iFGb16 >> 8) &0xF8) | ( (mng_uint8)(iFGg16 >> 8) >> 5 ) ); *pScanline = (mng_uint8)( (mng_uint8) (iFGr16 >>11) | ( ( (mng_uint8)(iFGg16 >> 8) & 0xFC) << 3) ); } } pScanline += (pData->iColinc * 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2)) & 0xF8) | ( *(pDataline+1) >> 5 ) ); *pScanline = (mng_uint8)( ( (*(pDataline )) >> 3 ) | ( (*(pDataline+1) & 0xFC) << 3 ) ); } else { /* do alpha composing */ mng_uint8 iRed, iGreen, iBlue; iRed = (mng_uint8)( *(pScanline+1) & 0xF8); iGreen = (mng_uint8)( ( *(pScanline+1) << 5 ) | ( ( (*pScanline)&0xE0)>>3 ) ); iBlue = (mng_uint8)( *(pScanline ) << 3 ); MNG_COMPOSE8 (iRed, *(pDataline+2), iA8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+0), iA8, iBlue ); *(pScanline+1) = (mng_uint8)( ( iRed & 0xF8) | ( iGreen >> 5 ) ); *pScanline = (mng_uint8)( (iBlue >> 3 ) | ( (iGreen & 0xFC) << 3) ); } } pScanline += (pData->iColinc * 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB565, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ #else /* MNG_NO_16BIT_SUPPORT */ mng_retcode mng_display_rgb565 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iA8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB565, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); pDataline = pData->pRGBArow; /* address source row */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2)) & 0xF8) | (*(pDataline+1) >> 5 ) ); *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+1) & 0xFC) << 3) ); pScanline += (pData->iColinc * 2); pDataline += 4; } } } else { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2)) & 0xF8) | ( *(pDataline+1) >> 5 ) ); *pScanline = (mng_uint8)( ( (*(pDataline )) >> 3 ) | ( (*(pDataline+1) & 0xFC) << 3 ) ); } else { /* do alpha composing */ mng_uint8 iRed, iGreen, iBlue; iRed = (mng_uint8)( *(pScanline+1) & 0xF8); iGreen = (mng_uint8)( ( *(pScanline+1) << 5 ) | ( ( (*pScanline)&0xE0)>>3 ) ); iBlue = (mng_uint8)( *(pScanline ) << 3 ); MNG_COMPOSE8 (iRed, *(pDataline+2), iA8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+0), iA8, iBlue ); *(pScanline+1) = (mng_uint8)( ( iRed & 0xF8) | ( iGreen >> 5 ) ); *pScanline = (mng_uint8)( (iBlue >> 3 ) | ( (iGreen & 0xFC) << 3) ); } } pScanline += (pData->iColinc * 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB565, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_16BIT_SUPPORT */ #endif /* MNG_SKIPCANVAS_RGB565 */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_BGRA565 #ifndef MNG_NO_16BIT_SUPPORT #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE mng_retcode mng_display_bgra565 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint16 iFGa16, iBGa16, iCa16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint16 iCr16, iCg16, iCb16; mng_uint8 iCr8, iCg8, iCb8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA565, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl * 3); pDataline = pData->pRGBArow; /* address source row */ if (pData->bIsRGBA16) /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); else pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ( (*(pDataline+2)>>5) ) ); *pScanline = (mng_uint8)( ( (*(pDataline+4)) >>3) | ( (*(pDataline+2)&0xFC) << 3) ); *(pScanline+2) = *(pDataline+6); pScanline += (pData->iColinc * 3); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ( (*(pDataline+1)>>5 ) ) ); *pScanline = (mng_uint8)( ( *(pDataline+2) >>3 ) | ( (*(pDataline+1)&0xFC ) << 3) ); *(pScanline+2) = *(pDataline+3); pScanline += (pData->iColinc * 3); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ iFGa16 = mng_get_uint16 (pDataline+6); iBGa16 = (mng_uint16)(*(pScanline+2)); iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; if (iFGa16) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) { /* plain copy it */ *(pScanline+1) = (mng_uint8)( (*(pDataline))&0xF8 ) | (mng_uint8)( (*(pDataline+2)>>5 ) ); *pScanline = (mng_uint8)( (*(pDataline+4)) >>3) | (mng_uint8)( (*(pDataline+2)&0xFC) << 3); *(pScanline+2) = *(pDataline+6); } else { if (iBGa16 == 0xFFFF) /* background fully opaque ? */ { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGb16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); iBGr16 = (mng_uint16)( (*(pScanline )) << 3 ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16); /* and return the composed values */ *(pScanline+1) = (mng_uint8) ( ( (iFGr16 >> 8)&0xF8 ) | ( (mng_uint8)(iFGg16>>8) >> 5) ); *pScanline = (mng_uint8) ( ( (iFGb16>>11) ) | (((mng_uint8)(iFGg16>>8)&0xFC) << 3) ); } else { /* scale background up */ iBGb16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); iBGr16 = (mng_uint16)( (*(pScanline )) << 3 ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* let's blend */ MNG_BLEND16 (mng_get_uint16 (pDataline ), mng_get_uint16 (pDataline+2), mng_get_uint16 (pDataline+4), iFGa16, iBGr16, iBGg16, iBGb16, iBGa16, iCr16, iCg16, iCb16, iCa16); /* and return the composed values */ *(pScanline+1) = (mng_uint8) ( ( (iCr16 >> 8) & 0xF8 ) | ( (mng_uint8)(iCg16 >> 8) >> 5 ) ); *pScanline = (mng_uint8) ( ( (iCb16 >> 11) ) | (((mng_uint8)(iCg16 >> 8) & 0xFC) << 3) ); *(pScanline+2) = (mng_uint8)(iCa16 >> 8); } } } pScanline += (pData->iColinc * 3); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *(pScanline+2); if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline)) &0xF8 ) | (*(pDataline+1) >>5 ) ); *pScanline = (mng_uint8)( ( ((*(pDataline+2))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); *(pScanline+2) = *(pDataline+3); } else { mng_uint8 iRed, iGreen, iBlue; iRed = (mng_uint8) ( *(pScanline+1) & 0xF8 ); iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0)>>3 ) ); iBlue = (mng_uint8) ( (*pScanline << 3) ); if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do alpha composing */ MNG_COMPOSE8 (iRed, *pDataline, iFGa8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iFGa8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+2), iFGa8, iBlue ); /* alpha remains fully opaque !!! */ *(pScanline+1) = (mng_uint8) ( ( iRed & 0xF8 ) | (iGreen>>5) ); *pScanline = (mng_uint8) ( ( iBlue >> 3 ) | ( (iGreen & 0xFC) << 3) ); } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, iRed , iGreen , iBlue , iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = (mng_uint8) ( ( iCb8 >> 3 ) | ( (iCg8 & 0xFC) << 3) ); *(pScanline+1) = (mng_uint8) ( ( iCr8 & 0xF8 ) | (iCg8>>5) ); *(pScanline+2) = (mng_uint8) iCa8; } } } pScanline += (pData->iColinc *3); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA565, MNG_LC_END); #endif return MNG_NOERROR; } #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ mng_retcode mng_display_bgra565 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint16 iFGa16, iBGa16, iCa16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint16 iCr16, iCg16, iCb16; mng_uint8 iCr8, iCg8, iCb8; mng_uint8 iBps; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA565, MNG_LC_START); #endif iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl * 3); pDataline = pData->pRGBArow; /* address source row */ /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); if (pData->bIsOpaque) /* forget about transparency ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ( (*(pDataline+iBps)>>5) ) ); *pScanline = (mng_uint8)( ( (*(pDataline+2*iBps)) >>3) | ( (*(pDataline+iBps)&0xFC) << 3) ); *(pScanline+2) = *(pDataline+3*iBps); pScanline += (pData->iColinc * 3); pDataline += 4*iBps; } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ iFGa16 = mng_get_uint16 (pDataline+6); iBGa16 = (mng_uint16)(*(pScanline+2)); iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; if (iFGa16) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) { /* plain copy it */ *(pScanline+1) = (mng_uint8)( (*(pDataline))&0xF8 ) | (mng_uint8)( (*(pDataline+2)>>5 ) ); *pScanline = (mng_uint8)( (*(pDataline+4)) >>3) | (mng_uint8)( (*(pDataline+2)&0xFC) << 3); *(pScanline+2) = *(pDataline+6); } else { if (iBGa16 == 0xFFFF) /* background fully opaque ? */ { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGb16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); iBGr16 = (mng_uint16)( (*(pScanline )) << 3 ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16); /* and return the composed values */ *(pScanline+1) = (mng_uint8) ( ( (iFGr16 >> 8)&0xF8 ) | ( (mng_uint8)(iFGg16>>8) >> 5) ); *pScanline = (mng_uint8) ( ( (iFGb16>>11) ) | (((mng_uint8)(iFGg16>>8)&0xFC) << 3) ); } else { /* scale background up */ iBGb16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); iBGr16 = (mng_uint16)( (*(pScanline )) << 3 ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* let's blend */ MNG_BLEND16 (mng_get_uint16 (pDataline ), mng_get_uint16 (pDataline+2), mng_get_uint16 (pDataline+4), iFGa16, iBGr16, iBGg16, iBGb16, iBGa16, iCr16, iCg16, iCb16, iCa16); /* and return the composed values */ *(pScanline+1) = (mng_uint8) ( ( (iCr16 >> 8) & 0xF8 ) | ( (mng_uint8)(iCg16 >> 8) >> 5 ) ); *pScanline = (mng_uint8) ( ( (iCb16 >> 11) ) | (((mng_uint8)(iCg16 >> 8) & 0xFC) << 3) ); *(pScanline+2) = (mng_uint8)(iCa16 >> 8); } } } pScanline += (pData->iColinc * 3); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *(pScanline+2); if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline)) &0xF8 ) | (*(pDataline+1) >>5 ) ); *pScanline = (mng_uint8)( ( ((*(pDataline+2))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); *(pScanline+2) = *(pDataline+3); } else { mng_uint8 iRed, iGreen, iBlue; iRed = (mng_uint8) ( *(pScanline+1) & 0xF8 ); iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0)>>3 ) ); iBlue = (mng_uint8) ( (*pScanline << 3) ); if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do alpha composing */ MNG_COMPOSE8 (iRed, *pDataline, iFGa8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iFGa8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+2), iFGa8, iBlue ); /* alpha remains fully opaque !!! */ *(pScanline+1) = (mng_uint8) ( ( iRed & 0xF8 ) | (iGreen>>5) ); *pScanline = (mng_uint8) ( ( iBlue >> 3 ) | ( (iGreen & 0xFC) << 3) ); } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, iRed , iGreen , iBlue , iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = (mng_uint8) ( ( iCb8 >> 3 ) | ( (iCg8 & 0xFC) << 3) ); *(pScanline+1) = (mng_uint8) ( ( iCr8 & 0xF8 ) | (iCg8>>5) ); *(pScanline+2) = (mng_uint8) iCa8; } } } pScanline += (pData->iColinc *3); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA565, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ #else /* MNG_NO_16BIT_SUPPORT */ mng_retcode mng_display_bgra565 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint8 iCr8, iCg8, iCb8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA565, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl * 3); pDataline = pData->pRGBArow; /* address source row */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ( (*(pDataline+1)>>5 ) ) ); *pScanline = (mng_uint8)( ( *(pDataline+2) >>3 ) | ( (*(pDataline+1)&0xFC ) << 3) ); *(pScanline+2) = *(pDataline+3); pScanline += (pData->iColinc * 3); pDataline += 4; } } } else { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *(pScanline+2); if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline)) &0xF8 ) | (*(pDataline+1) >>5 ) ); *pScanline = (mng_uint8)( ( ((*(pDataline+2))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); *(pScanline+2) = *(pDataline+3); } else { mng_uint8 iRed, iGreen, iBlue; iRed = (mng_uint8) ( *(pScanline+1) & 0xF8 ); iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0)>>3 ) ); iBlue = (mng_uint8) ( (*pScanline << 3) ); if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do alpha composing */ MNG_COMPOSE8 (iRed, *pDataline, iFGa8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iFGa8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+2), iFGa8, iBlue ); /* alpha remains fully opaque !!! */ *(pScanline+1) = (mng_uint8) ( ( iRed & 0xF8 ) | (iGreen>>5) ); *pScanline = (mng_uint8) ( ( iBlue >> 3 ) | ( (iGreen & 0xFC) << 3) ); } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, iRed , iGreen , iBlue , iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = (mng_uint8) ( ( iCb8 >> 3 ) | ( (iCg8 & 0xFC) << 3) ); *(pScanline+1) = (mng_uint8) ( ( iCr8 & 0xF8 ) | (iCg8>>5) ); *(pScanline+2) = (mng_uint8) iCa8; } } } pScanline += (pData->iColinc *3); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA565, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_16BIT_SUPPORT */ #endif /* MNG_SKIPCANVAS_BGRA565 */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_RGBA565 #ifndef MNG_NO_16BIT_SUPPORT #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE mng_retcode mng_display_rgba565 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint16 iFGa16, iBGa16, iCa16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint16 iCr16, iCg16, iCb16; mng_uint8 iCr8, iCg8, iCb8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA565, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl * 3); pDataline = pData->pRGBArow; /* address source row */ if (pData->bIsRGBA16) /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); else pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline+4))&0xF8 ) | ( (*(pDataline+2)>>5) ) ); *pScanline = (mng_uint8)( ( (*(pDataline)) >>3) | ( (*(pDataline+2)&0xFC) << 3) ); *(pScanline+2) = *(pDataline+6); pScanline += (pData->iColinc * 3); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2))&0xF8 ) | ( (*(pDataline+1)>>5 ) ) ); *pScanline = (mng_uint8)( ( *(pDataline) >>3 ) | ( (*(pDataline+1)&0xFC ) << 3) ); *(pScanline+2) = *(pDataline+3); pScanline += (pData->iColinc * 3); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ iFGa16 = mng_get_uint16 (pDataline+6); iBGa16 = (mng_uint16)(*(pScanline+2)); iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; if (iFGa16) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) { /* plain copy it */ *(pScanline+1) = (mng_uint8)( (*(pDataline+4))&0xF8 ) | (mng_uint8)( (*(pDataline+2)>>5 ) ); *pScanline = (mng_uint8)( (*(pDataline)) >>3) | (mng_uint8)( (*(pDataline+2)&0xFC) << 3); *(pScanline+2) = *(pDataline+6); } else { if (iBGa16 == 0xFFFF) /* background fully opaque ? */ { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGr16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); iBGb16 = (mng_uint16)( (*(pScanline )) << 3 ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16); /* and return the composed values */ *(pScanline+1) = (mng_uint8) ( ( (iFGb16 >> 8)&0xF8 ) | ( (mng_uint8)(iFGg16>>8) >> 5) ); *pScanline = (mng_uint8) ( ( (iFGr16>>11) ) | (((mng_uint8)(iFGg16>>8)&0xFC) << 3) ); } else { /* scale background up */ iBGr16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); iBGb16 = (mng_uint16)( (*(pScanline )) << 3 ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* let's blend */ MNG_BLEND16 (mng_get_uint16 (pDataline ), mng_get_uint16 (pDataline+2), mng_get_uint16 (pDataline+4), iFGa16, iBGr16, iBGg16, iBGb16, iBGa16, iCr16, iCg16, iCb16, iCa16); /* and return the composed values */ *(pScanline+1) = (mng_uint8) ( ( (iCb16 >> 8) & 0xF8 ) | ( (mng_uint8)(iCg16 >> 8) >> 5 ) ); *pScanline = (mng_uint8) ( ( (iCr16 >> 11) ) | (((mng_uint8)(iCg16 >> 8) & 0xFC) << 3) ); *(pScanline+2) = (mng_uint8)(iCa16 >> 8); } } } pScanline += (pData->iColinc * 3); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *(pScanline+2); if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2)) &0xF8 ) | (*(pDataline+1) >>5 ) ); *pScanline = (mng_uint8)( ( ((*(pDataline))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); *(pScanline+2) = *(pDataline+3); } else { mng_uint8 iRed, iGreen, iBlue; iBlue = (mng_uint8) ( *(pScanline+1) & 0xF8 ); iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0)>>3 ) ); iRed = (mng_uint8) ( (*pScanline << 3) ); if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do alpha composing */ MNG_COMPOSE8 (iRed, *pDataline, iFGa8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iFGa8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+2), iFGa8, iBlue ); /* alpha remains fully opaque !!! */ *(pScanline+1) = (mng_uint8) ( ( iBlue & 0xF8 ) | (iGreen>>5) ); *pScanline = (mng_uint8) ( ( iRed >> 3 ) | ( (iGreen & 0xFC) << 3) ); } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, iRed , iGreen , iBlue , iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = (mng_uint8) ( ( iCr8 >> 3 ) | ( (iCg8 & 0xFC) << 3) ); *(pScanline+1) = (mng_uint8) ( ( iCb8 & 0xF8 ) | (iCg8>>5) ); *(pScanline+2) = (mng_uint8) iCa8; } } } pScanline += (pData->iColinc *3); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA565, MNG_LC_END); #endif return MNG_NOERROR; } #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ mng_retcode mng_display_rgba565 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint16 iFGa16, iBGa16, iCa16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint16 iCr16, iCg16, iCb16; mng_uint8 iCr8, iCg8, iCb8; mng_uint8 iBps; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA565, MNG_LC_START); #endif iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl * 3); pDataline = pData->pRGBArow; /* address source row */ /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); if (pData->bIsOpaque) /* forget about transparency ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2*iBps))&0xF8 ) | ( (*(pDataline+iBps)>>5) ) ); *pScanline = (mng_uint8)( ( (*(pDataline)) >>3) | ( (*(pDataline+iBps)&0xFC) << 3) ); *(pScanline+2) = *(pDataline+3*iBps); pScanline += (pData->iColinc * 3); pDataline += 4*iBps; } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* get alpha values */ iFGa16 = mng_get_uint16 (pDataline+6); iBGa16 = (mng_uint16)(*(pScanline+2)); iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; if (iFGa16) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) { /* plain copy it */ *(pScanline+1) = (mng_uint8)( (*(pDataline+4))&0xF8 ) | (mng_uint8)( (*(pDataline+2)>>5 ) ); *pScanline = (mng_uint8)( (*(pDataline)) >>3) | (mng_uint8)( (*(pDataline+2)&0xFC) << 3); *(pScanline+2) = *(pDataline+6); } else { if (iBGa16 == 0xFFFF) /* background fully opaque ? */ { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGr16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); iBGb16 = (mng_uint16)( (*(pScanline )) << 3 ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16); /* and return the composed values */ *(pScanline+1) = (mng_uint8) ( ( (iFGb16 >> 8)&0xF8 ) | ( (mng_uint8)(iFGg16>>8) >> 5) ); *pScanline = (mng_uint8) ( ( (iFGr16>>11) ) | (((mng_uint8)(iFGg16>>8)&0xFC) << 3) ); } else { /* scale background up */ iBGr16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); iBGb16 = (mng_uint16)( (*(pScanline )) << 3 ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* let's blend */ MNG_BLEND16 (mng_get_uint16 (pDataline ), mng_get_uint16 (pDataline+2), mng_get_uint16 (pDataline+4), iFGa16, iBGr16, iBGg16, iBGb16, iBGa16, iCr16, iCg16, iCb16, iCa16); /* and return the composed values */ *(pScanline+1) = (mng_uint8) ( ( (iCb16 >> 8) & 0xF8 ) | ( (mng_uint8)(iCg16 >> 8) >> 5 ) ); *pScanline = (mng_uint8) ( ( (iCr16 >> 11) ) | (((mng_uint8)(iCg16 >> 8) & 0xFC) << 3) ); *(pScanline+2) = (mng_uint8)(iCa16 >> 8); } } } pScanline += (pData->iColinc * 3); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *(pScanline+2); if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2)) &0xF8 ) | (*(pDataline+1) >>5 ) ); *pScanline = (mng_uint8)( ( ((*(pDataline))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); *(pScanline+2) = *(pDataline+3); } else { mng_uint8 iRed, iGreen, iBlue; iBlue = (mng_uint8) ( *(pScanline+1) & 0xF8 ); iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0)>>3 ) ); iRed = (mng_uint8) ( (*pScanline << 3) ); if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do alpha composing */ MNG_COMPOSE8 (iRed, *pDataline, iFGa8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iFGa8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+2), iFGa8, iBlue ); /* alpha remains fully opaque !!! */ *(pScanline+1) = (mng_uint8) ( ( iBlue & 0xF8 ) | (iGreen>>5) ); *pScanline = (mng_uint8) ( ( iRed >> 3 ) | ( (iGreen & 0xFC) << 3) ); } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, iRed , iGreen , iBlue , iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = (mng_uint8) ( ( iCr8 >> 3 ) | ( (iCg8 & 0xFC) << 3) ); *(pScanline+1) = (mng_uint8) ( ( iCb8 & 0xF8 ) | (iCg8>>5) ); *(pScanline+2) = (mng_uint8) iCa8; } } } pScanline += (pData->iColinc *3); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA565, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ #else /* MNG_NO_16BIT_SUPPORT */ mng_retcode mng_display_rgba565 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iFGa8, iBGa8, iCa8; mng_uint8 iCr8, iCg8, iCb8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA565, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl * 3); pDataline = pData->pRGBArow; /* address source row */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2))&0xF8 ) | ( (*(pDataline+1)>>5 ) ) ); *pScanline = (mng_uint8)( ( *(pDataline) >>3 ) | ( (*(pDataline+1)&0xFC ) << 3) ); *(pScanline+2) = *(pDataline+3); pScanline += (pData->iColinc * 3); pDataline += 4; } } } else { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iFGa8 = *(pDataline+3); /* get alpha values */ iBGa8 = *(pScanline+2); if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2)) &0xF8 ) | (*(pDataline+1) >>5 ) ); *pScanline = (mng_uint8)( ( ((*(pDataline))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); *(pScanline+2) = *(pDataline+3); } else { mng_uint8 iRed, iGreen, iBlue; iBlue = (mng_uint8) ( *(pScanline+1) & 0xF8 ); iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0)>>3 ) ); iRed = (mng_uint8) ( (*pScanline << 3) ); if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do alpha composing */ MNG_COMPOSE8 (iRed, *pDataline, iFGa8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iFGa8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+2), iFGa8, iBlue ); /* alpha remains fully opaque !!! */ *(pScanline+1) = (mng_uint8) ( ( iBlue & 0xF8 ) | (iGreen>>5) ); *pScanline = (mng_uint8) ( ( iRed >> 3 ) | ( (iGreen & 0xFC) << 3) ); } else { /* now blend */ MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, iRed , iGreen , iBlue , iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pScanline = (mng_uint8) ( ( iCr8 >> 3 ) | ( (iCg8 & 0xFC) << 3) ); *(pScanline+1) = (mng_uint8) ( ( iCb8 & 0xF8 ) | (iCg8>>5) ); *(pScanline+2) = (mng_uint8) iCa8; } } } pScanline += (pData->iColinc *3); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA565, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_16BIT_SUPPORT */ #endif /* MNG_SKIPCANVAS_RGBA565 */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_BGR565_A8 #ifndef MNG_NO_16BIT_SUPPORT #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE mng_retcode mng_display_bgr565_a8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pAlphaline; mng_uint8p pDataline; mng_int32 iX; mng_uint16 iA16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16, iBGa16; mng_uint16 iCr16, iCg16, iCb16, iCa16; mng_uint8 iA8, iBGa8, iCa8; mng_uint8 iCr8, iCg8, iCb8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565_A8, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); pAlphaline = (mng_uint8p)pData->fGetalphaline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); pAlphaline = pAlphaline + pData->iCol + pData->iDestl; pDataline = pData->pRGBArow; /* address source row */ if (pData->bIsRGBA16) /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); else pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ((*(pDataline+2)>>5) ) ); *pScanline = (mng_uint8)( ( (*(pDataline+4)) >>3) | ((*(pDataline+2)&0xFC) << 3) ); *pAlphaline = (mng_uint8)(*(pDataline+6)); pScanline += (pData->iColinc * 2); pAlphaline += pData->iColinc; pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ((*(pDataline+1)>>5 ) ) ); *pScanline = (mng_uint8)( ( *(pDataline+2) >>3 ) | ((*(pDataline+1)&0xFC ) << 3) ); *pAlphaline = (mng_uint8)(*(pDataline+3)); pScanline += (pData->iColinc * 2); pAlphaline += pData->iColinc; pDataline += 4; } } } else /* Not fully opaque */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA16 = mng_get_uint16 (pDataline+6); iBGa16 = (mng_uint16)(*pAlphaline); iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; if (iA16) /* any opacity at all ? */ { if ((iA16 == 0xFFFF) || (iBGa16 == 0)) /* fully opaque or background fully transparent ? */ { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( (*(pDataline))&0xF8 ) | (mng_uint8)( (*(pDataline+2)>>5 ) ); *pScanline = (mng_uint8)( (*(pDataline+4)) >>3) | (mng_uint8)( (*(pDataline+2)&0xFC) << 3); *pAlphaline = *(pDataline+6); } else { if (iBGa16 == 0xFFFF) /* background fully opaque ? */ { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGb16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); iBGr16 = (mng_uint16)( (*(pScanline )) << 3 ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); /* and return the composed values */ *(pScanline+1) = (mng_uint8) ( ( (iFGr16 >> 8)&0xF8 ) | ( (mng_uint8)(iFGg16>>8) >> 5) ); *pScanline = (mng_uint8) ( ( (iFGb16>>11) ) | (((mng_uint8)(iFGg16>>8)&0xFC) << 3) ); *pAlphaline = (mng_uint8)(iA16>>8); } else /* background is not fully opaque */ { /* scale background up */ iBGb16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); iBGr16 = (mng_uint16)( (*(pScanline )) << 3 ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* let's blend */ MNG_BLEND16 (mng_get_uint16 (pDataline ), mng_get_uint16 (pDataline+2), mng_get_uint16 (pDataline+4), iA16, iBGr16, iBGg16, iBGb16, iBGa16, iCr16, iCg16, iCb16, iCa16); /* and return the composed values */ *(pScanline+1) = (mng_uint8) ( ( (iCr16 >> 8)&0xF8 ) | ( (mng_uint8)(iCg16>>8) >> 5) ); *pScanline = (mng_uint8) ( ( (iCb16>>11) ) | (((mng_uint8)(iCg16>>8)&0xFC) << 3) ); *pAlphaline = (mng_uint8)(iCa16 >> 8); } } } pScanline += (pData->iColinc * 2); pAlphaline += pData->iColinc; pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ iBGa8 = *pAlphaline; if (iA8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iA8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline)) &0xF8 ) | (*(pDataline+1) >>5 ) ); *pScanline = (mng_uint8)( ( ((*(pDataline+2))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); *pAlphaline = *(pDataline+3); } else { if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do alpha composing */ mng_uint8 iRed, iGreen, iBlue; iRed = (mng_uint8) ( *(pScanline+1) & 0xF8 ); iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | (((*pScanline) & 0xE0)>>3 ) ); iBlue = (mng_uint8) ( (*pScanline << 3) ); MNG_COMPOSE8 (iRed, *pDataline, iA8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+2), iA8, iBlue ); *(pScanline+1) = (mng_uint8) ( ( iRed & 0xF8 ) | (iGreen>>5) ); *pScanline = (mng_uint8) ( ( iBlue >> 3 ) | ((iGreen & 0xFC) << 3) ); *pAlphaline = iA8; } else /* background not fully opaque */ { MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iA8, *pScanline, *(pScanline+1), *(pScanline+2), iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *(pScanline+1) = (mng_uint8) ( ( iCr8 & 0xF8 ) | (iCg8>>5) ); *pScanline = (mng_uint8) ( ( iCb8 >> 3 ) | ((iCg8 & 0xFC) << 3) ); *pAlphaline = iCa8; } } } pScanline += (pData->iColinc * 2); pAlphaline += pData->iColinc; pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565_A8, MNG_LC_END); #endif return MNG_NOERROR; } #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ mng_retcode mng_display_bgr565_a8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pAlphaline; mng_uint8p pDataline; mng_int32 iX; mng_uint16 iA16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16, iBGa16; mng_uint16 iCr16, iCg16, iCb16, iCa16; mng_uint8 iA8, iBGa8, iCa8; mng_uint8 iCr8, iCg8, iCb8; mng_uint8 iBps; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565_A8, MNG_LC_START); #endif iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); pAlphaline = (mng_uint8p)pData->fGetalphaline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); pAlphaline = pAlphaline + pData->iCol + pData->iDestl; pDataline = pData->pRGBArow; /* address source row */ /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); if (pData->bIsOpaque) /* forget about transparency ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ((*(pDataline+iBps)>>5) ) ); *pScanline = (mng_uint8)( ( (*(pDataline+2*iBps)) >>3) | ((*(pDataline+iBps)&0xFC) << 3) ); *pAlphaline = (mng_uint8)(*(pDataline+6)); pScanline += (pData->iColinc * 2); pAlphaline += pData->iColinc; pDataline += 8; } } else /* Not fully opaque */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA16 = mng_get_uint16 (pDataline+6); iBGa16 = (mng_uint16)(*pAlphaline); iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; if (iA16) /* any opacity at all ? */ { if ((iA16 == 0xFFFF) || (iBGa16 == 0)) /* fully opaque or background fully transparent ? */ { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( (*(pDataline))&0xF8 ) | (mng_uint8)( (*(pDataline+2)>>5 ) ); *pScanline = (mng_uint8)( (*(pDataline+4)) >>3) | (mng_uint8)( (*(pDataline+2)&0xFC) << 3); *pAlphaline = *(pDataline+6); } else { if (iBGa16 == 0xFFFF) /* background fully opaque ? */ { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGb16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); iBGr16 = (mng_uint16)( (*(pScanline )) << 3 ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); /* and return the composed values */ *(pScanline+1) = (mng_uint8) ( ( (iFGr16 >> 8)&0xF8 ) | ( (mng_uint8)(iFGg16>>8) >> 5) ); *pScanline = (mng_uint8) ( ( (iFGb16>>11) ) | (((mng_uint8)(iFGg16>>8)&0xFC) << 3) ); *pAlphaline = (mng_uint8)(iA16>>8); } else /* background is not fully opaque */ { /* scale background up */ iBGb16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); iBGr16 = (mng_uint16)( (*(pScanline )) << 3 ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* let's blend */ MNG_BLEND16 (mng_get_uint16 (pDataline ), mng_get_uint16 (pDataline+2), mng_get_uint16 (pDataline+4), iA16, iBGr16, iBGg16, iBGb16, iBGa16, iCr16, iCg16, iCb16, iCa16); /* and return the composed values */ *(pScanline+1) = (mng_uint8) ( ( (iCr16 >> 8)&0xF8 ) | ( (mng_uint8)(iCg16>>8) >> 5) ); *pScanline = (mng_uint8) ( ( (iCb16>>11) ) | (((mng_uint8)(iCg16>>8)&0xFC) << 3) ); *pAlphaline = (mng_uint8)(iCa16 >> 8); } } } pScanline += (pData->iColinc * 2); pAlphaline += pData->iColinc; pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ iBGa8 = *pAlphaline; if (iA8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iA8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline)) &0xF8 ) | (*(pDataline+1) >>5 ) ); *pScanline = (mng_uint8)( ( ((*(pDataline+2))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); *pAlphaline = *(pDataline+3); } else { if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do alpha composing */ mng_uint8 iRed, iGreen, iBlue; iRed = (mng_uint8) ( *(pScanline+1) & 0xF8 ); iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | (((*pScanline) & 0xE0)>>3 ) ); iBlue = (mng_uint8) ( (*pScanline << 3) ); MNG_COMPOSE8 (iRed, *pDataline, iA8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+2), iA8, iBlue ); *(pScanline+1) = (mng_uint8) ( ( iRed & 0xF8 ) | (iGreen>>5) ); *pScanline = (mng_uint8) ( ( iBlue >> 3 ) | ((iGreen & 0xFC) << 3) ); *pAlphaline = iA8; } else /* background not fully opaque */ { MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iA8, *pScanline, *(pScanline+1), *(pScanline+2), iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *(pScanline+1) = (mng_uint8) ( ( iCr8 & 0xF8 ) | (iCg8>>5) ); *pScanline = (mng_uint8) ( ( iCb8 >> 3 ) | ((iCg8 & 0xFC) << 3) ); *pAlphaline = iCa8; } } } pScanline += (pData->iColinc * 2); pAlphaline += pData->iColinc; pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565_A8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ #else /* MNG_NO_16BIT_SUPPORT */ mng_retcode mng_display_bgr565_a8 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pAlphaline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iA8, iBGa8, iCa8; mng_uint8 iCr8, iCg8, iCb8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565_A8, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); pAlphaline = (mng_uint8p)pData->fGetalphaline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); pAlphaline = pAlphaline + pData->iCol + pData->iDestl; pDataline = pData->pRGBArow; /* address source row */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ((*(pDataline+1)>>5 ) ) ); *pScanline = (mng_uint8)( ( *(pDataline+2) >>3 ) | ((*(pDataline+1)&0xFC ) << 3) ); *pAlphaline = (mng_uint8)(*(pDataline+3)); pScanline += (pData->iColinc * 2); pAlphaline += pData->iColinc; pDataline += 4; } } } else /* Not fully opaque */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ iBGa8 = *pAlphaline; if (iA8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iA8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ( (*(pDataline)) &0xF8 ) | (*(pDataline+1) >>5 ) ); *pScanline = (mng_uint8)( ( ((*(pDataline+2))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); *pAlphaline = *(pDataline+3); } else { if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do alpha composing */ mng_uint8 iRed, iGreen, iBlue; iRed = (mng_uint8) ( *(pScanline+1) & 0xF8 ); iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | (((*pScanline) & 0xE0)>>3 ) ); iBlue = (mng_uint8) ( (*pScanline << 3) ); MNG_COMPOSE8 (iRed, *pDataline, iA8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+2), iA8, iBlue ); *(pScanline+1) = (mng_uint8) ( ( iRed & 0xF8 ) | (iGreen>>5) ); *pScanline = (mng_uint8) ( ( iBlue >> 3 ) | ((iGreen & 0xFC) << 3) ); *pAlphaline = iA8; } else /* background not fully opaque */ { MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iA8, *pScanline, *(pScanline+1), *(pScanline+2), iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *(pScanline+1) = (mng_uint8) ( ( iCr8 & 0xF8 ) | (iCg8>>5) ); *pScanline = (mng_uint8) ( ( iCb8 >> 3 ) | ((iCg8 & 0xFC) << 3) ); *pAlphaline = iCa8; } } } pScanline += (pData->iColinc * 2); pAlphaline += pData->iColinc; pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565_A8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_16BIT_SUPPORT */ #endif /* MNG_SKIPCANVAS_BGR565_A8 */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_RGB555 #ifndef MNG_NO_16BIT_SUPPORT #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE mng_retcode mng_display_rgb555 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint16 iA16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint8 iA8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB555, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); pDataline = pData->pRGBArow; /* address source row */ if (pData->bIsRGBA16) /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); else pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( ((*(pDataline+4) & 0xF8) >> 1 ) | (*(pDataline+2) >> 6 ) ); *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+2) & 0xF8) << 2 ) ); pScanline += (pData->iColinc * 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *(pScanline+1) = (mng_uint8)( ((*(pDataline+2) & 0xF8) >> 1 ) | (*(pDataline+1) >> 6 ) ); *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+1) & 0xF8) << 2 ) ); pScanline += (pData->iColinc * 2); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA16 = mng_get_uint16 (pDataline+6); if (iA16) /* any opacity at all ? */ { if (iA16 == 0xFFFF) /* fully opaque ? */ { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( ((*(pDataline+4) & 0xF8) >> 1 ) | (*(pDataline+2) >> 6 ) ); *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+2) & 0xF8) << 2 ) ); } else { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGr16 = (mng_uint8)( (*(pScanline+1) & 0xF8) << 1 ); iBGg16 = (mng_uint8)( (*(pScanline+1) << 6 ) | ( ((*pScanline) & 0xE0) >> 2 ) ); iBGb16 = (mng_uint8)( *(pScanline ) << 3 ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); /* and return the composed values */ *(pScanline+1) = (mng_uint8)( (mng_uint8)(((iFGb16 >> 8) & 0xF8) >> 1 ) | ( (mng_uint8)(iFGg16 >> 8) >> 6 ) ); *pScanline = (mng_uint8)( (mng_uint8) ((iFGr16 >>11) >> 3 ) | ( ( (mng_uint8)(iFGg16 >> 8) & 0xF8) << 2 ) ); } } pScanline += (pData->iColinc * 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ((*(pDataline+2) & 0xF8) >> 1 ) | (*(pDataline+1) >> 6 ) ); *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+1) & 0xF8) << 2 ) ); } else { /* do alpha composing */ mng_uint8 iRed, iGreen, iBlue; iRed = (mng_uint8)( (*(pScanline+1) & 0xF8) << 1 ); iGreen = (mng_uint8)( (*(pScanline+1) << 6 ) | ( ((*pScanline) & 0xE0) >> 2 ) ); iBlue = (mng_uint8)( *(pScanline ) << 3 ); MNG_COMPOSE8 (iRed, *(pDataline+2), iA8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+0), iA8, iBlue ); *(pScanline+1) = (mng_uint8)( ( (iRed & 0xF8) >> 1 ) | ( iGreen >> 6 ) ); *pScanline = (mng_uint8)( (iBlue >> 3 ) | ( (iGreen & 0xF8) << 2 ) ); } } pScanline += (pData->iColinc * 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB555, MNG_LC_END); #endif return MNG_NOERROR; } #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ mng_retcode mng_display_rgb555 