/* ************************************************************************** */ /* * For conditions of distribution and use, * */ /* * see copyright notice in libmng.h * */ /* ************************************************************************** */ /* * * */ /* * project : libmng * */ /* * file : libmng_hlapi.c copyright (c) 2000-2007 G.Juyn * */ /* * version : 1.0.10 * */ /* * * */ /* * purpose : high-level application API (implementation) * */ /* * * */ /* * author : G.Juyn * */ /* * * */ /* * comment : implementation of the high-level function interface * */ /* * for applications. * */ /* * * */ /* * changes : 0.5.1 - 05/06/2000 - G.Juyn * */ /* * - added init of iPLTEcount * */ /* * 0.5.1 - 05/08/2000 - G.Juyn * */ /* * - changed calling-convention definition * */ /* * - changed status-handling of display-routines * */ /* * - added versioning-control routines * */ /* * - filled the write routine * */ /* * - 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 * */ /* * 0.5.1 - 05/13/2000 - G.Juyn * */ /* * - added eMNGma hack (will be removed in 1.0.0 !!!) * */ /* * - added TERM animation object pointer (easier reference) * */ /* * 0.5.1 - 05/14/2000 - G.Juyn * */ /* * - added cleanup of saved-data (SAVE/SEEK processing) * */ /* * 0.5.1 - 05/16/2000 - G.Juyn * */ /* * - moved the actual write_graphic functionality from here * */ /* * to its appropriate function in the mng_write module * */ /* * * */ /* * 0.5.2 - 05/19/2000 - G.Juyn * */ /* * - cleaned up some code regarding mixed support * */ /* * - added JNG support * */ /* * 0.5.2 - 05/24/2000 - G.Juyn * */ /* * - moved init of default zlib parms here from "mng_zlib.c" * */ /* * - added init of default IJG parms * */ /* * 0.5.2 - 05/29/2000 - G.Juyn * */ /* * - fixed inconsistancy with freeing global iCCP profile * */ /* * 0.5.2 - 05/30/2000 - G.Juyn * */ /* * - added delta-image field initialization * */ /* * 0.5.2 - 06/06/2000 - G.Juyn * */ /* * - added initialization of the buffer-suspend parameter * */ /* * * */ /* * 0.5.3 - 06/16/2000 - G.Juyn * */ /* * - added initialization of update-region for refresh * */ /* * - added initialization of Needrefresh parameter * */ /* * 0.5.3 - 06/17/2000 - G.Juyn * */ /* * - added initialization of Deltaimmediate * */ /* * 0.5.3 - 06/21/2000 - G.Juyn * */ /* * - added initialization of Speed * */ /* * - added initialization of Imagelevel * */ /* * 0.5.3 - 06/26/2000 - G.Juyn * */ /* * - changed userdata variable to mng_ptr * */ /* * 0.5.3 - 06/29/2000 - G.Juyn * */ /* * - fixed initialization routine for new mng_handle type * */ /* * * */ /* * 0.9.1 - 07/06/2000 - G.Juyn * */ /* * - changed mng_display_resume to allow to be called after * */ /* * a suspension return with MNG_NEEDMOREDATA * */ /* * - added returncode MNG_NEEDTIMERWAIT for timer breaks * */ /* * 0.9.1 - 07/07/2000 - G.Juyn * */ /* * - implemented support for freeze/reset/resume & go_xxxx * */ /* * 0.9.1 - 07/08/2000 - G.Juyn * */ /* * - added support for improved timing * */ /* * - added support for improved I/O-suspension * */ /* * 0.9.1 - 07/14/2000 - G.Juyn * */ /* * - changed EOF processing behavior * */ /* * 0.9.1 - 07/15/2000 - G.Juyn * */ /* * - added callbacks for SAVE/SEEK processing * */ /* * - added variable for NEEDSECTIONWAIT breaks * */ /* * - added variable for freeze & reset processing * */ /* * 0.9.1 - 07/17/2000 - G.Juyn * */ /* * - added error cleanup processing * */ /* * - fixed support for mng_display_reset() * */ /* * - fixed suspension-buffering for 32K+ chunks * */ /* * * */ /* * 0.9.2 - 07/29/2000 - G.Juyn * */ /* * - fixed small bugs in display processing * */ /* * 0.9.2 - 07/31/2000 - G.Juyn * */ /* * - fixed wrapping of suspension parameters * */ /* * 0.9.2 - 08/04/2000 - G.Juyn * */ /* * - B111096 - fixed large-buffer read-suspension * */ /* * 0.9.2 - 08/05/2000 - G.Juyn * */ /* * - changed file-prefixes * */ /* * * */ /* * 0.9.3 - 09/07/2000 - G.Juyn * */ /* * - added support for new filter_types * */ /* * 0.9.3 - 09/10/2000 - G.Juyn * */ /* * - fixed DEFI behavior * */ /* * 0.9.3 - 10/11/2000 - G.Juyn * */ /* * - added support for nEED * */ /* * 0.9.3 - 10/16/2000 - G.Juyn * */ /* * - added optional support for bKGD for PNG images * */ /* * - raised initial maximum canvas size * */ /* * - added support for JDAA * */ /* * 0.9.3 - 10/17/2000 - G.Juyn * */ /* * - added callback to process non-critical unknown chunks * */ /* * - fixed support for delta-images during read() / display() * */ /* * 0.9.3 - 10/18/2000 - G.Juyn * */ /* * - added closestream() processing for mng_cleanup() * */ /* * 0.9.3 - 10/27/2000 - G.Juyn * */ /* * - fixed separate read() & display() processing * */ /* * * */ /* * 0.9.4 - 11/20/2000 - G.Juyn * */ /* * - fixed unwanted repetition in mng_readdisplay() * */ /* * 0.9.4 - 11/24/2000 - G.Juyn * */ /* * - moved restore of object 0 to libmng_display * */ /* * * */ /* * 1.0.1 - 02/08/2001 - G.Juyn * */ /* * - added MEND processing callback * */ /* * 1.0.1 - 02/13/2001 - G.Juyn * */ /* * - fixed first FRAM_MODE=4 timing problem * */ /* * 1.0.1 - 04/21/2001 - G.Juyn * */ /* * - fixed bug with display_reset/display_resume (Thanks G!) * */ /* * 1.0.1 - 04/22/2001 - G.Juyn * */ /* * - fixed memory-leak (Thanks Gregg!) * */ /* * 1.0.1 - 04/23/2001 - G.Juyn * */ /* * - fixed reset_rundata to drop all objects * */ /* * 1.0.1 - 04/25/2001 - G.Juyn * */ /* * - moved mng_clear_cms to libmng_cms * */ /* * * */ /* * 1.0.2 - 06/23/2001 - G.Juyn * */ /* * - added optimization option for MNG-video playback * */ /* * - added processterm callback * */ /* * 1.0.2 - 06/25/2001 - G.Juyn * */ /* * - added option to turn off progressive refresh * */ /* * * */ /* * 1.0.5 - 07/08/2002 - G.Juyn * */ /* * - B578572 - removed eMNGma hack (thanks Dimitri!) * */ /* * 1.0.5 - 07/16/2002 - G.Juyn * */ /* * - B581625 - large chunks fail with suspension reads * */ /* * 1.0.5 - 08/19/2002 - G.Juyn * */ /* * - B597134 - libmng pollutes the linker namespace * */ /* * 1.0.5 - 09/15/2002 - G.Juyn * */ /* * - fixed LOOP iteration=0 special case * */ /* * 1.0.5 - 10/07/2002 - G.Juyn * */ /* * - added another fix for misplaced TERM chunk * */ /* * - completed support for condition=2 in TERM chunk * */ /* * - added beta version function & constant * */ /* * 1.0.5 - 10/11/2002 - G.Juyn * */ /* * - added mng_status_dynamic to supports function * */ /* * 1.0.5 - 11/04/2002 - G.Juyn * */ /* * - changed FRAMECOUNT/LAYERCOUNT/PLAYTIME error to warning * */ /* * 1.0.5 - 11/07/2002 - G.Juyn * */ /* * - added support to get totals after mng_read() * */ /* * 1.0.5 - 11/29/2002 - G.Juyn * */ /* * - fixed goxxxxx() support for zero values * */ /* * * */ /* * 1.0.6 - 05/25/2003 - G.R-P * */ /* * - added MNG_SKIPCHUNK_cHNK footprint optimizations * */ /* * 1.0.6 - 07/11/2003 - G.R-P * */ /* * - added conditionals zlib and jpeg property accessors * */ /* * 1.0.6 - 07/14/2003 - G.R-P * */ /* * - added conditionals around "mng_display_go*" and other * */ /* * unused functions * */ /* * 1.0.6 - 07/29/2003 - G.R-P * */ /* * - added conditionals around PAST chunk support * */ /* * * */ /* * 1.0.7 - 03/07/2004 - G. Randers-Pehrson * */ /* * - put gamma, cms-related declarations inside #ifdef * */ /* * 1.0.7 - 03/10/2004 - G.R-P * */ /* * - added conditionals around openstream/closestream * */ /* * 1.0.7 - 03/24/2004 - G.R-P * */ /* * - fixed zTXT -> zTXt typo * */ /* * * */ /* * 1.0.8 - 04/02/2004 - G.Juyn * */ /* * - added CRC existence & checking flags * */ /* * 1.0.8 - 04/10/2004 - G.Juyn * */ /* * - added data-push mechanisms for specialized decoders * */ /* * 1.0.8 - 07/06/2004 - G.R-P * */ /* * - defend against using undefined openstream function * */ /* * 1.0.8 - 08/02/2004 - G.Juyn * */ /* * - added conditional to allow easier writing of large MNG's * */ /* * * */ /* * 1.0.9 - 08/17/2004 - G.R-P * */ /* * - added more SKIPCHUNK conditionals * */ /* * 1.0.9 - 09/25/2004 - G.Juyn * */ /* * - replaced MNG_TWEAK_LARGE_FILES with permanent solution * */ /* * 1.0.9 - 10/03/2004 - G.Juyn * */ /* * - added function to retrieve current FRAM delay * */ /* * 1.0.9 - 12/20/2004 - G.Juyn * */ /* * - cleaned up macro-invocations (thanks to D. Airlie) * */ /* * * */ /* * 1.0.10 - 07/06/2005 - G.R-P * */ /* * - added more SKIPCHUNK conditionals * */ /* * 1.0.10 - 04/08/2007 - G.Juyn * */ /* * - added support for mPNG proposal * */ /* * 1.0.10 - 04/12/2007 - G.Juyn * */ /* * - added support for ANG proposal * */ /* * 1.0.10 - 07/06/2007 - G.R-P bugfix by Lucas Quintana * */ /* * * */ /* ************************************************************************** */ #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_chunks.h" #include "libmng_memory.h" #include "libmng_read.h" #include "libmng_write.h" #include "libmng_display.h" #include "libmng_zlib.h" #include "libmng_jpeg.h" #include "libmng_cms.h" #include "libmng_pixels.h" #if defined(__BORLANDC__) && defined(MNG_STRICT_ANSI) #pragma option -A /* force ANSI-C */ #endif /* ************************************************************************** */ /* * * */ /* * local routines * */ /* * * */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_DISPLAY MNG_LOCAL mng_retcode mng_drop_objects (mng_datap pData, mng_bool bDropaniobj) { mng_objectp pObject; mng_objectp pNext; mng_cleanupobject fCleanup; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DROP_OBJECTS, MNG_LC_START); #endif pObject = pData->pFirstimgobj; /* get first stored image-object (if any) */ while (pObject) /* more objects to discard ? */ { pNext = ((mng_object_headerp)pObject)->pNext; /* call appropriate cleanup */ fCleanup = ((mng_object_headerp)pObject)->fCleanup; fCleanup (pData, pObject); pObject = pNext; /* neeeext */ } pData->pFirstimgobj = MNG_NULL; /* clean this up!!! */ pData->pLastimgobj = MNG_NULL; if (bDropaniobj) /* drop animation objects ? */ { pObject = pData->pFirstaniobj; /* get first stored animation-object (if any) */ while (pObject) /* more objects to discard ? */ { pNext = ((mng_object_headerp)pObject)->pNext; /* call appropriate cleanup */ fCleanup = ((mng_object_headerp)pObject)->fCleanup; fCleanup (pData, pObject); pObject = pNext; /* neeeext */ } pData->pFirstaniobj = MNG_NULL; /* clean this up!!! */ pData->pLastaniobj = MNG_NULL; #ifdef MNG_SUPPORT_DYNAMICMNG pObject = pData->pFirstevent; /* get first event-object (if any) */ while (pObject) /* more objects to discard ? */ { pNext = ((mng_object_headerp)pObject)->pNext; /* call appropriate cleanup */ fCleanup = ((mng_object_headerp)pObject)->fCleanup; fCleanup (pData, pObject); pObject = pNext; /* neeeext */ } pData->pFirstevent = MNG_NULL; /* clean this up!!! */ pData->pLastevent = MNG_NULL; #endif } #ifdef MNG_INCLUDE_MPNG_PROPOSAL if (pData->pMPNG) /* drop MPNG data (if any) */ { fCleanup = ((mng_object_headerp)pData->pMPNG)->fCleanup; fCleanup (pData, pData->pMPNG); pData->pMPNG = MNG_NULL; } #endif #ifdef MNG_INCLUDE_ANG_PROPOSAL if (pData->pANG) /* drop ANG data (if any) */ { fCleanup = ((mng_object_headerp)pData->pANG)->fCleanup; fCleanup (pData, pData->pANG); pData->pANG = MNG_NULL; } #endif #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DROP_OBJECTS, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_SUPPORT_DISPLAY */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_DISPLAY #ifndef MNG_SKIPCHUNK_SAVE MNG_LOCAL mng_retcode mng_drop_savedata (mng_datap pData) { #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DROP_SAVEDATA, MNG_LC_START); #endif if (pData->pSavedata) /* sanity check */ { /* address it more directly */ mng_savedatap pSave = pData->pSavedata; if (pSave->iGlobalProfilesize) /* cleanup the profile ? */ MNG_FREEX (pData, pSave->pGlobalProfile, pSave->iGlobalProfilesize); /* cleanup the save structure */ MNG_FREE (pData, pData->pSavedata, sizeof (mng_savedata)); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (pData, MNG_FN_DROP_SAVEDATA, MNG_LC_END); #endif return MNG_NOERROR; } #endif #endif /* MNG_SUPPORT_DISPLAY */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_DISPLAY MNG_LOCAL mng_retcode mng_reset_rundata (mng_datap pData) { mng_drop_invalid_objects (pData); /* drop invalidly stored objects */ #ifndef MNG_SKIPCHUNK_SAVE mng_drop_savedata (pData); /* drop stored savedata */ #endif mng_reset_objzero (pData); /* reset object 0 */ /* drop stored objects (if any) */ mng_drop_objects (pData, MNG_FALSE); pData->bFramedone = MNG_FALSE; pData->iFrameseq = 0; /* reset counters & stuff */ pData->iLayerseq = 0; pData->iFrametime = 0; pData->bSkipping = MNG_FALSE; #ifdef MNG_SUPPORT_DYNAMICMNG pData->bRunningevent = MNG_FALSE; pData->bStopafterseek = MNG_FALSE; pData->iEventx = 0; pData->iEventy = 0; pData->pLastmousemove = MNG_NULL; #endif pData->iRequestframe = 0; pData->iRequestlayer = 0; pData->iRequesttime = 0; pData->bSearching = MNG_FALSE; pData->iRuntime = 0; pData->iSynctime = 0; pData->iStarttime = 0; pData->iEndtime = 0; pData->bRunning = MNG_FALSE; pData->bTimerset = MNG_FALSE; pData->iBreakpoint = 0; pData->bSectionwait = MNG_FALSE; pData->bFreezing = MNG_FALSE; pData->bResetting = MNG_FALSE; pData->bNeedrefresh = MNG_FALSE; pData->bOnlyfirstframe = MNG_FALSE; pData->iFramesafterTERM = 0; pData->iIterations = 0; /* start of animation objects! */ pData->pCurraniobj = MNG_NULL; pData->iUpdateleft = 0; /* reset region */ pData->iUpdateright = 0; pData->iUpdatetop = 0; pData->iUpdatebottom = 0; pData->iPLTEcount = 0; /* reset PLTE data */ #ifndef MNG_SKIPCHUNK_DEFI pData->iDEFIobjectid = 0; /* reset DEFI data */ pData->bDEFIhasdonotshow = MNG_FALSE; pData->iDEFIdonotshow = 0; pData->bDEFIhasconcrete = MNG_FALSE; pData->iDEFIconcrete = 0; pData->bDEFIhasloca = MNG_FALSE; pData->iDEFIlocax = 0; pData->iDEFIlocay = 0; pData->bDEFIhasclip = MNG_FALSE; pData->iDEFIclipl = 0; pData->iDEFIclipr = 0; pData->iDEFIclipt = 0; pData->iDEFIclipb = 0; #endif #ifndef MNG_SKIPCHUNK_BACK pData->iBACKred = 0; /* reset BACK data */ pData->iBACKgreen = 0; pData->iBACKblue = 0; pData->iBACKmandatory = 0; pData->iBACKimageid = 0; pData->iBACKtile = 0; #endif #ifndef MNG_SKIPCHUNK_FRAM pData->iFRAMmode = 1; /* default global FRAM variables */ pData->iFRAMdelay = 1; pData->iFRAMtimeout = 0x7fffffffl; pData->bFRAMclipping = MNG_FALSE; pData->iFRAMclipl = 0; pData->iFRAMclipr = 0; pData->iFRAMclipt = 0; pData->iFRAMclipb = 0; pData->iFramemode = 1; /* again for the current frame */ pData->iFramedelay = 1; pData->iFrametimeout = 0x7fffffffl; pData->bFrameclipping = MNG_FALSE; pData->iFrameclipl = 0; pData->iFrameclipr = 0; pData->iFrameclipt = 0; pData->iFrameclipb = 0; pData->iNextdelay = 1; pData->bForcedelay = MNG_FALSE; pData->iAccumdelay = 0; #endif #ifndef MNG_SKIPCHUNK_SHOW pData->iSHOWmode = 0; /* reset SHOW data */ pData->iSHOWfromid = 0; pData->iSHOWtoid = 0; pData->iSHOWnextid = 0; pData->iSHOWskip = 0; #endif pData->iGlobalPLTEcount = 0; /* reset global PLTE data */ pData->iGlobalTRNSrawlen = 0; /* reset global tRNS data */ pData->iGlobalGamma = 0; /* reset global gAMA data */ #ifndef MNG_SKIPCHUNK_cHRM pData->iGlobalWhitepointx = 0; /* reset global cHRM data */ pData->iGlobalWhitepointy = 0; pData->iGlobalPrimaryredx = 0; pData->iGlobalPrimaryredy = 0; pData->iGlobalPrimarygreenx = 0; pData->iGlobalPrimarygreeny = 0; pData->iGlobalPrimarybluex = 0; pData->iGlobalPrimarybluey = 0; #endif #ifndef MNG_SKIPCHUNK_sRGB pData->iGlobalRendintent = 0; /* reset global sRGB data */ #endif #ifndef MNG_SKIPCHUNK_iCCP if (pData->iGlobalProfilesize) /* drop global profile (if any) */ MNG_FREE (pData, pData->pGlobalProfile, pData->iGlobalProfilesize); pData->iGlobalProfilesize = 0; #endif #ifndef MNG_SKIPCHUNK_bKGD pData->iGlobalBKGDred = 0; /* reset global bKGD data */ pData->iGlobalBKGDgreen = 0; pData->iGlobalBKGDblue = 0; #endif #ifndef MNG_NO_DELTA_PNG /* reset delta-image */ pData->pDeltaImage = MNG_NULL; pData->iDeltaImagetype = 0; pData->iDeltatype = 0; pData->iDeltaBlockwidth = 0; pData->iDeltaBlockheight = 0; pData->iDeltaBlockx = 0; pData->iDeltaBlocky = 0; pData->bDeltaimmediate = MNG_FALSE; pData->fDeltagetrow = MNG_NULL; pData->fDeltaaddrow = MNG_NULL; pData->fDeltareplacerow = MNG_NULL; pData->fDeltaputrow = MNG_NULL; pData->fPromoterow = MNG_NULL; pData->fPromBitdepth = MNG_NULL; pData->pPromBuf = MNG_NULL; pData->iPromColortype = 0; pData->iPromBitdepth = 0; pData->iPromFilltype = 0; pData->iPromWidth = 0; pData->pPromSrc = MNG_NULL; pData->pPromDst = MNG_NULL; #endif #ifndef MNG_SKIPCHUNK_MAGN pData->iMAGNfromid = 0; pData->iMAGNtoid = 0; #endif #ifndef MNG_SKIPCHUNK_PAST pData->iPastx = 0; pData->iPasty = 0; #endif pData->pLastseek = MNG_NULL; return MNG_NOERROR; } #endif /* MNG_SUPPORT_DISPLAY */ /* ************************************************************************** */ MNG_LOCAL void cleanup_errors (mng_datap pData) { pData->iErrorcode = MNG_NOERROR; pData->iSeverity = 0; pData->iErrorx1 = 0; pData->iErrorx2 = 0; pData->zErrortext = MNG_NULL; return; } /* ************************************************************************** */ #ifdef MNG_SUPPORT_READ MNG_LOCAL mng_retcode make_pushbuffer (mng_datap pData, mng_ptr pPushdata, mng_size_t iLength, mng_bool bTakeownership, mng_pushdatap * pPush) { mng_pushdatap pTemp; MNG_ALLOC (pData, pTemp, sizeof(mng_pushdata)); pTemp->pNext = MNG_NULL; if (bTakeownership) /* are we going to own the buffer? */ { /* then just copy the pointer */ pTemp->pData = (mng_uint8p)pPushdata; } else { /* otherwise create new buffer */ MNG_ALLOCX (pData, pTemp->pData, iLength); if (!pTemp->pData) /* succeeded? */ { MNG_FREEX (pData, pTemp, sizeof(mng_pushdata)); MNG_ERROR (pData, MNG_OUTOFMEMORY); } /* and copy the bytes across */ MNG_COPY (pTemp->pData, pPushdata, iLength); } pTemp->iLength = iLength; pTemp->bOwned = bTakeownership; pTemp->pDatanext = pTemp->pData; pTemp->iRemaining = iLength; *pPush = pTemp; /* return it */ return MNG_NOERROR; /* and all's well */ } #endif #ifdef MNG_VERSION_QUERY_SUPPORT /* ************************************************************************** */ /* * * */ /* * Versioning control * */ /* * * */ /* ************************************************************************** */ mng_pchar MNG_DECL mng_version_text (void) { return MNG_VERSION_TEXT; } /* ************************************************************************** */ mng_uint8 MNG_DECL mng_version_so (void) { return MNG_VERSION_SO; } /* ************************************************************************** */ mng_uint8 MNG_DECL mng_version_dll (void) { return MNG_VERSION_DLL; } /* ************************************************************************** */ mng_uint8 MNG_DECL mng_version_major (void) { return MNG_VERSION_MAJOR; } /* ************************************************************************** */ mng_uint8 MNG_DECL mng_version_minor (void) { return MNG_VERSION_MINOR; } /* ************************************************************************** */ mng_uint8 MNG_DECL mng_version_release (void) { return MNG_VERSION_RELEASE; } /* ************************************************************************** */ mng_bool MNG_DECL mng_version_beta (void) { return MNG_VERSION_BETA; } #endif /* ************************************************************************** */ /* * * */ /* * 'supports' function * */ /* * * */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_FUNCQUERY typedef struct { mng_pchar zFunction; mng_uint8 iMajor; /* Major == 0 means not implemented ! */ mng_uint8 iMinor; mng_uint8 iRelease; } mng_func_entry; typedef mng_func_entry const * mng_func_entryp; MNG_LOCAL mng_func_entry const func_table [] = { /* keep it alphabetically sorted !!!!! */ {"mng_cleanup", 1, 0, 0}, {"mng_copy_chunk", 1, 0, 5}, {"mng_create", 1, 0, 0}, {"mng_display", 1, 0, 0}, {"mng_display_freeze", 1, 0, 0}, #ifndef MNG_NO_DISPLAY_GO_SUPPORTED {"mng_display_goframe", 1, 0, 0}, {"mng_display_golayer", 1, 0, 0}, {"mng_display_gotime", 1, 0, 0}, #endif {"mng_display_reset", 1, 0, 0}, {"mng_display_resume", 1, 0, 0}, {"mng_get_alphabitdepth", 1, 0, 0}, {"mng_get_alphacompression", 1, 0, 0}, {"mng_get_alphadepth", 1, 0, 0}, {"mng_get_alphafilter", 1, 0, 0}, {"mng_get_alphainterlace", 1, 0, 0}, {"mng_get_bgcolor", 1, 0, 0}, {"mng_get_bitdepth", 1, 0, 0}, {"mng_get_bkgdstyle", 1, 0, 0}, {"mng_get_cacheplayback", 