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/* $Id: api.h,v 1.1.1.1 2000/01/06 13:26:42 faith Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.1
*
* Copyright (C) 1999 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/* $XFree86: xc/extras/Mesa/src/api.h,v 1.1 1999/12/14 01:31:19 robin Exp $ */
/*
* This header contains stuff only included by api1.c, api2.c and apiext.c
* and cva.c and varray.c
*/
#ifndef API_H
#define API_H
#if defined(GLX_DIRECT_RENDERING) && !defined(XFree86Server) && !defined(GLX_USE_DLOPEN)
#define NEED_MESA_FUNCS_WRAPPED
#include "mesa_api.h"
#endif
/*
* Single/multiple thread context selection.
*/
#ifdef THREADS
/* Get the context associated with the calling thread */
#define GET_CONTEXT GLcontext *CC = gl_get_thread_context()
#define GET_IMMEDIATE struct immediate *IM = (gl_get_thread_context())->input;
#define SET_IMMEDIATE(ctx, im) \
do { \
ctx->input = im; \
} while (0)
#else
/* CC is a global pointer for all threads in the address space */
#define GET_CONTEXT
/* And so is VB */
#define GET_IMMEDIATE struct immediate *IM = CURRENT_INPUT
#define SET_IMMEDIATE(ctx, im) \
do { \
ctx->input = im; \
CURRENT_INPUT = im; \
} while (0)
#endif /* THREADS */
/* Make sure there's a rendering context. KW: Only do this if compiled
* debug.
*/
#ifdef DEBUG
#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); \
}
#else
#define CHECK_CONTEXT
#define CHECK_CONTEXT_RETURN(R)
#endif
#if !defined(CTX_ARG)
#define CTX_ARG
#define CTX_VOID
#define CTX_PRM
#define CTX_VPRM
#endif
/*
* An optimization in a few performance-critical functions.
*/
#ifndef XFree86Server /* don't think we want this in DRI??? */
#define SHORTCUT
#endif
#endif
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