diff options
Diffstat (limited to 'src/libtiff')
42 files changed, 5623 insertions, 4776 deletions
diff --git a/src/libtiff/t4.h b/src/libtiff/t4.h index b8f08fd..f7bfe1e 100644 --- a/src/libtiff/t4.h +++ b/src/libtiff/t4.h @@ -1,4 +1,4 @@ -/* $Id: t4.h,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: t4.h,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler diff --git a/src/libtiff/tif_aux.c b/src/libtiff/tif_aux.c index d33a144..8aad4eb 100644 --- a/src/libtiff/tif_aux.c +++ b/src/libtiff/tif_aux.c @@ -1,4 +1,4 @@ -/* $Id: tif_aux.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_aux.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1991-1997 Sam Leffler @@ -34,7 +34,8 @@ #include <math.h> tdata_t -_TIFFCheckMalloc(TIFF* tif, size_t nmemb, size_t elem_size, const char* what) +_TIFFCheckRealloc(TIFF* tif, tdata_t buffer, + size_t nmemb, size_t elem_size, const char* what) { tdata_t cp = NULL; tsize_t bytes = nmemb * elem_size; @@ -43,12 +44,19 @@ _TIFFCheckMalloc(TIFF* tif, size_t nmemb, size_t elem_size, const char* what) * XXX: Check for integer overflow. */ if (nmemb && elem_size && bytes / elem_size == nmemb) - cp = _TIFFmalloc(bytes); + cp = _TIFFrealloc(buffer, bytes); if (cp == NULL) - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "No space %s", what); + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "No space %s", what); + + return cp; +} - return (cp); +tdata_t +_TIFFCheckMalloc(TIFF* tif, size_t nmemb, size_t elem_size, const char* what) +{ + return _TIFFCheckRealloc(tif, NULL, nmemb, elem_size, what); } static int diff --git a/src/libtiff/tif_close.c b/src/libtiff/tif_close.c index 5047d37..2e8250e 100644 --- a/src/libtiff/tif_close.c +++ b/src/libtiff/tif_close.c @@ -1,4 +1,4 @@ -/* $Id: tif_close.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_close.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -54,27 +54,27 @@ TIFFCleanup(TIFF* tif) TIFFFreeDirectory(tif); if (tif->tif_dirlist) - _TIFFfree(tif->tif_dirlist); - + _TIFFfree(tif->tif_dirlist); + /* Clean up client info links */ while( tif->tif_clientinfo ) { - TIFFClientInfoLink *link = tif->tif_clientinfo; + TIFFClientInfoLink *link = tif->tif_clientinfo; - tif->tif_clientinfo = link->next; - _TIFFfree( link->name ); - _TIFFfree( link ); + tif->tif_clientinfo = link->next; + _TIFFfree( link->name ); + _TIFFfree( link ); } if (tif->tif_rawdata && (tif->tif_flags&TIFF_MYBUFFER)) - _TIFFfree(tif->tif_rawdata); + _TIFFfree(tif->tif_rawdata); if (isMapped(tif)) - TIFFUnmapFileContents(tif, tif->tif_base, tif->tif_size); + TIFFUnmapFileContents(tif, tif->tif_base, tif->tif_size); /* Clean up custom fields */ - if (tif->tif_nfields > 0) + if (tif->tif_nfields > 0) { - size_t i; + size_t i; for (i = 0; i < tif->tif_nfields; i++) { diff --git a/src/libtiff/tif_codec.c b/src/libtiff/tif_codec.c index 377e083..6f7099f 100644 --- a/src/libtiff/tif_codec.c +++ b/src/libtiff/tif_codec.c @@ -1,4 +1,4 @@ -/* $Id: tif_codec.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_codec.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -102,9 +102,12 @@ static int _notConfigured(TIFF* tif) { const TIFFCodec* c = TIFFFindCODEC(tif->tif_dir.td_compression); - + char compression_code[20]; + + sprintf( compression_code, "%d", tif->tif_dir.td_compression ); TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "%s compression support is not configured", c->name); + "%s compression support is not configured", + c ? c->name : compression_code ); return (0); } diff --git a/src/libtiff/tif_color.c b/src/libtiff/tif_color.c index 9e9481e..1f69d22 100644 --- a/src/libtiff/tif_color.c +++ b/src/libtiff/tif_color.c @@ -1,4 +1,4 @@ -/* $Id: tif_color.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_color.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler diff --git a/src/libtiff/tif_compress.c b/src/libtiff/tif_compress.c index cbbb295..e99dc93 100644 --- a/src/libtiff/tif_compress.c +++ b/src/libtiff/tif_compress.c @@ -1,4 +1,4 @@ -/* $Id: tif_compress.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_compress.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -37,12 +37,13 @@ TIFFNoEncode(TIFF* tif, const char* method) const TIFFCodec* c = TIFFFindCODEC(tif->tif_dir.td_compression); if (c) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "%s %s encoding is not implemented", - c->name, method); + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%s %s encoding is not implemented", + c->name, method); } else { TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Compression scheme %u %s encoding is not implemented", - tif->tif_dir.td_compression, method); + "Compression scheme %u %s encoding is not implemented", + tif->tif_dir.td_compression, method); } return (-1); } @@ -74,12 +75,13 @@ TIFFNoDecode(TIFF* tif, const char* method) const TIFFCodec* c = TIFFFindCODEC(tif->tif_dir.td_compression); if (c) - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "%s %s decoding is not implemented", - c->name, method); + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%s %s decoding is not implemented", + c->name, method); else TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Compression scheme %u %s decoding is not implemented", - tif->tif_dir.td_compression, method); + "Compression scheme %u %s decoding is not implemented", + tif->tif_dir.td_compression, method); return (-1); } @@ -109,7 +111,7 @@ _TIFFNoSeek(TIFF* tif, uint32 off) { (void) off; TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Compression algorithm does not support random access"); + "Compression algorithm does not support random access"); return (0); } @@ -144,7 +146,7 @@ _TIFFSetDefaultCompressionState(TIFF* tif) tif->tif_cleanup = _TIFFvoid; tif->tif_defstripsize = _TIFFDefaultStripSize; tif->tif_deftilesize = _TIFFDefaultTileSize; - tif->tif_flags &= ~TIFF_NOBITREV; + tif->tif_flags &= ~(TIFF_NOBITREV|TIFF_NOREADRAW); } int diff --git a/src/libtiff/tif_dir.c b/src/libtiff/tif_dir.c index f2d1ee7..f9621ca 100644 --- a/src/libtiff/tif_dir.c +++ b/src/libtiff/tif_dir.c @@ -1,4 +1,4 @@ -/* $Id: tif_dir.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_dir.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -74,21 +74,37 @@ void _TIFFsetDoubleArray(double** dpp, double* dp, uint32 n) static int setExtraSamples(TIFFDirectory* td, va_list ap, uint32* v) { +/* XXX: Unassociated alpha data == 999 is a known Corel Draw bug, see below */ +#define EXTRASAMPLE_COREL_UNASSALPHA 999 + uint16* va; uint32 i; *v = va_arg(ap, uint32); if ((uint16) *v > td->td_samplesperpixel) - return (0); + return 0; va = va_arg(ap, uint16*); if (*v > 0 && va == NULL) /* typically missing param */ - return (0); - for (i = 0; i < *v; i++) - if (va[i] > EXTRASAMPLE_UNASSALPHA) - return (0); + return 0; + for (i = 0; i < *v; i++) { + if (va[i] > EXTRASAMPLE_UNASSALPHA) { + /* + * XXX: Corel Draw is known to produce incorrect + * ExtraSamples tags which must be patched here if we + * want to be able to open some of the damaged TIFF + * files: + */ + if (va[i] == EXTRASAMPLE_COREL_UNASSALPHA) + va[i] = EXTRASAMPLE_UNASSALPHA; + else + return 0; + } + } td->td_extrasamples = (uint16) *v; _TIFFsetShortArray(&td->td_sampleinfo, va, td->td_extrasamples); - return (1); + return 1; + +#undef EXTRASAMPLE_COREL_UNASSALPHA } static uint32 @@ -121,7 +137,7 @@ static int _TIFFVSetField(TIFF* tif, ttag_t tag, va_list ap) { static const char module[] = "_TIFFVSetField"; - + TIFFDirectory* td = &tif->tif_dir; int status = 1; uint32 v32, i, v; @@ -192,14 +208,11 @@ _TIFFVSetField(TIFF* tif, ttag_t tag, va_list ap) goto badvalue; td->td_fillorder = (uint16) v; break; - break; case TIFFTAG_ORIENTATION: v = va_arg(ap, uint32); - if (v < ORIENTATION_TOPLEFT || ORIENTATION_LEFTBOT < v) { - TIFFWarningExt(tif->tif_clientdata, tif->tif_name, - "Bad value %lu for \"%s\" tag ignored", - v, _TIFFFieldWithTag(tif, tag)->field_name); - } else + if (v < ORIENTATION_TOPLEFT || ORIENTATION_LEFTBOT < v) + goto badvalue; + else td->td_orientation = (uint16) v; break; case TIFFTAG_SAMPLESPERPIXEL: @@ -345,8 +358,9 @@ _TIFFVSetField(TIFF* tif, ttag_t tag, va_list ap) _TIFFsetLongArray(&td->td_subifd, va_arg(ap, uint32*), (long) td->td_nsubifd); } else { - TIFFErrorExt(tif->tif_clientdata, module, "%s: Sorry, cannot nest SubIFDs", - tif->tif_name); + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Sorry, cannot nest SubIFDs", + tif->tif_name); status = 0; } break; @@ -374,9 +388,9 @@ _TIFFVSetField(TIFF* tif, ttag_t tag, va_list ap) } break; default: { - const TIFFFieldInfo* fip = _TIFFFindFieldInfo(tif, tag, TIFF_ANY); TIFFTagValue *tv; int tv_size, iCustom; + const TIFFFieldInfo* fip = _TIFFFindFieldInfo(tif, tag, TIFF_ANY); /* * This can happen if multiple images are open with different @@ -389,9 +403,9 @@ _TIFFVSetField(TIFF* tif, ttag_t tag, va_list ap) */ if(fip == NULL || fip->field_bit != FIELD_CUSTOM) { TIFFErrorExt(tif->tif_clientdata, module, - "%s: Invalid %stag \"%s\" (not supported by codec)", - tif->tif_name, isPseudoTag(tag) ? "pseudo-" : "", - _TIFFFieldWithTag(tif, tag)->field_name); + "%s: Invalid %stag \"%s\" (not supported by codec)", + tif->tif_name, isPseudoTag(tag) ? "pseudo-" : "", + fip ? fip->field_name : "Unknown"); status = 0; break; } @@ -400,16 +414,15 @@ _TIFFVSetField(TIFF* tif, ttag_t tag, va_list ap) * Find the existing entry for this custom value. */ tv = NULL; - for(iCustom = 0; iCustom < td->td_customValueCount; iCustom++) { - if(td->td_customValues[iCustom].info == fip) { - tv = td->td_customValues + iCustom; - if(tv->value != NULL) - { - _TIFFfree(tv->value); - tv->value = NULL; - } - break; - } + for (iCustom = 0; iCustom < td->td_customValueCount; iCustom++) { + if (td->td_customValues[iCustom].info->field_tag == tag) { + tv = td->td_customValues + iCustom; + if (tv->value != NULL) { + _TIFFfree(tv->value); + tv->value = NULL; + } + break; + } } /* @@ -432,7 +445,7 @@ _TIFFVSetField(TIFF* tif, ttag_t tag, va_list ap) td->td_customValues = new_customValues; - tv = td->td_customValues + (td->td_customValueCount-1); + tv = td->td_customValues + (td->td_customValueCount - 1); tv->info = fip; tv->value = NULL; tv->count = 0; @@ -468,7 +481,8 @@ _TIFFVSetField(TIFF* tif, ttag_t tag, va_list ap) if (fip->field_type == TIFF_ASCII) _TIFFsetString((char **)&tv->value, va_arg(ap, char *)); else { - tv->value = _TIFFmalloc(tv_size * tv->count); + tv->value = _TIFFCheckMalloc(tif, tv_size, tv->count, + "Tag Value"); if (!tv->value) { status = 0; goto end; @@ -571,13 +585,17 @@ end: va_end(ap); return (status); badvalue: - TIFFErrorExt(tif->tif_clientdata, module, "%s: Bad value %d for \"%s\"", - tif->tif_name, v, _TIFFFieldWithTag(tif, tag)->field_name); + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Bad value %d for \"%s\" tag", + tif->tif_name, v, + _TIFFFieldWithTag(tif, tag)->field_name); va_end(ap); return (0); badvalue32: - TIFFErrorExt(tif->tif_clientdata, module, "%s: Bad value %ld for \"%s\"", - tif->tif_name, v32, _TIFFFieldWithTag(tif, tag)->field_name); + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Bad value %u for \"%s\" tag", + tif->tif_name, v32, + _TIFFFieldWithTag(tif, tag)->field_name); va_end(ap); return (0); } @@ -806,21 +824,22 @@ _TIFFVGetField(TIFF* tif, ttag_t tag, va_list ap) int i; /* - * This can happen if multiple images are open with - * different codecs which have private tags. The - * global tag information table may then have tags - * that are valid for one file but not the other. - * If the client tries to get a tag that is not valid - * for the image's codec then we'll arrive here. + * This can happen if multiple images are open with different + * codecs which have private tags. The global tag information + * table may then have tags that are valid for one file but not + * the other. If the client tries to get a tag that is not valid + * for the image's codec then we'll arrive here. */ if( fip == NULL || fip->field_bit != FIELD_CUSTOM ) { - TIFFErrorExt(tif->tif_clientdata, "_TIFFVGetField", - "%s: Invalid %stag \"%s\" (not supported by codec)", - tif->tif_name, isPseudoTag(tag) ? "pseudo-" : "", - _TIFFFieldWithTag(tif, tag)->field_name); - ret_val = 0; - break; + TIFFErrorExt(tif->tif_clientdata, "_TIFFVGetField", + "%s: Invalid %stag \"%s\" " + "(not supported by codec)", + tif->tif_name, + isPseudoTag(tag) ? "pseudo-" : "", + fip ? fip->field_name : "Unknown"); + ret_val = 0; + break; } /* @@ -1032,7 +1051,7 @@ TIFFDefaultDirectory(TIFF* tif) size_t tiffFieldInfoCount; const TIFFFieldInfo *tiffFieldInfo = - _TIFFGetFieldInfo(&tiffFieldInfoCount); + _TIFFGetFieldInfo(&tiffFieldInfoCount); _TIFFSetupFieldInfo(tif, tiffFieldInfo, tiffFieldInfoCount); _TIFFmemset(td, 0, sizeof (*td)); @@ -1053,7 +1072,7 @@ TIFFDefaultDirectory(TIFF* tif) td->td_ycbcrsubsampling[1] = 2; td->td_ycbcrpositioning = YCBCRPOSITION_CENTERED; tif->tif_postdecode = _TIFFNoPostDecode; - tif->tif_foundfield = NULL; + tif->tif_foundfield = NULL; tif->tif_tagmethods.vsetfield = _TIFFVSetField; tif->tif_tagmethods.vgetfield = _TIFFVGetField; tif->tif_tagmethods.printdir = NULL; @@ -1074,12 +1093,12 @@ TIFFDefaultDirectory(TIFF* tif) */ tif->tif_flags &= ~TIFF_DIRTYDIRECT; - /* - * As per http://bugzilla.remotesensing.org/show_bug.cgi?id=19 - * we clear the ISTILED flag when setting up a new directory. - * Should we also be clearing stuff like INSUBIFD? - */ - tif->tif_flags &= ~TIFF_ISTILED; + /* + * As per http://bugzilla.remotesensing.org/show_bug.cgi?id=19 + * we clear the ISTILED flag when setting up a new directory. + * Should we also be clearing stuff like INSUBIFD? + */ + tif->tif_flags &= ~TIFF_ISTILED; return (1); } @@ -1087,59 +1106,59 @@ TIFFDefaultDirectory(TIFF* tif) static int TIFFAdvanceDirectory(TIFF* tif, uint32* nextdir, toff_t* off) { - static const char module[] = "TIFFAdvanceDirectory"; - uint16 dircount; - if (isMapped(tif)) - { - toff_t poff=*nextdir; - if (poff+sizeof(uint16) > tif->tif_size) - { + static const char module[] = "TIFFAdvanceDirectory"; + uint16 dircount; + if (isMapped(tif)) + { + toff_t poff=*nextdir; + if (poff+sizeof(uint16) > tif->tif_size) + { TIFFErrorExt(tif->tif_clientdata, module, "%s: Error fetching directory count", - tif->tif_name); - return (0); - } - _TIFFmemcpy(&dircount, tif->tif_base+poff, sizeof (uint16)); - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabShort(&dircount); - poff+=sizeof (uint16)+dircount*sizeof (TIFFDirEntry); - if (off != NULL) - *off = poff; - if (((toff_t) (poff+sizeof (uint32))) > tif->tif_size) - { + tif->tif_name); + return (0); + } + _TIFFmemcpy(&dircount, tif->tif_base+poff, sizeof (uint16)); + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabShort(&dircount); + poff+=sizeof (uint16)+dircount*sizeof (TIFFDirEntry); + if (off != NULL) + *off = poff; + if (((toff_t) (poff+sizeof (uint32))) > tif->tif_size) + { TIFFErrorExt(tif->tif_clientdata, module, "%s: Error fetching directory link", - tif->tif_name); - return (0); - } - _TIFFmemcpy(nextdir, tif->tif_base+poff, sizeof (uint32)); - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong(nextdir); - return (1); - } - else - { - if (!SeekOK(tif, *nextdir) || - !ReadOK(tif, &dircount, sizeof (uint16))) { + tif->tif_name); + return (0); + } + _TIFFmemcpy(nextdir, tif->tif_base+poff, sizeof (uint32)); + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabLong(nextdir); + return (1); + } + else + { + if (!SeekOK(tif, *nextdir) || + !ReadOK(tif, &dircount, sizeof (uint16))) { TIFFErrorExt(tif->tif_clientdata, module, "%s: Error fetching directory count", - tif->tif_name); - return (0); - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabShort(&dircount); - if (off != NULL) - *off = TIFFSeekFile(tif, - dircount*sizeof (TIFFDirEntry), SEEK_CUR); - else - (void) TIFFSeekFile(tif, - dircount*sizeof (TIFFDirEntry), SEEK_CUR); - if (!ReadOK(tif, nextdir, sizeof (uint32))) { + tif->tif_name); + return (0); + } + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabShort(&dircount); + if (off != NULL) + *off = TIFFSeekFile(tif, + dircount*sizeof (TIFFDirEntry), SEEK_CUR); + else + (void) TIFFSeekFile(tif, + dircount*sizeof (TIFFDirEntry), SEEK_CUR); + if (!ReadOK(tif, nextdir, sizeof (uint32))) { TIFFErrorExt(tif->tif_clientdata, module, "%s: Error fetching directory link", - tif->tif_name); - return (0); - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong(nextdir); - return (1); - } + tif->tif_name); + return (0); + } + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabLong(nextdir); + return (1); + } } /* diff --git a/src/libtiff/tif_dir.h b/src/libtiff/tif_dir.h index 039a9cc..c843b02 100644 --- a/src/libtiff/tif_dir.h +++ b/src/libtiff/tif_dir.h @@ -1,4 +1,4 @@ -/* $Id: tif_dir.h,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_dir.h,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -38,44 +38,47 @@ typedef struct { /* bit vector of fields that are set */ unsigned long td_fieldsset[FIELD_SETLONGS]; - uint32 td_imagewidth, td_imagelength, td_imagedepth; - uint32 td_tilewidth, td_tilelength, td_tiledepth; - uint32 td_subfiletype; - uint16 td_bitspersample; - uint16 td_sampleformat; - uint16 td_compression; - uint16 td_photometric; - uint16 td_threshholding; - uint16 td_fillorder; - uint16 td_orientation; - uint16 td_samplesperpixel; - uint32 td_rowsperstrip; - uint16 td_minsamplevalue, td_maxsamplevalue; - double td_sminsamplevalue, td_smaxsamplevalue; - float td_xresolution, td_yresolution; - uint16 td_resolutionunit; - uint16 td_planarconfig; - float td_xposition, td_yposition; - uint16 td_pagenumber[2]; - uint16* td_colormap[3]; - uint16 td_halftonehints[2]; - uint16 td_extrasamples; - uint16* td_sampleinfo; - tstrip_t td_stripsperimage; - tstrip_t td_nstrips; /* size of offset & bytecount arrays */ - uint32* td_stripoffset; - uint32* td_stripbytecount; - int td_stripbytecountsorted; /* is the bytecount array sorted ascending? */ - uint16 td_nsubifd; - uint32* td_subifd; + uint32 td_imagewidth, td_imagelength, td_imagedepth; + uint32 td_tilewidth, td_tilelength, td_tiledepth; + uint32 td_subfiletype; + uint16 td_bitspersample; + uint16 td_sampleformat; + uint16 td_compression; + uint16 td_photometric; + uint16 td_threshholding; + uint16 td_fillorder; + uint16 td_orientation; + uint16 td_samplesperpixel; + uint32 td_rowsperstrip; + uint16 td_minsamplevalue, td_maxsamplevalue; + double td_sminsamplevalue, td_smaxsamplevalue; + float td_xresolution, td_yresolution; + uint16 td_resolutionunit; + uint16 td_planarconfig; + float td_xposition, td_yposition; + uint16 td_pagenumber[2]; + uint16* td_colormap[3]; + uint16 td_halftonehints[2]; + uint16 td_extrasamples; + uint16* td_sampleinfo; + /* even though the name is misleading, td_stripsperimage is the number + * of striles (=strips or tiles) per plane, and td_nstrips the total + * number of striles */ + tstrile_t td_stripsperimage; + tstrile_t td_nstrips; /* size of offset & bytecount arrays */ + toff_t* td_stripoffset; + toff_t* td_stripbytecount; /* FIXME: it should be tsize_t array */ + int td_stripbytecountsorted; /* is the bytecount array sorted ascending? */ + uint16 td_nsubifd; + uint32* td_subifd; /* YCbCr parameters */ - uint16 td_ycbcrsubsampling[2]; - uint16 td_ycbcrpositioning; + uint16 td_ycbcrsubsampling[2]; + uint16 td_ycbcrpositioning; /* Colorimetry parameters */ - uint16* td_transferfunction[3]; + uint16* td_transferfunction[3]; /* CMYK parameters */ - int td_inknameslen; - char* td_inknames; + int td_inknameslen; + char* td_inknames; int td_customValueCount; TIFFTagValue *td_customValues; @@ -177,6 +180,7 @@ extern "C" { extern const TIFFFieldInfo *_TIFFGetFieldInfo(size_t *); extern const TIFFFieldInfo *_TIFFGetExifFieldInfo(size_t *); extern void _TIFFSetupFieldInfo(TIFF*, const TIFFFieldInfo[], size_t); +extern int _TIFFMergeFieldInfo(TIFF*, const TIFFFieldInfo[], int); extern void _TIFFPrintFieldInfo(TIFF*, FILE*); extern TIFFDataType _TIFFSampleToTagType(TIFF*); extern const TIFFFieldInfo* _TIFFFindOrRegisterFieldInfo( TIFF *tif, @@ -185,7 +189,6 @@ extern const TIFFFieldInfo* _TIFFFindOrRegisterFieldInfo( TIFF *tif, extern TIFFFieldInfo* _TIFFCreateAnonFieldInfo( TIFF *tif, ttag_t tag, TIFFDataType dt ); -#define _TIFFMergeFieldInfo TIFFMergeFieldInfo #define _TIFFFindFieldInfo TIFFFindFieldInfo #define _TIFFFindFieldInfoByName TIFFFindFieldInfoByName #define _TIFFFieldWithTag TIFFFieldWithTag diff --git a/src/libtiff/tif_dirinfo.c b/src/libtiff/tif_dirinfo.c index 0f9020b..610632d 100644 --- a/src/libtiff/tif_dirinfo.c +++ b/src/libtiff/tif_dirinfo.c @@ -1,4 +1,4 @@ -/* $Id: tif_dirinfo.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_dirinfo.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -449,6 +449,8 @@ exifFieldInfo[] = { 1, 0, "SubSecTimeDigitized" }, { EXIFTAG_FLASHPIXVERSION, 4, 4, TIFF_UNDEFINED, FIELD_CUSTOM, 1, 0, "FlashpixVersion" }, + { EXIFTAG_COLORSPACE, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "ColorSpace" }, { EXIFTAG_PIXELXDIMENSION, 1, 1, TIFF_LONG, FIELD_CUSTOM, 1, 0, "PixelXDimension" }, { EXIFTAG_PIXELXDIMENSION, 1, 1, TIFF_SHORT, FIELD_CUSTOM, @@ -542,7 +544,11 @@ _TIFFSetupFieldInfo(TIFF* tif, const TIFFFieldInfo info[], size_t n) _TIFFfree(tif->tif_fieldinfo); tif->tif_nfields = 0; } - _TIFFMergeFieldInfo(tif, info, n); + if (!_TIFFMergeFieldInfo(tif, info, n)) + { + TIFFErrorExt(tif->tif_clientdata, "_TIFFSetupFieldInfo", + "Setting up field info failed"); + } } static int @@ -552,9 +558,10 @@ tagCompare(const void* a, const void* b) const TIFFFieldInfo* tb = *(const TIFFFieldInfo**) b; /* NB: be careful of return values for 16-bit platforms */ if (ta->field_tag != tb->field_tag) - return (ta->field_tag < tb->field_tag ? -1 : 1); + return (int)ta->field_tag - (int)tb->field_tag; else - return ((int)tb->field_type - (int)ta->field_type); + return (ta->field_type == TIFF_ANY) ? + 0 : ((int)tb->field_type - (int)ta->field_type); } static int @@ -562,13 +569,30 @@ tagNameCompare(const void* a, const void* b) { const TIFFFieldInfo* ta = *(const TIFFFieldInfo**) a; const TIFFFieldInfo* tb = *(const TIFFFieldInfo**) b; + int ret = strcmp(ta->field_name, tb->field_name); - return strcmp(ta->field_name, tb->field_name); + if (ret) + return ret; + else + return (ta->field_type == TIFF_ANY) ? + 0 : ((int)tb->field_type - (int)ta->field_type); } void +TIFFMergeFieldInfo(TIFF* tif, const TIFFFieldInfo info[], int n) +{ + if (_TIFFMergeFieldInfo(tif, info, n) < 0) + { + TIFFErrorExt(tif->tif_clientdata, "TIFFMergeFieldInfo", + "Merging block of %d fields failed", n); + } +} + +int _TIFFMergeFieldInfo(TIFF* tif, const TIFFFieldInfo info[], int n) { + static const char module[] = "_TIFFMergeFieldInfo"; + static const char reason[] = "for field info array"; TIFFFieldInfo** tp; int i; @@ -576,20 +600,37 @@ _TIFFMergeFieldInfo(TIFF* tif, const TIFFFieldInfo info[], int n) if (tif->tif_nfields > 0) { tif->tif_fieldinfo = (TIFFFieldInfo**) - _TIFFrealloc(tif->tif_fieldinfo, - (tif->tif_nfields+n) * sizeof (TIFFFieldInfo*)); + _TIFFCheckRealloc(tif, tif->tif_fieldinfo, + (tif->tif_nfields + n), + sizeof (TIFFFieldInfo*), reason); } else { tif->tif_fieldinfo = (TIFFFieldInfo**) - _TIFFmalloc(n * sizeof (TIFFFieldInfo*)); + _TIFFCheckMalloc(tif, n, sizeof (TIFFFieldInfo*), + reason); + } + if (!tif->tif_fieldinfo) { + TIFFErrorExt(tif->tif_clientdata, module, + "Failed to allocate field info array"); + return 0; } - assert(tif->tif_fieldinfo != NULL); tp = tif->tif_fieldinfo + tif->tif_nfields; for (i = 0; i < n; i++) - *tp++ = (TIFFFieldInfo*) (info + i); /* XXX */ + { + const TIFFFieldInfo *fip = + _TIFFFindFieldInfo(tif, info[i].field_tag, info[i].field_type); + + /* only add definitions that aren't already present */ + if (!fip) { + *tp++ = (TIFFFieldInfo*) (info + i); + tif->tif_nfields++; + } + } /* Sort the field info by tag number */ - qsort(tif->tif_fieldinfo, tif->tif_nfields += n, + qsort(tif->tif_fieldinfo, tif->tif_nfields, sizeof (TIFFFieldInfo*), tagCompare); + + return n; } void @@ -704,67 +745,58 @@ _TIFFSampleToTagType(TIFF* tif) const TIFFFieldInfo* _TIFFFindFieldInfo(TIFF* tif, ttag_t tag, TIFFDataType dt) { - int i, n; + TIFFFieldInfo key = {0, 0, 0, TIFF_NOTYPE, 0, 0, 0, 0}; + TIFFFieldInfo* pkey = &key; + const TIFFFieldInfo **ret; if (tif->tif_foundfield && tif->tif_foundfield->field_tag == tag && (dt == TIFF_ANY || dt == tif->tif_foundfield->field_type)) - return (tif->tif_foundfield); - /* NB: use sorted search (e.g. binary search) */ - if(dt != TIFF_ANY) { - TIFFFieldInfo key = {0, 0, 0, TIFF_NOTYPE, 0, 0, 0, 0}; - TIFFFieldInfo* pkey = &key; - const TIFFFieldInfo **ret; - - key.field_tag = tag; - key.field_type = dt; - - ret = (const TIFFFieldInfo **) bsearch(&pkey, - tif->tif_fieldinfo, - tif->tif_nfields, - sizeof(TIFFFieldInfo *), - tagCompare); - return (ret) ? (*ret) : NULL; - } else for (i = 0, n = tif->tif_nfields; i < n; i++) { - const TIFFFieldInfo* fip = tif->tif_fieldinfo[i]; - if (fip->field_tag == tag && - (dt == TIFF_ANY || fip->field_type == dt)) - return (tif->tif_foundfield = fip); + return tif->tif_foundfield; + + /* If we are invoked with no field information, then just return. */ + if ( !tif->tif_fieldinfo ) { + return NULL; } - return ((const TIFFFieldInfo *)0); + + /* NB: use sorted search (e.g. binary search) */ + key.field_tag = tag; + key.field_type = dt; + + ret = (const TIFFFieldInfo **) bsearch(&pkey, + tif->tif_fieldinfo, + tif->tif_nfields, + sizeof(TIFFFieldInfo *), + tagCompare); + return tif->tif_foundfield = (ret ? *ret : NULL); } const TIFFFieldInfo* _TIFFFindFieldInfoByName(TIFF* tif, const char *field_name, TIFFDataType dt) { - int i, n; + TIFFFieldInfo key = {0, 0, 0, TIFF_NOTYPE, 0, 0, 0, 0}; + TIFFFieldInfo* pkey = &key; + const TIFFFieldInfo **ret; if (tif->tif_foundfield && streq(tif->tif_foundfield->field_name, field_name) && (dt == TIFF_ANY || dt == tif->tif_foundfield->field_type)) return (tif->tif_foundfield); + + /* If we are invoked with no field information, then just return. */ + if ( !tif->tif_fieldinfo ) { + return NULL; + } + /* NB: use sorted search (e.g. binary search) */ - if(dt != TIFF_ANY) { - TIFFFieldInfo key = {0, 0, 0, TIFF_NOTYPE, 0, 0, 0, 0}; - TIFFFieldInfo* pkey = &key; - const TIFFFieldInfo **ret; - - key.field_name = (char *)field_name; - key.field_type = dt; - - ret = (const TIFFFieldInfo **) lfind(&pkey, - tif->tif_fieldinfo, - &tif->tif_nfields, - sizeof(TIFFFieldInfo *), - tagNameCompare); - return (ret) ? (*ret) : NULL; - } else - for (i = 0, n = tif->tif_nfields; i < n; i++) { - const TIFFFieldInfo* fip = tif->tif_fieldinfo[i]; - if (streq(fip->field_name, field_name) && - (dt == TIFF_ANY || fip->field_type == dt)) - return (tif->tif_foundfield = fip); - } - return ((const TIFFFieldInfo *)0); + key.field_name = (char *)field_name; + key.field_type = dt; + + ret = (const TIFFFieldInfo **) lfind(&pkey, + tif->tif_fieldinfo, + &tif->tif_nfields, + sizeof(TIFFFieldInfo *), + tagNameCompare); + return tif->tif_foundfield = (ret ? *ret : NULL); } const TIFFFieldInfo* @@ -773,8 +805,8 @@ _TIFFFieldWithTag(TIFF* tif, ttag_t tag) const TIFFFieldInfo* fip = _TIFFFindFieldInfo(tif, tag, TIFF_ANY); if (!fip) { TIFFErrorExt(tif->tif_clientdata, "TIFFFieldWithTag", - "Internal error, unknown tag 0x%x", - (unsigned int) tag); + "Internal error, unknown tag 0x%x", + (unsigned int) tag); assert(fip != NULL); /*NOTREACHED*/ } @@ -788,7 +820,7 @@ _TIFFFieldWithName(TIFF* tif, const char *field_name) _TIFFFindFieldInfoByName(tif, field_name, TIFF_ANY); if (!fip) { TIFFErrorExt(tif->tif_clientdata, "TIFFFieldWithName", - "Internal error, unknown tag %s", field_name); + "Internal error, unknown tag %s", field_name); assert(fip != NULL); /*NOTREACHED*/ } @@ -805,7 +837,8 @@ _TIFFFindOrRegisterFieldInfo( TIFF *tif, ttag_t tag, TIFFDataType dt ) if( fld == NULL ) { fld = _TIFFCreateAnonFieldInfo( tif, tag, dt ); - _TIFFMergeFieldInfo( tif, fld, 1 ); + if (!_TIFFMergeFieldInfo(tif, fld, 1)) + return NULL; } return fld; @@ -823,8 +856,8 @@ _TIFFCreateAnonFieldInfo(TIFF *tif, ttag_t tag, TIFFDataType field_type) _TIFFmemset( fld, 0, sizeof(TIFFFieldInfo) ); fld->field_tag = tag; - fld->field_readcount = TIFF_VARIABLE; - fld->field_writecount = TIFF_VARIABLE; + fld->field_readcount = TIFF_VARIABLE2; + fld->field_writecount = TIFF_VARIABLE2; fld->field_type = field_type; fld->field_bit = FIELD_CUSTOM; fld->field_oktochange = TRUE; @@ -835,7 +868,8 @@ _TIFFCreateAnonFieldInfo(TIFF *tif, ttag_t tag, TIFFDataType field_type) return NULL; } - /* note that this name is a special sign to TIFFClose() and + /* + * note that this name is a special sign to TIFFClose() and * _TIFFSetupFieldInfo() to free the field */ sprintf(fld->field_name, "Tag %d", (int) tag); diff --git a/src/libtiff/tif_dirread.c b/src/libtiff/tif_dirread.c index 5c8c708..22f675a 100644 --- a/src/libtiff/tif_dirread.c +++ b/src/libtiff/tif_dirread.c @@ -1,4 +1,4 @@ -/* $Id: tif_dirread.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_dirread.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -41,9 +41,13 @@ extern void TIFFCvtIEEEFloatToNative(TIFF*, uint32, float*); extern void TIFFCvtIEEEDoubleToNative(TIFF*, uint32, double*); #endif +static TIFFDirEntry* TIFFReadDirectoryFind(TIFFDirEntry* dir, + uint16 dircount, uint16 tagid); static int EstimateStripByteCounts(TIFF*, TIFFDirEntry*, uint16); static void MissingRequired(TIFF*, const char*); +static int TIFFCheckDirOffset(TIFF*, toff_t); static int CheckDirCount(TIFF*, TIFFDirEntry*, uint32); +static uint16 TIFFFetchDirectory(TIFF*, toff_t, TIFFDirEntry**, toff_t *); static tsize_t TIFFFetchData(TIFF*, TIFFDirEntry*, char*); static tsize_t TIFFFetchString(TIFF*, TIFFDirEntry*, char*); static float TIFFFetchRational(TIFF*, TIFFDirEntry*); @@ -54,6 +58,7 @@ static int TIFFFetchPerSampleAnys(TIFF*, TIFFDirEntry*, double*); static int TIFFFetchShortArray(TIFF*, TIFFDirEntry*, uint16*); static int TIFFFetchStripThing(TIFF*, TIFFDirEntry*, long, uint32**); static int TIFFFetchRefBlackWhite(TIFF*, TIFFDirEntry*); +static int TIFFFetchSubjectDistance(TIFF*, TIFFDirEntry*); static float TIFFFetchFloat(TIFF*, TIFFDirEntry*); static int TIFFFetchFloatArray(TIFF*, TIFFDirEntry*, float*); static int TIFFFetchDoubleArray(TIFF*, TIFFDirEntry*, double*); @@ -62,9 +67,8 @@ static int TIFFFetchShortPair(TIFF*, TIFFDirEntry*); static void ChopUpSingleUncompressedStrip(TIFF*); /* - * Read the next TIFF directory from a file - * and convert it to the internal format. - * We read directories sequentially. + * Read the next TIFF directory from a file and convert it to the internal + * format. We read directories sequentially. */ int TIFFReadDirectory(TIFF* tif) @@ -79,105 +83,27 @@ TIFFReadDirectory(TIFF* tif) const TIFFFieldInfo* fip; size_t fix; uint16 dircount; - toff_t nextdiroff; - int diroutoforderwarning = 0; - toff_t* new_dirlist; + int diroutoforderwarning = 0, compressionknown = 0; tif->tif_diroff = tif->tif_nextdiroff; - if (tif->tif_diroff == 0) /* no more directories */ - return (0); - /* - * XXX: Trick to prevent IFD looping. The one can create TIFF file - * with looped directory pointers. We will maintain a list of already - * seen directories and check every IFD offset against this list. + * Check whether we have the last offset or bad offset (IFD looping). */ - for (n = 0; n < tif->tif_dirnumber; n++) { - if (tif->tif_dirlist[n] == tif->tif_diroff) - return (0); - } - tif->tif_dirnumber++; - new_dirlist = (toff_t *)_TIFFrealloc(tif->tif_dirlist, - tif->tif_dirnumber * sizeof(toff_t)); - if (!new_dirlist) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Failed to allocate space for IFD list", - tif->tif_name); - return (0); - } - tif->tif_dirlist = new_dirlist; - tif->tif_dirlist[tif->tif_dirnumber - 1] = tif->tif_diroff; - + if (!TIFFCheckDirOffset(tif, tif->tif_nextdiroff)) + return 0; /* * Cleanup any previous compression state. */ (*tif->tif_cleanup)(tif); tif->tif_curdir++; - nextdiroff = 0; - if (!isMapped(tif)) { - if (!SeekOK(tif, tif->tif_diroff)) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Seek error accessing TIFF directory", - tif->tif_name); - return (0); - } - if (!ReadOK(tif, &dircount, sizeof (uint16))) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Can not read TIFF directory count", - tif->tif_name); - return (0); - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabShort(&dircount); - dir = (TIFFDirEntry *)_TIFFCheckMalloc(tif, dircount, - sizeof (TIFFDirEntry), - "to read TIFF directory"); - if (dir == NULL) - return (0); - if (!ReadOK(tif, dir, dircount*sizeof (TIFFDirEntry))) { - TIFFErrorExt(tif->tif_clientdata, module, - "%.100s: Can not read TIFF directory", - tif->tif_name); - goto bad; - } - /* - * Read offset to next directory for sequential scans. - */ - (void) ReadOK(tif, &nextdiroff, sizeof (uint32)); - } else { - toff_t off = tif->tif_diroff; - - if (off + sizeof (uint16) > tif->tif_size) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Can not read TIFF directory count", - tif->tif_name); - return (0); - } else - _TIFFmemcpy(&dircount, tif->tif_base + off, sizeof (uint16)); - off += sizeof (uint16); - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabShort(&dircount); - dir = (TIFFDirEntry *)_TIFFCheckMalloc(tif, dircount, - sizeof (TIFFDirEntry), - "to read TIFF directory"); - if (dir == NULL) - return (0); - if (off + dircount*sizeof (TIFFDirEntry) > tif->tif_size) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Can not read TIFF directory", - tif->tif_name); - goto bad; - } else { - _TIFFmemcpy(dir, tif->tif_base + off, - dircount*sizeof (TIFFDirEntry)); - } - off += dircount* sizeof (TIFFDirEntry); - if (off + sizeof (uint32) <= tif->tif_size) - _TIFFmemcpy(&nextdiroff, tif->tif_base+off, sizeof (uint32)); + dircount = TIFFFetchDirectory(tif, tif->tif_nextdiroff, + &dir, &tif->tif_nextdiroff); + if (!dircount) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Failed to read directory at offset %u", + tif->tif_name, tif->tif_nextdiroff); + return 0; } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong(&nextdiroff); - tif->tif_nextdiroff = nextdiroff; tif->tif_flags &= ~TIFF_BEENWRITING; /* reset before new dir */ /* @@ -216,7 +142,7 @@ TIFFReadDirectory(TIFF* tif) * * It sure would have been nice if Aldus had really thought * this stuff through carefully. - */ + */ for (dp = dir, n = dircount; n > 0; n--, dp++) { if (tif->tif_flags & TIFF_SWAB) { TIFFSwabArrayOfShort(&dp->tdir_tag, 2); @@ -236,7 +162,7 @@ TIFFReadDirectory(TIFF* tif) if (fix >= tif->tif_nfields || dp->tdir_tag == IGNORE) continue; - + /* * Silicon Beach (at least) writes unordered * directory tags (violating the spec). Handle @@ -246,13 +172,13 @@ TIFFReadDirectory(TIFF* tif) if (!diroutoforderwarning) { TIFFWarningExt(tif->tif_clientdata, module, "%s: invalid TIFF directory; tags are not sorted in ascending order", - tif->tif_name); + tif->tif_name); diroutoforderwarning = 1; } fix = 0; /* O(n^2) */ } while (fix < tif->tif_nfields && - tif->tif_fieldinfo[fix]->field_tag < dp->tdir_tag) + tif->tif_fieldinfo[fix]->field_tag < dp->tdir_tag) fix++; if (fix >= tif->tif_nfields || tif->tif_fieldinfo[fix]->field_tag != dp->tdir_tag) { @@ -262,18 +188,25 @@ TIFFReadDirectory(TIFF* tif) "%s: unknown field with tag %d (0x%x) encountered", tif->tif_name, dp->tdir_tag, - dp->tdir_tag, - dp->tdir_type); + dp->tdir_tag); - TIFFMergeFieldInfo(tif, - _TIFFCreateAnonFieldInfo(tif, + if (!_TIFFMergeFieldInfo(tif, + _TIFFCreateAnonFieldInfo(tif, dp->tdir_tag, (TIFFDataType) dp->tdir_type), - 1 ); - fix = 0; - while (fix < tif->tif_nfields && - tif->tif_fieldinfo[fix]->field_tag < dp->tdir_tag) - fix++; + 1)) + { + TIFFWarningExt(tif->tif_clientdata, + module, + "Registering anonymous field with tag %d (0x%x) failed", + dp->tdir_tag, + dp->tdir_tag); + goto ignore; + } + fix = 0; + while (fix < tif->tif_nfields && + tif->tif_fieldinfo[fix]->field_tag < dp->tdir_tag) + fix++; } /* * Null out old tags that we ignore. @@ -288,10 +221,10 @@ TIFFReadDirectory(TIFF* tif) */ fip = tif->tif_fieldinfo[fix]; while (dp->tdir_type != (unsigned short) fip->field_type - && fix < tif->tif_nfields) { + && fix < tif->tif_nfields) { if (fip->field_type == TIFF_ANY) /* wildcard */ break; - fip = tif->tif_fieldinfo[++fix]; + fip = tif->tif_fieldinfo[++fix]; if (fix >= tif->tif_nfields || fip->field_tag != dp->tdir_tag) { TIFFWarningExt(tif->tif_clientdata, module, @@ -326,6 +259,8 @@ TIFFReadDirectory(TIFF* tif) dp->tdir_type, dp->tdir_offset); if (!TIFFSetField(tif, dp->tdir_tag, (uint16)v)) goto bad; + else + compressionknown = 1; break; /* XXX: workaround for broken TIFFs */ } else if (dp->tdir_type == TIFF_LONG) { @@ -362,6 +297,30 @@ TIFFReadDirectory(TIFF* tif) } /* + * XXX: OJPEG hack. + * If a) compression is OJPEG, b) planarconfig tag says it's separate, + * c) strip offsets/bytecounts tag are both present and + * d) both contain exactly one value, then we consistently find + * that the buggy implementation of the buggy compression scheme + * matches contig planarconfig best. So we 'fix-up' the tag here + */ + if ((td->td_compression==COMPRESSION_OJPEG) && + (td->td_planarconfig==PLANARCONFIG_SEPARATE)) { + dp = TIFFReadDirectoryFind(dir,dircount,TIFFTAG_STRIPOFFSETS); + if ((dp!=0) && (dp->tdir_count==1)) { + dp = TIFFReadDirectoryFind(dir, dircount, + TIFFTAG_STRIPBYTECOUNTS); + if ((dp!=0) && (dp->tdir_count==1)) { + td->td_planarconfig=PLANARCONFIG_CONTIG; + TIFFWarningExt(tif->tif_clientdata, + "TIFFReadDirectory", + "Planarconfig tag value assumed incorrect, " + "assuming data is contig instead of chunky"); + } + } + } + + /* * Allocate directory structure and setup defaults. */ if (!TIFFFieldSet(tif, FIELD_IMAGEDIMENSIONS)) { @@ -369,7 +328,7 @@ TIFFReadDirectory(TIFF* tif) goto bad; } /* - * Setup appropriate structures (by strip or by tile) + * Setup appropriate structures (by strip or by tile) */ if (!TIFFFieldSet(tif, FIELD_TILEDIMENSIONS)) { td->td_nstrips = TIFFNumberOfStrips(tif); @@ -391,9 +350,23 @@ TIFFReadDirectory(TIFF* tif) if (td->td_planarconfig == PLANARCONFIG_SEPARATE) td->td_stripsperimage /= td->td_samplesperpixel; if (!TIFFFieldSet(tif, FIELD_STRIPOFFSETS)) { - MissingRequired(tif, + if ((td->td_compression==COMPRESSION_OJPEG) && + (isTiled(tif)==0) && + (td->td_nstrips==1)) { + /* + * XXX: OJPEG hack. + * If a) compression is OJPEG, b) it's not a tiled TIFF, + * and c) the number of strips is 1, + * then we tolerate the absence of stripoffsets tag, + * because, presumably, all required data is in the + * JpegInterchangeFormat stream. + */ + TIFFSetFieldBit(tif, FIELD_STRIPOFFSETS); + } else { + MissingRequired(tif, isTiled(tif) ? "TileOffsets" : "StripOffsets"); - goto bad; + goto bad; + } } /* @@ -414,11 +387,11 @@ TIFFReadDirectory(TIFF* tif) * one value per sample. Because of this, we * accept the tag if one value is supplied. * - * The MinSampleValue, MaxSampleValue, BitsPerSample - * DataType and SampleFormat tags are supposed to be - * written as one value/sample, but some vendors - * incorrectly write one value only -- so we accept - * that as well (yech). Other vendors write correct + * The MinSampleValue, MaxSampleValue, BitsPerSample + * DataType and SampleFormat tags are supposed to be + * written as one value/sample, but some vendors + * incorrectly write one value only -- so we accept + * that as well (yech). Other vendors write correct * value for NumberOfSamples, but incorrect one for * BitsPerSample and friends, and we will read this * too. @@ -529,6 +502,69 @@ TIFFReadDirectory(TIFF* tif) } } /* + * OJPEG hack: + * - If a) compression is OJPEG, and b) photometric tag is missing, + * then we consistently find that photometric should be YCbCr + * - If a) compression is OJPEG, and b) photometric tag says it's RGB, + * then we consistently find that the buggy implementation of the + * buggy compression scheme matches photometric YCbCr instead. + * - If a) compression is OJPEG, and b) bitspersample tag is missing, + * then we consistently find bitspersample should be 8. + * - If a) compression is OJPEG, b) samplesperpixel tag is missing, + * and c) photometric is RGB or YCbCr, then we consistently find + * samplesperpixel should be 3 + * - If a) compression is OJPEG, b) samplesperpixel tag is missing, + * and c) photometric is MINISWHITE or MINISBLACK, then we consistently + * find samplesperpixel should be 3 + */ + if (td->td_compression==COMPRESSION_OJPEG) + { + if (!TIFFFieldSet(tif,FIELD_PHOTOMETRIC)) + { + TIFFWarningExt(tif->tif_clientdata, "TIFFReadDirectory", + "Photometric tag is missing, assuming data is YCbCr"); + if (!TIFFSetField(tif,TIFFTAG_PHOTOMETRIC,PHOTOMETRIC_YCBCR)) + goto bad; + } + else if (td->td_photometric==PHOTOMETRIC_RGB) + { + td->td_photometric=PHOTOMETRIC_YCBCR; + TIFFWarningExt(tif->tif_clientdata, "TIFFReadDirectory", + "Photometric tag value assumed incorrect, " + "assuming data is YCbCr instead of RGB"); + } + if (!TIFFFieldSet(tif,FIELD_BITSPERSAMPLE)) + { + TIFFWarningExt(tif->tif_clientdata,"TIFFReadDirectory", + "BitsPerSample tag is missing, assuming 8 bits per sample"); + if (!TIFFSetField(tif,TIFFTAG_BITSPERSAMPLE,8)) + goto bad; + } + if (!TIFFFieldSet(tif,FIELD_SAMPLESPERPIXEL)) + { + if ((td->td_photometric==PHOTOMETRIC_RGB) + || (td->td_photometric==PHOTOMETRIC_YCBCR)) + { + TIFFWarningExt(tif->tif_clientdata, + "TIFFReadDirectory", + "SamplesPerPixel tag is missing, " + "assuming correct SamplesPerPixel value is 3"); + if (!TIFFSetField(tif,TIFFTAG_SAMPLESPERPIXEL,3)) + goto bad; + } + else if ((td->td_photometric==PHOTOMETRIC_MINISWHITE) + || (td->td_photometric==PHOTOMETRIC_MINISBLACK)) + { + TIFFWarningExt(tif->tif_clientdata, + "TIFFReadDirectory", + "SamplesPerPixel tag is missing, " + "assuming correct SamplesPerPixel value is 1"); + if (!TIFFSetField(tif,TIFFTAG_SAMPLESPERPIXEL,1)) + goto bad; + } + } + } + /* * Verify Palette image has a Colormap. */ if (td->td_photometric == PHOTOMETRIC_PALETTE && @@ -537,76 +573,90 @@ TIFFReadDirectory(TIFF* tif) goto bad; } /* - * Attempt to deal with a missing StripByteCounts tag. + * OJPEG hack: + * We do no further messing with strip/tile offsets/bytecounts in OJPEG + * TIFFs */ - if (!TIFFFieldSet(tif, FIELD_STRIPBYTECOUNTS)) { + if (td->td_compression!=COMPRESSION_OJPEG) + { /* - * Some manufacturers violate the spec by not giving - * the size of the strips. In this case, assume there - * is one uncompressed strip of data. + * Attempt to deal with a missing StripByteCounts tag. */ - if ((td->td_planarconfig == PLANARCONFIG_CONTIG && - td->td_nstrips > 1) || - (td->td_planarconfig == PLANARCONFIG_SEPARATE && - td->td_nstrips != td->td_samplesperpixel)) { - MissingRequired(tif, "StripByteCounts"); - goto bad; - } - TIFFWarningExt(tif->tif_clientdata, module, - "%s: TIFF directory is missing required " - "\"%s\" field, calculating from imagelength", - tif->tif_name, - _TIFFFieldWithTag(tif,TIFFTAG_STRIPBYTECOUNTS)->field_name); - if (EstimateStripByteCounts(tif, dir, dircount) < 0) - goto bad; -/* - * Assume we have wrong StripByteCount value (in case of single strip) in - * following cases: - * - it is equal to zero along with StripOffset; - * - it is larger than file itself (in case of uncompressed image); - * - it is smaller than the size of the bytes per row multiplied on the - * number of rows. The last case should not be checked in the case of - * writing new image, because we may do not know the exact strip size - * until the whole image will be written and directory dumped out. - */ -#define BYTECOUNTLOOKSBAD \ - ( (td->td_stripbytecount[0] == 0 && td->td_stripoffset[0] != 0) || \ - (td->td_compression == COMPRESSION_NONE && \ - td->td_stripbytecount[0] > TIFFGetFileSize(tif) - td->td_stripoffset[0]) || \ - (tif->tif_mode == O_RDONLY && \ - td->td_compression == COMPRESSION_NONE && \ - td->td_stripbytecount[0] < TIFFScanlineSize(tif) * td->td_imagelength) ) - - } else if (td->td_nstrips == 1 - && td->td_stripoffset[0] != 0 - && BYTECOUNTLOOKSBAD) { + if (!TIFFFieldSet(tif, FIELD_STRIPBYTECOUNTS)) { + /* + * Some manufacturers violate the spec by not giving + * the size of the strips. In this case, assume there + * is one uncompressed strip of data. + */ + if ((td->td_planarconfig == PLANARCONFIG_CONTIG && + td->td_nstrips > 1) || + (td->td_planarconfig == PLANARCONFIG_SEPARATE && + td->td_nstrips != td->td_samplesperpixel)) { + MissingRequired(tif, "StripByteCounts"); + goto bad; + } + TIFFWarningExt(tif->tif_clientdata, module, + "%s: TIFF directory is missing required " + "\"%s\" field, calculating from imagelength", + tif->tif_name, + _TIFFFieldWithTag(tif,TIFFTAG_STRIPBYTECOUNTS)->field_name); + if (EstimateStripByteCounts(tif, dir, dircount) < 0) + goto bad; /* - * XXX: Plexus (and others) sometimes give a value of zero for - * a tag when they don't know what the correct value is! Try - * and handle the simple case of estimating the size of a one - * strip image. + * Assume we have wrong StripByteCount value (in case + * of single strip) in following cases: + * - it is equal to zero along with StripOffset; + * - it is larger than file itself (in case of uncompressed + * image); + * - it is smaller than the size of the bytes per row + * multiplied on the number of rows. The last case should + * not be checked in the case of writing new image, + * because we may do not know the exact strip size + * until the whole image will be written and directory + * dumped out. */ - TIFFWarningExt(tif->tif_clientdata, module, + #define BYTECOUNTLOOKSBAD \ + ( (td->td_stripbytecount[0] == 0 && td->td_stripoffset[0] != 0) || \ + (td->td_compression == COMPRESSION_NONE && \ + td->td_stripbytecount[0] > TIFFGetFileSize(tif) - td->td_stripoffset[0]) || \ + (tif->tif_mode == O_RDONLY && \ + td->td_compression == COMPRESSION_NONE && \ + td->td_stripbytecount[0] < TIFFScanlineSize(tif) * td->td_imagelength) ) + + } else if (td->td_nstrips == 1 + && td->td_stripoffset[0] != 0 + && BYTECOUNTLOOKSBAD) { + /* + * XXX: Plexus (and others) sometimes give a value of + * zero for a tag when they don't know what the + * correct value is! Try and handle the simple case + * of estimating the size of a one strip image. + */ + TIFFWarningExt(tif->tif_clientdata, module, "%s: Bogus \"%s\" field, ignoring and calculating from imagelength", - tif->tif_name, - _TIFFFieldWithTag(tif,TIFFTAG_STRIPBYTECOUNTS)->field_name); - if(EstimateStripByteCounts(tif, dir, dircount) < 0) - goto bad; - } else if (td->td_planarconfig == PLANARCONFIG_CONTIG - && td->td_nstrips > 2 - && td->td_compression == COMPRESSION_NONE - && td->td_stripbytecount[0] != td->td_stripbytecount[1]) { - /* - * XXX: Some vendors fill StripByteCount array with absolutely - * wrong values (it can be equal to StripOffset array, for - * example). Catch this case here. - */ - TIFFWarningExt(tif->tif_clientdata, module, + tif->tif_name, + _TIFFFieldWithTag(tif,TIFFTAG_STRIPBYTECOUNTS)->field_name); + if(EstimateStripByteCounts(tif, dir, dircount) < 0) + goto bad; + } else if (td->td_planarconfig == PLANARCONFIG_CONTIG + && td->td_nstrips > 2 + && td->td_compression == COMPRESSION_NONE + && td->td_stripbytecount[0] != td->td_stripbytecount[1] + && td->td_stripbytecount[0] != 0 + && td->td_stripbytecount[1] != 0 ) { + /* + * XXX: Some vendors fill StripByteCount array with + * absolutely wrong values (it can be equal to + * StripOffset array, for example). Catch this case + * here. + */ + TIFFWarningExt(tif->tif_clientdata, module, "%s: Wrong \"%s\" field, ignoring and calculating from imagelength", - tif->tif_name, - _TIFFFieldWithTag(tif,TIFFTAG_STRIPBYTECOUNTS)->field_name); - if (EstimateStripByteCounts(tif, dir, dircount) < 0) - goto bad; + tif->tif_name, + _TIFFFieldWithTag(tif,TIFFTAG_STRIPBYTECOUNTS)->field_name); + if (EstimateStripByteCounts(tif, dir, dircount) < 0) + goto bad; + } } if (dir) { _TIFFfree((char *)dir); @@ -638,15 +688,15 @@ TIFFReadDirectory(TIFF* tif) if (!TIFFFieldSet(tif, FIELD_COMPRESSION)) TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE); - /* - * Some manufacturers make life difficult by writing + /* + * Some manufacturers make life difficult by writing * large amounts of uncompressed data as a single strip. * This is contrary to the recommendations of the spec. - * The following makes an attempt at breaking such images + * The following makes an attempt at breaking such images * into strips closer to the recommended 8k bytes. A * side effect, however, is that the RowsPerStrip tag * value may be changed. - */ + */ if (td->td_nstrips == 1 && td->td_compression == COMPRESSION_NONE && (tif->tif_flags & (TIFF_STRIPCHOP|TIFF_ISTILED)) == TIFF_STRIPCHOP) ChopUpSingleUncompressedStrip(tif); @@ -662,22 +712,25 @@ TIFFReadDirectory(TIFF* tif) tif->tif_scanlinesize = TIFFScanlineSize(tif); if (!tif->tif_scanlinesize) { - TIFFErrorExt(tif->tif_clientdata, module, "%s: cannot handle zero scanline size", - tif->tif_name); + TIFFErrorExt(tif->tif_clientdata, module, + "%s: cannot handle zero scanline size", + tif->tif_name); return (0); } if (isTiled(tif)) { tif->tif_tilesize = TIFFTileSize(tif); if (!tif->tif_tilesize) { - TIFFErrorExt(tif->tif_clientdata, module, "%s: cannot handle zero tile size", - tif->tif_name); + TIFFErrorExt(tif->tif_clientdata, module, + "%s: cannot handle zero tile size", + tif->tif_name); return (0); } } else { if (!TIFFStripSize(tif)) { - TIFFErrorExt(tif->tif_clientdata, module, "%s: cannot handle zero strip size", - tif->tif_name); + TIFFErrorExt(tif->tif_clientdata, module, + "%s: cannot handle zero strip size", + tif->tif_name); return (0); } } @@ -688,7 +741,20 @@ bad: return (0); } -/* +static TIFFDirEntry* +TIFFReadDirectoryFind(TIFFDirEntry* dir, uint16 dircount, uint16 tagid) +{ + TIFFDirEntry* m; + uint16 n; + for (m=dir, n=0; n<dircount; m++, n++) + { + if (m->tdir_tag==tagid) + return(m); + } + return(0); +} + +/* * Read custom directory from the arbitarry offset. * The code is very similar to TIFFReadDirectory(). */ @@ -706,64 +772,16 @@ TIFFReadCustomDirectory(TIFF* tif, toff_t diroff, _TIFFSetupFieldInfo(tif, info, n); - tif->tif_diroff = diroff; - - if (!isMapped(tif)) { - if (!SeekOK(tif, diroff)) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Seek error accessing TIFF directory", - tif->tif_name); - return (0); - } - if (!ReadOK(tif, &dircount, sizeof (uint16))) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Can not read TIFF directory count", - tif->tif_name); - return (0); - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabShort(&dircount); - dir = (TIFFDirEntry *)_TIFFCheckMalloc(tif, dircount, - sizeof (TIFFDirEntry), - "to read TIFF custom directory"); - if (dir == NULL) - return (0); - if (!ReadOK(tif, dir, dircount * sizeof (TIFFDirEntry))) { - TIFFErrorExt(tif->tif_clientdata, module, - "%.100s: Can not read TIFF directory", - tif->tif_name); - goto bad; - } - } else { - toff_t off = diroff; - - if (off + sizeof (uint16) > tif->tif_size) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Can not read TIFF directory count", - tif->tif_name); - return (0); - } else - _TIFFmemcpy(&dircount, tif->tif_base + off, sizeof (uint16)); - off += sizeof (uint16); - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabShort(&dircount); - dir = (TIFFDirEntry *)_TIFFCheckMalloc(tif, dircount, - sizeof (TIFFDirEntry), - "to read TIFF custom directory"); - if (dir == NULL) - return (0); - if (off + dircount * sizeof (TIFFDirEntry) > tif->tif_size) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Can not read TIFF directory", - tif->tif_name); - goto bad; - } else { - _TIFFmemcpy(dir, tif->tif_base + off, - dircount * sizeof (TIFFDirEntry)); - } + dircount = TIFFFetchDirectory(tif, diroff, &dir, NULL); + if (!dircount) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Failed to read custom directory at offset %u", + tif->tif_name, diroff); + return 0; } TIFFFreeDirectory(tif); + _TIFFmemset(&tif->tif_dir, 0, sizeof(TIFFDirectory)); fix = 0; for (dp = dir, i = dircount; i > 0; i--, dp++) { @@ -784,14 +802,18 @@ TIFFReadCustomDirectory(TIFF* tif, toff_t diroff, TIFFWarningExt(tif->tif_clientdata, module, "%s: unknown field with tag %d (0x%x) encountered", - tif->tif_name, dp->tdir_tag, dp->tdir_tag, - dp->tdir_type); - - TIFFMergeFieldInfo(tif, - _TIFFCreateAnonFieldInfo(tif, - dp->tdir_tag, - (TIFFDataType)dp->tdir_type), - 1); + tif->tif_name, dp->tdir_tag, dp->tdir_tag); + if (!