/src/FreeImage/Source/LibMNG/libmng_hlapi.c
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1/* ************************************************************************** */ 2/* * For conditions of distribution and use, * */ 3/* * see copyright notice in libmng.h * */ 4/* ************************************************************************** */ 5/* * * */ 6/* * project : libmng * */ 7/* * file : libmng_hlapi.c copyright (c) 2000-2007 G.Juyn * */ 8/* * version : 1.0.10 * */ 9/* * * */ 10/* * purpose : high-level application API (implementation) * */ 11/* * * */ 12/* * author : G.Juyn * */ 13/* * * */ 14/* * comment : implementation of the high-level function interface * */ 15/* * for applications. * */ 16/* * * */ 17/* * changes : 0.5.1 - 05/06/2000 - G.Juyn * */ 18/* * - added init of iPLTEcount * */ 19/* * 0.5.1 - 05/08/2000 - G.Juyn * */ 20/* * - changed calling-convention definition * */ 21/* * - changed status-handling of display-routines * */ 22/* * - added versioning-control routines * */ 23/* * - filled the write routine * */ 24/* * - changed strict-ANSI stuff * */ 25/* * 0.5.1 - 05/11/2000 - G.Juyn * */ 26/* * - added callback error-reporting support * */ 27/* * 0.5.1 - 05/12/2000 - G.Juyn * */ 28/* * - changed trace to macro for callback error-reporting * */ 29/* * 0.5.1 - 05/13/2000 - G.Juyn * */ 30/* * - added eMNGma hack (will be removed in 1.0.0 !!!) * */ 31/* * - added TERM animation object pointer (easier reference) * */ 32/* * 0.5.1 - 05/14/2000 - G.Juyn * */ 33/* * - added cleanup of saved-data (SAVE/SEEK processing) * */ 34/* * 0.5.1 - 05/16/2000 - G.Juyn * */ 35/* * - moved the actual write_graphic functionality from here * */ 36/* * to its appropriate function in the mng_write module * */ 37/* * * */ 38/* * 0.5.2 - 05/19/2000 - G.Juyn * */ 39/* * - cleaned up some code regarding mixed support * */ 40/* * - added JNG support * */ 41/* * 0.5.2 - 05/24/2000 - G.Juyn * */ 42/* * - moved init of default zlib parms here from "mng_zlib.c" * */ 43/* * - added init of default IJG parms * */ 44/* * 0.5.2 - 05/29/2000 - G.Juyn * */ 45/* * - fixed inconsistancy with freeing global iCCP profile * */ 46/* * 0.5.2 - 05/30/2000 - G.Juyn * */ 47/* * - added delta-image field initialization * */ 48/* * 0.5.2 - 06/06/2000 - G.Juyn * */ 49/* * - added initialization of the buffer-suspend parameter * */ 50/* * * */ 51/* * 0.5.3 - 06/16/2000 - G.Juyn * */ 52/* * - added initialization of update-region for refresh * */ 53/* * - added initialization of Needrefresh parameter * */ 54/* * 0.5.3 - 06/17/2000 - G.Juyn * */ 55/* * - added initialization of Deltaimmediate * */ 56/* * 0.5.3 - 06/21/2000 - G.Juyn * */ 57/* * - added initialization of Speed * */ 58/* * - added initialization of Imagelevel * */ 59/* * 0.5.3 - 06/26/2000 - G.Juyn * */ 60/* * - changed userdata variable to mng_ptr * */ 61/* * 0.5.3 - 06/29/2000 - G.Juyn * */ 62/* * - fixed initialization routine for new mng_handle type * */ 63/* * * */ 64/* * 0.9.1 - 07/06/2000 - G.Juyn * */ 65/* * - changed mng_display_resume to allow to be called after * */ 66/* * a suspension return with MNG_NEEDMOREDATA * */ 67/* * - added returncode MNG_NEEDTIMERWAIT for timer breaks * */ 68/* * 0.9.1 - 07/07/2000 - G.Juyn * */ 69/* * - implemented support for freeze/reset/resume & go_xxxx * */ 70/* * 0.9.1 - 07/08/2000 - G.Juyn * */ 71/* * - added support for improved timing * */ 72/* * - added support for improved I/O-suspension * */ 73/* * 0.9.1 - 07/14/2000 - G.Juyn * */ 74/* * - changed EOF processing behavior * */ 75/* * 0.9.1 - 07/15/2000 - G.Juyn * */ 76/* * - added callbacks for SAVE/SEEK processing * */ 77/* * - added variable for NEEDSECTIONWAIT breaks * */ 78/* * - added variable for freeze & reset processing * */ 79/* * 0.9.1 - 07/17/2000 - G.Juyn * */ 80/* * - added error cleanup processing * */ 81/* * - fixed support for mng_display_reset() * */ 82/* * - fixed suspension-buffering for 32K+ chunks * */ 83/* * * */ 84/* * 0.9.2 - 07/29/2000 - G.Juyn * */ 85/* * - fixed small bugs in display processing * */ 86/* * 0.9.2 - 07/31/2000 - G.Juyn * */ 87/* * - fixed wrapping of suspension parameters * */ 88/* * 0.9.2 - 08/04/2000 - G.Juyn * */ 89/* * - B111096 - fixed large-buffer read-suspension * */ 90/* * 0.9.2 - 08/05/2000 - G.Juyn * */ 91/* * - changed file-prefixes * */ 92/* * * */ 93/* * 0.9.3 - 09/07/2000 - G.Juyn * */ 94/* * - added support for new filter_types * */ 95/* * 0.9.3 - 09/10/2000 - G.Juyn * */ 96/* * - fixed DEFI behavior * */ 97/* * 0.9.3 - 10/11/2000 - G.Juyn * */ 98/* * - added support for nEED * */ 99/* * 0.9.3 - 10/16/2000 - G.Juyn * */ 100/* * - added optional support for bKGD for PNG images * */ 101/* * - raised initial maximum canvas size * */ 102/* * - added support for JDAA * */ 103/* * 0.9.3 - 10/17/2000 - G.Juyn * */ 104/* * - added callback to process non-critical unknown chunks * */ 105/* * - fixed support for delta-images during read() / display() * */ 106/* * 