diff options
Diffstat (limited to 'src/3rdparty/libtiff/libtiff/tif_next.c')
| -rw-r--r-- | src/3rdparty/libtiff/libtiff/tif_next.c | 37 |
1 files changed, 25 insertions, 12 deletions
diff --git a/src/3rdparty/libtiff/libtiff/tif_next.c b/src/3rdparty/libtiff/libtiff/tif_next.c index 0e1842d872..524e127c13 100644 --- a/src/3rdparty/libtiff/libtiff/tif_next.c +++ b/src/3rdparty/libtiff/libtiff/tif_next.c @@ -1,4 +1,4 @@ -/* $Id: tif_next.c,v 1.8 2006/10/12 15:00:49 dron Exp $ */ +/* $Id: tif_next.c,v 1.13 2010-03-10 18:56:48 bfriesen Exp $ */ /* * Copyright (c) 1988-1997 Sam Leffler @@ -46,12 +46,13 @@ #define WHITE ((1<<2)-1) static int -NeXTDecode(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) +NeXTDecode(TIFF* tif, uint8* buf, tmsize_t occ, uint16 s) { + static const char module[] = "NeXTDecode"; unsigned char *bp, *op; - tsize_t cc; - tidata_t row; - tsize_t scanline, n; + tmsize_t cc; + uint8* row; + tmsize_t scanline, n; (void) s; /* @@ -59,12 +60,17 @@ NeXTDecode(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) * white (we assume a PhotometricInterpretation * of ``min-is-black''). */ - for (op = buf, cc = occ; cc-- > 0;) + for (op = (unsigned char*) buf, cc = occ; cc-- > 0;) *op++ = 0xff; bp = (unsigned char *)tif->tif_rawcp; cc = tif->tif_rawcc; scanline = tif->tif_scanlinesize; + if (occ % scanline) + { + TIFFErrorExt(tif->tif_clientdata, module, "Fractional scanlines cannot be read"); + return (0); + } for (row = buf; occ > 0; occ -= scanline, row += scanline) { n = *bp++, cc--; switch (n) { @@ -79,7 +85,7 @@ NeXTDecode(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) cc -= scanline; break; case LITERALSPAN: { - tsize_t off; + tmsize_t off; /* * The scanline has a literal span that begins at some * offset. @@ -105,7 +111,7 @@ NeXTDecode(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) */ op = row; for (;;) { - grey = (n>>6) & 0x3; + grey = (uint32)((n>>6) & 0x3); n &= 0x3f; /* * Ensure the run does not exceed the scanline @@ -124,11 +130,11 @@ NeXTDecode(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) } } } - tif->tif_rawcp = (tidata_t) bp; + tif->tif_rawcp = (uint8*) bp; tif->tif_rawcc = cc; return (1); bad: - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "NeXTDecode: Not enough data for scanline %ld", + TIFFErrorExt(tif->tif_clientdata, module, "Not enough data for scanline %ld", (long) tif->tif_row); return (0); } @@ -137,11 +143,18 @@ int TIFFInitNeXT(TIFF* tif, int scheme) { (void) scheme; - tif->tif_decoderow = NeXTDecode; - tif->tif_decodestrip = NeXTDecode; + tif->tif_decoderow = NeXTDecode; + tif->tif_decodestrip = NeXTDecode; tif->tif_decodetile = NeXTDecode; return (1); } #endif /* NEXT_SUPPORT */ /* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ |