cwIoFlowCtl.h/cpp, Makefile.am : Initial commit.

This commit is contained in:
kevin 2024-06-10 16:39:17 -04:00
parent fb1524ee97
commit 1d98f0088e
3 changed files with 768 additions and 2 deletions

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@ -71,8 +71,8 @@ if cwWEBSOCK
libcwHDR += src/libcw/cwIo.h src/libcw/cwIoTest.h src/libcw/cwIoMinTest.h src/libcw/cwIoSocketChat.h src/libcw/cwIoAudioPanel.h src/libcw/cwIoAudioMidi.h libcwHDR += src/libcw/cwIo.h src/libcw/cwIoTest.h src/libcw/cwIoMinTest.h src/libcw/cwIoSocketChat.h src/libcw/cwIoAudioPanel.h src/libcw/cwIoAudioMidi.h
libcwSRC += src/libcw/cwIo.cpp src/libcw/cwIoTest.cpp src/libcw/cwIoMinTest.cpp src/libcw/cwIoSocketChat.cpp src/libcw/cwIoAudioPanel.cpp src/libcw/cwIoAudioMidi.cpp libcwSRC += src/libcw/cwIo.cpp src/libcw/cwIoTest.cpp src/libcw/cwIoMinTest.cpp src/libcw/cwIoSocketChat.cpp src/libcw/cwIoAudioPanel.cpp src/libcw/cwIoAudioMidi.cpp
libcwHDR += src/libcw/cwIoMidiRecordPlay.h src/libcw/cwIoAudioRecordPlay.h src/libcw/cwIoAudioMidiApp.h src/libcw/cwIoFlow.h libcwHDR += src/libcw/cwIoMidiRecordPlay.h src/libcw/cwIoAudioRecordPlay.h src/libcw/cwIoAudioMidiApp.h src/libcw/cwIoFlow.h src/libcw/cwIoFlowCtl.h
libcwSRC += src/libcw/cwIoMidiRecordPlay.cpp src/libcw/cwIoAudioRecordPlay.cpp src/libcw/cwIoAudioMidiApp.cpp src/libcw/cwIoFlow.cpp libcwSRC += src/libcw/cwIoMidiRecordPlay.cpp src/libcw/cwIoAudioRecordPlay.cpp src/libcw/cwIoAudioMidiApp.cpp src/libcw/cwIoFlow.cpp src/libcw/cwIoFlowCtl.cpp
libcwHDR += src/libcw/cwIoPresetSelApp.h src/libcw/cwPianoScore.h src/libcw/cwPresetSel.h src/libcw/cwVelTableTuner.h src/libcw/cwGutimReg.h libcwHDR += src/libcw/cwIoPresetSelApp.h src/libcw/cwPianoScore.h src/libcw/cwPresetSel.h src/libcw/cwVelTableTuner.h src/libcw/cwGutimReg.h
libcwSRC += src/libcw/cwIoPresetSelApp.cpp src/libcw/cwPianoScore.cpp src/libcw/cwPresetSel.cpp src/libcw/cwVelTableTuner.cpp src/libcw/cwGutimReg.cpp libcwSRC += src/libcw/cwIoPresetSelApp.cpp src/libcw/cwPianoScore.cpp src/libcw/cwPresetSel.cpp src/libcw/cwVelTableTuner.cpp src/libcw/cwGutimReg.cpp

714
cwIoFlowCtl.cpp Normal file
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@ -0,0 +1,714 @@
#include "cwCommon.h"
#include "cwLog.h"
#include "cwCommonImpl.h"
#include "cwTest.h"
#include "cwMem.h"
#include "cwText.h"
#include "cwObject.h"
#include "cwFileSys.h"
#include "cwFile.h"
#include "cwTime.h"
#include "cwVectOps.h"
#include "cwMtx.h"
#include "cwTime.h"
#include "cwMidiDecls.h"
#include "cwTime.h"
#include "cwMidiDecls.h"
#include "cwDspTypes.h"
#include "cwFlowDecl.h"
#include "cwFlow.h"
#include "cwFlowTypes.h"
#include "cwIo.h"
#include "cwIoFlowCtl.h"
namespace cw
{
namespace io_flow_ctl
{
// An audio_dev_t record exists for each possible input or output device.
typedef struct audio_dev_str
{
unsigned ioDevIdx; // device index in the io:: API
unsigned ioDevId; // device id in the io:: API
flow::abuf_t abuf; // src/dst buffer for incoming/outgoing (record/play) samples used by flow proc 'audio_in' and 'audio_out'.
