libcw/cwIo.cpp

1544 lines
47 KiB
C++

#include "cwCommon.h"
#include "cwLog.h"
#include "cwCommonImpl.h"
#include "cwMem.h"
#include "cwObject.h"
#include "cwText.h"
#include "cwTextBuf.h"
#include "cwIo.h"
#include "cwMidi.h"
#include "cwMidiPort.h"
#include "cwObject.h"
#include "cwThread.h"
#include "cwThreadMach.h"
#include "cwMutex.h"
#include "cwSerialPort.h"
#include "cwSerialPortSrv.h"
#include "cwAudioDevice.h"
#include "cwAudioBuf.h"
#include "cwAudioDeviceAlsa.h"
#include "cwWebSock.h"
#include "cwUi.h"
namespace cw
{
namespace io
{
struct io_str;
typedef struct serialPort_str
{
char* name;
char* device;
unsigned baudRate;
unsigned flags;
unsigned pollPeriodMs;
serialPortSrv::handle_t serialH;
} serialPort_t;
typedef struct audioGroup_str
{
bool enableFl;
audio_msg_t msg;
mutex::handle_t mutexH;
unsigned threadTimeOutMs;
struct io_str* p;
} audioGroup_t;
typedef struct audioDev_str
{
bool enableFl; //
char* devName; //
unsigned devIdx; //
unsigned iCbCnt; // Count the audio driver in/out callbacks
unsigned oCbCnt; //
audioGroup_t* iGroup; // Audio group points for this device
audioGroup_t* oGroup; //
audio_group_dev_t* iagd; // audio group device record assoc'd with this
audio_group_dev_t* oagd;
} audioDev_t;
typedef struct io_str
{
std::atomic<bool> quitFl;
cbFunc_t cbFunc;
void* cbArg;
thread_mach::handle_t threadMachH;
object_t* cfg;
serialPort_t* serialA;
unsigned serialN;
midi::device::handle_t midiH;
audio::device::handle_t audioH;
audio::device::alsa::handle_t alsaH;
audio::buf::handle_t audioBufH;
unsigned audioThreadTimeOutMs;
audioDev_t* audioDevA;
unsigned audioDevN;
audioGroup_t* audioGroupA;
unsigned audioGroupN;
ui::ws::handle_t wsUiH; // ui::ws handle (invalid if no UI was specified)
ui::appIdMap_t* uiMapA; // Application supplied id's for the UI resource supplied with the cfg script via 'uiCfgFn'.
unsigned uiMapN; //
} io_t;
io_t* _handleToPtr( handle_t h )
{ return handleToPtr<handle_t,io_t>(h); }
// Start or stop all the audio devices in p->audioDevA[]
rc_t _audioDeviceStartStop( io_t* p, bool startFl )
{
rc_t rc = kOkRC;
for(unsigned i=0; i<p->audioDevN; ++i)
if( p->audioDevA[i].enableFl )
{
rc_t rc0 = kOkRC;
if( startFl )
rc0 = audio::device::start( p->audioH, p->audioDevA[i].devIdx );
else
rc0 = audio::device::stop( p->audioH, p->audioDevA[i].devIdx );
if(rc0 != kOkRC )
rc = cwLogError(rc0,"The audio device: %s failed to %s.", cwStringNullGuard(p->audioDevA[i].devName), startFl ? "start" : "stop");
}
return rc;
}
// Release all resource associated with a group-device record.
void _audioGroupDestroyDevs( audio_group_dev_t* agd )
{
while( agd != nullptr )
{
audio_group_dev_t* agd0 = agd->link;
mem::release(agd);
agd = agd0;
}
}
// Release all resource associated with all audio group records
rc_t _audioGroupDestroyAll( io_t* p )
{
rc_t rc = kOkRC;
for(unsigned i=0; i<p->audioGroupN; ++i)
{
audioGroup_t* ag = p->audioGroupA + i;
_audioGroupDestroyDevs( ag->msg.iDevL );
_audioGroupDestroyDevs( ag->msg.oDevL );
mem::release(ag->msg.iBufArray);
mem::release(ag->msg.oBufArray);
mutex::unlock( ag->mutexH );
mutex::destroy( ag->mutexH );
}
mem::release(p->audioGroupA);
p->audioGroupN = 0;
return rc;
}
rc_t _audioDestroy( io_t* p )
{
rc_t rc = kOkRC;
// stop each device - this will stop the callbacks to _audioDeviceCallback()
if((rc = _audioDeviceStartStop(p,false)) != kOkRC )
{
rc = cwLogError(rc,"Audio device stop failed.");
goto errLabel;
}
if((rc = audio::device::alsa::destroy(p->alsaH)) != kOkRC )
{
rc = cwLogError(rc,"ALSA sub-system shutdown failed.");
goto errLabel;
}
if((rc = audio::device::destroy(p->audioH)) != kOkRC )
{
rc = cwLogError(rc,"Audio device sub-system shutdown failed.");
goto errLabel;
}
if((rc = audio::buf::destroy(p->audioBufH)) != kOkRC )
{
rc = cwLogError(rc,"Audio buffer release failed.");
goto errLabel;
}
if((rc = _audioGroupDestroyAll(p)) != kOkRC )
{
rc = cwLogError(rc,"Audio group release failed.");
goto errLabel;
}
mem::free(p->audioDevA);
p->audioDevN = 0;
errLabel:
if(rc != kOkRC )
rc = cwLogError(rc,"Audio sub-system shutdown failed.");
return rc;
}
rc_t _destroy( io_t* p )
{
rc_t rc = kOkRC;
// stop thread callbacks
if((rc = thread_mach::destroy(p->threadMachH)) != kOkRC )
return rc;
for(unsigned i=0; i<p->serialN; ++i)
serialPortSrv::destroy( p->serialA[i].serialH );
mem::free(p->serialA);
p->serialN = 0;
// TODO: clean up the audio system more systematically
// by first stopping all the devices and then
// reversing the creating process.
