/** * 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., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. * Or go to http://www.gnu.org/copyleft/lgpl.html */ #include "config.h" #include <sys/ioctl.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <stdlib.h> #include <stdio.h> #include <memory.h> #include <unistd.h> #include <errno.h> #include <math.h> #include "alMain.h" #include "alu.h" #include <sys/audioio.h> static const ALCchar solaris_device[] = "Solaris Default"; static const char *solaris_driver = "/dev/audio"; typedef struct { int fd; volatile int killNow; ALvoid *thread; ALubyte *mix_data; int data_size; } solaris_data; static ALuint SolarisProc(ALvoid *ptr) { ALCdevice *Device = (ALCdevice*)ptr; solaris_data *data = (solaris_data*)Device->ExtraData; ALint frameSize; int wrote; SetRTPriority(); frameSize = FrameSizeFromDevFmt(Device->FmtChans, Device->FmtType); while(!data->killNow && Device->Connected) { ALint len = data->data_size; ALubyte *WritePtr = data->mix_data; aluMixData(Device, WritePtr, len/frameSize); while(len > 0 && !data->killNow) { wrote = write(data->fd, WritePtr, len); if(wrote < 0) { if(errno != EAGAIN && errno != EWOULDBLOCK && errno != EINTR) { ERR("write failed: %s\n", strerror(errno)); ALCdevice_Lock(Device); aluHandleDisconnect(Device); ALCdevice_Unlock(Device); break; } Sleep(1); continue; } len -= wrote; WritePtr += wrote; } } return 0; } static ALCenum solaris_open_playback(ALCdevice *device, const ALCchar *deviceName) { solaris_data *data; if(!deviceName) deviceName = solaris_device; else if(strcmp(deviceName, solaris_device) != 0) return ALC_INVALID_VALUE; data = (solaris_data*)calloc(1, sizeof(solaris_data)); data->killNow = 0; data->fd = open(solaris_driver, O_WRONLY); if(data->fd == -1) { free(data); ERR("Could not open %s: %s\n", solaris_driver, strerror(errno)); return ALC_INVALID_VALUE; } device->DeviceName = strdup(deviceName); device->ExtraData = data; return ALC_NO_ERROR; } static void solaris_close_playback(ALCdevice *device) { solaris_data *data = (solaris_data*)device->ExtraData; close(data->fd); free(data); device->ExtraData = NULL; } static ALCboolean solaris_reset_playback(ALCdevice *device) { solaris_data *data = (solaris_data*)device->ExtraData; audio_info_t info; ALuint frameSize; int numChannels; AUDIO_INITINFO(&info); info.play.sample_rate = device->Frequency; if(device->FmtChans != DevFmtMono) device->FmtChans = DevFmtStereo; numChannels = ChannelsFromDevFmt(device->FmtChans); info.play.channels = numChannels; switch(device->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: device->FmtType = DevFmtShort; /* fall-through */ case DevFmtShort: info.play.precision = 16; info.play.encoding = AUDIO_ENCODING_LINEAR; break; } frameSize = numChannels * BytesFromDevFmt(device->FmtType); info.play.buffer_size = device->UpdateSize*device->NumUpdates * frameSize; if(ioctl(data->fd, AUDIO_SETINFO, &info) < 0) { ERR("ioctl failed: %s\n", strerror(errno)); return ALC_FALSE; } if(ChannelsFromDevFmt(device->FmtChans) != info.play.channels) { ERR("Could not set %d channels, got %d instead\n", ChannelsFromDevFmt(device->FmtChans), info.play.channels); return ALC_FALSE; } if(!((info.play.precision == 8 && info.play.encoding == AUDIO_ENCODING_LINEAR8 && device->FmtType == DevFmtUByte) || (info.play.precision == 8 && info.play.encoding == AUDIO_ENCODING_LINEAR && device->FmtType == DevFmtByte) || (info.play.precision == 16 && info.play.encoding == AUDIO_ENCODING_LINEAR && device->FmtType == DevFmtShort) || (info.play.precision == 32 && info.play.encoding == AUDIO_ENCODING_LINEAR && device->FmtType == DevFmtInt))) { ERR("Could not set %s samples, got %d (0x%x)\n", DevFmtTypeString(device->FmtType), info.play.precision, info.play.encoding); return ALC_FALSE; } device->Frequency = info.play.sample_rate; device->UpdateSize = (info.play.buffer_size/device->NumUpdates) + 1; SetDefaultChannelOrder(device); return ALC_TRUE; } static ALCboolean solaris_start_playback(ALCdevice *device) { solaris_data *data = (solaris_data*)device->ExtraData; data->data_size = device->UpdateSize * FrameSizeFromDevFmt(device->FmtChans, device->FmtType); data->mix_data = calloc(1, data->data_size); data->thread = StartThread(SolarisProc, device); if(data->thread == NULL) { free(data->mix_data); data->mix_data = NULL; return ALC_FALSE; } return ALC_TRUE; } static void solaris_stop_playback(ALCdevice *device) { solaris_data *data = (solaris_data*)device->ExtraData; if(!data->thread) return; data->killNow = 1; StopThread(data->thread); data->thread = NULL; data->killNow = 0; if(ioctl(data->fd, AUDIO_DRAIN) < 0) ERR("Error draining device: %s\n", strerror(errno)); free(data->mix_data); data->mix_data = NULL; } static const BackendFuncs solaris_funcs = { solaris_open_playback, solaris_close_playback, solaris_reset_playback, solaris_start_playback, solaris_stop_playback, NULL, NULL, NULL, NULL, NULL, NULL, ALCdevice_LockDefault, ALCdevice_UnlockDefault, ALCdevice_GetLatencyDefault }; ALCboolean alc_solaris_init(BackendFuncs *func_list) { ConfigValueStr("solaris", "device", &solaris_driver); *func_list = solaris_funcs; return ALC_TRUE; } void alc_solaris_deinit(void) { } void alc_solaris_probe(enum DevProbe type) { switch(type) { case ALL_DEVICE_PROBE: { #ifdef HAVE_STAT struct stat buf; if(stat(solaris_driver, &buf) == 0) #endif AppendAllDevicesList(solaris_device); } break; case CAPTURE_DEVICE_PROBE: break; } }