From 2be87bb707e2c6d75f668c4aff6697b85fbf5b15 Mon Sep 17 00:00:00 2001 From: John Reck Date: Wed, 5 Apr 2023 17:33:00 -0400 Subject: [PATCH] Follow Firefox & Chrome GIF behavior If a GIF animation has a duration <= 10ms then bump it to 100ms. This isn't correct behavior, but it's one that browsers have been doing for so long that gifs are now authored to rely on this behavior Fixes: 192511662 Test: app in bug Change-Id: Ia07f12aa15595193ed9e56910929dc6da9754128 --- libs/hwui/hwui/AnimatedImageDrawable.cpp | 33 ++++++++++++++++++------ libs/hwui/hwui/AnimatedImageDrawable.h | 17 +++++++----- libs/hwui/jni/AnimatedImageDrawable.cpp | 6 ++--- 3 files changed, 39 insertions(+), 17 deletions(-) diff --git a/libs/hwui/hwui/AnimatedImageDrawable.cpp b/libs/hwui/hwui/AnimatedImageDrawable.cpp index d08bc5c583c27..8049dc946c9ee 100644 --- a/libs/hwui/hwui/AnimatedImageDrawable.cpp +++ b/libs/hwui/hwui/AnimatedImageDrawable.cpp @@ -29,9 +29,10 @@ namespace android { -AnimatedImageDrawable::AnimatedImageDrawable(sk_sp animatedImage, size_t bytesUsed) - : mSkAnimatedImage(std::move(animatedImage)), mBytesUsed(bytesUsed) { - mTimeToShowNextSnapshot = ms2ns(mSkAnimatedImage->currentFrameDuration()); +AnimatedImageDrawable::AnimatedImageDrawable(sk_sp animatedImage, size_t bytesUsed, + SkEncodedImageFormat format) + : mSkAnimatedImage(std::move(animatedImage)), mBytesUsed(bytesUsed), mFormat(format) { + mTimeToShowNextSnapshot = ms2ns(currentFrameDuration()); setStagingBounds(mSkAnimatedImage->getBounds()); } @@ -92,7 +93,7 @@ bool AnimatedImageDrawable::isDirty(nsecs_t* outDelay) { // directly from mSkAnimatedImage. lock.unlock(); std::unique_lock imageLock{mImageLock}; - *outDelay = ms2ns(mSkAnimatedImage->currentFrameDuration()); + *outDelay = ms2ns(currentFrameDuration()); return true; } else { // The next snapshot has not yet been decoded, but we've already passed @@ -109,7 +110,7 @@ AnimatedImageDrawable::Snapshot AnimatedImageDrawable::decodeNextFrame() { Snapshot snap; { std::unique_lock lock{mImageLock}; - snap.mDurationMS = mSkAnimatedImage->decodeNextFrame(); + snap.mDurationMS = adjustFrameDuration(mSkAnimatedImage->decodeNextFrame()); snap.mPic.reset(mSkAnimatedImage->newPictureSnapshot()); } @@ -123,7 +124,7 @@ AnimatedImageDrawable::Snapshot AnimatedImageDrawable::reset() { std::unique_lock lock{mImageLock}; mSkAnimatedImage->reset(); snap.mPic.reset(mSkAnimatedImage->newPictureSnapshot()); - snap.mDurationMS = mSkAnimatedImage->currentFrameDuration(); + snap.mDurationMS = currentFrameDuration(); } return snap; @@ -274,7 +275,7 @@ int AnimatedImageDrawable::drawStaging(SkCanvas* canvas) { { std::unique_lock lock{mImageLock}; mSkAnimatedImage->reset(); - durationMS = mSkAnimatedImage->currentFrameDuration(); + durationMS = currentFrameDuration(); } { std::unique_lock lock{mSwapLock}; @@ -306,7 +307,7 @@ int AnimatedImageDrawable::drawStaging(SkCanvas* canvas) { { std::unique_lock lock{mImageLock}; if (update) { - durationMS = mSkAnimatedImage->decodeNextFrame(); + durationMS = adjustFrameDuration(mSkAnimatedImage->decodeNextFrame()); } canvas->drawDrawable(mSkAnimatedImage.get()); @@ -336,4 +337,20 @@ SkRect AnimatedImageDrawable::onGetBounds() { return SkRectMakeLargest(); } +int AnimatedImageDrawable::adjustFrameDuration(int durationMs) { + if (durationMs == SkAnimatedImage::kFinished) { + return SkAnimatedImage::kFinished; + } + + if (mFormat == SkEncodedImageFormat::kGIF) { + // Match Chrome & Firefox behavior that gifs with a duration <= 10ms is bumped to 100ms + return durationMs <= 10 ? 100 : durationMs; + } + return durationMs; +} + +int AnimatedImageDrawable::currentFrameDuration() { + return adjustFrameDuration(mSkAnimatedImage->currentFrameDuration()); +} + } // namespace android diff --git a/libs/hwui/hwui/AnimatedImageDrawable.h b/libs/hwui/hwui/AnimatedImageDrawable.h index 8ca3c7e125f13..1e965abc82b56 100644 --- a/libs/hwui/hwui/AnimatedImageDrawable.h +++ b/libs/hwui/hwui/AnimatedImageDrawable.h @@ -16,16 +16,16 @@ #pragma once -#include -#include -#include -#include - #include #include #include #include +#include #include +#include +#include +#include +#include #include #include @@ -48,7 +48,8 @@ class AnimatedImageDrawable : public SkDrawable { public: // bytesUsed includes the approximate sizes of the SkAnimatedImage and the SkPictures in the // Snapshots. - AnimatedImageDrawable(sk_sp animatedImage, size_t bytesUsed); + AnimatedImageDrawable(sk_sp animatedImage, size_t bytesUsed, + SkEncodedImageFormat format); /** * This updates the internal time and returns true if the image needs @@ -115,6 +116,7 @@ protected: private: sk_sp mSkAnimatedImage; const size_t mBytesUsed; + const SkEncodedImageFormat mFormat; bool mRunning = false; bool mStarting = false; @@ -157,6 +159,9 @@ private: Properties mProperties; std::unique_ptr mEndListener; + + int adjustFrameDuration(int); + int currentFrameDuration(); }; } // namespace android diff --git a/libs/hwui/jni/AnimatedImageDrawable.cpp b/libs/hwui/jni/AnimatedImageDrawable.cpp index 373e893b9a25e..a7f5aa83e6240 100644 --- a/libs/hwui/jni/AnimatedImageDrawable.cpp +++ b/libs/hwui/jni/AnimatedImageDrawable.cpp @@ -97,7 +97,7 @@ static jlong AnimatedImageDrawable_nCreate(JNIEnv* env, jobject /*clazz*/, bytesUsed += picture->approximateBytesUsed(); } - + SkEncodedImageFormat format = imageDecoder->mCodec->getEncodedFormat(); sk_sp animatedImg = SkAnimatedImage::Make(std::move(imageDecoder->mCodec), info, subset, std::move(picture)); @@ -108,8 +108,8 @@ static jlong AnimatedImageDrawable_nCreate(JNIEnv* env, jobject /*clazz*/, bytesUsed += sizeof(animatedImg.get()); - sk_sp drawable(new AnimatedImageDrawable(std::move(animatedImg), - bytesUsed)); + sk_sp drawable( + new AnimatedImageDrawable(std::move(animatedImg), bytesUsed, format)); return reinterpret_cast(drawable.release()); }