Implement transform/clip support for Android WebView.

cc/output/software_renderer_unittest.cc

 // Copyright 2012 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/output/software_renderer.h"
 
 #include "cc/layers/quad_sink.h"
 #include "cc/output/compositor_frame_metadata.h"
 #include "cc/output/software_output_device.h"
 #include "cc/quads/render_pass.h"
 #include "cc/quads/render_pass_draw_quad.h"
 #include "cc/quads/solid_color_draw_quad.h"
 #include "cc/quads/tile_draw_quad.h"
 #include "cc/test/animation_test_common.h"
 #include "cc/test/fake_output_surface.h"
 #include "cc/test/geometry_test_utils.h"
 #include "cc/test/render_pass_test_common.h"
 #include "cc/test/render_pass_test_utils.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/skia/include/core/SkCanvas.h"
+#include "third_party/skia/include/core/SkDevice.h"
 
 namespace cc {
 namespace {
 
 class SoftwareRendererTest : public testing::Test, public RendererClient {
  public:
   SoftwareRendererTest() : should_clear_root_render_pass_(true) {}
 
-  void InitializeRenderer() {
+  void InitializeRenderer(
+      scoped_ptr<SoftwareOutputDevice> software_output_device) {
     output_surface_ = FakeOutputSurface::CreateSoftware(
-        make_scoped_ptr(new SoftwareOutputDevice));
+        software_output_device.Pass());
     resource_provider_ = ResourceProvider::Create(output_surface_.get(), 0);
     renderer_ = SoftwareRenderer::Create(
         this, output_surface_.get(), resource_provider());
   }
 
   ResourceProvider* resource_provider() const {
     return resource_provider_.get();
   }
 
   SoftwareRenderer* renderer() const { return renderer_.get(); }
 
-  void set_viewport_size(gfx::Size viewport_size) {
-    viewport_size_ = viewport_size;
+  void set_viewport(gfx::Rect viewport) {
+    viewport_ = viewport;
   }
 
   void set_should_clear_root_render_pass(bool clear_root_render_pass) {
     should_clear_root_render_pass_ = clear_root_render_pass;
   }
 
   // RendererClient implementation.
-  virtual gfx::Size DeviceViewportSize() const OVERRIDE {
-    return viewport_size_;
+  virtual gfx::Rect DeviceViewport() const OVERRIDE {
+    return viewport_;
   }
   virtual float DeviceScaleFactor() const OVERRIDE {
     return 1.f;
   }
   virtual const LayerTreeSettings& Settings() const OVERRIDE {
     return settings_;
   }
   virtual void SetFullRootLayerDamage() OVERRIDE {}
   virtual void SetManagedMemoryPolicy(const ManagedMemoryPolicy& policy)
       OVERRIDE {}
   virtual void EnforceManagedMemoryPolicy(const ManagedMemoryPolicy& policy)
       OVERRIDE {}
   virtual bool HasImplThread() const OVERRIDE { return false; }
   virtual bool ShouldClearRootRenderPass() const OVERRIDE {
     return should_clear_root_render_pass_;
   }
   virtual CompositorFrameMetadata MakeCompositorFrameMetadata() const OVERRIDE {
     return CompositorFrameMetadata();
   }
   virtual bool AllowPartialSwap() const OVERRIDE {
     return true;
   }
 
  protected:
   scoped_ptr<FakeOutputSurface> output_surface_;
   scoped_ptr<ResourceProvider> resource_provider_;
   scoped_ptr<SoftwareRenderer> renderer_;
-  gfx::Size viewport_size_;
+  gfx::Rect viewport_;
   LayerTreeSettings settings_;
   bool should_clear_root_render_pass_;
 };
 
 TEST_F(SoftwareRendererTest, SolidColorQuad) {
   gfx::Size outer_size(100, 100);
   gfx::Size inner_size(98, 98);
   gfx::Rect outer_rect(outer_size);
   gfx::Rect inner_rect(gfx::Point(1, 1), inner_size);
-  set_viewport_size(outer_size);
+  set_viewport(gfx::Rect(outer_size));
 
-  InitializeRenderer();
+  InitializeRenderer(make_scoped_ptr(new SoftwareOutputDevice));
 
   scoped_ptr<SharedQuadState> shared_quad_state = SharedQuadState::Create();
   shared_quad_state->SetAll(
       gfx::Transform(), outer_size, outer_rect, outer_rect, false, 1.0);
   RenderPass::Id root_render_pass_id = RenderPass::Id(1, 1);
   scoped_ptr<TestRenderPass> root_render_pass = TestRenderPass::Create();
   root_render_pass->SetNew(
       root_render_pass_id, outer_rect, outer_rect, gfx::Transform());
   scoped_ptr<SolidColorDrawQuad> outer_quad = SolidColorDrawQuad::Create();
   outer_quad->SetNew(
       shared_quad_state.get(), outer_rect, SK_ColorYELLOW, false);
   scoped_ptr<SolidColorDrawQuad> inner_quad = SolidColorDrawQuad::Create();
   inner_quad->SetNew(shared_quad_state.get(), inner_rect, SK_ColorCYAN, false);
   root_render_pass->AppendQuad(inner_quad.PassAs<DrawQuad>());
   root_render_pass->AppendQuad(outer_quad.PassAs<DrawQuad>());
 
   RenderPassList list;
   list.push_back(root_render_pass.PassAs<RenderPass>());
   renderer()->DrawFrame(&list);
 
