Implement cc::SharedQuadState StructTraits

cc/ipc/shared_quad_state_struct_traits.h

+// 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.
+
+#ifndef CC_IPC_SHARED_QUAD_STATE_STRUCT_TRAITS_H_
+#define CC_IPC_SHARED_QUAD_STATE_STRUCT_TRAITS_H_
+
+#include "cc/ipc/shared_quad_state.mojom.h"
+#include "cc/quads/shared_quad_state.h"
+
+namespace mojo {
+
+template <>
+struct StructTraits<cc::mojom::SharedQuadState,
+                    std::unique_ptr<cc::SharedQuadState>> {
+  static gfx::Transform quad_to_target_transform(
+      const std::unique_ptr<cc::SharedQuadState>& sqs) {
+    return sqs->quad_to_target_transform;
+  }
+
+  static gfx::Size quad_layer_bounds(
+      const std::unique_ptr<cc::SharedQuadState>& sqs) {
+    return sqs->quad_layer_bounds;
+  }
+
+  static gfx::Rect visible_quad_layer_rect(
+      const std::unique_ptr<cc::SharedQuadState>& sqs) {
+    return sqs->visible_quad_layer_rect;
+  }
+
+  static gfx::Rect clip_rect(const std::unique_ptr<cc::SharedQuadState>& sqs) {
+    return sqs->clip_rect;
+  }
+
+  static bool is_clipped(const std::unique_ptr<cc::SharedQuadState>& sqs) {
+    return sqs->is_clipped;
+  }
+
+  static float opacity(const std::unique_ptr<cc::SharedQuadState>& sqs) {
+    return sqs->opacity;
+  }
+
+  static cc::mojom::SkXfermode blend_mode(
+      const std::unique_ptr<cc::SharedQuadState>& sqs) {
+    return static_cast<cc::mojom::SkXfermode>(sqs->blend_mode);
+  }
+
+  static int32_t sorting_context_id(
+      const std::unique_ptr<cc::SharedQuadState>& sqs) {
+    return sqs->sorting_context_id;
+  }
+
+  static bool Read(cc::mojom::SharedQuadStateDataView data,
+                   std::unique_ptr<cc::SharedQuadState>* out) {
+    std::unique_ptr<cc::SharedQuadState> sqs(new cc::SharedQuadState());
+    if (!data.ReadQuadToTargetTransform(&sqs->quad_to_target_transform) ||
+        !data.ReadQuadLayerBounds(&sqs->quad_layer_bounds) ||
+        !data.ReadVisibleQuadLayerRect(&sqs->visible_quad_layer_rect) ||
+        !data.ReadClipRect(&sqs->clip_rect)) {
+      return false;
+    }
+
+    sqs->is_clipped = data.is_clipped();
+    sqs->opacity = data.opacity();
+    sqs->blend_mode = static_cast<SkXfermode::Mode>(data.blend_mode());
+    sqs->sorting_context_id = data.sorting_context_id();
+    *out = std::move(sqs);
+    return true;
+  }
+};
+
+}  // namespace mojo
+
+#endif  // CC_IPC_SHARED_QUAD_STATE_STRUCT_TRAITS_H_