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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CC_TILES_GPU_IMAGE_DECODE_CONTROLLER_H_
#define CC_TILES_GPU_IMAGE_DECODE_CONTROLLER_H_
#include <unordered_map>
#include <unordered_set>
#include "base/synchronization/lock.h"
#include "cc/base/cc_export.h"
#include "cc/tiles/image_decode_controller.h"
namespace cc {
class CC_EXPORT GpuImageDecodeController : public ImageDecodeController {
public:
GpuImageDecodeController();
~GpuImageDecodeController() override;
// ImageDecodeController overrides.
bool GetTaskForImageAndRef(const DrawImage& image,
uint64_t prepare_tiles_id,
scoped_refptr<ImageDecodeTask>* task) override;
void UnrefImage(const DrawImage& image) override;
DecodedDrawImage GetDecodedImageForDraw(const DrawImage& draw_image) override;
void DrawWithImageFinished(const DrawImage& image,
const DecodedDrawImage& decoded_image) override;
void ReduceCacheUsage() override;
void DecodeImage(const DrawImage& image);
void RemovePendingTaskForImage(const DrawImage& image);
private:
base::Lock lock_;
std::unordered_set<uint32_t> prerolled_images_;
std::unordered_map<uint32_t, scoped_refptr<ImageDecodeTask>>
pending_image_tasks_;
};
} // namespace cc
#endif // CC_TILES_GPU_IMAGE_DECODE_CONTROLLER_H_
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