1 /* $Id: glheader.h,v 1.28 2002/06/15 02:38:15 brianp Exp $ */
4 * Mesa 3-D graphics library
7 * Copyright (C) 1999-2002 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
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:
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
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.
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.
39 * If you touch this file, everything gets recompiled!
41 * This file should be included before any other header in the .c files.
43 * Put compiler/OS/assembly pragmas and macros here to avoid
44 * cluttering other source files.
50 #include "xf86_ansic.h"
54 /* If we can use Compaq's Fast Math Library on Alpha */
55 #if defined(__alpha__) && defined(CCPML)
64 #if defined(__linux__) && defined(__i386__)
65 #include <fpu_control.h>
77 #if defined(_WIN32) && !defined(__WIN32__) && !defined(__CYGWIN__)
79 # define finite _finite
82 #if !defined(OPENSTEP) && (defined(__WIN32__) && !defined(__CYGWIN__))
83 # pragma warning( disable : 4068 ) /* unknown pragma */
84 # pragma warning( disable : 4710 ) /* function 'foo' not inlined */
85 # pragma warning( disable : 4711 ) /* function 'foo' selected for automatic inline expansion */
86 # pragma warning( disable : 4127 ) /* conditional expression is constant */
87 # if defined(MESA_MINWARN)
88 # pragma warning( disable : 4244 ) /* '=' : conversion from 'const double ' to 'float ', possible loss of data */
89 # pragma warning( disable : 4018 ) /* '<' : signed/unsigned mismatch */
90 # pragma warning( disable : 4305 ) /* '=' : truncation from 'const double ' to 'float ' */
91 # pragma warning( disable : 4550 ) /* 'function' undefined; assuming extern returning int */
92 # pragma warning( disable : 4761 ) /* integral size mismatch in argument; conversion supplied */
94 # if defined(_MSC_VER) && defined(BUILD_GL32) /* tag specify we're building mesa as a DLL */
95 # define GLAPI __declspec(dllexport)
96 # define WGLAPI __declspec(dllexport)
97 # elif defined(_MSC_VER) && defined(_DLL) /* tag specifying we're building for DLL runtime support */
98 # define GLAPI __declspec(dllimport)
99 # define WGLAPI __declspec(dllimport)
100 # else /* for use with static link lib build of Win32 edition only */
101 # define GLAPI extern
102 # define WGLAPI __declspec(dllimport)
103 # endif /* _STATIC_MESA support */
104 # define GLAPIENTRY __stdcall
105 # define GLAPIENTRYP __stdcall *
106 # define GLCALLBACK __stdcall
107 # define GLCALLBACKP __stdcall *
108 # if defined(__CYGWIN__)
109 # define GLCALLBACKPCAST *
111 # define GLCALLBACKPCAST __stdcall *
113 # define GLWINAPI __stdcall
114 # define GLWINAPIV __cdecl
116 /* non-Windows compilation */
117 # define GLAPI extern
119 # define GLAPIENTRYP *
121 # define GLCALLBACKP *
122 # define GLCALLBACKPCAST *
125 #endif /* WIN32 / CYGWIN bracket */
127 /* compatability guard so we don't need to change client code */
129 #if defined(_WIN32) && !defined(_WINDEF_) && !defined(_GNU_H_WINDOWS32_BASE) && !defined(OPENSTEP) && !defined(__CYGWIN__)
131 # define CALLBACK GLCALLBACK
135 typedef int (GLAPIENTRY
*PROC
)();
136 typedef unsigned long COLORREF
;
140 /* Make sure we include glext.h from gl.h */
