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gfx/gl/GLContextEGL.h@97036ab72558 (annotated)

gfx/gl/GLContextEGL.h

Tue, 06 Jan 2015 21:39:09 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Tue, 06 Jan 2015 21:39:09 +0100

branch

TOR_BUG_9701

changeset 8

97036ab72558

permissions

-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0	1	/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0	2	/* vim: set ts=8 sts=4 et sw=4 tw=80: */
michael@0	3	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	4	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	5	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	6
michael@0	7	#ifndef GLCONTEXTEGL_H_
michael@0	8	#define GLCONTEXTEGL_H_
michael@0	9
michael@0	10	#include "GLContext.h"
michael@0	11	#include "GLLibraryEGL.h"
michael@0	12
michael@0	13	#ifdef MOZ_WIDGET_GONK
michael@0	14	#include "HwcComposer2D.h"
michael@0	15	#endif
michael@0	16
michael@0	17	namespace mozilla {
michael@0	18	namespace gl {
michael@0	19
michael@0	20	class GLContextEGL : public GLContext
michael@0	21	{
michael@0	22	friend class TextureImageEGL;
michael@0	23
michael@0	24	static already_AddRefed<GLContextEGL>
michael@0	25	CreateGLContext(const SurfaceCaps& caps,
michael@0	26	GLContextEGL *shareContext,
michael@0	27	bool isOffscreen,
michael@0	28	EGLConfig config,
michael@0	29	EGLSurface surface);
michael@0	30
michael@0	31	public:
michael@0	32	MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(GLContextEGL)
michael@0	33	GLContextEGL(const SurfaceCaps& caps,
michael@0	34	GLContext* shareContext,
michael@0	35	bool isOffscreen,
michael@0	36	EGLConfig config,
michael@0	37	EGLSurface surface,
michael@0	38	EGLContext context);
michael@0	39
michael@0	40	~GLContextEGL();
michael@0	41
michael@0	42	virtual GLContextType GetContextType() const MOZ_OVERRIDE { return GLContextType::EGL; }
michael@0	43
michael@0	44	static GLContextEGL* Cast(GLContext* gl) {
michael@0	45	MOZ_ASSERT(gl->GetContextType() == GLContextType::EGL);
michael@0	46	return static_cast<GLContextEGL*>(gl);
michael@0	47	}
michael@0	48
michael@0	49	bool Init() MOZ_OVERRIDE;
michael@0	50
michael@0	51	virtual bool IsDoubleBuffered() const MOZ_OVERRIDE {
michael@0	52	return mIsDoubleBuffered;
michael@0	53	}
michael@0	54
michael@0	55	void SetIsDoubleBuffered(bool aIsDB) {
michael@0	56	mIsDoubleBuffered = aIsDB;
michael@0	57	}
michael@0	58
michael@0	59	virtual bool SupportsRobustness() const MOZ_OVERRIDE {
michael@0	60	return sEGLLibrary.HasRobustness();
michael@0	61	}
michael@0	62
michael@0	63	virtual bool IsANGLE() const MOZ_OVERRIDE {
michael@0	64	return sEGLLibrary.IsANGLE();
michael@0	65	}
michael@0	66
michael@0	67	virtual bool BindTexImage() MOZ_OVERRIDE;
michael@0	68
michael@0	69	virtual bool ReleaseTexImage() MOZ_OVERRIDE;
michael@0	70
michael@0	71	void SetEGLSurfaceOverride(EGLSurface surf);
michael@0	72
michael@0	73	virtual bool MakeCurrentImpl(bool aForce) MOZ_OVERRIDE;
michael@0	74
michael@0	75	virtual bool IsCurrent() MOZ_OVERRIDE;
michael@0	76
michael@0	77	virtual bool RenewSurface() MOZ_OVERRIDE;
michael@0	78
michael@0	79	virtual void ReleaseSurface() MOZ_OVERRIDE;
michael@0	80
michael@0	81	virtual bool SetupLookupFunction() MOZ_OVERRIDE;
michael@0	82
michael@0	83	virtual bool SwapBuffers() MOZ_OVERRIDE;
michael@0	84
michael@0	85	// hold a reference to the given surface
michael@0	86	// for the lifetime of this context.
michael@0	87	void HoldSurface(gfxASurface *aSurf);
michael@0	88
michael@0	89	EGLContext GetEGLContext() {
michael@0	90	return mContext;
michael@0	91	}
michael@0	92
michael@0	93	bool BindTex2DOffscreen(GLContext *aOffscreen);
michael@0	94	void UnbindTex2DOffscreen(GLContext *aOffscreen);
michael@0	95	void BindOffscreenFramebuffer();
michael@0	96
michael@0	97	static already_AddRefed<GLContextEGL>
michael@0	98	CreateEGLPixmapOffscreenContext(const gfxIntSize& size);
michael@0	99
michael@0	100	static already_AddRefed<GLContextEGL>
michael@0	101	CreateEGLPBufferOffscreenContext(const gfxIntSize& size);
michael@0	102
michael@0	103	protected:
michael@0	104	friend class GLContextProviderEGL;
michael@0	105
michael@0	106	EGLConfig mConfig;
michael@0	107	EGLSurface mSurface;
michael@0	108	EGLSurface mSurfaceOverride;
michael@0	109	EGLContext mContext;
michael@0	110	nsRefPtr<gfxASurface> mThebesSurface;
michael@0	111	bool mBound;
michael@0	112
michael@0	113	bool mIsPBuffer;
michael@0	114	bool mIsDoubleBuffered;
michael@0	115	bool mCanBindToTexture;
michael@0	116	bool mShareWithEGLImage;
michael@0	117	#ifdef MOZ_WIDGET_GONK
michael@0	118	nsRefPtr<HwcComposer2D> mHwc;
michael@0	119	#endif
michael@0	120	bool mOwnsContext;
michael@0	121
michael@0	122	static EGLSurface CreatePBufferSurfaceTryingPowerOfTwo(EGLConfig config,
michael@0	123	EGLenum bindToTextureFormat,
michael@0	124	gfxIntSize& pbsize);
michael@0	125	};
michael@0	126
michael@0	127	}
michael@0	128	}
michael@0	129
michael@0	130	#endif // GLCONTEXTEGL_H_