diff options
Diffstat (limited to 'src/3rdparty/libtiff/libtiff/tif_getimage.c')
-rw-r--r-- | src/3rdparty/libtiff/libtiff/tif_getimage.c | 474 |
1 files changed, 336 insertions, 138 deletions
diff --git a/src/3rdparty/libtiff/libtiff/tif_getimage.c b/src/3rdparty/libtiff/libtiff/tif_getimage.c index 667f323..a85273c 100644 --- a/src/3rdparty/libtiff/libtiff/tif_getimage.c +++ b/src/3rdparty/libtiff/libtiff/tif_getimage.c @@ -1,4 +1,4 @@ -/* $Id: tif_getimage.c,v 1.63.2.3 2009-08-30 16:21:46 bfriesen Exp $ */ +/* $Id: tif_getimage.c,v 1.82 2012-06-06 00:17:49 fwarmerdam Exp $ */ /* * Copyright (c) 1991-1997 Sam Leffler @@ -38,6 +38,10 @@ static int gtStripContig(TIFFRGBAImage*, uint32*, uint32, uint32); static int gtStripSeparate(TIFFRGBAImage*, uint32*, uint32, uint32); static int PickContigCase(TIFFRGBAImage*); static int PickSeparateCase(TIFFRGBAImage*); + +static int BuildMapUaToAa(TIFFRGBAImage* img); +static int BuildMapBitdepth16To8(TIFFRGBAImage* img); + static const char photoTag[] = "PhotometricInterpretation"; /* @@ -50,7 +54,7 @@ static const char photoTag[] = "PhotometricInterpretation"; * Color conversion constants. We will define display types here. */ -TIFFDisplay display_sRGB = { +static const TIFFDisplay display_sRGB = { { /* XYZ -> luminance matrix */ { 3.2410F, -1.5374F, -0.4986F }, { -0.9692F, 1.8760F, 0.0416F }, @@ -202,10 +206,16 @@ TIFFRGBAImageEnd(TIFFRGBAImage* img) _TIFFfree(img->ycbcr), img->ycbcr = NULL; if (img->cielab) _TIFFfree(img->cielab), img->cielab = NULL; + if (img->UaToAa) + _TIFFfree(img->UaToAa), img->UaToAa = NULL; + if (img->Bitdepth16To8) + _TIFFfree(img->Bitdepth16To8), img->Bitdepth16To8 = NULL; + if( img->redcmap ) { _TIFFfree( img->redcmap ); _TIFFfree( img->greencmap ); _TIFFfree( img->bluecmap ); + img->redcmap = img->greencmap = img->bluecmap = NULL; } } @@ -252,7 +262,7 @@ TIFFRGBAImageBegin(TIFFRGBAImage* img, TIFF* tif, int stop, char emsg[1024]) default: sprintf(emsg, "Sorry, can not handle images with %d-bit samples", img->bitspersample); - return (0); + goto fail_return; } img->alpha = 0; TIFFGetFieldDefaulted(tif, TIFFTAG_SAMPLESPERPIXEL, &img->samplesperpixel); @@ -301,7 +311,7 @@ TIFFRGBAImageBegin(TIFFRGBAImage* img, TIFF* tif, int stop, char emsg[1024]) break; default: sprintf(emsg, "Missing needed %s tag", photoTag); - return (0); + goto fail_return; } } switch (img->photometric) { @@ -309,7 +319,7 @@ TIFFRGBAImageBegin(TIFFRGBAImage* img, TIFF* tif, int stop, char emsg[1024]) if (!TIFFGetField(tif, TIFFTAG_COLORMAP, &red_orig, &green_orig, &blue_orig)) { sprintf(emsg, "Missing required \"Colormap\" tag"); - return (0); + goto fail_return; } /* copy the colormaps so we can modify them */ @@ -319,7 +329,7 @@ TIFFRGBAImageBegin(TIFFRGBAImage* img, TIFF* tif, int stop, char emsg[1024]) img->bluecmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color); if( !img->redcmap || !img->greencmap || !img->bluecmap ) { sprintf(emsg, "Out of memory for colormap copy"); - return (0); + goto fail_return; } _TIFFmemcpy( img->redcmap, red_orig, n_color * 2 ); @@ -338,7 +348,7 @@ TIFFRGBAImageBegin(TIFFRGBAImage* img, TIFF* tif, int stop, char emsg[1024]) photoTag, img->photometric, "Samples/pixel", img->samplesperpixel, img->bitspersample); - return (0); + goto