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gfx/gl/GLBlitHelper.h@129ffea94266 (annotated)

gfx/gl/GLBlitHelper.h

Sat, 03 Jan 2015 20:18:00 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Sat, 03 Jan 2015 20:18:00 +0100

branch

TOR_BUG_3246

changeset 7

129ffea94266

permissions

-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

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 GLBLITHELPER_H_
michael@0	8	#define GLBLITHELPER_H_
michael@0	9
michael@0	10	#include "GLContextTypes.h"
michael@0	11	#include "GLConsts.h"
michael@0	12	#include "nsSize.h"
michael@0	13	#include "mozilla/Attributes.h"
michael@0	14	#include "mozilla/gfx/Point.h"
michael@0	15
michael@0	16	namespace mozilla {
michael@0	17	namespace gl {
michael@0	18
michael@0	19	class GLContext;
michael@0	20
michael@0	21	/**
michael@0	22	* Helper function that creates a 2D texture aSize.width x aSize.height with
michael@0	23	* storage type specified by aFormats. Returns GL texture object id.
michael@0	24	*
michael@0	25	* See mozilla::gl::CreateTexture.
michael@0	26	*/
michael@0	27	GLuint CreateTextureForOffscreen(GLContext* aGL, const GLFormats& aFormats,
michael@0	28	const gfx::IntSize& aSize);
michael@0	29
michael@0	30	/**
michael@0	31	* Helper function that creates a 2D texture aSize.width x aSize.height with
michael@0	32	* storage type aInternalFormat. Returns GL texture object id.
michael@0	33	*
michael@0	34	* Initialize textyre parameters to:
michael@0	35	* GL_TEXTURE_MIN_FILTER = GL_LINEAR
michael@0	36	* GL_TEXTURE_MAG_FILTER = GL_LINEAR
michael@0	37	* GL_TEXTURE_WRAP_S = GL_CLAMP_TO_EDGE
michael@0	38	* GL_TEXTURE_WRAP_T = GL_CLAMP_TO_EDGE
michael@0	39	*/
michael@0	40	GLuint CreateTexture(GLContext* aGL, GLenum aInternalFormat, GLenum aFormat,
michael@0	41	GLenum aType, const gfx::IntSize& aSize);
michael@0	42
michael@0	43	/**
michael@0	44	* Helper function to create, potentially, multisample render buffers suitable
michael@0	45	* for offscreen rendering. Buffers of size aSize.width x aSize.height with
michael@0	46	* storage specified by aFormat. returns GL render buffer object id.
michael@0	47	*/
michael@0	48	GLuint CreateRenderbuffer(GLContext* aGL, GLenum aFormat, GLsizei aSamples,
michael@0	49	const gfx::IntSize& aSize);
michael@0	50
michael@0	51	/**
michael@0	52	* Helper function to create, potentially, multisample render buffers suitable
michael@0	53	* for offscreen rendering. Buffers of size aSize.width x aSize.height with
michael@0	54	* storage specified by aFormats. GL render buffer object ids are returned via
michael@0	55	* aColorMSRB, aDepthRB, and aStencilRB
michael@0	56	*/
michael@0	57	void CreateRenderbuffersForOffscreen(GLContext* aGL, const GLFormats& aFormats,
michael@0	58	const gfx::IntSize& aSize, bool aMultisample,
michael@0	59	GLuint* aColorMSRB, GLuint* aDepthRB,
michael@0	60	GLuint* aStencilRB);
michael@0	61
michael@0	62
michael@0	63	/** Buffer blitting helper */
michael@0	64	class GLBlitHelper MOZ_FINAL
michael@0	65	{
michael@0	66	// The GLContext is the sole owner of the GLBlitHelper.
michael@0	67	GLContext* mGL;
michael@0	68
michael@0	69	GLuint mTexBlit_Buffer;
michael@0	70	GLuint mTexBlit_VertShader;
michael@0	71	GLuint mTex2DBlit_FragShader;
michael@0	72	GLuint mTex2DRectBlit_FragShader;
michael@0	73	GLuint mTex2DBlit_Program;
michael@0	74	GLuint mTex2DRectBlit_Program;
michael@0	75
michael@0	76	void UseBlitProgram();
michael@0	77	void SetBlitFramebufferForDestTexture(GLuint aTexture);
michael@0	78
michael@0	79	bool UseTexQuadProgram(GLenum target, const gfx::IntSize& srcSize);
michael@0	80	bool InitTexQuadProgram(GLenum target = LOCAL_GL_TEXTURE_2D);
michael@0	81	void DeleteTexBlitProgram();
michael@0	82
michael@0	83	public:
michael@0	84
michael@0	85	GLBlitHelper(GLContext* gl);
michael@0	86	~GLBlitHelper();
michael@0	87
michael@0	88	// If you don't have |srcFormats| for the 2nd definition,
michael@0	89	// then you'll need the framebuffer_blit extensions to use
michael@0	90	// the first BlitFramebufferToFramebuffer.
michael@0	91	void BlitFramebufferToFramebuffer(GLuint srcFB, GLuint destFB,
michael@0	92	const gfx::IntSize& srcSize,
michael@0	93	const gfx::IntSize& destSize);
michael@0	94	void BlitFramebufferToFramebuffer(GLuint srcFB, GLuint destFB,
michael@0	95	const gfx::IntSize& srcSize,
michael@0	96	const gfx::IntSize& destSize,
michael@0	97	const GLFormats& srcFormats);
michael@0	98	void BlitTextureToFramebuffer(GLuint srcTex, GLuint destFB,
michael@0	99	const gfx::IntSize& srcSize,
michael@0	100	const gfx::IntSize& destSize,
michael@0	101	GLenum srcTarget = LOCAL_GL_TEXTURE_2D);
michael@0	102	void BlitFramebufferToTexture(GLuint srcFB, GLuint destTex,
michael@0	103	const gfx::IntSize& srcSize,
michael@0	104	const gfx::IntSize& destSize,
michael@0	105	GLenum destTarget = LOCAL_GL_TEXTURE_2D);
michael@0	106	void BlitTextureToTexture(GLuint srcTex, GLuint destTex,
michael@0	107	const gfx::IntSize& srcSize,
michael@0	108	const gfx::IntSize& destSize,
michael@0	109	GLenum srcTarget = LOCAL_GL_TEXTURE_2D,
michael@0	110	GLenum destTarget = LOCAL_GL_TEXTURE_2D);
michael@0	111	};
michael@0	112
michael@0	113	}
michael@0	114	}
michael@0	115
michael@0	116	#endif // GLBLITHELPER_H_