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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_IMAGE_DECODER_WRAPPER_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_IMAGE_DECODER_WRAPPER_H_
#include "cc/paint/paint_image.h"
#include "third_party/blink/renderer/platform/image-decoders/image_decoder.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
#include "third_party/skia/include/core/SkSize.h"
namespace blink {
class ImageDecoderFactory;
class ImageFrameGenerator;
class SegmentReader;
class ImageDecoderWrapper {
STACK_ALLOCATED();
public:
ImageDecoderWrapper(ImageFrameGenerator* generator,
SegmentReader* data,
const SkPixmap& pixmap,
ColorBehavior decoder_color_behavior,
cc::AuxImage aux_image,
wtf_size_t index,
bool all_data_received,
cc::PaintImage::GeneratorClientId client_id);
~ImageDecoderWrapper();
// Returns true if the decode succeeded.
bool Decode(ImageDecoderFactory* factory,
bool* has_alpha);
// Indicates that the decode failed due to a corrupt image.
bool decode_failed() const { return decode_failed_; }
private:
bool ShouldDecodeToExternalMemory(wtf_size_t frame_count,
bool has_cached_decoder) const;
bool ShouldRemoveDecoder(bool frame_was_completely_decoded,
bool decoded_to_external_memory) const;
void PurgeAllFramesIfNecessary(ImageDecoder* decoder,
bool frame_was_completely_decoded,
wtf_size_t frame_count) const;
std::unique_ptr<ImageDecoder> CreateDecoderWithData(
ImageDecoderFactory* factory) const;
const ImageFrameGenerator* const generator_;
SegmentReader* data_;
SkPixmap pixmap_;
const ColorBehavior decoder_color_behavior_;
const cc::AuxImage aux_image_;
const wtf_size_t frame_index_;
const bool all_data_received_;
const cc::PaintImage::GeneratorClientId client_id_;
bool decode_failed_ = false;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_IMAGE_DECODER_WRAPPER_H_
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