Lines Matching refs:dinfo
112 flush_packet(gif_dest_ptr dinfo) in flush_packet() argument
115 if (dinfo->bytesinpkt > 0) { /* never write zero-length packet */ in flush_packet()
116 dinfo->packetbuf[0] = (char)dinfo->bytesinpkt++; in flush_packet()
117 if (JFWRITE(dinfo->pub.output_file, dinfo->packetbuf, dinfo->bytesinpkt) != in flush_packet()
118 (size_t)dinfo->bytesinpkt) in flush_packet()
119 ERREXIT(dinfo->cinfo, JERR_FILE_WRITE); in flush_packet()
120 dinfo->bytesinpkt = 0; in flush_packet()
126 #define CHAR_OUT(dinfo, c) { \ argument
127 (dinfo)->packetbuf[++(dinfo)->bytesinpkt] = (char)(c); \
128 if ((dinfo)->bytesinpkt >= 255) \
129 flush_packet(dinfo); \
136 output(gif_dest_ptr dinfo, code_int code) in output() argument
140 dinfo->cur_accum |= ((long)code) << dinfo->cur_bits; in output()
141 dinfo->cur_bits += dinfo->n_bits; in output()
143 while (dinfo->cur_bits >= 8) { in output()
144 CHAR_OUT(dinfo, dinfo->cur_accum & 0xFF); in output()
145 dinfo->cur_accum >>= 8; in output()
146 dinfo->cur_bits -= 8; in output()
154 if (dinfo->free_code > dinfo->maxcode) { in output()
155 dinfo->n_bits++; in output()
156 if (dinfo->n_bits == MAX_LZW_BITS) in output()
157 dinfo->maxcode = LZW_TABLE_SIZE; /* free_code will never exceed this */ in output()
159 dinfo->maxcode = MAXCODE(dinfo->n_bits); in output()
168 clear_hash(gif_dest_ptr dinfo) in clear_hash() argument
172 MEMZERO(dinfo->hash_code, HSIZE * sizeof(code_int)); in clear_hash()
177 clear_block(gif_dest_ptr dinfo) in clear_block() argument
180 clear_hash(dinfo); /* delete all the symbols */ in clear_block()
181 dinfo->free_code = dinfo->ClearCode + 2; in clear_block()
182 output(dinfo, dinfo->ClearCode); /* inform decoder */ in clear_block()
183 dinfo->n_bits = dinfo->init_bits; /* reset code size */ in clear_block()
184 dinfo->maxcode = MAXCODE(dinfo->n_bits); in clear_block()
189 compress_init(gif_dest_ptr dinfo, int i_bits) in compress_init() argument
193 dinfo->n_bits = dinfo->init_bits = i_bits; in compress_init()
194 dinfo->maxcode = MAXCODE(dinfo->n_bits); in compress_init()
195 dinfo->ClearCode = ((code_int) 1 << (i_bits - 1)); in compress_init()
196 dinfo->EOFCode = dinfo->ClearCode + 1; in compress_init()
197 dinfo->code_counter = dinfo->free_code = dinfo->ClearCode + 2; in compress_init()
198 dinfo->first_byte = TRUE; /* no waiting symbol yet */ in compress_init()
200 dinfo->bytesinpkt = 0; in compress_init()
201 dinfo->cur_accum = 0; in compress_init()
202 dinfo->cur_bits = 0; in compress_init()
204 if (dinfo->hash_code != NULL) in compress_init()
205 clear_hash(dinfo); in compress_init()
207 output(dinfo, dinfo->ClearCode); in compress_init()
212 compress_term(gif_dest_ptr dinfo) in compress_term() argument
216 if (!dinfo->first_byte) in compress_term()
217 output(dinfo, dinfo->waiting_code); in compress_term()
219 output(dinfo, dinfo->EOFCode); in compress_term()
221 if (dinfo->cur_bits > 0) { in compress_term()
222 CHAR_OUT(dinfo, dinfo->cur_accum & 0xFF); in compress_term()
225 flush_packet(dinfo); in compress_term()
233 put_word(gif_dest_ptr dinfo, unsigned int w) in put_word() argument
236 putc(w & 0xFF, dinfo->pub.output_file); in put_word()