1, 0, 2}, {"mng_get_canvasstyle", 1, 0, 0}, {"mng_get_colortype", 1, 0, 0}, {"mng_get_compression", 1, 0, 0}, #ifndef MNG_NO_CURRENT_INFO {"mng_get_currentframe", 1, 0, 0}, {"mng_get_currentlayer", 1, 0, 0}, {"mng_get_currentplaytime", 1, 0, 0}, #endif {"mng_get_currframdelay", 1, 0, 9}, #ifndef MNG_NO_DFLT_INFO {"mng_get_dfltimggamma", 1, 0, 0}, {"mng_get_dfltimggammaint", 1, 0, 0}, #endif {"mng_get_displaygamma", 1, 0, 0}, {"mng_get_displaygammaint", 1, 0, 0}, {"mng_get_doprogressive", 1, 0, 2}, {"mng_get_filter", 1, 0, 0}, {"mng_get_framecount", 1, 0, 0}, {"mng_get_imageheight", 1, 0, 0}, {"mng_get_imagelevel", 1, 0, 0}, {"mng_get_imagetype", 1, 0, 0}, {"mng_get_imagewidth", 1, 0, 0}, {"mng_get_interlace", 1, 0, 0}, #ifdef MNG_ACCESS_JPEG {"mng_get_jpeg_dctmethod", 1, 0, 0}, {"mng_get_jpeg_maxjdat", 1, 0, 0}, {"mng_get_jpeg_optimized", 1, 0, 0}, {"mng_get_jpeg_progressive", 1, 0, 0}, {"mng_get_jpeg_quality", 1, 0, 0}, {"mng_get_jpeg_smoothing", 1, 0, 0}, #endif {"mng_get_lastbackchunk", 1, 0, 3}, {"mng_get_lastseekname", 1, 0, 5}, {"mng_get_layercount", 1, 0, 0}, #ifndef MNG_SKIP_MAXCANVAS {"mng_get_maxcanvasheight", 1, 0, 0}, {"mng_get_maxcanvaswidth", 1, 0, 0}, #endif {"mng_get_playtime", 1, 0, 0}, {"mng_get_refreshpass", 1, 0, 0}, {"mng_get_runtime", 1, 0, 0}, {"mng_get_sectionbreaks", 1, 0, 0}, {"mng_get_sigtype", 1, 0, 0}, {"mng_get_simplicity", 1, 0, 0}, {"mng_get_speed", 1, 0, 0}, {"mng_get_srgb", 1, 0, 0}, {"mng_get_starttime", 1, 0, 0}, {"mng_get_storechunks", 1, 0, 0}, {"mng_get_suspensionmode", 1, 0, 0}, {"mng_get_ticks", 1, 0, 0}, #ifndef MNG_NO_CURRENT_INFO {"mng_get_totalframes", 1, 0, 5}, {"mng_get_totallayers", 1, 0, 5}, {"mng_get_totalplaytime", 1, 0, 5}, #endif {"mng_get_usebkgd", 1, 0, 0}, {"mng_get_userdata", 1, 0, 0}, #if defined(MNG_FULL_CMS) || defined(MNG_GAMMA_ONLY) || defined(MNG_APP_CMS) {"mng_get_viewgamma", 1, 0, 0}, {"mng_get_viewgammaint", 1, 0, 0}, #endif #ifdef MNG_ACCESS_ZLIB {"mng_get_zlib_level", 1, 0, 0}, {"mng_get_zlib_maxidat", 1, 0, 0}, {"mng_get_zlib_memlevel", 1, 0, 0}, {"mng_get_zlib_method", 1, 0, 0}, {"mng_get_zlib_strategy", 1, 0, 0}, {"mng_get_zlib_windowbits", 1, 0, 0}, #endif #ifndef MNG_NO_OPEN_CLOSE_STREAM {"mng_getcb_closestream", 1, 0, 0}, #endif {"mng_getcb_errorproc", 1, 0, 0}, {"mng_getcb_getalphaline", 1, 0, 0}, {"mng_getcb_getbkgdline", 1, 0, 0}, {"mng_getcb_getcanvasline", 1, 0, 0}, {"mng_getcb_gettickcount", 1, 0, 0}, {"mng_getcb_memalloc", 1, 0, 0}, {"mng_getcb_memfree", 1, 0, 0}, #ifndef MNG_NO_OPEN_CLOSE_STREAM {"mng_getcb_openstream", 1, 0, 0}, #endif {"mng_getcb_processarow", 1, 0, 0}, {"mng_getcb_processchroma", 1, 0, 0}, {"mng_getcb_processgamma", 1, 0, 0}, {"mng_getcb_processheader", 1, 0, 0}, {"mng_getcb_processiccp", 1, 0, 0}, {"mng_getcb_processmend", 1, 0, 1}, {"mng_getcb_processneed", 1, 0, 0}, {"mng_getcb_processsave", 1, 0, 0}, {"mng_getcb_processseek", 1, 0, 0}, {"mng_getcb_processsrgb", 1, 0, 0}, {"mng_getcb_processterm", 1, 0, 2}, {"mng_getcb_processtext", 1, 0, 0}, {"mng_getcb_processunknown", 1, 0, 0}, {"mng_getcb_readdata", 1, 0, 0}, {"mng_getcb_refresh", 1, 0, 0}, {"mng_getcb_releasedata", 1, 0, 8}, {"mng_getcb_settimer", 1, 0, 0}, {"mng_getcb_traceproc", 1, 0, 0}, {"mng_getcb_writedata", 1, 0, 0}, {"mng_getchunk_back", 1, 0, 0}, {"mng_getchunk_basi", 1, 0, 0}, #ifndef MNG_SKIPCHUNK_bKGD {"mng_getchunk_bkgd", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_cHRM {"mng_getchunk_chrm", 1, 0, 0}, #endif {"mng_getchunk_clip", 1, 0, 0}, {"mng_getchunk_clon", 1, 0, 0}, #ifndef MNG_NO_DELTA_PNG #ifndef MNG_SKIPCHUNK_dBYK {"mng_getchunk_dbyk", 1, 0, 0}, #endif #endif {"mng_getchunk_defi", 1, 0, 0}, #ifndef MNG_NO_DELTA_PNG {"mng_getchunk_dhdr", 1, 0, 0}, #endif {"mng_getchunk_disc", 1, 0, 0}, #ifndef MNG_NO_DELTA_PNG {"mng_getchunk_drop", 1, 0, 0}, #endif {"mng_getchunk_endl", 1, 0, 0}, #ifdef MNG_INCLUDE_MPNG_PROPOSAL {"mng_getchunk_mpng", 1, 0, 10}, {"mng_getchunk_mpng_frame", 1, 0, 10}, #endif #ifndef MNG_SKIPCHUNK_evNT {"mng_getchunk_evnt", 1, 0, 5}, {"mng_getchunk_evnt_entry", 1, 0, 5}, #endif #ifndef MNG_SKIPCHUNK_eXPI {"mng_getchunk_expi", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_fPRI {"mng_getchunk_fpri", 1, 0, 0}, #endif {"mng_getchunk_fram", 1, 0, 0}, {"mng_getchunk_gama", 1, 0, 0}, #ifndef MNG_SKIPCHUNK_hIST {"mng_getchunk_hist", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_iCCP {"mng_getchunk_iccp", 1, 0, 0}, #endif {"mng_getchunk_idat", 1, 0, 0}, {"mng_getchunk_iend", 1, 0, 0}, {"mng_getchunk_ihdr", 1, 0, 0}, #ifndef MNG_NO_DELTA_PNG #ifdef MNG_INCLUDE_JNG {"mng_getchunk_ijng", 1, 0, 0}, #endif {"mng_getchunk_ipng", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_iTXt {"mng_getchunk_itxt", 1, 0, 0}, #endif #ifdef MNG_INCLUDE_JNG {"mng_getchunk_jdaa", 1, 0, 0}, {"mng_getchunk_jdat", 1, 0, 0}, {"mng_getchunk_jhdr", 1, 0, 0}, {"mng_getchunk_jsep", 1, 0, 0}, #endif {"mng_getchunk_loop", 1, 0, 0}, #ifndef MNG_SKIPCHUNK_MAGN {"mng_getchunk_magn", 1, 0, 0}, #endif {"mng_getchunk_mend", 1, 0, 0}, {"mng_getchunk_mhdr", 1, 0, 0}, {"mng_getchunk_move", 1, 0, 0}, #ifndef MNG_SKIPCHUNK_nEED {"mng_getchunk_need", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_ORDR #ifndef MNG_NO_DELTA_PNG {"mng_getchunk_ordr", 1, 0, 0}, {"mng_getchunk_ordr_entry", 1, 0, 0}, #endif #endif #ifndef MNG_SKIPCHUNK_PAST {"mng_getchunk_past", 1, 0, 0}, {"mng_getchunk_past_src", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_pHYg {"mng_getchunk_phyg", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_pHYs {"mng_getchunk_phys", 1, 0, 0}, #endif #ifndef MNG_NO_DELTA_PNG {"mng_getchunk_plte", 1, 0, 0}, {"mng_getchunk_pplt", 1, 0, 0}, {"mng_getchunk_pplt_entry", 1, 0, 0}, {"mng_getchunk_prom", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_SAVE {"mng_getchunk_save", 1, 0, 0}, {"mng_getchunk_save_entry", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_sBIT {"mng_getchunk_sbit", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_SEEK {"mng_getchunk_seek", 1, 0, 0}, #endif {"mng_getchunk_show", 1, 0, 0}, #ifndef MNG_SKIPCHUNK_sPLT {"mng_getchunk_splt", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_sRGB {"mng_getchunk_srgb", 1, 0, 0}, #endif {"mng_getchunk_term", 1, 0, 0}, #ifndef MNG_SKIPCHUNK_tEXt {"mng_getchunk_text", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_tIME {"mng_getchunk_time", 1, 0, 0}, #endif {"mng_getchunk_trns", 1, 0, 0}, {"mng_getchunk_unkown", 1, 0, 0}, #ifndef MNG_SKIPCHUNK_zTXt {"mng_getchunk_ztxt", 1, 0, 0}, #endif {"mng_getimgdata_chunk", 0, 0, 0}, {"mng_getimgdata_chunkseq", 0, 0, 0}, {"mng_getimgdata_seq", 0, 0, 0}, {"mng_getlasterror", 1, 0, 0}, {"mng_initialize", 1, 0, 0}, {"mng_iterate_chunks", 1, 0, 0}, {"mng_putchunk_back", 1, 0, 0}, #ifndef MNG_SKIPCHUNK_BASI {"mng_putchunk_basi", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_bKGD {"mng_putchunk_bkgd", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_cHRM {"mng_putchunk_chrm", 1, 0, 0}, #endif {"mng_putchunk_clip", 1, 0, 0}, {"mng_putchunk_clon", 1, 0, 0}, #ifndef MNG_NO_DELTA_PNG #ifndef MNG_SKIPCHUNK_DBYK {"mng_putchunk_dbyk", 1, 0, 0}, #endif #endif {"mng_putchunk_defi", 1, 0, 0}, #ifndef MNG_NO_DELTA_PNG {"mng_putchunk_dhdr", 1, 0, 0}, #endif {"mng_putchunk_disc", 1, 0, 0}, #ifndef MNG_NO_DELTA_PNG {"mng_putchunk_drop", 1, 0, 0}, #endif {"mng_putchunk_endl", 1, 0, 0}, #ifdef MNG_INCLUDE_MPNG_PROPOSAL {"mng_putchunk_mpng", 1, 0, 10}, {"mng_putchunk_mpng_frame", 1, 0, 10}, #endif #ifndef MNG_SKIPCHUNK_evNT {"mng_putchunk_evnt", 1, 0, 5}, {"mng_putchunk_evnt_entry", 1, 0, 5}, #endif #ifndef MNG_SKIPCHUNK_eXPI {"mng_putchunk_expi", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_fPRI {"mng_putchunk_fpri", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_FRAM {"mng_putchunk_fram", 1, 0, 0}, #endif {"mng_putchunk_gama", 1, 0, 0}, #ifndef MNG_SKIPCHUNK_hIST {"mng_putchunk_hist", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_iCCP {"mng_putchunk_iccp", 1, 0, 0}, #endif {"mng_putchunk_idat", 1, 0, 0}, {"mng_putchunk_iend", 1, 0, 0}, {"mng_putchunk_ihdr", 1, 0, 0}, #ifndef MNG_NO_DELTA_PNG #ifdef MNG_INCLUDE_JNG {"mng_putchunk_ijng", 1, 0, 0}, #endif {"mng_putchunk_ipng", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_iTXt {"mng_putchunk_itxt", 1, 0, 0}, #endif #ifdef MNG_INCLUDE_JNG {"mng_putchunk_jdaa", 1, 0, 0}, {"mng_putchunk_jdat", 1, 0, 0}, {"mng_putchunk_jhdr", 1, 0, 0}, {"mng_putchunk_jsep", 1, 0, 0}, #endif {"mng_putchunk_loop", 1, 0, 0}, #ifndef MNG_SKIPCHUNK_MAGN {"mng_putchunk_magn", 1, 0, 0}, #endif {"mng_putchunk_mend", 1, 0, 0}, {"mng_putchunk_mhdr", 1, 0, 0}, {"mng_putchunk_move", 1, 0, 0}, #ifndef MNG_SKIPCHUNK_nEED {"mng_putchunk_need", 1, 0, 0}, #endif #ifndef MNG_NO_DELTA_PNG #ifndef MNG_SKIPCHUNK_ORDR {"mng_putchunk_ordr", 1, 0, 0}, {"mng_putchunk_ordr_entry", 1, 0, 0}, #endif #endif #ifndef MNG_SKIPCHUNK_PAST {"mng_putchunk_past", 1, 0, 0}, {"mng_putchunk_past_src", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_pHYg {"mng_putchunk_phyg", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_pHYs {"mng_putchunk_phys", 1, 0, 0}, #endif #ifndef MNG_NO_DELTA_PNG {"mng_putchunk_plte", 1, 0, 0}, {"mng_putchunk_pplt", 1, 0, 0}, {"mng_putchunk_pplt_entry", 1, 0, 0}, {"mng_putchunk_prom", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_SAVE {"mng_putchunk_save", 1, 0, 0}, {"mng_putchunk_save_entry", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_sBIT {"mng_putchunk_sbit", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_SEEK {"mng_putchunk_seek", 1, 0, 0}, #endif {"mng_putchunk_show", 1, 0, 0}, #ifndef MNG_SKIPCHUNK_sPLT {"mng_putchunk_splt", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_sRGB {"mng_putchunk_srgb", 1, 0, 0}, #endif {"mng_putchunk_term", 1, 0, 0}, #ifndef MNG_SKIPCHUNK_tEXt {"mng_putchunk_text", 1, 0, 0}, #endif #ifndef MNG_SKIPCHUNK_tIME {"mng_putchunk_time", 1, 0, 0}, #endif {"mng_putchunk_trns", 1, 0, 0}, {"mng_putchunk_unkown", 1, 0, 0}, #ifndef MNG_SKIPCHUNK_zTXt {"mng_putchunk_ztxt", 1, 0, 0}, #endif {"mng_putimgdata_ihdr", 0, 0, 0}, {"mng_putimgdata_jhdr", 0, 0, 0}, {"mng_reset", 1, 0, 0}, {"mng_read", 1, 0, 