Add CC software renderer.

cc/CCRendererSoftwareTest.cpp

Index: cc/CCRendererSoftwareTest.cpp
diff --git a/cc/CCRendererSoftwareTest.cpp b/cc/CCRendererSoftwareTest.cpp
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+++ b/cc/CCRendererSoftwareTest.cpp
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+// 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 "config.h"
+
+#include "CCRendererSoftware.h"
+
+#include "CCAnimationTestCommon.h"
+#include "CCGeometryTestUtils.h"
+#include "CCQuadSink.h"
+#include "CCRenderPass.h"
+#include "CCRenderPassDrawQuad.h"
+#include "CCSettings.h"
+#include "CCSingleThreadProxy.h" // For DebugScopedSetImplThread
+#include "CCSolidColorDrawQuad.h"
+#include "CCTestCommon.h"
+#include "CCTileDrawQuad.h"
+#include "FakeWebCompositorSoftwareOutputDevice.h"
+#include "FakeWebCompositorOutputSurface.h"
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+#include <wtf/OwnArrayPtr.h>
+
+using namespace cc;
+using namespace WebKit;
+using namespace WebKitTests;
+
+namespace {
+
+class CCRendererSoftwareTest : public testing::Test, public CCRendererClient {
+public:
+    void initializeRenderer() {
+        m_outputSurface = FakeWebCompositorOutputSurface::createSoftware(adoptPtr(new FakeWebCompositorSoftwareOutputDevice));
+        m_resourceProvider = CCResourceProvider::create(m_outputSurface.get());
+        m_renderer = CCRendererSoftware::create(this, resourceProvider(), softwareDevice());
+    }
+
+    WebCompositorSoftwareOutputDevice* softwareDevice() const { return m_outputSurface->softwareDevice(); }
+    FakeWebCompositorOutputSurface* outputSurface() const { return m_outputSurface.get(); }
+    CCResourceProvider* resourceProvider() const { return m_resourceProvider.get(); }
+    CCRendererSoftware* renderer() const { return m_renderer.get(); }
+    void setViewportSize(IntSize viewportSize) { m_viewportSize = viewportSize; }
+
+    // CCRendererClient implementation.
+    virtual const IntSize& deviceViewportSize() const OVERRIDE { return m_viewportSize; }
+    virtual const CCLayerTreeSettings& settings() const OVERRIDE { return m_settings; }
+    virtual void didLoseContext() OVERRIDE { }
+    virtual void onSwapBuffersComplete() OVERRIDE { }
+    virtual void setFullRootLayerDamage() OVERRIDE { }
+    virtual void releaseContentsTextures() OVERRIDE { }
+    virtual void setMemoryAllocationLimitBytes(size_t) OVERRIDE { }
+
+protected:
+    DebugScopedSetImplThread m_alwaysImplThread;
+
+    OwnPtr<FakeWebCompositorOutputSurface> m_outputSurface;
+    OwnPtr<CCResourceProvider> m_resourceProvider;
+    OwnPtr<CCRendererSoftware> m_renderer;
+    IntSize m_viewportSize;
+    CCLayerTreeSettings m_settings;
+};
+
+class CCTestRenderPass : public CCRenderPass {
+public:
+    static PassOwnPtr<CCTestRenderPass> create(CCRenderPass::Id id, IntRect outputRect, const WebTransformationMatrix& rootTransform) { return adoptPtr(new CCTestRenderPass(id, outputRect, rootTransform)); }
+
+    void appendQuad(PassOwnPtr<CCDrawQuad> quad) { m_quadList.append(quad); }
+
+protected:
+    CCTestRenderPass(CCRenderPass::Id id, IntRect outputRect, const WebTransformationMatrix& rootTransform) : CCRenderPass(id, outputRect, rootTransform) { }
+};
+
+
+TEST_F(CCRendererSoftwareTest, solidColorQuad)
+{
+    IntSize outerSize(100, 100);
+    int outerPixels = outerSize.width() * outerSize.height();
+    IntSize innerSize(98, 98);
+    IntRect outerRect(IntPoint(), outerSize);
+    IntRect innerRect(IntPoint(1, 1), innerSize);
+    setViewportSize(outerSize);
+
+    initializeRenderer();
+
+    OwnPtr<CCSharedQuadState> sharedQuadState = CCSharedQuadState::create(WebTransformationMatrix(), outerRect, outerRect, 1.0, true);
+    CCRenderPass::Id rootRenderPassId = CCRenderPass::Id(1, 1);
+    OwnPtr<CCRenderPass> rootRenderPass = CCTestRenderPass::create(rootRenderPassId, outerRect, WebTransformationMatrix());
+    CCTestRenderPass* testRenderPass = static_cast<CCTestRenderPass*>(rootRenderPass.get());
