author B2G Bumper Bot <>
Mon, 14 Apr 2014 16:01:24 -0700
changeset 196968 f0eed6372c00ed67b1ac04f74167b4e958864834
parent 189868 9cfebec86c16c1f84cc3667bde8dd87eec0fd71f
child 197259 5d7dd6086a5a78f283cdf7f979395cd5cb357c25
permissions -rw-r--r--
Bumping manifests a=b2g-bump

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set ts=8 sts=4 et sw=4 tw=80: */
/* 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 */


#include "GLContext.h"
#include "GLLibraryEGL.h"

#include "HwcComposer2D.h"

namespace mozilla {
namespace gl {

class GLContextEGL : public GLContext
    friend class TextureImageEGL;

    static already_AddRefed<GLContextEGL>
    CreateGLContext(const SurfaceCaps& caps,
                    GLContextEGL *shareContext,
                    bool isOffscreen,
                    EGLConfig config,
                    EGLSurface surface);

    GLContextEGL(const SurfaceCaps& caps,
                 GLContext* shareContext,
                 bool isOffscreen,
                 EGLConfig config,
                 EGLSurface surface,
                 EGLContext context);


    virtual GLContextType GetContextType() const MOZ_OVERRIDE { return GLContextType::EGL; }

    static GLContextEGL* Cast(GLContext* gl) {
        MOZ_ASSERT(gl->GetContextType() == GLContextType::EGL);
        return static_cast<GLContextEGL*>(gl);

    bool Init();

    virtual bool IsDoubleBuffered() const MOZ_OVERRIDE {
        return mIsDoubleBuffered;

    void SetIsDoubleBuffered(bool aIsDB) {
        mIsDoubleBuffered = aIsDB;

    virtual bool SupportsRobustness() const MOZ_OVERRIDE {
        return sEGLLibrary.HasRobustness();

    virtual bool IsANGLE() const MOZ_OVERRIDE {
        return sEGLLibrary.IsANGLE();

    virtual bool BindTexImage() MOZ_OVERRIDE;

    virtual bool ReleaseTexImage() MOZ_OVERRIDE;

    void SetEGLSurfaceOverride(EGLSurface surf);

    virtual bool MakeCurrentImpl(bool aForce) MOZ_OVERRIDE;

    virtual bool IsCurrent() MOZ_OVERRIDE;

    virtual bool RenewSurface() MOZ_OVERRIDE;

    virtual void ReleaseSurface() MOZ_OVERRIDE;

    virtual bool SetupLookupFunction() MOZ_OVERRIDE;

    virtual bool SwapBuffers() MOZ_OVERRIDE;

    // hold a reference to the given surface
    // for the lifetime of this context.
    void HoldSurface(gfxASurface *aSurf);

    EGLContext GetEGLContext() {
        return mContext;

    bool BindTex2DOffscreen(GLContext *aOffscreen);
    void UnbindTex2DOffscreen(GLContext *aOffscreen);
    void BindOffscreenFramebuffer();

    static already_AddRefed<GLContextEGL>
    CreateEGLPixmapOffscreenContext(const gfxIntSize& size);

    static already_AddRefed<GLContextEGL>
    CreateEGLPBufferOffscreenContext(const gfxIntSize& size);

    friend class GLContextProviderEGL;

    EGLConfig  mConfig;
    EGLSurface mSurface;
    EGLSurface mSurfaceOverride;
    EGLContext mContext;
    nsRefPtr<gfxASurface> mThebesSurface;
    bool mBound;

    bool mIsPBuffer;
    bool mIsDoubleBuffered;
    bool mCanBindToTexture;
    bool mShareWithEGLImage;
    nsRefPtr<HwcComposer2D> mHwc;

    static EGLSurface CreatePBufferSurfaceTryingPowerOfTwo(EGLConfig config,
                                                           EGLenum bindToTextureFormat,
                                                           gfxIntSize& pbsize);