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      1 /*
      2  * Copyright (c) 2013, Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
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      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
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     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 #include "platform/graphics/BitmapImage.h"
     33 
     34 #include "platform/SharedBuffer.h"
     35 #include "platform/graphics/DeferredImageDecoder.h"
     36 #include "platform/graphics/ImageObserver.h"
     37 #include "public/platform/Platform.h"
     38 #include "public/platform/WebUnitTestSupport.h"
     39 
     40 #include <gtest/gtest.h>
     41 
     42 namespace blink {
     43 
     44 class BitmapImageTest : public ::testing::Test {
     45 public:
     46     class FakeImageObserver : public ImageObserver {
     47     public:
     48         FakeImageObserver() : m_lastDecodedSizeChangedDelta(0) { }
     49 
     50         virtual void decodedSizeChanged(const Image*, int delta)
     51         {
     52             m_lastDecodedSizeChangedDelta = delta;
     53         }
     54         virtual void didDraw(const Image*) OVERRIDE { }
     55         virtual bool shouldPauseAnimation(const Image*) OVERRIDE { return false; }
     56         virtual void animationAdvanced(const Image*) OVERRIDE { }
     57         virtual void changedInRect(const Image*, const IntRect&) { }
     58 
     59         int m_lastDecodedSizeChangedDelta;
     60     };
     61 
     62     static PassRefPtr<SharedBuffer> readFile(const char* fileName)
     63     {
     64         String filePath = Platform::current()->unitTestSupport()->webKitRootDir();
     65         filePath.append(fileName);
     66         return Platform::current()->unitTestSupport()->readFromFile(filePath);
     67     }
     68 
     69     // Accessors to BitmapImage's protected methods.
     70     void destroyDecodedData(bool destroyAll) { m_image->destroyDecodedData(destroyAll); }
     71     size_t frameCount() { return m_image->frameCount(); }
     72     void setCurrentFrame(size_t frame) { m_image->m_currentFrame = frame; }
     73     size_t frameDecodedSize(size_t frame) { return m_image->m_frames[frame].m_frameBytes; }
     74     size_t decodedFramesCount() const { return m_image->m_frames.size(); }
     75     void resetDecoder() { return m_image->resetDecoder(); }
     76 
     77     void loadImage(const char* fileName)
     78     {
     79         RefPtr<SharedBuffer> imageData = readFile(fileName);
     80         ASSERT_TRUE(imageData.get());
     81 
     82         m_image->setData(imageData, true);
     83         EXPECT_EQ(0u, decodedSize());
     84 
     85         size_t frameCount = m_image->frameCount();
     86         for (size_t i = 0; i < frameCount; ++i)
     87             m_image->frameAtIndex(i);
     88     }
     89 
     90     size_t decodedSize()
     91     {
     92         // In the context of this test, the following loop will give the correct result, but only because the test
     93         // forces all frames to be decoded in loadImage() above. There is no general guarantee that frameDecodedSize()
     94         // is up-to-date. Because of how multi frame images (like GIF) work, requesting one frame to be decoded may
     95         // require other previous frames to be decoded as well. In those cases frameDecodedSize() wouldn't return the
     96         // correct thing for the previous frame because the decoded size wouldn't have propagated upwards to the
     97         // BitmapImage frame cache.
     98         size_t size = 0;
     99         for (size_t i = 0; i < decodedFramesCount(); ++i)
    100             size += frameDecodedSize(i);
    101         return size;
    102     }
    103 
    104     void advanceAnimation()
    105     {
    106         m_image->advanceAnimation(0);
    107     }
    108 
    109     PassRefPtr<Image> imageForDefaultFrame()
    110     {
    111         return m_image->imageForDefaultFrame();
    112     }
    113 
    114 protected:
    115     virtual void SetUp() OVERRIDE
    116     {
    117         DeferredImageDecoder::setEnabled(false);
    118         m_image = BitmapImage::create(&m_imageObserver);
    119     }
    120 
    121     FakeImageObserver m_imageObserver;
    122     RefPtr<BitmapImage> m_image;
    123 };
    124 
    125 // Fails on the WebKit XP (deps) bot, see http://crbug.com/327104
    126 #if OS(WIN)
    127 TEST_F(BitmapImageTest, DISABLED_destroyDecodedDataExceptCurrentFrame)
    128 #else