_TIFFMergeFieldInfo(tif, + _TIFFCreateAnonFieldInfo(tif, + dp->tdir_tag, + (TIFFDataType) dp->tdir_type), + 1)) + { + TIFFWarningExt(tif->tif_clientdata, module, + "Registering anonymous field with tag %d (0x%x) failed", + dp->tdir_tag, dp->tdir_tag); + goto ignore; + } fix = 0; while (fix < tif->tif_nfields && @@ -836,17 +858,22 @@ TIFFReadCustomDirectory(TIFF* tif, toff_t diroff, goto ignore; } - (void) TIFFFetchNormalTag(tif, dp); + /* + * EXIF tags which need to be specifically processed. + */ + switch (dp->tdir_tag) { + case EXIFTAG_SUBJECTDISTANCE: + (void) TIFFFetchSubjectDistance(tif, dp); + break; + default: + (void) TIFFFetchNormalTag(tif, dp); + break; + } } if (dir) _TIFFfree(dir); return 1; - -bad: - if (dir) - _TIFFfree(dir); - return 0; } /* @@ -868,15 +895,18 @@ EstimateStripByteCounts(TIFF* tif, TIFFDirEntry* dir, uint16 dircount) { static const char module[] = "EstimateStripByteCounts"; - register TIFFDirEntry *dp; - register TIFFDirectory *td = &tif->tif_dir; - uint16 i; + TIFFDirEntry *dp; + TIFFDirectory *td = &tif->tif_dir; + uint32 strip; if (td->td_stripbytecount) _TIFFfree(td->td_stripbytecount); td->td_stripbytecount = (uint32*) _TIFFCheckMalloc(tif, td->td_nstrips, sizeof (uint32), "for \"StripByteCounts\" array"); + if( td->td_stripbytecount == NULL ) + return -1; + if (td->td_compression != COMPRESSION_NONE) { uint32 space = (uint32)(sizeof (TIFFHeader) + sizeof (uint16) @@ -902,8 +932,8 @@ EstimateStripByteCounts(TIFF* tif, TIFFDirEntry* dir, uint16 dircount) space = filesize - space; if (td->td_planarconfig == PLANARCONFIG_SEPARATE) space /= td->td_samplesperpixel; - for (i = 0; i < td->td_nstrips; i++) - td->td_stripbytecount[i] = space; + for (strip = 0; strip < td->td_nstrips; strip++) + td->td_stripbytecount[strip] = space; /* * This gross hack handles the case were the offset to * the last strip is past the place where we think the strip @@ -911,16 +941,21 @@ EstimateStripByteCounts(TIFF* tif, TIFFDirEntry* dir, uint16 dircount) * it's safe to assume that we've overestimated the amount * of data in the strip and trim this number back accordingly. */ - i--; - if (((toff_t)(td->td_stripoffset[i]+td->td_stripbytecount[i])) - > filesize) - td->td_stripbytecount[i] = - filesize - td->td_stripoffset[i]; + strip--; + if (((toff_t)(td->td_stripoffset[strip]+ + td->td_stripbytecount[strip])) > filesize) + td->td_stripbytecount[strip] = + filesize - td->td_stripoffset[strip]; + } else if (isTiled(tif)) { + uint32 bytespertile = TIFFTileSize(tif); + + for (strip = 0; strip < td->td_nstrips; strip++) + td->td_stripbytecount[strip] = bytespertile; } else { uint32 rowbytes = TIFFScanlineSize(tif); uint32 rowsperstrip = td->td_imagelength/td->td_stripsperimage; - for (i = 0; i < td->td_nstrips; i++) - td->td_stripbytecount[i] = rowbytes*rowsperstrip; + for (strip = 0; strip < td->td_nstrips; strip++) + td->td_stripbytecount[strip] = rowbytes * rowsperstrip; } TIFFSetFieldBit(tif, FIELD_STRIPBYTECOUNTS); if (!TIFFFieldSet(tif, FIELD_ROWSPERSTRIP)) @@ -939,23 +974,65 @@ MissingRequired(TIFF* tif, const char* tagname) } /* - * Check the count field of a directory - * entry against a known value. The caller - * is expected to skip/ignore the tag if - * there is a mismatch. + * Check the directory offset against the list of already seen directory + * offsets. This is a trick to prevent IFD looping. The one can create TIFF + * file with looped directory pointers. We will maintain a list of already + * seen directories and check every IFD offset against that list. + */ +static int +TIFFCheckDirOffset(TIFF* tif, toff_t diroff) +{ + uint16 n; + + if (diroff == 0) /* no more directories */ + return 0; + + for (n = 0; n < tif->tif_dirnumber && tif->tif_dirlist; n++) { + if (tif->tif_dirlist[n] == diroff) + return 0; + } + + tif->tif_dirnumber++; + + if (tif->tif_dirnumber > tif->tif_dirlistsize) { + toff_t* new_dirlist; + + /* + * XXX: Reduce memory allocation granularity of the dirlist + * array. + */ + new_dirlist = (toff_t *)_TIFFCheckRealloc(tif, + tif->tif_dirlist, + tif->tif_dirnumber, + 2 * sizeof(toff_t), + "for IFD list"); + if (!new_dirlist) + return 0; + tif->tif_dirlistsize = 2 * tif->tif_dirnumber; + tif->tif_dirlist = new_dirlist; + } + + tif->tif_dirlist[tif->tif_dirnumber - 1] = diroff; + + return 1; +} + +/* + * Check the count field of a directory entry against a known value. The + * caller is expected to skip/ignore the tag if there is a mismatch. */ static int CheckDirCount(TIFF* tif, TIFFDirEntry* dir, uint32 count) { if (count > dir->tdir_count) { TIFFWarningExt(tif->tif_clientdata, tif->tif_name, - "incorrect count for field \"%s\" (%lu, expecting %lu); tag ignored", + "incorrect count for field \"%s\" (%u, expecting %u); tag ignored", _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name, dir->tdir_count, count); return (0); } else if (count < dir->tdir_count) { TIFFWarningExt(tif->tif_clientdata, tif->tif_name, - "incorrect count for field \"%s\" (%lu, expecting %lu); tag trimmed", + "incorrect count for field \"%s\" (%u, expecting %u); tag trimmed", _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name, dir->tdir_count, count); return (1); @@ -964,16 +1041,128 @@ CheckDirCount(TIFF* tif, TIFFDirEntry* dir, uint32 count) } /* + * Read IFD structure from the specified offset. If the pointer to + * nextdiroff variable has been specified, read it too. Function returns a + * number of fields in the directory or 0 if failed. + */ +static uint16 +TIFFFetchDirectory(TIFF* tif, toff_t diroff, TIFFDirEntry **pdir, + toff_t *nextdiroff) +{ + static const char module[] = "TIFFFetchDirectory"; + + TIFFDirEntry *dir; + uint16 dircount; + + assert(pdir); + + tif->tif_diroff = diroff; + if (nextdiroff) + *nextdiroff = 0; + if (!isMapped(tif)) { + if (!SeekOK(tif, tif->tif_diroff)) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Seek error accessing TIFF directory", + tif->tif_name); + return 0; + } + if (!ReadOK(tif, &dircount, sizeof (uint16))) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Can not read TIFF directory count", + tif->tif_name); + return 0; + } + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabShort(&dircount); + dir = (TIFFDirEntry *)_TIFFCheckMalloc(tif, dircount, + sizeof (TIFFDirEntry), + "to read TIFF directory"); + if (dir == NULL) + return 0; + if (!ReadOK(tif, dir, dircount*sizeof (TIFFDirEntry))) { + TIFFErrorExt(tif->tif_clientdata, module, + "%.100s: Can not read TIFF directory", + tif->tif_name); + _TIFFfree(dir); + return 0; + } + /* + * Read offset to next directory for sequential scans if + * needed. + */ + if (nextdiroff) + (void) ReadOK(tif, nextdiroff, sizeof(uint32)); + } else { + toff_t off = tif->tif_diroff; + + /* + * Check for integer overflow when validating the dir_off, + * otherwise a very high offset may cause an OOB read and + * crash the client. Make two comparisons instead of + * + * off + sizeof(uint16) > tif->tif_size + * + * to avoid overflow. + */ + if (tif->tif_size < sizeof (uint16) || + off > tif->tif_size - sizeof(uint16)) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Can not read TIFF directory count", + tif->tif_name); + return 0; + } else { + _TIFFmemcpy(&dircount, tif->tif_base + off, + sizeof(uint16)); + } + off += sizeof (uint16); + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabShort(&dircount); + dir = (TIFFDirEntry *)_TIFFCheckMalloc(tif, dircount, + sizeof(TIFFDirEntry), + "to read TIFF directory"); + if (dir == NULL) + return 0; + if (off + dircount * sizeof (TIFFDirEntry) > tif->tif_size) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Can not read TIFF directory", + tif->tif_name); + _TIFFfree(dir); + return 0; + } else { + _TIFFmemcpy(dir, tif->tif_base + off, + dircount * sizeof(TIFFDirEntry)); + } + if (nextdiroff) { + off += dircount * sizeof (TIFFDirEntry); + if (off + sizeof (uint32) <= tif->tif_size) { + _TIFFmemcpy(nextdiroff, tif->tif_base + off, + sizeof (uint32)); + } + } + } + if (nextdiroff && tif->tif_flags & TIFF_SWAB) + TIFFSwabLong(nextdiroff); + *pdir = dir; + return dircount; +} + +/* * Fetch a contiguous directory item. */ static tsize_t TIFFFetchData(TIFF* tif, TIFFDirEntry* dir, char* cp) { - int w = TIFFDataWidth((TIFFDataType) dir->tdir_type); - tsize_t cc = dir->tdir_count * w; + uint32 w = TIFFDataWidth((TIFFDataType) dir->tdir_type); + /* + * FIXME: butecount should have tsize_t type, but for now libtiff + * defines tsize_t as a signed 32-bit integer and we are losing + * ability to read arrays larger than 2^31 bytes. So we are using + * uint32 instead of tsize_t here. + */ + uint32 cc = dir->tdir_count * w; /* Check for overflow. */ - if (!dir->tdir_count || !w || cc / w != (tsize_t)dir->tdir_count) + if (!dir->tdir_count || !w || cc / w != dir->tdir_count) goto bad; if (!isMapped(tif)) { @@ -983,9 +1172,9 @@ TIFFFetchData(TIFF* tif, TIFFDirEntry* dir, char* cp) goto bad; } else { /* Check for overflow. */ - if ((tsize_t)dir->tdir_offset + cc < (tsize_t)dir->tdir_offset - || (tsize_t)dir->tdir_offset + cc < cc - || (tsize_t)dir->tdir_offset + cc > (tsize_t)tif->tif_size) + if (dir->tdir_offset + cc < dir->tdir_offset + || dir->tdir_offset + cc < cc + || dir->tdir_offset + cc > tif->tif_size) goto bad; _TIFFmemcpy(cp, tif->tif_base + dir->tdir_offset, cc); } @@ -1041,7 +1230,7 @@ cvtRational(TIFF* tif, TIFFDirEntry* dir, uint32 num, uint32 denom, float* rv) { if (denom == 0) { TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "%s: Rational with zero denominator (num = %lu)", + "%s: Rational with zero denominator (num = %u)", _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name, num); return (0); } else { @@ -1054,9 +1243,8 @@ cvtRational(TIFF* tif, TIFFDirEntry* dir, uint32 num, uint32 denom, float* rv) } /* - * Fetch a rational item from the file - * at offset off and return the value - * as a floating point number. + * Fetch a rational item from the file at offset off and return the value as a + * floating point number. */ static float TIFFFetchRational(TIFF* tif, TIFFDirEntry* dir) @@ -1069,9 +1257,8 @@ TIFFFetchRational(TIFF* tif, TIFFDirEntry* dir) } /* - * Fetch a single floating point value - * from the offset field and return it - * as a native float. + * Fetch a single floating point value from the offset field and return it as + * a native float. */ static float TIFFFetchFloat(TIFF* tif, TIFFDirEntry* dir) @@ -1159,6 +1346,18 @@ TIFFFetchShortArray(TIFF* tif, TIFFDirEntry* dir, uint16* v) static int TIFFFetchShortPair(TIFF* tif, TIFFDirEntry* dir) { + /* + * Prevent overflowing the v stack arrays below by performing a sanity + * check on tdir_count, this should never be greater than two. + */ + if (dir->tdir_count > 2) { + TIFFWarningExt(tif->tif_clientdata, tif->tif_name, + "unexpected count for field \"%s\", %u, expected 2; ignored", + _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name, + dir->tdir_count); + return 0; + } + switch (dir->tdir_type) { case TIFF_BYTE: case TIFF_SBYTE: @@ -1251,15 +1450,13 @@ TIFFFetchDoubleArray(TIFF* tif, TIFFDirEntry* dir, double* v) } /* - * Fetch an array of ANY values. The actual values are - * returned as doubles which should be able hold all the - * types. Yes, there really should be an tany_t to avoid - * this potential non-portability ... Note in particular - * that we assume that the double return value vector is - * large enough to read in any fundamental type. We use - * that vector as a buffer to read in the base type vector - * and then convert it in place to double (from end - * to front of course). + * Fetch an array of ANY values. The actual values are returned as doubles + * which should be able hold all the types. Yes, there really should be an + * tany_t to avoid this potential non-portability ... Note in particular that + * we assume that the double return value vector is large enough to read in + * any fundamental type. We use that vector as a buffer to read in the base + * type vector and then convert it in place to double (from end to front of + * course). */ static int TIFFFetchAnyArray(TIFF* tif, TIFFDirEntry* dir, double* v) @@ -1510,10 +1707,10 @@ TIFFFetchPerSampleShorts(TIFF* tif, TIFFDirEntry* dir, uint16* pl) for (i = 1; i < check_count; i++) if (v[i] != v[0]) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Cannot handle different per-sample values for field \"%s\"", - _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name); - goto bad; + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Cannot handle different per-sample values for field \"%s\"", + _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name); + goto bad; } *pl = v[0]; status = 1; @@ -1551,10 +1748,10 @@ TIFFFetchPerSampleLongs(TIFF* tif, TIFFDirEntry* dir, uint32* pl) check_count = samples; for (i = 1; i < check_count; i++) if (v[i] != v[0]) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Cannot handle different per-sample values for field \"%s\"", - _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name); - goto bad; + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Cannot handle different per-sample values for field \"%s\"", + _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name); + goto bad; } *pl = v[0]; status = 1; @@ -1591,10 +1788,10 @@ TIFFFetchPerSampleAnys(TIFF* tif, TIFFDirEntry* dir, double* pl) for (i = 1; i < check_count; i++) if (v[i] != v[0]) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Cannot handle different per-sample values for field \"%s\"", - _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name); - goto bad; + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Cannot handle different per-sample values for field \"%s\"", + _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name); + goto bad; } *pl = v[0]; status = 1; @@ -1706,11 +1903,34 @@ TIFFFetchRefBlackWhite(TIFF* tif, TIFFDirEntry* dir) } /* - * Replace a single strip (tile) of uncompressed data by - * multiple strips (tiles), each approximately 8Kbytes. - * This is useful for dealing with large images or - * for dealing with machines with a limited amount - * memory. + * Fetch and set the SubjectDistance EXIF tag. + */ +static int +TIFFFetchSubjectDistance(TIFF* tif, TIFFDirEntry* dir) +{ + uint32 l[2]; + float v; + int ok = 0; + + if (TIFFFetchData(tif, dir, (char *)l) + && cvtRational(tif, dir, l[0], l[1], &v)) { + /* + * XXX: Numerator 0xFFFFFFFF means that we have infinite + * distance. Indicate that with a negative floating point + * SubjectDistance value. + */ + ok = TIFFSetField(tif, dir->tdir_tag, + (l[0] != 0xFFFFFFFF) ? v : -v); + } + + return ok; +} + +/* + * Replace a single strip (tile) of uncompressed data by multiple strips + * (tiles), each approximately STRIP_SIZE_DEFAULT bytes. This is useful for + * dealing with large images or for dealing with machines with a limited + * amount memory. */ static void ChopUpSingleUncompressedStrip(TIFF* tif) @@ -1752,8 +1972,8 @@ ChopUpSingleUncompressedStrip(TIFF* tif) "for chopped \"StripOffsets\" array"); if (newcounts == NULL || newoffsets == NULL) { /* - * Unable to allocate new strip information, give - * up and use the original one strip information. + * Unable to allocate new strip information, give up and use + * the original one strip information. */ if (newcounts != NULL) _TIFFfree(newcounts); @@ -1766,7 +1986,7 @@ ChopUpSingleUncompressedStrip(TIFF* tif) * that reflect the broken-up format. */ for (strip = 0; strip < nstrips; strip++) { - if (stripbytes > (tsize_t) bytecount) + if ((uint32)stripbytes > bytecount) stripbytes = bytecount; newcounts[strip] = stripbytes; newoffsets[strip] = offset; diff --git a/src/libtiff/tif_dirwrite.c b/src/libtiff/tif_dirwrite.c index d775354..7d5ca71 100644 --- a/src/libtiff/tif_dirwrite.c +++ b/src/libtiff/tif_dirwrite.c @@ -1,4 +1,4 @@ -/* $Id: tif_dirwrite.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_dirwrite.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -100,31 +100,39 @@ _TIFFWriteDirectory(TIFF* tif, int done) */ if (done) { - if (tif->tif_flags & TIFF_POSTENCODE) { - tif->tif_flags &= ~TIFF_POSTENCODE; - if (!(*tif->tif_postencode)(tif)) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + tsize_t orig_rawcc = tif->tif_rawcc; + + if (tif->tif_flags & TIFF_POSTENCODE) { + tif->tif_flags &= ~TIFF_POSTENCODE; + if (!(*tif->tif_postencode)(tif)) { + TIFFErrorExt(tif->tif_clientdata, + tif->tif_name, "Error post-encoding before directory write"); - return (0); - } - } - (*tif->tif_close)(tif); /* shutdown encoder */ - /* - * Flush any data that might have been written - * by the compression close+cleanup routines. - */ - if (tif->tif_rawcc > 0 && !TIFFFlushData1(tif)) { + return (0); + } + } + (*tif->tif_close)(tif); /* shutdown encoder */ + /* + * Flush any data that might have been written + * by the compression close+cleanup routines. But + * be careful not to write stuff if we didn't add data + * in the previous steps as the "rawcc" data may well be + * a previously read tile/strip in mixed read/write mode. + */ + if (tif->tif_rawcc > 0 && tif->tif_rawcc != orig_rawcc + && (tif->tif_flags & TIFF_BEENWRITING) != 0 + && !TIFFFlushData1(tif)) { TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Error flushing data before directory write"); - return (0); - } - if ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata) { - _TIFFfree(tif->tif_rawdata); - tif->tif_rawdata = NULL; - tif->tif_rawcc = 0; - tif->tif_rawdatasize = 0; - } - tif->tif_flags &= ~(TIFF_BEENWRITING|TIFF_BUFFERSETUP); + "Error flushing data before directory write"); + return (0); + } + if ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata) { + _TIFFfree(tif->tif_rawdata); + tif->tif_rawdata = NULL; + tif->tif_rawcc = 0; + tif->tif_rawdatasize = 0; + } + tif->tif_flags &= ~(TIFF_BEENWRITING|TIFF_BUFFERSETUP); } td = &tif->tif_dir; @@ -137,12 +145,12 @@ _TIFFWriteDirectory(TIFF* tif, int done) for (b = 0; b <= FIELD_LAST; b++) if (TIFFFieldSet(tif, b) && b != FIELD_CUSTOM) nfields += (b < FIELD_SUBFILETYPE ? 2 : 1); - nfields += td->td_customValueCount; + nfields += td->td_customValueCount; dirsize = nfields * sizeof (TIFFDirEntry); data = (char*) _TIFFmalloc(dirsize); if (data == NULL) { TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Cannot write directory, out of space"); + "Cannot write directory, out of space"); return (0); } /* @@ -176,30 +184,29 @@ _TIFFWriteDirectory(TIFF* tif, int done) for (fi = 0, nfi = tif->tif_nfields; nfi > 0; nfi--, fi++) { const TIFFFieldInfo* fip = tif->tif_fieldinfo[fi]; - /* - ** For custom fields, we test to see if the custom field - ** is set or not. For normal fields, we just use the - ** FieldSet test. - */ - if( fip->field_bit == FIELD_CUSTOM ) - { - int ci, is_set = FALSE; + /* + * For custom fields, we test to see if the custom field + * is set or not. For normal fields, we just use the + * FieldSet test. + */ + if( fip->field_bit == FIELD_CUSTOM ) + { + int ci, is_set = FALSE; - for( ci = 0; ci < td->td_customValueCount; ci++ ) - is_set |= (td->td_customValues[ci].info == fip); + for( ci = 0; ci < td->td_customValueCount; ci++ ) + is_set |= (td->td_customValues[ci].info == fip); - if( !is_set ) - continue; - } + if( !is_set ) + continue; + } else if (!FieldSet(fields, fip->field_bit)) - continue; - + continue; - /* - ** Handle other fields. - */ + /* + * Handle other fields. + */ switch (fip->field_bit) - { + { case FIELD_STRIPOFFSETS: /* * We use one field bit for both strip and tile @@ -234,8 +241,7 @@ _TIFFWriteDirectory(TIFF* tif, int done) dir->tdir_tag = (uint16) tag; dir->tdir_type = (uint16) TIFF_LONG; dir->tdir_count = (uint32) td->td_nstrips; - if (!TIFFWriteLongArray(tif, dir, - td->td_stripbytecount)) + if (!TIFFWriteLongArray(tif, dir, td->td_stripbytecount)) goto bad; break; case FIELD_ROWSPERSTRIP: @@ -346,8 +352,8 @@ _TIFFWriteDirectory(TIFF* tif, int done) } dir++; - if( fip->field_bit != FIELD_CUSTOM ) - ResetFieldBit(fields, fip->field_bit); + if( fip->field_bit != FIELD_CUSTOM ) + ResetFieldBit(fields, fip->field_bit); } /* @@ -376,15 +382,18 @@ _TIFFWriteDirectory(TIFF* tif, int done) } (void) TIFFSeekFile(tif, tif->tif_diroff, SEEK_SET); if (!WriteOK(tif, &dircount, sizeof (dircount))) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Error writing directory count"); + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Error writing directory count"); goto bad; } if (!WriteOK(tif, data, dirsize)) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Error writing directory contents"); + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Error writing directory contents"); goto bad; } - if (!WriteOK(tif, &diroff, sizeof (diroff))) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Error writing directory link"); + if (!WriteOK(tif, &diroff, sizeof (uint32))) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Error writing directory link"); goto bad; } if (done) { @@ -430,6 +439,133 @@ TIFFCheckpointDirectory(TIFF* tif) return rc; } +static int +_TIFFWriteCustomDirectory(TIFF* tif, toff_t *pdiroff) +{ + uint16 dircount; + uint32 nfields; + tsize_t dirsize; + char* data; + TIFFDirEntry* dir; + TIFFDirectory* td; + unsigned long b, fields[FIELD_SETLONGS]; + int fi, nfi; + + if (tif->tif_mode == O_RDONLY) + return (1); + + td = &tif->tif_dir; + /* + * Size the directory so that we can calculate + * offsets for the data items that aren't kept + * in-place in each field. + */ + nfields = 0; + for (b = 0; b <= FIELD_LAST; b++) + if (TIFFFieldSet(tif, b) && b != FIELD_CUSTOM) + nfields += (b < FIELD_SUBFILETYPE ? 2 : 1); + nfields += td->td_customValueCount; + dirsize = nfields * sizeof (TIFFDirEntry); + data = (char*) _TIFFmalloc(dirsize); + if (data == NULL) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Cannot write directory, out of space"); + return (0); + } + /* + * Put the directory at the end of the file. + */ + tif->tif_diroff = (TIFFSeekFile(tif, (toff_t) 0, SEEK_END)+1) &~ 1; + tif->tif_dataoff = (toff_t)( + tif->tif_diroff + sizeof (uint16) + dirsize + sizeof (toff_t)); + if (tif->tif_dataoff & 1) + tif->tif_dataoff++; + (void) TIFFSeekFile(tif, tif->tif_dataoff, SEEK_SET); + dir = (TIFFDirEntry*) data; + /* + * Setup external form of directory + * entries and write data items. + */ + _TIFFmemcpy(fields, td->td_fieldsset, sizeof (fields)); + + for (fi = 0, nfi = tif->tif_nfields; nfi > 0; nfi--, fi++) { + const TIFFFieldInfo* fip = tif->tif_fieldinfo[fi]; + + /* + * For custom fields, we test to see if the custom field + * is set or not. For normal fields, we just use the + * FieldSet test. + */ + if( fip->field_bit == FIELD_CUSTOM ) + { + int ci, is_set = FALSE; + + for( ci = 0; ci < td->td_customValueCount; ci++ ) + is_set |= (td->td_customValues[ci].info == fip); + + if( !is_set ) + continue; + } + else if (!FieldSet(fields, fip->field_bit)) + continue; + + if( fip->field_bit != FIELD_CUSTOM ) + ResetFieldBit(fields, fip->field_bit); + } + + /* + * Write directory. + */ + dircount = (uint16) nfields; + *pdiroff = (uint32) tif->tif_nextdiroff; + if (tif->tif_flags & TIFF_SWAB) { + /* + * The file's byte order is opposite to the + * native machine architecture. We overwrite + * the directory information with impunity + * because it'll be released below after we + * write it to the file. Note that all the + * other tag construction routines assume that + * we do this byte-swapping; i.e. they only + * byte-swap indirect data. + */ + for (dir = (TIFFDirEntry*) data; dircount; dir++, dircount--) { + TIFFSwabArrayOfShort(&dir->tdir_tag, 2); + TIFFSwabArrayOfLong(&dir->tdir_count, 2); + } + dircount = (uint16) nfields; + TIFFSwabShort(&dircount); + TIFFSwabLong(pdiroff); + } + (void) TIFFSeekFile(tif, tif->tif_diroff, SEEK_SET); + if (!WriteOK(tif, &dircount, sizeof (dircount))) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Error writing directory count"); + goto bad; + } + if (!WriteOK(tif, data, dirsize)) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Error writing directory contents"); + goto bad; + } + if (!WriteOK(tif, pdiroff, sizeof (uint32))) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Error writing directory link"); + goto bad; + } + _TIFFfree(data); + return (1); +bad: + _TIFFfree(data); + return (0); +} + +int +TIFFWriteCustomDirectory(TIFF* tif, toff_t *pdiroff) +{ + return _TIFFWriteCustomDirectory(tif, pdiroff); +} + /* * Process tags that are not special cased. */ @@ -581,7 +717,12 @@ TIFFWriteNormalTag(TIFF* tif, TIFFDirEntry* dir, const TIFFFieldInfo* fip) { char* cp; if (fip->field_passcount) - TIFFGetField(tif, fip->field_tag, &wc, &cp); + { + if( wc == (uint16) TIFF_VARIABLE2 ) + TIFFGetField(tif, fip->field_tag, &wc2, &cp); + else + TIFFGetField(tif, fip->field_tag, &wc, &cp); + } else TIFFGetField(tif, fip->field_tag, &cp); @@ -786,12 +927,27 @@ TIFFWriteShortTable(TIFF* tif, static int TIFFWriteByteArray(TIFF* tif, TIFFDirEntry* dir, char* cp) { - if (dir->tdir_count > 4) { - if (!TIFFWriteData(tif, dir, cp)) - return (0); + if (dir->tdir_count <= 4) { + if (tif->tif_header.tiff_magic == TIFF_BIGENDIAN) { + dir->tdir_offset = (uint32)cp[0] << 24; + if (dir->tdir_count >= 2) + dir->tdir_offset |= (uint32)cp[1] << 16; + if (dir->tdir_count >= 3) + dir->tdir_offset |= (uint32)cp[2] << 8; + if (dir->tdir_count == 4) + dir->tdir_offset |= cp[3]; + } else { + dir->tdir_offset = cp[0]; + if (dir->tdir_count >= 2) + dir->tdir_offset |= (uint32) cp[1] << 8; + if (dir->tdir_count >= 3) + dir->tdir_offset |= (uint32) cp[2] << 16; + if (dir->tdir_count == 4) + dir->tdir_offset |= (uint32) cp[3] << 24; + } + return 1; } else - _TIFFmemcpy(&dir->tdir_offset, cp, dir->tdir_count); - return (1); + return TIFFWriteData(tif, dir, cp); } /* @@ -803,13 +959,13 @@ TIFFWriteShortArray(TIFF* tif, TIFFDirEntry* dir, uint16* v) { if (dir->tdir_count <= 2) { if (tif->tif_header.tiff_magic == TIFF_BIGENDIAN) { - dir->tdir_offset = (uint32) ((long) v[0] << 16); + dir->tdir_offset = (uint32) v[0] << 16; if (dir->tdir_count == 2) dir->tdir_offset |= v[1] & 0xffff; } else { dir->tdir_offset = v[0] & 0xffff; if (dir->tdir_count == 2) - dir->tdir_offset |= (long) v[1] << 16; + dir->tdir_offset |= (uint32) v[1] << 16; } return (1); } else @@ -854,10 +1010,11 @@ TIFFWriteRationalArray(TIFF* tif, TIFFDirEntry* dir, float* v) if (fv < 0) { if (dir->tdir_type == TIFF_RATIONAL) { - TIFFWarningExt(tif->tif_clientdata, tif->tif_name, + TIFFWarningExt(tif->tif_clientdata, + tif->tif_name, "\"%s\": Information lost writing value (%g) as (unsigned) RATIONAL", _TIFFFieldWithTag(tif,dir->tdir_tag)->field_name, - fv); + fv); fv = 0; } else fv = -fv, sign = -1; @@ -914,7 +1071,7 @@ TIFFWriteAnyArray(TIFF* tif, w = (char*) _TIFFmalloc(n * TIFFDataWidth(type)); if (w == NULL) { TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "No space to write array"); + "No space to write array"); return (0); } } @@ -988,7 +1145,10 @@ TIFFWriteAnyArray(TIFF* tif, } break; case TIFF_DOUBLE: - return (TIFFWriteDoubleArray(tif, dir, v)); + { + if( !TIFFWriteDoubleArray(tif, dir, v)) + goto out; + } default: /* TIFF_NOTYPE */ /* TIFF_ASCII */ @@ -1073,8 +1233,9 @@ TIFFWriteData(TIFF* tif, TIFFDirEntry* dir, char* cp) tif->tif_dataoff += (cc + 1) & ~1; return (1); } - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Error writing data for field \"%s\"", - _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name); + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Error writing data for field \"%s\"", + _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name); return (0); } @@ -1110,7 +1271,8 @@ TIFFRewriteDirectory( TIFF *tif ) if (!WriteOK(tif, &(tif->tif_header.tiff_diroff), sizeof (tif->tif_diroff))) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Error updating TIFF header"); + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Error updating TIFF header"); return (0); } } @@ -1124,7 +1286,8 @@ TIFFRewriteDirectory( TIFF *tif ) if (!SeekOK(tif, nextdir) || !ReadOK(tif, &dircount, sizeof (dircount))) { - TIFFErrorExt(tif->tif_clientdata, module, "Error fetching directory count"); + TIFFErrorExt(tif->tif_clientdata, module, + "Error fetching directory count"); return (0); } if (tif->tif_flags & TIFF_SWAB) @@ -1132,7 +1295,8 @@ TIFFRewriteDirectory( TIFF *tif ) (void) TIFFSeekFile(tif, dircount * sizeof (TIFFDirEntry), SEEK_CUR); if (!ReadOK(tif, &nextdir, sizeof (nextdir))) { - TIFFErrorExt(tif->tif_clientdata, module, "Error fetching directory link"); + TIFFErrorExt(tif->tif_clientdata, module, + "Error fetching directory link"); return (0); } if (tif->tif_flags & TIFF_SWAB) @@ -1142,7 +1306,8 @@ TIFFRewriteDirectory( TIFF *tif ) (void) TIFFSeekFile(tif, off - (toff_t)sizeof(nextdir), SEEK_SET); tif->tif_diroff = 0; if (!WriteOK(tif, &(tif->tif_diroff), sizeof (nextdir))) { - TIFFErrorExt(tif->tif_clientdata, module, "Error writing directory link"); + TIFFErrorExt(tif->tif_clientdata, module, + "Error writing directory link"); return (0); } } @@ -1156,8 +1321,7 @@ TIFFRewriteDirectory( TIFF *tif ) /* - * Link the current directory into the - * directory chain for the file. + * Link the current directory into the directory chain for the file. */ static int TIFFLinkDirectory(TIFF* tif) @@ -1178,8 +1342,8 @@ TIFFLinkDirectory(TIFF* tif) (void) TIFFSeekFile(tif, tif->tif_subifdoff, SEEK_SET); if (!WriteOK(tif, &diroff, sizeof (diroff))) { TIFFErrorExt(tif->tif_clientdata, module, - "%s: Error writing SubIFD directory link", - tif->tif_name); + "%s: Error writing SubIFD directory link", + tif->tif_name); return (0); } /* @@ -1203,7 +1367,8 @@ TIFFLinkDirectory(TIFF* tif) (toff_t)(TIFF_MAGIC_SIZE+TIFF_VERSION_SIZE), SEEK_SET); if (!WriteOK(tif, &diroff, sizeof (diroff))) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Error writing TIFF header"); + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Error writing TIFF header"); return (0); } return (1); @@ -1217,7 +1382,8 @@ TIFFLinkDirectory(TIFF* tif) if (!SeekOK(tif, nextdir) || !ReadOK(tif, &dircount, sizeof (dircount))) { - TIFFErrorExt(tif->tif_clientdata, module, "Error fetching directory count"); + TIFFErrorExt(tif->tif_clientdata, module, + "Error fetching directory count"); return (0); } if (tif->tif_flags & TIFF_SWAB) @@ -1225,7 +1391,8 @@ TIFFLinkDirectory(TIFF* tif) (void) TIFFSeekFile(tif, dircount * sizeof (TIFFDirEntry), SEEK_CUR); if (!ReadOK(tif, &nextdir, sizeof (nextdir))) { - TIFFErrorExt(tif->tif_clientdata, module, "Error fetching directory link"); + TIFFErrorExt(tif->tif_clientdata, module, + "Error fetching directory link"); return (0); } if (tif->tif_flags & TIFF_SWAB) @@ -1234,7 +1401,8 @@ TIFFLinkDirectory(TIFF* tif) off = TIFFSeekFile(tif, 0, SEEK_CUR); /* get current offset */ (void) TIFFSeekFile(tif, off - (toff_t)sizeof(nextdir), SEEK_SET); if (!WriteOK(tif, &diroff, sizeof (diroff))) { - TIFFErrorExt(tif->tif_clientdata, module, "Error writing directory link"); + TIFFErrorExt(tif->tif_clientdata, module, + "Error writing directory link"); return (0); } return (1); diff --git a/src/libtiff/tif_dumpmode.c b/src/libtiff/tif_dumpmode.c index d58a98b..cc9f999 100644 --- a/src/libtiff/tif_dumpmode.c +++ b/src/libtiff/tif_dumpmode.c @@ -1,4 +1,4 @@ -/* $Header: /cvsroot/imtoolkit/im/src/libtiff/tif_dumpmode.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Header: /cvsroot/imtoolkit/im/src/libtiff/tif_dumpmode.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -45,7 +45,7 @@ DumpModeEncode(TIFF* tif, tidata_t pp, tsize_t cc, tsample_t s) if (tif->tif_rawcc + n > tif->tif_rawdatasize) n = tif->tif_rawdatasize - tif->tif_rawcc; - assert( n > 0 ); + assert( n > 0 ); /* * Avoid copy if client has setup raw @@ -71,6 +71,8 @@ static int DumpModeDecode(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s) { (void) s; +/* fprintf(stderr,"DumpModeDecode: scanline %ld, expected %ld bytes, got %ld bytes\n", */ +/* (long) tif->tif_row, (long) tif->tif_rawcc, (long) cc); */ if (tif->tif_rawcc < cc) { TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "DumpModeDecode: Not enough data for scanline %d", diff --git a/src/libtiff/tif_error.c b/src/libtiff/tif_error.c index 456e6f9..37dadf0 100644 --- a/src/libtiff/tif_error.c +++ b/src/libtiff/tif_error.c @@ -1,4 +1,4 @@ -/* $Header: /cvsroot/imtoolkit/im/src/libtiff/tif_error.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Header: /cvsroot/imtoolkit/im/src/libtiff/tif_error.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler diff --git a/src/libtiff/tif_extension.c b/src/libtiff/tif_extension.c index 0d32a07..39678d7 100644 --- a/src/libtiff/tif_extension.c +++ b/src/libtiff/tif_extension.c @@ -1,4 +1,4 @@ -/* $Header: /cvsroot/imtoolkit/im/src/libtiff/tif_extension.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Header: /cvsroot/imtoolkit/im/src/libtiff/tif_extension.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler diff --git a/src/libtiff/tif_fax3.c b/src/libtiff/tif_fax3.c index 96f5d13..3116900 100644 --- a/src/libtiff/tif_fax3.c +++ b/src/libtiff/tif_fax3.c @@ -1,4 +1,4 @@ -/* $Id: tif_fax3.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_fax3.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1990-1997 Sam Leffler @@ -63,6 +63,7 @@ typedef struct { char* faxdcs; /* Table 2/T.30 encoded session params */ TIFFVGetMethod vgetparent; /* super-class method */ TIFFVSetMethod vsetparent; /* super-class method */ + TIFFPrintMethod printdir; /* super-class method */ } Fax3BaseState; #define Fax3State(tif) ((Fax3BaseState*) (tif)->tif_data) @@ -85,6 +86,8 @@ typedef struct { unsigned char* refline; /* reference line for 2d decoding */ int k; /* #rows left that can be 2d encoded */ int maxk; /* max #rows that can be 2d encoded */ + + int line; } Fax3CodecState; #define DecoderState(tif) ((Fax3CodecState*) Fax3State(tif)) #define EncoderState(tif) ((Fax3CodecState*) Fax3State(tif)) @@ -167,6 +170,7 @@ Fax3PreDecode(TIFF* tif, tsample_t s) sp->refruns[0] = (uint32) sp->b.rowpixels; sp->refruns[1] = 0; } + sp->line = 0; return (1); } @@ -179,46 +183,46 @@ Fax3PreDecode(TIFF* tif, tsample_t s) static void Fax3Unexpected(const char* module, TIFF* tif, uint32 line, uint32 a0) { - TIFFErrorExt(tif->tif_clientdata, module, "%s: Bad code word at line %lu of %s %lu (x %lu)", - tif->tif_name, (unsigned long) line, isTiled(tif) ? "tile" : "strip", - (unsigned long) (isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip), - (unsigned long) a0); + TIFFErrorExt(tif->tif_clientdata, module, "%s: Bad code word at line %u of %s %u (x %u)", + tif->tif_name, line, isTiled(tif) ? "tile" : "strip", + (isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip), + a0); } -#define unexpected(table, a0) Fax3Unexpected(module, tif, line, a0) +#define unexpected(table, a0) Fax3Unexpected(module, tif, sp->line, a0) static void Fax3Extension(const char* module, TIFF* tif, uint32 line, uint32 a0) { TIFFErrorExt(tif->tif_clientdata, module, - "%s: Uncompressed data (not supported) at line %lu of %s %lu (x %lu)", - tif->tif_name, (unsigned long) line, isTiled(tif) ? "tile" : "strip", - (unsigned long) (isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip), - (unsigned long) a0); + "%s: Uncompressed data (not supported) at line %u of %s %u (x %u)", + tif->tif_name, line, isTiled(tif) ? "tile" : "strip", + (isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip), + a0); } -#define extension(a0) Fax3Extension(module, tif, line, a0) +#define extension(a0) Fax3Extension(module, tif, sp->line, a0) static void Fax3BadLength(const char* module, TIFF* tif, uint32 line, uint32 a0, uint32 lastx) { - TIFFWarningExt(tif->tif_clientdata, module, "%s: %s at line %lu of %s %lu (got %lu, expected %lu)", - tif->tif_name, - a0 < lastx ? "Premature EOL" : "Line length mismatch", - (unsigned long) line, isTiled(tif) ? "tile" : "strip", - (unsigned long) (isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip), - (unsigned long) a0, lastx); + TIFFWarningExt(tif->tif_clientdata, module, "%s: %s at line %u of %s %u (got %u, expected %u)", + tif->tif_name, + a0 < lastx ? "Premature EOL" : "Line length mismatch", + line, isTiled(tif) ? "tile" : "strip", + (isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip), + a0, lastx); } -#define badlength(a0,lastx) Fax3BadLength(module, tif, line, a0, lastx) +#define badlength(a0,lastx) Fax3BadLength(module, tif, sp->line, a0, lastx) static void Fax3PrematureEOF(const char* module, TIFF* tif, uint32 line, uint32 a0) { - TIFFWarningExt(tif->tif_clientdata, module, "%s: Premature EOF at line %lu of %s %lu (x %lu)", + TIFFWarningExt(tif->tif_clientdata, module, "%s: Premature EOF at line %u of %s %u (x %u)", tif->tif_name, - (unsigned long) line, isTiled(tif) ? "tile" : "strip", - (unsigned long) (isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip), - (unsigned long) a0); + line, isTiled(tif) ? "tile" : "strip", + (isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip), + a0); } -#define prematureEOF(a0) Fax3PrematureEOF(module, tif, line, a0) +#define prematureEOF(a0) Fax3PrematureEOF(module, tif, sp->line, a0) #define Nop @@ -229,7 +233,6 @@ static int Fax3Decode1D(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) { DECLARE_STATE(tif, sp, "Fax3Decode1D"); - int line = 0; (void) s; CACHE_STATE(tif, sp); @@ -248,7 +251,7 @@ Fax3Decode1D(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) (*sp->fill)(buf, thisrun, pa, lastx); buf += sp->b.rowbytes; occ -= sp->b.rowbytes; - line++; + sp->line++; continue; EOF1D: /* premature EOF */ CLEANUP_RUNS(); @@ -269,7 +272,6 @@ static int Fax3Decode2D(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) { DECLARE_STATE_2D(tif, sp, "Fax3Decode2D"); - int line = 0; int is1D; /* current line is 1d/2d-encoded */ (void) s; @@ -302,7 +304,7 @@ Fax3Decode2D(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) SWAP(uint32*, sp->curruns, sp->refruns); buf += sp->b.rowbytes; occ -= sp->b.rowbytes; - line++; + sp->line++; continue; EOF2D: /* premature EOF */ CLEANUP_RUNS(); @@ -492,14 +494,14 @@ Fax3SetupState(TIFF* tif) ); nruns = needsRefLine ? 2*TIFFroundup(rowpixels,32) : rowpixels; - - dsp->runs = (uint32*) _TIFFCheckMalloc(tif, 2*nruns+3, sizeof (uint32), + nruns += 3; + dsp->runs = (uint32*) _TIFFCheckMalloc(tif, 2*nruns, sizeof (uint32), "for Group 3/4 run arrays"); if (dsp->runs == NULL) return (0); dsp->curruns = dsp->runs; if (needsRefLine) - dsp->refruns = dsp->runs + (nruns>>1); + dsp->refruns = dsp->runs + nruns; else dsp->refruns = NULL; if (td->td_compression == COMPRESSION_CCITTFAX3 @@ -718,6 +720,7 @@ Fax3PreEncode(TIFF* tif, tsample_t s) sp->k = sp->maxk-1; } else sp->k = sp->maxk = 0; + sp->line = 0; return (1); } @@ -773,7 +776,7 @@ static int32 find1span(unsigned char*, int32, int32); * table. The ``base'' of the bit string is supplied * along with the start+end bit indices. */ -inline static int32 +static int32 find0span(unsigned char* bp, int32 bs, int32 be) { int32 bits = be - bs; @@ -832,7 +835,7 @@ find0span(unsigned char* bp, int32 bs, int32 be) return (span); } -inline static int32 +static int32 find1span(unsigned char* bp, int32 bs, int32 be) { int32 bits = be - bs; @@ -1074,6 +1077,7 @@ Fax3Cleanup(TIFF* tif) tif->tif_tagmethods.vgetfield = sp->b.vgetparent; tif->tif_tagmethods.vsetfield = sp->b.vsetparent; + tif->tif_tagmethods.printdir = sp->b.printdir; if (sp->runs) _TIFFfree(sp->runs); @@ -1082,6 +1086,9 @@ Fax3Cleanup(TIFF* tif) if (Fax3State(tif)->subaddress) _TIFFfree(Fax3State(tif)->subaddress); + if (Fax3State(tif)->faxdcs) + _TIFFfree(Fax3State(tif)->faxdcs); + _TIFFfree(tif->tif_data); tif->tif_data = NULL; @@ -1136,6 +1143,7 @@ static int Fax3VSetField(TIFF* tif, ttag_t tag, va_list ap) { Fax3BaseState* sp = Fax3State(tif); + const TIFFFieldInfo* fip; assert(sp != 0); assert(sp->vsetparent != 0); @@ -1143,10 +1151,10 @@ Fax3VSetField(TIFF* tif, ttag_t tag, va_list ap) switch (tag) { case TIFFTAG_FAXMODE: sp->mode = va_arg(ap, int); - return (1); /* NB: pseudo tag */ + return 1; /* NB: pseudo tag */ case TIFFTAG_FAXFILLFUNC: DecoderState(tif)->fill = va_arg(ap, TIFFFaxFillFunc); - return (1); /* NB: pseudo tag */ + return 1; /* NB: pseudo tag */ case TIFFTAG_GROUP3OPTIONS: /* XXX: avoid reading options if compression mismatches. */ if (tif->tif_dir.td_compression == COMPRESSION_CCITTFAX3) @@ -1181,9 +1189,14 @@ Fax3VSetField(TIFF* tif, ttag_t tag, va_list ap) default: return (*sp->vsetparent)(tif, tag, ap); } - TIFFSetFieldBit(tif, _TIFFFieldWithTag(tif, tag)->field_bit); + + if ((fip = _TIFFFieldWithTag(tif, tag))) + TIFFSetFieldBit(tif, fip->field_bit); + else + return 0; + tif->tif_flags |= TIFF_DIRTYDIRECT; - return (1); + return 1; } static int @@ -1191,6 +1204,8 @@ Fax3VGetField(TIFF* tif, ttag_t tag, va_list ap) { Fax3BaseState* sp = Fax3State(tif); + assert(sp != 0); + switch (tag) { case TIFFTAG_FAXMODE: *va_arg(ap, int*) = sp->mode; @@ -1234,6 +1249,8 @@ Fax3PrintDir(TIFF* tif, FILE* fd, long flags) { Fax3BaseState* sp = Fax3State(tif); + assert(sp != 0); + (void) flags; if (TIFFFieldSet(tif,FIELD_OPTIONS)) { const char* sep = " "; @@ -1295,6 +1312,15 @@ InitCCITTFax3(TIFF* tif) Fax3BaseState* sp; /* + * Merge codec-specific tag information. + */ + if (!_TIFFMergeFieldInfo(tif, faxFieldInfo, N(faxFieldInfo))) { + TIFFErrorExt(tif->tif_clientdata, "InitCCITTFax3", + "Merging common CCITT Fax codec-specific tags failed"); + return 0; + } + + /* * Allocate state block so tag methods have storage to record values. */ tif->tif_data = (tidata_t) @@ -1310,14 +1336,13 @@ InitCCITTFax3(TIFF* tif) sp->rw_mode = tif->tif_mode; /* - * Merge codec-specific tag information and - * override parent get/set field methods. + * Override parent get/set field methods. */ - _TIFFMergeFieldInfo(tif, faxFieldInfo, N(faxFieldInfo)); sp->vgetparent = tif->tif_tagmethods.vgetfield; tif->tif_tagmethods.vgetfield = Fax3VGetField; /* hook for codec tags */ sp->vsetparent = tif->tif_tagmethods.vsetfield; tif->tif_tagmethods.vsetfield = Fax3VSetField; /* hook for codec tags */ + sp->printdir = tif->tif_tagmethods.printdir; tif->tif_tagmethods.printdir = Fax3PrintDir; /* hook for codec tags */ sp->groupoptions = 0; sp->recvparams = 0; @@ -1355,14 +1380,21 @@ TIFFInitCCITTFax3(TIFF* tif, int scheme) { (void) scheme; if (InitCCITTFax3(tif)) { - _TIFFMergeFieldInfo(tif, fax3FieldInfo, N(fax3FieldInfo)); + /* + * Merge codec-specific tag information. + */ + if (!_TIFFMergeFieldInfo(tif, fax3FieldInfo, N(fax3FieldInfo))) { + TIFFErrorExt(tif->tif_clientdata, "TIFFInitCCITTFax3", + "Merging CCITT Fax 3 codec-specific tags failed"); + return 0; + } /* * The default format is Class/F-style w/o RTC. */ return TIFFSetField(tif, TIFFTAG_FAXMODE, FAXMODE_CLASSF); } else - return (0); + return 01; } /* @@ -1378,7 +1410,6 @@ static int Fax4Decode(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) { DECLARE_STATE_2D(tif, sp, "Fax4Decode"); - int line = 0; (void) s; CACHE_STATE(tif, sp); @@ -1401,7 +1432,7 @@ Fax4Decode(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) SWAP(uint32*, sp->curruns, sp->refruns); buf += sp->b.rowbytes; occ -= sp->b.rowbytes; - line++; + sp->line++; continue; EOFG4: NeedBits16( 13, BADG4 ); @@ -1457,7 +1488,14 @@ TIFFInitCCITTFax4(TIFF* tif, int scheme) { (void) scheme; if (InitCCITTFax3(tif)) { /* reuse G3 support */ - _TIFFMergeFieldInfo(tif, fax4FieldInfo, N(fax4FieldInfo)); + /* + * Merge codec-specific tag information. + */ + if (!_TIFFMergeFieldInfo(tif, fax4FieldInfo, N(fax4FieldInfo))) { + TIFFErrorExt(tif->tif_clientdata, "TIFFInitCCITTFax4", + "Merging CCITT Fax 4 codec-specific tags failed"); + return 0; + } tif->tif_decoderow = Fax4Decode; tif->tif_decodestrip = Fax4Decode; @@ -1487,7 +1525,6 @@ Fax3DecodeRLE(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) { DECLARE_STATE(tif, sp, "Fax3DecodeRLE"); int mode = sp->b.mode; - int line = 0; (void) s; CACHE_STATE(tif, sp); @@ -1517,7 +1554,7 @@ Fax3DecodeRLE(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) } buf += sp->b.rowbytes; occ -= sp->b.rowbytes; - line++; + sp->line++; continue; EOFRLE: /* premature EOF */ (*sp->fill)(buf, thisrun, pa, lastx); diff --git a/src/libtiff/tif_fax3.h b/src/libtiff/tif_fax3.h index 99ced5f..7fd2205 100644 --- a/src/libtiff/tif_fax3.h +++ b/src/libtiff/tif_fax3.h @@ -1,4 +1,4 @@ -/* $Id: tif_fax3.h,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_fax3.h,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1990-1997 Sam Leffler diff --git a/src/libtiff/tif_flush.c b/src/libtiff/tif_flush.c index 140a58a..4893b9a 100644 --- a/src/libtiff/tif_flush.c +++ b/src/libtiff/tif_flush.c @@ -1,4 +1,4 @@ -/* $Header: /cvsroot/imtoolkit/im/src/libtiff/tif_flush.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Header: /cvsroot/imtoolkit/im/src/libtiff/tif_flush.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler diff --git a/src/libtiff/tif_getimage.c b/src/libtiff/tif_getimage.c index 251733c..862fdb2 100644 --- a/src/libtiff/tif_getimage.c +++ b/src/libtiff/tif_getimage.c @@ -1,4 +1,4 @@ -/* $Id: tif_getimage.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_getimage.