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author | David Walter Seikel | 2014-01-13 19:47:58 +1000 |
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committer | David Walter Seikel | 2014-01-13 19:47:58 +1000 |
commit | f9158592e1478b2013afc7041d9ed041cf2d2f4a (patch) | |
tree | b16e389d7988700e21b4c9741044cefa536dcbae /libraries/irrlicht-1.8/source/Irrlicht/jpeglib/wrrle.c | |
parent | Libraries readme updated with change markers and more of the Irrlicht changes. (diff) | |
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Update Irrlicht to 1.8.1. Include actual change markers this time. lol
Diffstat (limited to 'libraries/irrlicht-1.8/source/Irrlicht/jpeglib/wrrle.c')
-rw-r--r-- | libraries/irrlicht-1.8/source/Irrlicht/jpeglib/wrrle.c | 305 |
1 files changed, 0 insertions, 305 deletions
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/wrrle.c b/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/wrrle.c deleted file mode 100644 index a4e7337..0000000 --- a/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/wrrle.c +++ /dev/null | |||
@@ -1,305 +0,0 @@ | |||
1 | /* | ||
2 | * wrrle.c | ||
3 | * | ||
4 | * Copyright (C) 1991-1996, Thomas G. Lane. | ||
5 | * This file is part of the Independent JPEG Group's software. | ||
6 | * For conditions of distribution and use, see the accompanying README file. | ||
7 | * | ||
8 | * This file contains routines to write output images in RLE format. | ||
9 | * The Utah Raster Toolkit library is required (version 3.1 or later). | ||
10 | * | ||
11 | * These routines may need modification for non-Unix environments or | ||
12 | * specialized applications. As they stand, they assume output to | ||
13 | * an ordinary stdio stream. | ||
14 | * | ||
15 | * Based on code contributed by Mike Lijewski, | ||
16 | * with updates from Robert Hutchinson. | ||
17 | */ | ||
18 | |||
19 | #include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ | ||
20 | |||
21 | #ifdef RLE_SUPPORTED | ||
22 | |||
23 | /* rle.h is provided by the Utah Raster Toolkit. */ | ||
24 | |||
25 | #include <rle.h> | ||
26 | |||
27 | /* | ||
28 | * We assume that JSAMPLE has the same representation as rle_pixel, | ||
29 | * to wit, "unsigned char". Hence we can't cope with 12- or 16-bit samples. | ||
30 | */ | ||
31 | |||
32 | #if BITS_IN_JSAMPLE != 8 | ||
33 | Sorry, this code only copes with 8-bit JSAMPLEs. /* deliberate syntax err */ | ||
34 | #endif | ||
35 | |||
36 | |||
37 | /* | ||
38 | * Since RLE stores scanlines bottom-to-top, we have to invert the image | ||
39 | * from JPEG's top-to-bottom order. To do this, we save the outgoing data | ||
40 | * in a virtual array during put_pixel_row calls, then actually emit the | ||
41 | * RLE file during finish_output. | ||
42 | */ | ||
43 | |||
44 | |||
45 | /* | ||
46 | * For now, if we emit an RLE color map then it is always 256 entries long, | ||
47 | * though not all of the entries need be used. | ||
48 | */ | ||
49 | |||
50 | #define CMAPBITS 8 | ||
51 | #define CMAPLENGTH (1<<(CMAPBITS)) | ||
52 | |||
53 | typedef struct { | ||
54 | struct djpeg_dest_struct pub; /* public fields */ | ||
55 | |||
56 | jvirt_sarray_ptr image; /* virtual array to store the output image */ | ||