0.9.3 - 10/18/2000 - G.Juyn * */ 107/* * - added closestream() processing for mng_cleanup() * */ 108/* * 0.9.3 - 10/27/2000 - G.Juyn * */ 109/* * - fixed separate read() & display() processing * */ 110/* * * */ 111/* * 0.9.4 - 11/20/2000 - G.Juyn * */ 112/* * - fixed unwanted repetition in mng_readdisplay() * */ 113/* * 0.9.4 - 11/24/2000 - G.Juyn * */ 114/* * - moved restore of object 0 to libmng_display * */ 115/* * * */ 116/* * 1.0.1 - 02/08/2001 - G.Juyn * */ 117/* * - added MEND processing callback * */ 118/* * 1.0.1 - 02/13/2001 - G.Juyn * */ 119/* * - fixed first FRAM_MODE=4 timing problem * */ 120/* * 1.0.1 - 04/21/2001 - G.Juyn * */ 121/* * - fixed bug with display_reset/display_resume (Thanks G!) * */ 122/* * 1.0.1 - 04/22/2001 - G.Juyn * */ 123/* * - fixed memory-leak (Thanks Gregg!) * */ 124/* * 1.0.1 - 04/23/2001 - G.Juyn * */ 125/* * - fixed reset_rundata to drop all objects * */ 126/* * 1.0.1 - 04/25/2001 - G.Juyn * */ 127/* * - moved mng_clear_cms to libmng_cms * */ 128/* * * */ 129/* * 1.0.2 - 06/23/2001 - G.Juyn * */ 130/* * - added optimization option for MNG-video playback * */ 131/* * - added processterm callback * */ 132/* * 1.0.2 - 06/25/2001 - G.Juyn * */ 133/* * - added option to turn off progressive refresh * */ 134/* * * */ 135/* * 1.0.5 - 07/08/2002 - G.Juyn * */ 136/* * - B578572 - removed eMNGma hack (thanks Dimitri!) * */ 137/* * 1.0.5 - 07/16/2002 - G.Juyn * */ 138/* * - B581625 - large chunks fail with suspension reads * */ 139/* * 1.0.5 - 08/19/2002 - G.Juyn * */ 140/* * - B597134 - libmng pollutes the linker namespace * */ 141/* * 1.0.5 - 09/15/2002 - G.Juyn * */ 142/* * - fixed LOOP iteration=0 special case * */ 143/* * 1.0.5 - 10/07/2002 - G.Juyn * */ 144/* * - added another fix for misplaced TERM chunk * */ 145/* * - completed support for condition=2 in TERM chunk * */ 146/* * - added beta version function & constant * */ 147/* * 1.0.5 - 10/11/2002 - G.Juyn * */ 148/* * - added mng_status_dynamic to supports function * */ 149/* * 1.0.5 - 11/04/2002 - G.Juyn * */ 150/* * - changed FRAMECOUNT/LAYERCOUNT/PLAYTIME error to warning * */ 151/* * 1.0.5 - 11/07/2002 - G.Juyn * */ 152/* * - added support to get totals after mng_read() * */ 153/* * 1.0.5 - 11/29/2002 - G.Juyn * */ 154/* * - fixed goxxxxx() support for zero values * */ 155/* * * */ 156/* * 1.0.6 - 05/25/2003 - G.R-P * */ 157/* * - added MNG_SKIPCHUNK_cHNK footprint optimizations * */ 158/* * 1.0.6 - 07/11/2003 - G.R-P * */ 159/* * - added conditionals zlib and jpeg property accessors * */ 160/* * 1.0.6 - 07/14/2003 - G.R-P * */ 161/* * - added conditionals around "mng_display_go*" and other * */ 162/* * unused functions * */ 163/* * 1.0.6 - 07/29/2003 - G.R-P * */ 164/* * - added conditionals around PAST chunk support * */ 165/* * * */ 166/* * 1.0.7 - 03/07/2004 - G. Randers-Pehrson * */ 167/* * - put gamma, cms-related declarations inside #ifdef * */ 168/* * 1.0.7 - 03/10/2004 - G.R-P * */ 169/* * - added conditionals around openstream/closestream * */ 170/* * 1.0.7 - 03/24/2004 - G.R-P * */ 171/* * - fixed zTXT -> zTXt typo * */ 172/* * * */ 173/* * 1.0.8 - 04/02/2004 - G.Juyn * */ 174/* * - added CRC existence & checking flags * */ 175/* * 1.0.8 - 04/10/2004 - G.Juyn * */ 176/* * - added data-push mechanisms for specialized decoders * */ 177/* * 1.0.8 - 07/06/2004 - G.R-P * */ 178/* * - defend against using undefined openstream function * */ 179/* * 1.0.8 - 08/02/2004 - G.Juyn * */ 180/* * - added conditional to allow easier writing of large MNG's * */ 181/* * * */ 182/* * 1.0.9 - 08/17/2004 - G.R-P * */ 183/* * - added more SKIPCHUNK conditionals * */ 184/* * 1.0.9 - 09/25/2004 - G.Juyn * */ 185/* * - replaced MNG_TWEAK_LARGE_FILES with permanent solution * */ 186/* * 1.0.9 - 10/03/2004 - G.Juyn * */ 187/* * - added function to retrieve current FRAM delay * */ 188/* * 1.0.9 - 12/20/2004 - G.Juyn * */ 189/* * - cleaned up macro-invocations (thanks to D. Airlie) * */ 190/* * * */ 191/* * 1.0.10 - 07/06/2005 - G.R-P * */ 192/* * - added more SKIPCHUNK conditionals * */ 193/* * 1.0.10 - 04/08/2007 - G.Juyn * */ 194/* * - added support for mPNG proposal * */ 195/* * 1.0.10 - 04/12/2007 - G.Juyn * */ 196/* * - added support for ANG proposal * */ 197/* * 1.0.10 - 07/06/2007 - G.R-P bugfix by Lucas Quintana * */ 198/* * * */ 199/* ************************************************************************** */ 200 201#include "libmng.h" 202#include "libmng_data.h" 203#include "libmng_error.h" 204#include "libmng_trace.h" 205#ifdef __BORLANDC__ 206#pragma hdrstop 207#endif 208#include "libmng_objects.h" 209#include "libmng_object_prc.h" 210#include "libmng_chunks.h" 211#include "libmng_memory.h" 212#include "libmng_read.h" 213#include "libmng_write.h" 214#include "libmng_display.h" 215#include "libmng_zlib.h" 216#include "libmng_jpeg.h" 217#include "libmng_cms.h" 218#include "libmng_pixels.h" 219 220#if defined(__BORLANDC__) && defined(MNG_STRICT_ANSI) 221#pragma option -A /* force ANSI-C */ 222#endif 223 224/* ************************************************************************** */ 225/* * * */ 226/* * local routines * */ 227/* * * */ 228/* ************************************************************************** */ 229 230#ifdef MNG_SUPPORT_DISPLAY 231MNG_LOCAL mng_retcode mng_drop_objects (mng_datap pData, 232 mng_bool bDropaniobj) 233{ 234 mng_objectp pObject; 235 mng_objectp pNext; 236 mng_cleanupobject fCleanup; 237 238#ifdef MNG_SUPPORT_TRACE 239 MNG_TRACE (pData, MNG_FN_DROP_OBJECTS, MNG_LC_START); 240#endif 241 242 pObject = pData->pFirstimgobj; /* get first stored image-object (if any) */ 243 244 while (pObject) /* more objects to discard ? */ 245 { 246 pNext = ((mng_object_headerp)pObject)->pNext; 247 /* call appropriate cleanup */ 248 fCleanup = ((mng_object_headerp)pObject)->fCleanup; 249 fCleanup (pData, pObject); 250 251 pObject = pNext; /* neeeext */ 252 } 253 254 pData->pFirstimgobj = MNG_NULL; /* clean this up!!! */ 255 pData->pLastimgobj = MNG_NULL; 256 257 if (bDropaniobj) /* drop animation objects ? */ 258 { 259 pObject = pData->pFirstaniobj; /* get first stored animation-object (if any) */ 260 261 while (pObject) /* more objects to discard ? */ 262 { 263 pNext = ((mng_object_headerp)pObject)->pNext; 264 /* call appropriate cleanup */ 265 fCleanup = ((mng_object_headerp)pObject)->fCleanup; 266 fCleanup (pData, pObject); 267 268 pObject = pNext; /* neeeext */ 269 } 270 271 pData->pFirstaniobj = MNG_NULL; /* clean this up!!! */ 272 pData->pLastaniobj = MNG_NULL; 273 274#ifdef MNG_SUPPORT_DYNAMICMNG 275 pObject = pData->pFirstevent; /* get first event-object (if any) */ 276 277 while (pObject) /* more objects to discard ? */ 278 { 279 pNext = ((mng_object_headerp)pObject)->pNext; 280 /* call appropriate cleanup */ 281 fCleanup = ((mng_object_headerp)pObject)->fCleanup; 282 fCleanup (pData, pObject); 283 284 pObject = pNext; /* neeeext */ 285 } 286 287 pData->pFirstevent = MNG_NULL; /* clean this up!!! */ 288 pData->pLastevent = MNG_NULL; 289#endif 290 } 291 292#ifdef MNG_INCLUDE_MPNG_PROPOSAL 293 if (pData->pMPNG) /* drop MPNG data (if any) */ 294 { 295 fCleanup = ((mng_object_headerp)pData->pMPNG)->fCleanup; 296 fCleanup (pData, pData->pMPNG); 297 pData->pMPNG = MNG_NULL; 298 } 299#endif 300 301#ifdef MNG_INCLUDE_ANG_PROPOSAL 302 if (pData->pANG) /* drop ANG data (if any) */ 303 { 304 fCleanup = ((mng_object_headerp)pData->pANG)->fCleanup; 305 fCleanup (pData, pData->pANG); 306 pData->pANG = MNG_NULL; 307 } 308#endif 309 310#ifdef MNG_SUPPORT_TRACE 311 MNG_TRACE (pData, MNG_FN_DROP_OBJECTS, MNG_LC_END); 312#endif 313 314 return MNG_NOERROR; 315} 316#endif /* MNG_SUPPORT_DISPLAY */ 317 318/* ************************************************************************** */ 319 320#ifdef MNG_SUPPORT_DISPLAY 321#ifndef MNG_SKIPCHUNK_SAVE 322MNG_LOCAL mng_retcode mng_drop_savedata (mng_datap pData) 323{ 324#ifdef MNG_SUPPORT_TRACE 325 MNG_TRACE (pData, MNG_FN_DROP_SAVEDATA, MNG_LC_START); 326#endif 327 328 if (pData->pSavedata) /* sanity check */ 329 { /* address it more directly */ 330 mng_savedatap pSave = pData->pSavedata; 331 332 if (pSave->iGlobalProfilesize) /* cleanup the profile ? */ 333 MNG_FREEX (pData, pSave->pGlobalProfile, pSave->iGlobalProfilesize); 334 /* cleanup the save structure */ 335 MNG_FREE (pData, pData->pSavedata, sizeof (mng_savedata)); 336 } 337 338#ifdef MNG_SUPPORT_TRACE 339 MNG_TRACE (pData, MNG_FN_DROP_SAVEDATA, MNG_LC_END); 340#endif 341 342 return MNG_NOERROR; 343} 344#endif 345#endif /* MNG_SUPPORT_DISPLAY */ 346 347/* ************************************************************************** */ 348 349#ifdef MNG_SUPPORT_DISPLAY 350MNG_LOCAL mng_retcode mng_reset_rundata (mng_datap pData) 351{ 352 mng_drop_invalid_objects (pData); /* drop invalidly stored objects */ 353#ifndef MNG_SKIPCHUNK_SAVE 354 mng_drop_savedata (pData); /* drop stored savedata */ 355#endif 356 mng_reset_objzero (pData); /* reset object 0 */ 357 /* drop stored objects (if any) */ 358 mng_drop_objects (pData, MNG_FALSE); 359 360 pData->bFramedone = MNG_FALSE; 361 pData->iFrameseq = 0; /* reset counters & stuff */ 362 pData->iLayerseq = 0; 363 pData->iFrametime = 0; 364 365 pData->bSkipping = MNG_FALSE; 366 367#ifdef MNG_SUPPORT_DYNAMICMNG 368 pData->bRunningevent = MNG_FALSE; 369 pData->bStopafterseek = MNG_FALSE; 370 pData->iEventx = 0; 371 pData->iEventy = 0; 372 pData->pLastmousemove = MNG_NULL; 373#endif 374 375 pData->iRequestframe = 0; 376 pData->iRequestlayer = 0; 377 pData->iRequesttime = 0; 378 pData->bSearching = MNG_FALSE; 379 380 pData->iRuntime = 0; 381 pData->iSynctime = 0; 382 pData->iStarttime = 0; 383 pData->iEndtime = 0; 384 pData->bRunning = MNG_FALSE; 385 pData->bTimerset = MNG_FALSE; 386 pData->iBreakpoint = 0; 387 pData->bSectionwait = MNG_FALSE; 388 pData->bFreezing = MNG_FALSE; 389 pData->bResetting = MNG_FALSE; 390 pData->bNeedrefresh = MNG_FALSE; 391 