diff options
Diffstat (limited to 'libraries/irrlicht-1.8/source/Irrlicht/jpeglib/wrppm.c')
-rw-r--r-- | libraries/irrlicht-1.8/source/Irrlicht/jpeglib/wrppm.c | 538 |
1 files changed, 269 insertions, 269 deletions
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/wrppm.c b/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/wrppm.c index 1e56d9c..68e0c85 100644 --- a/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/wrppm.c +++ b/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/wrppm.c | |||
@@ -1,269 +1,269 @@ | |||
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 | * Modified 2009 by Guido Vollbeding. |
6 | * This file is part of the Independent JPEG Group's software. | 6 | * This file is part of the Independent JPEG Group's software. |
7 | * For conditions of distribution and use, see the accompanying README file. | 7 | * For conditions of distribution and use, see the accompanying README file. |
8 | * | 8 | * |
9 | * 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. |
10 | * 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. |
11 | * The PBMPLUS library is NOT required to compile this software | 11 | * The PBMPLUS library is NOT required to compile this software |
12 | * (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). |
13 | * | 13 | * |
14 | * These routines may need modification for non-Unix environments or | 14 | * These routines may need modification for non-Unix environments or |
15 | * specialized applications. As they stand, they assume output to | 15 | * specialized applications. As they stand, they assume output to |
16 | * an ordinary stdio stream. | 16 | * an ordinary stdio stream. |
17 | */ | 17 | */ |
18 | 18 | ||
19 | #include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ | 19 | #include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ |
20 | 20 | ||
21 | #ifdef PPM_SUPPORTED | 21 | #ifdef PPM_SUPPORTED |
22 | 22 | ||
23 | 23 | ||
24 | /* | 24 | /* |
25 | * For 12-bit JPEG data, we either downscale the values to 8 bits | 25 | * For 12-bit JPEG data, we either downscale the values to 8 bits |
26 | * (to write standard byte-per-sample PPM/PGM files), or output | 26 | * (to write standard byte-per-sample PPM/PGM files), or output |
27 | * nonstandard word-per-sample PPM/PGM files. Downscaling is done | 27 | * nonstandard word-per-sample PPM/PGM files. Downscaling is done |
28 | * if PPM_NORAWWORD is defined (this can be done in the Makefile | 28 | * if PPM_NORAWWORD is defined (this can be done in the Makefile |
29 | * or in jconfig.h). | 29 | * or in jconfig.h). |
30 | * (When the core library supports data precision reduction, a cleaner | 30 | * (When the core library supports data precision reduction, a cleaner |
31 | * implementation will be to ask for that instead.) | 31 | * implementation will be to ask for that instead.) |
32 | */ | 32 | */ |
33 | 33 | ||
34 | #if BITS_IN_JSAMPLE == 8 | 34 | #if BITS_IN_JSAMPLE == 8 |
35 | #define PUTPPMSAMPLE(ptr,v) *ptr++ = (char) (v) | 35 | #define PUTPPMSAMPLE(ptr,v) *ptr++ = (char) (v) |
36 | #define BYTESPERSAMPLE 1 | 36 | #define BYTESPERSAMPLE 1 |
37 | #define PPM_MAXVAL 255 | 37 | #define PPM_MAXVAL 255 |
38 | #else | 38 | #else |
39 | #ifdef PPM_NORAWWORD | 39 | #ifdef PPM_NORAWWORD |
40 | #define PUTPPMSAMPLE(ptr,v) *ptr++ = (char) ((v) >> (BITS_IN_JSAMPLE-8)) | 40 | #define PUTPPMSAMPLE(ptr,v) *ptr++ = (char) ((v) >> (BITS_IN_JSAMPLE-8)) |
41 | #define BYTESPERSAMPLE 1 | 41 | #define BYTESPERSAMPLE 1 |
42 | #define PPM_MAXVAL 255 | 42 | #define PPM_MAXVAL 255 |
43 | #else | 43 | #else |
44 | /* The word-per-sample format always puts the MSB first. */ | 44 | /* The word-per-sample format always puts the MSB first. */ |
45 | #define PUTPPMSAMPLE(ptr,v) \ | 45 | #define PUTPPMSAMPLE(ptr,v) \ |
46 | { register int val_ = v; \ | 46 | { register int val_ = v; \ |
47 | *ptr++ = (char) ((val_ >> 8) & 0xFF); \ | 47 | *ptr++ = (char) ((val_ >> 8) & 0xFF); \ |