    129 TEST_F(BitmapImageTest, destroyDecodedDataExceptCurrentFrame)
    130 #endif
    131 {
    132     loadImage("/LayoutTests/fast/images/resources/animated-10color.gif");
    133     size_t totalSize = decodedSize();
    134     size_t frame = frameCount() / 2;
    135     setCurrentFrame(frame);
    136     size_t size = frameDecodedSize(frame);
    137     destroyDecodedData(false);
    138     EXPECT_LT(m_imageObserver.m_lastDecodedSizeChangedDelta, 0);
    139     EXPECT_GE(m_imageObserver.m_lastDecodedSizeChangedDelta, -static_cast<int>(totalSize - size));
    140 }
    141 
    142 // Fails on the WebKit XP (deps) bot, see http://crbug.com/327104
    143 #if OS(WIN)
    144 TEST_F(BitmapImageTest, DISABLED_destroyAllDecodedData)
    145 #else
    146 TEST_F(BitmapImageTest, destroyAllDecodedData)
    147 #endif
    148 {
    149     loadImage("/LayoutTests/fast/images/resources/animated-10color.gif");
    150     size_t totalSize = decodedSize();
    151     EXPECT_GT(totalSize, 0u);
    152     destroyDecodedData(true);
    153     EXPECT_EQ(-static_cast<int>(totalSize), m_imageObserver.m_lastDecodedSizeChangedDelta);
    154     EXPECT_EQ(0u, decodedSize());
    155 }
    156 
    157 TEST_F(BitmapImageTest, maybeAnimated)
    158 {
    159     loadImage("/LayoutTests/fast/images/resources/gif-loop-count.gif");
    160     for (size_t i = 0; i < frameCount(); ++i) {
    161         EXPECT_TRUE(m_image->maybeAnimated());
    162         advanceAnimation();
    163     }
    164     EXPECT_FALSE(m_image->maybeAnimated());
    165 }
    166 
    167 TEST_F(BitmapImageTest, isAllDataReceived)
    168 {
    169     RefPtr<SharedBuffer> imageData = readFile("/LayoutTests/fast/images/resources/green.jpg");
    170     ASSERT_TRUE(imageData.get());
    171 
    172     RefPtr<BitmapImage> image = BitmapImage::create();
    173     EXPECT_FALSE(image->isAllDataReceived());
    174 
    175     image->setData(imageData, false);
    176     EXPECT_FALSE(image->isAllDataReceived());
    177 
    178     image->setData(imageData, true);
    179     EXPECT_TRUE(image->isAllDataReceived());
    180 
    181     image->setData(SharedBuffer::create("data", sizeof("data")), false);
    182     EXPECT_FALSE(image->isAllDataReceived());
    183 
    184     image->setData(imageData, true);
    185     EXPECT_TRUE(image->isAllDataReceived());
    186 }
    187 
    188 #if USE(QCMSLIB)
    189 
    190 TEST_F(BitmapImageTest, jpegHasColorProfile)
    191 {
    192     loadImage("/LayoutTests/fast/images/resources/icc-v2-gbr.jpg");
    193     EXPECT_EQ(1u, decodedFramesCount());
    194     EXPECT_EQ(227700u, decodedSize());
    195     EXPECT_TRUE(m_image->hasColorProfile());
    196 
    197     resetDecoder();
    198     destroyDecodedData(true);
    199 
    200     loadImage("/LayoutTests/fast/images/resources/green.jpg");
    201     EXPECT_EQ(1u, decodedFramesCount());
    202     EXPECT_EQ(1024u, decodedSize());
    203     EXPECT_FALSE(m_image->hasColorProfile());
    204 }
    205 
    206 TEST_F(BitmapImageTest, pngHasColorProfile)
    207 {
    208     loadImage("/LayoutTests/fast/images/resources/palatted-color-png-gamma-one-color-profile.png");
    209     EXPECT_EQ(1u, decodedFramesCount());
    210     EXPECT_EQ(65536u, decodedSize());
    211     EXPECT_TRUE(m_image->hasColorProfile());
    212 
    213     resetDecoder();
    214     destroyDecodedData(true);
    215 
    216     loadImage("/LayoutTests/fast/images/resources/green.jpg");
    217     EXPECT_EQ(1u, decodedFramesCount());
    218     EXPECT_EQ(1024u, decodedSize());
    219     EXPECT_FALSE(m_image->hasColorProfile());
    220 }
    221 
    222 TEST_F(BitmapImageTest, webpHasColorProfile)
    223 {
    224     loadImage("/LayoutTests/fast/images/resources/webp-color-profile-lossy.webp");
    225     EXPECT_EQ(1u, decodedFramesCount());
    226     EXPECT_EQ(2560000u, decodedSize());
    227     EXPECT_TRUE(m_image->hasColorProfile());
    228 
    229     destroyDecodedData(true);
    230     resetDecoder();
    231 
    232     loadImage("/LayoutTests/fast/images/resources/test.webp");
    233     EXPECT_EQ(1u, decodedFramesCount());
    234     EXPECT_EQ(65536u, decodedSize());
    235     EXPECT_FALSE(m_image->hasColorProfile());
    236 }
    237 
    238 TEST_F(BitmapImageTest, icoHasWrongFrameDimensions)
    239 {
    240     loadImage("/LayoutTests/fast/images/resources/wrong-frame-dimensions.ico");
    241     // This call would cause crash without fix for 408026
    242     imageForDefaultFrame();
    243 }
    244 
    245 #endif // USE(QCMSLIB)
    246 
    247 } // namespace blink
    248