} audio_dev_t;
typedef struct audio_group_str
{
double srate;
unsigned dspFrameCnt;
unsigned ioGroupIdx;
audio_dev_t* iDeviceA;
unsigned iDeviceN;
audio_dev_t* oDeviceA;
unsigned oDeviceN;
} audio_group_t;
typedef struct pgm_str
{
const char* label;
const object_t* cfg;
} pgm_t;
typedef struct io_flow_ctl_str
{
const char* base_dir;
object_t* proc_class_dict_cfg;
object_t* subnet_dict_cfg;
io::handle_t ioH;
flow::external_device_t* deviceA; // Array of generic device descriptions used by the ioFlow controller
unsigned deviceN; // (This array must exist for the life of ioFlow controller)
audio_group_t* audioGroupA; // Array of real time audio device control records.
unsigned audioGroupN; //
pgm_t* pgmA; // pgmA[ pgmN ]
unsigned pgmN;
unsigned pgm_idx;
flow::handle_t flowH;
char* proj_dir;
} io_flow_ctl_t;
io_flow_ctl_t* _handleToPtr( handle_t h )
{ return handleToPtr<handle_t,io_flow_ctl_t>(h); }
rc_t _program_unload( io_flow_ctl_t* p )
{
rc_t rc;
if((rc = destroy(p->flowH)) != kOkRC )
{
rc = cwLogError(rc,"Program unload failed.");
goto errLabel;
}
mem::release(p->proj_dir);
p->pgm_idx = kInvalidIdx;
errLabel:
return rc;
}
rc_t _destroy( io_flow_ctl_t* p )
{
rc_t rc = kOkRC;
destroy( p->flowH );
mem::release(p->deviceA);
p->deviceN = 0;
for(unsigned gi=0; gi<p->audioGroupN; ++gi)
{
audio_group_t* ag = p->audioGroupA + gi;
for(unsigned di=0; di<ag->iDeviceN; ++di)
mem::release( ag->iDeviceA[di].abuf.buf );
for(unsigned di=0; di<ag->oDeviceN; ++di)
mem::release( ag->oDeviceA[di].abuf.buf );
mem::release( ag->iDeviceA);
mem::release( ag->oDeviceA);
}
mem::release(p->audioGroupA);
if( p->proc_class_dict_cfg != nullptr )
p->proc_class_dict_cfg->free();
if( p->subnet_dict_cfg != nullptr )
p->subnet_dict_cfg->free();
_program_unload(p);
p->pgmN = 0;
mem::release(p->pgmA);
mem::release(p);
return rc;
}
rc_t _validate_pgm_idx( io_flow_ctl_t* p, unsigned pgm_idx )
{
rc_t rc = kOkRC;
if( pgm_idx == kInvalidIdx || pgm_idx >= p->pgmN )
{
rc = cwLogError(kInvalidArgRC,"The program index '%i' is invalid. Program count=%i.",pgm_idx,p->pgmN);
goto errLabel;
}
errLabel:
return rc;
}
rc_t _parse_cfg( io_flow_ctl_t* p, const object_t* cfg )
{
rc_t rc = kOkRC;
const char* proc_cfg_fname = nullptr;
const char* subnet_cfg_fname = nullptr;
const object_t* pgmL = nullptr;
// parse the cfg parameters
if((rc = cfg->readv("base_dir", kReqFl, p->base_dir,
"proc_dict", kReqFl, proc_cfg_fname,
"subnet_dict", kReqFl, subnet_cfg_fname,
"programs", kDictTId, pgmL)) != kOkRC )
{
rc = cwLogError(rc,"'caw' system parameter processing failed.");
goto errLabel;
}
// parse the proc dict. file
if((rc = objectFromFile(proc_cfg_fname,p->proc_class_dict_cfg)) != kOkRC )
{
rc = cwLogError(rc,"The flow proc dictionary could not be read from '%s'.",cwStringNullGuard(proc_cfg_fname));
goto errLabel;
}
// parse the subnet dict file
if((rc = objectFromFile(subnet_cfg_fname,p->subnet_dict_cfg)) != kOkRC )
{
rc = cwLogError(rc,"The flow subnet dictionary could not be read from '%s'.",cwStringNullGuard(subnet_cfg_fname));
goto errLabel;
}
p->pgmN = pgmL->child_count();
