void CachedImage::clear()
{
destroyDecodedData();
clearImage();
m_pendingContainerSizeRequests.clear();
setEncodedSize(0);
}
Image::~Image()
{
// Null out the image observer so that we don't incorrectly communicate that decoded data is being destroyed during destruction.
m_imageObserver = 0;
destroyDecodedData();
stopAnimation();
destroyNativeData();
}
TEST_F(BitmapImageTest, destroyDecodedData) {
loadImage("/LayoutTests/fast/images/resources/animated-10color.gif");
size_t totalSize = decodedSize();
EXPECT_GT(totalSize, 0u);
destroyDecodedData();
EXPECT_EQ(-static_cast<int>(totalSize), lastDecodedSizeChange());
EXPECT_EQ(0u, decodedSize());
}
void BitmapImage::destroyDecodedDataIfNecessary(bool destroyAll)
{
// Animated images >5MB are considered large enough that we'll only hang on
// to one frame at a time.
static const unsigned cLargeAnimationCutoff = 5242880;
if (frameCount() * frameBytes(m_size) > cLargeAnimationCutoff)
destroyDecodedData(destroyAll);
}
TEST_F(BitmapImageTest, destroyAllDecodedData)
{
loadImage("/tests/fast/images/resources/animated-10color.gif");
size_t totalSize = decodedSize();
EXPECT_GT(totalSize, 0u);
destroyDecodedData(true);
EXPECT_EQ(-static_cast<int>(totalSize), m_imageObserver.m_lastDecodedSizeChangedDelta);
EXPECT_EQ(0u, decodedSize());
}
TEST_F(BitmapImageTest, pngHasColorProfile)
{
loadImage("/LayoutTests/fast/images/resources/palatted-color-png-gamma-one-color-profile.png");
EXPECT_EQ(1u, decodedFramesCount());
EXPECT_EQ(65536u, decodedSize());
EXPECT_TRUE(m_image->hasColorProfile());
destroyDecodedData(true);
}
TEST_F(BitmapImageTest, jpegHasColorProfile)
{
loadImage("/LayoutTests/fast/images/resources/icc-v2-gbr.jpg");
EXPECT_EQ(1u, decodedFramesCount());
EXPECT_EQ(227700u, decodedSize());
EXPECT_TRUE(m_image->hasColorProfile());
destroyDecodedData(true);
}
TEST_F(BitmapImageTest, webpHasColorProfile)
{
loadImage("/LayoutTests/fast/images/resources/webp-color-profile-lossy.webp");
EXPECT_EQ(1u, decodedFramesCount());
EXPECT_EQ(2560000u, decodedSize());
EXPECT_TRUE(m_image->hasColorProfile());
destroyDecodedData(true);
}
TEST_F(BitmapImageTest, destroyDecodedDataExceptCurrentFrame)
{
loadImage("/tests/fast/images/resources/animated-10color.gif");
size_t totalSize = decodedSize();
size_t frame = frameCount() / 2;
setCurrentFrame(frame);
size_t size = frameDecodedSize(frame);
destroyDecodedData(false);
EXPECT_LT(m_imageObserver.m_lastDecodedSizeChangedDelta, 0);
EXPECT_GE(m_imageObserver.m_lastDecodedSizeChangedDelta, -static_cast<int>(totalSize - size));
}
bool ImageFrameCache::destroyDecodedDataIfNecessary(bool destroyAll, size_t count)
{
unsigned decodedSize = 0;
for (auto& frame : m_frames)
decodedSize += frame.frameBytes();
if (decodedSize < LargeAnimationCutoff)
return false;
destroyDecodedData(destroyAll, count);
return true;
}
void BitmapImage::destroyDecodedDataIfNecessary(bool destroyAll)
{
// Animated images >5MB are considered large enough that we'll only hang on
// to one frame at a time.
