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Fixed writing before clip.

This commit is contained in:
Adam Harrison 2021-10-12 21:22:02 -04:00
parent d2e16ce0b5
commit 7c1ff0f3d8
1 changed files with 6 additions and 3 deletions
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9
src/renderer.c
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@ -251,13 +251,16 @@ float ren_draw_text(RenFont *font, const char *text, float x, int y, RenColor co
break; break;
if (start_x + (glyph_end - glyph_start) >= clip_end_x) if (start_x + (glyph_end - glyph_start) >= clip_end_x)
glyph_end = glyph_start + (clip_end_x - start_x); glyph_end = glyph_start + (clip_end_x - start_x);
else if (start_x < clip.x) {
int offset = clip.x - start_x;
start_x += offset;
glyph_start += offset;
}
unsigned int* destination_pixel = (unsigned int*)&destination_pixels[surface->pitch * target_y + start_x * bytes_per_pixel]; 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->pitch + metric->x0 * (font->subpixel ? 3 : 1)]; unsigned char* source_pixel = &source_pixels[line * set->surface->pitch + glyph_start * (font->subpixel ? 3 : 1)];
for (int x = glyph_start; x < glyph_end; ++x) { for (int x = glyph_start; x < glyph_end; ++x) {
unsigned int destination_color = *destination_pixel; unsigned int destination_color = *destination_pixel;
SDL_Color dst = { (destination_color >> 16) & 0xFF, (destination_color >> 8) & 0xFF, (destination_color >> 0) & 0xFF, (destination_color >> 24) & 0xFF }; SDL_Color dst = { (destination_color >> 16) & 0xFF, (destination_color >> 8) & 0xFF, (destination_color >> 0) & 0xFF, (destination_color >> 24) & 0xFF };
if (start_x + (x - glyph_start) < clip.x)
continue;
if (font->subpixel) { if (font->subpixel) {
SDL_Color src = { *source_pixel++, *source_pixel++, *source_pixel++ }; SDL_Color src = { *source_pixel++, *source_pixel++, *source_pixel++ };
r = color.r * src.r + dst.r * (255 - src.r) + 127; r = color.r * src.r + dst.r * (255 - src.r) + 127;