Convert the SoundIO backend to C++

1 files changed, 0 insertions, 600 deletions

diff --git a/Alc/backends/sndio.c b/Alc/backends/sndio.c
deleted file mode 100644
index dd174cba..00000000
--- a/Alc/backends/sndio.c
+++ /dev/null
@@ -1,600 +0,0 @@
-/**
- * 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 <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "alMain.h"
-#include "alu.h"
-#include "threads.h"
-#include "ringbuffer.h"
-
-#include "backends/base.h"
-
-#include <sndio.h>
-
-
-static const ALCchar sndio_device[] = "SndIO Default";
-
-
-typedef struct SndioPlayback {
-    DERIVE_FROM_TYPE(ALCbackend);
-
-    struct sio_hdl *sndHandle;
-
-    ALvoid *mix_data;
-    ALsizei data_size;
-
-    ATOMIC(int) killNow;
-    althrd_t thread;
-} SndioPlayback;
-
-static int SndioPlayback_mixerProc(void *ptr);
-
-static void SndioPlayback_Construct(SndioPlayback *self, ALCdevice *device);
-static void SndioPlayback_Destruct(SndioPlayback *self);
-static ALCenum SndioPlayback_open(SndioPlayback *self, const ALCchar *name);
-static ALCboolean SndioPlayback_reset(SndioPlayback *self);
-static ALCboolean SndioPlayback_start(SndioPlayback *self);
-static void SndioPlayback_stop(SndioPlayback *self);
-static DECLARE_FORWARD2(SndioPlayback, ALCbackend, ALCenum, captureSamples, void*, ALCuint)
-static DECLARE_FORWARD(SndioPlayback, ALCbackend, ALCuint, availableSamples)
-static DECLARE_FORWARD(SndioPlayback, ALCbackend, ClockLatency, getClockLatency)
-static DECLARE_FORWARD(SndioPlayback, ALCbackend, void, lock)
-static DECLARE_FORWARD(SndioPlayback, ALCbackend, void, unlock)
-DECLARE_DEFAULT_ALLOCATORS(SndioPlayback)
-
-DEFINE_ALCBACKEND_VTABLE(SndioPlayback);
-
-
-static void SndioPlayback_Construct(SndioPlayback *self, ALCdevice *device)
-{
-    ALCbackend_Construct(STATIC_CAST(ALCbackend, self), device);
-    SET_VTABLE2(SndioPlayback, ALCbackend, self);
-
-    self->sndHandle = NULL;
-    self->mix_data = NULL;
-    ATOMIC_INIT(&self->killNow, AL_TRUE);
-}
-
-static void SndioPlayback_Destruct(SndioPlayback *self)
-{
-    if(self->sndHandle)
-        sio_close(self->sndHandle);
-    self->sndHandle = NULL;
-
-    al_free(self->mix_data);
-    self->mix_data = NULL;
-
-    ALCbackend_Destruct(STATIC_CAST(ALCbackend, self));
-}
-
-
-static int SndioPlayback_mixerProc(void *ptr)
-{
-    SndioPlayback *self = (SndioPlayback*)ptr;
-    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
-    ALsizei frameSize;
-    size_t wrote;
-
-    SetRTPriority();
-    althrd_setname(althrd_current(), MIXER_THREAD_NAME);
-
-    frameSize = FrameSizeFromDevFmt(device->FmtChans, device->FmtType, device->AmbiOrder);
-
-    while(!ATOMIC_LOAD(&self->killNow, almemory_order_acquire) &&
-          ATOMIC_LOAD(&device->Connected, almemory_order_acquire))
-    {
-        ALsizei len = self->data_size;
-        ALubyte *WritePtr = self->mix_data;
-
-        SndioPlayback_lock(self);
-        aluMixData(device, WritePtr, len/frameSize);
-        SndioPlayback_unlock(self);
-        while(len > 0 && !ATOMIC_LOAD(&self->killNow, almemory_order_acquire))
-        {
-            wrote = sio_write(self->sndHandle, WritePtr, len);
-            if(wrote == 0)
-            {
-                ERR("sio_write failed\n");
-                ALCdevice_Lock(device);
-                aluHandleDisconnect(device, "Failed to write playback samples");
-                ALCdevice_Unlock(device);
-                break;
-            }
-
-            len -= wrote;
-            WritePtr += wrote;
-        }
-    }
-
-    return 0;
-}
-
-
