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/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_TEST_MOCK_IMAGE_DECODER_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_TEST_MOCK_IMAGE_DECODER_H_
#include <memory>
#include <utility>
#include "base/memory/ptr_util.h"
#include "base/memory/raw_ptr.h"
#include "third_party/blink/renderer/platform/graphics/image_frame_generator.h"
#include "third_party/blink/renderer/platform/image-decoders/image_decoder.h"
#include "third_party/blink/renderer/platform/wtf/forward.h"
#include "third_party/skia/include/core/SkColorSpace.h"
namespace blink {
class MockImageDecoderClient {
public:
MockImageDecoderClient() : first_frame_forced_to_be_empty_(false) {}
virtual void DecoderBeingDestroyed() = 0;
virtual void DecodeRequested() = 0;
virtual ImageFrame::Status GetStatus(wtf_size_t index) = 0;
virtual wtf_size_t FrameCount() = 0;
virtual int RepetitionCount() const = 0;
virtual base::TimeDelta FrameDuration() const = 0;
virtual void ClearCacheExceptFrameRequested(wtf_size_t) {}
virtual void MemoryAllocatorSet() {}
// Clients can control the behavior of MockImageDecoder::decodedSize() by
// overriding this method. The default implementation causes
// MockImageDecoder::decodedSize() to return the same thing as
// MockImageDecoder::size(). See the precise implementation of
// MockImageDecoder::decodedSize() below.
virtual gfx::Size DecodedSize() const { return gfx::Size(); }
void ForceFirstFrameToBeEmpty() { first_frame_forced_to_be_empty_ = true; }
bool FirstFrameForcedToBeEmpty() const {
return first_frame_forced_to_be_empty_;
}
private:
bool first_frame_forced_to_be_empty_;
};
class MockImageDecoder : public ImageDecoder {
public:
MockImageDecoder(MockImageDecoderClient* client)
: ImageDecoder(kAlphaPremultiplied,
ImageDecoder::kDefaultBitDepth,
ColorBehavior::kTransformToSRGB,
cc::AuxImage::kDefault,
ImageDecoder::kNoDecodedImageByteLimit),
client_(client) {}
~MockImageDecoder() override { client_->DecoderBeingDestroyed(); }
gfx::Size DecodedSize() const override {
return client_->DecodedSize().IsEmpty() ? Size() : client_->DecodedSize();
}
String FilenameExtension() const override { return "mock"; }
const AtomicString& MimeType() const override;
int RepetitionCount() const override { return client_->RepetitionCount(); }
bool FrameIsReceivedAtIndex(wtf_size_t index) const override {
return client_->GetStatus(index) == ImageFrame::kFrameComplete;
}
base::TimeDelta FrameDurationAtIndex(wtf_size_t) const override {
return client_->FrameDuration();
}
wtf_size_t ClearCacheExceptFrame(wtf_size_t clear_except_frame) override {
client_->ClearCacheExceptFrameRequested(clear_except_frame);
return 0;
}
wtf_size_t FrameBytesAtIndex(wtf_size_t index) const override {
if (client_->FirstFrameForcedToBeEmpty() && index == 0)
return 0;
return ImageDecoder::FrameBytesAtIndex(index);
}
void SetMemoryAllocator(SkBitmap::Allocator* allocator) override {
if (frame_buffer_cache_.empty()) {
// Ensure that InitializeNewFrame is called, after parsing if
// necessary.
if (!FrameCount())
return;
}
frame_buffer_cache_[0].SetMemoryAllocator(allocator);
client_->MemoryAllocatorSet();
}
private:
void DecodeSize() override {}
wtf_size_t DecodeFrameCount() override { return client_->FrameCount(); }
void Decode(wtf_size_t index) override {
client_->DecodeRequested();
frame_buffer_cache_[index].ClearPixelData();
InitializeNewFrame(index);
frame_buffer_cache_[index].SetStatus(client_->GetStatus(index));
}
void InitializeNewFrame(wtf_size_t index) override {
if (frame_buffer_cache_[index].AllocatePixelData(
Size().width(), Size().height(), ColorSpaceForSkImages()))
frame_buffer_cache_[index].ZeroFillPixelData();
frame_buffer_cache_[index].SetHasAlpha(false);
}
raw_ptr<MockImageDecoderClient> client_;
};
class MockImageDecoderFactory : public ImageDecoderFactory {
public:
static std::unique_ptr<MockImageDecoderFactory> Create(
MockImageDecoderClient* client,
const SkISize& decoded_size) {
return base::WrapUnique(new MockImageDecoderFactory(
client, gfx::Size(decoded_size.width(), decoded_size.height())));
}
static std::unique_ptr<MockImageDecoderFactory> Create(
MockImageDecoderClient* client,
const gfx::Size& decoded_size) {
return base::WrapUnique(new MockImageDecoderFactory(client, decoded_size));
}
std::unique_ptr<ImageDecoder> Create() override {
auto decoder = std::make_unique<MockImageDecoder>(client_);
decoder->SetSize(static_cast<unsigned>(decoded_size_.width()),
static_cast<unsigned>(decoded_size_.height()));
return std::move(decoder);
}
private:
MockImageDecoderFactory(MockImageDecoderClient* client,
const gfx::Size& decoded_size)
: client_(client), decoded_size_(decoded_size) {}
raw_ptr<MockImageDecoderClient> client_;
gfx::Size decoded_size_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_TEST_MOCK_IMAGE_DECODER_H_
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