p->pgmA = mem::allocZ<pgm_t>(p->pgmN);
// find the parameters for the requested program
for(unsigned i=0; i<p->pgmN; i++)
{
const object_t* pgm = pgmL->child_ele(i);
if( pgm->pair_label()==nullptr || pgm->pair_value()==nullptr || !pgm->pair_value()->is_dict() )
{
rc = cwLogError(kSyntaxErrorRC,"The program at index %i has a syntax error.",i);
goto errLabel;
}
p->pgmA[i].label = pgm->pair_label();
p->pgmA[i].cfg = pgm->pair_value();
}
errLabel:
return rc;
}
unsigned _calc_device_count(io_flow_ctl_t* p)
{
unsigned devN = 0;
devN += socketCount(p->ioH);
devN += serialDeviceCount(p->ioH);
unsigned midiDevN = midiDeviceCount(p->ioH);
for(unsigned i=0; i<midiDevN; ++i)
devN += midiDevicePortCount(p->ioH,i,true) + midiDevicePortCount(p->ioH,i,false);
for(unsigned i=0; i<p->audioGroupN; ++i)
devN += p->audioGroupA[i].iDeviceN + p->audioGroupA[i].oDeviceN;
return devN;
}
void _setup_audio_device( io_flow_ctl_t* p,audio_dev_t* dev, unsigned inOrOutFl, unsigned ioDevIdx, unsigned dspFrameCnt )
{
dev->ioDevIdx = ioDevIdx;
dev->ioDevId = audioDeviceUserId( p->ioH, ioDevIdx );
dev->abuf.srate = audioDeviceSampleRate( p->ioH, ioDevIdx );
dev->abuf.chN = audioDeviceChannelCount( p->ioH, ioDevIdx, inOrOutFl );
dev->abuf.frameN = dspFrameCnt;
dev->abuf.buf = mem::allocZ< flow::sample_t >( dev->abuf.chN * dev->abuf.frameN );
//printf("%i %s\n", dev->abuf.chN, audioDeviceLabel( p->ioH, ioDevIdx ) );
}
void _setup_audio_groups( io_flow_ctl_t* p )
{
p->audioGroupN = audioGroupCount( p->ioH );
p->audioGroupA = mem::allocZ<audio_group_t>( p->audioGroupN );
for(unsigned gi=0; gi<audioGroupCount(p->ioH); ++gi)
{
audio_group_t* ag = p->audioGroupA + gi;
ag->srate = audioGroupSampleRate( p->ioH, gi );
ag->dspFrameCnt = audioGroupDspFrameCount( p->ioH, gi );
ag->ioGroupIdx = gi;
ag->iDeviceN = audioGroupDeviceCount( p->ioH, gi, io::kInFl );
ag->iDeviceA = mem::allocZ< audio_dev_t >( ag->iDeviceN );
for(unsigned gdi=0; gdi<ag->iDeviceN; ++gdi)
_setup_audio_device( p, ag->iDeviceA + gdi, io::kInFl, audioGroupDeviceIndex( p->ioH, gi, io::kInFl, gdi), ag->dspFrameCnt );
ag->oDeviceN = audioGroupDeviceCount( p->ioH, gi, io::kOutFl );
ag->oDeviceA = mem::allocZ< audio_dev_t >( ag->oDeviceN );
for(unsigned gdi=0; gdi<ag->oDeviceN; ++gdi)
_setup_audio_device( p, ag->oDeviceA + gdi, io::kOutFl, audioGroupDeviceIndex( p->ioH, gi, io::kOutFl, gdi), ag->dspFrameCnt );
}
}
rc_t _send_midi_triple( flow::external_device_t* dev, uint8_t ch, uint8_t status, uint8_t d0, uint8_t d1 )
{
return midiDeviceSend(((io_flow_ctl_t*)dev->reserved)->ioH, dev->ioDevIdx, dev->ioPortIdx, status |= ch, d0, d1);
}
void _setup_device_cfg( io_flow_ctl_t* p, flow::external_device_t* d, const char* devLabel, unsigned ioDevIdx, unsigned typeId, unsigned flags, const char* midiPortLabel=nullptr, unsigned midiPortIdx=kInvalidIdx )
{
d->reserved = p;
d->devLabel = devLabel;
d->portLabel = midiPortLabel;
d->typeId = typeId;
d->flags = flags;
d->ioDevIdx = ioDevIdx;
d->ioPortIdx = midiPortIdx;
}
void _setup_midi_device_cfg( io_flow_ctl_t* p, flow::external_device_t* d, const char* devLabel, unsigned ioDevIdx, unsigned flags, unsigned ioMidiPortIdx )
