Index: third_party/WebKit/Source/platform/graphics/BitmapImage.h |
diff --git a/third_party/WebKit/Source/platform/graphics/BitmapImage.h b/third_party/WebKit/Source/platform/graphics/BitmapImage.h |
index 3c4611356daf956c8252a3a35144423d09339d36..c237257adedce8137d641d3cfb2792a54ee9e015 100644 |
--- a/third_party/WebKit/Source/platform/graphics/BitmapImage.h |
+++ b/third_party/WebKit/Source/platform/graphics/BitmapImage.h |
@@ -44,8 +44,9 @@ namespace blink { |
template <typename T> class Timer; |
class PLATFORM_EXPORT BitmapImage final : public Image { |
- friend class GeneratedImage; |
+ friend class BitmapImageTest; |
friend class CrossfadeGeneratedImage; |
+ friend class GeneratedImage; |
friend class GradientGeneratedImage; |
friend class GraphicsContext; |
public: |
@@ -69,11 +70,6 @@ public: |
bool isAllDataReceived() const { return m_allDataReceived; } |
bool hasColorProfile() const; |
- // It may look unusual that there's no start animation call as public API. |
- // This because we start and stop animating lazily. Animation starts when |
- // the image is rendered, and automatically pauses once all observers no |
- // longer want to render the image. |
- void stopAnimation() override; |
void resetAnimation() override; |
bool maybeAnimated() override; |
@@ -96,11 +92,6 @@ public: |
void advanceAnimationForTesting() override { internalAdvanceAnimation(false); } |
private: |
- friend class BitmapImageTest; |
- |
- void updateSize() const; |
- |
-private: |
enum RepetitionCountStatus { |
Unknown, // We haven't checked the source's repetition count. |
Uncertain, // We have a repetition count, but it might be wrong (some GIFs have a count after the image data, and will report "loop once" until all data has been decoded). |
@@ -122,27 +113,17 @@ private: |
bool frameHasAlphaAtIndex(size_t); |
ImageOrientation frameOrientationAtIndex(size_t); |
- // Decodes and caches a frame. Never accessed except internally. |
- void cacheFrame(size_t index); |
- |
- // Called before accessing m_frames[index]. Returns false on index out of bounds. |
- bool ensureFrameIsCached(size_t index); |
+ PassRefPtr<SkImage> decodeAndCacheFrame(size_t index); |
+ void updateSize() const; |
// Returns the total number of bytes allocated for all framebuffers, i.e. |
// the sum of m_source.frameBytesAtIndex(...) for all frames. |
size_t totalFrameBytes(); |
- // Called to invalidate cached data. When |destroyAll| is true, we wipe out |
- // the entire frame buffer cache and tell the image source to destroy |
- // everything; this is used when e.g. we want to free some room in the image |
- // cache. If |destroyAll| is false, we delete frames except the current |
- // frame; this is used while animating large images to keep memory footprint |
- // low; the decoder should preserve the current frame and may preserve some |
- // other frames to avoid redecoding the whole image on every frame. |
- void destroyDecodedData(bool destroyAll) override; |
- |
- // If the image is large enough, calls destroyDecodedData(). |
- void destroyDecodedDataIfNecessary(); |
+ // Called to wipe out the entire frame buffer cache and tell the image |
+ // source to destroy everything; this is used when e.g. we want to free |
+ // some room in the image cache. |
+ void destroyDecodedData() override; |
// Notifies observers that the memory footprint has changed. |
void notifyMemoryChanged(); |
@@ -151,9 +132,13 @@ private: |
bool isSizeAvailable(); |
// Animation. |
+ // We start and stop animating lazily. Animation starts when the image is |
+ // rendered, and automatically stops once no observer wants to render the |
+ // image. |
int repetitionCount(bool imageKnownToBeComplete); // |imageKnownToBeComplete| should be set if the caller knows the entire image has been decoded. |
bool shouldAnimate(); |
void startAnimation(CatchUpAnimation = CatchUp) override; |
+ void stopAnimation(); |
void advanceAnimation(Timer<BitmapImage>*); |
// Function that does the real work of advancing the animation. When |
@@ -170,6 +155,9 @@ private: |
size_t m_currentFrame; // The index of the current frame of animation. |
Vector<FrameData, 1> m_frames; // An array of the cached frames of the animation. We have to ref frames to pin them in the cache. |
+ RefPtr<SkImage> m_cachedFrame; // A cached copy of the most recently-accessed frame. |
+ size_t m_cachedFrameIndex; // Index of the frame that is cached. |
+ |
OwnPtr<Timer<BitmapImage>> m_frameTimer; |
int m_repetitionCount; // How many total animation loops we should do. This will be cAnimationNone if this image type is incapable of animation. |
RepetitionCountStatus m_repetitionCountStatus; |