_audioDestroy(p);
midi::device::destroy(p->midiH);
for(unsigned i=0; i<p->uiMapN; ++i)
mem::free(const_cast<char*>(p->uiMapA[i].eleName));
mem::release(p->uiMapA);
p->uiMapN = 0;
ui::ws::destroy(p->wsUiH);
// free the cfg object
if( p->cfg != nullptr )
p->cfg->free();
mem::release(p);
return rc;
}
void _serialPortCb( void* arg, const void* byteA, unsigned byteN )
{
//io_t* p = reinterpret_cast<io_t*>(arg);
}
rc_t _serialPortParseCfg( const object_t& e, serialPort_t* port )
{
rc_t rc = kOkRC;
char* parityLabel = nullptr;
unsigned bits = 8;
unsigned stop = 1;
idLabelPair_t parityA[] =
{
{ serialPort::kEvenParityFl, "even" },
{ serialPort::kOddParityFl, "odd" },
{ serialPort::kNoParityFl, "no" },
{ 0, nullptr }
};
if((rc = e.getv(
"name", port->name,
"device", port->device,
"baud", port->baudRate,
"bits", bits,
"stop", stop,
"parity", parityLabel,
"pollPeriodMs", port->pollPeriodMs )) != kOkRC )
{
rc = cwLogError(kSyntaxErrorRC,"Serial configuration parse failed.");
}
switch( bits )
{
case 5: port->flags |= serialPort::kDataBits5Fl; break;
case 6: port->flags |= serialPort::kDataBits6Fl; break;
case 7: port->flags |= serialPort::kDataBits7Fl; break;
case 8: port->flags |= serialPort::kDataBits8Fl; break;
default:
rc = cwLogError(kSyntaxErrorRC,"Invalid serial data bits cfg:%i.",bits);
}
switch( stop )
{
case 1: port->flags |= serialPort::k1StopBitFl; break;
case 2: port->flags |= serialPort::k2StopBitFl; break;
default:
rc = cwLogError(kSyntaxErrorRC,"Invalid serial stop bits cfg:%i.",stop);
}
unsigned i;
for(i=0; parityA[i].label != nullptr; ++i)
if( textCompare(parityLabel,parityA[i].label) == 0 )
{
port->flags |= parityA[i].id;
break;
}
if( parityA[i].label == nullptr )
rc = cwLogError(kSyntaxErrorRC,"Invalid parity cfg:'%s'.",cwStringNullGuard(parityLabel));
return rc;
}
rc_t _serialPortCreate( io_t* p, const object_t* c )
{
rc_t rc = kOkRC;
const object_t* cfgL = nullptr;
// get the serial port list node
if((cfgL = c->find("serial")) == nullptr || !cfgL->is_list())
return cwLogError(kSyntaxErrorRC,"Unable to locate the 'serial' configuration list.");
p->serialN = cfgL->child_count();
p->serialA = mem::allocZ<serialPort_t>(p->serialN);
// for each serial port cfg
for(unsigned i=0; i<p->serialN; ++i)
{
const object_t* e = cfgL->child_ele(i);
serialPort_t* r = p->serialA + i;
if( e == nullptr )
{
rc = cwLogError(kSyntaxErrorRC,"Unable to access a 'serial' port configuration record at index:%i.",i);
break;
}
else
{
// parse the cfg record
if((rc = _serialPortParseCfg(*e,r)) != kOkRC )
{
rc = cwLogError(rc,"Serial configuration parse failed on record index:%i.", i );
break;
}
/*
// create the serial port object
if((rc = serialPortSrv::create( r->serialH, r->device, r->baudRate, r->flags, _serialPortCb, p, r->pollPeriodMs )) != kOkRC )
{
rc = cwLogError(rc,"Serial port create failed on record index:%i.", i );
break;
}
*/
}
}
return rc;
}
void _midiCallback( const midi::packet_t* pktArray, unsigned pktCnt )
{
unsigned i,j;
for(i=0; i<pktCnt; ++i)
{
const midi::packet_t* pkt = pktArray + i;
//io_t* p = reinterpret_cast<io_t*>(pkt->cbDataPtr);
for(j=0; j<pkt->msgCnt; ++j)
if( pkt->msgArray != NULL )
printf("io midi cb: %ld %ld 0x%x %i %i\n", pkt->msgArray[j].timeStamp.tv_sec, pkt->msgArray[j].timeStamp.tv_nsec, pkt->msgArray[j].status,pkt->msgArray[j].d0, pkt->msgArray[j].d1);
else
printf("io midi cb: 0x%x ",pkt->sysExMsg[j]);
}
}
rc_t _midiPortCreate( io_t* p, const object_t* c )
{
rc_t rc = kOkRC;
unsigned parserBufByteN = 1024;
if((rc = c->getv(
"parserBufByteN", parserBufByteN )) != kOkRC )
{
rc = cwLogError(kSyntaxErrorRC,"MIDI configuration parse failed.");
}
// initialie the MIDI system
if((rc = create(p->midiH, _midiCallback, p, parserBufByteN, "app")) != kOkRC )
return rc;
return rc;
}
bool _audioGroupBufIsReady( io_t* p, audioGroup_t* ag, bool inputFl )
{
audio_group_dev_t* agd = inputFl ? ag->msg.iDevL : ag->msg.oDevL;
for(; agd!=nullptr; agd=agd->link)
if( !audio::buf::isDeviceReady( p->audioBufH, agd->devIdx, inputFl ? audio::buf::kInFl : audio::buf::kOutFl ) )
return false;
return true;
}
// Get sample ponters or advance the pointers on the buffer associates with each device.
