34 jpeg_CreateDecompress(j_decompress_ptr cinfo, int version, size_t structsize)  in jpeg_CreateDecompress()  argument
39   cinfo->mem = NULL;            /* so jpeg_destroy knows mem mgr not called */  in jpeg_CreateDecompress()
41     ERREXIT2(cinfo, JERR_BAD_LIB_VERSION, JPEG_LIB_VERSION, version);  in jpeg_CreateDecompress()
43     ERREXIT2(cinfo, JERR_BAD_STRUCT_SIZE,  in jpeg_CreateDecompress()
53     struct jpeg_error_mgr *err = cinfo->err;  in jpeg_CreateDecompress()
54     void *client_data = cinfo->client_data; /* ignore Purify complaint here */  in jpeg_CreateDecompress()
55     MEMZERO(cinfo, sizeof(struct jpeg_decompress_struct));  in jpeg_CreateDecompress()
56     cinfo->err = err;  in jpeg_CreateDecompress()
57     cinfo->client_data = client_data;  in jpeg_CreateDecompress()
59   cinfo->is_decompressor = TRUE;  in jpeg_CreateDecompress()
62   jinit_memory_mgr((j_common_ptr)cinfo);  in jpeg_CreateDecompress()
65   cinfo->progress = NULL;  in jpeg_CreateDecompress()
66   cinfo->src = NULL;  in jpeg_CreateDecompress()
69     cinfo->quant_tbl_ptrs[i] = NULL;  in jpeg_CreateDecompress()
72     cinfo->dc_huff_tbl_ptrs[i] = NULL;  in jpeg_CreateDecompress()
73     cinfo->ac_huff_tbl_ptrs[i] = NULL;  in jpeg_CreateDecompress()
79   cinfo->marker_list = NULL;  in jpeg_CreateDecompress()
80   jinit_marker_reader(cinfo);  in jpeg_CreateDecompress()
83   jinit_input_controller(cinfo);  in jpeg_CreateDecompress()
86   cinfo->global_state = DSTATE_START;  in jpeg_CreateDecompress()
91   cinfo->master = (struct jpeg_decomp_master *)  in jpeg_CreateDecompress()
92     (*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_PERMANENT,  in jpeg_CreateDecompress()
94   MEMZERO(cinfo->master, sizeof(my_decomp_master));  in jpeg_CreateDecompress()
103 jpeg_destroy_decompress(j_decompress_ptr cinfo)  in jpeg_destroy_decompress()  argument
105   jpeg_destroy((j_common_ptr)cinfo); /* use common routine */  in jpeg_destroy_decompress()
115 jpeg_abort_decompress(j_decompress_ptr cinfo)  in jpeg_abort_decompress()  argument
117   jpeg_abort((j_common_ptr)cinfo); /* use common routine */  in jpeg_abort_decompress()
126 default_decompress_parms(j_decompress_ptr cinfo)  in default_decompress_parms()  argument
131   switch (cinfo->num_components) {  in default_decompress_parms()
133     cinfo->jpeg_color_space = JCS_GRAYSCALE;  in default_decompress_parms()
134     cinfo->out_color_space = JCS_GRAYSCALE;  in default_decompress_parms()
138     if (cinfo->saw_JFIF_marker) {  in default_decompress_parms()
139       cinfo->jpeg_color_space = JCS_YCbCr; /* JFIF implies YCbCr */  in default_decompress_parms()
140     } else if (cinfo->saw_Adobe_marker) {  in default_decompress_parms()
141       switch (cinfo->Adobe_transform) {  in default_decompress_parms()
143         cinfo->jpeg_color_space = JCS_RGB;  in default_decompress_parms()
146         cinfo->jpeg_color_space = JCS_YCbCr;  in default_decompress_parms()
149         WARNMS1(cinfo, JWRN_ADOBE_XFORM, cinfo->Adobe_transform);  in default_decompress_parms()
150         cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */  in default_decompress_parms()
155       int cid0 = cinfo->comp_info[0].component_id;  in default_decompress_parms()
156       int cid1 = cinfo->comp_info[1].component_id;  in default_decompress_parms()
157       int cid2 = cinfo->comp_info[2].component_id;  in default_decompress_parms()
160         cinfo->jpeg_color_space = JCS_YCbCr; /* assume JFIF w/out marker */  in default_decompress_parms()
162         cinfo->jpeg_color_space = JCS_RGB; /* ASCII 'R', 'G', 'B' */  in default_decompress_parms()
164         TRACEMS3(cinfo, 1, JTRC_UNKNOWN_IDS, cid0, cid1, cid2);  in default_decompress_parms()
165         cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */  in default_decompress_parms()
169     cinfo->out_color_space = JCS_RGB;  in default_decompress_parms()
173     if (cinfo->saw_Adobe_marker) {  in default_decompress_parms()
174       switch (cinfo->Adobe_transform) {  in default_decompress_parms()
176         cinfo->jpeg_color_space = JCS_CMYK;  in default_decompress_parms()
179         cinfo->jpeg_color_space = JCS_YCCK;  in default_decompress_parms()
182         WARNMS1(cinfo, JWRN_ADOBE_XFORM, cinfo->Adobe_transform);  in default_decompress_parms()
183         cinfo->jpeg_color_space = JCS_YCCK; /* assume it's YCCK */  in default_decompress_parms()
188       cinfo->jpeg_color_space = JCS_CMYK;  in default_decompress_parms()
190     cinfo->out_color_space = JCS_CMYK;  in default_decompress_parms()
194     cinfo->jpeg_color_space = JCS_UNKNOWN;  in default_decompress_parms()
