Lines Matching +full:ci +full:- +full:pass
5 * Copyright (C) 1991-1997, Thomas G. Lane.
6 * Modified 2003-2010 by Guido Vollbeding.
7 * libjpeg-turbo Modifications:
14 * and inter-pass control (determining the number of passes and the work
15 * to be done in each pass).
29 huff_opt_pass, /* Huffman code optimization pass */
30 output_pass /* data output pass */
36 c_pass_type pass_type; /* the type of the current pass */
44 * This is here so we can add libjpeg-turbo version/build information to the
47 * object and determine which version of libjpeg-turbo it was built from or
73 cinfo->jpeg_width = cinfo->image_width; in jpeg_calc_jpeg_dimensions()
74 cinfo->jpeg_height = cinfo->image_height; in jpeg_calc_jpeg_dimensions()
75 cinfo->min_DCT_h_scaled_size = DCTSIZE; in jpeg_calc_jpeg_dimensions()
76 cinfo->min_DCT_v_scaled_size = DCTSIZE; in jpeg_calc_jpeg_dimensions()
85 int ci; in initial_setup() local
98 if (cinfo->_jpeg_height <= 0 || cinfo->_jpeg_width <= 0 || in initial_setup()
99 cinfo->num_components <= 0 || cinfo->input_components <= 0) in initial_setup()
103 if ((long)cinfo->_jpeg_height > (long)JPEG_MAX_DIMENSION || in initial_setup()
104 (long)cinfo->_jpeg_width > (long)JPEG_MAX_DIMENSION) in initial_setup()
108 samplesperrow = (long)cinfo->image_width * (long)cinfo->input_components; in initial_setup()
113 /* For now, precision must match compiled-in value... */ in initial_setup()
114 if (cinfo->data_precision != BITS_IN_JSAMPLE) in initial_setup()
115 ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision); in initial_setup()
118 if (cinfo->num_components > MAX_COMPONENTS) in initial_setup()
119 ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components, in initial_setup()
123 cinfo->max_h_samp_factor = 1; in initial_setup()
124 cinfo->max_v_samp_factor = 1; in initial_setup()
125 for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; in initial_setup()
126 ci++, compptr++) { in initial_setup()
127 if (compptr->h_samp_factor <= 0 || in initial_setup()
128 compptr->h_samp_factor > MAX_SAMP_FACTOR || in initial_setup()
129 compptr->v_samp_factor <= 0 || in initial_setup()
130 compptr->v_samp_factor > MAX_SAMP_FACTOR) in initial_setup()
132 cinfo->max_h_samp_factor = MAX(cinfo->max_h_samp_factor, in initial_setup()
133 compptr->h_samp_factor); in initial_setup()
134 cinfo->max_v_samp_factor = MAX(cinfo->max_v_samp_factor, in initial_setup()
135 compptr->v_samp_factor); in initial_setup()
139 for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; in initial_setup()
140 ci++, compptr++) { in initial_setup()
142 compptr->component_index = ci; in initial_setup()
145 compptr->DCT_h_scaled_size = compptr->DCT_v_scaled_size = DCTSIZE; in initial_setup()
147 compptr->DCT_scaled_size = DCTSIZE; in initial_setup()
150 compptr->width_in_blocks = (JDIMENSION) in initial_setup()
151 jdiv_round_up((long)cinfo->_jpeg_width * (long)compptr->h_samp_factor, in initial_setup()
152 (long)(cinfo->max_h_samp_factor * DCTSIZE)); in initial_setup()
153 compptr->height_in_blocks = (JDIMENSION) in initial_setup()
154 jdiv_round_up((long)cinfo->_jpeg_height * (long)compptr->v_samp_factor, in initial_setup()
155 (long)(cinfo->max_v_samp_factor * DCTSIZE)); in initial_setup()
157 compptr->downsampled_width = (JDIMENSION) in initial_setup()
158 jdiv_round_up((long)cinfo->_jpeg_width * (long)compptr->h_samp_factor, in initial_setup()
159 (long)cinfo->max_h_samp_factor); in initial_setup()
160 compptr->downsampled_height = (JDIMENSION) in initial_setup()
161 jdiv_round_up((long)cinfo->_jpeg_height * (long)compptr->v_samp_factor, in initial_setup()