48 | *ptr++ = (char) (val_ & 0xFF); \ | 48 | *ptr++ = (char) (val_ & 0xFF); \ |
49 | } | 49 | } |
50 | #define BYTESPERSAMPLE 2 | 50 | #define BYTESPERSAMPLE 2 |
51 | #define PPM_MAXVAL ((1<<BITS_IN_JSAMPLE)-1) | 51 | #define PPM_MAXVAL ((1<<BITS_IN_JSAMPLE)-1) |
52 | #endif | 52 | #endif |
53 | #endif | 53 | #endif |
54 | 54 | ||
55 | 55 | ||
56 | /* | 56 | /* |
57 | * 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 |
58 | * 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 |
59 | * work the output buffer must be allocated in near data space, because we are | 59 | * work the output buffer must be allocated in near data space, because we are |
60 | * assuming small-data memory model wherein fwrite() can't reach far memory. | 60 | * assuming small-data memory model wherein fwrite() can't reach far memory. |
61 | * If you need to process very wide images on a PC, you might have to compile | 61 | * If you need to process very wide images on a PC, you might have to compile |
62 | * in large-memory model, or else replace fwrite() with a putc() loop --- | 62 | * in large-memory model, or else replace fwrite() with a putc() loop --- |
63 | * which will be much slower. | 63 | * which will be much slower. |
64 | */ | 64 | */ |
65 | 65 | ||
66 | 66 | ||
67 | /* Private version of data destination object */ | 67 | /* Private version of data destination object */ |
68 | 68 | ||
69 | typedef struct { | 69 | typedef struct { |
70 | struct djpeg_dest_struct pub; /* public fields */ | 70 | struct djpeg_dest_struct pub; /* public fields */ |
71 | 71 | ||
72 | /* Usually these two pointers point to the same place: */ | 72 | /* Usually these two pointers point to the same place: */ |
73 | char *iobuffer; /* fwrite's I/O buffer */ | 73 | char *iobuffer; /* fwrite's I/O buffer */ |
74 | JSAMPROW pixrow; /* decompressor output buffer */ | 74 | JSAMPROW pixrow; /* decompressor output buffer */ |
75 | size_t buffer_width; /* width of I/O buffer */ | 75 | size_t buffer_width; /* width of I/O buffer */ |
76 | JDIMENSION samples_per_row; /* JSAMPLEs per output row */ | 76 | JDIMENSION samples_per_row; /* JSAMPLEs per output row */ |
77 | } ppm_dest_struct; | 77 | } ppm_dest_struct; |
78 | 78 | ||
79 | typedef ppm_dest_struct * ppm_dest_ptr; | 79 | typedef ppm_dest_struct * ppm_dest_ptr; |
80 | 80 | ||
81 | 81 | ||
82 | /* | 82 | /* |
83 | * Write some pixel data. | 83 | * Write some pixel data. |
84 | * In this module rows_supplied will always be 1. | 84 | * In this module rows_supplied will always be 1. |
85 | * | 85 | * |
86 | * put_pixel_rows handles the "normal" 8-bit case where the decompressor | 86 | * put_pixel_rows handles the "normal" 8-bit case where the decompressor |
87 | * output buffer is physically the same as the fwrite buffer. | 87 | * output buffer is physically the same as the fwrite buffer. |
88 | */ | 88 | */ |
89 | 89 | ||
90 | METHODDEF(void) | 90 | METHODDEF(void) |
91 | put_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, | 91 | put_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, |
92 | JDIMENSION rows_supplied) | 92 | JDIMENSION rows_supplied) |
93 | { | 93 | { |
94 | ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; | 94 | ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; |
95 | 95 | ||
96 | (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); | 96 | (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); |
97 | } | 97 | } |
98 | 98 | ||
99 | 99 | ||
100 | /* | 100 | /* |
101 | * This code is used when we have to copy the data and apply a pixel | 101 | * This code is used when we have to copy the data and apply a pixel |
102 | * format translation. Typically this only happens in 12-bit mode. | 102 | * format translation. Typically this only happens in 12-bit mode. |
103 | */ | 103 | */ |
104 | 104 | ||
105 | METHODDEF(void) | 105 | METHODDEF(void) |
106 | copy_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, | 106 | copy_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, |
