-/* $Id: glapi.h,v 1.16 2000/09/15 19:45:41 brianp Exp $ */
-
/*
* Mesa 3-D graphics library
- * Version: 3.5
+ * Version: 6.3
*
- * Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2004 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"),
*/
+/**
+ * \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
struct _glapi_table;
+typedef void (*_glapi_warning_func)(void *ctx, const char *str, ...);
-extern void *_glapi_Context;
+typedef void (*_glapi_proc)(void); /* generic function pointer */
+
+
+#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;
+/**
+ * Macro for declaration and fetching the current context.
+ *
+ * \param C local variable which will hold the current context.
+ *
+ * It should be used in the variable declaration area of a function:
+ * \code
+ * ...
+ * {
+ * GET_CURRENT_CONTEXT(ctx);
+ * ...
+ * \endcode
+ */
+# 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) */
+
+extern void
+_glapi_noop_enable_warnings(GLboolean enable);
+
+extern void
+_glapi_set_warning_func(_glapi_warning_func func);
extern void
_glapi_check_multithread(void);
_glapi_get_dispatch(void);
-#if defined(GL_MESA_TRACE)
-extern struct _glapi_table *
-_glapi_get_true_dispatch(void);
-#endif
+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_proc_offset(const char *funcName);
-extern const GLvoid *
+extern _glapi_proc
_glapi_get_proc_address(const char *funcName);