162 (long)cinfo->max_v_samp_factor); in initial_setup()
164 compptr->component_needed = TRUE; in initial_setup()
170 cinfo->total_iMCU_rows = (JDIMENSION) in initial_setup()
171 jdiv_round_up((long)cinfo->_jpeg_height, in initial_setup()
172 (long)(cinfo->max_v_samp_factor * DCTSIZE)); in initial_setup()
180 /* Verify that the scan script in cinfo->scan_info[] is valid; also in validate_script()
181 * determine whether it uses progressive JPEG, and set cinfo->progressive_mode. in validate_script()
185 int scanno, ncomps, ci, coefi, thisi; in validate_script() local
191 /* -1 until that coefficient has been seen; then last Al for it */ in validate_script()
194 if (cinfo->num_scans <= 0) in validate_script()
197 /* For sequential JPEG, all scans must have Ss=0, Se=DCTSIZE2-1; in validate_script()
200 scanptr = cinfo->scan_info; in validate_script()
201 if (scanptr->Ss != 0 || scanptr->Se != DCTSIZE2 - 1) { in validate_script()
203 cinfo->progressive_mode = TRUE; in validate_script()
205 for (ci = 0; ci < cinfo->num_components; ci++) in validate_script()
207 *last_bitpos_ptr++ = -1; in validate_script()
212 cinfo->progressive_mode = FALSE; in validate_script()
213 for (ci = 0; ci < cinfo->num_components; ci++) in validate_script()
214 component_sent[ci] = FALSE; in validate_script()
217 for (scanno = 1; scanno <= cinfo->num_scans; scanptr++, scanno++) { in validate_script()
219 ncomps = scanptr->comps_in_scan; in validate_script()
222 for (ci = 0; ci < ncomps; ci++) { in validate_script()
223 thisi = scanptr->component_index[ci]; in validate_script()
224 if (thisi < 0 || thisi >= cinfo->num_components) in validate_script()
227 if (ci > 0 && thisi <= scanptr->component_index[ci - 1]) in validate_script()
231 Ss = scanptr->Ss; in validate_script()
232 Se = scanptr->Se; in validate_script()
233 Ah = scanptr->Ah; in validate_script()
234 Al = scanptr->Al; in validate_script()
235 if (cinfo->progressive_mode) { in validate_script()
237 /* Rec. ITU-T T.81 | ISO/IEC 10918-1 simply gives the ranges 0..13 for Ah in validate_script()
239 * precision. Perhaps they really meant 0..N+1 for N-bit precision. in validate_script()
240 * Here we allow 0..10 for 8-bit data; Al larger than 10 results in in validate_script()
241 * out-of-range reconstructed DC values during the first DC scan, in validate_script()
259 for (ci = 0; ci < ncomps; ci++) { in validate_script()
260 last_bitpos_ptr = &last_bitpos[scanptr->component_index[ci]][0]; in validate_script()
270 if (Ah != last_bitpos_ptr[coefi] || Al != Ah - 1) in validate_script()
279 if (Ss != 0 || Se != DCTSIZE2 - 1 || Ah != 0 || Al != 0) in validate_script()
282 for (ci = 0; ci < ncomps; ci++) { in validate_script()
283 thisi = scanptr->component_index[ci]; in validate_script()
292 if (cinfo->progressive_mode) { in validate_script()
299 for (ci = 0; ci < cinfo->num_components; ci++) { in validate_script()
300 if (last_bitpos[ci][0] < 0) in validate_script()
305 for (ci = 0; ci < cinfo->num_components; ci++) { in validate_script()
306 if (!component_sent[ci]) in validate_script()
319 int ci; in select_scan_parameters() local
322 if (cinfo->scan_info != NULL) { in select_scan_parameters()
323 /* Prepare for current scan --- the script is already validated */ in select_scan_parameters()
324 my_master_ptr master = (my_master_ptr)cinfo->master; in select_scan_parameters()
325 const jpeg_scan_info *scanptr = cinfo->scan_info + master->scan_number; in select_scan_parameters()
327 cinfo->comps_in_scan = scanptr->comps_in_scan; in select_scan_parameters()
