WIP: Surface Synchronization System

cc/ipc/quads.mojom

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 module cc.mojom;
 
 import "cc/ipc/filter_operations.mojom";
 import "cc/ipc/shared_quad_state.mojom";
 import "cc/ipc/surface_id.mojom";
 import "ui/gfx/geometry/mojo/geometry.mojom";
@@ skipping 31 matching lines @@
   uint32 color;
   bool force_anti_aliasing_off;
 };
 
 struct StreamVideoQuadState {
   uint32 resource_id;
   gfx.mojom.Size resource_size_in_pixels;
   gfx.mojom.Transform matrix;
 };
 
+enum SurfaceDrawQuadType {
+  PRIMARY,
+  FALLBACK,
+};
+
 struct SurfaceQuadState {
-  cc.mojom.SurfaceId surface;
+  SurfaceId surface;
+  SurfaceDrawQuadType surface_draw_quad_type;
 };
 
 struct TextureQuadState {
   uint32 resource_id;
   gfx.mojom.Size resource_size_in_pixels;
   bool premultiplied_alpha;
   gfx.mojom.PointF uv_top_left;
   gfx.mojom.PointF uv_bottom_right;
   uint32 background_color;
   array<float, 4> vertex_opacity;
@@ skipping 58 matching lines @@
   // Allows changing the rect that gets drawn to make it smaller. This value
   // should be clipped to |rect|. This rect lives in content space.
   bool needs_blending;
 
   // Optionally holds a SharedQuadState (transforms etc) shared by multiple
   // quads.
   SharedQuadState? sqs;
 
   DrawQuadState draw_quad_state;
 };