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5f2bebf7a5
With this commit, we now use a forked version of MESA which only supports OpenGL 1.1, like the windows implementation does. It exposes : - The same pixel formats - The same set of extensions - Nothing more All of this without taking 10% of your build time. If you need a more modern option, look at the MESA package from Rapps, which is (and must be) maintained outside of this code tree. CORE-7499
180 lines
5 KiB
C
180 lines
5 KiB
C
/* $Id: context.h,v 1.9 1997/09/29 22:25:28 brianp Exp $ */
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/*
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* Mesa 3-D graphics library
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* Version: 2.5
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* Copyright (C) 1995-1997 Brian Paul
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*
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* $Log: context.h,v $
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* Revision 1.9 1997/09/29 22:25:28 brianp
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* added const to a few function parameters
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*
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* Revision 1.8 1997/05/26 21:14:13 brianp
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* gl_create_visual() now takes red/green/blue/alpha_bits arguments
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*
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* Revision 1.7 1997/04/16 23:55:06 brianp
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* added gl_set_api_table()
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*
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* Revision 1.6 1997/04/12 17:12:43 brianp
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* added gl_get_current_context()
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*
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* Revision 1.5 1997/02/27 19:57:38 brianp
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* added gl_problem() function
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*
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* Revision 1.4 1997/02/10 19:49:50 brianp
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* added gl_ResizeBuffersMESA()
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*
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* Revision 1.3 1996/09/19 03:14:49 brianp
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* now just one parameter for gl_create_framebuffer()
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*
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* Revision 1.2 1996/09/15 14:20:22 brianp
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* added new functions for GLframebuffer and GLvisual support
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*
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* Revision 1.1 1996/09/13 01:38:16 brianp
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* Initial revision
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*
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*/
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#ifndef CONTEXT_H
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#define CONTEXT_H
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#include "types.h"
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#ifdef THREADS
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/*
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* A seperate GLcontext for each thread
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*/
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extern GLcontext *gl_get_thread_context( void );
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#else
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/*
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* All threads use same pointer to current context.
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*/
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extern GLcontext *CC;
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#endif
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/*
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* There are three Mesa datatypes which are meant to be used by device
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* drivers:
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* GLcontext: this contains the Mesa rendering state
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* GLvisual: this describes the color buffer (rgb vs. ci), whether
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* or not there's a depth buffer, stencil buffer, etc.
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* GLframebuffer: contains pointers to the depth buffer, stencil
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* buffer, accum buffer and alpha buffers.
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*
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* These types should be encapsulated by corresponding device driver
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* datatypes. See xmesa.h and xmesaP.h for an example.
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*
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* The following functions create and destroy these datatypes.
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*/
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/*
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* Create/destroy a GLvisual. A GLvisual is like a GLX visual. It describes
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* the colorbuffer, depth buffer, stencil buffer and accum buffer which will
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* be used by the GL context and framebuffer.
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*/
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extern GLvisual *gl_create_visual( GLboolean rgb_flag,
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GLboolean alpha_flag,
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GLboolean db_flag,
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GLint depth_bits,
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GLint stencil_bits,
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GLint accum_bits,
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GLint index_bits,
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GLfloat red_scale,
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GLfloat green_scale,
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GLfloat blue_scale,
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GLfloat alpha_scale,
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GLint red_bits,
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GLint green_bits,
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GLint blue_bits,
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GLint alpha_bits );
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extern void gl_destroy_visual( GLvisual *vis );
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/*
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* Create/destroy a GLcontext. A GLcontext is like a GLX context. It
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* contains the rendering state.
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*/
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extern GLcontext *gl_create_context( GLvisual *visual,
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GLcontext *share_list,
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void *driver_ctx );
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extern void gl_destroy_context( GLcontext *ctx );
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/*
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* Create/destroy a GLframebuffer. A GLframebuffer is like a GLX drawable.
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* It bundles up the depth buffer, stencil buffer and accum buffers into a
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* single entity.
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*/
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extern GLframebuffer *gl_create_framebuffer( GLvisual *visual );
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extern void gl_destroy_framebuffer( GLframebuffer *buffer );
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extern void gl_make_current( GLcontext *ctx, GLframebuffer *buffer );
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extern GLcontext *gl_get_current_context(void);
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extern void gl_copy_context(const GLcontext *src, GLcontext *dst, GLuint mask);
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extern void gl_set_api_table( GLcontext *ctx, const struct gl_api_table *api );
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/*
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* GL_MESA_resize_buffers extension
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*/
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extern void gl_ResizeBuffersMESA( GLcontext *ctx );
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/*
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* Miscellaneous
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*/
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extern void gl_problem( const GLcontext *ctx, const char *s );
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extern void gl_warning( const GLcontext *ctx, const char *s );
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extern void gl_error( GLcontext *ctx, GLenum error, const char *s );
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extern GLenum gl_GetError( GLcontext *ctx );
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extern void gl_update_state( GLcontext *ctx );
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#ifdef PROFILE
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extern GLdouble gl_time( void );
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#endif
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#endif
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