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authorDavid Walter Seikel2013-01-13 18:54:10 +1000
committerDavid Walter Seikel2013-01-13 18:54:10 +1000
commit959831f4ef5a3e797f576c3de08cd65032c997ad (patch)
treee7351908be5995f0b325b2ebeaa02d5a34b82583 /libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcmainct.c
parentAdd info about changes to Irrlicht. (diff)
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Remove damned ancient DOS line endings from Irrlicht. Hopefully I did not go overboard.
Diffstat (limited to 'libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcmainct.c')
-rw-r--r--libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcmainct.c586
1 files changed, 293 insertions, 293 deletions
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcmainct.c b/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcmainct.c
index 669b7bb..7de75d1 100644
--- a/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcmainct.c
+++ b/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcmainct.c
@@ -1,293 +1,293 @@
1/* 1/*
2 * jcmainct.c 2 * jcmainct.c
3 * 3 *
4 * Copyright (C) 1994-1996, Thomas G. Lane. 4 * Copyright (C) 1994-1996, Thomas G. Lane.
5 * This file is part of the Independent JPEG Group's software. 5 * This file is part of the Independent JPEG Group's software.
6 * For conditions of distribution and use, see the accompanying README file. 6 * For conditions of distribution and use, see the accompanying README file.
7 * 7 *
8 * This file contains the main buffer controller for compression. 8 * This file contains the main buffer controller for compression.
9 * The main buffer lies between the pre-processor and the JPEG 9 * The main buffer lies between the pre-processor and the JPEG
10 * compressor proper; it holds downsampled data in the JPEG colorspace. 10 * compressor proper; it holds downsampled data in the JPEG colorspace.
11 */ 11 */
12 12
13#define JPEG_INTERNALS 13#define JPEG_INTERNALS
14#include "jinclude.h" 14#include "jinclude.h"
15#include "jpeglib.h" 15#include "jpeglib.h"
16 16
17 17
18/* Note: currently, there is no operating mode in which a full-image buffer 18/* Note: currently, there is no operating mode in which a full-image buffer
19 * is needed at this step. If there were, that mode could not be used with 19 * is needed at this step. If there were, that mode could not be used with
20 * "raw data" input, since this module is bypassed in that case. However, 20 * "raw data" input, since this module is bypassed in that case. However,
21 * we've left the code here for possible use in special applications. 21 * we've left the code here for possible use in special applications.
22 */ 22 */
23#undef FULL_MAIN_BUFFER_SUPPORTED 23#undef FULL_MAIN_BUFFER_SUPPORTED
24 24
25 25
26/* Private buffer controller object */ 26/* Private buffer controller object */
27 27
28typedef struct { 28typedef struct {
29 struct jpeg_c_main_controller pub; /* public fields */ 29 struct jpeg_c_main_controller pub; /* public fields */
30 30
31 JDIMENSION cur_iMCU_row; /* number of current iMCU row */ 31 JDIMENSION cur_iMCU_row; /* number of current iMCU row */
32 JDIMENSION rowgroup_ctr; /* counts row groups received in iMCU row */ 32 JDIMENSION rowgroup_ctr; /* counts row groups received in iMCU row */
33 boolean suspended; /* remember if we suspended output */ 33 boolean suspended; /* remember if we suspended output */
34 J_BUF_MODE pass_mode; /* current operating mode */ 34 J_BUF_MODE pass_mode; /* current operating mode */
35 35
36 /* If using just a strip buffer, this points to the entire set of buffers 36 /* If using just a strip buffer, this points to the entire set of buffers
37 * (we allocate one for each component). In the full-image case, this 37 * (we allocate one for each component). In the full-image case, this
38 * points to the currently accessible strips of the virtual arrays. 38 * points to the currently accessible strips of the virtual arrays.
39 */ 39 */
40 JSAMPARRAY buffer[MAX_COMPONENTS]; 40 JSAMPARRAY buffer[MAX_COMPONENTS];
41 41
42#ifdef FULL_MAIN_BUFFER_SUPPORTED 42#ifdef FULL_MAIN_BUFFER_SUPPORTED
43 /* If using full-image storage, this array holds pointers to virtual-array 43 /* If using full-image storage, this array holds pointers to virtual-array
44 * control blocks for each component. Unused if not full-image storage. 44 * control blocks for each component. Unused if not full-image storage.
