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comparison nuklear_ui/nuklear.h @ 2011:579fe3f6fe76

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Improved texture atlas size estimation in Nuklear
author Mike Pavone <pavone@retrodev.com>
date Sun, 01 Nov 2020 12:35:08 -0800
parents 92532eb6986d
children 638eb2d25696 86dfcf3f418a
comparison
equal deleted inserted replaced
2010:19957e7353a4 2011:579fe3f6fe76
11366 NK_ASSERT(config_list); 11366 NK_ASSERT(config_list);
11367 NK_ASSERT(count); 11367 NK_ASSERT(count);
11368 NK_ASSERT(alloc); 11368 NK_ASSERT(alloc);
11369 11369
11370 if (!image_memory || !width || !height || !config_list || !count) return nk_false; 11370 if (!image_memory || !width || !height || !config_list || !count) return nk_false;
11371 int pixel_area_estimate = 0;
11371 for (config_iter = config_list; config_iter; config_iter = config_iter->next) { 11372 for (config_iter = config_list; config_iter; config_iter = config_iter->next) {
11372 range_count = nk_range_count(config_iter->range); 11373 range_count = nk_range_count(config_iter->range);
11373 total_range_count += range_count; 11374 total_range_count += range_count;
11374 total_glyph_count += nk_range_glyph_count(config_iter->range, range_count); 11375 int glyphs = nk_range_glyph_count(config_iter->range, range_count);
11376 total_glyph_count += glyphs;
11377 pixel_area_estimate += glyphs * config_iter->size * config_iter->size;
11375 } 11378 }
11376 11379
11377 /* setup font baker from temporary memory */ 11380 /* setup font baker from temporary memory */
11378 for (config_iter = config_list; config_iter; config_iter = config_iter->next) { 11381 for (config_iter = config_list; config_iter; config_iter = config_iter->next) {
11379 const struct nk_font_config *cfg = config_iter; 11382 const struct nk_font_config *cfg = config_iter;
11380 if (!nk_tt_InitFont(&baker->build[i++].info, (const unsigned char*)cfg->ttf_blob, 0)) 11383 if (!nk_tt_InitFont(&baker->build[i++].info, (const unsigned char*)cfg->ttf_blob, 0))
11381 return nk_false; 11384 return nk_false;
11382 } 11385 }
11383 11386
11384 *height = 0; 11387 *height = 0;
11385 *width = (total_glyph_count > 1000) ? 1024 : 512; 11388 int width_estimate = sqrt(pixel_area_estimate) + 0.5;
11389 *width = 128;
11390 while (*width < width_estimate)
11391 {
11392 *width *= 2;
11393 }
11394 //*width = (total_glyph_count > 1000) ? 1024 : 512;
11386 nk_tt_PackBegin(&baker->spc, 0, (int)*width, (int)max_height, 0, 1, alloc); 11395 nk_tt_PackBegin(&baker->spc, 0, (int)*width, (int)max_height, 0, 1, alloc);
11387 { 11396 {
11388 int input_i = 0; 11397 int input_i = 0;
11389 int range_n = 0; 11398 int range_n = 0;
11390 int rect_n = 0; 11399 int rect_n = 0;