fail_return; } break; case PHOTOMETRIC_YCBCR: @@ -371,7 +381,7 @@ TIFFRGBAImageBegin(TIFFRGBAImage* img, TIFF* tif, int stop, char emsg[1024]) if (colorchannels < 3) { sprintf(emsg, "Sorry, can not handle RGB image with %s=%d", "Color channels", colorchannels); - return (0); + goto fail_return; } break; case PHOTOMETRIC_SEPARATED: @@ -381,12 +391,12 @@ TIFFRGBAImageBegin(TIFFRGBAImage* img, TIFF* tif, int stop, char emsg[1024]) if (inkset != INKSET_CMYK) { sprintf(emsg, "Sorry, can not handle separated image with %s=%d", "InkSet", inkset); - return (0); + goto fail_return; } if (img->samplesperpixel < 4) { sprintf(emsg, "Sorry, can not handle separated image with %s=%d", "Samples/pixel", img->samplesperpixel); - return (0); + goto fail_return; } } break; @@ -394,7 +404,7 @@ TIFFRGBAImageBegin(TIFFRGBAImage* img, TIFF* tif, int stop, char emsg[1024]) if (compress != COMPRESSION_SGILOG) { sprintf(emsg, "Sorry, LogL data must have %s=%d", "Compression", COMPRESSION_SGILOG); - return (0); + goto fail_return; } TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT); img->photometric = PHOTOMETRIC_MINISBLACK; /* little white lie */ @@ -404,7 +414,7 @@ TIFFRGBAImageBegin(TIFFRGBAImage* img, TIFF* tif, int stop, char emsg[1024]) if (compress != COMPRESSION_SGILOG && compress != COMPRESSION_SGILOG24) { sprintf(emsg, "Sorry, LogLuv data must have %s=%d or %d", "Compression", COMPRESSION_SGILOG, COMPRESSION_SGILOG24); - return (0); + goto fail_return; } if (planarconfig != PLANARCONFIG_CONTIG) { sprintf(emsg, "Sorry, can not handle LogLuv images with %s=%d", @@ -420,30 +430,39 @@ TIFFRGBAImageBegin(TIFFRGBAImage* img, TIFF* tif, int stop, char emsg[1024]) default: sprintf(emsg, "Sorry, can not handle image with %s=%d", photoTag, img->photometric); - return (0); + goto fail_return; } img->Map = NULL; img->BWmap = NULL; img->PALmap = NULL; img->ycbcr = NULL; img->cielab = NULL; + img->UaToAa = NULL; + img->Bitdepth16To8 = NULL; TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &img->width); TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &img->height); TIFFGetFieldDefaulted(tif, TIFFTAG_ORIENTATION, &img->orientation); img->isContig = - !(planarconfig == PLANARCONFIG_SEPARATE && colorchannels > 1); + !(planarconfig == PLANARCONFIG_SEPARATE && img->samplesperpixel > 1); if (img->isContig) { if (!PickContigCase(img)) { sprintf(emsg, "Sorry, can not handle image"); - return 0; + goto fail_return; } } else { if (!PickSeparateCase(img)) { sprintf(emsg, "Sorry, can not handle image"); - return 0; + goto fail_return; } } return 1; + + fail_return: + _TIFFfree( img->redcmap ); + _TIFFfree( img->greencmap ); + _TIFFfree( img->bluecmap ); + img->redcmap = img->greencmap = img->bluecmap = NULL; + return 0; } int @@ -572,7 +591,7 @@ gtTileContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) TIFF* tif = img->tif; tileContigRoutine put = img->put.contig; uint32 col, row, y, rowstoread; - uint32 pos; + tmsize_t pos; uint32 tw, th; unsigned char* buf; int32 fromskew, toskew; @@ -581,7 +600,7 @@ gtTileContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) buf = (unsigned char*) _TIFFmalloc(TIFFTileSize(tif)); if (buf == 0) { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for tile buffer"); + TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "%s", "No