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Ember blender with gamma correction into FontRenderer

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This commit is contained in:
Francesco Abbate
2020-06-02 17:18:52 +02:00
parent bc74b2860d
commit ae032cd185
4 changed files with 54 additions and 35 deletions
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src/renderer.c
+5 -3
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@@ -177,7 +177,8 @@ RenFont* ren_load_font(const char *filename, float size) {
font = check_alloc(calloc(1, sizeof(RenFont)));
font->size = size;
font->renderer = FontRendererNew(FONT_RENDERER_HINTING);
const float gamma = 1.8;
font->renderer = FontRendererNew(FONT_RENDERER_HINTING, gamma);
if (FontRendererLoadFont(font->renderer, filename)) {
free(font);
return NULL;
@@ -319,7 +320,7 @@ void ren_draw_image(RenImage *image, RenRect *sub, int x, int y, RenColor color)
}
}
static void ren_draw_coverage_with_color(RenCoverageImage *image, RenRect *sub, int x, int y, RenColor color) {
static void ren_draw_coverage_with_color(FontRenderer *renderer, RenCoverageImage *image, RenRect *sub, int x, int y, RenColor color) {
if (color.a == 0) { return; }
clip_point_inside_rect(&x, &y, sub);
@@ -336,6 +337,7 @@ static void ren_draw_coverage_with_color(RenCoverageImage *image, RenRect *sub,
d += x + y * surf->w;
const int surf_pixel_size = 4;
FontRendererBlendGamma(
renderer,
(uint8_t *) d, surf->w * surf_pixel_size,
s, image->width,
sub->width, sub->height,
@@ -354,7 +356,7 @@ int ren_draw_text(RenFont *font, const char *text, int x, int y, RenColor color)
rect.y = g->y0;
rect.width = g->x1 - g->x0;
rect.height = g->y1 - g->y0;
ren_draw_coverage_with_color(set->coverage, &rect, x + g->xoff, y + g->yoff, color);
ren_draw_coverage_with_color(font->renderer, set->coverage, &rect, x + g->xoff, y + g->yoff, color);
x += g->xadvance;
}
return x;