зеркало из https://github.com/mozilla/gecko-dev.git
99 строки
2.9 KiB
C++
99 строки
2.9 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_GRALLOC_H_
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#define SHARED_SURFACE_GRALLOC_H_
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#include "mozilla/layers/LayersSurfaces.h"
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#include "SharedSurface.h"
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namespace mozilla {
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namespace layers {
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class ISurfaceAllocator;
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class GrallocTextureClientOGL;
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}
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namespace gl {
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class GLContext;
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class GLLibraryEGL;
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class SharedSurface_Gralloc
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: public SharedSurface
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{
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public:
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static SharedSurface_Gralloc* 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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layers::ISurfaceAllocator* allocator);
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static SharedSurface_Gralloc* Cast(SharedSurface* surf) {
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MOZ_ASSERT(surf->mType == SharedSurfaceType::Gralloc);
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return (SharedSurface_Gralloc*)surf;
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}
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protected:
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GLLibraryEGL* const mEGL;
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EGLSync mSync;
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RefPtr<layers::ISurfaceAllocator> mAllocator;
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RefPtr<layers::GrallocTextureClientOGL> mTextureClient;
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const GLuint mProdTex;
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SharedSurface_Gralloc(GLContext* prodGL,
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const gfx::IntSize& size,
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bool hasAlpha,
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GLLibraryEGL* egl,
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layers::ISurfaceAllocator* allocator,
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layers::GrallocTextureClientOGL* textureClient,
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GLuint prodTex);
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static bool HasExtensions(GLLibraryEGL* egl, GLContext* gl);
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public:
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virtual ~SharedSurface_Gralloc();
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virtual void Fence() MOZ_OVERRIDE;
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virtual bool WaitSync() MOZ_OVERRIDE;
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virtual void WaitForBufferOwnership() MOZ_OVERRIDE;
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virtual void LockProdImpl() MOZ_OVERRIDE {}
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virtual void UnlockProdImpl() MOZ_OVERRIDE {}
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virtual GLuint ProdTexture() MOZ_OVERRIDE {
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return mProdTex;
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}
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layers::GrallocTextureClientOGL* GetTextureClient() {
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return mTextureClient;
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}
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};
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class SurfaceFactory_Gralloc
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: public SurfaceFactory
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{
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protected:
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RefPtr<layers::ISurfaceAllocator> mAllocator;
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public:
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SurfaceFactory_Gralloc(GLContext* prodGL,
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const SurfaceCaps& caps,
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layers::ISurfaceAllocator* allocator = nullptr);
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virtual SharedSurface* CreateShared(const gfx::IntSize& size) MOZ_OVERRIDE {
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bool hasAlpha = mReadCaps.alpha;
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if (!mAllocator) {
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return nullptr;
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}
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return SharedSurface_Gralloc::Create(mGL, mFormats, size, hasAlpha, mAllocator);
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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_GRALLOC_H_ */
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