enum { kAudioGroupGetBuf, kAudioGroupAdvBuf };
void _audioGroupProcSampleBufs( io_t* p, audioGroup_t* ag, unsigned processTypeId, unsigned inputFl )
{
sample_t** bufArray = inputFl ? ag->msg.iBufArray : ag->msg.oBufArray;
unsigned bufArrayChCnt = inputFl ? ag->msg.iBufChCnt : ag->msg.oBufChCnt;
audio_group_dev_t* agd = inputFl ? ag->msg.iDevL : ag->msg.oDevL;
unsigned audioBufFlags = inputFl ? audio::buf::kInFl : audio::buf::kOutFl;
unsigned chIdx = 0;
for(; agd!=nullptr && chIdx < bufArrayChCnt; agd=agd->link)
{
switch( processTypeId )
{
case kAudioGroupGetBuf:
audio::buf::get( p->audioBufH, agd->devIdx, audioBufFlags, bufArray+chIdx, agd->chCnt );
break;
case kAudioGroupAdvBuf:
audio::buf::advance( p->audioBufH, agd->devIdx, audioBufFlags );
break;
default:
assert(0);
}
chIdx += agd->chCnt;
}
}
// This is the audio processing thread function. Block on the audio group condition var
// which is triggered when all the devices in the group are ready by _audioGroupNotifyIfReady().
bool _audioGroupThreadFunc( void* arg )
{
rc_t rc = kOkRC;
audioGroup_t* ag = reinterpret_cast<audioGroup_t*>(arg);
// block on the cond. var
if((rc = mutex::waitOnCondVar(ag->mutexH,false,ag->threadTimeOutMs)) != kOkRC )
{
if( rc != kTimeOutRC )
{
cwLogError(rc,"Audio thread Wait-on-condition-var failed.");
return false;
}
}
// if the cond. var was signaled and ag->mutexH is locked
if( rc == kOkRC )
{
msg_t msg;
msg.tid = kAudioTId;
msg.u.audio = &ag->msg;
// While the all audio devices for this group are ready
while( _audioGroupBufIsReady( ag->p, ag, true ) && _audioGroupBufIsReady( ag->p, ag, false) )
{
_audioGroupProcSampleBufs( ag->p, ag, kAudioGroupGetBuf, true );
_audioGroupProcSampleBufs( ag->p, ag, kAudioGroupGetBuf, false );
ag->p->cbFunc(ag->p->cbArg,&msg);
_audioGroupProcSampleBufs( ag->p, ag, kAudioGroupAdvBuf, true );
_audioGroupProcSampleBufs( ag->p, ag, kAudioGroupAdvBuf, false );
}
}
return true;
}
// Given a device index return the associated audioDev_t record.
audioDev_t* _audioDeviceIndexToRecd( io_t* p, unsigned devIdx )
{
for(unsigned i=0; i<p->audioDevN; ++i)
if( p->audioDevA[i].devIdx == devIdx )
return p->audioDevA + i;
return nullptr;
}
// Add a audioGroup pointer to groupA[] and return the new count of elements in the array.
unsigned _audioDeviceUpdateGroupArray( audioGroup_t** groupA, unsigned groupN, unsigned curGroupN, audioGroup_t* ag )
{
if( ag != nullptr )
{
for(unsigned i=0; i<curGroupN; ++i)
if( groupA[i] == ag )
return curGroupN;
if( curGroupN >= groupN )
{
cwLogError(kAssertFailRC,"The group array was found to be too small during an audio device callback.");
goto errLabel;
}
groupA[curGroupN++] = ag;
}
errLabel:
return curGroupN;
}
// If audioDev (devIdx) is ready then update audio_group_dev.readyCnt and store a pointer to it's associated group in groupA[].
// Return the count of pointers stored in groupA[].
unsigned _audioDeviceUpdateReadiness( io_t* p, unsigned devIdx, bool inputFl, audioGroup_t** groupA, unsigned groupN, unsigned curGroupN )
{
audioDev_t* ad;
// get the device record assoc'ed with this device
if((ad = _audioDeviceIndexToRecd(p, devIdx )) == nullptr )
{
cwLogError(kAssertFailRC,"An unexpected audio device index was encountered in an audio device callback.");
goto errLabel;
}
// if an input packet was received on this device
if( inputFl )
{
if( audio::buf::isDeviceReady( p->audioBufH, devIdx, audio::buf::kInFl) )
{
// atomic incr - note that the ordering doesn't matter because the update does not control access to any other variables from another thread
std::atomic_store_explicit(&ad->iagd->readyCnt, ad->iagd->readyCnt++, std::memory_order_relaxed);
curGroupN = _audioDeviceUpdateGroupArray( groupA, groupN, curGroupN, ad->iGroup );
ad->iagd->cbCnt += 1; // update the callback count for this device
}
}
else // if an output packet was received on this device
{
if( audio::buf::isDeviceReady( p->audioBufH, devIdx, audio::buf::kOutFl ) )
{
std::atomic_store_explicit(&ad->oagd->readyCnt, ad->oagd->readyCnt++, std::memory_order_relaxed); // atomic incr
curGroupN = _audioDeviceUpdateGroupArray( groupA, groupN, curGroupN, ad->oGroup );
ad->oagd->cbCnt += 1;
}
}
errLabel:
// return the count of dev indexes in groupA[]
return curGroupN;
}
// Return true if all the devices in the linked list 'agd' are ready to source/sink data.
bool _audioGroupIsReady( audio_group_dev_t* agd )
{
// are all devices in this group ready to provide/accept new audio data
for(; agd!=nullptr; agd=agd->link)
if( std::atomic_load_explicit(&agd->readyCnt, std::memory_order_acquire) > 0 ) // ACQUIRE
return false;
return true;
}
// Decrement the ready count on all devices in the linked list pointed to by 'agd'.
void _audioGroupDecrReadyCount( audio_group_dev_t* agd )
{
for(; agd !=nullptr; agd=agd->link)
std::atomic_store_explicit(&agd->readyCnt,agd->readyCnt--, std::memory_order_release); // REALEASE
}
// This function is called by the audio device driver callback _audioDeviceCallback().
