aboutsummaryrefslogtreecommitdiffstats
path: root/Alc/backends/sndio.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'Alc/backends/sndio.cpp')
-rw-r--r--Alc/backends/sndio.cpp495
1 files changed, 0 insertions, 495 deletions
diff --git a/Alc/backends/sndio.cpp b/Alc/backends/sndio.cpp
deleted file mode 100644
index 587f67bb..00000000
--- a/Alc/backends/sndio.cpp
+++ /dev/null
@@ -1,495 +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 "backends/sndio.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <thread>
-#include <functional>
-
-#include "alcmain.h"
-#include "alu.h"
-#include "threads.h"
-#include "vector.h"
-#include "ringbuffer.h"
-
-#include <sndio.h>
-
-
-namespace {
-
-static const ALCchar sndio_device[] = "SndIO Default";
-
-
-struct SndioPlayback final : public BackendBase {
- SndioPlayback(ALCdevice *device) noexcept : BackendBase{device} { }
- ~SndioPlayback() override;
-
- int mixerProc();
-
- ALCenum open(const ALCchar *name) override;
- ALCboolean reset() override;
- ALCboolean start() override;
- void stop() override;
-
- sio_hdl *mSndHandle{nullptr};
-
- al::vector<ALubyte> mBuffer;
-
- std::atomic<bool> mKillNow{true};
- std::thread mThread;
-
- DEF_NEWDEL(SndioPlayback)
-};
-
-SndioPlayback::~SndioPlayback()
-{
- if(mSndHandle)
- sio_close(mSndHandle);
- mSndHandle = nullptr;
-}
-
-int SndioPlayback::mixerProc()
-{
- SetRTPriority();
- althrd_setname(MIXER_THREAD_NAME);
-
- const ALsizei frameSize{mDevice->frameSizeFromFmt()};
-
- while(!mKillNow.load(std::memory_order_acquire) &&
- mDevice->Connected.load(std::memory_order_acquire))
- {
- auto WritePtr = static_cast<ALubyte*>(mBuffer.data());
- size_t len{mBuffer.size()};
-
- lock();
- aluMixData(mDevice, WritePtr, len/frameSize);
- unlock();
- while(len > 0 && !mKillNow.load(std::memory_order_acquire))
- {
- size_t wrote{sio_write(mSndHandle, WritePtr, len)};
- if(wrote == 0)
- {
- ERR("sio_write failed\n");
- aluHandleDisconnect(mDevice, "Failed to write playback samples");
- break;
- }
-
- len -= wrote;
- WritePtr += wrote;
- }
- }
-
- return 0;
-}
-
-
-ALCenum SndioPlayback::open(const ALCchar *name)
-{
- if(!name)
- name = sndio_device;
- else if(strcmp(name, sndio_device) != 0)
- return ALC_INVALID_VALUE;
-
- mSndHandle = sio_open(nullptr, SIO_PLAY, 0);
- if(mSndHandle == nullptr)
- {
- ERR("Could not open device\n");
- return ALC_INVALID_VALUE;
- }
-
- mDevice->DeviceName = name;
- return ALC_NO_ERROR;
-}
-
-ALCboolean SndioPlayback::reset()
-{
- sio_par par;
- sio_initpar(&par);
-
- par.rate = mDevice->Frequency;
- par.pchan = ((mDevice->FmtChans != DevFmtMono) ? 2 : 1);
-
- switch(mDevice->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 = mDevice->UpdateSize;
- par.appbufsz = mDevice->BufferSize - mDevice->UpdateSize;
- if(!par.appbufsz) par.appbufsz = mDevice->UpdateSize;
-
- if(!sio_setpar(mSndHandle, &par) || !sio_getpar(mSndHandle, &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;
- }
-
- mDevice->Frequency = par.rate;
- mDevice->FmtChans = ((par.pchan==1) ? DevFmtMono : DevFmtStereo);
-
- if(par.bits == 8 && par.sig == 1)
- mDevice->FmtType = DevFmtByte;
- else if(par.bits == 8 && par.sig == 0)
- mDevice->FmtType = DevFmtUByte;
- else if(par.bits == 16 && par.sig == 1)
- mDevice->FmtType = DevFmtShort;
- else if(par.bits == 16 && par.sig == 0)
- mDevice->FmtType = DevFmtUShort;
