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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 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 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 | |
| 13 * distribution. | |
| 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 | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 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 | |
| 33 #include "core/platform/image-decoders/ImageDecoder.h" | |
| 34 | |
| 35 #include "wtf/OwnPtr.h" | |
| 36 #include "wtf/PassOwnPtr.h" | |
| 37 #include "wtf/Vector.h" | |
| 38 #include <gtest/gtest.h> | |
| 39 | |
| 40 using namespace WebCore; | |
| 41 | |
| 42 class TestImageDecoder : public ImageDecoder { | |
| 43 public: | |
| 44 TestImageDecoder() | |
| 45 : ImageDecoder(ImageSource::AlphaNotPremultiplied, ImageSource::GammaAnd
ColorProfileApplied, noDecodedImageByteLimit) | |
| 46 { | |
| 47 } | |
| 48 | |
| 49 virtual String filenameExtension() const OVERRIDE { return ""; } | |
| 50 virtual ImageFrame* frameBufferAtIndex(size_t) OVERRIDE { return 0; } | |
| 51 | |
| 52 Vector<ImageFrame, 1>& frameBufferCache() | |
| 53 { | |
| 54 return m_frameBufferCache; | |
| 55 } | |
| 56 | |
| 57 void resetRequiredPreviousFrames(bool knownOpaque = false) | |
| 58 { | |
| 59 for (size_t i = 0; i < m_frameBufferCache.size(); ++i) | |
| 60 m_frameBufferCache[i].setRequiredPreviousFrameIndex(findRequiredPrev
iousFrame(i, knownOpaque)); | |
| 61 } | |
| 62 | |
| 63 void initFrames(size_t numFrames, unsigned width = 100, unsigned height = 10
0) | |
| 64 { | |
| 65 setSize(width, height); | |
| 66 m_frameBufferCache.resize(numFrames); | |
| 67 for (size_t i = 0; i < numFrames; ++i) | |
| 68 m_frameBufferCache[i].setOriginalFrameRect(IntRect(0, 0, width, heig
ht)); | |
| 69 } | |
| 70 }; | |
| 71 | |
| 72 TEST(ImageDecoderTest, sizeCalculationMayOverflow) | |
| 73 { | |
| 74 OwnPtr<TestImageDecoder> decoder(adoptPtr(new TestImageDecoder())); | |
| 75 EXPECT_FALSE(decoder->setSize(1 << 29, 1)); | |
| 76 EXPECT_FALSE(decoder->setSize(1, 1 << 29)); | |
| 77 EXPECT_FALSE(decoder->setSize(1 << 15, 1 << 15)); | |
| 78 EXPECT_TRUE(decoder->setSize(1 << 28, 1)); | |
| 79 EXPECT_TRUE(decoder->setSize(1, 1 << 28)); | |
| 80 EXPECT_TRUE(decoder->setSize(1 << 14, 1 << 14)); | |
| 81 } | |
| 82 | |
| 83 TEST(ImageDecoderTest, requiredPreviousFrameIndex) | |
| 84 { | |
| 85 OwnPtr<TestImageDecoder> decoder(adoptPtr(new TestImageDecoder())); | |
| 86 decoder->initFrames(6); | |
| 87 Vector<ImageFrame, 1>& frameBuffers = decoder->frameBufferCache(); | |
| 88 | |
| 89 frameBuffers[1].setDisposalMethod(ImageFrame::DisposeKeep); | |
| 90 frameBuffers[2].setDisposalMethod(ImageFrame::DisposeOverwritePrevious); | |
| 91 frameBuffers[3].setDisposalMethod(ImageFrame::DisposeOverwritePrevious); | |
| 92 frameBuffers[4].setDisposalMethod(ImageFrame::DisposeKeep); | |
| 93 | |
| 94 decoder->resetRequiredPreviousFrames(); | |
| 95 | |
| 96 // The first frame doesn't require any previous frame. | |
| 97 EXPECT_EQ(kNotFound, frameBuffers[0].requiredPreviousFrameIndex()); | |
| 98 // The previous DisposeNotSpecified frame is required. | |
| 99 EXPECT_EQ(0u, frameBuffers[1].requiredPreviousFrameIndex()); | |
| 100 // DisposeKeep is treated as DisposeNotSpecified. | |
| 101 EXPECT_EQ(1u, frameBuffers[2].requiredPreviousFrameIndex()); | |
| 102 // Previous DisposeOverwritePrevious frames are skipped. | |
| 103 EXPECT_EQ(1u, frameBuffers[3].requiredPreviousFrameIndex()); | |
| 104 EXPECT_EQ(1u, frameBuffers[4].requiredPreviousFrameIndex()); | |
| 105 EXPECT_EQ(4u, frameBuffers[5].requiredPreviousFrameIndex()); | |
| 106 } | |
| 107 | |
| 108 TEST(ImageDecoderTest, requiredPreviousFrameIndexDisposeOverwriteBgcolor) | |