// If all devices in any of the groups contained in groupA[] are ready to source/sink
// audio data then this function triggers the condition var on the associated
// group thread to trigger audio processing on those devices. See _audioGroupThreadFunc().
void _audioGroupNotifyIfReady( io_t* p, audioGroup_t** groupA, unsigned groupN )
{
// for each device whose audio buffer state changed
for(unsigned i=0; i<groupN; ++i)
{
audioGroup_t* ag = groupA[i];
if( _audioGroupIsReady( ag->msg.iDevL ) && _audioGroupIsReady( ag->msg.oDevL ) )
{
// we now know the group is ready and so the ready count maybe decremented on each device
_audioGroupDecrReadyCount( ag->msg.iDevL);
_audioGroupDecrReadyCount( ag->msg.oDevL);
// notify the audio group thread that all devices are ready by signaling the condition var that it is blocked on
mutex::signalCondVar(ag->mutexH);
}
}
}
// This function is called by the audio device drivers to when incoming audio arrives
// or when there is available space to write outgoing audio.
// If all in/out devices in a group are ready to be source/sink audio data then this function
// triggers the group thread condition var thereby causing an application callback
// to process the audio data.
void _audioDeviceCallback( void* cbArg, audio::device::audioPacket_t* inPktArray, unsigned inPktCnt, audio::device::audioPacket_t* outPktArray, unsigned outPktCnt )
{
io_t* p = reinterpret_cast<io_t*>(cbArg);
unsigned groupN = 2 * inPktCnt + outPktCnt;
audioGroup_t* groupA[ groupN ];
unsigned curGroupN = 0;
// update the audio buffer
audio::buf::update( p->audioBufH, inPktArray, inPktCnt, outPktArray, outPktCnt );
// update the readiness of the input devices
for(unsigned i=0; i<inPktCnt; ++i)
curGroupN = _audioDeviceUpdateReadiness( p, inPktArray[i].devIdx, true, groupA, groupN, curGroupN );
// update the readiness of the output devices
for(unsigned i=0; i<outPktCnt; ++i)
curGroupN = _audioDeviceUpdateReadiness( p, outPktArray[i].devIdx, false, groupA, groupN, curGroupN );
// groupA[] contains the set of groups which may have been made ready during this callback
_audioGroupNotifyIfReady( p, groupA, curGroupN );
}
// Allocate a group-device record and link it to the associated group record.
rc_t _audioGroupAddDevice( audioGroup_t* ag, bool inputFl, audioDev_t* ad, unsigned chCnt )
{
rc_t rc = kOkRC;
audio_group_dev_t* new_agd = mem::allocZ<audio_group_dev_t>();
new_agd->name = ad->devName;
new_agd->devIdx = ad->devIdx;
new_agd->chCnt = chCnt;
audio_group_dev_t*& agd = inputFl ? ag->msg.iDevL : ag->msg.oDevL;
if( agd == nullptr )
agd = new_agd;
else
{
for(; agd!=nullptr; agd=agd->link)
if( agd->link == nullptr )
{
agd->link = new_agd;
break;
}
}
// update the audio group channel count and set the pointers from
// the private audioDevice_t to the public audio_group_dev_t.
if( inputFl )
{
ag->msg.iBufChCnt += chCnt;
ad->iagd = new_agd;
}
else
{
ag->msg.oBufChCnt += chCnt;
ad->oagd = new_agd;
}
return rc;
}
// Given an audio group id return the associated audio group.
audioGroup_t* _audioGroupFromId( io_t* p, unsigned groupId )
{
for(unsigned i=0; i<p->audioGroupN; ++i)
if( p->audioGroupA[i].msg.groupId == groupId )
return p->audioGroupA + i;
return nullptr;
}
// Create the audio group records by parsing the cfg. audio.groupL[] list.
rc_t _audioDeviceParseAudioGroupList( io_t* p, const object_t* c )
{
rc_t rc = kOkRC;
const object_t* groupL = nullptr;
if((groupL = c->find("groupL")) == nullptr )
return cwLogError(kSyntaxErrorRC,"Audio Group list 'groupL' not found.");
p->audioGroupN = groupL->child_count();
p->audioGroupA = mem::allocZ<audioGroup_t>(p->audioGroupN);
for(unsigned i=0; i<p->audioGroupN; ++i)
{
const object_t* node;
if((node = groupL->child_ele(i)) != nullptr )
{
if(( rc = node->getv(
"enableFl", p->audioGroupA[i].enableFl,
"id", p->audioGroupA[i].msg.groupId,
"srate", p->audioGroupA[i].msg.srate,
"dspFrameCnt", p->audioGroupA[i].msg.dspFrameCnt )) != kOkRC )
{
rc = cwLogError(rc,"Error parsing audio group cfg record at index:%i",i);
goto errLabel;
}
// create the audio group thread mutex/cond var
if((rc = mutex::create(p->audioGroupA[i].mutexH)) != kOkRC )
{
rc = cwLogError(rc,"Error creating audio group mutex.");
goto errLabel;
}
if((rc = mutex::lock(p->audioGroupA[i].mutexH)) != kOkRC )
{
rc = cwLogError(rc,"Error locking audio group mutex.");
goto errLabel;
}
// create the audio group thread
if((rc = thread_mach::add(p->threadMachH,_audioGroupThreadFunc,p->audioGroupA+i)) != kOkRC )
{
rc = cwLogError(rc,"Error creating audio group thread.");
goto errLabel;
}
p->audioGroupA[i].p = p;
p->audioGroupA[i].threadTimeOutMs = p->audioThreadTimeOutMs;
}
}
errLabel:
return rc;
}
// Create the audio device records by parsing the cfg audio.deviceL[] list.