{
const char* midiPortLabel = io::midiDevicePortName(p->ioH,ioDevIdx, flags & flow::kInFl ? true : false,ioMidiPortIdx);
_setup_device_cfg( p, d, devLabel, ioDevIdx, flow::kMidiDevTypeId, flags, midiPortLabel, ioMidiPortIdx );
d->u.m.maxMsgCnt = io::midiDeviceMaxBufferMsgCount(p->ioH);
d->u.m.sendTripleFunc = _send_midi_triple;
}
void _setup_audio_device_cfg( io_flow_ctl_t* p, flow::external_device_t* d, audio_group_t* ag, audio_dev_t* ad, unsigned flags )
{
_setup_device_cfg( p, d, io::audioDeviceLabel(p->ioH,ad->ioDevIdx), ad->ioDevIdx, flow::kAudioDevTypeId, flags );
// Each audio device is given a flow::abuf to hold incoming or outgoing audio.
// This buffer also allows the 'audio_in' and 'audio_out' flow procs to configure themselves.
d->u.a.abuf = &ad->abuf;
}
void _setup_generic_device_array( io_flow_ctl_t* p )
{
unsigned i = 0;
// allocate the generic device control records
p->deviceN = _calc_device_count(p);
p->deviceA = mem::allocZ<flow::external_device_t>( p->deviceN );
// get serial devices
for(unsigned di=0; i<p->deviceN && di<serialDeviceCount(p->ioH); ++di,++i)
_setup_device_cfg( p, p->deviceA + i, io::serialDeviceLabel(p->ioH,di), di, flow::kSerialDevTypeId, flow::kInFl | flow::kOutFl );
// get sockets
for(unsigned di=0; i<p->deviceN && di<socketCount(p->ioH); ++di,++i)
_setup_device_cfg( p, p->deviceA + i, io::socketLabel(p->ioH,di), di, flow::kSocketDevTypeId, flow::kInFl | flow::kOutFl );
// get midi devices
for(unsigned di=0; i<p->deviceN && di<midiDeviceCount(p->ioH); ++di)
{
// input port setup
for(unsigned pi=0; pi<midiDevicePortCount(p->ioH,di,true); ++pi,++i)
_setup_midi_device_cfg( p, p->deviceA + i, io::midiDeviceName(p->ioH,di), di, flow::kInFl, pi);
// output port setup
for(unsigned pi=0; pi<midiDevicePortCount(p->ioH,di,false); ++pi,++i)
_setup_midi_device_cfg( p, p->deviceA + i, io::midiDeviceName(p->ioH,di), di, flow::kOutFl, pi);
}
// get the audio devices
for(unsigned gi=0; gi<p->audioGroupN; ++gi)
{
audio_group_t* ag = p->audioGroupA + gi;
for(unsigned di=0; i<p->deviceN && di<ag->iDeviceN; ++di,++i)
_setup_audio_device_cfg( p, p->deviceA + i, ag, ag->iDeviceA + di, flow::kInFl );
for(unsigned di=0; i<p->deviceN && di<ag->oDeviceN; ++di,++i)
_setup_audio_device_cfg( p, p->deviceA + i, ag, ag->oDeviceA + di, flow::kOutFl );
}
assert( i == p->deviceN );
}
rc_t _device_index_to_abuf( io_flow_ctl_t* p, unsigned ioGroupIdx, unsigned ioDevIdx, unsigned inOrOutFl, flow::abuf_t*& abuf_ref )
{
rc_t rc = kOkRC;
for(unsigned gi=0; gi<p->audioGroupN; ++gi)
if( p->audioGroupA[gi].ioGroupIdx == ioGroupIdx )
{
audio_dev_t* adA = inOrOutFl == flow::kInFl ? p->audioGroupA[gi].iDeviceA : p->audioGroupA[gi].oDeviceA;
unsigned adN = inOrOutFl == flow::kInFl ? p->audioGroupA[gi].iDeviceN : p->audioGroupA[gi].oDeviceN;
for(unsigned di=0; di<adN; ++di)
if( adA[di].ioDevIdx == ioDevIdx )
{
abuf_ref = &adA[di].abuf;
return rc;
}
}
const char* dir = inOrOutFl==flow::kInFl ? "in" : "out";
return cwLogError(kOpFailRC,"The '%s' audio group index:%i ,device index '%i' was not found.", dir, ioGroupIdx, ioDevIdx);
