/** * 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" #ifdef _WIN32 #define WIN32_LEAN_AND_MEAN #include #endif #include #include #include #include #include #include #include "AL/al.h" #include "AL/alc.h" #include "alc/context.h" #include "almalloc.h" #include "core/except.h" #include "core/logging.h" #include "opthelpers.h" #include "vector.h" bool TrapALError{false}; void ALCcontext::setError(ALenum errorCode, const char *msg, ...) { auto message = al::vector(256); va_list args, args2; va_start(args, msg); va_copy(args2, args); int msglen{std::vsnprintf(message.data(), message.size(), msg, args)}; if(msglen >= 0 && static_cast(msglen) >= message.size()) { message.resize(static_cast(msglen) + 1u); msglen = std::vsnprintf(message.data(), message.size(), msg, args2); } va_end(args2); va_end(args); if(msglen >= 0) msg = message.data(); else msg = ""; WARN("Error generated on context %p, code 0x%04x, \"%s\"\n", decltype(std::declval()){this}, errorCode, msg); if(TrapALError) { #ifdef _WIN32 /* DebugBreak will cause an exception if there is no debugger */ if(IsDebuggerPresent()) DebugBreak(); #elif defined(SIGTRAP) raise(SIGTRAP); #endif } ALenum curerr{AL_NO_ERROR}; mLastError.compare_exchange_strong(curerr, errorCode); } AL_API ALenum AL_APIENTRY alGetError(void) START_API_FUNC { ContextRef context{GetContextRef()}; if UNLIKELY(!context) { constexpr 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; } return context->mLastError.exchange(AL_NO_ERROR); } END_API_FUNC