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// Copyright 2016 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 "platform/graphics/gpu/DrawingBuffer.h"
#include "cc/resources/single_release_callback.h"
#include "cc/resources/texture_mailbox.h"
#include "gpu/command_buffer/client/gles2_interface_stub.h"
#include "platform/graphics/gpu/DrawingBufferTestHelpers.h"
#include "testing/gtest/include/gtest/gtest.h"
// These unit tests are separate from DrawingBufferTests.cpp because they are
// built as a part of webkit_unittests instead blink_platform_unittests. This is
// because the software rendering mode has a dependency on the blink::Platform
// interface for buffer allocations.
namespace blink {
namespace {
using namespace testing;
class WebGraphicsContext3DProviderSoftwareRenderingForTests
: public WebGraphicsContext3DProvider {
public:
WebGraphicsContext3DProviderSoftwareRenderingForTests(
std::unique_ptr<gpu::gles2::GLES2Interface> gl)
: m_gl(std::move(gl)) {}
gpu::gles2::GLES2Interface* contextGL() override { return m_gl.get(); }
bool isSoftwareRendering() const override { return true; }
// Not used by WebGL code.
GrContext* grContext() override { return nullptr; }
bool bindToCurrentThread() override { return false; }
gpu::Capabilities getCapabilities() override { return gpu::Capabilities(); }
void setLostContextCallback(const base::Closure&) {}
void setErrorMessageCallback(
const base::Callback<void(const char*, int32_t id)>&) {}
void signalQuery(uint32_t, const base::Closure&) override {}
private:
std::unique_ptr<gpu::gles2::GLES2Interface> m_gl;
};
class DrawingBufferSoftwareRenderingTest : public Test {
protected:
void SetUp() override {
IntSize initialSize(InitialWidth, InitialHeight);
std::unique_ptr<GLES2InterfaceForTests> gl =
WTF::wrapUnique(new GLES2InterfaceForTests);
std::unique_ptr<WebGraphicsContext3DProviderSoftwareRenderingForTests>
provider = WTF::wrapUnique(
new WebGraphicsContext3DProviderSoftwareRenderingForTests(
std::move(gl)));
m_drawingBuffer = DrawingBufferForTests::create(
std::move(provider), nullptr, initialSize, DrawingBuffer::Preserve);
CHECK(m_drawingBuffer);
}
RefPtr<DrawingBufferForTests> m_drawingBuffer;
bool m_isSoftwareRendering = false;
};
TEST_F(DrawingBufferSoftwareRenderingTest, bitmapRecycling) {
cc::TextureMailbox textureMailbox;
std::unique_ptr<cc::SingleReleaseCallback> releaseCallback1;
std::unique_ptr<cc::SingleReleaseCallback> releaseCallback2;
std::unique_ptr<cc::SingleReleaseCallback> releaseCallback3;
IntSize initialSize(InitialWidth, InitialHeight);
IntSize alternateSize(InitialWidth, AlternateHeight);
m_drawingBuffer->resize(initialSize);
m_drawingBuffer->markContentsChanged();
m_drawingBuffer->PrepareTextureMailbox(
&textureMailbox, &releaseCallback1); // create a bitmap.
EXPECT_EQ(0, m_drawingBuffer->recycledBitmapCount());
releaseCallback1->Run(
gpu::SyncToken(),
false /* lostResource */); // release bitmap to the recycling queue
EXPECT_EQ(1, m_drawingBuffer->recycledBitmapCount());
m_drawingBuffer->markContentsChanged();
m_drawingBuffer->PrepareTextureMailbox(
&textureMailbox, &releaseCallback2); // recycle a bitmap.
EXPECT_EQ(0, m_drawingBuffer->recycledBitmapCount());
releaseCallback2->Run(
gpu::SyncToken(),
false /* lostResource */); // release bitmap to the recycling queue
EXPECT_EQ(1, m_drawingBuffer->recycledBitmapCount());
m_drawingBuffer->resize(alternateSize);
m_drawingBuffer->markContentsChanged();
// Regression test for crbug.com/647896 - Next line must not crash
m_drawingBuffer->PrepareTextureMailbox(
&textureMailbox,
&releaseCallback3); // cause recycling queue to be purged due to resize
EXPECT_EQ(0, m_drawingBuffer->recycledBitmapCount());
releaseCallback3->Run(gpu::SyncToken(), false /* lostResource */);
EXPECT_EQ(1, m_drawingBuffer->recycledBitmapCount());
m_drawingBuffer->beginDestruction();
}
} // unnamed namespace
} // blink
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