}
void _fill_input_buffer( flow::sample_t** bufChArray, unsigned bufChArrayN, flow::abuf_t* dst_abuf )
{
for(unsigned i=0; i<bufChArrayN; ++i)
{
const flow::sample_t* src = bufChArray[i];
flow::sample_t* dst = dst_abuf->buf + (i*dst_abuf->frameN);
memcpy(dst,src,dst_abuf->frameN*sizeof(flow::sample_t));
}
}
void _zero_output_buffer( flow::abuf_t* dst_abuf )
{
memset(dst_abuf->buf,0, dst_abuf->chN*dst_abuf->frameN*sizeof(flow::sample_t));
}
void _fill_output_buffer( const flow::abuf_t* src_abuf, flow::sample_t** bufChArray, unsigned bufChArrayN )
{
for(unsigned i=0; i<src_abuf->chN; ++i)
{
const flow::sample_t* src = src_abuf->buf + (i*src_abuf->frameN);
flow::sample_t* dst = bufChArray[i];
memcpy(dst,src,src_abuf->frameN*sizeof(flow::sample_t));
}
}
rc_t _audio_callback( io_flow_ctl_t* p, io::audio_msg_t& m )
{
rc_t rc = kOkRC;
flow::abuf_t* abuf = nullptr;
// Get an array of incoming MIDI events which have occurred since the last call to 'io::midiDeviceBuffer()'
unsigned midiBufMsgCnt = 0;
const midi::ch_msg_t* midiBuf = midiDeviceBuffer(p->ioH,midiBufMsgCnt);
// Give each MIDI input device a pointer to the incoming MIDI msgs
for(unsigned i=0; i<p->deviceN; ++i)
if( p->deviceA[i].typeId == flow::kMidiDevTypeId && cwIsFlag(p->deviceA[i].flags,flow::kInFl) )
{
p->deviceA[i].u.m.msgArray = midiBuf;
p->deviceA[i].u.m.msgCnt = midiBufMsgCnt;
}
// if there is incoming (recorded) audio
if( m.iBufChCnt > 0 )
{
unsigned chIdx = 0;
// for each input device in this group
for(io::audio_group_dev_t* agd = m.iDevL; agd!=nullptr; agd=agd->link)
{
// get the abuf associated with each device in this group
if((rc = _device_index_to_abuf( p, m.groupIndex, agd->devIdx, flow::kInFl, abuf )) != kOkRC )
goto errLabel;
// fill the input audio buf from the the external audio device
_fill_input_buffer( m.iBufArray + chIdx, agd->chCnt, abuf );
chIdx += agd->chCnt;
}
}
// if there are empty output (playback) buffers
if( m.oBufChCnt > 0 )
{
// for each output device in this group
for(io::audio_group_dev_t* agd=m.oDevL; agd!=nullptr; agd=agd->link)
{
// get the output audio buf associated with this external audio device
if((rc = _device_index_to_abuf( p, m.groupIndex, agd->devIdx, flow::kOutFl, abuf )) != kOkRC )
goto errLabel;
// zerot the output buffer
_zero_output_buffer( abuf );
}
}
// update the flow network - this will generate audio into the output audio buffers
flow::exec_cycle(p->flowH);
// if there are empty output (playback) buffers
if( m.oBufChCnt > 0 )
{
unsigned chIdx = 0;
// for each output device in this group
for(io::audio_group_dev_t* agd=m.oDevL; agd!=nullptr; agd=agd->link)
{
// get the output audio buf associated with this external audio device
if((rc = _device_index_to_abuf( p, m.groupIndex, agd->devIdx, flow::kOutFl, abuf )) != kOkRC )
goto errLabel;
// copy the samples from the flow 'audio_out' buffers to the outgoing buffer passed from the device driver
_fill_output_buffer( abuf, m.oBufArray + chIdx, agd->chCnt );
chIdx += agd->chCnt;
}
}
errLabel:
// Drop the MIDI messages that were processed on this call.
