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// 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/path_service.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/gl_renderer.h"
#include "cc/output/output_surface_client.h"
#include "cc/output/software_renderer.h"
#include "cc/resources/resource_provider.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 "testing/gtest/include/gtest/gtest.h"
#include "ui/gl/gl_implementation.h"
#include "webkit/common/gpu/context_provider_in_process.h"
#include "webkit/common/gpu/webgraphicscontext3d_in_process_command_buffer_impl.h"
namespace cc {
class PixelTest::PixelTestRendererClient
: public RendererClient, public OutputSurfaceClient {
public:
explicit PixelTestRendererClient(gfx::Rect device_viewport)
: device_viewport_(device_viewport) {}
// RendererClient implementation.
virtual gfx::Rect DeviceViewport() const OVERRIDE {
return device_viewport_;
}
virtual float DeviceScaleFactor() const OVERRIDE {
return 1.f;
}
virtual const LayerTreeSettings& Settings() const OVERRIDE {
return settings_;
}
virtual void SetFullRootLayerDamage() OVERRIDE {}
virtual bool HasImplThread() const OVERRIDE { return false; }
virtual bool ShouldClearRootRenderPass() const OVERRIDE { return true; }
virtual CompositorFrameMetadata MakeCompositorFrameMetadata() const
OVERRIDE {
return CompositorFrameMetadata();
}
virtual bool AllowPartialSwap() const OVERRIDE {
return true;
}
// OutputSurfaceClient implementation.
virtual bool DeferredInitialize(
scoped_refptr<ContextProvider> offscreen_context_provider) OVERRIDE {
return false;
}
virtual void SetNeedsRedrawRect(gfx::Rect damage_rect) OVERRIDE {}
virtual void BeginFrame(const BeginFrameArgs& args) OVERRIDE {}
virtual void OnSwapBuffersComplete(const CompositorFrameAck* ack) OVERRIDE {}
virtual void DidLoseOutputSurface() OVERRIDE {}
virtual void SetExternalDrawConstraints(const gfx::Transform& transform,
gfx::Rect viewport) OVERRIDE {
device_viewport_ = viewport;
}
virtual void SetMemoryPolicy(
const ManagedMemoryPolicy& policy, bool discard) OVERRIDE {}
private:
gfx::Rect device_viewport_;
LayerTreeSettings settings_;
};
PixelTest::PixelTest()
: device_viewport_size_(gfx::Size(200, 200)),
fake_client_(
new PixelTestRendererClient(gfx::Rect(device_viewport_size_))) {}
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) {
base::RunLoop run_loop;
target->copy_requests.push_back(CopyOutputRequest::CreateBitmapRequest(
base::Bind(&PixelTest::ReadbackResult,
base::Unretained(this),
run_loop.QuitClosure())));
renderer_->DecideRenderPassAllocationsForFrame(*pass_list);
renderer_->DrawFrame(pass_list);
// Wait for the readback to complete.
resource_provider_->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(cc::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;
// To rebaseline:
// 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) {
CHECK(fake_client_);
CHECK(gfx::InitializeGLBindings(gfx::kGLImplementationOSMesaGL));
using webkit::gpu::WebGraphicsContext3DInProcessCommandBufferImpl;
scoped_ptr<WebKit::WebGraphicsContext3D> context3d(
WebGraphicsContext3DInProcessCommandBufferImpl::CreateOffscreenContext(
WebKit::WebGraphicsContext3D::Attributes()));
output_surface_.reset(new PixelTestOutputSurface(
context3d.PassAs<WebKit::WebGraphicsContext3D>()));
output_surface_->BindToClient(fake_client_.get());
resource_provider_ = ResourceProvider::Create(output_surface_.get(), 0);
renderer_ = GLRenderer::Create(fake_client_.get(),
output_surface_.get(),
resource_provider_.get(),
0,
use_skia_gpu_backend).PassAs<DirectRenderer>();
scoped_refptr<webkit::gpu::ContextProviderInProcess> offscreen_contexts =
webkit::gpu::ContextProviderInProcess::Create();
ASSERT_TRUE(offscreen_contexts->BindToCurrentThread());
resource_provider_->set_offscreen_context_provider(offscreen_contexts);
}
void PixelTest::ForceExpandedViewport(gfx::Size surface_expansion,
gfx::Vector2d viewport_offset) {
static_cast<PixelTestOutputSurface*>(output_surface_.get())
->set_surface_expansion_size(surface_expansion);
static_cast<PixelTestOutputSurface*>(output_surface_.get())
->set_viewport_offset(viewport_offset);
SoftwareOutputDevice* device = output_surface_->software_device();
if (device) {
static_cast<PixelTestSoftwareOutputDevice*>(device)
->set_surface_expansion_size(surface_expansion);
}
}
void PixelTest::SetUpSoftwareRenderer() {
CHECK(fake_client_);
scoped_ptr<SoftwareOutputDevice> device(new PixelTestSoftwareOutputDevice());
output_surface_.reset(new PixelTestOutputSurface(device.Pass()));
output_surface_->BindToClient(fake_client_.get());
resource_provider_ = ResourceProvider::Create(output_surface_.get(), 0);
renderer_ = SoftwareRenderer::Create(
fake_client_.get(),
output_surface_.get(),
resource_provider_.get()).PassAs<DirectRenderer>();
}
} // namespace cc
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