#include "config.h"
/* ************************************************************************** */
/* * 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;
#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;
#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 * */
/* ************************************************************************** */