| /* |
| * 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 "glapi/glapi_priv.h" |
| |
| |
| void |
| _glapi_noop_enable_warnings(unsigned char enable) |
| { |
| } |
| |
| void |
| _glapi_set_warning_func(_glapi_proc func) |
| { |
| } |
| |
| /* |
| * When GLAPIENTRY is __stdcall (i.e. Windows), the stack is popped by the |
| * callee making the number/type of arguments significant. |
| */ |
| #if defined(_WIN32) || defined(DEBUG) |
| |
| /** |
| * Called by each of the no-op GL entrypoints. |
| */ |
| static int |
| Warn(const char *func) |
| { |
| #if defined(DEBUG) && !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" |