279 best_splittable_box (struct box *bv, unsigned int boxes, const double max_mse)  in best_splittable_box()  argument
286     if (bv[i].colors < 2) {  in best_splittable_box()
292           MAX (bv[i].variance.r, MAX (bv[i].variance.g, bv[i].variance.b));  in best_splittable_box()
293       double thissum = bv[i].sum * MAX (bv[i].variance.a, cv);  in best_splittable_box()
295       if (bv[i].max_error > max_mse) {  in best_splittable_box()
296         thissum = thissum * bv[i].max_error / max_mse;  in best_splittable_box()
318 static void set_colormap_from_boxes (colormap * map, struct box *bv,
321     const struct box *bv, unsigned int boxes);
341 total_box_error_below_target (double target_mse, struct box bv[],  in total_box_error_below_target()  argument
351     if (bv[i].total_error >= 0) {  in total_box_error_below_target()
352       total_error += bv[i].total_error;  in total_box_error_below_target()
359     if (bv[i].total_error < 0) {  in total_box_error_below_target()
360       bv[i].total_error = box_error (&bv[i], hist->achv);  in total_box_error_below_target()
361       total_error += bv[i].total_error;  in total_box_error_below_target()
381   struct box *bv = g_alloca (sizeof (struct box) * newcolors);  in mediancut()  local
389   bv[0].ind = 0;  in mediancut()
390   bv[0].colors = hist->size;  in mediancut()
391   bv[0].color =  in mediancut()
392       averagepixels (bv[0].colors, &achv[bv[0].ind], min_opaque_val, (f_pixel) {  in mediancut()
394   bv[0].variance = box_variance (achv, &bv[0]);  in mediancut()
395   bv[0].max_error = box_max_error (achv, &bv[0]);  in mediancut()
396   bv[0].sum = 0;  in mediancut()
397   bv[0].total_error = -1;  in mediancut()
398   for (i = 0; i < bv[0].colors; i++)  in mediancut()
399     bv[0].sum += achv[i].adjusted_weight;  in mediancut()
420       set_colormap_from_boxes (representative_subset, bv, boxes, achv);  in mediancut()
425     bi = best_splittable_box (bv, boxes, current_max_mse);  in mediancut()
429     indx = bv[bi].ind;  in mediancut()
430     clrs = bv[bi].colors;  in mediancut()
442     halfvar = prepare_sort (&bv[bi], achv);  in mediancut()
452     sm = bv[bi].sum;  in mediancut()
457     previous_center = bv[bi].color;  in mediancut()
458     bv[bi].colors = break_at;  in mediancut()
459     bv[bi].sum = lowersum;  in mediancut()
460     bv[bi].color =  in mediancut()
461         averagepixels (bv[bi].colors, &achv[bv[bi].ind], min_opaque_val,  in mediancut()
463     bv[bi].total_error = -1;  in mediancut()
464     bv[bi].variance = box_variance (achv, &bv[bi]);  in mediancut()
465     bv[bi].max_error = box_max_error (achv, &bv[bi]);  in mediancut()
466     bv[boxes].ind = indx + break_at;  in mediancut()
467     bv[boxes].colors = clrs - break_at;  in mediancut()
468     bv[boxes].sum = sm - lowersum;  in mediancut()
469     bv[boxes].color =  in mediancut()
470         averagepixels (bv[boxes].colors, &achv[bv[boxes].ind], min_opaque_val,  in mediancut()
472     bv[boxes].total_error = -1;  in mediancut()
473     bv[boxes].variance = box_variance (achv, &bv[boxes]);  in mediancut()
474     bv[boxes].max_error = box_max_error (achv, &bv[boxes]);  in mediancut()
478     if (total_box_error_below_target (target_mse, bv, boxes, hist)) {  in mediancut()
484   set_colormap_from_boxes (map, bv, boxes, achv);  in mediancut()
487   adjust_histogram (achv, map, bv, boxes);  in mediancut()
493 set_colormap_from_boxes (colormap * map, struct box *bv, unsigned int boxes,  in set_colormap_from_boxes()  argument
505     map->palette[bi].acolor = bv[bi].color;  in set_colormap_from_boxes()
509     for (unsigned int i = bv[bi].ind; i < bv[bi].ind + bv[bi].colors; i++) {  in set_colormap_from_boxes()
517 adjust_histogram (hist_item * achv, const colormap * map, const struct box *bv,  in adjust_histogram()  argument
521     for (unsigned int i = bv[bi].ind; i < bv[bi].ind + bv[bi].colors; i++) {  in adjust_histogram()