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint16 iA16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint8 iA8; mng_uint8 iBps; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB555, MNG_LC_START); #endif iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); pDataline = pData->pRGBArow; /* address source row */ /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); if (pData->bIsOpaque) /* forget about transparency ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( ((*(pDataline+2*iBps) & 0xF8) >> 1 ) | (*(pDataline+iBps) >> 6 ) ); *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+iBps) & 0xF8) << 2 ) ); pScanline += (pData->iColinc * 2); pDataline += 4*iBps; } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA16 = mng_get_uint16 (pDataline+6); if (iA16) /* any opacity at all ? */ { if (iA16 == 0xFFFF) /* fully opaque ? */ { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( ((*(pDataline+4) & 0xF8) >> 1 ) | (*(pDataline+2) >> 6 ) ); *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+2) & 0xF8) << 2 ) ); } else { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGr16 = (mng_uint8)( (*(pScanline+1) & 0xF8) << 1 ); iBGg16 = (mng_uint8)( (*(pScanline+1) << 6 ) | ( ((*pScanline) & 0xE0) >> 2 ) ); iBGb16 = (mng_uint8)( *(pScanline ) << 3 ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); /* and return the composed values */ *(pScanline+1) = (mng_uint8)( (mng_uint8)(((iFGb16 >> 8) & 0xF8) >> 1 ) | ( (mng_uint8)(iFGg16 >> 8) >> 6 ) ); *pScanline = (mng_uint8)( (mng_uint8) ((iFGr16 >>11) >> 3 ) | ( ( (mng_uint8)(iFGg16 >> 8) & 0xF8) << 2 ) ); } } pScanline += (pData->iColinc * 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ((*(pDataline+2) & 0xF8) >> 1 ) | (*(pDataline+1) >> 6 ) ); *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+1) & 0xF8) << 2 ) ); } else { /* do alpha composing */ mng_uint8 iRed, iGreen, iBlue; iRed = (mng_uint8)( (*(pScanline+1) & 0xF8) << 1 ); iGreen = (mng_uint8)( (*(pScanline+1) << 6 ) | ( ((*pScanline) & 0xE0) >> 2 ) ); iBlue = (mng_uint8)( *(pScanline ) << 3 ); MNG_COMPOSE8 (iRed, *(pDataline+2), iA8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+0), iA8, iBlue ); *(pScanline+1) = (mng_uint8)( ( (iRed & 0xF8) >> 1 ) | ( iGreen >> 6 ) ); *pScanline = (mng_uint8)( (iBlue >> 3 ) | ( (iGreen & 0xF8) << 2 ) ); } } pScanline += (pData->iColinc * 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB555, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ #else /* MNG_NO_16BIT_SUPPORT */ mng_retcode mng_display_rgb555 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iA8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB555, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); pDataline = pData->pRGBArow; /* address source row */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *(pScanline+1) = (mng_uint8)( ((*(pDataline+2) & 0xF8) >> 1 ) | (*(pDataline+1) >> 6 ) ); *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+1) & 0xF8) << 2 ) ); pScanline += (pData->iColinc * 2); pDataline += 4; } } } else { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ((*(pDataline+2) & 0xF8) >> 1 ) | (*(pDataline+1) >> 6 ) ); *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+1) & 0xF8) << 2 ) ); } else { /* do alpha composing */ mng_uint8 iRed, iGreen, iBlue; iRed = (mng_uint8)( (*(pScanline+1) & 0xF8) << 1 ); iGreen = (mng_uint8)( (*(pScanline+1) << 6 ) | ( ((*pScanline) & 0xE0) >> 2 ) ); iBlue = (mng_uint8)( *(pScanline ) << 3 ); MNG_COMPOSE8 (iRed, *(pDataline+2), iA8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+0), iA8, iBlue ); *(pScanline+1) = (mng_uint8)( ( (iRed & 0xF8) >> 1 ) | ( iGreen >> 6 ) ); *pScanline = (mng_uint8)( (iBlue >> 3 ) | ( (iGreen & 0xF8) << 2 ) ); } } pScanline += (pData->iColinc * 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_RGB555, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_16BIT_SUPPORT */ #endif /* MNG_SKIPCANVAS_RGB555 */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_BGR555 #ifndef MNG_NO_16BIT_SUPPORT #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE mng_retcode mng_display_bgr555 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint16 iA16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint8 iA8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR555, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); pDataline = pData->pRGBArow; /* address source row */ if (pData->bIsRGBA16) /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); else pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( ((*(pDataline ) & 0xF8) >> 1 ) | (*(pDataline+2) >> 6 ) ); *pScanline = (mng_uint8)( ( *(pDataline+4) >> 3 ) | ((*(pDataline+2) & 0xF8) << 2 ) ); pScanline += (pData->iColinc * 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *(pScanline+1) = (mng_uint8)( ((*(pDataline ) & 0xF8) >> 1 ) | (*(pDataline+1) >> 6 ) ); *pScanline = (mng_uint8)( ( *(pDataline+2) >> 3 ) | ((*(pDataline+1) & 0xF8) << 2 ) ); pScanline += (pData->iColinc * 2); pDataline += 4; } } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA16 = mng_get_uint16 (pDataline+6); if (iA16) /* any opacity at all ? */ { if (iA16 == 0xFFFF) /* fully opaque ? */ { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( ((*(pDataline ) & 0xF8) >> 1 ) | (*(pDataline+2) >> 6 ) ); *pScanline = (mng_uint8)( ( *(pDataline+4) >> 3 ) | ((*(pDataline+2) & 0xF8) << 2 ) ); } else { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGb16 = (mng_uint8)( (*(pScanline+1) & 0xF8) << 1 ); iBGg16 = (mng_uint8)( (*(pScanline+1) << 6 ) | ( ((*pScanline) & 0xE0) >> 2 ) ); iBGr16 = (mng_uint8)( *(pScanline ) << 3 ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); /* and return the composed values */ *(pScanline+1) = (mng_uint8)( (mng_uint8)(((iFGr16 >> 8) & 0xF8) >> 1 ) | ( (mng_uint8)(iFGg16 >> 8) >> 6 ) ); *pScanline = (mng_uint8)( (mng_uint8) ((iFGb16 >>11) >> 3 ) | ( ( (mng_uint8)(iFGg16 >> 8) & 0xF8) << 2 ) ); } } pScanline += (pData->iColinc * 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ((*(pDataline ) & 0xF8) >> 1 ) | (*(pDataline+1) >> 6 ) ); *pScanline = (mng_uint8)( ( *(pDataline+2) >> 3 ) | ((*(pDataline+1) & 0xF8) << 2 ) ); } else { /* do alpha composing */ mng_uint8 iRed, iGreen, iBlue; iRed = (mng_uint8)( (*(pScanline+1) & 0xF8) << 1 ); iGreen = (mng_uint8)( (*(pScanline+1) << 6 ) | ( ((*pScanline) & 0xE0) >> 2 ) ); iBlue = (mng_uint8)( *(pScanline ) << 3 ); MNG_COMPOSE8 (iRed, *(pDataline+0), iA8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+2), iA8, iBlue ); *(pScanline+1) = (mng_uint8)( ( (iRed & 0xF8) >> 1 ) | ( iGreen >> 6 ) ); *pScanline = (mng_uint8)( (iBlue >> 3 ) | ( (iGreen & 0xF8) << 2 ) ); } } pScanline += (pData->iColinc * 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR555, MNG_LC_END); #endif return MNG_NOERROR; } #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ mng_retcode mng_display_bgr555 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint16 iA16; mng_uint16 iFGr16, iFGg16, iFGb16; mng_uint16 iBGr16, iBGg16, iBGb16; mng_uint8 iA8; mng_uint8 iBps; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR555, MNG_LC_START); #endif iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); pDataline = pData->pRGBArow; /* address source row */ /* adjust source row starting-point */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); if (pData->bIsOpaque) /* forget about transparency ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( ((*(pDataline ) & 0xF8) >> 1 ) | (*(pDataline+iBps) >> 6 ) ); *pScanline = (mng_uint8)( ( *(pDataline+2*iBps) >> 3 ) | ((*(pDataline+iBps) & 0xF8) << 2 ) ); pScanline += (pData->iColinc * 2); pDataline += 4*iBps; } } else { if (pData->bIsRGBA16) /* 16-bit input row ? */ { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA16 = mng_get_uint16 (pDataline+6); if (iA16) /* any opacity at all ? */ { if (iA16 == 0xFFFF) /* fully opaque ? */ { /* scale down by dropping the LSB */ *(pScanline+1) = (mng_uint8)( ((*(pDataline ) & 0xF8) >> 1 ) | (*(pDataline+2) >> 6 ) ); *pScanline = (mng_uint8)( ( *(pDataline+4) >> 3 ) | ((*(pDataline+2) & 0xF8) << 2 ) ); } else { /* get the proper values */ iFGr16 = mng_get_uint16 (pDataline ); iFGg16 = mng_get_uint16 (pDataline+2); iFGb16 = mng_get_uint16 (pDataline+4); /* scale background up */ iBGb16 = (mng_uint8)( (*(pScanline+1) & 0xF8) << 1 ); iBGg16 = (mng_uint8)( (*(pScanline+1) << 6 ) | ( ((*pScanline) & 0xE0) >> 2 ) ); iBGr16 = (mng_uint8)( *(pScanline ) << 3 ); iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; /* now compose */ MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); /* and return the composed values */ *(pScanline+1) = (mng_uint8)( (mng_uint8)(((iFGr16 >> 8) & 0xF8) >> 1 ) | ( (mng_uint8)(iFGg16 >> 8) >> 6 ) ); *pScanline = (mng_uint8)( (mng_uint8) ((iFGb16 >>11) >> 3 ) | ( ( (mng_uint8)(iFGg16 >> 8) & 0xF8) << 2 ) ); } } pScanline += (pData->iColinc * 2); pDataline += 8; } } else { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ((*(pDataline ) & 0xF8) >> 1 ) | (*(pDataline+1) >> 6 ) ); *pScanline = (mng_uint8)( ( *(pDataline+2) >> 3 ) | ((*(pDataline+1) & 0xF8) << 2 ) ); } else { /* do alpha composing */ mng_uint8 iRed, iGreen, iBlue; iRed = (mng_uint8)( (*(pScanline+1) & 0xF8) << 1 ); iGreen = (mng_uint8)( (*(pScanline+1) << 6 ) | ( ((*pScanline) & 0xE0) >> 2 ) ); iBlue = (mng_uint8)( *(pScanline ) << 3 ); MNG_COMPOSE8 (iRed, *(pDataline+0), iA8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+2), iA8, iBlue ); *(pScanline+1) = (mng_uint8)( ( (iRed & 0xF8) >> 1 ) | ( iGreen >> 6 ) ); *pScanline = (mng_uint8)( (iBlue >> 3 ) | ( (iGreen & 0xF8) << 2 ) ); } } pScanline += (pData->iColinc * 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR555, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ #else /* MNG_NO_16BIT_SUPPORT */ mng_retcode mng_display_bgr555 (mng_datap pData) { mng_uint8p pScanline; mng_uint8p pDataline; mng_int32 iX; mng_uint8 iA8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR555, MNG_LC_START); #endif /* viewable row ? */ if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) { /* address destination row */ pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), pData->iRow + pData->iDestt - pData->iSourcet); /* adjust destination row starting-point */ pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); pDataline = pData->pRGBArow; /* address source row */ pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); if (pData->bIsOpaque) /* forget about transparency ? */ { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { /* copy the values */ *(pScanline+1) = (mng_uint8)( ((*(pDataline ) & 0xF8) >> 1 ) | (*(pDataline+1) >> 6 ) ); *pScanline = (mng_uint8)( ( *(pDataline+2) >> 3 ) | ((*(pDataline+1) & 0xF8) << 2 ) ); pScanline += (pData->iColinc * 2); pDataline += 4; } } } else { { for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) { iA8 = *(pDataline+3); /* get alpha value */ if (iA8) /* any opacity at all ? */ { if (iA8 == 0xFF) /* fully opaque ? */ { /* then simply copy the values */ *(pScanline+1) = (mng_uint8)( ((*(pDataline ) & 0xF8) >> 1 ) | (*(pDataline+1) >> 6 ) ); *pScanline = (mng_uint8)( ( *(pDataline+2) >> 3 ) | ((*(pDataline+1) & 0xF8) << 2 ) ); } else { /* do alpha composing */ mng_uint8 iRed, iGreen, iBlue; iRed = (mng_uint8)( (*(pScanline+1) & 0xF8) << 1 ); iGreen = (mng_uint8)( (*(pScanline+1) << 6 ) | ( ((*pScanline) & 0xE0) >> 2 ) ); iBlue = (mng_uint8)( *(pScanline ) << 3 ); MNG_COMPOSE8 (iRed, *(pDataline+0), iA8, iRed ); MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); MNG_COMPOSE8 (iBlue, *(pDataline+2), iA8, iBlue ); *(pScanline+1) = (mng_uint8)( ( (iRed & 0xF8) >> 1 ) | ( iGreen >> 6 ) ); *pScanline = (mng_uint8)( (iBlue >> 3 ) | ( (iGreen & 0xF8) << 2 ) ); } } pScanline += (pData->iColinc * 2); pDataline += 4; } } } } check_update_region (pData); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_BGR555, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_16BIT_SUPPORT */ #endif /* MNG_SKIPCANVAS_BGR555 */ #ifndef MNG_SKIPCHUNK_BACK /* ************************************************************************** */ /* * * */ /* * Background restore routines - restore the background with info from * */ /* * the BACK and/or bKGD chunk or the app's background canvas * */ /* * * */ /* ************************************************************************** */ mng_retcode mng_restore_bkgd_backimage (mng_datap pData) { /* save some stuff */ mng_uint8p pRGBArow = pData->pRGBArow; mng_int32 iRow = pData->iRow; mng_int32 iRowsamples = pData->iRowsamples; mng_retcode iRetcode; /* work variables */ mng_uint8p pTemp; mng_uint8p pWork = pRGBArow; mng_uint32 iX; mng_int32 iZ; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RESTORE_BACKIMAGE, MNG_LC_START); #endif /* determine row to retrieve */ pData->iRow = pData->iDestt + iRow + pData->iBackimgoffsy; while (pData->iRow >= (mng_int32)pData->iBackimgheight) pData->iRow -= (mng_int32)pData->iBackimgheight; /* set width to that of background image */ pData->iRowsamples = pData->iBackimgwidth; /* retrieve into alternate buffer ! */ pData->pRGBArow = pData->pPrevrow; /* get it then */ iRetcode = ((mng_retrieverow)pData->fRetrieverow) (pData); if (iRetcode) /* on error; bail out */ return iRetcode; /* we got the full row; but now need to paste it into the proper location */ iX = pData->iDestl - pData->iBackimgoffsx; while (iX >= pData->iBackimgwidth) iX -= pData->iBackimgwidth; #ifndef MNG_NO_16BIT_SUPPORT if (pData->bIsRGBA16) /* 16-bit buffer ? */ { pTemp = pData->pPrevrow + (iX << 3); for (iZ = (pData->iDestr - pData->iDestl); iZ > 0; iZ--) { MNG_COPY (pWork, pTemp, 8); pWork += 8; pTemp += 8; iX++; /* reached end of bkgd-image line ? */ if (iX >= pData->iBackimgwidth) { iX = 0; pTemp = pData->pPrevrow; } } } else #endif { pTemp = pData->pPrevrow + (iX << 2); for (iZ = (pData->iDestr - pData->iDestl); iZ > 0; iZ--) { MNG_COPY (pWork, pTemp, 4); pWork += 4; pTemp += 4; iX++; /* reached end of bkgd-image line ? */ if (iX >= pData->iBackimgwidth) { iX = 0; pTemp = pData->pPrevrow; } } } pData->pRGBArow = pRGBArow; /* restore original values */ pData->iRow = iRow; pData->iRowsamples = iRowsamples; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RESTORE_BACKIMAGE, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_restore_bkgd_backcolor (mng_datap pData) { mng_int32 iX; mng_uint32p pWork32 = (mng_uint32p)pData->pRGBArow; mng_uint32 iWrite; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RESTORE_BACKCOLOR, MNG_LC_START); #endif #ifdef MNG_BIGENDIAN_SUPPORTED /* fast way for big endian */ iWrite = (((mng_uint8)(pData->iBACKred >> 8)) << 24) | (((mng_uint8)(pData->iBACKgreen >> 8)) << 16) | (((mng_uint8)(pData->iBACKblue >> 8)) << 8) | ( 0xFF ); #elif defined(MNG_LITTLEENDIAN_SUPPORTED) /* fast way for little endian */ iWrite = ( 0xFF << 24) | (((mng_uint8)(pData->iBACKblue >> 8)) << 16) | (((mng_uint8)(pData->iBACKgreen >> 8)) << 8) | (((mng_uint8)(pData->iBACKred >> 8)) ); #else /* generic way, works on all platforms */ /* put the data in memory in the correct order */ { mng_uint8 aBytes[4]; aBytes[0] = (mng_uint8)(pData->iBACKred >> 8); aBytes[1] = (mng_uint8)(pData->iBACKgreen >> 8); aBytes[2] = (mng_uint8)(pData->iBACKblue >> 8); aBytes[3] = 0xFF; /* load that data into a register */ iWrite = *(mng_uint32*) aBytes; } #endif /* ok; drop the background-color in there */ for (iX = (pData->iSourcer - pData->iSourcel); iX > 0; iX--) *pWork32++ = iWrite; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RESTORE_BACKCOLOR, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_SKIPCHUNK_bKGD mng_retcode mng_restore_bkgd_bkgd (mng_datap pData) { mng_int32 iX; mng_uint8p pWork = pData->pRGBArow; mng_imagep pImage = (mng_imagep)pData->pCurrentobj; mng_imagedatap pBuf = pImage->pImgbuf; mng_uint8 iRed = 0; mng_uint8 iGreen = 0; mng_uint8 iBlue = 0; mng_uint32p pWork32 = (mng_uint32p)pWork; mng_uint32 iWrite; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RESTORE_BKGD, MNG_LC_START); #endif switch (pBuf->iColortype) { case 0 : ; /* gray types */ case 4 : { mng_uint8 iGray; #ifndef MNG_NO_16BIT_SUPPORT if (pBuf->iBitdepth > 8) iGray = (mng_uint8)(pBuf->iBKGDgray >> 8); else #endif { #ifndef MNG_NO_1_2_4BIT_SUPPORT /* LBR scaling */ mng_uint8 multiplier[]={0,255,85,0,17,0,0,0,1}; iGray = (mng_uint8)(multiplier[pBuf->iBitdepth] * pBuf->iBKGDgray); #else iGray = (mng_uint8)pBuf->iBKGDgray; #endif } iRed = iGray; iGreen = iGray; iBlue = iGray; break; } case 3 : { /* indexed type */ iRed = pBuf->aPLTEentries [pBuf->iBKGDindex].iRed; iGreen = pBuf->aPLTEentries [pBuf->iBKGDindex].iGreen; iBlue = pBuf->aPLTEentries [pBuf->iBKGDindex].iBlue; break; } case 2 : ; /* rgb types */ case 6 : { #ifndef MNG_NO_16BIT_SUPPORT if (pBuf->iBitdepth > 8) { iRed = (mng_uint8)(pBuf->iBKGDred >> 8); iGreen = (mng_uint8)(pBuf->iBKGDgreen >> 8); iBlue = (mng_uint8)(pBuf->iBKGDblue >> 8); } else #endif { iRed = (mng_uint8)(pBuf->iBKGDred ); iGreen = (mng_uint8)(pBuf->iBKGDgreen); iBlue = (mng_uint8)(pBuf->iBKGDblue ); } break; } } #ifdef MNG_BIGENDIAN_SUPPORTED /* fast way for big endian */ iWrite = (iRed << 24) | (iGreen << 16) | (iBlue << 8); #elif defined(MNG_LITTLEENDIAN_SUPPORTED) /* fast way for little endian */ iWrite = (iBlue << 16) | (iGreen << 8) | (iRed ); #else /* generic way, works on all platforms */ /* put the data in memory in the correct order */ { mng_uint8 aBytes[4]; aBytes[0] = (mng_uint8)(iRed); aBytes[1] = (mng_uint8)(iGreen); aBytes[2] = (mng_uint8)(iBlue); aBytes[3] = 0x00; /* load that data into a register */ iWrite = *(mng_uint32*) aBytes; } #endif /* ok; drop it in there */ for (iX = (pData->iSourcer - pData->iSourcel); iX > 0; iX--) *pWork32++ = iWrite; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RESTORE_BKGD, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_restore_bkgd_bgcolor (mng_datap pData) { mng_int32 iX; mng_uint32p pWork32 = (mng_uint32p)pData->pRGBArow; mng_uint32 iWrite; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RESTORE_BGCOLOR, MNG_LC_START); #endif #ifdef MNG_BIGENDIAN_SUPPORTED /* fast way for big endian */ iWrite = (((mng_uint8)(pData->iBGred >> 8)) << 24) | (((mng_uint8)(pData->iBGgreen >> 8)) << 16) | (((mng_uint8)(pData->iBGblue >> 8)) << 8); #elif defined(MNG_LITTLEENDIAN_SUPPORTED) /* fast way for little endian */ iWrite = (((mng_uint8)(pData->iBGblue >> 8)) << 16) | (((mng_uint8)(pData->iBGgreen >> 8)) << 8) | (((mng_uint8)(pData->iBGred >> 8)) ); #else /* generic way, works on all platforms */ /* put the data in memory in the correct order */ { mng_uint8 aBytes[4]; aBytes[0] = (mng_uint8)(pData->iBGred >> 8); aBytes[1] = (mng_uint8)(pData->iBGgreen >> 8); aBytes[2] = (mng_uint8)(pData->iBGblue >> 8); aBytes[3] = 0x00; /* load that data into a register */ iWrite = *(mng_uint32*) aBytes; } #endif /* ok; drop the background-color in there */ for (iX = (pData->iSourcer - pData->iSourcel); iX > 0; iX--) *pWork32++ = iWrite; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RESTORE_BGCOLOR, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_RGB8 mng_retcode mng_restore_bkgd_rgb8 (mng_datap pData) { mng_int32 iX; mng_uint8p pBkgd; mng_uint8p pWork = pData->pRGBArow; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RESTORE_RGB8, MNG_LC_START); #endif if (pData->fGetbkgdline) /* can we access the background ? */ { /* point to the right pixel then */ pBkgd = (mng_uint8p)pData->fGetbkgdline ((mng_handle)pData, pData->iRow + pData->iDestt) + (3 * pData->iDestl); for (iX = (pData->iSourcer - pData->iSourcel); iX > 0; iX--) { *pWork = *pBkgd; /* ok; copy the pixel */ *(pWork+1) = *(pBkgd+1); *(pWork+2) = *(pBkgd+2); *(pWork+3) = 0x00; /* transparant for alpha-canvasses */ pWork += 4; pBkgd += 3; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RESTORE_RGB8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_SKIPCANVAS_RGB8 */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_BGR8 mng_retcode mng_restore_bkgd_bgr8 (mng_datap pData) { mng_int32 iX; mng_uint8p pBkgd; mng_uint8p pWork = pData->pRGBArow; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RESTORE_BGR8, MNG_LC_START); #endif if (pData->fGetbkgdline) /* can we access the background ? */ { /* point to the right pixel then */ pBkgd = (mng_uint8p)pData->fGetbkgdline ((mng_handle)pData, pData->iRow + pData->iDestt) + (3 * pData->iDestl); for (iX = (pData->iSourcer - pData->iSourcel); iX > 0; iX--) { *pWork = *(pBkgd+2); /* ok; copy the pixel */ *(pWork+1) = *(pBkgd+1); *(pWork+2) = *pBkgd; *(pWork+3) = 0x00; /* transparant for alpha-canvasses */ pWork += 4; pBkgd += 3; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RESTORE_BGR8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_SKIPCANVAS_BGR8 */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_BGRX8 mng_retcode mng_restore_bkgd_bgrx8 (mng_datap pData) { mng_int32 iX; mng_uint8p pBkgd; mng_uint8p pWork = pData->pRGBArow; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RESTORE_BGRX8, MNG_LC_START); #endif if (pData->fGetbkgdline) /* can we access the background ? */ { /* point to the right pixel then */ pBkgd = (mng_uint8p)pData->fGetbkgdline ((mng_handle)pData, pData->iRow + pData->iDestt) + (3 * pData->iDestl); for (iX = (pData->iSourcer - pData->iSourcel); iX > 0; iX--) { *pWork = *(pBkgd+2); /* ok; copy the pixel */ *(pWork+1) = *(pBkgd+1); *(pWork+2) = *pBkgd; *(pWork+3) = 0x00; /* transparant for alpha-canvasses */ pWork += 4; pBkgd += 4; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RESTORE_BGRX8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_SKIPCANVAS_BGRX8 */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_BGR565 mng_retcode mng_restore_bkgd_bgr565 (mng_datap pData) { mng_int32 iX; mng_uint8p pBkgd; mng_uint8p pWork = pData->pRGBArow; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RESTORE_BGR565, MNG_LC_START); #endif if (pData->fGetbkgdline) /* can we access the background ? */ { /* point to the right pixel then */ pBkgd = (mng_uint8p)pData->fGetbkgdline ((mng_handle)pData, pData->iRow + pData->iDestt) + (3 * pData->iDestl); for (iX = (pData->iSourcer - pData->iSourcel); iX > 0; iX--) { *pWork = (mng_uint8)( *(pBkgd+1) & 0xF8); /* ok; copy the pixel */ *(pWork+1) = (mng_uint8)( (*(pBkgd+1) << 5 ) | ( ((*pBkgd)&0xE0)>>3 ) ); *(pWork+2) = (mng_uint8)( *(pBkgd) << 3 ); *(pWork+3) = 0x00; /* transparant for alpha-canvasses */ pWork += 4; pBkgd += 2; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RESTORE_BGR565, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_SKIPCANVAS_BGR565 */ /* ************************************************************************** */ #ifndef MNG_SKIPCANVAS_RGB565 mng_retcode mng_restore_bkgd_rgb565 (mng_datap pData) { mng_int32 iX; mng_uint8p pBkgd; mng_uint8p pWork = pData->pRGBArow; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RESTORE_RGB565, MNG_LC_START); #endif if (pData->fGetbkgdline) /* can we access the background ? */ { /* point to the right pixel then */ pBkgd = (mng_uint8p)pData->fGetbkgdline ((mng_handle)pData, pData->iRow + pData->iDestt) + (3 * pData->iDestl); for (iX = (pData->iSourcer - pData->iSourcel); iX > 0; iX--) { *pWork = (mng_uint8)( *(pBkgd)&0xF8); /* ok; copy the pixel */ *(pWork+1) = (mng_uint8)( (*(pBkgd+1) << 5) | ( ((*pBkgd)&0xE0)>>3 ) ); *(pWork+2) = (mng_uint8)( *(pBkgd+1) << 3); *(pWork+3) = 0x00; /* transparant for alpha-canvasses */ pWork += 4; pBkgd += 2; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RESTORE_RGB565, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_SKIPCANVAS_RBB565 */ /* ************************************************************************** */ /* * * */ /* * Row retrieval routines - retrieve processed & uncompressed row-data * */ /* * from the current "object" * */ /* * * */ /* ************************************************************************** */ /* TODO: a serious optimization is to retrieve only those pixels that will actually be displayed; this would require changes in the "display_image" routine (in mng_display.c) & all the "retrieve_xxx" routines below & the "display_xxx" routines above !!!!! NOTE that "correct_xxx" routines would not require modification */ mng_retcode mng_retrieve_g8 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pRGBArow; mng_int32 iX; mng_uint8 iG; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RETRIEVE_G8, MNG_LC_START); #endif pRGBArow = pData->pRGBArow; /* temporary work pointers */ pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); if (pBuf->bHasTRNS) /* tRNS in buffer ? */ { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iG = *pWorkrow; /* get the gray-value */ /* is it transparent ? */ if ((mng_uint16)iG == pBuf->iTRNSgray) { *pRGBArow = 0x00; /* nuttin to display */ *(pRGBArow+1) = 0x00; *(pRGBArow+2) = 0x00; *(pRGBArow+3) = 0x00; } else { #ifndef MNG_NO_1_2_4BIT_SUPPORT mng_uint8 multiplier[]={0,255,85,0,17,0,0,0,1}; iG = (mng_uint8)(iG * multiplier[pBuf->iBitdepth]); #endif *pRGBArow = iG; /* put in intermediate row */ *(pRGBArow+1) = iG; *(pRGBArow+2) = iG; *(pRGBArow+3) = 0xFF; } pWorkrow++; /* next pixel */ pRGBArow += 4; } } else { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { #ifndef MNG_NO_1_2_4BIT_SUPPORT mng_uint8 multiplier[]={0,255,85,0,17,0,0,0,1}; /* LBR scaling */ iG = (mng_uint8)(multiplier[pBuf->iBitdepth] * *pWorkrow); #else iG = *pWorkrow; /* get the gray-value */ #endif *pRGBArow = iG; /* put in intermediate row */ *(pRGBArow+1) = iG; *(pRGBArow+2) = iG; *(pRGBArow+3) = 0xFF; pWorkrow++; /* next pixel */ pRGBArow += 4; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RETRIEVE_G8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_retrieve_g16 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pRGBArow; mng_int32 iX; mng_uint16 iG; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RETRIEVE_G16, MNG_LC_START); #endif /* temporary work pointers */ pRGBArow = pData->pRGBArow; pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); if (pBuf->bHasTRNS) /* tRNS in buffer ? */ { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iG = mng_get_uint16 (pWorkrow); /* get the gray-value */ /* is it transparent ? */ if (iG == pBuf->iTRNSgray) { /* nuttin to display */ mng_put_uint16 (pRGBArow, 0x0000); mng_put_uint16 (pRGBArow+2, 0x0000); mng_put_uint16 (pRGBArow+4, 0x0000); mng_put_uint16 (pRGBArow+6, 0x0000); } else { /* put in intermediate row */ mng_put_uint16 (pRGBArow, iG); mng_put_uint16 (pRGBArow+2, iG); mng_put_uint16 (pRGBArow+4, iG); mng_put_uint16 (pRGBArow+6, 0xFFFF); } pWorkrow += 2; /* next pixel */ pRGBArow += 8; } } else { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iG = mng_get_uint16 (pWorkrow); /* get the gray-value */ mng_put_uint16 (pRGBArow, iG); /* and put in intermediate row */ mng_put_uint16 (pRGBArow+2, iG); mng_put_uint16 (pRGBArow+4, iG); mng_put_uint16 (pRGBArow+6, 0xFFFF); pWorkrow += 2; /* next pixel */ pRGBArow += 8; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RETRIEVE_G16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_retrieve_rgb8 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pRGBArow; mng_int32 iX; mng_uint8 iR, iG, iB; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RETRIEVE_RGB8, MNG_LC_START); #endif pRGBArow = pData->pRGBArow; /* temporary work pointers */ pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); if (pBuf->bHasTRNS) /* tRNS in buffer ? */ { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iR = *pWorkrow; /* get the rgb-values */ iG = *(pWorkrow+1); iB = *(pWorkrow+2); /* is it transparent ? */ if (((mng_uint16)iR == pBuf->iTRNSred ) && ((mng_uint16)iG == pBuf->iTRNSgreen) && ((mng_uint16)iB == pBuf->iTRNSblue ) ) { *pRGBArow = 0x00; /* nothing to display */ *(pRGBArow+1) = 0x00; *(pRGBArow+2) = 0x00; *(pRGBArow+3) = 0x00; } else { *pRGBArow = iR; /* put in intermediate row */ *(pRGBArow+1) = iG; *(pRGBArow+2) = iB; *(pRGBArow+3) = 0xFF; } pWorkrow += 3; /* next pixel */ pRGBArow += 4; } } else { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pRGBArow = *pWorkrow; /* just copy the pixel */ *(pRGBArow+1) = *(pWorkrow+1); *(pRGBArow+2) = *(pWorkrow+2); *(pRGBArow+3) = 0xFF; pWorkrow += 3; /* next pixel */ pRGBArow += 4; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RETRIEVE_RGB8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_retrieve_rgb16 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pRGBArow; mng_int32 iX; mng_uint16 iR, iG, iB; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RETRIEVE_RGB16, MNG_LC_START); #endif /* temporary work pointers */ pRGBArow = pData->pRGBArow; pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); if (pBuf->bHasTRNS) /* tRNS in buffer ? */ { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iR = mng_get_uint16 (pWorkrow); /* get the rgb-values */ iG = mng_get_uint16 (pWorkrow+2); iB = mng_get_uint16 (pWorkrow+4); /* is it transparent ? */ if ((iR == pBuf->iTRNSred ) && (iG == pBuf->iTRNSgreen) && (iB == pBuf->iTRNSblue ) ) { /* nothing to display */ mng_put_uint16 (pRGBArow, 0x0000); mng_put_uint16 (pRGBArow+2, 0x0000); mng_put_uint16 (pRGBArow+4, 0x0000); mng_put_uint16 (pRGBArow+6, 0x0000); } else { /* put in intermediate row */ mng_put_uint16 (pRGBArow, iR); mng_put_uint16 (pRGBArow+2, iG); mng_put_uint16 (pRGBArow+4, iB); mng_put_uint16 (pRGBArow+6, 0xFFFF); } pWorkrow += 6; /* next pixel */ pRGBArow += 8; } } else { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { /* just copy the pixel */ mng_put_uint16 (pRGBArow, mng_get_uint16 (pWorkrow )); mng_put_uint16 (pRGBArow+2, mng_get_uint16 (pWorkrow+2)); mng_put_uint16 (pRGBArow+4, mng_get_uint16 (pWorkrow+4)); mng_put_uint16 (pRGBArow+6, 0xFFFF); pWorkrow += 6; /* next pixel */ pRGBArow += 8; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RETRIEVE_RGB16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_retrieve_idx8 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pRGBArow; mng_int32 iX; mng_uint8 iQ; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RETRIEVE_IDX8, MNG_LC_START); #endif pRGBArow = pData->pRGBArow; /* temporary work pointers */ pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); if (pBuf->bHasTRNS) /* tRNS in buffer ? */ { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iQ = *pWorkrow; /* get the index */ /* is it valid ? */ if ((mng_uint32)iQ < pBuf->iPLTEcount) { /* put in intermediate row */ *pRGBArow = pBuf->aPLTEentries [iQ].iRed; *(pRGBArow+1) = pBuf->aPLTEentries [iQ].iGreen; *(pRGBArow+2) = pBuf->aPLTEentries [iQ].iBlue; /* transparency for this index ? */ if ((mng_uint32)iQ < pBuf->iTRNScount) *(pRGBArow+3) = pBuf->aTRNSentries [iQ]; else *(pRGBArow+3) = 0xFF; } else MNG_ERROR (pData, MNG_PLTEINDEXERROR); pWorkrow++; /* next pixel */ pRGBArow += 4; } } else { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iQ = *pWorkrow; /* get the index */ /* is it valid ? */ if ((mng_uint32)iQ < pBuf->iPLTEcount) { /* put in intermediate row */ *pRGBArow = pBuf->aPLTEentries [iQ].iRed; *(pRGBArow+1) = pBuf->aPLTEentries [iQ].iGreen; *(pRGBArow+2) = pBuf->aPLTEentries [iQ].iBlue; *(pRGBArow+3) = 0xFF; } else MNG_ERROR (pData, MNG_PLTEINDEXERROR); pWorkrow++; /* next pixel */ pRGBArow += 4; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RETRIEVE_IDX8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_retrieve_ga8 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pRGBArow; mng_int32 iX; mng_uint8 iG; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RETRIEVE_GA8, MNG_LC_START); #endif pRGBArow = pData->pRGBArow; /* temporary work pointers */ pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iG = *pWorkrow; /* get the gray-value */ *pRGBArow = iG; /* put in intermediate row */ *(pRGBArow+1) = iG; *(pRGBArow+2) = iG; *(pRGBArow+3) = *(pWorkrow+1); pWorkrow += 2; /* next pixel */ pRGBArow += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RETRIEVE_GA8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_retrieve_ga16 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pRGBArow; mng_int32 iX; mng_uint16 iG; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RETRIEVE_GA16, MNG_LC_START); #endif /* temporary work pointers */ pRGBArow = pData->pRGBArow; pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iG = mng_get_uint16 (pWorkrow); /* get the gray-value */ mng_put_uint16 (pRGBArow, iG); /* and put in intermediate row */ mng_put_uint16 (pRGBArow+2, iG); mng_put_uint16 (pRGBArow+4, iG); mng_put_uint16 (pRGBArow+6, mng_get_uint16 (pWorkrow+2)); pWorkrow += 4; /* next pixel */ pRGBArow += 8; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RETRIEVE_GA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_retrieve_rgba8 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pRGBArow; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RETRIEVE_RGBA8, MNG_LC_START); #endif pRGBArow = pData->pRGBArow; /* temporary work pointers */ pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); /* can't be easier than this ! */ MNG_COPY (pRGBArow, pWorkrow, pBuf->iRowsize); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RETRIEVE_RGBA8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_retrieve_rgba16 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pRGBArow; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RETRIEVE_RGBA16, MNG_LC_START); #endif /* temporary work pointers */ pRGBArow = pData->pRGBArow; pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); /* can't be easier than this ! */ MNG_COPY (pRGBArow, pWorkrow, pBuf->iRowsize); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_RETRIEVE_RGBA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ /* * * */ /* * Row storage routines - store processed & uncompressed row-data * */ /* * into the current "object" * */ /* * * */ /* ************************************************************************** */ #ifndef MNG_NO_1_2_4BIT_SUPPORT mng_retcode mng_store_g1 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_G1, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); iM = 0; /* start at pixel 0 */ iB = 0; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0x80; } if (iB & iM) /* is it white ? */ *pOutrow = 0x01; /* white */ else *pOutrow = 0x00; /* black */ pOutrow += pData->iColinc; /* next pixel */ iM >>= 1; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_G1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_store_g2 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; mng_uint32 iS; mng_uint8 iQ; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_G2, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); iM = 0; /* start at pixel 0 */ iB = 0; iS = 0; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xC0; iS = 6; } iQ = (mng_uint8)((iB & iM) >> iS); /* get the gray level */ *pOutrow = iQ; /* put in object buffer */ pOutrow += pData->iColinc; /* next pixel */ iM >>= 2; iS -= 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_G2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_store_g4 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; mng_uint32 iS; mng_uint8 iQ; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_G4, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); iM = 0; /* start at pixel 0 */ iB = 0; iS = 0; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xF0; iS = 4; } iQ = (mng_uint8)((iB & iM) >> iS); /* get the gray level */ *pOutrow = iQ; /* put in object buffer */ pOutrow += pData->iColinc; /* next pixel */ iM >>= 4; iS -= 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_G4, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_store_g8 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_G8, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* put in object buffer */ pOutrow += pData->iColinc; /* next pixel */ pWorkrow++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_G8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_store_g16 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_G16, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { /* copy into object buffer */ mng_put_uint16 (pOutrow, mng_get_uint16 (pWorkrow)); pOutrow += (pData->iColinc << 1); /* next pixel */ pWorkrow += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_G16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_store_rgb8 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_RGB8, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* copy the RGB bytes */ *(pOutrow+1) = *(pWorkrow+1); *(pOutrow+2) = *(pWorkrow+2); pWorkrow += 3; /* next pixel */ pOutrow += (pData->iColinc * 3); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_RGB8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_store_rgb16 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_RGB16, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { MNG_COPY (pOutrow, pWorkrow, 6); /* copy the RGB bytes */ pWorkrow += 6; /* next pixel */ pOutrow += (pData->iColinc * 6); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_RGB16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ #ifndef MNG_NO_1_2_4BIT_SUPPORT mng_retcode mng_store_idx1 