ScalableImageDecoderFrame.h [plain text]
#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 { DefaultImageOrientation };
Seconds m_duration;
bool m_hasAlpha { true };
};
}