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author | marha <marha@users.sourceforge.net> | 2010-04-12 09:53:17 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2010-04-12 09:53:17 +0000 |
commit | 29b86f9852b2b7ecc31cdfee56679537e40bc6e2 (patch) | |
tree | 1e6ec8ccf2dbf773260a1953b8e13c49f9b7c5f5 /mesalib/src/mesa/glapi/glapi_nop.c | |
parent | 529236591df7366479a6fac30b387667678fd1ba (diff) | |
download | vcxsrv-29b86f9852b2b7ecc31cdfee56679537e40bc6e2.tar.gz vcxsrv-29b86f9852b2b7ecc31cdfee56679537e40bc6e2.tar.bz2 vcxsrv-29b86f9852b2b7ecc31cdfee56679537e40bc6e2.zip |
svn merge -r524:HEAD "^/branches/released" .
Diffstat (limited to 'mesalib/src/mesa/glapi/glapi_nop.c')
-rw-r--r-- | mesalib/src/mesa/glapi/glapi_nop.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/mesalib/src/mesa/glapi/glapi_nop.c b/mesalib/src/mesa/glapi/glapi_nop.c new file mode 100644 index 000000000..df9c58728 --- /dev/null +++ b/mesalib/src/mesa/glapi/glapi_nop.c @@ -0,0 +1,114 @@ +/* + * 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" + +#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" |