45 */ 45 */
46 jvirt_sarray_ptr whole_image[MAX_COMPONENTS]; 46 jvirt_sarray_ptr whole_image[MAX_COMPONENTS];
47#endif 47#endif
48} my_main_controller; 48} my_main_controller;
49 49
50typedef my_main_controller * my_main_ptr; 50typedef my_main_controller * my_main_ptr;
51 51
52 52
53/* Forward declarations */ 53/* Forward declarations */
54METHODDEF(void) process_data_simple_main 54METHODDEF(void) process_data_simple_main
55 JPP((j_compress_ptr cinfo, JSAMPARRAY input_buf, 55 JPP((j_compress_ptr cinfo, JSAMPARRAY input_buf,
56 JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail)); 56 JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail));
57#ifdef FULL_MAIN_BUFFER_SUPPORTED 57#ifdef FULL_MAIN_BUFFER_SUPPORTED
58METHODDEF(void) process_data_buffer_main 58METHODDEF(void) process_data_buffer_main
59 JPP((j_compress_ptr cinfo, JSAMPARRAY input_buf, 59 JPP((j_compress_ptr cinfo, JSAMPARRAY input_buf,
60 JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail)); 60 JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail));
61#endif 61#endif
62 62
63 63
64/* 64/*
65 * Initialize for a processing pass. 65 * Initialize for a processing pass.
66 */ 66 */
67 67
68METHODDEF(void) 68METHODDEF(void)
69start_pass_main (j_compress_ptr cinfo, J_BUF_MODE pass_mode) 69start_pass_main (j_compress_ptr cinfo, J_BUF_MODE pass_mode)
70{ 70{
71 my_main_ptr main = (my_main_ptr) cinfo->main; 71 my_main_ptr main = (my_main_ptr) cinfo->main;
72 72
73 /* Do nothing in raw-data mode. */ 73 /* Do nothing in raw-data mode. */
74 if (cinfo->raw_data_in) 74 if (cinfo->raw_data_in)
75 return; 75 return;
76 76
77 main->cur_iMCU_row = 0; /* initialize counters */ 77 main->cur_iMCU_row = 0; /* initialize counters */
78 main->rowgroup_ctr = 0; 78 main->rowgroup_ctr = 0;
79 main->suspended = FALSE; 79 main->suspended = FALSE;
80 main->pass_mode = pass_mode; /* save mode for use by process_data */ 80 main->pass_mode = pass_mode; /* save mode for use by process_data */
81 81
82 switch (pass_mode) { 82 switch (pass_mode) {
83 case JBUF_PASS_THRU: 83 case JBUF_PASS_THRU:
84#ifdef FULL_MAIN_BUFFER_SUPPORTED 84#ifdef FULL_MAIN_BUFFER_SUPPORTED
85 if (main->whole_image[0] != NULL) 85 if (main->whole_image[0] != NULL)
86 ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); 86 ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
87#endif 87#endif
88 main->pub.process_data = process_data_simple_main; 88 main->pub.process_data = process_data_simple_main;
89 break; 89 break;
90#ifdef FULL_MAIN_BUFFER_SUPPORTED 90#ifdef FULL_MAIN_BUFFER_SUPPORTED
91 case JBUF_SAVE_SOURCE: 91 case JBUF_SAVE_SOURCE:
92 case JBUF_CRANK_DEST: 92 case JBUF_CRANK_DEST:
93 case JBUF_SAVE_AND_PASS: 93 case JBUF_SAVE_AND_PASS:
94 if (main->whole_image[0] == NULL) 94 if (main->whole_image[0] == NULL)
95 ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); 95 ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
96 main->pub.process_data = process_data_buffer_main; 96 main->pub.process_data = process_data_buffer_main;
97 break; 97 break;
98#endif 98#endif
99 default: 99 default:
100 ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); 100 ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
101 break; 101 break;
102 } 102 }
103} 103}
104 104
105 105
106/* 106/*
107 * Process some data. 107 * Process some data.
108 * This routine handles the simple pass-through mode, 108 * This routine handles the simple pass-through mode,
109 * where we have only a strip buffer. 109 * where we have only a strip buffer.
