diff options
Diffstat (limited to 'src/3rdparty/libtiff/libtiff/tif_jbig.c')
-rw-r--r-- | src/3rdparty/libtiff/libtiff/tif_jbig.c | 421 |
1 files changed, 128 insertions, 293 deletions
diff --git a/src/3rdparty/libtiff/libtiff/tif_jbig.c b/src/3rdparty/libtiff/libtiff/tif_jbig.c index 99183ba..37878f6 100644 --- a/src/3rdparty/libtiff/libtiff/tif_jbig.c +++ b/src/3rdparty/libtiff/libtiff/tif_jbig.c @@ -1,26 +1,26 @@ -/* $Id: tif_jbig.c,v 1.2.2.2 2008-10-21 13:13:07 dron Exp $ */ +/* $Id: tif_jbig.c,v 1.15 2010-03-10 18:56:48 bfriesen Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler * Copyright (c) 1991-1997 Silicon Graphics, Inc. * - * Permission to use, copy, modify, distribute, and sell this software and + * Permission to use, copy, modify, distribute, and sell this software and * its documentation for any purpose is hereby granted without fee, provided * that (i) the above copyright notices and this permission notice appear in * all copies of the software and related documentation, and (ii) the names of * Sam Leffler and Silicon Graphics may not be used in any advertising or * publicity relating to the software without the specific, prior written * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS 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 + * 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. */ @@ -29,7 +29,7 @@ * * JBIG Compression Algorithm Support. * Contributed by Lee Howard <faxguy@deanox.com> - * + * */ #include "tiffiop.h" @@ -37,342 +37,177 @@ #ifdef JBIG_SUPPORT #include "jbig.h" -typedef struct -{ - uint32 recvparams; /* encoded Class 2 session params */ - char* subaddress; /* subaddress string */ - uint32 recvtime; /* time spend receiving in seconds */ - char* faxdcs; /* encoded fax parameters (DCS, Table 2/T.30) */ - - TIFFVGetMethod vgetparent; - TIFFVSetMethod vsetparent; -} JBIGState; - -#define GetJBIGState(tif) ((JBIGState*)(tif)->tif_data) - -#define FIELD_RECVPARAMS (FIELD_CODEC+0) -#define FIELD_SUBADDRESS (FIELD_CODEC+1) -#define FIELD_RECVTIME (FIELD_CODEC+2) -#define FIELD_FAXDCS (FIELD_CODEC+3) - -static const TIFFFieldInfo jbigFieldInfo[] = -{ - {TIFFTAG_FAXRECVPARAMS, 1, 1, TIFF_LONG, FIELD_RECVPARAMS, TRUE, FALSE, "FaxRecvParams"}, - {TIFFTAG_FAXSUBADDRESS, -1, -1, TIFF_ASCII, FIELD_SUBADDRESS, TRUE, FALSE, "FaxSubAddress"}, - {TIFFTAG_FAXRECVTIME, 1, 1, TIFF_LONG, FIELD_RECVTIME, TRUE, FALSE, "FaxRecvTime"}, - {TIFFTAG_FAXDCS, -1, -1, TIFF_ASCII, FIELD_FAXDCS, TRUE, FALSE, "FaxDcs"}, -}; - static int JBIGSetupDecode(TIFF* tif) { - if (TIFFNumberOfStrips(tif) != 1) - { - TIFFError("JBIG", "Multistrip images not supported in decoder"); - return 0; - } + if (TIFFNumberOfStrips(tif) != 1) + { + TIFFErrorExt(tif->tif_clientdata, "JBIG", "Multistrip images not supported in decoder"); + return 0; + } - return 1; + return 1; } -static int JBIGDecode(TIFF* tif, tidata_t buffer, tsize_t size, tsample_t s) +static int JBIGDecode(TIFF* tif, uint8* buffer, tmsize_t size, uint16 s) { - struct jbg_dec_state decoder; - int decodeStatus = 0; - unsigned char* pImage = NULL; + struct jbg_dec_state decoder; + int decodeStatus = 0; + unsigned char* pImage = NULL; (void) size, (void) s; - if (isFillOrder(tif, tif->tif_dir.td_fillorder)) - { - TIFFReverseBits(tif->tif_rawdata, tif->tif_rawdatasize); - } + if (isFillOrder(tif, tif->tif_dir.td_fillorder)) + { + TIFFReverseBits(tif->tif_rawdata, tif->tif_rawdatasize); + } - jbg_dec_init(&decoder); + jbg_dec_init(&decoder); #if defined(HAVE_JBG_NEWLEN) - jbg_newlen(tif->tif_rawdata, tif->tif_rawdatasize); - /* - * I do not check the return status of jbg_newlen because even if this - * function fails it does not necessarily mean that decoding the image - * will fail. It is generally only needed for received fax images - * that do not contain the actual length of the image in the BIE - * header. I do not log when an error occurs because that will cause - * problems when converting JBIG encoded TIFF's to - * PostScript. As long as the actual image length is contained in the - * BIE header jbg_dec_in should succeed. - */ + jbg_newlen(tif->tif_rawdata, (size_t)tif->tif_rawdatasize); + /* + * I do not check the return status of jbg_newlen because even if this + * function fails it does not necessarily mean that decoding the image + * will fail. It is generally only needed for received fax images + * that do not contain the actual length of the image in the BIE + * header. I do not log when an error occurs because that will cause + * problems when converting JBIG encoded TIFF's to + * PostScript. As long as the actual image length is contained in the + * BIE header jbg_dec_in should succeed. + */ #endif /* HAVE_JBG_NEWLEN */ - decodeStatus = jbg_dec_in(&decoder, tif->tif_rawdata, - tif->tif_rawdatasize, NULL); - if (JBG_EOK != decodeStatus) - { + decodeStatus = jbg_dec_in(&decoder, (unsigned char*)tif->tif_rawdata, + (size_t)tif->tif_rawdatasize, NULL); + if (JBG_EOK != decodeStatus) + { /* * XXX: JBG_EN constant was defined in pre-2.0 releases of the * JBIG-KIT. Since the 2.0 the error reporting functions were * changed. We will handle both cases here. */ - TIFFError("JBIG", "Error (%d) decoding: %s", decodeStatus, + TIFFErrorExt(tif->tif_clientdata, + "JBIG", "Error (%d) decoding: %s", + decodeStatus, #if defined(JBG_EN) - jbg_strerror(decodeStatus, JBG_EN) + jbg_strerror(decodeStatus, JBG_EN) #else - jbg_strerror(decodeStatus) + jbg_strerror(decodeStatus) #endif - ); - return 0; - } - - pImage = jbg_dec_getimage(&decoder, 0); - _TIFFmemcpy(buffer, pImage, jbg_dec_getsize(&decoder)); - jbg_dec_free(&decoder); - return 1; -} - -static int JBIGSetupEncode(TIFF* tif) -{ - if (TIFFNumberOfStrips(tif) != 1) - { - TIFFError("JBIG", "Multistrip images not supported in encoder"); - return 0; - } - - return 1; -} + ); + return 0; + } -static int JBIGCopyEncodedData(TIFF* tif, tidata_t pp, tsize_t cc, tsample_t s) -{ - (void) s; - while (cc > 0) - { - tsize_t n = cc; - - if (tif->tif_rawcc + n > tif->tif_rawdatasize) - { - n = tif->tif_rawdatasize - tif->tif_rawcc; - } - - assert(n > 0); - _TIFFmemcpy(tif->tif_rawcp, pp, n); - tif->tif_rawcp += n; - tif->tif_rawcc += n; - pp += n; - cc -= n; - if (tif->tif_rawcc >= tif->tif_rawdatasize && - !TIFFFlushData1(tif)) - { - return (-1); - } - } - - return (1); + pImage = jbg_dec_getimage(&decoder, 0); + _TIFFmemcpy(buffer, pImage, jbg_dec_getsize(&decoder)); + jbg_dec_free(&decoder); + return 1; } -static void JBIGOutputBie(unsigned