diff options
Diffstat (limited to 'Alc/backends/solaris.cpp')
-rw-r--r-- | Alc/backends/solaris.cpp | 302 |
1 files changed, 0 insertions, 302 deletions
diff --git a/Alc/backends/solaris.cpp b/Alc/backends/solaris.cpp deleted file mode 100644 index 584f6e66..00000000 --- a/Alc/backends/solaris.cpp +++ /dev/null @@ -1,302 +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/solaris.h" - -#include <sys/ioctl.h> -#include <sys/types.h> -#include <sys/time.h> -#include <sys/stat.h> -#include <fcntl.h> -#include <stdlib.h> -#include <stdio.h> -#include <memory.h> -#include <unistd.h> -#include <errno.h> -#include <poll.h> -#include <math.h> - -#include <thread> -#include <functional> - -#include "alcmain.h" -#include "alu.h" -#include "alconfig.h" -#include "threads.h" -#include "vector.h" -#include "compat.h" - -#include <sys/audioio.h> - - -namespace { - -constexpr ALCchar solaris_device[] = "Solaris Default"; - -std::string solaris_driver{"/dev/audio"}; - - -struct SolarisBackend final : public BackendBase { - SolarisBackend(ALCdevice *device) noexcept : BackendBase{device} { } - ~SolarisBackend() override; - - int mixerProc(); - - ALCenum open(const ALCchar *name) override; - ALCboolean reset() override; - ALCboolean start() override; - void stop() override; - - int mFd{-1}; - - al::vector<ALubyte> mBuffer; - - std::atomic<bool> mKillNow{true}; - std::thread mThread; - - DEF_NEWDEL(SolarisBackend) -}; - -SolarisBackend::~SolarisBackend() -{ - if(mFd != -1) - close(mFd); - mFd = -1; -} - -int SolarisBackend::mixerProc() -{ - SetRTPriority(); - althrd_setname(MIXER_THREAD_NAME); - - const int frame_size{mDevice->frameSizeFromFmt()}; - - lock(); - while(!mKillNow.load(std::memory_order_acquire) && - mDevice->Connected.load(std::memory_order_acquire)) - { - pollfd pollitem{}; - pollitem.fd = mFd; - pollitem.events = POLLOUT; - - unlock(); - int pret{poll(&pollitem, 1, 1000)}; - lock(); - if(pret < 0) - { - if(errno == EINTR || errno == EAGAIN) - continue; - ERR("poll failed: %s\n", strerror(errno)); - aluHandleDisconnect(mDevice, "Failed to wait for playback buffer: %s", - strerror(errno)); - break; - } - else if(pret == 0) - { - WARN("poll timeout\n"); - continue; - } - - ALubyte *write_ptr{mBuffer.data()}; - size_t to_write{mBuffer.size()}; - aluMixData(mDevice, write_ptr, to_write/frame_size); - while(to_write > 0 && !mKillNow.load(std::memory_order_acquire)) - { - ssize_t wrote{write(mFd, write_ptr, to_write)}; - if(wrote < 0) - { - if(errno == EAGAIN || errno == EWOULDBLOCK || errno == EINTR) - continue; - ERR("write failed: %s\n", strerror(errno)); - aluHandleDisconnect(mDevice, "Failed to write playback samples: %s", - strerror(errno)); - break; - } - - to_write -= wrote; - write_ptr += wrote; - } - } - unlock(); - - return 0; -} - - -ALCenum SolarisBackend::open(const ALCchar *name) -{ - if(!name) - name = solaris_device; - else if(strcmp(name, solaris_device) != 0) - return ALC_INVALID_VALUE; - - mFd = ::open(solaris_driver.c_str(), O_WRONLY); - if(mFd == -1) - { - ERR("Could not open %s: %s\n", solaris_driver.c_str(), strerror(errno)); - return ALC_INVALID_VALUE; - } - - mDevice->DeviceName = name; - return ALC_NO_ERROR; -} - -ALCboolean SolarisBackend::reset() -{ - audio_info_t info; - AUDIO_INITINFO(&info); - - info.play.sample_rate = mDevice->Frequency; - - if(mDevice->FmtChans != DevFmtMono) - mDevice->FmtChans = DevFmtStereo; - ALsizei