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