| /* |
| * 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) |