- else if(par.bits == 32 && par.sig == 1)
- mDevice->FmtType = DevFmtInt;
- else if(par.bits == 32 && par.sig == 0)
- mDevice->FmtType = DevFmtUInt;
- else
- {
- ERR("Unhandled sample format: %s %u-bit\n", (par.sig?"signed":"unsigned"), par.bits);
- return ALC_FALSE;
- }
-
- SetDefaultChannelOrder(mDevice);
-
- mDevice->UpdateSize = par.round;
- mDevice->BufferSize = par.bufsz + par.round;
-
- mBuffer.resize(mDevice->UpdateSize * mDevice->frameSizeFromFmt());
- std::fill(mBuffer.begin(), mBuffer.end(), 0);
-
- return ALC_TRUE;
-}
-
-ALCboolean SndioPlayback::start()
-{
- if(!sio_start(mSndHandle))
- {
- ERR("Error starting playback\n");
- return ALC_FALSE;
- }
-
- try {
- mKillNow.store(false, std::memory_order_release);
- mThread = std::thread{std::mem_fn(&SndioPlayback::mixerProc), this};
- return ALC_TRUE;
- }
- catch(std::exception& e) {
- ERR("Could not create playback thread: %s\n", e.what());
- }
- catch(...) {
- }
- sio_stop(mSndHandle);
- return ALC_FALSE;
-}
-
-void SndioPlayback::stop()
-{
- if(mKillNow.exchange(true, std::memory_order_acq_rel) || !mThread.joinable())
- return;
- mThread.join();
-
- if(!sio_stop(mSndHandle))
- ERR("Error stopping device\n");
-}
-
-
-struct SndioCapture final : public BackendBase {
- SndioCapture(ALCdevice *device) noexcept : BackendBase{device} { }
- ~SndioCapture() override;
-
- int recordProc();
-
- ALCenum open(const ALCchar *name) override;
- ALCboolean start() override;
- void stop() override;
- ALCenum captureSamples(void *buffer, ALCuint samples) override;
- ALCuint availableSamples() override;
-
- sio_hdl *mSndHandle{nullptr};
-
- RingBufferPtr mRing;
-
- std::atomic<bool> mKillNow{true};
- std::thread mThread;
-
- DEF_NEWDEL(SndioCapture)
-};
-
-SndioCapture::~SndioCapture()
-{
- if(mSndHandle)
- sio_close(mSndHandle);
- mSndHandle = nullptr;
-}
-
-int SndioCapture::recordProc()
-{
- SetRTPriority();
- althrd_setname(RECORD_THREAD_NAME);
-
- const ALsizei frameSize{mDevice->frameSizeFromFmt()};
-
- while(!mKillNow.load(std::memory_order_acquire) &&
- mDevice->Connected.load(std::memory_order_acquire))
- {
- auto data = mRing->getWriteVector();
- size_t todo{data.first.len + data.second.len};
- if(todo == 0)
- {
- static char junk[4096];
- sio_read(mSndHandle, junk,
- minz(sizeof(junk)/frameSize, mDevice->UpdateSize)*frameSize);
- continue;
- }
-
- size_t total{0u};
- data.first.len *= frameSize;
- data.second.len *= frameSize;
- todo = minz(todo, mDevice->UpdateSize) * frameSize;
- while(total < todo)
- {
- if(!data.first.len)
- data.first = data.second;
-
- size_t got{sio_read(mSndHandle, data.first.buf, minz(todo-total, data.first.len))};
- if(!got)
- {
- aluHandleDisconnect(mDevice, "Failed to read capture samples");
- break;
- }
-
- data.first.buf += got;
- data.first.len -= got;
- total += got;
- }
- mRing->writeAdvance(total / frameSize);
- }
-
- return 0;
-}
-
-
-ALCenum SndioCapture::open(const ALCchar *name)
-{
- if(!name)
- name = sndio_device;
- else if(strcmp(name, sndio_device) != 0)
- return ALC_INVALID_VALUE;
-
- mSndHandle = sio_open(nullptr, SIO_REC, 0);
- if(mSndHandle == nullptr)
- {
- ERR("Could not open device\n");
- return ALC_INVALID_VALUE;
- }
-
- sio_par par;
- sio_initpar(&par);
-
- switch(mDevice->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(mDevice->FmtType));
- return ALC_INVALID_VALUE;
- }