space for tile buffer"); return (0); } _TIFFmemset(buf, 0, TIFFTileSize(tif)); @@ -604,14 +623,14 @@ gtTileContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) nrow = (row + rowstoread > h ? h - row : rowstoread); for (col = 0; col < w; col += tw) { - if (TIFFReadTile(tif, buf, col+img->col_offset, - row+img->row_offset, 0, 0) < 0 && img->stoponerr) + if (TIFFReadTile(tif, buf, col+img->col_offset, + row+img->row_offset, 0, 0)==(tmsize_t)(-1) && img->stoponerr) { ret = 0; break; } - pos = ((row+img->row_offset) % th) * TIFFTileRowSize(tif); + pos = ((row+img->row_offset) % th) * TIFFTileRowSize(tif); if (col + tw > w) { @@ -665,26 +684,33 @@ gtTileSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) TIFF* tif = img->tif; tileSeparateRoutine put = img->put.separate; uint32 col, row, y, rowstoread; - uint32 pos; + tmsize_t pos; uint32 tw, th; unsigned char* buf; unsigned char* p0; unsigned char* p1; unsigned char* p2; unsigned char* pa; - tsize_t tilesize; + tmsize_t tilesize; + tmsize_t bufsize; int32 fromskew, toskew; int alpha = img->alpha; uint32 nrow; int ret = 1, flip; + int colorchannels; - tilesize = TIFFTileSize(tif); - buf = (unsigned char*) _TIFFmalloc((alpha?4:3)*tilesize); + tilesize = TIFFTileSize(tif); + bufsize = TIFFSafeMultiply(tmsize_t,alpha?4:3,tilesize); + if (bufsize == 0) { + TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "Integer overflow in %s", "gtTileSeparate"); + return (0); + } + buf = (unsigned char*) _TIFFmalloc(bufsize); if (buf == 0) { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for tile buffer"); + TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "%s", "No space for tile buffer"); return (0); } - _TIFFmemset(buf, 0, (alpha?4:3)*tilesize); + _TIFFmemset(buf, 0, bufsize); p0 = buf; p1 = p0 + tilesize; p2 = p1 + tilesize; @@ -702,41 +728,58 @@ gtTileSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) toskew = -(int32)(tw - w); } + switch( img->photometric ) + { + case PHOTOMETRIC_MINISWHITE: + case PHOTOMETRIC_MINISBLACK: + case PHOTOMETRIC_PALETTE: + colorchannels = 1; + p2 = p1 = p0; + break; + + default: + colorchannels = 3; + break; + } + for (row = 0; row < h; row += nrow) { rowstoread = th - (row + img->row_offset) % th; nrow = (row + rowstoread > h ? h - row : rowstoread); for (col = 0; col < w; col += tw) { - if (TIFFReadTile(tif, p0, col+img->col_offset, - row+img->row_offset,0,0) < 0 && img->stoponerr) + if (TIFFReadTile(tif, p0, col+img->col_offset, + row+img->row_offset,0,0)==(tmsize_t)(-1) && img->stoponerr) { ret = 0; break; } - if (TIFFReadTile(tif, p1, col+img->col_offset, - row+img->row_offset,0,1) < 0 && img->stoponerr) + if (colorchannels > 1 + && TIFFReadTile(tif, p1, col+img->col_offset, + row+img->row_offset,0,1) == (tmsize_t)(-1) + && img->stoponerr) { ret = 0; break; } - if (TIFFReadTile(tif, p2, col+img->col_offset, - row+img->row_offset,0,2) < 0 && img->stoponerr) + if (colorchannels > 1 + && TIFFReadTile(tif, p2, col+img->col_offset, + row+img->row_offset,0,2) == (tmsize_t)(-1) + && img->stoponerr) { ret = 0; break; } - if (alpha) - { - if (TIFFReadTile(tif,pa,col+img->col_offset, - row+img->row_offset,0,3) < 0 && img->stoponerr) - { - ret = 0; - break; - } + if (alpha + && TIFFReadTile(tif,pa,col+img->col_offset, + row+img->row_offset,0,colorchannels) == (tmsize_t)(-1) + && img->stoponerr) + { + ret = 0; + break; } - pos = ((row+img->row_offset) % th) * TIFFTileRowSize(tif); + pos = ((row+img->row_offset) % th) * TIFFTileRowSize(tif); if (col + tw > w) { @@ -790,12 +833,12 @@ gtStripContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) TIFF* tif = img->tif; tileContigRoutine put = img->put.contig; uint32 row, y, nrow, nrowsub, rowstoread; - uint32 pos; + tmsize_t pos; unsigned char* buf; uint32 rowsperstrip; uint16 subsamplinghor,subsamplingver; uint32 imagewidth = img->width; - tsize_t scanline; + tmsize_t scanline; int32 fromskew, toskew; int ret = 1, flip; @@ -817,7 +860,7 @@ gtStripContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); TIFFGetFieldDefaulted(tif, TIFFTAG_YCBCRSUBSAMPLING, &subsamplinghor, &subsamplingver); - scanline = TIFFNewScanlineSize(tif); + scanline = TIFFScanlineSize(tif); fromskew = (w < imagewidth ? imagewidth - w : 0); for (row = 0; row < h; row += nrow) { @@ -829,7 +872,7 @@ gtStripContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif,row+img->row_offset, 0), buf, - ((row + img->row_offset)%rowsperstrip + nrowsub) * scanline) < 0 + ((row + img->row_offset)%rowsperstrip + nrowsub) * scanline)==(tmsize_t)(-1) && img->stoponerr) { ret = 0; @@ -875,22 +918,28 @@ gtStripSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) unsigned char *buf; unsigned char *p0, *p1, *p2, *pa; uint32 row, y, nrow, rowstoread; - uint32 pos; - tsize_t scanline; + tmsize_t pos; + tmsize_t scanline; uint32 rowsperstrip, offset_row; uint32 imagewidth = img->width; - tsize_t stripsize; + tmsize_t stripsize; + tmsize_t bufsize; int32 fromskew, toskew; int alpha = img->alpha; - int ret = 1, flip; + int ret = 1, flip, colorchannels; - stripsize = TIFFStripSize(tif); - p0 = buf = (unsigned char *)_TIFFmalloc((alpha?4:3)*stripsize); + stripsize = TIFFStripSize(tif); + bufsize = TIFFSafeMultiply(tmsize_t,alpha?4:3,stripsize); + if (bufsize == 0) { + TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "Integer overflow in %s", "gtStripSeparate"); + return (0); + } + p0 = buf = (unsigned char *)_TIFFmalloc(bufsize); if (buf == 0) { TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for tile buffer"); return (0); } - _TIFFmemset(buf, 0, (alpha?4:3)*stripsize); + _TIFFmemset(buf, 0, bufsize); p1 = p0 + stripsize; p2 = p1 + stripsize; pa = (alpha?(p2+stripsize):NULL); @@ -905,8 +954,22 @@ gtStripSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) toskew = -(int32)(w - w); } + switch( img->photometric ) + { + case PHOTOMETRIC_MINISWHITE: + case PHOTOMETRIC_MINISBLACK: + case PHOTOMETRIC_PALETTE: + colorchannels = 1; + p2 = p1 = p0; + break; + + default: + colorchannels = 3; + break; + } + TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); - scanline = TIFFScanlineSize(tif); + scanline = TIFFScanlineSize(tif); fromskew = (w < imagewidth ? imagewidth - w : 0); for (row = 0; row < h; row += nrow) { @@ -914,21 +977,23 @@ gtStripSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) nrow = (row + rowstoread > h ? h - row : rowstoread); offset_row = row + img->row_offset; if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 0), - p0, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0 + p0, ((row + img->row_offset)%rowsperstrip + nrow) * scanline)==(tmsize_t)(-1) && img->stoponerr) { ret = 0; break; } - if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 1), - p1, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0 + if (colorchannels > 1 + && TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 1), + p1, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) == (tmsize_t)(-1) && img->stoponerr) { ret = 0; break; } - if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 2), - p2, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0 + if (colorchannels > 1 + && TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 2), + p2, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) == (tmsize_t)(-1) && img->stoponerr) { ret = 0; @@ -936,8 +1001,8 @@ gtStripSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) } if (alpha) { - if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 3), - pa, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0 + if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, colorchannels), + pa, ((row + img->row_offset)%rowsperstrip + nrow) * scanline)==(tmsize_t)(-1) && img->stoponerr) { ret = 0; @@ -1036,6 +1101,7 @@ gtStripSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) #define PACK4(r,g,b,a) \ ((uint32)(r)|((uint32)(g)<<8)|((uint32)(b)<<16)|((uint32)(a)<<24)) #define W2B(v) (((v)>>8)&0xff) +/* TODO: PACKW should have be made redundant in favor of Bitdepth16To8 LUT */ #define PACKW(r,g,b) \ ((uint32)W2B(r)|((uint32)W2B(g)<<8)|((uint32)W2B(b)<<16)|A1) #define PACKW4(r,g,b,a) \ @@ -1143,6 +1209,26 @@ DECLAREContigPutFunc(putgreytile) } /* + * 8-bit greyscale with associated alpha => colormap/RGBA + */ +DECLAREContigPutFunc(putagreytile) +{ + int samplesperpixel = img->samplesperpixel; + uint32** BWmap = img->BWmap; + + (void) y; + while (h-- > 0) { + for (x = w; x-- > 0;) + { + *cp++ = BWmap[*pp][0] & (*(pp+1) << 24 | ~A1); + pp += samplesperpixel; + } + cp += toskew; + pp += fromskew; + } +} + +/* * 16-bit greyscale => colormap/RGB */ DECLAREContigPutFunc(put16bitbwtile) @@ -1266,11 +1352,13 @@ DECLAREContigPutFunc(putRGBUAcontig8bittile) fromskew *= samplesperpixel; while (h-- > 0) { uint32 r, g, b, a; + uint8* m; for (x = w; x-- > 0;) { a = pp[3]; - r = (a*pp[0] + 127) / 255; - g = (a*pp[1] + 127) / 255; - b = (a*pp[2] + 127) / 255; + m = img->UaToAa+(a<<8); + r = m[pp[0]]; + g = m[pp[1]]; + b = m[pp[2]]; *cp++ = PACK4(r,g,b,a); pp += samplesperpixel; } @@ -1290,8 +1378,10 @@ DECLAREContigPutFunc(putRGBcontig16bittile) fromskew *= samplesperpixel; while (h-- > 0) { for (x = w; x-- > 0;) { - *cp++ = PACKW(wp[0],wp[1],wp[2]); - wp += samplesperpixel; + *cp++ = PACK(img->Bitdepth16To8[wp[0]], + img->Bitdepth16To8[wp[1]], + img->Bitdepth16To8[wp[2]]); + wp += samplesperpixel; } cp += toskew; wp += fromskew; @@ -1310,8 +1400,11 @@ DECLAREContigPutFunc(putRGBAAcontig16bittile) fromskew *= samplesperpixel; while (h-- > 0) { for (x = w; x-- > 0;) { - *cp++ = PACKW4(wp[0],wp[1],wp[2],wp[3]); - wp += samplesperpixel; + *cp++ = PACK4(img->Bitdepth16To8[wp[0]], + img->Bitdepth16To8[wp[1]], + img->Bitdepth16To8[wp[2]], + img->Bitdepth16To8[wp[3]]); + wp += samplesperpixel; } cp += toskew; wp += fromskew; @@ -1330,13 +1423,15 @@ DECLAREContigPutFunc(putRGBUAcontig16bittile) fromskew *= samplesperpixel; while (h-- > 0) { uint32 r,g,b,a; + uint8* m; for (x = w; x-- > 0;) { - a = W2B(wp[3]); - r = (a*W2B(wp[0]) + 127) / 255; - g = (a*W2B(wp[1]) + 127) / 255; - b = (a*W2B(wp[2]) + 127) / 255; - *cp++ = PACK4(r,g,b,a); - wp += samplesperpixel; + a = img->Bitdepth16To8[wp[3]]; + m = img->UaToAa+(a<<8); + r = m[img->Bitdepth16To8[wp[0]]]; + g = m[img->Bitdepth16To8[wp[1]]]; + b = m[img->Bitdepth16To8[wp[2]]]; + *cp++ = PACK4(r,g,b,a); + wp += samplesperpixel; } cp += toskew; wp += fromskew; @@ -1423,7 +1518,7 @@ DECLARESepPutFunc(putRGBseparate8bittile) */ DECLARESepPutFunc(putRGBAAseparate8bittile) { - (void) img; (void) x; (void) y; + (void) img; (void) x; (void) y; while (h-- > 0) { UNROLL8(w, NOP, *cp++ = PACK4(*r++, *g++, *b++, *a++)); SKEW4(r, g, b, a, fromskew); @@ -1432,6 +1527,26 @@ DECLARESepPutFunc(putRGBAAseparate8bittile) } /* + * 8-bit unpacked CMYK samples => RGBA + */ +DECLARESepPutFunc(putCMYKseparate8bittile) +{ + (void) img; (void) y; + while (h-- > 0) { + uint32 rv, gv, bv, kv; + for (x = w; x-- > 0;) { + kv = 255 - *a++; + rv = (kv*(255-*r++))/255; + gv = (kv*(255-*g++))/255; + bv = (kv*(255-*b++))/255; + *cp++ = PACK4(rv,gv,bv,255); + } + SKEW4(r, g, b, a, fromskew); + cp += toskew; + } +} + +/* * 8-bit unpacked samples => RGBA w/ unassociated alpha */ DECLARESepPutFunc(putRGBUAseparate8bittile) @@ -1439,11 +1554,13 @@ DECLARESepPutFunc(putRGBUAseparate8bittile) (void) img; (void) y; while (h-- > 0) { uint32 rv, gv, bv, av; + uint8* m; for (x = w; x-- > 0;) { av = *a++; - rv = (av* *r++ + 127) / 255; - gv = (av* *g++ + 127) / 255; - bv = (av* *b++ + 127) / 255; + m = img->UaToAa+(av<<8); + rv = m[*r++]; + gv = m[*g++]; + bv = m[*b++]; *cp++ = PACK4(rv,gv,bv,av); } SKEW4(r, g, b, a, fromskew); @@ -1462,7 +1579,9 @@ DECLARESepPutFunc(putRGBseparate16bittile) (void) img; (void) y; (void) a; while (h-- > 0) { for (x = 0; x < w; x++) - *cp++ = PACKW(*wr++,*wg++,*wb++); + *cp++ = PACK(img->Bitdepth16To8[*wr++], + img->Bitdepth16To8[*wg++], + img->Bitdepth16To8[*wb++]); SKEW(wr, wg, wb, fromskew); cp += toskew; } @@ -1480,7 +1599,10 @@ DECLARESepPutFunc(putRGBAAseparate16bittile) (void) img; (void) y; while (h-- > 0) { for (x = 0; x < w; x++) - *cp++ = PACKW4(*wr++,*wg++,*wb++,*wa++); + *cp++ = PACK4(img->Bitdepth16To8[*wr++], + img->Bitdepth16To8[*wg++], + img->Bitdepth16To8[*wb++], + img->Bitdepth16To8[*wa++]); SKEW4(wr, wg, wb, wa, fromskew); cp += toskew; } @@ -1498,12 +1620,14 @@ DECLARESepPutFunc(putRGBUAseparate16bittile) (void) img; (void) y; while (h-- > 0) { uint32 r,g,b,a; + uint8* m; for (x = w; x-- > 0;) { - a = W2B(*wa++); - r = (a*W2B(*wr++) + 127) / 255; - g = (a*W2B(*wg++) + 127) / 255; - b = (a*W2B(*wb++) + 127) / 255; - *cp++ = PACK4(r,g,b,a); + a = img->Bitdepth16To8[*wa++]; + m = img->UaToAa+(a<<8); + r = m[img->Bitdepth16To8[*wr++]]; + g = m[img->Bitdepth16To8[*wg++]]; + b = m[img->Bitdepth16To8[*wb++]]; + *cp++ = PACK4(r,g,b,a); } SKEW4(wr, wg, wb, wa, fromskew); cp += toskew; @@ -1846,6 +1970,7 @@ DECLAREContigPutFunc(putcontig8bitYCbCr41tile) DECLAREContigPutFunc(putcontig8bitYCbCr22tile) { uint32* cp2; + int32 incr = 2*toskew+w; (void) y; fromskew = (fromskew / 2) * 6; cp2 = cp+w+toskew; @@ -1872,8 +1997,8 @@ DECLAREContigPutFunc(putcontig8bitYCbCr22tile) cp2 ++ ; pp += 6; } - cp += toskew*2+w; - cp2 += toskew*2+w; + cp += incr; + cp2 += incr; pp += fromskew; h-=2; } @@ -1939,6 +2064,7 @@ DECLAREContigPutFunc(putcontig8bitYCbCr21tile) DECLAREContigPutFunc(putcontig8bitYCbCr12tile) { uint32* cp2; + int32 incr = 2*toskew+w; (void) y; fromskew = (fromskew / 2) * 4; cp2 = cp+w+toskew; @@ -1953,8 +2079,8 @@ DECLAREContigPutFunc(putcontig8bitYCbCr12tile) cp2 ++; pp += 4; } while (--x); - cp += toskew*2+w; - cp2 += toskew*2+w; + cp += incr; + cp2 += incr; pp += fromskew; h-=2; } @@ -2016,13 +2142,13 @@ DECLARESepPutFunc(putseparate8bitYCbCr11tile) static int initYCbCrConversion(TIFFRGBAImage* img) { - static char module[] = "initYCbCrConversion"; + static const char module[] = "initYCbCrConversion"; float *luma, *refBlackWhite; if (img->ycbcr == NULL) { img->ycbcr = (TIFFYCbCrToRGB*) _TIFFmalloc( - TIFFroundup(sizeof (TIFFYCbCrToRGB), sizeof (long)) + TIFFroundup_32(sizeof (TIFFYCbCrToRGB), sizeof (long)) + 4*256*sizeof (TIFFRGBValue) + 2*256*sizeof (int) + 3*256*sizeof (int32) @@ -2045,7 +2171,7 @@ initYCbCrConversion(TIFFRGBAImage* img) static tileContigRoutine initCIELabConversion(TIFFRGBAImage* img) { - static char module[] = "initCIELabConversion"; + static const char module[] = "initCIELabConversion"; float *whitePoint; float refWhite[3]; @@ -2325,23 +2451,28 @@ PickContigCase(TIFFRGBAImage* img) img->put.contig = putRGBAAcontig8bittile; else if (img->alpha == EXTRASAMPLE_UNASSALPHA) { - img->put.contig = putRGBUAcontig8bittile; + if (BuildMapUaToAa(img)) + img->put.contig = putRGBUAcontig8bittile; } else - img->put.contig = putRGBcontig8bittile; + img->put.contig = putRGBcontig8bittile; break; case 16: if (img->alpha == EXTRASAMPLE_ASSOCALPHA) { - img->put.contig = putRGBAAcontig16bittile; + if (BuildMapBitdepth16To8(img)) + img->put.contig = putRGBAAcontig16bittile; } else if (img->alpha == EXTRASAMPLE_UNASSALPHA) { - img->put.contig = putRGBUAcontig16bittile; + if (BuildMapBitdepth16To8(img) && + BuildMapUaToAa(img)) + img->put.contig = putRGBUAcontig16bittile; } else { - img->put.contig = putRGBcontig16bittile; + if (BuildMapBitdepth16To8(img)) + img->put.contig = putRGBcontig16bittile; } break; } @@ -2382,7 +2513,10 @@ PickContigCase(TIFFRGBAImage* img) img->put.contig = put16bitbwtile; break; case 8: - img->put.contig = putgreytile; + if (img->alpha && img->samplesperpixel == 2) + img->put.contig = putagreytile; + else + img->put.contig = putgreytile; break; case 4: img->put.contig = put4bitbwtile; @@ -2397,7 +2531,7 @@ PickContigCase(TIFFRGBAImage* img) } break; case PHOTOMETRIC_YCBCR: - if (img->bitspersample == 8) + if ((img->bitspersample==8) && (img->samplesperpixel==3)) { if (initYCbCrConversion(img)!=0) { @@ -2461,54 +2595,111 @@ PickSeparateCase(TIFFRGBAImage* img) img->get = TIFFIsTiled(img->tif) ? gtTileSeparate : gtStripSeparate; img->put.separate = NULL; switch (img->photometric) { - case PHOTOMETRIC_RGB: - switch (img->bitspersample) { - case 8: - if (img->alpha == EXTRASAMPLE_ASSOCALPHA) - img->put.separate = putRGBAAseparate8bittile; - else if (img->alpha == EXTRASAMPLE_UNASSALPHA) - { - img->put.separate = putRGBUAseparate8bittile; - } - else - img->put.separate = putRGBseparate8bittile; - break; - case 16: - if (img->alpha == EXTRASAMPLE_ASSOCALPHA) - { - img->put.separate = putRGBAAseparate16bittile; - } - else if (img->alpha == EXTRASAMPLE_UNASSALPHA) - { - img->put.separate = putRGBUAseparate16bittile; - } - else - { - img->put.separate = putRGBseparate16bittile; - } - break; + case PHOTOMETRIC_MINISWHITE: + case PHOTOMETRIC_MINISBLACK: + /* greyscale images processed pretty much as RGB by gtTileSeparate */ + case PHOTOMETRIC_RGB: + switch (img->bitspersample) { + case 8: + if (img->alpha == EXTRASAMPLE_ASSOCALPHA) + img->put.separate = putRGBAAseparate8bittile; + else if (img->alpha == EXTRASAMPLE_UNASSALPHA) + { + if (BuildMapUaToAa(img)) + img->put.separate = putRGBUAseparate8bittile; } + else + img->put.separate = putRGBseparate8bittile; break; - case PHOTOMETRIC_YCBCR: - if ((img->bitspersample==8) && (img->samplesperpixel==3)) + case 16: + if (img->alpha == EXTRASAMPLE_ASSOCALPHA) { - if (initYCbCrConversion(img)!=0) - { - uint16 hs, vs; - TIFFGetFieldDefaulted(img->tif, TIFFTAG_YCBCRSUBSAMPLING, &hs, &vs); - switch ((hs<<4)|vs) { - case 0x11: - img->put.separate = putseparate8bitYCbCr11tile; - break; - /* TODO: add other cases here */ - } - } + if (BuildMapBitdepth16To8(img)) + img->put.separate = putRGBAAseparate16bittile; + } + else if (img->alpha == EXTRASAMPLE_UNASSALPHA) + { + if (BuildMapBitdepth16To8(img) && + BuildMapUaToAa(img)) + img->put.separate = putRGBUAseparate16bittile; + } + else + { + if (BuildMapBitdepth16To8(img)) + img->put.separate = putRGBseparate16bittile; } break; + } + break; + case PHOTOMETRIC_SEPARATED: + if (img->bitspersample == 8 && img->samplesperpixel == 4) + { + img->alpha = 1; // Not alpha, but seems like the only way to get 4th band + img->put.separate = putCMYKseparate8bittile; + } + break; + case PHOTOMETRIC_YCBCR: + if ((img->bitspersample==8) && (img->samplesperpixel==3)) + { + if (initYCbCrConversion(img)!=0) + { + uint16 hs, vs; + TIFFGetFieldDefaulted(img->tif, TIFFTAG_YCBCRSUBSAMPLING, &hs, &vs); + switch ((hs<<4)|vs) { + case 0x11: + img->put.separate = putseparate8bitYCbCr11tile; + break; + /* TODO: add other cases here */ + } + } + } + break; } return ((img->get!=NULL) && (img->put.separate!=NULL)); } +static int +BuildMapUaToAa(TIFFRGBAImage* img) +{ + static const char module[]="BuildMapUaToAa"; + uint8* m; + uint16 na,nv; + assert(img->UaToAa==NULL); + img->UaToAa=_TIFFmalloc(65536); + if (img->UaToAa==NULL) + { + TIFFErrorExt(img->tif->tif_clientdata,module,"Out of memory"); + return(0); + } + m=img->UaToAa; + for (na=0; na<256; na++) + { + for (nv=0; nv<256; nv++) + *m++=(nv*na+127)/255; + } + return(1); +} + +static int +BuildMapBitdepth16To8(TIFFRGBAImage* img) +{ + static const char module[]="BuildMapBitdepth16To8"; + uint8* m; + uint32 n; + assert(img->Bitdepth16To8==NULL); + img->Bitdepth16To8=_TIFFmalloc(65536); + if (img->Bitdepth16To8==NULL) + { + TIFFErrorExt(img->tif->tif_clientdata,module,"Out of memory"); + return(0); + } + m=img->Bitdepth16To8; + for (n=0; n<65536; n++) + *m++=(n+128)/257; + return(1); +} + + /* * Read a whole strip off data from the file, and convert to RGBA form. * If this is the last strip, then it will only contain the portion of @@ -2667,3 +2858,10 @@ TIFFReadRGBATile(TIFF* tif, uint32 col, uint32 row, uint32 * raster) } /* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ |