al/extension.cpp

   1 /**
   2  * OpenAL cross platform audio library
   3  * Copyright (C) 1999-2007 by authors.
   4  * This library is free software; you can redistribute it and/or
   5  *  modify it under the terms of the GNU Library General Public
   6  *  License as published by the Free Software Foundation; either
   7  *  version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  *  Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  *  License along with this library; if not, write to the
  16  *  Free Software Foundation, Inc.,
  17  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  * Or go to http://www.gnu.org/copyleft/lgpl.html
  19  */
  20
  21 #include "config.h"
  22
  23 #include <string_view>
  24 #include <vector>
  25
  26 #include "AL/al.h"
  27 #include "AL/alc.h"
  28
  29 #include "alc/context.h"
  30 #include "alc/inprogext.h"
  31 #include "alstring.h"
  32 #include "direct_defs.h"
  33 #include "opthelpers.h"
  34
  35
  36 AL_API DECL_FUNC1(ALboolean, alIsExtensionPresent, const ALchar*,extName)
  37 FORCE_ALIGN ALboolean AL_APIENTRY alIsExtensionPresentDirect(ALCcontext *context, const ALchar *extName) noexcept
  38 {
  39     if(!extName) UNLIKELY
  40     {
  41         context->setError(AL_INVALID_VALUE, "NULL pointer");
  42         return AL_FALSE;
  43     }
  44
  45     const std::string_view tofind{extName};
  46     for(std::string_view ext : context->mExtensions)
  47     {
  48         if(al::case_compare(ext, tofind) == 0)
  49             return AL_TRUE;
  50     }
  51
  52     return AL_FALSE;
  53 }
  54
  55
  56 AL_API ALvoid* AL_APIENTRY alGetProcAddress(const ALchar *funcName) noexcept
  57 {
  58     if(!funcName) return nullptr;
  59     return alcGetProcAddress(nullptr, funcName);
  60 }
  61
  62 FORCE_ALIGN ALvoid* AL_APIENTRY alGetProcAddressDirect(ALCcontext*, const ALchar *funcName) noexcept
  63 {
  64     if(!funcName) return nullptr;
  65     return alcGetProcAddress(nullptr, funcName);
  66 }
  67
  68 AL_API ALenum AL_APIENTRY alGetEnumValue(const ALchar *enumName) noexcept
  69 {
  70     if(!enumName) return ALenum{0};
  71     return alcGetEnumValue(nullptr, enumName);
  72 }
  73
  74 FORCE_ALIGN ALenum AL_APIENTRY alGetEnumValueDirect(ALCcontext*, const ALchar *enumName) noexcept
  75 {
  76     if(!enumName) return ALenum{0};
  77     return alcGetEnumValue(nullptr, enumName);
  78 }