Moving GraphicsContext and dependencies from core to platform.

Source/core/platform/image-decoders/ImageDecoderTest.cpp

Index: Source/core/platform/image-decoders/ImageDecoderTest.cpp
diff --git a/Source/core/platform/image-decoders/ImageDecoderTest.cpp b/Source/core/platform/image-decoders/ImageDecoderTest.cpp
deleted file mode 100644
index 7227f5ff8a644a4026c530fb1d265fb4e9f1cf49..0000000000000000000000000000000000000000
--- a/Source/core/platform/image-decoders/ImageDecoderTest.cpp
+++ /dev/null
@@ -1,248 +0,0 @@
-/*
- * Copyright (C) 2013 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-
-#include "core/platform/image-decoders/ImageDecoder.h"
-
-#include "wtf/OwnPtr.h"
-#include "wtf/PassOwnPtr.h"
-#include "wtf/Vector.h"
-#include <gtest/gtest.h>
-
-using namespace WebCore;
-
-class TestImageDecoder : public ImageDecoder {
-public:
-    TestImageDecoder()
-        : ImageDecoder(ImageSource::AlphaNotPremultiplied, ImageSource::GammaAndColorProfileApplied, noDecodedImageByteLimit)
-    {
-    }
-
-    virtual String filenameExtension() const OVERRIDE { return ""; }
-    virtual ImageFrame* frameBufferAtIndex(size_t) OVERRIDE { return 0; }
-
-    Vector<ImageFrame, 1>& frameBufferCache()
-    {
-        return m_frameBufferCache;
-    }
-
-    void resetRequiredPreviousFrames(bool knownOpaque = false)
-    {
-        for (size_t i = 0; i < m_frameBufferCache.size(); ++i)
-            m_frameBufferCache[i].setRequiredPreviousFrameIndex(findRequiredPreviousFrame(i, knownOpaque));
-    }
-
-    void initFrames(size_t numFrames, unsigned width = 100, unsigned height = 100)
-    {
-        setSize(width, height);
-        m_frameBufferCache.resize(numFrames);
-        for (size_t i = 0; i < numFrames; ++i)
-            m_frameBufferCache[i].setOriginalFrameRect(IntRect(0, 0, width, height));
-    }
-};
-
-TEST(ImageDecoderTest, sizeCalculationMayOverflow)
-{
-    OwnPtr<TestImageDecoder> decoder(adoptPtr(new TestImageDecoder()));
-    EXPECT_FALSE(decoder->setSize(1 << 29, 1));
-    EXPECT_FALSE(decoder->setSize(1, 1 << 29));
-    EXPECT_FALSE(decoder->setSize(1 << 15, 1 << 15));
-    EXPECT_TRUE(decoder->setSize(1 << 28, 1));
-    EXPECT_TRUE(decoder->setSize(1, 1 << 28));
-    EXPECT_TRUE(decoder->setSize(1 << 14, 1 << 14));
-}
-
-TEST(ImageDecoderTest, requiredPreviousFrameIndex)
-{
-    OwnPtr<TestImageDecoder> decoder(adoptPtr(new TestImageDecoder()));
-    decoder->initFrames(6);
-    Vector<ImageFrame, 1>& frameBuffers = decoder->frameBufferCache();
-
-    frameBuffers[1].setDisposalMethod(ImageFrame::DisposeKeep);
-    frameBuffers[2].setDisposalMethod(ImageFrame::DisposeOverwritePrevious);
-    frameBuffers[3].setDisposalMethod(ImageFrame::DisposeOverwritePrevious);
-    frameBuffers[4].setDisposalMethod(ImageFrame::DisposeKeep);
-
-    decoder->resetRequiredPreviousFrames();
-
-    // The first frame doesn't require any previous frame.
-    EXPECT_EQ(kNotFound, frameBuffers[0].requiredPreviousFrameIndex());
-    // The previous DisposeNotSpecified frame is required.
-    EXPECT_EQ(0u, frameBuffers[1].requiredPreviousFrameIndex());
-    // DisposeKeep is treated as DisposeNotSpecified.
-    EXPECT_EQ(1u, frameBuffers[2].requiredPreviousFrameIndex());
-    // Previous DisposeOverwritePrevious frames are skipped.
