gecko-dev/gfx/gl/GLContextEGL.h

130 строки
3.4 KiB
C++

/* -*- 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 http://mozilla.org/MPL/2.0/. */
#ifndef GLCONTEXTEGL_H_
#define GLCONTEXTEGL_H_
#include "GLContext.h"
#include "GLLibraryEGL.h"
#ifdef MOZ_WIDGET_GONK
#include "HwcComposer2D.h"
#endif
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);
public:
MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(GLContextEGL)
GLContextEGL(const SurfaceCaps& caps,
GLContext* shareContext,
bool isOffscreen,
EGLConfig config,
EGLSurface surface,
EGLContext context);
~GLContextEGL();
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);
protected:
friend class GLContextProviderEGL;
EGLConfig mConfig;
EGLSurface mSurface;
EGLSurface mSurfaceOverride;
EGLContext mContext;
nsRefPtr<gfxASurface> mThebesSurface;
bool mBound;
bool mIsPBuffer;
bool mIsDoubleBuffered;
bool mCanBindToTexture;
bool mShareWithEGLImage;
#ifdef MOZ_WIDGET_GONK
nsRefPtr<HwcComposer2D> mHwc;
#endif
static EGLSurface CreatePBufferSurfaceTryingPowerOfTwo(EGLConfig config,
EGLenum bindToTextureFormat,
gfxIntSize& pbsize);
};
}
}
#endif // GLCONTEXTEGL_H_