Lines Matching refs:cinfo
46 initial_setup (j_compress_ptr cinfo)
55 if (cinfo->image_height <= 0 || cinfo->image_width <= 0
56 || cinfo->num_components <= 0 || cinfo->input_components <= 0)
57 ERREXIT(cinfo, JERR_EMPTY_IMAGE);
60 if ((long) cinfo->image_height > (long) JPEG_MAX_DIMENSION ||
61 (long) cinfo->image_width > (long) JPEG_MAX_DIMENSION)
62 ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int) JPEG_MAX_DIMENSION);
65 samplesperrow = (long) cinfo->image_width * (long) cinfo->input_components;
68 ERREXIT(cinfo, JERR_WIDTH_OVERFLOW);
71 if (cinfo->data_precision != BITS_IN_JSAMPLE)
72 ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
75 if (cinfo->num_components > MAX_COMPONENTS)
76 ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components,
80 cinfo->max_h_samp_factor = 1;
81 cinfo->max_v_samp_factor = 1;
82 for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
86 ERREXIT(cinfo, JERR_BAD_SAMPLING);
87 cinfo->max_h_samp_factor = MAX(cinfo->max_h_samp_factor,
89 cinfo->max_v_samp_factor = MAX(cinfo->max_v_samp_factor,
94 for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
102 jdiv_round_up((long) cinfo->image_width * (long) compptr->h_samp_factor,
103 (long) (cinfo->max_h_samp_factor * DCTSIZE));
105 jdiv_round_up((long) cinfo->image_height * (long) compptr->v_samp_factor,
106 (long) (cinfo->max_v_samp_factor * DCTSIZE));
109 jdiv_round_up((long) cinfo->image_width * (long) compptr->h_samp_factor,
110 (long) cinfo->max_h_samp_factor);
112 jdiv_round_up((long) cinfo->image_height * (long) compptr->v_samp_factor,
113 (long) cinfo->max_v_samp_factor);
121 cinfo->total_iMCU_rows = (JDIMENSION)
122 jdiv_round_up((long) cinfo->image_height,
123 (long) (cinfo->max_v_samp_factor*DCTSIZE));
130 validate_script (j_compress_ptr cinfo)
131 /* Verify that the scan script in cinfo->scan_info[] is valid; also
132 * determine whether it uses progressive JPEG, and set cinfo->progressive_mode.
145 if (cinfo->num_scans <= 0)
146 ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, 0);
151 scanptr = cinfo->scan_info;
154 cinfo->progressive_mode = TRUE;
156 for (ci = 0; ci < cinfo->num_components; ci++)
160 ERREXIT(cinfo, JERR_NOT_COMPILED);
163 cinfo->progressive_mode = FALSE;
164 for (ci = 0; ci < cinfo->num_components; ci++)
168 for (scanno = 1; scanno <= cinfo->num_scans; scanptr++, scanno++) {
172 ERREXIT2(cinfo, JERR_COMPONENT_COUNT, ncomps, MAX_COMPS_IN_SCAN);
175 if (thisi < 0 || thisi >= cinfo->num_components)
176 ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, scanno);
179 ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, scanno);
186 if (cinfo->progressive_mode) {
202 ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno);
205 ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno);
208 ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno);
213 ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno);
218 ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno);
222 ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno);
231 ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno);
236 ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, scanno);
243 if (cinfo->progressive_mode) {
250 for (ci = 0; ci < cinfo->num_components; ci++) {
252 ERREXIT(cinfo, JERR_MISSING_DATA);
256 for (ci = 0; ci < cinfo->num_components; ci++) {
258 ERREXIT(cinfo, JERR_MISSING_DATA);
267 select_scan_parameters (j_compress_ptr cinfo)
273 if (cinfo->scan_info != NULL) {
275 my_master_ptr master = (my_master_ptr) cinfo->master;
276 const jpeg_scan_info * scanptr = cinfo->scan_info + master->scan_number;
278 cinfo->comps_in_scan = scanptr->comps_in_scan;
280 cinfo->cur_comp_info[ci] =
281 &cinfo->comp_info[scanptr->component_index[ci]];
283 cinfo->Ss = scanptr->Ss;
284 cinfo->Se = scanptr->Se;
285 cinfo->Ah = scanptr->Ah;
286 cinfo->Al = scanptr->Al;
292 if (cinfo->num_components > MAX_COMPS_IN_SCAN)
293 ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components,
