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- /*
- * 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.
- */
-
- /* $Id: tif_dumpmode.c,v 1.6 2001/03/21 10:41:18 rjs Exp $ */
-
- #include "tiffiop.h"
-
- /*
- * Decode a hunk of pixels.
- */
- static int
- DumpModeDecode(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s)
- {
- (void) s;
- if (tif->tif_rawcc < cc) {
- TIFFError(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_seek = DumpModeSeek;
- return (1);
- }
-