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-rw-r--r--xorg-server/glx/glapi.h135
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-/*
- * 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,
- * 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.
- */
-
-/**
- * \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
- * with the X/DRI libGL also.
- */
-
-#ifndef _GLAPI_H
-#define _GLAPI_H
-
-#define GL_GLEXT_PROTOTYPES
-
-#include "GL/gl.h"
-#include "GL/glext.h"
-#include "glthread.h"
-
-struct _glapi_table;
-
-typedef void (*_glapi_proc) (void); /* generic function pointer */
-
-typedef void (*_glapi_warning_func) (void *ctx, const char *str, ...);
-
-#if defined(USE_MGL_NAMESPACE)
-#define _glapi_set_dispatch _mglapi_set_dispatch
-#define _glapi_get_dispatch _mglapi_get_dispatch
-#define _glapi_set_context _mglapi_set_context
-#define _glapi_get_context _mglapi_get_context
-#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;
-
-#define GET_CURRENT_CONTEXT(C) GLcontext *C = (GLcontext *) _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
-#define GET_CURRENT_CONTEXT(C) GLcontext *C = (GLcontext *) _glapi_Context
-#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
- _glapi_set_dispatch(struct _glapi_table *dispatch);
-
-extern struct _glapi_table *_glapi_get_dispatch(void);
-
-extern int
- _glapi_begin_dispatch_override(struct _glapi_table *override);
-
-extern void
- _glapi_end_dispatch_override(int layer);
-
-struct _glapi_table *_glapi_get_override_dispatch(int layer);
-
-extern GLuint _glapi_get_dispatch_table_size(void);
-
-extern int
-
-_glapi_add_dispatch(const char *const *function_names,
- const char *parameter_signature);
-
-extern _glapi_proc _glapi_get_proc_address(const char *funcName);
-
-extern struct _glapi_table *_glapi_create_table_from_handle(void *handle,
- const char
- *symbol_prefix);
-
-#endif