static const unsigned cLargeAnimationCutoff = 5242880;
unsigned allFrameBytes = 0;
for (size_t i = 0; i < m_frames.size(); ++i)
allFrameBytes += m_frames[i].m_frameBytes;
if (allFrameBytes > cLargeAnimationCutoff)
destroyDecodedData(destroyAll);
}
void BitmapImage::resetAnimation()
{
stopAnimation();
m_currentFrame = 0;
m_repetitionsComplete = 0;
m_animationFinished = false;
int frameSize = m_size.width() * m_size.height() * 4;
// For extremely large animations, when the animation is reset, we just throw everything away.
if (frameCount() * frameSize > cLargeAnimationCutoff)
destroyDecodedData();
}
bool BitmapImage::dataChanged(bool allDataReceived)
{
destroyDecodedData(true);
// Feed all the data we've seen so far to the image decoder.
m_allDataReceived = allDataReceived;
m_source.setData(m_data.get(), allDataReceived);
// Image properties will not be available until the first frame of the file
// reaches kCGImageStatusIncomplete.
return isSizeAvailable();
}
void BitmapImage::notifyObserverAndTrimDecodedData()
{
// Notify our observer that the animation has advanced.
imageObserver()->animationAdvanced(this);
// For large animated images, go ahead and throw away frames as we go to
// save footprint.
int frameSize = m_size.width() * m_size.height() * 4;
if (frameCount() * frameSize > cLargeAnimationCutoff) {
// Destroy all of our frames and just redecode every time. We save the
// current frame since we'll need it in draw() anyway.
destroyDecodedData(false, true);
}
}
TEST_F(BitmapImageDeferredDecodingTest, correctDecodedDataSize)
{
// When deferred decoding is enabled, requesting any one frame shouldn't
// result in decoding any other frames.
loadImage("/LayoutTests/fast/images/resources/anim_none.gif", false);
frameAtIndex(1);
int frameSize = static_cast<int>(m_image->size().area() * sizeof(ImageFrame::PixelData));
EXPECT_EQ(frameSize, m_imageObserver->m_lastDecodedSizeChangedDelta);
frameAtIndex(0);
// Trying to destroy all data except an undecoded frame should go ahead and
// destroy all other frames.
setCurrentFrame(2);
destroyDecodedData(false);
EXPECT_EQ(-frameSize * 2, m_imageObserver->m_lastDecodedSizeChangedDelta);
}
void BitmapImage::notifyObserverAndTrimDecodedData()
{
// Notify our observer that the animation has advanced.
imageObserver()->animationAdvanced(this);
// For large animated images, go ahead and throw away frames as we go to save
// footprint.
int frameSize = m_size.width() * m_size.height() * 4;
if (frameCount() * frameSize > cLargeAnimationCutoff) {
// Destroy all of our frames and just redecode every time.
destroyDecodedData();
// Go ahead and decode the next frame.
frameAtIndex(m_currentFrame);
}
}
TEST_F(BitmapImageTest, correctDecodedDataSize)
{
// When requesting a frame of a multi-frame GIF causes another frame to be
// decoded as well, both frames' sizes should be reported by the source and
// thus included in the decoded size changed notification.
loadImage("/LayoutTests/fast/images/resources/anim_none.gif", false);
frameAtIndex(1);
int frameSize = static_cast<int>(m_image->size().area() * sizeof(ImageFrame::PixelData));
EXPECT_EQ(frameSize * 2, m_imageObserver->m_lastDecodedSizeChangedDelta);
// Trying to destroy all data except an undecoded frame should cause the
// decoder to seek backwards and preserve the most recent previous frame
// necessary to decode that undecoded frame, and destroy all other frames.
setCurrentFrame(2);
destroyDecodedData(false);
EXPECT_EQ(-frameSize, m_imageObserver->m_lastDecodedSizeChangedDelta);
}
void BitmapImage::destroyDecodedDataIfNecessary(bool destroyAll)
{
// Animated images >5MB are considered large enough that we'll only hang on
// to one frame at a time.
