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