23 LOCAL(boolean) output_pass_setup JPP((j_decompress_ptr cinfo));
38 jpeg_start_decompress (j_decompress_ptr cinfo)  in jpeg_start_decompress()  argument
40   if (cinfo->global_state == DSTATE_READY) {  in jpeg_start_decompress()
42     jinit_master_decompress(cinfo);  in jpeg_start_decompress()
43     if (cinfo->buffered_image) {  in jpeg_start_decompress()
45       cinfo->global_state = DSTATE_BUFIMAGE;  in jpeg_start_decompress()
48     cinfo->global_state = DSTATE_PRELOAD;  in jpeg_start_decompress()
50   if (cinfo->global_state == DSTATE_PRELOAD) {  in jpeg_start_decompress()
52     if (cinfo->inputctl->has_multiple_scans) {  in jpeg_start_decompress()
57 	if (cinfo->progress != NULL)  in jpeg_start_decompress()
58 	  (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo);  in jpeg_start_decompress()
60 	retcode = (*cinfo->inputctl->consume_input) (cinfo);  in jpeg_start_decompress()
66 	if (cinfo->progress != NULL &&  in jpeg_start_decompress()
68 	  if (++cinfo->progress->pass_counter >= cinfo->progress->pass_limit) {  in jpeg_start_decompress()
70 	    cinfo->progress->pass_limit += (long) cinfo->total_iMCU_rows;  in jpeg_start_decompress()
75       ERREXIT(cinfo, JERR_NOT_COMPILED);  in jpeg_start_decompress()
78     cinfo->output_scan_number = cinfo->input_scan_number;  in jpeg_start_decompress()
79   } else if (cinfo->global_state != DSTATE_PRESCAN)  in jpeg_start_decompress()
80     ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);  in jpeg_start_decompress()
82   return output_pass_setup(cinfo);  in jpeg_start_decompress()
95 output_pass_setup (j_decompress_ptr cinfo)  in output_pass_setup()  argument
97   if (cinfo->global_state != DSTATE_PRESCAN) {  in output_pass_setup()
99     (*cinfo->master->prepare_for_output_pass) (cinfo);  in output_pass_setup()
100     cinfo->output_scanline = 0;  in output_pass_setup()
101     cinfo->global_state = DSTATE_PRESCAN;  in output_pass_setup()
104   while (cinfo->master->is_dummy_pass) {  in output_pass_setup()
107     while (cinfo->output_scanline < cinfo->output_height) {  in output_pass_setup()
110       if (cinfo->progress != NULL) {  in output_pass_setup()
111 	cinfo->progress->pass_counter = (long) cinfo->output_scanline;  in output_pass_setup()
112 	cinfo->progress->pass_limit = (long) cinfo->output_height;  in output_pass_setup()
113 	(*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo);  in output_pass_setup()
116       last_scanline = cinfo->output_scanline;  in output_pass_setup()
117       (*cinfo->main->process_data) (cinfo, (JSAMPARRAY) NULL,  in output_pass_setup()
118 				    &cinfo->output_scanline, (JDIMENSION) 0);  in output_pass_setup()
119       if (cinfo->output_scanline == last_scanline)  in output_pass_setup()
123     (*cinfo->master->finish_output_pass) (cinfo);  in output_pass_setup()
124     (*cinfo->master->prepare_for_output_pass) (cinfo);  in output_pass_setup()
125     cinfo->output_scanline = 0;  in output_pass_setup()
127     ERREXIT(cinfo, JERR_NOT_COMPILED);  in output_pass_setup()
133   cinfo->global_state = cinfo->raw_data_out ? DSTATE_RAW_OK : DSTATE_SCANNING;  in output_pass_setup()
152 jpeg_read_scanlines (j_decompress_ptr cinfo, JSAMPARRAY scanlines,  in jpeg_read_scanlines()  argument
157   if (cinfo->global_state != DSTATE_SCANNING)  in jpeg_read_scanlines()
