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/*
* Copyright (C) 2016 Apple 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 INC. ``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 INC. OR
* 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.
*/
#pragma once
#include "Color.h"
#include "DecodingOptions.h"
#include "ImageBackingStore.h"
#include "ImageOrientation.h"
#include "ImageTypes.h"
#include "IntSize.h"
#include "NativeImage.h"
#include <wtf/Seconds.h>
namespace WebCore {
class ScalableImageDecoderFrame {
public:
ScalableImageDecoderFrame();
ScalableImageDecoderFrame(const ScalableImageDecoderFrame& other) { operator=(other); }
~ScalableImageDecoderFrame();
ScalableImageDecoderFrame& operator=(const ScalableImageDecoderFrame& other);
void clear();
bool initialize(const ImageBackingStore&);
bool initialize(const IntSize&, bool premultiplyAlpha);
void setDecodingStatus(DecodingStatus);
DecodingStatus decodingStatus() const;
bool isInvalid() const { return m_decodingStatus == DecodingStatus::Invalid; }
bool isPartial() const { return m_decodingStatus == DecodingStatus::Partial; }
bool isComplete() const { return m_decodingStatus == DecodingStatus::Complete; }
IntSize size() const;
enum class DisposalMethod { Unspecified, DoNotDispose, RestoreToBackground, RestoreToPrevious };
void setDisposalMethod(DisposalMethod method) { m_disposalMethod = method; }
DisposalMethod disposalMethod() const { return m_disposalMethod; }
void setOrientation(ImageOrientation orientation) { m_orientation = orientation; };
ImageOrientation orientation() const { return m_orientation; }
void setDuration(const Seconds& duration) { m_duration = duration; }
Seconds duration() const { return m_duration; }
void setHasAlpha(bool hasAlpha) { m_hasAlpha = hasAlpha; }
bool hasAlpha() const { return !hasMetadata() || m_hasAlpha; }
bool hasMetadata() const { return !size().isEmpty(); }
ImageBackingStore* backingStore() const { return m_backingStore ? m_backingStore.get() : nullptr; }
bool hasBackingStore() const { return backingStore(); }
private:
DecodingStatus m_decodingStatus { DecodingStatus::Invalid };
std::unique_ptr<ImageBackingStore> m_backingStore;
DisposalMethod m_disposalMethod { DisposalMethod::Unspecified };
ImageOrientation m_orientation { ImageOrientation::None };
Seconds m_duration;
bool m_hasAlpha { true };
};
}
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