328 for (ci = 0; ci < scanptr->comps_in_scan; ci++) { in select_scan_parameters()
329 cinfo->cur_comp_info[ci] = in select_scan_parameters()
330 &cinfo->comp_info[scanptr->component_index[ci]]; in select_scan_parameters()
332 cinfo->Ss = scanptr->Ss; in select_scan_parameters()
333 cinfo->Se = scanptr->Se; in select_scan_parameters()
334 cinfo->Ah = scanptr->Ah; in select_scan_parameters()
335 cinfo->Al = scanptr->Al; in select_scan_parameters()
339 /* Prepare for single sequential-JPEG scan containing all components */ in select_scan_parameters()
340 if (cinfo->num_components > MAX_COMPS_IN_SCAN) in select_scan_parameters()
341 ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components, in select_scan_parameters()
343 cinfo->comps_in_scan = cinfo->num_components; in select_scan_parameters()
344 for (ci = 0; ci < cinfo->num_components; ci++) { in select_scan_parameters()
345 cinfo->cur_comp_info[ci] = &cinfo->comp_info[ci]; in select_scan_parameters()
347 cinfo->Ss = 0; in select_scan_parameters()
348 cinfo->Se = DCTSIZE2 - 1; in select_scan_parameters()
349 cinfo->Ah = 0; in select_scan_parameters()
350 cinfo->Al = 0; in select_scan_parameters()
358 /* cinfo->comps_in_scan and cinfo->cur_comp_info[] are already set */ in per_scan_setup()
360 int ci, mcublks, tmp; in per_scan_setup() local
363 if (cinfo->comps_in_scan == 1) { in per_scan_setup()
365 /* Noninterleaved (single-component) scan */ in per_scan_setup()
366 compptr = cinfo->cur_comp_info[0]; in per_scan_setup()
369 cinfo->MCUs_per_row = compptr->width_in_blocks; in per_scan_setup()
370 cinfo->MCU_rows_in_scan = compptr->height_in_blocks; in per_scan_setup()
373 compptr->MCU_width = 1; in per_scan_setup()
374 compptr->MCU_height = 1; in per_scan_setup()
375 compptr->MCU_blocks = 1; in per_scan_setup()
376 compptr->MCU_sample_width = DCTSIZE; in per_scan_setup()
377 compptr->last_col_width = 1; in per_scan_setup()
381 tmp = (int)(compptr->height_in_blocks % compptr->v_samp_factor); in per_scan_setup()
382 if (tmp == 0) tmp = compptr->v_samp_factor; in per_scan_setup()
383 compptr->last_row_height = tmp; in per_scan_setup()
386 cinfo->blocks_in_MCU = 1; in per_scan_setup()
387 cinfo->MCU_membership[0] = 0; in per_scan_setup()
391 /* Interleaved (multi-component) scan */ in per_scan_setup()
392 if (cinfo->comps_in_scan <= 0 || cinfo->comps_in_scan > MAX_COMPS_IN_SCAN) in per_scan_setup()
393 ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->comps_in_scan, in per_scan_setup()
397 cinfo->MCUs_per_row = (JDIMENSION) in per_scan_setup()
398 jdiv_round_up((long)cinfo->_jpeg_width, in per_scan_setup()
399 (long)(cinfo->max_h_samp_factor * DCTSIZE)); in per_scan_setup()
400 cinfo->MCU_rows_in_scan = (JDIMENSION) in per_scan_setup()
401 jdiv_round_up((long)cinfo->_jpeg_height, in per_scan_setup()
402 (long)(cinfo->max_v_samp_factor * DCTSIZE)); in per_scan_setup()
404 cinfo->blocks_in_MCU = 0; in per_scan_setup()
406 for (ci = 0; ci < cinfo->comps_in_scan; ci++) { in per_scan_setup()
407 compptr = cinfo->cur_comp_info[ci]; in per_scan_setup()
409 compptr->MCU_width = compptr->h_samp_factor; in per_scan_setup()
410 compptr->MCU_height = compptr->v_samp_factor; in per_scan_setup()
411 compptr->MCU_blocks = compptr->MCU_width * compptr->MCU_height; in per_scan_setup()
412 compptr->MCU_sample_width = compptr->MCU_width * DCTSIZE; in per_scan_setup()
413 /* Figure number of non-dummy blocks in last MCU column & row */ in per_scan_setup()
414 tmp = (int)(compptr->width_in_blocks % compptr->MCU_width); in per_scan_setup()
