axmol/3rdparty/openal/al/extension.cpp

80 lines
2.3 KiB
C++

/**
* 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 "alc/context.h"
#include "alstring.h"
#include "core/except.h"
#include "direct_defs.h"
#include "opthelpers.h"
AL_API DECL_FUNC1(ALboolean, alIsExtensionPresent, const ALchar*)
FORCE_ALIGN ALboolean AL_APIENTRY alIsExtensionPresentDirect(ALCcontext *context, const ALchar *extName) noexcept
{
if(!extName) UNLIKELY
{
context->setError(AL_INVALID_VALUE, "NULL pointer");
return AL_FALSE;
}
size_t len{strlen(extName)};
for(std::string_view ext : context->mExtensions)
{
if(len == ext.length() && al::strncasecmp(ext.data(), extName, len) == 0)
return AL_TRUE;
}
return AL_FALSE;
}
AL_API ALvoid* AL_APIENTRY alGetProcAddress(const ALchar *funcName) noexcept
{
if(!funcName) return nullptr;
return alcGetProcAddress(nullptr, funcName);
}
FORCE_ALIGN ALvoid* AL_APIENTRY alGetProcAddressDirect(ALCcontext*, const ALchar *funcName) noexcept
{
if(!funcName) return nullptr;
return alcGetProcAddress(nullptr, funcName);
}
AL_API ALenum AL_APIENTRY alGetEnumValue(const ALchar *enumName) noexcept
{
if(!enumName) return static_cast<ALenum>(0);
return alcGetEnumValue(nullptr, enumName);
}
FORCE_ALIGN ALenum AL_APIENTRY alGetEnumValueDirect(ALCcontext*, const ALchar *enumName) noexcept
{
if(!enumName) return static_cast<ALenum>(0);
return alcGetEnumValue(nullptr, enumName);
}