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/**
* OpenAL cross platform audio library
* Copyright (C) 1999-2000 by authors.
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
* Or go to http://www.gnu.org/copyleft/lgpl.html
*/
#include "config.h"
#include <signal.h>
#include <stdarg.h>
#ifdef HAVE_WINDOWS_H
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#endif
#include "alMain.h"
#include "AL/alc.h"
#include "alError.h"
ALboolean TrapALError = AL_FALSE;
void alSetError(ALCcontext *context, ALenum errorCode, const char *msg, ...)
{
ALenum curerr = AL_NO_ERROR;
char message[1024] = { 0 };
va_list args;
int msglen;
va_start(args, msg);
msglen = vsnprintf(message, sizeof(message), msg, args);
va_end(args);
if(msglen < 0 || (size_t)msglen >= sizeof(message))
{
message[sizeof(message)-1] = 0;
msglen = (int)strlen(message);
}
if(msglen > 0)
msg = message;
else
{
msg = "<internal error constructing message>";
msglen = (int)strlen(msg);
}
WARN("Error generated on context %p, code 0x%04x, \"%s\"\n",
context, errorCode, message);
if(TrapALError)
{
#ifdef _WIN32
/* DebugBreak will cause an exception if there is no debugger */
if(IsDebuggerPresent())
DebugBreak();
#elif defined(SIGTRAP)
raise(SIGTRAP);
#endif
}
ATOMIC_COMPARE_EXCHANGE_STRONG_SEQ(&context->LastError, &curerr, errorCode);
if((ATOMIC_LOAD(&context->EnabledEvts, almemory_order_relaxed)&EventType_Error))
{
ALbitfieldSOFT enabledevts;
almtx_lock(&context->EventLock);
enabledevts = ATOMIC_LOAD(&context->EnabledEvts, almemory_order_relaxed);
if((enabledevts&EventType_Error) && context->EventCb)
(*context->EventCb)(AL_EVENT_TYPE_ERROR_SOFT, 0, errorCode, msglen, msg,
context->EventParam);
almtx_unlock(&context->EventLock);
}
}
AL_API ALenum AL_APIENTRY alGetError(void)
{
ALCcontext *context;
ALenum errorCode;
context = GetContextRef();
if(!context)
{
const ALenum deferror = AL_INVALID_OPERATION;
WARN("Querying error state on null context (implicitly 0x%04x)\n", deferror);
if(TrapALError)
{
#ifdef _WIN32
if(IsDebuggerPresent())
DebugBreak();
#elif defined(SIGTRAP)
raise(SIGTRAP);
#endif
}
return deferror;
}
errorCode = ATOMIC_EXCHANGE_SEQ(&context->LastError, AL_NO_ERROR);
ALCcontext_DecRef(context);
return errorCode;
}
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