134 lines
4.3 KiB
C
134 lines
4.3 KiB
C
/**
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* OpenAL cross platform audio library
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* Copyright (C) 2011 by Chris Robinson
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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 <stdlib.h>
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#include "alMain.h"
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#include "alu.h"
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#include "backends/base.h"
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typedef struct ALCloopback {
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DERIVE_FROM_TYPE(ALCbackend);
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} ALCloopback;
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static void ALCloopback_Construct(ALCloopback *self, ALCdevice *device);
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static DECLARE_FORWARD(ALCloopback, ALCbackend, void, Destruct)
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static ALCenum ALCloopback_open(ALCloopback *self, const ALCchar *name);
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static void ALCloopback_close(ALCloopback *self);
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static ALCboolean ALCloopback_reset(ALCloopback *self);
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static ALCboolean ALCloopback_start(ALCloopback *self);
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static void ALCloopback_stop(ALCloopback *self);
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static DECLARE_FORWARD2(ALCloopback, ALCbackend, ALCenum, captureSamples, void*, ALCuint)
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static DECLARE_FORWARD(ALCloopback, ALCbackend, ALCuint, availableSamples)
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static DECLARE_FORWARD(ALCloopback, ALCbackend, ALint64, getLatency)
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static DECLARE_FORWARD(ALCloopback, ALCbackend, void, lock)
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static DECLARE_FORWARD(ALCloopback, ALCbackend, void, unlock)
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DECLARE_DEFAULT_ALLOCATORS(ALCloopback)
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DEFINE_ALCBACKEND_VTABLE(ALCloopback);
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static void ALCloopback_Construct(ALCloopback *self, ALCdevice *device)
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{
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ALCbackend_Construct(STATIC_CAST(ALCbackend, self), device);
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SET_VTABLE2(ALCloopback, ALCbackend, self);
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}
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static ALCenum ALCloopback_open(ALCloopback *self, const ALCchar *name)
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{
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ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
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al_string_copy_cstr(&device->DeviceName, name);
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return ALC_NO_ERROR;
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}
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static void ALCloopback_close(ALCloopback* UNUSED(self))
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{
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}
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static ALCboolean ALCloopback_reset(ALCloopback *self)
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{
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SetDefaultWFXChannelOrder(STATIC_CAST(ALCbackend, self)->mDevice);
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return ALC_TRUE;
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}
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static ALCboolean ALCloopback_start(ALCloopback* UNUSED(self))
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{
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return ALC_TRUE;
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}
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static void ALCloopback_stop(ALCloopback* UNUSED(self))
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{
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}
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typedef struct ALCloopbackFactory {
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DERIVE_FROM_TYPE(ALCbackendFactory);
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} ALCloopbackFactory;
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#define ALCNULLBACKENDFACTORY_INITIALIZER { { GET_VTABLE2(ALCloopbackFactory, ALCbackendFactory) } }
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ALCbackendFactory *ALCloopbackFactory_getFactory(void);
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static ALCboolean ALCloopbackFactory_init(ALCloopbackFactory *self);
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static DECLARE_FORWARD(ALCloopbackFactory, ALCbackendFactory, void, deinit)
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static ALCboolean ALCloopbackFactory_querySupport(ALCloopbackFactory *self, ALCbackend_Type type);
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static void ALCloopbackFactory_probe(ALCloopbackFactory *self, enum DevProbe type);
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static ALCbackend* ALCloopbackFactory_createBackend(ALCloopbackFactory *self, ALCdevice *device, ALCbackend_Type type);
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DEFINE_ALCBACKENDFACTORY_VTABLE(ALCloopbackFactory);
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ALCbackendFactory *ALCloopbackFactory_getFactory(void)
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{
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static ALCloopbackFactory factory = ALCNULLBACKENDFACTORY_INITIALIZER;
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return STATIC_CAST(ALCbackendFactory, &factory);
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}
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static ALCboolean ALCloopbackFactory_init(ALCloopbackFactory* UNUSED(self))
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{
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return ALC_TRUE;
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}
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static ALCboolean ALCloopbackFactory_querySupport(ALCloopbackFactory* UNUSED(self), ALCbackend_Type type)
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{
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if(type == ALCbackend_Loopback)
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return ALC_TRUE;
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return ALC_FALSE;
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}
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static void ALCloopbackFactory_probe(ALCloopbackFactory* UNUSED(self), enum DevProbe UNUSED(type))
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{
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}
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static ALCbackend* ALCloopbackFactory_createBackend(ALCloopbackFactory* UNUSED(self), ALCdevice *device, ALCbackend_Type type)
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{
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if(type == ALCbackend_Loopback)
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{
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ALCloopback *backend;
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NEW_OBJ(backend, ALCloopback)(device);
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if(!backend) return NULL;
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return STATIC_CAST(ALCbackend, backend);
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}
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return NULL;
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}
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