-static ALCenum SndioPlayback_open(SndioPlayback *self, const ALCchar *name)
-{
-    ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice;
-
-    if(!name)
-        name = sndio_device;
-    else if(strcmp(name, sndio_device) != 0)
-        return ALC_INVALID_VALUE;
-
-    self->sndHandle = sio_open(NULL, SIO_PLAY, 0);
-    if(self->sndHandle == NULL)
-    {
-        ERR("Could not open device\n");
-        return ALC_INVALID_VALUE;
-    }
-
-    alstr_copy_cstr(&device->DeviceName, name);
-
-    return ALC_NO_ERROR;
-}
-
-static ALCboolean SndioPlayback_reset(SndioPlayback *self)
-{
-    ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice;
-    struct sio_par par;
-
-    sio_initpar(&par);
-
-    par.rate = device->Frequency;
-    par.pchan = ((device->FmtChans != DevFmtMono) ? 2 : 1);
-
-    switch(device->FmtType)
-    {
-        case DevFmtByte:
-            par.bits = 8;
-            par.sig = 1;
-            break;
-        case DevFmtUByte:
-            par.bits = 8;
-            par.sig = 0;
-            break;
-        case DevFmtFloat:
-        case DevFmtShort:
-            par.bits = 16;
-            par.sig = 1;
-            break;
-        case DevFmtUShort:
-            par.bits = 16;
-            par.sig = 0;
-            break;
-        case DevFmtInt:
-            par.bits = 32;
-            par.sig = 1;
-            break;
-        case DevFmtUInt:
-            par.bits = 32;
-            par.sig = 0;
-            break;
-    }
-    par.le = SIO_LE_NATIVE;
-
-    par.round = device->UpdateSize;
-    par.appbufsz = device->UpdateSize * (device->NumUpdates-1);
-    if(!par.appbufsz) par.appbufsz = device->UpdateSize;
-
-    if(!sio_setpar(self->sndHandle, &par) || !sio_getpar(self->sndHandle, &par))
-    {
-        ERR("Failed to set device parameters\n");
-        return ALC_FALSE;
-    }
-
-    if(par.bits != par.bps*8)
-    {
-        ERR("Padded samples not supported (%u of %u bits)\n", par.bits, par.bps*8);
-        return ALC_FALSE;
-    }
-
-    device->Frequency = par.rate;
-    device->FmtChans = ((par.pchan==1) ? DevFmtMono : DevFmtStereo);
-
-    if(par.bits == 8 && par.sig == 1)
-        device->FmtType = DevFmtByte;
-    else if(par.bits == 8 && par.sig == 0)
-        device->FmtType = DevFmtUByte;
-    else if(par.bits == 16 && par.sig == 1)
-        device->FmtType = DevFmtShort;
-    else if(par.bits == 16 && par.sig == 0)
-        device->FmtType = DevFmtUShort;
-    else if(par.bits == 32 && par.sig == 1)
-        device->FmtType = DevFmtInt;
-    else if(par.bits == 32 && par.sig == 0)
-        device->FmtType = DevFmtUInt;
-    else
-    {
-        ERR("Unhandled sample format: %s %u-bit\n", (par.sig?"signed":"unsigned"), par.bits);
-        return ALC_FALSE;
-    }
-
-    device->UpdateSize = par.round;
-    device->NumUpdates = (par.bufsz/par.round) + 1;
-
-    SetDefaultChannelOrder(device);
-
-    return ALC_TRUE;
-}
-
-static ALCboolean SndioPlayback_start(SndioPlayback *self)
-{
-    ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice;
-
-    self->data_size = device->UpdateSize * FrameSizeFromDevFmt(
-        device->FmtChans, device->FmtType, device->AmbiOrder
-    );
-    al_free(self->mix_data);
-    self->mix_data = al_calloc(16, self->data_size);
-
-    if(!sio_start(self->sndHandle))
-    {
-        ERR("Error starting playback\n");
-        return ALC_FALSE;
-    }
-
-    ATOMIC_STORE(&self->killNow, AL_FALSE, almemory_order_release);
-    if(althrd_create(&self->thread, SndioPlayback_mixerProc, self) != althrd_success)
-    {
