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79 lines
2.1 KiB
79 lines
2.1 KiB
/**
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* OpenAL cross platform audio library
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* Copyright (C) 1999-2007 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 <cctype>
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#include <cstdlib>
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#include <cstring>
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#include "AL/al.h"
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#include "AL/alc.h"
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#include "alc/context.h"
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#include "alstring.h"
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#include "core/except.h"
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#include "opthelpers.h"
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AL_API ALboolean AL_APIENTRY alIsExtensionPresent(const ALchar *extName)
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START_API_FUNC
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{
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ContextRef context{GetContextRef()};
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if(unlikely(!context)) return AL_FALSE;
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if(!extName)
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SETERR_RETURN(context, AL_INVALID_VALUE, AL_FALSE, "NULL pointer");
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size_t len{strlen(extName)};
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const char *ptr{context->mExtensionList};
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while(ptr && *ptr)
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{
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if(al::strncasecmp(ptr, extName, len) == 0 && (ptr[len] == '\0' || isspace(ptr[len])))
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return AL_TRUE;
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if((ptr=strchr(ptr, ' ')) != nullptr)
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{
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do {
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++ptr;
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} while(isspace(*ptr));
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}
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}
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return AL_FALSE;
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}
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END_API_FUNC
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AL_API ALvoid* AL_APIENTRY alGetProcAddress(const ALchar *funcName)
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START_API_FUNC
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{
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if(!funcName) return nullptr;
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return alcGetProcAddress(nullptr, funcName);
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}
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END_API_FUNC
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AL_API ALenum AL_APIENTRY alGetEnumValue(const ALchar *enumName)
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START_API_FUNC
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{
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if(!enumName) return static_cast<ALenum>(0);
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return alcGetEnumValue(nullptr, enumName);
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}
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END_API_FUNC
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