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/*
* Copyright (C) 2019-2024 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 "DecodingOptions.h"
#include "GraphicsTypes.h"
#include "ImageOrientation.h"
#include "ImageTypes.h"
#include <initializer_list>
#include <wtf/Forward.h>
namespace WebCore {
struct ImagePaintingOptions {
template<typename Type> static constexpr bool isOptionType =
std::is_same_v<Type, CompositeOperator>
|| std::is_same_v<Type, BlendMode>
|| std::is_same_v<Type, DecodingMode>
|| std::is_same_v<Type, ImageOrientation>
|| std::is_same_v<Type, ImageOrientation::Orientation>
|| std::is_same_v<Type, InterpolationQuality>
|| std::is_same_v<Type, AllowImageSubsampling>
#if USE(SKIA)
|| std::is_same_v<Type, StrictImageClamping>
#endif
|| std::is_same_v<Type, ShowDebugBackground>
|| std::is_same_v<Type, Headroom>;
// This is a single-argument initializer to support pattern of
// ImageDrawResult drawImage(..., ImagePaintingOptions = { ImageOrientation::Orientation::FromImage });
// Should be removed once the pattern is not so prevalent.
template<typename T, typename = std::enable_if_t<isOptionType<std::decay_t<T>>>>
ImagePaintingOptions(std::initializer_list<T> options)
{
for (auto& option : options)
setOption(option);
}
template<typename T, typename = std::enable_if_t<isOptionType<std::decay_t<T>>>>
explicit ImagePaintingOptions(T option)
{
setOption(option);
}
template<typename T, typename U, typename... Rest, typename = std::enable_if_t<isOptionType<std::decay_t<T>>>>
ImagePaintingOptions(T first, U second, Rest... rest)
{
setOption(first);
setOption(second);
(setOption(rest), ...);
}
template<typename... Overrides>
ImagePaintingOptions(const ImagePaintingOptions& other, Overrides... overrides)
: ImagePaintingOptions(other)
{
(setOption(overrides), ...);
}
ImagePaintingOptions() = default;
ImagePaintingOptions(const ImagePaintingOptions&) = default;
ImagePaintingOptions(ImagePaintingOptions&&) = default;
ImagePaintingOptions& operator=(const ImagePaintingOptions&) = default;
ImagePaintingOptions& operator=(ImagePaintingOptions&&) = default;
CompositeOperator compositeOperator() const { return m_compositeOperator; }
BlendMode blendMode() const { return m_blendMode; }
DecodingMode decodingMode() const { return m_decodingMode; }
ImageOrientation orientation() const { return m_orientation; }
InterpolationQuality interpolationQuality() const { return m_interpolationQuality; }
AllowImageSubsampling allowImageSubsampling() const { return m_allowImageSubsampling; }
#if USE(SKIA)
StrictImageClamping strictImageClamping() const { return m_strictImageClamping; }
#endif
ShowDebugBackground showDebugBackground() const { return m_showDebugBackground; }
Headroom headroom() const { return m_headroom; }
private:
void setOption(CompositeOperator compositeOperator) { m_compositeOperator = compositeOperator; }
void setOption(BlendMode blendMode) { m_blendMode = blendMode; }
void setOption(DecodingMode decodingMode) { m_decodingMode = decodingMode; }
void setOption(ImageOrientation orientation) { m_orientation = orientation.orientation(); }
void setOption(ImageOrientation::Orientation orientation) { m_orientation = orientation; }
void setOption(InterpolationQuality interpolationQuality) { m_interpolationQuality = interpolationQuality; }
void setOption(AllowImageSubsampling allowImageSubsampling) { m_allowImageSubsampling = allowImageSubsampling; }
#if USE(SKIA)
void setOption(StrictImageClamping strictImageClamping) { m_strictImageClamping = strictImageClamping; }
#endif
void setOption(ShowDebugBackground showDebugBackground) { m_showDebugBackground = showDebugBackground; }
void setOption(Headroom headroom) { m_headroom = headroom; }
BlendMode m_blendMode : 5 { BlendMode::Normal };
DecodingMode m_decodingMode : 3 { DecodingMode::Synchronous };
CompositeOperator m_compositeOperator : 4 { CompositeOperator::SourceOver };
ImageOrientation::Orientation m_orientation : 4 { ImageOrientation::Orientation::None };
InterpolationQuality m_interpolationQuality : 4 { InterpolationQuality::Default };
AllowImageSubsampling m_allowImageSubsampling : 1 { AllowImageSubsampling::No };
#if USE(SKIA)
StrictImageClamping m_strictImageClamping: 1 { StrictImageClamping::Yes };
#endif
ShowDebugBackground m_showDebugBackground : 1 { ShowDebugBackground::No };
Headroom m_headroom { Headroom::FromImage };
};
WEBCORE_EXPORT TextStream& operator<<(TextStream&, ImagePaintingOptions);
} // namespace WebCore
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