diff options
Diffstat (limited to 'tiff/libtiff/tif_jbig.c')
| -rwxr-xr-x | tiff/libtiff/tif_jbig.c | 213 |
1 files changed, 0 insertions, 213 deletions
diff --git a/tiff/libtiff/tif_jbig.c b/tiff/libtiff/tif_jbig.c deleted file mode 100755 index 37878f6..0000000 --- a/tiff/libtiff/tif_jbig.c +++ /dev/null @@ -1,213 +0,0 @@ -/* $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 - * 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. - * - * 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 - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - * - * JBIG Compression Algorithm Support. - * Contributed by Lee Howard <faxguy@deanox.com> - * - */ - -#include "tiffiop.h" - -#ifdef JBIG_SUPPORT -#include "jbig.h" - -static int JBIGSetupDecode(TIFF* tif) -{ - if (TIFFNumberOfStrips(tif) != 1) - { - TIFFErrorExt(tif->tif_clientdata, "JBIG", "Multistrip images not supported in decoder"); - return 0; - } - - return 1; -} - -static int JBIGDecode(TIFF* tif, uint8* buffer, tmsize_t size, uint16 s) -{ - 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); - } - - jbg_dec_init(&decoder); - -#if defined(HAVE_JBG_NEWLEN) - 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, (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. - */ - TIFFErrorExt(tif->tif_clientdata, - "JBIG", "Error (%d) decoding: %s", - decodeStatus, -#if defined(JBG_EN) - jbg_strerror(decodeStatus, JBG_EN) -#else - 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) - { - TIFFErrorExt(tif->tif_clientdata, "JBIG", "Multistrip images not supported in encoder"); - return 0; - } - - return 1; -} - -static int JBIGCopyEncodedData(TIFF* tif, unsigned char* pp, size_t cc, uint16 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); - } - } - - return (1); -} - -static void JBIGOutputBie(unsigned char* buffer, size_t len, void* userData) -{ - TIFF* tif = (TIFF*)userData; - - if (isFillOrder(tif, tif->tif_dir.td_fillorder)) - { - TIFFReverseBits(buffer, (tmsize_t)len); - } - - JBIGCopyEncodedData(tif, buffer, len, 0); -} - -static int JBIGEncode(TIFF* tif, uint8* buffer, tmsize_t size, uint16 s) -{ - TIFFDirectory* dir = &tif->tif_dir; - struct jbg_enc_state encoder; - - (void) size, (void) s; - - 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; -} - -int TIFFInitJBIG(TIFF* tif, int scheme) -{ - assert(scheme == COMPRESSION_JBIG); - - /* - * 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; - - 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: - */ |