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1991-1997 Sam Leffler @@ -32,14 +32,13 @@ #include "tiffiop.h" #include <stdio.h> -static int gtTileContig(TIFFRGBAImage*, uint32*, uint32, uint32); -static int gtTileSeparate(TIFFRGBAImage*, uint32*, uint32, uint32); -static int gtStripContig(TIFFRGBAImage*, uint32*, uint32, uint32); -static int gtStripSeparate(TIFFRGBAImage*, uint32*, uint32, uint32); -static int pickTileContigCase(TIFFRGBAImage*); -static int pickTileSeparateCase(TIFFRGBAImage*); - -static const char photoTag[] = "PhotometricInterpretation"; +static int gtTileContig(TIFFRGBAImage*, uint32*, uint32, uint32); +static int gtTileSeparate(TIFFRGBAImage*, uint32*, uint32, uint32); +static int gtStripContig(TIFFRGBAImage*, uint32*, uint32, uint32); +static int gtStripSeparate(TIFFRGBAImage*, uint32*, uint32, uint32); +static int PickContigCase(TIFFRGBAImage*); +static int PickSeparateCase(TIFFRGBAImage*); +static const char photoTag[] = "PhotometricInterpretation"; /* * Helper constants used in Orientation tag handling @@ -72,118 +71,122 @@ TIFFDisplay display_sRGB = { int TIFFRGBAImageOK(TIFF* tif, char emsg[1024]) { - TIFFDirectory* td = &tif->tif_dir; - uint16 photometric; - int colorchannels; + TIFFDirectory* td = &tif->tif_dir; + uint16 photometric; + int colorchannels; - if (!tif->tif_decodestatus) { - sprintf(emsg, "Sorry, requested compression method is not configured"); - return (0); - } - switch (td->td_bitspersample) { - case 1: case 2: case 4: - case 8: case 16: - break; - default: - sprintf(emsg, "Sorry, can not handle images with %d-bit samples", - td->td_bitspersample); - return (0); - } - colorchannels = td->td_samplesperpixel - td->td_extrasamples; - if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photometric)) { - switch (colorchannels) { - case 1: - photometric = PHOTOMETRIC_MINISBLACK; - break; - case 3: - photometric = PHOTOMETRIC_RGB; - break; - default: - sprintf(emsg, "Missing needed %s tag", photoTag); - return (0); - } - } - switch (photometric) { - case PHOTOMETRIC_MINISWHITE: - case PHOTOMETRIC_MINISBLACK: - case PHOTOMETRIC_PALETTE: - if (td->td_planarconfig == PLANARCONFIG_CONTIG - && td->td_samplesperpixel != 1 - && td->td_bitspersample < 8 ) { - sprintf(emsg, - "Sorry, can not handle contiguous data with %s=%d, " - "and %s=%d and Bits/Sample=%d", - photoTag, photometric, - "Samples/pixel", td->td_samplesperpixel, - td->td_bitspersample); - return (0); - } - /* - ** We should likely validate that any extra samples are either - ** to be ignored, or are alpha, and if alpha we should try to use - ** them. But for now we won't bother with this. - */ - break; - case PHOTOMETRIC_YCBCR: - if (td->td_planarconfig != PLANARCONFIG_CONTIG) { - sprintf(emsg, "Sorry, can not handle YCbCr images with %s=%d", - "Planarconfiguration", td->td_planarconfig); - return (0); + if (!tif->tif_decodestatus) { + sprintf(emsg, "Sorry, requested compression method is not configured"); + return (0); } - break; - case PHOTOMETRIC_RGB: - if (colorchannels < 3) { - sprintf(emsg, "Sorry, can not handle RGB image with %s=%d", - "Color channels", colorchannels); - return (0); + switch (td->td_bitspersample) { + case 1: + case 2: + case 4: + case 8: + case 16: + break; + default: + sprintf(emsg, "Sorry, can not handle images with %d-bit samples", + td->td_bitspersample); + return (0); } - break; - case PHOTOMETRIC_SEPARATED: - { - uint16 inkset; - TIFFGetFieldDefaulted(tif, TIFFTAG_INKSET, &inkset); - if (inkset != INKSET_CMYK) { - sprintf(emsg, - "Sorry, can not handle separated image with %s=%d", - "InkSet", inkset); - return 0; + colorchannels = td->td_samplesperpixel - td->td_extrasamples; + if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photometric)) { + switch (colorchannels) { + case 1: + photometric = PHOTOMETRIC_MINISBLACK; + break; + case 3: + photometric = PHOTOMETRIC_RGB; + break; + default: + sprintf(emsg, "Missing needed %s tag", photoTag); + return (0); } - if (td->td_samplesperpixel < 4) { - sprintf(emsg, - "Sorry, can not handle separated image with %s=%d", - "Samples/pixel", td->td_samplesperpixel); - return 0; - } - break; - } - case PHOTOMETRIC_LOGL: - if (td->td_compression != COMPRESSION_SGILOG) { - sprintf(emsg, "Sorry, LogL data must have %s=%d", - "Compression", COMPRESSION_SGILOG); - return (0); - } - break; - case PHOTOMETRIC_LOGLUV: - if (td->td_compression != COMPRESSION_SGILOG && - td->td_compression != COMPRESSION_SGILOG24) { - sprintf(emsg, "Sorry, LogLuv data must have %s=%d or %d", - "Compression", COMPRESSION_SGILOG, COMPRESSION_SGILOG24); - return (0); } - if (td->td_planarconfig != PLANARCONFIG_CONTIG) { - sprintf(emsg, "Sorry, can not handle LogLuv images with %s=%d", - "Planarconfiguration", td->td_planarconfig); - return (0); + switch (photometric) { + case PHOTOMETRIC_MINISWHITE: + case PHOTOMETRIC_MINISBLACK: + case PHOTOMETRIC_PALETTE: + if (td->td_planarconfig == PLANARCONFIG_CONTIG + && td->td_samplesperpixel != 1 + && td->td_bitspersample < 8 ) { + sprintf(emsg, + "Sorry, can not handle contiguous data with %s=%d, " + "and %s=%d and Bits/Sample=%d", + photoTag, photometric, + "Samples/pixel", td->td_samplesperpixel, + td->td_bitspersample); + return (0); + } + /* + * We should likely validate that any extra samples are either + * to be ignored, or are alpha, and if alpha we should try to use + * them. But for now we won't bother with this. + */ + break; + case PHOTOMETRIC_YCBCR: + /* + * TODO: if at all meaningful and useful, make more complete + * support check here, or better still, refactor to let supporting + * code decide whether there is support and what meaningfull + * error to return + */ + break; + case PHOTOMETRIC_RGB: + if (colorchannels < 3) { + sprintf(emsg, "Sorry, can not handle RGB image with %s=%d", + "Color channels", colorchannels); + return (0); + } + break; + case PHOTOMETRIC_SEPARATED: + { + uint16 inkset; + TIFFGetFieldDefaulted(tif, TIFFTAG_INKSET, &inkset); + if (inkset != INKSET_CMYK) { + sprintf(emsg, + "Sorry, can not handle separated image with %s=%d", + "InkSet", inkset); + return 0; + } + if (td->td_samplesperpixel < 4) { + sprintf(emsg, + "Sorry, can not handle separated image with %s=%d", + "Samples/pixel", td->td_samplesperpixel); + return 0; + } + break; + } + case PHOTOMETRIC_LOGL: + if (td->td_compression != COMPRESSION_SGILOG) { + sprintf(emsg, "Sorry, LogL data must have %s=%d", + "Compression", COMPRESSION_SGILOG); + return (0); + } + break; + case PHOTOMETRIC_LOGLUV: + if (td->td_compression != COMPRESSION_SGILOG && + td->td_compression != COMPRESSION_SGILOG24) { + sprintf(emsg, "Sorry, LogLuv data must have %s=%d or %d", + "Compression", COMPRESSION_SGILOG, COMPRESSION_SGILOG24); + return (0); + } + if (td->td_planarconfig != PLANARCONFIG_CONTIG) { + sprintf(emsg, "Sorry, can not handle LogLuv images with %s=%d", + "Planarconfiguration", td->td_planarconfig); + return (0); + } + break; + case PHOTOMETRIC_CIELAB: + break; + default: + sprintf(emsg, "Sorry, can not handle image with %s=%d", + photoTag, photometric); + return (0); } - break; - case PHOTOMETRIC_CIELAB: - break; - default: - sprintf(emsg, "Sorry, can not handle image with %s=%d", - photoTag, photometric); - return (0); - } - return (1); + return (1); } void @@ -199,7 +202,6 @@ TIFFRGBAImageEnd(TIFFRGBAImage* img) _TIFFfree(img->ycbcr), img->ycbcr = NULL; if (img->cielab) _TIFFfree(img->cielab), img->cielab = NULL; - if( img->redcmap ) { _TIFFfree( img->redcmap ); _TIFFfree( img->greencmap ); @@ -221,221 +223,227 @@ isCCITTCompression(TIFF* tif) int TIFFRGBAImageBegin(TIFFRGBAImage* img, TIFF* tif, int stop, char emsg[1024]) { - uint16* sampleinfo; - uint16 extrasamples; - uint16 planarconfig; - uint16 compress; - int colorchannels; - uint16 *red_orig, *green_orig, *blue_orig; - int n_color; - - /* Initialize to normal values */ - img->row_offset = 0; - img->col_offset = 0; - img->redcmap = NULL; - img->greencmap = NULL; - img->bluecmap = NULL; - img->req_orientation = ORIENTATION_BOTLEFT; /* It is the default */ - - img->tif = tif; - img->stoponerr = stop; - TIFFGetFieldDefaulted(tif, TIFFTAG_BITSPERSAMPLE, &img->bitspersample); - switch (img->bitspersample) { - case 1: case 2: case 4: - case 8: case 16: - break; - default: - sprintf(emsg, "Sorry, can not handle images with %d-bit samples", - img->bitspersample); - return (0); - } - img->alpha = 0; - TIFFGetFieldDefaulted(tif, TIFFTAG_SAMPLESPERPIXEL, &img->samplesperpixel); - TIFFGetFieldDefaulted(tif, TIFFTAG_EXTRASAMPLES, - &extrasamples, &sampleinfo); - if (extrasamples >= 1) - { - switch (sampleinfo[0]) { - case EXTRASAMPLE_UNSPECIFIED: /* Workaround for some images without */ - if (img->samplesperpixel > 3) /* correct info about alpha channel */ - img->alpha = EXTRASAMPLE_ASSOCALPHA; - break; - case EXTRASAMPLE_ASSOCALPHA: /* data is pre-multiplied */ - case EXTRASAMPLE_UNASSALPHA: /* data is not pre-multiplied */ - img->alpha = sampleinfo[0]; - break; + uint16* sampleinfo; + uint16 extrasamples; + uint16 planarconfig; + uint16 compress; + int colorchannels; + uint16 *red_orig, *green_orig, *blue_orig; + int n_color; + + /* Initialize to normal values */ + img->row_offset = 0; + img->col_offset = 0; + img->redcmap = NULL; + img->greencmap = NULL; + img->bluecmap = NULL; + img->req_orientation = ORIENTATION_BOTLEFT; /* It is the default */ + + img->tif = tif; + img->stoponerr = stop; + TIFFGetFieldDefaulted(tif, TIFFTAG_BITSPERSAMPLE, &img->bitspersample); + switch (img->bitspersample) { + case 1: + case 2: + case 4: + case 8: + case 16: + break; + default: + sprintf(emsg, "Sorry, can not handle images with %d-bit samples", + img->bitspersample); + return (0); + } + img->alpha = 0; + TIFFGetFieldDefaulted(tif, TIFFTAG_SAMPLESPERPIXEL, &img->samplesperpixel); + TIFFGetFieldDefaulted(tif, TIFFTAG_EXTRASAMPLES, + &extrasamples, &sampleinfo); + if (extrasamples >= 1) + { + switch (sampleinfo[0]) { + case EXTRASAMPLE_UNSPECIFIED: /* Workaround for some images without */ + if (img->samplesperpixel > 3) /* correct info about alpha channel */ + img->alpha = EXTRASAMPLE_ASSOCALPHA; + break; + case EXTRASAMPLE_ASSOCALPHA: /* data is pre-multiplied */ + case EXTRASAMPLE_UNASSALPHA: /* data is not pre-multiplied */ + img->alpha = sampleinfo[0]; + break; + } } - } #ifdef DEFAULT_EXTRASAMPLE_AS_ALPHA - if( !TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &img->photometric)) - img->photometric = PHOTOMETRIC_MINISWHITE; - - if( extrasamples == 0 - && img->samplesperpixel == 4 - && img->photometric == PHOTOMETRIC_RGB ) - { - img->alpha = EXTRASAMPLE_ASSOCALPHA; - extrasamples = 1; - } -#endif - - colorchannels = img->samplesperpixel - extrasamples; - TIFFGetFieldDefaulted(tif, TIFFTAG_COMPRESSION, &compress); - TIFFGetFieldDefaulted(tif, TIFFTAG_PLANARCONFIG, &planarconfig); - if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &img->photometric)) { - switch (colorchannels) { - case 1: - if (isCCITTCompression(tif)) + if( !TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &img->photometric)) img->photometric = PHOTOMETRIC_MINISWHITE; - else - img->photometric = PHOTOMETRIC_MINISBLACK; - break; - case 3: - img->photometric = PHOTOMETRIC_RGB; - break; - default: - sprintf(emsg, "Missing needed %s tag", photoTag); - return (0); - } - } - switch (img->photometric) { - case PHOTOMETRIC_PALETTE: - if (!TIFFGetField(tif, TIFFTAG_COLORMAP, - &red_orig, &green_orig, &blue_orig)) { - sprintf(emsg, "Missing required \"Colormap\" tag"); - return (0); - } - - /* copy the colormaps so we can modify them */ - n_color = (1L << img->bitspersample); - img->redcmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color); - img->greencmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color); - img->bluecmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color); - if( !img->redcmap || !img->greencmap || !img->bluecmap ) { - sprintf(emsg, "Out of memory for colormap copy"); - return (0); - } - _TIFFmemcpy( img->redcmap, red_orig, n_color * 2 ); - _TIFFmemcpy( img->greencmap, green_orig, n_color * 2 ); - _TIFFmemcpy( img->bluecmap, blue_orig, n_color * 2 ); - - /* fall thru... */ - case PHOTOMETRIC_MINISWHITE: - case PHOTOMETRIC_MINISBLACK: - if (planarconfig == PLANARCONFIG_CONTIG - && img->samplesperpixel != 1 - && img->bitspersample < 8 ) { - sprintf(emsg, - "Sorry, can not handle contiguous data with %s=%d, " - "and %s=%d and Bits/Sample=%d", - photoTag, img->photometric, - "Samples/pixel", img->samplesperpixel, - img->bitspersample); - return (0); - } - break; - case PHOTOMETRIC_YCBCR: - if (planarconfig != PLANARCONFIG_CONTIG) { - sprintf(emsg, "Sorry, can not handle YCbCr images with %s=%d", - "Planarconfiguration", planarconfig); - return (0); + if( extrasamples == 0 + && img->samplesperpixel == 4 + && img->photometric == PHOTOMETRIC_RGB ) + { + img->alpha = EXTRASAMPLE_ASSOCALPHA; + extrasamples = 1; } - /* It would probably be nice to have a reality check here. */ - if (planarconfig == PLANARCONFIG_CONTIG) - /* can rely on libjpeg to convert to RGB */ - /* XXX should restore current state on exit */ - switch (compress) { - case COMPRESSION_OJPEG: - case COMPRESSION_JPEG: - TIFFSetField(tif, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB); - img->photometric = PHOTOMETRIC_RGB; - break; +#endif - default: - /* do nothing */; - break; - } - break; - case PHOTOMETRIC_RGB: - if (colorchannels < 3) { - sprintf(emsg, "Sorry, can not handle RGB image with %s=%d", - "Color channels", colorchannels); - return (0); - } - break; - case PHOTOMETRIC_SEPARATED: { - uint16 inkset; - TIFFGetFieldDefaulted(tif, TIFFTAG_INKSET, &inkset); - if (inkset != INKSET_CMYK) { - sprintf(emsg, "Sorry, can not handle separated image with %s=%d", - "InkSet", inkset); - return (0); - } - if (img->samplesperpixel < 4) { - sprintf(emsg, "Sorry, can not handle separated image with %s=%d", - "Samples/pixel", img->samplesperpixel); - return (0); - } - break; - } - case PHOTOMETRIC_LOGL: - if (compress != COMPRESSION_SGILOG) { - sprintf(emsg, "Sorry, LogL data must have %s=%d", - "Compression", COMPRESSION_SGILOG); - return (0); - } - TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT); - img->photometric = PHOTOMETRIC_MINISBLACK; /* little white lie */ - img->bitspersample = 8; - break; - case PHOTOMETRIC_LOGLUV: - if (compress != COMPRESSION_SGILOG && compress != COMPRESSION_SGILOG24) { - sprintf(emsg, "Sorry, LogLuv data must have %s=%d or %d", - "Compression", COMPRESSION_SGILOG, COMPRESSION_SGILOG24); - return (0); - } - if (planarconfig != PLANARCONFIG_CONTIG) { - sprintf(emsg, "Sorry, can not handle LogLuv images with %s=%d", - "Planarconfiguration", planarconfig); - return (0); + colorchannels = img->samplesperpixel - extrasamples; + TIFFGetFieldDefaulted(tif, TIFFTAG_COMPRESSION, &compress); + TIFFGetFieldDefaulted(tif, TIFFTAG_PLANARCONFIG, &planarconfig); + if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &img->photometric)) { + switch (colorchannels) { + case 1: + if (isCCITTCompression(tif)) + img->photometric = PHOTOMETRIC_MINISWHITE; + else + img->photometric = PHOTOMETRIC_MINISBLACK; + break; + case 3: + img->photometric = PHOTOMETRIC_RGB; + break; + default: + sprintf(emsg, "Missing needed %s tag", photoTag); + return (0); + } } - TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT); - img->photometric = PHOTOMETRIC_RGB; /* little white lie */ - img->bitspersample = 8; - break; - case PHOTOMETRIC_CIELAB: - break; - default: - sprintf(emsg, "Sorry, can not handle image with %s=%d", - photoTag, img->photometric); - return (0); - } - img->Map = NULL; - img->BWmap = NULL; - img->PALmap = NULL; - img->ycbcr = NULL; - img->cielab = NULL; - TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &img->width); - TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &img->height); - TIFFGetFieldDefaulted(tif, TIFFTAG_ORIENTATION, &img->orientation); - img->isContig = - !(planarconfig == PLANARCONFIG_SEPARATE && colorchannels > 1); - if (img->isContig) { - img->get = TIFFIsTiled(tif) ? gtTileContig : gtStripContig; - if (!pickTileContigCase(img)) { - sprintf(emsg, "Sorry, can not handle image"); - return 0; + switch (img->photometric) { + case PHOTOMETRIC_PALETTE: + if (!TIFFGetField(tif, TIFFTAG_COLORMAP, + &red_orig, &green_orig, &blue_orig)) { + sprintf(emsg, "Missing required \"Colormap\" tag"); + return (0); + } + + /* copy the colormaps so we can modify them */ + n_color = (1L << img->bitspersample); + img->redcmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color); + img->greencmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color); + img->bluecmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color); + if( !img->redcmap || !img->greencmap || !img->bluecmap ) { + sprintf(emsg, "Out of memory for colormap copy"); + return (0); + } + + _TIFFmemcpy( img->redcmap, red_orig, n_color * 2 ); + _TIFFmemcpy( img->greencmap, green_orig, n_color * 2 ); + _TIFFmemcpy( img->bluecmap, blue_orig, n_color * 2 ); + + /* fall thru... */ + case PHOTOMETRIC_MINISWHITE: + case PHOTOMETRIC_MINISBLACK: + if (planarconfig == PLANARCONFIG_CONTIG + && img->samplesperpixel != 1 + && img->bitspersample < 8 ) { + sprintf(emsg, + "Sorry, can not handle contiguous data with %s=%d, " + "and %s=%d and Bits/Sample=%d", + photoTag, img->photometric, + "Samples/pixel", img->samplesperpixel, + img->bitspersample); + return (0); + } + break; + case PHOTOMETRIC_YCBCR: + /* It would probably be nice to have a reality check here. */ + if (planarconfig == PLANARCONFIG_CONTIG) + /* can rely on libjpeg to convert to RGB */ + /* XXX should restore current state on exit */ + switch (compress) { + case COMPRESSION_JPEG: + /* + * TODO: when complete tests verify complete desubsampling + * and YCbCr handling, remove use of TIFFTAG_JPEGCOLORMODE in + * favor of tif_getimage.c native handling + */ + TIFFSetField(tif, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB); + img->photometric = PHOTOMETRIC_RGB; + break; + default: + /* do nothing */; + break; + } + /* + * TODO: if at all meaningful and useful, make more complete + * support check here, or better still, refactor to let supporting + * code decide whether there is support and what meaningfull + * error to return + */ + break; + case PHOTOMETRIC_RGB: + if (colorchannels < 3) { + sprintf(emsg, "Sorry, can not handle RGB image with %s=%d", + "Color channels", colorchannels); + return (0); + } + break; + case PHOTOMETRIC_SEPARATED: + { + uint16 inkset; + TIFFGetFieldDefaulted(tif, TIFFTAG_INKSET, &inkset); + if (inkset != INKSET_CMYK) { + sprintf(emsg, "Sorry, can not handle separated image with %s=%d", + "InkSet", inkset); + return (0); + } + if (img->samplesperpixel < 4) { + sprintf(emsg, "Sorry, can not handle separated image with %s=%d", + "Samples/pixel", img->samplesperpixel); + return (0); + } + } + break; + case PHOTOMETRIC_LOGL: + if (compress != COMPRESSION_SGILOG) { + sprintf(emsg, "Sorry, LogL data must have %s=%d", + "Compression", COMPRESSION_SGILOG); + return (0); + } + TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT); + img->photometric = PHOTOMETRIC_MINISBLACK; /* little white lie */ + img->bitspersample = 8; + break; + case PHOTOMETRIC_LOGLUV: + if (compress != COMPRESSION_SGILOG && compress != COMPRESSION_SGILOG24) { + sprintf(emsg, "Sorry, LogLuv data must have %s=%d or %d", + "Compression", COMPRESSION_SGILOG, COMPRESSION_SGILOG24); + return (0); + } + if (planarconfig != PLANARCONFIG_CONTIG) { + sprintf(emsg, "Sorry, can not handle LogLuv images with %s=%d", + "Planarconfiguration", planarconfig); + return (0); + } + TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT); + img->photometric = PHOTOMETRIC_RGB; /* little white lie */ + img->bitspersample = 8; + break; + case PHOTOMETRIC_CIELAB: + break; + default: + sprintf(emsg, "Sorry, can not handle image with %s=%d", + photoTag, img->photometric); + return (0); } - } else { - img->get = TIFFIsTiled(tif) ? gtTileSeparate : gtStripSeparate; - if (!pickTileSeparateCase(img)) { - sprintf(emsg, "Sorry, can not handle image"); - return 0; + img->Map = NULL; + img->BWmap = NULL; + img->PALmap = NULL; + img->ycbcr = NULL; + img->cielab = NULL; + TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &img->width); + TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &img->height); + TIFFGetFieldDefaulted(tif, TIFFTAG_ORIENTATION, &img->orientation); + img->isContig = + !(planarconfig == PLANARCONFIG_SEPARATE && colorchannels > 1); + if (img->isContig) { + if (!PickContigCase(img)) { + sprintf(emsg, "Sorry, can not handle image"); + return 0; + } + } else { + if (!PickSeparateCase(img)) { + sprintf(emsg, "Sorry, can not handle image"); + return 0; + } } - } - return 1; + return 1; } int @@ -654,119 +662,120 @@ gtTileContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) static int gtTileSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) { - TIFF* tif = img->tif; - tileSeparateRoutine put = img->put.separate; - uint32 col, row, y, rowstoread; - uint32 pos; - uint32 tw, th; - unsigned char* buf; - unsigned char* r; - unsigned char* g; - unsigned char* b; - unsigned char* a; - tsize_t tilesize; - int32 fromskew, toskew; - int alpha = img->alpha; - uint32 nrow; - int ret = 1, flip; - - tilesize = TIFFTileSize(tif); - buf = (unsigned char*) _TIFFmalloc(4*tilesize); - if (buf == 0) { + TIFF* tif = img->tif; + tileSeparateRoutine put = img->put.separate; + uint32 col, row, y, rowstoread; + uint32 pos; + uint32 tw, th; + unsigned char* buf; + unsigned char* p0; + unsigned char* p1; + unsigned char* p2; + unsigned char* pa; + tsize_t tilesize; + int32 fromskew, toskew; + int alpha = img->alpha; + uint32 nrow; + int ret = 1, flip; + + tilesize = TIFFTileSize(tif); + buf = (unsigned char*) _TIFFmalloc((alpha?4:3)*tilesize); + if (buf == 0) { TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for tile buffer"); return (0); - } - _TIFFmemset(buf, 0, 4*tilesize); - r = buf; - g = r + tilesize; - b = g + tilesize; - a = b + tilesize; - if (!alpha) - _TIFFmemset(a, 0xff, tilesize); - TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tw); - TIFFGetField(tif, TIFFTAG_TILELENGTH, &th); - - flip = setorientation(img); - if (flip & FLIP_VERTICALLY) { - y = h - 1; - toskew = -(int32)(tw + w); - } - else { - y = 0; - toskew = -(int32)(tw - w); - } - - for (row = 0; row < h; row += nrow) - { - rowstoread = th - (row + img->row_offset) % th; - nrow = (row + rowstoread > h ? h - row : rowstoread); - for (col = 0; col < w; col += tw) - { - if (TIFFReadTile(tif, r, col+img->col_offset, - row+img->row_offset,0,0) < 0 && img->stoponerr) - { - ret = 0; - break; - } - if (TIFFReadTile(tif, g, col+img->col_offset, - row+img->row_offset,0,1) < 0 && img->stoponerr) - { - ret = 0; - break; - } - if (TIFFReadTile(tif, b, col+img->col_offset, - row+img->row_offset,0,2) < 0 && img->stoponerr) - { - ret = 0; - break; - } - if (alpha && TIFFReadTile(tif,a,col+img->col_offset, - row+img->row_offset,0,3) < 0 && img->stoponerr) - { - ret = 0; - break; - } + } + _TIFFmemset(buf, 0, (alpha?4:3)*tilesize); + p0 = buf; + p1 = p0 + tilesize; + p2 = p1 + tilesize; + pa = (alpha?(p2+tilesize):NULL); + TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tw); + TIFFGetField(tif, TIFFTAG_TILELENGTH, &th); + + flip = setorientation(img); + if (flip & FLIP_VERTICALLY) { + y = h - 1; + toskew = -(int32)(tw + w); + } + else { + y = 0; + toskew = -(int32)(tw - w); + } - pos = ((row+img->row_offset) % th) * TIFFTileRowSize(tif); + for (row = 0; row < h; row += nrow) + { + rowstoread = th - (row + img->row_offset) % th; + nrow = (row + rowstoread > h ? h - row : rowstoread); + for (col = 0; col < w; col += tw) + { + if (TIFFReadTile(tif, p0, col+img->col_offset, + row+img->row_offset,0,0) < 0 && img->stoponerr) + { + ret = 0; + break; + } + if (TIFFReadTile(tif, p1, col+img->col_offset, + row+img->row_offset,0,1) < 0 && img->stoponerr) + { + ret = 0; + break; + } + if (TIFFReadTile(tif, p2, col+img->col_offset, + row+img->row_offset,0,2) < 0 && img->stoponerr) + { + ret = 0; + break; + } + if (alpha) + { + if (TIFFReadTile(tif,pa,col+img->col_offset, + row+img->row_offset,0,3) < 0 && img->stoponerr) + { + ret = 0; + break; + } + } + + pos = ((row+img->row_offset) % th) * TIFFTileRowSize(tif); + + if (col + tw > w) + { + /* + * Tile is clipped horizontally. Calculate + * visible portion and skewing factors. + */ + uint32 npix = w - col; + fromskew = tw - npix; + (*put)(img, raster+y*w+col, col, y, + npix, nrow, fromskew, toskew + fromskew, + p0 + pos, p1 + pos, p2 + pos, (alpha?(pa+pos):NULL)); + } else { + (*put)(img, raster+y*w+col, col, y, + tw, nrow, 0, toskew, p0 + pos, p1 + pos, p2 + pos, (alpha?(pa+pos):NULL)); + } + } - if (col + tw > w) - { - /* - * Tile is clipped horizontally. Calculate - * visible portion and skewing factors. - */ - uint32 npix = w - col; - fromskew = tw - npix; - (*put)(img, raster+y*w+col, col, y, - npix, nrow, fromskew, toskew + fromskew, - r + pos, g + pos, b + pos, a + pos); - } else { - (*put)(img, raster+y*w+col, col, y, - tw, nrow, 0, toskew, r + pos, g + pos, b + pos, a + pos); - } - } + y += (flip & FLIP_VERTICALLY ?-(int32) nrow : (int32) nrow); + } - y += (flip & FLIP_VERTICALLY ?-(int32) nrow : (int32) nrow); - } + if (flip & FLIP_HORIZONTALLY) { + uint32 line; - if (flip & FLIP_HORIZONTALLY) { - uint32 line; + for (line = 0; line < h; line++) { + uint32 *left = raster + (line * w); + uint32 *right = left + w - 1; - for (line = 0; line < h; line++) { - uint32 *left = raster + (line * w); - uint32 *right = left + w - 1; - - while ( left < right ) { - uint32 temp = *left; - *left = *right; - *right = temp; - left++, right--; - } - } - } + while ( left < right ) { + uint32 temp = *left; + *left = *right; + *right = temp; + left++, right--; + } + } + } - _TIFFfree(buf); - return (ret); + _TIFFfree(buf); + return (ret); } /* @@ -778,73 +787,78 @@ gtTileSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) static int gtStripContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) { - TIFF* tif = img->tif; - tileContigRoutine put = img->put.contig; - uint32 row, y, nrow, rowstoread; - uint32 pos; - unsigned char* buf; - uint32 rowsperstrip; - uint32 imagewidth = img->width; - tsize_t scanline; - int32 fromskew, toskew; - int ret = 1, flip; - - buf = (unsigned char*) _TIFFmalloc(TIFFStripSize(tif)); - if (buf == 0) { + TIFF* tif = img->tif; + tileContigRoutine put = img->put.contig; + uint32 row, y, nrow, nrowsub, rowstoread; + uint32 pos; + unsigned char* buf; + uint32 rowsperstrip; + uint16 subsamplinghor,subsamplingver; + uint32 imagewidth = img->width; + tsize_t scanline; + int32 fromskew, toskew; + int ret = 1, flip; + + buf = (unsigned char*) _TIFFmalloc(TIFFStripSize(tif)); + if (buf == 0) { TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for strip buffer"); return (0); - } - _TIFFmemset(buf, 0, TIFFStripSize(tif)); + } + _TIFFmemset(buf, 0, TIFFStripSize(tif)); - flip = setorientation(img); - if (flip & FLIP_VERTICALLY) { - y = h - 1; - toskew = -(int32)(w + w); - } else { - y = 0; - toskew = -(int32)(w - w); - } + flip = setorientation(img); + if (flip & FLIP_VERTICALLY) { + y = h - 1; + toskew = -(int32)(w + w); + } else { + y = 0; + toskew = -(int32)(w - w); + } - TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); - scanline = TIFFScanlineSize(tif); - fromskew = (w < imagewidth ? imagewidth - w : 0); - for (row = 0; row < h; row += nrow) - { - rowstoread = rowsperstrip - (row + img->row_offset) % rowsperstrip; - nrow = (row + rowstoread > h ? h - row : rowstoread); - if (TIFFReadEncodedStrip(tif, - TIFFComputeStrip(tif,row+img->row_offset, 0), - buf, - ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0 - && img->stoponerr) - { - ret = 0; - break; - } + TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); + TIFFGetFieldDefaulted(tif, TIFFTAG_YCBCRSUBSAMPLING, &subsamplinghor, &subsamplingver); + scanline = TIFFNewScanlineSize(tif); + fromskew = (w < imagewidth ? imagewidth - w : 0); + for (row = 0; row < h; row += nrow) + { + rowstoread = rowsperstrip - (row + img->row_offset) % rowsperstrip; + nrow = (row + rowstoread > h ? h - row : rowstoread); + nrowsub = nrow; + if ((nrowsub%subsamplingver)!=0) + nrowsub+=subsamplingver-nrowsub%subsamplingver; + if (TIFFReadEncodedStrip(tif, + TIFFComputeStrip(tif,row+img->row_offset, 0), + buf, + ((row + img->row_offset)%rowsperstrip + nrowsub) * scanline) < 0 + && img->stoponerr) + { + ret = 0; + break; + } - pos = ((row + img->row_offset) % rowsperstrip) * scanline; - (*put)(img, raster+y*w, 0, y, w, nrow, fromskew, toskew, buf + pos); - y += (flip & FLIP_VERTICALLY ? -(int32) nrow : (int32) nrow); - } + pos = ((row + img->row_offset) % rowsperstrip) * scanline; + (*put)(img, raster+y*w, 0, y, w, nrow, fromskew, toskew, buf + pos); + y += (flip & FLIP_VERTICALLY ? -(int32) nrow : (int32) nrow); + } - if (flip & FLIP_HORIZONTALLY) { - uint32 line; + if (flip & FLIP_HORIZONTALLY) { + uint32 line; - for (line = 0; line < h; line++) { - uint32 *left = raster + (line * w); - uint32 *right = left + w - 1; - - while ( left < right ) { - uint32 temp = *left; - *left = *right; - *right = temp; - left++, right--; - } - } - } + for (line = 0; line < h; line++) { + uint32 *left = raster + (line * w); + uint32 *right = left + w - 1; - _TIFFfree(buf); - return (ret); + while ( left < right ) { + uint32 temp = *left; + *left = *right; + *right = temp; + left++, right--; + } + } + } + + _TIFFfree(buf); + return (ret); } /* @@ -856,105 +870,105 @@ gtStripContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) static int gtStripSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) { - TIFF* tif = img->tif; - tileSeparateRoutine put = img->put.separate; - unsigned char *buf; - unsigned char *r, *g, *b, *a; - uint32 row, y, nrow, rowstoread; - uint32 pos; - tsize_t scanline; - uint32 rowsperstrip, offset_row; - uint32 imagewidth = img->width; - tsize_t stripsize; - int32 fromskew, toskew; - int alpha = img->alpha; - int ret = 1, flip; - - stripsize = TIFFStripSize(tif); - r = buf = (unsigned char *)_TIFFmalloc(4*stripsize); - if (buf == 0) { + TIFF* tif = img->tif; + tileSeparateRoutine put = img->put.separate; + unsigned char *buf; + unsigned char *p0, *p1, *p2, *pa; + uint32 row, y, nrow, rowstoread; + uint32 pos; + tsize_t scanline; + uint32 rowsperstrip, offset_row; + uint32 imagewidth = img->width; + tsize_t stripsize; + int32 fromskew, toskew; + int alpha = img->alpha; + int ret = 1, flip; + + stripsize = TIFFStripSize(tif); + p0 = buf = (unsigned char *)_TIFFmalloc((alpha?4:3)*stripsize); + if (buf == 0) { TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for tile buffer"); return (0); - } - _TIFFmemset(buf, 0, 4*stripsize); - g = r + stripsize; - b = g + stripsize; - a = b + stripsize; - if (!alpha) - _TIFFmemset(a, 0xff, stripsize); + } + _TIFFmemset(buf, 0, (alpha?4:3)*stripsize); + p1 = p0 + stripsize; + p2 = p1 + stripsize; + pa = (alpha?(p2+stripsize):NULL); + + flip = setorientation(img); + if (flip & FLIP_VERTICALLY) { + y = h - 1; + toskew = -(int32)(w + w); + } + else { + y = 0; + toskew = -(int32)(w - w); + } - flip = setorientation(img); - if (flip & FLIP_VERTICALLY) { - y = h - 1; - toskew = -(int32)(w + w); - } - else { - y = 0; - toskew = -(int32)(w - w); - } + TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); + scanline = TIFFScanlineSize(tif); + fromskew = (w < imagewidth ? imagewidth - w : 0); + for (row = 0; row < h; row += nrow) + { + rowstoread = rowsperstrip - (row + img->row_offset) % rowsperstrip; + nrow = (row + rowstoread > h ? h - row : rowstoread); + offset_row = row + img->row_offset; + if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 0), + p0, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0 + && img->stoponerr) + { + ret = 0; + break; + } + if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 1), + p1, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0 + && img->stoponerr) + { + ret = 0; + break; + } + if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 2), + p2, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0 + && img->stoponerr) + { + ret = 0; + break; + } + if (alpha) + { + if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 3), + pa, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0 + && img->stoponerr) + { + ret = 0; + break; + } + } - TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); - scanline = TIFFScanlineSize(tif); - fromskew = (w < imagewidth ? imagewidth - w : 0); - for (row = 0; row < h; row += nrow) - { - rowstoread = rowsperstrip - (row + img->row_offset) % rowsperstrip; - nrow = (row + rowstoread > h ? h - row : rowstoread); - offset_row = row + img->row_offset; - if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 0), - r, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0 - && img->stoponerr) - { - ret = 0; - break; - } - if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 1), - g, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0 - && img->stoponerr) - { - ret = 0; - break; - } - if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 2), - b, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0 - && img->stoponerr) - { - ret = 0; - break; - } - if (alpha && - (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 3), - a, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0 - && img->stoponerr)) - { - ret = 0; - break; - } + pos = ((row + img->row_offset) % rowsperstrip) * scanline; + (*put)(img, raster+y*w, 0, y, w, nrow, fromskew, toskew, p0 + pos, p1 + pos, + p2 + pos, (alpha?(pa+pos):NULL)); + y += (flip & FLIP_VERTICALLY ? -(int32) nrow : (int32) nrow); + } - pos = ((row + img->row_offset) % rowsperstrip) * scanline; - (*put)(img, raster+y*w, 0, y, w, nrow, fromskew, toskew, r + pos, g + pos, - b + pos, a + pos); - y += (flip & FLIP_VERTICALLY ? -(int32) nrow : (int32) nrow); - } + if (flip & FLIP_HORIZONTALLY) { + uint32 line; - if (flip & FLIP_HORIZONTALLY) { - uint32 line; + for (line = 0; line < h; line++) { + uint32 *left = raster + (line * w); + uint32 *right = left + w - 1; - for (line = 0; line < h; line++) { - uint32 *left = raster + (line * w); - uint32 *right = left + w - 1; - - while ( left < right ) { - uint32 temp = *left; - *left = *right; - *right = temp; - left++, right--; - } - } - } + while ( left < right ) { + uint32 temp = *left; + *left = *right; + *right = temp; + left++, right--; + } + } + } - _TIFFfree(buf); - return (ret); + _TIFFfree(buf); + return (ret); } /* @@ -963,9 +977,9 @@ gtStripSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) * ABGR pixels (i.e. suitable for passing to lrecwrite.) * * The routines have been created according to the most - * important cases and optimized. pickTileContigCase and - * pickTileSeparateCase analyze the parameters and select - * the appropriate "put" routine to use. + * important cases and optimized. PickContigCase and + * PickSeparateCase analyze the parameters and select + * the appropriate "get" and "put" routine to use. */ #define REPEAT8(op) REPEAT4(op); REPEAT4(op) #define REPEAT4(op) REPEAT2(op); REPEAT2(op) @@ -1223,26 +1237,6 @@ DECLAREContigPutFunc(putRGBcontig8bittile) } /* - * 8-bit packed samples, w/ Map => RGB - */ -DECLAREContigPutFunc(putRGBcontig8bitMaptile) -{ - TIFFRGBValue* Map = img->Map; - int samplesperpixel = img->samplesperpixel; - - (void) y; - fromskew *= samplesperpixel; - while (h-- > 0) { - for (x = w; x-- > 0;) { - *cp++ = PACK(Map[pp[0]], Map[pp[1]], Map[pp[2]]); - pp += samplesperpixel; - } - pp += fromskew; - cp += toskew; - } -} - -/* * 8-bit packed samples => RGBA w/ associated alpha * (known to have Map == NULL) */ @@ -1267,23 +1261,22 @@ DECLAREContigPutFunc(putRGBAAcontig8bittile) */ DECLAREContigPutFunc(putRGBUAcontig8bittile) { - int samplesperpixel = img->samplesperpixel; - - (void) y; - fromskew *= samplesperpixel; - while (h-- > 0) { - uint32 r, g, b, a; - for (x = w; x-- > 0;) { - a = pp[3]; - r = (pp[0] * a) / 255; - g = (pp[1] * a) / 255; - b = (pp[2] * a) / 255; - *cp++ = PACK4(r,g,b,a); - pp += samplesperpixel; + int samplesperpixel = img->samplesperpixel; + (void) y; + fromskew *= samplesperpixel; + while (h-- > 0) { + uint32 r, g, b, a; + for (x = w; x-- > 0;) { + a = pp[3]; + r = (a*pp[0] + 127) / 255; + g = (a*pp[1] + 127) / 255; + b = (a*pp[2] + 127) / 255; + *cp++ = PACK4(r,g,b,a); + pp += samplesperpixel; + } + cp += toskew; + pp += fromskew; } - cp += toskew; - pp += fromskew; - } } /* @@ -1291,19 +1284,18 @@ DECLAREContigPutFunc(putRGBUAcontig8bittile) */ DECLAREContigPutFunc(putRGBcontig16bittile) { - int samplesperpixel = img->samplesperpixel; - uint16 *wp = (uint16 *)pp; - - (void) y; - fromskew *= samplesperpixel; - while (h-- > 0) { - for (x = w; x-- > 0;) { - *cp++ = PACKW(wp[0], wp[1], wp[2]); - wp += samplesperpixel; + int samplesperpixel = img->samplesperpixel; + uint16 *wp = (uint16 *)pp; + (void) y; + fromskew *= samplesperpixel; + while (h-- > 0) { + for (x = w; x-- > 0;) { + *cp++ = PACKW(wp[0],wp[1],wp[2]); + wp += samplesperpixel; + } + cp += toskew; + wp += fromskew; } - cp += toskew; - wp += fromskew; - } } /* @@ -1312,19 +1304,18 @@ DECLAREContigPutFunc(putRGBcontig16bittile) */ DECLAREContigPutFunc(putRGBAAcontig16bittile) { - int samplesperpixel = img->samplesperpixel; - uint16 *wp = (uint16 *)pp; - - (void) y; - fromskew *= samplesperpixel; - while (h-- > 0) { - for (x = w; x-- > 0;) { - *cp++ = PACKW4(wp[0], wp[1], wp[2], wp[3]); - wp += samplesperpixel; + int samplesperpixel = img->samplesperpixel; + uint16 *wp = (uint16 *)pp; + (void) y; + fromskew *= samplesperpixel; + while (h-- > 0) { + for (x = w; x-- > 0;) { + *cp++ = PACKW4(wp[0],wp[1],wp[2],wp[3]); + wp += samplesperpixel; + } + cp += toskew; + wp += fromskew; } - cp += toskew; - wp += fromskew; - } } /* @@ -1333,32 +1324,23 @@ DECLAREContigPutFunc(putRGBAAcontig16bittile) */ DECLAREContigPutFunc(putRGBUAcontig16bittile) { - int samplesperpixel = img->samplesperpixel; - uint16 *wp = (uint16 *)pp; - - (void) y; - fromskew *= samplesperpixel; - while (h-- > 0) { - uint32 r,g,b,a; - /* - * We shift alpha down four bits just in case unsigned - * arithmetic doesn't handle the full range. - * We still have plenty of accuracy, since the output is 8 bits. - * So we have (r * 0xffff) * (a * 0xfff)) = r*a * (0xffff*0xfff) - * Since we want r*a * 0xff for eight bit output, - * we divide by (0xffff * 0xfff) / 0xff == 0x10eff. - */ - for (x = w; x-- > 0;) { - a = wp[3] >> 4; - r = (wp[0] * a) / 0x10eff; - g = (wp[1] * a) / 0x10eff; - b = (wp[2] * a) / 0x10eff; - *cp++ = PACK4(r,g,b,a); - wp += samplesperpixel; + int samplesperpixel = img->samplesperpixel; + uint16 *wp = (uint16 *)pp; + (void) y; + fromskew *= samplesperpixel; + while (h-- > 0) { + uint32 r,g,b,a; + for (x = w; x-- > 0;) { + a = W2B(wp[3]); + r = (a*W2B(wp[0]) + 127) / 255; + g = (a*W2B(wp[1]) + 127) / 255; + b = (a*W2B(wp[2]) + 127) / 255; + *cp++ = PACK4(r,g,b,a); + wp += samplesperpixel; + } + cp += toskew; + wp += fromskew; } - cp += toskew; - wp += fromskew; - } } /* @@ -1437,32 +1419,16 @@ DECLARESepPutFunc(putRGBseparate8bittile) } /* - * 8-bit unpacked samples => RGB - */ -DECLARESepPutFunc(putRGBseparate8bitMaptile) -{ - TIFFRGBValue* Map = img->Map; - - (void) y; (void) a; - while (h-- > 0) { - for (x = w; x > 0; x--) - *cp++ = PACK(Map[*r++], Map[*g++], Map[*b++]); - SKEW(r, g, b, fromskew); - cp += toskew; - } -} - -/* * 8-bit unpacked samples => RGBA w/ associated alpha */ DECLARESepPutFunc(putRGBAAseparate8bittile) { - (void) img; (void) x; (void) y; - while (h-- > 0) { - UNROLL8(w, NOP, *cp++ = PACK4(*r++, *g++, *b++, *a++)); - SKEW4(r, g, b, a, fromskew); - cp += toskew; - } + (void) img; (void) x; (void) y; + while (h-- > 0) { + UNROLL8(w, NOP, *cp++ = PACK4(*r++, *g++, *b++, *a++)); + SKEW4(r, g, b, a, fromskew); + cp += toskew; + } } /* @@ -1470,19 +1436,19 @@ DECLARESepPutFunc(putRGBAAseparate8bittile) */ DECLARESepPutFunc(putRGBUAseparate8bittile) { - (void) img; (void) y; - while (h-- > 0) { - uint32 rv, gv, bv, av; - for (x = w; x-- > 0;) { - av = *a++; - rv = (*r++ * av) / 255; - gv = (*g++ * av) / 255; - bv = (*b++ * av) / 255; - *cp++ = PACK4(rv,gv,bv,av); + (void) img; (void) y; + while (h-- > 0) { + uint32 rv, gv, bv, av; + for (x = w; x-- > 0;) { + av = *a++; + rv = (av* *r++ + 127) / 255; + gv = (av* *g++ + 127) / 255; + bv = (av* *b++ + 127) / 255; + *cp++ = PACK4(rv,gv,bv,av); + } + SKEW4(r, g, b, a, fromskew); + cp += toskew; } - SKEW4(r, g, b, a, fromskew); - cp += toskew; - } } /* @@ -1490,17 +1456,16 @@ DECLARESepPutFunc(putRGBUAseparate8bittile) */ DECLARESepPutFunc(putRGBseparate16bittile) { - uint16 *wr = (uint16*) r; - uint16 *wg = (uint16*) g; - uint16 *wb = (uint16*) b; - - (void) img; (void) y; (void) a; - while (h-- > 0) { - for (x = 0; x < w; x++) - *cp++ = PACKW(*wr++, *wg++, *wb++); - SKEW(wr, wg, wb, fromskew); - cp += toskew; - } + uint16 *wr = (uint16*) r; + uint16 *wg = (uint16*) g; + uint16 *wb = (uint16*) b; + (void) img; (void) y; (void) a; + while (h-- > 0) { + for (x = 0; x < w; x++) + *cp++ = PACKW(*wr++,*wg++,*wb++); + SKEW(wr, wg, wb, fromskew); + cp += toskew; + } } /* @@ -1508,18 +1473,17 @@ DECLARESepPutFunc(putRGBseparate16bittile) */ DECLARESepPutFunc(putRGBAAseparate16bittile) { - uint16 *wr = (uint16*) r; - uint16 *wg = (uint16*) g; - uint16 *wb = (uint16*) b; - uint16 *wa = (uint16*) a; - - (void) img; (void) y; - while (h-- > 0) { - for (x = 0; x < w; x++) - *cp++ = PACKW4(*wr++, *wg++, *wb++, *wa++); - SKEW4(wr, wg, wb, wa, fromskew); - cp += toskew; - } + uint16 *wr = (uint16*) r; + uint16 *wg = (uint16*) g; + uint16 *wb = (uint16*) b; + uint16 *wa = (uint16*) a; + (void) img; (void) y; + while (h-- > 0) { + for (x = 0; x < w; x++) + *cp++ = PACKW4(*wr++,*wg++,*wb++,*wa++); + SKEW4(wr, wg, wb, wa, fromskew); + cp += toskew; + } } /* @@ -1527,32 +1491,23 @@ DECLARESepPutFunc(putRGBAAseparate16bittile) */ DECLARESepPutFunc(putRGBUAseparate16bittile) { - uint16 *wr = (uint16*) r; - uint16 *wg = (uint16*) g; - uint16 *wb = (uint16*) b; - uint16 *wa = (uint16*) a; - - (void) img; (void) y; - while (h-- > 0) { - uint32 r,g,b,a; - /* - * We shift alpha down four bits just in case unsigned - * arithmetic doesn't handle the full range. - * We still have plenty of accuracy, since the output is 8 bits. - * So we have (r * 0xffff) * (a * 0xfff)) = r*a * (0xffff*0xfff) - * Since we want r*a * 0xff for eight bit output, - * we divide by (0xffff * 0xfff) / 0xff == 0x10eff. - */ - for (x = w; x-- > 0;) { - a = *wa++ >> 4; - r = (*wr++ * a) / 0x10eff; - g = (*wg++ * a) / 0x10eff; - b = (*wb++ * a) / 0x10eff; - *cp++ = PACK4(r,g,b,a); + uint16 *wr = (uint16*) r; + uint16 *wg = (uint16*) g; + uint16 *wb = (uint16*) b; + uint16 *wa = (uint16*) a; + (void) img; (void) y; + while (h-- > 0) { + uint32 r,g,b,a; + for (x = w; x-- > 0;) { + a = W2B(*wa++); + r = (a*W2B(*wr++) + 127) / 255; + g = (a*W2B(*wg++) + 127) / 255; + b = (a*W2B(*wb++) + 127) / 255; + *cp++ = PACK4(r,g,b,a); + } + SKEW4(wr, wg, wb, wa, fromskew); + cp += toskew; } - SKEW4(wr, wg, wb, wa, fromskew); - cp += toskew; - } } /* @@ -1890,63 +1845,56 @@ DECLAREContigPutFunc(putcontig8bitYCbCr41tile) */ DECLAREContigPutFunc(putcontig8bitYCbCr22tile) { - uint32* cp1 = cp+w+toskew; - int32 incr = 2*toskew+w; - - (void) y; - fromskew = (fromskew * 6) / 2; - if ((h & 1) == 0 && (w & 1) == 0) { - for (; h >= 2; h -= 2) { - x = w>>1; - do { - int32 Cb = pp[4]; - int32 Cr = pp[5]; - - YCbCrtoRGB(cp [0], pp[0]); - YCbCrtoRGB(cp [1], pp[1]); - YCbCrtoRGB(cp1[0], pp[2]); - YCbCrtoRGB(cp1[1], pp[3]); - - cp += 2, cp1 += 2; - pp += 6; - } while (--x); - cp += incr, cp1 += incr; - pp += fromskew; - } - } else { - while (h > 0) { - for (x = w; x > 0;) { - int32 Cb = pp[4]; - int32 Cr = pp[5]; - switch (x) { - default: - switch (h) { - default: YCbCrtoRGB(cp1[1], pp[ 3]); /* FALLTHROUGH */ - case 1: YCbCrtoRGB(cp [1], pp[ 1]); /* FALLTHROUGH */ - } /* FALLTHROUGH */ - case 1: - switch (h) { - default: YCbCrtoRGB(cp1[0], pp[ 2]); /* FALLTHROUGH */ - case 1: YCbCrtoRGB(cp [0], pp[ 0]); /* FALLTHROUGH */ - } /* FALLTHROUGH */ - } - if (x < 2) { - cp += x; cp1 += x; - x = 0; - } - else { - cp += 2; cp1 += 2; - x -= 2; - } - pp += 6; - } - if (h <= 2) - break; - h -= 2; - cp += incr, cp1 += incr; - pp += fromskew; - } - } + uint32* cp2; + (void) y; + fromskew = (fromskew / 2) * 6; + cp2 = cp+w+toskew; + while (h>=2) { + x = w; + while (x>=2) { + uint32 Cb = pp[4]; + uint32 Cr = pp[5]; + YCbCrtoRGB(cp[0], pp[0]); + YCbCrtoRGB(cp[1], pp[1]); + YCbCrtoRGB(cp2[0], pp[2]); + YCbCrtoRGB(cp2[1], pp[3]); + cp += 2; + cp2 += 2; + pp += 6; + x -= 2; + } + if (x==1) { + uint32 Cb = pp[4]; + uint32 Cr = pp[5]; + YCbCrtoRGB(cp[0], pp[0]); + YCbCrtoRGB(cp2[0], pp[2]); + cp ++ ; + cp2 ++ ; + pp += 6; + } + cp += toskew*2+w; + cp2 += toskew*2+w; + pp += fromskew; + h-=2; + } + if (h==1) { + x = w; + while (x>=2) { + uint32 Cb = pp[4]; + uint32 Cr = pp[5]; + YCbCrtoRGB(cp[0], pp[0]); + YCbCrtoRGB(cp[1], pp[1]); + cp += 2; + cp2 += 2; + pp += 6; + x -= 2; + } + if (x==1) { + uint32 Cb = pp[4]; + uint32 Cr = pp[5]; + YCbCrtoRGB(cp[0], pp[0]); + } + } } /* @@ -1954,35 +1902,72 @@ DECLAREContigPutFunc(putcontig8bitYCbCr22tile) */ DECLAREContigPutFunc(putcontig8bitYCbCr21tile) { - (void) y; - fromskew = (fromskew * 4) / 2; - do { - x = w>>1; + (void) y; + fromskew = (fromskew * 4) / 2; do { - int32 Cb = pp[2]; - int32 Cr = pp[3]; + x = w>>1; + do { + int32 Cb = pp[2]; + int32 Cr = pp[3]; - YCbCrtoRGB(cp[0], pp[0]); - YCbCrtoRGB(cp[1], pp[1]); + YCbCrtoRGB(cp[0], pp[0]); + YCbCrtoRGB(cp[1], pp[1]); - cp += 2; - pp += 4; - } while (--x); + cp += 2; + pp += 4; + } while (--x); - if( (w&1) != 0 ) - { - int32 Cb = pp[2]; - int32 Cr = pp[3]; - - YCbCrtoRGB(cp [0], pp[0]); + if( (w&1) != 0 ) + { + int32 Cb = pp[2]; + int32 Cr = pp[3]; - cp += 1; - pp += 4; - } + YCbCrtoRGB(cp[0], pp[0]); - cp += toskew; - pp += fromskew; - } while (--h); + cp += 1; + pp += 4; + } + + cp += toskew; + pp += fromskew; + } while (--h); +} + +/* + * 8-bit packed YCbCr samples w/ 1,2 subsampling => RGB + */ +DECLAREContigPutFunc(putcontig8bitYCbCr12tile) +{ + uint32* cp2; + (void) y; + fromskew = (fromskew / 2) * 4; + cp2 = cp+w+toskew; + while (h>=2) { + x = w; + do { + uint32 Cb = pp[2]; + uint32 Cr = pp[3]; + YCbCrtoRGB(cp[0], pp[0]); + YCbCrtoRGB(cp2[0], pp[1]); + cp ++; + cp2 ++; + pp += 4; + } while (--x); + cp += toskew*2+w; + cp2 += toskew*2+w; + pp += fromskew; + h-=2; + } + if (h==1) { + x = w; + do { + uint32 Cb = pp[2]; + uint32 Cr = pp[3]; + YCbCrtoRGB(cp[0], pp[0]); + cp ++; + pp += 4; + } while (--x); + } } /* @@ -1990,70 +1975,71 @@ DECLAREContigPutFunc(putcontig8bitYCbCr21tile) */ DECLAREContigPutFunc(putcontig8bitYCbCr11tile) { - (void) y; - fromskew *= 3; - do { - x = w; /* was x = w>>1; patched 2000/09/25 warmerda@home.com */ + (void) y; + fromskew *= 3; do { - int32 Cb = pp[1]; - int32 Cr = pp[2]; + x = w; /* was x = w>>1; patched 2000/09/25 warmerda@home.com */ + do { + int32 Cb = pp[1]; + int32 Cr = pp[2]; - YCbCrtoRGB(*cp++, pp[0]); + YCbCrtoRGB(*cp++, pp[0]); - pp += 3; - } while (--x); - cp += toskew; - pp += fromskew; - } while (--h); + pp += 3; + } while (--x); + cp += toskew; + pp += fromskew; + } while (--h); } -#undef YCbCrtoRGB -static tileContigRoutine +/* + * 8-bit packed YCbCr samples w/ no subsampling => RGB + */ +DECLARESepPutFunc(putseparate8bitYCbCr11tile) +{ + (void) y; + (void) a; + /* TODO: naming of input vars is still off, change obfuscating declaration inside define, or resolve obfuscation */ + while (h-- > 0) { + x = w; + do { + uint32 dr, dg, db; + TIFFYCbCrtoRGB(img->ycbcr,*r++,*g++,*b++,&dr,&dg,&db); + *cp++ = PACK(dr,dg,db); + } while (--x); + SKEW(r, g, b, fromskew); + cp += toskew; + } +} +#undef YCbCrtoRGB + +static int initYCbCrConversion(TIFFRGBAImage* img) { - static char module[] = "initCIELabConversion"; + static char module[] = "initYCbCrConversion"; float *luma, *refBlackWhite; - uint16 hs, vs; if (img->ycbcr == NULL) { - img->ycbcr = (TIFFYCbCrToRGB*) _TIFFmalloc( + img->ycbcr = (TIFFYCbCrToRGB*) _TIFFmalloc( TIFFroundup(sizeof (TIFFYCbCrToRGB), sizeof (long)) + 4*256*sizeof (TIFFRGBValue) + 2*256*sizeof (int) + 3*256*sizeof (int32) - ); - if (img->ycbcr == NULL) { + ); + if (img->ycbcr == NULL) { TIFFErrorExt(img->tif->tif_clientdata, module, - "No space for YCbCr->RGB conversion state"); - return (NULL); - } + "No space for YCbCr->RGB conversion state"); + return (0); + } } TIFFGetFieldDefaulted(img->tif, TIFFTAG_YCBCRCOEFFICIENTS, &luma); TIFFGetFieldDefaulted(img->tif, TIFFTAG_REFERENCEBLACKWHITE, - &refBlackWhite); + &refBlackWhite); if (TIFFYCbCrToRGBInit(img->ycbcr, luma, refBlackWhite) < 0) - return NULL; - - /* - * The 6.0 spec says that subsampling must be - * one of 1, 2, or 4, and that vertical subsampling - * must always be <= horizontal subsampling; so - * there are only a few possibilities and we just - * enumerate the cases. - */ - TIFFGetFieldDefaulted(img->tif, TIFFTAG_YCBCRSUBSAMPLING, &hs, &vs); - switch ((hs<<4)|vs) { - case 0x44: return (putcontig8bitYCbCr44tile); - case 0x42: return (putcontig8bitYCbCr42tile); - case 0x41: return (putcontig8bitYCbCr41tile); - case 0x22: return (putcontig8bitYCbCr22tile); - case 0x21: return (putcontig8bitYCbCr21tile); - case 0x11: return (putcontig8bitYCbCr11tile); - } - - return (NULL); + return(0); + return (1); } static tileContigRoutine @@ -2327,73 +2313,140 @@ buildMap(TIFFRGBAImage* img) * Select the appropriate conversion routine for packed data. */ static int -pickTileContigCase(TIFFRGBAImage* img) +PickContigCase(TIFFRGBAImage* img) { - tileContigRoutine put = 0; - - if (buildMap(img)) { + img->get = TIFFIsTiled(img->tif) ? gtTileContig : gtStripContig; + img->put.contig = NULL; switch (img->photometric) { - case PHOTOMETRIC_RGB: - switch (img->bitspersample) { - case 8: - if (!img->Map) { - if (img->alpha == EXTRASAMPLE_ASSOCALPHA) - put = putRGBAAcontig8bittile; - else if (img->alpha == EXTRASAMPLE_UNASSALPHA) - put = putRGBUAcontig8bittile; - else - put = putRGBcontig8bittile; - } else - put = putRGBcontig8bitMaptile; - break; - case 16: - put = putRGBcontig16bittile; - if (!img->Map) { - if (img->alpha == EXTRASAMPLE_ASSOCALPHA) - put = putRGBAAcontig16bittile; - else if (img->alpha == EXTRASAMPLE_UNASSALPHA) - put = putRGBUAcontig16bittile; - } - break; - } - break; - case PHOTOMETRIC_SEPARATED: - if (img->bitspersample == 8) { - if (!img->Map) - put = putRGBcontig8bitCMYKtile; - else - put = putRGBcontig8bitCMYKMaptile; - } - break; - case PHOTOMETRIC_PALETTE: - switch (img->bitspersample) { - case 8: put = put8bitcmaptile; break; - case 4: put = put4bitcmaptile; break; - case 2: put = put2bitcmaptile; break; - case 1: put = put1bitcmaptile; break; - } - break; - case PHOTOMETRIC_MINISWHITE: - case PHOTOMETRIC_MINISBLACK: - switch (img->bitspersample) { - case 16: put = put16bitbwtile; break; - case 8: put = putgreytile; break; - case 4: put = put4bitbwtile; break; - case 2: put = put2bitbwtile; break; - case 1: put = put1bitbwtile; break; - } - break; - case PHOTOMETRIC_YCBCR: - if (img->bitspersample == 8) - put = initYCbCrConversion(img); - break; - case PHOTOMETRIC_CIELAB: - if (img->bitspersample == 8) - put = initCIELabConversion(img); - break; + case PHOTOMETRIC_RGB: + switch (img->bitspersample) { + case 8: + if (img->alpha == EXTRASAMPLE_ASSOCALPHA) + img->put.contig = putRGBAAcontig8bittile; + else if (img->alpha == EXTRASAMPLE_UNASSALPHA) + { + img->put.contig = putRGBUAcontig8bittile; + } + else + img->put.contig = putRGBcontig8bittile; + break; + case 16: + if (img->alpha == EXTRASAMPLE_ASSOCALPHA) + { + img->put.contig = putRGBAAcontig16bittile; + } + else if (img->alpha == EXTRASAMPLE_UNASSALPHA) + { + img->put.contig = putRGBUAcontig16bittile; + } + else + { + img->put.contig = putRGBcontig16bittile; + } + break; + } + break; + case PHOTOMETRIC_SEPARATED: + if (buildMap(img)) { + if (img->bitspersample == 8) { + if (!img->Map) + img->put.contig = putRGBcontig8bitCMYKtile; + else + img->put.contig = putRGBcontig8bitCMYKMaptile; + } + } + break; + case PHOTOMETRIC_PALETTE: + if (buildMap(img)) { + switch (img->bitspersample) { + case 8: + img->put.contig = put8bitcmaptile; + break; + case 4: + img->put.contig = put4bitcmaptile; + break; + case 2: + img->put.contig = put2bitcmaptile; + break; + case 1: + img->put.contig = put1bitcmaptile; + break; + } + } + break; + case PHOTOMETRIC_MINISWHITE: + case PHOTOMETRIC_MINISBLACK: + if (buildMap(img)) { + switch (img->bitspersample) { + case 16: + img->put.contig = put16bitbwtile; + break; + case 8: + img->put.contig = putgreytile; + break; + case 4: + img->put.contig = put4bitbwtile; + break; + case 2: + img->put.contig = put2bitbwtile; + break; + case 1: + img->put.contig = put1bitbwtile; + break; + } + } + break; + case PHOTOMETRIC_YCBCR: + if (img->bitspersample == 8) + { + if (initYCbCrConversion(img)!=0) + { + /* + * The 6.0 spec says that subsampling must be + * one of 1, 2, or 4, and that vertical subsampling + * must always be <= horizontal subsampling; so + * there are only a few possibilities and we just + * enumerate the cases. + * Joris: added support for the [1,2] case, nonetheless, to accomodate + * some OJPEG files + */ + uint16 SubsamplingHor; + uint16 SubsamplingVer; + TIFFGetFieldDefaulted(img->tif, TIFFTAG_YCBCRSUBSAMPLING, &SubsamplingHor, &SubsamplingVer); + switch ((SubsamplingHor<<4)|SubsamplingVer) { + case 0x44: + img->put.contig = putcontig8bitYCbCr44tile; + break; + case 0x42: + img->put.contig = putcontig8bitYCbCr42tile; + break; + case 0x41: + img->put.contig = putcontig8bitYCbCr41tile; + break; + case 0x22: + img->put.contig = putcontig8bitYCbCr22tile; + break; + case 0x21: + img->put.contig = putcontig8bitYCbCr21tile; + break; + case 0x12: + img->put.contig = putcontig8bitYCbCr12tile; + break; + case 0x11: + img->put.contig = putcontig8bitYCbCr11tile; + break; + } + } + } + break; + case PHOTOMETRIC_CIELAB: + if (buildMap(img)) { + if (img->bitspersample == 8) + img->put.contig = initCIELabConversion(img); + break; + } } - } - return ((img->put.contig = put) != 0); + return ((img->get!=NULL) && (img->put.contig!=NULL)); } /* @@ -2403,39 +2456,57 @@ pickTileContigCase(TIFFRGBAImage* img) * to the "packed routines. */ static int -pickTileSeparateCase(TIFFRGBAImage* img) +PickSeparateCase(TIFFRGBAImage* img) { - tileSeparateRoutine put = 0; - - if (buildMap(img)) { + img->get = TIFFIsTiled(img->tif) ? gtTileSeparate : gtStripSeparate; + img->put.separate = NULL; switch (img->photometric) { - case PHOTOMETRIC_RGB: - switch (img->bitspersample) { - case 8: - if (!img->Map) { - if (img->alpha == EXTRASAMPLE_ASSOCALPHA) - put = putRGBAAseparate8bittile; - else if (img->alpha == EXTRASAMPLE_UNASSALPHA) - put = putRGBUAseparate8bittile; - else - put = putRGBseparate8bittile; - } else - put = putRGBseparate8bitMaptile; - break; - case 16: - put = putRGBseparate16bittile; - if (!img->Map) { - if (img->alpha == EXTRASAMPLE_ASSOCALPHA) - put = putRGBAAseparate16bittile; - else if (img->alpha == EXTRASAMPLE_UNASSALPHA) - put = putRGBUAseparate16bittile; - } - break; - } - break; + case PHOTOMETRIC_RGB: + switch (img->bitspersample) { + case 8: + if (img->alpha == EXTRASAMPLE_ASSOCALPHA) + img->put.separate = putRGBAAseparate8bittile; + else if (img->alpha == EXTRASAMPLE_UNASSALPHA) + { + img->put.separate = putRGBUAseparate8bittile; + } + else + img->put.separate = putRGBseparate8bittile; + break; + case 16: + if (img->alpha == EXTRASAMPLE_ASSOCALPHA) + { + img->put.separate = putRGBAAseparate16bittile; + } + else if (img->alpha == EXTRASAMPLE_UNASSALPHA) + { + img->put.separate = putRGBUAseparate16bittile; + } + else + { + img->put.separate = putRGBseparate16bittile; + } + break; + } + break; + case PHOTOMETRIC_YCBCR: + if ((img->bitspersample==8) && (img->samplesperpixel==3)) + { + if (initYCbCrConversion(img)!=0) + { + uint16 hs, vs; + TIFFGetFieldDefaulted(img->tif, TIFFTAG_YCBCRSUBSAMPLING, &hs, &vs); + switch ((hs<<4)|vs) { + case 0x11: + img->put.separate = putseparate8bitYCbCr11tile; + break; + /* TODO: add other cases here */ + } + } + } + break; } - } - return ((img->put.separate = put) != 0); + return ((img->get!=NULL) && (img->put.separate!=NULL)); } /* diff --git a/src/libtiff/tif_jpeg.c b/src/libtiff/tif_jpeg.c index 63f943e..90e157e 100644 --- a/src/libtiff/tif_jpeg.c +++ b/src/libtiff/tif_jpeg.c @@ -1,4 +1,4 @@ -/* $Id: tif_jpeg.