WIP: Surface Synchronization System

cc/ipc/quads_struct_traits.cc

 // Copyright 2016 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.
 
 #include "cc/ipc/quads_struct_traits.h"
 #include "ui/gfx/mojo/transform_struct_traits.h"
 
 namespace mojo {
 
 cc::DrawQuad* AllocateAndConstruct(
@@ skipping 84 matching lines @@
   quad->resources.ids[cc::StreamVideoDrawQuad::kResourceIdIndex] =
       data.resource_id();
   quad->resources.count = 1;
   return data.ReadResourceSizeInPixels(
              &quad->overlay_resources
                   .size_in_pixels[cc::StreamVideoDrawQuad::kResourceIdIndex]) &&
          data.ReadMatrix(&quad->matrix);
 }
 
 // static
+cc::mojom::SurfaceDrawQuadType
+EnumTraits<cc::mojom::SurfaceDrawQuadType, cc::SurfaceDrawQuadType>::ToMojom(
+    cc::SurfaceDrawQuadType surface_draw_quad_type) {
+  switch (surface_draw_quad_type) {
+    case cc::SurfaceDrawQuadType::PRIMARY:
+      return cc::mojom::SurfaceDrawQuadType::PRIMARY;
+    case cc::SurfaceDrawQuadType::FALLBACK:
+      return cc::mojom::SurfaceDrawQuadType::FALLBACK;
+  }
+}
+
+// static
+bool EnumTraits<cc::mojom::SurfaceDrawQuadType, cc::SurfaceDrawQuadType>::
+    FromMojom(cc::mojom::SurfaceDrawQuadType input,
+              cc::SurfaceDrawQuadType* out) {
+  switch (input) {
+    case cc::mojom::SurfaceDrawQuadType::PRIMARY:
+      *out = cc::SurfaceDrawQuadType::PRIMARY;
+      return true;
+    case cc::mojom::SurfaceDrawQuadType::FALLBACK:
+      *out = cc::SurfaceDrawQuadType::FALLBACK;
+      return true;
+  }
+  return false;
+}
+
+// static
 bool StructTraits<cc::mojom::SurfaceQuadStateDataView, cc::DrawQuad>::Read(
     cc::mojom::SurfaceQuadStateDataView data,
     cc::DrawQuad* out) {
   cc::SurfaceDrawQuad* quad = static_cast<cc::SurfaceDrawQuad*>(out);
-  return data.ReadSurface(&quad->surface_id);
+  // This wil be populated in RenderPass deserialization.
+  quad->fallback_quad = nullptr;
+  return data.ReadSurfaceDrawQuadType(&quad->surface_draw_quad_type) &&
+         data.ReadSurface(&quad->surface_id);
 }
 
 // static
 bool StructTraits<cc::mojom::TextureQuadStateDataView, cc::DrawQuad>::Read(
     cc::mojom::TextureQuadStateDataView data,
     cc::DrawQuad* out) {
   cc::TextureDrawQuad* quad = static_cast<cc::TextureDrawQuad*>(out);
 
   quad->resources.ids[cc::TextureDrawQuad::kResourceIdIndex] =
       data.resource_id();
@@ skipping 112 matching lines @@
     cc::DrawQuad* out) {
   if (!data.ReadRect(&out->rect) || !data.ReadOpaqueRect(&out->opaque_rect) ||
       !data.ReadVisibleRect(&out->visible_rect)) {
     return false;
   }
   out->needs_blending = data.needs_blending();
   return data.ReadDrawQuadState(out);
 }
 
 }  // namespace mojo