pData->bOnlyfirstframe = MNG_FALSE; 392 pData->iFramesafterTERM = 0; 393 394 pData->iIterations = 0; 395 /* start of animation objects! */ 396 pData->pCurraniobj = MNG_NULL; 397 398 pData->iUpdateleft = 0; /* reset region */ 399 pData->iUpdateright = 0; 400 pData->iUpdatetop = 0; 401 pData->iUpdatebottom = 0; 402 pData->iPLTEcount = 0; /* reset PLTE data */ 403 404#ifndef MNG_SKIPCHUNK_DEFI 405 pData->iDEFIobjectid = 0; /* reset DEFI data */ 406 pData->bDEFIhasdonotshow = MNG_FALSE; 407 pData->iDEFIdonotshow = 0; 408 pData->bDEFIhasconcrete = MNG_FALSE; 409 pData->iDEFIconcrete = 0; 410 pData->bDEFIhasloca = MNG_FALSE; 411 pData->iDEFIlocax = 0; 412 pData->iDEFIlocay = 0; 413 pData->bDEFIhasclip = MNG_FALSE; 414 pData->iDEFIclipl = 0; 415 pData->iDEFIclipr = 0; 416 pData->iDEFIclipt = 0; 417 pData->iDEFIclipb = 0; 418#endif 419 420#ifndef MNG_SKIPCHUNK_BACK 421 pData->iBACKred = 0; /* reset BACK data */ 422 pData->iBACKgreen = 0; 423 pData->iBACKblue = 0; 424 pData->iBACKmandatory = 0; 425 pData->iBACKimageid = 0; 426 pData->iBACKtile = 0; 427#endif 428 429#ifndef MNG_SKIPCHUNK_FRAM 430 pData->iFRAMmode = 1; /* default global FRAM variables */ 431 pData->iFRAMdelay = 1; 432 pData->iFRAMtimeout = 0x7fffffffl; 433 pData->bFRAMclipping = MNG_FALSE; 434 pData->iFRAMclipl = 0; 435 pData->iFRAMclipr = 0; 436 pData->iFRAMclipt = 0; 437 pData->iFRAMclipb = 0; 438 439 pData->iFramemode = 1; /* again for the current frame */ 440 pData->iFramedelay = 1; 441 pData->iFrametimeout = 0x7fffffffl; 442 pData->bFrameclipping = MNG_FALSE; 443 pData->iFrameclipl = 0; 444 pData->iFrameclipr = 0; 445 pData->iFrameclipt = 0; 446 pData->iFrameclipb = 0; 447 448 pData->iNextdelay = 1; 449#endif 450 451#ifndef MNG_SKIPCHUNK_SHOW 452 pData->iSHOWmode = 0; /* reset SHOW data */ 453 pData->iSHOWfromid = 0; 454 pData->iSHOWtoid = 0; 455 pData->iSHOWnextid = 0; 456 pData->iSHOWskip = 0; 457#endif 458 459 pData->iGlobalPLTEcount = 0; /* reset global PLTE data */ 460 461 pData->iGlobalTRNSrawlen = 0; /* reset global tRNS data */ 462 463 pData->iGlobalGamma = 0; /* reset global gAMA data */ 464 465#ifndef MNG_SKIPCHUNK_cHRM 466 pData->iGlobalWhitepointx = 0; /* reset global cHRM data */ 467 pData->iGlobalWhitepointy = 0; 468 pData->iGlobalPrimaryredx = 0; 469 pData->iGlobalPrimaryredy = 0; 470 pData->iGlobalPrimarygreenx = 0; 471 pData->iGlobalPrimarygreeny = 0; 472 pData->iGlobalPrimarybluex = 0; 473 pData->iGlobalPrimarybluey = 0; 474#endif 475 476#ifndef MNG_SKIPCHUNK_sRGB 477 pData->iGlobalRendintent = 0; /* reset global sRGB data */ 478#endif 479 480#ifndef MNG_SKIPCHUNK_iCCP 481 if (pData->iGlobalProfilesize) /* drop global profile (if any) */ 482 MNG_FREE (pData, pData->pGlobalProfile, pData->iGlobalProfilesize); 483 484 pData->iGlobalProfilesize = 0; 485#endif 486 487#ifndef MNG_SKIPCHUNK_bKGD 488 pData->iGlobalBKGDred = 0; /* reset global bKGD data */ 489 pData->iGlobalBKGDgreen = 0; 490 pData->iGlobalBKGDblue = 0; 491#endif 492#ifndef MNG_NO_DELTA_PNG 493 /* reset delta-image */ 494 pData->pDeltaImage = MNG_NULL; 495 pData->iDeltaImagetype = 0; 496 pData->iDeltatype = 0; 497 pData->iDeltaBlockwidth = 0; 498 pData->iDeltaBlockheight = 0; 499 pData->iDeltaBlockx = 0; 500 pData->iDeltaBlocky = 0; 501 pData->bDeltaimmediate = MNG_FALSE; 502 503 pData->fDeltagetrow = MNG_NULL; 504 pData->fDeltaaddrow = MNG_NULL; 505 pData->fDeltareplacerow = MNG_NULL; 506 pData->fDeltaputrow = MNG_NULL; 507 508 pData->fPromoterow = MNG_NULL; 509 pData->fPromBitdepth = MNG_NULL; 510 pData->pPromBuf = MNG_NULL; 511 pData->iPromColortype = 0; 512 pData->iPromBitdepth = 0; 513 pData->iPromFilltype = 0; 514 pData->iPromWidth = 0; 515 pData->pPromSrc = MNG_NULL; 516 pData->pPromDst = MNG_NULL; 517#endif 518 519#ifndef MNG_SKIPCHUNK_MAGN 520 pData->iMAGNfromid = 0; 521 pData->iMAGNtoid = 0; 522#endif 523 524#ifndef MNG_SKIPCHUNK_PAST 525 pData->iPastx = 0; 526 pData->iPasty = 0; 527#endif 528 529 pData->pLastseek = MNG_NULL; 530 531 return MNG_NOERROR; 532} 533#endif /* MNG_SUPPORT_DISPLAY */ 534 535/* ************************************************************************** */ 536 537MNG_LOCAL void cleanup_errors (mng_datap pData) 538{ 539 pData->iErrorcode = MNG_NOERROR; 540 pData->iSeverity = 0; 541 pData->iErrorx1 = 0; 542 pData->iErrorx2 = 0; 543 pData->zErrortext = MNG_NULL; 544 545 return; 546} 547 548/* ************************************************************************** */ 549 550#ifdef MNG_SUPPORT_READ 551MNG_LOCAL mng_retcode make_pushbuffer (mng_datap pData, 552 mng_ptr pPushdata, 553 mng_size_t iLength, 554 mng_bool bTakeownership, 555 mng_pushdatap * pPush) 556{ 557 mng_pushdatap pTemp; 558 559 MNG_ALLOC (pData, pTemp, sizeof(mng_pushdata)); 560 561 pTemp->pNext = MNG_NULL; 562 563 if (bTakeownership) /* are we going to own the buffer? */ 564 { /* then just copy the pointer */ 565 pTemp->pData = (mng_uint8p)pPushdata; 566 } 567 else 568 { /* otherwise create new buffer */ 569 MNG_ALLOCX (pData, pTemp->pData, iLength); 570 if (!pTemp->pData) /* succeeded? */ 571 { 572 MNG_FREEX (pData, pTemp, sizeof(mng_pushdata)); 573 MNG_ERROR (pData, MNG_OUTOFMEMORY); 574 } 575 /* and copy the bytes across */ 576 MNG_COPY (pTemp->pData, pPushdata, iLength); 577 } 578 579 pTemp->iLength = iLength; 580 pTemp->bOwned = bTakeownership; 581 pTemp->pDatanext = pTemp->pData; 582 pTemp->iRemaining = iLength; 583 584 *pPush = pTemp; /* return it */ 585 586 return MNG_NOERROR; /* and all's well */ 587} 588#endif 589 590#ifdef MNG_VERSION_QUERY_SUPPORT 591/* ************************************************************************** */ 592/* * * */ 593/* * Versioning control * */ 594/* * * */ 595/* ************************************************************************** */ 596 597mng_pchar MNG_DECL mng_version_text (void) 598{ 599 return MNG_VERSION_TEXT; 600} 601 602/* ************************************************************************** */ 603 604mng_uint8 MNG_DECL mng_version_so (void) 605{ 606 return MNG_VERSION_SO; 607} 608 609/* ************************************************************************** */ 610 611mng_uint8 MNG_DECL mng_version_dll (void) 612{ 613 return MNG_VERSION_DLL; 614} 615 616/* ************************************************************************** */ 617 618mng_uint8 MNG_DECL mng_version_major (void) 619{ 620 return MNG_VERSION_MAJOR; 621} 622 623/* ************************************************************************** */ 624 625mng_uint8 MNG_DECL mng_version_minor (void) 626{ 627 return MNG_VERSION_MINOR; 628} 629 630/* ************************************************************************** */ 631 632mng_uint8 MNG_DECL mng_version_release (void) 633{ 634 return MNG_VERSION_RELEASE; 635} 636 637/* ************************************************************************** */ 638 639mng_bool MNG_DECL mng_version_beta (void) 640{ 641 return MNG_VERSION_BETA; 642} 643#endif 644 645/* ************************************************************************** */ 646/* * * */ 647/* * 'supports' function * */ 648/* * * */ 649/* ************************************************************************** */ 650 651#ifdef MNG_SUPPORT_FUNCQUERY 652typedef struct { 653 mng_pchar zFunction; 654 mng_uint8 iMajor; /* Major == 0 means not implemented ! */ 655 mng_uint8 iMinor; 656 mng_uint8 iRelease; 657 } mng_func_entry; 658typedef mng_func_entry const * mng_func_entryp; 659 660MNG_LOCAL mng_func_entry const func_table [] = 661 { /* keep it alphabetically sorted !!!!! */ 662 {"mng_cleanup", 1, 0, 0}, 663 {"mng_copy_chunk", 1, 0, 5}, 664 {"mng_create", 1, 0, 0}, 665 {"mng_display", 1, 0, 0}, 666 {"mng_display_freeze", 1, 0, 0}, 667#ifndef MNG_NO_DISPLAY_GO_SUPPORTED 668 {"mng_display_goframe", 1, 0, 0}, 669 {"mng_display_golayer", 1, 0, 0}, 670 {"mng_display_gotime", 1, 0, 0}, 671#endif 672 {"mng_display_reset", 1, 0, 0}, 673 {"mng_display_resume", 1, 0, 0}, 674 {"mng_get_alphabitdepth", 1, 0, 0}, 675 {"mng_get_alphacompression", 1, 0, 0}, 676 {"mng_get_alphadepth", 1, 0, 0}, 677 {"mng_get_alphafilter", 1, 0, 0}, 678 {"mng_get_alphainterlace", 1, 0, 0}, 679 {"mng_get_bgcolor", 1, 0, 0}, 680 {"mng_get_bitdepth", 1, 0, 0}, 681 {"mng_get_bkgdstyle", 1, 0, 0}, 682 {"mng_get_cacheplayback", 1, 0, 2}, 683 {"mng_get_canvasstyle", 1, 0, 0}, 684 {"mng_get_colortype", 1, 0, 0}, 685 {"mng_get_compression", 1, 0, 0}, 686#ifndef MNG_NO_CURRENT_INFO 687 {"mng_get_currentframe", 1, 0, 0}, 688 {"mng_get_currentlayer", 1, 0, 0}, 689 {"mng_get_currentplaytime", 1, 0, 0}, 690#endif 691 {"mng_get_currframdelay", 1, 0, 9}, 692#ifndef MNG_NO_DFLT_INFO 693 {"mng_get_dfltimggamma", 1, 0, 0}, 694 {"mng_get_dfltimggammaint", 1, 0, 0}, 695#endif 696 {"mng_get_displaygamma", 1, 0, 0}, 697 {"mng_get_displaygammaint", 1, 0, 0}, 698 {"mng_get_doprogressive", 1, 0, 2}, 699 {"mng_get_filter", 1, 0, 0}, 700 {"mng_get_framecount", 1, 0, 0}, 701 {"mng_get_imageheight", 1, 0, 0}, 702 {"mng_get_imagelevel", 1, 0, 0}, 703 {"mng_get_imagetype", 1, 0, 0}, 704 {"mng_get_imagewidth", 1, 0, 0}, 705 {"mng_get_interlace", 1, 0, 0}, 706#ifdef MNG_ACCESS_JPEG 707 {"mng_get_jpeg_dctmethod", 1, 0, 0}, 708 {"mng_get_jpeg_maxjdat", 1, 0, 0}, 709 {"mng_get_jpeg_optimized", 1, 0, 0}, 710 {"mng_get_jpeg_progressive", 1, 0, 0}, 711 {"mng_get_jpeg_quality", 1, 0, 0}, 712 {"mng_get_jpeg_smoothing", 1, 0, 0}, 713#endif 714 {"mng_get_lastbackchunk", 1, 0, 3}, 715 {"mng_get_lastseekname", 1, 0, 5}, 716 {"mng_get_layercount", 1, 0, 0}, 717#ifndef MNG_SKIP_MAXCANVAS 718 {"mng_get_maxcanvasheight", 1, 0, 0}, 719 {"mng_get_maxcanvaswidth", 1, 0, 0}, 720#endif 721 {"mng_get_playtime", 1, 0, 0}, 722 {"mng_get_refreshpass", 1, 0, 0}, 723 {"mng_get_runtime", 1, 0, 0}, 724 {"mng_get_sectionbreaks", 1, 0, 0}, 725 {"mng_get_sigtype", 1, 0, 0}, 726 {"mng_get_simplicity", 1, 0, 0}, 727 {"mng_get_speed", 1, 0, 0}, 728 {"mng_get_srgb", 1, 0, 0}, 729 {"mng_get_starttime", 1, 0, 0}, 730 {"mng_get_storechunks", 1, 0, 0}, 731 {"mng_get_suspensionmode", 1, 0, 0}, 732 {"mng_get_ticks", 1, 0, 0}, 733#ifndef MNG_NO_CURRENT_INFO 734 {"mng_get_totalframes", 1, 0, 5}, 735 {"mng_get_totallayers", 1, 0, 5}, 736 {"mng_get_totalplaytime", 1, 0, 5}, 737#endif 738 {"mng_get_usebkgd", 1, 0, 0}, 739 {"mng_get_userdata", 1, 0, 0}, 740#if defined(MNG_FULL_CMS) || defined(MNG_GAMMA_ONLY) || defined(MNG_APP_CMS) 741 {"mng_get_viewgamma", 1, 0, 0}, 742 {"mng_get_viewgammaint", 1, 0, 0}, 743#endif 744#ifdef MNG_ACCESS_ZLIB 745 {"mng_get_zlib_level", 1, 0, 0}, 746 {"mng_get_zlib_maxidat", 1, 0, 0}, 747 {"mng_get_zlib_memlevel", 1, 0, 0}, 748 {"mng_get_zlib_method", 1, 0, 0}, 749 {"mng_get_zlib_strategy", 1, 0, 0}, 750 {"mng_get_zlib_windowbits", 1, 0, 0}, 751#endif 752#ifndef MNG_NO_OPEN_CLOSE_STREAM 753 {"mng_getcb_closestream", 1, 0, 0}, 754#endif 755 {"mng_getcb_errorproc", 1, 0, 0}, 756 {"mng_getcb_getalphaline", 1, 0, 0}, 757 {"mng_getcb_getbkgdline", 1, 0, 0}, 758 {"mng_getcb_getcanvasline", 1, 0, 0}, 759 {"mng_getcb_gettickcount", 1, 0, 0}, 760 {"mng_getcb_memalloc", 1, 0, 0}, 761 {"mng_getcb_memfree", 1, 0, 0}, 762#ifndef MNG_NO_OPEN_CLOSE_STREAM 763 {"mng_getcb_openstream", 1, 0, 0}, 764#endif 765 {"mng_getcb_processarow", 1, 0, 0}, 766 {"mng_getcb_processchroma", 1, 0, 0}, 767 {"mng_getcb_processgamma", 1, 0, 0}, 768 {"mng_getcb_processheader", 1, 0, 0}, 769 {"mng_getcb_processiccp", 1, 0, 0}, 770 {"mng_getcb_processmend", 1, 0, 1}, 771 {"mng_getcb_processneed", 1, 0, 0}, 772 {"mng_getcb_processsave", 1, 0, 0}, 773 {"mng_getcb_processseek", 1, 0, 0}, 774 {"mng_getcb_processsrgb", 1, 0, 0}, 775 {"mng_getcb_processterm", 1, 0, 2}, 776 {"mng_getcb_processtext", 1, 0, 0}, 777 {"mng_getcb_processunknown", 1, 0, 0}, 778 {"mng_getcb_readdata", 1, 0, 0}, 779 {"mng_getcb_refresh", 1, 0, 0}, 780 {"mng_getcb_releasedata", 1, 0, 8}, 781 {"mng_getcb_settimer", 1, 0, 0}, 782 {"mng_getcb_traceproc", 1, 0, 0}, 783 {"mng_getcb_writedata", 1, 0, 0}, 784 {"mng_getchunk_back", 1, 0, 0}, 785 {"mng_getchunk_basi", 1, 0, 0}, 786#ifndef MNG_SKIPCHUNK_bKGD 787 {"mng_getchunk_bkgd", 1, 0, 0}, 788#endif 789#ifndef MNG_SKIPCHUNK_cHRM 790 {"mng_getchunk_chrm", 1, 0, 0}, 791#endif 792 {"mng_getchunk_clip", 1, 0, 0}, 793 {"mng_getchunk_clon", 1, 0, 0}, 794#ifndef MNG_NO_DELTA_PNG 795#ifndef MNG_SKIPCHUNK_dBYK 796 {"mng_getchunk_dbyk", 1, 0, 0}, 797#endif 798#endif 799 {"mng_getchunk_defi", 1, 0, 0}, 800#ifndef MNG_NO_DELTA_PNG 801 {"mng_getchunk_dhdr", 1, 0, 0}, 802#endif 803 {"mng_getchunk_disc", 1, 0, 0}, 804#ifndef MNG_NO_DELTA_PNG 805 {"mng_getchunk_drop", 1, 0, 0}, 806#endif 807 {"mng_getchunk_endl", 1, 0, 0}, 808#ifdef MNG_INCLUDE_MPNG_PROPOSAL 809 {"mng_getchunk_mpng", 1, 0, 10}, 810 {"mng_getchunk_mpng_frame", 1, 0, 10}, 811#endif 812#ifndef MNG_SKIPCHUNK_evNT 813 {"mng_getchunk_evnt", 1, 0, 5}, 814 {"mng_getchunk_evnt_entry", 1, 0, 5}, 815#endif 816#ifndef MNG_SKIPCHUNK_eXPI 817 {"mng_getchunk_expi", 1, 0, 0}, 818#endif 819#ifndef MNG_SKIPCHUNK_fPRI 820 {"mng_getchunk_fpri", 1, 0, 0}, 821#endif 822 {"mng_getchunk_fram", 1, 0, 0}, 823 {"mng_getchunk_gama", 1, 0, 0}, 824#ifndef MNG_SKIPCHUNK_hIST 825 {"mng_getchunk_hist", 1, 0, 0}, 826#endif 827#ifndef MNG_SKIPCHUNK_iCCP 828 {"mng_getchunk_iccp", 1, 0, 0}, 829#endif 830 {"mng_getchunk_idat", 1, 0, 0}, 831 {"mng_getchunk_iend", 1, 0, 0}, 832 {"mng_getchunk_ihdr", 1, 0, 0}, 833#ifndef MNG_NO_DELTA_PNG 834#ifdef MNG_INCLUDE_JNG 835 {"mng_getchunk_ijng", 1, 0, 0}, 836#endif 837 {"mng_getchunk_ipng", 1, 0, 0}, 838#endif 839#ifndef MNG_SKIPCHUNK_iTXt 840 {"mng_getchunk_itxt", 1, 0, 0}, 841#endif 842#ifdef MNG_INCLUDE_JNG 843 {"mng_getchunk_jdaa", 1, 0, 0}, 844 {"mng_getchunk_jdat", 1, 0, 0}, 845 {"mng_getchunk_jhdr", 1, 0, 0}, 846 {"mng_getchunk_jsep", 1, 0, 0}, 847#endif 848 {"mng_getchunk_loop", 1, 0, 0}, 849#ifndef MNG_SKIPCHUNK_MAGN 850 {"mng_getchunk_magn", 1, 0, 0}, 851#endif 852 {"mng_getchunk_mend", 1, 0, 0}, 853 {"mng_getchunk_mhdr", 1, 0, 0}, 854 {"mng_getchunk_move", 1, 0, 0}, 855#ifndef MNG_SKIPCHUNK_nEED 856 {"mng_getchunk_need", 1, 0, 0}, 857#endif 858#ifndef MNG_SKIPCHUNK_ORDR 859#ifndef MNG_NO_DELTA_PNG 860 {"mng_getchunk_ordr", 1, 0, 0}, 861 {"mng_getchunk_ordr_entry", 1, 0, 0}, 862#endif 863#endif 864#ifndef MNG_SKIPCHUNK_PAST 865 {"mng_getchunk_past", 1, 0, 0}, 866 {"mng_getchunk_past_src", 1, 0, 0}, 867#endif 868#ifndef MNG_SKIPCHUNK_pHYg 869 {"mng_getchunk_phyg", 1, 0, 0}, 870#endif 871#ifndef MNG_SKIPCHUNK_pHYs 872 {"mng_getchunk_phys", 1, 0, 0}, 873#endif 874#ifndef MNG_NO_DELTA_PNG 875 {"mng_getchunk_plte", 1, 0, 0}, 876 {"mng_getchunk_pplt", 1, 0, 0}, 877 {"mng_getchunk_pplt_entry", 1, 0, 0}, 878 {"mng_getchunk_prom", 1, 0, 0}, 879#endif 880#ifndef MNG_SKIPCHUNK_SAVE 881 {"mng_getchunk_save", 1, 0, 0}, 882 {"mng_getchunk_save_entry", 1, 0, 0}, 883#endif 884#ifndef MNG_SKIPCHUNK_sBIT 885 {"mng_getchunk_sbit", 1, 0, 0}, 886#endif 887#ifndef MNG_SKIPCHUNK_SEEK 888 {"mng_getchunk_seek", 1, 0, 0}, 889#endif 890 {"mng_getchunk_show", 1, 0, 0}, 891#ifndef MNG_SKIPCHUNK_sPLT 892 {"mng_getchunk_splt", 1, 0, 0}, 893#endif 894#ifndef MNG_SKIPCHUNK_sRGB 895 {"mng_getchunk_srgb", 1, 0, 0}, 896#endif 897 {"mng_getchunk_term", 1, 0, 0}, 898#ifndef MNG_SKIPCHUNK_tEXt 899 {"mng_getchunk_text", 1, 0, 0}, 900#endif 901#ifndef MNG_SKIPCHUNK_tIME 902 {"mng_getchunk_time", 1, 0, 0}, 903#endif 904 {"mng_getchunk_trns", 1, 0, 0}, 905 {"mng_getchunk_unkown", 1, 0, 0}, 906#ifndef MNG_SKIPCHUNK_zTXt 907 {"mng_getchunk_ztxt", 1, 0, 0}, 908#endif 909 {"mng_getimgdata_chunk", 0, 0, 0}, 910 {"mng_getimgdata_chunkseq", 0, 0, 0}, 911 {"mng_getimgdata_seq", 0, 0, 0}, 912 {"mng_getlasterror", 1, 0, 0}, 913 {"mng_initialize", 1, 0, 0}, 914 {"mng_iterate_chunks", 1, 0, 0}, 915 {"mng_putchunk_back", 1, 0, 0}, 916#ifndef MNG_SKIPCHUNK_BASI 917 {"mng_putchunk_basi", 1, 0, 0}, 918#endif 919#ifndef MNG_SKIPCHUNK_bKGD 920 {"mng_putchunk_bkgd", 1, 0, 0}, 921#endif 922#ifndef MNG_SKIPCHUNK_cHRM 923 {"mng_putchunk_chrm", 1, 0, 0}, 924#endif 925 {"mng_putchunk_clip", 1, 0, 0}, 926 {"mng_putchunk_clon", 1, 0, 0}, 927#ifndef MNG_NO_DELTA_PNG 928#ifndef MNG_SKIPCHUNK_DBYK 929 {"mng_putchunk_dbyk", 1, 0, 0}, 930#endif 931#endif 932 {"mng_putchunk_defi", 1, 0, 0}, 933#ifndef MNG_NO_DELTA_PNG 934 {"mng_putchunk_dhdr", 1, 0, 0}, 935#endif 936 {"mng_putchunk_disc", 1, 0, 0}, 937#ifndef MNG_NO_DELTA_PNG 938 {"mng_putchunk_drop", 1, 0, 0}, 939#endif 940 {"mng_putchunk_endl", 1, 0, 0}, 941#ifdef MNG_INCLUDE_MPNG_PROPOSAL 942 {"mng_putchunk_mpng", 1, 0, 10}, 943 {"mng_putchunk_mpng_frame", 1, 0, 10}, 944#endif 945#ifndef MNG_SKIPCHUNK_evNT 946 {"mng_putchunk_evnt", 1, 0, 5}, 947 {"mng_putchunk_evnt_entry", 1, 0, 5}, 948#endif 949#ifndef MNG_SKIPCHUNK_eXPI 950 {"mng_putchunk_expi", 1, 0, 0}, 951#endif 952#ifndef MNG_SKIPCHUNK_fPRI 953 {"mng_putchunk_fpri", 1, 0, 0}, 954#endif 955#ifndef MNG_SKIPCHUNK_FRAM 956 {"mng_putchunk_fram", 1, 0, 0}, 957#endif 958 {"mng_putchunk_gama", 1, 0, 0}, 959#ifndef MNG_SKIPCHUNK_hIST 960 {"mng_putchunk_hist", 1, 0, 0}, 961#endif 962#ifndef MNG_SKIPCHUNK_iCCP 963 {"mng_putchunk_iccp", 1, 0, 0}, 964#endif 965 {"mng_putchunk_idat", 1, 0, 0}, 966 {"mng_putchunk_iend", 1, 0, 0}, 967 {"mng_putchunk_ihdr", 1, 0, 0}, 968#ifndef MNG_NO_DELTA_PNG 969#ifdef MNG_INCLUDE_JNG 970 {"mng_putchunk_ijng", 1, 0, 0}, 971#endif 972 {"mng_putchunk_ipng", 1, 0, 0}, 973#endif 974#ifndef MNG_SKIPCHUNK_iTXt 975 {"mng_putchunk_itxt", 1, 0, 0}, 976#endif 977#ifdef MNG_INCLUDE_JNG 978 {"mng_putchunk_jdaa", 1, 0, 0}, 979 {"mng_putchunk_jdat", 1, 0, 0}, 980 {"mng_putchunk_jhdr", 1, 0, 0}, 981 {"mng_putchunk_jsep", 1, 0, 0}, 982#endif 983 {"mng_putchunk_loop", 1, 0, 0}, 984#ifndef MNG_SKIPCHUNK_MAGN 985 {"mng_putchunk_magn", 1, 0, 0}, 986#endif 987 {"mng_putchunk_mend", 1, 0, 0}, 988 {"mng_putchunk_mhdr", 1, 0, 0}, 989 {"mng_putchunk_move", 1, 0, 0}, 990#ifndef MNG_SKIPCHUNK_nEED 991 {"mng_putchunk_need", 1, 0, 0}, 992#endif 993#ifndef MNG_NO_DELTA_PNG 994#ifndef MNG_SKIPCHUNK_ORDR 995 {"mng_putchunk_ordr", 1, 0, 0}, 996 {"mng_putchunk_ordr_entry", 1, 0, 0}, 997#endif 998#endif 999#ifndef MNG_SKIPCHUNK_PAST 1000 {"mng_putchunk_past", 1, 0, 0}, 1001 {"mng_putchunk_past_src", 1, 0, 0}, 1002#endif 1003#ifndef MNG_SKIPCHUNK_pHYg 1004 {"mng_putchunk_phyg", 1, 0, 0}, 1005#endif 1006#ifndef MNG_SKIPCHUNK_pHYs 1007 {"mng_putchunk_phys", 1, 0, 0}, 1008#endif 1009#ifndef MNG_NO_DELTA_PNG 1010 {"mng_putchunk_plte", 1, 0, 0}, 1011 {"mng_putchunk_pplt", 1, 0, 0}, 1012 {"mng_putchunk_pplt_entry", 1, 0, 0}, 1013 {"mng_putchunk_prom", 1, 0, 0}, 1014#endif 1015#ifndef MNG_SKIPCHUNK_SAVE 1016 {"mng_putchunk_save", 1, 0, 0}, 1017 {"mng_putchunk_save_entry", 1, 0, 0}, 1018#endif 1019#ifndef MNG_SKIPCHUNK_sBIT 1020 {"mng_putchunk_sbit", 1, 0, 0}, 1021#endif 1022#ifndef MNG_SKIPCHUNK_SEEK 1023 {"mng_putchunk_seek", 1, 0, 0}, 1024#endif 1025 {"mng_putchunk_show", 1, 0, 0}, 1026#ifndef MNG_SKIPCHUNK_sPLT 1027 {"mng_putchunk_splt", 1, 0, 0}, 1028#endif 1029#ifndef MNG_SKIPCHUNK_sRGB 1030 {"mng_putchunk_srgb", 1, 0, 0}, 1031#endif 1032 {"mng_putchunk_term", 1, 0, 0}, 1033#ifndef MNG_SKIPCHUNK_tEXt 1034 {"mng_putchunk_text", 1, 0, 0}, 1035#endif 1036#ifndef MNG_SKIPCHUNK_tIME 1037 {"mng_putchunk_time", 1, 0, 0}, 1038#endif 1039 {"mng_putchunk_trns", 1, 0, 0}, 1040 {"mng_putchunk_unkown", 1, 0, 0}, 1041#ifndef MNG_SKIPCHUNK_zTXt 1042 {"mng_putchunk_ztxt", 1, 0, 0}, 1043#endif 1044 {"mng_putimgdata_ihdr", 0, 0, 0}, 1045 {"mng_putimgdata_jhdr", 0, 0, 0}, 1046 {"mng_reset", 1, 0, 0}, 1047 {"mng_read", 1, 0, 0}, 1048 {"mng_read_pushchunk", 1, 0, 8}, 1049 {"mng_read_pushdata", 1, 0, 8}, 1050 {"mng_read_pushsig", 1, 0, 8}, 1051 {"mng_read_resume", 1, 0, 0}, 1052 {"mng_readdisplay", 1, 0, 0}, 1053 {"mng_set_bgcolor", 1, 0, 0}, 1054 {"mng_set_bkgdstyle", 1, 0, 0}, 1055 {"mng_set_cacheplayback", 1, 0, 2}, 1056 {"mng_set_canvasstyle", 1, 0, 0}, 1057 {"mng_set_dfltimggamma", 1, 0, 0}, 1058#ifndef MNG_NO_DFLT_INFO 1059 {"mng_set_dfltimggammaint", 