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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/output/output_surface.h"
#include "cc/output/output_surface_client.h"
#include "cc/output/software_output_device.h"
#include "cc/test/scheduler_test_common.h"
#include "cc/test/test_web_graphics_context_3d.h"
#include "gpu/GLES2/gl2extchromium.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace cc {
namespace {
class TestOutputSurface : public OutputSurface {
public:
explicit TestOutputSurface(scoped_ptr<WebKit::WebGraphicsContext3D> context3d)
: OutputSurface(context3d.Pass()) {}
explicit TestOutputSurface(
scoped_ptr<cc::SoftwareOutputDevice> software_device)
: OutputSurface(software_device.Pass()) {}
TestOutputSurface(scoped_ptr<WebKit::WebGraphicsContext3D> context3d,
scoped_ptr<cc::SoftwareOutputDevice> software_device)
: OutputSurface(context3d.Pass(), software_device.Pass()) {}
bool InitializeNewContext3D(
scoped_ptr<WebKit::WebGraphicsContext3D> new_context3d) {
return InitializeAndSetContext3D(new_context3d.Pass(),
scoped_refptr<ContextProvider>());
}
bool HasClientForTesting() {
return HasClient();
}
void OnVSyncParametersChangedForTesting(base::TimeTicks timebase,
base::TimeDelta interval) {
OnVSyncParametersChanged(timebase, interval);
}
void BeginFrameForTesting(base::TimeTicks frame_time) {
BeginFrame(frame_time);
}
void DidSwapBuffersForTesting() {
DidSwapBuffers();
}
int pending_swap_buffers() {
return pending_swap_buffers_;
}
void OnSwapBuffersCompleteForTesting() {
OnSwapBuffersComplete(NULL);
}
};
class FakeOutputSurfaceClient : public OutputSurfaceClient {
public:
FakeOutputSurfaceClient()
: begin_frame_count_(0),
deferred_initialize_result_(true),
deferred_initialize_called_(false),
did_lose_output_surface_called_(false) {}
virtual bool DeferredInitialize(
scoped_refptr<ContextProvider> offscreen_context_provider) OVERRIDE {
deferred_initialize_called_ = true;
return deferred_initialize_result_;
}
virtual void SetNeedsRedrawRect(gfx::Rect damage_rect) OVERRIDE {}
virtual void BeginFrame(base::TimeTicks frame_time) OVERRIDE {
begin_frame_count_++;
}
virtual void OnSwapBuffersComplete(const CompositorFrameAck* ack) OVERRIDE {}
virtual void DidLoseOutputSurface() OVERRIDE {
did_lose_output_surface_called_ = true;
}
virtual void SetExternalDrawConstraints(const gfx::Transform& transform,
gfx::Rect viewport) OVERRIDE {}
int begin_frame_count() {
return begin_frame_count_;
}
void set_deferred_initialize_result(bool result) {
deferred_initialize_result_ = result;
}
bool deferred_initialize_called() {
return deferred_initialize_called_;
}
bool did_lose_output_surface_called() {
return did_lose_output_surface_called_;
}
private:
int begin_frame_count_;
bool deferred_initialize_result_;
bool deferred_initialize_called_;
bool did_lose_output_surface_called_;
};
TEST(OutputSurfaceTest, ClientPointerIndicatesBindToClientSuccess) {
scoped_ptr<TestWebGraphicsContext3D> context3d =
TestWebGraphicsContext3D::Create();
TestOutputSurface output_surface(
context3d.PassAs<WebKit::WebGraphicsContext3D>());
EXPECT_FALSE(output_surface.HasClientForTesting());
FakeOutputSurfaceClient client;
EXPECT_TRUE(output_surface.BindToClient(&client));
EXPECT_TRUE(output_surface.HasClientForTesting());
EXPECT_FALSE(client.deferred_initialize_called());
// Verify DidLoseOutputSurface callback is hooked up correctly.
