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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 "alc/context.h"
#include "alstring.h"
#include "core/except.h"
#include "opthelpers.h"
#ifdef ALSOFT_EAX
#include "eax_globals.h"
#include "eax_x_ram.h"
#endif // ALSOFT_EAX
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)};
#ifdef ALSOFT_EAX
if (al::strcasecmp(eax_v2_0_ext_name_1, extName) == 0 ||
al::strcasecmp(eax_v2_0_ext_name_2, extName) == 0 ||
al::strcasecmp(eax_v3_0_ext_name, extName) == 0 ||
al::strcasecmp(eax_v4_0_ext_name, extName) == 0 ||
al::strcasecmp(eax_v5_0_ext_name, extName) == 0)
{
const auto is_present = eax_g_is_enabled && context->eax_is_capable();
return is_present ? AL_TRUE : AL_FALSE;
}
if (al::strcasecmp(eax_x_ram_ext_name, extName) == 0)
{
const auto is_present = eax_g_is_enabled;
return is_present ? AL_TRUE : AL_FALSE;
}
#endif // ALSOFT_EAX
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;
#ifdef ALSOFT_EAX
if (al::strcasecmp(funcName, eax_eax_set_func_name) == 0)
{
if (!eax_g_is_enabled)
{
return nullptr;
}
ContextRef context{GetContextRef()};
if (!context || !context->eax_is_capable())
{
return nullptr;
}
return reinterpret_cast<ALvoid*>(EAXSet);
}
if (al::strcasecmp(funcName, eax_eax_get_func_name) == 0)
{
if (!eax_g_is_enabled)
{
return nullptr;
}
ContextRef context{GetContextRef()};
if (!context || !context->eax_is_capable())
{
return nullptr;
}
return reinterpret_cast<ALvoid*>(EAXGet);
}
if (al::strcasecmp(funcName, eax_eax_set_buffer_mode_func_name) == 0)
{
if (!eax_g_is_enabled)
{
return nullptr;
}
ContextRef context{GetContextRef()};
if (!context)
{
return nullptr;
}
return reinterpret_cast<ALvoid*>(EAXSetBufferMode);
}
if (al::strcasecmp(funcName, eax_eax_get_buffer_mode_func_name) == 0)
{
if (!eax_g_is_enabled)
{
return nullptr;
}
ContextRef context{GetContextRef()};
if (!context)
{
return nullptr;
}
return reinterpret_cast<ALvoid*>(EAXGetBufferMode);
}
#endif // ALSOFT_EAX
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);
#ifdef ALSOFT_EAX
if (eax_g_is_enabled)
{
struct Descriptor
{
const char* name;
ALenum value;
}; // Descriptor
constexpr Descriptor descriptors[] =
{
Descriptor{AL_EAX_RAM_SIZE_NAME, AL_EAX_RAM_SIZE},
Descriptor{AL_EAX_RAM_FREE_NAME, AL_EAX_RAM_FREE},
Descriptor{AL_STORAGE_AUTOMATIC_NAME, AL_STORAGE_AUTOMATIC},
Descriptor{AL_STORAGE_HARDWARE_NAME, AL_STORAGE_HARDWARE},
Descriptor{AL_STORAGE_ACCESSIBLE_NAME, AL_STORAGE_ACCESSIBLE},
}; // descriptors
for (const auto& descriptor : descriptors)
{
if (strcmp(descriptor.name, enumName) == 0)
{
return descriptor.value;
}
}
}
#endif // ALSOFT_EAX
return alcGetEnumValue(nullptr, enumName);
}
END_API_FUNC
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