107 | JDIMENSION rows_supplied) | 107 | JDIMENSION rows_supplied) |
108 | { | 108 | { |
109 | ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; | 109 | ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; |
110 | register char * bufferptr; | 110 | register char * bufferptr; |
111 | register JSAMPROW ptr; | 111 | register JSAMPROW ptr; |
112 | register JDIMENSION col; | 112 | register JDIMENSION col; |
113 | 113 | ||
114 | ptr = dest->pub.buffer[0]; | 114 | ptr = dest->pub.buffer[0]; |
115 | bufferptr = dest->iobuffer; | 115 | bufferptr = dest->iobuffer; |
116 | for (col = dest->samples_per_row; col > 0; col--) { | 116 | for (col = dest->samples_per_row; col > 0; col--) { |
117 | PUTPPMSAMPLE(bufferptr, GETJSAMPLE(*ptr++)); | 117 | PUTPPMSAMPLE(bufferptr, GETJSAMPLE(*ptr++)); |
118 | } | 118 | } |
119 | (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); | 119 | (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); |
120 | } | 120 | } |
121 | 121 | ||
122 | 122 | ||
123 | /* | 123 | /* |
124 | * Write some pixel data when color quantization is in effect. | 124 | * Write some pixel data when color quantization is in effect. |
125 | * We have to demap the color index values to straight data. | 125 | * We have to demap the color index values to straight data. |
126 | */ | 126 | */ |
127 | 127 | ||
128 | METHODDEF(void) | 128 | METHODDEF(void) |
129 | put_demapped_rgb (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, | 129 | put_demapped_rgb (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, |
130 | JDIMENSION rows_supplied) | 130 | JDIMENSION rows_supplied) |
131 | { | 131 | { |
132 | ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; | 132 | ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; |
133 | register char * bufferptr; | 133 | register char * bufferptr; |
134 | register int pixval; | 134 | register int pixval; |
135 | register JSAMPROW ptr; | 135 | register JSAMPROW ptr; |
136 | register JSAMPROW color_map0 = cinfo->colormap[0]; | 136 | register JSAMPROW color_map0 = cinfo->colormap[0]; |
137 | register JSAMPROW color_map1 = cinfo->colormap[1]; | 137 | register JSAMPROW color_map1 = cinfo->colormap[1]; |
138 | register JSAMPROW color_map2 = cinfo->colormap[2]; | 138 | register JSAMPROW color_map2 = cinfo->colormap[2]; |
139 | register JDIMENSION col; | 139 | register JDIMENSION col; |
140 | 140 | ||
141 | ptr = dest->pub.buffer[0]; | 141 | ptr = dest->pub.buffer[0]; |
142 | bufferptr = dest->iobuffer; | 142 | bufferptr = dest->iobuffer; |
143 | for (col = cinfo->output_width; col > 0; col--) { | 143 | for (col = cinfo->output_width; col > 0; col--) { |
144 | pixval = GETJSAMPLE(*ptr++); | 144 | pixval = GETJSAMPLE(*ptr++); |
145 | PUTPPMSAMPLE(bufferptr, GETJSAMPLE(color_map0[pixval])); | 145 | PUTPPMSAMPLE(bufferptr, GETJSAMPLE(color_map0[pixval])); |
146 | PUTPPMSAMPLE(bufferptr, GETJSAMPLE(color_map1[pixval])); | 146 | PUTPPMSAMPLE(bufferptr, GETJSAMPLE(color_map1[pixval])); |
147 | PUTPPMSAMPLE(bufferptr, GETJSAMPLE(color_map2[pixval])); | 147 | PUTPPMSAMPLE(bufferptr, GETJSAMPLE(color_map2[pixval])); |
148 | } | 148 | } |
149 | (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); | 149 | (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); |
150 | } | 150 | } |
151 | 151 | ||
152 | 152 | ||
153 | METHODDEF(void) | 153 | METHODDEF(void) |
154 | put_demapped_gray (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, | 154 | put_demapped_gray (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, |
155 | JDIMENSION rows_supplied) | 155 | JDIMENSION rows_supplied) |
156 | { | 156 | { |
157 | ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; | 157 | ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; |
158 | register char * bufferptr; | 158 | register char * bufferptr; |
159 | register JSAMPROW ptr; | 159 | register JSAMPROW ptr; |
160 | register JSAMPROW color_map = cinfo->colormap[0]; | 160 | register JSAMPROW color_map = cinfo->colormap[0]; |
