Lines Matching refs:cinfo
31 jpeg_CreateDecompress (j_decompress_ptr cinfo, int version, size_t structsize)
36 cinfo->mem = NULL; /* so jpeg_destroy knows mem mgr not called */
38 ERREXIT2(cinfo, JERR_BAD_LIB_VERSION, JPEG_LIB_VERSION, version);
40 ERREXIT2(cinfo, JERR_BAD_STRUCT_SIZE,
50 struct jpeg_error_mgr * err = cinfo->err;
51 void * client_data = cinfo->client_data; /* ignore Purify complaint here */
52 MEMZERO(cinfo, SIZEOF(struct jpeg_decompress_struct));
53 cinfo->err = err;
54 cinfo->client_data = client_data;
56 cinfo->is_decompressor = TRUE;
59 jinit_memory_mgr((j_common_ptr) cinfo);
62 cinfo->progress = NULL;
63 cinfo->src = NULL;
66 cinfo->quant_tbl_ptrs[i] = NULL;
69 cinfo->dc_huff_tbl_ptrs[i] = NULL;
70 cinfo->ac_huff_tbl_ptrs[i] = NULL;
76 cinfo->marker_list = NULL;
77 jinit_marker_reader(cinfo);
80 jinit_input_controller(cinfo);
83 cinfo->global_state = DSTATE_START;
92 jpeg_destroy_decompress (j_decompress_ptr cinfo)
94 jpeg_destroy((j_common_ptr) cinfo); /* use common routine */
104 jpeg_abort_decompress (j_decompress_ptr cinfo)
106 jpeg_abort((j_common_ptr) cinfo); /* use common routine */
115 default_decompress_parms (j_decompress_ptr cinfo)
120 switch (cinfo->num_components) {
122 cinfo->jpeg_color_space = JCS_GRAYSCALE;
123 cinfo->out_color_space = JCS_GRAYSCALE;
127 if (cinfo->saw_JFIF_marker) {
128 cinfo->jpeg_color_space = JCS_YCbCr; /* JFIF implies YCbCr */
129 } else if (cinfo->saw_Adobe_marker) {
130 switch (cinfo->Adobe_transform) {
132 cinfo->jpeg_color_space = JCS_RGB;
135 cinfo->jpeg_color_space = JCS_YCbCr;
138 WARNMS1(cinfo, JWRN_ADOBE_XFORM, cinfo->Adobe_transform);
139 cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */
144 int cid0 = cinfo->comp_info[0].component_id;
145 int cid1 = cinfo->comp_info[1].component_id;
146 int cid2 = cinfo->comp_info[2].component_id;
149 cinfo->jpeg_color_space = JCS_YCbCr; /* assume JFIF w/out marker */
151 cinfo->jpeg_color_space = JCS_RGB; /* ASCII 'R', 'G', 'B' */
153 TRACEMS3(cinfo, 1, JTRC_UNKNOWN_IDS, cid0, cid1, cid2);
154 cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */
158 cinfo->out_color_space = JCS_RGB;
162 if (cinfo->saw_Adobe_marker) {
163 switch (cinfo->Adobe_transform) {
165 cinfo->jpeg_color_space = JCS_CMYK;
168 cinfo->jpeg_color_space = JCS_YCCK;
171 WARNMS1(cinfo, JWRN_ADOBE_XFORM, cinfo->Adobe_transform);
172 cinfo->jpeg_color_space = JCS_YCCK; /* assume it's YCCK */
177 cinfo->jpeg_color_space = JCS_CMYK;
179 cinfo->out_color_space = JCS_CMYK;
183 cinfo->jpeg_color_space = JCS_UNKNOWN;
184 cinfo->out_color_space = JCS_UNKNOWN;
189 cinfo->scale_num = 1; /* 1:1 scaling */
190 cinfo->scale_denom = 1;
191 cinfo->output_gamma = 1.0;
192 cinfo->buffered_image = FALSE;
193 cinfo->raw_data_out = FALSE;
194 cinfo->dct_method = JDCT_DEFAULT;
195 cinfo->do_fancy_upsampling = TRUE;
196 cinfo->do_block_smoothing = TRUE;
197 cinfo->quantize_colors = FALSE;
199 cinfo->dither_mode = JDITHER_FS;
201 cinfo->two_pass_quantize = TRUE;
203 cinfo->two_pass_quantize = FALSE;
205 cinfo->desired_number_of_colors = 256;
206 cinfo->colormap = NULL;
208 cinfo->enable_1pass_quant = FALSE;
209 cinfo->enable_external_quant = FALSE;
210 cinfo->enable_2pass_quant = FALSE;
242 jpeg_read_header (j_decompress_ptr cinfo, boolean require_image)
246 if (cinfo->global_state != DSTATE_START &&
247 cinfo->global_state != DSTATE_INHEADER)
248 ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
250 retcode = jpeg_consume_input(cinfo);
258 ERREXIT(cinfo, JERR_NO_IMAGE);
263 jpeg_abort((j_common_ptr) cinfo); /* sets state = DSTATE_START */
288 jpeg_consume_input (j_decompress_ptr cinfo)
293 switch (cinfo->global_state) {
296 (*cinfo->inputctl->reset_input_controller) (cinfo);
298 (*cinfo->src->init_source) (cinfo);
299 cinfo->global_state = DSTATE_INHEADER;
302 retcode = (*cinfo->inputctl->consume_input) (cinfo);
305 default_decompress_parms(cinfo);
307 cinfo->global_state = DSTATE_READY;
321 retcode = (*cinfo->inputctl->consume_input) (cinfo);
324 ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
335 jpeg_input_complete (j_decompress_ptr cinfo)
338 if (cinfo->global_state < DSTATE_START ||
339 cinfo->global_state > DSTATE_STOPPING)
340 ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
341 return cinfo->inputctl->eoi_reached;
350 jpeg_has_multiple_scans (j_decompress_ptr cinfo)
353 if (cinfo->global_state < DSTATE_READY ||
354 cinfo->global_state > DSTATE_STOPPING)
355 ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
356 return cinfo->inputctl->has_multiple_scans;
370 jpeg_finish_decompress (j_decompress_ptr cinfo)
372 if ((cinfo->global_state == DSTATE_SCANNING ||
373 cinfo->global_state == DSTATE_RAW_OK) && ! cinfo->buffered_image) {
375 if (cinfo->output_scanline < cinfo->output_height)
376 ERREXIT(cinfo, JERR_TOO_LITTLE_DATA);
377 (*cinfo->master->finish_output_pass) (cinfo);
378 cinfo->global_state = DSTATE_STOPPING;
379 } else if (cinfo->global_state == DSTATE_BUFIMAGE) {
381 cinfo->global_state = DSTATE_STOPPING;
382 } else if (cinfo->global_state != DSTATE_STOPPING) {
384 ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
387 while (! cinfo->inputctl->eoi_reached) {
388 if ((*cinfo->inputctl->consume_input) (cinfo) == JPEG_SUSPENDED)
392 (*cinfo->src->term_source) (cinfo);
394 jpeg_abort((j_common_ptr) cinfo);