Revert "Delete CC."

cc/test/pixel_test.cc

+// Copyright 2013 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/test/pixel_test.h"
+
+#include "base/command_line.h"
+#include "base/message_loop/message_loop_proxy.h"
+#include "base/path_service.h"
+#include "base/run_loop.h"
+#include "cc/base/blocking_task_runner.h"
+#include "cc/base/switches.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/gl_renderer.h"
+#include "cc/output/output_surface_client.h"
+#include "cc/output/software_renderer.h"
+#include "cc/resources/resource_provider.h"
+#include "cc/resources/texture_mailbox_deleter.h"
+#include "cc/resources/tile_task_worker_pool.h"
+#include "cc/test/fake_output_surface_client.h"
+#include "cc/test/paths.h"
+#include "cc/test/pixel_test_output_surface.h"
+#include "cc/test/pixel_test_software_output_device.h"
+#include "cc/test/pixel_test_utils.h"
+#include "cc/test/test_gpu_memory_buffer_manager.h"
+#include "cc/test/test_in_process_context_provider.h"
+#include "cc/test/test_shared_bitmap_manager.h"
+#include "gpu/command_buffer/client/gles2_interface.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace cc {
+
+PixelTest::PixelTest()
+    : device_viewport_size_(gfx::Size(200, 200)),
+      disable_picture_quad_image_filtering_(false),
+      output_surface_client_(new FakeOutputSurfaceClient),
+      main_thread_task_runner_(
+          BlockingTaskRunner::Create(base::MessageLoopProxy::current())) {
+}
+PixelTest::~PixelTest() {}
+
+bool PixelTest::RunPixelTest(RenderPassList* pass_list,
+                             const base::FilePath& ref_file,
+                             const PixelComparator& comparator) {
+  return RunPixelTestWithReadbackTarget(pass_list,
+                                        pass_list->back(),
+                                        ref_file,
+                                        comparator);
+}
+
+bool PixelTest::RunPixelTestWithReadbackTarget(
+    RenderPassList* pass_list,
+    RenderPass* target,
+    const base::FilePath& ref_file,
+    const PixelComparator& comparator) {
+  return RunPixelTestWithReadbackTargetAndArea(
+      pass_list, target, ref_file, comparator, nullptr);
+}
+
+bool PixelTest::RunPixelTestWithReadbackTargetAndArea(
+    RenderPassList* pass_list,
+    RenderPass* target,
+    const base::FilePath& ref_file,
+    const PixelComparator& comparator,
+    const gfx::Rect* copy_rect) {
+  base::RunLoop run_loop;
+
+  scoped_ptr<CopyOutputRequest> request =
+      CopyOutputRequest::CreateBitmapRequest(
+          base::Bind(&PixelTest::ReadbackResult,
+                     base::Unretained(this),
+                     run_loop.QuitClosure()));
+  if (copy_rect)
+    request->set_area(*copy_rect);
+  target->copy_requests.push_back(request.Pass());
+
+  float device_scale_factor = 1.f;
+  gfx::Rect device_viewport_rect =
+      gfx::Rect(device_viewport_size_) + external_device_viewport_offset_;
+  gfx::Rect device_clip_rect = external_device_clip_rect_.IsEmpty()
+                                   ? device_viewport_rect
+                                   : external_device_clip_rect_;
+  renderer_->DecideRenderPassAllocationsForFrame(*pass_list);
+  renderer_->DrawFrame(pass_list,
+                       device_scale_factor,
+                       device_viewport_rect,
+                       device_clip_rect,
+                       disable_picture_quad_image_filtering_);
+
+  // Wait for the readback to complete.