- par.bits = par.bps * 8;
- par.le = SIO_LE_NATIVE;
- par.msb = SIO_LE_NATIVE ? 0 : 1;
- par.rchan = mDevice->channelsFromFmt();
- par.rate = mDevice->Frequency;
-
- par.appbufsz = maxu(mDevice->BufferSize, mDevice->Frequency/10);
- par.round = minu(par.appbufsz, mDevice->Frequency/40);
-
- mDevice->UpdateSize = par.round;
- mDevice->BufferSize = par.appbufsz;
-
- if(!sio_setpar(mSndHandle, &par) || !sio_getpar(mSndHandle, &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(!((mDevice->FmtType == DevFmtByte && par.bits == 8 && par.sig != 0) ||
- (mDevice->FmtType == DevFmtUByte && par.bits == 8 && par.sig == 0) ||
- (mDevice->FmtType == DevFmtShort && par.bits == 16 && par.sig != 0) ||
- (mDevice->FmtType == DevFmtUShort && par.bits == 16 && par.sig == 0) ||
- (mDevice->FmtType == DevFmtInt && par.bits == 32 && par.sig != 0) ||
- (mDevice->FmtType == DevFmtUInt && par.bits == 32 && par.sig == 0)) ||
- mDevice->channelsFromFmt() != (ALsizei)par.rchan ||
- mDevice->Frequency != par.rate)
- {
- ERR("Failed to set format %s %s %uhz, got %c%u %u-channel %uhz instead\n",
- DevFmtTypeString(mDevice->FmtType), DevFmtChannelsString(mDevice->FmtChans),
- mDevice->Frequency, par.sig?'s':'u', par.bits, par.rchan, par.rate);
- return ALC_INVALID_VALUE;
- }
-
- mRing = CreateRingBuffer(mDevice->BufferSize, par.bps*par.rchan, false);
- if(!mRing)
- {
- ERR("Failed to allocate %u-byte ringbuffer\n", mDevice->BufferSize*par.bps*par.rchan);
- return ALC_OUT_OF_MEMORY;
- }
-
- SetDefaultChannelOrder(mDevice);
-
- mDevice->DeviceName = name;
- return ALC_NO_ERROR;
-}
-
-ALCboolean SndioCapture::start()
-{
- if(!sio_start(mSndHandle))
- {
- ERR("Error starting playback\n");
- return ALC_FALSE;
- }
-
- try {
- mKillNow.store(false, std::memory_order_release);
- mThread = std::thread{std::mem_fn(&SndioCapture::recordProc), this};
- return ALC_TRUE;
- }
- catch(std::exception& e) {
- ERR("Could not create record thread: %s\n", e.what());
- }
- catch(...) {
- }
- sio_stop(mSndHandle);
- return ALC_FALSE;
-}
-
-void SndioCapture::stop()
-{
- if(mKillNow.exchange(true, std::memory_order_acq_rel) || !mThread.joinable())
- return;
- mThread.join();
-
- if(!sio_stop(mSndHandle))
- ERR("Error stopping device\n");
-}
-
-ALCenum SndioCapture::captureSamples(void *buffer, ALCuint samples)
-{
- mRing->read(buffer, samples);
- return ALC_NO_ERROR;
-}
-
-ALCuint SndioCapture::availableSamples()
-{ return mRing->readSpace(); }
-
-} // namespace
-
-BackendFactory &SndIOBackendFactory::getFactory()
-{
- static SndIOBackendFactory factory{};
- return factory;
-}
-
-bool SndIOBackendFactory::init()
-{ return true; }
-
-bool SndIOBackendFactory::querySupport(BackendType type)
-{ return (type == BackendType::Playback || type == BackendType::Capture); }
-
-void SndIOBackendFactory::probe(DevProbe type, std::string *outnames)
-{
- switch(type)
- {
- case DevProbe::Playback:
- case DevProbe::Capture:
- /* Includes null char. */
- outnames->append(sndio_device, sizeof(sndio_device));
- break;
- }
-}
-
-BackendPtr SndIOBackendFactory::createBackend(ALCdevice *device, BackendType type)
-{
- if(type == BackendType::Playback)
- return BackendPtr{new SndioPlayback{device}};
- if(type == BackendType::Capture)
- return BackendPtr{new SndioCapture{device}};
- return nullptr;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 19:16:48 +0000