diff options
| author | dec05eba <dec05eba@protonmail.com> | 2021-11-19 03:43:27 +0100 |
|---|---|---|
| committer | dec05eba <dec05eba@protonmail.com> | 2021-11-19 03:43:27 +0100 |
| commit | 6da1df6204ae118ceada0eff08a0ac7d42b3548a (patch) | |
| tree | 527886112ec361058c63a43ee8f2286c9a60edb7 | |
| parent | f4833afa1afa56def5a6d54fa8ce22d3a9b4eb55 (diff) | |
Slightly improve font rendering quality
| -rw-r--r-- | src/graphics/font.c | 5 | ||||
| -rw-r--r-- | tests/main.c | 6 |
2 files changed, 6 insertions, 5 deletions
diff --git a/src/graphics/font.c b/src/graphics/font.c index aa349a6..b6ceaf5 100644 --- a/src/graphics/font.c +++ b/src/graphics/font.c @@ -7,6 +7,7 @@ /* Need padding so filtering doesn't touch pixels in another glyphs area */ #define GLYPH_PADDING 2 #define GLYPH_UPSAMPLE 1 +#define GLYPH_SHIFT 0.5f int mgl_font_load_from_file(mgl_font *self, const mgl_memory_mapped_file *mapped_file, unsigned int character_size) { self->texture.id = 0; @@ -167,7 +168,7 @@ int mgl_font_get_glyph(mgl_font *self, uint32_t codepoint, mgl_font_glyph *glyph const float glyph_advance = font_scale * advance; int x0, y0, x1, y1; - stbtt_GetGlyphBitmapBox(self->font_info, glyph_index, font_scale, font_scale, &x0, &y0, &x1, &y1); + stbtt_GetGlyphBitmapBoxSubpixel(self->font_info, glyph_index, font_scale, font_scale, GLYPH_SHIFT, GLYPH_SHIFT, &x0, &y0, &x1, &y1); int width = x1 - x0; int height = y1 - y0; @@ -181,7 +182,7 @@ int mgl_font_get_glyph(mgl_font *self, uint32_t codepoint, mgl_font_glyph *glyph unsigned char *pixels = calloc(pixels_size, 1); if(pixels) { const int top_padding = GLYPH_PADDING; - stbtt_MakeGlyphBitmap(self->font_info, pixels + pixels_width * top_padding + GLYPH_PADDING, width, height, pixels_width, font_scale, font_scale, glyph_index); + stbtt_MakeGlyphBitmapSubpixel(self->font_info, pixels + pixels_width * top_padding + GLYPH_PADDING, width, height, pixels_width, font_scale, font_scale, GLYPH_SHIFT, GLYPH_SHIFT, glyph_index); } mgl_vec2i render_offset; diff --git a/tests/main.c b/tests/main.c index b341bb3..a544761 100644 --- a/tests/main.c +++ b/tests/main.c @@ -57,7 +57,7 @@ static void draw(mgl_window *window, void *userdata) { fprintf(stderr, "fps: %d\n", u->fps); } char str[255]; - snprintf(str, sizeof(str), "hello|fps\nåäö: %d", u->fps); + snprintf(str, sizeof(str), "I finally did it!! Me and my sock puppets riled Connor and Punk"); mgl_text text; mgl_text_init(&text, u->font, str, strlen(str)); @@ -256,10 +256,10 @@ int main(int argc, char **argv) { if(mgl_mapped_file_load("/usr/share/fonts/noto-cjk/NotoSansCJK-Regular.ttc", &cjk_font_file, &(mgl_memory_mapped_file_load_options){ .readable = true, .writable = false }) != 0) return 1; - if(mgl_font_load_from_file(&font, &font_file, 26) != 0) + if(mgl_font_load_from_file(&font, &font_file, 22) != 0) return 1; - if(mgl_font_load_from_file(&cjk_font, &cjk_font_file, 26) != 0) + if(mgl_font_load_from_file(&cjk_font, &cjk_font_file, 22) != 0) return 1; if(mgl_shader_program_init(&shader_program) != 0) |