OpenAL32/alError.c

   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.
   8  *
   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.
  13  *
  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
  19  */
  20
  21 #include "config.h"
  22
  23 #include <signal.h>
  24
  25 #ifdef HAVE_WINDOWS_H
  26 #define WIN32_LEAN_AND_MEAN
  27 #include <windows.h>
  28 #endif
  29
  30 #include "alMain.h"
  31 #include "AL/alc.h"
  32 #include "alError.h"
  33
  34 ALboolean TrapALError = AL_FALSE;
  35
  36 ALvoid alSetError(ALCcontext *context, ALenum errorCode, ALuint objid, const char *msg)
  37 {
  38     ALenum curerr = AL_NO_ERROR;
  39
  40     WARN("Error generated on context %p, code 0x%04x, object %u, \"%s\"\n",
  41          context, errorCode, objid, msg);
  42     if(TrapALError)
  43     {
  44 #ifdef _WIN32
  45         /* DebugBreak will cause an exception if there is no debugger */
  46         if(IsDebuggerPresent())
  47             DebugBreak();
  48 #elif defined(SIGTRAP)
  49         raise(SIGTRAP);
  50 #endif
  51     }
  52
  53     ATOMIC_COMPARE_EXCHANGE_STRONG_SEQ(&context->LastError, &curerr, errorCode);
  54     if((context->EnabledEvts&EventType_Error))
  55     {
  56         almtx_lock(&context->EventLock);
  57         if((context->EnabledEvts&EventType_Error) && context->EventCb)
  58             (*context->EventCb)(AL_EVENT_TYPE_ERROR_SOFT, objid, errorCode, strlen(msg), msg,
  59                                 context->EventParam);
  60         almtx_unlock(&context->EventLock);
  61     }
  62 }
  63
  64 AL_API ALenum AL_APIENTRY alGetError(void)
  65 {
  66     ALCcontext *context;
  67     ALenum errorCode;
  68
  69     context = GetContextRef();
  70     if(!context)
  71     {
  72         const ALenum deferror = AL_INVALID_OPERATION;
  73         WARN("Querying error state on null context (implicitly 0x%04x)\n", deferror);
  74         if(TrapALError)
  75         {
  76 #ifdef _WIN32
  77             if(IsDebuggerPresent())
  78                 DebugBreak();
  79 #elif defined(SIGTRAP)
  80             raise(SIGTRAP);
  81 #endif
  82         }
  83         return deferror;
  84     }
  85
  86     errorCode = ATOMIC_EXCHANGE_SEQ(&context->LastError, AL_NO_ERROR);
  87
  88     ALCcontext_DecRef(context);
  89
  90     return errorCode;
  91 }