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_jpeg.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1994-1997 Sam Leffler @@ -154,6 +154,7 @@ typedef struct { TIFFVGetMethod vgetparent; /* super-class method */ TIFFVSetMethod vsetparent; /* super-class method */ + TIFFPrintMethod printdir; /* super-class method */ TIFFStripMethod defsparent; /* super-class method */ TIFFTileMethod deftparent; /* super-class method */ /* pseudo-tag fields */ @@ -714,7 +715,7 @@ JPEGPreDecode(TIFF* tif, tsample_t s) } else { if (segment_height > td->td_rowsperstrip) segment_height = td->td_rowsperstrip; - sp->bytesperline = TIFFScanlineSize(tif); + sp->bytesperline = TIFFOldScanlineSize(tif); } if (td->td_planarconfig == PLANARCONFIG_SEPARATE && s > 0) { /* @@ -724,14 +725,29 @@ JPEGPreDecode(TIFF* tif, tsample_t s) segment_width = TIFFhowmany(segment_width, sp->h_sampling); segment_height = TIFFhowmany(segment_height, sp->v_sampling); } - if (sp->cinfo.d.image_width != segment_width || - sp->cinfo.d.image_height != segment_height) { + if (sp->cinfo.d.image_width < segment_width || + sp->cinfo.d.image_height < segment_height) { TIFFWarningExt(tif->tif_clientdata, module, - "Improper JPEG strip/tile size, expected %dx%d, got %dx%d", - segment_width, - segment_height, - sp->cinfo.d.image_width, - sp->cinfo.d.image_height); + "Improper JPEG strip/tile size, " + "expected %dx%d, got %dx%d", + segment_width, segment_height, + sp->cinfo.d.image_width, + sp->cinfo.d.image_height); + } + if (sp->cinfo.d.image_width > segment_width || + sp->cinfo.d.image_height > segment_height) { + /* + * This case could be dangerous, if the strip or tile size has + * been reported as less than the amount of data jpeg will + * return, some potential security issues arise. Catch this + * case and error out. + */ + TIFFErrorExt(tif->tif_clientdata, module, + "JPEG strip/tile size exceeds expected dimensions," + " expected %dx%d, got %dx%d", + segment_width, segment_height, + sp->cinfo.d.image_width, sp->cinfo.d.image_height); + return (0); } if (sp->cinfo.d.num_components != (td->td_planarconfig == PLANARCONFIG_CONTIG ? @@ -763,6 +779,24 @@ JPEGPreDecode(TIFF* tif, tsample_t s) sp->cinfo.d.comp_info[0].v_samp_factor, sp->h_sampling, sp->v_sampling); + /* + * There are potential security issues here + * for decoders that have already allocated + * buffers based on the expected sampling + * factors. Lets check the sampling factors + * dont exceed what we were expecting. + */ + if (sp->cinfo.d.comp_info[0].h_samp_factor + > sp->h_sampling + || sp->cinfo.d.comp_info[0].v_samp_factor + > sp->v_sampling) { + TIFFErrorExt(tif->tif_clientdata, + module, + "Cannot honour JPEG sampling factors" + " that exceed those specified."); + return (0); + } + /* * XXX: Files written by the Intergraph software * has different sampling factors stored in the @@ -953,119 +987,121 @@ JPEGDecode(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s) /*ARGSUSED*/ static int JPEGDecodeRaw(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s) { - JPEGState *sp = JState(tif); - tsize_t nrows; - (void) s; + JPEGState *sp = JState(tif); + tsize_t nrows; + (void) s; + + /* data is expected to be read in multiples of a scanline */ + if ( (nrows = sp->cinfo.d.image_height) ) { + /* Cb,Cr both have sampling factors 1, so this is correct */ + JDIMENSION clumps_per_line = sp->cinfo.d.comp_info[1].downsampled_width; + int samples_per_clump = sp->samplesperclump; - /* data is expected to be read in multiples of a scanline */ - if ( (nrows = sp->cinfo.d.image_height) ) { - /* Cb,Cr both have sampling factors 1, so this is correct */ - JDIMENSION clumps_per_line = sp->cinfo.d.comp_info[1].downsampled_width; - int samples_per_clump = sp->samplesperclump; - #ifdef JPEG_LIB_MK1 - unsigned short* tmpbuf = _TIFFmalloc(sizeof(unsigned short) * - sp->cinfo.d.output_width * - sp->cinfo.d.num_components); + unsigned short* tmpbuf = _TIFFmalloc(sizeof(unsigned short) * + sp->cinfo.d.output_width * + sp->cinfo.d.num_components); #endif - - do { - jpeg_component_info *compptr; - int ci, clumpoffset; - - /* Reload downsampled-data buffer if needed */ - if (sp->scancount >= DCTSIZE) { - int n = sp->cinfo.d.max_v_samp_factor * DCTSIZE; - if (TIFFjpeg_read_raw_data(sp, sp->ds_buffer, n) - != n) - return (0); - sp->scancount = 0; - } - /* - * Fastest way to unseparate data is to make one pass - * over the scanline for each row of each component. - */ - clumpoffset = 0; /* first sample in clump */ - for (ci = 0, compptr = sp->cinfo.d.comp_info; - ci < sp->cinfo.d.num_components; - ci++, compptr++) { - int hsamp = compptr->h_samp_factor; - int vsamp = compptr->v_samp_factor; - int ypos; - - for (ypos = 0; ypos < vsamp; ypos++) { - JSAMPLE *inptr = sp->ds_buffer[ci][sp->scancount*vsamp + ypos]; + + do { + jpeg_component_info *compptr; + int ci, clumpoffset; + + /* Reload downsampled-data buffer if needed */ + if (sp->scancount >= DCTSIZE) { + int n = sp->cinfo.d.max_v_samp_factor * DCTSIZE; + if (TIFFjpeg_read_raw_data(sp, sp->ds_buffer, n) != n) + return (0); + sp->scancount = 0; + } + /* + * Fastest way to unseparate data is to make one pass + * over the scanline for each row of each component. + */ + clumpoffset = 0; /* first sample in clump */ + for (ci = 0, compptr = sp->cinfo.d.comp_info; + ci < sp->cinfo.d.num_components; + ci++, compptr++) { + int hsamp = compptr->h_samp_factor; + int vsamp = compptr->v_samp_factor; + int ypos; + + for (ypos = 0; ypos < vsamp; ypos++) { + JSAMPLE *inptr = sp->ds_buffer[ci][sp->scancount*vsamp + ypos]; #ifdef JPEG_LIB_MK1 - JSAMPLE *outptr = (JSAMPLE*)tmpbuf + clumpoffset; + JSAMPLE *outptr = (JSAMPLE*)tmpbuf + clumpoffset; #else - JSAMPLE *outptr = (JSAMPLE*)buf + clumpoffset; + JSAMPLE *outptr = (JSAMPLE*)buf + clumpoffset; #endif - JDIMENSION nclump; - - if (hsamp == 1) { - /* fast path for at least Cb and Cr */ - for (nclump = clumps_per_line; nclump-- > 0; ) { - outptr[0] = *inptr++; - outptr += samples_per_clump; - } - } else { - int xpos; - - /* general case */ - for (nclump = clumps_per_line; nclump-- > 0; ) { - for (xpos = 0; xpos < hsamp; xpos++) - outptr[xpos] = *inptr++; - outptr += samples_per_clump; - } - } - clumpoffset += hsamp; - } - } + JDIMENSION nclump; + + if (hsamp == 1) { + /* fast path for at least Cb and Cr */ + for (nclump = clumps_per_line; nclump-- > 0; ) { + outptr[0] = *inptr++; + outptr += samples_per_clump; + } + } else { + int xpos; + + /* general case */ + for (nclump = clumps_per_line; nclump-- > 0; ) { + for (xpos = 0; xpos < hsamp; xpos++) + outptr[xpos] = *inptr++; + outptr += samples_per_clump; + } + } + clumpoffset += hsamp; + } + } #ifdef JPEG_LIB_MK1 - { - if (sp->cinfo.d.data_precision == 8) - { - int i=0; - int len = sp->cinfo.d.output_width * sp->cinfo.d.num_components; - for (i=0; i<len; i++) - { - ((unsigned char*)buf)[i] = tmpbuf[i] & 0xff; - } - } - else - { // 12-bit - int value_pairs = (sp->cinfo.d.output_width - * sp->cinfo.d.num_components) / 2; - int iPair; - for( iPair = 0; iPair < value_pairs; iPair++ ) - { - unsigned char *out_ptr = ((unsigned char *) buf) + iPair * 3; - JSAMPLE *in_ptr = tmpbuf + iPair * 2; - out_ptr[0] = (in_ptr[0] & 0xff0) >> 4; - out_ptr[1] = ((in_ptr[0] & 0xf) << 4) - | ((in_ptr[1] & 0xf00) >> 8); - out_ptr[2] = ((in_ptr[1] & 0xff) >> 0); - } - } - } + { + if (sp->cinfo.d.data_precision == 8) + { + int i=0; + int len = sp->cinfo.d.output_width * sp->cinfo.d.num_components; + for (i=0; i<len; i++) + { + ((unsigned char*)buf)[i] = tmpbuf[i] & 0xff; + } + } + else + { // 12-bit + int value_pairs = (sp->cinfo.d.output_width + * sp->cinfo.d.num_components) / 2; + int iPair; + for( iPair = 0; iPair < value_pairs; iPair++ ) + { + unsigned char *out_ptr = ((unsigned char *) buf) + iPair * 3; + JSAMPLE *in_ptr = tmpbuf + iPair * 2; + out_ptr[0] = (in_ptr[0] & 0xff0) >> 4; + out_ptr[1] = ((in_ptr[0] & 0xf) << 4) + | ((in_ptr[1] & 0xf00) >> 8); + out_ptr[2] = ((in_ptr[1] & 0xff) >> 0); + } + } + } #endif - ++sp->scancount; - ++tif->tif_row; - buf += sp->bytesperline; - cc -= sp->bytesperline; - } while (--nrows > 0); - + sp->scancount ++; + tif->tif_row += sp->v_sampling; + /* increment/decrement of buf and cc is still incorrect, but should not matter + * TODO: resolve this */ + buf += sp->bytesperline; + cc -= sp->bytesperline; + nrows -= sp->v_sampling; + } while (nrows > 0); + #ifdef JPEG_LIB_MK1 - _TIFFfree(tmpbuf); + _TIFFfree(tmpbuf); #endif - } + } - /* Close down the decompressor if done. */ - return sp->cinfo.d.output_scanline < sp->cinfo.d.output_height - || TIFFjpeg_finish_decompress(sp); + /* Close down the decompressor if done. */ + return sp->cinfo.d.output_scanline < sp->cinfo.d.output_height + || TIFFjpeg_finish_decompress(sp); } @@ -1200,9 +1236,9 @@ JPEGSetupEncode(TIFF* tif) /* BITS_IN_JSAMPLE now permits 8 and 12 --- dgilbert */ if (td->td_bitspersample != 8 && td->td_bitspersample != 12) #else - if (td->td_bitspersample != BITS_IN_JSAMPLE ) + if (td->td_bitspersample != BITS_IN_JSAMPLE ) #endif - { + { TIFFErrorExt(tif->tif_clientdata, module, "BitsPerSample %d not allowed for JPEG", (int) td->td_bitspersample); return (0); @@ -1280,7 +1316,7 @@ JPEGPreEncode(TIFF* tif, tsample_t s) segment_height = td->td_imagelength - tif->tif_row; if (segment_height > td->td_rowsperstrip) segment_height = td->td_rowsperstrip; - sp->bytesperline = TIFFScanlineSize(tif); + sp->bytesperline = TIFFOldScanlineSize(tif); } if (td->td_planarconfig == PLANARCONFIG_SEPARATE && s > 0) { /* for PC 2, scale down the strip/tile size @@ -1393,6 +1429,10 @@ JPEGEncode(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s) if (cc % sp->bytesperline) TIFFWarningExt(tif->tif_clientdata, tif->tif_name, "fractional scanline discarded"); + /* The last strip will be limited to image size */ + if( !isTiled(tif) && tif->tif_row+nrows > tif->tif_dir.td_imagelength ) + nrows = tif->tif_dir.td_imagelength - tif->tif_row; + while (nrows-- > 0) { bufptr[0] = (JSAMPROW) buf; if (TIFFjpeg_write_scanlines(sp, bufptr, 1) != 1) @@ -1419,18 +1459,25 @@ JPEGEncodeRaw(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s) int clumpoffset, ci, xpos, ypos; jpeg_component_info* compptr; int samples_per_clump = sp->samplesperclump; + tsize_t bytesperclumpline; (void) s; assert(sp != NULL); - /* data is expected to be supplied in multiples of a scanline */ - nrows = cc / sp->bytesperline; - if (cc % sp->bytesperline) + /* data is expected to be supplied in multiples of a clumpline */ + /* a clumpline is equivalent to v_sampling desubsampled scanlines */ + /* TODO: the following calculation of bytesperclumpline, should substitute calculation of sp->bytesperline, except that it is per v_sampling lines */ + bytesperclumpline = (((sp->cinfo.c.image_width+sp->h_sampling-1)/sp->h_sampling) + *(sp->h_sampling*sp->v_sampling+2)*sp->cinfo.c.data_precision+7) + /8; + + nrows = ( cc / bytesperclumpline ) * sp->v_sampling; + if (cc % bytesperclumpline) TIFFWarningExt(tif->tif_clientdata, tif->tif_name, "fractional scanline discarded"); /* Cb,Cr both have sampling factors 1, so this is correct */ clumps_per_line = sp->cinfo.c.comp_info[1].downsampled_width; - while (nrows-- > 0) { + while (nrows > 0) { /* * Fastest way to separate the data is to make one pass * over the scanline for each row of each component. @@ -1475,9 +1522,9 @@ JPEGEncodeRaw(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s) return (0); sp->scancount = 0; } - if (nrows > 0) - tif->tif_row++; + tif->tif_row += sp->v_sampling; buf += sp->bytesperline; + nrows -= sp->v_sampling; } return (1); } @@ -1529,6 +1576,7 @@ JPEGCleanup(TIFF* tif) tif->tif_tagmethods.vgetfield = sp->vgetparent; tif->tif_tagmethods.vsetfield = sp->vsetparent; + tif->tif_tagmethods.printdir = sp->printdir; if( sp->cinfo_initialized ) TIFFjpeg_destroy(sp); /* release libjpeg resources */ @@ -1540,11 +1588,43 @@ JPEGCleanup(TIFF* tif) _TIFFSetDefaultCompressionState(tif); } +static void +JPEGResetUpsampled( TIFF* tif ) +{ + JPEGState* sp = JState(tif); + TIFFDirectory* td = &tif->tif_dir; + + /* + * Mark whether returned data is up-sampled or not so TIFFStripSize + * and TIFFTileSize return values that reflect the true amount of + * data. + */ + tif->tif_flags &= ~TIFF_UPSAMPLED; + if (td->td_planarconfig == PLANARCONFIG_CONTIG) { + if (td->td_photometric == PHOTOMETRIC_YCBCR && + sp->jpegcolormode == JPEGCOLORMODE_RGB) { + tif->tif_flags |= TIFF_UPSAMPLED; + } else { +#ifdef notdef + if (td->td_ycbcrsubsampling[0] != 1 || + td->td_ycbcrsubsampling[1] != 1) + ; /* XXX what about up-sampling? */ +#endif + } + } + + /* + * Must recalculate cached tile size in case sampling state changed. + * Should we really be doing this now if image size isn't set? + */ + tif->tif_tilesize = isTiled(tif) ? TIFFTileSize(tif) : (tsize_t) -1; +} + static int JPEGVSetField(TIFF* tif, ttag_t tag, va_list ap) { JPEGState* sp = JState(tif); - TIFFDirectory* td = &tif->tif_dir; + const TIFFFieldInfo* fip; uint32 v32; assert(sp != NULL); @@ -1566,34 +1646,21 @@ JPEGVSetField(TIFF* tif, ttag_t tag, va_list ap) return (1); /* pseudo tag */ case TIFFTAG_JPEGCOLORMODE: sp->jpegcolormode = va_arg(ap, int); - /* - * Mark whether returned data is up-sampled or not - * so TIFFStripSize and TIFFTileSize return values - * that reflect the true amount of data. - */ - tif->tif_flags &= ~TIFF_UPSAMPLED; - if (td->td_planarconfig == PLANARCONFIG_CONTIG) { - if (td->td_photometric == PHOTOMETRIC_YCBCR && - sp->jpegcolormode == JPEGCOLORMODE_RGB) { - tif->tif_flags |= TIFF_UPSAMPLED; - } else { - if (td->td_ycbcrsubsampling[0] != 1 || - td->td_ycbcrsubsampling[1] != 1) - ; /* XXX what about up-sampling? */ - } - } - /* - * Must recalculate cached tile size - * in case sampling state changed. - */ - tif->tif_tilesize = isTiled(tif) ? TIFFTileSize(tif) : (tsize_t) -1; + JPEGResetUpsampled( tif ); return (1); /* pseudo tag */ + case TIFFTAG_PHOTOMETRIC: + { + int ret_value = (*sp->vsetparent)(tif, tag, ap); + JPEGResetUpsampled( tif ); + return ret_value; + } case TIFFTAG_JPEGTABLESMODE: sp->jpegtablesmode = va_arg(ap, int); return (1); /* pseudo tag */ case TIFFTAG_YCBCRSUBSAMPLING: /* mark the fact that we have a real ycbcrsubsampling! */ sp->ycbcrsampling_fetched = 1; + /* should we be recomputing upsampling info here? */ return (*sp->vsetparent)(tif, tag, ap); case TIFFTAG_FAXRECVPARAMS: sp->recvparams = va_arg(ap, uint32); @@ -1610,7 +1677,13 @@ JPEGVSetField(TIFF* tif, ttag_t tag, va_list ap) default: return (*sp->vsetparent)(tif, tag, ap); } - TIFFSetFieldBit(tif, _TIFFFieldWithTag(tif, tag)->field_bit); + + if ((fip = _TIFFFieldWithTag(tif, tag))) { + TIFFSetFieldBit(tif, fip->field_bit); + } else { + return (0); + } + tif->tif_flags |= TIFF_DIRTYDIRECT; return (1); } @@ -1706,7 +1779,6 @@ JPEGVGetField(TIFF* tif, ttag_t tag, va_list ap) case TIFFTAG_YCBCRSUBSAMPLING: JPEGFixupTestSubsampling( tif ); return (*sp->vgetparent)(tif, tag, ap); - break; case TIFFTAG_FAXRECVPARAMS: *va_arg(ap, uint32*) = sp->recvparams; break; @@ -1800,8 +1872,18 @@ static int JPEGInitializeLibJPEG( TIFF * tif, int force_encode, int force_decode int data_is_empty = TRUE; int decompress; - if( sp->cinfo_initialized ) - return 1; + + if(sp->cinfo_initialized) + { + if( force_encode && sp->cinfo.comm.is_decompressor ) + TIFFjpeg_destroy( sp ); + else if( force_decode && !sp->cinfo.comm.is_decompressor ) + TIFFjpeg_destroy( sp ); + else + return 1; + + sp->cinfo_initialized = 0; + } /* * Do we have tile data already? Make sure we initialize the @@ -1857,28 +1939,38 @@ TIFFInitJPEG(TIFF* tif, int scheme) assert(scheme == COMPRESSION_JPEG); /* + * Merge codec-specific tag information. + */ + if (!_TIFFMergeFieldInfo(tif, jpegFieldInfo, N(jpegFieldInfo))) { + TIFFErrorExt(tif->tif_clientdata, + "TIFFInitJPEG", + "Merging JPEG codec-specific tags failed"); + return 0; + } + + /* * Allocate state block so tag methods have storage to record values. */ tif->tif_data = (tidata_t) _TIFFmalloc(sizeof (JPEGState)); if (tif->tif_data == NULL) { - TIFFErrorExt(tif->tif_clientdata, "TIFFInitJPEG", "No space for JPEG state block"); - return (0); + TIFFErrorExt(tif->tif_clientdata, + "TIFFInitJPEG", "No space for JPEG state block"); + return 0; } - _TIFFmemset( tif->tif_data, 0, sizeof(JPEGState)); + _TIFFmemset(tif->tif_data, 0, sizeof(JPEGState)); sp = JState(tif); sp->tif = tif; /* back link */ /* - * Merge codec-specific tag information and override parent get/set - * field methods. + * Override parent get/set field methods. */ - _TIFFMergeFieldInfo(tif, jpegFieldInfo, N(jpegFieldInfo)); sp->vgetparent = tif->tif_tagmethods.vgetfield; tif->tif_tagmethods.vgetfield = JPEGVGetField; /* hook for codec tags */ sp->vsetparent = tif->tif_tagmethods.vsetfield; tif->tif_tagmethods.vsetfield = JPEGVSetField; /* hook for codec tags */ + sp->printdir = tif->tif_tagmethods.printdir; tif->tif_tagmethods.printdir = JPEGPrintDir; /* hook for codec tags */ /* Default values for codec-specific fields */ @@ -1944,3 +2036,4 @@ TIFFInitJPEG(TIFF* tif, int scheme) #endif /* JPEG_SUPPORT */ /* vim: set ts=8 sts=8 sw=8 noet: */ + diff --git a/src/libtiff/tif_luv.c b/src/libtiff/tif_luv.c index 484bc4f..db1b746 100644 --- a/src/libtiff/tif_luv.c +++ b/src/libtiff/tif_luv.c @@ -1,4 +1,4 @@ -/* $Id: tif_luv.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_luv.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1997 Greg Ward Larson @@ -451,7 +451,7 @@ LogL16Encode(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) tif->tif_rawcp = op; tif->tif_rawcc = tif->tif_rawdatasize - occ; - return (0); + return (1); } /* @@ -496,7 +496,7 @@ LogLuvEncode24(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) tif->tif_rawcp = op; tif->tif_rawcc = tif->tif_rawdatasize - occ; - return (0); + return (1); } /* @@ -585,7 +585,7 @@ LogLuvEncode32(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) tif->tif_rawcp = op; tif->tif_rawcc = tif->tif_rawdatasize - occ; - return (0); + return (1); } /* @@ -598,7 +598,7 @@ LogLuvEncodeStrip(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) tsize_t rowlen = TIFFScanlineSize(tif); assert(cc%rowlen == 0); - while (cc && (*tif->tif_encoderow)(tif, bp, rowlen, s) == 0) + while (cc && (*tif->tif_encoderow)(tif, bp, rowlen, s) == 1) bp += rowlen, cc -= rowlen; return (cc == 0); } @@ -613,7 +613,7 @@ LogLuvEncodeTile(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) tsize_t rowlen = TIFFTileRowSize(tif); assert(cc%rowlen == 0); - while (cc && (*tif->tif_encoderow)(tif, bp, rowlen, s) == 0) + while (cc && (*tif->tif_encoderow)(tif, bp, rowlen, s) == 1) bp += rowlen, cc -= rowlen; return (cc == 0); } @@ -1200,7 +1200,10 @@ LogL16InitState(TIFF* tif) "No support for converting user data format to LogL"); return (0); } - sp->tbuflen = multiply(td->td_imagewidth, td->td_rowsperstrip); + if( isTiled(tif) ) + sp->tbuflen = multiply(td->td_tilewidth, td->td_tilelength); + else + sp->tbuflen = multiply(td->td_imagewidth, td->td_rowsperstrip); if (multiply(sp->tbuflen, sizeof (int16)) == 0 || (sp->tbuf = (tidata_t*) _TIFFmalloc(sp->tbuflen * sizeof (int16))) == NULL) { TIFFErrorExt(tif->tif_clientdata, module, "%s: No space for SGILog translation buffer", @@ -1298,7 +1301,10 @@ LogLuvInitState(TIFF* tif) "No support for converting user data format to LogLuv"); return (0); } - sp->tbuflen = multiply(td->td_imagewidth, td->td_rowsperstrip); + if( isTiled(tif) ) + sp->tbuflen = multiply(td->td_tilewidth, td->td_tilelength); + else + sp->tbuflen = multiply(td->td_imagewidth, td->td_rowsperstrip); if (multiply(sp->tbuflen, sizeof (uint32)) == 0 || (sp->tbuf = (tidata_t*) _TIFFmalloc(sp->tbuflen * sizeof (uint32))) == NULL) { TIFFErrorExt(tif->tif_clientdata, module, "%s: No space for SGILog translation buffer", @@ -1561,6 +1567,16 @@ TIFFInitSGILog(TIFF* tif, int scheme) assert(scheme == COMPRESSION_SGILOG24 || scheme == COMPRESSION_SGILOG); /* + * Merge codec-specific tag information. + */ + if (!_TIFFMergeFieldInfo(tif, LogLuvFieldInfo, + TIFFArrayCount(LogLuvFieldInfo))) { + TIFFErrorExt(tif->tif_clientdata, module, + "Merging SGILog codec-specific tags failed"); + return 0; + } + + /* * Allocate state block so tag methods have storage to record values. */ tif->tif_data = (tidata_t) _TIFFmalloc(sizeof (LogLuvState)); @@ -1587,9 +1603,9 @@ TIFFInitSGILog(TIFF* tif, int scheme) tif->tif_close = LogLuvClose; tif->tif_cleanup = LogLuvCleanup; - /* override SetField so we can handle our private pseudo-tag */ - _TIFFMergeFieldInfo(tif, LogLuvFieldInfo, - TIFFArrayCount(LogLuvFieldInfo)); + /* + * Override parent get/set field methods. + */ sp->vgetparent = tif->tif_tagmethods.vgetfield; tif->tif_tagmethods.vgetfield = LogLuvVGetField; /* hook for codec tags */ sp->vsetparent = tif->tif_tagmethods.vsetfield; diff --git a/src/libtiff/tif_lzw.c b/src/libtiff/tif_lzw.c index 79d4091..ba47c34 100644 --- a/src/libtiff/tif_lzw.c +++ b/src/libtiff/tif_lzw.c @@ -1,4 +1,4 @@ -/* $Id: tif_lzw.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_lzw.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -224,7 +224,8 @@ LZWSetupDecode(TIFF* tif) if (sp->dec_codetab == NULL) { sp->dec_codetab = (code_t*)_TIFFmalloc(CSIZE*sizeof (code_t)); if (sp->dec_codetab == NULL) { - TIFFErrorExt(tif->tif_clientdata, module, "No space for LZW code table"); + TIFFErrorExt(tif->tif_clientdata, module, + "No space for LZW code table"); return (0); } /* @@ -237,6 +238,11 @@ LZWSetupDecode(TIFF* tif) sp->dec_codetab[code].length = 1; sp->dec_codetab[code].next = NULL; } while (code--); + /* + * Zero-out the unused entries + */ + _TIFFmemset(&sp->dec_codetab[CODE_CLEAR], 0, + (CODE_FIRST - CODE_CLEAR) * sizeof (code_t)); } return (1); } @@ -251,6 +257,11 @@ LZWPreDecode(TIFF* tif, tsample_t s) (void) s; assert(sp != NULL); + if( sp->dec_codetab == NULL ) + { + tif->tif_setupdecode( tif ); + } + /* * Check for old bit-reversed codes. */ @@ -350,6 +361,7 @@ LZWDecode(TIFF* tif, tidata_t op0, tsize_t occ0, tsample_t s) (void) s; assert(sp != NULL); + assert(sp->dec_codetab != NULL); /* * Restart interrupted output operation. */ @@ -408,12 +420,20 @@ LZWDecode(TIFF* tif, tidata_t op0, tsize_t occ0, tsample_t s) break; if (code == CODE_CLEAR) { free_entp = sp->dec_codetab + CODE_FIRST; + _TIFFmemset(free_entp, 0, + (CSIZE - CODE_FIRST) * sizeof (code_t)); nbits = BITS_MIN; nbitsmask = MAXCODE(BITS_MIN); maxcodep = sp->dec_codetab + nbitsmask-1; NextCode(tif, sp, bp, code, GetNextCode); if (code == CODE_EOI) break; + if (code == CODE_CLEAR) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "LZWDecode: Corrupted LZW table at scanline %d", + tif->tif_row); + return (0); + } *op++ = (char)code, occ--; oldcodep = sp->dec_codetab + code; continue; @@ -514,7 +534,7 @@ LZWDecode(TIFF* tif, tidata_t op0, tsize_t occ0, tsample_t s) if (occ > 0) { TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "LZWDecode: Not enough data at scanline %d (short %d bytes)", + "LZWDecode: Not enough data at scanline %d (short %ld bytes)", tif->tif_row, occ); return (0); } @@ -604,12 +624,20 @@ LZWDecodeCompat(TIFF* tif, tidata_t op0, tsize_t occ0, tsample_t s) break; if (code == CODE_CLEAR) { free_entp = sp->dec_codetab + CODE_FIRST; + _TIFFmemset(free_entp, 0, + (CSIZE - CODE_FIRST) * sizeof (code_t)); nbits = BITS_MIN; nbitsmask = MAXCODE(BITS_MIN); maxcodep = sp->dec_codetab + nbitsmask; NextCode(tif, sp, bp, code, GetNextCodeCompat); if (code == CODE_EOI) break; + if (code == CODE_CLEAR) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "LZWDecode: Corrupted LZW table at scanline %d", + tif->tif_row); + return (0); + } *op++ = code, occ--; oldcodep = sp->dec_codetab + code; continue; @@ -647,6 +675,7 @@ LZWDecodeCompat(TIFF* tif, tidata_t op0, tsize_t occ0, tsample_t s) } oldcodep = codep; if (code >= 256) { + char *op_orig = op; /* * Code maps to a string, copy string * value to output (written in reverse). @@ -681,7 +710,7 @@ LZWDecodeCompat(TIFF* tif, tidata_t op0, tsize_t occ0, tsample_t s) tp = op; do { *--tp = codep->value; - } while( (codep = codep->next) != NULL); + } while( (codep = codep->next) != NULL && tp > op_orig); } else *op++ = code, occ--; } @@ -697,7 +726,7 @@ LZWDecodeCompat(TIFF* tif, tidata_t op0, tsize_t occ0, tsample_t s) if (occ > 0) { TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "LZWDecodeCompat: Not enough data at scanline %d (short %d bytes)", + "LZWDecodeCompat: Not enough data at scanline %d (short %ld bytes)", tif->tif_row, occ); return (0); } @@ -734,6 +763,12 @@ LZWPreEncode(TIFF* tif, tsample_t s) (void) s; assert(sp != NULL); + + if( sp->enc_hashtab == NULL ) + { + tif->tif_setupencode( tif ); + } + sp->lzw_nbits = BITS_MIN; sp->lzw_maxcode = MAXCODE(BITS_MIN); sp->lzw_free_ent = CODE_FIRST; @@ -803,6 +838,9 @@ LZWEncode(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) (void) s; if (sp == NULL) return (0); + + assert(sp->enc_hashtab != NULL); + /* * Load local state. */ diff --git a/src/libtiff/tif_next.c b/src/libtiff/tif_next.c index 7223f7b..3cb0085 100644 --- a/src/libtiff/tif_next.c +++ b/src/libtiff/tif_next.c @@ -1,4 +1,4 @@ -/* $Id: tif_next.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_next.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -48,11 +48,10 @@ static int NeXTDecode(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) { - register unsigned char *bp, *op; - register tsize_t cc; - register int n; + unsigned char *bp, *op; + tsize_t cc; tidata_t row; - tsize_t scanline; + tsize_t scanline, n; (void) s; /* @@ -66,7 +65,7 @@ NeXTDecode(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) bp = (unsigned char *)tif->tif_rawcp; cc = tif->tif_rawcc; scanline = tif->tif_scanlinesize; - for (row = buf; (long)occ > 0; occ -= scanline, row += scanline) { + for (row = buf; occ > 0; occ -= scanline, row += scanline) { n = *bp++, cc--; switch (n) { case LITERALROW: @@ -80,10 +79,10 @@ NeXTDecode(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) cc -= scanline; break; case LITERALSPAN: { - int off; + tsize_t off; /* - * The scanline has a literal span - * that begins at some offset. + * The scanline has a literal span that begins at some + * offset. */ off = (bp[0] * 256) + bp[1]; n = (bp[2] * 256) + bp[3]; @@ -95,23 +94,27 @@ NeXTDecode(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) break; } default: { - register int npixels = 0, grey; - unsigned long imagewidth = tif->tif_dir.td_imagewidth; + uint32 npixels = 0, grey; + uint32 imagewidth = tif->tif_dir.td_imagewidth; /* - * The scanline is composed of a sequence - * of constant color ``runs''. We shift - * into ``run mode'' and interpret bytes - * as codes of the form <color><npixels> - * until we've filled the scanline. + * The scanline is composed of a sequence of constant + * color ``runs''. We shift into ``run mode'' and + * interpret bytes as codes of the form + * <color><npixels> until we've filled the scanline. */ op = row; for (;;) { grey = (n>>6) & 0x3; n &= 0x3f; - while (n-- > 0) + /* + * Ensure the run does not exceed the scanline + * bounds, potentially resulting in a security + * issue. + */ + while (n-- > 0 && npixels < imagewidth) SETPIXEL(op, grey); - if (npixels >= (int) imagewidth) + if (npixels >= imagewidth) break; if (cc == 0) goto bad; diff --git a/src/libtiff/tif_ojpeg.c b/src/libtiff/tif_ojpeg.c index ecc5e08..f9f0508 100644 --- a/src/libtiff/tif_ojpeg.c +++ b/src/libtiff/tif_ojpeg.c @@ -1,2629 +1,2424 @@ -/* $Id: tif_ojpeg.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_ojpeg.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ + +/* WARNING: The type of JPEG encapsulation defined by the TIFF Version 6.0 + specification is now totally obsolete and deprecated for new applications and + images. This file was was created solely in order to read unconverted images + still present on some users' computer systems. It will never be extended + to write such files. Writing new-style JPEG compressed TIFFs is implemented + in tif_jpeg.c. + + The code is carefully crafted to robustly read all gathered JPEG-in-TIFF + testfiles, and anticipate as much as possible all other... But still, it may + fail on some. If you encounter problems, please report them on the TIFF + mailing list and/or to Joris Van Damme <info@awaresystems.be>. + + Please read the file called "TIFF Technical Note #2" if you need to be + convinced this compression scheme is bad and breaks TIFF. That document + is linked to from the LibTiff site <http://www.remotesensing.org/libtiff/> + and from AWare Systems' TIFF section + <http://www.awaresystems.be/imaging/tiff.html>. It is also absorbed + in Adobe's specification supplements, marked "draft" up to this day, but + supported by the TIFF community. + + This file interfaces with Release 6B of the JPEG Library written by the + Independent JPEG Group. Previous versions of this file required a hack inside + the LibJpeg library. This version no longer requires that. Remember to + remove the hack if you update from the old version. + + Copyright (c) Joris Van Damme <info@awaresystems.be> + Copyright (c) AWare Systems <http://www.awaresystems.be/> + + The licence agreement for this file is the same as the rest of the LibTiff + library. + + IN NO EVENT SHALL JORIS VAN DAMME OR AWARE SYSTEMS BE LIABLE FOR + ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + OF THIS SOFTWARE. + + Joris Van Damme and/or AWare Systems may be available for custom + developement. If you like what you see, and need anything similar or related, + contact <info@awaresystems.be>. +*/ + +/* What is what, and what is not? + + This decoder starts with an input stream, that is essentially the JpegInterchangeFormat + stream, if any, followed by the strile data, if any. This stream is read in + OJPEGReadByte and related functions. + + It analyzes the start of this stream, until it encounters non-marker data, i.e. + compressed image data. Some of the header markers it sees have no actual content, + like the SOI marker, and APP/COM markers that really shouldn't even be there. Some + other markers do have content, and the valuable bits and pieces of information + in these markers are saved, checking all to verify that the stream is more or + less within expected bounds. This happens inside the OJPEGReadHeaderInfoSecStreamXxx + functions. + + Some OJPEG imagery contains no valid JPEG header markers. This situation is picked + up on if we've seen no SOF marker when we're at the start of the compressed image + data. In this case, the tables are read from JpegXxxTables tags, and the other + bits and pieces of information is initialized to its most basic value. This is + implemented in the OJPEGReadHeaderInfoSecTablesXxx functions. + + When this is complete, a good and valid JPEG header can be assembled, and this is + passed through to LibJpeg. When that's done, the remainder of the input stream, i.e. + the compressed image data, can be passed through unchanged. This is done in + OJPEGWriteStream functions. + + LibTiff rightly expects to know the subsampling values before decompression. Just like + in new-style JPEG-in-TIFF, though, or even more so, actually, the YCbCrsubsampling + tag is notoriously unreliable. To correct these tag values with the ones inside + the JPEG stream, the first part of the input stream is pre-scanned in + OJPEGSubsamplingCorrect, making no note of any other data, reporting no warnings + or errors, up to the point where either these values are read, or it's clear they + aren't there. This means that some of the data is read twice, but we feel speed + in correcting these values is important enough to warrant this sacrifice. Allthough + there is currently no define or other configuration mechanism to disable this behaviour, + the actual header scanning is build to robustly respond with error report if it + should encounter an uncorrected mismatch of subsampling values. See + OJPEGReadHeaderInfoSecStreamSof. + + The restart interval and restart markers are the most tricky part... The restart + interval can be specified in a tag. It can also be set inside the input JPEG stream. + It can be used inside the input JPEG stream. If reading from strile data, we've + consistenly discovered the need to insert restart markers in between the different + striles, as is also probably the most likely interpretation of the original TIFF 6.0 + specification. With all this setting of interval, and actual use of markers that is not + predictable at the time of valid JPEG header assembly, the restart thing may turn + out the Achilles heel of this implementation. Fortunately, most OJPEG writer vendors + succeed in reading back what they write, which may be the reason why we've been able + to discover ways that seem to work. + + Some special provision is made for planarconfig separate OJPEG files. These seem + to consistently contain header info, a SOS marker, a plane, SOS marker, plane, SOS, + and plane. This may or may not be a valid JPEG configuration, we don't know and don't + care. We want LibTiff to be able to access the planes individually, without huge + buffering inside LibJpeg, anyway. So we compose headers to feed to LibJpeg, in this + case, that allow us to pass a single plane such that LibJpeg sees a valid + single-channel JPEG stream. Locating subsequent SOS markers, and thus subsequent + planes, is done inside OJPEGReadSecondarySos. + + The benefit of the scheme is... that it works, basically. We know of no other that + does. It works without checking software tag, or otherwise going about things in an + OJPEG flavor specific manner. Instead, it is a single scheme, that covers the cases + with and without JpegInterchangeFormat, with and without striles, with part of + the header in JpegInterchangeFormat and remainder in first strile, etc. It is forgiving + and robust, may likely work with OJPEG flavors we've not seen yet, and makes most out + of the data. + + Another nice side-effect is that a complete JPEG single valid stream is build if + planarconfig is not separate (vast majority). We may one day use that to build + converters to JPEG, and/or to new-style JPEG compression inside TIFF. + + A dissadvantage is the lack of random access to the individual striles. This is the + reason for much of the complicated restart-and-position stuff inside OJPEGPreDecode. + Applications would do well accessing all striles in order, as this will result in + a single sequential scan of the input stream, and no restarting of LibJpeg decoding + session. +*/ + #include "tiffiop.h" #ifdef OJPEG_SUPPORT -/* JPEG Compression support, as per the original TIFF 6.0 specification. - - WARNING: KLUDGE ALERT! The type of JPEG encapsulation defined by the TIFF - Version 6.0 specification is now totally obsolete and - deprecated for new applications and images. This file is an unsupported hack - that was created solely in order to read (but NOT write!) a few old, - unconverted images still present on some users' computer systems. The code - isn't pretty or robust, and it won't read every "old format" JPEG-in-TIFF - file (see Samuel Leffler's draft "TIFF Technical Note No. 2" for a long and - incomplete list of known problems), but it seems to work well enough in the - few cases of practical interest to the author; so, "caveat emptor"! This - file should NEVER be enhanced to write new images using anything other than - the latest approved JPEG-in-TIFF encapsulation method, implemented by the - "tif_jpeg.c" file elsewhere in this library. - - This file interfaces with Release 6B of the JPEG Library written by theu - Independent JPEG Group, which you can find on the Internet at: - ftp://ftp.uu.net:/graphics/jpeg/. - - The "C" Preprocessor macros, "[CD]_LOSSLESS_SUPPORTED", are defined by your - JPEG Library Version 6B only if you have applied a (massive!) patch by Ken - Murchison of Oceana Matrix Ltd. <ken@oceana.com> to support lossless Huffman - encoding (TIFF "JPEGProc" tag value = 14). This patch can be found on the - Internet at: ftp://ftp.oceana.com/pub/ljpeg-6b.tar.gz. - - Some old files produced by the Wang Imaging application for Microsoft Windows - apparently can be decoded only with a special patch to the JPEG Library, - which defines a subroutine named "jpeg_reset_huff_decode()" in its "jdhuff.c" - module (the "jdshuff.c" module, if Ken Murchison's patch has been applied). - Unfortunately the patch differs slightly in each case, and some TIFF Library - have reported problems finding the code, so both versions appear below; you - should carefully extract and apply only the version that applies to your JPEG - Library! - - Contributed by Scott Marovich <marovich@hpl.hp.com> with considerable help - from Charles Auer <Bumble731@msn.com> to unravel the mysteries of image files - created by the Wang Imaging application for Microsoft Windows. -*/ -#if 0 /* Patch for JPEG Library WITHOUT lossless Huffman coding */ -*** jdhuff.c.orig Mon Oct 20 17:51:10 1997 ---- jdhuff.c Sun Nov 11 17:33:58 2001 -*************** -*** 648,651 **** ---- 648,683 ---- - for (i = 0; i < NUM_HUFF_TBLS; i++) { - entropy->dc_derived_tbls[i] = entropy->ac_derived_tbls[i] = NULL; - } - } -+ -+ /* -+ * BEWARE OF KLUDGE: This subroutine is a hack for decoding illegal JPEG-in- -+ * TIFF encapsulations produced by Microsoft's Wang Imaging -+ * for Windows application with the public-domain TIFF Library. Based upon an -+ * examination of selected output files, this program apparently divides a JPEG -+ * bit-stream into consecutive horizontal TIFF "strips", such that the JPEG -+ * encoder's/decoder's DC coefficients for each image component are reset before -+ * each "strip". Moreover, a "strip" is not necessarily encoded in a multiple -+ * of 8 bits, so one must sometimes discard 1-7 bits at the end of each "strip" -+ * for alignment to the next input-Byte storage boundary. IJG JPEG Library -+ * decoder state is not normally exposed to client applications, so this sub- -+ * routine provides the TIFF Library with a "hook" to make these corrections. -+ * It should be called after "jpeg_start_decompress()" and before -+ * "jpeg_finish_decompress()", just before decoding each "strip" using -+ * "jpeg_read_raw_data()" or "jpeg_read_scanlines()". -+ * -+ * This kludge is not sanctioned or supported by the Independent JPEG Group, and -+ * future changes to the IJG JPEG Library might invalidate it. Do not send bug -+ * reports about this code to IJG developers. Instead, contact the author for -+ * advice: Scott B. Marovich <marovich@hpl.hp.com>, Hewlett-Packard Labs, 6/01. -+ */ -+ GLOBAL(void) -+ jpeg_reset_huff_decode (register j_decompress_ptr cinfo) -+ { register huff_entropy_ptr entropy = (huff_entropy_ptr)cinfo->entropy; -+ register int ci = 0; -+ -+ /* Discard encoded input bits, up to the next Byte boundary */ -+ entropy->bitstate.bits_left &= ~7; -+ /* Re-initialize DC predictions to 0 */ -+ do entropy->saved.last_dc_val[ci] = 0; while (++ci < cinfo->comps_in_scan); -+ } -#endif /* Patch for JPEG Library WITHOUT lossless Huffman coding */ -#if 0 /* Patch for JPEG Library WITH lossless Huffman coding */ -*** jdshuff.c.orig Mon Mar 11 16:44:54 2002 ---- jdshuff.c Mon Mar 11 16:44:54 2002 -*************** -*** 357,360 **** ---- 357,393 ---- - for (i = 0; i < NUM_HUFF_TBLS; i++) { - entropy->dc_derived_tbls[i] = entropy->ac_derived_tbls[i] = NULL; - } - } -+ -+ /* -+ * BEWARE OF KLUDGE: This subroutine is a hack for decoding illegal JPEG-in- -+ * TIFF encapsulations produced by Microsoft's Wang Imaging -+ * for Windows application with the public-domain TIFF Library. Based upon an -+ * examination of selected output files, this program apparently divides a JPEG -+ * bit-stream into consecutive horizontal TIFF "strips", such that the JPEG -+ * encoder's/decoder's DC coefficients for each image component are reset before -+ * each "strip". Moreover, a "strip" is not necessarily encoded in a multiple -+ * of 8 bits, so one must sometimes discard 1-7 bits at the end of each "strip" -+ * for alignment to the next input-Byte storage boundary. IJG JPEG Library -+ * decoder state is not normally exposed to client applications, so this sub- -+ * routine provides the TIFF Library with a "hook" to make these corrections. -+ * It should be called after "jpeg_start_decompress()" and before -+ * "jpeg_finish_decompress()", just before decoding each "strip" using -+ * "jpeg_read_raw_data()" or "jpeg_read_scanlines()". -+ * -+ * This kludge is not sanctioned or supported by the Independent JPEG Group, and -+ * future changes to the IJG JPEG Library might invalidate it. Do not send bug -+ * reports about this code to IJG developers. Instead, contact the author for -+ * advice: Scott B. Marovich <marovich@hpl.hp.com>, Hewlett-Packard Labs, 6/01. -+ */ -+ GLOBAL(void) -+ jpeg_reset_huff_decode (register j_decompress_ptr cinfo) -+ { register shuff_entropy_ptr entropy = (shuff_entropy_ptr) -+ ((j_lossy_d_ptr)cinfo->codec)->entropy_private; -+ register int ci = 0; -+ -+ /* Discard encoded input bits, up to the next Byte boundary */ -+ entropy->bitstate.bits_left &= ~7; -+ /* Re-initialize DC predictions to 0 */ -+ do entropy->saved.last_dc_val[ci] = 0; while (++ci < cinfo->comps_in_scan); -+ } -#endif /* Patch for JPEG Library WITH lossless Huffman coding */ +/* Configuration defines here are: + * JPEG_ENCAP_EXTERNAL: The normal way to call libjpeg, uses longjump. In some environments, + * like eg LibTiffDelphi, this is not possible. For this reason, the actual calls to + * libjpeg, with longjump stuff, are encapsulated in dedicated functions. When + * JPEG_ENCAP_EXTERNAL is defined, these encapsulating functions are declared external + * to this unit, and can be defined elsewhere to use stuff other then longjump. + * The default mode, without JPEG_ENCAP_EXTERNAL, implements the call encapsulators + * here, internally, with normal longjump. + * SETJMP, LONGJMP, JMP_BUF: On some machines/environments a longjump equivalent is + * conviniently available, but still it may be worthwhile to use _setjmp or sigsetjmp + * in place of plain setjmp. These macros will make it easier. It is useless + * to fiddle with these if you define JPEG_ENCAP_EXTERNAL. + * OJPEG_BUFFER: Define the size of the desired buffer here. Should be small enough so as to guarantee + * instant processing, optimal streaming and optimal use of processor cache, but also big + * enough so as to not result in significant call overhead. It should be at least a few + * bytes to accomodate some structures (this is verified in asserts), but it would not be + * sensible to make it this small anyway, and it should be at most 64K since it is indexed + * with uint16. We recommend 2K. + * EGYPTIANWALK: You could also define EGYPTIANWALK here, but it is not used anywhere and has + * absolutely no effect. That is why most people insist the EGYPTIANWALK is a bit silly. + */ + +/* #define LIBJPEG_ENCAP_EXTERNAL */ +#define SETJMP(jbuf) setjmp(jbuf) +#define LONGJMP(jbuf,code) longjmp(jbuf,code) +#define JMP_BUF jmp_buf +#define OJPEG_BUFFER 2048 +/* define EGYPTIANWALK */ + +#define JPEG_MARKER_SOF0 0xC0 +#define JPEG_MARKER_SOF1 0xC1 +#define JPEG_MARKER_SOF3 0xC3 +#define JPEG_MARKER_DHT 0xC4 +#define JPEG_MARKER_RST0 0XD0 +#define JPEG_MARKER_SOI 0xD8 +#define JPEG_MARKER_EOI 0xD9 +#define JPEG_MARKER_SOS 0xDA +#define JPEG_MARKER_DQT 0xDB +#define JPEG_MARKER_DRI 0xDD +#define JPEG_MARKER_APP0 0xE0 +#define JPEG_MARKER_COM 0xFE + +#define FIELD_OJPEG_JPEGINTERCHANGEFORMAT (FIELD_CODEC+0) +#define FIELD_OJPEG_JPEGINTERCHANGEFORMATLENGTH (FIELD_CODEC+1) +#define FIELD_OJPEG_JPEGQTABLES (FIELD_CODEC+2) +#define FIELD_OJPEG_JPEGDCTABLES (FIELD_CODEC+3) +#define FIELD_OJPEG_JPEGACTABLES (FIELD_CODEC+4) +#define FIELD_OJPEG_JPEGPROC (FIELD_CODEC+5) +#define FIELD_OJPEG_JPEGRESTARTINTERVAL (FIELD_CODEC+6) +#define FIELD_OJPEG_COUNT 7 + +static const TIFFFieldInfo ojpeg_field_info[] = { + {TIFFTAG_JPEGIFOFFSET,1,1,TIFF_LONG,FIELD_OJPEG_JPEGINTERCHANGEFORMAT,TRUE,FALSE,"JpegInterchangeFormat"}, + {TIFFTAG_JPEGIFBYTECOUNT,1,1,TIFF_LONG,FIELD_OJPEG_JPEGINTERCHANGEFORMATLENGTH,TRUE,FALSE,"JpegInterchangeFormatLength"}, + {TIFFTAG_JPEGQTABLES,TIFF_VARIABLE,TIFF_VARIABLE,TIFF_LONG,FIELD_OJPEG_JPEGQTABLES,FALSE,TRUE,"JpegQTables"}, + {TIFFTAG_JPEGDCTABLES,TIFF_VARIABLE,TIFF_VARIABLE,TIFF_LONG,FIELD_OJPEG_JPEGDCTABLES,FALSE,TRUE,"JpegDcTables"}, + {TIFFTAG_JPEGACTABLES,TIFF_VARIABLE,TIFF_VARIABLE,TIFF_LONG,FIELD_OJPEG_JPEGACTABLES,FALSE,TRUE,"JpegAcTables"}, + {TIFFTAG_JPEGPROC,1,1,TIFF_SHORT,FIELD_OJPEG_JPEGPROC,FALSE,FALSE,"JpegProc"}, + {TIFFTAG_JPEGRESTARTINTERVAL,1,1,TIFF_SHORT,FIELD_OJPEG_JPEGRESTARTINTERVAL,FALSE,FALSE,"JpegRestartInterval"}, +}; + +#ifndef LIBJPEG_ENCAP_EXTERNAL #include <setjmp.h> -#include <stdio.h> -#ifdef FAR -#undef FAR /* Undefine FAR to avoid conflict with JPEG definition */ #endif -#define JPEG_INTERNALS /* Include "jpegint.h" for "DSTATE_*" symbols */ -#define JPEG_CJPEG_DJPEG /* Include all Version 6B+ "jconfig.h" options */ -#undef INLINE + #include "jpeglib.h" -#undef JPEG_CJPEG_DJPEG -#undef JPEG_INTERNALS +#include "jerror.h" -/* Hack for files produced by Wang Imaging application on Microsoft Windows */ -extern void jpeg_reset_huff_decode(j_decompress_ptr); +typedef struct jpeg_error_mgr jpeg_error_mgr; +typedef struct jpeg_common_struct jpeg_common_struct; +typedef struct jpeg_decompress_struct jpeg_decompress_struct; +typedef struct jpeg_source_mgr jpeg_source_mgr; -/* On some machines, it may be worthwhile to use "_setjmp()" or "sigsetjmp()" - instead of "setjmp()". These macros make it easier: -*/ -#define SETJMP(jbuf)setjmp(jbuf) -#define LONGJMP(jbuf,code)longjmp(jbuf,code) -#define JMP_BUF jmp_buf +typedef enum { + osibsNotSetYet, + osibsJpegInterchangeFormat, + osibsStrile, + osibsEof +} OJPEGStateInBufferSource; + +typedef enum { + ososSoi, + ososQTable0,ososQTable1,ososQTable2,ososQTable3, + ososDcTable0,ososDcTable1,ososDcTable2,ososDcTable3, + ososAcTable0,ososAcTable1,ososAcTable2,ososAcTable3, + ososDri, + ososSof, + ososSos, + ososCompressed, + ososRst, + ososEoi +} OJPEGStateOutState; + +typedef struct { + TIFF* tif; + #ifndef LIBJPEG_ENCAP_EXTERNAL + JMP_BUF exit_jmpbuf; + #endif + TIFFVGetMethod vgetparent; + TIFFVSetMethod vsetparent; + toff_t file_size; + uint32 image_width; + uint32 image_length; + uint32 strile_width; + uint32 strile_length; + uint32 strile_length_total; + uint8 samples_per_pixel; + uint8 plane_sample_offset; + uint8 samples_per_pixel_per_plane; + toff_t jpeg_interchange_format; + toff_t jpeg_interchange_format_length; + uint8 jpeg_proc; + uint8 subsamplingcorrect; + uint8 subsamplingcorrect_done; + uint8 subsampling_tag; + uint8 subsampling_hor; + uint8 subsampling_ver; + uint8 subsampling_force_desubsampling_inside_decompression; + uint8 qtable_offset_count; + uint8 dctable_offset_count; + uint8 actable_offset_count; + toff_t qtable_offset[3]; + toff_t dctable_offset[3]; + toff_t actable_offset[3]; + uint8* qtable[4]; + uint8* dctable[4]; + uint8* actable[4]; + uint16 restart_interval; + uint8 restart_index; + uint8 sof_log; + uint8 sof_marker_id; + uint32 sof_x; + uint32 sof_y; + uint8 sof_c[3]; + uint8 sof_hv[3]; + uint8 sof_tq[3]; + uint8 sos_cs[3]; + uint8 sos_tda[3]; + struct { + uint8 log; + OJPEGStateInBufferSource in_buffer_source; + tstrile_t in_buffer_next_strile; + toff_t in_buffer_file_pos; + toff_t in_buffer_file_togo; + } sos_end[3]; + uint8 readheader_done; + uint8 writeheader_done; + tsample_t write_cursample; + tstrile_t write_curstrile; + uint8 libjpeg_session_active; + uint8 libjpeg_jpeg_query_style; + jpeg_error_mgr libjpeg_jpeg_error_mgr; + jpeg_decompress_struct libjpeg_jpeg_decompress_struct; + jpeg_source_mgr libjpeg_jpeg_source_mgr; + uint8 subsampling_convert_log; + uint32 subsampling_convert_ylinelen; + uint32 subsampling_convert_ylines; + uint32 subsampling_convert_clinelen; + uint32 subsampling_convert_clines; + uint32 subsampling_convert_ybuflen; + uint32 subsampling_convert_cbuflen; + uint32 subsampling_convert_ycbcrbuflen; + uint8* subsampling_convert_ycbcrbuf; + uint8* subsampling_convert_ybuf; + uint8* subsampling_convert_cbbuf; + uint8* subsampling_convert_crbuf; + uint32 subsampling_convert_ycbcrimagelen; + uint8** subsampling_convert_ycbcrimage; + uint32 subsampling_convert_clinelenout; + uint32 subsampling_convert_state; + uint32 bytes_per_line; /* if the codec outputs subsampled data, a 'line' in bytes_per_line */ + uint32 lines_per_strile; /* and lines_per_strile means subsampling_ver desubsampled rows */ + OJPEGStateInBufferSource in_buffer_source; + tstrile_t in_buffer_next_strile; + tstrile_t in_buffer_strile_count; + toff_t in_buffer_file_pos; + uint8 in_buffer_file_pos_log; + toff_t in_buffer_file_togo; + uint16 in_buffer_togo; + uint8* in_buffer_cur; + uint8 in_buffer[OJPEG_BUFFER]; + OJPEGStateOutState out_state; + uint8 out_buffer[OJPEG_BUFFER]; + uint8* skip_buffer; +} OJPEGState; + +static int OJPEGVGetField(TIFF* tif, ttag_t tag, va_list ap); +static int OJPEGVSetField(TIFF* tif, ttag_t tag, va_list ap); +static void OJPEGPrintDir(TIFF* tif, FILE* fd, long flags); + +static int OJPEGSetupDecode(TIFF* tif); +static int OJPEGPreDecode(TIFF* tif, tsample_t s); +static int OJPEGPreDecodeSkipRaw(TIFF* tif); +static int OJPEGPreDecodeSkipScanlines(TIFF* tif); +static int OJPEGDecode(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s); +static int OJPEGDecodeRaw(TIFF* tif, tidata_t buf, tsize_t cc); +static int OJPEGDecodeScanlines(TIFF* tif, tidata_t buf, tsize_t cc); +static void OJPEGPostDecode(TIFF* tif, tidata_t buf, tsize_t cc); +static int OJPEGSetupEncode(TIFF* tif); +static int OJPEGPreEncode(TIFF* tif, tsample_t s); +static int OJPEGEncode(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s); +static int OJPEGPostEncode(TIFF* tif); +static void OJPEGCleanup(TIFF* tif); + +static void OJPEGSubsamplingCorrect(TIFF* tif); +static int OJPEGReadHeaderInfo(TIFF* tif); +static int OJPEGReadSecondarySos(TIFF* tif, tsample_t s); +static int OJPEGWriteHeaderInfo(TIFF* tif); +static void OJPEGLibjpegSessionAbort(TIFF* tif); + +static int OJPEGReadHeaderInfoSec(TIFF* tif); +static int OJPEGReadHeaderInfoSecStreamDri(TIFF* tif); +static int OJPEGReadHeaderInfoSecStreamDqt(TIFF* tif); +static int OJPEGReadHeaderInfoSecStreamDht(TIFF* tif); +static int OJPEGReadHeaderInfoSecStreamSof(TIFF* tif, uint8 marker_id); +static int OJPEGReadHeaderInfoSecStreamSos(TIFF* tif); +static int OJPEGReadHeaderInfoSecTablesQTable(TIFF* tif); +static int OJPEGReadHeaderInfoSecTablesDcTable(TIFF* tif); +static int OJPEGReadHeaderInfoSecTablesAcTable(TIFF* tif); + +static int OJPEGReadBufferFill(OJPEGState* sp); +static int OJPEGReadByte(OJPEGState* sp, uint8* byte); +static int OJPEGReadBytePeek(OJPEGState* sp, uint8* byte); +static void OJPEGReadByteAdvance(OJPEGState* sp); +static int OJPEGReadWord(OJPEGState* sp, uint16* word); +static int OJPEGReadBlock(OJPEGState* sp, uint16 len, void* mem); +static void OJPEGReadSkip(OJPEGState* sp, uint16 len); + +static int OJPEGWriteStream(TIFF* tif, void** mem, uint32* len); +static void OJPEGWriteStreamSoi(TIFF* tif, void** mem, uint32* len); +static void OJPEGWriteStreamQTable(TIFF* tif, uint8 table_index, void** mem, uint32* len); +static void OJPEGWriteStreamDcTable(TIFF* tif, uint8 table_index, void** mem, uint32* len); +static void OJPEGWriteStreamAcTable(TIFF* tif, uint8 table_index, void** mem, uint32* len); +static void OJPEGWriteStreamDri(TIFF* tif, void** mem, uint32* len); +static void OJPEGWriteStreamSof(TIFF* tif, void** mem, uint32* len); +static void OJPEGWriteStreamSos(TIFF* tif, void** mem, uint32* len); +static int OJPEGWriteStreamCompressed(TIFF* tif, void** mem, uint32* len); +static void OJPEGWriteStreamRst(TIFF* tif, void** mem, uint32* len); +static void OJPEGWriteStreamEoi(TIFF* tif, void** mem, uint32* len); + +#ifdef LIBJPEG_ENCAP_EXTERNAL +extern int jpeg_create_decompress_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo); +extern int jpeg_read_header_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, uint8 require_image); +extern int jpeg_start_decompress_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo); +extern int jpeg_read_scanlines_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, void* scanlines, uint32 max_lines); +extern int jpeg_read_raw_data_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, void* data, uint32 max_lines); +extern void jpeg_encap_unwind(TIFF* tif); +#else +static int jpeg_create_decompress_encap(OJPEGState* sp, jpeg_decompress_struct* j); +static int jpeg_read_header_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, uint8 require_image); +static int jpeg_start_decompress_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo); +static int jpeg_read_scanlines_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, void* scanlines, uint32 max_lines); +static int jpeg_read_raw_data_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, void* data, uint32 max_lines); +static void jpeg_encap_unwind(TIFF* tif); +#endif -#define TIFFTAG_WANG_PAGECONTROL 32934 +static void OJPEGLibjpegJpegErrorMgrOutputMessage(jpeg_common_struct* cinfo); +static void OJPEGLibjpegJpegErrorMgrErrorExit(jpeg_common_struct* cinfo); +static void OJPEGLibjpegJpegSourceMgrInitSource(jpeg_decompress_struct* cinfo); +static boolean OJPEGLibjpegJpegSourceMgrFillInputBuffer(jpeg_decompress_struct* cinfo); +static void OJPEGLibjpegJpegSourceMgrSkipInputData(jpeg_decompress_struct* cinfo, long num_bytes); +static boolean OJPEGLibjpegJpegSourceMgrResyncToRestart(jpeg_decompress_struct* cinfo, int desired); +static void OJPEGLibjpegJpegSourceMgrTermSource(jpeg_decompress_struct* cinfo); -/* Bit-vector offsets for keeping track of TIFF records that we've parsed. */ +int +TIFFInitOJPEG(TIFF* tif, int scheme) +{ + static const char module[]="TIFFInitOJPEG"; + OJPEGState* sp; + + assert(scheme==COMPRESSION_OJPEG); + + /* + * Merge codec-specific tag information. + */ + if (!