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_IDX1, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); iM = 0; /* start at pixel 0 */ iB = 0; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0x80; } if (iB & iM) /* store the index */ *pOutrow = 0x01; else *pOutrow = 0x00; pOutrow += pData->iColinc; /* next pixel */ iM >>= 1; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_IDX1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_store_idx2 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; mng_uint32 iS; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_IDX2, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); iM = 0; /* start at pixel 0 */ iB = 0; iS = 0; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xC0; iS = 6; } /* store the index */ *pOutrow = (mng_uint8)((iB & iM) >> iS); pOutrow += pData->iColinc; /* next pixel */ iM >>= 2; iS -= 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_IDX2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_store_idx4 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; mng_uint32 iS; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_IDX4, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); iM = 0; /* start at pixel 0 */ iB = 0; iS = 0; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xF0; iS = 4; } /* store the index */ *pOutrow = (mng_uint8)((iB & iM) >> iS); pOutrow += pData->iColinc; /* next pixel */ iM >>= 4; iS -= 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_IDX4, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_store_idx8 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_IDX8, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* put in object buffer */ pOutrow += pData->iColinc; /* next pixel */ pWorkrow++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_IDX8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_store_ga8 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_GA8, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* copy the GA bytes */ *(pOutrow+1) = *(pWorkrow+1); pWorkrow += 2; /* next pixel */ pOutrow += (pData->iColinc << 1); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_GA8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_store_ga16 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_GA16, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { MNG_COPY (pOutrow, pWorkrow, 4); /* copy the GA bytes */ pWorkrow += 4; /* next pixel */ pOutrow += (pData->iColinc << 2); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_GA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_store_rgba8 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_RGBA8, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* copy the RGBA bytes */ *(pOutrow+1) = *(pWorkrow+1); *(pOutrow+2) = *(pWorkrow+2); *(pOutrow+3) = *(pWorkrow+3); pWorkrow += 4; /* next pixel */ pOutrow += (pData->iColinc << 2); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_RGBA8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_store_rgba16 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_RGBA16, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { MNG_COPY (pOutrow, pWorkrow, 8); /* copy the RGBA bytes */ pWorkrow += 8; /* next pixel */ pOutrow += (pData->iColinc << 3); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_RGBA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ /* * * */ /* * Row storage routines (JPEG) - store processed & uncompressed row-data * */ /* * into the current "object" * */ /* * * */ /* ************************************************************************** */ #ifdef MNG_INCLUDE_JNG /* ************************************************************************** */ mng_retcode mng_store_jpeg_g8 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8, MNG_LC_START); #endif pWorkrow = pData->pJPEGrow; /* temporary work pointers */ pOutrow = pBuf->pImgdata + (pData->iJPEGrow * pBuf->iRowsize); /* easy as pie ... */ MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8, MNG_LC_END); #endif return mng_next_jpeg_row (pData); /* we've got one more row of gray-samples */ } /* ************************************************************************** */ mng_retcode mng_store_jpeg_rgb8 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; #if RGB_PIXELSIZE != 3 mng_int32 iX; #endif #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8, MNG_LC_START); #endif pWorkrow = pData->pJPEGrow; /* temporary work pointers */ pOutrow = pBuf->pImgdata + (pData->iJPEGrow * pBuf->iRowsize); #if RGB_PIXELSIZE == 3 /* easy as pie ... */ MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples * 3); #else #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* copy pixel into object buffer */ *(pOutrow+1) = *(pWorkrow+1); *(pOutrow+2) = *(pWorkrow+2); pOutrow += 3; /* next pixel */ pWorkrow += RGB_PIXELSIZE; } #endif #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8, MNG_LC_END); #endif return mng_next_jpeg_row (pData); /* we've got one more row of rgb-samples */ } /* ************************************************************************** */ mng_retcode mng_store_jpeg_ga8 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_GA8, MNG_LC_START); #endif pWorkrow = pData->pJPEGrow; /* temporary work pointers */ pOutrow = pBuf->pImgdata + (pData->iJPEGrow * pBuf->iRowsize); #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* copy into object buffer */ pOutrow += 2; /* next pixel */ pWorkrow++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_GA8, MNG_LC_END); #endif return mng_next_jpeg_row (pData); /* we've got one more row of gray-samples */ } /* ************************************************************************** */ mng_retcode mng_store_jpeg_rgba8 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGBA8, MNG_LC_START); #endif pWorkrow = pData->pJPEGrow; /* temporary work pointers */ pOutrow = pBuf->pImgdata + (pData->iJPEGrow * pBuf->iRowsize); #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* copy pixel into object buffer */ *(pOutrow+1) = *(pWorkrow+1); *(pOutrow+2) = *(pWorkrow+2); pOutrow += 4; /* next pixel */ pWorkrow += RGB_PIXELSIZE; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGBA8, MNG_LC_END); #endif return mng_next_jpeg_row (pData); /* we've got one more row of rgb-samples */ } /* ************************************************************************** */ mng_retcode mng_store_jpeg_g8_alpha (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_ALPHA, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pJPEGrow2; pOutrow = pBuf->pImgdata + (pData->iJPEGalpharow * pBuf->iRowsize) + 1; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* put in object buffer */ pOutrow += 2; /* next pixel */ pWorkrow++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_ALPHA, MNG_LC_END); #endif /* we've got one more row of alpha-samples */ return mng_next_jpeg_alpharow (pData); } /* ************************************************************************** */ mng_retcode mng_store_jpeg_rgb8_alpha (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_ALPHA, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pJPEGrow2; pOutrow = pBuf->pImgdata + (pData->iJPEGalpharow * pBuf->iRowsize) + 3; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* put in object buffer */ pOutrow += 4; /* next pixel */ pWorkrow++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_ALPHA, MNG_LC_END); #endif /* we've got one more row of alpha-samples */ return mng_next_jpeg_alpharow (pData); } /* ************************************************************************** */ #ifndef MNG_NO_1_2_4BIT_SUPPORT mng_retcode mng_store_jpeg_g8_a1 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A1, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + 1; iM = 0; /* start at pixel 0 */ iB = 0; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0x80; } if (iB & iM) /* is it opaque ? */ *pOutrow = 0xFF; /* opaque */ else *pOutrow = 0x00; /* transparent */ pOutrow += 2; /* next pixel */ iM >>= 1; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A1, MNG_LC_END); #endif /* we've got one more row of alpha-samples */ return mng_next_jpeg_alpharow (pData); } /* ************************************************************************** */ mng_retcode mng_store_jpeg_g8_a2 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; mng_uint32 iS; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A2, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + 1; iM = 0; /* start at pixel 0 */ iB = 0; iS = 0; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xC0; iS = 6; } #ifdef MNG_OPTIMIZE_FOOTPRINT_SWITCH { const mng_uint8 alpha_level[4] = { 0x00, 0x55, 0xAA, 0xFF}; *pOutrow = alpha_level[((iB & iM) >> iS)] ; } #else switch ((iB & iM) >> iS) /* determine the alpha level */ { case 0x03 : { *pOutrow = 0xFF; break; } case 0x02 : { *pOutrow = 0xAA; break; } case 0x01 : { *pOutrow = 0x55; break; } default : { *pOutrow = 0x00; } } #endif pOutrow += 2; /* next pixel */ iM >>= 2; iS -= 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A2, MNG_LC_END); #endif /* we've got one more row of alpha-samples */ return mng_next_jpeg_alpharow (pData); } /* ************************************************************************** */ mng_retcode mng_store_jpeg_g8_a4 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; mng_uint32 iS; mng_uint8 iQ; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A4, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + 1; iM = 0; /* start at pixel 0 */ iB = 0; iS = 0; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xF0; iS = 4; } /* get the alpha level */ iQ = (mng_uint8)((iB & iM) >> iS); iQ = (mng_uint8)(iQ + (iQ << 4)); /* expand to 8-bit by replication */ *pOutrow = iQ; /* put in object buffer */ pOutrow += 2; /* next pixel */ iM >>= 4; iS -= 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A4, MNG_LC_END); #endif /* we've got one more row of alpha-samples */ return mng_next_jpeg_alpharow (pData); } #endif /* ************************************************************************** */ mng_retcode mng_store_jpeg_g8_a8 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A8, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + 1; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* put in object buffer */ pOutrow += 2; /* next pixel */ pWorkrow++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A8, MNG_LC_END); #endif /* we've got one more row of alpha-samples */ return mng_next_jpeg_alpharow (pData); } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_store_jpeg_g8_a16 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A16, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + 1; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* only high-order byte! */ pOutrow += 2; /* next pixel */ pWorkrow += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A16, MNG_LC_END); #endif /* we've got one more row of alpha-samples */ return mng_next_jpeg_alpharow (pData); } #endif /* ************************************************************************** */ #ifndef MNG_NO_1_2_4BIT_SUPPORT mng_retcode mng_store_jpeg_rgb8_a1 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A1, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + 3; iM = 0; /* start at pixel 0 */ iB = 0; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0x80; } if (iB & iM) /* is it opaque ? */ *pOutrow = 0xFF; /* opaque */ else *pOutrow = 0x00; /* transparent */ pOutrow += 4; /* next pixel */ iM >>= 1; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A1, MNG_LC_END); #endif /* we've got one more row of alpha-samples */ return mng_next_jpeg_alpharow (pData); } /* ************************************************************************** */ mng_retcode mng_store_jpeg_rgb8_a2 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; mng_uint32 iS; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A2, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + 3; iM = 0; /* start at pixel 0 */ iB = 0; iS = 0; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xC0; iS = 6; } #ifdef MNG_OPTIMIZE_FOOTPRINT_SWITCH { const mng_uint8 alpha_level[4] = { 0x00, 0x55, 0xAA, 0xFF}; *pOutrow = alpha_level[((iB & iM) >> iS)] ; } #else switch ((iB & iM) >> iS) /* determine the alpha level */ { case 0x03 : { *pOutrow = 0xFF; break; } case 0x02 : { *pOutrow = 0xAA; break; } case 0x01 : { *pOutrow = 0x55; break; } default : { *pOutrow = 0x00; } } #endif pOutrow += 4; /* next pixel */ iM >>= 2; iS -= 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A2, MNG_LC_END); #endif /* we've got one more row of alpha-samples */ return mng_next_jpeg_alpharow (pData); } /* ************************************************************************** */ mng_retcode mng_store_jpeg_rgb8_a4 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; mng_uint32 iS; mng_uint8 iQ; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A4, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + 3; iM = 0; /* start at pixel 0 */ iB = 0; iS = 0; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xF0; iS = 4; } /* get the alpha level */ iQ = (mng_uint8)((iB & iM) >> iS); iQ = (mng_uint8)(iQ + (iQ << 4)); /* expand to 8-bit by replication */ *pOutrow = iQ; /* put in object buffer */ pOutrow += 4; /* next pixel */ iM >>= 4; iS -= 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A4, MNG_LC_END); #endif /* we've got one more row of alpha-samples */ return mng_next_jpeg_alpharow (pData); } #endif /* ************************************************************************** */ mng_retcode mng_store_jpeg_rgb8_a8 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A8, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + 3; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* put in buffer */ pOutrow += 4; /* next pixel */ pWorkrow++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A8, MNG_LC_END); #endif /* we've got one more row of alpha-samples */ return mng_next_jpeg_alpharow (pData); } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_store_jpeg_rgb8_a16 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A16, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + 3; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* only high-order byte */ pOutrow += 4; /* next pixel */ pWorkrow += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A16, MNG_LC_END); #endif /* we've got one more row of alpha-samples */ return mng_next_jpeg_alpharow (pData); } #endif /* ************************************************************************** */ #ifdef MNG_SUPPORT_JPEG12 mng_retcode mng_store_jpeg_g12_a1 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A1, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + 2; iM = 0; /* start at pixel 0 */ iB = 0; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0x80; } if (iB & iM) /* opaque ? */ mng_put_uint16 (pOutrow, 0xFFFF);/* opaque */ else mng_put_uint16 (pOutrow, 0x0000);/* transparent */ pOutrow += 4; /* next pixel */ iM >>= 1; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A1, MNG_LC_END); #endif /* we've got one more row of alpha-samples */ return mng_next_jpeg_alpharow (pData); } #endif /* MNG_SUPPORT_JPEG12 */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_JPEG12 mng_retcode mng_store_jpeg_g12_a2 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; mng_uint32 iS; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A2, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + 2; iM = 0; /* start at pixel 0 */ iB = 0; iS = 0; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xC0; iS = 6; } #ifdef MNG_OPTIMIZE_FOOTPRINT_SWITCH { const mng_uint16 gray_level[4] = { 0x0000, 0x5555, 0xAAAA, 0xFFFF}; mng_put_uint16 (pOutrow, gray_level[((iB & iM) >> iS)]) ; } #else switch ((iB & iM) >> iS) /* determine the gray level */ { case 0x03 : { mng_put_uint16 (pOutrow, 0xFFFF); break; } case 0x02 : { mng_put_uint16 (pOutrow, 0xAAAA); break; } case 0x01 : { mng_put_uint16 (pOutrow, 0x5555); break; } default : { mng_put_uint16 (pOutrow, 0x0000); } } #endif pOutrow += 4; /* next pixel */ iM >>= 2; iS -= 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A2, MNG_LC_END); #endif /* we've got one more row of alpha-samples */ return mng_next_jpeg_alpharow (pData); } #endif /* MNG_SUPPORT_JPEG12 */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_JPEG12 mng_retcode mng_store_jpeg_g12_a4 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; mng_uint32 iS; mng_uint16 iQ; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A4, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + 2; iM = 0; /* start at pixel 0 */ iB = 0; iS = 0; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xF0; iS = 4; } /* get the gray level */ iQ = (mng_uint16)((iB & iM) >> iS); iQ = (mng_uint16)(iQ + (iQ << 4)); /* expand to 16-bit by replication */ iQ = (mng_uint16)(iQ + (iQ << 8)); /* put in object buffer */ mng_put_uint16 (pOutrow, iQ); pOutrow += 4; /* next pixel */ iM >>= 4; iS -= 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A4, MNG_LC_END); #endif /* we've got one more row of alpha-samples */ return mng_next_jpeg_alpharow (pData); } #endif /* MNG_SUPPORT_JPEG12 */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_JPEG12 mng_retcode mng_store_jpeg_g12_a8 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint16 iW; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A8, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + 2; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iW = (mng_uint16)(*pWorkrow); /* get input byte */ iW = (mng_uint16)(iW + (iW << 8)); /* expand to 16-bit by replication */ mng_put_uint16 (pOutrow, iW); /* put in object buffer */ pOutrow += 4; /* next pixel */ pWorkrow++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A8, MNG_LC_END); #endif /* we've got one more row of alpha-samples */ return mng_next_jpeg_alpharow (pData); } #endif /* MNG_SUPPORT_JPEG12 */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_JPEG12 #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_store_jpeg_g12_a16 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A16, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + 2; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { /* copy it */ mng_put_uint16 (pOutrow, mng_get_uint16 (pWorkrow)); pOutrow += 4; /* next pixel */ pWorkrow += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A16, MNG_LC_END); #endif /* we've got one more row of alpha-samples */ return mng_next_jpeg_alpharow (pData); } #endif #endif /* MNG_SUPPORT_JPEG12 */ /* ************************************************************************** */ #endif /* MNG_INCLUDE_JNG */ #ifndef MNG_NO_DELTA_PNG /* ************************************************************************** */ /* * * */ /* * Delta-image row routines - apply the processed & uncompressed row-data * */ /* * onto the target "object" * */ /* * * */ /* ************************************************************************** */ #ifndef MNG_NO_1_2_4BIT_SUPPORT mng_retcode mng_delta_g1 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_G1, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iDeltaBlocky * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + (pData->iDeltaBlockx * pBuf->iSamplesize); iM = 0; /* start at pixel 0 */ iB = 0; /* pixel replace ? */ if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0x80; } if (iB & iM) /* is it white ? */ *pOutrow = 0xFF; /* white */ else *pOutrow = 0x00; /* black */ pOutrow += pData->iColinc; /* next pixel */ iM >>= 1; } } else { /* pixel add ! */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0x80; } if (iB & iM) /* invert if it is white ? */ *pOutrow = (mng_uint8)(*pOutrow ^ 0xFF); pOutrow += pData->iColinc; /* next pixel */ iM >>= 1; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_G1, MNG_LC_END); #endif return mng_store_g1 (pData); } /* ************************************************************************** */ mng_retcode mng_delta_g2 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; mng_uint32 iS; #ifdef MNG_OPTIMIZE_FOOTPRINT_SWITCH const mng_uint8 level[4] = { 0x00, 0x55, 0xAA, 0xFF}; #endif #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_G2, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iDeltaBlocky * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + (pData->iDeltaBlockx * pBuf->iSamplesize); iM = 0; /* start at pixel 0 */ iB = 0; iS = 0; /* pixel replace ? */ if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xC0; iS = 6; } #ifdef MNG_OPTIMIZE_FOOTPRINT_SWITCH *pOutrow = level[((iB & iM) >> iS)] ; #else switch ((iB & iM) >> iS) /* determine the alpha level */ { case 0x03 : { *pOutrow = 0xFF; break; } case 0x02 : { *pOutrow = 0xAA; break; } case 0x01 : { *pOutrow = 0x55; break; } default : { *pOutrow = 0x00; } } #endif pOutrow += pData->iColinc; /* next pixel */ iM >>= 2; iS -= 2; } } else { /* pixel add ! */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xC0; iS = 6; } #ifdef MNG_OPTIMIZE_FOOTPRINT_SWITCH *pOutrow = level[((*pOutrow >> 6) + ((iB & iM) >> iS)) & 0x03] ; #else switch (((*pOutrow >> 6) + ((iB & iM) >> iS)) & 0x03) { case 0x03 : { *pOutrow = 0xFF; break; } case 0x02 : { *pOutrow = 0xAA; break; } case 0x01 : { *pOutrow = 0x55; break; } default : { *pOutrow = 0x00; } } #endif pOutrow += pData->iColinc; /* next pixel */ iM >>= 2; iS -= 2; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_G2, MNG_LC_END); #endif return mng_store_g2 (pData); } /* ************************************************************************** */ mng_retcode mng_delta_g4 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; mng_uint32 iS; mng_uint8 iQ; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_G4, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iDeltaBlocky * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + (pData->iDeltaBlockx * pBuf->iSamplesize); iM = 0; /* start at pixel 0 */ iB = 0; iS = 0; /* pixel replace ? */ if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xF0; iS = 4; } /* get the gray level */ iQ = (mng_uint8)((iB & iM) >> iS); /* expand to 8-bit by replication */ iQ = (mng_uint8)(iQ + (iQ << 4)); *pOutrow = iQ; /* put in object buffer */ pOutrow += pData->iColinc; /* next pixel */ iM >>= 4; iS -= 4; } } else { /* pixel add ! */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xF0; iS = 4; } /* get the gray level */ iQ = (mng_uint8)(((*pOutrow >> 4) + ((iB & iM) >> iS)) & 0x0F); /* expand to 8-bit by replication */ iQ = (mng_uint8)(iQ + (iQ << 4)); *pOutrow = iQ; /* put in object buffer */ pOutrow += pData->iColinc; /* next pixel */ iM >>= 4; iS -= 4; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_G4, MNG_LC_END); #endif return mng_store_g4 (pData); } #endif /* MNG_NO_1_2_4BIT_SUPPORT */ /* ************************************************************************** */ mng_retcode mng_delta_g8 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_G8, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iDeltaBlocky * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + (pData->iDeltaBlockx * pBuf->iSamplesize); /* pixel replace ? */ if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* put in object buffer */ pOutrow += pData->iColinc; /* next pixel */ pWorkrow++; } } else { /* pixel add ! */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { /* add to object buffer */ *pOutrow = (mng_uint8)(*pOutrow + *pWorkrow); pOutrow += pData->iColinc; /* next pixel */ pWorkrow++; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_G8, MNG_LC_END); #endif return mng_store_g8 (pData); } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_delta_g16 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_G16, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iDeltaBlocky * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + (pData->iDeltaBlockx * pBuf->iSamplesize); /* pixel replace ? */ if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* put in object buffer */ *(pOutrow+1) = *(pWorkrow+1); /* next pixel */ pOutrow += (pData->iColinc << 1); pWorkrow += 2; } } else { /* pixel add ! */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { /* add to object buffer */ mng_put_uint16 (pOutrow, (mng_uint16)(mng_get_uint16 (pOutrow ) + mng_get_uint16 (pWorkrow) )); /* next pixel */ pOutrow += (pData->iColinc << 1); pWorkrow += 2; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_G16, MNG_LC_END); #endif return mng_store_g16 (pData); } #endif /* ************************************************************************** */ mng_retcode mng_delta_rgb8 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGB8, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iDeltaBlocky * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + (pData->iDeltaBlockx * pBuf->iSamplesize); /* pixel replace ? */ if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* put in object buffer */ *(pOutrow+1) = *(pWorkrow+1); *(pOutrow+2) = *(pWorkrow+2); /* next pixel */ pOutrow += (pData->iColinc * 3); pWorkrow += 3; } } else { /* pixel add ! */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { /* add to object buffer */ *pOutrow = (mng_uint8)(*pOutrow + *pWorkrow ); *(pOutrow+1) = (mng_uint8)(*(pOutrow+1) + *(pWorkrow+1)); *(pOutrow+2) = (mng_uint8)(*(pOutrow+2) + *(pWorkrow+2)); /* next pixel */ pOutrow += (pData->iColinc * 3); pWorkrow += 3; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGB8, MNG_LC_END); #endif return mng_store_rgb8 (pData); } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_delta_rgb16 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGB16, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iDeltaBlocky * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + (pData->iDeltaBlockx * pBuf->iSamplesize); /* pixel replace ? */ if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* put in object buffer */ *(pOutrow+1) = *(pWorkrow+1); *(pOutrow+2) = *(pWorkrow+2); *(pOutrow+3) = *(pWorkrow+3); *(pOutrow+4) = *(pWorkrow+4); *(pOutrow+5) = *(pWorkrow+5); /* next pixel */ pOutrow += (pData->iColinc * 6); pWorkrow += 6; } } else { /* pixel add ! */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { /* add to object buffer */ mng_put_uint16 (pOutrow, (mng_uint16)(mng_get_uint16 (pOutrow ) + mng_get_uint16 (pWorkrow ) )); mng_put_uint16 (pOutrow+2, (mng_uint16)(mng_get_uint16 (pOutrow+2 ) + mng_get_uint16 (pWorkrow+2) )); mng_put_uint16 (pOutrow+4, (mng_uint16)(mng_get_uint16 (pOutrow+4 ) + mng_get_uint16 (pWorkrow+4) )); /* next pixel */ pOutrow += (pData->iColinc * 6); pWorkrow += 6; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGB16, MNG_LC_END); #endif return mng_store_rgb16 (pData); } #endif /* ************************************************************************** */ #ifndef MNG_NO_1_2_4BIT_SUPPORT mng_retcode mng_delta_idx1 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_IDX1, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iDeltaBlocky * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + (pData->iDeltaBlockx * pBuf->iSamplesize); iM = 0; /* start at pixel 0 */ iB = 0; /* pixel replace ? */ if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0x80; } if (iB & iM) /* put the right index value */ *pOutrow = 1; else *pOutrow = 0; pOutrow += pData->iColinc; /* next pixel */ iM >>= 1; } } else { /* pixel add ! */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0x80; } if (iB & iM) /* invert if it is non-zero index */ *pOutrow = (mng_uint8)(*pOutrow ^ 0x01); pOutrow += pData->iColinc; /* next pixel */ iM >>= 1; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_IDX1, MNG_LC_END); #endif return mng_store_idx1 (pData); } /* ************************************************************************** */ mng_retcode mng_delta_idx2 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; mng_uint32 iS; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_IDX2, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iDeltaBlocky * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + (pData->iDeltaBlockx * pBuf->iSamplesize); iM = 0; /* start at pixel 0 */ iB = 0; iS = 0; /* pixel replace ? */ if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xC0; iS = 6; } /* put the index */ *pOutrow = (mng_uint8)((iB & iM) >> iS); pOutrow += pData->iColinc; /* next pixel */ iM >>= 2; iS -= 2; } } else { /* pixel add ! */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xC0; iS = 6; } /* calculate the index */ *pOutrow = (mng_uint8)((*pOutrow + ((iB & iM) >> iS)) & 0x03); pOutrow += pData->iColinc; /* next pixel */ iM >>= 2; iS -= 2; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_IDX2, MNG_LC_END); #endif return mng_store_idx2 (pData); } /* ************************************************************************** */ mng_retcode mng_delta_idx4 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; mng_uint32 iS; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_IDX4, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iDeltaBlocky * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + (pData->iDeltaBlockx * pBuf->iSamplesize); iM = 0; /* start at pixel 0 */ iB = 0; iS = 0; /* pixel replace ? */ if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xF0; iS = 4; } /* put the index */ *pOutrow = (mng_uint8)((iB & iM) >> iS); pOutrow += pData->iColinc; /* next pixel */ iM >>= 4; iS -= 4; } } else { /* pixel add ! */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xF0; iS = 4; } /* calculate the index */ *pOutrow = (mng_uint8)((*pOutrow + ((iB & iM) >> iS)) & 0x0F); pOutrow += pData->iColinc; /* next pixel */ iM >>= 4; iS -= 4; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_IDX4, MNG_LC_END); #endif return mng_store_idx4 (pData); } #endif /* ************************************************************************** */ mng_retcode mng_delta_idx8 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_IDX8, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iDeltaBlocky * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + (pData->iDeltaBlockx * pBuf->iSamplesize); /* pixel replace ? */ if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* put in object buffer */ pOutrow += pData->iColinc; /* next pixel */ pWorkrow++; } } else { /* pixel add ! */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { /* add to object buffer */ *pOutrow = (mng_uint8)(*pOutrow + *pWorkrow); pOutrow += pData->iColinc; /* next pixel */ pWorkrow++; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_IDX8, MNG_LC_END); #endif return mng_store_idx8 (pData); } /* ************************************************************************** */ mng_retcode mng_delta_ga8 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_GA8, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iDeltaBlocky * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + (pData->iDeltaBlockx * pBuf->iSamplesize); /* pixel replace ? */ if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* put in object buffer */ *(pOutrow+1) = *(pWorkrow+1); /* next pixel */ pOutrow += (pData->iColinc << 1); pWorkrow += 2; } } else { /* pixel add ! */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { /* add to object buffer */ *pOutrow = (mng_uint8)(*pOutrow + *pWorkrow ); *(pOutrow+1) = (mng_uint8)(*(pOutrow+1) + *(pWorkrow+1)); /* next pixel */ pOutrow += (pData->iColinc << 1); pWorkrow += 2; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_GA8, MNG_LC_END); #endif return mng_store_ga8 (pData); } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_delta_ga16 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_GA16, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iDeltaBlocky * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + (pData->iDeltaBlockx * pBuf->iSamplesize); /* pixel replace ? */ if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* put in object buffer */ *(pOutrow+1) = *(pWorkrow+1); *(pOutrow+2) = *(pWorkrow+2); *(pOutrow+3) = *(pWorkrow+3); /* next pixel */ pOutrow += (pData->iColinc << 2); pWorkrow += 4; } } else { /* pixel add ! */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { /* add to object buffer */ mng_put_uint16 (pOutrow, (mng_uint16)(mng_get_uint16 (pOutrow ) + mng_get_uint16 (pWorkrow ) )); mng_put_uint16 (pOutrow+2, (mng_uint16)(mng_get_uint16 (pOutrow+2 ) + mng_get_uint16 (pWorkrow+2) )); /* next pixel */ pOutrow += (pData->iColinc << 2); pWorkrow += 4; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_GA16, MNG_LC_END); #endif return mng_store_ga16 (pData); } #endif /* ************************************************************************** */ mng_retcode mng_delta_rgba8 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGBA8, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iDeltaBlocky * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + (pData->iDeltaBlockx * pBuf->iSamplesize); /* pixel replace ? */ if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; /* put in object buffer */ *(pOutrow+1) = *(pWorkrow+1); *(pOutrow+2) = *(pWorkrow+2); *(pOutrow+3) = *(pWorkrow+3); /* next pixel */ pOutrow += (pData->iColinc << 2); pWorkrow += 4; } } else { /* pixel add ! */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { /* add to object buffer */ *pOutrow = (mng_uint8)(*pOutrow + *pWorkrow ); *(pOutrow+1) = (mng_uint8)(*(pOutrow+1) + *(pWorkrow+1)); *(pOutrow+2) = (mng_uint8)(*(pOutrow+2) + *(pWorkrow+2)); *(pOutrow+3) = (mng_uint8)(*(pOutrow+3) + *(pWorkrow+3)); /* next pixel */ pOutrow += (pData->iColinc << 2); pWorkrow += 4; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGBA8, MNG_LC_END); #endif return mng_store_rgba8 (pData); } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_delta_rgba16 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGBA16, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iDeltaBlocky * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + (pData->iDeltaBlockx * pBuf->iSamplesize); /* pixel replace ? */ if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { MNG_COPY (pOutrow, pWorkrow, 8); /* put in object buffer */ /* next pixel */ pOutrow += (pData->iColinc << 3); pWorkrow += 8; } } else { /* pixel add ! */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { /* add to object buffer */ mng_put_uint16 (pOutrow, (mng_uint16)(mng_get_uint16 (pOutrow ) + mng_get_uint16 (pWorkrow ) )); mng_put_uint16 (pOutrow+2, (mng_uint16)(mng_get_uint16 (pOutrow+2 ) + mng_get_uint16 (pWorkrow+2) )); mng_put_uint16 (pOutrow+4, (mng_uint16)(mng_get_uint16 (pOutrow+4 ) + mng_get_uint16 (pWorkrow+4) )); mng_put_uint16 (pOutrow+6, (mng_uint16)(mng_get_uint16 (pOutrow+6 ) + mng_get_uint16 (pWorkrow+6) )); /* next pixel */ pOutrow += (pData->iColinc << 3); pWorkrow += 8; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGBA16, MNG_LC_END); #endif return mng_store_rgba16 (pData); } #endif /* ************************************************************************** */ /* * * */ /* * Delta-image row routines - apply the source row onto the target * */ /* * * */ /* ************************************************************************** */ #ifndef MNG_NO_1_2_4BIT_SUPPORT mng_retcode mng_delta_g1_g1 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_G1_G1, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) { MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples); } else if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + (mng_uint16)*pWorkrow) & 0x01); pOutrow++; pWorkrow++; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_G1_G1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_delta_g2_g2 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_G2_G2, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) { MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples); } else if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + (mng_uint16)*pWorkrow) & 0x03); pOutrow++; pWorkrow++; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_G2_G2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_delta_g4_g4 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_G4_G4, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) { MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples); } else if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + (mng_uint16)*pWorkrow) & 0x0F); pOutrow++; pWorkrow++; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_G4_G4, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_delta_g8_g8 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_G8_G8, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) { MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples); } else if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + (mng_uint16)*pWorkrow) & 0xFF); pOutrow++; pWorkrow++; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_G8_G8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_delta_g16_g16 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_G16_G16, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) { MNG_COPY (pOutrow, pWorkrow, (pData->iRowsamples << 1)); } else if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { mng_put_uint16 (pOutrow, (mng_uint16)((mng_get_uint16 (pOutrow) + mng_get_uint16 (pWorkrow)) & 0xFFFF)); pOutrow += 2; pWorkrow += 2; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_G16_G16, MNG_LC_END); #endif return MNG_NOERROR; } #endif #endif /* MNG_NO_DELTA_PNG */ /* ************************************************************************** */ mng_retcode mng_delta_rgb8_rgb8 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGB8_RGB8, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) { MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples * 3); } else if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples*3; iX > 0; iX--) #else for (iX = 0; iX < (pData->iRowsamples * 3); iX++) #endif { *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + (mng_uint16)*pWorkrow) & 0xFF); pOutrow++; pWorkrow++; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGB8_RGB8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_delta_rgb16_rgb16 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGB16_RGB16, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) { MNG_COPY (pOutrow, pWorkrow, (pData->iRowsamples * 6)); } else if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { mng_put_uint16 (pOutrow, (mng_uint16)((mng_get_uint16 (pOutrow ) + mng_get_uint16 (pWorkrow )) & 0xFFFF)); mng_put_uint16 (pOutrow+2, (mng_uint16)((mng_get_uint16 (pOutrow+2) + mng_get_uint16 (pWorkrow+2)) & 0xFFFF)); mng_put_uint16 (pOutrow+4, (mng_uint16)((mng_get_uint16 (pOutrow+4) + mng_get_uint16 (pWorkrow+4)) & 0xFFFF)); pOutrow += 6; pWorkrow += 6; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGB16_RGB16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ #ifndef MNG_NO_DELTA_PNG mng_retcode mng_delta_ga8_ga8 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_GA8_GA8, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) { MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples << 1); } else if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) { #ifdef MNG_DECREMENT_LOOPS for (iX = (pData->iRowsamples<<1); iX > 0; iX--) #else for (iX = 0; iX < (pData->iRowsamples << 1); iX++) #endif { *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + (mng_uint16)*pWorkrow) & 0xFF); pOutrow++; pWorkrow++; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_GA8_GA8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_delta_ga8_g8 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_GA8_G8, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); if (pData->iDeltatype == MNG_DELTATYPE_BLOCKCOLORREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; pOutrow += 2; pWorkrow++; } } else if (pData->iDeltatype == MNG_DELTATYPE_BLOCKCOLORADD) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + (mng_uint16)*pWorkrow) & 0xFF); pOutrow += 2; pWorkrow++; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_GA8_G8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_delta_ga8_a8 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_GA8_A8, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + 1; if (pData->iDeltatype == MNG_DELTATYPE_BLOCKALPHAREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; pOutrow += 2; pWorkrow++; } } else if (pData->iDeltatype == MNG_DELTATYPE_BLOCKALPHAADD) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + (mng_uint16)*pWorkrow) & 0xFF); pOutrow += 2; pWorkrow++; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_GA8_A8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_delta_ga16_ga16 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_GA16_GA16, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) { MNG_COPY (pOutrow, pWorkrow, (pData->iRowsamples << 2)); } else if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { mng_put_uint16 (pOutrow, (mng_uint16)((mng_get_uint16 (pOutrow ) + mng_get_uint16 (pWorkrow )) & 0xFFFF)); mng_put_uint16 (pOutrow+2, (mng_uint16)((mng_get_uint16 (pOutrow+2) + mng_get_uint16 (pWorkrow+2)) & 0xFFFF)); pOutrow += 4; pWorkrow += 4; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_GA16_GA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_delta_ga16_g16 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_GA16_G16, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); if (pData->iDeltatype == MNG_DELTATYPE_BLOCKCOLORREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { mng_put_uint16 (pOutrow, mng_get_uint16 (pWorkrow)); pOutrow += 4; pWorkrow += 2; } } else if (pData->iDeltatype == MNG_DELTATYPE_BLOCKCOLORADD) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { mng_put_uint16 (pOutrow, (mng_uint16)((mng_get_uint16 (pOutrow) + mng_get_uint16 (pWorkrow)) & 0xFFFF)); pOutrow += 4; pWorkrow += 2; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_GA16_G16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_delta_ga16_a16 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_GA16_A16, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); if (pData->iDeltatype == MNG_DELTATYPE_BLOCKALPHAREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { mng_put_uint16 (pOutrow+2, mng_get_uint16 (pWorkrow)); pOutrow += 4; pWorkrow += 2; } } else if (pData->iDeltatype == MNG_DELTATYPE_BLOCKALPHAADD) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { mng_put_uint16 (pOutrow+2, (mng_uint16)((mng_get_uint16 (pOutrow+2) + mng_get_uint16 (pWorkrow)) & 0xFFFF)); pOutrow += 4; pWorkrow += 2; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_GA16_A16, MNG_LC_END); #endif return MNG_NOERROR; } #endif #endif /* MNG_NO_DELTA_PNG */ /* ************************************************************************** */ mng_retcode mng_delta_rgba8_rgba8 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGBA8_RGBA8, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) { MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples << 2); } else if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) { #ifdef MNG_DECREMENT_LOOPS for (iX = (pData->iRowsamples << 2); iX > 0; iX--) #else for (iX = 0; iX < (pData->iRowsamples << 2); iX++) #endif { *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + (mng_uint16)*pWorkrow) & 0xFF); pOutrow++; pWorkrow++; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGBA8_RGBA8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_DELTA_PNG mng_retcode mng_delta_rgba8_rgb8 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGBA8_RGB8, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); if (pData->iDeltatype == MNG_DELTATYPE_BLOCKCOLORREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; *(pOutrow+1) = *(pWorkrow+1); *(pOutrow+2) = *(pWorkrow+2); pOutrow += 4; pWorkrow += 3; } } else if (pData->iDeltatype == MNG_DELTATYPE_BLOCKCOLORADD) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + (mng_uint16)*pWorkrow ) & 0xFF); *(pOutrow+1) = (mng_uint8)(((mng_uint16)*(pOutrow+1) + (mng_uint16)*(pWorkrow+1)) & 0xFF); *(pOutrow+2) = (mng_uint8)(((mng_uint16)*(pOutrow+2) + (mng_uint16)*(pWorkrow+2)) & 0xFF); pOutrow += 4; pWorkrow += 3; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGBA8_RGB8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_delta_rgba8_a8 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGBA8_A8, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize) + 3; if (pData->iDeltatype == MNG_DELTATYPE_BLOCKALPHAREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = *pWorkrow; pOutrow += 4; pWorkrow++; } } else if (pData->iDeltatype == MNG_DELTATYPE_BLOCKALPHAADD) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + (mng_uint16)*pWorkrow) & 0xFF); pOutrow += 4; pWorkrow++; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGBA8_A8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_DELTA_PNG */ /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_delta_rgba16_rgba16 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGBA16_RGBA16, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) { MNG_COPY (pOutrow, pWorkrow, (pData->iRowsamples << 3)); } else if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { mng_put_uint16 (pOutrow, (mng_uint16)((mng_get_uint16 (pOutrow ) + mng_get_uint16 (pWorkrow )) & 0xFFFF)); mng_put_uint16 (pOutrow+2, (mng_uint16)((mng_get_uint16 (pOutrow+2) + mng_get_uint16 (pWorkrow+2)) & 0xFFFF)); mng_put_uint16 (pOutrow+4, (mng_uint16)((mng_get_uint16 (pOutrow+4) + mng_get_uint16 (pWorkrow+4)) & 0xFFFF)); mng_put_uint16 (pOutrow+6, (mng_uint16)((mng_get_uint16 (pOutrow+6) + mng_get_uint16 (pWorkrow+6)) & 0xFFFF)); pOutrow += 8; pWorkrow += 8; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGBA16_RGBA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ #ifndef MNG_NO_DELTA_PNG #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_delta_rgba16_rgb16 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGBA16_RGB16, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); if (pData->iDeltatype == MNG_DELTATYPE_BLOCKCOLORREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { mng_put_uint16 (pOutrow, mng_get_uint16 (pWorkrow )); mng_put_uint16 (pOutrow+2, mng_get_uint16 (pWorkrow+2)); mng_put_uint16 (pOutrow+4, mng_get_uint16 (pWorkrow+4)); pOutrow += 8; pWorkrow += 6; } } else if (pData->iDeltatype == MNG_DELTATYPE_BLOCKCOLORADD) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { mng_put_uint16 (pOutrow, (mng_uint16)((mng_get_uint16 (pOutrow ) + mng_get_uint16 (pWorkrow )) & 0xFFFF)); mng_put_uint16 (pOutrow+2, (mng_uint16)((mng_get_uint16 (pOutrow+2) + mng_get_uint16 (pWorkrow+2)) & 0xFFFF)); mng_put_uint16 (pOutrow+4, (mng_uint16)((mng_get_uint16 (pOutrow+4) + mng_get_uint16 (pWorkrow+4)) & 0xFFFF)); pOutrow += 8; pWorkrow += 6; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGBA16_RGB16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_delta_rgba16_a16 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGBA16_A16, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); if (pData->iDeltatype == MNG_DELTATYPE_BLOCKALPHAREPLACE) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { mng_put_uint16 (pOutrow+6, mng_get_uint16 (pWorkrow)); pOutrow += 8; pWorkrow += 2; } } else if (pData->iDeltatype == MNG_DELTATYPE_BLOCKALPHAADD) { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { mng_put_uint16 (pOutrow+6, (mng_uint16)((mng_get_uint16 (pOutrow+6) + mng_get_uint16 (pWorkrow)) & 0xFFFF)); pOutrow += 8; pWorkrow += 2; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DELTA_RGBA16_A16, MNG_LC_END); #endif return MNG_NOERROR; } #endif #endif /* MNG_NO_DELTA_PNG */ /* ************************************************************************** */ /* * * */ /* * Delta-image row routines - scale the delta to bitdepth of target * */ /* * * */ /* ************************************************************************** */ #ifndef MNG_NO_DELTA_PNG #ifndef MNG_NO_1_2_4BIT_SUPPORT mng_retcode mng_scale_g1_g2 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G1_G2, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pWorkrow = (mng_uint8)(*pWorkrow << 1); pWorkrow++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G1_G2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_scale_g1_g4 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G1_G4, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pWorkrow = (mng_uint8)(*pWorkrow << 3); pWorkrow++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G1_G4, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_scale_g1_g8 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G1_G8, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pWorkrow = (mng_uint8)(*pWorkrow << 7); pWorkrow++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G1_G8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_scale_g1_g16 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_uint8p pOutrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G1_G16, MNG_LC_START); #endif pWorkrow = pWorkrow + (pData->iRowsamples - 1); pOutrow = pOutrow + ((pData->iRowsamples - 1) << 1); /* pWorkrow = (mng_uint8p)((mng_uint32)pWorkrow + pData->iRowsamples - 1); */ /* pOutrow = (mng_uint8p)((mng_uint32)pOutrow + ((pData->iRowsamples - 1) << 1)); */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *(pOutrow+1) = 0; *pOutrow = (mng_uint8)(*pWorkrow << 7); pWorkrow--; pOutrow -= 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G1_G16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_scale_g2_g4 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G2_G4, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pWorkrow = (mng_uint8)(*pWorkrow << 2); pWorkrow++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G2_G4, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_scale_g2_g8 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G2_G8, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pWorkrow = (mng_uint8)(*pWorkrow << 6); pWorkrow++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G2_G8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_scale_g2_g16 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_uint8p pOutrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G2_G16, MNG_LC_START); #endif pWorkrow = pWorkrow + (pData->iRowsamples - 1); pOutrow = pOutrow + ((pData->iRowsamples - 1) << 1); /* pWorkrow = (mng_uint8p)((mng_uint32)pWorkrow + pData->iRowsamples - 1); */ /* pOutrow = (mng_uint8p)((mng_uint32)pOutrow + ((pData->iRowsamples - 1) << 1)); */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *(pOutrow+1) = 0; *pOutrow = (mng_uint8)(*pWorkrow << 6); pWorkrow--; pOutrow -= 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G2_G16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_scale_g4_g8 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G4_G8, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pWorkrow = (mng_uint8)(*pWorkrow << 4); pWorkrow++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G4_G8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_scale_g4_g16 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_uint8p pOutrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G4_G16, MNG_LC_START); #endif pWorkrow = pWorkrow + (pData->iRowsamples - 1); pOutrow = pOutrow + ((pData->iRowsamples - 1) << 1); /* pWorkrow = (mng_uint8p)((mng_uint32)pWorkrow + pData->iRowsamples - 1); */ /* pOutrow = (mng_uint8p)((mng_uint32)pOutrow + ((pData->iRowsamples - 1) << 1)); */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *(pOutrow+1) = 0; *pOutrow = (mng_uint8)(*pWorkrow << 4); pWorkrow--; pOutrow -= 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G4_G16, MNG_LC_END); #endif return MNG_NOERROR; } #endif #endif /* MNG_NO_1_2_4BIT_SUPPORT */ /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_scale_g8_g16 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_uint8p pOutrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G8_G16, MNG_LC_START); #endif pWorkrow = pWorkrow + (pData->iRowsamples - 1); pOutrow = pOutrow + ((pData->iRowsamples - 1) << 1); /* pWorkrow = (mng_uint8p)((mng_uint32)pWorkrow + pData->iRowsamples - 1); */ /* pOutrow = (mng_uint8p)((mng_uint32)pOutrow + ((pData->iRowsamples - 1) << 1)); */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *(pOutrow+1) = 0; *pOutrow = *pWorkrow; pWorkrow--; pOutrow -= 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G8_G16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_scale_ga8_ga16 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_uint8p pOutrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_GA8_GA16, MNG_LC_START); #endif pWorkrow = pWorkrow + ((pData->iRowsamples - 1) << 1); pOutrow = pOutrow + ((pData->iRowsamples - 1) << 2); /* pWorkrow = (mng_uint8p)((mng_uint32)pWorkrow + ((pData->iRowsamples - 1) << 1)); */ /* pOutrow = (mng_uint8p)((mng_uint32)pOutrow + ((pData->iRowsamples - 1) << 2)); */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *(pOutrow+3) = 0; *(pOutrow+2) = *(pWorkrow+1); *(pOutrow+1) = 0; *pOutrow = *pWorkrow; pWorkrow -= 2; pOutrow -= 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_GA8_GA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_scale_rgb8_rgb16 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_uint8p pOutrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_RGB8_RGB16, MNG_LC_START); #endif pWorkrow = pWorkrow + (3 * (pData->iRowsamples - 1)); pOutrow = pOutrow + (6 * (pData->iRowsamples - 1)); /* pWorkrow = (mng_uint8p)((mng_uint32)pWorkrow + 3 * (pData->iRowsamples - 1)); */ /* pOutrow = (mng_uint8p)((mng_uint32)pOutrow + 6 * (pData->iRowsamples - 1)); */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *(pOutrow+5) = 0; *(pOutrow+4) = *(pWorkrow+2); *(pOutrow+3) = 0; *(pOutrow+2) = *(pWorkrow+1); *(pOutrow+1) = 0; *pOutrow = *pWorkrow; pWorkrow -= 3; pOutrow -= 6; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_RGB8_RGB16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_scale_rgba8_rgba16 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_uint8p pOutrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_RGBA8_RGBA16, MNG_LC_START); #endif pWorkrow = pWorkrow + ((pData->iRowsamples - 1) << 2); pOutrow = pOutrow + ((pData->iRowsamples - 1) << 3); /* pWorkrow = (mng_uint8p)((mng_uint32)pWorkrow + ((pData->iRowsamples - 1) << 2)); */ /* pOutrow = (mng_uint8p)((mng_uint32)pOutrow + ((pData->iRowsamples - 1) << 3)); */ #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *(pOutrow+7) = 0; *(pOutrow+6) = *(pWorkrow+3); *(pOutrow+5) = 0; *(pOutrow+4) = *(pWorkrow+2); *(pOutrow+3) = 0; *(pOutrow+2) = *(pWorkrow+1); *(pOutrow+1) = 0; *pOutrow = *pWorkrow; pWorkrow -= 4; pOutrow -= 8; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_RGBA8_RGBA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ #ifndef MNG_NO_1_2_4BIT_SUPPORT mng_retcode mng_scale_g2_g1 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G2_G1, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pWorkrow = (mng_uint8)(*pWorkrow >> 1); pWorkrow++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G2_G1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_scale_g4_g1 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G4_G1, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pWorkrow = (mng_uint8)(*pWorkrow >> 3); pWorkrow++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G4_G1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_scale_g8_g1 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G8_G1, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pWorkrow = (mng_uint8)(*pWorkrow >> 7); pWorkrow++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G8_G1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_scale_g16_g1 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_uint8p pOutrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G16_G1, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 15); pOutrow++; pWorkrow += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G16_G1, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_scale_g4_g2 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G4_G2, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pWorkrow = (mng_uint8)(*pWorkrow >> 2); pWorkrow++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G4_G2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_scale_g8_g2 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G8_G2, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pWorkrow = (mng_uint8)(*pWorkrow >> 6); pWorkrow++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G8_G2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_scale_g16_g2 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_uint8p pOutrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G16_G2, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 14); pOutrow++; pWorkrow += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G16_G2, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_scale_g8_g4 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G8_G4, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pWorkrow = (mng_uint8)(*pWorkrow >> 4); pWorkrow++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G8_G4, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_scale_g16_g4 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_uint8p pOutrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G16_G4, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 12); pOutrow++; pWorkrow += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G16_G4, MNG_LC_END); #endif return MNG_NOERROR; } #endif #endif /* NO_1_2_4BIT_SUPPORT */ /* ************************************************************************** */ mng_retcode mng_scale_g16_g8 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_uint8p pOutrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G16_G8, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 8); pOutrow++; pWorkrow += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_G16_G8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_scale_ga16_ga8 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_uint8p pOutrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_GA16_GA8, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 8); pOutrow++; pWorkrow += 2; *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 8); pOutrow++; pWorkrow += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_GA16_GA8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_scale_rgb16_rgb8 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_uint8p pOutrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_RGB16_RGB8, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 8); pOutrow++; pWorkrow += 2; *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 8); pOutrow++; pWorkrow += 2; *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 8); pOutrow++; pWorkrow += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_RGB16_RGB8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_scale_rgba16_rgba8 (mng_datap pData) { mng_uint8p pWorkrow = pData->pRGBArow; mng_uint8p pOutrow = pData->pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_RGBA16_RGBA8, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 8); pOutrow++; pWorkrow += 2; *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 8); pOutrow++; pWorkrow += 2; *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 8); pOutrow++; pWorkrow += 2; *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 8); pOutrow++; pWorkrow += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_SCALE_RGBA16_RGBA8, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ /* * * */ /* * Delta-image bit routines - promote bit_depth * */ /* * * */ /* ************************************************************************** */ #ifndef MNG_NO_1_2_4BIT_SUPPORT mng_uint8 mng_promote_replicate_1_2 (mng_uint8 iB) { return (mng_uint8)((iB << 1) | iB); } /* ************************************************************************** */ mng_uint8 mng_promote_replicate_1_4 (mng_uint8 iB) { iB = (mng_uint8)((iB << 1) + iB); return (mng_uint8)((iB << 2) + iB); } /* ************************************************************************** */ mng_uint8 mng_promote_replicate_1_8 (mng_uint8 iB) { iB = (mng_uint8)((iB << 1) + iB); iB = (mng_uint8)((iB << 2) + iB); return (mng_uint8)((iB << 4) + iB); } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_uint16 mng_promote_replicate_1_16 (mng_uint8 iB) { iB = (mng_uint8)((iB << 1) + iB); iB = (mng_uint8)((iB << 2) + iB); iB = (mng_uint8)((iB << 4) + iB); return (mng_uint16)(((mng_uint16)iB << 8) + (mng_uint16)iB); } #endif /* ************************************************************************** */ mng_uint8 mng_promote_replicate_2_4 (mng_uint8 iB) { return (mng_uint8)((iB << 2) + iB); } /* ************************************************************************** */ mng_uint8 mng_promote_replicate_2_8 (mng_uint8 iB) { iB = (mng_uint8)((iB << 2) + iB); return (mng_uint8)((iB << 4) + iB); } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_uint16 mng_promote_replicate_2_16 (mng_uint8 iB) { iB = (mng_uint8)((iB << 2) + iB); iB = (mng_uint8)((iB << 4) + iB); return (mng_uint16)(((mng_uint16)iB << 8) + (mng_uint16)iB); } #endif /* ************************************************************************** */ mng_uint8 mng_promote_replicate_4_8 (mng_uint8 iB) { return (mng_uint8)((iB << 4) + iB); } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_uint16 mng_promote_replicate_4_16 (mng_uint8 iB) { iB = (mng_uint8)((iB << 4) + iB); return (mng_uint16)(((mng_uint16)iB << 8) + (mng_uint16)iB); } #endif #endif /* NO_1_2_4BIT_SUPPORT */ /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_uint16 mng_promote_replicate_8_16 (mng_uint8 iB) { return (mng_uint16)(((mng_uint16)iB << 8) + (mng_uint16)iB); } #endif /* ************************************************************************** */ #if !defined(MNG_NO_DELTA_PNG) #ifndef MNG_NO_1_2_4BIT_SUPPORT mng_uint8 mng_promote_zerofill_1_2 (mng_uint8 iB) { return (mng_uint8)(iB << 1); } /* ************************************************************************** */ mng_uint8 mng_promote_zerofill_1_4 (mng_uint8 iB) { return (mng_uint8)(iB << 3); } /* ************************************************************************** */ mng_uint8 mng_promote_zerofill_1_8 (mng_uint8 iB) { return (mng_uint8)(iB << 7); } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_uint16 mng_promote_zerofill_1_16 (mng_uint8 iB) { return (mng_uint16)((mng_uint16)iB << 15); } #endif /* ************************************************************************** */ mng_uint8 mng_promote_zerofill_2_4 (mng_uint8 iB) { return (mng_uint8)(iB << 2); } /* ************************************************************************** */ mng_uint8 mng_promote_zerofill_2_8 (mng_uint8 iB) { return (mng_uint8)(iB << 6); } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_uint16 mng_promote_zerofill_2_16 (mng_uint8 iB) { return (mng_uint16)((mng_uint16)iB << 14); } #endif /* ************************************************************************** */ mng_uint8 mng_promote_zerofill_4_8 (mng_uint8 iB) { return (mng_uint8)(iB << 4); } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_uint16 mng_promote_zerofill_4_16 (mng_uint8 iB) { return (mng_uint16)((mng_uint16)iB << 12); } #endif #endif /* MNG_NO_1_2_4BIT_SUPPORT */ /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_uint16 mng_promote_zerofill_8_16 (mng_uint8 iB) { return (mng_uint16)((mng_uint16)iB << 8); } #endif #endif /* MNG_NO_DELTA_PNG */ /* ************************************************************************** */ /* * * */ /* * Delta-image row routines - promote color_type * */ /* * * */ /* ************************************************************************** */ #if !defined(MNG_NO_DELTA_PNG) || !defined(MNG_SKIPCHUNK_PAST) || !defined(MNG_SKIPCHUNK_MAGN) mng_retcode mng_promote_g8_g8 (mng_datap pData) { mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; mng_uint32 iX; mng_uint8 iB; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G8_G8, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iB = *pSrcline; if (pData->fPromBitdepth) /* bitdepth promoted ? */ iB = ((mng_bitdepth_8)pData->fPromBitdepth) (iB); *pDstline = iB; pSrcline++; pDstline++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G8_G8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_promote_g8_g16 (mng_datap pData) { mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; mng_uint32 iX; mng_uint16 iW; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G8_G16, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iW = ((mng_bitdepth_16)pData->fPromBitdepth) (*pSrcline); *pDstline = (mng_uint8)(iW >> 8); *(pDstline+1) = (mng_uint8)(iW && 0xFF); pSrcline++; pDstline += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G8_G16, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_promote_g16_g16 (mng_datap pData) { mng_uint16p pSrcline = (mng_uint16p)pData->pPromSrc; mng_uint16p pDstline = (mng_uint16p)pData->pPromDst; mng_uint32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G16_G16, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { *pDstline = *pSrcline; pSrcline++; pDstline++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G16_G16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_promote_g8_ga8 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; mng_uint32 iX; mng_uint8 iB; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G8_GA8, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iB = *pSrcline; /* no cheap transparency ? */ if ((!pBuf->bHasTRNS) || ((mng_uint16)iB != pBuf->iTRNSgray)) *(pDstline+1) = 0xFF; if (pData->fPromBitdepth) /* bitdepth promoted ? */ iB = ((mng_bitdepth_8)pData->fPromBitdepth) (iB); *pDstline = iB; pSrcline++; pDstline += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G8_GA8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_promote_g8_ga16 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; mng_uint32 iX; mng_uint8 iB; mng_uint16 iW; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G8_GA16, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iB = *pSrcline; /* no cheap transparency ? */ if ((!pBuf->bHasTRNS) || ((mng_uint16)iB != pBuf->iTRNSgray)) { *(pDstline+2) = 0xFF; *(pDstline+3) = 0xFF; } iW = ((mng_bitdepth_16)pData->fPromBitdepth) (iB); *pDstline = (mng_uint8)(iW >> 8); *(pDstline+1) = (mng_uint8)(iW && 0xFF); pSrcline++; pDstline += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G8_GA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_promote_g16_ga16 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; mng_uint16p pSrcline = (mng_uint16p)pData->pPromSrc; mng_uint16p pDstline = (mng_uint16p)pData->pPromDst; mng_uint32 iX; mng_uint16 iW; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G16_GA16, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iW = *pSrcline; /* no cheap transparency ? */ if ((!pBuf->bHasTRNS) || ((mng_uint16)iW != pBuf->iTRNSgray)) *(pDstline+1) = 0xFFFF; *pDstline = iW; pSrcline++; pDstline += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G16_GA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_promote_g8_rgb8 (mng_datap pData) { mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; mng_uint32 iX; mng_uint8 iB; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G8_RGB8, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iB = *pSrcline; if (pData->fPromBitdepth) /* bitdepth promoted ? */ iB = ((mng_bitdepth_8)pData->fPromBitdepth) (iB); *pDstline = iB; *(pDstline+1) = iB; *(pDstline+2) = iB; pSrcline++; pDstline += 3; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G8_RGB8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_promote_g8_rgb16 (mng_datap pData) { mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; mng_uint32 iX; mng_uint8 iB; mng_uint16 iW; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G8_RGB16, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iB = *pSrcline; iW = ((mng_bitdepth_16)pData->fPromBitdepth) (iB); iB = (mng_uint8)(iW >> 8); *pDstline = iB; *(pDstline+2) = iB; *(pDstline+4) = iB; iB = (mng_uint8)(iW && 0xFF); *(pDstline+1) = iB; *(pDstline+3) = iB; *(pDstline+5) = iB; pSrcline++; pDstline += 6; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G8_RGB16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_promote_g16_rgb16 (mng_datap pData) { mng_uint16p pSrcline = (mng_uint16p)pData->pPromSrc; mng_uint16p pDstline = (mng_uint16p)pData->pPromDst; mng_uint32 iX; mng_uint16 iW; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G16_RGB16, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iW = *pSrcline; *pDstline = iW; *(pDstline+1) = iW; *(pDstline+2) = iW; pSrcline++; pDstline += 3; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G16_RGB16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_promote_g8_rgba8 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; mng_uint32 iX; mng_uint8 iB; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G8_RGBA8, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iB = *pSrcline; /* no cheap transparency ? */ if ((!pBuf->bHasTRNS) || ((mng_uint16)iB != pBuf->iTRNSgray)) *(pDstline+3) = 0xFF; if (pData->fPromBitdepth) /* bitdepth promoted ? */ iB = ((mng_bitdepth_8)pData->fPromBitdepth) (iB); *pDstline = iB; *(pDstline+1) = iB; *(pDstline+2) = iB; pSrcline++; pDstline += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G8_RGBA8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_promote_g8_rgba16 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; mng_uint32 iX; mng_uint8 iB; mng_uint16 iW; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G8_RGBA16, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iB = *pSrcline; /* no cheap transparency ? */ if ((!pBuf->bHasTRNS) || ((mng_uint16)iB != pBuf->iTRNSgray)) { *(pDstline+6) = 0xFF; *(pDstline+7) = 0xFF; } iW = ((mng_bitdepth_16)pData->fPromBitdepth) (iB); iB = (mng_uint8)(iW >> 8); *pDstline = iB; *(pDstline+2) = iB; *(pDstline+4) = iB; iB = (mng_uint8)(iW && 0xFF); *(pDstline+1) = iB; *(pDstline+3) = iB; *(pDstline+5) = iB;; pSrcline++; pDstline += 8; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G8_RGBA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_promote_g16_rgba16 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; mng_uint16p pSrcline = (mng_uint16p)pData->pPromSrc; mng_uint16p pDstline = (mng_uint16p)pData->pPromDst; mng_uint32 iX; mng_uint16 iW; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G16_RGBA16, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iW = *pSrcline; /* no cheap transparency ? */ if ((!pBuf->bHasTRNS) || (iW != pBuf->iTRNSgray)) *(pDstline+3) = 0xFFFF; *pDstline = iW; *(pDstline+1) = iW; *(pDstline+2) = iW; pSrcline++; pDstline += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_G16_RGBA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_promote_ga8_ga16 (mng_datap pData) { mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; mng_uint32 iX; mng_uint16 iW; mng_uint16 iA; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_GA8_GA16, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iW = ((mng_bitdepth_16)pData->fPromBitdepth) (*pSrcline); iA = ((mng_bitdepth_16)pData->fPromBitdepth) (*(pSrcline+1)); *pDstline = (mng_uint8)(iW >> 8); *(pDstline+1) = (mng_uint8)(iW && 0xFF); *(pDstline+2) = (mng_uint8)(iA >> 8); *(pDstline+3) = (mng_uint8)(iA && 0xFF); pSrcline += 2; pDstline += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_GA8_GA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_promote_ga8_rgba8 (mng_datap pData) { mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; mng_uint32 iX; mng_uint8 iB; mng_uint8 iA; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_GA8_RGBA8, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iB = *pSrcline; iA = *(pSrcline+1); *pDstline = iB; *(pDstline+1) = iB; *(pDstline+2) = iB; *(pDstline+3) = iA; pSrcline += 2; pDstline += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_GA8_RGBA8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_promote_ga8_rgba16 (mng_datap pData) { mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; mng_uint32 iX; mng_uint8 iB; mng_uint16 iW; mng_uint16 iA; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_GA8_RGBA16, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iW = ((mng_bitdepth_16)pData->fPromBitdepth) (*pSrcline); iA = ((mng_bitdepth_16)pData->fPromBitdepth) (*(pSrcline+1)); iB = (mng_uint8)(iW >> 8); *pDstline = iB; *(pDstline+2) = iB; *(pDstline+4) = iB; iB = (mng_uint8)(iW && 0xFF); *(pDstline+1) = iB; *(pDstline+3) = iB; *(pDstline+5) = iB; *(pDstline+6) = (mng_uint8)(iA >> 8); *(pDstline+7) = (mng_uint8)(iA && 0xFF); pSrcline += 2; pDstline += 8; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_GA8_RGBA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_promote_ga16_rgba16 (mng_datap pData) { mng_uint16p pSrcline = (mng_uint16p)pData->pPromSrc; mng_uint16p pDstline = (mng_uint16p)pData->pPromDst; mng_uint32 iX; mng_uint16 iW; mng_uint16 iA; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_GA16_RGBA16, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iW = *pSrcline; iA = *(pSrcline+1); *pDstline = iW; *(pDstline+1) = iW; *(pDstline+2) = iW; *(pDstline+3) = iA; pSrcline += 2; pDstline += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_GA16_RGBA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_promote_rgb8_rgb16 (mng_datap pData) { mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; mng_uint32 iX; mng_uint16 iR; mng_uint16 iG; mng_uint16 iB; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_RGB8_RGB16, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iR = ((mng_bitdepth_16)pData->fPromBitdepth) (*pSrcline); iG = ((mng_bitdepth_16)pData->fPromBitdepth) (*(pSrcline+1)); iB = ((mng_bitdepth_16)pData->fPromBitdepth) (*(pSrcline+2)); *pDstline = (mng_uint8)(iR >> 8); *(pDstline+1) = (mng_uint8)(iR && 0xFF); *(pDstline+2) = (mng_uint8)(iG >> 8); *(pDstline+3) = (mng_uint8)(iG && 0xFF); *(pDstline+4) = (mng_uint8)(iB >> 8); *(pDstline+5) = (mng_uint8)(iB && 0xFF); pSrcline += 3; pDstline += 6; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_RGB8_RGB16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_promote_rgb8_rgba8 