Revert "Delete CC."

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 "base/run_loop.h"
+#include "cc/output/compositor_frame_metadata.h"
+#include "cc/output/copy_output_request.h"
+#include "cc/output/copy_output_result.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/fake_output_surface_client.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 "cc/test/test_shared_bitmap_manager.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/skia/include/core/SkCanvas.h"
+
+namespace cc {
+namespace {
+
+class SoftwareRendererTest : public testing::Test, public RendererClient {
+ public:
+  void InitializeRenderer(
+      scoped_ptr<SoftwareOutputDevice> software_output_device) {
+    output_surface_ = FakeOutputSurface::CreateSoftware(
+        software_output_device.Pass());
+    CHECK(output_surface_->BindToClient(&output_surface_client_));
+
+    shared_bitmap_manager_.reset(new TestSharedBitmapManager());
+    resource_provider_ = ResourceProvider::Create(output_surface_.get(),
+                                                  shared_bitmap_manager_.get(),
+                                                  NULL,
+                                                  NULL,
+                                                  0,
+                                                  false,
+                                                  1);
+    renderer_ = SoftwareRenderer::Create(
+        this, &settings_, output_surface_.get(), resource_provider());
+  }
+
+  ResourceProvider* resource_provider() const {
+    return resource_provider_.get();
+  }
+
+  SoftwareRenderer* renderer() const { return renderer_.get(); }
+
+  // RendererClient implementation.
+  void SetFullRootLayerDamage() override {}
+
+  scoped_ptr<SkBitmap> DrawAndCopyOutput(RenderPassList* list,
+                                         float device_scale_factor,
+                                         gfx::Rect device_viewport_rect) {
+    scoped_ptr<SkBitmap> bitmap_result;
+    base::RunLoop loop;
+
+    list->back()->copy_requests.push_back(
+        CopyOutputRequest::CreateBitmapRequest(
+            base::Bind(&SoftwareRendererTest::SaveBitmapResult,
+                       base::Unretained(&bitmap_result),
+                       loop.QuitClosure())));
+
+    renderer()->DrawFrame(list,
+                          device_scale_factor,
+                          device_viewport_rect,
+                          device_viewport_rect,
+                          false);
+    loop.Run();
+    return bitmap_result.Pass();
+  }
+
+  static void SaveBitmapResult(scoped_ptr<SkBitmap>* bitmap_result,
+                               const base::Closure& quit_closure,
+                               scoped_ptr<CopyOutputResult> result) {
+    DCHECK(result->HasBitmap());
+    *bitmap_result = result->TakeBitmap();
+    quit_closure.Run();
+  }
+
+ protected:
+  RendererSettings settings_;
+  FakeOutputSurfaceClient output_surface_client_;
+  scoped_ptr<FakeOutputSurface> output_surface_;
+  scoped_ptr<SharedBitmapManager> shared_bitmap_manager_;
+  scoped_ptr<ResourceProvider> resource_provider_;
+  scoped_ptr<SoftwareRenderer> renderer_;
+};
+
+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);
+  gfx::Rect visible_rect(gfx::Point(1, 2), gfx::Size(98, 97));
+
+  InitializeRenderer(make_scoped_ptr(new SoftwareOutputDevice));
+
+  RenderPassId root_render_pass_id = RenderPassId(1, 1);
+  scoped_ptr<TestRenderPass> root_render_pass = TestRenderPass::Create();
+  root_render_pass->SetNew(
+      root_render_pass_id, outer_rect, outer_rect, gfx::Transform());
+  SharedQuadState* shared_quad_state =
+      root_render_pass->CreateAndAppendSharedQuadState();
+  shared_quad_state->SetAll(gfx::Transform(),
+                            outer_size,
+                            outer_rect,
+                            outer_rect,
+                            false,
+                            1.0,
+                            SkXfermode::kSrcOver_Mode,
+                            0);
+  SolidColorDrawQuad* inner_quad =
+      root_render_pass->CreateAndAppendDrawQuad<SolidColorDrawQuad>();
+  inner_quad->SetNew(
+      shared_quad_state, inner_rect, inner_rect, SK_ColorCYAN, false);
+  inner_quad->visible_rect = visible_rect;
