diff options
author | Tarja Sundqvist <tarja.sundqvist@qt.io> | 2024-01-04 21:21:52 +0200 |
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committer | Tarja Sundqvist <tarja.sundqvist@qt.io> | 2024-01-04 21:21:52 +0200 |
commit | 3c2ad3eed6fc522ad809797747c8028b3dd4778a (patch) | |
tree | c64f652f34da2e39db11b6fca22ad5322c75554d /src/3rdparty/libtiff/libtiff/tif_next.c | |
parent | 1019058c497e33edef80d5cb120aa7d6a418a7c6 (diff) | |
parent | 1eaa734e4de3589c3c90e4676959a82299a6eb56 (diff) |
Merge remote-tracking branch 'origin/tqtc/lts-5.15.13' into tqtc/lts-5.15-opensourcev5.15.13-lts-lgpl
Change-Id: I61d561ccb0fe4d1f669a97acb27e76f646b76731
Diffstat (limited to 'src/3rdparty/libtiff/libtiff/tif_next.c')
-rw-r--r-- | src/3rdparty/libtiff/libtiff/tif_next.c | 301 |
1 files changed, 154 insertions, 147 deletions
diff --git a/src/3rdparty/libtiff/libtiff/tif_next.c b/src/3rdparty/libtiff/libtiff/tif_next.c index 695fc5d..f000574 100644 --- a/src/3rdparty/libtiff/libtiff/tif_next.c +++ b/src/3rdparty/libtiff/libtiff/tif_next.c @@ -2,23 +2,23 @@ * 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. */ @@ -30,158 +30,165 @@ * NeXT 2-bit Grey Scale Compression Algorithm Support */ -#define SETPIXEL(op, v) { \ - switch (npixels++ & 3) { \ - case 0: op[0] = (unsigned char) ((v) << 6); break; \ - case 1: op[0] |= (v) << 4; break; \ - case 2: op[0] |= (v) << 2; break; \ - case 3: *op++ |= (v); op_offset++; break; \ - } \ -} +#define SETPIXEL(op, v) \ + { \ + switch (npixels++ & 3) \ + { \ + case 0: \ + op[0] = (unsigned char)((v) << 6); \ + break; \ + case 1: \ + op[0] |= (v) << 4; \ + break; \ + case 2: \ + op[0] |= (v) << 2; \ + break; \ + case 3: \ + *op++ |= (v); \ + op_offset++; \ + break; \ + } \ + } -#define LITERALROW 0x00 -#define LITERALSPAN 0x40 -#define WHITE ((1<<2)-1) +#define LITERALROW 0x00 +#define LITERALSPAN 0x40 +#define WHITE ((1 << 2) - 1) -static int -NeXTDecode(TIFF* tif, uint8_t* buf, tmsize_t occ, uint16_t s) +static int NeXTDecode(TIFF *tif, uint8_t *buf, tmsize_t occ, uint16_t s) { - static const char module[] = "NeXTDecode"; - unsigned char *bp, *op; - tmsize_t cc; - uint8_t* row; - tmsize_t scanline, n; + static const char module[] = "NeXTDecode"; + unsigned char *bp, *op; + tmsize_t cc; + uint8_t *row; + tmsize_t scanline, n; - (void) s; - /* - * Each scanline is assumed to start off as all - * white (we assume a PhotometricInterpretation - * of ``min-is-black''). - */ - for (op = (unsigned char*) buf, cc = occ; cc-- > 0;) - *op++ = 0xff; + (void)s; + /* + * Each scanline is assumed to start off as all + * white (we assume a PhotometricInterpretation + * of ``min-is-black''). + */ + 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; cc > 0 && occ > 0; occ -= scanline, row += scanline) { - n = *bp++; - cc--; - switch (n) { - case LITERALROW: - /* - * The entire scanline is given as literal values. - */ - if (cc < scanline) - goto bad; - _TIFFmemcpy(row, bp, scanline); - bp += scanline; - cc -= scanline; - break; - case LITERALSPAN: { - tmsize_t off; - /* - * The scanline has a literal span that begins at some - * offset. - */ - if( cc < 4 ) - goto bad; - off = (bp[0] * 256) + bp[1]; - n = (bp[2] * 256) + bp[3]; - if (cc < 4+n || off+n > scanline) - goto bad; - _TIFFmemcpy(row+off, bp+4, n); - bp += 4+n; - cc -= 4+n; - break; - } - default: { - uint32_t npixels = 0, grey; - tmsize_t op_offset = 0; - uint32_t imagewidth = tif->tif_dir.td_imagewidth; - if( isTiled(tif) ) - imagewidth = tif->tif_dir.td_tilewidth; + bp = (unsigned char *)tif->tif_rawcp; + cc = tif->tif_rawcc; + scanline = tif->tif_scanlinesize; + if (occ % scanline) + { + TIFFErrorExtR(tif, module, "Fractional scanlines cannot be read"); + return (0); + } + for (row = buf; cc > 0 && occ > 0; occ -= scanline, row += scanline) + { + n = *bp++; + cc--; + switch (n) + { + case LITERALROW: + /* + * The entire scanline is given as literal values. + */ + if (cc < scanline) + goto bad; + _TIFFmemcpy(row, bp, scanline); + bp += scanline; + cc -= scanline; + break; + case LITERALSPAN: + { + tmsize_t off; + /* + * The scanline has a literal span that begins at some + * offset. + */ + if (cc < 4) + goto bad; + off = (bp[0] * 256) + bp[1]; + n = (bp[2] * 256) + bp[3]; + if (cc < 4 + n || off + n > scanline) + goto bad; + _TIFFmemcpy(row + off, bp + 4, n); + bp += 4 + n; + cc -= 4 + n; + break; + } + default: + { + uint32_t npixels = 0, grey; + tmsize_t op_offset = 0; + uint32_t imagewidth = tif->tif_dir.td_imagewidth; + if (isTiled(tif)) + imagewidth = tif->tif_dir.td_tilewidth; - /* - * 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 = (uint32_t)((n >> 6) & 0x3); - n &= 0x3f; - /* - * Ensure the run does not exceed the scanline - * bounds, potentially resulting in a security - * issue. - */ - while (n-- > 0 && npixels < imagewidth && op_offset < scanline) - SETPIXEL(op, grey); - if (npixels >= imagewidth) - break; - if (op_offset >= scanline ) { - TIFFErrorExt(tif->tif_clientdata, module, "Invalid data for scanline %"PRIu32, - tif->tif_row); - return (0); + /* + * 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 = (uint32_t)((n >> 6) & 0x3); + n &= 0x3f; + /* + * Ensure the run does not exceed the scanline + * bounds, potentially resulting in a security + * issue. + */ + while (n-- > 0 && npixels < imagewidth && + op_offset < scanline) + SETPIXEL(op, grey); + if (npixels >= imagewidth) + break; + if (op_offset >= scanline) + { + TIFFErrorExtR(tif, module, + "Invalid data for scanline %" PRIu32, + tif->tif_row); + return (0); + } + if (cc == 0) + goto bad; + n = *bp++; + cc--; } - if (cc == 0) - goto bad; - n = *bp++; - cc--; - } - break; - } - } - } - tif->tif_rawcp = (uint8_t*) bp; - tif->tif_rawcc = cc; - return (1); + break; + } + } + } + tif->tif_rawcp = (uint8_t *)bp; + tif->tif_rawcc = cc; + return (1); bad: - TIFFErrorExt(tif->tif_clientdata, module, "Not enough data for scanline %"PRIu32, - tif->tif_row); - return (0); + TIFFErrorExtR(tif, module, "Not enough data for scanline %" PRIu32, + tif->tif_row); + return (0); } -static int -NeXTPreDecode(TIFF* tif, uint16_t s) +static int NeXTPreDecode(TIFF *tif, uint16_t s) { - static const char module[] = "NeXTPreDecode"; - TIFFDirectory *td = &tif->tif_dir; - (void)s; + static const char module[] = "NeXTPreDecode"; + TIFFDirectory *td = &tif->tif_dir; + (void)s; - if( td->td_bitspersample != 2 ) - { - TIFFErrorExt(tif->tif_clientdata, module, "Unsupported BitsPerSample = %"PRIu16, - td->td_bitspersample); - return (0); - } - return (1); + if (td->td_bitspersample != 2) + { + TIFFErrorExtR(tif, module, "Unsupported BitsPerSample = %" PRIu16, + td->td_bitspersample); + return (0); + } + return (1); } - -int -TIFFInitNeXT(TIFF* tif, int scheme) + +int TIFFInitNeXT(TIFF *tif, int scheme) { - (void) scheme; - tif->tif_predecode = NeXTPreDecode; - tif->tif_decoderow = NeXTDecode; - tif->tif_decodestrip = NeXTDecode; - tif->tif_decodetile = NeXTDecode; - return (1); + (void)scheme; + tif->tif_predecode = NeXTPreDecode; + 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: - */ |