Moving RenderSurface creation outside of CalcDrawProps

cc/layers/delegated_renderer_layer_unittest.cc

 // 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.
 
 #include "cc/layers/delegated_renderer_layer.h"
 
 #include "cc/layers/delegated_frame_provider.h"
 #include "cc/layers/delegated_frame_resource_collection.h"
 #include "cc/layers/solid_color_layer.h"
 #include "cc/output/delegated_frame_data.h"
+#include "cc/resources/resource_update_queue.h"
 #include "cc/test/fake_delegated_renderer_layer.h"
 #include "cc/test/fake_layer_tree_host.h"
 #include "cc/test/fake_proxy.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace cc {
 namespace {
 
 class DelegatedRendererLayerTest : public testing::Test {
  public:
   DelegatedRendererLayerTest() : proxy_() {
-    LayerTreeSettings settings;
-    settings.minimum_occlusion_tracking_size = gfx::Size();
-
-    host_impl_ = FakeLayerTreeHost::Create(settings);
-    host_impl_->SetViewportSize(gfx::Size(10, 10));
+    host_ = FakeLayerTreeHost::Create();
+    host_->SetViewportSize(gfx::Size(10, 10));
   }
 
  protected:
   FakeProxy proxy_;
   TestSharedBitmapManager shared_bitmap_manager_;
-  scoped_ptr<LayerTreeHost> host_impl_;
+  scoped_ptr<FakeLayerTreeHost> host_;
 };
 
 class DelegatedRendererLayerTestSimple : public DelegatedRendererLayerTest {
  public:
   DelegatedRendererLayerTestSimple() : DelegatedRendererLayerTest() {
     scoped_ptr<RenderPass> root_pass(RenderPass::Create());
     root_pass->SetNew(
         RenderPassId(1, 1), gfx::Rect(1, 1), gfx::Rect(1, 1), gfx::Transform());
     scoped_ptr<DelegatedFrameData> frame_data(new DelegatedFrameData);
     frame_data->render_pass_list.push_back(root_pass.Pass());
     resources_ = new DelegatedFrameResourceCollection;
     provider_ = new DelegatedFrameProvider(resources_, frame_data.Pass());
     root_layer_ = SolidColorLayer::Create();
     layer_before_ = SolidColorLayer::Create();
     delegated_renderer_layer_ =
         FakeDelegatedRendererLayer::Create(provider_.get());
+    queue_ = make_scoped_ptr(new ResourceUpdateQueue);
+    host_->SetRootLayer(root_layer_);
+    host_->InitializeForTesting(scoped_ptr<Proxy>(new FakeProxy));
   }
 
  protected:
   scoped_refptr<Layer> root_layer_;
   scoped_refptr<Layer> layer_before_;
   scoped_refptr<DelegatedRendererLayer> delegated_renderer_layer_;
   scoped_refptr<DelegatedFrameResourceCollection> resources_;
   scoped_refptr<DelegatedFrameProvider> provider_;
+  scoped_ptr<ResourceUpdateQueue> queue_;
 };
 
+static void CalcDrawProps(LayerTreeHost* host) {
+  RenderSurfaceLayerList render_surface_layer_list;
+  LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
+      host->root_layer(), gfx::Size(500, 500), &render_surface_layer_list);
+  LayerTreeHostCommon::CalculateDrawProperties(&inputs);
+}
+
 TEST_F(DelegatedRendererLayerTestSimple, DelegatedManyDescendants) {
   EXPECT_EQ(0, root_layer_->NumDescendantsThatDrawContent());
   root_layer_->AddChild(layer_before_);
   EXPECT_EQ(0, root_layer_->NumDescendantsThatDrawContent());
   layer_before_->SetIsDrawable(true);
   EXPECT_EQ(1, root_layer_->NumDescendantsThatDrawContent());
   EXPECT_EQ(0, layer_before_->NumDescendantsThatDrawContent());
   layer_before_->AddChild(delegated_renderer_layer_);
   EXPECT_EQ(0, layer_before_->NumDescendantsThatDrawContent());
   EXPECT_EQ(0, delegated_renderer_layer_->NumDescendantsThatDrawContent());
   EXPECT_EQ(1, root_layer_->NumDescendantsThatDrawContent());
   delegated_renderer_layer_->SetIsDrawable(true);
   EXPECT_EQ(1000, delegated_renderer_layer_->NumDescendantsThatDrawContent());
   EXPECT_EQ(1001, layer_before_->NumDescendantsThatDrawContent());
   EXPECT_EQ(1002, root_layer_->NumDescendantsThatDrawContent());
 }
 
+TEST_F(DelegatedRendererLayerTestSimple, DoesNotOwnARenderSurface) {
+  root_layer_->AddChild(delegated_renderer_layer_);
+  root_layer_->SetIsDrawable(true);
+  delegated_renderer_layer_->AddChild(layer_before_);
+  delegated_renderer_layer_->SetIsDrawable(true);
+  layer_before_->SetIsDrawable(true);
+  CalcDrawProps(host_.get());
+
+  // If the DelegatedRendererLayer is axis aligned and has opacity 1, then it
+  // has no need to be a RenderSurface for the quads it carries.
+  EXPECT_FALSE(delegated_renderer_layer_->render_surface());
+}
+
+TEST_F(DelegatedRendererLayerTestSimple, DoesOwnARenderSurfaceForOpacity) {
+  delegated_renderer_layer_->SetOpacity(0.5f);
+  root_layer_->AddChild(delegated_renderer_layer_);
+  root_layer_->SetIsDrawable(true);
+  delegated_renderer_layer_->AddChild(layer_before_);
+  delegated_renderer_layer_->SetIsDrawable(true);
+  layer_before_->SetIsDrawable(true);
+  CalcDrawProps(host_.get());
+
+  // This test case has quads from multiple layers in the delegated renderer, so
+  // if the DelegatedRendererLayer has opacity < 1, it should end up with a
+  // render surface.
+  EXPECT_TRUE(delegated_renderer_layer_->render_surface());
+}
+
+TEST_F(DelegatedRendererLayerTestSimple, DoesOwnARenderSurfaceForTransform) {
+  gfx::Transform rotation;
+  rotation.RotateAboutZAxis(30.0);
+  delegated_renderer_layer_->SetTransform(rotation);
+  root_layer_->AddChild(delegated_renderer_layer_);
+  root_layer_->SetIsDrawable(true);
+  delegated_renderer_layer_->AddChild(layer_before_);
+  delegated_renderer_layer_->SetIsDrawable(true);
+  layer_before_->SetIsDrawable(true);
+
+  CalcDrawProps(host_.get());
+
+  // This test case has quads from multiple layers in the delegated renderer, so
+  // if the DelegatedRendererLayer has opacity < 1, it should end up with a
+  // render surface.
+  EXPECT_TRUE(delegated_renderer_layer_->render_surface());
+}
+
 }  // namespace
 }  // namespace cc