more work on GL_ARB_texture_compression
[mesa.git] / src / mesa / main / glheader.h
1 /* $Id: glheader.h,v 1.9 2000/05/22 19:41:34 brianp Exp $ */
2
3 /*
4 * Mesa 3-D graphics library
5 * Version: 3.3
6 *
7 * Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
8 *
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
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
18 *
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
22 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
23 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 */
26
27
28 #ifndef GLHEADER_H
29 #define GLHEADER_H
30
31
32 /*
33 * This is the top-most include file of the Mesa sources.
34 * It includes gl.h and all system headers which are needed.
35 * Other Mesa source files should _not_ directly include any system
36 * headers. This allows Mesa to be integrated into XFree86 and
37 * allows system-dependent hacks/work-arounds to be collected in one place.
38 *
39 * If you touch this file, everything gets recompiled!
40 *
41 * This file should be included before any other header in the .c files.
42 */
43
44
45 #ifdef XFree86LOADER
46 #include "xf86_ansic.h"
47 #else
48 #include <assert.h>
49 #include <ctype.h>
50 #include <math.h>
51 #include <limits.h>
52 #include <stdlib.h>
53 #include <stdio.h>
54 #include <string.h>
55 #if defined(__linux__) && defined(__i386__)
56 #include <fpu_control.h>
57 #endif
58 #endif
59 #include <float.h>
60
61
62 #ifdef HAVE_CONFIG_H
63 #include "conf.h"
64 #endif
65
66 /* Make sure we include glext.h */
67 #include "GL/gl.h"
68 #include "GL/glext.h"
69
70
71
72 /*
73 * Put compiler/OS/assembly pragmas and macros here to avoid
74 * cluttering other source files.
75 */
76
77
78
79 /*
80 * XXX move as many of these pragma's and MS Windows-isms into
81 * the new src/glheader.h file.
82 */
83
84 #if defined(_WIN32) && !defined(__WIN32__)
85 # define __WIN32__
86 #endif
87
88 #if !defined(OPENSTEP) && (defined(__WIN32__) || defined(__CYGWIN__))
89 # pragma warning( disable : 4068 ) /* unknown pragma */
90 # pragma warning( disable : 4710 ) /* function 'foo' not inlined */
91 # pragma warning( disable : 4711 ) /* function 'foo' selected for automatic inline expansion */
92 # pragma warning( disable : 4127 ) /* conditional expression is constant */
93 # if defined(MESA_MINWARN)
94 # pragma warning( disable : 4244 ) /* '=' : conversion from 'const double ' to 'float ', possible loss of data */
95 # pragma warning( disable : 4018 ) /* '<' : signed/unsigned mismatch */
96 # pragma warning( disable : 4305 ) /* '=' : truncation from 'const double ' to 'float ' */
97 # pragma warning( disable : 4550 ) /* 'function' undefined; assuming extern returning int */
98 # pragma warning( disable : 4761 ) /* integral size mismatch in argument; conversion supplied */
99 # endif
100 # if defined(_MSC_VER) && defined(BUILD_GL32) /* tag specify we're building mesa as a DLL */
101 # define GLAPI __declspec(dllexport)
102 # define WGLAPI __declspec(dllexport)
103 # elif defined(_MSC_VER) && defined(_DLL) /* tag specifying we're building for DLL runtime support */
104 # define GLAPI __declspec(dllimport)
105 # define WGLAPI __declspec(dllimport)
106 # else /* for use with static link lib build of Win32 edition only */
107 # define GLAPI extern
108 # define WGLAPI __declspec(dllimport)
109 # endif /* _STATIC_MESA support */
110 # define GLAPIENTRY __stdcall
111 # define GLAPIENTRYP __stdcall *
112 # define GLCALLBACK __stdcall
113 # define GLCALLBACKP __stdcall *
114 # if defined(__CYGWIN__)
115 # define GLCALLBACKPCAST *
116 # else
117 # define GLCALLBACKPCAST __stdcall *
118 # endif
119 # define GLWINAPI __stdcall
120 # define GLWINAPIV __cdecl
121 #else
122 /* non-Windows compilation */
123 # define GLAPI extern
124 # define GLAPIENTRY
125 # define GLAPIENTRYP *
126 # define GLCALLBACK
127 # define GLCALLBACKP *
128 # define GLCALLBACKPCAST *
129 # define GLWINAPI
130 # define GLWINAPIV
131 #endif /* WIN32 / CYGWIN bracket */
132
133 /* compatability guard so we don't need to change client code */
134
135 #if defined(_WIN32) && !defined(_WINDEF_) && !defined(_GNU_H_WINDOWS32_BASE) && !defined(OPENSTEP)
136 # define CALLBACK GLCALLBACK
137 typedef int (GLAPIENTRY *PROC)();
138 typedef void *HGLRC;
139 typedef void *HDC;
140 typedef unsigned long COLORREF;
141 #endif
142
143 #if defined(_WIN32) && !defined(_WINGDI_) && !defined(_GNU_H_WINDOWS32_DEFINES) && !defined(OPENSTEP)
144 # define WGL_FONT_LINES 0
145 # define WGL_FONT_POLYGONS 1
146 #ifndef _GNU_H_WINDOWS32_FUNCTIONS
147 # ifdef UNICODE
148 # define wglUseFontBitmaps wglUseFontBitmapsW
149 # define wglUseFontOutlines wglUseFontOutlinesW
150 # else
151 # define wglUseFontBitmaps wglUseFontBitmapsA
152 # define wglUseFontOutlines wglUseFontOutlinesA
153 # endif /* !UNICODE */
154 #endif /* _GNU_H_WINDOWS32_FUNCTIONS */
155 typedef struct tagLAYERPLANEDESCRIPTOR LAYERPLANEDESCRIPTOR, *PLAYERPLANEDESCRIPTOR, *LPLAYERPLANEDESCRIPTOR;
156 typedef struct _GLYPHMETRICSFLOAT GLYPHMETRICSFLOAT, *PGLYPHMETRICSFLOAT, *LPGLYPHMETRICSFLOAT;
157 typedef struct tagPIXELFORMATDESCRIPTOR PIXELFORMATDESCRIPTOR, *PPIXELFORMATDESCRIPTOR, *LPPIXELFORMATDESCRIPTOR;
158 #include <gl/mesa_wgl.h>
159 #endif
160
161
162
163
164 /* Disable unreachable code warnings for Watcom C++ */
165 #ifdef __WATCOMC__
166 #pragma disable_message(201)
167 #endif
168
169
170 /* Turn off macro checking systems used by other libraries */
171 #ifdef CHECK
172 #undef CHECK
173 #endif
174
175
176 /* Create a macro so that asm functions can be linked into compilers other
177 * than GNU C
178 */
179 #ifndef _ASMAPI
180 #if !defined( __GNUC__ ) && !defined( VMS )
181 #define _ASMAPI __cdecl
182 #else
183 #define _ASMAPI
184 #endif
185 #ifdef PTR_DECL_IN_FRONT
186 #define _ASMAPIP * _ASMAPI
187 #else
188 #define _ASMAPIP _ASMAPI *
189 #endif
190 #endif
191
192 #ifdef USE_X86_ASM
193 #define _NORMAPI _ASMAPI
194 #define _NORMAPIP _ASMAPIP
195 #else
196 #define _NORMAPI
197 #define _NORMAPIP *
198 #endif
199
200
201
202 #endif /* GLHEADER_H */