char* buffer, size_t len, void *userData) +static int JBIGSetupEncode(TIFF* tif) { - TIFF* tif = (TIFF*)userData; - - if (isFillOrder(tif, tif->tif_dir.td_fillorder)) - { - TIFFReverseBits(buffer, len); - } + if (TIFFNumberOfStrips(tif) != 1) + { + TIFFErrorExt(tif->tif_clientdata, "JBIG", "Multistrip images not supported in encoder"); + return 0; + } - JBIGCopyEncodedData(tif, buffer, len, 0); + return 1; } -static int JBIGEncode(TIFF* tif, tidata_t buffer, tsize_t size, tsample_t s) +static int JBIGCopyEncodedData(TIFF* tif, unsigned char* pp, size_t cc, uint16 s) { - TIFFDirectory* dir = &tif->tif_dir; - struct jbg_enc_state encoder; - - (void) size, (void) s; + (void) s; + while (cc > 0) + { + tmsize_t n = (tmsize_t)cc; + + if (tif->tif_rawcc + n > tif->tif_rawdatasize) + { + n = tif->tif_rawdatasize - tif->tif_rawcc; + } + + assert(n > 0); + _TIFFmemcpy(tif->tif_rawcp, pp, n); + tif->tif_rawcp += n; + tif->tif_rawcc += n; + pp += n; + cc -= (size_t)n; + if (tif->tif_rawcc >= tif->tif_rawdatasize && + !TIFFFlushData1(tif)) + { + return (-1); + } + } - jbg_enc_init(&encoder, - dir->td_imagewidth, - dir->td_imagelength, - 1, - &buffer, - JBIGOutputBie, - tif); - /* - * jbg_enc_out does the "real" encoding. As data is encoded, - * JBIGOutputBie is called, which writes the data to the directory. - */ - jbg_enc_out(&encoder); - jbg_enc_free(&encoder); - - return 1; + return (1); } -static void JBIGCleanup(TIFF* tif) +static void JBIGOutputBie(unsigned char* buffer, size_t len, void* userData) { - JBIGState *sp = GetJBIGState(tif); - - assert(sp != 0); - - tif->tif_tagmethods.vgetfield = sp->vgetparent; - tif->tif_tagmethods.vsetfield = sp->vsetparent; - - _TIFFfree(tif->tif_data); - tif->tif_data = NULL; + TIFF* tif = (TIFF*)userData; - _TIFFSetDefaultCompressionState(tif); -} - -static void JBIGPrintDir(TIFF* tif, FILE* fd, long flags) -{ - JBIGState* codec = GetJBIGState(tif); - (void)flags; - - if (TIFFFieldSet(tif, FIELD_RECVPARAMS)) - { - fprintf(fd, - " Fax Receive Parameters: %08lx\n", - (unsigned long)codec->recvparams); - } - - if (TIFFFieldSet(tif, FIELD_SUBADDRESS)) - { - fprintf(fd, - " Fax SubAddress: %s\n", - codec->subaddress); - } - - if (TIFFFieldSet(tif, FIELD_RECVTIME)) - { - fprintf(fd, - " Fax Receive Time: %lu secs\n", - (unsigned long)codec->recvtime); - } - - if (TIFFFieldSet(tif, FIELD_FAXDCS)) - { - fprintf(fd, - " Fax DCS: %s\n", - codec->faxdcs); - } -} + if (isFillOrder(tif, tif->tif_dir.td_fillorder)) + { + TIFFReverseBits(buffer, (tmsize_t)len); + } -static int JBIGVGetField(TIFF* tif, ttag_t tag, va_list ap) -{ - JBIGState* codec = GetJBIGState(tif); - - switch (tag) - { - case TIFFTAG_FAXRECVPARAMS: - *va_arg(ap, uint32*) = codec->recvparams; - break; - - case TIFFTAG_FAXSUBADDRESS: - *va_arg(ap, char**) = codec->subaddress; - break; - - case TIFFTAG_FAXRECVTIME: - *va_arg(ap, uint32*) = codec->recvtime; - break; - - case TIFFTAG_FAXDCS: - *va_arg(ap, char**) = codec->faxdcs; - break; - - default: - return (*codec->vgetparent)(tif, tag, ap); - } - - return 1; + JBIGCopyEncodedData(tif, buffer, len, 0); } -static int JBIGVSetField(TIFF* tif, ttag_t tag, va_list ap) +static int JBIGEncode(TIFF* tif, uint8* buffer, tmsize_t