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; mng_uint32 iX; mng_uint8 iR; mng_uint8 iG; mng_uint8 iB; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_RGB8_RGBA8, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iR = *pSrcline; iG = *(pSrcline+1); iB = *(pSrcline+2); /* no cheap transparency ? */ if ((!pBuf->bHasTRNS) || ((mng_uint16)iR != pBuf->iTRNSred) || ((mng_uint16)iG != pBuf->iTRNSgreen) || ((mng_uint16)iB != pBuf->iTRNSblue)) *(pDstline+3) = 0xFF; *pDstline = iR; *(pDstline+1) = iG; *(pDstline+2) = iB; pSrcline += 3; pDstline += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_RGB8_RGBA8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_promote_rgb8_rgba16 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; mng_uint32 iX; mng_uint8 iR; mng_uint8 iG; mng_uint8 iB; mng_uint16 iRw; mng_uint16 iGw; mng_uint16 iBw; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_RGB8_RGBA16, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iR = *pSrcline; iG = *(pSrcline+1); iB = *(pSrcline+2); /* no cheap transparency ? */ if ((!pBuf->bHasTRNS) || ((mng_uint16)iR != pBuf->iTRNSred) || ((mng_uint16)iG != pBuf->iTRNSgreen) || ((mng_uint16)iB != pBuf->iTRNSblue)) { *(pDstline+6) = 0xFF; *(pDstline+7) = 0xFF; } iRw = ((mng_bitdepth_16)pData->fPromBitdepth) (iR); iGw = ((mng_bitdepth_16)pData->fPromBitdepth) (iG); iBw = ((mng_bitdepth_16)pData->fPromBitdepth) (iB); *pDstline = (mng_uint8)(iRw >> 8); *(pDstline+1) = (mng_uint8)(iRw && 0xFF); *(pDstline+2) = (mng_uint8)(iGw >> 8); *(pDstline+3) = (mng_uint8)(iGw && 0xFF); *(pDstline+4) = (mng_uint8)(iBw >> 8); *(pDstline+5) = (mng_uint8)(iBw && 0xFF); pSrcline += 3; pDstline += 8; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_RGB8_RGBA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_promote_rgb16_rgba16 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; mng_uint16p pSrcline = (mng_uint16p)pData->pPromSrc; mng_uint16p pDstline = (mng_uint16p)pData->pPromDst; mng_uint32 iX; mng_uint16 iR; mng_uint16 iG; mng_uint16 iB; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_RGB16_RGBA16, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iR = *pSrcline; iG = *(pSrcline+1); iB = *(pSrcline+2); /* no cheap transparency ? */ if ((!pBuf->bHasTRNS) || (iR != pBuf->iTRNSred) || (iG != pBuf->iTRNSgreen) || (iB != pBuf->iTRNSblue)) *(pDstline+3) = 0xFFFF; *pDstline = iR; *(pDstline+1) = iG; *(pDstline+2) = iB; pSrcline += 3; pDstline += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_RGB16_RGBA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_promote_idx8_rgb8 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; mng_uint32 iX; mng_uint8 iB; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_IDX8_RGB8, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iB = *pSrcline; if ((mng_uint32)iB < pBuf->iPLTEcount) { *pDstline = pBuf->aPLTEentries [iB].iRed; *(pDstline+1) = pBuf->aPLTEentries [iB].iGreen; *(pDstline+2) = pBuf->aPLTEentries [iB].iBlue; } pSrcline++; pDstline += 3; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_IDX8_RGB8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_promote_idx8_rgb16 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; mng_uint32 iX; mng_uint8 iN; mng_uint16 iR; mng_uint16 iG; mng_uint16 iB; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_IDX8_RGB16, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iN = *pSrcline; if ((mng_uint32)iN < pBuf->iPLTEcount) { iR = ((mng_bitdepth_16)pData->fPromBitdepth) (pBuf->aPLTEentries [iN].iRed); iG = ((mng_bitdepth_16)pData->fPromBitdepth) (pBuf->aPLTEentries [iN].iGreen); iB = ((mng_bitdepth_16)pData->fPromBitdepth) (pBuf->aPLTEentries [iN].iBlue); *pDstline = (mng_uint8)(iR >> 8); *(pDstline+1) = (mng_uint8)(iR && 0xFF); *(pDstline+2) = (mng_uint8)(iG >> 8); *(pDstline+3) = (mng_uint8)(iG && 0xFF); *(pDstline+4) = (mng_uint8)(iB >> 8); *(pDstline+5) = (mng_uint8)(iB && 0xFF); } pSrcline++; pDstline += 6; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_IDX8_RGB16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_promote_idx8_rgba8 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; mng_uint32 iX; mng_uint8 iB; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_IDX8_RGBA8, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iB = *pSrcline; if ((mng_uint32)iB < pBuf->iPLTEcount) { *pDstline = pBuf->aPLTEentries [iB].iRed; *(pDstline+1) = pBuf->aPLTEentries [iB].iGreen; *(pDstline+2) = pBuf->aPLTEentries [iB].iBlue; if ((pBuf->bHasTRNS) && ((mng_uint32)iB < pBuf->iTRNScount)) *(pDstline+3) = pBuf->aTRNSentries [iB]; else *(pDstline+3) = 0xFF; } pSrcline++; pDstline += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_IDX8_RGBA8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_promote_idx8_rgba16 (mng_datap pData) { mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; mng_uint32 iX; mng_uint8 iN; mng_uint16 iR; mng_uint16 iG; mng_uint16 iB; mng_uint16 iA; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_IDX8_RGBA16, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iN = *pSrcline; if ((mng_uint32)iN < pBuf->iPLTEcount) { iR = ((mng_bitdepth_16)pData->fPromBitdepth) (pBuf->aPLTEentries [iN].iRed); iG = ((mng_bitdepth_16)pData->fPromBitdepth) (pBuf->aPLTEentries [iN].iGreen); iB = ((mng_bitdepth_16)pData->fPromBitdepth) (pBuf->aPLTEentries [iN].iBlue); if ((pBuf->bHasTRNS) && ((mng_uint32)iN < pBuf->iTRNScount)) iA = ((mng_bitdepth_16)pData->fPromBitdepth) (pBuf->aTRNSentries [iN]); else iA = 0xFFFF; *pDstline = (mng_uint8)(iR >> 8); *(pDstline+1) = (mng_uint8)(iR && 0xFF); *(pDstline+2) = (mng_uint8)(iG >> 8); *(pDstline+3) = (mng_uint8)(iG && 0xFF); *(pDstline+4) = (mng_uint8)(iB >> 8); *(pDstline+5) = (mng_uint8)(iB && 0xFF); *(pDstline+6) = (mng_uint8)(iA >> 8); *(pDstline+7) = (mng_uint8)(iA && 0xFF); } pSrcline++; pDstline += 8; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_IDX8_RGBA16, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_promote_rgba8_rgba16 (mng_datap pData) { mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; mng_uint32 iX; mng_uint16 iR; mng_uint16 iG; mng_uint16 iB; mng_uint16 iA; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_RGBA8_RGBA16, MNG_LC_START); #endif #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPromWidth; iX > 0; iX--) #else for (iX = 0; iX < pData->iPromWidth; iX++) #endif { iR = ((mng_bitdepth_16)pData->fPromBitdepth) (*pSrcline); iG = ((mng_bitdepth_16)pData->fPromBitdepth) (*(pSrcline+1)); iB = ((mng_bitdepth_16)pData->fPromBitdepth) (*(pSrcline+2)); iA = ((mng_bitdepth_16)pData->fPromBitdepth) (*(pSrcline+3)); *pDstline = (mng_uint8)(iR >> 8); *(pDstline+1) = (mng_uint8)(iR && 0xFF); *(pDstline+2) = (mng_uint8)(iG >> 8); *(pDstline+3) = (mng_uint8)(iG && 0xFF); *(pDstline+4) = (mng_uint8)(iB >> 8); *(pDstline+5) = (mng_uint8)(iB && 0xFF); *(pDstline+6) = (mng_uint8)(iA >> 8); *(pDstline+7) = (mng_uint8)(iA && 0xFF); pSrcline += 4; pDstline += 8; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROMOTE_RGBA8_RGBA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif #endif /* !defined(MNG_NO_DELTA_PNG) || !defined(MNG_SKIPCHUNK_PAST) || !defined(MNG_SKIPCHUNK_MAGN) */ /* ************************************************************************** */ /* * * */ /* * Row processing routines - convert uncompressed data from zlib to * */ /* * managable row-data which serves as input to the color-management * */ /* * routines * */ /* * * */ /* ************************************************************************** */ #ifndef MNG_NO_1_2_4BIT_SUPPORT mng_retcode mng_process_g1 (mng_datap pData) { mng_uint8p pWorkrow; mng_uint8p pRGBArow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_G1, MNG_LC_START); #endif if (!pBuf) /* no object? then use obj 0 */ pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pRGBArow = pData->pRGBArow; iM = 0; /* start at pixel 0 */ iB = 0; if (pBuf->bHasTRNS) /* tRNS encountered ? */ { if (pBuf->iTRNSgray) /* white transparent ? */ { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0x80; } if (iB & iM) /* is it white ? */ /* transparent ! */ mng_put_uint32 (pRGBArow, 0x00000000); else /* opaque black */ mng_put_uint32 (pRGBArow, 0x000000FF); pRGBArow += 4; /* next pixel */ iM >>= 1; } } else /* black transparent */ { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0x80; } if (iB & iM) /* is it white ? */ /* opaque white */ mng_put_uint32 (pRGBArow, 0xFFFFFFFF); else /* transparent */ mng_put_uint32 (pRGBArow, 0x00000000); pRGBArow += 4; /* next pixel */ iM >>= 1; } } pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ } else /* no transparency */ { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0x80; } if (iB & iM) /* is it white ? */ /* opaque white */ mng_put_uint32 (pRGBArow, 0xFFFFFFFF); else /* opaque black */ mng_put_uint32 (pRGBArow, 0x000000FF); pRGBArow += 4; /* next pixel */ iM >>= 1; } pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_G1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_process_g2 (mng_datap pData) { mng_uint8p pWorkrow; mng_uint8p pRGBArow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; mng_uint32 iS; mng_uint8 iQ; mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; #ifdef MNG_OPTIMIZE_FOOTPRINT_SWITCH const mng_uint32 level[4] = { 0x000000FF, 0x555555FF, 0xAAAAAAFF, 0xFFFFFFFF}; #endif #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_G2, MNG_LC_START); #endif if (!pBuf) /* no object? then use obj 0 */ pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pRGBArow = pData->pRGBArow; iM = 0; /* start at pixel 0 */ iB = 0; iS = 0; if (pBuf->bHasTRNS) /* tRNS encountered ? */ { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xC0; iS = 6; } /* determine gray level */ iQ = (mng_uint8)((iB & iM) >> iS); if (iQ == pBuf->iTRNSgray) /* transparent ? */ mng_put_uint32 (pRGBArow, 0x00000000); else { #ifdef MNG_OPTIMIZE_FOOTPRINT_SWITCH mng_put_uint32 (pRGBArow, level[iQ]); #else switch (iQ) /* determine the gray level */ { case 0x03 : { mng_put_uint32 (pRGBArow, 0xFFFFFFFF); break; } case 0x02 : { mng_put_uint32 (pRGBArow, 0xAAAAAAFF); break; } case 0x01 : { mng_put_uint32 (pRGBArow, 0x555555FF); break; } default : { mng_put_uint32 (pRGBArow, 0x000000FF); } } #endif } pRGBArow += 4; /* next pixel */ iM >>= 2; iS -= 2; } pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ } else { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xC0; iS = 6; } #ifdef MNG_OPTIMIZE_FOOTPRINT_SWITCH mng_put_uint32 (pRGBArow, level[((iB & iM) >> iS)] ); #else switch ((iB & iM) >> iS) /* determine the gray level */ { case 0x03 : { mng_put_uint32 (pRGBArow, 0xFFFFFFFF); break; } case 0x02 : { mng_put_uint32 (pRGBArow, 0xAAAAAAFF); break; } case 0x01 : { mng_put_uint32 (pRGBArow, 0x555555FF); break; } default : { mng_put_uint32 (pRGBArow, 0x000000FF); } } #endif pRGBArow += 4; /* next pixel */ iM >>= 2; iS -= 2; } pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_G2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_process_g4 (mng_datap pData) { mng_uint8p pWorkrow; mng_uint8p pRGBArow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; mng_uint32 iS; mng_uint8 iQ; mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_G4, MNG_LC_START); #endif if (!pBuf) /* no object? then use obj 0 */ pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pRGBArow = pData->pRGBArow; iM = 0; /* start at pixel 0 */ iB = 0; iS = 0; if (pBuf->bHasTRNS) /* tRNS encountered ? */ { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xF0; iS = 4; } /* get the gray level */ iQ = (mng_uint8)((iB & iM) >> iS); if (iQ == pBuf->iTRNSgray) /* transparent ? */ { *pRGBArow = 0; /* put in intermediate row */ *(pRGBArow+1) = 0; *(pRGBArow+2) = 0; *(pRGBArow+3) = 0; } else { /* expand to 8-bit by replication */ iQ = (mng_uint8)(iQ + (iQ << 4)); *pRGBArow = iQ; /* put in intermediate row */ *(pRGBArow+1) = iQ; *(pRGBArow+2) = iQ; *(pRGBArow+3) = 0xFF; } pRGBArow += 4; /* next pixel */ iM >>= 4; iS -= 4; } pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ } else { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xF0; iS = 4; } /* get the gray level */ iQ = (mng_uint8)((iB & iM) >> iS); iQ = (mng_uint8)(iQ + (iQ << 4));/* expand to 8-bit by replication */ *pRGBArow = iQ; /* put in intermediate row */ *(pRGBArow+1) = iQ; *(pRGBArow+2) = iQ; *(pRGBArow+3) = 0xFF; pRGBArow += 4; /* next pixel */ iM >>= 4; iS -= 4; } pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_G4, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_1_2_4BIT_SUPPORT */ /* ************************************************************************** */ mng_retcode mng_process_g8 (mng_datap pData) { mng_uint8p pWorkrow; mng_uint8p pRGBArow; mng_int32 iX; mng_uint8 iB; mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_G8, MNG_LC_START); #endif if (!pBuf) /* no object? then use obj 0 */ pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pRGBArow = pData->pRGBArow; if (pBuf->bHasTRNS) /* tRNS encountered ? */ { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iB = *pWorkrow; /* get next input-byte */ if (iB == pBuf->iTRNSgray) /* transparent ? */ { *pRGBArow = 0; /* put in intermediate row */ *(pRGBArow+1) = 0; *(pRGBArow+2) = 0; *(pRGBArow+3) = 0; } else { *pRGBArow = iB; /* put in intermediate row */ *(pRGBArow+1) = iB; *(pRGBArow+2) = iB; *(pRGBArow+3) = 0xFF; } pRGBArow += 4; /* next pixel */ pWorkrow++; } pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ } else { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iB = *pWorkrow; /* get next input-byte */ *pRGBArow = iB; /* put in intermediate row */ *(pRGBArow+1) = iB; *(pRGBArow+2) = iB; *(pRGBArow+3) = 0xFF; pRGBArow += 4; /* next pixel */ pWorkrow++; } pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_G8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_process_g16 (mng_datap pData) { mng_uint8p pWorkrow; mng_uint8p pRGBArow; mng_int32 iX; mng_uint16 iW; mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_G16, MNG_LC_START); #endif if (!pBuf) /* no object? then use obj 0 */ pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pRGBArow = pData->pRGBArow; if (pBuf->bHasTRNS) /* tRNS encountered ? */ { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iW = mng_get_uint16 (pWorkrow); /* get input */ if (iW == pBuf->iTRNSgray) /* transparent ? */ { /* put in intermediate row */ mng_put_uint16 (pRGBArow, 0); mng_put_uint16 (pRGBArow+2, 0); mng_put_uint16 (pRGBArow+4, 0); mng_put_uint16 (pRGBArow+6, 0); } else { /* put in intermediate row */ mng_put_uint16 (pRGBArow, iW); mng_put_uint16 (pRGBArow+2, iW); mng_put_uint16 (pRGBArow+4, iW); mng_put_uint16 (pRGBArow+6, 0xFFFF); } pRGBArow += 8; /* next pixel */ pWorkrow += 2; } pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ } else { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iW = mng_get_uint16 (pWorkrow); /* get input */ mng_put_uint16 (pRGBArow, iW); /* and put in intermediate row */ mng_put_uint16 (pRGBArow+2, iW); mng_put_uint16 (pRGBArow+4, iW); mng_put_uint16 (pRGBArow+6, 0xFFFF); pRGBArow += 8; /* next pixel */ pWorkrow += 2; } pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_G16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_process_rgb8 (mng_datap pData) { mng_uint8p pWorkrow; mng_uint8p pRGBArow; mng_int32 iX; mng_uint8 iR, iG, iB; mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_RGB8, MNG_LC_START); #endif if (!pBuf) /* no object? then use obj 0 */ pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pRGBArow = pData->pRGBArow; if (pBuf->bHasTRNS) /* tRNS encountered ? */ { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iR = *pWorkrow; /* get the RGB values */ iG = *(pWorkrow+1); iB = *(pWorkrow+2); /* transparent ? */ if ((iR == pBuf->iTRNSred) && (iG == pBuf->iTRNSgreen) && (iB == pBuf->iTRNSblue)) { *pRGBArow = 0; /* this pixel is transparent ! */ *(pRGBArow+1) = 0; *(pRGBArow+2) = 0; *(pRGBArow+3) = 0; } else { *pRGBArow = iR; /* copy the RGB values */ *(pRGBArow+1) = iG; *(pRGBArow+2) = iB; *(pRGBArow+3) = 0xFF; /* this one isn't transparent */ } pWorkrow += 3; /* next pixel */ pRGBArow += 4; } pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ } else { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pRGBArow = *pWorkrow; /* copy the RGB bytes */ *(pRGBArow+1) = *(pWorkrow+1); *(pRGBArow+2) = *(pWorkrow+2); *(pRGBArow+3) = 0xFF; /* no alpha; so always fully opaque */ pWorkrow += 3; /* next pixel */ pRGBArow += 4; } pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_RGB8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_process_rgb16 (mng_datap pData) { mng_uint8p pWorkrow; mng_uint8p pRGBArow; mng_int32 iX; mng_uint16 iR, iG, iB; mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_RGB16, MNG_LC_START); #endif if (!pBuf) /* no object? then use obj 0 */ pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pRGBArow = pData->pRGBArow; if (pBuf->bHasTRNS) /* tRNS encountered ? */ { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iR = mng_get_uint16 (pWorkrow); /* get the RGB values */ iG = mng_get_uint16 (pWorkrow+2); iB = mng_get_uint16 (pWorkrow+4); /* transparent ? */ if ((iR == pBuf->iTRNSred) && (iG == pBuf->iTRNSgreen) && (iB == pBuf->iTRNSblue)) { /* transparent then */ mng_put_uint16 (pRGBArow, 0); mng_put_uint16 (pRGBArow+2, 0); mng_put_uint16 (pRGBArow+4, 0); mng_put_uint16 (pRGBArow+6, 0); } else { /* put in intermediate row */ mng_put_uint16 (pRGBArow, iR); mng_put_uint16 (pRGBArow+2, iG); mng_put_uint16 (pRGBArow+4, iB); mng_put_uint16 (pRGBArow+6, 0xFFFF); } pWorkrow += 6; /* next pixel */ pRGBArow += 8; } pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ } else { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { /* copy the RGB values */ mng_put_uint16 (pRGBArow, mng_get_uint16 (pWorkrow )); mng_put_uint16 (pRGBArow+2, mng_get_uint16 (pWorkrow+2)); mng_put_uint16 (pRGBArow+4, mng_get_uint16 (pWorkrow+4)); mng_put_uint16 (pRGBArow+6, 0xFFFF); pWorkrow += 6; /* next pixel */ pRGBArow += 8; } pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_RGB16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ #ifndef MNG_NO_1_2_4BIT_SUPPORT mng_retcode mng_process_idx1 (mng_datap pData) { mng_uint8p pWorkrow; mng_uint8p pRGBArow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; mng_uint32 iS; mng_uint8 iQ; mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_IDX1, MNG_LC_START); #endif if (!pBuf) /* no object? then use obj 0 */ pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pRGBArow = pData->pRGBArow; iM = 0; /* start at pixel 0 */ iB = 0; iS = 0; if (pBuf->bHasTRNS) /* tRNS encountered ? */ { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0x80; iS = 7; } /* get the index */ iQ = (mng_uint8)((iB & iM) >> iS); /* index valid ? */ if ((mng_uint32)iQ < pBuf->iPLTEcount) { /* put in intermediate row */ *pRGBArow = pBuf->aPLTEentries [iQ].iRed; *(pRGBArow+1) = pBuf->aPLTEentries [iQ].iGreen; *(pRGBArow+2) = pBuf->aPLTEentries [iQ].iBlue; /* transparency for this index ? */ if ((mng_uint32)iQ < pBuf->iTRNScount) *(pRGBArow+3) = pBuf->aTRNSentries [iQ]; else *(pRGBArow+3) = 0xFF; } else MNG_ERROR (pData, MNG_PLTEINDEXERROR); pRGBArow += 4; /* next pixel */ iM >>= 1; iS -= 1; } pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ } else { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0x80; iS = 7; } /* get the index */ iQ = (mng_uint8)((iB & iM) >> iS); /* index valid ? */ if ((mng_uint32)iQ < pBuf->iPLTEcount) { /* put in intermediate row */ *pRGBArow = pBuf->aPLTEentries [iQ].iRed; *(pRGBArow+1) = pBuf->aPLTEentries [iQ].iGreen; *(pRGBArow+2) = pBuf->aPLTEentries [iQ].iBlue; *(pRGBArow+3) = 0xFF; } else MNG_ERROR (pData, MNG_PLTEINDEXERROR); pRGBArow += 4; /* next pixel */ iM >>= 1; iS -= 1; } pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_IDX1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_process_idx2 (mng_datap pData) { mng_uint8p pWorkrow; mng_uint8p pRGBArow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; mng_uint32 iS; mng_uint8 iQ; mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_IDX2, MNG_LC_START); #endif if (!pBuf) /* no object? then use obj 0 */ pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pRGBArow = pData->pRGBArow; iM = 0; /* start at pixel 0 */ iB = 0; iS = 0; if (pBuf->bHasTRNS) /* tRNS encountered ? */ { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xC0; iS = 6; } /* get the index */ iQ = (mng_uint8)((iB & iM) >> iS); /* index valid ? */ if ((mng_uint32)iQ < pBuf->iPLTEcount) { /* put in intermediate row */ *pRGBArow = pBuf->aPLTEentries [iQ].iRed; *(pRGBArow+1) = pBuf->aPLTEentries [iQ].iGreen; *(pRGBArow+2) = pBuf->aPLTEentries [iQ].iBlue; /* transparency for this index ? */ if ((mng_uint32)iQ < pBuf->iTRNScount) *(pRGBArow+3) = pBuf->aTRNSentries [iQ]; else *(pRGBArow+3) = 0xFF; } else MNG_ERROR (pData, MNG_PLTEINDEXERROR); pRGBArow += 4; /* next pixel */ iM >>= 2; iS -= 2; } pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ } else { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = *pWorkrow; /* get next input-byte */ pWorkrow++; iM = 0xC0; iS = 6; } /* get the index */ iQ = (mng_uint8)((iB & iM) >> iS); /* index valid ? */ if ((mng_uint32)iQ < pBuf->iPLTEcount) { /* put in intermediate row */ *pRGBArow = pBuf->aPLTEentries [iQ].iRed; *(pRGBArow+1) = pBuf->aPLTEentries [iQ].iGreen; *(pRGBArow+2) = pBuf->aPLTEentries [iQ].iBlue; *(pRGBArow+3) = 0xFF; } else MNG_ERROR (pData, MNG_PLTEINDEXERROR); pRGBArow += 4; /* next pixel */ iM >>= 2; iS -= 2; } pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_IDX2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_process_idx4 (mng_datap pData) { mng_uint8p pWorkrow; mng_uint8p pRGBArow; mng_int32 iX; mng_uint8 iB; mng_uint8 iM; mng_uint32 iS; mng_uint8 iQ; mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_IDX4, MNG_LC_START); #endif if (!pBuf) /* no object? then use obj 0 */ pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pRGBArow = pData->pRGBArow; iM = 0; /* start at pixel 0 */ iB = 0; iS = 0; if (pBuf->bHasTRNS) /* tRNS encountered ? */ { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = pWorkrow [0]; /* get next input-byte */ pWorkrow++; iM = 0xF0; iS = 4; } /* get the index */ iQ = (mng_uint8)((iB & iM) >> iS); /* index valid ? */ if ((mng_uint32)iQ < pBuf->iPLTEcount) { /* put in intermediate row */ pRGBArow [0] = pBuf->aPLTEentries [iQ].iRed; pRGBArow [1] = pBuf->aPLTEentries [iQ].iGreen; pRGBArow [2] = pBuf->aPLTEentries [iQ].iBlue; /* transparency for this index ? */ if ((mng_uint32)iQ < pBuf->iTRNScount) pRGBArow [3] = pBuf->aTRNSentries [iQ]; else pRGBArow [3] = 0xFF; } else MNG_ERROR (pData, MNG_PLTEINDEXERROR); pRGBArow += 4; /* next pixel */ iM >>= 4; iS -= 4; } pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ } else { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { if (!iM) /* mask underflow ? */ { iB = pWorkrow [0]; /* get next input-byte */ pWorkrow++; iM = 0xF0; iS = 4; } /* get the index */ iQ = (mng_uint8)((iB & iM) >> iS); /* index valid ? */ if ((mng_uint32)iQ < pBuf->iPLTEcount) { /* put in intermediate row */ pRGBArow [0] = pBuf->aPLTEentries [iQ].iRed; pRGBArow [1] = pBuf->aPLTEentries [iQ].iGreen; pRGBArow [2] = pBuf->aPLTEentries [iQ].iBlue; pRGBArow [3] = 0xFF; } else MNG_ERROR (pData, MNG_PLTEINDEXERROR); pRGBArow += 4; /* next pixel */ iM >>= 4; iS -= 4; } pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_IDX4, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_1_2_4BIT_SUPPORT */ /* ************************************************************************** */ mng_retcode mng_process_idx8 (mng_datap pData) { mng_uint8p pWorkrow; mng_uint8p pRGBArow; mng_int32 iX; mng_uint8 iQ; mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_IDX8, MNG_LC_START); #endif if (!pBuf) /* no object? then use obj 0 */ pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pRGBArow = pData->pRGBArow; if (pBuf->bHasTRNS) /* tRNS encountered ? */ { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iQ = *pWorkrow; /* get input byte */ /* index valid ? */ if ((mng_uint32)iQ < pBuf->iPLTEcount) { /* put in intermediate row */ pRGBArow [0] = pBuf->aPLTEentries [iQ].iRed; pRGBArow [1] = pBuf->aPLTEentries [iQ].iGreen; pRGBArow [2] = pBuf->aPLTEentries [iQ].iBlue; /* transparency for this index ? */ if ((mng_uint32)iQ < pBuf->iTRNScount) pRGBArow [3] = pBuf->aTRNSentries [iQ]; else pRGBArow [3] = 0xFF; } else MNG_ERROR (pData, MNG_PLTEINDEXERROR); pRGBArow += 4; /* next pixel */ pWorkrow++; } pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ } else { #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iQ = *pWorkrow; /* get input byte */ /* index valid ? */ if ((mng_uint32)iQ < pBuf->iPLTEcount) { /* put in intermediate row */ pRGBArow [0] = pBuf->aPLTEentries [iQ].iRed; pRGBArow [1] = pBuf->aPLTEentries [iQ].iGreen; pRGBArow [2] = pBuf->aPLTEentries [iQ].iBlue; pRGBArow [3] = 0xFF; } else MNG_ERROR (pData, MNG_PLTEINDEXERROR); pRGBArow += 4; /* next pixel */ pWorkrow++; } pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_IDX8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_process_ga8 (mng_datap pData) { mng_uint8p pWorkrow; mng_uint8p pRGBArow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_GA8, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pRGBArow = pData->pRGBArow; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { *pRGBArow = *pWorkrow; /* copy the gray value */ *(pRGBArow+1) = *pWorkrow; *(pRGBArow+2) = *pWorkrow; *(pRGBArow+3) = *(pWorkrow+1); /* copy the alpha value */ pWorkrow += 2; /* next pixel */ pRGBArow += 4; } pData->bIsOpaque = MNG_FALSE; /* it's definitely not fully opaque */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_GA8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_process_ga16 (mng_datap pData) { mng_uint8p pWorkrow; mng_uint8p pRGBArow; mng_int32 iX; mng_uint16 iW; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_GA16, MNG_LC_START); #endif /* temporary work pointers */ pWorkrow = pData->pWorkrow + pData->iPixelofs; pRGBArow = pData->pRGBArow; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iW = mng_get_uint16 (pWorkrow); /* copy the gray value */ mng_put_uint16 (pRGBArow, iW); mng_put_uint16 (pRGBArow+2, iW); mng_put_uint16 (pRGBArow+4, iW); /* copy the alpha value */ mng_put_uint16 (pRGBArow+6, mng_get_uint16 (pWorkrow+2)); pWorkrow += 4; /* next pixel */ pRGBArow += 8; } pData->bIsOpaque = MNG_FALSE; /* it's definitely not fully opaque */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_GA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_process_rgba8 (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_RGBA8, MNG_LC_START); #endif /* this is the easiest transform */ MNG_COPY (pData->pRGBArow, pData->pWorkrow + pData->iPixelofs, pData->iRowsize); pData->bIsOpaque = MNG_FALSE; /* it's definitely not fully opaque */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_RGBA8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_process_rgba16 (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_RGBA16, MNG_LC_START); #endif /* this is the easiest transform */ MNG_COPY (pData->pRGBArow, pData->pWorkrow + pData->iPixelofs, pData->iRowsize); pData->bIsOpaque = MNG_FALSE; /* it's definitely not fully opaque */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_PROCESS_RGBA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ /* * * */ /* * Row processing initialization routines - set up the variables needed * */ /* * to process uncompressed row-data * */ /* * * */ /* ************************************************************************** */ #ifndef MNG_OPTIMIZE_FOOTPRINT_INIT #ifndef MNG_NO_1_2_4BIT_SUPPORT mng_retcode mng_init_g1_ni (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_G1_NI, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_g1; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_g1; else #endif pData->fStorerow = (mng_fptr)mng_store_g1; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_g1; #endif pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; pData->iSamplemul = 1; pData->iSampleofs = 7; pData->iSamplediv = 3; pData->iRowsize = (pData->iRowsamples + 7) >> 3; pData->iRowmax = pData->iRowsize + pData->iPixelofs; pData->iFilterbpp = 1; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_G1_NI, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ mng_retcode mng_init_g1_i (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_G1_I, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_g1; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_g1; else #endif pData->fStorerow = (mng_fptr)mng_store_g1; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_g1; #endif pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ pData->iRow = interlace_row [0]; pData->iRowinc = interlace_rowskip [0]; pData->iCol = interlace_col [0]; pData->iColinc = interlace_colskip [0]; pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; pData->iSamplemul = 1; pData->iSampleofs = 7; pData->iSamplediv = 3; pData->iRowsize = ((pData->iRowsamples + 7) >> 3); pData->iRowmax = ((pData->iDatawidth + 7) >> 3) + pData->iPixelofs; pData->iFilterbpp = 1; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_G1_I, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ mng_retcode mng_init_g2_ni (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_G2_NI, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_g2; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_g2; else #endif pData->fStorerow = (mng_fptr)mng_store_g2; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_g2; #endif pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; pData->iSamplemul = 1; pData->iSampleofs = 3; pData->iSamplediv = 2; pData->iRowsize = (pData->iRowsamples + 3) >> 2; pData->iRowmax = pData->iRowsize + pData->iPixelofs; pData->iFilterbpp = 1; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_G2_NI, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ mng_retcode mng_init_g2_i (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_G2_I, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_g2; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_g2; else #endif pData->fStorerow = (mng_fptr)mng_store_g2; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_g2; #endif pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ pData->iRow = interlace_row [0]; pData->iRowinc = interlace_rowskip [0]; pData->iCol = interlace_col [0]; pData->iColinc = interlace_colskip [0]; pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; pData->iSamplemul = 1; pData->iSampleofs = 3; pData->iSamplediv = 2; pData->iRowsize = ((pData->iRowsamples + 3) >> 2); pData->iRowmax = ((pData->iDatawidth + 3) >> 2) + pData->iPixelofs; pData->iFilterbpp = 1; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_G2_I, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ mng_retcode mng_init_g4_ni (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_G4_NI, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_g4; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_g4; else #endif pData->fStorerow = (mng_fptr)mng_store_g4; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_g4; #endif pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; pData->iSamplemul = 1; pData->iSampleofs = 1; pData->iSamplediv = 1; pData->iRowsize = (pData->iRowsamples + 1) >> 1; pData->iRowmax = pData->iRowsize + pData->iPixelofs; pData->iFilterbpp = 1; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_G4_NI, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ mng_retcode mng_init_g4_i (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_G4_I, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_g4; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_g4; else #endif pData->fStorerow = (mng_fptr)mng_store_g4; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_g4; #endif pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ pData->iRow = interlace_row [0]; pData->iRowinc = interlace_rowskip [0]; pData->iCol = interlace_col [0]; pData->iColinc = interlace_colskip [0]; pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; pData->iSamplemul = 1; pData->iSampleofs = 1; pData->iSamplediv = 1; pData->iRowsize = ((pData->iRowsamples + 1) >> 1); pData->iRowmax = ((pData->iDatawidth + 1) >> 1) + pData->iPixelofs; pData->iFilterbpp = 1; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_G4_I, MNG_LC_END); #endif return mng_init_rowproc (pData); } #endif /* MNG_NO_1_2_4BIT_SUPPORT */ /* ************************************************************************** */ mng_retcode mng_init_g8_ni (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_G8_NI, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_g8; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_g8; else #endif pData->fStorerow = (mng_fptr)mng_store_g8; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_g8; #endif pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; pData->iSamplemul = 1; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = pData->iRowsamples; pData->iRowmax = pData->iRowsize + pData->iPixelofs; pData->iFilterbpp = 1; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_G8_NI, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ mng_retcode mng_init_g8_i (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_G8_I, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_g8; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_g8; else #endif pData->fStorerow = (mng_fptr)mng_store_g8; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_g8; #endif pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ pData->iRow = interlace_row [0]; pData->iRowinc = interlace_rowskip [0]; pData->iCol = interlace_col [0]; pData->iColinc = interlace_colskip [0]; pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; pData->iSamplemul = 1; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = pData->iRowsamples; pData->iRowmax = pData->iDatawidth + pData->iPixelofs; pData->iFilterbpp = 1; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_G8_I, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_init_g16_ni (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_G16_NI, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_g16; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_g16; else #endif pData->fStorerow = (mng_fptr)mng_store_g16; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_g16; #endif pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; pData->iSamplemul = 2; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = pData->iRowsamples << 1; pData->iRowmax = pData->iRowsize + pData->iPixelofs; pData->iFilterbpp = 2; pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_G16_NI, MNG_LC_END); #endif return mng_init_rowproc (pData); } #endif /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_init_g16_i (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_G16_I, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_g16; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_g16; else #endif pData->fStorerow = (mng_fptr)mng_store_g16; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_g16; #endif pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ pData->iRow = interlace_row [0]; pData->iRowinc = interlace_rowskip [0]; pData->iCol = interlace_col [0]; pData->iColinc = interlace_colskip [0]; pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; pData->iSamplemul = 2; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = pData->iRowsamples << 1; pData->iRowmax = (pData->iDatawidth << 1) + pData->iPixelofs; pData->iFilterbpp = 2; pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_G16_I, MNG_LC_END); #endif return mng_init_rowproc (pData); } #endif /* ************************************************************************** */ mng_retcode mng_init_rgb8_ni (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_RGB8_NI, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_rgb8; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_rgb8; else #endif pData->fStorerow = (mng_fptr)mng_store_rgb8; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_rgb8; #endif pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; pData->iSamplemul = 3; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = pData->iRowsamples * 3; pData->iRowmax = pData->iRowsize + pData->iPixelofs; pData->iFilterbpp = 3; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_RGB8_NI, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ mng_retcode mng_init_rgb8_i (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_RGB8_I, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_rgb8; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_rgb8; else #endif pData->fStorerow = (mng_fptr)mng_store_rgb8; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_rgb8; #endif pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ pData->iRow = interlace_row [0]; pData->iRowinc = interlace_rowskip [0]; pData->iCol = interlace_col [0]; pData->iColinc = interlace_colskip [0]; pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; pData->iSamplemul = 3; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = pData->iRowsamples * 3; pData->iRowmax = (pData->iDatawidth * 3) + pData->iPixelofs; pData->iFilterbpp = 3; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_RGB8_I, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_init_rgb16_ni (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_RGB16_NI, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_rgb16; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_rgb16; else #endif pData->fStorerow = (mng_fptr)mng_store_rgb16; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_rgb16; #endif pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; pData->iSamplemul = 6; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = pData->iRowsamples * 6; pData->iRowmax = pData->iRowsize + pData->iPixelofs; pData->iFilterbpp = 6; pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_RGB16_NI, MNG_LC_END); #endif return mng_init_rowproc (pData); } #endif /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_init_rgb16_i (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_RGB16_I, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_rgb16; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_rgb16; else #endif pData->fStorerow = (mng_fptr)mng_store_rgb16; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_rgb16; #endif pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ pData->iRow = interlace_row [0]; pData->iRowinc = interlace_rowskip [0]; pData->iCol = interlace_col [0]; pData->iColinc = interlace_colskip [0]; pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; pData->iSamplemul = 6; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = pData->iRowsamples * 6; pData->iRowmax = (pData->iDatawidth * 6) + pData->iPixelofs; pData->iFilterbpp = 6; pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_RGB16_I, MNG_LC_END); #endif return mng_init_rowproc (pData); } #endif /* ************************************************************************** */ #ifndef MNG_NO_1_2_4BIT_SUPPORT mng_retcode mng_init_idx1_ni (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_IDX1_NI, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_idx1; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_idx1; else #endif pData->fStorerow = (mng_fptr)mng_store_idx1; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_idx1; #endif pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; pData->iSamplemul = 1; pData->iSampleofs = 7; pData->iSamplediv = 3; pData->iRowsize = (pData->iRowsamples + 7) >> 3; pData->iRowmax = pData->iRowsize + pData->iPixelofs; pData->iFilterbpp = 1; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_IDX1_NI, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ mng_retcode mng_init_idx1_i (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_IDX1_I, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_idx1; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_idx1; else #endif pData->fStorerow = (mng_fptr)mng_store_idx1; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_idx1; #endif pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ pData->iRow = interlace_row [0]; pData->iRowinc = interlace_rowskip [0]; pData->iCol = interlace_col [0]; pData->iColinc = interlace_colskip [0]; pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; pData->iSamplemul = 1; pData->iSampleofs = 7; pData->iSamplediv = 3; pData->iRowsize = (pData->iRowsamples + 7) >> 3; pData->iRowmax = ((pData->iDatawidth + 7) >> 3) + pData->iPixelofs; pData->iFilterbpp = 1; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_IDX1_I, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ mng_retcode mng_init_idx2_ni (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_IDX2_NI, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_idx2; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_idx2; else #endif pData->fStorerow = (mng_fptr)mng_store_idx2; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_idx2; #endif pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; pData->iSamplemul = 1; pData->iSampleofs = 3; pData->iSamplediv = 2; pData->iRowsize = (pData->iRowsamples + 3) >> 2; pData->iRowmax = pData->iRowsize + pData->iPixelofs; pData->iFilterbpp = 1; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_IDX2_NI, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ mng_retcode mng_init_idx2_i (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_IDX2_I, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_idx2; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_idx2; else #endif pData->fStorerow = (mng_fptr)mng_store_idx2; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_idx2; #endif pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ pData->iRow = interlace_row [0]; pData->iRowinc = interlace_rowskip [0]; pData->iCol = interlace_col [0]; pData->iColinc = interlace_colskip [0]; pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; pData->iSamplemul = 1; pData->iSampleofs = 3; pData->iSamplediv = 2; pData->iRowsize = (pData->iRowsamples + 3) >> 2; pData->iRowmax = ((pData->iDatawidth + 3) >> 2) + pData->iPixelofs; pData->iFilterbpp = 1; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_IDX2_I, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ mng_retcode mng_init_idx4_ni (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_IDX4_NI, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_idx4; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_idx4; else #endif pData->fStorerow = (mng_fptr)mng_store_idx4; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_idx4; #endif pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; pData->iSamplemul = 1; pData->iSampleofs = 1; pData->iSamplediv = 1; pData->iRowsize = (pData->iRowsamples + 1) >> 1; pData->iRowmax = pData->iRowsize + pData->iPixelofs; pData->iFilterbpp = 1; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_IDX4_NI, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ mng_retcode mng_init_idx4_i (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_IDX4_I, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_idx4; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_idx4; else #endif pData->fStorerow = (mng_fptr)mng_store_idx4; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_idx4; #endif pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ pData->iRow = interlace_row [0]; pData->iRowinc = interlace_rowskip [0]; pData->iCol = interlace_col [0]; pData->iColinc = interlace_colskip [0]; pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; pData->iSamplemul = 1; pData->iSampleofs = 1; pData->iSamplediv = 1; pData->iRowsize = (pData->iRowsamples + 1) >> 1; pData->iRowmax = ((pData->iDatawidth + 1) >> 1) + pData->iPixelofs; pData->iFilterbpp = 1; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_IDX4_I, MNG_LC_END); #endif return mng_init_rowproc (pData); } #endif /* MNG_NO_1_2_4BIT_SUPPORT */ /* ************************************************************************** */ mng_retcode mng_init_idx8_ni (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_IDX8_NI, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_idx8; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_idx8; else #endif pData->fStorerow = (mng_fptr)mng_store_idx8; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_idx8; #endif pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; pData->iSamplemul = 1; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = pData->iRowsamples; pData->iRowmax = pData->iRowsize + pData->iPixelofs; pData->iFilterbpp = 1; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_IDX8_NI, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ mng_retcode mng_init_idx8_i (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_IDX8_I, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_idx8; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_idx8; else #endif pData->fStorerow = (mng_fptr)mng_store_idx8; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_idx8; #endif pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ pData->iRow = interlace_row [0]; pData->iRowinc = interlace_rowskip [0]; pData->iCol = interlace_col [0]; pData->iColinc = interlace_colskip [0]; pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; pData->iSamplemul = 1; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = pData->iRowsamples; pData->iRowmax = pData->iDatawidth + pData->iPixelofs; pData->iFilterbpp = 1; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_IDX8_I, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ mng_retcode mng_init_ga8_ni (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_GA8_NI, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_ga8; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_ga8; else #endif pData->fStorerow = (mng_fptr)mng_store_ga8; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_ga8; #endif pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; pData->iSamplemul = 2; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = pData->iRowsamples << 1; pData->iRowmax = pData->iRowsize + pData->iPixelofs; pData->iFilterbpp = 2; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_GA8_NI, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ mng_retcode mng_init_ga8_i (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_GA8_I, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_ga8; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_ga8; else #endif pData->fStorerow = (mng_fptr)mng_store_ga8; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_ga8; #endif pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ pData->iRow = interlace_row [0]; pData->iRowinc = interlace_rowskip [0]; pData->iCol = interlace_col [0]; pData->iColinc = interlace_colskip [0]; pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; pData->iSamplemul = 2; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = pData->iRowsamples << 1; pData->iRowmax = (pData->iDatawidth << 1) + pData->iPixelofs; pData->iFilterbpp = 2; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_GA8_I, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_init_ga16_ni (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_GA16_NI, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_ga16; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_ga16; else #endif pData->fStorerow = (mng_fptr)mng_store_ga16; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_ga16; #endif pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; pData->iSamplemul = 4; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = pData->iRowsamples << 2; pData->iRowmax = pData->iRowsize + pData->iPixelofs; pData->iFilterbpp = 4; pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_GA16_NI, MNG_LC_END); #endif return mng_init_rowproc (pData); } #endif /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_init_ga16_i (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_GA16_I, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_ga16; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_ga16; else #endif pData->fStorerow = (mng_fptr)mng_store_ga16; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_ga16; #endif pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ pData->iRow = interlace_row [0]; pData->iRowinc = interlace_rowskip [0]; pData->iCol = interlace_col [0]; pData->iColinc = interlace_colskip [0]; pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; pData->iSamplemul = 4; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = pData->iRowsamples << 2; pData->iRowmax = (pData->iDatawidth << 2) + pData->iPixelofs; pData->iFilterbpp = 4; pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_GA16_I, MNG_LC_END); #endif return mng_init_rowproc (pData); } #endif /* ************************************************************************** */ mng_retcode mng_init_rgba8_ni (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_RGBA8_NI, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_rgba8; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_rgba8; else #endif pData->fStorerow = (mng_fptr)mng_store_rgba8; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_rgba8; #endif pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; pData->iSamplemul = 4; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = pData->iRowsamples << 2; pData->iRowmax = pData->iRowsize + pData->iPixelofs; pData->iFilterbpp = 4; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_RGBA8_NI, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ mng_retcode mng_init_rgba8_i (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_RGBA8_I, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_rgba8; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_rgba8; else #endif pData->fStorerow = (mng_fptr)mng_store_rgba8; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_rgba8; #endif pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ pData->iRow = interlace_row [0]; pData->iRowinc = interlace_rowskip [0]; pData->iCol = interlace_col [0]; pData->iColinc = interlace_colskip [0]; pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; pData->iSamplemul = 4; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = pData->iRowsamples << 2; pData->iRowmax = (pData->iDatawidth << 2) + pData->iPixelofs; pData->iFilterbpp = 4; pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_RGBA8_I, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_init_rgba16_ni (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_RGBA16_NI, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_rgba16; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_rgba16; else #endif pData->fStorerow = (mng_fptr)mng_store_rgba16; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_rgba16; #endif pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; pData->iSamplemul = 8; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = pData->iRowsamples << 3; pData->iRowmax = pData->iRowsize + pData->iPixelofs; pData->iFilterbpp = 8; pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_RGBA16_NI, MNG_LC_END); #endif return mng_init_rowproc (pData); } #endif /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_init_rgba16_i (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_RGBA16_I, MNG_LC_START); #endif if (pData->fDisplayrow) pData->fProcessrow = (mng_fptr)mng_process_rgba16; if (pData->pStoreobj) /* store in object too ? */ { /* immediate delta ? */ #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) pData->fStorerow = (mng_fptr)mng_delta_rgba16; else #endif pData->fStorerow = (mng_fptr)mng_store_rgba16; } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_rgba16; #endif pData->iPass = 0; /* from 0..6; (1..7 in specification) */ pData->iRow = interlace_row [0]; pData->iRowinc = interlace_rowskip [0]; pData->iCol = interlace_col [0]; pData->iColinc = interlace_colskip [0]; pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; pData->iSamplemul = 8; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = pData->iRowsamples << 3; pData->iRowmax = (pData->iDatawidth << 3) + pData->iPixelofs; pData->iFilterbpp = 8; pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_RGBA16_I, MNG_LC_END); #endif return mng_init_rowproc (pData); } #endif /* ************************************************************************** */ /* * * */ /* * Row processing initialization routines (JPEG) - set up the variables * */ /* * needed to process uncompressed row-data * */ /* * * */ /* ************************************************************************** */ #ifdef MNG_INCLUDE_JNG /* ************************************************************************** */ #ifndef MNG_NO_1_2_4BIT_SUPPORT mng_retcode mng_init_jpeg_a1_ni (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_JPEG_A1_NI, MNG_LC_START); #endif if (pData->pStoreobj) /* store in object too ? */ { if (pData->iJHDRimgbitdepth == 8) { switch (pData->iJHDRcolortype) { case 12 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_g8_a1; break; } case 14 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_rgb8_a1; break; } } } /* TODO: bitdepth 12 & 20 */ } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_g1; #endif pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; pData->iSamplemul = 1; pData->iSampleofs = 7; pData->iSamplediv = 3; pData->iRowsize = (pData->iRowsamples + 7) >> 3; pData->iRowmax = pData->iRowsize + pData->iPixelofs; pData->iFilterbpp = 1; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_JPEG_A1_NI, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ mng_retcode mng_init_jpeg_a2_ni (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_JPEG_A2_NI, MNG_LC_START); #endif if (pData->pStoreobj) /* store in object too ? */ { if (pData->iJHDRimgbitdepth == 8) { switch (pData->iJHDRcolortype) { case 12 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_g8_a2; break; } case 14 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_rgb8_a2; break; } } } /* TODO: bitdepth 12 & 20 */ } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_g2; #endif pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; pData->iSamplemul = 1; pData->iSampleofs = 3; pData->iSamplediv = 2; pData->iRowsize = (pData->iRowsamples + 3) >> 2; pData->iRowmax = pData->iRowsize + pData->iPixelofs; pData->iFilterbpp = 1; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_JPEG_A2_NI, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ mng_retcode mng_init_jpeg_a4_ni (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_JPEG_A4_NI, MNG_LC_START); #endif if (pData->pStoreobj) /* store in object too ? */ { if (pData->iJHDRimgbitdepth == 8) { switch (pData->iJHDRcolortype) { case 12 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_g8_a4; break; } case 14 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_rgb8_a4; break; } } } /* TODO: bitdepth 12 & 20 */ } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_g4; #endif pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; pData->iSamplemul = 1; pData->iSampleofs = 1; pData->iSamplediv = 1; pData->iRowsize = (pData->iRowsamples + 1) >> 1; pData->iRowmax = pData->iRowsize + pData->iPixelofs; pData->iFilterbpp = 1; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_JPEG_A4_NI, MNG_LC_END); #endif return mng_init_rowproc (pData); } #endif /* MNG_NO_1_2_4BIT_SUPPORT */ /* ************************************************************************** */ mng_retcode mng_init_jpeg_a8_ni (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_JPEG_A8_NI, MNG_LC_START); #endif if (pData->pStoreobj) /* store in object too ? */ { if (pData->iJHDRimgbitdepth == 8) { switch (pData->iJHDRcolortype) { case 12 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_g8_a8; break; } case 14 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_rgb8_a8; break; } } } /* TODO: bitdepth 12 & 20 */ } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_g8; #endif pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; pData->iSamplemul = 1; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = pData->iRowsamples; pData->iRowmax = pData->iRowsize + pData->iPixelofs; pData->iFilterbpp = 1; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_JPEG_A8_NI, MNG_LC_END); #endif return mng_init_rowproc (pData); } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_init_jpeg_a16_ni (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_JPEG_A16_NI, MNG_LC_START); #endif if (pData->pStoreobj) /* store in object too ? */ { if (pData->iJHDRimgbitdepth == 8) { switch (pData->iJHDRcolortype) { case 12 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_g8_a16; break; } case 14 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_rgb8_a16; break; } } } /* TODO: bitdepth 12 & 20 */ } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) pData->fDifferrow = (mng_fptr)mng_differ_g16; #endif pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; pData->iSamplemul = 2; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = pData->iRowsamples << 1; pData->iRowmax = pData->iRowsize + pData->iPixelofs; pData->iFilterbpp = 2; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_JPEG_A16_NI, MNG_LC_END); #endif return mng_init_rowproc (pData); } #endif /* ************************************************************************** */ #endif /* MNG_INCLUDE_JNG */ #endif /* MNG_OPTIMIZE_FOOTPRINT_INIT */ /* ************************************************************************** */ /* * * */ /* * Generic row processing initialization & cleanup routines * */ /* * - initialize the buffers used by the row processing routines * */ /* * - cleanup the buffers used by the row processing routines * */ /* * * */ /* ************************************************************************** */ mng_retcode mng_init_rowproc (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_ROWPROC, MNG_LC_START); #endif #ifdef MNG_OPTIMIZE_FOOTPRINT_INIT if (pData->ePng_imgtype != png_none) { if (pData->fDisplayrow) switch (pData->ePng_imgtype) { #ifndef MNG_NO_1_2_4BIT_SUPPORT case png_g1: pData->fProcessrow = (mng_fptr)mng_process_g1; break; case png_g2: pData->fProcessrow = (mng_fptr)mng_process_g2; break; case png_g4: pData->fProcessrow = (mng_fptr)mng_process_g4; break; #endif /* MNG_NO_1_2_4BIT_SUPPORT */ case png_g8: pData->fProcessrow = (mng_fptr)mng_process_g8; break; #ifndef MNG_NO_1_2_4BIT_SUPPORT case png_idx1: pData->fProcessrow = (mng_fptr)mng_process_idx1; break; case png_idx2: pData->fProcessrow = (mng_fptr)mng_process_idx2; break; case png_idx4: pData->fProcessrow = (mng_fptr)mng_process_idx4; break; #endif /* MNG_NO_1_2_4BIT_SUPPORT */ case png_idx8: pData->fProcessrow = (mng_fptr)mng_process_idx8; break; case png_ga8: pData->fProcessrow = (mng_fptr)mng_process_ga8; break; case png_rgb8: pData->fProcessrow = (mng_fptr)mng_process_rgb8; break; case png_rgba8: pData->fProcessrow = (mng_fptr)mng_process_rgba8; break; #ifndef MNG_NO_16BIT_SUPPORT case png_g16: pData->fProcessrow = (mng_fptr)mng_process_g16; break; case png_ga16: pData->fProcessrow = (mng_fptr)mng_process_ga16; break; case png_rgb16: pData->fProcessrow = (mng_fptr)mng_process_rgb16; break; case png_rgba16: pData->fProcessrow = (mng_fptr)mng_process_rgba16; break; #endif default: break; } if (pData->pStoreobj) /* store in object too ? */ { #ifndef MNG_NO_DELTA_PNG if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) switch (pData->ePng_imgtype) { #ifndef MNG_NO_1_2_4BIT_SUPPORT case png_g1: pData->fStorerow = (mng_fptr)mng_delta_g1; break; case png_g2: pData->fStorerow = (mng_fptr)mng_delta_g2; break; case png_g4: pData->fStorerow = (mng_fptr)mng_delta_g4; break; #endif /* MNG_NO_1_2_4BIT_SUPPORT */ case png_g8: pData->fStorerow = (mng_fptr)mng_delta_g8; break; #ifndef MNG_NO_1_2_4BIT_SUPPORT case png_idx1: pData->fStorerow = (mng_fptr)mng_delta_idx1; break; case png_idx2: pData->fStorerow = (mng_fptr)mng_delta_idx2; break; case png_idx4: pData->fStorerow = (mng_fptr)mng_delta_idx4; break; #endif /* MNG_NO_1_2_4BIT_SUPPORT */ case png_idx8: pData->fStorerow = (mng_fptr)mng_delta_idx8; break; case png_ga8: pData->fStorerow = (mng_fptr)mng_delta_ga8; break; case png_rgb8: pData->fStorerow = (mng_fptr)mng_delta_rgb8; break; case png_rgba8: pData->fStorerow = (mng_fptr)mng_delta_rgba8; break; #ifndef MNG_NO_16BIT_SUPPORT case png_g16: pData->fStorerow = (mng_fptr)mng_delta_g16; break; case png_ga16: pData->fStorerow = (mng_fptr)mng_delta_ga16; break; case png_rgb16: pData->fStorerow = (mng_fptr)mng_delta_rgb16; break; case png_rgba16: pData->fStorerow = (mng_fptr)mng_delta_rgba16; break; #endif default: break; } else #endif /* MNG_NO_DELTA_PNG */ switch (pData->ePng_imgtype) { #ifndef MNG_NO_1_2_4BIT_SUPPORT case png_g1: pData->fStorerow = (mng_fptr)mng_store_g1; break; case png_g2: pData->fStorerow = (mng_fptr)mng_store_g2; break; case png_g4: pData->fStorerow = (mng_fptr)mng_store_g4; break; #endif /* MNG_NO_1_2_4BIT_SUPPORT */ case png_g8: pData->fStorerow = (mng_fptr)mng_store_g8; break; #ifndef MNG_NO_1_2_4BIT_SUPPORT case png_idx1: pData->fStorerow = (mng_fptr)mng_store_idx1; break; case png_idx2: pData->fStorerow = (mng_fptr)mng_store_idx2; break; case png_idx4: pData->fStorerow = (mng_fptr)mng_store_idx4; break; #endif /* MNG_NO_1_2_4BIT_SUPPORT */ case png_idx8: pData->fStorerow = (mng_fptr)mng_store_idx8; break; case png_ga8: pData->fStorerow = (mng_fptr)mng_store_ga8; break; case png_rgb8: pData->fStorerow = (mng_fptr)mng_store_rgb8; break; case png_rgba8: pData->fStorerow = (mng_fptr)mng_store_rgba8; break; #ifndef MNG_NO_16BIT_SUPPORT case png_g16: pData->fStorerow = (mng_fptr)mng_store_g16; break; case png_ga16: pData->fStorerow = (mng_fptr)mng_store_ga16; break; case png_rgb16: pData->fStorerow = (mng_fptr)mng_store_rgb16; break; case png_rgba16: pData->fStorerow = (mng_fptr)mng_store_rgba16; break; #endif #ifdef MNG_INCLUDE_JNG #ifndef MNG_NO_1_2_4BIT_SUPPORT case png_jpeg_a1: /* if (pData->iJHDRimgbitdepth == 8) */ { switch (pData->iJHDRcolortype) { case 12 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_g8_a1; break; } case 14 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_rgb8_a1; break; } } } /* TODO: bitdepth 12 & 20 */ break; case png_jpeg_a2: /* if (pData->iJHDRimgbitdepth == 8) */ { switch (pData->iJHDRcolortype) { case 12 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_g8_a2; break; } case 14 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_rgb8_a2; break; } } } break; /* TODO: bitdepth 12 & 20 */ case png_jpeg_a4: /* if (pData->iJHDRimgbitdepth == 8) */ { switch (pData->iJHDRcolortype) { case 12 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_g8_a4; break; } case 14 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_rgb8_a4; break; } } } break; #endif /* MNG_NO_1_2_4BIT_SUPPORT */ /* TODO: bitdepth 12 & 20 */ case png_jpeg_a8: /* if (pData->iJHDRimgbitdepth == 8) */ { switch (pData->iJHDRcolortype) { case 12 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_g8_a8; break; } case 14 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_rgb8_a8; break; } } } break; /* TODO: bitdepth 12 & 20 */ #ifndef MNG_NO_16BIT_SUPPORT case png_jpeg_a16: /* if (pData->iJHDRimgbitdepth == 8) */ { switch (pData->iJHDRcolortype) { case 12 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_g8_a16; break; } case 14 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_rgb8_a16; break; } } } break; /* TODO: bitdepth 12 & 20 */ #endif #endif /* MNG_INCLUDE_JNG */ default: break; } } #ifdef FILTER192 /* leveling & differing ? */ if (pData->iFilter == MNG_FILTER_DIFFERING) switch (pData->ePng_imgtype) { #ifndef MNG_NO_1_2_4BIT_SUPPORT case png_g1: #ifdef MNG_INCLUDE_JNG case png_jpeg_a1: #endif pData->fDifferrow = (mng_fptr)mng_differ_g1; break; case png_g2: #ifdef MNG_INCLUDE_JNG case png_jpeg_a2: #endif pData->fDifferrow = (mng_fptr)mng_differ_g2; break; case png_g4: #ifdef MNG_INCLUDE_JNG case png_jpeg_a4: #endif pData->fDifferrow = (mng_fptr)mng_differ_g4; break; #endif /* MNG_NO_1_2_4BIT_SUPPORT */ case png_g8: #ifdef MNG_INCLUDE_JNG case png_jpeg_a8: #endif pData->fDifferrow = (mng_fptr)mng_differ_g8; break; case png_rgb8: pData->fDifferrow = (mng_fptr)mng_differ_rgb8; break; #ifndef MNG_NO_1_2_4BIT_SUPPORT case png_idx1: pData->fDifferrow = (mng_fptr)mng_differ_idx1; break; case png_idx2: pData->fDifferrow = (mng_fptr)mng_differ_idx2; break; case png_idx4: pData->fDifferrow = (mng_fptr)mng_differ_idx4; break; #endif /* MNG_NO_1_2_4BIT_SUPPORT */ case png_idx8: pData->fDifferrow = (mng_fptr)mng_differ_idx8; break; case png_ga8: pData->fDifferrow = (mng_fptr)mng_differ_ga8; break; case png_rgb8: pData->fDifferrow = (mng_fptr)mng_differ_rgb8; break; case png_rgba8: pData->fDifferrow = (mng_fptr)mng_differ_rgba8; break; #ifndef MNG_NO_16BIT_SUPPORT case png_g16: #ifdef MNG_INCLUDE_JNG case png_jpeg_a16: #endif pData->fDifferrow = (mng_fptr)mng_differ_g16; break; case png_ga16: pData->fDifferrow = (mng_fptr)mng_differ_ga16; break; case png_rgb16: pData->fDifferrow = (mng_fptr)mng_differ_rgb16; break; case png_rgba16: pData->fDifferrow = (mng_fptr)mng_differ_rgba16; break; #endif default: break; } #endif switch (pData->ePng_imgtype) { #ifndef MNG_NO_1_2_4BIT_SUPPORT case png_g1: case png_idx1: #ifdef MNG_INCLUDE_JNG case png_jpeg_a1: #endif pData->iSamplemul = 1; pData->iSampleofs = 7; pData->iSamplediv = 3; pData->iFilterbpp = 1; break; case png_g2: case png_idx2: #ifdef MNG_INCLUDE_JNG case png_jpeg_a2: #endif pData->iSamplemul = 1; pData->iSampleofs = 3; pData->iSamplediv = 2; pData->iFilterbpp = 1; break; case png_g4: case png_idx4: #ifdef MNG_INCLUDE_JNG case png_jpeg_a4: #endif pData->iSamplemul = 1; pData->iSampleofs = 1; pData->iSamplediv = 1; pData->iFilterbpp = 1; break; #endif /* MNG_NO_1_2_4BIT_SUPPORT */ case png_g8: case png_idx8: #ifdef MNG_INCLUDE_JNG case png_jpeg_a8: #endif pData->iSamplemul = 1; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iFilterbpp = 1; break; case png_ga8: #ifndef MNG_NO_16BIT_SUPPORT case png_g16: #ifdef MNG_INCLUDE_JNG case png_jpeg_a16: #endif #endif pData->iSamplemul = 2; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iFilterbpp = 2; break; case png_rgb8: pData->iSamplemul = 3; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iFilterbpp = 3; break; #ifndef MNG_NO_16BIT_SUPPORT case png_ga16: #endif case png_rgba8: pData->iSamplemul = 4; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iFilterbpp = 4; break; #ifndef MNG_NO_16BIT_SUPPORT case png_rgb16: pData->iSamplemul = 6; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iFilterbpp = 6; break; case png_rgba16: pData->iSamplemul = 8; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iFilterbpp = 8; break; #endif default: break; } if (pData->iInterlace) /* noninterlaced */ { pData->iPass = 0; /* from 0..6; (1..7 in specification) */ pData->iRow = interlace_row [0]; pData->iRowinc = interlace_rowskip [0]; pData->iCol = interlace_col [0]; pData->iColinc = interlace_colskip [0]; pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; pData->iRowmax = ((pData->iDatawidth * pData->iSamplemul + pData->iSampleofs) >> pData->iSamplediv) + pData->iPixelofs; } else /* interlaced */ { pData->iPass = -1; pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = pData->iDatawidth; } if (pData->iSamplediv > 0) pData->iRowsize = (pData->iRowsamples + pData->iSampleofs) >> pData->iSamplediv; else pData->iRowsize = (pData->iRowsamples * pData->iSamplemul); if (!pData->iInterlace) /* noninterlaced */ pData->iRowmax = pData->iRowsize + pData->iPixelofs; #ifdef MNG_NO_16BIT_SUPPORT pData->bIsRGBA16 = MNG_FALSE; #else switch (pData->ePng_imgtype) { case png_g16: case png_ga16: case png_rgb16: case png_rgba16: pData->bIsRGBA16 = MNG_TRUE; break; default: pData->bIsRGBA16 = MNG_FALSE; break; } #endif } #endif /* MNG_OPTIMIZE_FOOTPRINT_INIT */ if (pData->pStoreobj) /* storage object selected ? */ { pData->pStorebuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; /* and so it becomes viewable ! */ ((mng_imagep)pData->pStoreobj)->bViewable = MNG_TRUE; ((mng_imagedatap)pData->pStorebuf)->bViewable = MNG_TRUE; } /* allocate the buffers; the individual init routines have already calculated the required maximum size; except in the case of a JNG without alpha!!! */ if (pData->iRowmax) { #if defined(MNG_NO_16BIT_SUPPORT) || defined (MNG_NO_1_2_4BIT_SUPPORT) mng_uint8 iRowadd = 0; #ifdef MNG_NO_1_2_4BIT_SUPPORT if (pData->iPNGdepth < 8) iRowadd=(pData->iPNGdepth*pData->iRowmax+7)/8; #endif #ifdef MNG_NO_16BIT_SUPPORT if (pData->iPNGdepth > 8) iRowadd=pData->iRowmax; #endif MNG_ALLOC (pData, pData->pWorkrow, pData->iRowmax+iRowadd); MNG_ALLOC (pData, pData->pPrevrow, pData->iRowmax+iRowadd); #else MNG_ALLOC (pData, pData->pWorkrow, pData->iRowmax); MNG_ALLOC (pData, pData->pPrevrow, pData->iRowmax); #endif } /* allocate an RGBA16 row for intermediate processing */ MNG_ALLOC (pData, pData->pRGBArow, (pData->iDatawidth << 3)); #ifndef MNG_NO_CMS if (pData->fDisplayrow) /* display "on-the-fly" ? */ { #if defined(MNG_FULL_CMS) /* determine color-management initialization */ mng_retcode iRetcode = mng_init_full_cms (pData, MNG_TRUE, MNG_TRUE, MNG_FALSE); #elif defined(MNG_GAMMA_ONLY) mng_retcode iRetcode = mng_init_gamma_only (pData, MNG_TRUE, MNG_TRUE, MNG_FALSE); #elif defined(MNG_APP_CMS) mng_retcode iRetcode = mng_init_app_cms (pData, MNG_TRUE, MNG_TRUE, MNG_FALSE); #endif if (iRetcode) /* on error bail out */ return iRetcode; } #endif /* !MNG_NO_CMS */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_INIT_ROWPROC, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_next_row (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_NEXT_ROW, MNG_LC_START); #endif pData->iRow += pData->iRowinc; /* increase the row counter */ if (pData->iPass >= 0) /* interlaced ? */ { while ((pData->iPass < 7) && /* went 'outside' the image ? */ ((pData->iRow >= (mng_int32)pData->iDataheight) || (pData->iCol >= (mng_int32)pData->iDatawidth ) )) { pData->iPass++; /* next pass ! */ if (pData->iPass < 7) /* there's only 7 passes ! */ { pData->iRow = interlace_row [pData->iPass]; pData->iRowinc = interlace_rowskip [pData->iPass]; pData->iCol = interlace_col [pData->iPass]; pData->iColinc = interlace_colskip [pData->iPass]; pData->iRowsamples = (pData->iDatawidth - pData->iCol + interlace_roundoff [pData->iPass]) >> interlace_divider [pData->iPass]; if (pData->iSamplemul > 1) /* recalculate row dimension */ pData->iRowsize = pData->iRowsamples * pData->iSamplemul; else if (pData->iSamplediv > 0) pData->iRowsize = (pData->iRowsamples + pData->iSampleofs) >> pData->iSamplediv; else pData->iRowsize = pData->iRowsamples; } if ((pData->iPass < 7) && /* reset previous row to zeroes ? */ (pData->iRow < (mng_int32)pData->iDataheight) && (pData->iCol < (mng_int32)pData->iDatawidth ) ) { /* making sure the filters will work properly! */ mng_int32 iX; mng_uint8p pTemp = pData->pPrevrow; #ifdef MNG_NO_16BIT_SUPPORT #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iPNGmult*pData->iRowsize; iX > 0; iX--) #else for (iX = 0; iX < pData->iPNGmult*pData->iRowsize; iX++) #endif #else #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsize; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsize; iX++) #endif #endif { *pTemp = 0; pTemp++; } } } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_NEXT_ROW, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_cleanup_rowproc (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_CLEANUP_ROWPROC, MNG_LC_START); #endif #ifdef MNG_INCLUDE_LCMS /* cleanup cms profile/transform */ { mng_retcode iRetcode = mng_clear_cms (pData); if (iRetcode) /* on error bail out */ return iRetcode; } #endif /* MNG_INCLUDE_LCMS */ if (pData->pRGBArow) /* cleanup buffer for intermediate row */ MNG_FREEX (pData, pData->pRGBArow, (pData->iDatawidth << 3)); if (pData->pPrevrow) /* cleanup buffer for previous row */ MNG_FREEX (pData, pData->pPrevrow, pData->iRowmax); if (pData->pWorkrow) /* cleanup buffer for working row */ MNG_FREEX (pData, pData->pWorkrow, pData->iRowmax); pData->pWorkrow = MNG_NULL; /* propogate uninitialized buffers */ pData->pPrevrow = MNG_NULL; pData->pRGBArow = MNG_NULL; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_CLEANUP_ROWPROC, MNG_LC_END); #endif return MNG_NOERROR; /* woohiii */ } /* ************************************************************************** */ /* * * */ /* * Generic row processing routines for JNG * */ /* * * */ /* ************************************************************************** */ #ifdef MNG_INCLUDE_JNG /* ************************************************************************** */ mng_retcode mng_display_jpeg_rows (mng_datap pData) { mng_retcode iRetcode; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_JPEG_ROWS, MNG_LC_START); #endif /* any completed rows ? */ if ((pData->iJPEGrow > pData->iJPEGdisprow) && (pData->iJPEGalpharow > pData->iJPEGdisprow) ) { mng_uint32 iX, iMax; mng_uint32 iSaverow = pData->iRow; /* save alpha decompression row-count */ /* determine the highest complete(!) row */ if (pData->iJPEGrow > pData->iJPEGalpharow) iMax = pData->iJPEGalpharow; else iMax = pData->iJPEGrow; /* display the rows */ for (iX = pData->iJPEGdisprow; iX < iMax; iX++) { pData->iRow = iX; /* make sure we all know which row to handle */ /* makeup an intermediate row from the buffer */ iRetcode = ((mng_retrieverow)pData->fRetrieverow) (pData); /* color-correct it if necessary */ if ((!iRetcode) && (pData->fCorrectrow)) iRetcode = ((mng_correctrow)pData->fCorrectrow) (pData); if (!iRetcode) /* and display it */ { iRetcode = ((mng_displayrow)pData->fDisplayrow) (pData); if (!iRetcode) /* check progressive display refresh */ iRetcode = mng_display_progressive_check (pData); } if (iRetcode) /* on error bail out */ return iRetcode; } pData->iJPEGdisprow = iMax; /* keep track of the last displayed row */ pData->iRow = iSaverow; /* restore