/* * 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. */ #ifdef HAVE_DIX_CONFIG_H #include <dix-config.h> #include "glapi/mesa.h" #else #include "main/compiler.h" #include "main/glheader.h" #endif #include "glapi/glapi.h" /* * These stubs are kept so that the old DRI drivers still load. */ PUBLIC void _glapi_noop_enable_warnings(GLboolean enable); PUBLIC void _glapi_set_warning_func(_glapi_proc func); void _glapi_noop_enable_warnings(GLboolean enable) { } void _glapi_set_warning_func(_glapi_proc func) { } #ifdef DEBUG /** * Called by each of the no-op GL entrypoints. */ static int Warn(const char *func) { #if !defined(_WIN32_WCE) if (getenv("MESA_DEBUG") || getenv("LIBGL_DEBUG")) { fprintf(stderr, "GL User Error: gl%s called without a rendering context\n", func); } #endif return 0; } /** * This is called if the user somehow calls an unassigned GL dispatch function. */ static GLint NoOpUnused(void) { return Warn(" function"); } /* * Defines for the glapitemp.h functions. */ #define KEYWORD1 static #define KEYWORD1_ALT static #define KEYWORD2 GLAPIENTRY #define NAME(func) NoOp##func #define DISPATCH(func, args, msg) Warn(#func); #define RETURN_DISPATCH(func, args, msg) Warn(#func); return 0 /* * Defines for the table of no-op entry points. */ #define TABLE_ENTRY(name) (_glapi_proc) NoOp##name #else static int NoOpGeneric(void) { #if !defined(_WIN32_WCE) if (getenv("MESA_DEBUG") || getenv("LIBGL_DEBUG")) { fprintf(stderr, "GL User Error: calling GL function without a rendering context\n"); } #endif return 0; } #define TABLE_ENTRY(name) (_glapi_proc) NoOpGeneric #endif #define DISPATCH_TABLE_NAME __glapi_noop_table #define UNUSED_TABLE_NAME __unused_noop_functions #include "glapi/glapitemp.h"