gecko-dev/gfx/gl/SharedSurfaceEGL.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_EGL_H_
#define SHARED_SURFACE_EGL_H_
#include "SharedSurfaceGL.h"
#include "SurfaceFactory.h"
#include "GLLibraryEGL.h"
#include "SurfaceTypes.h"
#include "mozilla/Attributes.h"
#include "mozilla/Mutex.h"
namespace mozilla {
namespace gl {
class GLContext;
class TextureGarbageBin;
class SharedSurface_EGLImage
: public SharedSurface_GL
{
public:
static SharedSurface_EGLImage* Create(GLContext* prodGL,
const GLFormats& formats,
const gfx::IntSize& size,
bool hasAlpha,
EGLContext context);
static SharedSurface_EGLImage* Cast(SharedSurface* surf) {
MOZ_ASSERT(surf->Type() == SharedSurfaceType::EGLImageShare);
return (SharedSurface_EGLImage*)surf;
}
static bool HasExtensions(GLLibraryEGL* egl, GLContext* gl);
protected:
mutable Mutex mMutex;
GLLibraryEGL* const mEGL;
const GLFormats mFormats;
GLuint mProdTex;
EGLImage mImage;
GLContext* mCurConsGL;
GLuint mConsTex;
nsRefPtr<TextureGarbageBin> mGarbageBin;
EGLSync mSync;
SharedSurface_EGLImage(GLContext* gl,
GLLibraryEGL* egl,
const gfx::IntSize& size,
bool hasAlpha,
const GLFormats& formats,
GLuint prodTex,
EGLImage image);
EGLDisplay Display() const;
void UpdateProdTexture(const MutexAutoLock& curAutoLock);
public:
virtual ~SharedSurface_EGLImage();
virtual void LockProdImpl() MOZ_OVERRIDE {}
virtual void UnlockProdImpl() MOZ_OVERRIDE {}
virtual void Fence() MOZ_OVERRIDE;
virtual bool WaitSync() MOZ_OVERRIDE;
virtual GLuint ProdTexture() MOZ_OVERRIDE {
return mProdTex;
}
// Implementation-specific functions below:
// Returns texture and target
void AcquireConsumerTexture(GLContext* consGL, GLuint* out_texture, GLuint* out_target);
};
class SurfaceFactory_EGLImage
: public SurfaceFactory_GL
{
public:
// Fallible:
static SurfaceFactory_EGLImage* Create(GLContext* prodGL,
const SurfaceCaps& caps);
protected:
const EGLContext mContext;
SurfaceFactory_EGLImage(GLContext* prodGL,
EGLContext context,
const SurfaceCaps& caps)
: SurfaceFactory_GL(prodGL, SharedSurfaceType::EGLImageShare, caps)
, mContext(context)
{}
public:
virtual SharedSurface* CreateShared(const gfx::IntSize& size) MOZ_OVERRIDE {
bool hasAlpha = mReadCaps.alpha;
return SharedSurface_EGLImage::Create(mGL, mFormats, size, hasAlpha, mContext);
}
};
} /* namespace gfx */
} /* namespace mozilla */
#endif /* SHARED_SURFACE_EGL_H_ */