Lines Matching refs:img_comp
1975 } img_comp[4];
2221 if (!stbi__addints_valid(j->img_comp[b].dc_pred, diff)) return stbi__err("bad delta","Corrupt JPEG");
2222 dc = j->img_comp[b].dc_pred + diff;
2223 j->img_comp[b].dc_pred = dc;
2278 if (!stbi__addints_valid(j->img_comp[b].dc_pred, diff)) return stbi__err("bad delta", "Corrupt JPEG");
2279 dc = j->img_comp[b].dc_pred + diff;
2280 j->img_comp[b].dc_pred = dc;
2939 j->img_comp[0].dc_pred = j->img_comp[1].dc_pred = j->img_comp[2].dc_pred = j->img_comp[3].dc_pred = 0;
2959 int w = (z->img_comp[n].x+7) >> 3;
2960 int h = (z->img_comp[n].y+7) >> 3;
2963 int ha = z->img_comp[n].ha;
2964 if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0;
2965 z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data);
2987 for (y=0; y < z->img_comp[n].v; ++y) {
2988 for (x=0; x < z->img_comp[n].h; ++x) {
2989 int x2 = (i*z->img_comp[n].h + x)*8;
2990 int y2 = (j*z->img_comp[n].v + y)*8;
2991 int ha = z->img_comp[n].ha;
2992 if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0;
2993 z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*y2+x2, z->img_comp[n].w2, data);
3016 int w = (z->img_comp[n].x+7) >> 3;
3017 int h = (z->img_comp[n].y+7) >> 3;
3020 short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w);
3022 if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n))
3025 int ha = z->img_comp[n].ha;
3047 for (y=0; y < z->img_comp[n].v; ++y) {
3048 for (x=0; x < z->img_comp[n].h; ++x) {
3049 int x2 = (i*z->img_comp[n].h + x);
3050 int y2 = (j*z->img_comp[n].v + y);
3051 short *data = z->img_comp[n].coeff + 64 * (x2 + y2 * z->img_comp[n].coeff_w);
3052 if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n))
3084 int w = (z->img_comp[n].x+7) >> 3;
3085 int h = (z->img_comp[n].y+7) >> 3;
3088 short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w);
3089 stbi__jpeg_dequantize(data, z->dequant[z->img_comp[n].tq]);
3090 z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data);
3212 if (z->img_comp[which].id == id)
3215 z->img_comp[which].hd = q >> 4; if (z->img_comp[which].hd > 3) return stbi__err("bad DC huff","Corrupt JPEG");
3216 z->img_comp[which].ha = q & 15; if (z->img_comp[which].ha > 3) return stbi__err("bad AC huff","Corrupt JPEG");
3244 if (z->img_comp[i].raw_data) {
3245 STBI_FREE(z->img_comp[i].raw_data);
3246 z->img_comp[i].raw_data = NULL;
3247 z->img_comp[i].data = NULL;
3249 if (z->img_comp[i].raw_coeff) {
3250 STBI_FREE(z->img_comp[i].raw_coeff);
3251 z->img_comp[i].raw_coeff = 0;
3252 z->img_comp[i].coeff = 0;
3254 if (z->img_comp[i].linebuf) {
3255 STBI_FREE(z->img_comp[i].linebuf);
3256 z->img_comp[i].linebuf = NULL;
3276 z->img_comp[i].data = NULL;
3277 z->img_comp[i].linebuf = NULL;
3285 z->img_comp[i].id = stbi__get8(s);
3286 if (s->img_n == 3 && z->img_comp[i].id == rgb[i])
3289 z->img_comp[i].h = (q >> 4); if (!z->img_comp[i].h || z->img_comp[i].h > 4) return stbi__err("bad H","Corrupt JPEG");
3290 z->img_comp[i].v = q & 15; if (!z->img_comp[i].v || z->img_comp[i].v > 4) return stbi__err("bad V","Corrupt JPEG");
3291 z->img_comp[i].tq = stbi__get8(s); if (z->img_comp[i].tq > 3) return stbi__err("bad TQ","Corrupt JPEG");
3299 if (z->img_comp[i].h > h_max) h_max = z->img_comp[i].h;
3300 if (z->img_comp[i].v > v_max) v_max = z->img_comp[i].v;
3306 if (h_max % z->img_comp[i].h != 0) return stbi__err("bad H","Corrupt JPEG");
3307 if (v_max % z->img_comp[i].v != 0) return stbi__err("bad V","Corrupt JPEG");
3321 z->img_comp[i].x = (s->img_x * z->img_comp[i].h + h_max-1) / h_max;
3322 z->img_comp[i].y = (s->img_y * z->img_comp[i].v + v_max-1) / v_max;
3330 z->img_comp[i].w2 = z->img_mcu_x * z->img_comp[i].h * 8;
3331 z->img_comp[i].h2 = z->img_mcu_y * z->img_comp[i].v * 8;
3332 z->img_comp[i].coeff = 0;
3333 z->img_comp[i].raw_coeff = 0;
3334 z->img_comp[i].linebuf = NULL;
3335 z->img_comp[i].raw_data = stbi__malloc_mad2(z->img_comp[i].w2, z->img_comp[i].h2, 15);
3336 if (z->img_comp[i].raw_data == NULL)
3339 z->img_comp[i].data = (stbi_uc*) (((size_t) z->img_comp[i].raw_data + 15) & ~15);
3342 z->img_comp[i].coeff_w = z->img_comp[i].w2 / 8;
3343 z->img_comp[i].coeff_h = z->img_comp[i].h2 / 8;
3344 z->img_comp[i].raw_coeff = stbi__malloc_mad3(z->img_comp[i].w2, z->img_comp[i].h2, sizeof(short), 15);
3345 if (z->img_comp[i].raw_coeff == NULL)
3347 z->img_comp[i].coeff = (short*) (((size_t) z->img_comp[i].raw_coeff + 15) & ~15);
3414 j->img_comp[m].raw_data = NULL;
3415 j->img_comp[m].raw_coeff = NULL;
3902 z->img_comp[k].linebuf = (stbi_uc *) stbi__malloc(z->s->img_x + 3);
3903 if (!z->img_comp[k].linebuf) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); }
3905 r->hs = z->img_h_max / z->img_comp[k].h;
3906 r->vs = z->img_v_max / z->img_comp[k].v;
3910 r->line0 = r->line1 = z->img_comp[k].data;
3929 coutput[k] = r->resample(z->img_comp[k].linebuf,
3936 if (++r->ypos < z->img_comp[k].y)
3937 r->line1 += z->img_comp[k].w2;