+  SolidColorDrawQuad* outer_quad =
+      root_render_pass->CreateAndAppendDrawQuad<SolidColorDrawQuad>();
+  outer_quad->SetNew(
+      shared_quad_state, outer_rect, outer_rect, SK_ColorYELLOW, false);
+
+  RenderPassList list;
+  list.push_back(root_render_pass.Pass());
+
+  float device_scale_factor = 1.f;
+  gfx::Rect device_viewport_rect(outer_size);
+  scoped_ptr<SkBitmap> output =
+      DrawAndCopyOutput(&list, device_scale_factor, device_viewport_rect);
+  EXPECT_EQ(outer_rect.width(), output->info().fWidth);
+  EXPECT_EQ(outer_rect.height(), output->info().fHeight);
+
+  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_ColorYELLOW, output->getColor(1, 1));
+  EXPECT_EQ(SK_ColorCYAN, output->getColor(1, 2));
+  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);
+  InitializeRenderer(make_scoped_ptr(new SoftwareOutputDevice));
+
+  ResourceProvider::ResourceId resource_yellow =
+      resource_provider()->CreateResource(
+          outer_size, GL_CLAMP_TO_EDGE,
+          ResourceProvider::TEXTURE_HINT_IMMUTABLE, RGBA_8888);
+  ResourceProvider::ResourceId resource_cyan =
+      resource_provider()->CreateResource(
+          inner_size, GL_CLAMP_TO_EDGE,
+          ResourceProvider::TEXTURE_HINT_IMMUTABLE, RGBA_8888);
+
+  SkBitmap yellow_tile;
+  yellow_tile.allocN32Pixels(outer_size.width(), outer_size.height());
+  yellow_tile.eraseColor(SK_ColorYELLOW);
+
+  SkBitmap cyan_tile;
+  cyan_tile.allocN32Pixels(inner_size.width(), inner_size.height());
+  cyan_tile.eraseColor(SK_ColorCYAN);
+
+  resource_provider()->CopyToResource(
+      resource_yellow, static_cast<uint8_t*>(yellow_tile.getPixels()),
+      outer_size);
+  resource_provider()->CopyToResource(
+      resource_cyan, static_cast<uint8_t*>(cyan_tile.getPixels()), inner_size);
+
+  gfx::Rect root_rect = outer_rect;
+
+  RenderPassId root_render_pass_id = RenderPassId(1, 1);
+  scoped_ptr<TestRenderPass> root_render_pass = TestRenderPass::Create();
+  root_render_pass->SetNew(
+      root_render_pass_id, root_rect, root_rect, gfx::Transform());
+  SharedQuadState* shared_quad_state =
+      root_render_pass->CreateAndAppendSharedQuadState();
+  shared_quad_state->SetAll(gfx::Transform(),
+                            outer_size,
+                            outer_rect,
+                            outer_rect,
+                            false,
+                            1.0,
+                            SkXfermode::kSrcOver_Mode,
+                            0);
+  TileDrawQuad* inner_quad =
+      root_render_pass->CreateAndAppendDrawQuad<TileDrawQuad>();
+  inner_quad->SetNew(shared_quad_state,
+                     inner_rect,
+                     inner_rect,
+                     inner_rect,
+                     resource_cyan,
+                     gfx::RectF(inner_size),
+                     inner_size,
+                     false,
+                     false);
+  TileDrawQuad* outer_quad =
+      root_render_pass->CreateAndAppendDrawQuad<TileDrawQuad>();
+  outer_quad->SetNew(shared_quad_state,
+                     outer_rect,
+                     outer_rect,
+                     outer_rect,
+                     resource_yellow,
+                     gfx::RectF(outer_size),
+                     outer_size,
+                     false,
+                     false);
+
+  RenderPassList list;
+  list.push_back(root_render_pass.Pass());
+
+  float device_scale_factor = 1.f;
+  gfx::Rect device_viewport_rect(outer_size);
+  scoped_ptr<SkBitmap> output =
+      DrawAndCopyOutput(&list, device_scale_factor, device_viewport_rect);
+  EXPECT_EQ(outer_rect.width(), output->info().fWidth);
+  EXPECT_EQ(outer_rect.height(), output->info().fHeight);
+
+  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, TileQuadVisibleRect) {
+  gfx::Size tile_size(100, 100);
+  gfx::Rect tile_rect(tile_size);
+  gfx::Rect visible_rect = tile_rect;
+  visible_rect.Inset(1, 2, 3, 4);
+  InitializeRenderer(make_scoped_ptr(new SoftwareOutputDevice));
+
+  ResourceProvider::ResourceId resource_cyan =
+      resource_provider()->CreateResource(
+          tile_size, GL_CLAMP_TO_EDGE, ResourceProvider::TEXTURE_HINT_IMMUTABLE,
+          RGBA_8888);
+
+  SkBitmap cyan_tile;  // The lowest five rows are yellow.
