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/*
* Copyright (C) 2022 Metrological Group B.V.
* Copyright (C) 2022 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.
*/
#pragma once
#include "TextureMapperPlatformLayerProxy.h"
#if USE(COORDINATED_GRAPHICS) && USE(TEXTURE_MAPPER_DMABUF)
#include "DMABufFormat.h"
#include "DMABufObject.h"
#include "TextureMapperGL.h"
#include "TextureMapperPlatformLayer.h"
#include <cstdint>
#include <memory>
namespace WebCore {
class TextureMapperPlatformLayerProxyDMABuf final : public TextureMapperPlatformLayerProxy {
WTF_MAKE_FAST_ALLOCATED;
public:
TextureMapperPlatformLayerProxyDMABuf();
virtual ~TextureMapperPlatformLayerProxyDMABuf();
bool isDMABufBased() const override { return true; }
WEBCORE_EXPORT void activateOnCompositingThread(Compositor*, TextureMapperLayer*) override;
WEBCORE_EXPORT void invalidate() override;
WEBCORE_EXPORT void swapBuffer() override;
class DMABufLayer : public ThreadSafeRefCounted<DMABufLayer>, public TextureMapperPlatformLayer {
WTF_MAKE_FAST_ALLOCATED;
public:
DMABufLayer(DMABufObject&&, TextureMapperGL::Flags = 0);
virtual ~DMABufLayer();
void paintToTextureMapper(TextureMapper&, const FloatRect&, const TransformationMatrix& modelViewMatrix = { }, float opacity = 1.0) final;
void release()
{
m_object.releaseFlag.release();
}
private:
friend class TextureMapperPlatformLayerProxyDMABuf;
struct EGLImageData;
static std::unique_ptr<EGLImageData> createEGLImageData(DMABufObject&);
DMABufObject m_object;
std::unique_ptr<EGLImageData> m_imageData;
TextureMapperGL::Flags m_flags;
static constexpr unsigned c_maximumAge { 16 };
unsigned m_age { 0 };
};
template<typename F>
void pushDMABuf(DMABufObject&& dmabufObject, const F& constructor, TextureMapperGL::Flags flags = 0)
{
ASSERT(m_lock.isHeld());
auto result = m_layers.ensure(dmabufObject.handle,
[&] {
return adoptRef(*new DMABufLayer(constructor(WTFMove(dmabufObject)), flags));
});
pushDMABuf(result.iterator->value.copyRef());
}
private:
void pushDMABuf(Ref<DMABufLayer>&&);
#if ASSERT_ENABLED
RefPtr<Thread> m_compositorThread;
#endif
using LayerMap = HashMap<uintptr_t, Ref<DMABufLayer>, WTF::DefaultHash<uintptr_t>, WTF::UnsignedWithZeroKeyHashTraits<uintptr_t>>;
LayerMap m_layers;
RefPtr<DMABufLayer> m_pendingLayer;
RefPtr<DMABufLayer> m_committedLayer;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_TEXTUREMAPPER_PLATFORMLAYERPROXY(TextureMapperPlatformLayerProxyDMABuf, isDMABufBased());
#endif // USE(COORDINATED_GRAPHICS) && USE(TEXTURE_MAPPER_DMABUF)
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