rc_t _audioDeviceParseAudioDeviceList( io_t* p, const object_t* cfg )
{
rc_t rc = kOkRC;
const object_t* deviceL_Node;
// get the audio device list
if((deviceL_Node = cfg->find("deviceL")) == nullptr )
{
rc = cwLogError(kSyntaxErrorRC,"Audio 'deviceL' failed.");
goto errLabel;
}
// create an audio device cfg list
p->audioDevN = deviceL_Node->child_count();
p->audioDevA = mem::allocZ<audioDev_t>(p->audioDevN);
// fill in the audio device cfg list
for(unsigned i=0; i<p->audioDevN; ++i)
{
audioDev_t* ad = p->audioDevA + i;
unsigned framesPerCycle = 0;
unsigned cycleCnt = 0;
audioGroup_t* iag = nullptr;
audioGroup_t* oag = nullptr;
double israte = 0;
double osrate = 0;
double srate = 0;
unsigned iDspFrameCnt = 0;
unsigned oDspFrameCnt = 0;
unsigned dspFrameCnt = 0;
unsigned inGroupId = kInvalidId;
unsigned outGroupId = kInvalidId;
const object_t* node;
if((node = deviceL_Node->child_ele(i)) != nullptr )
{
if(( rc = node->getv(
"enableFl", ad->enableFl,
"inGroupId", inGroupId,
"outGroupId", outGroupId,
"device", ad->devName,
"framesPerCycle", framesPerCycle,
"cycleCnt", cycleCnt )) != kOkRC )
{
rc = cwLogError(rc,"Error parsing audio cfg record at index:%i",i);
goto errLabel;
}
}
// if the configuration is enabled
if( ad->enableFl )
{
// get the hardware device index
if((ad->devIdx = audio::device::labelToIndex( p->audioH, ad->devName)) == kInvalidIdx )
{
rc = cwLogError(rc,"Unable to locate the audio hardware device:'%s'.", cwStringNullGuard(ad->devName));
goto errLabel;
}
// get the device channel counts
unsigned iChCnt = audio::device::channelCount(p->audioH,ad->devIdx,true);
unsigned oChCnt = audio::device::channelCount(p->audioH,ad->devIdx,false);
// get the ingroup
if((iag = _audioGroupFromId(p, inGroupId )) != nullptr )
{
israte = iag->msg.srate;
iDspFrameCnt = iag->msg.dspFrameCnt;
}
// get the outgroup
if((oag = _audioGroupFromId(p, outGroupId)) != nullptr )
{
osrate = oag->msg.srate;
oDspFrameCnt = oag->msg.dspFrameCnt;
}
// in-srate an out-srate must be equal or one must be 0
if( osrate==0 || israte==0 || osrate==israte )
{
// the true sample rate is the non-zero sample rate
srate = std::max(israte,osrate);
}
else
{
rc = cwLogError(kInvalidArgRC,"The device '%s' belongs to two groups (id:%i and id:%i) at different sample rates (%f != %f).", cwStringNullGuard(ad->devName), inGroupId, outGroupId, israte, osrate );
goto errLabel;
}
// in-dspFrameCnt an out-dspFrameCnt must be equal or one must be 0
if( oDspFrameCnt==0 || iDspFrameCnt==0 || oDspFrameCnt==iDspFrameCnt)
{
// the true sample rate is the non-zero sample rate
dspFrameCnt = std::max(iDspFrameCnt,oDspFrameCnt);
}
else
{
rc = cwLogError(kInvalidArgRC,"The device '%s' belongs to two groups (id:%i and id:%i) width different dspFrameCnt values (%i != %i).", cwStringNullGuard(ad->devName), inGroupId, outGroupId, iDspFrameCnt, oDspFrameCnt );
goto errLabel;
}
// setup the device based on the configuration
if((rc = audio::device::setup(p->audioH, ad->devIdx, srate, framesPerCycle, _audioDeviceCallback, p)) != kOkRC )
{
rc = cwLogError(rc,"Unable to setup the audio hardware device:'%s'.", ad->devName);
goto errLabel;
}
// initialize the audio bufer for this device
if((rc = audio::buf::setup( p->audioBufH, ad->devIdx, srate, dspFrameCnt, cycleCnt, iChCnt, framesPerCycle, oChCnt, framesPerCycle )) != kOkRC )
{
rc = cwLogError(rc,"Audio device buffer channel setup failed.");
goto errLabel;
}
if( iag != nullptr )
if((rc = _audioGroupAddDevice( iag, true, ad, iChCnt )) != kOkRC )
goto errLabel;
if( oag != nullptr )
if((rc = _audioGroupAddDevice( oag, false, ad, oChCnt )) != kOkRC )
goto errLabel;
// set the device group pointers
ad->iGroup = iag;
ad->oGroup = oag;
}
}
errLabel:
return rc;
}
// Allocate the sample ptr buffers for each audio group.
rc_t _audioGroupAllocBuffer( io_t* p )
{
rc_t rc = kOkRC;
for(unsigned i=0; i<p->audioGroupN; ++i)
{
audioGroup_t* ag = p->audioGroupA + i;
if( ag->msg.iBufChCnt )
ag->msg.iBufArray = mem::allocZ<sample_t*>( ag->msg.iBufChCnt );
if( ag->msg.oBufChCnt )
ag->msg.oBufArray = mem::allocZ<sample_t*>( ag->msg.oBufChCnt );
}
return rc;
}
rc_t _audioDeviceParseConfig( io_t* p, const object_t* cfg )
{
rc_t rc = kOkRC;
unsigned meterMs = 50;
const object_t* node = nullptr;
// get the audio port node
if((node = cfg->find("audio")) == nullptr )
return cwLogError(kSyntaxErrorRC,"Unable to locate the 'audio' configuration node.");
// get the meterMs value
if((rc = node->getv("meterMs", meterMs, "threadTimeOutMs", p->audioThreadTimeOutMs )) != kOkRC )
{
rc = cwLogError(kSyntaxErrorRC,"Audio 'meterMs' or 'dspFrameCnt' parse failed.");
goto errLabel;
}
// initialize the audio buffer
if((rc = audio::buf::create( p->audioBufH, audio::device::count(p->audioH), meterMs )) != kOkRC )
{
rc = cwLogError(rc,"Audio device buffer failed.");
goto errLabel;
}
// parse the audio group list
if((rc = _audioDeviceParseAudioGroupList( p, cfg )) != kOkRC )
{
rc = cwLogError(rc,"Parse audio group list.");
goto errLabel;
}
// parse the audio device list
if((rc = _audioDeviceParseAudioDeviceList( p, cfg )) != kOkRC )
{
rc = cwLogError(rc,"Parse audio device list.");
goto errLabel;
}
// create the audio buffer pointer arrays
if((rc = _audioGroupAllocBuffer(p)) != kOkRC )
{
rc = cwLogError(rc,"Audio group buffer allocation failed.");
goto errLabel;
}
errLabel:
return rc;
}
rc_t _audioDeviceCreate( io_t* p, const object_t* c )
{
rc_t rc = kOkRC;
audio::device::driver_t* audioDrv = nullptr;
// initialize the audio device interface
if((rc = audio::device::create(p->audioH)) != kOkRC )
{
rc = cwLogError(rc,"Initialize failed.");
goto errLabel;
}
// initialize the ALSA device driver interface
if((rc = audio::device::alsa::create(p->alsaH, audioDrv )) != kOkRC )
{
rc = cwLogError(rc,"ALSA initialize failed.");
goto errLabel;
}
// register the ALSA device driver with the audio interface
if((rc = audio::device::registerDriver( p->audioH, audioDrv )) != kOkRC )
{
rc = cwLogError(rc,"ALSA driver registration failed.");
goto errLabel;
}
// read the configuration information and setup the audio hardware
if((rc = _audioDeviceParseConfig( p, c )) != kOkRC )
{
rc = cwLogError(rc,"Audio device configuration failed.");
goto errLabel;
}
errLabel:
return rc;
}
// This function is called by the websocket with messages comring from a remote UI.
rc_t _uiCallback( void* cbArg, unsigned wsSessId, ui::opId_t opId, unsigned parentAppId, unsigned uuId, unsigned appId, const ui::value_t* v )
{
io_t* p = (io_t*)cbArg;
msg_t r;
r.tid = kUiTId;
r.u.ui = { .opId=opId, .wsSessId=wsSessId, .parentAppId=parentAppId, .uuId=uuId, .appId=appId, .value=v };
return p->cbFunc(p->cbArg,&r);
}
rc_t _uiConfig( io_t* p, const object_t* c, const ui::appIdMap_t* mapA, unsigned mapN )
{
rc_t rc = kOkRC;
const char* uiCfgLabel = "ui";
ui::ws::args_t args;
// Duplicate the application id map
if( mapN > 0 )
{
p->uiMapA = mem::allocZ<ui::appIdMap_t>( mapN );
p->uiMapN = mapN;
for(unsigned i=0; i<mapN; ++i)
{
p->uiMapA[i] = mapA[i];
p->uiMapA[i].eleName = mem::duplStr(mapA[i].eleName);
}
}
// if a UI cfg record was given
if( c->find(uiCfgLabel) != nullptr )
{
// parse the ui
if((rc = ui::ws::parseArgs( *c, args, uiCfgLabel )) == kOkRC )
{
rc = ui::ws::create(p->wsUiH, args, p, _uiCallback, args.uiRsrc, p->uiMapA, p->uiMapN);
ui::ws::releaseArgs(args);
}
}
return rc;
}
rc_t _handleToWsUiHandle( handle_t h, ui::ws::handle_t& uiH_Ref )
{
rc_t rc = kOkRC;
io_t* p = _handleToPtr(h);
if( p != nullptr && p->wsUiH.isValid())
uiH_Ref = p->wsUiH;
else
rc = cwLogError(kInvalidStateRC,"Invalid ui::ws handle in io request.");
return rc;
}
rc_t _handleToUiHandle( handle_t h, ui::handle_t& uiHRef )
{
rc_t rc;
ui::ws::handle_t wsUiH;
uiHRef.clear();
if((rc = _handleToWsUiHandle(h, wsUiH)) != kOkRC )
return rc;
uiHRef = ui::ws::uiHandle(wsUiH);
return uiHRef.isValid() ? rc : cwLogError(rc,"Invalid ui handle in io request.");
}
}
}
cw::rc_t cw::io::create(
handle_t& h,
const object_t* o,
cbFunc_t cbFunc,
void* cbArg,
const ui::appIdMap_t* mapA,
unsigned mapN,
const char* cfgLabel )
{
rc_t rc;
if((rc = destroy(h)) != kOkRC )
return rc;
// create the io_t object
io_t* p = mem::allocZ<io_t>();
// duplicate the cfg object so that we can maintain pointers into its elements without
// any chance that they will be delted before the application completes
p->cfg = o->duplicate();
// create the the thread machine
if((rc = thread_mach::create( p->threadMachH )) != kOkRC )
goto errLabel;
// create the serial port device
if((rc = _serialPortCreate(p,p->cfg)) != kOkRC )
goto errLabel;
// create the MIDI port device
if((rc = _midiPortCreate(p,p->cfg)) != kOkRC )
goto errLabel;
// create the Audio device interface
if((rc = _audioDeviceCreate(p,p->cfg)) != kOkRC )
goto errLabel;
// create the UI interface
if((rc = _uiConfig(p,p->cfg, mapA, mapN)) != kOkRC )
goto errLabel;
p->cbFunc = cbFunc;
p->cbArg = cbArg;
p->quitFl.store(false);
h.set(p);
errLabel:
if(rc != kOkRC )
_destroy(p);
return rc;
}
cw::rc_t cw::io::destroy( handle_t& h )
{
rc_t rc = kOkRC;
if( !h.isValid() )
return rc;
io_t* p = _handleToPtr(h);
if((rc = _destroy(p)) != kOkRC )
return rc;
h.clear();
return rc;
}
cw::rc_t cw::io::start( handle_t h )
{
io_t* p = _handleToPtr(h);
_audioDeviceStartStop(p,true);
return thread_mach::start( p->threadMachH );
}
cw::rc_t cw::io::pause( handle_t h )
{
io_t* p = _handleToPtr(h);
return thread_mach::stop( p->threadMachH );
}
cw::rc_t cw::io::stop( handle_t h )
{
io_t* p = _handleToPtr(h);
p->quitFl.store(true);
return kOkRC;
}
cw::rc_t cw::io::exec( handle_t h )
{
rc_t rc = kOkRC;
io_t* p = _handleToPtr(h);
if( p->wsUiH.isValid() )
rc = ui::ws::exec(p->wsUiH );
// if the application quit flag is set then signal that the main thread needs to exit
return rc;
}
bool cw::io::isShuttingDown( handle_t h )
{
io_t* p = _handleToPtr(h);
return p->quitFl.load();
//return thread_mach::is_shutdown(p->threadMachH);
}
//----------------------------------------------------------------------------------------------------------
//
// Serial
//
unsigned cw::io::serialDeviceCount( handle_t h )
{
io_t* p = _handleToPtr(h);
return p->serialN;
}
const char* cw::io::serialDeviceName( handle_t h, unsigned devIdx )
{
io_t* p = _handleToPtr(h);
return p->serialA[devIdx].name;
}
unsigned cw::io::serialDeviceIndex( handle_t h, const char* name )
{
io_t* p = _handleToPtr(h);
for(unsigned i=0; i<p->serialN; ++i)
if( textCompare(name,p->serialA[i].name) == 0 )
return i;
return kInvalidIdx;
}
cw::rc_t cw::io::serialDeviceSend( handle_t h, unsigned devIdx, const void* byteA, unsigned byteN )
{
rc_t rc = kOkRC;
//io_t* p = _handleToPtr(h);
return rc;
}
//----------------------------------------------------------------------------------------------------------
//
// MIDI
//
unsigned cw::io::midiDeviceCount( handle_t h )
{
io_t* p = _handleToPtr(h);
return midi::device::count(p->midiH);
}
const char* cw::io::midiDeviceName( handle_t h, unsigned devIdx )
{
io_t* p = _handleToPtr(h);
return midi::device::name(p->midiH,devIdx);
}
unsigned cw::io::midiDeviceIndex( handle_t h, const char* devName )
{
io_t* p = _handleToPtr(h);