EXPECT_FALSE(client.did_lose_output_surface_called());
output_surface.context3d()->loseContextCHROMIUM(
GL_GUILTY_CONTEXT_RESET_ARB, GL_INNOCENT_CONTEXT_RESET_ARB);
EXPECT_TRUE(client.did_lose_output_surface_called());
}
TEST(OutputSurfaceTest, ClientPointerIndicatesBindToClientFailure) {
scoped_ptr<TestWebGraphicsContext3D> context3d =
TestWebGraphicsContext3D::Create();
// Lose the context so BindToClient fails.
context3d->set_times_make_current_succeeds(0);
TestOutputSurface output_surface(
context3d.PassAs<WebKit::WebGraphicsContext3D>());
EXPECT_FALSE(output_surface.HasClientForTesting());
FakeOutputSurfaceClient client;
EXPECT_FALSE(output_surface.BindToClient(&client));
EXPECT_FALSE(output_surface.HasClientForTesting());
}
class InitializeNewContext3D : public ::testing::Test {
public:
InitializeNewContext3D()
: context3d_(TestWebGraphicsContext3D::Create()),
output_surface_(
scoped_ptr<SoftwareOutputDevice>(new SoftwareOutputDevice)) {}
protected:
void BindOutputSurface() {
EXPECT_TRUE(output_surface_.BindToClient(&client_));
EXPECT_TRUE(output_surface_.HasClientForTesting());
}
void InitializeNewContextExpectFail() {
EXPECT_FALSE(output_surface_.InitializeNewContext3D(
context3d_.PassAs<WebKit::WebGraphicsContext3D>()));
EXPECT_TRUE(output_surface_.HasClientForTesting());
EXPECT_FALSE(output_surface_.context3d());
EXPECT_TRUE(output_surface_.software_device());
}
scoped_ptr<TestWebGraphicsContext3D> context3d_;
TestOutputSurface output_surface_;
FakeOutputSurfaceClient client_;
};
TEST_F(InitializeNewContext3D, Success) {
BindOutputSurface();
EXPECT_FALSE(client_.deferred_initialize_called());
EXPECT_TRUE(output_surface_.InitializeNewContext3D(
context3d_.PassAs<WebKit::WebGraphicsContext3D>()));
EXPECT_TRUE(client_.deferred_initialize_called());
EXPECT_FALSE(client_.did_lose_output_surface_called());
output_surface_.context3d()->loseContextCHROMIUM(
GL_GUILTY_CONTEXT_RESET_ARB, GL_INNOCENT_CONTEXT_RESET_ARB);
EXPECT_TRUE(client_.did_lose_output_surface_called());
}
TEST_F(InitializeNewContext3D, Context3dMakeCurrentFails) {
BindOutputSurface();
context3d_->set_times_make_current_succeeds(0);
InitializeNewContextExpectFail();
}
TEST_F(InitializeNewContext3D, ClientDeferredInitializeFails) {
BindOutputSurface();
client_.set_deferred_initialize_result(false);
InitializeNewContextExpectFail();
}
TEST(OutputSurfaceTest, BeginFrameEmulation) {
scoped_ptr<TestWebGraphicsContext3D> context3d =
TestWebGraphicsContext3D::Create();
TestOutputSurface output_surface(
context3d.PassAs<WebKit::WebGraphicsContext3D>());
EXPECT_FALSE(output_surface.HasClientForTesting());
FakeOutputSurfaceClient client;
EXPECT_TRUE(output_surface.BindToClient(&client));
EXPECT_TRUE(output_surface.HasClientForTesting());
EXPECT_FALSE(client.deferred_initialize_called());
// Initialize BeginFrame emulation
FakeThread impl_thread;
bool throttle_frame_production = true;
const base::TimeDelta display_refresh_interval =
base::TimeDelta::FromMicroseconds(16666);
output_surface.InitializeBeginFrameEmulation(
&impl_thread,
throttle_frame_production,
display_refresh_interval);
output_surface.SetMaxFramesPending(2);
// We should start off with 0 BeginFrames
EXPECT_EQ(client.begin_frame_count(), 0);
EXPECT_EQ(output_surface.pending_swap_buffers(), 0);
// We should not have a pending task until a BeginFrame has been requested.