_TIFFMergeFieldInfo(tif,ojpeg_field_info,FIELD_OJPEG_COUNT)) { + TIFFErrorExt(tif->tif_clientdata, module, + "Merging Old JPEG codec-specific tags failed"); + return 0; + } -#define FIELD_JPEGPROC FIELD_CODEC -#define FIELD_JPEGIFOFFSET (FIELD_CODEC+1) -#define FIELD_JPEGIFBYTECOUNT (FIELD_CODEC+2) -#define FIELD_JPEGRESTARTINTERVAL (FIELD_CODEC+3) -#define FIELD_JPEGTABLES (FIELD_CODEC+4) /* New, post-6.0 JPEG-in-TIFF tag! */ -#define FIELD_JPEGLOSSLESSPREDICTORS (FIELD_CODEC+5) -#define FIELD_JPEGPOINTTRANSFORM (FIELD_CODEC+6) -#define FIELD_JPEGQTABLES (FIELD_CODEC+7) -#define FIELD_JPEGDCTABLES (FIELD_CODEC+8) -#define FIELD_JPEGACTABLES (FIELD_CODEC+9) -#define FIELD_WANG_PAGECONTROL (FIELD_CODEC+10) -#define FIELD_JPEGCOLORMODE (FIELD_CODEC+11) + /* state block */ + sp=_TIFFmalloc(sizeof(OJPEGState)); + if (sp==NULL) + { + TIFFErrorExt(tif->tif_clientdata,module,"No space for OJPEG state block"); + return(0); + } + _TIFFmemset(sp,0,sizeof(OJPEGState)); + sp->tif=tif; + sp->jpeg_proc=1; + sp->subsampling_hor=2; + sp->subsampling_ver=2; + TIFFSetField(tif,TIFFTAG_YCBCRSUBSAMPLING,2,2); + /* tif codec methods */ + tif->tif_setupdecode=OJPEGSetupDecode; + tif->tif_predecode=OJPEGPreDecode; + tif->tif_postdecode=OJPEGPostDecode; + tif->tif_decoderow=OJPEGDecode; + tif->tif_decodestrip=OJPEGDecode; + tif->tif_decodetile=OJPEGDecode; + tif->tif_setupencode=OJPEGSetupEncode; + tif->tif_preencode=OJPEGPreEncode; + tif->tif_postencode=OJPEGPostEncode; + tif->tif_encoderow=OJPEGEncode; + tif->tif_encodestrip=OJPEGEncode; + tif->tif_encodetile=OJPEGEncode; + tif->tif_cleanup=OJPEGCleanup; + tif->tif_data=(tidata_t)sp; + /* tif tag methods */ + sp->vgetparent=tif->tif_tagmethods.vgetfield; + tif->tif_tagmethods.vgetfield=OJPEGVGetField; + sp->vsetparent=tif->tif_tagmethods.vsetfield; + tif->tif_tagmethods.vsetfield=OJPEGVSetField; + tif->tif_tagmethods.printdir=OJPEGPrintDir; + /* Some OJPEG files don't have strip or tile offsets or bytecounts tags. + Some others do, but have totally meaningless or corrupt values + in these tags. In these cases, the JpegInterchangeFormat stream is + reliable. In any case, this decoder reads the compressed data itself, + from the most reliable locations, and we need to notify encapsulating + LibTiff not to read raw strips or tiles for us. */ + tif->tif_flags|=TIFF_NOREADRAW; + return(1); +} -typedef struct jpeg_destination_mgr jpeg_destination_mgr; -typedef struct jpeg_source_mgr jpeg_source_mgr; -typedef struct jpeg_error_mgr jpeg_error_mgr; +static int +OJPEGVGetField(TIFF* tif, ttag_t tag, va_list ap) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + switch(tag) + { + case TIFFTAG_JPEGIFOFFSET: + *va_arg(ap,uint32*)=(uint32)sp->jpeg_interchange_format; + break; + case TIFFTAG_JPEGIFBYTECOUNT: + *va_arg(ap,uint32*)=(uint32)sp->jpeg_interchange_format_length; + break; + case TIFFTAG_YCBCRSUBSAMPLING: + if (sp->subsamplingcorrect_done==0) + OJPEGSubsamplingCorrect(tif); + *va_arg(ap,uint16*)=(uint16)sp->subsampling_hor; + *va_arg(ap,uint16*)=(uint16)sp->subsampling_ver; + break; + case TIFFTAG_JPEGQTABLES: + *va_arg(ap,uint32*)=(uint32)sp->qtable_offset_count; + *va_arg(ap,void**)=(void*)sp->qtable_offset; + break; + case TIFFTAG_JPEGDCTABLES: + *va_arg(ap,uint32*)=(uint32)sp->dctable_offset_count; + *va_arg(ap,void**)=(void*)sp->dctable_offset; + break; + case TIFFTAG_JPEGACTABLES: + *va_arg(ap,uint32*)=(uint32)sp->actable_offset_count; + *va_arg(ap,void**)=(void*)sp->actable_offset; + break; + case TIFFTAG_JPEGPROC: + *va_arg(ap,uint16*)=(uint16)sp->jpeg_proc; + break; + case TIFFTAG_JPEGRESTARTINTERVAL: + *va_arg(ap,uint16*)=sp->restart_interval; + break; + default: + return (*sp->vgetparent)(tif,tag,ap); + } + return (1); +} -/* State variable for each open TIFF file that uses "libjpeg" for JPEG - decompression. (Note: This file should NEVER perform JPEG compression - except in the manner implemented by the "tif_jpeg.c" file, elsewhere in this - library; see comments above.) JPEG Library internal state is recorded in a - "jpeg_{de}compress_struct", while a "jpeg_common_struct" records a few items - common to both compression and expansion. The "cinfo" field containing JPEG - Library state MUST be the 1st member of our own state variable, so that we - can safely "cast" pointers back and forth. -*/ -typedef struct /* This module's private, per-image state variable */ - { - union /* JPEG Library state variable; this MUST be our 1st field! */ - { - struct jpeg_compress_struct c; - struct jpeg_decompress_struct d; - struct jpeg_common_struct comm; - } cinfo; - jpeg_error_mgr err; /* JPEG Library error manager */ - JMP_BUF exit_jmpbuf; /* ...for catching JPEG Library failures */ -# ifdef never - - /* (The following two fields could be a "union", but they're small enough that - it's not worth the effort.) - */ - jpeg_destination_mgr dest; /* Destination for compressed data */ -# endif - jpeg_source_mgr src; /* Source of expanded data */ - JSAMPARRAY ds_buffer[MAX_COMPONENTS]; /* ->Temporary downsampling buffers */ - TIFF *tif; /* Reverse pointer, needed by some code */ - TIFFVGetMethod vgetparent; /* "Super class" methods... */ - TIFFVSetMethod vsetparent; - TIFFStripMethod defsparent; - TIFFTileMethod deftparent; - void *jpegtables; /* ->"New" JPEG tables, if we synthesized any */ - uint32 is_WANG, /* <=> Wang Imaging for Microsoft Windows output file? */ - jpegtables_length; /* Length of "new" JPEG tables, if they exist */ - tsize_t bytesperline; /* No. of decompressed Bytes per scan line */ - int jpegquality, /* Compression quality level */ - jpegtablesmode, /* What to put in JPEGTables */ - samplesperclump, - scancount; /* No. of scan lines accumulated */ - J_COLOR_SPACE photometric; /* IJG JPEG Library's photometry code */ - unsigned char h_sampling, /* Luminance sampling factors */ - v_sampling, - jpegcolormode; /* Who performs RGB <-> YCbCr conversion? */ - /* JPEGCOLORMODE_RAW <=> TIFF Library or its client */ - /* JPEGCOLORMODE_RGB <=> JPEG Library */ - /* These fields are added to support TIFFGetField */ - uint16 jpegproc; - uint32 jpegifoffset; - uint32 jpegifbytecount; - uint32 jpegrestartinterval; - void* jpeglosslesspredictors; - uint16 jpeglosslesspredictors_length; - void* jpegpointtransform; - uint32 jpegpointtransform_length; - void* jpegqtables; - uint32 jpegqtables_length; - void* jpegdctables; - uint32 jpegdctables_length; - void* jpegactables; - uint32 jpegactables_length; - - } OJPEGState; -#define OJState(tif)((OJPEGState*)(tif)->tif_data) - -static const TIFFFieldInfo ojpegFieldInfo[]=/* JPEG-specific TIFF-record tags */ - { - - /* This is the current JPEG-in-TIFF metadata-encapsulation tag, and its - treatment in this file is idiosyncratic. It should never appear in a - "source" image conforming to the TIFF Version 6.0 specification, so we - arrange to report an error if it appears. But in order to support possible - future conversion of "old" JPEG-in-TIFF encapsulations to "new" ones, we - might wish to synthesize an equivalent value to be returned by the TIFF - Library's "getfield" method. So, this table tells the TIFF Library to pass - these records to us in order to filter them below. - */ - { - TIFFTAG_JPEGTABLES ,TIFF_VARIABLE2,TIFF_VARIABLE2, - TIFF_UNDEFINED,FIELD_JPEGTABLES ,FALSE,TRUE ,"JPEGTables" - }, - - /* These tags are defined by the TIFF Version 6.0 specification and are now - obsolete. This module reads them from an old "source" image, but it never - writes them to a new "destination" image. - */ - { - TIFFTAG_JPEGPROC ,1 ,1 , - TIFF_SHORT ,FIELD_JPEGPROC ,FALSE,FALSE,"JPEGProc" - }, - { - TIFFTAG_JPEGIFOFFSET ,1 ,1 , - TIFF_LONG ,FIELD_JPEGIFOFFSET ,FALSE,FALSE,"JPEGInterchangeFormat" - }, - { - TIFFTAG_JPEGIFBYTECOUNT ,1 ,1 , - TIFF_LONG ,FIELD_JPEGIFBYTECOUNT ,FALSE,FALSE,"JPEGInterchangeFormatLength" - }, - { - TIFFTAG_JPEGRESTARTINTERVAL ,1 ,1 , - TIFF_SHORT ,FIELD_JPEGRESTARTINTERVAL ,FALSE,FALSE,"JPEGRestartInterval" - }, - { - TIFFTAG_JPEGLOSSLESSPREDICTORS,TIFF_VARIABLE,TIFF_VARIABLE, - TIFF_SHORT ,FIELD_JPEGLOSSLESSPREDICTORS,FALSE,TRUE ,"JPEGLosslessPredictors" - }, - { - TIFFTAG_JPEGPOINTTRANSFORM ,TIFF_VARIABLE,TIFF_VARIABLE, - TIFF_SHORT ,FIELD_JPEGPOINTTRANSFORM ,FALSE,TRUE ,"JPEGPointTransforms" - }, - { - TIFFTAG_JPEGQTABLES ,TIFF_VARIABLE,TIFF_VARIABLE, - TIFF_LONG ,FIELD_JPEGQTABLES ,FALSE,TRUE ,"JPEGQTables" - }, - { - TIFFTAG_JPEGDCTABLES ,TIFF_VARIABLE,TIFF_VARIABLE, - TIFF_LONG ,FIELD_JPEGDCTABLES ,FALSE,TRUE ,"JPEGDCTables" - }, - { - TIFFTAG_JPEGACTABLES ,TIFF_VARIABLE,TIFF_VARIABLE, - TIFF_LONG ,FIELD_JPEGACTABLES ,FALSE,TRUE ,"JPEGACTables" - }, - { - TIFFTAG_WANG_PAGECONTROL ,TIFF_VARIABLE,1 , - TIFF_LONG ,FIELD_WANG_PAGECONTROL ,FALSE,FALSE,"WANG PageControl" - }, - - /* This is a pseudo tag intended for internal use only by the TIFF Library and - its clients, which should never appear in an input/output image file. It - specifies whether the TIFF Library (or its client) should do YCbCr <-> RGB - color-space conversion (JPEGCOLORMODE_RAW <=> 0) or whether we should ask - the JPEG Library to do it (JPEGCOLORMODE_RGB <=> 1). - */ - { - TIFFTAG_JPEGCOLORMODE ,0 ,0 , - TIFF_ANY ,FIELD_PSEUDO ,FALSE,FALSE,"JPEGColorMode" - } - }; -static const char JPEGLib_name[]={"JPEG Library"}, - bad_bps[]={"%u BitsPerSample not allowed for JPEG"}, - bad_photometry[]={"PhotometricInterpretation %u not allowed for JPEG"}, - bad_subsampling[]={"invalid YCbCr subsampling factor(s)"}, -# ifdef never - no_write_frac[]={"fractional scan line discarded"}, -# endif - no_read_frac[]={"fractional scan line not read"}, - no_jtable_space[]={"No space for JPEGTables"}; - -/* The following diagnostic subroutines interface with and replace default - subroutines in the JPEG Library. Our basic strategy is to use "setjmp()"/ - "longjmp()" in order to return control to the TIFF Library when the JPEG - library detects an error, and to use TIFF Library subroutines for displaying - diagnostic messages to a client application. -*/ -static void -TIFFojpeg_error_exit(register j_common_ptr cinfo) +static int +OJPEGVSetField(TIFF* tif, ttag_t tag, va_list ap) { - char buffer[JMSG_LENGTH_MAX]; - int code = cinfo->err->msg_code; - - if (((OJPEGState *)cinfo)->is_WANG) { - if (code == JERR_SOF_DUPLICATE || code == JERR_SOI_DUPLICATE) - return; /* ignore it */ - } - - (*cinfo->err->format_message)(cinfo,buffer); - TIFFError(JPEGLib_name,buffer); /* Display error message */ - jpeg_abort(cinfo); /* Clean up JPEG Library state */ - LONGJMP(((OJPEGState *)cinfo)->exit_jmpbuf,1); /* Return to TIFF client */ + static const char module[]="OJPEGVSetField"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint32 ma; + uint32* mb; + uint32 n; + switch(tag) + { + case TIFFTAG_JPEGIFOFFSET: + sp->jpeg_interchange_format=(toff_t)va_arg(ap,uint32); + break; + case TIFFTAG_JPEGIFBYTECOUNT: + sp->jpeg_interchange_format_length=(toff_t)va_arg(ap,uint32); + break; + case TIFFTAG_YCBCRSUBSAMPLING: + sp->subsampling_tag=1; + sp->subsampling_hor=(uint8)va_arg(ap,int); + sp->subsampling_ver=(uint8)va_arg(ap,int); + tif->tif_dir.td_ycbcrsubsampling[0]=sp->subsampling_hor; + tif->tif_dir.td_ycbcrsubsampling[1]=sp->subsampling_ver; + break; + case TIFFTAG_JPEGQTABLES: + ma=va_arg(ap,uint32); + if (ma!=0) + { + if (ma>3) + { + TIFFErrorExt(tif->tif_clientdata,module,"JpegQTables tag has incorrect count"); + return(0); + } + sp->qtable_offset_count=(uint8)ma; + mb=va_arg(ap,uint32*); + for (n=0; n<ma; n++) + sp->qtable_offset[n]=(toff_t)mb[n]; + } + break; + case TIFFTAG_JPEGDCTABLES: + ma=va_arg(ap,uint32); + if (ma!=0) + { + if (ma>3) + { + TIFFErrorExt(tif->tif_clientdata,module,"JpegDcTables tag has incorrect count"); + return(0); + } + sp->dctable_offset_count=(uint8)ma; + mb=va_arg(ap,uint32*); + for (n=0; n<ma; n++) + sp->dctable_offset[n]=(toff_t)mb[n]; + } + break; + case TIFFTAG_JPEGACTABLES: + ma=va_arg(ap,uint32); + if (ma!=0) + { + if (ma>3) + { + TIFFErrorExt(tif->tif_clientdata,module,"JpegAcTables tag has incorrect count"); + return(0); + } + sp->actable_offset_count=(uint8)ma; + mb=va_arg(ap,uint32*); + for (n=0; n<ma; n++) + sp->actable_offset[n]=(toff_t)mb[n]; + } + break; + case TIFFTAG_JPEGPROC: + sp->jpeg_proc=(uint8)va_arg(ap,uint32); + break; + case TIFFTAG_JPEGRESTARTINTERVAL: + sp->restart_interval=(uint16)va_arg(ap,uint32); + break; + default: + return (*sp->vsetparent)(tif,tag,ap); + } + TIFFSetFieldBit(tif,_TIFFFieldWithTag(tif,tag)->field_bit); + tif->tif_flags|=TIFF_DIRTYDIRECT; + return(1); } static void -TIFFojpeg_output_message(register j_common_ptr cinfo) - { char buffer[JMSG_LENGTH_MAX]; +OJPEGPrintDir(TIFF* tif, FILE* fd, long flags) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8 m; + (void)flags; + assert(sp!=NULL); + if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGINTERCHANGEFORMAT)) + fprintf(fd," JpegInterchangeFormat: %lu\n",(unsigned long)sp->jpeg_interchange_format); + if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGINTERCHANGEFORMATLENGTH)) + fprintf(fd," JpegInterchangeFormatLength: %lu\n",(unsigned long)sp->jpeg_interchange_format_length); + if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGQTABLES)) + { + fprintf(fd," JpegQTables:"); + for (m=0; m<sp->qtable_offset_count; m++) + fprintf(fd," %lu",(unsigned long)sp->qtable_offset[m]); + fprintf(fd,"\n"); + } + if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGDCTABLES)) + { + fprintf(fd," JpegDcTables:"); + for (m=0; m<sp->dctable_offset_count; m++) + fprintf(fd," %lu",(unsigned long)sp->dctable_offset[m]); + fprintf(fd,"\n"); + } + if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGACTABLES)) + { + fprintf(fd," JpegAcTables:"); + for (m=0; m<sp->actable_offset_count; m++) + fprintf(fd," %lu",(unsigned long)sp->actable_offset[m]); + fprintf(fd,"\n"); + } + if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGPROC)) + fprintf(fd," JpegProc: %u\n",(unsigned int)sp->jpeg_proc); + if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGRESTARTINTERVAL)) + fprintf(fd," JpegRestartInterval: %u\n",(unsigned int)sp->restart_interval); +} - /* This subroutine is invoked only for warning messages, since the JPEG - Library's "error_exit" method does its own thing and "trace_level" is never - set > 0. - */ - (*cinfo->err->format_message)(cinfo,buffer); - TIFFWarning(JPEGLib_name,buffer); - } +static int +OJPEGSetupDecode(TIFF* tif) +{ + static const char module[]="OJPEGSetupDecode"; + TIFFWarningExt(tif->tif_clientdata,module,"Depreciated and troublesome old-style JPEG compression mode, please convert to new-style JPEG compression and notify vendor of writing software"); + return(1); +} -/* The following subroutines, which also interface with the JPEG Library, exist - mainly in limit the side effects of "setjmp()" and convert JPEG normal/error - conditions into TIFF Library return codes. -*/ -#define CALLJPEG(sp,fail,op)(SETJMP((sp)->exit_jmpbuf)?(fail):(op)) -#define CALLVJPEG(sp,op)CALLJPEG(sp,0,((op),1)) -#ifdef never +static int +OJPEGPreDecode(TIFF* tif, tsample_t s) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + tstrile_t m; + if (sp->subsamplingcorrect_done==0) + OJPEGSubsamplingCorrect(tif); + if (sp->readheader_done==0) + { + if (OJPEGReadHeaderInfo(tif)==0) + return(0); + } + if (sp->sos_end[s].log==0) + { + if (OJPEGReadSecondarySos(tif,s)==0) + return(0); + } + if isTiled(tif) + m=(tstrile_t)tif->tif_curtile; + else + m=(tstrile_t)tif->tif_curstrip; + if ((sp->writeheader_done!=0) && ((sp->write_cursample!=s) || (sp->write_curstrile>m))) + { + if (sp->libjpeg_session_active!=0) + OJPEGLibjpegSessionAbort(tif); + sp->writeheader_done=0; + } + if (sp->writeheader_done==0) + { + sp->plane_sample_offset=s; + sp->write_cursample=s; + sp->write_curstrile=s*tif->tif_dir.td_stripsperimage; + if ((sp->in_buffer_file_pos_log==0) || + (sp->in_buffer_file_pos-sp->in_buffer_togo!=sp->sos_end[s].in_buffer_file_pos)) + { + sp->in_buffer_source=sp->sos_end[s].in_buffer_source; + sp->in_buffer_next_strile=sp->sos_end[s].in_buffer_next_strile; + sp->in_buffer_file_pos=sp->sos_end[s].in_buffer_file_pos; + sp->in_buffer_file_pos_log=0; + sp->in_buffer_file_togo=sp->sos_end[s].in_buffer_file_togo; + sp->in_buffer_togo=0; + sp->in_buffer_cur=0; + } + if (OJPEGWriteHeaderInfo(tif)==0) + return(0); + } + while (sp->write_curstrile<m) + { + if (sp->libjpeg_jpeg_query_style==0) + { + if (OJPEGPreDecodeSkipRaw(tif)==0) + return(0); + } + else + { + if (OJPEGPreDecodeSkipScanlines(tif)==0) + return(0); + } + sp->write_curstrile++; + } + return(1); +} static int -TIFFojpeg_create_compress(register OJPEGState *sp) - { - sp->cinfo.c.err = jpeg_std_error(&sp->err); /* Initialize error handling */ - sp->err.error_exit = TIFFojpeg_error_exit; - sp->err.output_message = TIFFojpeg_output_message; - return CALLVJPEG(sp,jpeg_create_compress(&sp->cinfo.c)); - } - -/* The following subroutines comprise a JPEG Library "destination" data manager - by directing compressed data from the JPEG Library to a TIFF Library output - buffer. -*/ -static void -std_init_destination(register j_compress_ptr cinfo){} /* "Dummy" stub */ +OJPEGPreDecodeSkipRaw(TIFF* tif) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint32 m; + m=sp->lines_per_strile; + if (sp->subsampling_convert_state!=0) + { + if (sp->subsampling_convert_clines-sp->subsampling_convert_state>=m) + { + sp->subsampling_convert_state+=m; + if (sp->subsampling_convert_state==sp->subsampling_convert_clines) + sp->subsampling_convert_state=0; + return(1); + } + m-=sp->subsampling_convert_clines-sp->subsampling_convert_state; + sp->subsampling_convert_state=0; + } + while (m>=sp->subsampling_convert_clines) + { + if (jpeg_read_raw_data_encap(sp,&(sp->libjpeg_jpeg_decompress_struct),sp->subsampling_convert_ycbcrimage,sp->subsampling_ver*8)==0) + return(0); + m-=sp->subsampling_convert_clines; + } + if (m>0) + { + if (jpeg_read_raw_data_encap(sp,&(sp->libjpeg_jpeg_decompress_struct),sp->subsampling_convert_ycbcrimage,sp->subsampling_ver*8)==0) + return(0); + sp->subsampling_convert_state=m; + } + return(1); +} -static boolean -std_empty_output_buffer(register j_compress_ptr cinfo) - { -# define sp ((OJPEGState *)cinfo) - register TIFF *tif = sp->tif; - - tif->tif_rawcc = tif->tif_rawdatasize; /* Entire buffer has been filled */ - TIFFFlushData1(tif); - sp->dest.next_output_byte = (JOCTET *)tif->tif_rawdata; - sp->dest.free_in_buffer = (size_t)tif->tif_rawdatasize; - return TRUE; -# undef sp - } +static int +OJPEGPreDecodeSkipScanlines(TIFF* tif) +{ + static const char module[]="OJPEGPreDecodeSkipScanlines"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint32 m; + if (sp->skip_buffer==NULL) + { + sp->skip_buffer=_TIFFmalloc(sp->bytes_per_line); + if (sp->skip_buffer==NULL) + { + TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); + return(0); + } + } + for (m=0; m<sp->lines_per_strile; m++) + { + if (jpeg_read_scanlines_encap(sp,&(sp->libjpeg_jpeg_decompress_struct),&sp->skip_buffer,1)==0) + return(0); + } + return(1); +} -static void -std_term_destination(register j_compress_ptr cinfo) - { -# define sp ((OJPEGState *)cinfo) - register TIFF *tif = sp->tif; +static int +OJPEGDecode(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + (void)s; + if (sp->libjpeg_jpeg_query_style==0) + { + if (OJPEGDecodeRaw(tif,buf,cc)==0) + return(0); + } + else + { + if (OJPEGDecodeScanlines(tif,buf,cc)==0) + return(0); + } + return(1); +} - /* NB: The TIFF Library does the final buffer flush. */ - tif->tif_rawcp = (tidata_t)sp->dest.next_output_byte; - tif->tif_rawcc = tif->tif_rawdatasize - (tsize_t)sp->dest.free_in_buffer; -# undef sp - } +static int +OJPEGDecodeRaw(TIFF* tif, tidata_t buf, tsize_t cc) +{ + static const char module[]="OJPEGDecodeRaw"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8* m; + uint32 n; + uint8* oy; + uint8* ocb; + uint8* ocr; + uint8* p; + uint32 q; + uint8* r; + uint8 sx,sy; + if (cc%sp->bytes_per_line!=0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Fractional scanline not read"); + return(0); + } + assert(cc>0); + m=buf; + n=cc; + do + { + if (sp->subsampling_convert_state==0) + { + if (jpeg_read_raw_data_encap(sp,&(sp->libjpeg_jpeg_decompress_struct),sp->subsampling_convert_ycbcrimage,sp->subsampling_ver*8)==0) + return(0); + } + oy=sp->subsampling_convert_ybuf+sp->subsampling_convert_state*sp->subsampling_ver*sp->subsampling_convert_ylinelen; + ocb=sp->subsampling_convert_cbbuf+sp->subsampling_convert_state*sp->subsampling_convert_clinelen; + ocr=sp->subsampling_convert_crbuf+sp->subsampling_convert_state*sp->subsampling_convert_clinelen; + p=m; + for (q=0; q<sp->subsampling_convert_clinelenout; q++) + { + r=oy; + for (sy=0; sy<sp->subsampling_ver; sy++) + { + for (sx=0; sx<sp->subsampling_hor; sx++) + *p++=*r++; + r+=sp->subsampling_convert_ylinelen-sp->subsampling_hor; + } + oy+=sp->subsampling_hor; + *p++=*ocb++; + *p++=*ocr++; + } + sp->subsampling_convert_state++; + if (sp->subsampling_convert_state==sp->subsampling_convert_clines) + sp->subsampling_convert_state=0; + m+=sp->bytes_per_line; + n-=sp->bytes_per_line; + } while(n>0); + return(1); +} -/* Alternate destination manager to output JPEGTables field: */ +static int +OJPEGDecodeScanlines(TIFF* tif, tidata_t buf, tsize_t cc) +{ + static const char module[]="OJPEGDecodeScanlines"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8* m; + uint32 n; + if (cc%sp->bytes_per_line!=0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Fractional scanline not read"); + return(0); + } + assert(cc>0); + m=buf; + n=cc; + do + { + if (jpeg_read_scanlines_encap(sp,&(sp->libjpeg_jpeg_decompress_struct),&m,1)==0) + return(0); + m+=sp->bytes_per_line; + n-=sp->bytes_per_line; + } while(n>0); + return(1); +} static void -tables_init_destination(register j_compress_ptr cinfo) - { -# define sp ((OJPEGState *)cinfo) - /* The "jpegtables_length" field is the allocated buffer size while building */ - sp->dest.next_output_byte = (JOCTET *)sp->jpegtables; - sp->dest.free_in_buffer = (size_t)sp->jpegtables_length; -# undef sp - } +OJPEGPostDecode(TIFF* tif, tidata_t buf, tsize_t cc) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + (void)buf; + (void)cc; + sp->write_curstrile++; + if (sp->write_curstrile%tif->tif_dir.td_stripsperimage==0) + { + assert(sp->libjpeg_session_active!=0); + OJPEGLibjpegSessionAbort(tif); + sp->writeheader_done=0; + } +} -static boolean -tables_empty_output_buffer(register j_compress_ptr cinfo) - { void *newbuf; -# define sp ((OJPEGState *)cinfo) - - /* The entire buffer has been filled, so enlarge it by 1000 bytes. */ - if (!( newbuf = _TIFFrealloc( (tdata_t)sp->jpegtables - , (tsize_t)(sp->jpegtables_length + 1000) - ) - ) - ) ERREXIT1(cinfo,JERR_OUT_OF_MEMORY,100); - sp->dest.next_output_byte = (JOCTET *)newbuf + sp->jpegtables_length; - sp->dest.free_in_buffer = (size_t)1000; - sp->jpegtables = newbuf; - sp->jpegtables_length += 1000; - return TRUE; -# undef sp - } +static int +OJPEGSetupEncode(TIFF* tif) +{ + static const char module[]="OJPEGSetupEncode"; + TIFFErrorExt(tif->tif_clientdata,module,"OJPEG encoding not supported; use new-style JPEG compression instead"); + return(0); +} -static void -tables_term_destination(register j_compress_ptr cinfo) - { -# define sp ((OJPEGState *)cinfo) - /* Set tables length to no. of Bytes actually emitted. */ - sp->jpegtables_length -= sp->dest.free_in_buffer; -# undef sp - } - -/*ARGSUSED*/ static int -TIFFojpeg_tables_dest(register OJPEGState *sp, TIFF *tif) - { - - /* Allocate a working buffer for building tables. The initial size is 1000 - Bytes, which is usually adequate. - */ - if (sp->jpegtables) _TIFFfree(sp->jpegtables); - if (!(sp->jpegtables = (void*) - _TIFFmalloc((tsize_t)(sp->jpegtables_length = 1000)) - ) - ) - { - sp->jpegtables_length = 0; - TIFFError("TIFFojpeg_tables_dest",no_jtable_space); - return 0; - }; - sp->cinfo.c.dest = &sp->dest; - sp->dest.init_destination = tables_init_destination; - sp->dest.empty_output_buffer = tables_empty_output_buffer; - sp->dest.term_destination = tables_term_destination; - return 1; - } -#else /* well, hardly ever */ +static int +OJPEGPreEncode(TIFF* tif, tsample_t s) +{ + static const char module[]="OJPEGPreEncode"; + (void)s; + TIFFErrorExt(tif->tif_clientdata,module,"OJPEG encoding not supported; use new-style JPEG compression instead"); + return(0); +} static int -_notSupported(register TIFF *tif) - { const TIFFCodec *c = TIFFFindCODEC(tif->tif_dir.td_compression); +OJPEGEncode(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s) +{ + static const char module[]="OJPEGEncode"; + (void)buf; + (void)cc; + (void)s; + TIFFErrorExt(tif->tif_clientdata,module,"OJPEG encoding not supported; use new-style JPEG compression instead"); + return(0); +} - TIFFError(tif->tif_name,"%s compression not supported",c->name); - return 0; - } -#endif /* never */ +static int +OJPEGPostEncode(TIFF* tif) +{ + static const char module[]="OJPEGPostEncode"; + TIFFErrorExt(tif->tif_clientdata,module,"OJPEG encoding not supported; use new-style JPEG compression instead"); + return(0); +} -/* The following subroutines comprise a JPEG Library "source" data manager by - by directing compressed data to the JPEG Library from a TIFF Library input - buffer. -*/ static void -std_init_source(register j_decompress_ptr cinfo) - { -# define sp ((OJPEGState *)cinfo) - register TIFF *tif = sp->tif; - - if (sp->src.bytes_in_buffer == 0) - { - sp->src.next_input_byte = (const JOCTET *)tif->tif_rawdata; - sp->src.bytes_in_buffer = (size_t)tif->tif_rawcc; - }; -# undef sp - } +OJPEGCleanup(TIFF* tif) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + if (sp!=0) + { + tif->tif_tagmethods.vgetfield=sp->vgetparent; + tif->tif_tagmethods.vsetfield=sp->vsetparent; + if (sp->qtable[0]!=0) + _TIFFfree(sp->qtable[0]); + if (sp->qtable[1]!=0) + _TIFFfree(sp->qtable[1]); + if (sp->qtable[2]!=0) + _TIFFfree(sp->qtable[2]); + if (sp->qtable[3]!=0) + _TIFFfree(sp->qtable[3]); + if (sp->dctable[0]!=0) + _TIFFfree(sp->dctable[0]); + if (sp->dctable[1]!=0) + _TIFFfree(sp->dctable[1]); + if (sp->dctable[2]!=0) + _TIFFfree(sp->dctable[2]); + if (sp->dctable[3]!=0) + _TIFFfree(sp->dctable[3]); + if (sp->actable[0]!=0) + _TIFFfree(sp->actable[0]); + if (sp->actable[1]!=0) + _TIFFfree(sp->actable[1]); + if (sp->actable[2]!=0) + _TIFFfree(sp->actable[2]); + if (sp->actable[3]!=0) + _TIFFfree(sp->actable[3]); + if (sp->libjpeg_session_active!=0) + OJPEGLibjpegSessionAbort(tif); + if (sp->subsampling_convert_ycbcrbuf!=0) + _TIFFfree(sp->subsampling_convert_ycbcrbuf); + if (sp->subsampling_convert_ycbcrimage!=0) + _TIFFfree(sp->subsampling_convert_ycbcrimage); + if (sp->skip_buffer!=0) + _TIFFfree(sp->skip_buffer); + _TIFFfree(sp); + tif->tif_data=NULL; + _TIFFSetDefaultCompressionState(tif); + } +} -static boolean -std_fill_input_buffer(register j_decompress_ptr cinfo) - { static const JOCTET dummy_EOI[2]={0xFF,JPEG_EOI}; -# define sp ((OJPEGState *)cinfo) +static void +OJPEGSubsamplingCorrect(TIFF* tif) +{ + static const char module[]="OJPEGSubsamplingCorrect"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8 mh; + uint8 mv; + assert(sp->subsamplingcorrect_done==0); + if ((tif->tif_dir.td_samplesperpixel!=3) || ((tif->tif_dir.td_photometric!=PHOTOMETRIC_YCBCR) && + (tif->tif_dir.td_photometric!=PHOTOMETRIC_ITULAB))) + { + if (sp->subsampling_tag!=0) + TIFFWarningExt(tif->tif_clientdata,module,"Subsampling tag not appropriate for this Photometric and/or SamplesPerPixel"); + sp->subsampling_hor=1; + sp->subsampling_ver=1; + sp->subsampling_force_desubsampling_inside_decompression=0; + } + else + { + sp->subsamplingcorrect_done=1; + mh=sp->subsampling_hor; + mv=sp->subsampling_ver; + sp->subsamplingcorrect=1; + OJPEGReadHeaderInfoSec(tif); + if (sp->subsampling_force_desubsampling_inside_decompression!=0) + { + sp->subsampling_hor=1; + sp->subsampling_ver=1; + } + sp->subsamplingcorrect=0; + if (((sp->subsampling_hor!=mh) || (sp->subsampling_ver!=mv)) && (sp->subsampling_force_desubsampling_inside_decompression==0)) + { + if (sp->subsampling_tag==0) + TIFFWarningExt(tif->tif_clientdata,module,"Subsampling tag is not set, yet subsampling inside JPEG data [%d,%d] does not match default values [2,2]; assuming subsampling inside JPEG data is correct",sp->subsampling_hor,sp->subsampling_ver); + else + TIFFWarningExt(tif->tif_clientdata,module,"Subsampling inside JPEG data [%d,%d] does not match subsampling tag values [%d,%d]; assuming subsampling inside JPEG data is correct",sp->subsampling_hor,sp->subsampling_ver,mh,mv); + } + if (sp->subsampling_force_desubsampling_inside_decompression!=0) + { + if (sp->subsampling_tag==0) + TIFFWarningExt(tif->tif_clientdata,module,"Subsampling tag is not set, yet subsampling inside JPEG data does not match default values [2,2] (nor any other values allowed in TIFF); assuming subsampling inside JPEG data is correct and desubsampling inside JPEG decompression"); + else + TIFFWarningExt(tif->tif_clientdata,module,"Subsampling inside JPEG data does not match subsampling tag values [%d,%d] (nor any other values allowed in TIFF); assuming subsampling inside JPEG data is correct and desubsampling inside JPEG decompression",mh,mv); + } + if (sp->subsampling_force_desubsampling_inside_decompression==0) + { + if (sp->subsampling_hor<sp->subsampling_ver) + TIFFWarningExt(tif->tif_clientdata,module,"Subsampling values [%d,%d] are not allowed in TIFF",sp->subsampling_hor,sp->subsampling_ver); + } + } + sp->subsamplingcorrect_done=1; +} - /* Control should never get here, since an entire strip/tile is read into - memory before the decompressor is called; thus, data should have been - supplied by the "init_source" method. ...But, sometimes things fail. - */ - WARNMS(cinfo,JWRN_JPEG_EOF); - sp->src.next_input_byte = dummy_EOI; /* Insert a fake EOI marker */ - sp->src.bytes_in_buffer = sizeof dummy_EOI; - return TRUE; -# undef sp - } +static int +OJPEGReadHeaderInfo(TIFF* tif) +{ + static const char module[]="OJPEGReadHeaderInfo"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + assert(sp->readheader_done==0); + sp->image_width=tif->tif_dir.td_imagewidth; + sp->image_length=tif->tif_dir.td_imagelength; + if isTiled(tif) + { + sp->strile_width=tif->tif_dir.td_tilewidth; + sp->strile_length=tif->tif_dir.td_tilelength; + sp->strile_length_total=((sp->image_length+sp->strile_length-1)/sp->strile_length)*sp->strile_length; + } + else + { + sp->strile_width=sp->image_width; + sp->strile_length=tif->tif_dir.td_rowsperstrip; + sp->strile_length_total=sp->image_length; + } + sp->samples_per_pixel=tif->tif_dir.td_samplesperpixel; + if (sp->samples_per_pixel==1) + { + sp->plane_sample_offset=0; + sp->samples_per_pixel_per_plane=sp->samples_per_pixel; + sp->subsampling_hor=1; + sp->subsampling_ver=1; + } + else + { + if (sp->samples_per_pixel!=3) + { + TIFFErrorExt(tif->tif_clientdata,module,"SamplesPerPixel %d not supported for this compression scheme",sp->samples_per_pixel); + return(0); + } + sp->plane_sample_offset=0; + if (tif->tif_dir.td_planarconfig==PLANARCONFIG_CONTIG) + sp->samples_per_pixel_per_plane=3; + else + sp->samples_per_pixel_per_plane=1; + } + if (sp->strile_length<sp->image_length) + { + if (sp->strile_length%(sp->subsampling_ver*8)!=0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Incompatible vertical subsampling and image strip/tile length"); + return(0); + } + sp->restart_interval=((sp->strile_width+sp->subsampling_hor*8-1)/(sp->subsampling_hor*8))*(sp->strile_length/(sp->subsampling_ver*8)); + } + if (OJPEGReadHeaderInfoSec(tif)==0) + return(0); + sp->sos_end[0].log=1; + sp->sos_end[0].in_buffer_source=sp->in_buffer_source; + sp->sos_end[0].in_buffer_next_strile=sp->in_buffer_next_strile; + sp->sos_end[0].in_buffer_file_pos=sp->in_buffer_file_pos-sp->in_buffer_togo; + sp->sos_end[0].in_buffer_file_togo=sp->in_buffer_file_togo+sp->in_buffer_togo; + sp->readheader_done=1; + return(1); +} + +static int +OJPEGReadSecondarySos(TIFF* tif, tsample_t s) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8 m; + assert(s>0); + assert(s<3); + assert(sp->sos_end[0].log!=0); + assert(sp->sos_end[s].log==0); + sp->plane_sample_offset=s-1; + while(sp->sos_end[sp->plane_sample_offset].log==0) + sp->plane_sample_offset--; + sp->in_buffer_source=sp->sos_end[sp->plane_sample_offset].in_buffer_source; + sp->in_buffer_next_strile=sp->sos_end[sp->plane_sample_offset].in_buffer_next_strile; + sp->in_buffer_file_pos=sp->sos_end[sp->plane_sample_offset].in_buffer_file_pos; + sp->in_buffer_file_pos_log=0; + sp->in_buffer_file_togo=sp->sos_end[sp->plane_sample_offset].in_buffer_file_togo; + sp->in_buffer_togo=0; + sp->in_buffer_cur=0; + while(sp->plane_sample_offset<s) + { + do + { + if (OJPEGReadByte(sp,&m)==0) + return(0); + if (m==255) + { + do + { + if (OJPEGReadByte(sp,&m)==0) + return(0); + if (m!=255) + break; + } while(1); + if (m==JPEG_MARKER_SOS) + break; + } + } while(1); + sp->plane_sample_offset++; + if (OJPEGReadHeaderInfoSecStreamSos(tif)==0) + return(0); + sp->sos_end[sp->plane_sample_offset].log=1; + sp->sos_end[sp->plane_sample_offset].in_buffer_source=sp->in_buffer_source; + sp->sos_end[sp->plane_sample_offset].in_buffer_next_strile=sp->in_buffer_next_strile; + sp->sos_end[sp->plane_sample_offset].in_buffer_file_pos=sp->in_buffer_file_pos-sp->in_buffer_togo; + sp->sos_end[sp->plane_sample_offset].in_buffer_file_togo=sp->in_buffer_file_togo+sp->in_buffer_togo; + } + return(1); +} + +static int +OJPEGWriteHeaderInfo(TIFF* tif) +{ + static const char module[]="OJPEGWriteHeaderInfo"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8** m; + uint32 n; + assert(sp->libjpeg_session_active==0); + sp->out_state=ososSoi; + sp->restart_index=0; + jpeg_std_error(&(sp->libjpeg_jpeg_error_mgr)); + sp->libjpeg_jpeg_error_mgr.output_message=OJPEGLibjpegJpegErrorMgrOutputMessage; + sp->libjpeg_jpeg_error_mgr.error_exit=OJPEGLibjpegJpegErrorMgrErrorExit; + sp->libjpeg_jpeg_decompress_struct.err=&(sp->libjpeg_jpeg_error_mgr); + sp->libjpeg_jpeg_decompress_struct.client_data=(void*)tif; + if (jpeg_create_decompress_encap(sp,&(sp->libjpeg_jpeg_decompress_struct))==0) + return(0); + sp->libjpeg_session_active=1; + sp->libjpeg_jpeg_source_mgr.bytes_in_buffer=0; + sp->libjpeg_jpeg_source_mgr.init_source=OJPEGLibjpegJpegSourceMgrInitSource; + sp->libjpeg_jpeg_source_mgr.fill_input_buffer=OJPEGLibjpegJpegSourceMgrFillInputBuffer; + sp->libjpeg_jpeg_source_mgr.skip_input_data=OJPEGLibjpegJpegSourceMgrSkipInputData; + sp->libjpeg_jpeg_source_mgr.resync_to_restart=OJPEGLibjpegJpegSourceMgrResyncToRestart; + sp->libjpeg_jpeg_source_mgr.term_source=OJPEGLibjpegJpegSourceMgrTermSource; + sp->libjpeg_jpeg_decompress_struct.src=&(sp->libjpeg_jpeg_source_mgr); + if (jpeg_read_header_encap(sp,&(sp->libjpeg_jpeg_decompress_struct),1)==0) + return(0); + if ((sp->subsampling_force_desubsampling_inside_decompression==0) && (sp->samples_per_pixel_per_plane>1)) + { + sp->libjpeg_jpeg_decompress_struct.raw_data_out=1; + sp->libjpeg_jpeg_query_style=0; + if (sp->subsampling_convert_log==0) + { + assert(sp->subsampling_convert_ycbcrbuf==0); + assert(sp->subsampling_convert_ycbcrimage==0); + sp->subsampling_convert_ylinelen=((sp->strile_width+sp->subsampling_hor*8-1)/(sp->subsampling_hor*8)*sp->subsampling_hor*8); + sp->subsampling_convert_ylines=sp->subsampling_ver*8; + sp->subsampling_convert_clinelen=sp->subsampling_convert_ylinelen/sp->subsampling_hor; + sp->subsampling_convert_clines=8; + sp->subsampling_convert_ybuflen=sp->subsampling_convert_ylinelen*sp->subsampling_convert_ylines; + sp->subsampling_convert_cbuflen=sp->subsampling_convert_clinelen*sp->subsampling_convert_clines; + sp->subsampling_convert_ycbcrbuflen=sp->subsampling_convert_ybuflen+2*sp->subsampling_convert_cbuflen; + sp->subsampling_convert_ycbcrbuf=_TIFFmalloc(sp->subsampling_convert_ycbcrbuflen); + if (sp->subsampling_convert_ycbcrbuf==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); + return(0); + } + sp->subsampling_convert_ybuf=sp->subsampling_convert_ycbcrbuf; + sp->subsampling_convert_cbbuf=sp->subsampling_convert_ybuf+sp->subsampling_convert_ybuflen; + sp->subsampling_convert_crbuf=sp->subsampling_convert_cbbuf+sp->subsampling_convert_cbuflen; + sp->subsampling_convert_ycbcrimagelen=3+sp->subsampling_convert_ylines+2*sp->subsampling_convert_clines; + sp->subsampling_convert_ycbcrimage=_TIFFmalloc(sp->subsampling_convert_ycbcrimagelen*sizeof(uint8*)); + if (sp->subsampling_convert_ycbcrimage==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); + return(0); + } + m=sp->subsampling_convert_ycbcrimage; + *m++=(uint8*)(sp->subsampling_convert_ycbcrimage+3); + *m++=(uint8*)(sp->subsampling_convert_ycbcrimage+3+sp->subsampling_convert_ylines); + *m++=(uint8*)(sp->subsampling_convert_ycbcrimage+3+sp->subsampling_convert_ylines+sp->subsampling_convert_clines); + for (n=0; n<sp->subsampling_convert_ylines; n++) + *m++=sp->subsampling_convert_ybuf+n*sp->subsampling_convert_ylinelen; + for (n=0; n<sp->subsampling_convert_clines; n++) + *m++=sp->subsampling_convert_cbbuf+n*sp->subsampling_convert_clinelen; + for (n=0; n<sp->subsampling_convert_clines; n++) + *m++=sp->subsampling_convert_crbuf+n*sp->subsampling_convert_clinelen; + sp->subsampling_convert_clinelenout=((sp->strile_width+sp->subsampling_hor-1)/sp->subsampling_hor); + sp->subsampling_convert_state=0; + sp->bytes_per_line=sp->subsampling_convert_clinelenout*(sp->subsampling_ver*sp->subsampling_hor+2); + sp->lines_per_strile=((sp->strile_length+sp->subsampling_ver-1)/sp->subsampling_ver); + sp->subsampling_convert_log=1; + } + } + else + { + sp->libjpeg_jpeg_decompress_struct.jpeg_color_space=JCS_UNKNOWN; + sp->libjpeg_jpeg_decompress_struct.out_color_space=JCS_UNKNOWN; + sp->libjpeg_jpeg_query_style=1; + sp->bytes_per_line=sp->samples_per_pixel_per_plane*sp->strile_width; + sp->lines_per_strile=sp->strile_length; + } + if (jpeg_start_decompress_encap(sp,&(sp->libjpeg_jpeg_decompress_struct))==0) + return(0); + sp->writeheader_done=1; + return(1); +} static void -std_skip_input_data(register j_decompress_ptr cinfo, long num_bytes) - { -# define sp ((OJPEGState *)cinfo) - - if (num_bytes > 0) - { - if (num_bytes > (long)sp->src.bytes_in_buffer) /* oops: buffer overrun */ - (void)std_fill_input_buffer(cinfo); - else - { - sp->src.next_input_byte += (size_t)num_bytes; - sp->src.bytes_in_buffer -= (size_t)num_bytes; - } - } -# undef sp - } - -/*ARGSUSED*/ static void -std_term_source(register j_decompress_ptr cinfo){} /* "Dummy" stub */ - -/* Allocate temporary I/O buffers for downsampled data, using values computed in - "jpeg_start_{de}compress()". We use the JPEG Library's allocator so that - buffers will be released automatically when done with a strip/tile. This is - also a handy place to compute samplesperclump, bytesperline, etc. -*/ +OJPEGLibjpegSessionAbort(TIFF* tif) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + assert(sp->libjpeg_session_active!=0); + jpeg_destroy((jpeg_common_struct*)(&(sp->libjpeg_jpeg_decompress_struct))); + sp->libjpeg_session_active=0; +} + static int -alloc_downsampled_buffers(TIFF *tif,jpeg_component_info *comp_info, - int num_components) - { register OJPEGState *sp = OJState(tif); - - sp->samplesperclump = 0; - if (num_components > 0) - { tsize_t size = sp->cinfo.comm.is_decompressor -# ifdef D_LOSSLESS_SUPPORTED - ? sp->cinfo.d.min_codec_data_unit -# else - ? DCTSIZE -# endif -# ifdef C_LOSSLESS_SUPPORTED - : sp->cinfo.c.data_unit; -# else - : DCTSIZE; -# endif - int ci = 0; - register jpeg_component_info *compptr = comp_info; - - do - { JSAMPARRAY buf; - - sp->samplesperclump += - compptr->h_samp_factor * compptr->v_samp_factor; -# if defined(C_LOSSLESS_SUPPORTED) || defined(D_LOSSLESS_SUPPORTED) - if (!(buf = CALLJPEG(sp,0,(*sp->cinfo.comm.mem->alloc_sarray)(&sp->cinfo.comm,JPOOL_IMAGE,compptr->width_in_data_units*size,compptr->v_samp_factor*size)))) -# else - if (!(buf = CALLJPEG(sp,0,(*sp->cinfo.comm.mem->alloc_sarray)(&sp->cinfo.comm,JPOOL_IMAGE,compptr->width_in_blocks*size,compptr->v_samp_factor*size)))) -# endif - return 0; - sp->ds_buffer[ci] = buf; - } - while (++compptr,++ci < num_components); - }; - return 1; - } -#ifdef never - -/* JPEG Encoding begins here. */ - -/*ARGSUSED*/ static int -OJPEGEncode(register TIFF *tif,tidata_t buf,tsize_t cc,tsample_t s) - { tsize_t rows; /* No. of unprocessed rows in file */ - register OJPEGState *sp = OJState(tif); - - /* Encode a chunk of pixels, where returned data is NOT down-sampled (the - standard case). The data is expected to be written in scan-line multiples. - */ - if (cc % sp->bytesperline) TIFFWarning(tif->tif_name,no_write_frac); - if ( (cc /= bytesperline) /* No. of complete rows in caller's buffer */ - > (rows = sp->cinfo.c.image_height - sp->cinfo.c.next_scanline) - ) cc = rows; - while (--cc >= 0) - { - if ( CALLJPEG(sp,-1,jpeg_write_scanlines(&sp->cinfo.c,(JSAMPARRAY)&buf,1)) - != 1 - ) return 0; - ++tif->tif_row; - buf += sp->bytesperline; - }; - return 1; - } - -/*ARGSUSED*/ static int -OJPEGEncodeRaw(register TIFF *tif,tidata_t buf,tsize_t cc,tsample_t s) - { tsize_t rows; /* No. of unprocessed rows in file */ - JDIMENSION lines_per_MCU, size; - register OJPEGState *sp = OJState(tif); - - /* Encode a chunk of pixels, where returned data is down-sampled as per the - sampling factors. The data is expected to be written in scan-line - multiples. - */ - cc /= sp->bytesperline; - if (cc % sp->bytesperline) TIFFWarning(tif->tif_name,no_write_frac); - if ( (cc /= bytesperline) /* No. of complete rows in caller's buffer */ - > (rows = sp->cinfo.c.image_height - sp->cinfo.c.next_scanline) - ) cc = rows; -# ifdef C_LOSSLESS_SUPPORTED - lines_per_MCU = sp->cinfo.c.max_samp_factor*(size = sp->cinfo.d.data_unit); -# else - lines_per_MCU = sp->cinfo.c.max_samp_factor*(size = DCTSIZE); -# endif - while (--cc >= 0) - { int ci = 0, clumpoffset = 0; - register jpeg_component_info *compptr = sp->cinfo.c.comp_info; - - /* The fastest way to separate the data is to make 1 pass over the scan - line for each row of each component. - */ - do - { int ypos = 0; - - do - { int padding; - register JSAMPLE *inptr = (JSAMPLE*)buf + clumpoffset, - *outptr = - sp->ds_buffer[ci][sp->scancount*compptr->v_samp_factor+ypos]; - /* Cb,Cr both have sampling factors 1, so this is correct */ - register int clumps_per_line = - sp->cinfo.c.comp_info[1].downsampled_width, - xpos; - - padding = (int) -# ifdef C_LOSSLESS_SUPPORTED - ( compptr->width_in_data_units * size -# else - ( compptr->width_in_blocks * size -# endif - - clumps_per_line * compptr->h_samp_factor - ); - if (compptr->h_samp_factor == 1) /* Cb & Cr fast path */ - do *outptr++ = *inptr; - while ((inptr += sp->samplesperclump),--clumps_per_line > 0); - else /* general case */ - do - { - xpos = 0; - do *outptr++ = inptr[xpos]; - while (++xpos < compptr->h_samp_factor); - } - while ((inptr += sp->samplesperclump),--clumps_per_line > 0); - xpos = 0; /* Pad each scan line as needed */ - do outptr[0] = outptr[-1]; while (++outptr,++xpos < padding); - clumpoffset += compptr->h_samp_factor; - } - while (++ypos < compptr->v_samp_factor); - } - while (++compptr,++ci < sp->cinfo.c.num_components); - if (++sp->scancount >= size) - { - if ( CALLJPEG(sp,-1,jpeg_write_raw_data(&sp->cinfo.c,sp->ds_buffer,lines_per_MCU)) - != lines_per_MCU - ) return 0; - sp->scancount = 0; - }; - ++tif->tif_row++ - buf += sp->bytesperline; - }; - return 1; - } +OJPEGReadHeaderInfoSec(TIFF* tif) +{ + static const char module[]="OJPEGReadHeaderInfoSec"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8 m; + uint16 n; + uint8 o; + if (sp->file_size==0) + sp->file_size=TIFFGetFileSize(tif); + if (sp->jpeg_interchange_format!=0) + { + if (sp->jpeg_interchange_format>=sp->file_size) + { + sp->jpeg_interchange_format=0; + sp->jpeg_interchange_format_length=0; + } + else + { + if ((sp->jpeg_interchange_format_length==0) || (sp->jpeg_interchange_format+sp->jpeg_interchange_format_length>sp->file_size)) + sp->jpeg_interchange_format_length=sp->file_size-sp->jpeg_interchange_format; + } + } + sp->in_buffer_source=osibsNotSetYet; + sp->in_buffer_next_strile=0; + sp->in_buffer_strile_count=tif->tif_dir.td_nstrips; + sp->in_buffer_file_togo=0; + sp->in_buffer_togo=0; + do + { + if (OJPEGReadBytePeek(sp,&m)==0) + return(0); + if (m!=255) + break; + OJPEGReadByteAdvance(sp); + do + { + if (OJPEGReadByte(sp,&m)==0) + return(0); + } while(m==255); + switch(m) + { + case JPEG_MARKER_SOI: + /* this type of marker has no data, and should be skipped */ + break; + case JPEG_MARKER_COM: + case JPEG_MARKER_APP0: + case JPEG_MARKER_APP0+1: + case JPEG_MARKER_APP0+2: + case JPEG_MARKER_APP0+3: + case JPEG_MARKER_APP0+4: + case JPEG_MARKER_APP0+5: + case JPEG_MARKER_APP0+6: + case JPEG_MARKER_APP0+7: + case JPEG_MARKER_APP0+8: + case JPEG_MARKER_APP0+9: + case JPEG_MARKER_APP0+10: + case JPEG_MARKER_APP0+11: + case JPEG_MARKER_APP0+12: + case JPEG_MARKER_APP0+13: + case JPEG_MARKER_APP0+14: + case JPEG_MARKER_APP0+15: + /* this type of marker has data, but it has no use to us (and no place here) and should be skipped */ + if (OJPEGReadWord(sp,&n)==0) + return(0); + if (n<2) + { + if (sp->subsamplingcorrect==0) + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt JPEG data"); + return(0); + } + if (n>2) + OJPEGReadSkip(sp,n-2); + break; + case JPEG_MARKER_DRI: + if (OJPEGReadHeaderInfoSecStreamDri(tif)==0) + return(0); + break; + case JPEG_MARKER_DQT: + if (OJPEGReadHeaderInfoSecStreamDqt(tif)==0) + return(0); + break; + case JPEG_MARKER_DHT: + if (OJPEGReadHeaderInfoSecStreamDht(tif)==0) + return(0); + break; + case JPEG_MARKER_SOF0: + case JPEG_MARKER_SOF1: + case JPEG_MARKER_SOF3: + if (OJPEGReadHeaderInfoSecStreamSof(tif,m)==0) + return(0); + if (sp->subsamplingcorrect!=0) + return(1); + break; + case JPEG_MARKER_SOS: + if (sp->subsamplingcorrect!=0) + return(1); + assert(sp->plane_sample_offset==0); + if (OJPEGReadHeaderInfoSecStreamSos(tif)==0) + return(0); + break; + default: + TIFFErrorExt(tif->tif_clientdata,module,"Unknown marker type %d in JPEG data",m); + return(0); + } + } while(m!