ReactOS 0.4.15-dev-5865-g640e228
context.h
Go to the documentation of this file.
1/* $Id: context.h,v 1.9 1997/09/29 22:25:28 brianp Exp $ */
2
3/*
4 * Mesa 3-D graphics library
5 * Version: 2.5
6 * Copyright (C) 1995-1997 Brian Paul
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
17 *
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the Free
20 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 */
22
23
24/*
25 * $Log: context.h,v $
26 * Revision 1.9 1997/09/29 22:25:28 brianp
27 * added const to a few function parameters
28 *
29 * Revision 1.8 1997/05/26 21:14:13 brianp
30 * gl_create_visual() now takes red/green/blue/alpha_bits arguments
31 *
32 * Revision 1.7 1997/04/16 23:55:06 brianp
33 * added gl_set_api_table()
34 *
35 * Revision 1.6 1997/04/12 17:12:43 brianp
36 * added gl_get_current_context()
37 *
38 * Revision 1.5 1997/02/27 19:57:38 brianp
39 * added gl_problem() function
40 *
41 * Revision 1.4 1997/02/10 19:49:50 brianp
42 * added gl_ResizeBuffersMESA()
43 *
44 * Revision 1.3 1996/09/19 03:14:49 brianp
45 * now just one parameter for gl_create_framebuffer()
46 *
47 * Revision 1.2 1996/09/15 14:20:22 brianp
48 * added new functions for GLframebuffer and GLvisual support
49 *
50 * Revision 1.1 1996/09/13 01:38:16 brianp
51 * Initial revision
52 *
53 */
54
55
56#ifndef CONTEXT_H
57#define CONTEXT_H
58
59
60#include "types.h"
61
62
63
64#ifdef THREADS
65 /*
66 * A seperate GLcontext for each thread
67 */
68 extern GLcontext *gl_get_thread_context( void );
69#else
70 /*
71 * All threads use same pointer to current context.
72 */
73 extern GLcontext *CC;
74#endif
75
76
77
78/*
79 * There are three Mesa datatypes which are meant to be used by device
80 * drivers:
81 * GLcontext: this contains the Mesa rendering state
82 * GLvisual: this describes the color buffer (rgb vs. ci), whether
83 * or not there's a depth buffer, stencil buffer, etc.
84 * GLframebuffer: contains pointers to the depth buffer, stencil
85 * buffer, accum buffer and alpha buffers.
86 *
87 * These types should be encapsulated by corresponding device driver
88 * datatypes. See xmesa.h and xmesaP.h for an example.
89 *
90 * The following functions create and destroy these datatypes.
91 */
92
93
94/*
95 * Create/destroy a GLvisual. A GLvisual is like a GLX visual. It describes
96 * the colorbuffer, depth buffer, stencil buffer and accum buffer which will
97 * be used by the GL context and framebuffer.
98 */
99extern GLvisual *gl_create_visual( GLboolean rgb_flag,
100 GLboolean alpha_flag,
101 GLboolean db_flag,
102 GLint depth_bits,
103 GLint stencil_bits,
104 GLint accum_bits,
105 GLint index_bits,
106 GLfloat red_scale,
107 GLfloat green_scale,
108 GLfloat blue_scale,
109 GLfloat alpha_scale,
110 GLint red_bits,
111 GLint green_bits,
112 GLint blue_bits,
113 GLint alpha_bits );
114
115extern void gl_destroy_visual( GLvisual *vis );
116
117
118/*
119 * Create/destroy a GLcontext. A GLcontext is like a GLX context. It
120 * contains the rendering state.
121 */
122extern GLcontext *gl_create_context( GLvisual *visual,
123 GLcontext *share_list,
124 void *driver_ctx );
125
126extern void gl_destroy_context( GLcontext *ctx );
127
128
129/*
130 * Create/destroy a GLframebuffer. A GLframebuffer is like a GLX drawable.
131 * It bundles up the depth buffer, stencil buffer and accum buffers into a
132 * single entity.
133 */
135
137
138
139
141
143
144extern void gl_copy_context(const GLcontext *src, GLcontext *dst, GLuint mask);
145
146extern void gl_set_api_table( GLcontext *ctx, const struct gl_api_table *api );
147
148
149
150/*
151 * GL_MESA_resize_buffers extension
152 */
153extern void gl_ResizeBuffersMESA( GLcontext *ctx );
154
155
156
157/*
158 * Miscellaneous
159 */
160
161extern void gl_problem( const GLcontext *ctx, const char *s );
162
163extern void gl_warning( const GLcontext *ctx, const char *s );
164
165extern void gl_error( GLcontext *ctx, GLenum error, const char *s );
166
168
169
170extern void gl_update_state( GLcontext *ctx );
171
172
173
174#ifdef PROFILE
175extern GLdouble gl_time( void );
176#endif
177
178
179#endif
void gl_set_api_table(GLcontext *ctx, const struct gl_api_table *api)
Definition: context.c:1372
GLenum gl_GetError(GLcontext *ctx)
Definition: context.c:1481
void gl_copy_context(const GLcontext *src, GLcontext *dst, GLuint mask)
Definition: context.c:1293
GLcontext * CC
GLvisual * gl_create_visual(GLboolean rgb_flag, GLboolean alpha_flag, GLboolean db_flag, GLint depth_bits, GLint stencil_bits, GLint accum_bits, GLint index_bits, GLfloat red_scale, GLfloat green_scale, GLfloat blue_scale, GLfloat alpha_scale, GLint red_bits, GLint green_bits, GLint blue_bits, GLint alpha_bits)
Definition: context.c:936
void gl_ResizeBuffersMESA(GLcontext *ctx)
Definition: context.c:1497
GLframebuffer * gl_create_framebuffer(GLvisual *visual)
Definition: context.c:1230
GLcontext * gl_create_context(GLvisual *visual, GLcontext *share_list, void *driver_ctx)
Definition: context.c:1093
void gl_destroy_framebuffer(GLframebuffer *buffer)
Definition: context.c:1249
void gl_make_current(GLcontext *ctx, GLframebuffer *buffer)
Definition: context.c:1276
void gl_problem(const GLcontext *ctx, const char *s)
Definition: context.c:1394
void gl_warning(const GLcontext *ctx, const char *s)
Definition: context.c:1406
GLcontext * gl_get_current_context(void)
void gl_error(GLcontext *ctx, GLenum error, const char *s)
Definition: context.c:1421
void gl_update_state(GLcontext *ctx)
Definition: context.c:1749
void gl_destroy_context(GLcontext *ctx)
Definition: context.c:1186
void gl_destroy_visual(GLvisual *vis)
Definition: context.c:1029
float GLfloat
Definition: gl.h:161
double GLdouble
Definition: gl.h:163
unsigned int GLenum
Definition: gl.h:150
GLdouble s
Definition: gl.h:2039
unsigned int GLuint
Definition: gl.h:159
int GLint
Definition: gl.h:156
unsigned char GLboolean
Definition: gl.h:151
GLenum src
Definition: glext.h:6340
GLuint buffer
Definition: glext.h:5915
GLenum GLint GLuint mask
Definition: glext.h:6028
GLenum GLenum dst
Definition: glext.h:6340
#define error(str)
Definition: mkdosfs.c:1605
api
Definition: notification.c:38
GLcontext * gl_get_thread_context(void)
Definition: swimpl.c:1383