57 | rle_map *colormap; /* RLE-style color map, or NULL if none */ | ||
58 | rle_pixel **rle_row; /* To pass rows to rle_putrow() */ | ||
59 | |||
60 | } rle_dest_struct; | ||
61 | |||
62 | typedef rle_dest_struct * rle_dest_ptr; | ||
63 | |||
64 | /* Forward declarations */ | ||
65 | METHODDEF(void) rle_put_pixel_rows | ||
66 | JPP((j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, | ||
67 | JDIMENSION rows_supplied)); | ||
68 | |||
69 | |||
70 | /* | ||
71 | * Write the file header. | ||
72 | * | ||
73 | * In this module it's easier to wait till finish_output to write anything. | ||
74 | */ | ||
75 | |||
76 | METHODDEF(void) | ||
77 | start_output_rle (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) | ||
78 | { | ||
79 | rle_dest_ptr dest = (rle_dest_ptr) dinfo; | ||
80 | size_t cmapsize; | ||
81 | int i, ci; | ||
82 | #ifdef PROGRESS_REPORT | ||
83 | cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; | ||
84 | #endif | ||
85 | |||
86 | /* | ||
87 | * Make sure the image can be stored in RLE format. | ||
88 | * | ||
89 | * - RLE stores image dimensions as *signed* 16 bit integers. JPEG | ||
90 | * uses unsigned, so we have to check the width. | ||
91 | * | ||
92 | * - Colorspace is expected to be grayscale or RGB. | ||
93 | * | ||
94 | * - The number of channels (components) is expected to be 1 (grayscale/ | ||
95 | * pseudocolor) or 3 (truecolor/directcolor). | ||
96 | * (could be 2 or 4 if using an alpha channel, but we aren't) | ||
97 | */ | ||
98 | |||
99 | if (cinfo->output_width > 32767 || cinfo->output_height > 32767) | ||
100 | ERREXIT2(cinfo, JERR_RLE_DIMENSIONS, cinfo->output_width, | ||
101 | cinfo->output_height); | ||
102 | |||
103 | if (cinfo->out_color_space != JCS_GRAYSCALE && | ||
104 | cinfo->out_color_space != JCS_RGB) | ||
105 | ERREXIT(cinfo, JERR_RLE_COLORSPACE); | ||
106 | |||
107 | if (cinfo->output_components != 1 && cinfo->output_components != 3) | ||
108 | ERREXIT1(cinfo, JERR_RLE_TOOMANYCHANNELS, cinfo->num_components); | ||
109 | |||
110 | /* Convert colormap, if any, to RLE format. */ | ||
111 | |||
112 | dest->colormap = NULL; | ||
113 | |||
114 | if (cinfo->quantize_colors) { | ||
115 | /* Allocate storage for RLE-style cmap, zero any extra entries */ | ||
116 | cmapsize = cinfo->out_color_components * CMAPLENGTH * SIZEOF(rle_map); | ||
117 | dest->colormap = (rle_map *) (*cinfo->mem->alloc_small) | ||
118 | ((j_common_ptr) cinfo, JPOOL_IMAGE, cmapsize); | ||
119 | MEMZERO(dest->colormap, cmapsize); | ||
120 | |||
121 | /* Save away data in RLE format --- note 8-bit left shift! */ | ||
122 | /* Shifting would need adjustment for JSAMPLEs wider than 8 bits. */ | ||
123 | for (ci = 0; ci < cinfo->out_color_components; ci++) { | ||
124 | for (i = 0; i < cinfo->actual_number_of_colors; i++) { | ||
125 | dest->colormap[ci * CMAPLENGTH + i] = | ||
126 | GETJSAMPLE(cinfo->colormap[ci][i]) << 8; | ||
127 | } | ||
128 | } | ||
129 | } | ||
130 | |||
131 | /* Set the output buffer to the first row */ | ||
132 | dest->pub.buffer = (*cinfo->mem->access_virt_sarray) | ||
133 | ((j_common_ptr) cinfo, dest->image, (JDIMENSION) 0, (JDIMENSION) 1, TRUE); | ||
134 | dest->pub.buffer_height = 1; | ||
