Constify some variables
[openal-soft.git] / OpenAL32 / alError.c
blobb38d8dfed632e301e80787b6f38d2c45dcaedcc7
1 /**
2 * OpenAL cross platform audio library
3 * Copyright (C) 1999-2000 by authors.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 * Or go to http://www.gnu.org/copyleft/lgpl.html
21 #include "config.h"
23 #include <signal.h>
25 #ifdef HAVE_WINDOWS_H
26 #define WIN32_LEAN_AND_MEAN
27 #include <windows.h>
28 #endif
30 #include "alMain.h"
31 #include "AL/alc.h"
32 #include "alError.h"
34 ALboolean TrapALError = AL_FALSE;
36 ALvoid alSetError(ALCcontext *Context, ALenum errorCode)
38 ALenum curerr = AL_NO_ERROR;
39 if(TrapALError)
41 #ifdef _WIN32
42 /* DebugBreak will cause an exception if there is no debugger */
43 if(IsDebuggerPresent())
44 DebugBreak();
45 #elif defined(SIGTRAP)
46 raise(SIGTRAP);
47 #endif
49 ATOMIC_COMPARE_EXCHANGE_STRONG(ALenum, &Context->LastError, &curerr, errorCode);
52 AL_API ALenum AL_APIENTRY alGetError(void)
54 ALCcontext *Context;
55 ALenum errorCode;
57 Context = GetContextRef();
58 if(!Context)
60 if(TrapALError)
62 #ifdef _WIN32
63 if(IsDebuggerPresent())
64 DebugBreak();
65 #elif defined(SIGTRAP)
66 raise(SIGTRAP);
67 #endif
69 return AL_INVALID_OPERATION;
72 errorCode = ATOMIC_EXCHANGE(ALenum, &Context->LastError, AL_NO_ERROR);
74 ALCcontext_DecRef(Context);
76 return errorCode;