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/* $Id: dispatch.c,v 1.18 2001/01/02 10:07:34 joukj Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.5
*
* Copyright (C) 1999-2000 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.
*/
/*
* This file generates all the gl* function entyrpoints.
* But if we're using X86-optimized dispatch (X86/glapi_x86.S) then
* each of the entrypoints will be prefixed with _glapi_fallback_*
* and will be called by the glapi_x86.S code when we're in thread-
* safe mode.
*
* Eventually this file may be replaced by automatically generated
* code from an API spec file.
*
* NOTE: This file should _not_ be used when compiling Mesa for a DRI-
* based device driver.
*
*/
#ifdef PC_HEADER
#include "all.h"
#else
#include "glheader.h"
#include "glapi.h"
#include "glapitable.h"
#include "glthread.h"
#endif
#define KEYWORD1
#define KEYWORD2 GLAPIENTRY
#if defined(USE_X86_ASM) && !defined(__WIN32__) && !defined(XF86DRI)
#define NAME(func) _glapi_fallback_##func
#elif defined(USE_MGL_NAMESPACE)
#define NAME(func) mgl##func
#else
#define NAME(func) gl##func
#endif
#ifdef DEBUG
#if 0
static int
trace(void)
{
static int trace = -1;
if (trace < 0)
trace = getenv("MESA_TRACE") ? 1 : 0;
return trace > 0;
}
#endif
#define F stderr
#define DISPATCH(FUNC, ARGS, MESSAGE) \
const struct _glapi_table *dispatch; \
dispatch = _glapi_Dispatch ? _glapi_Dispatch : _glapi_get_dispatch();\
(dispatch->FUNC) ARGS
#define RETURN_DISPATCH(FUNC, ARGS, MESSAGE) \
const struct _glapi_table *dispatch; \
dispatch = _glapi_Dispatch ? _glapi_Dispatch : _glapi_get_dispatch();\
return (dispatch->FUNC) ARGS
#if 0
/* From both macros above... */
if (trace()) { \
fprintf MESSAGE; \
fprintf(F, "\n"); \
}
#endif
#else
#ifdef THREADS
#define DISPATCH(FUNC, ARGS, MESSAGE) \
const struct _glapi_table *dispatch; \
dispatch = _glapi_Dispatch ? _glapi_Dispatch : _glapi_get_dispatch();\
(dispatch->FUNC) ARGS
#define RETURN_DISPATCH(FUNC, ARGS, MESSAGE) \
const struct _glapi_table *dispatch; \
dispatch = _glapi_Dispatch ? _glapi_Dispatch : _glapi_get_dispatch();\
return (dispatch->FUNC) ARGS
#else
#define DISPATCH(FUNC, ARGS, MESSAGE) \
__asm__ ("jmp *(%%eax) ;" : : "a" (&(_glapi_Dispatch->FUNC)) )
#define RETURN_DISPATCH(FUNC, ARGS, MESSAGE) \
const struct _glapi_table *dispatch; \
dispatch = _glapi_Dispatch;\
return (dispatch->FUNC) ARGS
#endif
#endif
#ifndef GLAPIENTRY
#define GLAPIENTRY
#endif
#define DO_GEOMETRY
#include "glapitemp.h"
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