size, uint16 s) { - JBIGState* codec = GetJBIGState(tif); - - switch (tag) - { - case TIFFTAG_FAXRECVPARAMS: - codec->recvparams = va_arg(ap, uint32); - break; + TIFFDirectory* dir = &tif->tif_dir; + struct jbg_enc_state encoder; - case TIFFTAG_FAXSUBADDRESS: - _TIFFsetString(&codec->subaddress, va_arg(ap, char*)); - break; - - case TIFFTAG_FAXRECVTIME: - codec->recvtime = va_arg(ap, uint32); - break; - - case TIFFTAG_FAXDCS: - _TIFFsetString(&codec->faxdcs, va_arg(ap, char*)); - break; + (void) size, (void) s; - default: - return (*codec->vsetparent)(tif, tag, ap); - } + jbg_enc_init(&encoder, + dir->td_imagewidth, + dir->td_imagelength, + 1, + &buffer, + JBIGOutputBie, + tif); + /* + * jbg_enc_out does the "real" encoding. As data is encoded, + * JBIGOutputBie is called, which writes the data to the directory. + */ + jbg_enc_out(&encoder); + jbg_enc_free(&encoder); - TIFFSetFieldBit(tif, _TIFFFieldWithTag(tif, tag)->field_bit); - tif->tif_flags |= TIFF_DIRTYDIRECT; - return 1; + return 1; } int TIFFInitJBIG(TIFF* tif, int scheme) { - JBIGState* codec = NULL; - assert(scheme == COMPRESSION_JBIG); /* - * Merge codec-specific tag information. + * These flags are set so the JBIG Codec can control when to reverse + * bits and when not to and to allow the jbig decoder and bit reverser + * to write to memory when necessary. */ - if (!_TIFFMergeFieldInfo(tif, jbigFieldInfo, - TIFFArrayCount(jbigFieldInfo))) { - TIFFErrorExt(tif->tif_clientdata, "TIFFInitJBIG", - "Merging JBIG codec-specific tags failed"); - return 0; - } + tif->tif_flags |= TIFF_NOBITREV; + tif->tif_flags &= ~TIFF_MAPPED; - /* Allocate memory for the JBIGState structure.*/ - tif->tif_data = (tdata_t)_TIFFmalloc(sizeof(JBIGState)); - if (tif->tif_data == NULL) - { - TIFFError("TIFFInitJBIG", "Not enough memory for JBIGState"); - return 0; - } - _TIFFmemset(tif->tif_data, 0, sizeof(JBIGState)); - codec = GetJBIGState(tif); - - /* Initialize codec private fields */ - codec->recvparams = 0; - codec->subaddress = NULL; - codec->faxdcs = NULL; - codec->recvtime = 0; - - /* - * Override parent get/set field methods. - */ - codec->vgetparent = tif->tif_tagmethods.vgetfield; - codec->vsetparent = tif->tif_tagmethods.vsetfield; - tif->tif_tagmethods.vgetfield = JBIGVGetField; - tif->tif_tagmethods.vsetfield = JBIGVSetField; - tif->tif_tagmethods.printdir = JBIGPrintDir; - - /* - * These flags are set so the JBIG Codec can control when to reverse - * bits and when not to and to allow the jbig decoder and bit reverser - * to write to memory when necessary. - */ - tif->tif_flags |= TIFF_NOBITREV; - tif->tif_flags &= ~TIFF_MAPPED; - - /* Setup the function pointers for encode, decode, and cleanup. */ - tif->tif_setupdecode = JBIGSetupDecode; - tif->tif_decodestrip = JBIGDecode; - - tif->tif_setupencode = JBIGSetupEncode; - tif->tif_encodestrip = JBIGEncode; - - tif->tif_cleanup = JBIGCleanup; - - return 1; + /* Setup the function pointers for encode, decode, and cleanup. */ + tif->tif_setupdecode = JBIGSetupDecode; + tif->tif_decodestrip = JBIGDecode; + + tif->tif_setupencode = JBIGSetupEncode; + tif->tif_encodestrip = JBIGEncode; + + return 1; } #endif /* JBIG_SUPPORT */ /* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ |