119 lines
3.7 KiB
C++
119 lines
3.7 KiB
C++
/* -*- Mode: c++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40; -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef SHARED_SURFACE_EGL_H_
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#define SHARED_SURFACE_EGL_H_
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#include "mozilla/Attributes.h"
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#include "mozilla/Mutex.h"
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#include "SharedSurface.h"
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namespace mozilla {
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namespace gl {
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class GLContext;
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class GLLibraryEGL;
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class TextureGarbageBin;
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class SharedSurface_EGLImage
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: public SharedSurface
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{
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public:
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static UniquePtr<SharedSurface_EGLImage> Create(GLContext* prodGL,
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const GLFormats& formats,
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const gfx::IntSize& size,
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bool hasAlpha,
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EGLContext context);
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static SharedSurface_EGLImage* Cast(SharedSurface* surf) {
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MOZ_ASSERT(surf->mType == SharedSurfaceType::EGLImageShare);
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return (SharedSurface_EGLImage*)surf;
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}
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static bool HasExtensions(GLLibraryEGL* egl, GLContext* gl);
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protected:
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mutable Mutex mMutex;
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GLLibraryEGL* const mEGL;
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const GLFormats mFormats;
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GLuint mProdTex;
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public:
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const EGLImage mImage;
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protected:
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EGLSync mSync;
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SharedSurface_EGLImage(GLContext* gl,
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GLLibraryEGL* egl,
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const gfx::IntSize& size,
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bool hasAlpha,
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const GLFormats& formats,
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GLuint prodTex,
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EGLImage image);
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EGLDisplay Display() const;
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void UpdateProdTexture(const MutexAutoLock& curAutoLock);
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public:
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virtual ~SharedSurface_EGLImage();
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virtual layers::TextureFlags GetTextureFlags() const override;
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virtual void LockProdImpl() override {}
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virtual void UnlockProdImpl() override {}
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virtual void ProducerAcquireImpl() override {}
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virtual void ProducerReleaseImpl() override;
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virtual void ProducerReadAcquireImpl() override;
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virtual void ProducerReadReleaseImpl() override {};
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virtual GLuint ProdTexture() override {
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return mProdTex;
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}
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// Implementation-specific functions below:
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// Returns texture and target
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virtual bool ToSurfaceDescriptor(layers::SurfaceDescriptor* const out_descriptor) override;
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virtual bool ReadbackBySharedHandle(gfx::DataSourceSurface* out_surface) override;
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};
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class SurfaceFactory_EGLImage
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: public SurfaceFactory
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{
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public:
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// Fallible:
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static UniquePtr<SurfaceFactory_EGLImage> Create(GLContext* prodGL,
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const SurfaceCaps& caps,
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const RefPtr<layers::LayersIPCChannel>& allocator,
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const layers::TextureFlags& flags);
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protected:
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const EGLContext mContext;
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SurfaceFactory_EGLImage(GLContext* prodGL, const SurfaceCaps& caps,
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const RefPtr<layers::LayersIPCChannel>& allocator,
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const layers::TextureFlags& flags,
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EGLContext context)
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: SurfaceFactory(SharedSurfaceType::EGLImageShare, prodGL, caps, allocator, flags)
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, mContext(context)
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{ }
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public:
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virtual UniquePtr<SharedSurface> CreateShared(const gfx::IntSize& size) override {
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bool hasAlpha = mReadCaps.alpha;
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return SharedSurface_EGLImage::Create(mGL, mFormats, size, hasAlpha, mContext);
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}
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};
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} // namespace gl
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} /* namespace mozilla */
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#endif /* SHARED_SURFACE_EGL_H_ */
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