+  cyan_tile.allocN32Pixels(tile_size.width(), tile_size.height());
+  cyan_tile.eraseColor(SK_ColorCYAN);
+  cyan_tile.eraseArea(
+      SkIRect::MakeLTRB(
+          0, visible_rect.bottom() - 1, tile_rect.width(), tile_rect.bottom()),
+      SK_ColorYELLOW);
+
+  resource_provider()->CopyToResource(
+      resource_cyan, static_cast<uint8_t*>(cyan_tile.getPixels()), tile_size);
+
+  gfx::Rect root_rect(tile_size);
+
+  RenderPassId root_render_pass_id = RenderPassId(1, 1);
+  scoped_ptr<TestRenderPass> root_render_pass = TestRenderPass::Create();
+  root_render_pass->SetNew(
+      root_render_pass_id, root_rect, root_rect, gfx::Transform());
+  SharedQuadState* shared_quad_state =
+      root_render_pass->CreateAndAppendSharedQuadState();
+  shared_quad_state->SetAll(gfx::Transform(),
+                            tile_size,
+                            tile_rect,
+                            tile_rect,
+                            false,
+                            1.0,
+                            SkXfermode::kSrcOver_Mode,
+                            0);
+  TileDrawQuad* quad =
+      root_render_pass->CreateAndAppendDrawQuad<TileDrawQuad>();
+  quad->SetNew(shared_quad_state,
+               tile_rect,
+               tile_rect,
+               tile_rect,
+               resource_cyan,
+               gfx::RectF(tile_size),
+               tile_size,
+               false,
+               false);
+  quad->visible_rect = visible_rect;
+
+  RenderPassList list;
+  list.push_back(root_render_pass.Pass());
+
+  float device_scale_factor = 1.f;
+  gfx::Rect device_viewport_rect(tile_size);
+  scoped_ptr<SkBitmap> output =
+      DrawAndCopyOutput(&list, device_scale_factor, device_viewport_rect);
+  EXPECT_EQ(tile_rect.width(), output->info().fWidth);
+  EXPECT_EQ(tile_rect.height(), output->info().fHeight);
+
+  // Check portion of tile not in visible rect isn't drawn.
+  const unsigned int kTransparent = SK_ColorTRANSPARENT;
+  EXPECT_EQ(kTransparent, output->getColor(0, 0));
+  EXPECT_EQ(kTransparent,
+            output->getColor(tile_rect.width() - 1, tile_rect.height() - 1));
+  EXPECT_EQ(kTransparent,
+            output->getColor(visible_rect.x() - 1, visible_rect.y() - 1));
+  EXPECT_EQ(kTransparent,
+            output->getColor(visible_rect.right(), visible_rect.bottom()));
+  // Ensure visible part is drawn correctly.
+  EXPECT_EQ(SK_ColorCYAN, output->getColor(visible_rect.x(), visible_rect.y()));
+  EXPECT_EQ(
+      SK_ColorCYAN,
+      output->getColor(visible_rect.right() - 2, visible_rect.bottom() - 2));
+  // Ensure last visible line is correct.
+  EXPECT_EQ(
+      SK_ColorYELLOW,
+      output->getColor(visible_rect.right() - 1, visible_rect.bottom() - 1));
+}
+
+TEST_F(SoftwareRendererTest, ShouldClearRootRenderPass) {
+  float device_scale_factor = 1.f;
+  gfx::Rect device_viewport_rect(0, 0, 100, 100);
+
+  settings_.should_clear_root_render_pass = false;
+  InitializeRenderer(make_scoped_ptr(new SoftwareOutputDevice));
+
+  RenderPassList list;
+
+  // Draw a fullscreen green quad in a first frame.