135 | |||
136 | dest->pub.put_pixel_rows = rle_put_pixel_rows; | ||
137 | |||
138 | #ifdef PROGRESS_REPORT | ||
139 | if (progress != NULL) { | ||
140 | progress->total_extra_passes++; /* count file writing as separate pass */ | ||
141 | } | ||
142 | #endif | ||
143 | } | ||
144 | |||
145 | |||
146 | /* | ||
147 | * Write some pixel data. | ||
148 | * | ||
149 | * This routine just saves the data away in a virtual array. | ||
150 | */ | ||
151 | |||
152 | METHODDEF(void) | ||
153 | rle_put_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, | ||
154 | JDIMENSION rows_supplied) | ||
155 | { | ||
156 | rle_dest_ptr dest = (rle_dest_ptr) dinfo; | ||
157 | |||
158 | if (cinfo->output_scanline < cinfo->output_height) { | ||
159 | dest->pub.buffer = (*cinfo->mem->access_virt_sarray) | ||
160 | ((j_common_ptr) cinfo, dest->image, | ||
161 | cinfo->output_scanline, (JDIMENSION) 1, TRUE); | ||
162 | } | ||
163 | } | ||
164 | |||
165 | /* | ||
166 | * Finish up at the end of the file. | ||
167 | * | ||
168 | * Here is where we really output the RLE file. | ||
169 | */ | ||
170 | |||
171 | METHODDEF(void) | ||
172 | finish_output_rle (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) | ||
173 | { | ||
174 | rle_dest_ptr dest = (rle_dest_ptr) dinfo; | ||
175 | rle_hdr header; /* Output file information */ | ||
176 | rle_pixel **rle_row, *red, *green, *blue; | ||
177 | JSAMPROW output_row; | ||
178 | char cmapcomment[80]; | ||
179 | int row, col; | ||
180 | int ci; | ||
181 | #ifdef PROGRESS_REPORT | ||
182 | cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; | ||
183 | #endif | ||
184 | |||
185 | /* Initialize the header info */ | ||
186 | header = *rle_hdr_init(NULL); | ||
187 | header.rle_file = dest->pub.output_file; | ||
188 | header.xmin = 0; | ||
189 | header.xmax = cinfo->output_width - 1; | ||
190 | header.ymin = 0; | ||
191 | header.ymax = cinfo->output_height - 1; | ||
192 | header.alpha = 0; | ||
193 | header.ncolors = cinfo->output_components; | ||
194 | for (ci = 0; ci < cinfo->output_components; ci++) { | ||
195 | RLE_SET_BIT(header, ci); | ||
196 | } | ||
197 | if (cinfo->quantize_colors) { | ||
198 | header.ncmap = cinfo->out_color_components; | ||
199 | header.cmaplen = CMAPBITS; | ||
200 | header.cmap = dest->colormap; | ||
201 | /* Add a comment to the output image with the true colormap length. */ | ||
202 | sprintf(cmapcomment, "color_map_length=%d", cinfo->actual_number_of_colors); | ||
203 | rle_putcom(cmapcomment, &header); | ||
204 | } | ||
205 | |||
206 | /* Emit the RLE header and color map (if any) */ | ||
207 | rle_put_setup(&header); | ||
208 | |||
209 | /* Now output the RLE data from our virtual array. | ||
210 | * We assume here that (a) rle_pixel is represented the same as JSAMPLE, | ||
211 | * and (b) we are not on a machine where FAR pointers differ from regular. | ||
212 | */ | ||
213 | |||
214 | #ifdef PROGRESS_REPORT | ||
215 | if (progress != NULL) { | ||
216 | progress->pub.pass_limit = cinfo->output_height; | ||
217 | progress->pub.pass_counter = 0; | ||
218 | (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); | ||
219 | } | ||
220 | #endif | ||
221 | |||
222 | if (cinfo->output_components == 1) { | ||