161 | register JDIMENSION col; | 161 | register JDIMENSION col; |
162 | 162 | ||
163 | ptr = dest->pub.buffer[0]; | 163 | ptr = dest->pub.buffer[0]; |
164 | bufferptr = dest->iobuffer; | 164 | bufferptr = dest->iobuffer; |
165 | for (col = cinfo->output_width; col > 0; col--) { | 165 | for (col = cinfo->output_width; col > 0; col--) { |
166 | PUTPPMSAMPLE(bufferptr, GETJSAMPLE(color_map[GETJSAMPLE(*ptr++)])); | 166 | PUTPPMSAMPLE(bufferptr, GETJSAMPLE(color_map[GETJSAMPLE(*ptr++)])); |
167 | } | 167 | } |
168 | (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); | 168 | (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); |
169 | } | 169 | } |
170 | 170 | ||
171 | 171 | ||
172 | /* | 172 | /* |
173 | * Startup: write the file header. | 173 | * Startup: write the file header. |
174 | */ | 174 | */ |
175 | 175 | ||
176 | METHODDEF(void) | 176 | METHODDEF(void) |
177 | start_output_ppm (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) | 177 | start_output_ppm (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) |
178 | { | 178 | { |
179 | ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; | 179 | ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; |
180 | 180 | ||
181 | /* Emit file header */ | 181 | /* Emit file header */ |
182 | switch (cinfo->out_color_space) { | 182 | switch (cinfo->out_color_space) { |
183 | case JCS_GRAYSCALE: | 183 | case JCS_GRAYSCALE: |
184 | /* emit header for raw PGM format */ | 184 | /* emit header for raw PGM format */ |
185 | fprintf(dest->pub.output_file, "P5\n%ld %ld\n%d\n", | 185 | fprintf(dest->pub.output_file, "P5\n%ld %ld\n%d\n", |
186 | (long) cinfo->output_width, (long) cinfo->output_height, | 186 | (long) cinfo->output_width, (long) cinfo->output_height, |
187 | PPM_MAXVAL); | 187 | PPM_MAXVAL); |
188 | break; | 188 | break; |
189 | case JCS_RGB: | 189 | case JCS_RGB: |
190 | /* emit header for raw PPM format */ | 190 | /* emit header for raw PPM format */ |
191 | fprintf(dest->pub.output_file, "P6\n%ld %ld\n%d\n", | 191 | fprintf(dest->pub.output_file, "P6\n%ld %ld\n%d\n", |
192 | (long) cinfo->output_width, (long) cinfo->output_height, | 192 | (long) cinfo->output_width, (long) cinfo->output_height, |
193 | PPM_MAXVAL); | 193 | PPM_MAXVAL); |
194 | break; | 194 | break; |
195 | default: | 195 | default: |
196 | ERREXIT(cinfo, JERR_PPM_COLORSPACE); | 196 | ERREXIT(cinfo, JERR_PPM_COLORSPACE); |
197 | } | 197 | } |
198 | } | 198 | } |
199 | 199 | ||
200 | 200 | ||
201 | /* | 201 | /* |
202 | * Finish up at the end of the file. | 202 | * Finish up at the end of the file. |
203 | */ | 203 | */ |
204 | 204 | ||
205 | METHODDEF(void) | 205 | METHODDEF(void) |
206 | finish_output_ppm (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) | 206 | finish_output_ppm (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) |
207 | { | 207 | { |
208 | /* Make sure we wrote the output file OK */ | 208 | /* Make sure we wrote the output file OK */ |
209 | fflush(dinfo->output_file); | 209 | fflush(dinfo->output_file); |
210 | if (ferror(dinfo->output_file)) | 210 | if (ferror(dinfo->output_file)) |
211 | ERREXIT(cinfo, JERR_FILE_WRITE); | 211 | ERREXIT(cinfo, JERR_FILE_WRITE); |
212 | } | 212 | } |
213 | 213 | ||
214 | 214 | ||
215 | /* | 215 | /* |
216 | * The module selection routine for PPM format output. | 216 | * The module selection routine for PPM format output. |
217 | */ | 217 | */ |
218 | 218 | ||
219 | GLOBAL(djpeg_dest_ptr) | 219 | GLOBAL(djpeg_dest_ptr) |
220 | jinit_write_ppm (j_decompress_ptr cinfo) | 220 | jinit_write_ppm (j_decompress_ptr cinfo) |
221 | { | 221 | { |
222 | ppm_dest_ptr dest; | 222 | ppm_dest_ptr dest; |
223 | 223 | ||
224 | /* Create module interface object, fill in method pointers */ | 224 | /* Create module interface object, fill in method pointers */ |
225 | dest = (ppm_dest_ptr) | 225 | dest = (ppm_dest_ptr) |
226 | (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, | 226 | (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, |
