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/*
* Copyright (C) 2016-2023 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. AND ITS CONTRIBUTORS ``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 ITS 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
#if ENABLE(WEBGL)
#include <optional>
#include <wtf/EnumTraits.h>
namespace WebCore {
enum class GraphicsContextGLPowerPreference : uint8_t {
Default,
LowPower,
HighPerformance
};
enum class GraphicsContextGLWebGLVersion : uint8_t {
WebGL1,
WebGL2
};
#if PLATFORM(MAC) || PLATFORM(MACCATALYST)
using PlatformGPUID = uint64_t;
#endif
struct GraphicsContextGLAttributes {
// WebGLContextAttributes
bool alpha { true };
bool depth { true };
bool stencil { false };
bool antialias { true };
bool premultipliedAlpha { true };
bool preserveDrawingBuffer { false };
bool failIfMajorPerformanceCaveat { false };
using PowerPreference = GraphicsContextGLPowerPreference;
PowerPreference powerPreference { PowerPreference::Default };
// Additional attributes.
bool shareResources { true };
bool noExtensions { false };
float devicePixelRatio { 1 };
PowerPreference initialPowerPreference { PowerPreference::Default };
using WebGLVersion = GraphicsContextGLWebGLVersion;
WebGLVersion webGLVersion { WebGLVersion::WebGL1 };
bool forceRequestForHighPerformanceGPU { false };
#if PLATFORM(MAC) || PLATFORM(MACCATALYST)
PlatformGPUID windowGPUID { 0 };
#endif
#if PLATFORM(COCOA)
bool useMetal { true };
#endif
#if ENABLE(WEBXR)
bool xrCompatible { false };
#endif
bool failPlatformContextCreationForTesting { false };
unsigned remoteIPCBufferSizeLog2ForTesting { 0 }; // Not serialized.
PowerPreference effectivePowerPreference() const
{
if (forceRequestForHighPerformanceGPU)
return PowerPreference::HighPerformance;
return powerPreference;
}
};
}
#endif // ENABLE(WEBGL)
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