223 | for (row = cinfo->output_height-1; row >= 0; row--) { | ||
224 | rle_row = (rle_pixel **) (*cinfo->mem->access_virt_sarray) | ||
225 | ((j_common_ptr) cinfo, dest->image, | ||
226 | (JDIMENSION) row, (JDIMENSION) 1, FALSE); | ||
227 | rle_putrow(rle_row, (int) cinfo->output_width, &header); | ||
228 | #ifdef PROGRESS_REPORT | ||
229 | if (progress != NULL) { | ||
230 | progress->pub.pass_counter++; | ||
231 | (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); | ||
232 | } | ||
233 | #endif | ||
234 | } | ||
235 | } else { | ||
236 | for (row = cinfo->output_height-1; row >= 0; row--) { | ||
237 | rle_row = (rle_pixel **) dest->rle_row; | ||
238 | output_row = * (*cinfo->mem->access_virt_sarray) | ||
239 | ((j_common_ptr) cinfo, dest->image, | ||
240 | (JDIMENSION) row, (JDIMENSION) 1, FALSE); | ||
241 | red = rle_row[0]; | ||
242 | green = rle_row[1]; | ||
243 | blue = rle_row[2]; | ||
244 | for (col = cinfo->output_width; col > 0; col--) { | ||
245 | *red++ = GETJSAMPLE(*output_row++); | ||
246 | *green++ = GETJSAMPLE(*output_row++); | ||
247 | *blue++ = GETJSAMPLE(*output_row++); | ||
248 | } | ||
249 | rle_putrow(rle_row, (int) cinfo->output_width, &header); | ||
250 | #ifdef PROGRESS_REPORT | ||
251 | if (progress != NULL) { | ||
252 | progress->pub.pass_counter++; | ||
253 | (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); | ||
254 | } | ||
255 | #endif | ||
256 | } | ||
257 | } | ||
258 | |||
259 | #ifdef PROGRESS_REPORT | ||
260 | if (progress != NULL) | ||
261 | progress->completed_extra_passes++; | ||
262 | #endif | ||
263 | |||
264 | /* Emit file trailer */ | ||
265 | rle_puteof(&header); | ||
266 | fflush(dest->pub.output_file); | ||
267 | if (ferror(dest->pub.output_file)) | ||
268 | ERREXIT(cinfo, JERR_FILE_WRITE); | ||
269 | } | ||
270 | |||
271 | |||
272 | /* | ||
273 | * The module selection routine for RLE format output. | ||
274 | */ | ||
275 | |||
276 | GLOBAL(djpeg_dest_ptr) | ||
277 | jinit_write_rle (j_decompress_ptr cinfo) | ||
278 | { | ||
279 | rle_dest_ptr dest; | ||
280 | |||
281 | /* Create module interface object, fill in method pointers */ | ||
282 | dest = (rle_dest_ptr) | ||
283 | (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, | ||
284 | SIZEOF(rle_dest_struct)); | ||
285 | dest->pub.start_output = start_output_rle; | ||
286 | dest->pub.finish_output = finish_output_rle; | ||
287 | |||
288 | /* Calculate output image dimensions so we can allocate space */ | ||
289 | jpeg_calc_output_dimensions(cinfo); | ||
290 | |||
291 | /* Allocate a work array for output to the RLE library. */ | ||
292 | dest->rle_row = (*cinfo->mem->alloc_sarray) | ||
293 | ((j_common_ptr) cinfo, JPOOL_IMAGE, | ||
294 | cinfo->output_width, (JDIMENSION) cinfo->output_components); | ||
295 | |||
296 | /* Allocate a virtual array to hold the image. */ | ||
297 | dest->image = (*cinfo->mem->request_virt_sarray) | ||
298 | ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, | ||
299 | (JDIMENSION) (cinfo->output_width * cinfo->output_components), | ||
300 | cinfo->output_height, (JDIMENSION) 1); | ||
301 | |||
302 | return (djpeg_dest_ptr) dest; | ||
303 | } | ||
304 | |||
305 | #endif /* RLE_SUPPORTED */ | ||