0}, {"mng_read_pushchunk", 1, 0, 8}, {"mng_read_pushdata", 1, 0, 8}, {"mng_read_pushsig", 1, 0, 8}, {"mng_read_resume", 1, 0, 0}, {"mng_readdisplay", 1, 0, 0}, {"mng_set_bgcolor", 1, 0, 0}, {"mng_set_bkgdstyle", 1, 0, 0}, {"mng_set_cacheplayback", 1, 0, 2}, {"mng_set_canvasstyle", 1, 0, 0}, {"mng_set_dfltimggamma", 1, 0, 0}, #ifndef MNG_NO_DFLT_INFO {"mng_set_dfltimggammaint", 1, 0, 0}, #endif {"mng_set_displaygamma", 1, 0, 0}, {"mng_set_displaygammaint", 1, 0, 0}, {"mng_set_doprogressive", 1, 0, 2}, #ifdef MNG_ACCESS_JPEG {"mng_set_jpeg_dctmethod", 1, 0, 0}, {"mng_set_jpeg_maxjdat", 1, 0, 0}, {"mng_set_jpeg_optimized", 1, 0, 0}, {"mng_set_jpeg_progressive", 1, 0, 0}, {"mng_set_jpeg_quality", 1, 0, 0}, {"mng_set_jpeg_smoothing", 1, 0, 0}, #endif #ifndef MNG_SKIP_MAXCANVAS {"mng_set_maxcanvasheight", 1, 0, 0}, {"mng_set_maxcanvassize", 1, 0, 0}, {"mng_set_maxcanvaswidth", 1, 0, 0}, #endif {"mng_set_outputprofile", 1, 0, 0}, {"mng_set_outputprofile2", 1, 0, 0}, {"mng_set_outputsrgb", 1, 0, 1}, {"mng_set_sectionbreaks", 1, 0, 0}, {"mng_set_speed", 1, 0, 0}, {"mng_set_srgb", 1, 0, 0}, {"mng_set_srgbimplicit", 1, 0, 1}, {"mng_set_srgbprofile", 1, 0, 0}, {"mng_set_srgbprofile2", 1, 0, 0}, {"mng_set_storechunks", 1, 0, 0}, {"mng_set_suspensionmode", 1, 0, 0}, {"mng_set_usebkgd", 1, 0, 0}, {"mng_set_userdata", 1, 0, 0}, #if defined(MNG_FULL_CMS) || defined(MNG_GAMMA_ONLY) || defined(MNG_APP_CMS) {"mng_set_viewgamma", 1, 0, 0}, {"mng_set_viewgammaint", 1, 0, 0}, #endif #ifdef MNG_ACCESS_ZLIB {"mng_set_zlib_level", 1, 0, 0}, {"mng_set_zlib_maxidat", 1, 0, 0}, {"mng_set_zlib_memlevel", 1, 0, 0}, {"mng_set_zlib_method", 1, 0, 0}, {"mng_set_zlib_strategy", 1, 0, 0}, {"mng_set_zlib_windowbits", 1, 0, 0}, #endif #ifndef MNG_NO_OPEN_CLOSE_STREAM {"mng_setcb_closestream", 1, 0, 0}, #endif {"mng_setcb_errorproc", 1, 0, 0}, {"mng_setcb_getalphaline", 1, 0, 0}, {"mng_setcb_getbkgdline", 1, 0, 0}, {"mng_setcb_getcanvasline", 1, 0, 0}, {"mng_setcb_gettickcount", 1, 0, 0}, {"mng_setcb_memalloc", 1, 0, 0}, {"mng_setcb_memfree", 1, 0, 0}, #ifndef MNG_NO_OPEN_CLOSE_STREAM {"mng_setcb_openstream", 1, 0, 0}, #endif {"mng_setcb_processarow", 1, 0, 0}, {"mng_setcb_processchroma", 1, 0, 0}, {"mng_setcb_processgamma", 1, 0, 0}, {"mng_setcb_processheader", 1, 0, 0}, {"mng_setcb_processiccp", 1, 0, 0}, {"mng_setcb_processmend", 1, 0, 1}, {"mng_setcb_processneed", 1, 0, 0}, {"mng_setcb_processsave", 1, 0, 0}, {"mng_setcb_processseek", 1, 0, 0}, {"mng_setcb_processsrgb", 1, 0, 0}, {"mng_setcb_processterm", 1, 0, 2}, {"mng_setcb_processtext", 1, 0, 0}, {"mng_setcb_processunknown", 1, 0, 0}, {"mng_setcb_readdata", 1, 0, 0}, {"mng_setcb_refresh", 1, 0, 0}, {"mng_setcb_releasedata", 1, 0, 8}, {"mng_setcb_settimer", 1, 0, 0}, {"mng_setcb_traceproc", 1, 0, 0}, {"mng_setcb_writedata", 1, 0, 0}, {"mng_status_creating", 1, 0, 0}, {"mng_status_displaying", 1, 0, 0}, {"mng_status_dynamic", 1, 0, 5}, {"mng_status_error", 1, 0, 0}, {"mng_status_reading", 1, 0, 0}, {"mng_status_running", 1, 0, 0}, {"mng_status_runningevent", 1, 0, 5}, {"mng_status_suspendbreak", 1, 0, 0}, {"mng_status_timerbreak", 1, 0, 0}, {"mng_status_writing", 1, 0, 0}, {"mng_supports_func", 1, 0, 5}, {"mng_trapevent", 1, 0, 5}, {"mng_updatemngheader", 1, 0, 0}, {"mng_updatemngsimplicity", 1, 0, 0}, {"mng_version_beta", 1, 0, 5}, {"mng_version_dll", 1, 0, 0}, {"mng_version_major", 1, 0, 0}, {"mng_version_minor", 1, 0, 0}, {"mng_version_release", 1, 0, 0}, {"mng_version_so", 1, 0, 0}, {"mng_version_text", 1, 0, 0}, {"mng_write", 1, 0, 0}, }; mng_bool MNG_DECL mng_supports_func (mng_pchar zFunction, mng_uint8* iMajor, mng_uint8* iMinor, mng_uint8* iRelease) { mng_int32 iTop, iLower, iUpper, iMiddle; mng_func_entryp pEntry; /* pointer to found entry */ /* determine max index of table */ iTop = (sizeof (func_table) / sizeof (func_table [0])) - 1; iLower = 0; /* initialize binary search */ iMiddle = iTop >> 1; /* start in the middle */ iUpper = iTop; pEntry = 0; /* no goods yet! */ do /* the binary search itself */ { mng_int32 iRslt = strcmp(func_table [iMiddle].zFunction, zFunction); if (iRslt < 0) iLower = iMiddle + 1; else if (iRslt > 0) iUpper = iMiddle - 1; else { pEntry = &func_table [iMiddle]; break; }; iMiddle = (iLower + iUpper) >> 1; } while (iLower <= iUpper); if (pEntry) /* found it ? */ { *iMajor = pEntry->iMajor; *iMinor = pEntry->iMinor; *iRelease = pEntry->iRelease; return MNG_TRUE; } else { *iMajor = 0; *iMinor = 0; *iRelease = 0; return MNG_FALSE; } } #endif /* ************************************************************************** */ /* * * */ /* * HLAPI routines * */ /* * * */ /* ************************************************************************** */ mng_handle MNG_DECL mng_initialize (mng_ptr pUserdata, mng_memalloc fMemalloc, mng_memfree fMemfree, mng_traceproc fTraceproc) { mng_datap pData; #ifdef MNG_SUPPORT_DISPLAY mng_retcode iRetcode; mng_imagep pImage; #endif #ifdef MNG_INTERNAL_MEMMNGMT /* allocate the main datastruc */ pData = (mng_datap)calloc (1, sizeof (mng_data)); #else pData = (mng_datap)fMemalloc (sizeof (mng_data)); #endif if (!pData) return MNG_NULL; /* error: out of memory?? */ /* validate the structure */ pData->iMagic = MNG_MAGIC; /* save userdata field */ pData->pUserdata = pUserdata; /* remember trace callback */ pData->fTraceproc = fTraceproc; #ifdef MNG_SUPPORT_TRACE if (mng_trace (pData, MNG_FN_INITIALIZE, MNG_LC_INITIALIZE)) { MNG_FREEX (pData, pData, sizeof (mng_data)); return MNG_NULL; } #endif /* default canvas styles are 8-bit RGB */ pData->iCanvasstyle = MNG_CANVAS_RGB8; pData->iBkgdstyle = MNG_CANVAS_RGB8; pData->iBGred = 0; /* black */ pData->iBGgreen = 0; pData->iBGblue = 0; pData->bUseBKGD = MNG_TRUE; #ifdef MNG_FULL_CMS pData->bIssRGB = MNG_TRUE; pData->hProf1 = 0; /* no profiles yet */ pData->hProf2 = 0; pData->hProf3 = 0; pData->hTrans = 0; #endif pData->dViewgamma = 1.0; pData->dDisplaygamma = 2.2; pData->dDfltimggamma = 0.45455; /* initially remember chunks */ pData->bStorechunks = MNG_TRUE; /* no breaks at section-borders */ pData->bSectionbreaks = MNG_FALSE; /* initially cache playback info */ pData->bCacheplayback = MNG_TRUE; /* progressive refresh for large images */ pData->bDoProgressive = MNG_TRUE; /* crc exists; should check; error for critical chunks; warning for ancillery; generate crc for output */ pData->iCrcmode = MNG_CRC_DEFAULT; /* normal animation-speed ! */ pData->iSpeed = mng_st_normal; /* initial image limits */ pData->iMaxwidth = 10000; pData->iMaxheight = 10000; #ifdef MNG_INTERNAL_MEMMNGMT /* internal management */ pData->fMemalloc = MNG_NULL; pData->fMemfree = MNG_NULL; #else /* keep callbacks */ pData->fMemalloc = fMemalloc; pData->fMemfree = fMemfree; #endif /* no value (yet) */ pData->fReleasedata = MNG_NULL; #ifndef MNG_NO_OPEN_CLOSE_STREAM pData->fOpenstream = MNG_NULL; pData->fClosestream = MNG_NULL; #endif pData->fReaddata = MNG_NULL; pData->fWritedata = MNG_NULL; pData->fErrorproc = MNG_NULL; pData->fProcessheader = MNG_NULL; pData->fProcesstext = MNG_NULL; pData->fProcesssave = MNG_NULL; pData->fProcessseek = MNG_NULL; pData->fProcessneed = MNG_NULL; pData->fProcessmend = MNG_NULL; pData->fProcessunknown = MNG_NULL; pData->fProcessterm = MNG_NULL; pData->fGetcanvasline = MNG_NULL; pData->fGetbkgdline = MNG_NULL; pData->fGetalphaline = MNG_NULL; pData->fRefresh = MNG_NULL; pData->fGettickcount = MNG_NULL; pData->fSettimer = MNG_NULL; pData->fProcessgamma = MNG_NULL; pData->fProcesschroma = MNG_NULL; pData->fProcesssrgb = MNG_NULL; pData->fProcessiccp = MNG_NULL; pData->fProcessarow = MNG_NULL; #if defined(MNG_SUPPORT_DISPLAY) && (defined(MNG_GAMMA_ONLY) || defined(MNG_FULL_CMS)) pData->dLastgamma = 0; /* lookup table needs first-time calc */ #endif #ifdef MNG_SUPPORT_DISPLAY /* create object 0 */ iRetcode = mng_create_imageobject (pData, 0, MNG_TRUE, MNG_TRUE, MNG_TRUE, 0, 0, 0, 0, 0, 0, 0, 0, 0, MNG_FALSE, 0, 0, 0, 0, &pImage); if (iRetcode) /* on error drop out */ { MNG_FREEX (pData, pData, sizeof (mng_data)); return MNG_NULL; } pData->pObjzero = pImage; #endif #if defined(MNG_SUPPORT_DISPLAY) && defined(MNG_INCLUDE_LCMS) mnglcms_initlibrary (); /* init lcms particulars */ #endif #ifdef MNG_SUPPORT_READ pData->bSuspensionmode = MNG_FALSE; pData->iSuspendbufsize = 0; pData->pSuspendbuf = MNG_NULL; pData->pSuspendbufnext = MNG_NULL; pData->iSuspendbufleft = 0; pData->iChunklen = 0; pData->pReadbufnext = MNG_NULL; pData->pLargebufnext = MNG_NULL; pData->pFirstpushchunk = MNG_NULL; pData->pLastpushchunk = MNG_NULL; pData->pFirstpushdata = MNG_NULL; pData->pLastpushdata = MNG_NULL; #endif #ifdef MNG_INCLUDE_ZLIB mngzlib_initialize (pData); /* initialize zlib structures and such */ /* default zlib compression parameters */ pData->iZlevel = MNG_ZLIB_LEVEL; pData->iZmethod = MNG_ZLIB_METHOD; pData->iZwindowbits = MNG_ZLIB_WINDOWBITS; pData->iZmemlevel = MNG_ZLIB_MEMLEVEL; pData->iZstrategy = MNG_ZLIB_STRATEGY; /* default maximum IDAT data size */ pData->iMaxIDAT = MNG_MAX_IDAT_SIZE; #endif #ifdef MNG_INCLUDE_JNG /* default IJG compression parameters */ pData->eJPEGdctmethod = MNG_JPEG_DCT; pData->iJPEGquality = MNG_JPEG_QUALITY; pData->iJPEGsmoothing = MNG_JPEG_SMOOTHING; pData->bJPEGcompressprogr = MNG_JPEG_PROGRESSIVE; pData->bJPEGcompressopt = MNG_JPEG_OPTIMIZED; /* default maximum JDAT data size */ pData->iMaxJDAT = MNG_MAX_JDAT_SIZE; #endif mng_reset ((mng_handle)pData); #ifdef MNG_SUPPORT_TRACE if (mng_trace (pData, MNG_FN_INITIALIZE, MNG_LC_END)) { MNG_FREEX (pData, pData, sizeof (mng_data)); return MNG_NULL; } #endif return (mng_handle)pData; /* if we get here, we're in business */ } /* ************************************************************************** */ mng_retcode MNG_DECL mng_reset (mng_handle hHandle) { mng_datap pData; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_RESET, MNG_LC_START); #endif MNG_VALIDHANDLE (hHandle) /* check validity handle */ pData = ((mng_datap)(hHandle)); /* address main structure */ #ifdef MNG_SUPPORT_DISPLAY #ifndef MNG_SKIPCHUNK_SAVE mng_drop_savedata (pData); /* cleanup saved-data from SAVE/SEEK */ #endif #endif #if defined(MNG_SUPPORT_DISPLAY) && defined(MNG_FULL_CMS) mng_clear_cms (pData); /* cleanup left-over cms stuff if any */ #endif #if defined(MNG_SUPPORT_DISPLAY) && defined(MNG_INCLUDE_JNG) mngjpeg_cleanup (pData); /* cleanup jpeg stuff */ #endif #ifdef MNG_INCLUDE_ZLIB if (pData->bInflating) /* if we've been inflating */ { #ifdef MNG_INCLUDE_DISPLAY_PROCS mng_cleanup_rowproc (pData); /* cleanup row-processing, */ #endif mngzlib_inflatefree (pData); /* cleanup inflate! */ } #endif /* MNG_INCLUDE_ZLIB */ #ifdef MNG_SUPPORT_READ if ((pData->bReading) && (!pData->bEOF)) mng_process_eof (pData); /* cleanup app streaming */ /* cleanup default read buffers */ MNG_FREE (pData, pData->pReadbuf, pData->iReadbufsize); MNG_FREE (pData, pData->pLargebuf, pData->iLargebufsize); MNG_FREE (pData, pData->pSuspendbuf, pData->iSuspendbufsize); while (pData->pFirstpushdata) /* release any pushed data & chunks */ mng_release_pushdata (pData); while (pData->pFirstpushchunk) mng_release_pushchunk (pData); #endif #ifdef MNG_SUPPORT_WRITE /* cleanup default write buffer */ MNG_FREE (pData, pData->pWritebuf, pData->iWritebufsize); #endif #if defined(MNG_SUPPORT_READ) || defined(MNG_SUPPORT_WRITE) mng_drop_chunks (pData); /* drop stored chunks (if any) */ #endif #ifdef MNG_SUPPORT_DISPLAY mng_drop_objects (pData, MNG_TRUE); /* drop stored objects (if any) */ #ifndef MNG_SKIPCHUNK_iCCP if (pData->iGlobalProfilesize) /* drop global profile (if any) */ MNG_FREEX (pData, pData->pGlobalProfile, pData->iGlobalProfilesize); #endif #endif pData->eSigtype = mng_it_unknown; pData->eImagetype = mng_it_unknown; pData->iWidth = 0; /* these are unknown yet */ pData->iHeight = 0; pData->iTicks = 0; pData->iLayercount = 0; pData->iFramecount = 0; pData->iPlaytime = 0; pData->iSimplicity = 0; pData->iAlphadepth = 16; /* assume the worst! */ pData->iImagelevel = 0; /* no image encountered */ pData->iMagnify = 0; /* 1-to-1 display */ pData->iOffsetx = 0; /* no offsets */ pData->iOffsety = 0; pData->iCanvaswidth = 0; /* let the app decide during processheader */ pData->iCanvasheight = 0; /* so far, so good */ pData->iErrorcode = MNG_NOERROR; pData->iSeverity = 0; pData->iErrorx1 = 0; pData->iErrorx2 = 0; pData->zErrortext = MNG_NULL; #if defined(MNG_SUPPORT_READ) || defined(MNG_SUPPORT_WRITE) /* let's assume the best scenario */ #ifndef MNG_NO_OLD_VERSIONS pData->bPreDraft48 = MNG_FALSE; #endif /* the unknown chunk */ pData->iChunkname = MNG_UINT_HUH; pData->iChunkseq = 0; pData->pFirstchunk = MNG_NULL; pData->pLastchunk = MNG_NULL; /* nothing processed yet */ pData->bHasheader = MNG_FALSE; pData->bHasMHDR = MNG_FALSE; pData->bHasIHDR = MNG_FALSE; pData->bHasBASI = MNG_FALSE; pData->bHasDHDR = MNG_FALSE; #ifdef MNG_INCLUDE_JNG pData->bHasJHDR = MNG_FALSE; pData->bHasJSEP = MNG_FALSE; pData->bHasJDAA = MNG_FALSE; pData->bHasJDAT = MNG_FALSE; #endif pData->bHasPLTE = MNG_FALSE; pData->bHasTRNS = MNG_FALSE; pData->bHasGAMA = MNG_FALSE; pData->bHasCHRM = MNG_FALSE; pData->bHasSRGB = MNG_FALSE; pData->bHasICCP = MNG_FALSE; pData->bHasBKGD = MNG_FALSE; pData->bHasIDAT = MNG_FALSE; pData->bHasSAVE = MNG_FALSE; pData->bHasBACK = MNG_FALSE; pData->bHasFRAM = MNG_FALSE; pData->bHasTERM = MNG_FALSE; pData->bHasLOOP = MNG_FALSE; /* there's no global stuff yet either */ pData->bHasglobalPLTE = MNG_FALSE; pData->bHasglobalTRNS = MNG_FALSE; pData->bHasglobalGAMA = MNG_FALSE; pData->bHasglobalCHRM = MNG_FALSE; pData->bHasglobalSRGB = MNG_FALSE; pData->bHasglobalICCP = MNG_FALSE; pData->iDatawidth = 0; /* no IHDR/BASI/DHDR done yet */ pData->iDataheight = 0; pData->iBitdepth = 0; pData->iColortype = 0; pData->iCompression = 0; pData->iFilter = 0; pData->iInterlace = 0; #ifdef MNG_INCLUDE_JNG pData->iJHDRcolortype = 0; /* no JHDR data */ pData->iJHDRimgbitdepth = 0; pData->iJHDRimgcompression = 0; pData->iJHDRimginterlace = 0; pData->iJHDRalphabitdepth = 0; pData->iJHDRalphacompression = 0; pData->iJHDRalphafilter = 0; pData->iJHDRalphainterlace = 0; #endif #endif /* MNG_SUPPORT_READ || MNG_SUPPORT_WRITE */ #ifdef MNG_SUPPORT_READ /* no reading done */ pData->bReading = MNG_FALSE; pData->bHavesig = MNG_FALSE; pData->bEOF = MNG_FALSE; pData->iReadbufsize = 0; pData->pReadbuf = MNG_NULL; pData->iLargebufsize = 0; pData->pLargebuf = MNG_NULL; pData->iSuspendtime = 0; pData->bSuspended = MNG_FALSE; pData->iSuspendpoint = 0; pData->pSuspendbufnext = pData->pSuspendbuf; pData->iSuspendbufleft = 0; #endif /* MNG_SUPPORT_READ */ #ifdef MNG_SUPPORT_WRITE /* no creating/writing done */ pData->bCreating = MNG_FALSE; pData->bWriting = MNG_FALSE; pData->iFirstchunkadded = 0; pData->iWritebufsize = 0; pData->pWritebuf = MNG_NULL; #endif /* MNG_SUPPORT_WRITE */ #ifdef MNG_SUPPORT_DISPLAY /* done nuttin' yet */ pData->bDisplaying = MNG_FALSE; pData->iFrameseq = 0; pData->iLayerseq = 0; pData->iFrametime = 0; pData->iTotallayers = 0; pData->iTotalframes = 0; pData->iTotalplaytime = 0; pData->bSkipping = MNG_FALSE; #ifdef MNG_SUPPORT_DYNAMICMNG pData->bDynamic = MNG_FALSE; pData->bRunningevent = MNG_FALSE; pData->bStopafterseek = MNG_FALSE; pData->iEventx = 0; pData->iEventy = 0; pData->pLastmousemove = MNG_NULL; #endif pData->iRequestframe = 0; pData->iRequestlayer = 0; pData->iRequesttime = 0; pData->bSearching = MNG_FALSE; pData->bRestorebkgd = MNG_FALSE; pData->iRuntime = 0; pData->iSynctime = 0; pData->iStarttime = 0; pData->iEndtime = 0; pData->bRunning = MNG_FALSE; pData->bTimerset = MNG_FALSE; pData->iBreakpoint = 0; pData->bSectionwait = MNG_FALSE; pData->bFreezing = MNG_FALSE; pData->bResetting = MNG_FALSE; pData->bNeedrefresh = MNG_FALSE; pData->bMisplacedTERM = MNG_FALSE; pData->bOnlyfirstframe = MNG_FALSE; pData->iFramesafterTERM = 0; /* these don't exist yet */ pData->pCurrentobj = MNG_NULL; pData->pCurraniobj = MNG_NULL; pData->pTermaniobj = MNG_NULL; pData->pLastclone = MNG_NULL; pData->pStoreobj = MNG_NULL; pData->pStorebuf = MNG_NULL; pData->pRetrieveobj = MNG_NULL; /* no saved data ! */ pData->pSavedata = MNG_NULL; pData->iUpdateleft = 0; /* no region updated yet */ pData->iUpdateright = 0; pData->iUpdatetop = 0; pData->iUpdatebottom = 0; pData->iPass = -1; /* interlacing stuff and temp buffers */ pData->iRow = 0; pData->iRowinc = 1; pData->iCol = 0; pData->iColinc = 1; pData->iRowsamples = 0; pData->iSamplemul = 0; pData->iSampleofs = 0; pData->iSamplediv = 0; pData->iRowsize = 0; pData->iRowmax = 0; pData->iFilterofs = 0; pData->iPixelofs = 1; pData->iLevel0 = 0; pData->iLevel1 = 0; pData->iLevel2 = 0; pData->iLevel3 = 0; pData->pWorkrow = MNG_NULL; pData->pPrevrow = MNG_NULL; pData->pRGBArow = MNG_NULL; pData->bIsRGBA16 = MNG_TRUE; pData->bIsOpaque = MNG_TRUE; pData->iFilterbpp = 1; pData->iSourcel = 0; /* always initialized just before */ pData->iSourcer = 0; /* compositing the next layer */ pData->iSourcet = 0; pData->iSourceb = 0; pData->iDestl = 0; pData->iDestr = 0; pData->iDestt = 0; pData->iDestb = 0; /* lists are empty */ pData->pFirstimgobj = MNG_NULL; pData->pLastimgobj = MNG_NULL; pData->pFirstaniobj = MNG_NULL; pData->pLastaniobj = MNG_NULL; #ifdef MNG_SUPPORT_DYNAMICMNG pData->pFirstevent = MNG_NULL; pData->pLastevent = MNG_NULL; #endif /* no processing callbacks */ pData->fDisplayrow = MNG_NULL; pData->fRestbkgdrow = MNG_NULL; pData->fCorrectrow = MNG_NULL; pData->fRetrieverow = MNG_NULL; pData->fStorerow = MNG_NULL; pData->fProcessrow = MNG_NULL; pData->fDifferrow = MNG_NULL; pData->fScalerow = MNG_NULL; pData->fDeltarow = MNG_NULL; #ifndef MNG_SKIPCHUNK_PAST pData->fFliprow = MNG_NULL; pData->fTilerow = MNG_NULL; #endif pData->fInitrowproc = MNG_NULL; pData->iPLTEcount = 0; /* no PLTE data */ #ifndef MNG_SKIPCHUNK_DEFI pData->iDEFIobjectid = 0; /* no DEFI data */ pData->bDEFIhasdonotshow = MNG_FALSE; pData->iDEFIdonotshow = 0; pData->bDEFIhasconcrete = MNG_FALSE; pData->iDEFIconcrete = 0; pData->bDEFIhasloca = MNG_FALSE; pData->iDEFIlocax = 0; pData->iDEFIlocay = 0; pData->bDEFIhasclip = MNG_FALSE; pData->iDEFIclipl = 0; pData->iDEFIclipr = 0; pData->iDEFIclipt = 0; pData->iDEFIclipb = 0; #endif #ifndef MNG_SKIPCHUNK_BACK pData->iBACKred = 0; /* no BACK data */ pData->iBACKgreen = 0; pData->iBACKblue = 0; pData->iBACKmandatory = 0; pData->iBACKimageid = 0; pData->iBACKtile = 0; #endif #ifndef MNG_SKIPCHUNK_FRAM pData->iFRAMmode = 1; /* default global FRAM variables */ pData->iFRAMdelay = 1; pData->iFRAMtimeout = 0x7fffffffl; pData->bFRAMclipping = MNG_FALSE; pData->iFRAMclipl = 0; pData->iFRAMclipr = 0; pData->iFRAMclipt = 0; pData->iFRAMclipb = 0; pData->iFramemode = 1; /* again for the current frame */ pData->iFramedelay = 1; pData->iFrametimeout = 0x7fffffffl; pData->bFrameclipping = MNG_FALSE; pData->iFrameclipl = 0; pData->iFrameclipr = 0; pData->iFrameclipt = 0; pData->iFrameclipb = 0; pData->iNextdelay = 1; pData->bForcedelay = MNG_FALSE; pData->iAccumdelay = 0; #endif #ifndef MNG_SKIPCHUNK_SHOW pData->iSHOWmode = 0; /* no SHOW data */ pData->iSHOWfromid = 0; pData->iSHOWtoid = 0; pData->iSHOWnextid = 0; pData->iSHOWskip = 0; #endif pData->iGlobalPLTEcount = 0; /* no global PLTE data */ pData->iGlobalTRNSrawlen = 0; /* no global tRNS data */ pData->iGlobalGamma = 0; /* no global gAMA data */ #ifndef MNG_SKIPCHUNK_cHRM pData->iGlobalWhitepointx = 0; /* no global cHRM data */ pData->iGlobalWhitepointy = 0; pData->iGlobalPrimaryredx = 0; pData->iGlobalPrimaryredy = 0; pData->iGlobalPrimarygreenx = 0; pData->iGlobalPrimarygreeny = 0; pData->iGlobalPrimarybluex = 0; pData->iGlobalPrimarybluey = 0; #endif pData->iGlobalRendintent = 0; /* no global sRGB data */ #ifndef MNG_SKIPCHUNK_iCCP pData->iGlobalProfilesize = 0; /* no global iCCP data */ pData->pGlobalProfile = MNG_NULL; #endif #ifndef MNG_SKIPCHUNK_bKGD pData->iGlobalBKGDred = 0; /* no global bKGD data */ pData->iGlobalBKGDgreen = 0; pData->iGlobalBKGDblue = 0; #endif /* no delta-image */ #ifndef MNG_NO_DELTA_PNG pData->pDeltaImage = MNG_NULL; pData->iDeltaImagetype = 0; pData->iDeltatype = 0; pData->iDeltaBlockwidth = 0; pData->iDeltaBlockheight = 0; pData->iDeltaBlockx = 0; pData->iDeltaBlocky = 0; pData->bDeltaimmediate = MNG_FALSE; pData->fDeltagetrow = MNG_NULL; pData->fDeltaaddrow = MNG_NULL; pData->fDeltareplacerow = MNG_NULL; pData->fDeltaputrow = MNG_NULL; pData->fPromoterow = MNG_NULL; pData->fPromBitdepth = MNG_NULL; pData->pPromBuf = MNG_NULL; pData->iPromColortype = 0; pData->iPromBitdepth = 0; pData->iPromFilltype = 0; pData->iPromWidth = 0; pData->pPromSrc = MNG_NULL; pData->pPromDst = MNG_NULL; #endif #ifndef MNG_SKIPCHUNK_MAGN pData->iMAGNfromid = 0; pData->iMAGNtoid = 0; #endif #ifndef MNG_SKIPCHUNK_PAST pData->iPastx = 0; pData->iPasty = 0; #endif pData->pLastseek = MNG_NULL; #endif #ifdef MNG_INCLUDE_ZLIB pData->bInflating = 0; /* no inflating or deflating */ pData->bDeflating = 0; /* going on at the moment */ #endif #ifdef MNG_SUPPORT_DISPLAY /* reset object 0 */ mng_reset_objzero (pData); #endif #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_RESET, MNG_LC_END); #endif return MNG_NOERROR; } /* ************************************************************************** */ mng_retcode MNG_DECL mng_cleanup (mng_handle* hHandle) { mng_datap pData; /* local vars */ #ifndef MNG_INTERNAL_MEMMNGMT mng_memfree fFree; #endif #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)*hHandle), MNG_FN_CLEANUP, MNG_LC_START); #endif MNG_VALIDHANDLE (*hHandle) /* check validity handle */ pData = ((mng_datap)(*hHandle)); /* and address main structure */ mng_reset (*hHandle); /* do an implicit reset to cleanup most stuff */ #ifdef MNG_SUPPORT_DISPLAY /* drop object 0 */ mng_free_imageobject (pData, (mng_imagep)pData->pObjzero); #endif #if defined(MNG_SUPPORT_DISPLAY) && defined(MNG_FULL_CMS) if (pData->hProf2) /* output profile defined ? */ mnglcms_freeprofile (pData->hProf2); if (pData->hProf3) /* sRGB profile defined ? */ mnglcms_freeprofile (pData->hProf3); #endif #ifdef MNG_INCLUDE_ZLIB mngzlib_cleanup (pData); /* cleanup zlib stuff */ #endif #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)*hHandle), MNG_FN_CLEANUP, MNG_LC_CLEANUP) #endif pData->iMagic = 0; /* invalidate the actual memory */ #ifdef MNG_INTERNAL_MEMMNGMT free ((void *)*hHandle); /* cleanup the data-structure */ #else fFree = ((mng_datap)*hHandle)->fMemfree; fFree ((mng_ptr)*hHandle, sizeof (mng_data)); #endif *hHandle = 0; /* wipe pointer to inhibit future use */ return MNG_NOERROR; /* and we're done */ } /* ************************************************************************** */ #ifdef MNG_SUPPORT_READ mng_retcode MNG_DECL mng_read (mng_handle hHandle) { mng_datap pData; /* local vars */ mng_retcode iRetcode; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_READ, MNG_LC_START); #endif MNG_VALIDHANDLE (hHandle) /* check validity handle and callbacks */ pData = ((mng_datap)hHandle); /* and make it addressable */ #ifndef MNG_INTERNAL_MEMMNGMT MNG_VALIDCB (hHandle, fMemalloc) MNG_VALIDCB (hHandle, fMemfree) #endif #ifndef MNG_NO_OPEN_CLOSE_STREAM MNG_VALIDCB (hHandle, fOpenstream) MNG_VALIDCB (hHandle, fClosestream) #endif MNG_VALIDCB (hHandle, fReaddata) #ifdef MNG_SUPPORT_DISPLAY /* valid at this point ? */ if ((pData->bReading) || (pData->bDisplaying)) #else if (pData->bReading) #endif MNG_ERROR (pData, MNG_FUNCTIONINVALID); #ifdef MNG_SUPPORT_WRITE if ((pData->bWriting) || (pData->bCreating)) MNG_ERROR (pData, MNG_FUNCTIONINVALID); #endif if (!pData->bCacheplayback) /* must store playback info to work!! */ MNG_ERROR (pData, MNG_FUNCTIONINVALID); cleanup_errors (pData); /* cleanup previous errors */ pData->bReading = MNG_TRUE; /* read only! */ #ifndef MNG_NO_OPEN_CLOSE_STREAM if (pData->fOpenstream && !pData->fOpenstream (hHandle)) /* open it and start reading */ iRetcode = MNG_APPIOERROR; else #endif iRetcode = mng_read_graphic (pData); if (pData->bEOF) /* already at EOF ? */ { pData->bReading = MNG_FALSE; /* then we're no longer reading */ #ifdef MNG_SUPPORT_DISPLAY mng_reset_rundata (pData); /* reset rundata */ #endif } if (iRetcode) /* on error bail out */ return iRetcode; if (pData->bSuspended) /* read suspension ? */ { iRetcode = MNG_NEEDMOREDATA; pData->iSuspendtime = pData->fGettickcount ((mng_handle)pData); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_READ, MNG_LC_END); #endif return iRetcode; } #endif /* MNG_SUPPORT_READ */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_READ mng_retcode MNG_DECL mng_read_pushdata (mng_handle hHandle, mng_ptr pData, mng_size_t iLength, mng_bool bTakeownership) { mng_datap pMyData; /* local vars */ mng_pushdatap pPush; mng_retcode iRetcode; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_READ_PUSHDATA, MNG_LC_START); #endif MNG_VALIDHANDLE (hHandle) /* check validity handle */ pMyData = ((mng_datap)hHandle); /* and make it addressable */ /* create a containing buffer */ iRetcode = make_pushbuffer (pMyData, pData, iLength, bTakeownership, &pPush); if (iRetcode) return iRetcode; if (pMyData->pLastpushdata) /* and update the buffer chain */ pMyData->pLastpushdata->pNext = pPush; else pMyData->pFirstpushdata = pPush; pMyData->pLastpushdata = pPush; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_READ_PUSHDATA, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_SUPPORT_READ */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_READ mng_retcode MNG_DECL mng_read_pushsig (mng_handle hHandle, mng_imgtype eSigtype) { mng_datap pData; /* local vars */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_READ_PUSHSIG, MNG_LC_START); #endif MNG_VALIDHANDLE (hHandle) /* check validity handle */ pData = ((mng_datap)hHandle); /* and make it addressable */ if (pData->bHavesig) /* can we expect this call ? */ MNG_ERROR (pData, MNG_FUNCTIONINVALID); pData->eSigtype = eSigtype; pData->bHavesig = MNG_TRUE; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_READ_PUSHSIG, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_SUPPORT_READ */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_READ mng_retcode MNG_DECL mng_read_pushchunk (mng_handle hHandle, mng_ptr pChunk, mng_size_t iLength, mng_bool bTakeownership) { mng_datap pMyData; /* local vars */ mng_pushdatap pPush; mng_retcode iRetcode; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_READ_PUSHCHUNK, MNG_LC_START); #endif MNG_VALIDHANDLE (hHandle) /* check validity handle */ pMyData = ((mng_datap)hHandle); /* and make it addressable */ /* create a containing buffer */ iRetcode = make_pushbuffer (pMyData, pChunk, iLength, bTakeownership, &pPush); if (iRetcode) return iRetcode; if (pMyData->pLastpushchunk) /* and update the buffer chain */ pMyData->pLastpushchunk->pNext = pPush; else pMyData->pFirstpushchunk = pPush; pMyData->pLastpushchunk = pPush; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_READ_PUSHCHUNK, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_SUPPORT_READ */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_READ mng_retcode MNG_DECL mng_read_resume (mng_handle hHandle) { mng_datap pData; /* local vars */ mng_retcode iRetcode; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_READ_RESUME, MNG_LC_START); #endif MNG_VALIDHANDLE (hHandle) /* check validity handle */ pData = ((mng_datap)hHandle); /* and make it addressable */ /* can we expect this call ? */ if ((!pData->bReading) || (!pData->bSuspended)) MNG_ERROR (pData, MNG_FUNCTIONINVALID); cleanup_errors (pData); /* cleanup previous errors */ pData->bSuspended = MNG_FALSE; /* reset the flag */ #ifdef MNG_SUPPORT_DISPLAY /* re-synchronize ? */ if ((pData->bDisplaying) && (pData->bRunning)) pData->iSynctime = pData->iSynctime - pData->iSuspendtime + pData->fGettickcount (hHandle); #endif iRetcode = mng_read_graphic (pData); /* continue reading now */ if (pData->bEOF) /* at EOF ? */ { pData->bReading = MNG_FALSE; /* then we're no longer reading */ #ifdef MNG_SUPPORT_DISPLAY mng_reset_rundata (pData); /* reset rundata */ #endif } if (iRetcode) /* on error bail out */ return iRetcode; if (pData->bSuspended) /* read suspension ? */ { iRetcode = MNG_NEEDMOREDATA; pData->iSuspendtime = pData->fGettickcount ((mng_handle)pData); } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_READ_RESUME, MNG_LC_END); #endif return iRetcode; } #endif /* MNG_SUPPORT_READ */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_WRITE mng_retcode MNG_DECL mng_write (mng_handle hHandle) { mng_datap pData; mng_retcode iRetcode; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_WRITE, MNG_LC_START); #endif MNG_VALIDHANDLE (hHandle) /* check validity handle and callbacks */ pData = ((mng_datap)hHandle); /* and make it addressable */ #ifndef MNG_INTERNAL_MEMMNGMT MNG_VALIDCB (hHandle, fMemalloc) MNG_VALIDCB (hHandle, fMemfree) #endif #ifndef MNG_NO_OPEN_CLOSE_STREAM MNG_VALIDCB (hHandle, fOpenstream) MNG_VALIDCB (hHandle, fClosestream) #endif MNG_VALIDCB (hHandle, fWritedata) #ifdef MNG_SUPPORT_READ if (pData->bReading) /* valid at this point ? */ MNG_ERROR (pData, MNG_FUNCTIONINVALID); #endif cleanup_errors (pData); /* cleanup previous errors */ iRetcode = mng_write_graphic (pData);/* do the write */ if (iRetcode) /* on error bail out */ return iRetcode; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_WRITE, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_SUPPORT_WRITE */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_WRITE mng_retcode MNG_DECL mng_create (mng_handle hHandle) { mng_datap pData; mng_retcode iRetcode; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_CREATE, MNG_LC_START); #endif MNG_VALIDHANDLE (hHandle) /* check validity handle and callbacks */ pData = ((mng_datap)hHandle); /* and make it addressable */ #ifndef MNG_INTERNAL_MEMMNGMT MNG_VALIDCB (hHandle, fMemalloc) MNG_VALIDCB (hHandle, fMemfree) #endif #ifdef MNG_SUPPORT_READ if (pData->bReading) /* valid at this point ? */ MNG_ERROR (pData, MNG_FUNCTIONINVALID); #endif if ((pData->bWriting) || (pData->bCreating)) MNG_ERROR (pData, MNG_FUNCTIONINVALID); cleanup_errors (pData); /* cleanup previous errors */ iRetcode = mng_reset (hHandle); /* clear any previous stuff */ if (iRetcode) /* on error bail out */ return iRetcode; pData->bCreating = MNG_TRUE; /* indicate we're creating a new file */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_CREATE, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_SUPPORT_WRITE */ /* ************************************************************************** */ #if defined(MNG_SUPPORT_DISPLAY) && defined(MNG_SUPPORT_READ) mng_retcode MNG_DECL mng_readdisplay (mng_handle hHandle) { mng_datap pData; /* local vars */ mng_retcode iRetcode; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_READDISPLAY, MNG_LC_START); #endif MNG_VALIDHANDLE (hHandle) /* check validity handle and callbacks */ pData = ((mng_datap)hHandle); /* and make it addressable */ #ifndef MNG_INTERNAL_MEMMNGMT MNG_VALIDCB (hHandle, fMemalloc) MNG_VALIDCB (hHandle, fMemfree) #endif MNG_VALIDCB (hHandle, fReaddata) MNG_VALIDCB (hHandle, fGetcanvasline) MNG_VALIDCB (hHandle, fRefresh) MNG_VALIDCB (hHandle, fGettickcount) MNG_VALIDCB (hHandle, fSettimer) /* valid at this point ? */ if ((pData->bReading) || (pData->bDisplaying)) MNG_ERROR (pData, MNG_FUNCTIONINVALID); #ifdef MNG_SUPPORT_WRITE if ((pData->bWriting) || (pData->bCreating)) MNG_ERROR (pData, MNG_FUNCTIONINVALID); #endif cleanup_errors (pData); /* cleanup previous errors */ pData->bReading = MNG_TRUE; /* read & display! */ pData->bDisplaying = MNG_TRUE; pData->bRunning = MNG_TRUE; pData->iFrameseq = 0; pData->iLayerseq = 0; pData->iFrametime = 0; pData->iRequestframe = 0; pData->iRequestlayer = 0; pData->iRequesttime = 0; pData->bSearching = MNG_FALSE; pData->iRuntime = 0; pData->iSynctime = pData->fGettickcount (hHandle); pData->iSuspendtime = 0; pData->iStarttime = pData->iSynctime; pData->iEndtime = 0; #ifndef MNG_NO_OPEN_CLOSE_STREAM if (pData->fOpenstream && !pData->fOpenstream (hHandle)) /* open it and start reading */ iRetcode = MNG_APPIOERROR; else #endif iRetcode = mng_read_graphic (pData); if (pData->bEOF) /* already at EOF ? */ { pData->bReading = MNG_FALSE; /* then we're no longer reading */ mng_drop_invalid_objects (pData); /* drop invalidly stored objects */ } if (iRetcode) /* on error bail out */ return iRetcode; if (pData->bSuspended) /* read suspension ? */ { iRetcode = MNG_NEEDMOREDATA; pData->iSuspendtime = pData->fGettickcount ((mng_handle)pData); } else if (pData->bTimerset) /* indicate timer break ? */ iRetcode = MNG_NEEDTIMERWAIT; else if (pData->bSectionwait) /* indicate section break ? */ iRetcode = MNG_NEEDSECTIONWAIT; else { /* no breaks = end of run */ pData->bRunning = MNG_FALSE; if (pData->bFreezing) /* dynamic MNG reached SEEK ? */ pData->bFreezing = MNG_FALSE; /* reset it ! */ } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_READDISPLAY, MNG_LC_END); #endif return iRetcode; } #endif /* MNG_SUPPORT_DISPLAY && MNG_SUPPORT_READ */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_DISPLAY mng_retcode MNG_DECL mng_display (mng_handle hHandle) { mng_datap pData; /* local vars */ mng_retcode iRetcode; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_DISPLAY, MNG_LC_START); #endif MNG_VALIDHANDLE (hHandle) /* check validity handle and callbacks */ pData = ((mng_datap)hHandle); /* and make it addressable */ #ifndef MNG_INTERNAL_MEMMNGMT MNG_VALIDCB (hHandle, fMemalloc) MNG_VALIDCB (hHandle, fMemfree) #endif MNG_VALIDCB (hHandle, fGetcanvasline) MNG_VALIDCB (hHandle, fRefresh) MNG_VALIDCB (hHandle, fGettickcount) MNG_VALIDCB (hHandle, fSettimer) if (pData->bDisplaying) /* valid at this point ? */ MNG_ERROR (pData, MNG_FUNCTIONINVALID); #ifdef MNG_SUPPORT_READ if (pData->bReading) MNG_ERROR (pData, MNG_FUNCTIONINVALID); #endif #ifdef MNG_SUPPORT_WRITE if ((pData->bWriting) || (pData->bCreating)) MNG_ERROR (pData, MNG_FUNCTIONINVALID); #endif cleanup_errors (pData); /* cleanup previous errors */ pData->bDisplaying = MNG_TRUE; /* display! */ pData->bRunning = MNG_TRUE; pData->iFrameseq = 0; pData->iLayerseq = 0; pData->iFrametime = 0; pData->iRequestframe = 0; pData->iRequestlayer = 0; pData->iRequesttime = 0; pData->bSearching = MNG_FALSE; pData->iRuntime = 0; pData->iSynctime = pData->fGettickcount (hHandle); #ifdef MNG_SUPPORT_READ pData->iSuspendtime = 0; #endif pData->iStarttime = pData->iSynctime; pData->iEndtime = 0; pData->pCurraniobj = pData->pFirstaniobj; /* go do it */ iRetcode = mng_process_display (pData); if (iRetcode) /* on error bail out */ return iRetcode; if (pData->bTimerset) /* indicate timer break ? */ iRetcode = MNG_NEEDTIMERWAIT; else { /* no breaks = end of run */ pData->bRunning = MNG_FALSE; if (pData->bFreezing) /* dynamic MNG reached SEEK ? */ pData->bFreezing = MNG_FALSE; /* reset it ! */ } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_DISPLAY, MNG_LC_END); #endif return iRetcode; } #endif /* MNG_SUPPORT_DISPLAY */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_DISPLAY mng_retcode MNG_DECL mng_display_resume (mng_handle hHandle) { mng_datap pData; /* local vars */ mng_retcode iRetcode; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_DISPLAY_RESUME, MNG_LC_START); #endif MNG_VALIDHANDLE (hHandle) /* check validity handle */ pData = ((mng_datap)hHandle); /* and make it addressable */ if (!pData->bDisplaying) /* can we expect this call ? */ MNG_ERROR (pData, MNG_FUNCTIONINVALID); cleanup_errors (pData); /* cleanup previous errors */ /* was it running ? */ if ((pData->bRunning) || (pData->bReading)) { /* are we expecting this call ? */ if ((pData->bTimerset) || (pData->bSuspended) || (pData->bSectionwait)) { pData->bTimerset = MNG_FALSE; /* reset the flags */ pData->bSectionwait = MNG_FALSE; #ifdef MNG_SUPPORT_READ if (pData->bReading) /* set during read&display ? */ { if (pData->bSuspended) /* calculate proper synchronization */ pData->iSynctime = pData->iSynctime - pData->iSuspendtime + pData->fGettickcount (hHandle); else pData->iSynctime = pData->fGettickcount (hHandle); pData->bSuspended = MNG_FALSE; /* now reset this flag */ /* and continue reading */ iRetcode = mng_read_graphic (pData); if (pData->bEOF) /* already at EOF ? */ { pData->bReading = MNG_FALSE; /* then we're no longer reading */ /* drop invalidly stored objects */ mng_drop_invalid_objects (pData); } } else #endif /* MNG_SUPPORT_READ */ { /* synchronize timing */ pData->iSynctime = pData->fGettickcount (hHandle); /* resume display processing */ iRetcode = mng_process_display (pData); } } else { MNG_ERROR (pData, MNG_FUNCTIONINVALID); } } else { /* synchronize timing */ pData->iSynctime = pData->fGettickcount (hHandle); pData->bRunning = MNG_TRUE; /* it's restarted again ! */ /* resume display processing */ iRetcode = mng_process_display (pData); } if (iRetcode) /* on error bail out */ return iRetcode; if (pData->bSuspended) /* read suspension ? */ { iRetcode = MNG_NEEDMOREDATA; pData->iSuspendtime = pData->fGettickcount ((mng_handle)pData); } else if (pData->bTimerset) /* indicate timer break ? */ iRetcode = MNG_NEEDTIMERWAIT; else if (pData->bSectionwait) /* indicate section break ? */ iRetcode = MNG_NEEDSECTIONWAIT; else { /* no breaks = end of run */ pData->bRunning = MNG_FALSE; if (pData->bFreezing) /* trying to freeze ? */ pData->bFreezing = MNG_FALSE; /* then we're there */ if (pData->bResetting) /* trying to reset as well ? */ { /* full stop!!! */ pData->bDisplaying = MNG_FALSE; iRetcode = mng_reset_rundata (pData); if (iRetcode) /* on error bail out */ return iRetcode; } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_DISPLAY_RESUME, MNG_LC_END); #endif return iRetcode; } #endif /* MNG_SUPPORT_DISPLAY */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_DISPLAY mng_retcode MNG_DECL mng_display_freeze (mng_handle hHandle) { mng_datap pData; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_DISPLAY_FREEZE, MNG_LC_START); #endif MNG_VALIDHANDLE (hHandle) /* check validity handle */ pData = ((mng_datap)hHandle); /* and make it addressable */ /* can we expect this call ? */ if ((!pData->bDisplaying) || (pData->bReading)) MNG_ERROR (pData, MNG_FUNCTIONINVALID); cleanup_errors (pData); /* cleanup previous errors */ if (pData->bRunning) /* is it running ? */ { mng_retcode iRetcode; pData->bFreezing = MNG_TRUE; /* indicate we need to freeze */ /* continue "normal" processing */ iRetcode = mng_display_resume (hHandle); if (iRetcode) /* on error bail out */ return iRetcode; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_DISPLAY_FREEZE, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_SUPPORT_DISPLAY */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_DISPLAY mng_retcode MNG_DECL mng_display_reset (mng_handle hHandle) { mng_datap pData; mng_retcode iRetcode; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_DISPLAY_RESET, MNG_LC_START); #endif MNG_VALIDHANDLE (hHandle) /* check validity handle */ pData = ((mng_datap)hHandle); /* and make it addressable */ /* can we expect this call ? */ if ((!pData->bDisplaying) || (pData->bReading)) MNG_ERROR (pData, MNG_FUNCTIONINVALID); if (!pData->bCacheplayback) /* must store playback info to work!! */ MNG_ERROR (pData, MNG_FUNCTIONINVALID); cleanup_errors (pData); /* cleanup previous errors */ if (pData->bRunning) /* is it running ? */ { pData->bFreezing = MNG_TRUE; /* indicate we need to freeze */ pData->bResetting = MNG_TRUE; /* indicate we're about to reset too */ /* continue normal processing ? */ iRetcode = mng_display_resume (hHandle); if (iRetcode) /* on error bail out */ return iRetcode; } else { /* full stop!!! */ pData->bDisplaying = MNG_FALSE; iRetcode = mng_reset_rundata (pData); if (iRetcode) /* on error bail out */ return iRetcode; } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_DISPLAY_RESET, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* MNG_SUPPORT_DISPLAY */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_DISPLAY #ifndef MNG_NO_DISPLAY_GO_SUPPORTED mng_retcode MNG_DECL mng_display_goframe (mng_handle hHandle, mng_uint32 iFramenr) { mng_datap pData; mng_retcode iRetcode; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_DISPLAY_GOFRAME, MNG_LC_START); #endif MNG_VALIDHANDLE (hHandle) /* check validity handle */ pData = ((mng_datap)hHandle); /* and make it addressable */ if (pData->eImagetype != mng_it_mng) /* is it an animation ? */ MNG_ERROR (pData, MNG_NOTANANIMATION); /* can we expect this call ? */ if ((!pData->bDisplaying) || (pData->bRunning)) MNG_ERROR ((mng_datap)hHandle, MNG_FUNCTIONINVALID); if (!pData->bCacheplayback) /* must store playback info to work!! */ MNG_ERROR (pData, MNG_FUNCTIONINVALID); if (iFramenr > pData->iTotalframes) /* is the parameter within bounds ? */ MNG_ERROR (pData, MNG_FRAMENRTOOHIGH); /* within MHDR bounds ? */ if ((pData->iFramecount) && (iFramenr > pData->iFramecount)) MNG_WARNING (pData, MNG_FRAMENRTOOHIGH); cleanup_errors (pData); /* cleanup previous errors */ if (pData->iFrameseq > iFramenr) /* search from current or go back to start ? */ { iRetcode = mng_reset_rundata (pData); if (iRetcode) /* on error bail out */ return iRetcode; } if (iFramenr) { pData->iRequestframe = iFramenr; /* go find the requested frame then */ iRetcode = mng_process_display (pData); if (iRetcode) /* on error bail out */ return iRetcode; pData->bTimerset = MNG_FALSE; /* reset just to be safe */ } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_DISPLAY_GOFRAME, MNG_LC_END); #endif return MNG_NOERROR; } #endif #endif /* MNG_SUPPORT_DISPLAY */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_DISPLAY #ifndef MNG_NO_DISPLAY_GO_SUPPORTED mng_retcode MNG_DECL mng_display_golayer (mng_handle hHandle, mng_uint32 iLayernr) { mng_datap pData; mng_retcode iRetcode; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_DISPLAY_GOLAYER, MNG_LC_START); #endif MNG_VALIDHANDLE (hHandle) /* check validity handle */ pData = ((mng_datap)hHandle); /* and make it addressable */ if (pData->eImagetype != mng_it_mng) /* is it an animation ? */ MNG_ERROR (pData, MNG_NOTANANIMATION); /* can we expect this call ? */ if ((!pData->bDisplaying) || (pData->bRunning)) MNG_ERROR (pData, MNG_FUNCTIONINVALID); if (!pData->bCacheplayback) /* must store playback info to work!! */ MNG_ERROR (pData, MNG_FUNCTIONINVALID); if (iLayernr > pData->iTotallayers) /* is the parameter within bounds ? */ MNG_ERROR (pData, MNG_LAYERNRTOOHIGH); /* within MHDR bounds ? */ if ((pData->iLayercount) && (iLayernr > pData->iLayercount)) MNG_WARNING (pData, MNG_LAYERNRTOOHIGH); cleanup_errors (pData); /* cleanup previous errors */ if (pData->iLayerseq > iLayernr) /* search from current or go back to start ? */ { iRetcode = mng_reset_rundata (pData); if (iRetcode) /* on error bail out */ return iRetcode; } if (iLayernr) { pData->iRequestlayer = iLayernr; /* go find the requested layer then */ iRetcode = mng_process_display (pData); if (iRetcode) /* on error bail out */ return iRetcode; pData->bTimerset = MNG_FALSE; /* reset just to be safe */ } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_DISPLAY_GOLAYER, MNG_LC_END); #endif return MNG_NOERROR; } #endif #endif /* MNG_SUPPORT_DISPLAY */ /* ************************************************************************** */ #ifdef MNG_SUPPORT_DISPLAY #ifndef MNG_NO_DISPLAY_GO_SUPPORTED mng_retcode MNG_DECL mng_display_gotime (mng_handle hHandle, mng_uint32 iPlaytime) { mng_datap pData; mng_retcode iRetcode; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_DISPLAY_GOTIME, MNG_LC_START); #endif MNG_VALIDHANDLE (hHandle) /* check validity handle */ pData = ((mng_datap)hHandle); /* and make it addressable */ if (pData->eImagetype != mng_it_mng) /* is it an animation ? */ MNG_ERROR (pData, MNG_NOTANANIMATION); /* can we expect this call ? */ if ((!pData->bDisplaying) || (pData->bRunning)) MNG_ERROR (pData, MNG_FUNCTIONINVALID); if (!pData->bCacheplayback) /* must store playback info to work!! */ MNG_ERROR (pData, MNG_FUNCTIONINVALID); /* is the parameter within bounds ? */ if (iPlaytime > pData->iTotalplaytime) MNG_ERROR (pData, MNG_PLAYTIMETOOHIGH); /* within MHDR bounds ? */ if ((pData->iPlaytime) && (iPlaytime > pData->iPlaytime)) MNG_WARNING (pData, MNG_PLAYTIMETOOHIGH); cleanup_errors (pData); /* cleanup previous errors */ if (pData->iFrametime > iPlaytime) /* search from current or go back to start ? */ { iRetcode = mng_reset_rundata (pData); if (iRetcode) /* on error bail out */ return iRetcode; } if (iPlaytime) { pData->iRequesttime = iPlaytime; /* go find the requested playtime then */ iRetcode = mng_process_display (pData); if (iRetcode) /* on error bail out */ return iRetcode; pData->bTimerset = MNG_FALSE; /* reset just to be safe */ } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_DISPLAY_GOTIME, MNG_LC_END); #endif return MNG_NOERROR; } #endif #endif /* MNG_SUPPORT_DISPLAY */ /* ************************************************************************** */ #if defined(MNG_SUPPORT_DISPLAY) && defined(MNG_SUPPORT_DYNAMICMNG) mng_retcode MNG_DECL mng_trapevent (mng_handle hHandle, mng_uint8 iEventtype, mng_int32 iX, mng_int32 iY) { mng_datap pData; mng_eventp pEvent; mng_bool bFound = MNG_FALSE; mng_retcode iRetcode; mng_imagep pImage; mng_uint8p pPixel; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_TRAPEVENT, MNG_LC_START); #endif MNG_VALIDHANDLE (hHandle) /* check validity handle */ pData = ((mng_datap)hHandle); /* and make it addressable */ if (pData->eImagetype != mng_it_mng) /* is it an animation ? */ MNG_ERROR (pData, MNG_NOTANANIMATION); if (!pData->bDisplaying) /* can we expect this call ? */ MNG_ERROR (pData, MNG_FUNCTIONINVALID); if (!pData->bCacheplayback) /* must store playback info to work!! */ MNG_ERROR (pData, MNG_FUNCTIONINVALID); /* let's find a matching event object */ pEvent = (mng_eventp)pData->pFirstevent; while ((pEvent) && (!bFound)) { /* matching eventtype ? */ if (pEvent->iEventtype == iEventtype) { switch (pEvent->iMasktype) /* check X/Y on basis of masktype */ { case MNG_MASK_NONE : /* no mask is easy */ { bFound = MNG_TRUE; break; } case MNG_MASK_BOX : /* inside the given box ? */ { /* right- and bottom-border don't count ! */ if ((iX >= pEvent->iLeft) && (iX < pEvent->iRight) && (iY >= pEvent->iTop) && (iY < pEvent->iBottom)) bFound = MNG_TRUE; break; } case MNG_MASK_OBJECT : /* non-zero pixel in the image object ? */ { pImage = mng_find_imageobject (pData, pEvent->iObjectid); /* valid image ? */ if ((pImage) && (pImage->pImgbuf->iBitdepth <= 8) && ((pImage->pImgbuf->iColortype == 0) || (pImage->pImgbuf->iColortype == 3)) && ((mng_int32)pImage->pImgbuf->iWidth > iX) && ((mng_int32)pImage->pImgbuf->iHeight > iY)) { pPixel = pImage->pImgbuf->pImgdata + ((pImage->pImgbuf->iWidth * iY) + iX); if (*pPixel) /* non-zero ? */ bFound = MNG_TRUE; } break; } case MNG_MASK_OBJECTIX : /* pixel in the image object matches index ? */ { pImage = mng_find_imageobject (pData, pEvent->iObjectid); /* valid image ? */ if ((pImage) && (pImage->pImgbuf->iBitdepth <= 8) && ((pImage->pImgbuf->iColortype == 0) || (pImage->pImgbuf->iColortype == 3)) && ((mng_int32)pImage->pImgbuf->iWidth > iX) && (iX >= 0) && ((mng_int32)pImage->pImgbuf->iHeight > iY) && (iY >= 0)) { pPixel = pImage->pImgbuf->pImgdata + ((pImage->pImgbuf->iWidth * iY) + iX); /* matching index ? */ if (*pPixel == pEvent->iIndex) bFound = MNG_TRUE; } break; } case MNG_MASK_BOXOBJECT : /* non-zero pixel in the image object ? */ { mng_int32 iTempx = iX - pEvent->iLeft; mng_int32 iTempy = iY - pEvent->iTop; pImage = mng_find_imageobject (pData, pEvent->iObjectid); /* valid image ? */ if ((pImage) && (pImage->pImgbuf->iBitdepth <= 8) && ((pImage->pImgbuf->iColortype == 0) || (pImage->pImgbuf->iColortype == 3)) && (iTempx < (mng_int32)pImage->pImgbuf->iWidth) && (iTempx >= 0) && (iX < pEvent->iRight) && (iTempy < (mng_int32)pImage->pImgbuf->iHeight) && (iTempy >= 0) && (iY < pEvent->iBottom)) { pPixel = pImage->pImgbuf->pImgdata + ((pImage->pImgbuf->iWidth * iTempy) + iTempx); if (*pPixel) /* non-zero ? */ bFound = MNG_TRUE; } break; } case MNG_MASK_BOXOBJECTIX : /* pixel in the image object matches index ? */ { mng_int32 iTempx = iX - pEvent->iLeft; mng_int32 iTempy = iY - pEvent->iTop; pImage = mng_find_imageobject (pData, pEvent->iObjectid); /* valid image ? */ if ((pImage) && (pImage->pImgbuf->iBitdepth <= 8) && ((pImage->pImgbuf->iColortype == 0) || (pImage->pImgbuf->iColortype == 3)) && (iTempx < (mng_int32)pImage->pImgbuf->iWidth) && (iTempx >= 0) && (iX < pEvent->iRight) && (iTempy < (mng_int32)pImage->pImgbuf->iHeight) && (iTempy >= 0) && (iY < pEvent->iBottom)) { pPixel = pImage->pImgbuf->pImgdata + ((pImage->pImgbuf->iWidth * iTempy) + iTempx); /* matching index ? */ if (*pPixel == pEvent->iIndex) bFound = MNG_TRUE; } break; } } } if (!bFound) /* try the next one */ pEvent = (mng_eventp)pEvent->sHeader.pNext; } /* found one that's not the last mousemove ? */ if ((pEvent) && ((mng_objectp)pEvent != pData->pLastmousemove)) { /* can we start an event process now ? */ if ((!pData->bReading) && (!pData->bRunning)) { pData->iEventx = iX; /* save coordinates */ pData->iEventy = iY; /* do it then ! */ iRetcode = pEvent->sHeader.fProcess (pData, pEvent); if (iRetcode) /* on error bail out */ return iRetcode; /* remember last mousemove event */ if (pEvent->iEventtype == MNG_EVENT_MOUSEMOVE) pData->pLastmousemove = (mng_objectp)pEvent; else pData->pLastmousemove = MNG_NULL; } else { /* TODO: store unprocessed events or not ??? */ } } #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_TRAPEVENT, MNG_LC_END); #endif return MNG_NOERROR; } #endif /* ************************************************************************** */ mng_retcode MNG_DECL mng_getlasterror (mng_handle hHandle, mng_int8* iSeverity, mng_chunkid* iChunkname, mng_uint32* iChunkseq, mng_int32* iExtra1, mng_int32* iExtra2, mng_pchar* zErrortext) { mng_datap pData; /* local vars */ #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_GETLASTERROR, MNG_LC_START); #endif MNG_VALIDHANDLE (hHandle) /* check validity handle */ pData = ((mng_datap)hHandle); /* and make it addressable */ *iSeverity = pData->iSeverity; /* return the appropriate fields */ #if defined(MNG_SUPPORT_READ) || defined(MNG_SUPPORT_WRITE) *iChunkname = pData->iChunkname; *iChunkseq = pData->iChunkseq; #else *iChunkname = MNG_UINT_HUH; *iChunkseq = 0; #endif *iExtra1 = pData->iErrorx1; *iExtra2 = pData->iErrorx2; *zErrortext = pData->zErrortext; #ifdef MNG_SUPPORT_TRACE MNG_TRACE (((mng_datap)hHandle), MNG_FN_GETLASTERROR, MNG_LC_END); #endif return pData->iErrorcode; /* and the errorcode */ } /* ************************************************************************** */ /* * end of file * */ /* ************************************************************************** */