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/*
* Copyright (C) 2022-2023 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.
*/
#include "config.h"
#include "WebGPUPresentationContextImpl.h"
#if HAVE(WEBGPU_IMPLEMENTATION)
#include "WebGPUCanvasConfiguration.h"
#include "WebGPUConvertToBackingContext.h"
#include "WebGPUDeviceImpl.h"
#include "WebGPUTextureDescriptor.h"
#include "WebGPUTextureImpl.h"
#include <WebGPU/WebGPUExt.h>
#if PLATFORM(COCOA)
#include <wtf/MachSendRight.h>
#endif
namespace WebCore::WebGPU {
PresentationContextImpl::PresentationContextImpl(WebGPUPtr<WGPUSurface>&& surface, ConvertToBackingContext& convertToBackingContext)
: m_backing(WTFMove(surface))
, m_convertToBackingContext(convertToBackingContext)
{
}
PresentationContextImpl::~PresentationContextImpl() = default;
void PresentationContextImpl::configure(const CanvasConfiguration& canvasConfiguration)
{
m_swapChain = nullptr;
m_format = canvasConfiguration.format;
WGPUSwapChainDescriptor backingDescriptor {
nullptr,
nullptr,
m_convertToBackingContext->convertTextureUsageFlagsToBacking(canvasConfiguration.usage),
m_convertToBackingContext->convertToBacking(canvasConfiguration.format),
m_width,
m_height,
WGPUPresentMode_Immediate,
};
m_swapChain = adoptWebGPU(wgpuDeviceCreateSwapChain(m_convertToBackingContext->convertToBacking(canvasConfiguration.device), m_backing.get(), &backingDescriptor));
}
void PresentationContextImpl::unconfigure()
{
if (!m_swapChain)
return;
m_swapChain = nullptr;
m_format = TextureFormat::Bgra8unorm;
m_width = 0;
m_height = 0;
m_swapChain = nullptr;
m_currentTexture = nullptr;
}
RefPtr<Texture> PresentationContextImpl::getCurrentTexture()
{
if (!m_swapChain)
return nullptr; // FIXME: This should return an invalid texture instead.
if (!m_currentTexture) {
ASSERT(m_swapChain);
m_currentTexture = TextureImpl::create(WebGPUPtr<WGPUTexture> { wgpuSwapChainGetCurrentTexture(m_swapChain.get()) }, m_format, TextureDimension::_2d, m_convertToBackingContext);
}
return m_currentTexture;
}
void PresentationContextImpl::present()
{
wgpuSwapChainPresent(m_swapChain.get());
m_currentTexture = nullptr;
}
} // namespace WebCore::WebGPU
#endif // HAVE(WEBGPU_IMPLEMENTATION)
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