=JPEG_MARKER_SOS); + if (sp->subsamplingcorrect) + return(1); + if (sp->sof_log==0) + { + if (OJPEGReadHeaderInfoSecTablesQTable(tif)==0) + return(0); + sp->sof_marker_id=JPEG_MARKER_SOF0; + for (o=0; o<sp->samples_per_pixel; o++) + sp->sof_c[o]=o; + sp->sof_hv[0]=((sp->subsampling_hor<<4)|sp->subsampling_ver); + for (o=1; o<sp->samples_per_pixel; o++) + sp->sof_hv[o]=17; + sp->sof_x=sp->strile_width; + sp->sof_y=sp->strile_length_total; + sp->sof_log=1; + if (OJPEGReadHeaderInfoSecTablesDcTable(tif)==0) + return(0); + if (OJPEGReadHeaderInfoSecTablesAcTable(tif)==0) + return(0); + for (o=1; o<sp->samples_per_pixel; o++) + sp->sos_cs[o]=o; + } + return(1); +} static int -OJPEGSetupEncode(register TIFF *tif) - { static const char module[]={"OJPEGSetupEncode"}; - uint32 segment_height, segment_width; - int status = 1; /* Assume success by default */ - register OJPEGState *sp = OJState(tif); -# define td (&tif->tif_dir) - - /* Verify miscellaneous parameters. This will need work if the TIFF Library - ever supports different depths for different components, or if the JPEG - Library ever supports run-time depth selection. Neither seems imminent. - */ - if (td->td_bitspersample != 8) - { - TIFFError(module,bad_bps,td->td_bitspersample); - status = 0; - }; - - /* The TIFF Version 6.0 specification and IJG JPEG Library accept different - sets of color spaces, so verify that our image belongs to the common subset - and map its photometry code, then initialize to handle subsampling and - optional JPEG Library YCbCr <-> RGB color-space conversion. - */ - switch (td->td_photometric) - { - case PHOTOMETRIC_YCBCR : - - /* ISO IS 10918-1 requires that JPEG subsampling factors be 1-4, but - TIFF Version 6.0 is more restrictive: only 1, 2, and 4 are allowed. - */ - if ( ( td->td_ycbcrsubsampling[0] == 1 - || td->td_ycbcrsubsampling[0] == 2 - || td->td_ycbcrsubsampling[0] == 4 - ) - && ( td->td_ycbcrsubsampling[1] == 1 - || td->td_ycbcrsubsampling[1] == 2 - || td->td_ycbcrsubsampling[1] == 4 - ) - ) - sp->cinfo.c.raw_data_in = - ( (sp->h_sampling = td->td_ycbcrsubsampling[0]) << 3 - | (sp->v_sampling = td->td_ycbcrsubsampling[1]) - ) != 011; - else - { - TIFFError(module,bad_subsampling); - status = 0; - }; - - /* A ReferenceBlackWhite field MUST be present, since the default value - is inapproriate for YCbCr. Fill in the proper value if the - application didn't set it. - */ - if (!TIFFFieldSet(tif,FIELD_REFBLACKWHITE)) - { float refbw[6]; - long top = 1L << td->td_bitspersample; - - refbw[0] = 0; - refbw[1] = (float)(top-1L); - refbw[2] = (float)(top>>1); - refbw[3] = refbw[1]; - refbw[4] = refbw[2]; - refbw[5] = refbw[1]; - TIFFSetField(tif,TIFFTAG_REFERENCEBLACKWHITE,refbw); - }; - sp->cinfo.c.jpeg_color_space = JCS_YCbCr; - if (sp->jpegcolormode == JPEGCOLORMODE_RGB) - { - sp->cinfo.c.raw_data_in = FALSE; - sp->in_color_space = JCS_RGB; - break; - }; - goto L2; - case PHOTOMETRIC_MINISBLACK: - sp->cinfo.c.jpeg_color_space = JCS_GRAYSCALE; - goto L1; - case PHOTOMETRIC_RGB : - sp->cinfo.c.jpeg_color_space = JCS_RGB; - goto L1; - case PHOTOMETRIC_SEPARATED : - sp->cinfo.c.jpeg_color_space = JCS_CMYK; - L1: sp->jpegcolormode = JPEGCOLORMODE_RAW; /* No JPEG Lib. conversion */ - L2: sp->cinfo.d.in_color_space = sp->cinfo.d.jpeg_color-space; - break; - default : - TIFFError(module,bad_photometry,td->td_photometric); - status = 0; - }; - tif->tif_encoderow = tif->tif_encodestrip = tif->tif_encodetile = - sp->cinfo.c.raw_data_in ? OJPEGEncodeRaw : OJPEGEncode; - if (isTiled(tif)) - { tsize_t size; - -# ifdef C_LOSSLESS_SUPPORTED - if ((size = sp->v_sampling*sp->cinfo.c.data_unit) < 16) size = 16; -# else - if ((size = sp->v_sampling*DCTSIZE) < 16) size = 16; -# endif - if ((segment_height = td->td_tilelength) % size) - { - TIFFError(module,"JPEG tile height must be multiple of %d",size); - status = 0; - }; -# ifdef C_LOSSLESS_SUPPORTED - if ((size = sp->h_sampling*sp->cinfo.c.data_unit) < 16) size = 16; -# else - if ((size = sp->h_sampling*DCTSIZE) < 16) size = 16; -# endif - if ((segment_width = td->td_tilewidth) % size) - { - TIFFError(module,"JPEG tile width must be multiple of %d",size); - status = 0; - }; - sp->bytesperline = TIFFTileRowSize(tif); - } - else - { tsize_t size; - -# ifdef C_LOSSLESS_SUPPORTED - if ((size = sp->v_sampling*sp->cinfo.c.data_unit) < 16) size = 16; -# else - if ((size = sp->v_sampling*DCTSIZE) < 16) size = 16; -# endif - if (td->td_rowsperstrip < (segment_height = td->td_imagelength)) - { - if (td->td_rowsperstrip % size) - { - TIFFError(module,"JPEG RowsPerStrip must be multiple of %d",size); - status = 0; - }; - segment_height = td->td_rowsperstrip; - }; - segment_width = td->td_imagewidth; - sp->bytesperline = tif->tif_scanlinesize; - }; - if (segment_width > 65535 || segment_height > 65535) - { - TIFFError(module,"Strip/tile too large for JPEG"); - status = 0; - }; - - /* Initialize all JPEG parameters to default values. Note that the JPEG - Library's "jpeg_set_defaults()" method needs legal values for the - "in_color_space" and "input_components" fields. - */ - sp->cinfo.c.input_components = 1; /* Default for JCS_UNKNOWN */ - if (!CALLVJPEG(sp,jpeg_set_defaults(&sp->cinfo.c))) status = 0; - switch (sp->jpegtablesmode & (JPEGTABLESMODE_HUFF|JPEGTABLESMODE_QUANT)) - { register JHUFF_TBL *htbl; - register JQUANT_TBL *qtbl; - - case 0 : - sp->cinfo.c.optimize_coding = TRUE; - case JPEGTABLESMODE_HUFF : - if (!CALLVJPEG(sp,jpeg_set_quality(&sp->cinfo.c,sp->jpegquality,FALSE))) - return 0; - if (qtbl = sp->cinfo.c.quant_tbl_ptrs[0]) qtbl->sent_table = FALSE; - if (qtbl = sp->cinfo.c.quant_tbl_ptrs[1]) qtbl->sent_table = FALSE; - goto L3; - case JPEGTABLESMODE_QUANT : - sp->cinfo.c.optimize_coding = TRUE; - - /* We do not support application-supplied JPEG tables, so mark the field - "not present". - */ - L3: TIFFClrFieldBit(tif,FIELD_JPEGTABLES); - break; - case JPEGTABLESMODE_HUFF|JPEGTABLESMODE_QUANT: - if ( !CALLVJPEG(sp,jpeg_set_quality(&sp->cinfo.c,sp->jpegquality,FALSE)) - || !CALLVJPEG(sp,jpeg_suppress_tables(&sp->cinfo.c,TRUE)) - ) - { - status = 0; - break; - }; - if (qtbl = sp->cinfo.c.quant_tbl_ptrs[0]) qtbl->sent_table = FALSE; - if (htbl = sp->cinfo.c.dc_huff_tbl_ptrs[0]) htbl->sent_table = FALSE; - if (htbl = sp->cinfo.c.ac_huff_tbl_ptrs[0]) htbl->sent_table = FALSE; - if (sp->cinfo.c.jpeg_color_space == JCS_YCbCr) - { - if (qtbl = sp->cinfo.c.quant_tbl_ptrs[1]) - qtbl->sent_table = FALSE; - if (htbl = sp->cinfo.c.dc_huff_tbl_ptrs[1]) - htbl->sent_table = FALSE; - if (htbl = sp->cinfo.c.ac_huff_tbl_ptrs[1]) - htbl->sent_table = FALSE; - }; - if ( TIFFojpeg_tables_dest(sp,tif) - && CALLVJPEG(sp,jpeg_write_tables(&sp->cinfo.c)) - ) - { - - /* Mark the field "present". We can't use "TIFFSetField()" because - "BEENWRITING" is already set! - */ - TIFFSetFieldBit(tif,FIELD_JPEGTABLES); - tif->tif_flags |= TIFF_DIRTYDIRECT; - } - else status = 0; - }; - if ( sp->cinfo.c.raw_data_in - && !alloc_downsampled_buffers(tif,sp->cinfo.c.comp_info, - sp->cinfo.c.num_components) - ) status = 0; - if (status == 0) return 0; /* If TIFF errors, don't bother to continue */ - /* Grab parameters that are same for all strips/tiles. */ - - sp->dest.init_destination = std_init_destination; - sp->dest.empty_output_buffer = std_empty_output_buffer; - sp->dest.term_destination = std_term_destination; - sp->cinfo.c.dest = &sp->dest; - sp->cinfo.c.data_precision = td->td_bitspersample; - sp->cinfo.c.write_JFIF_header = /* Don't write extraneous markers */ - sp->cinfo.c.write_Adobe_marker = FALSE; - sp->cinfo.c.image_width = segment_width; - sp->cinfo.c.image_height = segment_height; - sp->cinfo.c.comp_info[0].h_samp_factor = - sp->cinfo.c.comp_info[0].v_samp_factor = 1; - return CALLVJPEG(sp,jpeg_start_compress(&sp->cinfo.c,FALSE)); -# undef td - } +OJPEGReadHeaderInfoSecStreamDri(TIFF* tif) +{ + /* this could easilly cause trouble in some cases... but no such cases have occured sofar */ + static const char module[]="OJPEGReadHeaderInfoSecStreamDri"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint16 m; + if (OJPEGReadWord(sp,&m)==0) + return(0); + if (m!=4) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DRI marker in JPEG data"); + return(0); + } + if (OJPEGReadWord(sp,&m)==0) + return(0); + sp->restart_interval=m; + return(1); +} static int -OJPEGPreEncode(register TIFF *tif,tsample_t s) - { register OJPEGState *sp = OJState(tif); -# define td (&tif->tif_dir) - - /* If we are about to write the first row of an image plane, which should - coincide with a JPEG "scan", reset the JPEG Library's compressor. Otherwise - let the compressor run "as is" and return a "success" status without further - ado. - */ - if ( (isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip) - % td->td_stripsperimage - == 0 - ) - { - if ( (sp->cinfo.c.comp_info[0].component_id = s) == 1) - && sp->cinfo.c.jpeg_color_space == JCS_YCbCr - ) - { - sp->cinfo.c.comp_info[0].quant_tbl_no = - sp->cinfo.c.comp_info[0].dc_tbl_no = - sp->cinfo.c.comp_info[0].ac_tbl_no = 1; - sp->cinfo.c.comp_info[0].h_samp_factor = sp->h_sampling; - sp->cinfo.c.comp_info[0].v_samp_factor = sp->v_sampling; - - /* Scale expected strip/tile size to match a downsampled component. */ - - sp->cinfo.c.image_width = TIFFhowmany(segment_width,sp->h_sampling); - sp->cinfo.c.image_height=TIFFhowmany(segment_height,sp->v_sampling); - }; - sp->scancount = 0; /* Mark subsampling buffer(s) empty */ - }; - return 1; -# undef td - } +OJPEGReadHeaderInfoSecStreamDqt(TIFF* tif) +{ + /* this is a table marker, and it is to be saved as a whole for exact pushing on the jpeg stream later on */ + static const char module[]="OJPEGReadHeaderInfoSecStreamDqt"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint16 m; + uint32 na; + uint8* nb; + uint8 o; + if (OJPEGReadWord(sp,&m)==0) + return(0); + if (m<=2) + { + if (sp->subsamplingcorrect==0) + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DQT marker in JPEG data"); + return(0); + } + if (sp->subsamplingcorrect!=0) + OJPEGReadSkip(sp,m-2); + else + { + m-=2; + do + { + if (m<65) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DQT marker in JPEG data"); + return(0); + } + na=sizeof(uint32)+69; + nb=_TIFFmalloc(na); + if (nb==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); + return(0); + } + *(uint32*)nb=na; + nb[sizeof(uint32)]=255; + nb[sizeof(uint32)+1]=JPEG_MARKER_DQT; + nb[sizeof(uint32)+2]=0; + nb[sizeof(uint32)+3]=67; + if (OJPEGReadBlock(sp,65,&nb[sizeof(uint32)+4])==0) + return(0); + o=nb[sizeof(uint32)+4]&15; + if (3<o) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DQT marker in JPEG data"); + return(0); + } + if (sp->qtable[o]!=0) + _TIFFfree(sp->qtable[o]); + sp->qtable[o]=nb; + m-=65; + } while(m>0); + } + return(1); +} static int -OJPEGPostEncode(register TIFF *tif) - { register OJPEGState *sp = OJState(tif); - - /* Finish up at the end of a strip or tile. */ - - if (sp->scancount > 0) /* emit partial buffer of down-sampled data */ - { JDIMENSION n; - -# ifdef C_LOSSLESS_SUPPORTED - if ( sp->scancount < sp->cinfo.c.data_unit - && sp->cinfo.c.num_components > 0 - ) -# else - if (sp->scancount < DCTSIZE && sp->cinfo.c.num_components > 0) -# endif - { int ci = 0, /* Pad the data vertically */ -# ifdef C_LOSSLESS_SUPPORTED - size = sp->cinfo.c.data_unit; -# else - size = DCTSIZE; -# endif - register jpeg_component_info *compptr = sp->cinfo.c.comp_info; - - do -# ifdef C_LOSSLESS_SUPPORTED - { tsize_t row_width = compptr->width_in_data_units -# else - tsize_t row_width = compptr->width_in_blocks -# endif - *size*sizeof(JSAMPLE); - int ypos = sp->scancount*compptr->v_samp_factor; - - do _TIFFmemcpy( (tdata_t)sp->ds_buffer[ci][ypos] - , (tdata_t)sp->ds_buffer[ci][ypos-1] - , row_width - ); - while (++ypos < compptr->v_samp_factor*size); - } - while (++compptr,++ci < sp->cinfo.c.num_components); - }; - n = sp->cinfo.c.max_v_samp_factor*size; - if (CALLJPEG(sp,-1,jpeg_write_raw_data(&sp->cinfo.c,sp->ds_buffer,n)) != n) - return 0; - }; - return CALLVJPEG(sp,jpeg_finish_compress(&sp->cinfo.c)); - } -#endif /* never */ - -/* JPEG Decoding begins here. */ - -/*ARGSUSED*/ static int -OJPEGDecode(register TIFF *tif,tidata_t buf,tsize_t cc,tsample_t s) - { tsize_t bytesperline = isTiled(tif) - ? TIFFTileRowSize(tif) - : tif->tif_scanlinesize, - rows; /* No. of unprocessed rows in file */ - register OJPEGState *sp = OJState(tif); - - /* Decode a chunk of pixels, where the input data has not NOT been down- - sampled, or else the TIFF Library's client has used the "JPEGColorMode" TIFF - pseudo-tag to request that the JPEG Library do color-space conversion; this - is the normal case. The data is expected to be read in scan-line multiples, - and this subroutine is called for both pixel-interleaved and separate color - planes. - - WARNING: Unlike "OJPEGDecodeRawContig()", below, the no. of Bytes in each - decoded row is calculated here as "bytesperline" instead of - using "sp->bytesperline", which might be a little smaller. This can - occur for an old tiled image whose width isn't a multiple of 8 pixels. - That's illegal according to the TIFF Version 6 specification, but some - test files, like "zackthecat.tif", were built that way. In those cases, - we want to embed the image's true width in our caller's buffer (which is - presumably allocated according to the expected tile width) by - effectively "padding" it with unused Bytes at the end of each row. - */ - if ( (cc /= bytesperline) /* No. of complete rows in caller's buffer */ - > (rows = sp->cinfo.d.output_height - sp->cinfo.d.output_scanline) - ) cc = rows; - while (--cc >= 0) - { - if ( CALLJPEG(sp,-1,jpeg_read_scanlines(&sp->cinfo.d,(JSAMPARRAY)&buf,1)) - != 1 - ) return 0; - buf += bytesperline; - ++tif->tif_row; - }; - - /* BEWARE OF KLUDGE: If our input file was produced by Microsoft's Wang - Imaging for Windows application, the DC coefficients of - each JPEG image component (Y,Cb,Cr) must be reset at the end of each TIFF - "strip", and any JPEG data bits remaining in the current Byte of the - decoder's input buffer must be discarded. To do so, we create an "ad hoc" - interface in the "jdhuff.c" module of IJG JPEG Library Version 6 (module - "jdshuff.c", if Ken Murchison's lossless-Huffman patch is applied), and we - invoke that interface here after decoding each "strip". - */ - if (sp->is_WANG) jpeg_reset_huff_decode(&sp->cinfo.d); - return 1; - } - -/*ARGSUSED*/ static int -OJPEGDecodeRawContig(register TIFF *tif,tidata_t buf,tsize_t cc,tsample_t s) - { tsize_t rows; /* No. of unprocessed rows in file */ - JDIMENSION lines_per_MCU, size; - register OJPEGState *sp = OJState(tif); - - /* Decode a chunk of pixels, where the input data has pixel-interleaved color - planes, some of which have been down-sampled, but the TIFF Library's client - has NOT used the "JPEGColorMode" TIFF pseudo-tag to request that the JPEG - Library do color-space conversion. In other words, we must up-sample/ - expand/duplicate image components according to the image's sampling factors, - without changing its color space. The data is expected to be read in scan- - line multiples. - */ - if ( (cc /= sp->bytesperline) /* No. of complete rows in caller's buffer */ - > (rows = sp->cinfo.d.output_height - sp->cinfo.d.output_scanline) - ) cc = rows; - lines_per_MCU = sp->cinfo.d.max_v_samp_factor -# ifdef D_LOSSLESS_SUPPORTED - * (size = sp->cinfo.d.min_codec_data_unit); -# else - * (size = DCTSIZE); -# endif - while (--cc >= 0) - { int clumpoffset, ci; - register jpeg_component_info *compptr; - - if (sp->scancount >= size) /* reload downsampled-data buffers */ - { - if ( CALLJPEG(sp,-1,jpeg_read_raw_data(&sp->cinfo.d,sp->ds_buffer,lines_per_MCU)) - != lines_per_MCU - ) return 0; - sp->scancount = 0; - }; - - /* The fastest way to separate the data is: make 1 pass over the scan - line for each row of each component. - */ - clumpoffset = ci = 0; - compptr = sp->cinfo.d.comp_info; - do - { int ypos = 0; - - if (compptr->h_samp_factor == 1) /* fast path */ - do - { register JSAMPLE *inptr = - sp->ds_buffer[ci][sp->scancount*compptr->v_samp_factor+ypos], - *outptr = (JSAMPLE *)buf + clumpoffset; - register int clumps_per_line = compptr->downsampled_width; - - do *outptr = *inptr++; - while ((outptr += sp->samplesperclump),--clumps_per_line > 0); - } - while ( (clumpoffset += compptr->h_samp_factor) - , ++ypos < compptr->v_samp_factor - ); - else /* general case */ - do - { register JSAMPLE *inptr = - sp->ds_buffer[ci][sp->scancount*compptr->v_samp_factor+ypos], - *outptr = (JSAMPLE *)buf + clumpoffset; - register int clumps_per_line = compptr->downsampled_width; - - do - { register int xpos = 0; - - do outptr[xpos] = *inptr++; - while (++xpos < compptr->h_samp_factor); - } - while ((outptr += sp->samplesperclump),--clumps_per_line > 0); - } - while ( (clumpoffset += compptr->h_samp_factor) - , ++ypos < compptr->v_samp_factor - ); - } - while (++compptr,++ci < sp->cinfo.d.num_components); - ++sp->scancount; - buf += sp->bytesperline; - ++tif->tif_row; - }; - - /* BEWARE OF KLUDGE: If our input file was produced by Microsoft's Wang - Imaging for Windows application, the DC coefficients of - each JPEG image component (Y,Cb,Cr) must be reset at the end of each TIFF - "strip", and any JPEG data bits remaining in the current Byte of the - decoder's input buffer must be discarded. To do so, we create an "ad hoc" - interface in the "jdhuff.c" module of IJG JPEG Library Version 6 (module - "jdshuff.c", if Ken Murchison's lossless-Huffman patch is applied), and we - invoke that interface here after decoding each "strip". - */ - if (sp->is_WANG) jpeg_reset_huff_decode(&sp->cinfo.d); - return 1; - } - -/*ARGSUSED*/ static int -OJPEGDecodeRawSeparate(TIFF *tif,register tidata_t buf,tsize_t cc,tsample_t s) - { tsize_t rows; /* No. of unprocessed rows in file */ - JDIMENSION lines_per_MCU, - size, /* ...of MCU */ - v; /* Component's vertical up-sampling ratio */ - register OJPEGState *sp = OJState(tif); - register jpeg_component_info *compptr = sp->cinfo.d.comp_info + s; - - /* Decode a chunk of pixels, where the input data has separate color planes, - some of which have been down-sampled, but the TIFF Library's client has NOT - used the "JPEGColorMode" TIFF pseudo-tag to request that the JPEG Library - do color-space conversion. The data is expected to be read in scan-line - multiples. - */ - v = sp->cinfo.d.max_v_samp_factor/compptr->v_samp_factor; - if ( (cc /= compptr->downsampled_width) /* No. of rows in caller's buffer */ - > (rows = (sp->cinfo.d.output_height-sp->cinfo.d.output_scanline+v-1)/v) - ) cc = rows; /* No. of rows of "clumps" to read */ - lines_per_MCU = sp->cinfo.d.max_v_samp_factor -# ifdef D_LOSSLESS_SUPPORTED - * (size = sp->cinfo.d.min_codec_data_unit); -# else - * (size = DCTSIZE); -# endif - L: if (sp->scancount >= size) /* reload downsampled-data buffers */ - { - if ( CALLJPEG(sp,-1,jpeg_read_raw_data(&sp->cinfo.d,sp->ds_buffer,lines_per_MCU)) - != lines_per_MCU - ) return 0; - sp->scancount = 0; - }; - rows = 0; - do - { register JSAMPLE *inptr = - sp->ds_buffer[s][sp->scancount*compptr->v_samp_factor + rows]; - register int clumps_per_line = compptr->downsampled_width; - - do *buf++ = *inptr++; while (--clumps_per_line > 0); /* Copy scanline */ - tif->tif_row += v; - if (--cc <= 0) return 1; /* End of caller's buffer? */ - } - while (++rows < compptr->v_samp_factor); - ++sp->scancount; - goto L; - } - -/* "OJPEGSetupDecode()" temporarily forces the JPEG Library to use the following - subroutine as a "dummy" input reader in order to fool the library into - thinking that it has read the image's first "Start of Scan" (SOS) marker, so - that it initializes accordingly. -*/ -/*ARGSUSED*/ METHODDEF(int) -fake_SOS_marker(j_decompress_ptr cinfo){return JPEG_REACHED_SOS;} - -/*ARGSUSED*/ METHODDEF(int) -suspend(j_decompress_ptr cinfo){return JPEG_SUSPENDED;} - -/* The JPEG Library's "null" color-space converter actually re-packs separate - color planes (it's native image representation) into a pixel-interleaved, - contiguous plane. But if our TIFF Library client is tryng to process a - PLANARCONFIG_SEPARATE image, we don't want that; so here are modifications of - code in the JPEG Library's "jdcolor.c" file, which simply copy Bytes to a - color plane specified by the current JPEG "scan". -*/ -METHODDEF(void) -ycc_rgb_convert(register j_decompress_ptr cinfo,JSAMPIMAGE in,JDIMENSION row, - register JSAMPARRAY out,register int nrows) - { typedef struct /* "jdcolor.c" color-space conversion state */ - { - - /* WARNING: This declaration is ugly and dangerous! It's supposed to be - private to the JPEG Library's "jdcolor.c" module, but we also - need it here. Since the library's copy might change without notice, be - sure to keep this one synchronized or the following code will break! - */ - struct jpeg_color_deconverter pub; /* Public fields */ - /* Private state for YCC->RGB conversion */ - int *Cr_r_tab, /* ->Cr to R conversion table */ - *Cb_b_tab; /* ->Cb to B conversion table */ - INT32 *Cr_g_tab, /* ->Cr to G conversion table */ - *Cb_g_tab; /* ->Cb to G conversion table */ - } *my_cconvert_ptr; - my_cconvert_ptr cconvert = (my_cconvert_ptr)cinfo->cconvert; - JSAMPARRAY irow0p = in[0] + row; - register JSAMPLE *range_limit = cinfo->sample_range_limit; - register JSAMPROW outp, Y; - - switch (cinfo->output_scan_number - 1) - { JSAMPARRAY irow1p, irow2p; - register INT32 *table0, *table1; - SHIFT_TEMPS - - case RGB_RED : irow2p = in[2] + row; - table0 = (INT32 *)cconvert->Cr_r_tab; - while (--nrows >= 0) - { register JSAMPROW Cr = *irow2p++; - register int i = cinfo->output_width; - - Y = *irow0p++; - outp = *out++; - while (--i >= 0) - *outp++ = range_limit[*Y++ + table0[*Cr++]]; - }; - return; - case RGB_GREEN: irow1p = in[1] + row; - irow2p = in[2] + row; - table0 = cconvert->Cb_g_tab; - table1 = cconvert->Cr_g_tab; - while (--nrows >= 0) - { register JSAMPROW Cb = *irow1p++, - Cr = *irow2p++; - register int i = cinfo->output_width; - - Y = *irow0p++; - outp = *out++; - while (--i >= 0) - *outp++ = - range_limit[ *Y++ - + RIGHT_SHIFT(table0[*Cb++]+table1[*Cr++],16) - ]; - }; - return; - case RGB_BLUE : irow1p = in[1] + row; - table0 = (INT32 *)cconvert->Cb_b_tab; - while (--nrows >= 0) - { register JSAMPROW Cb = *irow1p++; - register int i = cinfo->output_width; - - Y = *irow0p++; - outp = *out++; - while (--i >= 0) - *outp++ = range_limit[*Y++ + table0[*Cb++]]; - } - } - } - -METHODDEF(void) -null_convert(register j_decompress_ptr cinfo,JSAMPIMAGE in,JDIMENSION row, - register JSAMPARRAY out,register int nrows) - { register JSAMPARRAY irowp = in[cinfo->output_scan_number - 1] + row; - - while (--nrows >= 0) _TIFFmemcpy(*out++,*irowp++,cinfo->output_width); - } +OJPEGReadHeaderInfoSecStreamDht(TIFF* tif) +{ + /* this is a table marker, and it is to be saved as a whole for exact pushing on the jpeg stream later on */ + /* TODO: the following assumes there is only one table in this marker... but i'm not quite sure that assumption is guaranteed correct */ + static const char module[]="OJPEGReadHeaderInfoSecStreamDht"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint16 m; + uint32 na; + uint8* nb; + uint8 o; + if (OJPEGReadWord(sp,&m)==0) + return(0); + if (m<=2) + { + if (sp->subsamplingcorrect==0) + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DHT marker in JPEG data"); + return(0); + } + if (sp->subsamplingcorrect!=0) + { + OJPEGReadSkip(sp,m-2); + } + else + { + na=sizeof(uint32)+2+m; + nb=_TIFFmalloc(na); + if (nb==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); + return(0); + } + *(uint32*)nb=na; + nb[sizeof(uint32)]=255; + nb[sizeof(uint32)+1]=JPEG_MARKER_DHT; + nb[sizeof(uint32)+2]=(m>>8); + nb[sizeof(uint32)+3]=(m&255); + if (OJPEGReadBlock(sp,m-2,&nb[sizeof(uint32)+4])==0) + return(0); + o=nb[sizeof(uint32)+4]; + if ((o&240)==0) + { + if (3<o) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DHT marker in JPEG data"); + return(0); + } + if (sp->dctable[o]!=0) + _TIFFfree(sp->dctable[o]); + sp->dctable[o]=nb; + } + else + { + if ((o&240)!=16) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DHT marker in JPEG data"); + return(0); + } + o&=15; + if (3<o) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DHT marker in JPEG data"); + return(0); + } + if (sp->actable[o]!=0) + _TIFFfree(sp->actable[o]); + sp->actable[o]=nb; + } + } + return(1); +} static int -OJPEGSetupDecode(register TIFF *tif) - { static char module[]={"OJPEGSetupDecode"}; - J_COLOR_SPACE jpeg_color_space, /* Color space of JPEG-compressed image */ - out_color_space; /* Color space of decompressed image */ - uint32 segment_width; - int status = 1; /* Assume success by default */ - boolean downsampled_output=FALSE, /* <=> Want JPEG Library's "raw" image? */ - is_JFIF; /* <=> JFIF image? */ - register OJPEGState *sp = OJState(tif); -# define td (&tif->tif_dir) - - /* Verify miscellaneous parameters. This will need work if the TIFF Library - ever supports different depths for different components, or if the JPEG - Library ever supports run-time depth selection. Neither seems imminent. - */ - if (td->td_bitspersample != sp->cinfo.d.data_precision) - { - TIFFError(module,bad_bps,td->td_bitspersample); - status = 0; - }; - - /* The TIFF Version 6.0 specification and IJG JPEG Library accept different - sets of color spaces, so verify that our image belongs to the common subset - and map its photometry code, then initialize to handle subsampling and - optional JPEG Library YCbCr <-> RGB color-space conversion. - */ - switch (td->td_photometric) - { - case PHOTOMETRIC_YCBCR : - - /* ISO IS 10918-1 requires that JPEG subsampling factors be 1-4, but - TIFF Version 6.0 is more restrictive: only 1, 2, and 4 are allowed. - */ - if ( ( td->td_ycbcrsubsampling[0] == 1 - || td->td_ycbcrsubsampling[0] == 2 - || td->td_ycbcrsubsampling[0] == 4 - ) - && ( td->td_ycbcrsubsampling[1] == 1 - || td->td_ycbcrsubsampling[1] == 2 - || td->td_ycbcrsubsampling[1] == 4 - ) - ) - downsampled_output = - ( - (sp->h_sampling = td->td_ycbcrsubsampling[0]) << 3 - | (sp->v_sampling = td->td_ycbcrsubsampling[1]) - ) != 011; - else - { - TIFFError(module,bad_subsampling); - status = 0; - }; - jpeg_color_space = JCS_YCbCr; - if (sp->jpegcolormode == JPEGCOLORMODE_RGB) - { - downsampled_output = FALSE; - out_color_space = JCS_RGB; - break; - }; - goto L2; - case PHOTOMETRIC_MINISBLACK: - jpeg_color_space = JCS_GRAYSCALE; - goto L1; - case PHOTOMETRIC_RGB : - jpeg_color_space = JCS_RGB; - goto L1; - case PHOTOMETRIC_SEPARATED : - jpeg_color_space = JCS_CMYK; - L1: sp->jpegcolormode = JPEGCOLORMODE_RAW; /* No JPEG Lib. conversion */ - L2: out_color_space = jpeg_color_space; - break; - default : - TIFFError(module,bad_photometry,td->td_photometric); - status = 0; - }; - if (status == 0) return 0; /* If TIFF errors, don't bother to continue */ - - /* Set parameters that are same for all strips/tiles. */ - - sp->cinfo.d.src = &sp->src; - sp->src.init_source = std_init_source; - sp->src.fill_input_buffer = std_fill_input_buffer; - sp->src.skip_input_data = std_skip_input_data; - sp->src.resync_to_restart = jpeg_resync_to_restart; - sp->src.term_source = std_term_source; - - /* BOGOSITY ALERT! The Wang Imaging application for Microsoft Windows produces - images containing "JPEGInterchangeFormat[Length]" TIFF - records that resemble JFIF-in-TIFF encapsulations but, in fact, violate the - TIFF Version 6 specification in several ways; nevertheless, we try to handle - them gracefully because there are apparently a lot of them around. The - purported "JFIF" data stream in one of these files vaguely resembles a JPEG - "tables only" data stream, except that there's no trailing EOI marker. The - rest of the JPEG data stream lies in a discontiguous file region, identified - by the 0th Strip offset (which is *also* illegal!), where it begins with an - SOS marker and apparently continues to the end of the file. There is no - trailing EOI marker here, either. - */ - is_JFIF = !sp->is_WANG && TIFFFieldSet(tif,FIELD_JPEGIFOFFSET); +OJPEGReadHeaderInfoSecStreamSof(TIFF* tif, uint8 marker_id) +{ + /* this marker needs to be checked, and part of its data needs to be saved for regeneration later on */ + static const char module[]="OJPEGReadHeaderInfoSecStreamSof"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint16 m; + uint16 n; + uint8 o; + uint16 p; + uint16 q; + if (sp->sof_log!=0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt JPEG data"); + return(0); + } + if (sp->subsamplingcorrect==0) + sp->sof_marker_id=marker_id; + /* Lf: data length */ + if (OJPEGReadWord(sp,&m)==0) + return(0); + if (m<11) + { + if (sp->subsamplingcorrect==0) + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt SOF marker in JPEG data"); + return(0); + } + m-=8; + if (m%3!=0) + { + if (sp->subsamplingcorrect==0) + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt SOF marker in JPEG data"); + return(0); + } + n=m/3; + if (sp->subsamplingcorrect==0) + { + if (n!=sp->samples_per_pixel) + { + TIFFErrorExt(tif->tif_clientdata,module,"JPEG compressed data indicates unexpected number of samples"); + return(0); + } + } + /* P: Sample precision */ + if (OJPEGReadByte(sp,&o)==0) + return(0); + if (o!=8) + { + if (sp->subsamplingcorrect==0) + TIFFErrorExt(tif->tif_clientdata,module,"JPEG compressed data indicates unexpected number of bits per sample"); + return(0); + } + /* Y: Number of lines, X: Number of samples per line */ + if (sp->subsamplingcorrect) + OJPEGReadSkip(sp,4); + else + { + /* TODO: probably best to also add check on allowed upper bound, especially x, may cause buffer overflow otherwise i think */ + /* Y: Number of lines */ + if (OJPEGReadWord(sp,&p)==0) + return(0); + if ((p<sp->image_length) && (p<sp->strile_length_total)) + { + TIFFErrorExt(tif->tif_clientdata,module,"JPEG compressed data indicates unexpected height"); + return(0); + } + sp->sof_y=p; + /* X: Number of samples per line */ + if (OJPEGReadWord(sp,&p)==0) + return(0); + if ((p<sp->image_width) && (p<sp->strile_width)) + { + TIFFErrorExt(tif->tif_clientdata,module,"JPEG compressed data indicates unexpected width"); + return(0); + } + sp->sof_x=p; + } + /* Nf: Number of image components in frame */ + if (OJPEGReadByte(sp,&o)==0) + return(0); + if (o!=n) + { + if (sp->subsamplingcorrect==0) + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt SOF marker in JPEG data"); + return(0); + } + /* per component stuff */ + /* TODO: double-check that flow implies that n cannot be as big as to make us overflow sof_c, sof_hv and sof_tq arrays */ + for (q=0; q<n; q++) + { + /* C: Component identifier */ + if (OJPEGReadByte(sp,&o)==0) + return(0); + if (sp->subsamplingcorrect==0) + sp->sof_c[q]=o; + /* H: Horizontal sampling factor, and V: Vertical sampling factor */ + if (OJPEGReadByte(sp,&o)==0) + return(0); + if (sp->subsamplingcorrect!=0) + { + if (q==0) + { + sp->subsampling_hor=(o>>4); + sp->subsampling_ver=(o&15); + if (((sp->subsampling_hor!=1) && (sp->subsampling_hor!=2) && (sp->subsampling_hor!=4)) || + ((sp->subsampling_ver!=1) && (sp->subsampling_ver!=2) && (sp->subsampling_ver!=4))) + sp->subsampling_force_desubsampling_inside_decompression=1; + } + else + { + if (o!=17) + sp->subsampling_force_desubsampling_inside_decompression=1; + } + } + else + { + sp->sof_hv[q]=o; + if (sp->subsampling_force_desubsampling_inside_decompression==0) + { + if (q==0) + { + if (o!=((sp->subsampling_hor<<4)|sp->subsampling_ver)) + { + TIFFErrorExt(tif->tif_clientdata,module,"JPEG compressed data indicates unexpected subsampling values"); + return(0); + } + } + else + { + if (o!=17) + { + TIFFErrorExt(tif->tif_clientdata,module,"JPEG compressed data indicates unexpected subsampling values"); + return(0); + } + } + } + } + /* Tq: Quantization table destination selector */ + if (OJPEGReadByte(sp,&o)==0) + return(0); + if (sp->subsamplingcorrect==0) + sp->sof_tq[q]=o; + } + if (sp->subsamplingcorrect==0) + sp->sof_log=1; + return(1); +} - /* Initialize decompression parameters that won't be overridden by JPEG Library - defaults set during the "jpeg_read_header()" call, below. - */ - segment_width = td->td_imagewidth; - if (isTiled(tif)) - { - if (sp->is_WANG) /* we don't know how to handle it */ - { - TIFFError(module,"Tiled Wang image not supported"); - return 0; - }; - - /* BOGOSITY ALERT! "TIFFTileRowSize()" seems to work fine for modern JPEG- - in-TIFF encapsulations where the image width--like the - tile width--is a multiple of 8 or 16 pixels. But image widths and - heights are aren't restricted to 8- or 16-bit multiples, and we need - the exact Byte count of decompressed scan lines when we call the JPEG - Library. At least one old file ("zackthecat.tif") in the TIFF Library - test suite has widths and heights slightly less than the tile sizes, and - it apparently used the bogus computation below to determine the number - of Bytes per scan line (was this due to an old, broken version of - "TIFFhowmany()"?). Before we get here, "OJPEGSetupDecode()" verified - that our image uses 8-bit samples, so the following check appears to - return the correct answer in all known cases tested to date. - */ - if (is_JFIF || (segment_width & 7) == 0) - sp->bytesperline = TIFFTileRowSize(tif); /* Normal case */ - else - { - /* Was the file-encoder's segment-width calculation bogus? */ - segment_width = (segment_width/sp->h_sampling + 1) * sp->h_sampling; - sp->bytesperline = segment_width * td->td_samplesperpixel; - } - } - else sp->bytesperline = TIFFVStripSize(tif,1); - - /* BEWARE OF KLUDGE: If we have JPEG Interchange File Format (JFIF) image, - then we want to read "metadata" in the bit-stream's - header and validate it against corresponding information in TIFF records. - But if we have a *really old* JPEG file that's not JFIF, then we simply - assign TIFF-record values to JPEG Library variables without checking. - */ - if (is_JFIF) /* JFIF image */ - { unsigned char *end_of_data; - int subsampling_factors; - register unsigned char *p; - register int i; - - /* WARNING: Although the image file contains a JFIF bit stream, it might - also contain some old TIFF records causing "OJPEGVSetField()" - to have allocated quantization or Huffman decoding tables. But when the - JPEG Library reads and parses the JFIF header below, it reallocate these - tables anew without checking for "dangling" pointers, thereby causing a - memory "leak". We have enough information to potentially deallocate the - old tables here, but unfortunately JPEG Library Version 6B uses a "pool" - allocator for small objects, with no deallocation procedure; instead, it - reclaims a whole pool when an image is closed/destroyed, so well-behaved - TIFF client applications (i.e., those which close their JPEG images as - soon as they're no longer needed) will waste memory for a short time but - recover it eventually. But ill-behaved TIFF clients (i.e., those which - keep many JPEG images open gratuitously) can exhaust memory prematurely. - If the JPEG Library ever implements a deallocation procedure, insert - this clean-up code: - */ -# ifdef someday - if (sp->jpegtablesmode & JPEGTABLESMODE_QUANT) /* free quant. tables */ - { register int i = 0; - - do - { register JQUANT_TBL *q; - - if (q = sp->cinfo.d.quant_tbl_ptrs[i]) - { - jpeg_free_small(&sp->cinfo.comm,q,sizeof *q); - sp->cinfo.d.quant_tbl_ptrs[i] = 0; - } - } - while (++i < NUM_QUANT_TBLS); - }; - if (sp->jpegtablesmode & JPEGTABLESMODE_HUFF) /* free Huffman tables */ - { register int i = 0; - - do - { register JHUFF_TBL *h; - - if (h = sp->cinfo.d.dc_huff_tbl_ptrs[i]) - { - jpeg_free_small(&sp->cinfo.comm,h,sizeof *h); - sp->cinfo.d.dc_huff_tbl_ptrs[i] = 0; - }; - if (h = sp->cinfo.d.ac_huff_tbl_ptrs[i]) - { - jpeg_free_small(&sp->cinfo.comm,h,sizeof *h); - sp->cinfo.d.ac_huff_tbl_ptrs[i] = 0; - } - } - while (++i < NUM_HUFF_TBLS); - }; -# endif /* someday */ - - /* Since we might someday wish to try rewriting "old format" JPEG-in-TIFF - encapsulations in "new format" files, try to synthesize the value of a - modern "JPEGTables" TIFF record by scanning the JPEG data from just past - the "Start of Information" (SOI) marker until something other than a - legitimate "table" marker is found, as defined in ISO IS 10918-1 - Appending B.2.4; namely: - - -- Define Quantization Table (DQT) - -- Define Huffman Table (DHT) - -- Define Arithmetic Coding table (DAC) - -- Define Restart Interval (DRI) - -- Comment (COM) - -- Application data (APPn) - - For convenience, we also accept "Expansion" (EXP) markers, although they - are apparently not a part of normal "table" data. - */ - sp->jpegtables = p = (unsigned char *)sp->src.next_input_byte; - end_of_data = p + sp->src.bytes_in_buffer; - p += 2; - while (p < end_of_data && p[0] == 0xFF) - switch (p[1]) - { - default : goto L; - case 0xC0: /* SOF0 */ - case 0xC1: /* SOF1 */ - case 0xC2: /* SOF2 */ - case 0xC3: /* SOF3 */ - case 0xC4: /* DHT */ - case 0xC5: /* SOF5 */ - case 0xC6: /* SOF6 */ - case 0xC7: /* SOF7 */ - case 0xC9: /* SOF9 */ - case 0xCA: /* SOF10 */ - case 0xCB: /* SOF11 */ - case 0xCC: /* DAC */ - case 0xCD: /* SOF13 */ - case 0xCE: /* SOF14 */ - case 0xCF: /* SOF15 */ - case 0xDB: /* DQT */ - case 0xDD: /* DRI */ - case 0xDF: /* EXP */ - case 0xE0: /* APP0 */ - case 0xE1: /* APP1 */ - case 0xE2: /* APP2 */ - case 0xE3: /* APP3 */ - case 0xE4: /* APP4 */ - case 0xE5: /* APP5 */ - case 0xE6: /* APP6 */ - case 0xE7: /* APP7 */ - case 0xE8: /* APP8 */ - case 0xE9: /* APP9 */ - case 0xEA: /* APP10 */ - case 0xEB: /* APP11 */ - case 0xEC: /* APP12 */ - case 0xED: /* APP13 */ - case 0xEE: /* APP14 */ - case 0xEF: /* APP15 */ - case 0xFE: /* COM */ - p += (p[2] << 8 | p[3]) + 2; - }; - L: if (p - (unsigned char *)sp->jpegtables > 2) /* fake "JPEGTables" */ - { - - /* In case our client application asks, pretend that this image file - contains a modern "JPEGTables" TIFF record by copying to a buffer - the initial part of the JFIF bit-stream that we just scanned, from - the SOI marker through the "metadata" tables, then append an EOI - marker and flag the "JPEGTables" TIFF record as "present". - */ - sp->jpegtables_length = p - (unsigned char*)sp->jpegtables + 2; - p = sp->jpegtables; - if (!(sp->jpegtables = _TIFFmalloc(sp->jpegtables_length))) - { - TIFFError(module,no_jtable_space); - return 0; - }; - _TIFFmemcpy(sp->jpegtables,p,sp->jpegtables_length-2); - p = (unsigned char *)sp->jpegtables + sp->jpegtables_length; - p[-2] = 0xFF; p[-1] = JPEG_EOI; /* Append EOI marker */ - TIFFSetFieldBit(tif,FIELD_JPEGTABLES); - tif->tif_flags |= TIFF_DIRTYDIRECT; - } - else sp->jpegtables = 0; /* Don't simulate "JPEGTables" */ - if ( CALLJPEG(sp,-1,jpeg_read_header(&sp->cinfo.d,TRUE)) - != JPEG_HEADER_OK - ) return 0; - if ( sp->cinfo.d.image_width != segment_width - || sp->cinfo.d.image_height != td->td_imagelength - ) - { - TIFFError(module,"Improper JPEG strip/tile size"); - return 0; - }; - if (sp->cinfo.d.num_components != td->td_samplesperpixel) - { - TIFFError(module,"Improper JPEG component count"); - return 0; - }; - if (sp->cinfo.d.data_precision != td->td_bitspersample) - { - TIFFError(module,"Improper JPEG data precision"); - return 0; - }; - - /* Check that JPEG image components all have the same subsampling factors - declared (or defaulted) in the TIFF file, since TIFF Version 6.0 is more - restrictive than JPEG: Only the 0th component may have horizontal and - vertical subsampling factors other than <1,1>. - */ - subsampling_factors = sp->h_sampling << 3 | sp->v_sampling; - i = 0; - do - { - if ( ( sp->cinfo.d.comp_info[i].h_samp_factor << 3 - | sp->cinfo.d.comp_info[i].v_samp_factor - ) - != subsampling_factors - ) - { - TIFFError(module,"Improper JPEG subsampling factors"); - return 0; - }; - subsampling_factors = 011; /* Required for image components > 0 */ - } - while (++i < sp->cinfo.d.num_components); - } - else /* not JFIF image */ - { int (*save)(j_decompress_ptr cinfo) = sp->cinfo.d.marker->read_markers; - register int i; - - /* We're not assuming that this file's JPEG bit stream has any header - "metadata", so fool the JPEG Library into thinking that we read a - "Start of Input" (SOI) marker and a "Start of Frame" (SOFx) marker, then - force it to read a simulated "Start of Scan" (SOS) marker when we call - "jpeg_read_header()" below. This should cause the JPEG Library to - establish reasonable defaults. - */ - sp->cinfo.d.marker->saw_SOI = /* Pretend we saw SOI marker */ - sp->cinfo.d.marker->saw_SOF = TRUE; /* Pretend we saw SOF marker */ - sp->cinfo.d.marker->read_markers = - sp->is_WANG ? suspend : fake_SOS_marker; - sp->cinfo.d.global_state = DSTATE_INHEADER; - sp->cinfo.d.Se = DCTSIZE2-1; /* Suppress JPEG Library warning */ - sp->cinfo.d.image_width = segment_width; - sp->cinfo.d.image_height = td->td_imagelength; - - /* The following color-space initialization, including the complicated - "switch"-statement below, essentially duplicates the logic used by the - JPEG Library's "jpeg_init_colorspace()" subroutine during compression. - */ - sp->cinfo.d.num_components = td->td_samplesperpixel; - sp->cinfo.d.comp_info = (jpeg_component_info *) - (*sp->cinfo.d.mem->alloc_small) - ( &sp->cinfo.comm - , JPOOL_IMAGE - , sp->cinfo.d.num_components * sizeof *sp->cinfo.d.comp_info - ); - i = 0; - do - { - sp->cinfo.d.comp_info[i].component_index = i; - sp->cinfo.d.comp_info[i].component_needed = TRUE; - sp->cinfo.d.cur_comp_info[i] = &sp->cinfo.d.comp_info[i]; - } - while (++i < sp->cinfo.d.num_components); - switch (jpeg_color_space) - { - case JCS_UNKNOWN : - i = 0; - do - { - sp->cinfo.d.comp_info[i].component_id = i; - sp->cinfo.d.comp_info[i].h_samp_factor = - sp->cinfo.d.comp_info[i].v_samp_factor = 1; - } - while (++i < sp->cinfo.d.num_components); - break; - case JCS_GRAYSCALE: - sp->cinfo.d.comp_info[0].component_id = - sp->cinfo.d.comp_info[0].h_samp_factor = - sp->cinfo.d.comp_info[0].v_samp_factor = 1; - break; - case JCS_RGB : - sp->cinfo.d.comp_info[0].component_id = 'R'; - sp->cinfo.d.comp_info[1].component_id = 'G'; - sp->cinfo.d.comp_info[2].component_id = 'B'; - i = 0; - do sp->cinfo.d.comp_info[i].h_samp_factor = - sp->cinfo.d.comp_info[i].v_samp_factor = 1; - while (++i < sp->cinfo.d.num_components); - break; - case JCS_CMYK : - sp->cinfo.d.comp_info[0].component_id = 'C'; - sp->cinfo.d.comp_info[1].component_id = 'M'; - sp->cinfo.d.comp_info[2].component_id = 'Y'; - sp->cinfo.d.comp_info[3].component_id = 'K'; - i = 0; - do sp->cinfo.d.comp_info[i].h_samp_factor = - sp->cinfo.d.comp_info[i].v_samp_factor = 1; - while (++i < sp->cinfo.d.num_components); - break; - case JCS_YCbCr : - i = 0; - do - { - sp->cinfo.d.comp_info[i].component_id = i+1; - sp->cinfo.d.comp_info[i].h_samp_factor = - sp->cinfo.d.comp_info[i].v_samp_factor = 1; - sp->cinfo.d.comp_info[i].quant_tbl_no = - sp->cinfo.d.comp_info[i].dc_tbl_no = - sp->cinfo.d.comp_info[i].ac_tbl_no = i > 0; - } - while (++i < sp->cinfo.d.num_components); - sp->cinfo.d.comp_info[0].h_samp_factor = sp->h_sampling; - sp->cinfo.d.comp_info[0].v_samp_factor = sp->v_sampling; - }; - sp->cinfo.d.comps_in_scan = td->td_planarconfig == PLANARCONFIG_CONTIG - ? sp->cinfo.d.num_components - : 1; - i = CALLJPEG(sp,-1,jpeg_read_header(&sp->cinfo.d,!sp->is_WANG)); - sp->cinfo.d.marker->read_markers = save; /* Restore input method */ - if (sp->is_WANG) /* produced by Wang Imaging on Microsoft Windows */ - { - if (i != JPEG_SUSPENDED) return 0; - - /* BOGOSITY ALERT! Files prooduced by the Wang Imaging application for - Microsoft Windows are a special--and, technically - illegal--case. A JPEG SOS marker and rest of the data stream should - be located at the end of the file, in a position identified by the - 0th Strip offset. - */ - i = td->td_nstrips - 1; - sp->src.next_input_byte = tif->tif_base + td->td_stripoffset[0]; - sp->src.bytes_in_buffer = td->td_stripoffset[i] - - td->td_stripoffset[0] + td->td_stripbytecount[i]; - i = CALLJPEG(sp,-1,jpeg_read_header(&sp->cinfo.d,TRUE)); - }; - if (i != JPEG_HEADER_OK) return 0; - }; - - /* Some of our initialization must wait until the JPEG Library is initialized - above, in order to override its defaults. - */ - if ( (sp->cinfo.d.raw_data_out = downsampled_output) - && !alloc_downsampled_buffers(tif,sp->cinfo.d.comp_info, - sp->cinfo.d.num_components) - ) return 0; - sp->cinfo.d.jpeg_color_space = jpeg_color_space; - sp->cinfo.d.out_color_space = out_color_space; - sp->cinfo.d.dither_mode = JDITHER_NONE; /* Reduce image "noise" */ - sp->cinfo.d.two_pass_quantize = FALSE; - - /* If the image consists of separate, discontiguous TIFF "samples" (= color - planes, hopefully = JPEG "scans"), then we must use the JPEG Library's - "buffered image" mode to decompress the entire image into temporary buffers, - because the JPEG Library must parse the entire JPEG bit-stream in order to - be satsified that it has a complete set of color components for each pixel, - but the TIFF Library must allow our client to extract 1 component at a time. - Initializing the JPEG Library's "buffered image" mode is tricky: First, we - start its decompressor, then we tell the decompressor to "consume" (i.e., - buffer) the entire bit-stream. - - WARNING: Disabling "fancy" up-sampling seems to slightly reduce "noise" for - certain old Wang Imaging files, but it absolutely *must* be - enabled if the image has separate color planes, since in that case, the JPEG - Library doesn't use an "sp->cinfo.d.cconvert" structure (so de-referencing - this pointer below will cause a fatal crash) but writing our own code to up- - sample separate color planes is too much work for right now. Maybe someday? - */ - sp->cinfo.d.do_fancy_upsampling = /* Always let this default (to TRUE)? */ - sp->cinfo.d.buffered_image = td->td_planarconfig == PLANARCONFIG_SEPARATE; - if (!CALLJPEG(sp,0,jpeg_start_decompress(&sp->cinfo.d))) return 0; - if (sp->cinfo.d.buffered_image) /* separate color planes */ - { - if (sp->cinfo.d.raw_data_out) - tif->tif_decoderow = tif->tif_decodestrip = tif->tif_decodetile = - OJPEGDecodeRawSeparate; - else - { - tif->tif_decoderow = tif->tif_decodestrip = tif->tif_decodetile = - OJPEGDecode; - - /* In JPEG Library Version 6B, color-space conversion isn't implemented - for separate color planes, so we must do it ourself if our TIFF - client doesn't want to: - */ - sp->cinfo.d.cconvert->color_convert = - sp->cinfo.d.jpeg_color_space == sp->cinfo.d.out_color_space - ? null_convert : ycc_rgb_convert; - }; - L3: switch (CALLJPEG(sp,0,jpeg_consume_input(&sp->cinfo.d))) - { - default : goto L3; - - /* If no JPEG "End of Information" (EOI) marker is found when bit- - stream parsing ends, check whether we have enough data to proceed - before reporting an error. - */ - case JPEG_SUSPENDED : if ( sp->cinfo.d.input_scan_number - *sp->cinfo.d.image_height - + sp->cinfo.d.input_iMCU_row - *sp->cinfo.d.max_v_samp_factor -# ifdef D_LOSSLESS_SUPPORTED - *sp->cinfo.d.data_units_in_MCU - *sp->cinfo.d.min_codec_data_unit -# else - *sp->cinfo.d.blocks_in_MCU - *DCTSIZE -# endif - < td->td_samplesperpixel - *sp->cinfo.d.image_height - ) - { - TIFFError(tif->tif_name, - "Premature end of JPEG bit-stream"); - return 0; - } - case JPEG_REACHED_EOI: ; - } - } - else /* pixel-interleaved color planes */ - tif->tif_decoderow = tif->tif_decodestrip = tif->tif_decodetile = - downsampled_output ? OJPEGDecodeRawContig : OJPEGDecode; - return 1; -# undef td - } +static int +OJPEGReadHeaderInfoSecStreamSos(TIFF* tif) +{ + /* this marker needs to be checked, and part of its data needs to be saved for regeneration later on */ + static const char module[]="OJPEGReadHeaderInfoSecStreamSos"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint16 m; + uint8 n; + uint8 o; + assert(sp->subsamplingcorrect==0); + if (sp->sof_log==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt SOS marker in JPEG data"); + return(0); + } + /* Ls */ + if (OJPEGReadWord(sp,&m)==0) + return(0); + if (m!=6+sp->samples_per_pixel_per_plane*2) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt SOS marker in JPEG data"); + return(0); + } + /* Ns */ + if (OJPEGReadByte(sp,&n)==0) + return(0); + if (n!=sp->samples_per_pixel_per_plane) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt SOS marker in JPEG data"); + return(0); + } + /* Cs, Td, and Ta */ + for (o=0; o<sp->samples_per_pixel_per_plane; o++) + { + /* Cs */ + if (OJPEGReadByte(sp,&n)==0) + return(0); + sp->sos_cs[sp->plane_sample_offset+o]=n; + /* Td and Ta */ + if (OJPEGReadByte(sp,&n)==0) + return(0); + sp->sos_tda[sp->plane_sample_offset+o]=n; + } + /* skip Ss, Se, Ah, en Al -> no check, as per Tom Lane recommendation, as per LibJpeg source */ + OJPEGReadSkip(sp,3); + return(1); +} static int -OJPEGPreDecode(register TIFF *tif,tsample_t s) - { register OJPEGState *sp = OJState(tif); -# define td (&tif->tif_dir) - - /* If we are about to read the first row of an image plane (hopefully, these - are coincident with JPEG "scans"!), reset the JPEG Library's decompressor - appropriately. Otherwise, let the decompressor run "as is" and return a - "success" status without further ado. - */ - if ( (isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip) - % td->td_stripsperimage - == 0 - ) - { - if ( sp->cinfo.d.buffered_image - && !CALLJPEG(sp,0,jpeg_start_output(&sp->cinfo.d,s+1)) - ) return 0; - sp->cinfo.d.output_scanline = 0; - - /* Mark subsampling buffers "empty". */ - -# ifdef D_LOSSLESS_SUPPORTED - sp->scancount = sp->cinfo.d.min_codec_data_unit; -# else - sp->scancount = DCTSIZE; -# endif - }; - return 1; -# undef td - } - -/*ARGSUSED*/ static void -OJPEGPostDecode(register TIFF *tif,tidata_t buf,tsize_t cc) - { register OJPEGState *sp = OJState(tif); -# define td (&tif->tif_dir) - - /* The JPEG Library decompressor has reached the end of a strip/tile. If this - is the end of a TIFF image "sample" (= JPEG "scan") in a file with separate - components (color planes), then end the "scan". If it ends the image's last - sample/scan, then also stop the JPEG Library's decompressor. - */ - if (sp->cinfo.d.output_scanline >= sp->cinfo.d.output_height) - { - if (sp->cinfo.d.buffered_image) - CALLJPEG(sp,-1,jpeg_finish_output(&sp->cinfo.d)); /* End JPEG scan */ - if ( (isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip) - >= td->td_nstrips-1 - ) CALLJPEG(sp,0,jpeg_finish_decompress(&sp->cinfo.d)); - } -# undef td - } +OJPEGReadHeaderInfoSecTablesQTable(TIFF* tif) +{ + static const char module[]="OJPEGReadHeaderInfoSecTablesQTable"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8 m; + uint8 n; + uint32 oa; + uint8* ob; + uint32 p; + if (sp->qtable_offset[0]==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Missing JPEG tables"); + return(0); + } + sp->in_buffer_file_pos_log=0; + for (m=0; m<sp->samples_per_pixel; m++) + { + if ((sp->qtable_offset[m]!=0) && ((m==0) || (sp->qtable_offset[m]!=sp->qtable_offset[m-1]))) + { + for (n=0; n<m-1; n++) + { + if (sp->qtable_offset[m]==sp->qtable_offset[n]) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt JpegQTables tag value"); + return(0); + } + } + oa=sizeof(uint32)+69; + ob=_TIFFmalloc(oa); + if (ob==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); + return(0); + } + *(uint32*)ob=oa; + ob[sizeof(uint32)]=255; + ob[sizeof(uint32)+1]=JPEG_MARKER_DQT; + ob[sizeof(uint32)+2]=0; + ob[sizeof(uint32)+3]=67; + ob[sizeof(uint32)+4]=m; + TIFFSeekFile(tif,sp->qtable_offset[m],SEEK_SET); + p=TIFFReadFile(tif,&ob[sizeof(uint32)+5],64); + if (p!=64) + return(0); + sp->qtable[m]=ob; + sp->sof_tq[m]=m; + } + else + sp->sof_tq[m]=sp->sof_tq[m-1]; + } + return(1); +} static int -OJPEGVSetField(register TIFF *tif,ttag_t tag,va_list ap) +OJPEGReadHeaderInfoSecTablesDcTable(TIFF* tif) { - uint32 v32; - register OJPEGState *sp = OJState(tif); -# define td (&tif->tif_dir) - toff_t tiffoff=0; - uint32 bufoff=0; - uint32 code_count=0; - int i2=0; - int k2=0; - - switch (tag) - { - default : return - (*sp->vsetparent)(tif,tag,ap); - - /* BEWARE OF KLUDGE: Some old-format JPEG-in-TIFF files, including those - produced by the Wang Imaging application for Micro- - soft Windows, illegally omit a "ReferenceBlackWhite" TIFF tag, even - though the TIFF specification's default is intended for the RGB color - space and is inappropriate for the YCbCr color space ordinarily used for - JPEG images. Since many TIFF client applications request the value of - this tag immediately after a TIFF image directory is parsed, and before - any other code in this module receives control, we are forced to fix - this problem very early in image-file processing. Fortunately, legal - TIFF files are supposed to store their tags in numeric order, so a - mandatory "PhotometricInterpretation" tag should always appear before - an optional "ReferenceBlackWhite" tag. Hence, we slyly peek ahead when - we discover the desired photometry, by installing modified black and - white reference levels. - */ - case TIFFTAG_PHOTOMETRIC : - if ( (v32 = (*sp->vsetparent)(tif,tag,ap)) - && td->td_photometric == PHOTOMETRIC_YCBCR - ) - { - float *ref; - if (!TIFFGetField(tif, TIFFTAG_REFERENCEBLACKWHITE, &ref)) { - float refbw[6]; - long top = 1L << td->td_bitspersample; - refbw[0] = 0; - refbw[1] = (float)(top-1L); - refbw[2] = (float)(top>>1); - refbw[3] = refbw[1]; - refbw[4] = refbw[2]; - refbw[5] = refbw[1]; - TIFFSetField(tif, TIFFTAG_REFERENCEBLACKWHITE, refbw); + static const char module[]="OJPEGReadHeaderInfoSecTablesDcTable"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8 m; + uint8 n; + uint8 o[16]; + uint32 p; + uint32 q; + uint32 ra; + uint8* rb; + if (sp->dctable_offset[0]==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Missing JPEG tables"); + return(0); + } + sp->in_buffer_file_pos_log=0; + for (m=0; m<sp->samples_per_pixel; m++) + { + if ((sp->dctable_offset[m]!