1, 0, 0}, 1060#endif 1061 {"mng_set_displaygamma", 1, 0, 0}, 1062 {"mng_set_displaygammaint", 1, 0, 0}, 1063 {"mng_set_doprogressive", 1, 0, 2}, 1064#ifdef MNG_ACCESS_JPEG 1065 {"mng_set_jpeg_dctmethod", 1, 0, 0}, 1066 {"mng_set_jpeg_maxjdat", 1, 0, 0}, 1067 {"mng_set_jpeg_optimized", 1, 0, 0}, 1068 {"mng_set_jpeg_progressive", 1, 0, 0}, 1069 {"mng_set_jpeg_quality", 1, 0, 0}, 1070 {"mng_set_jpeg_smoothing", 1, 0, 0}, 1071#endif 1072#ifndef MNG_SKIP_MAXCANVAS 1073 {"mng_set_maxcanvasheight", 1, 0, 0}, 1074 {"mng_set_maxcanvassize", 1, 0, 0}, 1075 {"mng_set_maxcanvaswidth", 1, 0, 0}, 1076#endif 1077 {"mng_set_outputprofile", 1, 0, 0}, 1078 {"mng_set_outputprofile2", 1, 0, 0}, 1079 {"mng_set_outputsrgb", 1, 0, 1}, 1080 {"mng_set_sectionbreaks", 1, 0, 0}, 1081 {"mng_set_speed", 1, 0, 0}, 1082 {"mng_set_srgb", 1, 0, 0}, 1083 {"mng_set_srgbimplicit", 1, 0, 1}, 1084 {"mng_set_srgbprofile", 1, 0, 0}, 1085 {"mng_set_srgbprofile2", 1, 0, 0}, 1086 {"mng_set_storechunks", 1, 0, 0}, 1087 {"mng_set_suspensionmode", 1, 0, 0}, 1088 {"mng_set_usebkgd", 1, 0, 0}, 1089 {"mng_set_userdata", 1, 0, 0}, 1090#if defined(MNG_FULL_CMS) || defined(MNG_GAMMA_ONLY) || defined(MNG_APP_CMS) 1091 {"mng_set_viewgamma", 1, 0, 0}, 1092 {"mng_set_viewgammaint", 1, 0, 0}, 1093#endif 1094#ifdef MNG_ACCESS_ZLIB 1095 {"mng_set_zlib_level", 1, 0, 0}, 1096 {"mng_set_zlib_maxidat", 1, 0, 0}, 1097 {"mng_set_zlib_memlevel", 1, 0, 0}, 1098 {"mng_set_zlib_method", 1, 0, 0}, 1099 {"mng_set_zlib_strategy", 1, 0, 0}, 1100 {"mng_set_zlib_windowbits", 1, 0, 0}, 1101#endif 1102#ifndef MNG_NO_OPEN_CLOSE_STREAM 1103 {"mng_setcb_closestream", 1, 0, 0}, 1104#endif 1105 {"mng_setcb_errorproc", 1, 0, 0}, 1106 {"mng_setcb_getalphaline", 1, 0, 0}, 1107 {"mng_setcb_getbkgdline", 1, 0, 0}, 1108 {"mng_setcb_getcanvasline", 1, 0, 0}, 1109 {"mng_setcb_gettickcount", 1, 0, 0}, 1110 {"mng_setcb_memalloc", 1, 0, 0}, 1111 {"mng_setcb_memfree", 1, 0, 0}, 1112#ifndef MNG_NO_OPEN_CLOSE_STREAM 1113 {"mng_setcb_openstream", 1, 0, 0}, 1114#endif 1115 {"mng_setcb_processarow", 1, 0, 0}, 1116 {"mng_setcb_processchroma", 1, 0, 0}, 1117 {"mng_setcb_processgamma", 1, 0, 0}, 1118 {"mng_setcb_processheader", 1, 0, 0}, 1119 {"mng_setcb_processiccp", 1, 0, 0}, 1120 {"mng_setcb_processmend", 1, 0, 1}, 1121 {"mng_setcb_processneed", 1, 0, 0}, 1122 {"mng_setcb_processsave", 1, 0, 0}, 1123 {"mng_setcb_processseek", 1, 0, 0}, 1124 {"mng_setcb_processsrgb", 1, 0, 0}, 1125 {"mng_setcb_processterm", 1, 0, 2}, 1126 {"mng_setcb_processtext", 1, 0, 0}, 1127 {"mng_setcb_processunknown", 1, 0, 0}, 1128 {"mng_setcb_readdata", 1, 0, 0}, 1129 {"mng_setcb_refresh", 1, 0, 0}, 1130 {"mng_setcb_releasedata", 1, 0, 8}, 1131 {"mng_setcb_settimer", 1, 0, 0}, 1132 {"mng_setcb_traceproc", 1, 0, 0}, 1133 {"mng_setcb_writedata", 1, 0, 0}, 1134 {"mng_status_creating", 1, 0, 0}, 1135 {"mng_status_displaying", 1, 0, 0}, 1136 {"mng_status_dynamic", 1, 0, 5}, 1137 {"mng_status_error", 1, 0, 0}, 1138 {"mng_status_reading", 1, 0, 0}, 1139 {"mng_status_running", 1, 0, 0}, 1140 {"mng_status_runningevent", 1, 0, 5}, 1141 {"mng_status_suspendbreak", 1, 0, 0}, 1142 {"mng_status_timerbreak", 1, 0, 0}, 1143 {"mng_status_writing", 1, 0, 0}, 1144 {"mng_supports_func", 1, 0, 5}, 1145 {"mng_trapevent", 1, 0, 5}, 1146 {"mng_updatemngheader", 1, 0, 0}, 1147 {"mng_updatemngsimplicity", 1, 0, 0}, 1148 {"mng_version_beta", 1, 0, 5}, 1149 {"mng_version_dll", 1, 0, 0}, 1150 {"mng_version_major", 1, 0, 0}, 1151 {"mng_version_minor", 1, 0, 0}, 1152 {"mng_version_release", 1, 0, 0}, 1153 {"mng_version_so", 1, 0, 0}, 1154 {"mng_version_text", 1, 0, 0}, 1155 {"mng_write", 1, 0, 0}, 1156 }; 1157 1158mng_bool MNG_DECL mng_supports_func (mng_pchar zFunction, 1159 mng_uint8* iMajor, 1160 mng_uint8* iMinor, 1161 mng_uint8* iRelease) 1162{ 1163 mng_int32 iTop, iLower, iUpper, iMiddle; 1164 mng_func_entryp pEntry; /* pointer to found entry */ 1165 /* determine max index of table */ 1166 iTop = (sizeof (func_table) / sizeof (func_table [0])) - 1; 1167 1168 iLower = 0; /* initialize binary search */ 1169 iMiddle = iTop >> 1; /* start in the middle */ 1170 iUpper = iTop; 1171 pEntry = 0; /* no goods yet! */ 1172 1173 do /* the binary search itself */ 1174 { 1175 mng_int32 iRslt = strcmp(func_table [iMiddle].zFunction, zFunction); 1176 if (iRslt < 0) 1177 iLower = iMiddle + 1; 1178 else if (iRslt > 0) 1179 iUpper = iMiddle - 1; 1180 else 1181 { 1182 pEntry = &func_table [iMiddle]; 1183 break; 1184 }; 1185 1186 iMiddle = (iLower + iUpper) >> 1; 1187 } 1188 while (iLower <= iUpper); 1189 1190 if (pEntry) /* found it ? */ 1191 { 1192 *iMajor = pEntry->iMajor; 1193 *iMinor = pEntry->iMinor; 1194 *iRelease = pEntry->iRelease; 1195 return MNG_TRUE; 1196 } 1197 else 1198 { 1199 *iMajor = 0; 1200 *iMinor = 0; 1201 *iRelease = 0; 1202 return MNG_FALSE; 1203 } 1204} 1205#endif 1206 1207/* *****************************************************************…
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