return midi::device::nameToIndex(p->midiH, devName);
}
unsigned cw::io::midiDevicePortCount( handle_t h, unsigned devIdx, bool inputFl )
{
io_t* p = _handleToPtr(h);
return midi::device::portCount(p->midiH, devIdx, inputFl ? midi::kInMpFl : midi::kOutMpFl );
}
const char* cw::io::midiDevicePortName( handle_t h, unsigned devIdx, bool inputFl, unsigned portIdx )
{
io_t* p = _handleToPtr(h);
return midi::device::portName( p->midiH, devIdx, inputFl ? midi::kInMpFl : midi::kOutMpFl, portIdx );
}
unsigned cw::io::midiDevicePortIndex( handle_t h, unsigned devIdx, bool inputFl, const char* portName )
{
io_t* p = _handleToPtr(h);
return midi::device::portNameToIndex( p->midiH, devIdx, inputFl ? midi::kInMpFl : midi::kOutMpFl, portName );
}
cw::rc_t cw::io::midiDeviceSend( handle_t h, unsigned devIdx, unsigned portIdx, uint8_t status, uint8_t d0, uint8_t d1 )
{
rc_t rc = kOkRC;
//io_t* p = _handleToPtr(h);
//return midi::device::send( p->midiH, devIdx, portIdx, status, d0, d1 );
return rc;
}
//----------------------------------------------------------------------------------------------------------
//
// Audio
//
unsigned cw::io::audioDeviceCount( handle_t h )
{
io_t* p = _handleToPtr(h);
return audio::device::count(p->audioH);
}
unsigned cw::io::audioDeviceLabelToIndex( handle_t h, const char* label )
{
io_t* p = _handleToPtr(h);
return audio::device::labelToIndex(p->audioH,label);
}
const char* cw::io::audioDeviceLabel( handle_t h, unsigned devIdx )
{
io_t* p = _handleToPtr(h);
assert( devIdx < audioDeviceCount(h) );
return audio::device::label(p->audioH,devIdx);
}
//----------------------------------------------------------------------------------------------------------
//
// Socket
//
//----------------------------------------------------------------------------------------------------------
//
// WebSocket
//
//----------------------------------------------------------------------------------------------------------
//
// UI
//
unsigned cw::io::uiFindElementAppId( handle_t h, unsigned parentUuId, const char* eleName )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
return ui::findElementAppId(uiH, parentUuId, eleName );
return kInvalidId;
}
unsigned cw::io::uiFindElementUuId( handle_t h, unsigned parentUuId, const char* eleName )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
return ui::findElementUuId(uiH, parentUuId, eleName );
return kInvalidId;
}
const char* cw::io::uiFindElementName( handle_t h, unsigned uuId )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
return ui::findElementName(uiH, uuId );
return nullptr;
}
unsigned cw::io::uiFindElementAppId( handle_t h, unsigned uuId )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
return ui::findElementAppId(uiH, uuId );
return kInvalidId;
}
unsigned cw::io::uiFindElementUuId( handle_t h, const char* eleName )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
return ui::findElementUuId(uiH, eleName );
return kInvalidId;
}
cw::rc_t cw::io::uiCreateFromObject( handle_t h, const object_t* o, unsigned wsSessId, unsigned parentUuId, const char* eleName)
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
rc = ui::createFromObject(uiH,o,wsSessId,parentUuId,eleName);
return rc;
}
cw::rc_t cw::io::uiCreateFromFile( handle_t h, const char* fn, unsigned wsSessId, unsigned parentUuId)
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
rc = ui::createFromFile(uiH,fn,wsSessId,parentUuId);
return rc;
}
cw::rc_t cw::io::uiCreateFromText( handle_t h, const char* text, unsigned wsSessId, unsigned parentUuId)
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
rc = ui::createFromText(uiH,text,wsSessId,parentUuId);
return rc;
}
cw::rc_t cw::io::uiCreateDiv( handle_t h, unsigned& uuIdRef, unsigned wsSessId, unsigned parentUuId, const char* eleName, unsigned appId, const char* clas, const char* title )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
rc = ui::createDiv(uiH,uuIdRef,wsSessId,parentUuId,eleName,appId,clas,title);
return rc;
}
cw::rc_t cw::io::uiCreateTitle( handle_t h, unsigned& uuIdRef, unsigned wsSessId, unsigned parentUuId, const char* eleName, unsigned appId, const char* clas, const char* title )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
rc = ui::createTitle(uiH,uuIdRef,wsSessId,parentUuId,eleName,appId,clas,title);
return rc;
}
cw::rc_t cw::io::uiCreateButton( handle_t h, unsigned& uuIdRef, unsigned wsSessId, unsigned parentUuId, const char* eleName, unsigned appId, const char* clas, const char* title )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
rc = ui::createButton(uiH,uuIdRef,wsSessId,parentUuId,eleName,appId,clas,title);
return rc;
}
cw::rc_t cw::io::uiCreateCheck( handle_t h, unsigned& uuIdRef, unsigned wsSessId, unsigned parentUuId, const char* eleName, unsigned appId, const char* clas, const char* title )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