=0) && ((m==0) || (sp->dctable_offset[m]!=sp->dctable_offset[m-1]))) + { + for (n=0; n<m-1; n++) + { + if (sp->dctable_offset[m]==sp->dctable_offset[n]) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt JpegDcTables tag value"); + return(0); + } + } + TIFFSeekFile(tif,sp->dctable_offset[m],SEEK_SET); + p=TIFFReadFile(tif,o,16); + if (p!=16) + return(0); + q=0; + for (n=0; n<16; n++) + q+=o[n]; + ra=sizeof(uint32)+21+q; + rb=_TIFFmalloc(ra); + if (rb==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); + return(0); + } + *(uint32*)rb=ra; + rb[sizeof(uint32)]=255; + rb[sizeof(uint32)+1]=JPEG_MARKER_DHT; + rb[sizeof(uint32)+2]=((19+q)>>8); + rb[sizeof(uint32)+3]=((19+q)&255); + rb[sizeof(uint32)+4]=m; + for (n=0; n<16; n++) + rb[sizeof(uint32)+5+n]=o[n]; + p=TIFFReadFile(tif,&(rb[sizeof(uint32)+21]),q); + if (p!=q) + return(0); + sp->dctable[m]=rb; + sp->sos_tda[m]=(m<<4); } - } - return v32; - - /* BEWARE OF KLUDGE: According to Charles Auer <Bumble731@msn.com>, if our - input is a multi-image (multi-directory) JPEG-in-TIFF - file is produced by the Wang Imaging application on Microsoft Windows, - for some reason the first directory excludes the vendor-specific "WANG - PageControl" tag (32934) that we check below, so the only other way to - identify these directories is apparently to look for a software- - identification tag with the substring, "Wang Labs". Single-image files - can apparently pass both tests, which causes no harm here, but what a - mess this is! - */ - case TIFFTAG_SOFTWARE : - { - char *software; - - v32 = (*sp->vsetparent)(tif,tag,ap); - if( TIFFGetField( tif, TIFFTAG_SOFTWARE, &software ) - && strstr( software, "Wang Labs" ) ) - sp->is_WANG = 1; - return v32; - } - - case TIFFTAG_JPEGPROC : - case TIFFTAG_JPEGIFOFFSET : - case TIFFTAG_JPEGIFBYTECOUNT : - case TIFFTAG_JPEGRESTARTINTERVAL : - case TIFFTAG_JPEGLOSSLESSPREDICTORS: - case TIFFTAG_JPEGPOINTTRANSFORM : - case TIFFTAG_JPEGQTABLES : - case TIFFTAG_JPEGDCTABLES : - case TIFFTAG_JPEGACTABLES : - case TIFFTAG_WANG_PAGECONTROL : - case TIFFTAG_JPEGCOLORMODE : ; - }; - v32 = va_arg(ap,uint32); /* No. of values in this TIFF record */ - - /* This switch statement is added for OJPEGVSetField */ - if(v32 !=0){ - switch(tag){ - case TIFFTAG_JPEGPROC: - sp->jpegproc=v32; - break; - case TIFFTAG_JPEGIFOFFSET: - sp->jpegifoffset=v32; - break; - case TIFFTAG_JPEGIFBYTECOUNT: - sp->jpegifbytecount=v32; - break; - case TIFFTAG_JPEGRESTARTINTERVAL: - sp->jpegrestartinterval=v32; - break; - case TIFFTAG_JPEGLOSSLESSPREDICTORS: - sp->jpeglosslesspredictors_length=v32; - break; - case TIFFTAG_JPEGPOINTTRANSFORM: - sp->jpegpointtransform_length=v32; - break; - case TIFFTAG_JPEGQTABLES: - sp->jpegqtables_length=v32; - break; - case TIFFTAG_JPEGACTABLES: - sp->jpegactables_length=v32; - break; - case TIFFTAG_JPEGDCTABLES: - sp->jpegdctables_length=v32; - break; - default: - break; - } - } - - /* BEWARE: The following actions apply only if we are reading a "source" TIFF - image to be decompressed for a client application program. If we - ever enhance this file's CODEC to write "destination" JPEG-in-TIFF images, - we'll need an "if"- and another "switch"-statement below, because we'll - probably want to store these records' values in some different places. Most - of these need not be parsed here in order to decode JPEG bit stream, so we - set boolean flags to note that they have been seen, but we otherwise ignore - them. - */ - switch (tag) - { JHUFF_TBL **h; - - /* Validate the JPEG-process code. */ - - case TIFFTAG_JPEGPROC : - switch (v32) - { - default : TIFFError(tif->tif_name, - "Unknown JPEG process"); - return 0; -# ifdef C_LOSSLESS_SUPPORTED - - /* Image uses (lossy) baseline sequential coding. */ - - case JPEGPROC_BASELINE: sp->cinfo.d.process = JPROC_SEQUENTIAL; - sp->cinfo.d.data_unit = DCTSIZE; - break; - - /* Image uses (lossless) Huffman coding. */ - - case JPEGPROC_LOSSLESS: sp->cinfo.d.process = JPROC_LOSSLESS; - sp->cinfo.d.data_unit = 1; -# else /* not C_LOSSLESS_SUPPORTED */ - case JPEGPROC_LOSSLESS: TIFFError(JPEGLib_name, - "Does not support lossless Huffman coding"); - return 0; - case JPEGPROC_BASELINE: ; -# endif /* C_LOSSLESS_SUPPORTED */ - }; - break; - - /* The TIFF Version 6.0 specification says that if the value of a TIFF - "JPEGInterchangeFormat" record is 0, then we are to behave as if this - record were absent; i.e., the data does *not* represent a JPEG Inter- - change Format File (JFIF), so don't even set the boolean "I've been - here" flag below. Otherwise, the field's value represents the file - offset of the JPEG SOI marker. - */ - case TIFFTAG_JPEGIFOFFSET : - if (v32) - { - sp->src.next_input_byte = tif->tif_base + v32; - break; - }; - return 1; - case TIFFTAG_JPEGIFBYTECOUNT : - sp->src.bytes_in_buffer = v32; - break; - - /* The TIFF Version 6.0 specification says that if the JPEG "Restart" - marker interval is 0, then the data has no "Restart" markers; i.e., we - must behave as if this TIFF record were absent. So, don't even set the - boolean "I've been here" flag below. - */ - /* - * Instead, set the field bit so TIFFGetField can get whether or not - * it was set. - */ - case TIFFTAG_JPEGRESTARTINTERVAL : - if (v32) - sp->cinfo.d.restart_interval = v32; - break; - /* The TIFF Version 6.0 specification says that this tag is supposed to be - a vector containing a value for each image component, but for lossless - Huffman coding (the only JPEG process defined by the specification for - which this tag should be needed), ISO IS 10918-1 uses only a single - value, equivalent to the "Ss" field in a JPEG bit-stream's "Start of - Scan" (SOS) marker. So, we extract the first vector element and ignore - the rest. (I hope this is correct!) - */ - case TIFFTAG_JPEGLOSSLESSPREDICTORS: - if (v32) - { - sp->cinfo.d.Ss = *va_arg(ap,uint16 *); - sp->jpeglosslesspredictors = - _TIFFmalloc(sp->jpeglosslesspredictors_length - * sizeof(uint16)); - if(sp->jpeglosslesspredictors==NULL){return(0);} - for(i2=0;i2<sp->jpeglosslesspredictors_length;i2++){ - ((uint16*)sp->jpeglosslesspredictors)[i2] = - ((uint16*)sp->cinfo.d.Ss)[i2]; - } - sp->jpeglosslesspredictors_length*=sizeof(uint16); - break; - }; - return v32; - - /* The TIFF Version 6.0 specification says that this tag is supposed to be - a vector containing a value for each image component, but for lossless - Huffman coding (the only JPEG process defined by the specification for - which this tag should be needed), ISO IS 10918-1 uses only a single - value, equivalent to the "Al" field in a JPEG bit-stream's "Start of - Scan" (SOS) marker. So, we extract the first vector element and ignore - the rest. (I hope this is correct!) - */ - case TIFFTAG_JPEGPOINTTRANSFORM : - if (v32) - { - sp->cinfo.d.Al = *va_arg(ap,uint16 *); - sp->jpegpointtransform = - _TIFFmalloc(sp->jpegpointtransform_length*sizeof(uint16)); - if(sp->jpegpointtransform==NULL){return(0);} - for(i2=0;i2<sp->jpegpointtransform_length;i2++) { - ((uint16*)sp->jpegpointtransform)[i2] = - ((uint16*)sp->cinfo.d.Al)[i2]; - } - sp->jpegpointtransform_length*=sizeof(uint16); - break; - } - return v32; - - /* We have a vector of offsets to quantization tables, so load 'em! */ - - case TIFFTAG_JPEGQTABLES : - if (v32) - { uint32 *v; - int i; - if (v32 > NUM_QUANT_TBLS) - { - TIFFError(tif->tif_name,"Too many quantization tables"); - return 0; - }; - i = 0; - v = va_arg(ap,uint32 *); - sp->jpegqtables=_TIFFmalloc(64*sp->jpegqtables_length); - if(sp->jpegqtables==NULL){return(0);} - tiffoff = TIFFSeekFile(tif, 0, SEEK_CUR); - bufoff=0; - for(i2=0;i2<sp->jpegqtables_length;i2++){ - TIFFSeekFile(tif, v[i2], SEEK_SET); - TIFFReadFile(tif, &(((unsigned char*)(sp->jpegqtables))[bufoff]), - 64); - bufoff+=64; - } - sp->jpegqtables_length=bufoff; - TIFFSeekFile(tif, tiffoff, SEEK_SET); - - do /* read quantization table */ - { register UINT8 *from = tif->tif_base + *v++; - register UINT16 *to; - register int j = DCTSIZE2; - - if (!( sp->cinfo.d.quant_tbl_ptrs[i] - = CALLJPEG(sp,0,jpeg_alloc_quant_table(&sp->cinfo.comm)) - ) - ) - { - TIFFError(JPEGLib_name,"No space for quantization table"); - return 0; - }; - to = sp->cinfo.d.quant_tbl_ptrs[i]->quantval; - do *to++ = *from++; while (--j > 0); - } - while (++i < v32); - sp->jpegtablesmode |= JPEGTABLESMODE_QUANT; - }; - break; - - /* We have a vector of offsets to DC Huffman tables, so load 'em! */ - - case TIFFTAG_JPEGDCTABLES : - h = sp->cinfo.d.dc_huff_tbl_ptrs; - goto L; - - /* We have a vector of offsets to AC Huffman tables, so load 'em! */ - - case TIFFTAG_JPEGACTABLES : - h = sp->cinfo.d.ac_huff_tbl_ptrs; - L: if (v32) - { uint32 *v; - int i; - if (v32 > NUM_HUFF_TBLS) - { - TIFFError(tif->tif_name,"Too many Huffman tables"); - return 0; - }; - v = va_arg(ap,uint32 *); - if(tag == TIFFTAG_JPEGDCTABLES) { - sp->jpegdctables=_TIFFmalloc(272*sp->jpegdctables_length); - if(sp->jpegdctables==NULL){return(0);} - tiffoff = TIFFSeekFile(tif, 0, SEEK_CUR); - bufoff=0; - code_count=0; - for(i2=0;i2<sp->jpegdctables_length;i2++){ - TIFFSeekFile(tif, v[i2], SEEK_SET); - TIFFReadFile(tif, - &(((unsigned char*)(sp->jpegdctables))[bufoff]), - 16); - code_count=0; - for(k2=0;k2<16;k2++){ - code_count+=((unsigned char*)(sp->jpegdctables))[k2+bufoff]; - } - TIFFReadFile(tif, - &(((unsigned char*)(sp->jpegdctables))[bufoff+16]), - code_count); - bufoff+=16; - bufoff+=code_count; - } - sp->jpegdctables_length=bufoff; - TIFFSeekFile(tif, tiffoff, SEEK_SET); - } - if(tag==TIFFTAG_JPEGACTABLES){ - sp->jpegactables=_TIFFmalloc(272*sp->jpegactables_length); - if(sp->jpegactables==NULL){return(0);} - tiffoff = TIFFSeekFile(tif, 0, SEEK_CUR); - bufoff=0; - code_count=0; - for(i2=0;i2<sp->jpegactables_length;i2++){ - TIFFSeekFile(tif, v[i2], SEEK_SET); - TIFFReadFile(tif, &(((unsigned char*)(sp->jpegactables))[bufoff]), 16); - code_count=0; - for(k2=0;k2<16;k2++){ - code_count+=((unsigned char*)(sp->jpegactables))[k2+bufoff]; - } - TIFFReadFile(tif, &(((unsigned char*)(sp->jpegactables))[bufoff+16]), code_count); - bufoff+=16; - bufoff+=code_count; - } - sp->jpegactables_length=bufoff; - TIFFSeekFile(tif, tiffoff, SEEK_SET); - } - i = 0; - do /* copy each Huffman table */ - { int size = 0; - register UINT8 *from = tif->tif_base + *v++, *to; - register int j = sizeof (*h)->bits; - - /* WARNING: This code relies on the fact that an image file not - "memory mapped" was read entirely into a single - buffer by "TIFFInitOJPEG()", so we can do a fast memory-to- - memory copy here. Each table consists of 16 Bytes, which are - suffixed to a 0 Byte when copied, followed by a variable - number of Bytes whose length is the sum of the first 16. - */ - if (!( *h - = CALLJPEG(sp,0,jpeg_alloc_huff_table(&sp->cinfo.comm)) - ) - ) - { - TIFFError(JPEGLib_name,"No space for Huffman table"); - return 0; - }; - to = (*h++)->bits; - *to++ = 0; - while (--j > 0) size += *to++ = *from++; /* Copy 16 Bytes */ - if (size > sizeof (*h)->huffval/sizeof *(*h)->huffval) - { - TIFFError(tif->tif_name,"Huffman table too big"); - return 0; - }; - if ((j = size) > 0) do *to++ = *from++; while (--j > 0); - while (++size <= sizeof (*h)->huffval/sizeof *(*h)->huffval) - *to++ = 0; /* Zero the rest of the table for cleanliness */ - } - while (++i < v32); - sp->jpegtablesmode |= JPEGTABLESMODE_HUFF; - }; - break; - - /* The following vendor-specific TIFF tag occurs in (highly illegal) files - produced by the Wang Imaging application for Microsoft Windows. These - can apparently have several "pages", in which case this tag specifies - the offset of a "page control" structure, which we don't currently know - how to handle. 0 indicates a 1-page image with no "page control", which - we make a feeble effort to handle. - */ - case TIFFTAG_WANG_PAGECONTROL : - if (v32 == 0) v32 = -1; - sp->is_WANG = v32; - tag = TIFFTAG_JPEGPROC+FIELD_WANG_PAGECONTROL-FIELD_JPEGPROC; - break; - - /* This pseudo tag indicates whether our caller is expected to do YCbCr <-> - RGB color-space conversion (JPEGCOLORMODE_RAW <=> 0) or whether we must - ask the JPEG Library to do it (JPEGCOLORMODE_RGB <=> 1). - */ - case TIFFTAG_JPEGCOLORMODE : - sp->jpegcolormode = v32; - - /* Mark the image to indicate whether returned data is up-sampled, so - that "TIFF{Strip,Tile}Size()" reflect the true amount of data present. - */ - v32 = tif->tif_flags; /* Save flags temporarily */ - tif->tif_flags &= ~TIFF_UPSAMPLED; - if ( td->td_photometric == PHOTOMETRIC_YCBCR - && (td->td_ycbcrsubsampling[0]<<3 | td->td_ycbcrsubsampling[1]) - != 011 - && sp->jpegcolormode == JPEGCOLORMODE_RGB - ) tif->tif_flags |= TIFF_UPSAMPLED; - - /* If the up-sampling state changed, re-calculate tile size. */ - - if ((tif->tif_flags ^ v32) & TIFF_UPSAMPLED) - { - tif->tif_tilesize = isTiled(tif) ? TIFFTileSize(tif) : (tsize_t) -1; - tif->tif_flags |= TIFF_DIRTYDIRECT; - }; - return 1; - }; - TIFFSetFieldBit(tif,tag-TIFFTAG_JPEGPROC+FIELD_JPEGPROC); - return 1; -# undef td - } + else + sp->sos_tda[m]=sp->sos_tda[m-1]; + } + return(1); +} static int -OJPEGVGetField(register TIFF *tif,ttag_t tag,va_list ap) - { register OJPEGState *sp = OJState(tif); - - switch (tag) - { - - /* If this file has managed to synthesize a set of consolidated "metadata" - tables for the current (post-TIFF Version 6.0 specification) JPEG-in- - TIFF encapsulation strategy, then tell our caller about them; otherwise, - keep mum. - */ - case TIFFTAG_JPEGTABLES : - if (sp->jpegtables_length) /* we have "new"-style JPEG tables */ - { - *va_arg(ap,uint32 *) = sp->jpegtables_length; - *va_arg(ap,char **) = sp->jpegtables; - return 1; - }; - - /* This pseudo tag indicates whether our caller is expected to do YCbCr <-> - RGB color-space conversion (JPEGCOLORMODE_RAW <=> 0) or whether we must - ask the JPEG Library to do it (JPEGCOLORMODE_RGB <=> 1). - */ - case TIFFTAG_JPEGCOLORMODE : - *va_arg(ap,uint32 *) = sp->jpegcolormode; - return 1; - - /* The following tags are defined by the TIFF Version 6.0 specification - and are obsolete. If our caller asks for information about them, do not - return anything, even if we parsed them in an old-format "source" image. - */ - case TIFFTAG_JPEGPROC : - *va_arg(ap, uint16*)=sp->jpegproc; - return(1); - break; - case TIFFTAG_JPEGIFOFFSET : - *va_arg(ap, uint32*)=sp->jpegifoffset; - return(1); - break; - case TIFFTAG_JPEGIFBYTECOUNT : - *va_arg(ap, uint32*)=sp->jpegifbytecount; - return(1); - break; - case TIFFTAG_JPEGRESTARTINTERVAL : - *va_arg(ap, uint32*)=sp->jpegrestartinterval; - return(1); - break; - case TIFFTAG_JPEGLOSSLESSPREDICTORS: - *va_arg(ap, uint32*)=sp->jpeglosslesspredictors_length; - *va_arg(ap, void**)=sp->jpeglosslesspredictors; - return(1); - break; - case TIFFTAG_JPEGPOINTTRANSFORM : - *va_arg(ap, uint32*)=sp->jpegpointtransform_length; - *va_arg(ap, void**)=sp->jpegpointtransform; - return(1); - break; - case TIFFTAG_JPEGQTABLES : - *va_arg(ap, uint32*)=sp->jpegqtables_length; - *va_arg(ap, void**)=sp->jpegqtables; - return(1); - break; - case TIFFTAG_JPEGDCTABLES : - *va_arg(ap, uint32*)=sp->jpegdctables_length; - *va_arg(ap, void**)=sp->jpegdctables; - return(1); - break; - case TIFFTAG_JPEGACTABLES : - *va_arg(ap, uint32*)=sp->jpegactables_length; - *va_arg(ap, void**)=sp->jpegactables; - return(1); - break; - }; - return (*sp->vgetparent)(tif,tag,ap); - } +OJPEGReadHeaderInfoSecTablesAcTable(TIFF* tif) +{ + static const char module[]="OJPEGReadHeaderInfoSecTablesAcTable"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8 m; + uint8 n; + uint8 o[16]; + uint32 p; + uint32 q; + uint32 ra; + uint8* rb; + if (sp->actable_offset[0]==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Missing JPEG tables"); + return(0); + } + sp->in_buffer_file_pos_log=0; + for (m=0; m<sp->samples_per_pixel; m++) + { + if ((sp->actable_offset[m]!=0) && ((m==0) || (sp->actable_offset[m]!=sp->actable_offset[m-1]))) + { + for (n=0; n<m-1; n++) + { + if (sp->actable_offset[m]==sp->actable_offset[n]) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt JpegAcTables tag value"); + return(0); + } + } + TIFFSeekFile(tif,sp->actable_offset[m],SEEK_SET); + p=TIFFReadFile(tif,o,16); + if (p!=16) + return(0); + q=0; + for (n=0; n<16; n++) + q+=o[n]; + ra=sizeof(uint32)+21+q; + rb=_TIFFmalloc(ra); + if (rb==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); + return(0); + } + *(uint32*)rb=ra; + rb[sizeof(uint32)]=255; + rb[sizeof(uint32)+1]=JPEG_MARKER_DHT; + rb[sizeof(uint32)+2]=((19+q)>>8); + rb[sizeof(uint32)+3]=((19+q)&255); + rb[sizeof(uint32)+4]=(16|m); + for (n=0; n<16; n++) + rb[sizeof(uint32)+5+n]=o[n]; + p=TIFFReadFile(tif,&(rb[sizeof(uint32)+21]),q); + if (p!=q) + return(0); + sp->actable[m]=rb; + sp->sos_tda[m]=(sp->sos_tda[m]|m); + } + else + sp->sos_tda[m]=(sp->sos_tda[m]|(sp->sos_tda[m-1]&15)); + } + return(1); +} + +static int +OJPEGReadBufferFill(OJPEGState* sp) +{ + uint16 m; + tsize_t n; + /* TODO: double-check: when subsamplingcorrect is set, no call to TIFFErrorExt or TIFFWarningExt should be made + * in any other case, seek or read errors should be passed through */ + do + { + if (sp->in_buffer_file_togo!=0) + { + if (sp->in_buffer_file_pos_log==0) + { + TIFFSeekFile(sp->tif,sp->in_buffer_file_pos,SEEK_SET); + sp->in_buffer_file_pos_log=1; + } + m=OJPEG_BUFFER; + if (m>sp->in_buffer_file_togo) + m=(uint16)sp->in_buffer_file_togo; + n=TIFFReadFile(sp->tif,sp->in_buffer,(tsize_t)m); + if (n==0) + return(0); + assert(n>0); + assert(n<=OJPEG_BUFFER); + assert(n<65536); + assert((uint16)n<=sp->in_buffer_file_togo); + m=(uint16)n; + sp->in_buffer_togo=m; + sp->in_buffer_cur=sp->in_buffer; + sp->in_buffer_file_togo-=m; + sp->in_buffer_file_pos+=m; + break; + } + sp->in_buffer_file_pos_log=0; + switch(sp->in_buffer_source) + { + case osibsNotSetYet: + if (sp->jpeg_interchange_format!=0) + { + sp->in_buffer_file_pos=sp->jpeg_interchange_format; + sp->in_buffer_file_togo=sp->jpeg_interchange_format_length; + } + sp->in_buffer_source=osibsJpegInterchangeFormat; + break; + case osibsJpegInterchangeFormat: + sp->in_buffer_source=osibsStrile; + case osibsStrile: + if (sp->in_buffer_next_strile==sp->in_buffer_strile_count) + sp->in_buffer_source=osibsEof; + else + { + sp->in_buffer_file_pos=sp->tif->tif_dir.td_stripoffset[sp->in_buffer_next_strile]; + if (sp->in_buffer_file_pos!=0) + { + if (sp->in_buffer_file_pos>=sp->file_size) + sp->in_buffer_file_pos=0; + else + { + sp->in_buffer_file_togo=sp->tif->tif_dir.td_stripbytecount[sp->in_buffer_next_strile]; + if (sp->in_buffer_file_togo==0) + sp->in_buffer_file_pos=0; + else if (sp->in_buffer_file_pos+sp->in_buffer_file_togo>sp->file_size) + sp->in_buffer_file_togo=sp->file_size-sp->in_buffer_file_pos; + } + } + sp->in_buffer_next_strile++; + } + break; + default: + return(0); + } + } while (1); + return(1); +} + +static int +OJPEGReadByte(OJPEGState* sp, uint8* byte) +{ + if (sp->in_buffer_togo==0) + { + if (OJPEGReadBufferFill(sp)==0) + return(0); + assert(sp->in_buffer_togo>0); + } + *byte=*(sp->in_buffer_cur); + sp->in_buffer_cur++; + sp->in_buffer_togo--; + return(1); +} + +static int +OJPEGReadBytePeek(OJPEGState* sp, uint8* byte) +{ + if (sp->in_buffer_togo==0) + { + if (OJPEGReadBufferFill(sp)==0) + return(0); + assert(sp->in_buffer_togo>0); + } + *byte=*(sp->in_buffer_cur); + return(1); +} static void -OJPEGPrintDir(register TIFF *tif,FILE *fd,long flags) - { register OJPEGState *sp = OJState(tif); - - if ( ( flags - & (TIFFPRINT_JPEGQTABLES|TIFFPRINT_JPEGDCTABLES|TIFFPRINT_JPEGACTABLES) - ) - && sp->jpegtables_length - ) - fprintf(fd," JPEG Table Data: <present>, %lu bytes\n", - sp->jpegtables_length); - } - -static uint32 -OJPEGDefaultStripSize(register TIFF *tif,register uint32 s) - { register OJPEGState *sp = OJState(tif); -# define td (&tif->tif_dir) - - if ((s = (*sp->defsparent)(tif,s)) < td->td_imagelength) - { register tsize_t size = sp->cinfo.comm.is_decompressor -# ifdef D_LOSSLESS_SUPPORTED - ? sp->cinfo.d.min_codec_data_unit -# else - ? DCTSIZE -# endif -# ifdef C_LOSSLESS_SUPPORTED - : sp->cinfo.c.data_unit; -# else - : DCTSIZE; -# endif - - size = TIFFroundup(size,16); - s = TIFFroundup(s,td->td_ycbcrsubsampling[1]*size); - }; - return s; -# undef td - } +OJPEGReadByteAdvance(OJPEGState* sp) +{ + assert(sp->in_buffer_togo>0); + sp->in_buffer_cur++; + sp->in_buffer_togo--; +} + +static int +OJPEGReadWord(OJPEGState* sp, uint16* word) +{ + uint8 m; + if (OJPEGReadByte(sp,&m)==0) + return(0); + *word=(m<<8); + if (OJPEGReadByte(sp,&m)==0) + return(0); + *word|=m; + return(1); +} + +static int +OJPEGReadBlock(OJPEGState* sp, uint16 len, void* mem) +{ + uint16 mlen; + uint8* mmem; + uint16 n; + assert(len>0); + mlen=len; + mmem=mem; + do + { + if (sp->in_buffer_togo==0) + { + if (OJPEGReadBufferFill(sp)==0) + return(0); + assert(sp->in_buffer_togo>0); + } + n=mlen; + if (n>sp->in_buffer_togo) + n=sp->in_buffer_togo; + _TIFFmemcpy(mmem,sp->in_buffer_cur,n); + sp->in_buffer_cur+=n; + sp->in_buffer_togo-=n; + mlen-=n; + mmem+=n; + } while(mlen>0); + return(1); +} static void -OJPEGDefaultTileSize(register TIFF *tif,register uint32 *tw,register uint32 *th) - { register OJPEGState *sp = OJState(tif); - register tsize_t size; -# define td (&tif->tif_dir) - - size = sp->cinfo.comm.is_decompressor -# ifdef D_LOSSLESS_SUPPORTED - ? sp->cinfo.d.min_codec_data_unit -# else - ? DCTSIZE -# endif -# ifdef C_LOSSLESS_SUPPORTED - : sp->cinfo.c.data_unit; -# else - : DCTSIZE; -# endif - size = TIFFroundup(size,16); - (*sp->deftparent)(tif,tw,th); - *tw = TIFFroundup(*tw,td->td_ycbcrsubsampling[0]*size); - *th = TIFFroundup(*th,td->td_ycbcrsubsampling[1]*size); -# undef td - } +OJPEGReadSkip(OJPEGState* sp, uint16 len) +{ + uint16 m; + uint16 n; + m=len; + n=m; + if (n>sp->in_buffer_togo) + n=sp->in_buffer_togo; + sp->in_buffer_cur+=n; + sp->in_buffer_togo-=n; + m-=n; + if (m>0) + { + assert(sp->in_buffer_togo==0); + n=m; + if (n>sp->in_buffer_file_togo) + n=sp->in_buffer_file_togo; + sp->in_buffer_file_pos+=n; + sp->in_buffer_file_togo-=n; + sp->in_buffer_file_pos_log=0; + /* we don't skip past jpeginterchangeformat/strile block... + * if that is asked from us, we're dealing with totally bazurk + * data anyway, and we've not seen this happening on any + * testfile, so we might as well likely cause some other + * meaningless error to be passed at some later time + */ + } +} + +static int +OJPEGWriteStream(TIFF* tif, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + *len=0; + do + { + assert(sp->out_state<=ososEoi); + switch(sp->out_state) + { + case ososSoi: + OJPEGWriteStreamSoi(tif,mem,len); + break; + case ososQTable0: + OJPEGWriteStreamQTable(tif,0,mem,len); + break; + case ososQTable1: + OJPEGWriteStreamQTable(tif,1,mem,len); + break; + case ososQTable2: + OJPEGWriteStreamQTable(tif,2,mem,len); + break; + case ososQTable3: + OJPEGWriteStreamQTable(tif,3,mem,len); + break; + case ososDcTable0: + OJPEGWriteStreamDcTable(tif,0,mem,len); + break; + case ososDcTable1: + OJPEGWriteStreamDcTable(tif,1,mem,len); + break; + case ososDcTable2: + OJPEGWriteStreamDcTable(tif,2,mem,len); + break; + case ososDcTable3: + OJPEGWriteStreamDcTable(tif,3,mem,len); + break; + case ososAcTable0: + OJPEGWriteStreamAcTable(tif,0,mem,len); + break; + case ososAcTable1: + OJPEGWriteStreamAcTable(tif,1,mem,len); + break; + case ososAcTable2: + OJPEGWriteStreamAcTable(tif,2,mem,len); + break; + case ososAcTable3: + OJPEGWriteStreamAcTable(tif,3,mem,len); + break; + case ososDri: + OJPEGWriteStreamDri(tif,mem,len); + break; + case ososSof: + OJPEGWriteStreamSof(tif,mem,len); + break; + case ososSos: + OJPEGWriteStreamSos(tif,mem,len); + break; + case ososCompressed: + if (OJPEGWriteStreamCompressed(tif,mem,len)==0) + return(0); + break; + case ososRst: + OJPEGWriteStreamRst(tif,mem,len); + break; + case ososEoi: + OJPEGWriteStreamEoi(tif,mem,len); + break; + } + } while (*len==0); + return(1); +} static void -OJPEGCleanUp(register TIFF *tif) - { register OJPEGState *sp; - - if ( (sp = OJState(tif)) ) - { - CALLVJPEG(sp,jpeg_destroy(&sp->cinfo.comm)); /* Free JPEG Lib. vars. */ - if (sp->jpegtables) {_TIFFfree(sp->jpegtables);sp->jpegtables=0;} - if (sp->jpeglosslesspredictors) { - _TIFFfree(sp->jpeglosslesspredictors); - sp->jpeglosslesspredictors = 0; - } - if (sp->jpegpointtransform) { - _TIFFfree(sp->jpegpointtransform); - sp->jpegpointtransform=0; - } - if (sp->jpegqtables) {_TIFFfree(sp->jpegqtables);sp->jpegqtables=0;} - if (sp->jpegactables) {_TIFFfree(sp->jpegactables);sp->jpegactables=0;} - if (sp->jpegdctables) {_TIFFfree(sp->jpegdctables);sp->jpegdctables=0;} - /* If the image file isn't "memory mapped" and we read it all into a - single, large memory buffer, free the buffer now. - */ - if (!isMapped(tif) && tif->tif_base) /* free whole-file buffer */ - { - _TIFFfree(tif->tif_base); - tif->tif_base = 0; - tif->tif_size = 0; - }; - _TIFFfree(sp); /* Release local variables */ - tif->tif_data = 0; - } - } +OJPEGWriteStreamSoi(TIFF* tif, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + assert(OJPEG_BUFFER>=2); + sp->out_buffer[0]=255; + sp->out_buffer[1]=JPEG_MARKER_SOI; + *len=2; + *mem=(void*)sp->out_buffer; + sp->out_state++; +} + +static void +OJPEGWriteStreamQTable(TIFF* tif, uint8 table_index, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + if (sp->qtable[table_index]!=0) + { + *mem=(void*)(sp->qtable[table_index]+sizeof(uint32)); + *len=*((uint32*)sp->qtable[table_index])-sizeof(uint32); + } + sp->out_state++; +} + +static void +OJPEGWriteStreamDcTable(TIFF* tif, uint8 table_index, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + if (sp->dctable[table_index]!=0) + { + *mem=(void*)(sp->dctable[table_index]+sizeof(uint32)); + *len=*((uint32*)sp->dctable[table_index])-sizeof(uint32); + } + sp->out_state++; +} + +static void +OJPEGWriteStreamAcTable(TIFF* tif, uint8 table_index, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + if (sp->actable[table_index]!=0) + { + *mem=(void*)(sp->actable[table_index]+sizeof(uint32)); + *len=*((uint32*)sp->actable[table_index])-sizeof(uint32); + } + sp->out_state++; +} + +static void +OJPEGWriteStreamDri(TIFF* tif, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + assert(OJPEG_BUFFER>=6); + if (sp->restart_interval!=0) + { + sp->out_buffer[0]=255; + sp->out_buffer[1]=JPEG_MARKER_DRI; + sp->out_buffer[2]=0; + sp->out_buffer[3]=4; + sp->out_buffer[4]=(sp->restart_interval>>8); + sp->out_buffer[5]=(sp->restart_interval&255); + *len=6; + *mem=(void*)sp->out_buffer; + } + sp->out_state++; +} + +static void +OJPEGWriteStreamSof(TIFF* tif, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8 m; + assert(OJPEG_BUFFER>=2+8+sp->samples_per_pixel_per_plane*3); + assert(255>=8+sp->samples_per_pixel_per_plane*3); + sp->out_buffer[0]=255; + sp->out_buffer[1]=sp->sof_marker_id; + /* Lf */ + sp->out_buffer[2]=0; + sp->out_buffer[3]=8+sp->samples_per_pixel_per_plane*3; + /* P */ + sp->out_buffer[4]=8; + /* Y */ + sp->out_buffer[5]=(sp->sof_y>>8); + sp->out_buffer[6]=(sp->sof_y&255); + /* X */ + sp->out_buffer[7]=(sp->sof_x>>8); + sp->out_buffer[8]=(sp->sof_x&255); + /* Nf */ + sp->out_buffer[9]=sp->samples_per_pixel_per_plane; + for (m=0; m<sp->samples_per_pixel_per_plane; m++) + { + /* C */ + sp->out_buffer[10+m*3]=sp->sof_c[sp->plane_sample_offset+m]; + /* H and V */ + sp->out_buffer[10+m*3+1]=sp->sof_hv[sp->plane_sample_offset+m]; + /* Tq */ + sp->out_buffer[10+m*3+2]=sp->sof_tq[sp->plane_sample_offset+m]; + } + *len=10+sp->samples_per_pixel_per_plane*3; + *mem=(void*)sp->out_buffer; + sp->out_state++; +} + +static void +OJPEGWriteStreamSos(TIFF* tif, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8 m; + assert(OJPEG_BUFFER>=2+6+sp->samples_per_pixel_per_plane*2); + assert(255>=6+sp->samples_per_pixel_per_plane*2); + sp->out_buffer[0]=255; + sp->out_buffer[1]=JPEG_MARKER_SOS; + /* Ls */ + sp->out_buffer[2]=0; + sp->out_buffer[3]=6+sp->samples_per_pixel_per_plane*2; + /* Ns */ + sp->out_buffer[4]=sp->samples_per_pixel_per_plane; + for (m=0; m<sp->samples_per_pixel_per_plane; m++) + { + /* Cs */ + sp->out_buffer[5+m*2]=sp->sos_cs[sp->plane_sample_offset+m]; + /* Td and Ta */ + sp->out_buffer[5+m*2+1]=sp->sos_tda[sp->plane_sample_offset+m]; + } + /* Ss */ + sp->out_buffer[5+sp->samples_per_pixel_per_plane*2]=0; + /* Se */ + sp->out_buffer[5+sp->samples_per_pixel_per_plane*2+1]=63; + /* Ah and Al */ + sp->out_buffer[5+sp->samples_per_pixel_per_plane*2+2]=0; + *len=8+sp->samples_per_pixel_per_plane*2; + *mem=(void*)sp->out_buffer; + sp->out_state++; +} + +static int +OJPEGWriteStreamCompressed(TIFF* tif, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + if (sp->in_buffer_togo==0) + { + if (OJPEGReadBufferFill(sp)==0) + return(0); + assert(sp->in_buffer_togo>0); + } + *len=sp->in_buffer_togo; + *mem=(void*)sp->in_buffer_cur; + sp->in_buffer_togo=0; + if (sp->in_buffer_file_togo==0) + { + switch(sp->in_buffer_source) + { + case osibsStrile: + if (sp->in_buffer_next_strile<sp->in_buffer_strile_count) + sp->out_state=ososRst; + else + sp->out_state=ososEoi; + break; + case osibsEof: + sp->out_state=ososEoi; + break; + default: + break; + } + } + return(1); +} + +static void +OJPEGWriteStreamRst(TIFF* tif, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + assert(OJPEG_BUFFER>=2); + sp->out_buffer[0]=255; + sp->out_buffer[1]=JPEG_MARKER_RST0+sp->restart_index; + sp->restart_index++; + if (sp->restart_index==8) + sp->restart_index=0; + *len=2; + *mem=(void*)sp->out_buffer; + sp->out_state=ososCompressed; +} + +static void +OJPEGWriteStreamEoi(TIFF* tif, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + assert(OJPEG_BUFFER>=2); + sp->out_buffer[0]=255; + sp->out_buffer[1]=JPEG_MARKER_EOI; + *len=2; + *mem=(void*)sp->out_buffer; +} + +#ifndef LIBJPEG_ENCAP_EXTERNAL +static int +jpeg_create_decompress_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo) +{ + return(SETJMP(sp->exit_jmpbuf)?0:(jpeg_create_decompress(cinfo),1)); +} +#endif + +#ifndef LIBJPEG_ENCAP_EXTERNAL +static int +jpeg_read_header_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, uint8 require_image) +{ + return(SETJMP(sp->exit_jmpbuf)?0:(jpeg_read_header(cinfo,require_image),1)); +} +#endif + +#ifndef LIBJPEG_ENCAP_EXTERNAL +static int +jpeg_start_decompress_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo) +{ + return(SETJMP(sp->exit_jmpbuf)?0:(jpeg_start_decompress(cinfo),1)); +} +#endif + +#ifndef LIBJPEG_ENCAP_EXTERNAL +static int +jpeg_read_scanlines_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, void* scanlines, uint32 max_lines) +{ + return(SETJMP(sp->exit_jmpbuf)?0:(jpeg_read_scanlines(cinfo,scanlines,max_lines),1)); +} +#endif + +#ifndef LIBJPEG_ENCAP_EXTERNAL +static int +jpeg_read_raw_data_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, void* data, uint32 max_lines) +{ + return(SETJMP(sp->exit_jmpbuf)?0:(jpeg_read_raw_data(cinfo,data,max_lines),1)); +} +#endif + +#ifndef LIBJPEG_ENCAP_EXTERNAL +static void +jpeg_encap_unwind(TIFF* tif) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + LONGJMP(sp->exit_jmpbuf,1); +} +#endif + +static void +OJPEGLibjpegJpegErrorMgrOutputMessage(jpeg_common_struct* cinfo) +{ + char buffer[JMSG_LENGTH_MAX]; + (*cinfo->err->format_message)(cinfo,buffer); + TIFFWarningExt(((TIFF*)(cinfo->client_data))->tif_clientdata,"LibJpeg",buffer); +} + +static void +OJPEGLibjpegJpegErrorMgrErrorExit(jpeg_common_struct* cinfo) +{ + char buffer[JMSG_LENGTH_MAX]; + (*cinfo->err->format_message)(cinfo,buffer); + TIFFErrorExt(((TIFF*)(cinfo->client_data))->tif_clientdata,"LibJpeg",buffer); + jpeg_encap_unwind((TIFF*)(cinfo->client_data)); +} + +static void +OJPEGLibjpegJpegSourceMgrInitSource(jpeg_decompress_struct* cinfo) +{ + (void)cinfo; +} + +static boolean +OJPEGLibjpegJpegSourceMgrFillInputBuffer(jpeg_decompress_struct* cinfo) +{ + TIFF* tif=(TIFF*)cinfo->client_data; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + void* mem=0; + uint32 len=0; + if (OJPEGWriteStream(tif,&mem,&len)==0) + { + TIFFErrorExt(tif->tif_clientdata,"LibJpeg","Premature end of JPEG data"); + jpeg_encap_unwind(tif); + } + sp->libjpeg_jpeg_source_mgr.bytes_in_buffer=len; + sp->libjpeg_jpeg_source_mgr.next_input_byte=mem; + return(1); +} + +static void +OJPEGLibjpegJpegSourceMgrSkipInputData(jpeg_decompress_struct* cinfo, long num_bytes) +{ + TIFF* tif=(TIFF*)cinfo->client_data; + (void)num_bytes; + TIFFErrorExt(tif->tif_clientdata,"LibJpeg","Unexpected error"); + jpeg_encap_unwind(tif); +} + +static boolean +OJPEGLibjpegJpegSourceMgrResyncToRestart(jpeg_decompress_struct* cinfo, int desired) +{ + TIFF* tif=(TIFF*)cinfo->client_data; + (void)desired; + TIFFErrorExt(tif->tif_clientdata,"LibJpeg","Unexpected error"); + jpeg_encap_unwind(tif); + return(0); +} + +static void +OJPEGLibjpegJpegSourceMgrTermSource(jpeg_decompress_struct* cinfo) +{ + (void)cinfo; +} + +#endif -int -TIFFInitOJPEG(register TIFF *tif,int scheme) - { register OJPEGState *sp; -# define td (&tif->tif_dir) -# ifndef never - - /* This module supports a decompression-only CODEC, which is intended strictly - for viewing old image files using the obsolete JPEG-in-TIFF encapsulation - specified by the TIFF Version 6.0 specification. It does not, and never - should, support compression for new images. If a client application asks us - to, refuse and complain loudly! - */ - if (tif->tif_mode != O_RDONLY) return _notSupported(tif); -# endif /* never */ - if (!isMapped(tif)) - { - - /* BEWARE OF KLUDGE: If our host operating-system doesn't let an image - file be "memory mapped", then we want to read the - entire file into a single (possibly large) memory buffer as if it had - been "memory mapped". Although this is likely to waste space, because - analysis of the file's content might cause parts of it to be read into - smaller buffers duplicatively, it appears to be the lesser of several - evils. Very old JPEG-in-TIFF encapsulations aren't guaranteed to be - JFIF bit streams, or to have a TIFF "JPEGTables" record or much other - "metadata" to help us locate the decoding tables and entropy-coded data, - so we're likely do a lot of random-access grokking around, and we must - ultimately tell the JPEG Library to sequentially scan much of the file - anyway. This is all likely to be easier if we use "brute force" to - read the entire file, once, and don't use incremental disc I/O. If our - client application tries to process a file so big that we can't buffer - it entirely, then tough shit: we'll give up and exit! - */ - if (!(tif->tif_base = _TIFFmalloc(tif->tif_size=TIFFGetFileSize(tif)))) - { - TIFFError(tif->tif_name,"Cannot allocate file buffer"); - return 0; - }; - if (!SeekOK(tif,0) || !ReadOK(tif,tif->tif_base,tif->tif_size)) - { - TIFFError(tif->tif_name,"Cannot read file"); - return 0; - } - }; - - /* Allocate storage for this module's per-file variables. */ - - if (!(tif->tif_data = (tidata_t)_TIFFmalloc(sizeof *sp))) - { - TIFFError("TIFFInitOJPEG","No space for JPEG state block"); - return 0; - }; - (sp = OJState(tif))->tif = tif; /* Initialize reverse pointer */ - sp->cinfo.d.err = jpeg_std_error(&sp->err); /* Initialize error handling */ - sp->err.error_exit = TIFFojpeg_error_exit; - sp->err.output_message = TIFFojpeg_output_message; - if (!CALLVJPEG(sp,jpeg_create_decompress(&sp->cinfo.d))) return 0; - - /* Install CODEC-specific tag information and override default TIFF Library - "method" subroutines with our own, CODEC-specific methods. Like all good - members of an object-class, we save some of these subroutine pointers for - "fall back" in case our own methods fail. - */ - _TIFFMergeFieldInfo(tif,ojpegFieldInfo, - sizeof ojpegFieldInfo/sizeof *ojpegFieldInfo); - sp->defsparent = tif->tif_defstripsize; - sp->deftparent = tif->tif_deftilesize; - sp->vgetparent = tif->tif_tagmethods.vgetfield; - sp->vsetparent = tif->tif_tagmethods.vsetfield; - tif->tif_defstripsize = OJPEGDefaultStripSize; - tif->tif_deftilesize = OJPEGDefaultTileSize; - tif->tif_tagmethods.vgetfield = OJPEGVGetField; - tif->tif_tagmethods.vsetfield = OJPEGVSetField; - tif->tif_tagmethods.printdir = OJPEGPrintDir; -# ifdef never - tif->tif_setupencode = OJPEGSetupEncode; - tif->tif_preencode = OJPEGPreEncode; - tif->tif_postencode = OJPEGPostEncode; -# else /* well, hardly ever */ - tif->tif_setupencode = tif->tif_postencode = _notSupported; - tif->tif_preencode = (TIFFPreMethod)_notSupported; -# endif /* never */ - tif->tif_setupdecode = OJPEGSetupDecode; - tif->tif_predecode = OJPEGPreDecode; - tif->tif_postdecode = OJPEGPostDecode; - tif->tif_cleanup = OJPEGCleanUp; - - /* If the image file doesn't have "JPEGInterchangeFormat[Length]" TIFF records - to guide us, we have few clues about where its encapsulated JPEG bit stream - is located, so establish intelligent defaults: If the Image File Directory - doesn't immediately follow the TIFF header, assume that the JPEG data lies - in between; otherwise, assume that it follows the Image File Directory. - */ - if (tif->tif_header.tiff_diroff > sizeof tif->tif_header) - { - sp->src.next_input_byte = tif->tif_base + sizeof tif->tif_header; - sp->src.bytes_in_buffer = tif->tif_header.tiff_diroff - - sizeof tif->tif_header; - } - else /* this case is ugly! */ - { uint32 maxoffset = tif->tif_size; - uint16 dircount; - - /* Calculate the offset to the next Image File Directory, if there is one, - or to the end of the file, if not. Then arrange to read the file from - the end of the Image File Directory to that offset. - */ - if (tif->tif_nextdiroff) maxoffset = tif->tif_nextdiroff; /* Not EOF */ - _TIFFmemcpy(&dircount,(const tdata_t) - (sp->src.next_input_byte = tif->tif_base+tif->tif_header.tiff_diroff), - sizeof dircount); - if (tif->tif_flags & TIFF_SWAB) TIFFSwabShort(&dircount); - sp->src.next_input_byte += dircount*sizeof(TIFFDirEntry) - + sizeof maxoffset + sizeof dircount; - sp->src.bytes_in_buffer = tif->tif_base - sp->src.next_input_byte - + maxoffset; - }; - - /* IJG JPEG Library Version 6B can be configured for either 8- or 12-bit sample - precision, but we assume that "old JPEG" TIFF clients only need 8 bits. - */ - sp->cinfo.d.data_precision = 8; -# ifdef C_LOSSLESS_SUPPORTED - /* If the "JPEGProc" TIFF tag is missing from the Image File Dictionary, the - JPEG Library will use its (lossy) baseline sequential process by default. - */ - sp->cinfo.d.data_unit = DCTSIZE; -# endif /* C_LOSSLESS_SUPPORTED */ - - /* Initialize other CODEC-specific variables requiring default values. */ - - tif->tif_flags |= TIFF_NOBITREV; /* No bit-reversal within data bytes */ - sp->h_sampling = sp->v_sampling = 1; /* No subsampling by default */ - sp->is_WANG = 0; /* Assume not a MS Windows Wang Imaging file by default */ - sp->jpegtables = 0; /* No "new"-style JPEG tables synthesized yet */ - sp->jpegtables_length = 0; - sp->jpegquality = 75; /* Default IJG quality */ - sp->jpegcolormode = JPEGCOLORMODE_RAW; - sp->jpegtablesmode = 0; /* No tables found yet */ - sp->jpeglosslesspredictors=0; - sp->jpeglosslesspredictors_length=0; - sp->jpegpointtransform=0; - sp->jpegpointtransform_length=0; - sp->jpegqtables=0; - sp->jpegqtables_length=0; - sp->jpegdctables=0; - sp->jpegdctables_length=0; - sp->jpegactables=0; - sp->jpegactables_length=0; - return 1; -# undef td - } -#endif /* OJPEG_SUPPORT */ - -/* vim: set ts=8 sts=8 sw=8 noet: */ diff --git a/src/libtiff/tif_open.c b/src/libtiff/tif_open.c index 98b30fa..9020973 100644 --- a/src/libtiff/tif_open.c +++ b/src/libtiff/tif_open.c @@ -1,4 +1,4 @@ -/* $Id: tif_open.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_open.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -198,7 +198,7 @@ TIFFClientOpen( */ tif->tif_flags = FILLORDER_MSB2LSB; if (m == O_RDONLY ) - tif->tif_flags |= TIFF_MAPPED; + tif->tif_flags |= TIFF_MAPPED; #ifdef STRIPCHOP_DEFAULT if (m == O_RDONLY || m == O_RDWR) @@ -307,7 +307,8 @@ TIFFClientOpen( if (tif->tif_mode & O_TRUNC || !ReadOK(tif, &tif->tif_header, sizeof (TIFFHeader))) { if (tif->tif_mode == O_RDONLY) { - TIFFErrorExt(tif->tif_clientdata, name, "Cannot read TIFF header"); + TIFFErrorExt(tif->tif_clientdata, name, + "Cannot read TIFF header"); goto bad; } /* @@ -336,7 +337,8 @@ TIFFClientOpen( TIFFSeekFile( tif, 0, SEEK_SET ); if (!WriteOK(tif, &tif->tif_header, sizeof (TIFFHeader))) { - TIFFErrorExt(tif->tif_clientdata, name, "Error writing TIFF header"); + TIFFErrorExt(tif->tif_clientdata, name, + "Error writing TIFF header"); goto bad; } /* @@ -350,6 +352,7 @@ TIFFClientOpen( goto bad; tif->tif_diroff = 0; tif->tif_dirlist = NULL; + tif->tif_dirlistsize = 0; tif->tif_dirnumber = 0; return (tif); } @@ -366,10 +369,12 @@ TIFFClientOpen( tif->tif_header.tiff_magic != MDI_LITTLEENDIAN #endif ) { - TIFFErrorExt(tif->tif_clientdata, name, "Not a TIFF or MDI file, bad magic number %d (0x%x)", + TIFFErrorExt(tif->tif_clientdata, name, + "Not a TIFF or MDI file, bad magic number %d (0x%x)", #else ) { - TIFFErrorExt(tif->tif_clientdata, name, "Not a TIFF file, bad magic number %d (0x%x)", + TIFFErrorExt(tif->tif_clientdata, name, + "Not a TIFF file, bad magic number %d (0x%x)", #endif tif->tif_header.tiff_magic, tif->tif_header.tiff_magic); @@ -398,7 +403,7 @@ TIFFClientOpen( TIFFErrorExt(tif->tif_clientdata, name, "Not a TIFF file, bad version number %d (0x%x)", tif->tif_header.tiff_version, - tif->tif_header.tiff_version); + tif->tif_header.tiff_version); goto bad; } tif->tif_flags |= TIFF_MYBUFFER; diff --git a/src/libtiff/tif_packbits.c b/src/libtiff/tif_packbits.c index 644d0e5..8c40b60 100644 --- a/src/libtiff/tif_packbits.c +++ b/src/libtiff/tif_packbits.c @@ -1,4 +1,4 @@ -/* $Id: tif_packbits.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_packbits.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -240,7 +240,7 @@ PackBitsDecode(TIFF* tif, tidata_t op, tsize_t occ, tsample_t s) if( occ < n ) { TIFFWarningExt(tif->tif_clientdata, tif->tif_name, - "PackBitsDecode: discarding %d bytes " + "PackBitsDecode: discarding %ld bytes " "to avoid buffer overrun", n - occ); n = occ; @@ -253,7 +253,7 @@ PackBitsDecode(TIFF* tif, tidata_t op, tsize_t occ, tsample_t s) if (occ < n + 1) { TIFFWarningExt(tif->tif_clientdata, tif->tif_name, - "PackBitsDecode: discarding %d bytes " + "PackBitsDecode: discarding %ld bytes " "to avoid buffer overrun", n - occ + 1); n = occ - 1; diff --git a/src/libtiff/tif_pixarlog.c b/src/libtiff/tif_pixarlog.c index b7acbaa..b05b6da 100644 --- a/src/libtiff/tif_pixarlog.c +++ b/src/libtiff/tif_pixarlog.c @@ -1,4 +1,4 @@ -/* $Id: tif_pixarlog.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_pixarlog.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1996-1997 Sam Leffler @@ -327,7 +327,7 @@ horizontalAccumulate11(uint16 *wp, int n, int stride, uint16 *op) while (n > 0) { REPEAT(stride, wp[stride] += *wp; *op = *wp&mask; wp++; op++) - n -= stride; + n -= stride; } } } @@ -593,7 +593,6 @@ PixarLogMakeTables(PixarLogState *sp) static int PixarLogEncode(TIFF*, tidata_t, tsize_t, tsample_t); static int PixarLogDecode(TIFF*, tidata_t, tsize_t, tsample_t); -#define N(a) (sizeof(a)/sizeof(a[0])) #define PIXARLOGDATAFMT_UNKNOWN -1 static int @@ -768,6 +767,18 @@ PixarLogDecode(TIFF* tif, tidata_t op, tsize_t occ, tsample_t s) if (tif->tif_flags & TIFF_SWAB) TIFFSwabArrayOfShort(up, nsamples); + /* + * if llen is not an exact multiple of nsamples, the decode operation + * may overflow the output buffer, so truncate it enough to prevent + * that but still salvage as much data as possible. + */ + if (nsamples % llen) { + TIFFWarningExt(tif->tif_clientdata, module, + "%s: stride %d is not a multiple of sample count, " + "%d, data truncated.", tif->tif_name, llen, nsamples); + nsamples -= nsamples % llen; + } + for (i = 0; i < nsamples; i += llen, up += llen) { switch (sp->user_datafmt) { case PIXARLOGDATAFMT_FLOAT: @@ -1036,7 +1047,7 @@ PixarLogEncode(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) TIFFDirectory *td = &tif->tif_dir; PixarLogState *sp = EncoderState(tif); static const char module[] = "PixarLogEncode"; - int i, n, llen; + int i, n, llen; unsigned short * up; (void) s; @@ -1278,11 +1289,23 @@ static const TIFFFieldInfo pixarlogFieldInfo[] = { int TIFFInitPixarLog(TIFF* tif, int scheme) { + static const char module[] = "TIFFInitPixarLog"; + PixarLogState* sp; assert(scheme == COMPRESSION_PIXARLOG); /* + * Merge codec-specific tag information. + */ + if (!_TIFFMergeFieldInfo(tif, pixarlogFieldInfo, + TIFFArrayCount(pixarlogFieldInfo))) { + TIFFErrorExt(tif->tif_clientdata, module, + "Merging PixarLog codec-specific tags failed"); + return 0; + } + + /* * Allocate state block so tag methods have storage to record values. */ tif->tif_data = (tidata_t) _TIFFmalloc(sizeof (PixarLogState)); @@ -1311,7 +1334,6 @@ TIFFInitPixarLog(TIFF* tif, int scheme) tif->tif_cleanup = PixarLogCleanup; /* Override SetField so we can handle our private pseudo-tag */ - _TIFFMergeFieldInfo(tif, pixarlogFieldInfo, N(pixarlogFieldInfo)); sp->vgetparent = tif->tif_tagmethods.vgetfield; tif->tif_tagmethods.vgetfield = PixarLogVGetField; /* hook for codec tags */ sp->vsetparent = tif->tif_tagmethods.vsetfield; @@ -1333,7 +1355,7 @@ TIFFInitPixarLog(TIFF* tif, int scheme) return (1); bad: - TIFFErrorExt(tif->tif_clientdata, "TIFFInitPixarLog", + TIFFErrorExt(tif->tif_clientdata, module, "No space for PixarLog state block"); return (0); } diff --git a/src/libtiff/tif_predict.c b/src/libtiff/tif_predict.c index e738ca3..ca5c091 100644 --- a/src/libtiff/tif_predict.c +++ b/src/libtiff/tif_predict.c @@ -1,4 +1,4 @@ -/* $Id: tif_predict.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_predict.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -36,9 +36,12 @@ static void horAcc8(TIFF*, tidata_t, tsize_t); static void horAcc16(TIFF*, tidata_t, tsize_t); +static void horAcc32(TIFF*, tidata_t, tsize_t); static void swabHorAcc16(TIFF*, tidata_t, tsize_t); +static void swabHorAcc32(TIFF*, tidata_t, tsize_t); static void horDiff8(TIFF*, tidata_t, tsize_t); static void horDiff16(TIFF*, tidata_t, tsize_t); +static void horDiff32(TIFF*, tidata_t, tsize_t); static void fpAcc(TIFF*, tidata_t, tsize_t); static void fpDiff(TIFF*, tidata_t, tsize_t); static int PredictorDecodeRow(TIFF*, tidata_t, tsize_t, tsample_t); @@ -60,7 +63,8 @@ PredictorSetup(TIFF* tif) return 1; case PREDICTOR_HORIZONTAL: if (td->td_bitspersample != 8 - && td->td_bitspersample != 16) { + && td->td_bitspersample != 16 + && td->td_bitspersample != 32) { TIFFErrorExt(tif->tif_clientdata, module, "Horizontal differencing \"Predictor\" not supported with %d-bit samples", td->td_bitspersample); @@ -105,19 +109,23 @@ PredictorSetupDecode(TIFF* tif) if (sp->predictor == 2) { switch (td->td_bitspersample) { - case 8: sp->pfunc = horAcc8; break; - case 16: sp->pfunc = horAcc16; break; + case 8: sp->decodepfunc = horAcc8; break; + case 16: sp->decodepfunc = horAcc16; break; + case 32: sp->decodepfunc = horAcc32; break; } /* * Override default decoding method with one that does the * predictor stuff. */ - sp->coderow = tif->tif_decoderow; - tif->tif_decoderow = PredictorDecodeRow; - sp->codestrip = tif->tif_decodestrip; - tif->tif_decodestrip = PredictorDecodeTile; - sp->codetile = tif->tif_decodetile; - tif->tif_decodetile = PredictorDecodeTile; + if( tif->tif_decoderow != PredictorDecodeRow ) + { + sp->decoderow = tif->tif_decoderow; + tif->tif_decoderow = PredictorDecodeRow; + sp->decodestrip = tif->tif_decodestrip; + tif->tif_decodestrip = PredictorDecodeTile; + sp->decodetile = tif->tif_decodetile; + tif->tif_decodetile = PredictorDecodeTile; + } /* * If the data is horizontally differenced 16-bit data that * requires byte-swapping, then it must be byte swapped before @@ -126,25 +134,31 @@ PredictorSetupDecode(TIFF* tif) * the library setup when the directory was read. */ if (tif->tif_flags & TIFF_SWAB) { - if (sp->pfunc == horAcc16) { - sp->pfunc = swabHorAcc16; + if (sp->decodepfunc == horAcc16) { + sp->decodepfunc = swabHorAcc16; tif->tif_postdecode = _TIFFNoPostDecode; - } /* else handle 32-bit case... */ + } else if (sp->decodepfunc == horAcc32) { + sp->decodepfunc = swabHorAcc32; + tif->tif_postdecode = _TIFFNoPostDecode; + } } } else if (sp->predictor == 3) { - sp->pfunc = fpAcc; + sp->decodepfunc = fpAcc; /* * Override default decoding method with one that does the * predictor stuff. */ - sp->coderow = tif->tif_decoderow; - tif->tif_decoderow = PredictorDecodeRow; - sp->codestrip = tif->tif_decodestrip; - tif->tif_decodestrip = PredictorDecodeTile; - sp->codetile = tif->tif_decodetile; - tif->tif_decodetile = PredictorDecodeTile; + if( tif->tif_decoderow != PredictorDecodeRow ) + { + sp->decoderow = tif->tif_decoderow; + tif->tif_decoderow = PredictorDecodeRow; + sp->decodestrip = tif->tif_decodestrip; + tif->tif_decodestrip = PredictorDecodeTile; + sp->decodetile = tif->tif_decodetile; + tif->tif_decodetile = PredictorDecodeTile; + } /* * The data should not be swapped outside of the floating * point predictor, the accumulation routine should return @@ -173,33 +187,40 @@ PredictorSetupEncode(TIFF* tif) if (sp->predictor == 2) { switch (td->td_bitspersample) { - case 8: sp->pfunc = horDiff8; break; - case 16: sp->pfunc = horDiff16; break; + case 8: sp->encodepfunc = horDiff8; break; + case 16: sp->encodepfunc = horDiff16; break; + case 32: sp->encodepfunc = horDiff32; break; } /* * Override default encoding method with one that does the * predictor stuff. */ - sp->coderow = tif->tif_encoderow; - tif->tif_encoderow = PredictorEncodeRow; - sp->codestrip = tif->tif_encodestrip; - tif->tif_encodestrip = PredictorEncodeTile; - sp->codetile = tif->tif_encodetile; - tif->tif_encodetile = PredictorEncodeTile; + if( tif->tif_encoderow != PredictorEncodeRow ) + { + sp->encoderow = tif->tif_encoderow; + tif->tif_encoderow = PredictorEncodeRow; + sp->encodestrip = tif->tif_encodestrip; + tif->tif_encodestrip = PredictorEncodeTile; + sp->encodetile = tif->tif_encodetile; + tif->tif_encodetile = PredictorEncodeTile; + } } else if (sp->predictor == 3) { - sp->pfunc = fpDiff; + sp->encodepfunc = fpDiff; /* * Override default encoding method with one that does the * predictor stuff. */ - sp->coderow = tif->tif_encoderow; - tif->tif_encoderow = PredictorEncodeRow; - sp->codestrip = tif->tif_encodestrip; - tif->tif_encodestrip = PredictorEncodeTile; - sp->codetile = tif->tif_encodetile; - tif->tif_encodetile = PredictorEncodeTile; + if( tif->tif_encoderow != PredictorEncodeRow ) + { + sp->encoderow = tif->tif_encoderow; + tif->tif_encoderow = PredictorEncodeRow; + sp->encodestrip = tif->tif_encodestrip; + tif->tif_encodestrip = PredictorEncodeTile; + sp->encodetile = tif->tif_encodetile; + tif->tif_encodetile = PredictorEncodeTile; + } } return 1; @@ -291,6 +312,39 @@ horAcc16(TIFF* tif, tidata_t cp0, tsize_t cc) } } +static void +swabHorAcc32(TIFF* tif, tidata_t cp0, tsize_t cc) +{ + tsize_t stride = PredictorState(tif)->stride; + uint32* wp = (uint32*) cp0; + tsize_t wc = cc / 4; + + if (wc > stride) { + TIFFSwabArrayOfLong(wp, wc); + wc -= stride; + do { + REPEAT4(stride, wp[stride] += wp[0]; wp++) + wc -= stride; + } while ((int32) wc > 0); + } +} + +static void +horAcc32(TIFF* tif, tidata_t cp0, tsize_t cc) +{ + tsize_t stride = PredictorState(tif)->stride; + uint32* wp = (uint32*) cp0; + tsize_t wc = cc / 4; + + if (wc > stride) { + wc -= stride; + do { + REPEAT4(stride, wp[stride] += wp[0]; wp++) + wc -= stride; + } while ((int32) wc > 0); + } +} + /* * Floating point predictor accumulation routine. */ @@ -337,11 +391,11 @@ PredictorDecodeRow(TIFF* tif, tidata_t op0, tsize_t occ0, tsample_t s) TIFFPredictorState *sp = PredictorState(tif); assert(sp != NULL); - assert(sp->coderow != NULL); - assert(sp->pfunc != NULL); + assert(sp->decoderow != NULL); + assert(sp->decodepfunc != NULL); - if ((*sp->coderow)(tif, op0, occ0, s)) { - (*sp->pfunc)(tif, op0, occ0); + if ((*sp->decoderow)(tif, op0, occ0, s)) { + (*sp->decodepfunc)(tif, op0, occ0); return 1; } else return 0; @@ -360,14 +414,14 @@ PredictorDecodeTile(TIFF* tif, tidata_t op0, tsize_t occ0, tsample_t s) TIFFPredictorState *sp = PredictorState(tif); assert(sp != NULL); - assert(sp->codetile != NULL); + assert(sp->decodetile != NULL); - if ((*sp->codetile)(tif, op0, occ0, s)) { + if ((*sp->decodetile)(tif, op0, occ0, s)) { tsize_t rowsize = sp->rowsize; assert(rowsize > 0); - assert(sp->pfunc != NULL); + assert(sp->decodepfunc != NULL); while ((long)occ0 > 0) { - (*sp->pfunc)(tif, op0, (tsize_t) rowsize); + (*sp->decodepfunc)(tif, op0, (tsize_t) rowsize); occ0 -= rowsize; op0 += rowsize; } @@ -439,6 +493,24 @@ horDiff16(TIFF* tif, tidata_t cp0, tsize_t cc) } } +static void +horDiff32(TIFF* tif, tidata_t cp0, tsize_t cc) +{ + TIFFPredictorState* sp = PredictorState(tif); + tsize_t stride = sp->stride; + int32 *wp = (int32*) cp0; + tsize_t wc = cc/4; + + if (wc > stride) { + wc -= stride; + wp += wc - 1; + do { + REPEAT4(stride, wp[stride] -= wp[0]; wp--) + wc -= stride; + } while ((int32) wc > 0); + } +} + /* * Floating point predictor differencing routine. */ @@ -481,33 +553,56 @@ PredictorEncodeRow(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) TIFFPredictorState *sp = PredictorState(tif); assert(sp != NULL); - assert(sp->pfunc != NULL); - assert(sp->coderow != NULL); + assert(sp->encodepfunc != NULL); + assert(sp->encoderow != NULL); /* XXX horizontal differencing alters user's data XXX */ - (*sp->pfunc)(tif, bp, cc); - return (*sp->coderow)(tif, bp, cc, s); + (*sp->encodepfunc)(tif, bp, cc); + return (*sp->encoderow)(tif, bp, cc, s); } static int PredictorEncodeTile(TIFF* tif, tidata_t bp0, tsize_t cc0, tsample_t s) { + static const char module[] = "PredictorEncodeTile"; TIFFPredictorState *sp = PredictorState(tif); + uint8 *working_copy; tsize_t cc = cc0, rowsize; - unsigned char* bp = bp0; + unsigned char* bp; + int result_code; assert(sp != NULL); - assert(sp->pfunc != NULL); - assert(sp->codetile != NULL); + assert(sp->encodepfunc != NULL); + assert(sp->encodetile != NULL); + + /* + * Do predictor manipulation in a working buffer to avoid altering + * the callers buffer. http://trac.osgeo.org/gdal/ticket/1965 + */ + working_copy = (uint8*) _TIFFmalloc(cc0); + if( working_copy == NULL ) + { + TIFFErrorExt(tif->tif_clientdata, module, + "Out of memory allocating %d byte temp buffer.", + cc0 ); + return 0; + } + memcpy( working_copy, bp0, cc0 ); + bp = working_copy; rowsize = sp->rowsize; assert(rowsize > 0); - while ((long)cc > 0) { - (*sp->pfunc)(tif, bp, (tsize_t) rowsize); + assert((cc0%rowsize)==0); + while (cc > 0) { + (*sp->encodepfunc)(tif, bp, rowsize); cc -= rowsize; bp += rowsize; } - return (*sp->codetile)(tif, bp0, cc0, s); + result_code = (*sp->encodetile)(tif, working_copy, cc0, s); + + _TIFFfree( working_copy ); + + return result_code; } #define FIELD_PREDICTOR (FIELD_CODEC+0) /* XXX */ @@ -516,7 +611,6 @@ static const TIFFFieldInfo predictFieldInfo[] = { { TIFFTAG_PREDICTOR, 1, 1, TIFF_SHORT, FIELD_PREDICTOR, FALSE, FALSE, "Predictor" }, }; -#define N(a) (sizeof (a) / sizeof (a[0])) static int PredictorVSetField(TIFF* tif, ttag_t tag, va_list ap) @@ -583,10 +677,18 @@ TIFFPredictorInit(TIFF* tif) assert(sp != 0); /* - * Merge codec-specific tag information and - * override parent get/set field methods. + * Merge codec-specific tag information. + */ + if (!