141 #define GL_GLEXT_PROTOTYPES
144 #if defined(_WIN32) && !defined(_WINGDI_) && !defined(_GNU_H_WINDOWS32_DEFINES) && !defined(OPENSTEP)
145 # define WGL_FONT_LINES 0
146 # define WGL_FONT_POLYGONS 1
147 #ifndef _GNU_H_WINDOWS32_FUNCTIONS
149 # define wglUseFontBitmaps wglUseFontBitmapsW
150 # define wglUseFontOutlines wglUseFontOutlinesW
152 # define wglUseFontBitmaps wglUseFontBitmapsA
153 # define wglUseFontOutlines wglUseFontOutlinesA
154 # endif /* !UNICODE */
155 #endif /* _GNU_H_WINDOWS32_FUNCTIONS */
156 typedef struct tagLAYERPLANEDESCRIPTOR LAYERPLANEDESCRIPTOR
, *PLAYERPLANEDESCRIPTOR
, *LPLAYERPLANEDESCRIPTOR
;
157 typedef struct _GLYPHMETRICSFLOAT GLYPHMETRICSFLOAT
, *PGLYPHMETRICSFLOAT
, *LPGLYPHMETRICSFLOAT
;
158 typedef struct tagPIXELFORMATDESCRIPTOR PIXELFORMATDESCRIPTOR
, *PPIXELFORMATDESCRIPTOR
, *LPPIXELFORMATDESCRIPTOR
;
159 #if !defined(GLX_USE_MESA)
160 #include <gl/mesa_wgl.h>
166 * Either define MESA_BIG_ENDIAN or MESA_LITTLE_ENDIAN.
167 * Do not use them unless absolutely necessary!
168 * Try to use a runtime test instead.
169 * For now, only used by some DRI hardware drivers for color/texel packing.
171 #if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && BYTE_ORDER == BIG_ENDIAN
172 #if defined(__linux__)
173 #include <byteswap.h>
174 #define CPU_TO_LE32( x ) bswap_32( x )
176 #define CPU_TO_LE32( x ) ( x ) /* fix me for non-Linux big-endian! */
178 #define MESA_BIG_ENDIAN 1
180 #define CPU_TO_LE32( x ) ( x )
181 #define MESA_LITTLE_ENDIAN 1
183 #define LE32_TO_CPU( x ) CPU_TO_LE32( x )
186 /* This is a macro on IRIX */
194 #include "GL/glext.h"
204 #include <GL/internal/glcore.h>
208 /* Disable unreachable code warnings for Watcom C++ */
210 #pragma disable_message(201)
214 /* Turn off macro checking systems used by other libraries */
220 /* Create a macro so that asm functions can be linked into compilers other
224 #if !defined( __GNUC__ ) && !defined( VMS )
225 #define _ASMAPI __cdecl
229 #ifdef PTR_DECL_IN_FRONT
230 #define _ASMAPIP * _ASMAPI
232 #define _ASMAPIP _ASMAPI *
237 #define _NORMAPI _ASMAPI
238 #define _NORMAPIP _ASMAPIP
245 /* Function inlining */
246 #if defined(__GNUC__)
247 # define INLINE __inline__
248 #elif defined(__MSC__)
249 # define INLINE __inline
250 #elif defined(_MSC_VER)
251 # define INLINE __inline
253 # define INLINE __inline
260 * Provide a reasonable replacement for __FUNCTION__ when using
261 * non-GNU C compilers.
263 #if !defined(__GNUC__)
264 #define STRINGIZE(x) #x
265 #define STRINGIZE_EVAL(x) STRINGIZE(x)
266 #define __FUNCTION__ STRINGIZE_EVAL(__FILE__) ", line " STRINGIZE_EVAL(__LINE__)
270 /* Some compilers don't like some of Mesa's const usage */
279 # define ASSERT(X) assert(X)
286 * Sometimes we treat GLfloats as GLints. On x86 systems, moving a float
287 * as a int (thereby using integer registers instead of fp registers) is
288 * a performance win. Typically, this can be done with ordinary casts.
289 * But with gcc's -fstrict-aliasing flag (which defaults to on in gcc 3.0)
290 * these casts generate warnings.
291 * The following union typedef is used to solve that.
293 typedef union { GLfloat f
; GLint i
; } fi_type
;
296 #endif /* GLHEADER_H */