gfx/gl/SharedSurfaceEGL.h
author Nathan Froyd <froydnj@mozilla.com>
Wed, 07 Oct 2015 15:05:02 -0400
changeset 301510 1f51d1614b9a58e41dd3a1bf2dc6aad34dbb2170
parent 301146 d56c816b35c34133a9249663b2c19830a29b133a
child 301514 91d4539e00cecb658604e021675a923c60ef3235
permissions -rw-r--r--
Bug 1207245 - part 3 - switch all uses of mozilla::RefPtr<T> to nsRefPtr<T>; r=ehsan This commit was generated using the following script, executed at the top level of a typical source code checkout. # Don't modify select files in mfbt/ because it's not worth trying to # tease out the dependencies currently. # # Don't modify anything in media/gmp-clearkey/0.1/ because those files # use their own RefPtr, defined in their own RefCounted.h. find . -name '*.cpp' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \ grep -v 'mfbt/RefPtr.h' | \ grep -v 'mfbt/nsRefPtr.h' | \ grep -v 'mfbt/RefCounted.h' | \ grep -v 'media/gmp-clearkey/0.1/' | \ xargs perl -p -i -e ' s/mozilla::RefPtr/nsRefPtr/g; # handle declarations in headers s/\bRefPtr</nsRefPtr</g; # handle local variables in functions s#mozilla/RefPtr.h#mozilla/nsRefPtr.h#; # handle #includes s#mfbt/RefPtr.h#mfbt/nsRefPtr.h#; # handle strange #includes ' # |using mozilla::RefPtr;| is OK; |using nsRefPtr;| is invalid syntax. find . -name '*.cpp' -o -name '*.mm' | xargs sed -i -e '/using nsRefPtr/d' # RefPtr.h used |byRef| for dealing with COM-style outparams. # nsRefPtr.h uses |getter_AddRefs|. # Fixup that mismatch. find . -name '*.cpp' | \ xargs perl -p -i -e 's/byRef/getter_AddRefs/g'

/* -*- 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 "mozilla/Attributes.h"
#include "mozilla/Mutex.h"
#include "nsAutoPtr.h"
#include "SharedSurface.h"

namespace mozilla {
namespace gl {

class GLContext;
class GLLibraryEGL;
class TextureGarbageBin;

class SharedSurface_EGLImage
    : public SharedSurface
{
public:
    static UniquePtr<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->mType == 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;
public:
    const EGLImage mImage;
protected:
    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() override {}
    virtual void UnlockProdImpl() override {}

    virtual void Fence() override;
    virtual bool WaitSync() override;
    virtual bool PollSync() override;

    virtual GLuint ProdTexture() override {
      return mProdTex;
    }

    // Implementation-specific functions below:
    // Returns texture and target
    void AcquireConsumerTexture(GLContext* consGL, GLuint* out_texture, GLuint* out_target);

    virtual bool ToSurfaceDescriptor(layers::SurfaceDescriptor* const out_descriptor) override;
};



class SurfaceFactory_EGLImage
    : public SurfaceFactory
{
public:
    // Fallible:
    static UniquePtr<SurfaceFactory_EGLImage> Create(GLContext* prodGL,
                                                     const SurfaceCaps& caps,
                                                     const nsRefPtr<layers::ISurfaceAllocator>& allocator,
                                                     const layers::TextureFlags& flags);

protected:
    const EGLContext mContext;

    SurfaceFactory_EGLImage(GLContext* prodGL, const SurfaceCaps& caps,
                            const nsRefPtr<layers::ISurfaceAllocator>& allocator,
                            const layers::TextureFlags& flags,
                            EGLContext context)
        : SurfaceFactory(SharedSurfaceType::EGLImageShare, prodGL, caps, allocator, flags)
        , mContext(context)
    { }

public:
    virtual UniquePtr<SharedSurface> CreateShared(const gfx::IntSize& size) override {
        bool hasAlpha = mReadCaps.alpha;
        return SharedSurface_EGLImage::Create(mGL, mFormats, size, hasAlpha, mContext);
    }
};

} // namespace gl

} /* namespace mozilla */

#endif /* SHARED_SURFACE_EGL_H_ */