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83 lines
2.2 KiB
C++
83 lines
2.2 KiB
C++
// Copyright 2017 The Chromium 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/painting/frame_info.h"
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#include "lib/tonic/dart_wrappable.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 blink {
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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 fxl::RefCountedThreadSafe<Codec>,
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public tonic::DartWrappable {
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DEFINE_WRAPPERTYPEINFO();
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public:
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virtual int frameCount() = 0;
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virtual int repetitionCount() = 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() { return frameInfos_.size(); }
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int repetitionCount() { return repetitionCount_; }
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Dart_Handle getNextFrame(Dart_Handle args);
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private:
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MultiFrameCodec(std::unique_ptr<SkCodec> codec);
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~MultiFrameCodec() {}
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sk_sp<SkImage> GetNextFrameImage();
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void GetNextFrameAndInvokeCallback(
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std::unique_ptr<DartPersistentValue> callback,
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size_t trace_id);
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const std::unique_ptr<SkCodec> codec_;
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int repetitionCount_;
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int nextFrameIndex_;
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std::vector<SkCodec::FrameInfo> frameInfos_;
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std::vector<SkBitmap> frameBitmaps_;
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FRIEND_MAKE_REF_COUNTED(MultiFrameCodec);
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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() { return 1; }
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int repetitionCount() { return 0; }
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Dart_Handle getNextFrame(Dart_Handle args);
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private:
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SingleFrameCodec(fxl::RefPtr<FrameInfo> frame) : frame_(std::move(frame)) {}
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~SingleFrameCodec() {}
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fxl::RefPtr<FrameInfo> frame_;
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FRIEND_MAKE_REF_COUNTED(SingleFrameCodec);
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FRIEND_REF_COUNTED_THREAD_SAFE(SingleFrameCodec);
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};
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} // namespace blink
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#endif // FLUTTER_LIB_UI_PAINTING_CODEC_H_
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