-    EXPECT_EQ(1u, frameBuffers[3].requiredPreviousFrameIndex());
-    EXPECT_EQ(1u, frameBuffers[4].requiredPreviousFrameIndex());
-    EXPECT_EQ(4u, frameBuffers[5].requiredPreviousFrameIndex());
-}
-
-TEST(ImageDecoderTest, requiredPreviousFrameIndexDisposeOverwriteBgcolor)
-{
-    OwnPtr<TestImageDecoder> decoder(adoptPtr(new TestImageDecoder()));
-    decoder->initFrames(3);
-    Vector<ImageFrame, 1>& frameBuffers = decoder->frameBufferCache();
-
-    // Fully covering DisposeOverwriteBgcolor previous frame resets the starting state.
-    frameBuffers[1].setDisposalMethod(ImageFrame::DisposeOverwriteBgcolor);
-    decoder->resetRequiredPreviousFrames();
-    EXPECT_EQ(kNotFound, frameBuffers[2].requiredPreviousFrameIndex());
-
-    // Partially covering DisposeOverwriteBgcolor previous frame is required by this frame.
-    frameBuffers[1].setOriginalFrameRect(IntRect(50, 50, 50, 50));
-    decoder->resetRequiredPreviousFrames();
-    EXPECT_EQ(1u, frameBuffers[2].requiredPreviousFrameIndex());
-}
-
-TEST(ImageDecoderTest, requiredPreviousFrameIndexForFrame1)
-{
-    OwnPtr<TestImageDecoder> decoder(adoptPtr(new TestImageDecoder()));
-    decoder->initFrames(2);
-    Vector<ImageFrame, 1>& frameBuffers = decoder->frameBufferCache();
-
-    decoder->resetRequiredPreviousFrames();
-    EXPECT_EQ(0u, frameBuffers[1].requiredPreviousFrameIndex());
-
-    // The first frame with DisposeOverwritePrevious or DisposeOverwriteBgcolor
-    // resets the starting state.
-    frameBuffers[0].setDisposalMethod(ImageFrame::DisposeOverwritePrevious);
-    decoder->resetRequiredPreviousFrames();
-    EXPECT_EQ(kNotFound, frameBuffers[1].requiredPreviousFrameIndex());
-    frameBuffers[0].setDisposalMethod(ImageFrame::DisposeOverwriteBgcolor);
-    decoder->resetRequiredPreviousFrames();
-    EXPECT_EQ(kNotFound, frameBuffers[1].requiredPreviousFrameIndex());
-
-    // ... even if it partially covers.
-    frameBuffers[0].setOriginalFrameRect(IntRect(50, 50, 50, 50));
-
-    frameBuffers[0].setDisposalMethod(ImageFrame::DisposeOverwritePrevious);
-    decoder->resetRequiredPreviousFrames();
-    EXPECT_EQ(kNotFound, frameBuffers[1].requiredPreviousFrameIndex());
-    frameBuffers[0].setDisposalMethod(ImageFrame::DisposeOverwriteBgcolor);
-    decoder->resetRequiredPreviousFrames();
-    EXPECT_EQ(kNotFound, frameBuffers[1].requiredPreviousFrameIndex());
-}
-
-TEST(ImageDecoderTest, requiredPreviousFrameIndexBlendAtopBgcolor)
-{
-    OwnPtr<TestImageDecoder> decoder(adoptPtr(new TestImageDecoder()));
-    decoder->initFrames(3);
-    Vector<ImageFrame, 1>& frameBuffers = decoder->frameBufferCache();
-
-    frameBuffers[1].setOriginalFrameRect(IntRect(25, 25, 50, 50));
-    frameBuffers[2].setAlphaBlendSource(ImageFrame::BlendAtopBgcolor);
-
-    // A full frame with 'blending method == BlendAtopBgcolor' doesn't depend on any prior frames.
-    for (int disposeMethod = ImageFrame::DisposeNotSpecified; disposeMethod <= ImageFrame::DisposeOverwritePrevious; ++disposeMethod) {
-        frameBuffers[1].setDisposalMethod(static_cast<ImageFrame::DisposalMethod>(disposeMethod));
-        decoder->resetRequiredPreviousFrames();
-        EXPECT_EQ(kNotFound, frameBuffers[2].requiredPreviousFrameIndex());
-    }
-
-    // A non-full frame with 'blending method == BlendAtopBgcolor' does depend on a prior frame.