+    OwnPtr<CCDrawQuad> outerQuad = CCSolidColorDrawQuad::create(sharedQuadState.get(), outerRect, SK_ColorYELLOW);
+    OwnPtr<CCDrawQuad> innerQuad = CCSolidColorDrawQuad::create(sharedQuadState.get(), innerRect, SK_ColorCYAN);
+    testRenderPass->appendQuad(innerQuad.release());
+    testRenderPass->appendQuad(outerQuad.release());
+
+    CCRenderPassList list;
+    CCRenderPassIdHashMap hashmap;
+    list.append(rootRenderPass.get());
+    hashmap.add(rootRenderPassId, rootRenderPass.release());
+    renderer()->drawFrame(list, hashmap);
+
+    OwnArrayPtr<SkColor> pixels = adoptArrayPtr(new SkColor[deviceViewportSize().width() * deviceViewportSize().height()]);
+    renderer()->getFramebufferPixels(pixels.get(), outerRect);
+
+    EXPECT_EQ(SK_ColorYELLOW, pixels[0]);
+    EXPECT_EQ(SK_ColorYELLOW, pixels[outerPixels - 1]);
+    EXPECT_EQ(SK_ColorCYAN, pixels[outerSize.width() + 1]);
+    EXPECT_EQ(SK_ColorCYAN, pixels[outerPixels - outerSize.width() - 2]);
+}
+
+TEST_F(CCRendererSoftwareTest, tileQuad)
+{
+    IntSize outerSize(100, 100);
+    int outerPixels = outerSize.width() * outerSize.height();
+    IntSize innerSize(98, 98);
+    int innerPixels = innerSize.width() * innerSize.height();
+    IntRect outerRect(IntPoint(), outerSize);
+    IntRect innerRect(IntPoint(1, 1), innerSize);
+    setViewportSize(outerSize);
+    initializeRenderer();
+
+    CCResourceProvider::ResourceId resourceYellow = resourceProvider()->createResource(1, outerSize, GraphicsContext3D::RGBA, CCResourceProvider::TextureUsageAny);
+    CCResourceProvider::ResourceId resourceCyan = resourceProvider()->createResource(1, innerSize, GraphicsContext3D::RGBA, CCResourceProvider::TextureUsageAny);
+
+    SkColor yellow = SK_ColorYELLOW;
+    SkColor cyan = SK_ColorCYAN;
+    OwnArrayPtr<SkColor> yellowPixels = adoptArrayPtr(new SkColor[outerPixels]);
+    OwnArrayPtr<SkColor> cyanPixels = adoptArrayPtr(new SkColor[innerPixels]);
+    for (int i = 0; i < outerPixels; i++)
+      yellowPixels[i] = yellow;
+    for (int i = 0; i < innerPixels; i++)
+      cyanPixels[i] = cyan;
+
+    resourceProvider()->upload(resourceYellow, reinterpret_cast<uint8_t*>(yellowPixels.get()), IntRect(IntPoint(), outerSize), IntRect(IntPoint(), outerSize), IntSize());
+    resourceProvider()->upload(resourceCyan, reinterpret_cast<uint8_t*>(cyanPixels.get()), IntRect(IntPoint(), innerSize), IntRect(IntPoint(), innerSize), IntSize());
+
+    IntRect rect = IntRect(IntPoint(), deviceViewportSize());
+
+    OwnPtr<CCSharedQuadState> sharedQuadState = CCSharedQuadState::create(WebTransformationMatrix(), outerRect, outerRect, 1.0, true);
+    CCRenderPass::Id rootRenderPassId = CCRenderPass::Id(1, 1);
+    OwnPtr<CCRenderPass> rootRenderPass = CCTestRenderPass::create(rootRenderPassId, IntRect(IntPoint(), deviceViewportSize()), WebTransformationMatrix());
+    CCTestRenderPass* testRenderPass = static_cast<CCTestRenderPass*>(rootRenderPass.get());
+    OwnPtr<CCDrawQuad> outerQuad = CCTileDrawQuad::create(sharedQuadState.get(), outerRect, outerRect, resourceYellow, IntPoint(), outerSize, 0, false, false, false, false, false);
+    OwnPtr<CCDrawQuad> innerQuad = CCTileDrawQuad::create(sharedQuadState.get(), innerRect, innerRect, resourceCyan, IntPoint(), innerSize, 0, false, false, false, false, false);
+    testRenderPass->appendQuad(innerQuad.release());
+    testRenderPass->appendQuad(outerQuad.release());
+
+    CCRenderPassList list;
+    CCRenderPassIdHashMap hashmap;
+    list.append(rootRenderPass.get());
+    hashmap.add(rootRenderPassId, rootRenderPass.release());
+    renderer()->drawFrame(list, hashmap);
+
+    OwnArrayPtr<SkColor> pixels = adoptArrayPtr(new SkColor[deviceViewportSize().width() * deviceViewportSize().height()]);
+    renderer()->getFramebufferPixels(pixels.get(), outerRect);
+
+    EXPECT_EQ(SK_ColorYELLOW, pixels[0]);
+    EXPECT_EQ(SK_ColorYELLOW, pixels[outerPixels - 1]);
+    EXPECT_EQ(SK_ColorCYAN, pixels[outerSize.width() + 1]);
+    EXPECT_EQ(SK_ColorCYAN, pixels[outerPixels - outerSize.width() - 2]);
+}
+
+} // namespace