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+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5
+ *
+ * Copyright (C) 1999-2006 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
+
+
+#include "GL/gl.h"
+#include "glapitable.h"
+#include "glthread.h"
+
+
+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
+
+
+/**
+ ** 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 __thread void * _glapi_tls_Context
+ __attribute__((tls_model("initial-exec")));
+
+# 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_noop_enable_warnings(GLboolean enable);
+
+extern void
+_glapi_set_warning_func(_glapi_warning_func func);
+
+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 void
+_glapi_check_table(const struct _glapi_table *table);
+
+
+extern int
+_glapi_add_dispatch( const char * const * function_names,
+ const char * parameter_signature );
+
+extern GLint
+_glapi_get_proc_offset(const char *funcName);
+
+
+extern _glapi_proc
+_glapi_get_proc_address(const char *funcName);
+
+
+extern const char *
+_glapi_get_proc_name(GLuint offset);
+
+
+#endif