295 cinfo->comps_in_scan = cinfo->num_components;
296 for (ci = 0; ci < cinfo->num_components; ci++) {
297 cinfo->cur_comp_info[ci] = &cinfo->comp_info[ci];
299 cinfo->Ss = 0;
300 cinfo->Se = DCTSIZE2-1;
301 cinfo->Ah = 0;
302 cinfo->Al = 0;
308 per_scan_setup (j_compress_ptr cinfo)
310 /* cinfo->comps_in_scan and cinfo->cur_comp_info[] are already set */
315 if (cinfo->comps_in_scan == 1) {
318 compptr = cinfo->cur_comp_info[0];
321 cinfo->MCUs_per_row = compptr->width_in_blocks;
322 cinfo->MCU_rows_in_scan = compptr->height_in_blocks;
338 cinfo->blocks_in_MCU = 1;
339 cinfo->MCU_membership[0] = 0;
344 if (cinfo->comps_in_scan <= 0 || cinfo->comps_in_scan > MAX_COMPS_IN_SCAN)
345 ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->comps_in_scan,
349 cinfo->MCUs_per_row = (JDIMENSION)
350 jdiv_round_up((long) cinfo->image_width,
351 (long) (cinfo->max_h_samp_factor*DCTSIZE));
352 cinfo->MCU_rows_in_scan = (JDIMENSION)
353 jdiv_round_up((long) cinfo->image_height,
354 (long) (cinfo->max_v_samp_factor*DCTSIZE));
356 cinfo->blocks_in_MCU = 0;
358 for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
359 compptr = cinfo->cur_comp_info[ci];
374 if (cinfo->blocks_in_MCU + mcublks > C_MAX_BLOCKS_IN_MCU)
375 ERREXIT(cinfo, JERR_BAD_MCU_SIZE);
377 cinfo->MCU_membership[cinfo->blocks_in_MCU++] = ci;
385 if (cinfo->restart_in_rows > 0) {
386 long nominal = (long) cinfo->restart_in_rows * (long) cinfo->MCUs_per_row;
387 cinfo->restart_interval = (unsigned int) MIN(nominal, 65535L);
401 prepare_for_pass (j_compress_ptr cinfo)
403 my_master_ptr master = (my_master_ptr) cinfo->master;
410 select_scan_parameters(cinfo);
411 per_scan_setup(cinfo);
412 if (! cinfo->raw_data_in) {
413 (*cinfo->cconvert->start_pass) (cinfo);
414 (*cinfo->downsample->start_pass) (cinfo);
415 (*cinfo->prep->start_pass) (cinfo, JBUF_PASS_THRU);
417 (*cinfo->fdct->start_pass) (cinfo);
418 (*cinfo->entropy->start_pass) (cinfo, cinfo->optimize_coding);
419 (*cinfo->coef->start_pass) (cinfo,
422 (*cinfo->main->start_pass) (cinfo, JBUF_PASS_THRU);
423 if (cinfo->optimize_coding) {
434 select_scan_parameters(cinfo);
435 per_scan_setup(cinfo);
436 if (cinfo->Ss != 0 || cinfo->Ah == 0 || cinfo->arith_code) {
437 (*cinfo->entropy->start_pass) (cinfo, TRUE);
438 (*cinfo->coef->start_pass) (cinfo, JBUF_CRANK_DEST);
452 if (! cinfo->optimize_coding) {
453 select_scan_parameters(cinfo);
454 per_scan_setup(cinfo);
456 (*cinfo->entropy->start_pass) (cinfo, FALSE);
457 (*cinfo->coef->start_pass) (cinfo, JBUF_CRANK_DEST);
460 (*cinfo->marker->write_frame_header) (cinfo);
461 (*cinfo->marker->write_scan_header) (cinfo);
465 ERREXIT(cinfo, JERR_NOT_COMPILED);
471 if (cinfo->progress != NULL) {
472 cinfo->progress->completed_passes = master->pass_number;
473 cinfo->progress->total_passes = master->total_passes;
489 pass_startup (j_compress_ptr cinfo)
491 cinfo->master->call_pass_startup = FALSE; /* reset flag so call only once */
493 (*cinfo->marker->write_frame_header) (cinfo);
494 (*cinfo->marker->write_scan_header) (cinfo);
503 finish_pass_master (j_compress_ptr cinfo)
505 my_master_ptr master = (my_master_ptr) cinfo->master;
510 (*cinfo->entropy->finish_pass) (cinfo);
519 if (! cinfo->optimize_coding)
528 if (cinfo->optimize_coding)
543 jinit_c_master_control (j_compress_ptr cinfo, boolean transcode_only)
548 (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
550 cinfo->master = (struct jpeg_comp_master *) master;
557 initial_setup(cinfo);
559 if (cinfo->scan_info != NULL) {
561 validate_script(cinfo);
563 ERREXIT(cinfo, JERR_NOT_COMPILED);
566 cinfo->progressive_mode = FALSE;
567 cinfo->num_scans = 1;
570 if (cinfo->progressive_mode) /* TEMPORARY HACK ??? */
571 cinfo->optimize_coding = TRUE; /* assume default tables no good for progressive mode */
576 if (cinfo->optimize_coding)
586 if (cinfo->optimize_coding)
587 master->total_passes = cinfo->num_scans * 2;
589 master->total_passes = cinfo->num_scans;