alpha decompression row-count */ } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DISPLAY_JPEG_ROWS, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_next_jpeg_alpharow (mng_datap pData) { mng_retcode iRetcode; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_NEXT_JPEG_ALPHAROW, MNG_LC_START); #endif pData->iJPEGalpharow++; /* count the row */ if (pData->fDisplayrow) /* display "on-the-fly" ? */ { /* try to display what you can */ iRetcode = mng_display_jpeg_rows (pData); if (iRetcode) /* on error bail out */ return iRetcode; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_NEXT_JPEG_ALPHAROW, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_next_jpeg_row (mng_datap pData) { mng_retcode iRetcode; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_NEXT_JPEG_ROW, MNG_LC_START); #endif pData->iJPEGrow++; /* increase the row-counter */ if (pData->fDisplayrow) /* display "on-the-fly" ? */ { /* has alpha channel ? */ if ((pData->iJHDRcolortype == MNG_COLORTYPE_JPEGGRAYA ) || (pData->iJHDRcolortype == MNG_COLORTYPE_JPEGCOLORA) ) { /* try to display what you can */ iRetcode = mng_display_jpeg_rows (pData); } else { /* make sure we all know which row to handle */ pData->iRow = pData->iJPEGrow - 1; /* makeup an intermediate row from the buffer */ iRetcode = ((mng_retrieverow)pData->fRetrieverow) (pData); /* color-correct it if necessary */ if ((!iRetcode) && (pData->fCorrectrow)) iRetcode = ((mng_correctrow)pData->fCorrectrow) (pData); if (!iRetcode) /* and display it */ { iRetcode = ((mng_displayrow)pData->fDisplayrow) (pData); if (!iRetcode) /* check progressive display refresh */ iRetcode = mng_display_progressive_check (pData); } } if (iRetcode) /* on error bail out */ return iRetcode; } /* surpassed last filled row ? */ if (pData->iJPEGrow > pData->iJPEGrgbrow) pData->iJPEGrgbrow = pData->iJPEGrow; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_NEXT_JPEG_ROW, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #endif /* MNG_INCLUDE_JNG */ /* ************************************************************************** */ #ifndef MNG_SKIPCHUNK_MAGN #ifndef MNG_OPTIMIZE_FOOTPRINT_MAGN #ifndef MNG_NO_GRAY_SUPPORT mng_retcode mng_magnify_g8_x1 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX, iS, iM; mng_uint8p pTempsrc1; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_X1, MNG_LC_START); #endif pTempsrc1 = pSrcline; /* initialize pixel-loop */ pTempdst = pDstline; for (iX = 0; iX < iWidth; iX++) { *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; if (iX == 0) /* first interval ? */ iM = iML; else if (iX == (iWidth - 1)) /* last interval ? */ iM = iMR; else iM = iMX; for (iS = 1; iS < iM; iS++) /* fill interval */ { *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; } pTempsrc1++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_X1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_g8_x2 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM; mng_uint8p pTempsrc1; mng_uint8p pTempsrc2; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_X2, MNG_LC_START); #endif pTempsrc1 = pSrcline; /* initialize pixel-loop */ pTempdst = pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 1; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = iMR; else iM = iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { /* is it same as first ? */ if (*pTempsrc1 == *pTempsrc2) { for (iS = 1; iS < iM; iS++) /* then just repeat the first */ { *pTempdst = *pTempsrc1; pTempdst++; } } else { for (iS = 1; iS < iM; iS++) /* calculate the distances */ { *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2)) + (mng_int32)(*pTempsrc1) ); pTempdst++; } } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; } } } pTempsrc1++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_X2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_g8_x3 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM, iH; mng_uint8p pTempsrc1; mng_uint8p pTempsrc2; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_X3, MNG_LC_START); #endif pTempsrc1 = pSrcline; /* initialize pixel-loop */ pTempdst = pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 1; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = iMR; else iM = iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { /* is it same as first ? */ if (*pTempsrc1 == *pTempsrc2) { for (iS = 1; iS < iM; iS++) /* then just repeat the first */ { *pTempdst = *pTempsrc1; pTempdst++; } } else { iH = (iM+1) / 2; /* calculate halfway point */ for (iS = 1; iS < iH; iS++) /* replicate first half */ { *pTempdst = *pTempsrc1; pTempdst++; } for (iS = iH; iS < iM; iS++) /* replicate second half */ { *pTempdst = *pTempsrc2; pTempdst++; } } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; } } } pTempsrc1++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_X3, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_GRAY_SUPPORT */ /* ************************************************************************** */ mng_retcode mng_magnify_rgb8_x1 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX, iS, iM; mng_uint8p pTempsrc1; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_X1, MNG_LC_START); #endif pTempsrc1 = pSrcline; /* initialize pixel-loop */ pTempdst = pDstline; for (iX = 0; iX < iWidth; iX++) { *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; if (iX == 0) /* first interval ? */ iM = iML; else if (iX == (iWidth - 1)) /* last interval ? */ iM = iMR; else iM = iMX; for (iS = 1; iS < iM; iS++) /* fill interval */ { *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; } pTempsrc1 += 3; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_X1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgb8_x2 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM; mng_uint8p pTempsrc1; mng_uint8p pTempsrc2; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_X2, MNG_LC_START); #endif pTempsrc1 = pSrcline; /* initialize pixel-loop */ pTempdst = pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 3; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = (mng_int32)iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = (mng_int32)iMR; else iM = (mng_int32)iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { for (iS = 1; iS < iM; iS++) { if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; /* just repeat the first */ else /* calculate the distance */ *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2)) + (mng_int32)(*pTempsrc1) ); pTempdst++; if (*(pTempsrc1+1) == *(pTempsrc2+1)) *pTempdst = *(pTempsrc1+1); else *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - (mng_int32)(*(pTempsrc1+1)) ) + iM) / (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); pTempdst++; if (*(pTempsrc1+2) == *(pTempsrc2+2)) *pTempdst = *(pTempsrc1+2); else *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+2)) - (mng_int32)(*(pTempsrc1+2)) ) + iM) / (iM * 2)) + (mng_int32)(*(pTempsrc1+2)) ); pTempdst++; } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; } } } pTempsrc1 += 3; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_X2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgb8_x3 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM, iH; mng_uint8p pTempsrc1; mng_uint8p pTempsrc2; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_X3, MNG_LC_START); #endif pTempsrc1 = pSrcline; /* initialize pixel-loop */ pTempdst = pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 3; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = (mng_int32)iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = (mng_int32)iMR; else iM = (mng_int32)iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { iH = (iM+1) / 2; /* calculate halfway point */ for (iS = 1; iS < iH; iS++) /* replicate first half */ { *pTempdst = *pTempsrc1; *(pTempdst+1) = *(pTempsrc1+1); *(pTempdst+2) = *(pTempsrc1+2); pTempdst += 3; } for (iS = iH; iS < iM; iS++) /* replicate second half */ { *pTempdst = *pTempsrc2; *(pTempdst+1) = *(pTempsrc2+1); *(pTempdst+2) = *(pTempsrc2+2); pTempdst += 3; } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; } } } pTempsrc1 += 3; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_X3, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_GRAY_SUPPORT mng_retcode mng_magnify_ga8_x1 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX, iS, iM; mng_uint8p pTempsrc1; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X1, MNG_LC_START); #endif pTempsrc1 = pSrcline; /* initialize pixel-loop */ pTempdst = pDstline; for (iX = 0; iX < iWidth; iX++) { *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; if (iX == 0) /* first interval ? */ iM = iML; else if (iX == (iWidth - 1)) /* last interval ? */ iM = iMR; else iM = iMX; for (iS = 1; iS < iM; iS++) /* fill interval */ { *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; } pTempsrc1 += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_ga8_x2 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM; mng_uint8p pTempsrc1; mng_uint8p pTempsrc2; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X2, MNG_LC_START); #endif pTempsrc1 = pSrcline; /* initialize pixel-loop */ pTempdst = pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 2; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = iMR; else iM = iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { for (iS = 1; iS < iM; iS++) { if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; /* just repeat the first */ else /* calculate the distance */ *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2)) + (mng_int32)(*pTempsrc1) ); pTempdst++; if (*(pTempsrc1+1) == *(pTempsrc2+1)) *pTempdst = *(pTempsrc1+1); else *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - (mng_int32)(*(pTempsrc1+1)) ) + iM) / (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); pTempdst++; } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; } } } pTempsrc1 += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_ga8_x3 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM, iH; mng_uint8p pTempsrc1; mng_uint8p pTempsrc2; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X3, MNG_LC_START); #endif pTempsrc1 = pSrcline; /* initialize pixel-loop */ pTempdst = pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 2; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = iMR; else iM = iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { iH = (iM+1) / 2; /* calculate halfway point */ for (iS = 1; iS < iH; iS++) /* replicate first half */ { *pTempdst = *pTempsrc1; *(pTempdst+1) = *(pTempsrc1+1); pTempdst += 2; } for (iS = iH; iS < iM; iS++) /* replicate second half */ { *pTempdst = *pTempsrc2; *(pTempdst+1) = *(pTempsrc2+1); pTempdst += 2; } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; } } } pTempsrc1 += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X3, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_ga8_x4 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM, iH; mng_uint8p pTempsrc1; mng_uint8p pTempsrc2; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X4, MNG_LC_START); #endif pTempsrc1 = pSrcline; /* initialize pixel-loop */ pTempdst = pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 2; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = iMR; else iM = iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { iH = (iM+1) / 2; /* calculate halfway point */ for (iS = 1; iS < iH; iS++) /* first half */ { if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; /* just repeat the first */ else /* calculate the distance */ *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2)) + (mng_int32)(*pTempsrc1) ); pTempdst++; *pTempdst = *(pTempsrc1+1); /* replicate alpha from left */ pTempdst++; } for (iS = iH; iS < iM; iS++) /* second half */ { if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; /* just repeat the first */ else /* calculate the distance */ *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2)) + (mng_int32)(*pTempsrc1) ); pTempdst++; *pTempdst = *(pTempsrc2+1); /* replicate alpha from right */ pTempdst++; } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; } } } pTempsrc1 += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X4, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_ga8_x5 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM, iH; mng_uint8p pTempsrc1; mng_uint8p pTempsrc2; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X5, MNG_LC_START); #endif pTempsrc1 = pSrcline; /* initialize pixel-loop */ pTempdst = pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 2; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = iMR; else iM = iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { iH = (iM+1) / 2; /* calculate halfway point */ for (iS = 1; iS < iH; iS++) /* first half */ { *pTempdst = *pTempsrc1; /* replicate gray from left */ pTempdst++; if (*(pTempsrc1+1) == *(pTempsrc2+1)) *pTempdst = *(pTempsrc1+1);/* just repeat the first */ else /* calculate the distance */ *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - (mng_int32)(*(pTempsrc1+1)) ) + iM) / (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); pTempdst++; } for (iS = iH; iS < iM; iS++) /* second half */ { *pTempdst = *pTempsrc2; /* replicate gray from right */ pTempdst++; if (*(pTempsrc1+1) == *(pTempsrc2+1)) *pTempdst = *(pTempsrc1+1);/* just repeat the first */ else /* calculate the distance */ *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - (mng_int32)(*(pTempsrc1+1)) ) + iM) / (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); pTempdst++; } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; } } } pTempsrc1 += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X5, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_GRAY_SUPPORT */ #endif /* MNG_OPTIMIZE_FOOTPRINT_MAGN */ /* ************************************************************************** */ mng_retcode mng_magnify_rgba8_x1 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX, iS, iM; mng_uint8p pTempsrc1; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X1, MNG_LC_START); #endif pTempsrc1 = pSrcline; /* initialize pixel-loop */ pTempdst = pDstline; for (iX = 0; iX < iWidth; iX++) { *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; *pTempdst = *(pTempsrc1+3); pTempdst++; if (iX == 0) /* first interval ? */ iM = iML; else if (iX == (iWidth - 1)) /* last interval ? */ iM = iMR; else iM = iMX; for (iS = 1; iS < iM; iS++) /* fill interval */ { *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; *pTempdst = *(pTempsrc1+3); pTempdst++; } pTempsrc1 += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgba8_x2 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM; mng_uint8p pTempsrc1; mng_uint8p pTempsrc2; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X2, MNG_LC_START); #endif pTempsrc1 = pSrcline; /* initialize pixel-loop */ pTempdst = pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 4; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; *pTempdst = *(pTempsrc1+3); pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = (mng_int32)iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = (mng_int32)iMR; else iM = (mng_int32)iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { for (iS = 1; iS < iM; iS++) { if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; /* just repeat the first */ else /* calculate the distance */ *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2)) + (mng_int32)(*pTempsrc1) ); pTempdst++; if (*(pTempsrc1+1) == *(pTempsrc2+1)) *pTempdst = *(pTempsrc1+1); else *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - (mng_int32)(*(pTempsrc1+1)) ) + iM) / (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); pTempdst++; if (*(pTempsrc1+2) == *(pTempsrc2+2)) *pTempdst = *(pTempsrc1+2); else *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+2)) - (mng_int32)(*(pTempsrc1+2)) ) + iM) / (iM * 2)) + (mng_int32)(*(pTempsrc1+2)) ); pTempdst++; if (*(pTempsrc1+3) == *(pTempsrc2+3)) *pTempdst = *(pTempsrc1+3); else *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+3)) - (mng_int32)(*(pTempsrc1+3)) ) + iM) / (iM * 2)) + (mng_int32)(*(pTempsrc1+3)) ); pTempdst++; } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; *pTempdst = *(pTempsrc1+3); pTempdst++; } } } pTempsrc1 += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgba8_x3 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM, iH; mng_uint8p pTempsrc1; mng_uint8p pTempsrc2; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X3, MNG_LC_START); #endif pTempsrc1 = pSrcline; /* initialize pixel-loop */ pTempdst = pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 4; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; *pTempdst = *(pTempsrc1+3); pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = (mng_int32)iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = (mng_int32)iMR; else iM = (mng_int32)iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { iH = (iM+1) / 2; /* calculate halfway point */ for (iS = 1; iS < iH; iS++) /* replicate first half */ { *pTempdst = *pTempsrc1; *(pTempdst+1) = *(pTempsrc1+1); *(pTempdst+2) = *(pTempsrc1+2); *(pTempdst+3) = *(pTempsrc1+3); pTempdst += 4; } for (iS = iH; iS < iM; iS++) /* replicate second half */ { *pTempdst = *pTempsrc2; *(pTempdst+1) = *(pTempsrc2+1); *(pTempdst+2) = *(pTempsrc2+2); *(pTempdst+3) = *(pTempsrc2+3); pTempdst += 4; } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; *pTempdst = *(pTempsrc1+3); pTempdst++; } } } pTempsrc1 += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X3, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgba8_x4 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM, iH; mng_uint8p pTempsrc1; mng_uint8p pTempsrc2; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X4, MNG_LC_START); #endif pTempsrc1 = pSrcline; /* initialize pixel-loop */ pTempdst = pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 4; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; *pTempdst = *(pTempsrc1+3); pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = (mng_int32)iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = (mng_int32)iMR; else iM = (mng_int32)iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { iH = (iM+1) / 2; /* calculate halfway point */ for (iS = 1; iS < iH; iS++) /* first half */ { if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; /* just repeat the first */ else /* calculate the distance */ *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2)) + (mng_int32)(*pTempsrc1) ); pTempdst++; if (*(pTempsrc1+1) == *(pTempsrc2+1)) *pTempdst = *(pTempsrc1+1); else *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - (mng_int32)(*(pTempsrc1+1)) ) + iM) / (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); pTempdst++; if (*(pTempsrc1+2) == *(pTempsrc2+2)) *pTempdst = *(pTempsrc1+2); else *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+2)) - (mng_int32)(*(pTempsrc1+2)) ) + iM) / (iM * 2)) + (mng_int32)(*(pTempsrc1+2)) ); pTempdst++; /* replicate alpha from left */ *pTempdst = *(pTempsrc1+3); pTempdst++; } for (iS = iH; iS < iM; iS++) /* second half */ { if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; /* just repeat the first */ else /* calculate the distance */ *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2)) + (mng_int32)(*pTempsrc1) ); pTempdst++; if (*(pTempsrc1+1) == *(pTempsrc2+1)) *pTempdst = *(pTempsrc1+1); else *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - (mng_int32)(*(pTempsrc1+1)) ) + iM) / (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); pTempdst++; if (*(pTempsrc1+2) == *(pTempsrc2+2)) *pTempdst = *(pTempsrc1+2); else *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+2)) - (mng_int32)(*(pTempsrc1+2)) ) + iM) / (iM * 2)) + (mng_int32)(*(pTempsrc1+2)) ); pTempdst++; /* replicate alpha from right */ *pTempdst = *(pTempsrc2+3); pTempdst++; } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; *pTempdst = *(pTempsrc1+3); pTempdst++; } } } pTempsrc1 += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X4, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgba8_x5 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM, iH; mng_uint8p pTempsrc1; mng_uint8p pTempsrc2; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X5, MNG_LC_START); #endif pTempsrc1 = pSrcline; /* initialize pixel-loop */ pTempdst = pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 4; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; *pTempdst = *(pTempsrc1+3); pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = (mng_int32)iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = (mng_int32)iMR; else iM = (mng_int32)iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { iH = (iM+1) / 2; /* calculate halfway point */ for (iS = 1; iS < iH; iS++) /* first half */ { *pTempdst = *pTempsrc1; /* replicate color from left */ *(pTempdst+1) = *(pTempsrc1+1); *(pTempdst+2) = *(pTempsrc1+2); if (*(pTempsrc1+3) == *(pTempsrc2+3)) *(pTempdst+3) = *(pTempsrc1+3); else *(pTempdst+3) = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+3)) - (mng_int32)(*(pTempsrc1+3)) ) + iM) / (iM * 2)) + (mng_int32)(*(pTempsrc1+3)) ); pTempdst += 4; } for (iS = iH; iS < iM; iS++) /* second half */ { *pTempdst = *pTempsrc2; /* replicate color from right */ *(pTempdst+1) = *(pTempsrc2+1); *(pTempdst+2) = *(pTempsrc2+2); if (*(pTempsrc1+3) == *(pTempsrc2+3)) *(pTempdst+3) = *(pTempsrc1+3); else *(pTempdst+3) = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+3)) - (mng_int32)(*(pTempsrc1+3)) ) + iM) / (iM * 2)) + (mng_int32)(*(pTempsrc1+3)) ); pTempdst += 4; } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; *pTempdst = *(pTempsrc1+3); pTempdst++; } } } pTempsrc1 += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X4, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_OPTIMIZE_FOOTPRINT_MAGN #ifndef MNG_NO_GRAY_SUPPORT mng_retcode mng_magnify_g8_y1 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_Y1, MNG_LC_START); #endif MNG_COPY (pDstline, pSrcline1, iWidth); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_Y1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_g8_y2 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { mng_uint32 iX; mng_uint8p pTempsrc1; mng_uint8p pTempsrc2; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_Y2, MNG_LC_START); #endif pTempsrc1 = pSrcline1; /* initialize pixel-loop */ pTempsrc2 = pSrcline2; pTempdst = pDstline; if (pTempsrc2) /* do we have a second line ? */ { for (iX = 0; iX < iWidth; iX++) { /* calculate the distances */ if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1++; pTempsrc2++; } } else { /* just repeat the entire line */ MNG_COPY (pTempdst, pTempsrc1, iWidth); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_Y2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_g8_y3 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_Y3, MNG_LC_START); #endif if (pSrcline2) /* do we have a second line ? */ { if (iS < (iM+1) / 2) /* top half ? */ MNG_COPY (pDstline, pSrcline1, iWidth) else MNG_COPY (pDstline, pSrcline2, iWidth); } else { /* just repeat the entire line */ MNG_COPY (pDstline, pSrcline1, iWidth); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_Y3, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_GRAY_SUPPORT */ /* ************************************************************************** */ mng_retcode mng_magnify_rgb8_y1 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_Y1, MNG_LC_START); #endif MNG_COPY (pDstline, pSrcline1, iWidth * 3); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_Y1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgb8_y2 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { mng_uint32 iX; mng_uint8p pTempsrc1; mng_uint8p pTempsrc2; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_Y2, MNG_LC_START); #endif pTempsrc1 = pSrcline1; /* initialize pixel-loop */ pTempsrc2 = pSrcline2; pTempdst = pDstline; if (pTempsrc2) /* do we have a second line ? */ { for (iX = 0; iX < iWidth; iX++) { /* calculate the distances */ if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1++; pTempsrc2++; } } else { /* just repeat the entire line */ MNG_COPY (pTempdst, pTempsrc1, iWidth * 3); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_Y2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgb8_y3 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_Y3, MNG_LC_START); #endif if (pSrcline2) /* do we have a second line ? */ { if (iS < (iM+1) / 2) /* top half ? */ MNG_COPY (pDstline, pSrcline1, iWidth * 3) else MNG_COPY (pDstline, pSrcline2, iWidth * 3); } else { /* just repeat the entire line */ MNG_COPY (pDstline, pSrcline1, iWidth * 3); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_Y3, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_GRAY_SUPPORT mng_retcode mng_magnify_ga8_y1 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y1, MNG_LC_START); #endif MNG_COPY (pDstline, pSrcline1, iWidth << 1); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_ga8_y2 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { mng_uint32 iX; mng_uint8p pTempsrc1; mng_uint8p pTempsrc2; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y2, MNG_LC_START); #endif pTempsrc1 = pSrcline1; /* initialize pixel-loop */ pTempsrc2 = pSrcline2; pTempdst = pDstline; if (pTempsrc2) /* do we have a second line ? */ { for (iX = 0; iX < iWidth; iX++) { /* calculate the distances */ if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1++; pTempsrc2++; } } else { /* just repeat the entire line */ MNG_COPY (pTempdst, pTempsrc1, iWidth << 1); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_ga8_y3 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y3, MNG_LC_START); #endif if (pSrcline2) /* do we have a second line ? */ { if (iS < (iM+1) / 2) /* top half ? */ MNG_COPY (pDstline, pSrcline1, iWidth << 1) else MNG_COPY (pDstline, pSrcline2, iWidth << 1); } else { /* just repeat the entire line */ MNG_COPY (pDstline, pSrcline1, iWidth << 1); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_ga8_y4 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { mng_uint32 iX; mng_uint8p pTempsrc1; mng_uint8p pTempsrc2; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y4, MNG_LC_START); #endif pTempsrc1 = pSrcline1; /* initialize pixel-loop */ pTempsrc2 = pSrcline2; pTempdst = pDstline; if (pTempsrc2) /* do we have a second line ? */ { if (iS < (iM+1) / 2) /* top half ? */ { for (iX = 0; iX < iWidth; iX++) { /* calculate the distances */ if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1++; pTempsrc2 += 2; *pTempdst++ = *pTempsrc1++; /* replicate alpha from top */ } } else { for (iX = 0; iX < iWidth; iX++) { /* calculate the distances */ if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1 += 2; pTempsrc2++; *pTempdst++ = *pTempsrc2++; /* replicate alpha from bottom */ } } } else { /* just repeat the entire line */ MNG_COPY (pTempdst, pTempsrc1, iWidth << 1); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y4, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_ga8_y5 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { mng_uint32 iX; mng_uint8p pTempsrc1; mng_uint8p pTempsrc2; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y5, MNG_LC_START); #endif pTempsrc1 = pSrcline1; /* initialize pixel-loop */ pTempsrc2 = pSrcline2; pTempdst = pDstline; if (pTempsrc2) /* do we have a second line ? */ { if (iS < (iM+1) / 2) /* top half ? */ { for (iX = 0; iX < iWidth; iX++) { *pTempdst = *pTempsrc1; /* replicate gray from top */ pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) /* calculate the distances */ *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1++; pTempsrc2++; } } else { for (iX = 0; iX < iWidth; iX++) { *pTempdst = *pTempsrc2; /* replicate gray from bottom */ pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) /* calculate the distances */ *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1++; pTempsrc2++; } } } else { /* just repeat the entire line */ MNG_COPY (pTempdst, pTempsrc1, iWidth << 1); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y5, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_GRAY_SUPPORT */ #endif /* MNG_OPTIMIZE_FOOTPRINT_MAGN */ /* ************************************************************************** */ mng_retcode mng_magnify_rgba8_y1 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y1, MNG_LC_START); #endif MNG_COPY (pDstline, pSrcline1, iWidth << 2); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgba8_y2 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { mng_uint32 iX; mng_uint8p pTempsrc1; mng_uint8p pTempsrc2; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y2, MNG_LC_START); #endif pTempsrc1 = pSrcline1; /* initialize pixel-loop */ pTempsrc2 = pSrcline2; pTempdst = pDstline; if (pTempsrc2) /* do we have a second line ? */ { for (iX = 0; iX < iWidth; iX++) { /* calculate the distances */ if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1++; pTempsrc2++; } } else { /* just repeat the entire line */ MNG_COPY (pTempdst, pTempsrc1, iWidth << 2); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgba8_y3 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y3, MNG_LC_START); #endif if (pSrcline2) /* do we have a second line ? */ { if (iS < (iM+1) / 2) /* top half ? */ MNG_COPY (pDstline, pSrcline1, iWidth << 2) else MNG_COPY (pDstline, pSrcline2, iWidth << 2); } else { /* just repeat the entire line */ MNG_COPY (pDstline, pSrcline1, iWidth << 2); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgba8_y4 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { mng_uint32 iX; mng_uint8p pTempsrc1; mng_uint8p pTempsrc2; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y4, MNG_LC_START); #endif pTempsrc1 = pSrcline1; /* initialize pixel-loop */ pTempsrc2 = pSrcline2; pTempdst = pDstline; if (pTempsrc2) /* do we have a second line ? */ { if (iS < (iM+1) / 2) /* top half ? */ { for (iX = 0; iX < iWidth; iX++) { /* calculate the distances */ if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1++; pTempsrc2 += 2; *pTempdst++ = *pTempsrc1++; /* replicate alpha from top */ } } else { for (iX = 0; iX < iWidth; iX++) { /* calculate the distances */ if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1 += 2; pTempsrc2++; *pTempdst++ = *pTempsrc2++; /* replicate alpha from bottom */ } } } else { /* just repeat the entire line */ MNG_COPY (pTempdst, pTempsrc1, iWidth << 2); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y4, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgba8_y5 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { mng_uint32 iX; mng_uint8p pTempsrc1; mng_uint8p pTempsrc2; mng_uint8p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y5, MNG_LC_START); #endif pTempsrc1 = pSrcline1; /* initialize pixel-loop */ pTempsrc2 = pSrcline2; pTempdst = pDstline; if (pTempsrc2) /* do we have a second line ? */ { if (iS < (iM+1) / 2) /* top half ? */ { for (iX = 0; iX < iWidth; iX++) { *pTempdst++ = *pTempsrc1++; /* replicate color from top */ *pTempdst++ = *pTempsrc1++; *pTempdst++ = *pTempsrc1++; pTempsrc2 += 3; if (*pTempsrc1 == *pTempsrc2) /* calculate the distances */ *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1++; pTempsrc2++; } } else { for (iX = 0; iX < iWidth; iX++) { *pTempdst++ = *pTempsrc2++; /* replicate color from bottom */ *pTempdst++ = *pTempsrc2++; *pTempdst++ = *pTempsrc2++; pTempsrc1 += 3; if (*pTempsrc1 == *pTempsrc2) /* calculate the distances */ *pTempdst = *pTempsrc1; else *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - (mng_int32)(*pTempsrc1) ) + iM) / (iM * 2) ) + (mng_int32)(*pTempsrc1) ); pTempdst++; pTempsrc1++; pTempsrc2++; } } } else { /* just repeat the entire line */ MNG_COPY (pTempdst, pTempsrc1, iWidth << 2); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y5, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_OPTIMIZE_FOOTPRINT_MAGN #ifndef MNG_NO_16BIT_SUPPORT #ifndef MNG_NO_GRAY_SUPPORT mng_retcode mng_magnify_g16_x1 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX, iS, iM; mng_uint16p pTempsrc1; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_X1, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ pTempdst = (mng_uint16p)pDstline; for (iX = 0; iX < iWidth; iX++) { *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; if (iX == 0) /* first interval ? */ iM = iML; else if (iX == (iWidth - 1)) /* last interval ? */ iM = iMR; else iM = iMX; for (iS = 1; iS < iM; iS++) /* fill interval */ { *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; } pTempsrc1++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_X1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_g16_x2 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM; mng_uint16p pTempsrc1; mng_uint16p pTempsrc2; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_X2, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ pTempdst = (mng_uint16p)pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 1; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = iMR; else iM = iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { /* is it same as first ? */ if (*pTempsrc1 == *pTempsrc2) { for (iS = 1; iS < iM; iS++) /* then just repeat the first */ { *pTempdst = *pTempsrc1; pTempdst++; } } else { for (iS = 1; iS < iM; iS++) /* calculate the distances */ { mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) )); pTempdst++; } } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; } } } pTempsrc1++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_X2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_g16_x3 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM, iH; mng_uint16p pTempsrc1; mng_uint16p pTempsrc2; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_X3, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ pTempdst = (mng_uint16p)pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 1; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = iMR; else iM = iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { /* is it same as first ? */ if (*pTempsrc1 == *pTempsrc2) { for (iS = 1; iS < iM; iS++) /* then just repeat the first */ { *pTempdst = *pTempsrc1; pTempdst++; } } else { iH = (iM+1) / 2; /* calculate halfway point */ for (iS = 1; iS < iH; iS++) /* replicate first half */ { *pTempdst = *pTempsrc1; pTempdst++; } for (iS = iH; iS < iM; iS++) /* replicate second half */ { *pTempdst = *pTempsrc2; pTempdst++; } } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; } } } pTempsrc1++; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_X3, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_GRAY_SUPPORT */ /* ************************************************************************** */ mng_retcode mng_magnify_rgb16_x1 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX, iS, iM; mng_uint16p pTempsrc1; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_X1, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ pTempdst = (mng_uint16p)pDstline; for (iX = 0; iX < iWidth; iX++) { *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; if (iX == 0) /* first interval ? */ iM = iML; else if (iX == (iWidth - 1)) /* last interval ? */ iM = iMR; else iM = iMX; for (iS = 1; iS < iM; iS++) /* fill interval */ { *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; } pTempsrc1 += 3; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_X1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgb16_x2 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM; mng_uint16p pTempsrc1; mng_uint16p pTempsrc2; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_X2, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ pTempdst = (mng_uint16p)pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 3; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = (mng_int32)iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = (mng_int32)iMR; else iM = (mng_int32)iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { for (iS = 1; iS < iM; iS++) { if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; /* just repeat the first */ else /* calculate the distance */ mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; if (*(pTempsrc1+1) == *(pTempsrc2+1)) *pTempdst = *(pTempsrc1+1); else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+1))) - (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) ); pTempdst++; if (*(pTempsrc1+2) == *(pTempsrc2+2)) *pTempdst = *(pTempsrc1+2); else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+2))) - (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+2))) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+2))) ) ); pTempdst++; } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; } } } pTempsrc1 += 3; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_X2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgb16_x3 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM, iH; mng_uint16p pTempsrc1; mng_uint16p pTempsrc2; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_X3, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ pTempdst = (mng_uint16p)pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 3; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = (mng_int32)iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = (mng_int32)iMR; else