-        sio_stop(self->sndHandle);
-        return ALC_FALSE;
-    }
-
-    return ALC_TRUE;
-}
-
-static void SndioPlayback_stop(SndioPlayback *self)
-{
-    int res;
-
-    if(ATOMIC_EXCHANGE(&self->killNow, AL_TRUE, almemory_order_acq_rel))
-        return;
-    althrd_join(self->thread, &res);
-
-    if(!sio_stop(self->sndHandle))
-        ERR("Error stopping device\n");
-
-    al_free(self->mix_data);
-    self->mix_data = NULL;
-}
-
-
-typedef struct SndioCapture {
-    DERIVE_FROM_TYPE(ALCbackend);
-
-    struct sio_hdl *sndHandle;
-
-    ll_ringbuffer_t *ring;
-
-    ATOMIC(int) killNow;
-    althrd_t thread;
-} SndioCapture;
-
-static int SndioCapture_recordProc(void *ptr);
-
-static void SndioCapture_Construct(SndioCapture *self, ALCdevice *device);
-static void SndioCapture_Destruct(SndioCapture *self);
-static ALCenum SndioCapture_open(SndioCapture *self, const ALCchar *name);
-static DECLARE_FORWARD(SndioCapture, ALCbackend, ALCboolean, reset)
-static ALCboolean SndioCapture_start(SndioCapture *self);
-static void SndioCapture_stop(SndioCapture *self);
-static ALCenum SndioCapture_captureSamples(SndioCapture *self, void *buffer, ALCuint samples);
-static ALCuint SndioCapture_availableSamples(SndioCapture *self);
-static DECLARE_FORWARD(SndioCapture, ALCbackend, ClockLatency, getClockLatency)
-static DECLARE_FORWARD(SndioCapture, ALCbackend, void, lock)
-static DECLARE_FORWARD(SndioCapture, ALCbackend, void, unlock)
-DECLARE_DEFAULT_ALLOCATORS(SndioCapture)
-
-DEFINE_ALCBACKEND_VTABLE(SndioCapture);
-
-
-static void SndioCapture_Construct(SndioCapture *self, ALCdevice *device)
-{
-    ALCbackend_Construct(STATIC_CAST(ALCbackend, self), device);
-    SET_VTABLE2(SndioCapture, ALCbackend, self);
-
-    self->sndHandle = NULL;
-    self->ring = NULL;
-    ATOMIC_INIT(&self->killNow, AL_TRUE);
-}
-
-static void SndioCapture_Destruct(SndioCapture *self)
-{
-    if(self->sndHandle)
-        sio_close(self->sndHandle);
-    self->sndHandle = NULL;
-
-    ll_ringbuffer_free(self->ring);
-    self->ring = NULL;
-
-    ALCbackend_Destruct(STATIC_CAST(ALCbackend, self));
-}
-
-
-static int SndioCapture_recordProc(void* ptr)
-{
-    SndioCapture *self = (SndioCapture*)ptr;
-    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
-    ALsizei frameSize;
-
-    SetRTPriority();
-    althrd_setname(althrd_current(), RECORD_THREAD_NAME);
-
-    frameSize = FrameSizeFromDevFmt(device->FmtChans, device->FmtType, device->AmbiOrder);
-
-    while(!ATOMIC_LOAD(&self->killNow, almemory_order_acquire) &&
-          ATOMIC_LOAD(&device->Connected, almemory_order_acquire))
-    {
-        ll_ringbuffer_data_t data[2];
-        size_t total, todo;
-
-        ll_ringbuffer_get_write_vector(self->ring, data);
-        todo = data[0].len + data[1].len;
-        if(todo == 0)
-        {
-            static char junk[4096];
-            sio_read(self->sndHandle, junk, minz(sizeof(junk)/frameSize, device->UpdateSize)*frameSize);
-            continue;
-        }
-
-        total = 0;
-        data[0].len *= frameSize;
-        data[1].len *= frameSize;
-        todo = minz(todo, device->UpdateSize) * frameSize;
-        while(total < todo)
-        {
-            size_t got;
-
-            if(!data[0].len)
-                data[0] = data[1];
-
-            got = sio_read(self->sndHandle, data[0].buf, minz(todo-total, data[0].len));
-            if(!got)
-            {
-                SndioCapture_lock(self);
-                aluHandleDisconnect(device, "Failed to read capture samples");
