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