| 109 { | |
| 110 OwnPtr<TestImageDecoder> decoder(adoptPtr(new TestImageDecoder())); | |
| 111 decoder->initFrames(3); | |
| 112 Vector<ImageFrame, 1>& frameBuffers = decoder->frameBufferCache(); | |
| 113 | |
| 114 // Fully covering DisposeOverwriteBgcolor previous frame resets the starting
state. | |
| 115 frameBuffers[1].setDisposalMethod(ImageFrame::DisposeOverwriteBgcolor); | |
| 116 decoder->resetRequiredPreviousFrames(); | |
| 117 EXPECT_EQ(kNotFound, frameBuffers[2].requiredPreviousFrameIndex()); | |
| 118 | |
| 119 // Partially covering DisposeOverwriteBgcolor previous frame is required by
this frame. | |
| 120 frameBuffers[1].setOriginalFrameRect(IntRect(50, 50, 50, 50)); | |
| 121 decoder->resetRequiredPreviousFrames(); | |
| 122 EXPECT_EQ(1u, frameBuffers[2].requiredPreviousFrameIndex()); | |
| 123 } | |
| 124 | |
| 125 TEST(ImageDecoderTest, requiredPreviousFrameIndexForFrame1) | |
| 126 { | |
| 127 OwnPtr<TestImageDecoder> decoder(adoptPtr(new TestImageDecoder())); | |
| 128 decoder->initFrames(2); | |
| 129 Vector<ImageFrame, 1>& frameBuffers = decoder->frameBufferCache(); | |
| 130 | |
| 131 decoder->resetRequiredPreviousFrames(); | |
| 132 EXPECT_EQ(0u, frameBuffers[1].requiredPreviousFrameIndex()); | |
| 133 | |
| 134 // The first frame with DisposeOverwritePrevious or DisposeOverwriteBgcolor | |
| 135 // resets the starting state. | |
| 136 frameBuffers[0].setDisposalMethod(ImageFrame::DisposeOverwritePrevious); | |
| 137 decoder->resetRequiredPreviousFrames(); | |
| 138 EXPECT_EQ(kNotFound, frameBuffers[1].requiredPreviousFrameIndex()); | |
| 139 frameBuffers[0].setDisposalMethod(ImageFrame::DisposeOverwriteBgcolor); | |
| 140 decoder->resetRequiredPreviousFrames(); | |
| 141 EXPECT_EQ(kNotFound, frameBuffers[1].requiredPreviousFrameIndex()); | |
| 142 | |
| 143 // ... even if it partially covers. | |
| 144 frameBuffers[0].setOriginalFrameRect(IntRect(50, 50, 50, 50)); | |
| 145 | |
| 146 frameBuffers[0].setDisposalMethod(ImageFrame::DisposeOverwritePrevious); | |
| 147 decoder->resetRequiredPreviousFrames(); | |
| 148 EXPECT_EQ(kNotFound, frameBuffers[1].requiredPreviousFrameIndex()); | |
| 149 frameBuffers[0].setDisposalMethod(ImageFrame::DisposeOverwriteBgcolor); | |
| 150 decoder->resetRequiredPreviousFrames(); | |
| 151 EXPECT_EQ(kNotFound, frameBuffers[1].requiredPreviousFrameIndex()); | |
| 152 } | |
| 153 | |
| 154 TEST(ImageDecoderTest, requiredPreviousFrameIndexBlendAtopBgcolor) | |
| 155 { | |
| 156 OwnPtr<TestImageDecoder> decoder(adoptPtr(new TestImageDecoder())); | |
| 157 decoder->initFrames(3); | |
| 158 Vector<ImageFrame, 1>& frameBuffers = decoder->frameBufferCache(); | |
| 159 | |
| 160 frameBuffers[1].setOriginalFrameRect(IntRect(25, 25, 50, 50)); | |
| 161 frameBuffers[2].setAlphaBlendSource(ImageFrame::BlendAtopBgcolor); | |
| 162 | |
| 163 // A full frame with 'blending method == BlendAtopBgcolor' doesn't depend on
any prior frames. | |
| 164 for (int disposeMethod = ImageFrame::DisposeNotSpecified; disposeMethod <= I
mageFrame::DisposeOverwritePrevious; ++disposeMethod) { | |
| 165 frameBuffers[1].setDisposalMethod(static_cast<ImageFrame::DisposalMethod
>(disposeMethod)); | |
| 166 decoder->resetRequiredPreviousFrames(); | |
| 167 EXPECT_EQ(kNotFound, frameBuffers[2].requiredPreviousFrameIndex()); | |
| 168 } | |
| 169 | |
| 170 // A non-full frame with 'blending method == BlendAtopBgcolor' does depend o
n a prior frame. | |
| 171 frameBuffers[2].setOriginalFrameRect(IntRect(50, 50, 50, 50)); | |
| 172 for (int disposeMethod = ImageFrame::DisposeNotSpecified; disposeMethod <= I
mageFrame::DisposeOverwritePrevious; ++disposeMethod) { | |
| 173 frameBuffers[1].setDisposalMethod(static_cast<ImageFrame::DisposalMethod
>(disposeMethod)); | |