415 if (tmp == 0) tmp = compptr->MCU_width; in per_scan_setup()
416 compptr->last_col_width = tmp; in per_scan_setup()
417 tmp = (int)(compptr->height_in_blocks % compptr->MCU_height); in per_scan_setup()
418 if (tmp == 0) tmp = compptr->MCU_height; in per_scan_setup()
419 compptr->last_row_height = tmp; in per_scan_setup()
421 mcublks = compptr->MCU_blocks; in per_scan_setup()
422 if (cinfo->blocks_in_MCU + mcublks > C_MAX_BLOCKS_IN_MCU) in per_scan_setup()
424 while (mcublks-- > 0) { in per_scan_setup()
425 cinfo->MCU_membership[cinfo->blocks_in_MCU++] = ci; in per_scan_setup()
433 if (cinfo->restart_in_rows > 0) { in per_scan_setup()
434 long nominal = (long)cinfo->restart_in_rows * (long)cinfo->MCUs_per_row; in per_scan_setup()
435 cinfo->restart_interval = (unsigned int)MIN(nominal, 65535L); in per_scan_setup()
441 * Per-pass setup.
442 * This is called at the beginning of each pass. We determine which modules
443 * will be active during this pass and give them appropriate start_pass calls.
451 my_master_ptr master = (my_master_ptr)cinfo->master; in prepare_for_pass()
453 switch (master->pass_type) { in prepare_for_pass()
455 /* Initial pass: will collect input data, and do either Huffman in prepare_for_pass()
460 if (!cinfo->raw_data_in) { in prepare_for_pass()
461 (*cinfo->cconvert->start_pass) (cinfo); in prepare_for_pass()
462 (*cinfo->downsample->start_pass) (cinfo); in prepare_for_pass()
463 (*cinfo->prep->start_pass) (cinfo, JBUF_PASS_THRU); in prepare_for_pass()
465 (*cinfo->fdct->start_pass) (cinfo); in prepare_for_pass()
466 (*cinfo->entropy->start_pass) (cinfo, cinfo->optimize_coding); in prepare_for_pass()
467 (*cinfo->coef->start_pass) (cinfo, in prepare_for_pass()
468 (master->total_passes > 1 ? in prepare_for_pass()
470 (*cinfo->main->start_pass) (cinfo, JBUF_PASS_THRU); in prepare_for_pass()
471 if (cinfo->optimize_coding) { in prepare_for_pass()
473 master->pub.call_pass_startup = FALSE; in prepare_for_pass()
476 master->pub.call_pass_startup = TRUE; in prepare_for_pass()
484 if (cinfo->Ss != 0 || cinfo->Ah == 0 || cinfo->arith_code) { in prepare_for_pass()
485 (*cinfo->entropy->start_pass) (cinfo, TRUE); in prepare_for_pass()
486 (*cinfo->coef->start_pass) (cinfo, JBUF_CRANK_DEST); in prepare_for_pass()
487 master->pub.call_pass_startup = FALSE; in prepare_for_pass()
491 * and therefore we can skip the optimization pass for them. in prepare_for_pass()
493 master->pass_type = output_pass; in prepare_for_pass()
494 master->pass_number++; in prepare_for_pass()
498 /* Do a data-output pass. */ in prepare_for_pass()
499 /* We need not repeat per-scan setup if prior optimization pass did it. */ in prepare_for_pass()
500 if (!cinfo->optimize_coding) { in prepare_for_pass()
504 (*cinfo->entropy->start_pass) (cinfo, FALSE); in prepare_for_pass()
505 (*cinfo->coef->start_pass) (cinfo, JBUF_CRANK_DEST); in prepare_for_pass()
507 if (master->scan_number == 0) in prepare_for_pass()
508 (*cinfo->marker->write_frame_header) (cinfo); in prepare_for_pass()
509 (*cinfo->marker->write_scan_header) (cinfo); in prepare_for_pass()
510 master->pub.call_pass_startup = FALSE; in prepare_for_pass()
516 master->pub.is_last_pass = (master->pass_number == master->total_passes - 1); in prepare_for_pass()
518 /* Set up progress monitor's pass info if present */ in prepare_for_pass()
519 if (cinfo->progress != NULL) { in prepare_for_pass()
520 cinfo->progress->completed_passes = master->pass_number; in prepare_for_pass()
521 cinfo->progress->total_passes = master->total_passes; in prepare_for_pass()
527 * Special start-of-pass hook.