numChannels{mDevice->channelsFromFmt()}; - info.play.channels = numChannels; - - switch(mDevice->FmtType) - { - case DevFmtByte: - info.play.precision = 8; - info.play.encoding = AUDIO_ENCODING_LINEAR; - break; - case DevFmtUByte: - info.play.precision = 8; - info.play.encoding = AUDIO_ENCODING_LINEAR8; - break; - case DevFmtUShort: - case DevFmtInt: - case DevFmtUInt: - case DevFmtFloat: - mDevice->FmtType = DevFmtShort; - /* fall-through */ - case DevFmtShort: - info.play.precision = 16; - info.play.encoding = AUDIO_ENCODING_LINEAR; - break; - } - - ALsizei frameSize{numChannels * mDevice->bytesFromFmt()}; - info.play.buffer_size = mDevice->BufferSize * frameSize; - - if(ioctl(mFd, AUDIO_SETINFO, &info) < 0) - { - ERR("ioctl failed: %s\n", strerror(errno)); - return ALC_FALSE; - } - - if(mDevice->channelsFromFmt() != (ALsizei)info.play.channels) - { - ERR("Failed to set %s, got %u channels instead\n", DevFmtChannelsString(mDevice->FmtChans), - info.play.channels); - return ALC_FALSE; - } - - if(!((info.play.precision == 8 && info.play.encoding == AUDIO_ENCODING_LINEAR8 && mDevice->FmtType == DevFmtUByte) || - (info.play.precision == 8 && info.play.encoding == AUDIO_ENCODING_LINEAR && mDevice->FmtType == DevFmtByte) || - (info.play.precision == 16 && info.play.encoding == AUDIO_ENCODING_LINEAR && mDevice->FmtType == DevFmtShort) || - (info.play.precision == 32 && info.play.encoding == AUDIO_ENCODING_LINEAR && mDevice->FmtType == DevFmtInt))) - { - ERR("Could not set %s samples, got %d (0x%x)\n", DevFmtTypeString(mDevice->FmtType), - info.play.precision, info.play.encoding); - return ALC_FALSE; - } - - mDevice->Frequency = info.play.sample_rate; - mDevice->BufferSize = info.play.buffer_size / frameSize; - mDevice->UpdateSize = mDevice->BufferSize / 2; - - SetDefaultChannelOrder(mDevice); - - mBuffer.resize(mDevice->UpdateSize * mDevice->frameSizeFromFmt()); - std::fill(mBuffer.begin(), mBuffer.end(), 0); - - return ALC_TRUE; -} - -ALCboolean SolarisBackend::start() -{ - try { - mKillNow.store(false, std::memory_order_release); - mThread = std::thread{std::mem_fn(&SolarisBackend::mixerProc), this}; - return ALC_TRUE; - } - catch(std::exception& e) { - ERR("Could not create playback thread: %s\n", e.what()); - } - catch(...) { - } - return ALC_FALSE; -} - -void SolarisBackend::stop() -{ - if(mKillNow.exchange(true, std::memory_order_acq_rel) || !mThread.joinable()) - return; - mThread.join(); - - if(ioctl(mFd, AUDIO_DRAIN) < 0) - ERR("Error draining device: %s\n", strerror(errno)); -} - -} // namespace - -BackendFactory &SolarisBackendFactory::getFactory() -{ - static SolarisBackendFactory factory{}; - return factory; -} - -bool SolarisBackendFactory::init() -{ - if(auto devopt = ConfigValueStr(nullptr, "solaris", "device")) - solaris_driver = std::move(*devopt); - return true; -} - -bool SolarisBackendFactory::querySupport(BackendType type) -{ return type == BackendType::Playback; } - -void SolarisBackendFactory::probe(DevProbe type, std::string *outnames) -{ - switch(type) - { - case DevProbe::Playback: - { -#ifdef HAVE_STAT - struct stat buf; - if(stat(solaris_driver.c_str(), &buf) == 0) -#endif - outnames->append(solaris_device, sizeof(solaris_device)); - } - break; - - case DevProbe::Capture: - break; - } -} - -BackendPtr SolarisBackendFactory::createBackend(ALCdevice *device, BackendType type) -{ - if(type == BackendType::Playback) - return BackendPtr{new SolarisBackend{device}}; - return nullptr; -} |