| 174 decoder->resetRequiredPreviousFrames(); | |
| 175 EXPECT_NE(kNotFound, frameBuffers[2].requiredPreviousFrameIndex()); | |
| 176 } | |
| 177 } | |
| 178 | |
| 179 TEST(ImageDecoderTest, requiredPreviousFrameIndexKnownOpaque) | |
| 180 { | |
| 181 OwnPtr<TestImageDecoder> decoder(adoptPtr(new TestImageDecoder())); | |
| 182 decoder->initFrames(3); | |
| 183 Vector<ImageFrame, 1>& frameBuffers = decoder->frameBufferCache(); | |
| 184 | |
| 185 frameBuffers[1].setOriginalFrameRect(IntRect(25, 25, 50, 50)); | |
| 186 | |
| 187 // A full frame that is known to be opaque doesn't depend on any prior frame
s. | |
| 188 for (int disposeMethod = ImageFrame::DisposeNotSpecified; disposeMethod <= I
mageFrame::DisposeOverwritePrevious; ++disposeMethod) { | |
| 189 frameBuffers[1].setDisposalMethod(static_cast<ImageFrame::DisposalMethod
>(disposeMethod)); | |
| 190 decoder->resetRequiredPreviousFrames(true); | |
| 191 EXPECT_EQ(kNotFound, frameBuffers[2].requiredPreviousFrameIndex()); | |
| 192 } | |
| 193 | |
| 194 // A non-full frame that is known to be opaque does depend on a prior frame. | |
| 195 frameBuffers[2].setOriginalFrameRect(IntRect(50, 50, 50, 50)); | |
| 196 for (int disposeMethod = ImageFrame::DisposeNotSpecified; disposeMethod <= I
mageFrame::DisposeOverwritePrevious; ++disposeMethod) { | |
| 197 frameBuffers[1].setDisposalMethod(static_cast<ImageFrame::DisposalMethod
>(disposeMethod)); | |
| 198 decoder->resetRequiredPreviousFrames(true); | |
| 199 EXPECT_NE(kNotFound, frameBuffers[2].requiredPreviousFrameIndex()); | |
| 200 } | |
| 201 } | |
| 202 | |
| 203 TEST(ImageDecoderTest, clearCacheExceptFrameDoNothing) | |
| 204 { | |
| 205 OwnPtr<TestImageDecoder> decoder(adoptPtr(new TestImageDecoder())); | |
| 206 decoder->clearCacheExceptFrame(0); | |
| 207 | |
| 208 // This should not crash. | |
| 209 decoder->initFrames(20); | |
| 210 decoder->clearCacheExceptFrame(kNotFound); | |
| 211 } | |
| 212 | |
| 213 TEST(ImageDecoderTest, clearCacheExceptFrameAll) | |
| 214 { | |
| 215 const size_t numFrames = 10; | |
| 216 OwnPtr<TestImageDecoder> decoder(adoptPtr(new TestImageDecoder())); | |
| 217 decoder->initFrames(numFrames); | |
| 218 Vector<ImageFrame, 1>& frameBuffers = decoder->frameBufferCache(); | |
| 219 for (size_t i = 0; i < numFrames; ++i) | |
| 220 frameBuffers[i].setStatus(i % 2 ? ImageFrame::FramePartial : ImageFrame:
:FrameComplete); | |
| 221 | |
| 222 decoder->clearCacheExceptFrame(kNotFound); | |
| 223 | |
| 224 for (size_t i = 0; i < numFrames; ++i) { | |
| 225 SCOPED_TRACE(testing::Message() << i); | |
| 226 EXPECT_EQ(ImageFrame::FrameEmpty, frameBuffers[i].status()); | |
| 227 } | |
| 228 } | |
| 229 | |
| 230 TEST(ImageDecoderTest, clearCacheExceptFramePreverveClearExceptFrame) | |
| 231 { | |
| 232 const size_t numFrames = 10; | |
| 233 OwnPtr<TestImageDecoder> decoder(adoptPtr(new TestImageDecoder())); | |
| 234 decoder->initFrames(numFrames); | |
| 235 Vector<ImageFrame, 1>& frameBuffers = decoder->frameBufferCache(); | |
| 236 for (size_t i = 0; i < numFrames; ++i) | |
| 237 frameBuffers[i].setStatus(ImageFrame::FrameComplete); | |
| 238 | |
| 239 decoder->resetRequiredPreviousFrames(); | |
| 240 decoder->clearCacheExceptFrame(5); | |
| 241 for (size_t i = 0; i < numFrames; ++i) { | |
| 242 SCOPED_TRACE(testing::Message() << i); | |
| 243 if (i == 5) | |
| 244 EXPECT_EQ(ImageFrame::FrameComplete, frameBuffers[i].status()); | |
| 245 else | |
| 246 EXPECT_EQ(ImageFrame::FrameEmpty, frameBuffers[i].status()); | |
| 247 } | |
| 248 } | |
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Chromium Code Reviews
Issue 99103006:
Moving GraphicsContext and dependencies from core to platform. (Closed)
Base URL: svn://svn.chromium.org/blink/trunk