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authorMichele Calgaro <michele.calgaro@yahoo.it>2020-12-06 19:28:06 +0900
committerMichele Calgaro <michele.calgaro@yahoo.it>2020-12-06 19:28:49 +0900
commit247750abcbf6760bbc52aa5d64fc375d6fbee8a3 (patch)
tree86e029a960ddd599edbeee8dddf70e87ee314e23 /flow/audioiocsl.cc
parent595ad58e25c5d0f0c512194f66708f99e5bc1527 (diff)
downloadarts-247750abcbf6760bbc52aa5d64fc375d6fbee8a3.tar.gz
arts-247750abcbf6760bbc52aa5d64fc375d6fbee8a3.zip
Renaming of files in preparation for code style tools.
Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it> (cherry picked from commit 00d4f92b717fbcbed6f9eee361975d6ee5380d59)
Diffstat (limited to 'flow/audioiocsl.cc')
-rw-r--r--flow/audioiocsl.cc640
1 files changed, 0 insertions, 640 deletions
diff --git a/flow/audioiocsl.cc b/flow/audioiocsl.cc
deleted file mode 100644
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--- a/flow/audioiocsl.cc
+++ /dev/null
@@ -1,640 +0,0 @@
- /*
-
- Copyright (C) 2000-2002 Stefan Westerfeld
- stefan@space.twc.de
-
- 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; see the file COPYING.LIB. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA.
-
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-/**
- * only compile 'csl' AudioIO class if libcsl is present
- */
-#ifdef HAVE_LIBCSL
-#include <csl/csl.h>
-
-/* g_newa */
-#include <gsl/gsldefs.h>
-
-#include <vector>
-
-#include "audioio.h"
-#include "audiosubsys.h"
-#include "debug.h"
-#include "dispatcher.h"
-#include "iomanager.h"
-
-namespace Arts {
-
-class AudioIOCSL : public AudioIO,
- public IONotify
-{
-protected:
- CslPcmStream *inputStream, *outputStream;
- CslDriver *cslDriver;
- int requestedFragmentSize;
- int requestedFragmentCount;
- const char *cslDriverName;
-
- std::vector<CslPollFD> cslFds, cslOldFds;
- int csl2iomanager(int cslTypes);
- void updateFds();
-
- void notifyIO(int fd, int types);
- static void handleRead(void *user_data, CslPcmStream *stream);
- static void handleWrite(void *user_data, CslPcmStream *stream);
-
-public:
- AudioIOCSL(const char *driverName = 0);
-
- void setParam(AudioParam param, int& value);
- int getParam(AudioParam param);
-
- bool open();
- void close();
- int read(void *buffer, int size);
- int write(void *buffer, int size);
-};
-
-REGISTER_AUDIO_IO(AudioIOCSL,"csl","Common Sound Layer");
-
-class AudioIOCSLFactory : public AudioIOFactory {
-protected:
- const char *driverName;
- std::string _name;
- std::string _fullName;
-
-public:
- AudioIOCSLFactory(const char *driverName)
- : driverName(driverName)
- {
- _name = "csl-";
- _name += driverName;
-
- _fullName = "Common Sound Layer (";
- _fullName += driverName;
- _fullName += ")";
- }
- virtual ~AudioIOCSLFactory()
- {
- }
- AudioIO *createAudioIO() { return new AudioIOCSL(driverName); }
- virtual const char *name() { return _name.c_str(); }
- virtual const char *fullName() { return _fullName.c_str(); }
-};
-
-static class AudioIOCSLInit {
-protected:
- std::list<AudioIOCSLFactory *> factories;
-
-public:
- AudioIOCSLInit()
- {
- unsigned int i,n;
- const char **drivers = csl_list_drivers(&n);
-
- for(i = 0; i < n; i++)
- factories.push_back(new AudioIOCSLFactory(drivers[i]));
- }
- ~AudioIOCSLInit()
- {
- std::list<AudioIOCSLFactory *>::iterator i;
- for(i = factories.begin(); i != factories.end(); i++)
- delete (*i);
-
- factories.clear();
- }
-} aci;
-
-};
-
-using namespace std;
-using namespace Arts;
-
-AudioIOCSL::AudioIOCSL(const char *driverName)
- : cslDriverName(driverName)
-{
- /*
- * default parameters
- */
- param(samplingRate) = 44100;
- paramStr(deviceName) = "todo";
- requestedFragmentSize = param(fragmentSize) = 1024;
- requestedFragmentCount = param(fragmentCount) = 7;
- param(channels) = 2;
- param(direction) = 2;
-
-#ifdef WORDS_BIGENDIAN