227 | SIZEOF(ppm_dest_struct)); | 227 | SIZEOF(ppm_dest_struct)); |
228 | dest->pub.start_output = start_output_ppm; | 228 | dest->pub.start_output = start_output_ppm; |
229 | dest->pub.finish_output = finish_output_ppm; | 229 | dest->pub.finish_output = finish_output_ppm; |
230 | 230 | ||
231 | /* Calculate output image dimensions so we can allocate space */ | 231 | /* Calculate output image dimensions so we can allocate space */ |
232 | jpeg_calc_output_dimensions(cinfo); | 232 | jpeg_calc_output_dimensions(cinfo); |
233 | 233 | ||
234 | /* Create physical I/O buffer. Note we make this near on a PC. */ | 234 | /* Create physical I/O buffer. Note we make this near on a PC. */ |
235 | dest->samples_per_row = cinfo->output_width * cinfo->out_color_components; | 235 | dest->samples_per_row = cinfo->output_width * cinfo->out_color_components; |
236 | dest->buffer_width = dest->samples_per_row * (BYTESPERSAMPLE * SIZEOF(char)); | 236 | dest->buffer_width = dest->samples_per_row * (BYTESPERSAMPLE * SIZEOF(char)); |
237 | dest->iobuffer = (char *) (*cinfo->mem->alloc_small) | 237 | dest->iobuffer = (char *) (*cinfo->mem->alloc_small) |
238 | ((j_common_ptr) cinfo, JPOOL_IMAGE, dest->buffer_width); | 238 | ((j_common_ptr) cinfo, JPOOL_IMAGE, dest->buffer_width); |
239 | 239 | ||
240 | if (cinfo->quantize_colors || BITS_IN_JSAMPLE != 8 || | 240 | if (cinfo->quantize_colors || BITS_IN_JSAMPLE != 8 || |
241 | SIZEOF(JSAMPLE) != SIZEOF(char)) { | 241 | SIZEOF(JSAMPLE) != SIZEOF(char)) { |
242 | /* When quantizing, we need an output buffer for colormap indexes | 242 | /* When quantizing, we need an output buffer for colormap indexes |
243 | * that's separate from the physical I/O buffer. We also need a | 243 | * that's separate from the physical I/O buffer. We also need a |
244 | * separate buffer if pixel format translation must take place. | 244 | * separate buffer if pixel format translation must take place. |
245 | */ | 245 | */ |
246 | dest->pub.buffer = (*cinfo->mem->alloc_sarray) | 246 | dest->pub.buffer = (*cinfo->mem->alloc_sarray) |
247 | ((j_common_ptr) cinfo, JPOOL_IMAGE, | 247 | ((j_common_ptr) cinfo, JPOOL_IMAGE, |
248 | cinfo->output_width * cinfo->output_components, (JDIMENSION) 1); | 248 | cinfo->output_width * cinfo->output_components, (JDIMENSION) 1); |
249 | dest->pub.buffer_height = 1; | 249 | dest->pub.buffer_height = 1; |
250 | if (! cinfo->quantize_colors) | 250 | if (! cinfo->quantize_colors) |
251 | dest->pub.put_pixel_rows = copy_pixel_rows; | 251 | dest->pub.put_pixel_rows = copy_pixel_rows; |
252 | else if (cinfo->out_color_space == JCS_GRAYSCALE) | 252 | else if (cinfo->out_color_space == JCS_GRAYSCALE) |
253 | dest->pub.put_pixel_rows = put_demapped_gray; | 253 | dest->pub.put_pixel_rows = put_demapped_gray; |
254 | else | 254 | else |
255 | dest->pub.put_pixel_rows = put_demapped_rgb; | 255 | dest->pub.put_pixel_rows = put_demapped_rgb; |
256 | } else { | 256 | } else { |
257 | /* We will fwrite() directly from decompressor output buffer. */ | 257 | /* We will fwrite() directly from decompressor output buffer. */ |
258 | /* Synthesize a JSAMPARRAY pointer structure */ | 258 | /* Synthesize a JSAMPARRAY pointer structure */ |
259 | /* Cast here implies near->far pointer conversion on PCs */ | 259 | /* Cast here implies near->far pointer conversion on PCs */ |
260 | dest->pixrow = (JSAMPROW) dest->iobuffer; | 260 | dest->pixrow = (JSAMPROW) dest->iobuffer; |
261 | dest->pub.buffer = & dest->pixrow; | 261 | dest->pub.buffer = & dest->pixrow; |
262 | dest->pub.buffer_height = 1; | 262 | dest->pub.buffer_height = 1; |
263 | dest->pub.put_pixel_rows = put_pixel_rows; | 263 | dest->pub.put_pixel_rows = put_pixel_rows; |
264 | } | 264 | } |
265 | 265 | ||
266 | return (djpeg_dest_ptr) dest; | 266 | return (djpeg_dest_ptr) dest; |
267 | } | 267 | } |
268 | 268 | ||
269 | #endif /* PPM_SUPPORTED */ | 269 | #endif /* PPM_SUPPORTED */ |