-                SndioCapture_unlock(self);
-                break;
-            }
-
-            data[0].buf += got;
-            data[0].len -= got;
-            total += got;
-        }
-        ll_ringbuffer_write_advance(self->ring, total / frameSize);
-    }
-
-    return 0;
-}
-
-
-static ALCenum SndioCapture_open(SndioCapture *self, const ALCchar *name)
-{
-    ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice;
-    struct sio_par par;
-
-    if(!name)
-        name = sndio_device;
-    else if(strcmp(name, sndio_device) != 0)
-        return ALC_INVALID_VALUE;
-
-    self->sndHandle = sio_open(NULL, SIO_REC, 0);
-    if(self->sndHandle == NULL)
-    {
-        ERR("Could not open device\n");
-        return ALC_INVALID_VALUE;
-    }
-
-    sio_initpar(&par);
-
-    switch(device->FmtType)
-    {
-        case DevFmtByte:
-            par.bps = 1;
-            par.sig = 1;
-            break;
-        case DevFmtUByte:
-            par.bps = 1;
-            par.sig = 0;
-            break;
-        case DevFmtShort:
-            par.bps = 2;
-            par.sig = 1;
-            break;
-        case DevFmtUShort:
-            par.bps = 2;
-            par.sig = 0;
-            break;
-        case DevFmtInt:
-            par.bps = 4;
-            par.sig = 1;
-            break;
-        case DevFmtUInt:
-            par.bps = 4;
-            par.sig = 0;
-            break;
-        case DevFmtFloat:
-            ERR("%s capture samples not supported\n", DevFmtTypeString(device->FmtType));
-            return ALC_INVALID_VALUE;
-    }
-    par.bits = par.bps * 8;
-    par.le = SIO_LE_NATIVE;
-    par.msb = SIO_LE_NATIVE ? 0 : 1;
-    par.rchan = ChannelsFromDevFmt(device->FmtChans, device->AmbiOrder);
-    par.rate = device->Frequency;
-
-    par.appbufsz = maxu(device->UpdateSize*device->NumUpdates, (device->Frequency+9)/10);
-    par.round = clampu(par.appbufsz/device->NumUpdates, (device->Frequency+99)/100,
-                       (device->Frequency+19)/20);
-
-    device->UpdateSize = par.round;
-    device->NumUpdates = maxu(par.appbufsz/par.round, 1);
-
-    if(!sio_setpar(self->sndHandle, &par) || !sio_getpar(self->sndHandle, &par))
-    {
-        ERR("Failed to set device parameters\n");
-        return ALC_INVALID_VALUE;
-    }
-
-    if(par.bits != par.bps*8)
-    {
-        ERR("Padded samples not supported (%u of %u bits)\n", par.bits, par.bps*8);
-        return ALC_INVALID_VALUE;
-    }
-
-    if(!((device->FmtType == DevFmtByte && par.bits == 8 && par.sig != 0) ||
-         (device->FmtType == DevFmtUByte && par.bits == 8 && par.sig == 0) ||
-         (device->FmtType == DevFmtShort && par.bits == 16 && par.sig != 0) ||
-         (device->FmtType == DevFmtUShort && par.bits == 16 && par.sig == 0) ||
-         (device->FmtType == DevFmtInt && par.bits == 32 && par.sig != 0) ||
-         (device->FmtType == DevFmtUInt && par.bits == 32 && par.sig == 0)) ||
-       ChannelsFromDevFmt(device->FmtChans, device->AmbiOrder) != (ALsizei)par.rchan ||
-       device->Frequency != par.rate)
-    {
-        ERR("Failed to set format %s %s %uhz, got %c%u %u-channel %uhz instead\n",
-            DevFmtTypeString(device->FmtType), DevFmtChannelsString(device->FmtChans),
-            device->Frequency, par.sig?'s':'u', par.bits, par.rchan, par.rate);
-        return ALC_INVALID_VALUE;
-    }
-
-    self->ring = ll_ringbuffer_create(device->UpdateSize*device->NumUpdates, par.bps*par.rchan, 0);
-    if(!self->ring)
-    {
-        ERR("Failed to allocate %u-byte ringbuffer\n",
