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/*
* Mesa 3-D graphics library
* Version: 7.8
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
* Copyright (C) 2010 VMWare, Inc. 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
* THE AUTHORS 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.
*/
/**
* No-op dispatch table.
*
* This file defines a special dispatch table which is loaded with no-op
* functions.
*
* When there's no current rendering context, calling a GL function like
* glBegin() is a no-op. Apps should never normally do this. So as a
* debugging aid, each of the no-op functions will emit a warning to
* stderr if the MESA_DEBUG or LIBGL_DEBUG env var is set.
*/
#include "main/compiler.h"
#include "glapi/glapi.h"
static GLboolean WarnFlag = GL_FALSE;
static _glapi_warning_func warning_func;
/*
* Enable/disable printing of warning messages.
*/
PUBLIC void
_glapi_noop_enable_warnings(GLboolean enable)
{
WarnFlag = enable;
}
/*
* Register a callback function for reporting errors.
*/
PUBLIC void
_glapi_set_warning_func( _glapi_warning_func func )
{
warning_func = func;
}
static int
warn(const char *func)
{
#if !defined(_WIN32_WCE)
if ((WarnFlag || getenv("MESA_DEBUG") || getenv("LIBGL_DEBUG"))
&& warning_func) {
warning_func(NULL, "GL User Error: called without context: %s", func);
}
#endif
return 0;
}
#ifdef DEBUG
#define KEYWORD1 static
#define KEYWORD1_ALT static
#define KEYWORD2 GLAPIENTRY
#define NAME(func) NoOp##func
#define F NULL
#define DISPATCH(func, args, msg) \
warn(#func);
#define RETURN_DISPATCH(func, args, msg) \
warn(#func); return 0
#define TABLE_ENTRY(name) (_glapi_proc) NoOp##name
#else
static void
NoOpGeneric(void)
{
if ((WarnFlag || getenv("MESA_DEBUG") || getenv("LIBGL_DEBUG"))
&& warning_func) {
warning_func(NULL, "GL User Error: calling GL function");
}
}
#define TABLE_ENTRY(name) (_glapi_proc) NoOpGeneric
#endif
#define DISPATCH_TABLE_NAME __glapi_noop_table
#define UNUSED_TABLE_NAME __unused_noop_functions
static int NoOpUnused(void)
{
return warn("extension function");
}
#include "glapi/glapitemp.h"
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