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Side by Side Diff: third_party/libjpeg_turbo/wrppm.c

Issue 7554002: Updates libjpeg-turbo to 1.1.90 (r677) (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/deps/
Patch Set: '' Created 9 years, 4 months ago
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1 /* 1 /*
2 * wrppm.c 2 * wrppm.c
3 * 3 *
4 * Copyright (C) 1991-1996, Thomas G. Lane. 4 * Copyright (C) 1991-1996, Thomas G. Lane.
5 * Modified 2009 by Guido Vollbeding.
5 * This file is part of the Independent JPEG Group's software. 6 * This file is part of the Independent JPEG Group's software.
6 * For conditions of distribution and use, see the accompanying README file. 7 * For conditions of distribution and use, see the accompanying README file.
7 * 8 *
8 * This file contains routines to write output images in PPM/PGM format. 9 * This file contains routines to write output images in PPM/PGM format.
9 * The extended 2-byte-per-sample raw PPM/PGM formats are supported. 10 * The extended 2-byte-per-sample raw PPM/PGM formats are supported.
10 * The PBMPLUS library is NOT required to compile this software 11 * The PBMPLUS library is NOT required to compile this software
11 * (but it is highly useful as a set of PPM image manipulation programs). 12 * (but it is highly useful as a set of PPM image manipulation programs).
12 * 13 *
13 * These routines may need modification for non-Unix environments or 14 * These routines may need modification for non-Unix environments or
14 * specialized applications. As they stand, they assume output to 15 * specialized applications. As they stand, they assume output to
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33 #if BITS_IN_JSAMPLE == 8 34 #if BITS_IN_JSAMPLE == 8
34 #define PUTPPMSAMPLE(ptr,v) *ptr++ = (char) (v) 35 #define PUTPPMSAMPLE(ptr,v) *ptr++ = (char) (v)
35 #define BYTESPERSAMPLE 1 36 #define BYTESPERSAMPLE 1
36 #define PPM_MAXVAL 255 37 #define PPM_MAXVAL 255
37 #else 38 #else
38 #ifdef PPM_NORAWWORD 39 #ifdef PPM_NORAWWORD
39 #define PUTPPMSAMPLE(ptr,v) *ptr++ = (char) ((v) >> (BITS_IN_JSAMPLE-8)) 40 #define PUTPPMSAMPLE(ptr,v) *ptr++ = (char) ((v) >> (BITS_IN_JSAMPLE-8))
40 #define BYTESPERSAMPLE 1 41 #define BYTESPERSAMPLE 1
41 #define PPM_MAXVAL 255 42 #define PPM_MAXVAL 255
42 #else 43 #else
43 /* The word-per-sample format always puts the LSB first. */ 44 /* The word-per-sample format always puts the MSB first. */
44 #define PUTPPMSAMPLE(ptr,v) \ 45 #define PUTPPMSAMPLE(ptr,v) \
45 { register int val_ = v; \ 46 { register int val_ = v; \
47 *ptr++ = (char) ((val_ >> 8) & 0xFF); \
46 *ptr++ = (char) (val_ & 0xFF); \ 48 *ptr++ = (char) (val_ & 0xFF); \
47 *ptr++ = (char) ((val_ >> 8) & 0xFF); \
48 } 49 }
49 #define BYTESPERSAMPLE 2 50 #define BYTESPERSAMPLE 2
50 #define PPM_MAXVAL ((1<<BITS_IN_JSAMPLE)-1) 51 #define PPM_MAXVAL ((1<<BITS_IN_JSAMPLE)-1)
51 #endif 52 #endif
52 #endif 53 #endif
53 54
54 55
55 /* 56 /*
56 * When JSAMPLE is the same size as char, we can just fwrite() the 57 * When JSAMPLE is the same size as char, we can just fwrite() the
57 * decompressed data to the PPM or PGM file. On PCs, in order to make this 58 * decompressed data to the PPM or PGM file. On PCs, in order to make this
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259 dest->pixrow = (JSAMPROW) dest->iobuffer; 260 dest->pixrow = (JSAMPROW) dest->iobuffer;
260 dest->pub.buffer = & dest->pixrow; 261 dest->pub.buffer = & dest->pixrow;
261 dest->pub.buffer_height = 1; 262 dest->pub.buffer_height = 1;
262 dest->pub.put_pixel_rows = put_pixel_rows; 263 dest->pub.put_pixel_rows = put_pixel_rows;
263 } 264 }
264 265
265 return (djpeg_dest_ptr) dest; 266 return (djpeg_dest_ptr) dest;
266 } 267 }
267 268
268 #endif /* PPM_SUPPORTED */ 269 #endif /* PPM_SUPPORTED */
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