_TIFFMergeFieldInfo(tif, predictFieldInfo, + TIFFArrayCount(predictFieldInfo))) { + TIFFErrorExt(tif->tif_clientdata, "TIFFPredictorInit", + "Merging Predictor codec-specific tags failed"); + return 0; + } + + /* + * Override parent get/set field methods. */ - _TIFFMergeFieldInfo(tif, predictFieldInfo, N(predictFieldInfo)); sp->vgetparent = tif->tif_tagmethods.vgetfield; tif->tif_tagmethods.vgetfield = PredictorVGetField;/* hook for predictor tag */ @@ -603,7 +705,8 @@ TIFFPredictorInit(TIFF* tif) tif->tif_setupencode = PredictorSetupEncode; sp->predictor = 1; /* default value */ - sp->pfunc = NULL; /* no predictor routine */ + sp->encodepfunc = NULL; /* no predictor routine */ + sp->decodepfunc = NULL; /* no predictor routine */ return 1; } diff --git a/src/libtiff/tif_predict.h b/src/libtiff/tif_predict.h index 594f973..00dacde 100644 --- a/src/libtiff/tif_predict.h +++ b/src/libtiff/tif_predict.h @@ -1,4 +1,4 @@ -/* $Id: tif_predict.h,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_predict.h,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1995-1997 Sam Leffler @@ -40,10 +40,16 @@ typedef struct { int stride; /* sample stride over data */ tsize_t rowsize; /* tile/strip row size */ - TIFFPostMethod pfunc; /* horizontal differencer/accumulator */ - TIFFCodeMethod coderow; /* parent codec encode/decode row */ - TIFFCodeMethod codestrip; /* parent codec encode/decode strip */ - TIFFCodeMethod codetile; /* parent codec encode/decode tile */ + TIFFCodeMethod encoderow; /* parent codec encode/decode row */ + TIFFCodeMethod encodestrip; /* parent codec encode/decode strip */ + TIFFCodeMethod encodetile; /* parent codec encode/decode tile */ + TIFFPostMethod encodepfunc; /* horizontal differencer */ + + TIFFCodeMethod decoderow; /* parent codec encode/decode row */ + TIFFCodeMethod decodestrip; /* parent codec encode/decode strip */ + TIFFCodeMethod decodetile; /* parent codec encode/decode tile */ + TIFFPostMethod decodepfunc; /* horizontal accumulator */ + TIFFVGetMethod vgetparent; /* super-class method */ TIFFVSetMethod vsetparent; /* super-class method */ TIFFPrintMethod printdir; /* super-class method */ diff --git a/src/libtiff/tif_print.c b/src/libtiff/tif_print.c index 01429be..25bdda9 100644 --- a/src/libtiff/tif_print.c +++ b/src/libtiff/tif_print.c @@ -1,4 +1,4 @@ -/* $Id: tif_print.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_print.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -491,7 +491,7 @@ TIFFPrintDirectory(TIFF* tif, FILE* fd, long flags) } else fprintf(fd, "(present)\n"); } - if (TIFFFieldSet(tif, FIELD_SUBIFD)) { + if (TIFFFieldSet(tif, FIELD_SUBIFD) && (td->td_subifd)) { fprintf(fd, " SubIFD Offsets:"); for (i = 0; i < td->td_nsubifd; i++) fprintf(fd, " %5lu", (long) td->td_subifd[i]); @@ -509,7 +509,7 @@ TIFFPrintDirectory(TIFF* tif, FILE* fd, long flags) for(i = 0; i < count; i++) { ttag_t tag = TIFFGetTagListEntry(tif, i); const TIFFFieldInfo *fip; - uint16 value_count; + uint32 value_count; int mem_alloc = 0; void *raw_data; diff --git a/src/libtiff/tif_read.c b/src/libtiff/tif_read.c index 7bc580e..888e4d7 100644 --- a/src/libtiff/tif_read.c +++ b/src/libtiff/tif_read.c @@ -1,4 +1,4 @@ -/* $Id: tif_read.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_read.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -50,8 +50,10 @@ TIFFSeek(TIFF* tif, uint32 row, tsample_t sample) tstrip_t strip; if (row >= td->td_imagelength) { /* out of range */ - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "%lu: Row out of range, max %lu", - (unsigned long) row, (unsigned long) td->td_imagelength); + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%lu: Row out of range, max %lu", + (unsigned long) row, + (unsigned long) td->td_imagelength); return (0); } if (td->td_planarconfig == PLANARCONFIG_SEPARATE) { @@ -64,7 +66,7 @@ TIFFSeek(TIFF* tif, uint32 row, tsample_t sample) strip = sample*td->td_stripsperimage + row/td->td_rowsperstrip; } else strip = row / td->td_rowsperstrip; - if (strip != tif->tif_curstrip) { /* different strip, refill */ + if (strip != tif->tif_curstrip) { /* different strip, refill */ if (!TIFFFillStrip(tif, strip)) return (0); } else if (row < tif->tif_row) { @@ -104,8 +106,8 @@ TIFFReadScanline(TIFF* tif, tdata_t buf, uint32 row, tsample_t sample) e = (*tif->tif_decoderow) (tif, (tidata_t) buf, tif->tif_scanlinesize, sample); - /* we are now poised at the beginning of the next row */ - tif->tif_row = row + 1; + /* we are now poised at the beginning of the next row */ + tif->tif_row = row + 1; if (e) (*tif->tif_postdecode)(tif, (tidata_t) buf, @@ -129,22 +131,23 @@ TIFFReadEncodedStrip(TIFF* tif, tstrip_t strip, tdata_t buf, tsize_t size) if (!TIFFCheckRead(tif, 0)) return (-1); if (strip >= td->td_nstrips) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "%ld: Strip out of range, max %ld", - (long) strip, (long) td->td_nstrips); + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%ld: Strip out of range, max %ld", + (long) strip, (long) td->td_nstrips); return (-1); } /* * Calculate the strip size according to the number of * rows in the strip (check for truncated last strip on any - * of the separations). + * of the separations). */ - if( td->td_rowsperstrip >= td->td_imagelength ) - strips_per_sep = 1; - else - strips_per_sep = (td->td_imagelength+td->td_rowsperstrip-1) - / td->td_rowsperstrip; + if( td->td_rowsperstrip >= td->td_imagelength ) + strips_per_sep = 1; + else + strips_per_sep = (td->td_imagelength+td->td_rowsperstrip-1) + / td->td_rowsperstrip; - sep_strip = strip % strips_per_sep; + sep_strip = strip % strips_per_sep; if (sep_strip != strips_per_sep-1 || (nrows = td->td_imagelength % td->td_rowsperstrip) == 0) @@ -155,9 +158,9 @@ TIFFReadEncodedStrip(TIFF* tif, tstrip_t strip, tdata_t buf, tsize_t size) size = stripsize; else if (size > stripsize) size = stripsize; - if (TIFFFillStrip(tif, strip) - && (*tif->tif_decodestrip)(tif, (tidata_t) buf, size, - (tsample_t)(strip / td->td_stripsperimage)) > 0 ) { + if (TIFFFillStrip(tif, strip) + && (*tif->tif_decodestrip)(tif, (tidata_t) buf, size, + (tsample_t)(strip / td->td_stripsperimage)) > 0 ) { (*tif->tif_postdecode)(tif, (tidata_t) buf, size); return (size); } else @@ -170,6 +173,7 @@ TIFFReadRawStrip1(TIFF* tif, { TIFFDirectory *td = &tif->tif_dir; + assert((tif->tif_flags&TIFF_NOREADRAW)==0); if (!isMapped(tif)) { tsize_t cc; @@ -215,13 +219,27 @@ TIFFReadRawStrip(TIFF* tif, tstrip_t strip, tdata_t buf, tsize_t size) { static const char module[] = "TIFFReadRawStrip"; TIFFDirectory *td = &tif->tif_dir; - tsize_t bytecount; + /* + * FIXME: butecount should have tsize_t type, but for now libtiff + * defines tsize_t as a signed 32-bit integer and we are losing + * ability to read arrays larger than 2^31 bytes. So we are using + * uint32 instead of tsize_t here. + */ + uint32 bytecount; if (!TIFFCheckRead(tif, 0)) return ((tsize_t) -1); if (strip >= td->td_nstrips) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "%lu: Strip out of range, max %lu", - (unsigned long) strip, (unsigned long) td->td_nstrips); + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%lu: Strip out of range, max %lu", + (unsigned long) strip, + (unsigned long) td->td_nstrips); + return ((tsize_t) -1); + } + if (tif->tif_flags&TIFF_NOREADRAW) + { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Compression scheme does not support access to raw uncompressed data"); return ((tsize_t) -1); } bytecount = td->td_stripbytecount[strip]; @@ -231,88 +249,110 @@ TIFFReadRawStrip(TIFF* tif, tstrip_t strip, tdata_t buf, tsize_t size) (unsigned long) bytecount, (unsigned long) strip); return ((tsize_t) -1); } - if (size != (tsize_t)-1 && size < bytecount) + if (size != (tsize_t)-1 && (uint32)size < bytecount) bytecount = size; return (TIFFReadRawStrip1(tif, strip, buf, bytecount, module)); } /* - * Read the specified strip and setup for decoding. - * The data buffer is expanded, as necessary, to - * hold the strip's data. + * Read the specified strip and setup for decoding. The data buffer is + * expanded, as necessary, to hold the strip's data. */ int TIFFFillStrip(TIFF* tif, tstrip_t strip) { static const char module[] = "TIFFFillStrip"; TIFFDirectory *td = &tif->tif_dir; - tsize_t bytecount; - bytecount = td->td_stripbytecount[strip]; - if (bytecount <= 0) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "%lu: Invalid strip byte count, strip %lu", - (unsigned long) bytecount, (unsigned long) strip); - return (0); - } - if (isMapped(tif) && - (isFillOrder(tif, td->td_fillorder) - || (tif->tif_flags & TIFF_NOBITREV))) { + if ((tif->tif_flags&TIFF_NOREADRAW)==0) + { /* - * The image is mapped into memory and we either don't - * need to flip bits or the compression routine is going - * to handle this operation itself. In this case, avoid - * copying the raw data and instead just reference the - * data from the memory mapped file image. This assumes - * that the decompression routines do not modify the - * contents of the raw data buffer (if they try to, - * the application will get a fault since the file is - * mapped read-only). + * FIXME: butecount should have tsize_t type, but for now + * libtiff defines tsize_t as a signed 32-bit integer and we + * are losing ability to read arrays larger than 2^31 bytes. + * So we are using uint32 instead of tsize_t here. */ - if ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata) - _TIFFfree(tif->tif_rawdata); - tif->tif_flags &= ~TIFF_MYBUFFER; - if ( td->td_stripoffset[strip] + bytecount > tif->tif_size) { - /* - * This error message might seem strange, but it's - * what would happen if a read were done instead. - */ + uint32 bytecount = td->td_stripbytecount[strip]; + if (bytecount <= 0) { TIFFErrorExt(tif->tif_clientdata, module, - "%s: Read error on strip %lu; got %lu bytes, expected %lu", - tif->tif_name, - (unsigned long) strip, - (unsigned long) tif->tif_size - td->td_stripoffset[strip], - (unsigned long) bytecount); - tif->tif_curstrip = NOSTRIP; + "%s: Invalid strip byte count %lu, strip %lu", + tif->tif_name, (unsigned long) bytecount, + (unsigned long) strip); return (0); } - tif->tif_rawdatasize = bytecount; - tif->tif_rawdata = tif->tif_base + td->td_stripoffset[strip]; - } else { - /* - * Expand raw data buffer, if needed, to - * hold data strip coming from file - * (perhaps should set upper bound on - * the size of a buffer we'll use?). - */ - if (bytecount > tif->tif_rawdatasize) { - tif->tif_curstrip = NOSTRIP; - if ((tif->tif_flags & TIFF_MYBUFFER) == 0) { + if (isMapped(tif) && + (isFillOrder(tif, td->td_fillorder) + || (tif->tif_flags & TIFF_NOBITREV))) { + /* + * The image is mapped into memory and we either don't + * need to flip bits or the compression routine is + * going to handle this operation itself. In this + * case, avoid copying the raw data and instead just + * reference the data from the memory mapped file + * image. This assumes that the decompression + * routines do not modify the contents of the raw data + * buffer (if they try to, the application will get a + * fault since the file is mapped read-only). + */ + if ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata) + _TIFFfree(tif->tif_rawdata); + tif->tif_flags &= ~TIFF_MYBUFFER; + /* + * We must check for overflow, potentially causing + * an OOB read. Instead of simple + * + * td->td_stripoffset[strip]+bytecount > tif->tif_size + * + * comparison (which can overflow) we do the following + * two comparisons: + */ + if (bytecount > tif->tif_size || + td->td_stripoffset[strip] > tif->tif_size - bytecount) { + /* + * This error message might seem strange, but + * it's what would happen if a read were done + * instead. + */ TIFFErrorExt(tif->tif_clientdata, module, - "%s: Data buffer too small to hold strip %lu", - tif->tif_name, (unsigned long) strip); + + "%s: Read error on strip %lu; " + "got %lu bytes, expected %lu", + tif->tif_name, (unsigned long) strip, + (unsigned long) tif->tif_size - td->td_stripoffset[strip], + (unsigned long) bytecount); + tif->tif_curstrip = NOSTRIP; return (0); } - if (!TIFFReadBufferSetup(tif, 0, - TIFFroundup(bytecount, 1024))) + tif->tif_rawdatasize = bytecount; + tif->tif_rawdata = tif->tif_base + td->td_stripoffset[strip]; + } else { + /* + * Expand raw data buffer, if needed, to hold data + * strip coming from file (perhaps should set upper + * bound on the size of a buffer we'll use?). + */ + if (bytecount > (uint32)tif->tif_rawdatasize) { + tif->tif_curstrip = NOSTRIP; + if ((tif->tif_flags & TIFF_MYBUFFER) == 0) { + TIFFErrorExt(tif->tif_clientdata, + module, + "%s: Data buffer too small to hold strip %lu", + tif->tif_name, + (unsigned long) strip); + return (0); + } + if (!TIFFReadBufferSetup(tif, 0, + TIFFroundup(bytecount, 1024))) + return (0); + } + if ((uint32)TIFFReadRawStrip1(tif, strip, + (unsigned char *)tif->tif_rawdata, + bytecount, module) != bytecount) return (0); + if (!isFillOrder(tif, td->td_fillorder) && + (tif->tif_flags & TIFF_NOBITREV) == 0) + TIFFReverseBits(tif->tif_rawdata, bytecount); } - if (TIFFReadRawStrip1(tif, strip, (unsigned char *)tif->tif_rawdata, - bytecount, module) != bytecount) - return (0); - if (!isFillOrder(tif, td->td_fillorder) && - (tif->tif_flags & TIFF_NOBITREV) == 0) - TIFFReverseBits(tif->tif_rawdata, bytecount); } return (TIFFStartStrip(tif, strip)); } @@ -349,8 +389,9 @@ TIFFReadEncodedTile(TIFF* tif, ttile_t tile, tdata_t buf, tsize_t size) if (!TIFFCheckRead(tif, 1)) return (-1); if (tile >= td->td_nstrips) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "%ld: Tile out of range, max %ld", - (long) tile, (unsigned long) td->td_nstrips); + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%ld: Tile out of range, max %ld", + (long) tile, (unsigned long) td->td_nstrips); return (-1); } if (size == (tsize_t) -1) @@ -371,6 +412,7 @@ TIFFReadRawTile1(TIFF* tif, { TIFFDirectory *td = &tif->tif_dir; + assert((tif->tif_flags&TIFF_NOREADRAW)==0); if (!isMapped(tif)) { tsize_t cc; @@ -419,89 +461,121 @@ TIFFReadRawTile(TIFF* tif, ttile_t tile, tdata_t buf, tsize_t size) { static const char module[] = "TIFFReadRawTile"; TIFFDirectory *td = &tif->tif_dir; - tsize_t bytecount; + /* + * FIXME: butecount should have tsize_t type, but for now libtiff + * defines tsize_t as a signed 32-bit integer and we are losing + * ability to read arrays larger than 2^31 bytes. So we are using + * uint32 instead of tsize_t here. + */ + uint32 bytecount; if (!TIFFCheckRead(tif, 1)) return ((tsize_t) -1); if (tile >= td->td_nstrips) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "%lu: Tile out of range, max %lu", + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%lu: Tile out of range, max %lu", (unsigned long) tile, (unsigned long) td->td_nstrips); return ((tsize_t) -1); } + if (tif->tif_flags&TIFF_NOREADRAW) + { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Compression scheme does not support access to raw uncompressed data"); + return ((tsize_t) -1); + } bytecount = td->td_stripbytecount[tile]; - if (size != (tsize_t) -1 && size < bytecount) + if (size != (tsize_t) -1 && (uint32)size < bytecount) bytecount = size; return (TIFFReadRawTile1(tif, tile, buf, bytecount, module)); } /* - * Read the specified tile and setup for decoding. - * The data buffer is expanded, as necessary, to - * hold the tile's data. + * Read the specified tile and setup for decoding. The data buffer is + * expanded, as necessary, to hold the tile's data. */ int TIFFFillTile(TIFF* tif, ttile_t tile) { static const char module[] = "TIFFFillTile"; TIFFDirectory *td = &tif->tif_dir; - tsize_t bytecount; - bytecount = td->td_stripbytecount[tile]; - if (bytecount <= 0) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "%lu: Invalid tile byte count, tile %lu", - (unsigned long) bytecount, (unsigned long) tile); - return (0); - } - if (isMapped(tif) && - (isFillOrder(tif, td->td_fillorder) - || (tif->tif_flags & TIFF_NOBITREV))) { + if ((tif->tif_flags&TIFF_NOREADRAW)==0) + { /* - * The image is mapped into memory and we either don't - * need to flip bits or the compression routine is going - * to handle this operation itself. In this case, avoid - * copying the raw data and instead just reference the - * data from the memory mapped file image. This assumes - * that the decompression routines do not modify the - * contents of the raw data buffer (if they try to, - * the application will get a fault since the file is - * mapped read-only). + * FIXME: butecount should have tsize_t type, but for now + * libtiff defines tsize_t as a signed 32-bit integer and we + * are losing ability to read arrays larger than 2^31 bytes. + * So we are using uint32 instead of tsize_t here. */ - if ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata) - _TIFFfree(tif->tif_rawdata); - tif->tif_flags &= ~TIFF_MYBUFFER; - if ( td->td_stripoffset[tile] + bytecount > tif->tif_size) { - tif->tif_curtile = NOTILE; + uint32 bytecount = td->td_stripbytecount[tile]; + if (bytecount <= 0) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%lu: Invalid tile byte count, tile %lu", + (unsigned long) bytecount, (unsigned long) tile); return (0); } - tif->tif_rawdatasize = bytecount; - tif->tif_rawdata = tif->tif_base + td->td_stripoffset[tile]; - } else { - /* - * Expand raw data buffer, if needed, to - * hold data tile coming from file - * (perhaps should set upper bound on - * the size of a buffer we'll use?). - */ - if (bytecount > tif->tif_rawdatasize) { - tif->tif_curtile = NOTILE; - if ((tif->tif_flags & TIFF_MYBUFFER) == 0) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Data buffer too small to hold tile %ld", - tif->tif_name, (long) tile); + if (isMapped(tif) && + (isFillOrder(tif, td->td_fillorder) + || (tif->tif_flags & TIFF_NOBITREV))) { + /* + * The image is mapped into memory and we either don't + * need to flip bits or the compression routine is + * going to handle this operation itself. In this + * case, avoid copying the raw data and instead just + * reference the data from the memory mapped file + * image. This assumes that the decompression + * routines do not modify the contents of the raw data + * buffer (if they try to, the application will get a + * fault since the file is mapped read-only). + */ + if ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata) + _TIFFfree(tif->tif_rawdata); + tif->tif_flags &= ~TIFF_MYBUFFER; + /* + * We must check for overflow, potentially causing + * an OOB read. Instead of simple + * + * td->td_stripoffset[tile]+bytecount > tif->tif_size + * + * comparison (which can overflow) we do the following + * two comparisons: + */ + if (bytecount > tif->tif_size || + td->td_stripoffset[tile] > tif->tif_size - bytecount) { + tif->tif_curtile = NOTILE; return (0); } - if (!TIFFReadBufferSetup(tif, 0, - TIFFroundup(bytecount, 1024))) + tif->tif_rawdatasize = bytecount; + tif->tif_rawdata = + tif->tif_base + td->td_stripoffset[tile]; + } else { + /* + * Expand raw data buffer, if needed, to hold data + * tile coming from file (perhaps should set upper + * bound on the size of a buffer we'll use?). + */ + if (bytecount > (uint32)tif->tif_rawdatasize) { + tif->tif_curtile = NOTILE; + if ((tif->tif_flags & TIFF_MYBUFFER) == 0) { + TIFFErrorExt(tif->tif_clientdata, + module, + "%s: Data buffer too small to hold tile %ld", + tif->tif_name, + (long) tile); + return (0); + } + if (!TIFFReadBufferSetup(tif, 0, + TIFFroundup(bytecount, 1024))) + return (0); + } + if ((uint32)TIFFReadRawTile1(tif, tile, + (unsigned char *)tif->tif_rawdata, + bytecount, module) != bytecount) return (0); + if (!isFillOrder(tif, td->td_fillorder) && + (tif->tif_flags & TIFF_NOBITREV) == 0) + TIFFReverseBits(tif->tif_rawdata, bytecount); } - if (TIFFReadRawTile1(tif, tile, - (unsigned char *)tif->tif_rawdata, - bytecount, module) != bytecount) - return (0); - if (!isFillOrder(tif, td->td_fillorder) && - (tif->tif_flags & TIFF_NOBITREV) == 0) - TIFFReverseBits(tif->tif_rawdata, bytecount); } return (TIFFStartTile(tif, tile)); } @@ -520,6 +594,7 @@ TIFFReadBufferSetup(TIFF* tif, tdata_t bp, tsize_t size) { static const char module[] = "TIFFReadBufferSetup"; + assert((tif->tif_flags&TIFF_NOREADRAW)==0); if (tif->tif_rawdata) { if (tif->tif_flags & TIFF_MYBUFFER) _TIFFfree(tif->tif_rawdata); @@ -560,8 +635,16 @@ TIFFStartStrip(TIFF* tif, tstrip_t strip) } tif->tif_curstrip = strip; tif->tif_row = (strip % td->td_stripsperimage) * td->td_rowsperstrip; - tif->tif_rawcp = tif->tif_rawdata; - tif->tif_rawcc = td->td_stripbytecount[strip]; + if (tif->tif_flags&TIFF_NOREADRAW) + { + tif->tif_rawcp = NULL; + tif->tif_rawcc = 0; + } + else + { + tif->tif_rawcp = tif->tif_rawdata; + tif->tif_rawcc = td->td_stripbytecount[strip]; + } return ((*tif->tif_predecode)(tif, (tsample_t)(strip / td->td_stripsperimage))); } @@ -587,8 +670,16 @@ TIFFStartTile(TIFF* tif, ttile_t tile) tif->tif_col = (tile % TIFFhowmany(td->td_imagelength, td->td_tilelength)) * td->td_tilewidth; - tif->tif_rawcp = tif->tif_rawdata; - tif->tif_rawcc = td->td_stripbytecount[tile]; + if (tif->tif_flags&TIFF_NOREADRAW) + { + tif->tif_rawcp = NULL; + tif->tif_rawcc = 0; + } + else + { + tif->tif_rawcp = tif->tif_rawdata; + tif->tif_rawcc = td->td_stripbytecount[tile]; + } return ((*tif->tif_predecode)(tif, (tsample_t)(tile/td->td_stripsperimage))); } diff --git a/src/libtiff/tif_strip.c b/src/libtiff/tif_strip.c index e6a0fb7..9eaa98e 100644 --- a/src/libtiff/tif_strip.c +++ b/src/libtiff/tif_strip.c @@ -1,4 +1,4 @@ -/* $Id: tif_strip.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_strip.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1991-1997 Sam Leffler @@ -121,12 +121,12 @@ TIFFVStripSize(TIFF* tif, uint32 nrows) * horizontal/vertical subsampling area include * YCbCr data for the extended image. */ - uint16 ycbcrsubsampling[2]; - tsize_t w, scanline, samplingarea; + uint16 ycbcrsubsampling[2]; + tsize_t w, scanline, samplingarea; - TIFFGetField( tif, TIFFTAG_YCBCRSUBSAMPLING, - ycbcrsubsampling + 0, - ycbcrsubsampling + 1 ); + TIFFGetField( tif, TIFFTAG_YCBCRSUBSAMPLING, + ycbcrsubsampling + 0, + ycbcrsubsampling + 1 ); samplingarea = ycbcrsubsampling[0]*ycbcrsubsampling[1]; if (samplingarea == 0) { @@ -228,13 +228,13 @@ TIFFScanlineSize(TIFF* tif) { TIFFDirectory *td = &tif->tif_dir; tsize_t scanline; - + if (td->td_planarconfig == PLANARCONFIG_CONTIG) { if (td->td_photometric == PHOTOMETRIC_YCBCR && !isUpSampled(tif)) { uint16 ycbcrsubsampling[2]; - TIFFGetField(tif, TIFFTAG_YCBCRSUBSAMPLING, + TIFFGetField(tif, TIFFTAG_YCBCRSUBSAMPLING, ycbcrsubsampling + 0, ycbcrsubsampling + 1); @@ -268,6 +268,75 @@ TIFFScanlineSize(TIFF* tif) } /* + * Some stuff depends on this older version of TIFFScanlineSize + * TODO: resolve this + */ +tsize_t +TIFFOldScanlineSize(TIFF* tif) +{ + TIFFDirectory *td = &tif->tif_dir; + tsize_t scanline; + + scanline = multiply (tif, td->td_bitspersample, td->td_imagewidth, + "TIFFScanlineSize"); + if (td->td_planarconfig == PLANARCONFIG_CONTIG) + scanline = multiply (tif, scanline, td->td_samplesperpixel, + "TIFFScanlineSize"); + return ((tsize_t) TIFFhowmany8(scanline)); +} + +/* + * Return the number of bytes to read/write in a call to + * one of the scanline-oriented i/o routines. Note that + * this number may be 1/samples-per-pixel if data is + * stored as separate planes. + * The ScanlineSize in case of YCbCrSubsampling is defined as the + * strip size divided by the strip height, i.e. the size of a pack of vertical + * subsampling lines divided by vertical subsampling. It should thus make + * sense when multiplied by a multiple of vertical subsampling. + * Some stuff depends on this newer version of TIFFScanlineSize + * TODO: resolve this + */ +tsize_t +TIFFNewScanlineSize(TIFF* tif) +{ + TIFFDirectory *td = &tif->tif_dir; + tsize_t scanline; + + if (td->td_planarconfig == PLANARCONFIG_CONTIG) { + if (td->td_photometric == PHOTOMETRIC_YCBCR + && !isUpSampled(tif)) { + uint16 ycbcrsubsampling[2]; + + TIFFGetField(tif, TIFFTAG_YCBCRSUBSAMPLING, + ycbcrsubsampling + 0, + ycbcrsubsampling + 1); + + if (ycbcrsubsampling[0]*ycbcrsubsampling[1] == 0) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Invalid YCbCr subsampling"); + return 0; + } + + return((tsize_t) ((((td->td_imagewidth+ycbcrsubsampling[0]-1) + /ycbcrsubsampling[0]) + *(ycbcrsubsampling[0]*ycbcrsubsampling[1]+2) + *td->td_bitspersample+7) + /8)/ycbcrsubsampling[1]); + + } else { + scanline = multiply(tif, td->td_imagewidth, + td->td_samplesperpixel, + "TIFFScanlineSize"); + } + } else + scanline = td->td_imagewidth; + return ((tsize_t) TIFFhowmany8(multiply(tif, scanline, + td->td_bitspersample, + "TIFFScanlineSize"))); +} + +/* * Return the number of bytes required to store a complete * decoded and packed raster scanline (as opposed to the * I/O size returned by TIFFScanlineSize which may be less diff --git a/src/libtiff/tif_swab.c b/src/libtiff/tif_swab.c index f8e977e..7cf2e2f 100644 --- a/src/libtiff/tif_swab.c +++ b/src/libtiff/tif_swab.c @@ -1,4 +1,4 @@ -/* $Id: tif_swab.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_swab.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler diff --git a/src/libtiff/tif_thunder.c b/src/libtiff/tif_thunder.c index 40f0618..8befaf3 100644 --- a/src/libtiff/tif_thunder.c +++ b/src/libtiff/tif_thunder.c @@ -1,4 +1,4 @@ -/* $Id: tif_thunder.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_thunder.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler diff --git a/src/libtiff/tif_tile.c b/src/libtiff/tif_tile.c index 4d90e11..c11fb49 100644 --- a/src/libtiff/tif_tile.c +++ b/src/libtiff/tif_tile.c @@ -1,4 +1,4 @@ -/* $Id: tif_tile.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_tile.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1991-1997 Sam Leffler diff --git a/src/libtiff/tif_version.c b/src/libtiff/tif_version.c index c0f25bf..e4b210a 100644 --- a/src/libtiff/tif_version.c +++ b/src/libtiff/tif_version.c @@ -1,4 +1,4 @@ -/* $Header: /cvsroot/imtoolkit/im/src/libtiff/tif_version.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Header: /cvsroot/imtoolkit/im/src/libtiff/tif_version.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1992-1997 Sam Leffler * Copyright (c) 1992-1997 Silicon Graphics, Inc. diff --git a/src/libtiff/tif_warning.c b/src/libtiff/tif_warning.c index cb9d53f..30f7c40 100644 --- a/src/libtiff/tif_warning.c +++ b/src/libtiff/tif_warning.c @@ -1,4 +1,4 @@ -/* $Header: /cvsroot/imtoolkit/im/src/libtiff/tif_warning.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Header: /cvsroot/imtoolkit/im/src/libtiff/tif_warning.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler diff --git a/src/libtiff/tif_write.c b/src/libtiff/tif_write.c index a07606f..0d589b5 100644 --- a/src/libtiff/tif_write.c +++ b/src/libtiff/tif_write.c @@ -1,4 +1,4 @@ -/* $Id: tif_write.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_write.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -227,10 +227,8 @@ TIFFWriteEncodedStrip(TIFF* tif, tstrip_t strip, tdata_t data, tsize_t cc) if( td->td_stripbytecount[strip] > 0 ) { - /* if we are writing over existing tiles, zero length. */ - td->td_stripbytecount[strip] = 0; - - /* this forces TIFFAppendToStrip() to do a seek */ + /* Force TIFFAppendToStrip() to consider placing data at end + of file. */ tif->tif_curoff = 0; } @@ -363,10 +361,8 @@ TIFFWriteEncodedTile(TIFF* tif, ttile_t tile, tdata_t data, tsize_t cc) if( td->td_stripbytecount[tile] > 0 ) { - /* if we are writing over existing tiles, zero length. */ - td->td_stripbytecount[tile] = 0; - - /* this forces TIFFAppendToStrip() to do a seek */ + /* Force TIFFAppendToStrip() to consider placing data at end + of file. */ tif->tif_curoff = 0; } @@ -521,7 +517,8 @@ TIFFWriteCheck(TIFF* tif, int tiles, const char* module) * because this field is used in other parts of library even * in the single band case. */ - tif->tif_dir.td_planarconfig = PLANARCONFIG_CONTIG; + if (!TIFFFieldSet(tif, FIELD_PLANARCONFIG)) + tif->tif_dir.td_planarconfig = PLANARCONFIG_CONTIG; } else { if (!TIFFFieldSet(tif, FIELD_PLANARCONFIG)) { TIFFErrorExt(tif->tif_clientdata, module, @@ -625,64 +622,53 @@ TIFFGrowStrips(TIFF* tif, int delta, const char* module) static int TIFFAppendToStrip(TIFF* tif, tstrip_t strip, tidata_t data, tsize_t cc) { - TIFFDirectory *td = &tif->tif_dir; static const char module[] = "TIFFAppendToStrip"; + TIFFDirectory *td = &tif->tif_dir; if (td->td_stripoffset[strip] == 0 || tif->tif_curoff == 0) { - /* - * No current offset, set the current strip. - */ - assert(td->td_nstrips > 0); - if (td->td_stripoffset[strip] != 0) { - /* - * Prevent overlapping of the data chunks. We need - * this to enable in place updating of the compressed - * images. Larger blocks will be moved at the end of - * the file without any optimization of the spare - * space, so such scheme is not too much effective. - */ - if (td->td_stripbytecountsorted) { - if (strip == td->td_nstrips - 1 - || td->td_stripoffset[strip + 1] < - td->td_stripoffset[strip] + cc) { - td->td_stripoffset[strip] = - TIFFSeekFile(tif, (toff_t)0, - SEEK_END); - } - } else { - tstrip_t i; - for (i = 0; i < td->td_nstrips; i++) { - if (td->td_stripoffset[i] > - td->td_stripoffset[strip] - && td->td_stripoffset[i] < - td->td_stripoffset[strip] + cc) { - td->td_stripoffset[strip] = - TIFFSeekFile(tif, - (toff_t)0, - SEEK_END); - } - } - } - - if (!SeekOK(tif, td->td_stripoffset[strip])) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Seek error at scanline %lu", - tif->tif_name, - (unsigned long)tif->tif_row); - return (0); - } - } else - td->td_stripoffset[strip] = - TIFFSeekFile(tif, (toff_t) 0, SEEK_END); - tif->tif_curoff = td->td_stripoffset[strip]; + assert(td->td_nstrips > 0); + + if( td->td_stripbytecount[strip] != 0 + && td->td_stripoffset[strip] != 0 + && (tsize_t) td->td_stripbytecount[strip] >= cc ) + { + /* + * There is already tile data on disk, and the new tile + * data we have to will fit in the same space. The only + * aspect of this that is risky is that there could be + * more data to append to this strip before we are done + * depending on how we are getting called. + */ + if (!SeekOK(tif, td->td_stripoffset[strip])) { + TIFFErrorExt(tif->tif_clientdata, module, + "Seek error at scanline %lu", + (unsigned long)tif->tif_row); + return (0); + } + } + else + { + /* + * Seek to end of file, and set that as our location to + * write this strip. + */ + td->td_stripoffset[strip] = TIFFSeekFile(tif, 0, SEEK_END); + } + + tif->tif_curoff = td->td_stripoffset[strip]; + + /* + * We are starting a fresh strip/tile, so set the size to zero. + */ + td->td_stripbytecount[strip] = 0; } if (!WriteOK(tif, data, cc)) { - TIFFErrorExt(tif->tif_clientdata, module, "%s: Write error at scanline %lu", - tif->tif_name, (unsigned long) tif->tif_row); - return (0); + TIFFErrorExt(tif->tif_clientdata, module, "Write error at scanline %lu", + (unsigned long) tif->tif_row); + return (0); } - tif->tif_curoff += cc; + tif->tif_curoff = tif->tif_curoff+cc; td->td_stripbytecount[strip] += cc; return (1); } diff --git a/src/libtiff/tif_zip.c b/src/libtiff/tif_zip.c index 41781f8..a55e73f 100644 --- a/src/libtiff/tif_zip.c +++ b/src/libtiff/tif_zip.c @@ -1,4 +1,4 @@ -/* $Id: tif_zip.c,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tif_zip.c,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1995-1997 Sam Leffler @@ -70,7 +70,8 @@ typedef struct { z_stream stream; int zipquality; /* compression level */ int state; /* state flags */ -#define ZSTATE_INIT 0x1 /* zlib setup successfully */ +#define ZSTATE_INIT_DECODE 0x01 +#define ZSTATE_INIT_ENCODE 0x02 TIFFVGetMethod vgetparent; /* super-class method */ TIFFVSetMethod vsetparent; /* super-class method */ @@ -90,11 +91,18 @@ ZIPSetupDecode(TIFF* tif) static const char module[] = "ZIPSetupDecode"; assert(sp != NULL); + + /* if we were last encoding, terminate this mode */ + if (sp->state & ZSTATE_INIT_ENCODE) { + deflateEnd(&sp->stream); + sp->state = 0; + } + if (inflateInit(&sp->stream) != Z_OK) { TIFFErrorExt(tif->tif_clientdata, module, "%s: %s", tif->tif_name, sp->stream.msg); return (0); } else { - sp->state |= ZSTATE_INIT; + sp->state |= ZSTATE_INIT_DECODE; return (1); } } @@ -109,6 +117,10 @@ ZIPPreDecode(TIFF* tif, tsample_t s) (void) s; assert(sp != NULL); + + if( (sp->state & ZSTATE_INIT_DECODE) == 0 ) + tif->tif_setupdecode( tif ); + sp->stream.next_in = tif->tif_rawdata; sp->stream.avail_in = tif->tif_rawcc; return (inflateReset(&sp->stream) == Z_OK); @@ -122,6 +134,8 @@ ZIPDecode(TIFF* tif, tidata_t op, tsize_t occ, tsample_t s) (void) s; assert(sp != NULL); + assert(sp->state == ZSTATE_INIT_DECODE); + sp->stream.next_out = op; sp->stream.avail_out = occ; do { @@ -158,11 +172,16 @@ ZIPSetupEncode(TIFF* tif) static const char module[] = "ZIPSetupEncode"; assert(sp != NULL); + if (sp->state & ZSTATE_INIT_DECODE) { + inflateEnd(&sp->stream); + sp->state = 0; + } + if (deflateInit(&sp->stream, sp->zipquality) != Z_OK) { TIFFErrorExt(tif->tif_clientdata, module, "%s: %s", tif->tif_name, sp->stream.msg); return (0); } else { - sp->state |= ZSTATE_INIT; + sp->state |= ZSTATE_INIT_ENCODE; return (1); } } @@ -177,6 +196,9 @@ ZIPPreEncode(TIFF* tif, tsample_t s) (void) s; assert(sp != NULL); + if( sp->state != ZSTATE_INIT_ENCODE ) + tif->tif_setupencode( tif ); + sp->stream.next_out = tif->tif_rawdata; sp->stream.avail_out = tif->tif_rawdatasize; return (deflateReset(&sp->stream) == Z_OK); @@ -191,6 +213,9 @@ ZIPEncode(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) ZIPState *sp = EncoderState(tif); static const char module[] = "ZIPEncode"; + assert(sp != NULL); + assert(sp->state == ZSTATE_INIT_ENCODE); + (void) s; sp->stream.next_in = bp; sp->stream.avail_in = cc; @@ -257,12 +282,12 @@ ZIPCleanup(TIFF* tif) tif->tif_tagmethods.vgetfield = sp->vgetparent; tif->tif_tagmethods.vsetfield = sp->vsetparent; - if (sp->state&ZSTATE_INIT) { - /* NB: avoid problems in the library */ - if (tif->tif_mode == O_RDONLY) - inflateEnd(&sp->stream); - else - deflateEnd(&sp->stream); + if (sp->state & ZSTATE_INIT_ENCODE) { + deflateEnd(&sp->stream); + sp->state = 0; + } else if( sp->state & ZSTATE_INIT_DECODE) { + inflateEnd(&sp->stream); + sp->state = 0; } _TIFFfree(sp); tif->tif_data = NULL; @@ -279,7 +304,7 @@ ZIPVSetField(TIFF* tif, ttag_t tag, va_list ap) switch (tag) { case TIFFTAG_ZIPQUALITY: sp->zipquality = va_arg(ap, int); - if (tif->tif_mode != O_RDONLY && (sp->state&ZSTATE_INIT)) { + if ( sp->state&ZSTATE_INIT_ENCODE ) { if (deflateParams(&sp->stream, sp->zipquality, Z_DEFAULT_STRATEGY) != Z_OK) { TIFFErrorExt(tif->tif_clientdata, module, "%s: zlib error: %s", @@ -317,12 +342,23 @@ static const TIFFFieldInfo zipFieldInfo[] = { int TIFFInitZIP(TIFF* tif, int scheme) { + static const char module[] = "TIFFInitZIP"; ZIPState* sp; assert( (scheme == COMPRESSION_DEFLATE) || (scheme == COMPRESSION_ADOBE_DEFLATE)); /* + * Merge codec-specific tag information. + */ + if (!_TIFFMergeFieldInfo(tif, zipFieldInfo, + TIFFArrayCount(zipFieldInfo))) { + TIFFErrorExt(tif->tif_clientdata, module, + "Merging Deflate codec-specific tags failed"); + return 0; + } + + /* * Allocate state block so tag methods have storage to record values. */ tif->tif_data = (tidata_t) _TIFFmalloc(sizeof (ZIPState)); @@ -335,10 +371,8 @@ TIFFInitZIP(TIFF* tif, int scheme) sp->stream.data_type = Z_BINARY; /* - * Merge codec-specific tag information and - * override parent get/set field methods. + * Override parent get/set field methods. */ - _TIFFMergeFieldInfo(tif, zipFieldInfo, TIFFArrayCount(zipFieldInfo)); sp->vgetparent = tif->tif_tagmethods.vgetfield; tif->tif_tagmethods.vgetfield = ZIPVGetField; /* hook for codec tags */ sp->vsetparent = tif->tif_tagmethods.vsetfield; @@ -369,7 +403,7 @@ TIFFInitZIP(TIFF* tif, int scheme) (void) TIFFPredictorInit(tif); return (1); bad: - TIFFErrorExt(tif->tif_clientdata, "TIFFInitZIP", + TIFFErrorExt(tif->tif_clientdata, module, "No space for ZIP state block"); return (0); } diff --git a/src/libtiff/tiff.h b/src/libtiff/tiff.h index 0697268..b258f25 100644 --- a/src/libtiff/tiff.h +++ b/src/libtiff/tiff.h @@ -1,4 +1,4 @@ -/* $Id: tiff.h,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tiff.h,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -43,7 +43,7 @@ * (http://partners.adobe.com/asn/developer/PDFS/TN/TIFF6.pdf) * * For Big TIFF design notes see the following link - * http://gdal.maptools.org/twiki/bin/view/libtiff/BigTIFFDesign + * http://www.remotesensing.org/libtiff/bigtiffdesign.html */ #define TIFF_VERSION 42 #define TIFF_BIGTIFF_VERSION 43 diff --git a/src/libtiff/tiffio.h b/src/libtiff/tiffio.h index 3a5eebd..3cfcb22 100644 --- a/src/libtiff/tiffio.h +++ b/src/libtiff/tiffio.h @@ -1,4 +1,4 @@ -/* $Id: tiffio.h,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tiffio.h,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -58,14 +58,15 @@ typedef struct tiff TIFF; * 32-bit file offsets being the most important, and to ensure * that it is unsigned, rather than signed. */ -typedef uint32 ttag_t; /* directory tag */ -typedef uint16 tdir_t; /* directory index */ -typedef uint16 tsample_t; /* sample number */ -typedef uint32 tstrip_t; /* strip number */ -typedef uint32 ttile_t; /* tile number */ -typedef int32 tsize_t; /* i/o size in bytes */ -typedef void* tdata_t; /* image data ref */ -typedef uint32 toff_t; /* file offset */ +typedef uint32 ttag_t; /* directory tag */ +typedef uint16 tdir_t; /* directory index */ +typedef uint16 tsample_t; /* sample number */ +typedef uint32 tstrile_t; /* strip or tile number */ +typedef tstrile_t tstrip_t; /* strip number */ +typedef tstrile_t ttile_t; /* tile number */ +typedef int32 tsize_t; /* i/o size in bytes */ +typedef void* tdata_t; /* image data ref */ +typedef uint32 toff_t; /* file offset */ #if !defined(__WIN32__) && (defined(_WIN32) || defined(WIN32)) #define __WIN32__ @@ -96,10 +97,6 @@ typedef HFILE thandle_t; /* client data handle */ typedef void* thandle_t; /* client data handle */ #endif /* USE_WIN32_FILEIO */ -#ifndef NULL -# define NULL (void *)0 -#endif - /* * Flags to pass to TIFFPrintDirectory to control * printing of data structures that are potentially @@ -191,35 +188,36 @@ typedef void (*tileSeparateRoutine) * RGBA-reader state. */ struct _TIFFRGBAImage { - TIFF* tif; /* image handle */ - int stoponerr; /* stop on read error */ - int isContig; /* data is packed/separate */ - int alpha; /* type of alpha data present */ - uint32 width; /* image width */ - uint32 height; /* image height */ - uint16 bitspersample; /* image bits/sample */ - uint16 samplesperpixel; /* image samples/pixel */ - uint16 orientation; /* image orientation */ - uint16 req_orientation; /* requested orientation */ - uint16 photometric; /* image photometric interp */ - uint16* redcmap; /* colormap pallete */ - uint16* greencmap; - uint16* bluecmap; - /* get image data routine */ - int (*get)(TIFFRGBAImage*, uint32*, uint32, uint32); + TIFF* tif; /* image handle */ + int stoponerr; /* stop on read error */ + int isContig; /* data is packed/separate */ + int alpha; /* type of alpha data present */ + uint32 width; /* image width */ + uint32 height; /* image height */ + uint16 bitspersample; /* image bits/sample */ + uint16 samplesperpixel; /* image samples/pixel */ + uint16 orientation; /* image orientation */ + uint16 req_orientation; /* requested orientation */ + uint16 photometric; /* image photometric interp */ + uint16* redcmap; /* colormap pallete */ + uint16* greencmap; + uint16* bluecmap; + /* get image data routine */ + int (*get)(TIFFRGBAImage*, uint32*, uint32, uint32); + /* put decoded strip/tile */ union { void (*any)(TIFFRGBAImage*); - tileContigRoutine contig; - tileSeparateRoutine separate; - } put; /* put decoded strip/tile */ - TIFFRGBValue* Map; /* sample mapping array */ - uint32** BWmap; /* black&white map */ - uint32** PALmap; /* palette image map */ - TIFFYCbCrToRGB* ycbcr; /* YCbCr conversion state */ - TIFFCIELabToRGB* cielab; /* CIE L*a*b conversion state */ - - int row_offset; - int col_offset; + tileContigRoutine contig; + tileSeparateRoutine separate; + } put; + TIFFRGBValue* Map; /* sample mapping array */ + uint32** BWmap; /* black&white map */ + uint32** PALmap; /* palette image map */ + TIFFYCbCrToRGB* ycbcr; /* YCbCr conversion state */ + TIFFCIELabToRGB* cielab; /* CIE L*a*b conversion state */ + + int row_offset; + int col_offset; }; /* @@ -253,6 +251,10 @@ typedef struct { #define LOGLUV_PUBLIC 1 #endif +#if !defined(__GNUC__) && !defined(__attribute__) +# define __attribute__(x) /*nothing*/ +#endif + #if defined(c_plusplus) || defined(__cplusplus) extern "C" { #endif @@ -349,6 +351,8 @@ extern int TIFFReadCustomDirectory(TIFF*, toff_t, const TIFFFieldInfo[], size_t); extern int TIFFReadEXIFDirectory(TIFF*, toff_t); extern tsize_t TIFFScanlineSize(TIFF*); +extern tsize_t TIFFOldScanlineSize(TIFF*); +extern tsize_t TIFFNewScanlineSize(TIFF*); extern tsize_t TIFFRasterScanlineSize(TIFF*); extern tsize_t TIFFStripSize(TIFF*); extern tsize_t TIFFRawStripSize(TIFF*, tstrip_t); @@ -433,10 +437,10 @@ extern TIFF* TIFFClientOpen(const char*, const char*, TIFFMapFileProc, TIFFUnmapFileProc); extern const char* TIFFFileName(TIFF*); extern const char* TIFFSetFileName(TIFF*, const char *); -extern void TIFFError(const char*, const char*, ...); -extern void TIFFErrorExt(thandle_t, const char*, const char*, ...); -extern void TIFFWarning(const char*, const char*, ...); -extern void TIFFWarningExt(thandle_t, const char*, const char*, ...); +extern void TIFFError(const char*, const char*, ...) __attribute__((format (printf,2,3))); +extern void TIFFErrorExt(thandle_t, const char*, const char*, ...) __attribute__((format (printf,3,4))); +extern void TIFFWarning(const char*, const char*, ...) __attribute__((format (printf,2,3))); +extern void TIFFWarningExt(thandle_t, const char*, const char*, ...) __attribute__((format (printf,3,4))); extern TIFFErrorHandler TIFFSetErrorHandler(TIFFErrorHandler); extern TIFFErrorHandlerExt TIFFSetErrorHandlerExt(TIFFErrorHandlerExt); extern TIFFErrorHandler TIFFSetWarningHandler(TIFFErrorHandler); diff --git a/src/libtiff/tiffiop.h b/src/libtiff/tiffiop.h index a0e5856..dcf9a63 100644 --- a/src/libtiff/tiffiop.h +++ b/src/libtiff/tiffiop.h @@ -1,4 +1,4 @@ -/* $Id: tiffiop.h,v 1.1 2008/10/17 06:16:07 scuri Exp $ */ +/* $Id: tiffiop.h,v 1.2 2009/08/21 04:01:59 scuri Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -57,6 +57,13 @@ extern void *lfind(const void *, const void *, size_t *, size_t, int (*)(const void *, const void *)); #endif +/* + Libtiff itself does not require a 64-bit type, but bundled TIFF + utilities may use it. +*/ +typedef TIFF_INT64_T int64; +typedef TIFF_UINT64_T uint64; + #include "tiffio.h" #include "tif_dir.h" @@ -97,29 +104,35 @@ struct tiff { int tif_fd; /* open file descriptor */ int tif_mode; /* open mode (O_*) */ uint32 tif_flags; -#define TIFF_FILLORDER 0x0003 /* natural bit fill order for machine */ -#define TIFF_DIRTYHEADER 0x0004 /* header must be written on close */ -#define TIFF_DIRTYDIRECT 0x0008 /* current directory must be written */ -#define TIFF_BUFFERSETUP 0x0010 /* data buffers setup */ -#define TIFF_CODERSETUP 0x0020 /* encoder/decoder setup done */ -#define TIFF_BEENWRITING 0x0040 /* written 1+ scanlines to file */ -#define TIFF_SWAB 0x0080 /* byte swap file information */ -#define TIFF_NOBITREV 0x0100 /* inhibit bit reversal logic */ -#define TIFF_MYBUFFER 0x0200 /* my raw data buffer; free on close */ -#define TIFF_ISTILED 0x0400 /* file is tile, not strip- based */ -#define TIFF_MAPPED 0x0800 /* file is mapped into memory */ -#define TIFF_POSTENCODE 0x1000 /* need call to postencode routine */ -#define TIFF_INSUBIFD 0x2000 /* currently writing a subifd */ -#define TIFF_UPSAMPLED 0x4000 /* library is doing data up-sampling */ -#define TIFF_STRIPCHOP 0x8000 /* enable strip chopping support */ +#define TIFF_FILLORDER 0x00003 /* natural bit fill order for machine */ +#define TIFF_DIRTYHEADER 0x00004 /* header must be written on close */ +#define TIFF_DIRTYDIRECT 0x00008 /* current directory must be written */ +#define TIFF_BUFFERSETUP 0x00010 /* data buffers setup */ +#define TIFF_CODERSETUP 0x00020 /* encoder/decoder setup done */ +#define TIFF_BEENWRITING 0x00040 /* written 1+ scanlines to file */ +#define TIFF_SWAB 0x00080 /* byte swap file information */ +#define TIFF_NOBITREV 0x00100 /* inhibit bit reversal logic */ +#define TIFF_MYBUFFER 0x00200 /* my raw data buffer; free on close */ +#define TIFF_ISTILED 0x00400 /* file is tile, not strip- based */ +#define TIFF_MAPPED 0x00800 /* file is mapped into memory */ +#define TIFF_POSTENCODE 0x01000 /* need call to postencode routine */ +#define TIFF_INSUBIFD 0x02000 /* currently writing a subifd */ +#define TIFF_UPSAMPLED 0x04000 /* library is doing data up-sampling */ +#define TIFF_STRIPCHOP 0x08000 /* enable strip chopping support */ #define TIFF_HEADERONLY 0x10000 /* read header only, do not process */ /* the first directory */ +#define TIFF_NOREADRAW 0x20000 /* skip reading of raw uncompressed */ + /* image data */ +#define TIFF_INCUSTOMIFD 0x40000 /* currently writing a custom IFD */ toff_t tif_diroff; /* file offset of current directory */ toff_t tif_nextdiroff; /* file offset of following directory */ toff_t* tif_dirlist; /* list of offsets to already seen */ /* directories to prevent IFD looping */ + tsize_t tif_dirlistsize;/* number of entires in offset list */ uint16 tif_dirnumber; /* number of already seen directories */ TIFFDirectory tif_dir; /* internal rep of current directory */ + TIFFDirectory tif_customdir; /* custom IFDs are separated from + the main ones */ TIFFHeader tif_header; /* file's header block */ const int* tif_typeshift; /* data type shift counts */ const long* tif_typemask; /* data type masks */ @@ -164,7 +177,8 @@ struct tiff { tsize_t tif_rawcc; /* bytes unread from raw buffer */ /* memory-mapped file support */ tidata_t tif_base; /* base of mapped file */ - toff_t tif_size; /* size of mapped file region (bytes) */ + toff_t tif_size; /* size of mapped file region (bytes) + FIXME: it should be tsize_t */ TIFFMapFileProc tif_mapproc; /* map file method */ TIFFUnmapFileProc tif_unmapproc;/* unmap file method */ /* input/output callback methods */ @@ -273,6 +287,7 @@ extern TIFFErrorHandlerExt _TIFFwarningHandlerExt; extern TIFFErrorHandlerExt _TIFFerrorHandlerExt; extern tdata_t _TIFFCheckMalloc(TIFF*, size_t, size_t, const char*); +extern tdata_t _TIFFCheckRealloc(TIFF*, tdata_t, size_t, size_t, const char*); extern int TIFFInitDumpMode(TIFF*, int); #ifdef PACKBITS_SUPPORT diff --git a/src/libtiff/tiffvers.h b/src/libtiff/tiffvers.h index 9744f8d..aec110d 100644 --- a/src/libtiff/tiffvers.h +++ b/src/libtiff/tiffvers.h @@ -1,4 +1,4 @@ -#define TIFFLIB_VERSION_STR "LIBTIFF, Version 3.8.2\nCopyright (c) 1988-1996 Sam Leffler\nCopyright (c) 1991-1996 Silicon Graphics, Inc." +#define TIFFLIB_VERSION_STR "LIBTIFF, Version 3.9.0\nCopyright (c) 1988-1996 Sam Leffler\nCopyright (c) 1991-1996 Silicon Graphics, Inc." /* * This define can be used in code that requires * compilation-related definitions specific to a @@ -6,4 +6,4 @@ * version checking should be done based on the * string returned by TIFFGetVersion. */ -#define TIFFLIB_VERSION 20060323 +#define TIFFLIB_VERSION 20090820 |