- param(format) = 17;
-#else
- param(format) = 16;
-#endif
-}
-
-bool AudioIOCSL::open()
-{
- string& errorMsg = paramStr(lastError);
- string& _deviceName = paramStr(deviceName);
- int& _channels = param(channels);
- int& _fragmentSize = param(fragmentSize);
- int& _fragmentCount = param(fragmentCount);
- int& _samplingRate = param(samplingRate);
- int& _format = param(format);
- int fmt = 0;
- char *env = 0;
-
- if(cslDriverName && strcmp(cslDriverName, "arts") == 0)
- env = arts_strdup_printf("ARTS_SERVER=%s",_deviceName.c_str());
-
- if(env)
- {
- putenv(env);
- arts_debug("AudioIOCsl: set %s\n",env);
- }
-
- CslErrorType error;
- error = csl_driver_init(cslDriverName, &cslDriver); /* choose backend */
-
- if(env)
- {
- putenv("ARTS_SERVER");
- free(env);
- }
-
- if (error)
- {
- errorMsg = "unable to initialize CSL driver: ";
- errorMsg += csl_strerror(error);
- return false;
- }
-
- if(_format == 8)
- fmt = CSL_PCM_FORMAT_U8;
- else if(_format == 16)
- fmt = CSL_PCM_FORMAT_S16_LE;
- else if(_format == 17)
- fmt = CSL_PCM_FORMAT_S16_BE;
-
- inputStream = outputStream = 0;
- if(param(direction) & directionRead)
- {
- /* open PCM output stream */
- error = csl_pcm_open_output(cslDriver,
- "artsd output",
- _samplingRate,
- _channels,
- fmt, &inputStream);
- if (error)
- {
- errorMsg = "failed to open CSL input stream: ";
- errorMsg += csl_strerror(error);
- return false;
- }
- csl_pcm_set_callback(inputStream, handleRead, 0, 0);
- }
- if(param(direction) & directionWrite)
- {
- /* open PCM output stream */
- error = csl_pcm_open_output(cslDriver,
- "artsd output",
- _samplingRate,
- _channels,
- fmt, &outputStream);
- if (error)
- {
- close();
-
- errorMsg = "failed to open CSL output stream: ";
- errorMsg += csl_strerror(error);
- return false;
- }
- csl_pcm_set_callback(outputStream, handleWrite, 0, 0);
- }
-#if 0
- if (_format && (ossBits(gotFormat) != ossBits(requestedFormat)))
- {
- char details[80];
- sprintf(details," (_format = %d, asked driver to give %d, got %d)",
- _format, requestedFormat, gotFormat);
-
- _error = "Can't set playback format";
- _error += details;
-
- close();
- return false;
- }
-
- if(gotFormat == AFMT_U8)
- _format = 8;
- else if(gotFormat == AFMT_S16_LE)
- _format = 16;
- else if(gotFormat == AFMT_S16_BE)
- _format = 17;
- else
- {
- char details[80];
- sprintf(details," (_format = %d, asked driver to give %d, got %d)",
- _format, requestedFormat, gotFormat);
-
- _error = "unknown format given by driver";
- _error += details;
-
- close();
- return false;
- }
-
-
- int stereo=-1; /* 0=mono, 1=stereo */
-
- if(_channels == 1)
- {
- stereo = 0;
- }
- if(_channels == 2)
- {
- stereo = 1;
- }
-
- if(stereo == -1)
- {
- _error = "internal error; set channels to 1 (mono) or 2 (stereo)";
-
- close();
- return false;
- }
-
- int requeststereo = stereo;
-
- if (ioctl(audio_fd, SNDCTL_DSP_STEREO, &stereo)==-1)
- {
- _error = "SNDCTL_DSP_STEREO failed - ";
- _error += strerror(errno);
-
- close();
- return false;
- }
-
- if (requeststereo != stereo)
- {
- _error = "audio device doesn't support number of requested channels";
-
- close();
- return false;
- }
-
- int speed = _samplingRate;
-
- if (ioctl(audio_fd, SNDCTL_DSP_SPEED, &speed)==-1)
- {
- _error = "SNDCTL_DSP_SPEED failed - ";
- _error += strerror(errno);
-
- close();
- return false;
- }
-
- /*
- * Some soundcards seem to be able to only supply "nearly" the requested
- * sampling rate, especially PAS 16 cards seem to quite radical supplying
- * something different than the requested sampling rate ;)
- *
- * So we have a quite large tolerance here (when requesting 44100 Hz, it
- * will accept anything between 38690 Hz and 49510 Hz). Most parts of the
- * aRts code will do resampling where appropriate, so it shouldn't affect
- * sound quality.