static const unsigned cLargeAnimationCutoff = 5242880;
// If we have decoded frames but there is no encoded data, we shouldn't destroy
// the decoded image since we won't be able to reconstruct it later.
if (!data() && m_frames.size())
return;
unsigned allFrameBytes = 0;
for (size_t i = 0; i < m_frames.size(); ++i)
allFrameBytes += m_frames[i].m_frameBytes;
if (allFrameBytes > cLargeAnimationCutoff)
destroyDecodedData(destroyAll);
}
bool Image::setNativeData(NativeBytePtr data, bool allDataReceived)
{
#if __APPLE__
// FIXME: Will go away when we make PDF a subclass.
if (m_isPDF) {
if (allDataReceived && !m_PDFDoc)
m_PDFDoc = new PDFDocumentImage(data);
return m_PDFDoc;
}
#endif
destroyDecodedData(true);
// Feed all the data we've seen so far to the image decoder.
m_source.setData(data, allDataReceived);
// Image properties will not be available until the first frame of the file
// reaches kCGImageStatusIncomplete.
return isSizeAvailable();
}
void Image::advanceAnimation(Timer<Image>* timer)
{
// Stop the animation.
stopAnimation();
// See if anyone is still paying attention to this animation. If not, we don't
// advance and will remain suspended at the current frame until the animation is resumed.
if (imageObserver()->shouldPauseAnimation(this))
return;
m_currentFrame++;
if (m_currentFrame >= frameCount()) {
m_repetitionsComplete += 1;
if (m_repetitionCount && m_repetitionsComplete >= m_repetitionCount) {
m_animationFinished = true;
m_currentFrame--;
return;
}
m_currentFrame = 0;
}
// Notify our observer that the animation has advanced.
imageObserver()->animationAdvanced(this);
// For large animated images, go ahead and throw away frames as we go to save
// footprint.
int frameSize = m_size.width() * m_size.height() * 4;
if (frameCount() * frameSize > cLargeAnimationCutoff) {
// Destroy all of our frames and just redecode every time.
destroyDecodedData();
// Go ahead and decode the next frame.
frameAtIndex(m_currentFrame);
}
// We do not advance the animation explicitly. We rely on a subsequent draw of the image
// to force a request for the next frame via startAnimation(). This allows images that move offscreen while
// scrolling to stop animating (thus saving memory from additional decoded frames and
// CPU time spent doing the decoding).
}
void BitmapImage::destroyDecodedDataIfNecessary(bool destroyAll)
{
// Animated images over a certain size are considered large enough that we'll only hang on
// to one frame at a time.
#if PLATFORM(IOS)
const unsigned largeAnimationCutoff = 2097152;
#else
const unsigned largeAnimationCutoff = 5242880;
#endif
// If we have decoded frames but there is no encoded data, we shouldn't destroy
// the decoded image since we won't be able to reconstruct it later.
if (!data() && m_frames.size())
return;
unsigned allFrameBytes = 0;
for (size_t i = 0; i < m_frames.size(); ++i)
allFrameBytes += m_frames[i].usedFrameBytes();
if (allFrameBytes > largeAnimationCutoff) {
LOG(Images, "BitmapImage %p destroyDecodedDataIfNecessary destroyingData: allFrameBytes=%u cutoff=%u", this, allFrameBytes, largeAnimationCutoff);
destroyDecodedData(destroyAll);
}
}
void CachedImage::decodedDataDeletionTimerFired(Timer<CachedImage>*)
{
ASSERT(!hasClients());
destroyDecodedData();
}
void CachedImage::clear()
{
destroyDecodedData();
m_image = 0;
setEncodedSize(0);
}
void CachedScript::decodedDataDeletionTimerFired(Timer<CachedScript>*)
{
destroyDecodedData();
}
void CachedResource::decodedDataDeletionTimerFired()
{
destroyDecodedData();
}