160   if (cinfo->output_scanline >= cinfo->output_height) {  in jpeg_read_scanlines()
161     WARNMS(cinfo, JWRN_TOO_MUCH_DATA);  in jpeg_read_scanlines()
166   if (cinfo->progress != NULL) {  in jpeg_read_scanlines()
167     cinfo->progress->pass_counter = (long) cinfo->output_scanline;  in jpeg_read_scanlines()
168     cinfo->progress->pass_limit = (long) cinfo->output_height;  in jpeg_read_scanlines()
169     (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo);  in jpeg_read_scanlines()
174   (*cinfo->main->process_data) (cinfo, scanlines, &row_ctr, max_lines);  in jpeg_read_scanlines()
175   cinfo->output_scanline += row_ctr;  in jpeg_read_scanlines()
186 jpeg_read_raw_data (j_decompress_ptr cinfo, JSAMPIMAGE data,  in jpeg_read_raw_data()  argument
191   if (cinfo->global_state != DSTATE_RAW_OK)  in jpeg_read_raw_data()
192     ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);  in jpeg_read_raw_data()
193   if (cinfo->output_scanline >= cinfo->output_height) {  in jpeg_read_raw_data()
194     WARNMS(cinfo, JWRN_TOO_MUCH_DATA);  in jpeg_read_raw_data()
199   if (cinfo->progress != NULL) {  in jpeg_read_raw_data()
200     cinfo->progress->pass_counter = (long) cinfo->output_scanline;  in jpeg_read_raw_data()
201     cinfo->progress->pass_limit = (long) cinfo->output_height;  in jpeg_read_raw_data()
202     (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo);  in jpeg_read_raw_data()
206   lines_per_iMCU_row = cinfo->max_v_samp_factor * cinfo->min_DCT_scaled_size;  in jpeg_read_raw_data()
208     ERREXIT(cinfo, JERR_BUFFER_SIZE);  in jpeg_read_raw_data()
211   if (! (*cinfo->coef->decompress_data) (cinfo, data))  in jpeg_read_raw_data()
215   cinfo->output_scanline += lines_per_iMCU_row;  in jpeg_read_raw_data()
229 jpeg_start_output (j_decompress_ptr cinfo, int scan_number)  in jpeg_start_output()  argument
231   if (cinfo->global_state != DSTATE_BUFIMAGE &&  in jpeg_start_output()
232       cinfo->global_state != DSTATE_PRESCAN)  in jpeg_start_output()
233     ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);  in jpeg_start_output()
237   if (cinfo->inputctl->eoi_reached &&  in jpeg_start_output()
238       scan_number > cinfo->input_scan_number)  in jpeg_start_output()
239     scan_number = cinfo->input_scan_number;  in jpeg_start_output()
240   cinfo->output_scan_number = scan_number;  in jpeg_start_output()
242   return output_pass_setup(cinfo);  in jpeg_start_output()
254 jpeg_finish_output (j_decompress_ptr cinfo)  in jpeg_finish_output()  argument
256   if ((cinfo->global_state == DSTATE_SCANNING ||  in jpeg_finish_output()
257        cinfo->global_state == DSTATE_RAW_OK) && cinfo->buffered_image) {  in jpeg_finish_output()
260     (*cinfo->master->finish_output_pass) (cinfo);  in jpeg_finish_output()
261     cinfo->global_state = DSTATE_BUFPOST;  in jpeg_finish_output()
262   } else if (cinfo->global_state != DSTATE_BUFPOST) {  in jpeg_finish_output()
264     ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);  in jpeg_finish_output()
267   while (cinfo->input_scan_number <= cinfo->output_scan_number &&  in jpeg_finish_output()
268 	 ! cinfo->inputctl->eoi_reached) {  in jpeg_finish_output()
269     if ((*cinfo->inputctl->consume_input) (cinfo) == JPEG_SUSPENDED)  in jpeg_finish_output()
272   cinfo->global_state = DSTATE_BUFIMAGE;  in jpeg_finish_output()