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Addressed issue where glyphs would continue to draw past their clip.

This commit is contained in:
Adam Harrison 2021-09-25 00:45:19 -04:00
parent 42d72cc296
commit b17aa3b068
1 changed files with 3 additions and 1 deletions
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4
src/renderer.c
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@ -246,13 +246,15 @@ float ren_draw_text(RenFont *font, const char *text, float x, int y, RenColor co
unsigned char* source_pixels = set->surface[bitmap_index]->pixels;
int start_x = pen_x + metric->bitmap_left, end_x = metric->x1 - metric->x0 + pen_x;
int glyph_end = metric->x1, glyph_start = metric->x0;
if (color.a > 0 && end_x >= clip.x && start_x <= clip_end_x) {
if (color.a > 0 && end_x >= clip.x && start_x < clip_end_x) {
for (int line = metric->y0; line < metric->y1; ++line) {
int target_y = line + y - metric->y0 - metric->bitmap_top + font->size * surface_scale;
if (target_y < clip.y)
continue;
if (target_y >= clip_end_y)
break;
if (start_x + (glyph_end - glyph_start) >= clip_end_x)
glyph_end = glyph_start + (clip_end_x - start_x);
unsigned int* destination_pixel = (unsigned int*)&destination_pixels[surface->pitch * target_y + start_x * bytes_per_pixel];
unsigned char* source_pixel = &source_pixels[line * set->surface[bitmap_index]->pitch + metric->x0 * (font->subpixel ? 3 : 1)];
for (int x = glyph_start; x < glyph_end; ++x) {