iM = (mng_int32)iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { iH = (iM+1) / 2; /* calculate halfway point */ for (iS = 1; iS < iH; iS++) /* replicate first half */ { *pTempdst = *pTempsrc1; *(pTempdst+1) = *(pTempsrc1+1); *(pTempdst+2) = *(pTempsrc1+2); pTempdst += 3; } for (iS = iH; iS < iM; iS++) /* replicate second half */ { *pTempdst = *pTempsrc2; *(pTempdst+1) = *(pTempsrc2+1); *(pTempdst+2) = *(pTempsrc2+2); pTempdst += 3; } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; } } } pTempsrc1 += 3; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_X3, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_GRAY_SUPPORT mng_retcode mng_magnify_ga16_x1 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX, iS, iM; mng_uint16p pTempsrc1; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_X1, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p) pSrcline; /* initialize pixel-loop */ pTempdst = (mng_uint16p)pDstline; for (iX = 0; iX < iWidth; iX++) { *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; if (iX == 0) /* first interval ? */ iM = iML; else if (iX == (iWidth - 1)) /* last interval ? */ iM = iMR; else iM = iMX; for (iS = 1; iS < iM; iS++) /* fill interval */ { *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; } pTempsrc1 += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_X1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_ga16_x2 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM; mng_uint16p pTempsrc1; mng_uint16p pTempsrc2; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_X2, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ pTempdst = (mng_uint16p)pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 2; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = iMR; else iM = iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { for (iS = 1; iS < iM; iS++) { if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; /* just repeat the first */ else /* calculate the distance */ mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; if (*(pTempsrc1+1) == *(pTempsrc2+1)) *pTempdst = *(pTempsrc1+1); else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+1))) - (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) ); pTempdst++; } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; } } } pTempsrc1 += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_X2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_ga16_x3 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM, iH; mng_uint16p pTempsrc1; mng_uint16p pTempsrc2; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_X3, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ pTempdst = (mng_uint16p)pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 2; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = iMR; else iM = iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { iH = (iM+1) / 2; /* calculate halfway point */ for (iS = 1; iS < iH; iS++) /* replicate first half */ { *pTempdst = *pTempsrc1; *(pTempdst+1) = *(pTempsrc1+1); pTempdst += 2; } for (iS = iH; iS < iM; iS++) /* replicate second half */ { *pTempdst = *pTempsrc2; *(pTempdst+1) = *(pTempsrc2+1); pTempdst += 2; } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; } } } pTempsrc1 += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_X3, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_ga16_x4 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM, iH; mng_uint16p pTempsrc1; mng_uint16p pTempsrc2; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_X4, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ pTempdst = (mng_uint16p)pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 2; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = iMR; else iM = iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { iH = (iM+1) / 2; /* calculate halfway point */ for (iS = 1; iS < iH; iS++) /* first half */ { if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; /* just repeat the first */ else /* calculate the distance */ mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; *pTempdst = *(pTempsrc1+1); /* replicate alpha from left */ pTempdst++; } for (iS = iH; iS < iM; iS++) /* second half */ { if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; /* just repeat the first */ else /* calculate the distance */ mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; *pTempdst = *(pTempsrc2+1); /* replicate alpha from right */ pTempdst++; } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; } } } pTempsrc1 += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_X4, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_ga16_x5 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM, iH; mng_uint16p pTempsrc1; mng_uint16p pTempsrc2; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_X5, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ pTempdst = (mng_uint16p)pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 2; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = iMR; else iM = iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { iH = (iM+1) / 2; /* calculate halfway point */ for (iS = 1; iS < iH; iS++) /* first half */ { *pTempdst = *pTempsrc1; /* replicate gray from left */ pTempdst++; if (*(pTempsrc1+1) == *(pTempsrc2+1)) *pTempdst = *(pTempsrc1+1);/* just repeat the first */ else /* calculate the distance */ mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+1))) - (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) ); pTempdst++; } for (iS = iH; iS < iM; iS++) /* second half */ { *pTempdst = *pTempsrc2; /* replicate gray from right */ pTempdst++; if (*(pTempsrc1+1) == *(pTempsrc2+1)) *pTempdst = *(pTempsrc1+1);/* just repeat the first */ else /* calculate the distance */ mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+1))) - (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) ); pTempdst++; } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; } } } pTempsrc1 += 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_X5, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_GRAY_SUPPORT */ /* ************************************************************************** */ mng_retcode mng_magnify_rgba16_x1 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX, iS, iM; mng_uint16p pTempsrc1; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_X1, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ pTempdst = (mng_uint16p)pDstline; for (iX = 0; iX < iWidth; iX++) { *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; *pTempdst = *(pTempsrc1+3); pTempdst++; if (iX == 0) /* first interval ? */ iM = iML; else if (iX == (iWidth - 1)) /* last interval ? */ iM = iMR; else iM = iMX; for (iS = 1; iS < iM; iS++) /* fill interval */ { *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; *pTempdst = *(pTempsrc1+3); pTempdst++; } pTempsrc1 += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_X1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgba16_x2 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM; mng_uint16p pTempsrc1; mng_uint16p pTempsrc2; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_X2, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ pTempdst = (mng_uint16p)pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 4; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; *pTempdst = *(pTempsrc1+3); pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = (mng_int32)iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = (mng_int32)iMR; else iM = (mng_int32)iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { for (iS = 1; iS < iM; iS++) { if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; /* just repeat the first */ else /* calculate the distance */ mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; if (*(pTempsrc1+1) == *(pTempsrc2+1)) *pTempdst = *(pTempsrc1+1); else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+1))) - (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) ); pTempdst++; if (*(pTempsrc1+2) == *(pTempsrc2+2)) *pTempdst = *(pTempsrc1+2); else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+2))) - (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+2))) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+2))) ) ); pTempdst++; if (*(pTempsrc1+3) == *(pTempsrc2+3)) *pTempdst = *(pTempsrc1+3); else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+3))) - (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+3))) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+3))) ) ); pTempdst++; } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; *pTempdst = *(pTempsrc1+3); pTempdst++; } } } pTempsrc1 += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_X2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgba16_x3 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM, iH; mng_uint16p pTempsrc1; mng_uint16p pTempsrc2; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_X3, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ pTempdst = (mng_uint16p)pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 4; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; *pTempdst = *(pTempsrc1+3); pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = (mng_int32)iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = (mng_int32)iMR; else iM = (mng_int32)iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { iH = (iM+1) / 2; /* calculate halfway point */ for (iS = 1; iS < iH; iS++) /* replicate first half */ { *pTempdst = *pTempsrc1; *(pTempdst+1) = *(pTempsrc1+1); *(pTempdst+2) = *(pTempsrc1+2); *(pTempdst+3) = *(pTempsrc1+3); pTempdst += 4; } for (iS = iH; iS < iM; iS++) /* replicate second half */ { *pTempdst = *pTempsrc2; *(pTempdst+1) = *(pTempsrc2+1); *(pTempdst+2) = *(pTempsrc2+2); *(pTempdst+3) = *(pTempsrc2+3); pTempdst += 4; } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; *pTempdst = *(pTempsrc1+3); pTempdst++; } } } pTempsrc1 += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_X3, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgba16_x4 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM, iH; mng_uint16p pTempsrc1; mng_uint16p pTempsrc2; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_X4, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ pTempdst = (mng_uint16p)pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 4; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; *pTempdst = *(pTempsrc1+3); pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = (mng_int32)iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = (mng_int32)iMR; else iM = (mng_int32)iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { iH = (iM+1) / 2; /* calculate halfway point */ for (iS = 1; iS < iH; iS++) /* first half */ { if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; /* just repeat the first */ else /* calculate the distance */ mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; if (*(pTempsrc1+1) == *(pTempsrc2+1)) *pTempdst = *(pTempsrc1+1); else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+1))) - (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) ); pTempdst++; if (*(pTempsrc1+2) == *(pTempsrc2+2)) *pTempdst = *(pTempsrc1+2); else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+2))) - (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+2))) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+2))) ) ); pTempdst++; /* replicate alpha from left */ *pTempdst = *(pTempsrc1+3); pTempdst++; } for (iS = iH; iS < iM; iS++) /* second half */ { if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; /* just repeat the first */ else /* calculate the distance */ mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; if (*(pTempsrc1+1) == *(pTempsrc2+1)) *pTempdst = *(pTempsrc1+1); else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+1))) - (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) ); pTempdst++; if (*(pTempsrc1+2) == *(pTempsrc2+2)) *pTempdst = *(pTempsrc1+2); else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+2))) - (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+2))) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+2))) ) ); pTempdst++; /* replicate alpha from right */ *pTempdst = *(pTempsrc2+3); pTempdst++; } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; *pTempdst = *(pTempsrc1+3); pTempdst++; } } } pTempsrc1 += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_X4, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgba16_x5 (mng_datap pData, mng_uint16 iMX, mng_uint16 iML, mng_uint16 iMR, mng_uint32 iWidth, mng_uint8p pSrcline, mng_uint8p pDstline) { mng_uint32 iX; mng_int32 iS, iM, iH; mng_uint16p pTempsrc1; mng_uint16p pTempsrc2; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_X5, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ pTempdst = (mng_uint16p)pDstline; for (iX = 0; iX < iWidth; iX++) { pTempsrc2 = pTempsrc1 + 4; *pTempdst = *pTempsrc1; /* copy original source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; *pTempdst = *(pTempsrc1+3); pTempdst++; if (iX == 0) /* first interval ? */ { if (iWidth == 1) /* single pixel ? */ pTempsrc2 = MNG_NULL; iM = (mng_int32)iML; } else if (iX == (iWidth - 2)) /* last interval ? */ iM = (mng_int32)iMR; else iM = (mng_int32)iMX; /* fill interval ? */ if ((iX < iWidth - 1) || (iWidth == 1)) { if (pTempsrc2) /* do we have the second pixel ? */ { iH = (iM+1) / 2; /* calculate halfway point */ for (iS = 1; iS < iH; iS++) /* first half */ { *pTempdst = *pTempsrc1; /* replicate color from left */ *(pTempdst+1) = *(pTempsrc1+1); *(pTempdst+2) = *(pTempsrc1+2); if (*(pTempsrc1+3) == *(pTempsrc2+3)) *(pTempdst+3) = *(pTempsrc1+3); else mng_put_uint16 ((mng_uint8p)(pTempdst+3), (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+3))) - (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+3))) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+3))) ) ); pTempdst += 4; } for (iS = iH; iS < iM; iS++) /* second half */ { *pTempdst = *pTempsrc2; /* replicate color from right */ *(pTempdst+1) = *(pTempsrc2+1); *(pTempdst+2) = *(pTempsrc2+2); if (*(pTempsrc1+3) == *(pTempsrc2+3)) *(pTempdst+3) = *(pTempsrc1+3); else mng_put_uint16 ((mng_uint8p)(pTempdst+3), (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+3))) - (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+3))) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+3))) ) ); pTempdst += 4; } } else { for (iS = 1; iS < iM; iS++) { *pTempdst = *pTempsrc1; /* repeat first source pixel */ pTempdst++; *pTempdst = *(pTempsrc1+1); pTempdst++; *pTempdst = *(pTempsrc1+2); pTempdst++; *pTempdst = *(pTempsrc1+3); pTempdst++; } } } pTempsrc1 += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_X4, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_GRAY_SUPPORT mng_retcode mng_magnify_g16_y1 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_Y1, MNG_LC_START); #endif MNG_COPY (pDstline, pSrcline1, (iWidth << 1)); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_Y1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_g16_y2 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { mng_uint32 iX; mng_uint16p pTempsrc1; mng_uint16p pTempsrc2; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_Y2, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline1; /* initialize pixel-loop */ pTempsrc2 = (mng_uint16p)pSrcline2; pTempdst = (mng_uint16p)pDstline; if (pTempsrc2) /* do we have a second line ? */ { for (iX = 0; iX < iWidth; iX++) { /* calculate the distances */ if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1++; pTempsrc2++; } } else { /* just repeat the entire line */ MNG_COPY (pTempdst, pTempsrc1, (iWidth << 1)); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_Y2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_g16_y3 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_Y3, MNG_LC_START); #endif if (pSrcline2) /* do we have a second line ? */ { if (iS < (iM+1) / 2) /* top half ? */ MNG_COPY (pDstline, pSrcline1, (iWidth << 1)) else MNG_COPY (pDstline, pSrcline2, (iWidth << 1)); } else { /* just repeat the entire line */ MNG_COPY (pDstline, pSrcline1, (iWidth << 1)); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_Y3, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_GRAY_SUPPORT */ /* ************************************************************************** */ mng_retcode mng_magnify_rgb16_y1 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_Y1, MNG_LC_START); #endif MNG_COPY (pDstline, pSrcline1, iWidth * 6); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_Y1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgb16_y2 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { mng_uint32 iX; mng_uint16p pTempsrc1; mng_uint16p pTempsrc2; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_Y2, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline1; /* initialize pixel-loop */ pTempsrc2 = (mng_uint16p)pSrcline2; pTempdst = (mng_uint16p)pDstline; if (pTempsrc2) /* do we have a second line ? */ { for (iX = 0; iX < iWidth; iX++) { /* calculate the distances */ if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1++; pTempsrc2++; } } else { /* just repeat the entire line */ MNG_COPY (pTempdst, pTempsrc1, iWidth * 6); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_Y2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgb16_y3 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_Y3, MNG_LC_START); #endif if (pSrcline2) /* do we have a second line ? */ { if (iS < (iM+1) / 2) /* top half ? */ MNG_COPY (pDstline, pSrcline1, iWidth * 6) else MNG_COPY (pDstline, pSrcline2, iWidth * 6); } else { /* just repeat the entire line */ MNG_COPY (pDstline, pSrcline1, iWidth * 6); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_Y3, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_GRAY_SUPPORT mng_retcode mng_magnify_ga16_y1 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_Y1, MNG_LC_START); #endif MNG_COPY (pDstline, pSrcline1, (iWidth << 2)); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_Y1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_ga16_y2 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { mng_uint32 iX; mng_uint16p pTempsrc1; mng_uint16p pTempsrc2; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_Y2, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline1; /* initialize pixel-loop */ pTempsrc2 = (mng_uint16p)pSrcline2; pTempdst = (mng_uint16p)pDstline; if (pTempsrc2) /* do we have a second line ? */ { for (iX = 0; iX < iWidth; iX++) { /* calculate the distances */ if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1++; pTempsrc2++; } } else { /* just repeat the entire line */ MNG_COPY (pTempdst, pTempsrc1, (iWidth << 2)); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_Y2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_ga16_y3 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_Y3, MNG_LC_START); #endif if (pSrcline2) /* do we have a second line ? */ { if (iS < (iM+1) / 2) /* top half ? */ MNG_COPY (pDstline, pSrcline1, (iWidth << 2)) else MNG_COPY (pDstline, pSrcline2, (iWidth << 2)); } else { /* just repeat the entire line */ MNG_COPY (pDstline, pSrcline1, (iWidth << 2)); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_Y2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_ga16_y4 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { mng_uint32 iX; mng_uint16p pTempsrc1; mng_uint16p pTempsrc2; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_Y4, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline1; /* initialize pixel-loop */ pTempsrc2 = (mng_uint16p)pSrcline2; pTempdst = (mng_uint16p)pDstline; if (pTempsrc2) /* do we have a second line ? */ { if (iS < (iM+1) / 2) /* top half ? */ { for (iX = 0; iX < iWidth; iX++) { /* calculate the distances */ if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1++; pTempsrc2 += 2; *pTempdst++ = *pTempsrc1++; /* replicate alpha from top */ } } else { for (iX = 0; iX < iWidth; iX++) { /* calculate the distances */ if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1 += 2; pTempsrc2++; *pTempdst++ = *pTempsrc2++; /* replicate alpha from bottom */ } } } else { /* just repeat the entire line */ MNG_COPY (pTempdst, pTempsrc1, (iWidth << 2)); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_Y4, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_ga16_y5 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { mng_uint32 iX; mng_uint16p pTempsrc1; mng_uint16p pTempsrc2; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_Y5, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline1; /* initialize pixel-loop */ pTempsrc2 = (mng_uint16p)pSrcline2; pTempdst = (mng_uint16p)pDstline; if (pTempsrc2) /* do we have a second line ? */ { if (iS < (iM+1) / 2) /* top half ? */ { for (iX = 0; iX < iWidth; iX++) { *pTempdst = *pTempsrc1; /* replicate gray from top */ pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) /* calculate the distances */ *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1++; pTempsrc2++; } } else { for (iX = 0; iX < iWidth; iX++) { *pTempdst = *pTempsrc2; /* replicate gray from bottom */ pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) /* calculate the distances */ *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1++; pTempsrc2++; } } } else { /* just repeat the entire line */ MNG_COPY (pTempdst, pTempsrc1, (iWidth << 2)); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_Y5, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_GRAY_SUPPORT */ /* ************************************************************************** */ mng_retcode mng_magnify_rgba16_y1 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_Y1, MNG_LC_START); #endif MNG_COPY (pDstline, pSrcline1, (iWidth << 3)); #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_Y1, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgba16_y2 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { mng_uint32 iX; mng_uint16p pTempsrc1; mng_uint16p pTempsrc2; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_Y2, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline1; /* initialize pixel-loop */ pTempsrc2 = (mng_uint16p)pSrcline2; pTempdst = (mng_uint16p)pDstline; if (pTempsrc2) /* do we have a second line ? */ { for (iX = 0; iX < iWidth; iX++) { /* calculate the distances */ if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1++; pTempsrc2++; } } else { /* just repeat the entire line */ MNG_COPY (pTempdst, pTempsrc1, (iWidth << 3)); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_Y2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgba16_y3 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_Y3, MNG_LC_START); #endif if (pSrcline2) /* do we have a second line ? */ { if (iS < (iM+1) / 2) /* top half ? */ MNG_COPY (pDstline, pSrcline1, (iWidth << 3)) else MNG_COPY (pDstline, pSrcline2, (iWidth << 3)); } else { /* just repeat the entire line */ MNG_COPY (pDstline, pSrcline1, (iWidth << 3)); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_Y2, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgba16_y4 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { mng_uint32 iX; mng_uint16p pTempsrc1; mng_uint16p pTempsrc2; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_Y4, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline1; /* initialize pixel-loop */ pTempsrc2 = (mng_uint16p)pSrcline2; pTempdst = (mng_uint16p)pDstline; if (pTempsrc2) /* do we have a second line ? */ { if (iS < (iM+1) / 2) /* top half ? */ { for (iX = 0; iX < iWidth; iX++) { /* calculate the distances */ if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1++; pTempsrc2 += 2; *pTempdst++ = *pTempsrc1++; /* replicate alpha from top */ } } else { for (iX = 0; iX < iWidth; iX++) { /* calculate the distances */ if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1++; pTempsrc2++; if (*pTempsrc1 == *pTempsrc2) *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1 += 2; pTempsrc2++; *pTempdst++ = *pTempsrc2++; /* replicate alpha from bottom */ } } } else { /* just repeat the entire line */ MNG_COPY (pTempdst, pTempsrc1, (iWidth << 3)); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_Y4, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode mng_magnify_rgba16_y5 (mng_datap pData, mng_int32 iS, mng_int32 iM, mng_uint32 iWidth, mng_uint8p pSrcline1, mng_uint8p pSrcline2, mng_uint8p pDstline) { mng_uint32 iX; mng_uint16p pTempsrc1; mng_uint16p pTempsrc2; mng_uint16p pTempdst; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_Y5, MNG_LC_START); #endif pTempsrc1 = (mng_uint16p)pSrcline1; /* initialize pixel-loop */ pTempsrc2 = (mng_uint16p)pSrcline2; pTempdst = (mng_uint16p)pDstline; if (pTempsrc2) /* do we have a second line ? */ { if (iS < (iM+1) / 2) /* top half ? */ { for (iX = 0; iX < iWidth; iX++) { *pTempdst++ = *pTempsrc1++; /* replicate color from top */ *pTempdst++ = *pTempsrc1++; *pTempdst++ = *pTempsrc1++; pTempsrc2 += 3; if (*pTempsrc1 == *pTempsrc2) /* calculate the distances */ *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1++; pTempsrc2++; } } else { for (iX = 0; iX < iWidth; iX++) { *pTempdst++ = *pTempsrc2++; /* replicate color from bottom */ *pTempdst++ = *pTempsrc2++; *pTempdst++ = *pTempsrc2++; pTempsrc1 += 3; if (*pTempsrc1 == *pTempsrc2) /* calculate the distances */ *pTempdst = *pTempsrc1; else mng_put_uint16 ((mng_uint8p)pTempdst, (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); pTempdst++; pTempsrc1++; pTempsrc2++; } } } else { /* just repeat the entire line */ MNG_COPY (pTempdst, pTempsrc1, (iWidth << 3)); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_Y5, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_NO_16BIT_SUPPORT */ #endif /* MNG_OPTIMIZE_FOOTPRINT_MAGN */ #endif /* MNG_SKIPCHUNK_MAGN */ /* ************************************************************************** */ /* * * */ /* * PAST composition routines - compose over/under with a target object * */ /* * * */ /* ************************************************************************** */ #ifndef MNG_SKIPCHUNK_PAST mng_retcode mng_composeover_rgba8 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iFGa8, iBGa8; mng_uint8 iCr8, iCg8, iCb8, iCa8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_COMPOSEOVER_RGBA8, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iFGa8 = *(pWorkrow+3); /* get alpha values */ iBGa8 = *(pOutrow+3); if (iFGa8) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa8 == 0xFF) || (iBGa8 == 0)) { /* then simply copy the values */ *pOutrow = *pWorkrow; *(pOutrow+1) = *(pWorkrow+1); *(pOutrow+2) = *(pWorkrow+2); *(pOutrow+3) = iFGa8; } else { if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do alpha composing */ #ifdef MNG_OPTIMIZE_FOOTPRINT_COMPOSE int i; for (i=2; i >= 0; i--) { MNG_COMPOSE8 (*(pOutrow+i), *(pWorkrow+i), iFGa8, *(pOutrow+i)); } #else MNG_COMPOSE8 (*pOutrow, *pWorkrow, iFGa8, *pOutrow ); MNG_COMPOSE8 (*(pOutrow+1), *(pWorkrow+1), iFGa8, *(pOutrow+1)); MNG_COMPOSE8 (*(pOutrow+2), *(pWorkrow+2), iFGa8, *(pOutrow+2)); #endif /* alpha remains fully opaque !!! */ } else { /* here we'll have to blend */ MNG_BLEND8 (*pWorkrow, *(pWorkrow+1), *(pWorkrow+2), iFGa8, *pOutrow, *(pOutrow+1), *(pOutrow+2), iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pOutrow = iCr8; *(pOutrow+1) = iCg8; *(pOutrow+2) = iCb8; *(pOutrow+3) = iCa8; } } } pOutrow += 4; pWorkrow += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_COMPOSEOVER_RGBA8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_composeover_rgba16 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint16p pWorkrow; mng_uint16p pOutrow; mng_int32 iX; mng_uint16 iFGa16, iFGr16, iFGg16, iFGb16; mng_uint16 iBGa16, iBGr16, iBGg16, iBGb16; mng_uint16 iCr16, iCg16, iCb16, iCa16; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_COMPOSEOVER_RGBA16, MNG_LC_START); #endif pWorkrow = (mng_uint16p)pData->pRGBArow; pOutrow = (mng_uint16p)(pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize)); #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { /* get alpha values */ iFGa16 = mng_get_uint16 ((mng_uint8p)(pWorkrow+3)); iBGa16 = mng_get_uint16 ((mng_uint8p)(pOutrow+3)); if (iFGa16) /* any opacity at all ? */ { /* fully opaque or background fully transparent ? */ if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) { /* then simply copy the values */ *pOutrow = *pWorkrow; *(pOutrow+1) = *(pWorkrow+1); *(pOutrow+2) = *(pWorkrow+2); *(pOutrow+3) = *(pWorkrow+3); } else { /* get color values */ iFGr16 = mng_get_uint16 ((mng_uint8p)pWorkrow); iFGg16 = mng_get_uint16 ((mng_uint8p)(pWorkrow+1)); iFGb16 = mng_get_uint16 ((mng_uint8p)(pWorkrow+2)); iBGr16 = mng_get_uint16 ((mng_uint8p)pOutrow); iBGg16 = mng_get_uint16 ((mng_uint8p)(pOutrow+1)); iBGb16 = mng_get_uint16 ((mng_uint8p)(pOutrow+2)); if (iBGa16 == 0xFFFF) /* background fully opaque ? */ { /* do alpha composing */ MNG_COMPOSE16 (iFGr16, iFGr16, iFGa16, iBGr16); MNG_COMPOSE16 (iFGg16, iFGg16, iFGa16, iBGg16); MNG_COMPOSE16 (iFGb16, iFGb16, iFGa16, iBGb16); mng_put_uint16 ((mng_uint8p)pOutrow, iFGr16); mng_put_uint16 ((mng_uint8p)(pOutrow+1), iFGg16); mng_put_uint16 ((mng_uint8p)(pOutrow+2), iFGb16); /* alpha remains fully opaque !!! */ } else { /* here we'll have to blend */ MNG_BLEND16 (iFGr16, iFGg16, iFGb16, iFGa16, iBGr16, iBGg16, iBGb16, iBGa16, iCr16, iCg16, iCb16, iCa16); /* and return the composed values */ mng_put_uint16 ((mng_uint8p)pOutrow, iCr16); mng_put_uint16 ((mng_uint8p)(pOutrow+1), iCg16); mng_put_uint16 ((mng_uint8p)(pOutrow+2), iCb16); mng_put_uint16 ((mng_uint8p)(pOutrow+3), iCa16); } } } pOutrow += 4; pWorkrow += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_COMPOSEOVER_RGBA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_composeunder_rgba8 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint8p pWorkrow; mng_uint8p pOutrow; mng_int32 iX; mng_uint8 iFGa8, iBGa8; mng_uint8 iCr8, iCg8, iCb8, iCa8; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_COMPOSEUNDER_RGBA8, MNG_LC_START); #endif pWorkrow = pData->pRGBArow; pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize); #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { iFGa8 = *(pOutrow+3); /* get alpha values */ iBGa8 = *(pWorkrow+3); /* anything to do at all ? */ if ((iBGa8) && (iFGa8 != 0xFF)) { if (iBGa8 == 0xFF) /* background fully opaque ? */ { /* do alpha composing */ #ifdef MNG_OPTIMIZE_FOOTPRINT_COMPOSE int i; for (i=2; i >= 0; i--) { MNG_COMPOSE8 (*(pOutrow+i), *(pOutrow+i), iFGa8, *(pWorkrow+i)); } #else MNG_COMPOSE8 (*pOutrow, *pOutrow, iFGa8, *pWorkrow ); MNG_COMPOSE8 (*(pOutrow+1), *(pOutrow+1), iFGa8, *(pWorkrow+1)); MNG_COMPOSE8 (*(pOutrow+2), *(pOutrow+2), iFGa8, *(pWorkrow+2)); #endif *(pOutrow+3) = 0xFF; /* alpha becomes fully opaque !!! */ } else { /* here we'll have to blend */ MNG_BLEND8 (*pOutrow, *(pOutrow+1), *(pOutrow+2), iFGa8, *pWorkrow, *(pWorkrow+1), *(pWorkrow+2), iBGa8, iCr8, iCg8, iCb8, iCa8); /* and return the composed values */ *pOutrow = iCr8; *(pOutrow+1) = iCg8; *(pOutrow+2) = iCb8; *(pOutrow+3) = iCa8; } } pOutrow += 4; pWorkrow += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_COMPOSEUNDER_RGBA8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_composeunder_rgba16 (mng_datap pData) { mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; mng_uint16p pWorkrow; mng_uint16p pOutrow; mng_int32 iX; mng_uint16 iFGa16, iFGr16, iFGg16, iFGb16; mng_uint16 iBGa16, iBGr16, iBGg16, iBGb16; mng_uint16 iCr16, iCg16, iCb16, iCa16; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_COMPOSEUNDER_RGBA16, MNG_LC_START); #endif pWorkrow = (mng_uint16p)pData->pRGBArow; pOutrow = (mng_uint16p)(pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + (pData->iCol * pBuf->iSamplesize)); #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { /* get alpha values */ iFGa16 = mng_get_uint16 ((mng_uint8p)(pOutrow+3)); iBGa16 = mng_get_uint16 ((mng_uint8p)(pWorkrow+3)); /* anything to do at all ? */ if ((iBGa16) && (iFGa16 != 0xFFFF)) { iFGr16 = mng_get_uint16 ((mng_uint8p)pOutrow); iFGg16 = mng_get_uint16 ((mng_uint8p)(pOutrow+1)); iFGb16 = mng_get_uint16 ((mng_uint8p)(pOutrow+2)); iBGr16 = mng_get_uint16 ((mng_uint8p)pWorkrow); iBGg16 = mng_get_uint16 ((mng_uint8p)(pWorkrow+1)); iBGb16 = mng_get_uint16 ((mng_uint8p)(pWorkrow+2)); if (iBGa16 == 0xFFFF) /* background fully opaque ? */ { /* do alpha composing */ MNG_COMPOSE16 (iFGr16, iFGr16, iFGa16, iBGr16); MNG_COMPOSE16 (iFGg16, iFGg16, iFGa16, iBGg16); MNG_COMPOSE16 (iFGb16, iFGb16, iFGa16, iBGb16); mng_put_uint16 ((mng_uint8p)pOutrow, iFGr16); mng_put_uint16 ((mng_uint8p)(pOutrow+1), iFGg16); mng_put_uint16 ((mng_uint8p)(pOutrow+2), iFGb16); *(pOutrow+3) = 0xFFFF; /* alpha becomes fully opaque !!! */ } else { /* here we'll have to blend */ MNG_BLEND16 (iFGr16, iFGg16, iFGb16, iFGa16, iBGr16, iBGg16, iBGb16, iBGa16, iCr16, iCg16, iCb16, iCa16); /* and return the composed values */ mng_put_uint16 ((mng_uint8p)pOutrow, iCr16); mng_put_uint16 ((mng_uint8p)(pOutrow+1), iCg16); mng_put_uint16 ((mng_uint8p)(pOutrow+2), iCb16); mng_put_uint16 ((mng_uint8p)(pOutrow+3), iCa16); } } pOutrow += 4; pWorkrow += 4; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_COMPOSEUNDER_RGBA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif #endif /* ************************************************************************** */ /* * * */ /* * PAST flip & tile routines - flip or tile a row of pixels * */ /* * * */ /* ************************************************************************** */ #ifndef MNG_SKIPCHUNK_PAST mng_retcode mng_flip_rgba8 (mng_datap pData) { mng_uint32p pWorkrow; mng_uint32p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_FLIP_RGBA8, MNG_LC_START); #endif /* setup temp pointers */ pWorkrow = (mng_uint32p)pData->pRGBArow + pData->iRowsamples - 1; pOutrow = (mng_uint32p)pData->pWorkrow; /* swap original buffers */ pData->pWorkrow = pData->pRGBArow; pData->pRGBArow = (mng_uint8p)pOutrow; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { /* let's flip */ *pOutrow = *pWorkrow; pOutrow++; pWorkrow--; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_FLIP_RGBA8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_flip_rgba16 (mng_datap pData) { mng_uint32p pWorkrow; mng_uint32p pOutrow; mng_int32 iX; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_FLIP_RGBA16, MNG_LC_START); #endif /* setup temp pointers */ pWorkrow = (mng_uint32p)pData->pRGBArow + ((pData->iRowsamples - 1) << 1); pOutrow = (mng_uint32p)pData->pWorkrow; /* swap original buffers */ pData->pWorkrow = pData->pRGBArow; pData->pRGBArow = (mng_uint8p)pOutrow; #ifdef MNG_DECREMENT_LOOPS for (iX = pData->iRowsamples; iX > 0; iX--) #else for (iX = 0; iX < pData->iRowsamples; iX++) #endif { /* let's flip */ *pOutrow = *pWorkrow; *(pOutrow + 1) = *(pWorkrow + 1); pOutrow += 2; pWorkrow -= 2; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_FLIP_RGBA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode mng_tile_rgba8 (mng_datap pData) { mng_uint32p pWorkrow; mng_uint32p pOutrow; mng_int32 iX; mng_uint32 iZ, iMax; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_TILE_RGBA8, MNG_LC_START); #endif iZ = pData->iSourcel; /* indent ? */ /* what's our source-length */ iMax = ((mng_imagep)pData->pRetrieveobj)->pImgbuf->iWidth; /* setup temp pointers */ pWorkrow = (mng_uint32p)pData->pRGBArow + iZ; pOutrow = (mng_uint32p)pData->pWorkrow; /* swap original buffers */ pData->pWorkrow = pData->pRGBArow; pData->pRGBArow = (mng_uint8p)pOutrow; for (iX = pData->iDestl; iX < pData->iDestr; iX++) { /* tiiiile */ *pOutrow = *pWorkrow; pWorkrow++; pOutrow++; iZ++; if (iZ >= iMax) /* end of source ? */ { iZ = 0; pWorkrow = (mng_uint32p)pData->pWorkrow; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_TILE_RGBA8, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ #ifndef MNG_NO_16BIT_SUPPORT mng_retcode mng_tile_rgba16 (mng_datap pData) { mng_uint32p pWorkrow; mng_uint32p pOutrow; mng_int32 iX; mng_uint32 iZ, iMax; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_TILE_RGBA16, MNG_LC_START); #endif iZ = pData->iSourcel; /* indent ? */ /* what's our source-length */ iMax = ((mng_imagep)pData->pRetrieveobj)->pImgbuf->iWidth; /* setup temp pointers */ pWorkrow = (mng_uint32p)pData->pRGBArow + (iZ << 1); pOutrow = (mng_uint32p)pData->pWorkrow; /* swap original buffers */ pData->pWorkrow = pData->pRGBArow; pData->pRGBArow = (mng_uint8p)pOutrow; for (iX = pData->iDestl; iX < pData->iDestr; iX++) { /* tiiiile */ *pOutrow = *pWorkrow; *(pOutrow + 1) = *(pWorkrow + 1); pWorkrow += 2; pOutrow += 2; iZ++; if (iZ >= iMax) /* end of source ? */ { iZ = 0; pWorkrow = (mng_uint32p)pData->pWorkrow; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_TILE_RGBA16, MNG_LC_END); #endif return MNG_NOERROR; } #endif #endif /* MNG_SKIPCHUNK_PAST */ /* ************************************************************************** */ #endif /* MNG_INCLUDE_DISPLAY_PROCS */ /* ************************************************************************** */ /* * end of file * */ /* ************************************************************************** */