EXPECT_FALSE(impl_thread.HasPendingTask());
output_surface.SetNeedsBeginFrame(true);
EXPECT_TRUE(impl_thread.HasPendingTask());
// BeginFrame should be called on the first tick.
impl_thread.RunPendingTask();
EXPECT_EQ(client.begin_frame_count(), 1);
EXPECT_EQ(output_surface.pending_swap_buffers(), 0);
// BeginFrame should not be called when there is a pending BeginFrame.
impl_thread.RunPendingTask();
EXPECT_EQ(client.begin_frame_count(), 1);
EXPECT_EQ(output_surface.pending_swap_buffers(), 0);
// DidSwapBuffers should clear the pending BeginFrame.
output_surface.DidSwapBuffersForTesting();
EXPECT_EQ(client.begin_frame_count(), 1);
EXPECT_EQ(output_surface.pending_swap_buffers(), 1);
impl_thread.RunPendingTask();
EXPECT_EQ(client.begin_frame_count(), 2);
EXPECT_EQ(output_surface.pending_swap_buffers(), 1);
// BeginFrame should be throttled by pending swap buffers.
output_surface.DidSwapBuffersForTesting();
EXPECT_EQ(client.begin_frame_count(), 2);
EXPECT_EQ(output_surface.pending_swap_buffers(), 2);
impl_thread.RunPendingTask();
EXPECT_EQ(client.begin_frame_count(), 2);
EXPECT_EQ(output_surface.pending_swap_buffers(), 2);
// SwapAck should decrement pending swap buffers and unblock BeginFrame again.
output_surface.OnSwapBuffersCompleteForTesting();
EXPECT_EQ(client.begin_frame_count(), 2);
EXPECT_EQ(output_surface.pending_swap_buffers(), 1);
impl_thread.RunPendingTask();
EXPECT_EQ(client.begin_frame_count(), 3);
EXPECT_EQ(output_surface.pending_swap_buffers(), 1);
// Calling SetNeedsBeginFrame again indicates a swap did not occur but
// the client still wants another BeginFrame.
output_surface.SetNeedsBeginFrame(true);
impl_thread.RunPendingTask();
EXPECT_EQ(client.begin_frame_count(), 4);
EXPECT_EQ(output_surface.pending_swap_buffers(), 1);
// Disabling SetNeedsBeginFrame should prevent further BeginFrames.
output_surface.SetNeedsBeginFrame(false);
impl_thread.RunPendingTask();
EXPECT_FALSE(impl_thread.HasPendingTask());
EXPECT_EQ(client.begin_frame_count(), 4);
EXPECT_EQ(output_surface.pending_swap_buffers(), 1);
// Optimistically injected BeginFrames without a SetNeedsBeginFrame should be
// allowed.
output_surface.BeginFrameForTesting(base::TimeTicks::Now());
EXPECT_EQ(client.begin_frame_count(), 5);
EXPECT_EQ(output_surface.pending_swap_buffers(), 1);
// Optimistically injected BeginFrames without a SetNeedsBeginFrame should
// still be throttled by pending begin frames however.
output_surface.BeginFrameForTesting(base::TimeTicks::Now());
EXPECT_EQ(client.begin_frame_count(), 5);
EXPECT_EQ(output_surface.pending_swap_buffers(), 1);
// Optimistically injected BeginFrames without a SetNeedsBeginFrame should
// also be throttled by pending swap buffers.
output_surface.DidSwapBuffersForTesting();
EXPECT_EQ(client.begin_frame_count(), 5);
EXPECT_EQ(output_surface.pending_swap_buffers(), 2);
output_surface.BeginFrameForTesting(base::TimeTicks::Now());
EXPECT_EQ(client.begin_frame_count(), 5);
EXPECT_EQ(output_surface.pending_swap_buffers(), 2);
}
} // namespace
} // namespace cc
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