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/*
* Copyright (C) 2017-2023 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 "IntSize.h"
#include <optional>
namespace WebCore {
enum class DecodingMode : uint8_t {
Auto,
Synchronous,
Asynchronous
};
enum class ShouldDecodeToHDR : bool {
No,
Yes
};
class DecodingOptions {
public:
DecodingOptions(DecodingMode decodingMode = DecodingMode::Synchronous, ShouldDecodeToHDR shouldDecodeToHDR = ShouldDecodeToHDR::No, const std::optional<IntSize>& sizeForDrawing = std::nullopt)
: m_decodingMode(decodingMode)
, m_shouldDecodeToHDR(shouldDecodeToHDR)
, m_sizeForDrawing(sizeForDrawing)
{
}
friend bool operator==(const DecodingOptions&, const DecodingOptions&) = default;
DecodingMode decodingMode() const { return m_decodingMode; }
bool isAuto() const { return m_decodingMode == DecodingMode::Auto; }
bool isSynchronous() const { return m_decodingMode == DecodingMode::Synchronous; }
bool isAsynchronous() const { return m_decodingMode == DecodingMode::Asynchronous; }
ShouldDecodeToHDR shouldDecodeToHDR() const { return m_shouldDecodeToHDR; }
std::optional<IntSize> sizeForDrawing() const { return m_sizeForDrawing; }
bool hasFullSize() const { return !m_sizeForDrawing; }
bool hasSizeForDrawing() const { return !!m_sizeForDrawing; }
bool isCompatibleWith(const DecodingOptions& other) const
{
if (shouldDecodeToHDR() != other.shouldDecodeToHDR())
return false;
if (isAuto() || other.isAuto())
return false;
if (hasFullSize())
return true;
if (other.hasFullSize())
return false;
return sizeForDrawing()->maxDimension() >= other.sizeForDrawing()->maxDimension();
}
private:
DecodingMode m_decodingMode;
ShouldDecodeToHDR m_shouldDecodeToHDR;
std::optional<IntSize> m_sizeForDrawing;
};
TextStream& operator<<(TextStream&, DecodingMode);
} // namespace WebCore
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