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https://github.com/flutter/flutter.git
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14c82d9969
Remove the extra `decodedCacheRatioCap` parameter, and the `_frameBitmaps` member from `Codec`. This means that small looped images will consume more CPU but prevents us from hitting OOM exceptions based on trying to render multiple larger images. Also switch to fDisposalMethod for caching frames. Previously we looped over every single SkCodec::FrameInfo, tracked its `fRequiredFrame`, and then saved any frames matching those indeces. Doing this instead avoids that initialization loop and extra data structure.
90 lines
2.5 KiB
C++
90 lines
2.5 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef FLUTTER_LIB_UI_PAINTING_CODEC_H_
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#define FLUTTER_LIB_UI_PAINTING_CODEC_H_
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#include "flutter/lib/ui/dart_wrapper.h"
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#include "flutter/lib/ui/painting/frame_info.h"
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#include "third_party/skia/include/codec/SkCodec.h"
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#include "third_party/skia/include/core/SkBitmap.h"
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#include "third_party/skia/include/core/SkImage.h"
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using tonic::DartPersistentValue;
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namespace tonic {
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class DartLibraryNatives;
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} // namespace tonic
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namespace flutter {
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// A handle to an SkCodec object.
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//
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// Doesn't mirror SkCodec's API but provides a simple sequential access API.
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class Codec : public RefCountedDartWrappable<Codec> {
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DEFINE_WRAPPERTYPEINFO();
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public:
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virtual int frameCount() const = 0;
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virtual int repetitionCount() const = 0;
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virtual Dart_Handle getNextFrame(Dart_Handle callback_handle) = 0;
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void dispose();
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static void RegisterNatives(tonic::DartLibraryNatives* natives);
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};
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class MultiFrameCodec : public Codec {
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public:
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int frameCount() const override;
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int repetitionCount() const override;
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Dart_Handle getNextFrame(Dart_Handle args) override;
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private:
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MultiFrameCodec(std::unique_ptr<SkCodec> codec);
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~MultiFrameCodec() override;
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sk_sp<SkImage> GetNextFrameImage(fml::WeakPtr<GrContext> resourceContext);
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void GetNextFrameAndInvokeCallback(
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std::unique_ptr<DartPersistentValue> callback,
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fml::RefPtr<fml::TaskRunner> ui_task_runner,
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fml::WeakPtr<GrContext> resourceContext,
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fml::RefPtr<flutter::SkiaUnrefQueue> unref_queue,
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size_t trace_id);
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const std::unique_ptr<SkCodec> codec_;
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const int frameCount_;
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const int repetitionCount_;
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int nextFrameIndex_;
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// The last decoded frame that's required to decode any subsequent frames.
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std::unique_ptr<SkBitmap> lastRequiredFrame_;
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// The index of the last decoded required frame.
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int lastRequiredFrameIndex_ = -1;
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FML_FRIEND_MAKE_REF_COUNTED(MultiFrameCodec);
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FML_FRIEND_REF_COUNTED_THREAD_SAFE(MultiFrameCodec);
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};
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class SingleFrameCodec : public Codec {
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public:
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int frameCount() const override;
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int repetitionCount() const override;
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Dart_Handle getNextFrame(Dart_Handle args) override;
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private:
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SingleFrameCodec(fml::RefPtr<FrameInfo> frame);
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~SingleFrameCodec() override;
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fml::RefPtr<FrameInfo> frame_;
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FML_FRIEND_MAKE_REF_COUNTED(SingleFrameCodec);
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FML_FRIEND_REF_COUNTED_THREAD_SAFE(SingleFrameCodec);
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};
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} // namespace flutter
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#endif // FLUTTER_LIB_UI_PAINTING_CODEC_H_
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