237 putc((w >> 8) & 0xFF, dinfo->pub.output_file); in put_word()
242 put_3bytes(gif_dest_ptr dinfo, int val) in put_3bytes() argument
245 putc(val, dinfo->pub.output_file); in put_3bytes()
246 putc(val, dinfo->pub.output_file); in put_3bytes()
247 putc(val, dinfo->pub.output_file); in put_3bytes()
252 emit_header(gif_dest_ptr dinfo, int num_colors, JSAMPARRAY colormap) in emit_header() argument
257 int cshift = dinfo->cinfo->data_precision - 8; in emit_header()
261 ERREXIT1(dinfo->cinfo, JERR_TOO_MANY_COLORS, num_colors); in emit_header()
275 putc('G', dinfo->pub.output_file); in emit_header()
276 putc('I', dinfo->pub.output_file); in emit_header()
277 putc('F', dinfo->pub.output_file); in emit_header()
278 putc('8', dinfo->pub.output_file); in emit_header()
279 putc('7', dinfo->pub.output_file); in emit_header()
280 putc('a', dinfo->pub.output_file); in emit_header()
282 put_word(dinfo, (unsigned int)dinfo->cinfo->output_width); in emit_header()
283 put_word(dinfo, (unsigned int)dinfo->cinfo->output_height); in emit_header()
287 putc(FlagByte, dinfo->pub.output_file); in emit_header()
288 putc(0, dinfo->pub.output_file); /* Background color index */ in emit_header()
289 putc(0, dinfo->pub.output_file); /* Reserved (aspect ratio in GIF89) */ in emit_header()
296 if (dinfo->cinfo->out_color_space == JCS_RGB) { in emit_header()
298 putc(colormap[0][i] >> cshift, dinfo->pub.output_file); in emit_header()
299 putc(colormap[1][i] >> cshift, dinfo->pub.output_file); in emit_header()
300 putc(colormap[2][i] >> cshift, dinfo->pub.output_file); in emit_header()
303 put_3bytes(dinfo, colormap[0][i] >> cshift); in emit_header()
307 put_3bytes(dinfo, (i * 255 + (num_colors - 1) / 2) / (num_colors - 1)); in emit_header()
311 put_3bytes(dinfo, CENTERJSAMPLE >> cshift); in emit_header()
315 putc(',', dinfo->pub.output_file); /* separator */ in emit_header()
316 put_word(dinfo, 0); /* left/top offset */ in emit_header()
317 put_word(dinfo, 0); in emit_header()
318 put_word(dinfo, (unsigned int)dinfo->cinfo->output_width); /* image size */ in emit_header()
319 put_word(dinfo, (unsigned int)dinfo->cinfo->output_height); in emit_header()
321 putc(0x00, dinfo->pub.output_file); in emit_header()
323 putc(InitCodeSize, dinfo->pub.output_file); in emit_header()
326 compress_init(dinfo, InitCodeSize + 1); in emit_header()
335 start_output_gif(j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) in start_output_gif() argument
337 gif_dest_ptr dest = (gif_dest_ptr)dinfo; in start_output_gif()
357 put_LZW_pixel_rows(j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, in put_LZW_pixel_rows() argument
360 gif_dest_ptr dest = (gif_dest_ptr)dinfo; in put_LZW_pixel_rows()
458 put_raw_pixel_rows(j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, in put_raw_pixel_rows() argument
461 gif_dest_ptr dest = (gif_dest_ptr)dinfo; in put_raw_pixel_rows()
493 finish_output_gif(j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) in finish_output_gif() argument
495 gif_dest_ptr dest = (gif_dest_ptr)dinfo; in finish_output_gif()
515 calc_buffer_dimensions_gif(j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) in calc_buffer_dimensions_gif() argument