195     cinfo->out_color_space = JCS_UNKNOWN;  in default_decompress_parms()
200   cinfo->scale_num = 1;         /* 1:1 scaling */  in default_decompress_parms()
201   cinfo->scale_denom = 1;  in default_decompress_parms()
202   cinfo->output_gamma = 1.0;  in default_decompress_parms()
203   cinfo->buffered_image = FALSE;  in default_decompress_parms()
204   cinfo->raw_data_out = FALSE;  in default_decompress_parms()
205   cinfo->dct_method = JDCT_DEFAULT;  in default_decompress_parms()
206   cinfo->do_fancy_upsampling = TRUE;  in default_decompress_parms()
207   cinfo->do_block_smoothing = TRUE;  in default_decompress_parms()
208   cinfo->quantize_colors = FALSE;  in default_decompress_parms()
210   cinfo->dither_mode = JDITHER_FS;  in default_decompress_parms()
212   cinfo->two_pass_quantize = TRUE;  in default_decompress_parms()
214   cinfo->two_pass_quantize = FALSE;  in default_decompress_parms()
216   cinfo->desired_number_of_colors = 256;  in default_decompress_parms()
217   cinfo->colormap = NULL;  in default_decompress_parms()
219   cinfo->enable_1pass_quant = FALSE;  in default_decompress_parms()
220   cinfo->enable_external_quant = FALSE;  in default_decompress_parms()
221   cinfo->enable_2pass_quant = FALSE;  in default_decompress_parms()
253 jpeg_read_header(j_decompress_ptr cinfo, boolean require_image)  in jpeg_read_header()  argument
257   if (cinfo->global_state != DSTATE_START &&  in jpeg_read_header()
258       cinfo->global_state != DSTATE_INHEADER)  in jpeg_read_header()
259     ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);  in jpeg_read_header()
261   retcode = jpeg_consume_input(cinfo);  in jpeg_read_header()
269       ERREXIT(cinfo, JERR_NO_IMAGE);  in jpeg_read_header()
274     jpeg_abort((j_common_ptr)cinfo); /* sets state = DSTATE_START */  in jpeg_read_header()
299 jpeg_consume_input(j_decompress_ptr cinfo)  in jpeg_consume_input()  argument
304   switch (cinfo->global_state) {  in jpeg_consume_input()
307     (*cinfo->inputctl->reset_input_controller) (cinfo);  in jpeg_consume_input()
309     (*cinfo->src->init_source) (cinfo);  in jpeg_consume_input()
310     cinfo->global_state = DSTATE_INHEADER;  in jpeg_consume_input()
313     retcode = (*cinfo->inputctl->consume_input) (cinfo);  in jpeg_consume_input()
316       default_decompress_parms(cinfo);  in jpeg_consume_input()
318       cinfo->global_state = DSTATE_READY;  in jpeg_consume_input()
332     retcode = (*cinfo->inputctl->consume_input) (cinfo);  in jpeg_consume_input()
335     ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);  in jpeg_consume_input()
346 jpeg_input_complete(j_decompress_ptr cinfo)  in jpeg_input_complete()  argument
349   if (cinfo->global_state < DSTATE_START ||  in jpeg_input_complete()
350       cinfo->global_state > DSTATE_STOPPING)  in jpeg_input_complete()
351     ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);  in jpeg_input_complete()
352   return cinfo->inputctl->eoi_reached;  in jpeg_input_complete()
361 jpeg_has_multiple_scans(j_decompress_ptr cinfo)  in jpeg_has_multiple_scans()  argument
364   if (cinfo->global_state < DSTATE_READY ||  in jpeg_has_multiple_scans()
365       cinfo->global_state > DSTATE_STOPPING)  in jpeg_has_multiple_scans()
366     ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);  in jpeg_has_multiple_scans()
367   return cinfo->inputctl->has_multiple_scans;  in jpeg_has_multiple_scans()
381 jpeg_finish_decompress(j_decompress_ptr cinfo)  in jpeg_finish_decompress()  argument
383   if ((cinfo->global_state == DSTATE_SCANNING ||  in jpeg_finish_decompress()
384        cinfo->global_state == DSTATE_RAW_OK) && !cinfo->buffered_image) {  in jpeg_finish_decompress()
386     if (cinfo->output_scanline < cinfo->output_height)  in jpeg_finish_decompress()
387       ERREXIT(cinfo, JERR_TOO_LITTLE_DATA);  in jpeg_finish_decompress()
388     (*cinfo->master->finish_output_pass) (cinfo);  in jpeg_finish_decompress()
389     cinfo->global_state = DSTATE_STOPPING;  in jpeg_finish_decompress()
390   } else if (cinfo->global_state == DSTATE_BUFIMAGE) {  in jpeg_finish_decompress()
392     cinfo->global_state = DSTATE_STOPPING;  in jpeg_finish_decompress()
393   } else if (cinfo->global_state != DSTATE_STOPPING) {  in jpeg_finish_decompress()
395     ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);  in jpeg_finish_decompress()
398   while (!cinfo->inputctl->eoi_reached) {  in jpeg_finish_decompress()
399     if ((*cinfo->inputctl->consume_input) (cinfo) == JPEG_SUSPENDED)  in jpeg_finish_decompress()
403   (*cinfo->src->term_source) (cinfo);  in jpeg_finish_decompress()
405   jpeg_abort((j_common_ptr)cinfo);  in jpeg_finish_decompress()