+  if (output_surface_->context_provider())
+    output_surface_->context_provider()->ContextGL()->Finish();
+  run_loop.Run();
+
+  return PixelsMatchReference(ref_file, comparator);
+}
+
+void PixelTest::ReadbackResult(base::Closure quit_run_loop,
+                               scoped_ptr<CopyOutputResult> result) {
+  ASSERT_TRUE(result->HasBitmap());
+  result_bitmap_ = result->TakeBitmap().Pass();
+  quit_run_loop.Run();
+}
+
+bool PixelTest::PixelsMatchReference(const base::FilePath& ref_file,
+                                     const PixelComparator& comparator) {
+  base::FilePath test_data_dir;
+  if (!PathService::Get(CCPaths::DIR_TEST_DATA, &test_data_dir))
+    return false;
+
+  // If this is false, we didn't set up a readback on a render pass.
+  if (!result_bitmap_)
+    return false;
+
+  base::CommandLine* cmd = base::CommandLine::ForCurrentProcess();
+  if (cmd->HasSwitch(switches::kCCRebaselinePixeltests))
+    return WritePNGFile(*result_bitmap_, test_data_dir.Append(ref_file), true);
+
+  return MatchesPNGFile(
+      *result_bitmap_, test_data_dir.Append(ref_file), comparator);
+}
+
+void PixelTest::SetUpGLRenderer(bool use_skia_gpu_backend,
+                                bool flipped_output_surface) {
+  enable_pixel_output_.reset(new gfx::DisableNullDrawGLBindings);
+
+  output_surface_.reset(new PixelTestOutputSurface(
+      new TestInProcessContextProvider, new TestInProcessContextProvider,
+      flipped_output_surface));
+  output_surface_->BindToClient(output_surface_client_.get());
+
+  shared_bitmap_manager_.reset(new TestSharedBitmapManager);
+  gpu_memory_buffer_manager_.reset(new TestGpuMemoryBufferManager);
+  resource_provider_ =
+      ResourceProvider::Create(output_surface_.get(),
+                               shared_bitmap_manager_.get(),
+                               gpu_memory_buffer_manager_.get(),
+                               main_thread_task_runner_.get(),
+                               0,
+                               false,
+                               1);
+
+  texture_mailbox_deleter_ = make_scoped_ptr(
+      new TextureMailboxDeleter(base::MessageLoopProxy::current()));
+
+  renderer_ = GLRenderer::Create(
+      this, &settings_.renderer_settings, output_surface_.get(),
+      resource_provider_.get(), texture_mailbox_deleter_.get(), 0);
+}
+
+void PixelTest::ForceExpandedViewport(const gfx::Size& surface_expansion) {
+  static_cast<PixelTestOutputSurface*>(output_surface_.get())
+      ->set_surface_expansion_size(surface_expansion);
+  SoftwareOutputDevice* device = output_surface_->software_device();
+  if (device) {
+    static_cast<PixelTestSoftwareOutputDevice*>(device)
+        ->set_surface_expansion_size(surface_expansion);
+  }
+}
+
+void PixelTest::ForceViewportOffset(const gfx::Vector2d& viewport_offset) {
+  external_device_viewport_offset_ = viewport_offset;
+}
+
+void PixelTest::ForceDeviceClip(const gfx::Rect& clip) {
+  external_device_clip_rect_ = clip;
+}
+
+void PixelTest::EnableExternalStencilTest() {
+  static_cast<PixelTestOutputSurface*>(output_surface_.get())
+      ->set_has_external_stencil_test(true);
+}
+
+void PixelTest::SetUpSoftwareRenderer() {
+  scoped_ptr<SoftwareOutputDevice> device(new PixelTestSoftwareOutputDevice());
+  output_surface_.reset(new PixelTestOutputSurface(device.Pass()));
+  output_surface_->BindToClient(output_surface_client_.get());
+  shared_bitmap_manager_.reset(new TestSharedBitmapManager());
+  resource_provider_ =
+      ResourceProvider::Create(output_surface_.get(),
+                               shared_bitmap_manager_.get(),
+                               gpu_memory_buffer_manager_.get(),
+                               main_thread_task_runner_.get(),
+                               0,
+                               false,
+                               1);
+  renderer_ =
+      SoftwareRenderer::Create(this, &settings_.renderer_settings,
+                               output_surface_.get(), resource_provider_.get());
+}
+
+}  // namespace cc