rc = ui::createCheck(uiH,uuIdRef,wsSessId,parentUuId,eleName,appId,clas,title);
return rc;
}
cw::rc_t cw::io::uiCreateCheck( handle_t h, unsigned& uuIdRef, unsigned wsSessId, unsigned parentUuId, const char* eleName, unsigned appId, const char* clas, const char* title, bool value )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
rc = ui::createCheck(uiH,uuIdRef,wsSessId,parentUuId,eleName,appId,clas,title,value);
return rc;
}
cw::rc_t cw::io::uiCreateSelect( handle_t h, unsigned& uuIdRef, unsigned wsSessId, unsigned parentUuId, const char* eleName, unsigned appId, const char* clas, const char* title )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
rc = ui::createSelect(uiH,uuIdRef,wsSessId,parentUuId,eleName,appId,clas,title);
return rc;
}
cw::rc_t cw::io::uiCreateOption( handle_t h, unsigned& uuIdRef, unsigned wsSessId, unsigned parentUuId, const char* eleName, unsigned appId, const char* clas, const char* title )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
rc = ui::createOption(uiH,uuIdRef,wsSessId,parentUuId,eleName,appId,clas,title);
return rc;
}
cw::rc_t cw::io::uiCreateStr( handle_t h, unsigned& uuIdRef, unsigned wsSessId, unsigned parentUuId, const char* eleName, unsigned appId, const char* clas, const char* title )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
rc = ui::createStr(uiH,uuIdRef,wsSessId,parentUuId,eleName,appId,clas,title);
return rc;
}
cw::rc_t cw::io::uiCreateStr( handle_t h, unsigned& uuIdRef, unsigned wsSessId, unsigned parentUuId, const char* eleName, unsigned appId, const char* clas, const char* title, const char* value )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
rc = ui::createStr(uiH,uuIdRef,wsSessId,parentUuId,eleName,appId,clas,title,value);
return rc;
}
cw::rc_t cw::io::uiCreateNumbDisplay(handle_t h, unsigned& uuIdRef, unsigned wsSessId, unsigned parentUuId, const char* eleName, unsigned appId, const char* clas, const char* title, unsigned decPl )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
rc = ui::createNumbDisplay(uiH,uuIdRef,wsSessId,parentUuId,eleName,appId,clas,title,decPl);
return rc;
}
cw::rc_t cw::io::uiCreateNumbDisplay(handle_t h, unsigned& uuIdRef, unsigned wsSessId, unsigned parentUuId, const char* eleName, unsigned appId, const char* clas, const char* title, unsigned decPl, double value )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
rc = ui::createNumbDisplay(uiH,uuIdRef,wsSessId,parentUuId,eleName,appId,clas,title,value);
return rc;
}
cw::rc_t cw::io::uiCreateNumb( handle_t h, unsigned& uuIdRef, unsigned wsSessId, unsigned parentUuId, const char* eleName, unsigned appId, const char* clas, const char* title, double minValue, double maxValue, double stepValue, unsigned decPl )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
rc = ui::createNumb(uiH,uuIdRef,wsSessId,parentUuId,eleName,appId,clas,title,minValue,maxValue,stepValue,decPl);
return rc;
}
cw::rc_t cw::io::uiCreateNumb( handle_t h, unsigned& uuIdRef, unsigned wsSessId, unsigned parentUuId, const char* eleName, unsigned appId, const char* clas, const char* title, double minValue, double maxValue, double stepValue, unsigned decPl, double value )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
rc = ui::createNumb(uiH,uuIdRef,wsSessId,parentUuId,eleName,appId,clas,title,minValue,maxValue,stepValue,decPl,value);
return rc;
}
cw::rc_t cw::io::uiCreateProg( handle_t h, unsigned& uuIdRef, unsigned wsSessId, unsigned parentUuId, const char* eleName, unsigned appId, const char* clas, const char* title, double minValue, double maxValue )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
rc = ui::createProg(uiH,uuIdRef,wsSessId,parentUuId,eleName,appId,clas,title,minValue,maxValue);
return rc;
}
cw::rc_t cw::io::uiCreateProg( handle_t h, unsigned& uuIdRef, unsigned wsSessId, unsigned parentUuId, const char* eleName, unsigned appId, const char* clas, const char* title, double minValue, double maxValue, double value )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
rc = ui::createProg(uiH,uuIdRef,wsSessId,parentUuId,eleName,appId,clas,title,minValue,maxValue,value);
return rc;
}
cw::rc_t cw::io::uiCreateText( handle_t h, unsigned& uuIdRef, unsigned wsSessId, unsigned parentUuId, const char* eleName, unsigned appId, const char* clas, const char* title )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
rc = ui::createText(uiH,uuIdRef,wsSessId,parentUuId,eleName,appId,clas,title);
return rc;
}
cw::rc_t cw::io::uiRegisterAppIdMap( handle_t h, const ui::appIdMap_t* map, unsigned mapN )
{
rc_t rc;
ui::handle_t uiH;
if((rc = _handleToUiHandle(h,uiH)) == kOkRC )
rc = ui::registerAppIdMap(uiH,map,mapN);
return rc;
}