diff options
author | Lucas Eckels <eckels@google.com> | 2012-08-06 15:10:42 -0700 |
---|---|---|
committer | Lucas Eckels <eckels@google.com> | 2012-08-08 09:28:58 -0700 |
commit | 71163caf89862f79f6419077cf6f0b18b7725d52 (patch) | |
tree | 2ae1fe786222abb03d00ac4efdfce94bd729d862 /Source/LibTIFF/tif_dumpmode.c | |
parent | 497a4aa54eefdd7fcb7de77e9fd1ae5f8271cd2f (diff) | |
download | free-image-71163caf89862f79f6419077cf6f0b18b7725d52.tar.gz |
Add freeimage source.
Change-Id: I6b83548e118853b41cfbac3c937d2b552e6453bb
Diffstat (limited to 'Source/LibTIFF/tif_dumpmode.c')
-rw-r--r-- | Source/LibTIFF/tif_dumpmode.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/Source/LibTIFF/tif_dumpmode.c b/Source/LibTIFF/tif_dumpmode.c new file mode 100644 index 0000000..7729e14 --- /dev/null +++ b/Source/LibTIFF/tif_dumpmode.c @@ -0,0 +1,119 @@ +/* $Header: /cvsroot/freeimage/FreeImage/Source/LibTIFF/tif_dumpmode.c,v 1.27 2009/09/06 13:11:28 drolon 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. + * + * "Null" Compression Algorithm Support. + */ +#include "tiffiop.h" + +/* + * Encode a hunk of pixels. + */ +static int +DumpModeEncode(TIFF* tif, tidata_t pp, tsize_t cc, tsample_t s) +{ + (void) s; + while (cc > 0) { + tsize_t n; + + n = cc; + if (tif->tif_rawcc + n > tif->tif_rawdatasize) + n = tif->tif_rawdatasize - tif->tif_rawcc; + + assert( n > 0 ); + + /* + * Avoid copy if client has setup raw + * data buffer to avoid extra copy. + */ + if (tif->tif_rawcp != pp) + _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); +} + +/* + * Decode a hunk of pixels. + */ +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", + tif->tif_row); + return (0); + } + /* + * Avoid copy if client has setup raw + * data buffer to avoid extra copy. + */ + if (tif->tif_rawcp != buf) + _TIFFmemcpy(buf, tif->tif_rawcp, cc); + tif->tif_rawcp += cc; + tif->tif_rawcc -= cc; + return (1); +} + +/* + * Seek forwards nrows in the current strip. + */ +static int +DumpModeSeek(TIFF* tif, uint32 nrows) +{ + tif->tif_rawcp += nrows * tif->tif_scanlinesize; + tif->tif_rawcc -= nrows * tif->tif_scanlinesize; + return (1); +} + +/* + * Initialize dump mode. + */ +int +TIFFInitDumpMode(TIFF* tif, int scheme) +{ + (void) scheme; + tif->tif_decoderow = DumpModeDecode; + tif->tif_decodestrip = DumpModeDecode; + tif->tif_decodetile = DumpModeDecode; + tif->tif_encoderow = DumpModeEncode; + tif->tif_encodestrip = DumpModeEncode; + tif->tif_encodetile = DumpModeEncode; + tif->tif_seek = DumpModeSeek; + return (1); +} |