110 */ 110 */
111 111
112METHODDEF(void) 112METHODDEF(void)
113process_data_simple_main (j_compress_ptr cinfo, 113process_data_simple_main (j_compress_ptr cinfo,
114 JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, 114 JSAMPARRAY input_buf, JDIMENSION *in_row_ctr,
115 JDIMENSION in_rows_avail) 115 JDIMENSION in_rows_avail)
116{ 116{
117 my_main_ptr main = (my_main_ptr) cinfo->main; 117 my_main_ptr main = (my_main_ptr) cinfo->main;
118 118
119 while (main->cur_iMCU_row < cinfo->total_iMCU_rows) { 119 while (main->cur_iMCU_row < cinfo->total_iMCU_rows) {
120 /* Read input data if we haven't filled the main buffer yet */ 120 /* Read input data if we haven't filled the main buffer yet */
121 if (main->rowgroup_ctr < (JDIMENSION) cinfo->min_DCT_v_scaled_size) 121 if (main->rowgroup_ctr < (JDIMENSION) cinfo->min_DCT_v_scaled_size)
122 (*cinfo->prep->pre_process_data) (cinfo, 122 (*cinfo->prep->pre_process_data) (cinfo,
123 input_buf, in_row_ctr, in_rows_avail, 123 input_buf, in_row_ctr, in_rows_avail,
124 main->buffer, &main->rowgroup_ctr, 124 main->buffer, &main->rowgroup_ctr,
125 (JDIMENSION) cinfo->min_DCT_v_scaled_size); 125 (JDIMENSION) cinfo->min_DCT_v_scaled_size);
126 126
127 /* If we don't have a full iMCU row buffered, return to application for 127 /* If we don't have a full iMCU row buffered, return to application for
128 * more data. Note that preprocessor will always pad to fill the iMCU row 128 * more data. Note that preprocessor will always pad to fill the iMCU row
129 * at the bottom of the image. 129 * at the bottom of the image.
130 */ 130 */
131 if (main->rowgroup_ctr != (JDIMENSION) cinfo->min_DCT_v_scaled_size) 131 if (main->rowgroup_ctr != (JDIMENSION) cinfo->min_DCT_v_scaled_size)
132 return; 132 return;
133 133
134 /* Send the completed row to the compressor */ 134 /* Send the completed row to the compressor */
135 if (! (*cinfo->coef->compress_data) (cinfo, main->buffer)) { 135 if (! (*cinfo->coef->compress_data) (cinfo, main->buffer)) {
136 /* If compressor did not consume the whole row, then we must need to 136 /* If compressor did not consume the whole row, then we must need to
137 * suspend processing and return to the application. In this situation 137 * suspend processing and return to the application. In this situation
138 * we pretend we didn't yet consume the last input row; otherwise, if 138 * we pretend we didn't yet consume the last input row; otherwise, if
139 * it happened to be the last row of the image, the application would 139 * it happened to be the last row of the image, the application would
140 * think we were done. 140 * think we were done.
141 */ 141 */
142 if (! main->suspended) { 142 if (! main->suspended) {
143 (*in_row_ctr)--; 143 (*in_row_ctr)--;
144 main->suspended = TRUE; 144 main->suspended = TRUE;
145 } 145 }
146 return; 146 return;
147 } 147 }
148 /* We did finish the row. Undo our little suspension hack if a previous 148 /* We did finish the row. Undo our little suspension hack if a previous
149 * call suspended; then mark the main buffer empty. 149 * call suspended; then mark the main buffer empty.
150 */ 150 */
151 if (main->suspended) { 151 if (main->suspended) {
152 (*in_row_ctr)++; 152 (*in_row_ctr)++;
153 main->suspended = FALSE; 153 main->suspended = FALSE;
154 } 154 }
155 main->rowgroup_ctr = 0; 155 main->rowgroup_ctr = 0;
156 main->cur_iMCU_row++; 156 main->cur_iMCU_row++;
157 } 157 }
158} 158}
159 159
160 160
161#ifdef FULL_MAIN_BUFFER_SUPPORTED 161#ifdef FULL_MAIN_BUFFER_SUPPORTED
162 162
163/* 163/*
164 * Process some data. 164 * Process some data.
165 * This routine handles all of the modes that use a full-size buffer. 165 * This routine handles all of the modes that use a full-size buffer.
