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https://github.com/opencv/opencv.git
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52f3f5a3f6
* libtiff upgrade to version 4.6.0 * fix tiffvers.h cmake generation * temp: force build 3rd party deps from source * remove libport.h and spintf.c * cmake fixes * don't use tiff_dummy_namespace on windows * introduce numeric_types namespace alias * include cstdint * uint16_t is not a numeric_types type * fix uint16 and uint32 type defs * use standard c++ types * remove unused files * remove more unused files * revert build 3rd party code from source --------- Co-authored-by: Misha Klatis <misha.klatis@autodesk.com>
123 lines
3.5 KiB
C
123 lines
3.5 KiB
C
/*
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* Copyright (c) 1988-1997 Sam Leffler
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* Copyright (c) 1991-1997 Silicon Graphics, Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software and
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* its documentation for any purpose is hereby granted without fee, provided
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* that (i) the above copyright notices and this permission notice appear in
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* all copies of the software and related documentation, and (ii) the names of
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* Sam Leffler and Silicon Graphics may not be used in any advertising or
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* publicity relating to the software without the specific, prior written
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* permission of Sam Leffler and Silicon Graphics.
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*
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* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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*
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* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
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* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
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* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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/*
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* TIFF Library.
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*
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* "Null" Compression Algorithm Support.
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*/
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#include "tiffiop.h"
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static int DumpFixupTags(TIFF *tif)
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{
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(void)tif;
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return (1);
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}
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/*
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* Encode a hunk of pixels.
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*/
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static int DumpModeEncode(TIFF *tif, uint8_t *pp, tmsize_t cc, uint16_t s)
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{
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(void)s;
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while (cc > 0)
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{
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tmsize_t n;
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n = cc;
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if (tif->tif_rawcc + n > tif->tif_rawdatasize)
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n = tif->tif_rawdatasize - tif->tif_rawcc;
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assert(n > 0);
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/*
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* Avoid copy if client has setup raw
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* data buffer to avoid extra copy.
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*/
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if (tif->tif_rawcp != pp)
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_TIFFmemcpy(tif->tif_rawcp, pp, n);
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tif->tif_rawcp += n;
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tif->tif_rawcc += n;
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pp += n;
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cc -= n;
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if (tif->tif_rawcc >= tif->tif_rawdatasize && !TIFFFlushData1(tif))
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return (0);
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}
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return (1);
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}
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/*
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* Decode a hunk of pixels.
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*/
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static int DumpModeDecode(TIFF *tif, uint8_t *buf, tmsize_t cc, uint16_t s)
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{
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static const char module[] = "DumpModeDecode";
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(void)s;
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if (tif->tif_rawcc < cc)
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{
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TIFFErrorExtR(tif, module,
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"Not enough data for scanline %" PRIu32
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", expected a request for at most %" TIFF_SSIZE_FORMAT
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" bytes, got a request for %" TIFF_SSIZE_FORMAT " bytes",
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tif->tif_row, tif->tif_rawcc, cc);
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return (0);
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}
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/*
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* Avoid copy if client has setup raw
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* data buffer to avoid extra copy.
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*/
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if (tif->tif_rawcp != buf)
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_TIFFmemcpy(buf, tif->tif_rawcp, cc);
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tif->tif_rawcp += cc;
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tif->tif_rawcc -= cc;
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return (1);
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}
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/*
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* Seek forwards nrows in the current strip.
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*/
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static int DumpModeSeek(TIFF *tif, uint32_t nrows)
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{
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tif->tif_rawcp += nrows * tif->tif_scanlinesize;
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tif->tif_rawcc -= nrows * tif->tif_scanlinesize;
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return (1);
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}
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/*
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* Initialize dump mode.
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*/
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int TIFFInitDumpMode(TIFF *tif, int scheme)
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{
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(void)scheme;
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tif->tif_fixuptags = DumpFixupTags;
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tif->tif_decoderow = DumpModeDecode;
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tif->tif_decodestrip = DumpModeDecode;
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tif->tif_decodetile = DumpModeDecode;
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tif->tif_encoderow = DumpModeEncode;
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tif->tif_encodestrip = DumpModeEncode;
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tif->tif_encodetile = DumpModeEncode;
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tif->tif_seek = DumpModeSeek;
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return (1);
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}
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