1 /* $Id: context.h,v 1.1 1999/08/19 00:55:41 jtg Exp $ */
4 * Mesa 3-D graphics library
7 * Copyright (C) 1999 Brian Paul All Rights Reserved.
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
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14 * Software is furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice shall be included
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19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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41 * A seperate GLcontext for each thread
43 extern GLcontext
*gl_get_thread_context( void );
46 * All threads use same pointer to current context.
49 extern struct immediate
*CURRENT_INPUT
;
55 * There are three Mesa datatypes which are meant to be used by device
57 * GLcontext: this contains the Mesa rendering state
58 * GLvisual: this describes the color buffer (rgb vs. ci), whether
59 * or not there's a depth buffer, stencil buffer, etc.
60 * GLframebuffer: contains pointers to the depth buffer, stencil
61 * buffer, accum buffer and alpha buffers.
63 * These types should be encapsulated by corresponding device driver
64 * datatypes. See xmesa.h and xmesaP.h for an example.
66 * In OOP terms, GLcontext, GLvisual, and GLframebuffer are base classes
67 * which the device driver must derive from.
69 * The following functions create and destroy these datatypes.
74 * Create/destroy a GLvisual. A GLvisual is like a GLX visual. It describes
75 * the colorbuffer, depth buffer, stencil buffer and accum buffer which will
76 * be used by the GL context and framebuffer.
78 extern GLvisual
*gl_create_visual( GLboolean rgbFlag
,
91 extern void gl_destroy_visual( GLvisual
*vis
);
95 * Create/destroy a GLcontext. A GLcontext is like a GLX context. It
96 * contains the rendering state.
98 extern GLcontext
*gl_create_context( GLvisual
*visual
,
99 GLcontext
*share_list
,
103 extern void gl_destroy_context( GLcontext
*ctx
);
105 /* Called by the driver after both the context and driver are fully
106 * initialized. Currently just reads the config file.
108 extern void gl_context_initialize( GLcontext
*ctx
);
111 * Create/destroy a GLframebuffer. A GLframebuffer is like a GLX drawable.
112 * It bundles up the depth buffer, stencil buffer and accum buffers into a
115 extern GLframebuffer
*gl_create_framebuffer( GLvisual
*visual
);
117 extern void gl_destroy_framebuffer( GLframebuffer
*buffer
);
121 extern void gl_make_current( GLcontext
*ctx
, GLframebuffer
*buffer
);
123 extern GLcontext
*gl_get_current_context(void);
125 extern void gl_copy_context(const GLcontext
*src
, GLcontext
*dst
, GLuint mask
);
127 extern void gl_set_api_table( GLcontext
*ctx
, const struct gl_api_table
*api
);
132 * GL_MESA_resize_buffers extension
134 extern void gl_ResizeBuffersMESA( GLcontext
*ctx
);
142 extern void gl_problem( const GLcontext
*ctx
, const char *s
);
144 extern void gl_warning( const GLcontext
*ctx
, const char *s
);
146 extern void gl_error( GLcontext
*ctx
, GLenum error
, const char *s
);
147 extern void gl_compile_error( GLcontext
*ctx
, GLenum error
, const char *s
);
149 extern GLenum
gl_GetError( GLcontext
*ctx
);
152 extern void gl_update_state( GLcontext
*ctx
);
156 extern void gl_print_state( const char *msg
, GLuint state
);
159 extern void gl_print_enable_flags( const char *msg
, GLuint flags
);
163 extern GLdouble
gl_time( void );