- */
- int tolerance = _samplingRate/10+1000;
-
- if (abs(speed-_samplingRate) > tolerance)
- {
- _error = "can't set requested samplingrate";
-
- char details[80];
- sprintf(details," (requested rate %d, got rate %d)",
- _samplingRate, speed);
- _error += details;
-
- close();
- return false;
- }
- _samplingRate = speed;
-
- /*
- * set the fragment settings to what the user requested
- */
-
- _fragmentSize = requestedFragmentSize;
- _fragmentCount = requestedFragmentCount;
-
- /*
- * lower 16 bits are the fragment size (as 2^S)
- * higher 16 bits are the number of fragments
- */
- int frag_arg = 0;
-
- int size = _fragmentSize;
- while(size > 1) { size /= 2; frag_arg++; }
- frag_arg += (_fragmentCount << 16);
- if(ioctl(audio_fd, SNDCTL_DSP_SETFRAGMENT, &frag_arg) == -1)
- {
- char buffer[1024];
- _error = "can't set requested fragments settings";
- sprintf(buffer,"size%d:count%d\n",_fragmentSize,_fragmentCount);
- close();
- return false;
- }
-
- /*
- * now see what we really got as cards aren't required to supply what
- * we asked for
- */
- audio_buf_info info;
- if(ioctl(audio_fd,SNDCTL_DSP_GETOSPACE, &info) == -1)
- {
- _error = "can't retrieve fragment settings";
- close();
- return false;
- }
-
- // update fragment settings with what we got
- _fragmentSize = info.fragsize;
- _fragmentCount = info.fragstotal;
-
- artsdebug("buffering: %d fragments with %d bytes "
- "(audio latency is %1.1f ms)", _fragmentCount, _fragmentSize,
- (float)(_fragmentSize*_fragmentCount) /
- (float)(2.0 * _samplingRate * _channels)*1000.0);
-
- /*
- * Workaround for broken kernel drivers: usually filling up the audio
- * buffer is _only_ required if _fullDuplex is true. However, there
- * are kernel drivers around (especially everything related to ES1370/1371)
- * which will not trigger select()ing the file descriptor unless we have
- * written something first.
- */
- char *zbuffer = (char *)calloc(sizeof(char), _fragmentSize);
- if(_format == 8)
- for(int zpos = 0; zpos < _fragmentSize; zpos++)
- zbuffer[zpos] |= 0x80;
-
- for(int fill = 0; fill < _fragmentCount; fill++)
- {
- int len = ::write(audio_fd,zbuffer,_fragmentSize);
- if(len != _fragmentSize)
- {
- arts_debug("AudioIOCSL: failed prefilling audio buffer (might cause synchronization problems in conjunction with full duplex)");
- fill = _fragmentCount+1;
- }
- }
- free(zbuffer);
-
- /*
- * Triggering - the original aRts code did this for full duplex:
- *
- * - stop audio i/o using SETTRIGGER(~(PCM_ENABLE_INPUT|PCM_ENABLE_OUTPUT))
- * - fill buffer (see zbuffer code two lines above)
- * - start audio i/o using SETTRIGGER(PCM_ENABLE_INPUT|PCM_ENABLE_OUTPUT)
- *
- * this should guarantee synchronous start of input/output. Today, it
- * seems there are too many broken drivers around for this.
