glapi.h revision a3f3701cea1ba388e7c877955252bb7375eedebd
/*
* Mesa 3-D graphics library
* Version: 7.1
*
* Copyright (C) 1999-2008 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,
* 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.
*/
/**
* \mainpage Mesa GL API Module
*
* \section GLAPIIntroduction Introduction
*
* The Mesa GL API module is responsible for dispatching all the
* gl*() functions. All GL functions are dispatched by jumping through
* the current dispatch table (basically a struct full of function
* pointers.)
*
* A per-thread current dispatch table and per-thread current context
* pointer are managed by this module too.
*
* This module is intended to be non-Mesa-specific so it can be used
*/
#ifndef _GLAPI_H
#define _GLAPI_H
#define GL_GLEXT_PROTOTYPES
#include "glthread.h"
struct _glapi_table;
typedef void (*_glapi_proc) (void); /* generic function pointer */
#if defined(USE_MGL_NAMESPACE)
#define _glapi_Context _mglapi_Context
#define _glapi_Dispatch _mglapi_Dispatch
#endif
/*
* Number of extension functions which we can dynamically add at runtime.
*/
#define MAX_EXTENSION_FUNCS 300
/**
** Define the GET_CURRENT_CONTEXT() macro.
** \param C local variable which will hold the current context.
**/
#if defined (GLX_USE_TLS)
const extern void *_glapi_Context;
const extern struct _glapi_table *_glapi_Dispatch;
extern TLS void *_glapi_tls_Context;
#else
extern void *_glapi_Context;
extern struct _glapi_table *_glapi_Dispatch;
#ifdef THREADS
#define GET_CURRENT_CONTEXT(C) GLcontext *C = (GLcontext *) (_glapi_Context ? _glapi_Context : _glapi_get_context())
#else
#endif
#endif /* defined (GLX_USE_TLS) */
/**
** GL API public functions
**/
extern void
_glapi_check_multithread(void);
extern void
_glapi_set_context(void *context);
extern void *_glapi_get_context(void);
extern void
extern struct _glapi_table *_glapi_get_dispatch(void);
extern int
extern void
extern GLuint _glapi_get_dispatch_table_size(void);
extern int
_glapi_add_dispatch(const char *const *function_names,
const char *parameter_signature);
const char
#endif