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/*
* Copyright (C) 2016-2025 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 "DecodingOptions.h"
#include "ImageOrientation.h"
#include "ImageTypes.h"
#include "IntSize.h"
#include "NativeImage.h"
#include <wtf/Seconds.h>
namespace WebCore {
class ImageFrame {
friend class BitmapImageSource;
friend class ImageDecoder;
friend class ImageDecoderCG;
public:
enum class Caching { Metadata, MetadataAndImage };
ImageFrame();
ImageFrame(Ref<NativeImage>&&);
ImageFrame(const ImageFrame& other) { operator=(other); }
~ImageFrame();
static const ImageFrame& defaultFrame();
ImageFrame& operator=(const ImageFrame& other);
unsigned clearSourceImage(ShouldDecodeToHDR);
unsigned clearImage(std::optional<ShouldDecodeToHDR> = std::nullopt);
unsigned clear();
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; }
void setSize(const IntSize& size) { m_size = size; }
IntSize size() const { return m_size; }
unsigned sizeInBytes() const { return (size().area() * sizeof(uint32_t)).value(); }
void setDensityCorrectedSize(const IntSize& size) { m_densityCorrectedSize = size; }
std::optional<IntSize> densityCorrectedSize() const { return m_densityCorrectedSize; }
SubsamplingLevel subsamplingLevel() const { return m_subsamplingLevel; }
RefPtr<NativeImage> nativeImage(std::optional<ShouldDecodeToHDR> shouldDecodeToHDR) const { return source(shouldDecodeToHDR).nativeImage; }
DecodingOptions decodingOptions(std::optional<ShouldDecodeToHDR> shouldDecodeToHDR) const { return source(shouldDecodeToHDR).decodingOptions; }
Headroom headroom(std::optional<ShouldDecodeToHDR> shouldDecodeToHDR) const { return source(shouldDecodeToHDR).headroom; }
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 hasNativeImage(ShouldDecodeToHDR shouldDecodeToHDR) const { return source(shouldDecodeToHDR).hasNativeImage(); }
bool hasNativeImage(ShouldDecodeToHDR, SubsamplingLevel) const;
bool hasFullSizeNativeImage(ShouldDecodeToHDR, SubsamplingLevel) const;
bool hasDecodedNativeImageCompatibleWithOptions(const DecodingOptions&, SubsamplingLevel) const;
bool hasMetadata() const { return !size().isEmpty(); }
private:
struct Source {
RefPtr<NativeImage> nativeImage;
DecodingOptions decodingOptions { DecodingMode::Auto };
Headroom headroom { Headroom::None };
bool hasNativeImage() const { return nativeImage; }
bool hasFullSizeNativeImage() const
{
return hasNativeImage() && decodingOptions.hasFullSize();
}
bool hasDecodedNativeImageCompatibleWithOptions(const DecodingOptions& decodingOptions) const
{
return hasNativeImage() && this->decodingOptions.isCompatibleWith(decodingOptions);
}
void clear()
{
if (!nativeImage)
return;
nativeImage->clearSubimages();
nativeImage = nullptr;
decodingOptions = DecodingOptions();
headroom = Headroom::None;
}
};
ShouldDecodeToHDR shouldDecodeToHDRIfExists() const
{
return hasNativeImage(ShouldDecodeToHDR::Yes) ? ShouldDecodeToHDR::Yes : ShouldDecodeToHDR::No;
}
Source& source(std::optional<ShouldDecodeToHDR> shouldDecodeToHDR)
{
if (shouldDecodeToHDR)
return *shouldDecodeToHDR == ShouldDecodeToHDR::No ? m_source : m_hdrSource;
return shouldDecodeToHDRIfExists() == ShouldDecodeToHDR::No ? m_source : m_hdrSource;
}
const Source& source(std::optional<ShouldDecodeToHDR> shouldDecodeToHDR) const
{
if (shouldDecodeToHDR)
return *shouldDecodeToHDR == ShouldDecodeToHDR::No ? m_source : m_hdrSource;
return shouldDecodeToHDRIfExists() == ShouldDecodeToHDR::No ? m_source : m_hdrSource;
}
DecodingStatus m_decodingStatus { DecodingStatus::Invalid };
IntSize m_size;
std::optional<IntSize> m_densityCorrectedSize;
SubsamplingLevel m_subsamplingLevel { SubsamplingLevel::Default };
ImageOrientation m_orientation { ImageOrientation::Orientation::None };
Seconds m_duration;
bool m_hasAlpha { true };
Source m_source;
Source m_hdrSource;
};
} // namespace WebCore
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