2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Copyright (C) 2010 VMWare, Inc. All Rights Reserved.
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 * No-op dispatch table.
30 * This file defines a special dispatch table which is loaded with no-op
33 * When there's no current rendering context, calling a GL function like
34 * glBegin() is a no-op. Apps should never normally do this. So as a
35 * debugging aid, each of the no-op functions will emit a warning to
36 * stderr if the MESA_DEBUG or LIBGL_DEBUG env var is set.
41 #include "main/compiler.h"
42 #include "main/glheader.h"
43 #include "glapi/glapi.h"
47 * Called by each of the no-op GL entrypoints.
50 Warn(const char *func
)
52 #if !defined(_WIN32_WCE)
53 if (getenv("MESA_DEBUG") || getenv("LIBGL_DEBUG")) {
54 fprintf(stderr
, "GL User Error: gl%s called without a rendering context\n",
63 * This is called if the user somehow calls an unassigned GL dispatch function.
68 return Warn(" function");
73 * Defines for the glapitemp.h functions.
75 #define KEYWORD1 static
76 #define KEYWORD1_ALT static
77 #define KEYWORD2 GLAPIENTRY
78 #define NAME(func) NoOp##func
79 #define DISPATCH(func, args, msg) Warn(#func);
80 #define RETURN_DISPATCH(func, args, msg) Warn(#func); return 0
84 * Defines for the table of no-op entry points.
86 #define TABLE_ENTRY(name) (_glapi_proc) NoOp##name
87 #define DISPATCH_TABLE_NAME __glapi_noop_table
88 #define UNUSED_TABLE_NAME __unused_noop_functions
91 #include "glapi/glapitemp.h"