166 */ 166 */
167 167
168METHODDEF(void) 168METHODDEF(void)
169process_data_buffer_main (j_compress_ptr cinfo, 169process_data_buffer_main (j_compress_ptr cinfo,
170 JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, 170 JSAMPARRAY input_buf, JDIMENSION *in_row_ctr,
171 JDIMENSION in_rows_avail) 171 JDIMENSION in_rows_avail)
172{ 172{
173 my_main_ptr main = (my_main_ptr) cinfo->main; 173 my_main_ptr main = (my_main_ptr) cinfo->main;
174 int ci; 174 int ci;
175 jpeg_component_info *compptr; 175 jpeg_component_info *compptr;
176 boolean writing = (main->pass_mode != JBUF_CRANK_DEST); 176 boolean writing = (main->pass_mode != JBUF_CRANK_DEST);
177 177
178 while (main->cur_iMCU_row < cinfo->total_iMCU_rows) { 178 while (main->cur_iMCU_row < cinfo->total_iMCU_rows) {
179 /* Realign the virtual buffers if at the start of an iMCU row. */ 179 /* Realign the virtual buffers if at the start of an iMCU row. */
180 if (main->rowgroup_ctr == 0) { 180 if (main->rowgroup_ctr == 0) {
181 for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; 181 for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
182 ci++, compptr++) { 182 ci++, compptr++) {
183 main->buffer[ci] = (*cinfo->mem->access_virt_sarray) 183 main->buffer[ci] = (*cinfo->mem->access_virt_sarray)
184 ((j_common_ptr) cinfo, main->whole_image[ci], 184 ((j_common_ptr) cinfo, main->whole_image[ci],
185 main->cur_iMCU_row * (compptr->v_samp_factor * DCTSIZE), 185 main->cur_iMCU_row * (compptr->v_samp_factor * DCTSIZE),
186 (JDIMENSION) (compptr->v_samp_factor * DCTSIZE), writing); 186 (JDIMENSION) (compptr->v_samp_factor * DCTSIZE), writing);
187 } 187 }
188 /* In a read pass, pretend we just read some source data. */ 188 /* In a read pass, pretend we just read some source data. */
189 if (! writing) { 189 if (! writing) {
190 *in_row_ctr += cinfo->max_v_samp_factor * DCTSIZE; 190 *in_row_ctr += cinfo->max_v_samp_factor * DCTSIZE;
191 main->rowgroup_ctr = DCTSIZE; 191 main->rowgroup_ctr = DCTSIZE;
192 } 192 }
193 } 193 }
194 194
195 /* If a write pass, read input data until the current iMCU row is full. */ 195 /* If a write pass, read input data until the current iMCU row is full. */
196 /* Note: preprocessor will pad if necessary to fill the last iMCU row. */ 196 /* Note: preprocessor will pad if necessary to fill the last iMCU row. */
197 if (writing) { 197 if (writing) {
198 (*cinfo->prep->pre_process_data) (cinfo, 198 (*cinfo->prep->pre_process_data) (cinfo,
199 input_buf, in_row_ctr, in_rows_avail, 199 input_buf, in_row_ctr, in_rows_avail,
200 main->buffer, &main->rowgroup_ctr, 200 main->buffer, &main->rowgroup_ctr,
201 (JDIMENSION) DCTSIZE); 201 (JDIMENSION) DCTSIZE);
202 /* Return to application if we need more data to fill the iMCU row. */ 202 /* Return to application if we need more data to fill the iMCU row. */
203 if (main->rowgroup_ctr < DCTSIZE) 203 if (main->rowgroup_ctr < DCTSIZE)
204 return; 204 return;
205 } 205 }
206 206
207 /* Emit data, unless this is a sink-only pass. */ 207 /* Emit data, unless this is a sink-only pass. */
208 if (main->pass_mode != JBUF_SAVE_SOURCE) { 208 if (main->pass_mode != JBUF_SAVE_SOURCE) {
209 if (! (*cinfo->coef->compress_data) (cinfo, main->buffer)) { 209 if (! (*cinfo->coef->compress_data) (cinfo, main->buffer)) {
210 /* If compressor did not consume the whole row, then we must need to 210 /* If compressor did not consume the whole row, then we must need to
211 * suspend processing and return to the application. In this situation 211 * suspend processing and return to the application. In this situation
212 * we pretend we didn't yet consume the last input row; otherwise, if 212 * we pretend we didn't yet consume the last input row; otherwise, if
213 * it happened to be the last row of the image, the application would 213 * it happened to be the last row of the image, the application would
214 * think we were done. 214 * think we were done.
215 */ 215 */
216 if (! main->suspended) { 216 if (! main->suspended) {
217 (*in_row_ctr)--; 217 (*in_row_ctr)--;
218 main->suspended = TRUE; 218 main->suspended = TRUE;
219 } 219 }
220 return; 220 return;
221 } 221 }
222 /* We did finish the row. Undo our little suspension hack if a previous 222 /* We did finish the row. Undo our little suspension hack if a previous
223 * call suspended; then mark the main buffer empty. 223 * call suspended; then mark the main buffer empty.
