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- /* $Id: api.h,v 3.3 1998/02/20 04:48:57 brianp Exp $ */
-
- /*
- * Mesa 3-D graphics library
- * Version: 3.0
- * Copyright (C) 1995-1998 Brian Paul
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-
- /*
- * $Log: api.h,v $
- * Revision 3.3 1998/02/20 04:48:57 brianp
- * updated comments
- *
- * Revision 3.2 1998/02/04 00:44:02 brianp
- * WIN32 patch from Oleg Letsinsky
- *
- * Revision 3.1 1998/02/04 00:14:18 brianp
- * updated for Cygnus (Stephane Rehel)
- *
- * Revision 3.0 1998/01/31 20:41:55 brianp
- * initial rev
- *
- */
-
-
- /*
- * This header contains stuff only included by api1.c, api2.c and apiext.c
- */
-
-
- #ifndef API_H
- #define API_H
-
-
- /*
- * Single/multiple thread context selection.
- */
- #ifdef THREADS
-
- /* Get the context associated with the calling thread */
- #define GET_CONTEXT GLcontext *CC = gl_get_thread_context()
-
- #else
-
- /* CC is a global pointer for all threads in the address space */
- #define GET_CONTEXT
-
- #endif /* THREADS */
-
-
- /*
- * Make sure there's a rendering context.
- */
- #define CHECK_CONTEXT \
- if (!CC) { \
- if (getenv("MESA_DEBUG")) { \
- fprintf(stderr,"Mesa user error: no rendering context.\n"); \
- } \
- return; \
- }
-
- #define CHECK_CONTEXT_RETURN(R) \
- if (!CC) { \
- if (getenv("MESA_DEBUG")) { \
- fprintf(stderr,"Mesa user error: no rendering context.\n"); \
- } \
- return (R); \
- }
-
-
- /*
- * An optimization in a few performance-critical functions.
- */
- #define SHORTCUT
-
-
- /*
- * Windows 95/NT DLL stuff.
- */
- #if !defined(WIN32) && !defined(WINDOWS_NT) && !defined(__CYGWIN32__)
- #define APIENTRY
- #endif
-
-
- #endif
-