diff options
author | Michele Calgaro <michele.calgaro@yahoo.it> | 2020-12-06 19:28:06 +0900 |
---|---|---|
committer | Michele Calgaro <michele.calgaro@yahoo.it> | 2020-12-06 19:28:49 +0900 |
commit | 247750abcbf6760bbc52aa5d64fc375d6fbee8a3 (patch) | |
tree | 86e029a960ddd599edbeee8dddf70e87ee314e23 /flow/audioiocsl.cc | |
parent | 595ad58e25c5d0f0c512194f66708f99e5bc1527 (diff) | |
download | arts-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.cc | 640 |
1 files changed, 0 insertions, 640 deletions
diff --git a/flow/audioiocsl.cc b/flow/audioiocsl.cc deleted file mode 100644 index 7f3d5dd..0000000 --- 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 |