- */
-
- if(device_caps & DSP_CAP_TRIGGER)
- {
- int enable_bits = 0;
-
- if(param(direction) & 1) enable_bits |= PCM_ENABLE_INPUT;
- if(param(direction) & 2) enable_bits |= PCM_ENABLE_OUTPUT;
-
- if(ioctl(audio_fd,SNDCTL_DSP_SETTRIGGER, &enable_bits) == -1)
- {
- _error = "can't start sound i/o";
-
- close();
- return false;
- }
- }
-#endif
- updateFds();
- return true;
-}
-
-void AudioIOCSL::close()
-{
- if(inputStream)
- {
- csl_pcm_close(inputStream);
- inputStream = 0;
- }
- if(outputStream)
- {
- csl_pcm_close(outputStream);
- outputStream = 0;
- }
- updateFds();
-}
-
-void AudioIOCSL::setParam(AudioParam p, int& value)
-{
- switch(p)
- {
- case fragmentSize:
- param(p) = requestedFragmentSize = value;
- break;
- case fragmentCount:
- param(p) = requestedFragmentCount = value;
- break;
- default:
- param(p) = value;
- break;
- }
-}
-
-int AudioIOCSL::getParam(AudioParam p)
-{
- CslErrorType error;
- CslPcmStatus status;
-
- switch(p)
- {
- case canRead:
- error = csl_pcm_get_status (inputStream, &status);
- if (error) /* FIXME */
- arts_fatal("unable to obtain csl stream status: %s",
- csl_strerror (error));
-
- updateFds();
- return status.n_bytes_available;
- break;
-
- case canWrite:
- error = csl_pcm_get_status(outputStream, &status);
- if (error) /* FIXME */
- arts_fatal("unable to obtain csl stream status: %s",
- csl_strerror (error));
-
- updateFds();
- return status.n_bytes_available;
- break;
-
- case autoDetect:
- /* CSL is pretty experimental currently */
- return 1;
- break;
-
- default:
- return param(p);
- break;
- }
-}
-
-int AudioIOCSL::read(void *buffer, int size)
-{
- arts_assert(inputStream != 0);
-
- int result = csl_pcm_read(inputStream, size, buffer);
- updateFds();
-
- return result;
-}
-
-void AudioIOCSL::handleRead(void *, CslPcmStream *)
-{
- AudioSubSystem::the()->handleIO(AudioSubSystem::ioRead);
-}
-
-int AudioIOCSL::write(void *buffer, int size)
-{
- arts_assert(outputStream != 0);
-
- int result = csl_pcm_write(outputStream, size, buffer);
- updateFds();
-
- return result;
-}
-
-void AudioIOCSL::handleWrite(void *, CslPcmStream *)
-{
- AudioSubSystem::the()->handleIO(AudioSubSystem::ioWrite);
-}
-
-/* mainloop integration: make CSL callbacks work inside the aRts mainloop */
-
-int AudioIOCSL::csl2iomanager(int cslTypes)
-{
- /* FIXME: doublecheck this list */
- int types = 0;
-
- if(cslTypes & CSL_POLLIN)
- types |= IOType::read;
- if(cslTypes & CSL_POLLOUT)
- types |= IOType::write;
- if(cslTypes & CSL_POLLERR)
- types |= IOType::except;
-
- return types;
-}
-
-void AudioIOCSL::updateFds()
-{
- unsigned int n_fds = csl_poll_count_fds(cslDriver);
- CslPollFD *newFds = g_newa(CslPollFD, n_fds);
-
- unsigned int have_fds = csl_poll_get_fds(cslDriver, n_fds, newFds);
- arts_assert(have_fds == n_fds);
-
- cslFds.clear();
-
- unsigned int i;
- for(i = 0; i < have_fds; i++)
- cslFds.push_back(newFds[i]);
-
- /* FIXME: if csl provided a flag for this, we could save some work here */
- bool fdsChanged;
- if(cslFds.size() == cslOldFds.size())
- {
- fdsChanged = false;
- for(i = 0; i < have_fds; i++)
- {
- if(cslFds[i].events != cslOldFds[i].events)
- fdsChanged = true;
- if(cslFds[i].fd != cslOldFds[i].fd)
- fdsChanged = true;
- }
- }
- else
- {
- fdsChanged = true;
- }
- if(!fdsChanged)
- return;
-
- vector<CslPollFD>::iterator ci;
-
- /* remove old watches */
- /*
- * UGLY! due to broken API, we can only remove all watches here, and not
- * do anything selectively - its not a problem for the code here, but it
- * might be a problem elsewhere. Unfortunately, it can't be fixed without
- * breaking BC.
- */
- Dispatcher::the()->ioManager()->remove(this, IOType::all);
- arts_debug("AudioIOCSL::updateFds(): removing watches");
-
- /* add new watches */
- for(ci = cslFds.begin(); ci < cslFds.end(); ci++)
- {
- int types = csl2iomanager(ci->events);
- if(types)
- {
- Dispatcher::the()->ioManager()->watchFD(ci->fd, types, this);
- arts_debug("AudioIOCSL::updateFds(): adding watch on %d", ci->fd);
- }
- }
-
- cslOldFds = cslFds;
-}
-
-void AudioIOCSL::notifyIO(int fd, int type)
-{
- vector<CslPollFD>::iterator fi;
-
- for(fi = cslFds.begin(); fi != cslFds.end(); fi++)
- {
- if(fi->fd == fd)
- {
- int ftype = csl2iomanager(fi->events);
- fi->revents = 0;
-
- if(type & ftype & IOType::read)
- fi->revents |= CSL_POLLIN;
- if(type & ftype & IOType::write)
- fi->revents |= CSL_POLLOUT;
- if(type & ftype & IOType::except)
- fi->revents |= CSL_POLLERR;
-
- if(fi->revents)
- csl_poll_handle_fds(cslDriver, 1, &(*fi));
- }
- }
- updateFds();
-}
-
-#endif