-            device->UpdateSize*device->NumUpdates*par.bps*par.rchan);
-        return ALC_OUT_OF_MEMORY;
-    }
-
-    SetDefaultChannelOrder(device);
-
-    alstr_copy_cstr(&device->DeviceName, name);
-
-    return ALC_NO_ERROR;
-}
-
-static ALCboolean SndioCapture_start(SndioCapture *self)
-{
-    if(!sio_start(self->sndHandle))
-    {
-        ERR("Error starting playback\n");
-        return ALC_FALSE;
-    }
-
-    ATOMIC_STORE(&self->killNow, AL_FALSE, almemory_order_release);
-    if(althrd_create(&self->thread, SndioCapture_recordProc, self) != althrd_success)
-    {
-        sio_stop(self->sndHandle);
-        return ALC_FALSE;
-    }
-
-    return ALC_TRUE;
-}
-
-static void SndioCapture_stop(SndioCapture *self)
-{
-    int res;
-
-    if(ATOMIC_EXCHANGE(&self->killNow, AL_TRUE, almemory_order_acq_rel))
-        return;
-    althrd_join(self->thread, &res);
-
-    if(!sio_stop(self->sndHandle))
-        ERR("Error stopping device\n");
-}
-
-static ALCenum SndioCapture_captureSamples(SndioCapture *self, void *buffer, ALCuint samples)
-{
-    ll_ringbuffer_read(self->ring, buffer, samples);
-    return ALC_NO_ERROR;
-}
-
-static ALCuint SndioCapture_availableSamples(SndioCapture *self)
-{
-    return ll_ringbuffer_read_space(self->ring);
-}
-
-
-typedef struct SndioBackendFactory {
-    DERIVE_FROM_TYPE(ALCbackendFactory);
-} SndioBackendFactory;
-#define SNDIOBACKENDFACTORY_INITIALIZER { { GET_VTABLE2(SndioBackendFactory, ALCbackendFactory) } }
-
-ALCbackendFactory *SndioBackendFactory_getFactory(void);
-
-static ALCboolean SndioBackendFactory_init(SndioBackendFactory *self);
-static DECLARE_FORWARD(SndioBackendFactory, ALCbackendFactory, void, deinit)
-static ALCboolean SndioBackendFactory_querySupport(SndioBackendFactory *self, ALCbackend_Type type);
-static void SndioBackendFactory_probe(SndioBackendFactory *self, enum DevProbe type, al_string *outnames);
-static ALCbackend* SndioBackendFactory_createBackend(SndioBackendFactory *self, ALCdevice *device, ALCbackend_Type type);
-DEFINE_ALCBACKENDFACTORY_VTABLE(SndioBackendFactory);
-
-ALCbackendFactory *SndioBackendFactory_getFactory(void)
-{
-    static SndioBackendFactory factory = SNDIOBACKENDFACTORY_INITIALIZER;
-    return STATIC_CAST(ALCbackendFactory, &factory);
-}
-
-static ALCboolean SndioBackendFactory_init(SndioBackendFactory* UNUSED(self))
-{
-    /* No dynamic loading */
-    return ALC_TRUE;
-}
-
-static ALCboolean SndioBackendFactory_querySupport(SndioBackendFactory* UNUSED(self), ALCbackend_Type type)
-{
-    if(type == ALCbackend_Playback || type == ALCbackend_Capture)
-        return ALC_TRUE;
-    return ALC_FALSE;
-}
-
-static void SndioBackendFactory_probe(SndioBackendFactory* UNUSED(self), enum DevProbe type, al_string *outnames)
-{
-    switch(type)
-    {
-        case ALL_DEVICE_PROBE:
-        case CAPTURE_DEVICE_PROBE:
-            alstr_append_range(outnames, sndio_device, sndio_device+sizeof(sndio_device));
-            break;
-    }
-}
-
-static ALCbackend* SndioBackendFactory_createBackend(SndioBackendFactory* UNUSED(self), ALCdevice *device, ALCbackend_Type type)
-{
-    if(type == ALCbackend_Playback)
-    {
-        SndioPlayback *backend;
-        NEW_OBJ(backend, SndioPlayback)(device);
-        if(!backend) return NULL;
-        return STATIC_CAST(ALCbackend, backend);
-    }
-    if(type == ALCbackend_Capture)
-    {
-        SndioCapture *backend;
-        NEW_OBJ(backend, SndioCapture)(device);
-        if(!backend) return NULL;
-        return STATIC_CAST(ALCbackend, backend);
-    }
-
-    return NULL;
-}