mirror of
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136 lines
4.0 KiB
C++
136 lines
4.0 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 "SharedSurfaceGL.h"
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#include "SurfaceFactory.h"
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#include "GLLibraryEGL.h"
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#include "SurfaceTypes.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/Mutex.h"
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namespace mozilla {
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namespace gl {
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class GLContext;
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class SharedSurface_EGLImage
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: public SharedSurface_GL
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{
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public:
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static SharedSurface_EGLImage* Create(GLContext* prodGL,
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const GLFormats& formats,
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const gfxIntSize& 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->Type() == SharedSurfaceType::EGLImageShare);
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return (SharedSurface_EGLImage*)surf;
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}
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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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nsRefPtr<gfxImageSurface> mPixels;
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GLuint mProdTexForPipe; // Moves to mProdTex when mPipeActive becomes true.
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EGLImage mImage;
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GLContext* mCurConsGL;
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GLuint mConsTex;
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nsRefPtr<TextureGarbageBin> mGarbageBin;
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EGLSync mSync;
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bool mPipeFailed; // Pipe creation failed, and has been abandoned.
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bool mPipeComplete; // Pipe connects (mPipeActive ? mProdTex : mProdTexForPipe) to mConsTex.
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bool mPipeActive; // Pipe is complete and in use for production.
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SharedSurface_EGLImage(GLContext* gl,
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GLLibraryEGL* egl,
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const gfxIntSize& size,
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bool hasAlpha,
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const GLFormats& formats,
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GLuint prodTex)
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: SharedSurface_GL(SharedSurfaceType::EGLImageShare,
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AttachmentType::GLTexture,
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gl,
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size,
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hasAlpha)
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, mMutex("SharedSurface_EGLImage mutex")
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, mEGL(egl)
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, mFormats(formats)
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, mProdTex(prodTex)
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, mProdTexForPipe(0)
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, mImage(0)
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, mCurConsGL(nullptr)
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, mConsTex(0)
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, mSync(0)
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, mPipeFailed(false)
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, mPipeComplete(false)
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, mPipeActive(false)
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{}
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EGLDisplay Display() const;
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static bool HasExtensions(GLLibraryEGL* egl, GLContext* gl);
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public:
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virtual ~SharedSurface_EGLImage();
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virtual void LockProdImpl();
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virtual void UnlockProdImpl() {}
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virtual void Fence();
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virtual bool WaitSync();
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virtual GLuint Texture() const {
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return mProdTex;
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}
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// Implementation-specific functions below:
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// Returns 0 if the pipe isn't ready. If 0, use GetPixels below.
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GLuint AcquireConsumerTexture(GLContext* consGL);
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// Will be void if AcquireConsumerTexture returns non-zero.
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gfxImageSurface* GetPixels() const;
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};
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class SurfaceFactory_EGLImage
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: public SurfaceFactory_GL
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{
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public:
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// Infallible:
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static SurfaceFactory_EGLImage* Create(GLContext* prodGL,
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const SurfaceCaps& caps);
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protected:
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const EGLContext mContext;
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SurfaceFactory_EGLImage(GLContext* prodGL,
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EGLContext context,
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const SurfaceCaps& caps)
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: SurfaceFactory_GL(prodGL, SharedSurfaceType::EGLImageShare, caps)
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, mContext(context)
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{}
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public:
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virtual SharedSurface* CreateShared(const gfxIntSize& size) {
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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 gfx */
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} /* namespace mozilla */
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#endif /* SHARED_SURFACE_EGL_H_ */
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