224 */ 224 */
225 if (main->suspended) { 225 if (main->suspended) {
226 (*in_row_ctr)++; 226 (*in_row_ctr)++;
227 main->suspended = FALSE; 227 main->suspended = FALSE;
228 } 228 }
229 } 229 }
230 230
231 /* If get here, we are done with this iMCU row. Mark buffer empty. */ 231 /* If get here, we are done with this iMCU row. Mark buffer empty. */
232 main->rowgroup_ctr = 0; 232 main->rowgroup_ctr = 0;
233 main->cur_iMCU_row++; 233 main->cur_iMCU_row++;
234 } 234 }
235} 235}
236 236
237#endif /* FULL_MAIN_BUFFER_SUPPORTED */ 237#endif /* FULL_MAIN_BUFFER_SUPPORTED */
238 238
239 239
240/* 240/*
241 * Initialize main buffer controller. 241 * Initialize main buffer controller.
242 */ 242 */
243 243
244GLOBAL(void) 244GLOBAL(void)
245jinit_c_main_controller (j_compress_ptr cinfo, boolean need_full_buffer) 245jinit_c_main_controller (j_compress_ptr cinfo, boolean need_full_buffer)
246{ 246{
247 my_main_ptr main; 247 my_main_ptr main;
248 int ci; 248 int ci;
249 jpeg_component_info *compptr; 249 jpeg_component_info *compptr;
250 250
251 main = (my_main_ptr) 251 main = (my_main_ptr)
252 (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, 252 (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
253 SIZEOF(my_main_controller)); 253 SIZEOF(my_main_controller));
254 cinfo->main = (struct jpeg_c_main_controller *) main; 254 cinfo->main = (struct jpeg_c_main_controller *) main;
255 main->pub.start_pass = start_pass_main; 255 main->pub.start_pass = start_pass_main;
256 256
257 /* We don't need to create a buffer in raw-data mode. */ 257 /* We don't need to create a buffer in raw-data mode. */
258 if (cinfo->raw_data_in) 258 if (cinfo->raw_data_in)
259 return; 259 return;
260 260
261 /* Create the buffer. It holds downsampled data, so each component 261 /* Create the buffer. It holds downsampled data, so each component
262 * may be of a different size. 262 * may be of a different size.
263 */ 263 */
264 if (need_full_buffer) { 264 if (need_full_buffer) {
265#ifdef FULL_MAIN_BUFFER_SUPPORTED 265#ifdef FULL_MAIN_BUFFER_SUPPORTED
266 /* Allocate a full-image virtual array for each component */ 266 /* Allocate a full-image virtual array for each component */
267 /* Note we pad the bottom to a multiple of the iMCU height */ 267 /* Note we pad the bottom to a multiple of the iMCU height */
268 for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; 268 for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
269 ci++, compptr++) { 269 ci++, compptr++) {
270 main->whole_image[ci] = (*cinfo->mem->request_virt_sarray) 270 main->whole_image[ci] = (*cinfo->mem->request_virt_sarray)
271 ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, 271 ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE,
272 compptr->width_in_blocks * compptr->DCT_h_scaled_size, 272 compptr->width_in_blocks * compptr->DCT_h_scaled_size,
273 (JDIMENSION) jround_up((long) compptr->height_in_blocks, 273 (JDIMENSION) jround_up((long) compptr->height_in_blocks,
274 (long) compptr->v_samp_factor) * DCTSIZE, 274 (long) compptr->v_samp_factor) * DCTSIZE,
275 (JDIMENSION) (compptr->v_samp_factor * compptr->DCT_v_scaled_size)); 275 (JDIMENSION) (compptr->v_samp_factor * compptr->DCT_v_scaled_size));
276 } 276 }
277#else 277#else
278 ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); 278 ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
279#endif 279#endif
280 } else { 280 } else {
281#ifdef FULL_MAIN_BUFFER_SUPPORTED 281#ifdef FULL_MAIN_BUFFER_SUPPORTED
282 main->whole_image[0] = NULL; /* flag for no virtual arrays */ 282 main->whole_image[0] = NULL; /* flag for no virtual arrays */
283#endif 283#endif
284 /* Allocate a strip buffer for each component */ 284 /* Allocate a strip buffer for each component */
285 for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; 285 for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
286 ci++, compptr++) { 286 ci++, compptr++) {
287 main->buffer[ci] = (*cinfo->mem->alloc_sarray) 287 main->buffer[ci] = (*cinfo->mem->alloc_sarray)
288 ((j_common_ptr) cinfo, JPOOL_IMAGE, 288 ((j_common_ptr) cinfo, JPOOL_IMAGE,
289 compptr->width_in_blocks * compptr->DCT_h_scaled_size, 289 compptr->width_in_blocks * compptr->DCT_h_scaled_size,
290 (JDIMENSION) (compptr->v_samp_factor * compptr->DCT_v_scaled_size)); 290 (JDIMENSION) (compptr->v_samp_factor * compptr->DCT_v_scaled_size));
291 } 291 }
292 } 292 }
293} 293}