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/*
* Copyright (C) 2024 Igalia S.L.
*
* 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 "RemoteGraphicsContextGLProxy.h"
#if ENABLE(GPU_PROCESS) && ENABLE(WEBGL) && USE(COORDINATED_GRAPHICS) && USE(GBM)
#include <WebCore/CoordinatedPlatformLayerBufferDMABuf.h>
#include <WebCore/DMABufBuffer.h>
#include <WebCore/GraphicsLayerContentsDisplayDelegateCoordinated.h>
#include <WebCore/TextureMapperFlags.h>
namespace WebKit {
using namespace WebCore;
class RemoteGraphicsContextGLProxyGBM final : public RemoteGraphicsContextGLProxy {
WTF_MAKE_FAST_ALLOCATED;
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(RemoteGraphicsContextGLProxyGBM);
public:
virtual ~RemoteGraphicsContextGLProxyGBM() = default;
private:
friend class RemoteGraphicsContextGLProxy;
explicit RemoteGraphicsContextGLProxyGBM(const GraphicsContextGLAttributes& attributes)
: RemoteGraphicsContextGLProxy(attributes)
, m_layerContentsDisplayDelegate(GraphicsLayerContentsDisplayDelegateCoordinated::create())
{
}
// WebCore::GraphicsContextGL
RefPtr<GraphicsLayerContentsDisplayDelegate> layerContentsDisplayDelegate() final { return m_layerContentsDisplayDelegate.copyRef(); }
void prepareForDisplay() final;
Ref<GraphicsLayerContentsDisplayDelegate> m_layerContentsDisplayDelegate;
RefPtr<DMABufBuffer> m_drawingBuffer;
RefPtr<DMABufBuffer> m_displayBuffer;
};
void RemoteGraphicsContextGLProxyGBM::prepareForDisplay()
{
if (isContextLost())
return;
auto sendResult = sendSync(Messages::RemoteGraphicsContextGL::PrepareForDisplay());
if (!sendResult.succeeded()) {
markContextLost();
return;
}
auto [bufferID, bufferAttributes, fenceFD] = sendResult.takeReply();
if (bufferAttributes || (m_drawingBuffer && m_drawingBuffer->id() == bufferID))
std::swap(m_drawingBuffer, m_displayBuffer);
if (bufferAttributes)
m_displayBuffer = DMABufBuffer::create(bufferID, WTFMove(*bufferAttributes));
if (!m_displayBuffer)
return;
OptionSet<TextureMapperFlags> flags = TextureMapperFlags::ShouldFlipTexture;
if (contextAttributes().alpha)
flags.add(TextureMapperFlags::ShouldBlend);
m_layerContentsDisplayDelegate->setDisplayBuffer(CoordinatedPlatformLayerBufferDMABuf::create(Ref { *m_displayBuffer }, flags, WTFMove(fenceFD)));
}
Ref<RemoteGraphicsContextGLProxy> RemoteGraphicsContextGLProxy::platformCreate(const GraphicsContextGLAttributes& attributes)
{
return adoptRef(*new RemoteGraphicsContextGLProxyGBM(attributes));
}
} // namespace WebKit
#endif // ENABLE(GPU_PROCESS) && ENABLE(WEBGL) && USE(COORDINATED_GRAPHICS) && USE(GBM)
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