-    frameBuffers[2].setOriginalFrameRect(IntRect(50, 50, 50, 50));
-    for (int disposeMethod = ImageFrame::DisposeNotSpecified; disposeMethod <= ImageFrame::DisposeOverwritePrevious; ++disposeMethod) {
-        frameBuffers[1].setDisposalMethod(static_cast<ImageFrame::DisposalMethod>(disposeMethod));
-        decoder->resetRequiredPreviousFrames();
-        EXPECT_NE(kNotFound, frameBuffers[2].requiredPreviousFrameIndex());
-    }
-}
-
-TEST(ImageDecoderTest, requiredPreviousFrameIndexKnownOpaque)
-{
-    OwnPtr<TestImageDecoder> decoder(adoptPtr(new TestImageDecoder()));
-    decoder->initFrames(3);
-    Vector<ImageFrame, 1>& frameBuffers = decoder->frameBufferCache();
-
-    frameBuffers[1].setOriginalFrameRect(IntRect(25, 25, 50, 50));
-
-    // A full frame that is known to be opaque doesn't depend on any prior frames.
-    for (int disposeMethod = ImageFrame::DisposeNotSpecified; disposeMethod <= ImageFrame::DisposeOverwritePrevious; ++disposeMethod) {
-        frameBuffers[1].setDisposalMethod(static_cast<ImageFrame::DisposalMethod>(disposeMethod));
-        decoder->resetRequiredPreviousFrames(true);
-        EXPECT_EQ(kNotFound, frameBuffers[2].requiredPreviousFrameIndex());
-    }
-
-    // A non-full frame that is known to be opaque does depend on a prior frame.
-    frameBuffers[2].setOriginalFrameRect(IntRect(50, 50, 50, 50));
-    for (int disposeMethod = ImageFrame::DisposeNotSpecified; disposeMethod <= ImageFrame::DisposeOverwritePrevious; ++disposeMethod) {
-        frameBuffers[1].setDisposalMethod(static_cast<ImageFrame::DisposalMethod>(disposeMethod));
-        decoder->resetRequiredPreviousFrames(true);
-        EXPECT_NE(kNotFound, frameBuffers[2].requiredPreviousFrameIndex());
-    }
-}
-
-TEST(ImageDecoderTest, clearCacheExceptFrameDoNothing)
-{
-    OwnPtr<TestImageDecoder> decoder(adoptPtr(new TestImageDecoder()));
-    decoder->clearCacheExceptFrame(0);
-
-    // This should not crash.
-    decoder->initFrames(20);
-    decoder->clearCacheExceptFrame(kNotFound);
-}
-
-TEST(ImageDecoderTest, clearCacheExceptFrameAll)
-{
-    const size_t numFrames = 10;
-    OwnPtr<TestImageDecoder> decoder(adoptPtr(new TestImageDecoder()));
-    decoder->initFrames(numFrames);
-    Vector<ImageFrame, 1>& frameBuffers = decoder->frameBufferCache();
-    for (size_t i = 0; i < numFrames; ++i)
-        frameBuffers[i].setStatus(i % 2 ? ImageFrame::FramePartial : ImageFrame::FrameComplete);
-
-    decoder->clearCacheExceptFrame(kNotFound);
-
-    for (size_t i = 0; i < numFrames; ++i) {
-        SCOPED_TRACE(testing::Message() << i);
-        EXPECT_EQ(ImageFrame::FrameEmpty, frameBuffers[i].status());
-    }
-}
-
-TEST(ImageDecoderTest, clearCacheExceptFramePreverveClearExceptFrame)
-{
-    const size_t numFrames = 10;
-    OwnPtr<TestImageDecoder> decoder(adoptPtr(new TestImageDecoder()));
-    decoder->initFrames(numFrames);
-    Vector<ImageFrame, 1>& frameBuffers = decoder->frameBufferCache();
-    for (size_t i = 0; i < numFrames; ++i)
-        frameBuffers[i].setStatus(ImageFrame::FrameComplete);
-
-    decoder->resetRequiredPreviousFrames();
-    decoder->clearCacheExceptFrame(5);
-    for (size_t i = 0; i < numFrames; ++i) {
-        SCOPED_TRACE(testing::Message() << i);
-        if (i == 5)
-            EXPECT_EQ(ImageFrame::FrameComplete, frameBuffers[i].status());
-        else
-            EXPECT_EQ(ImageFrame::FrameEmpty, frameBuffers[i].status());
-    }
-}