Add font LCD sub-pixel anti-aliasing support.

1 files changed, 32 insertions, 0 deletions

diff --git a/servers/rendering/renderer_canvas_cull.cpp b/servers/rendering/renderer_canvas_cull.cpp
index 86e5e4802b..aa9772a483 100644
--- a/servers/rendering/renderer_canvas_cull.cpp
+++ b/servers/rendering/renderer_canvas_cull.cpp
@@ -1183,6 +1183,38 @@ void RendererCanvasCull::canvas_item_add_msdf_texture_rect_region(RID p_item, co
 	rect->px_range = p_px_range;
 }
 
+void RendererCanvasCull::canvas_item_add_lcd_texture_rect_region(RID p_item, const Rect2 &p_rect, RID p_texture, const Rect2 &p_src_rect, const Color &p_modulate) {
+	Item *canvas_item = canvas_item_owner.get_or_null(p_item);
+	ERR_FAIL_COND(!canvas_item);
+
+	Item::CommandRect *rect = canvas_item->alloc_command<Item::CommandRect>();
+	ERR_FAIL_COND(!rect);
+	rect->modulate = p_modulate;
+	rect->rect = p_rect;
+
+	rect->texture = p_texture;
+
+	rect->source = p_src_rect;
+	rect->flags = RendererCanvasRender::CANVAS_RECT_REGION | RendererCanvasRender::CANVAS_RECT_LCD;
+
+	if (p_rect.size.x < 0) {
+		rect->flags |= RendererCanvasRender::CANVAS_RECT_FLIP_H;
+		rect->rect.size.x = -rect->rect.size.x;
+	}
+	if (p_src_rect.size.x < 0) {
+		rect->flags ^= RendererCanvasRender::CANVAS_RECT_FLIP_H;
+		rect->source.size.x = -rect->source.size.x;
+	}
+	if (p_rect.size.y < 0) {
+		rect->flags |= RendererCanvasRender::CANVAS_RECT_FLIP_V;
+		rect->rect.size.y = -rect->rect.size.y;
+	}
+	if (p_src_rect.size.y < 0) {
+		rect->flags ^= RendererCanvasRender::CANVAS_RECT_FLIP_V;
+		rect->source.size.y = -rect->source.size.y;
+	}
+}
+
 void RendererCanvasCull::canvas_item_add_texture_rect_region(RID p_item, const Rect2 &p_rect, RID p_texture, const Rect2 &p_src_rect, const Color &p_modulate, bool p_transpose, bool p_clip_uv) {
 	Item *canvas_item = canvas_item_owner.get_or_null(p_item);
 	ERR_FAIL_COND(!canvas_item);