+  RenderPassId root_clear_pass_id(1, 0);
+  TestRenderPass* root_clear_pass = AddRenderPass(
+      &list, root_clear_pass_id, device_viewport_rect, gfx::Transform());
+  AddQuad(root_clear_pass, device_viewport_rect, SK_ColorGREEN);
+
+  renderer()->DecideRenderPassAllocationsForFrame(list);
+
+  scoped_ptr<SkBitmap> output =
+      DrawAndCopyOutput(&list, device_scale_factor, device_viewport_rect);
+  EXPECT_EQ(device_viewport_rect.width(), output->info().fWidth);
+  EXPECT_EQ(device_viewport_rect.height(), output->info().fHeight);
+
+  EXPECT_EQ(SK_ColorGREEN, output->getColor(0, 0));
+  EXPECT_EQ(SK_ColorGREEN,
+            output->getColor(device_viewport_rect.width() - 1,
+                             device_viewport_rect.height() - 1));
+
+  list.clear();
+
+  // Draw a smaller magenta rect without filling the viewport in a separate
+  // frame.
+  gfx::Rect smaller_rect(20, 20, 60, 60);
+
+  RenderPassId root_smaller_pass_id(2, 0);
+  TestRenderPass* root_smaller_pass = AddRenderPass(
+      &list, root_smaller_pass_id, device_viewport_rect, gfx::Transform());
+  AddQuad(root_smaller_pass, smaller_rect, SK_ColorMAGENTA);
+
+  renderer()->DecideRenderPassAllocationsForFrame(list);
+
+  output = DrawAndCopyOutput(&list, device_scale_factor, device_viewport_rect);
+  EXPECT_EQ(device_viewport_rect.width(), output->info().fWidth);
+  EXPECT_EQ(device_viewport_rect.height(), output->info().fHeight);
+
+  // If we didn't clear, the borders should still be green.
+  EXPECT_EQ(SK_ColorGREEN, output->getColor(0, 0));
+  EXPECT_EQ(SK_ColorGREEN,
+            output->getColor(device_viewport_rect.width() - 1,
+                             device_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));
+}
+
+TEST_F(SoftwareRendererTest, RenderPassVisibleRect) {
+  float device_scale_factor = 1.f;
+  gfx::Rect device_viewport_rect(0, 0, 100, 100);
+  InitializeRenderer(make_scoped_ptr(new SoftwareOutputDevice));
+
+  RenderPassList list;
+
+  // Pass drawn as inner quad is magenta.
+  gfx::Rect smaller_rect(20, 20, 60, 60);
+  RenderPassId smaller_pass_id(2, 1);
+  TestRenderPass* smaller_pass =
+      AddRenderPass(&list, smaller_pass_id, smaller_rect, gfx::Transform());
+  AddQuad(smaller_pass, smaller_rect, SK_ColorMAGENTA);
+
+  // Root pass is green.
+  RenderPassId root_clear_pass_id(1, 0);
+  TestRenderPass* root_clear_pass = AddRenderPass(
+      &list, root_clear_pass_id, device_viewport_rect, gfx::Transform());
+  AddRenderPassQuad(root_clear_pass, smaller_pass);
+  AddQuad(root_clear_pass, device_viewport_rect, SK_ColorGREEN);
+
+  // Interior pass quad has smaller visible rect.
+  gfx::Rect interior_visible_rect(30, 30, 40, 40);
+  root_clear_pass->quad_list.front()->visible_rect = interior_visible_rect;
+
+  renderer()->DecideRenderPassAllocationsForFrame(list);
+
+  scoped_ptr<SkBitmap> output =
+      DrawAndCopyOutput(&list, device_scale_factor, device_viewport_rect);
+  EXPECT_EQ(device_viewport_rect.width(), output->info().fWidth);
+  EXPECT_EQ(device_viewport_rect.height(), output->info().fHeight);
+
+  EXPECT_EQ(SK_ColorGREEN, output->getColor(0, 0));
+  EXPECT_EQ(SK_ColorGREEN,
+            output->getColor(device_viewport_rect.width() - 1,
+                             device_viewport_rect.height() - 1));
+
+  // Part outside visible rect should remain green.
+  EXPECT_EQ(SK_ColorGREEN,
+            output->getColor(smaller_rect.x(), smaller_rect.y()));
+  EXPECT_EQ(
+      SK_ColorGREEN,
+      output->getColor(smaller_rect.right() - 1, smaller_rect.bottom() - 1));
+
+  EXPECT_EQ(
+      SK_ColorMAGENTA,
+      output->getColor(interior_visible_rect.x(), interior_visible_rect.y()));
+  EXPECT_EQ(SK_ColorMAGENTA,
+            output->getColor(interior_visible_rect.right() - 1,
+                             interior_visible_rect.bottom() - 1));
+}
+
+}  // namespace
+}  // namespace cc