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/*
* Copyright (C) 2024-2025 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 "DestinationColorSpace.h"
#include "ImageOrientation.h"
#include "ImageTypes.h"
#include "IntPoint.h"
#include <wtf/CheckedRef.h>
#include <wtf/OptionSet.h>
namespace WebCore {
class BitmapImageSource;
class GraphicsContext;
class ImageDecoder;
class ImageFrame;
class NativeImage;
class BitmapImageDescriptor {
public:
BitmapImageDescriptor(BitmapImageSource&);
void clear() { m_cachedFlags = { }; }
EncodedDataStatus encodedDataStatus() const;
bool isSizeAvailable() const { return encodedDataStatus() >= EncodedDataStatus::SizeAvailable; }
IntSize size(ImageOrientation = ImageOrientation::Orientation::FromImage) const;
IntSize sourceSize(ImageOrientation = ImageOrientation::Orientation::FromImage) const;
std::optional<IntSize> densityCorrectedSize() const;
ImageOrientation orientation() const;
unsigned primaryFrameIndex() const;
unsigned frameCount() const;
RepetitionCount repetitionCount() const;
DestinationColorSpace colorSpace() const;
std::optional<Color> singlePixelSolidColor() const;
bool hasHDRGainMap() const;
bool hasHDRColorSpace() const;
String uti() const;
String filenameExtension() const;
String accessibilityDescription() const;
std::optional<IntPoint> hotSpot() const;
SubsamplingLevel maximumSubsamplingLevel() const;
SubsamplingLevel subsamplingLevelForScaleFactor(GraphicsContext&, const FloatSize& scaleFactor, AllowImageSubsampling) const;
#if ENABLE(QUICKLOOK_FULLSCREEN)
bool shouldUseQuickLookForFullscreen() const;
#endif
#if ENABLE(SPATIAL_IMAGE_DETECTION)
bool isSpatial() const;
#endif
void dump(TextStream&) const;
private:
enum class CachedFlag : uint16_t {
EncodedDataStatus = 1 << 0,
Size = 1 << 1,
DensityCorrectedSize = 1 << 2,
Orientation = 1 << 3,
PrimaryFrameIndex = 1 << 4,
FrameCount = 1 << 5,
RepetitionCount = 1 << 6,
ColorSpace = 1 << 7,
SinglePixelSolidColor = 1 << 8,
HasHDRGainMap = 1 << 9,
UTI = 1 << 10,
FilenameExtension = 1 << 11,
AccessibilityDescription = 1 << 12,
HotSpot = 1 << 13,
MaximumSubsamplingLevel = 1 << 14,
};
template<typename MetadataType>
MetadataType imageMetadata(MetadataType& cachedValue, const MetadataType& defaultValue, CachedFlag, MetadataType (ImageDecoder::*functor)() const) const;
template<typename MetadataType>
MetadataType primaryImageFrameMetadata(MetadataType& cachedValue, CachedFlag, MetadataType (ImageFrame::*functor)() const, const std::optional<SubsamplingLevel>& = std::nullopt) const;
template<typename MetadataType>
MetadataType primaryNativeImageMetadata(MetadataType& cachedValue, const MetadataType& defaultValue, CachedFlag, MetadataType (NativeImage::*functor)() const) const;
mutable OptionSet<CachedFlag> m_cachedFlags;
mutable EncodedDataStatus m_encodedDataStatus { EncodedDataStatus::Unknown };
mutable IntSize m_size;
mutable std::optional<IntSize> m_densityCorrectedSize;
mutable ImageOrientation m_orientation;
mutable size_t m_primaryFrameIndex { 0 };
mutable size_t m_frameCount { 0 };
mutable RepetitionCount m_repetitionCount { RepetitionCountNone };
mutable DestinationColorSpace m_colorSpace { DestinationColorSpace::SRGB() };
mutable std::optional<Color> m_singlePixelSolidColor;
mutable bool m_hasHDRGainMap { false };
mutable String m_uti;
mutable String m_filenameExtension;
mutable String m_accessibilityDescription;
mutable std::optional<IntPoint> m_hotSpot;
mutable SubsamplingLevel m_maximumSubsamplingLevel { SubsamplingLevel::Default };
const CheckedRef<BitmapImageSource> m_source;
};
} // namespace WebCore
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