   SkBitmap output;
   output.setConfig(SkBitmap::kARGB_8888_Config,
-                   DeviceViewportSize().width(),
-                   DeviceViewportSize().height());
+                   DeviceViewport().width(),
+                   DeviceViewport().height());
   output.allocPixels();
   renderer()->GetFramebufferPixels(output.getPixels(), outer_rect);
 
   EXPECT_EQ(SK_ColorYELLOW, output.getColor(0, 0));
   EXPECT_EQ(SK_ColorYELLOW,
             output.getColor(outer_size.width() - 1, outer_size.height() - 1));
   EXPECT_EQ(SK_ColorCYAN, output.getColor(1, 1));
   EXPECT_EQ(SK_ColorCYAN,
             output.getColor(inner_size.width() - 1, inner_size.height() - 1));
 }
 
 TEST_F(SoftwareRendererTest, TileQuad) {
   gfx::Size outer_size(100, 100);
   gfx::Size inner_size(98, 98);
   gfx::Rect outer_rect(outer_size);
   gfx::Rect inner_rect(gfx::Point(1, 1), inner_size);
-  set_viewport_size(outer_size);
-  InitializeRenderer();
+  set_viewport(gfx::Rect(outer_size));
+  InitializeRenderer(make_scoped_ptr(new SoftwareOutputDevice));
 
   ResourceProvider::ResourceId resource_yellow =
       resource_provider()->CreateResource(
           outer_size, GL_RGBA, ResourceProvider::TextureUsageAny);
   ResourceProvider::ResourceId resource_cyan =
       resource_provider()->CreateResource(
           inner_size, GL_RGBA, ResourceProvider::TextureUsageAny);
 
   SkBitmap yellow_tile;
   yellow_tile.setConfig(
@@ skipping 12 matching lines @@
       static_cast<uint8_t*>(yellow_tile.getPixels()),
       gfx::Rect(outer_size),
       gfx::Rect(outer_size),
       gfx::Vector2d());
   resource_provider()->SetPixels(resource_cyan,
                                  static_cast<uint8_t*>(cyan_tile.getPixels()),
                                  gfx::Rect(inner_size),
                                  gfx::Rect(inner_size),
                                  gfx::Vector2d());
 
-  gfx::Rect root_rect = gfx::Rect(DeviceViewportSize());
+  gfx::Rect root_rect = DeviceViewport();
 
   scoped_ptr<SharedQuadState> shared_quad_state = SharedQuadState::Create();
   shared_quad_state->SetAll(
       gfx::Transform(), outer_size, outer_rect, outer_rect, false, 1.0);
   RenderPass::Id root_render_pass_id = RenderPass::Id(1, 1);
   scoped_ptr<TestRenderPass> root_render_pass = TestRenderPass::Create();
   root_render_pass->SetNew(
       root_render_pass_id, root_rect, root_rect, gfx::Transform());
   scoped_ptr<TileDrawQuad> outer_quad = TileDrawQuad::Create();
   outer_quad->SetNew(shared_quad_state.get(),
@@ skipping 13 matching lines @@
                      false);
   root_render_pass->AppendQuad(inner_quad.PassAs<DrawQuad>());
   root_render_pass->AppendQuad(outer_quad.PassAs<DrawQuad>());
 
   RenderPassList list;
   list.push_back(root_render_pass.PassAs<RenderPass>());
   renderer()->DrawFrame(&list);
 
   SkBitmap output;
   output.setConfig(SkBitmap::kARGB_8888_Config,
-                   DeviceViewportSize().width(),
-                   DeviceViewportSize().height());
+                   DeviceViewport().width(),
+                   DeviceViewport().height());
   output.allocPixels();
   renderer()->GetFramebufferPixels(output.getPixels(), outer_rect);
 
   EXPECT_EQ(SK_ColorYELLOW, output.getColor(0, 0));
   EXPECT_EQ(SK_ColorYELLOW,
             output.getColor(outer_size.width() - 1, outer_size.height() - 1));
   EXPECT_EQ(SK_ColorCYAN, output.getColor(1, 1));
   EXPECT_EQ(SK_ColorCYAN,
             output.getColor(inner_size.width() - 1, inner_size.height() - 1));
 }
 
 TEST_F(SoftwareRendererTest, ShouldClearRootRenderPass) {
   gfx::Rect viewport_rect(0, 0, 100, 100);
-  set_viewport_size(viewport_rect.size());
+  set_viewport(viewport_rect);
   set_should_clear_root_render_pass(false);
-  InitializeRenderer();
+  InitializeRenderer(make_scoped_ptr(new SoftwareOutputDevice));
 
   RenderPassList list;
 
   SkBitmap output;
   output.setConfig(SkBitmap::kARGB_8888_Config,
                    viewport_rect.width(),
                    viewport_rect.height());
   output.allocPixels();
 
   // Draw a fullscreen green quad in a first frame.
@@ skipping 31 matching lines @@
       output.getColor(viewport_rect.width() - 1, viewport_rect.height() - 1));
 
   EXPECT_EQ(SK_ColorMAGENTA,
             output.getColor(smaller_rect.x(), smaller_rect.y()));
   EXPECT_EQ(SK_ColorMAGENTA,
       output.getColor(smaller_rect.right() - 1, smaller_rect.bottom() - 1));
 }
 
 }  // namespace
 }  // namespace cc