gecko-dev/gfx/gl/SharedSurfaceGralloc.h

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/* -*- Mode: c++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40; -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef SHARED_SURFACE_GRALLOC_H_
#define SHARED_SURFACE_GRALLOC_H_
#include "mozilla/layers/CompositorTypes.h"
#include "mozilla/layers/LayersSurfaces.h"
#include "SharedSurface.h"
namespace mozilla {
namespace layers {
class ISurfaceAllocator;
class TextureClient;
}
namespace gl {
class GLContext;
class GLLibraryEGL;
class SharedSurface_Gralloc
: public SharedSurface
{
public:
static UniquePtr<SharedSurface_Gralloc> Create(GLContext* prodGL,
const GLFormats& formats,
const gfx::IntSize& size,
bool hasAlpha,
layers::TextureFlags flags,
layers::ISurfaceAllocator* allocator);
static SharedSurface_Gralloc* Cast(SharedSurface* surf) {
MOZ_ASSERT(surf->mType == SharedSurfaceType::Gralloc);
return (SharedSurface_Gralloc*)surf;
}
protected:
GLLibraryEGL* const mEGL;
EGLSync mSync;
RefPtr<layers::ISurfaceAllocator> mAllocator;
RefPtr<layers::TextureClient> mTextureClient;
const GLuint mProdTex;
SharedSurface_Gralloc(GLContext* prodGL,
const gfx::IntSize& size,
bool hasAlpha,
GLLibraryEGL* egl,
layers::ISurfaceAllocator* allocator,
layers::TextureClient* textureClient,
GLuint prodTex);
static bool HasExtensions(GLLibraryEGL* egl, GLContext* gl);
public:
virtual ~SharedSurface_Gralloc();
virtual void ProducerAcquireImpl() override {}
virtual void ProducerReleaseImpl() override;
virtual void WaitForBufferOwnership() override;
virtual void LockProdImpl() override {}
virtual void UnlockProdImpl() override {}
virtual GLuint ProdTexture() override {
return mProdTex;
}
layers::TextureClient* GetTextureClient() {
return mTextureClient;
}
virtual bool ToSurfaceDescriptor(layers::SurfaceDescriptor* const out_descriptor) override;
virtual bool ReadbackBySharedHandle(gfx::DataSourceSurface* out_surface) override;
};
class SurfaceFactory_Gralloc
: public SurfaceFactory
{
public:
SurfaceFactory_Gralloc(GLContext* prodGL, const SurfaceCaps& caps,
const RefPtr<layers::ISurfaceAllocator>& allocator,
const layers::TextureFlags& flags);
virtual UniquePtr<SharedSurface> CreateShared(const gfx::IntSize& size) override {
bool hasAlpha = mReadCaps.alpha;
UniquePtr<SharedSurface> ret;
if (mAllocator) {
ret = SharedSurface_Gralloc::Create(mGL, mFormats, size, hasAlpha,
mFlags, mAllocator);
}
return Move(ret);
}
};
} /* namespace gl */
} /* namespace mozilla */
#endif /* SHARED_SURFACE_GRALLOC_H_ */