529 * In single-pass processing, we need this hook because we don't want to
533 * In multi-pass processing, this routine is not used.
539 cinfo->master->call_pass_startup = FALSE; /* reset flag so call only once */ in pass_startup()
541 (*cinfo->marker->write_frame_header) (cinfo); in pass_startup()
542 (*cinfo->marker->write_scan_header) (cinfo); in pass_startup()
547 * Finish up at end of pass.
553 my_master_ptr master = (my_master_ptr)cinfo->master; in finish_pass_master()
555 /* The entropy coder always needs an end-of-pass call, in finish_pass_master()
558 (*cinfo->entropy->finish_pass) (cinfo); in finish_pass_master()
560 /* Update state for next pass */ in finish_pass_master()
561 switch (master->pass_type) { in finish_pass_master()
563 /* next pass is either output of scan 0 (after optimization) in finish_pass_master()
566 master->pass_type = output_pass; in finish_pass_master()
567 if (!cinfo->optimize_coding) in finish_pass_master()
568 master->scan_number++; in finish_pass_master()
571 /* next pass is always output of current scan */ in finish_pass_master()
572 master->pass_type = output_pass; in finish_pass_master()
575 /* next pass is either optimization or output of next scan */ in finish_pass_master()
576 if (cinfo->optimize_coding) in finish_pass_master()
577 master->pass_type = huff_opt_pass; in finish_pass_master()
578 master->scan_number++; in finish_pass_master()
582 master->pass_number++; in finish_pass_master()
596 (*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE, in jinit_c_master_control()
598 cinfo->master = (struct jpeg_comp_master *)master; in jinit_c_master_control()
599 master->pub.prepare_for_pass = prepare_for_pass; in jinit_c_master_control()
600 master->pub.pass_startup = pass_startup; in jinit_c_master_control()
601 master->pub.finish_pass = finish_pass_master; in jinit_c_master_control()
602 master->pub.is_last_pass = FALSE; in jinit_c_master_control()
607 if (cinfo->scan_info != NULL) { in jinit_c_master_control()
614 cinfo->progressive_mode = FALSE; in jinit_c_master_control()
615 cinfo->num_scans = 1; in jinit_c_master_control()
618 if (cinfo->progressive_mode && !cinfo->arith_code) /* TEMPORARY HACK ??? */ in jinit_c_master_control()
619 cinfo->optimize_coding = TRUE; /* assume default tables no good for progressive mode */ in jinit_c_master_control()
623 /* no main pass in transcoding */ in jinit_c_master_control()
624 if (cinfo->optimize_coding) in jinit_c_master_control()
625 master->pass_type = huff_opt_pass; in jinit_c_master_control()
627 master->pass_type = output_pass; in jinit_c_master_control()
629 /* for normal compression, first pass is always this type: */ in jinit_c_master_control()
630 master->pass_type = main_pass; in jinit_c_master_control()
632 master->scan_number = 0; in jinit_c_master_control()
633 master->pass_number = 0; in jinit_c_master_control()
634 if (cinfo->optimize_coding) in jinit_c_master_control()
635 master->total_passes = cinfo->num_scans * 2; in jinit_c_master_control()
637 master->total_passes = cinfo->num_scans; in jinit_c_master_control()
639 master->jpeg_version = PACKAGE_NAME " version " VERSION " (build " BUILD ")"; in jinit_c_master_control()