ImageDecoderDirect2D.h [plain text]
#pragma once
#include "COMPtr.h"
#include "ImageSource.h"
#include "IntSize.h"
#include <wtf/Optional.h>
interface ID2D1RenderTarget;
interface IWICBitmapDecoder;
interface IWICImagingFactory;
namespace WebCore {
class ImageDecoder {
WTF_MAKE_FAST_ALLOCATED;
public:
ImageDecoder();
static std::unique_ptr<ImageDecoder> create(const SharedBuffer&, AlphaOption, GammaAndColorProfileOption)
{
return std::make_unique<ImageDecoder>();
}
static size_t bytesDecodedToDetermineProperties();
String filenameExtension() const;
bool isSizeAvailable() const;
IntSize size() const;
size_t frameCount() const;
RepetitionCount repetitionCount() const;
std::optional<IntPoint> hotSpot() const;
IntSize frameSizeAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default) const;
bool frameIsCompleteAtIndex(size_t) const;
ImageOrientation frameOrientationAtIndex(size_t) const;
float frameDurationAtIndex(size_t) const;
bool frameHasAlphaAtIndex(size_t) const;
bool frameAllowSubsamplingAtIndex(size_t) const;
unsigned frameBytesAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default) const;
NativeImagePtr createFrameImageAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default, DecodingMode = DecodingMode::OnDemand) const;
void setData(SharedBuffer&, bool allDataReceived);
bool isAllDataReceived() const { return m_isAllDataReceived; }
void clearFrameBufferCache(size_t) { }
void setTargetContext(ID2D1RenderTarget*);
static IWICImagingFactory* systemImagingFactory();
protected:
bool m_isAllDataReceived { false };
mutable IntSize m_size;
COMPtr<IWICBitmapDecoder> m_nativeDecoder;
COMPtr<ID2D1RenderTarget> m_renderTarget;
};
}