midiDeviceClearBuffer(p->ioH,midiBufMsgCnt);
return rc;
}
}
}
cw::rc_t cw::io_flow_ctl::create( handle_t& hRef, io::handle_t ioH, const object_t* flow_cfg )
{
rc_t rc = kOkRC;
if((rc = destroy(hRef)) != kOkRC )
return rc;
io_flow_ctl_t* p = mem::allocZ<io_flow_ctl_t>();
p->pgm_idx = kInvalidIdx;
p->ioH = ioH;
if((rc = _parse_cfg(p,flow_cfg)) != kOkRC )
goto errLabel;
// allocate p->audioGroupA[] and create the audio input/output buffers associated with each audio device
_setup_audio_groups(p);
// setup the control record for each external device known to the IO interface
_setup_generic_device_array(p);
hRef.set(p);
errLabel:
if( rc != kOkRC )
{
rc = cwLogError(rc,"io_flow create failed.");
_destroy(p);
}
return rc;
}
cw::rc_t cw::io_flow_ctl::destroy( handle_t& hRef )
{
rc_t rc = kOkRC;
io_flow_ctl_t* p = nullptr;
if(!hRef.isValid())
return rc;
p = _handleToPtr(hRef);
if((rc = _destroy(p)) != kOkRC )
goto errLabel;
hRef.clear();
errLabel:
return rc;
}
unsigned cw::io_flow_ctl::program_count(handle_t h)
{
io_flow_ctl_t* p = _handleToPtr(h);
return p->pgmN;
}
const char* cw::io_flow_ctl::program_title( handle_t h, unsigned pgm_idx )
{
io_flow_ctl_t* p = _handleToPtr(h);
const char* pgm_title = nullptr;
if(_validate_pgm_idx(p,pgm_idx) != kOkRC )
goto errLabel;
pgm_title = p->pgmA[pgm_idx].label;
errLabel:
return pgm_title;
}
unsigned cw::io_flow_ctl::program_index( handle_t h, const char* pgm_title )
{
io_flow_ctl_t* p = _handleToPtr(h);
for(unsigned i=0; i<p->pgmN; ++i)
if( textIsEqual(pgm_title,p->pgmA[i].label) )
return i;
return kInvalidIdx;
}
cw::rc_t cw::io_flow_ctl::program_load( handle_t h, unsigned pgm_idx )
{
rc_t rc = kOkRC;
io_flow_ctl_t* p = _handleToPtr(h);
if((rc = _validate_pgm_idx(p,pgm_idx)) != kOkRC )
goto errLabel;
if((rc = _program_unload(p)) != kOkRC )
goto errLabel;
// form the program project directory
if((p->proj_dir = filesys::makeFn(p->base_dir,nullptr,nullptr,p->pgmA[pgm_idx].label,nullptr)) == nullptr )
{
rc = cwLogError(kOpFailRC,"The project directory formation failed.");
goto errLabel;
}
if( !filesys::isDir(p->proj_dir) )
if((rc = filesys::makeDir(p->proj_dir)) != kOkRC )
goto errLabel;
// create the flow object
if((rc = create( p->flowH,
p->proc_class_dict_cfg,
p->pgmA[ pgm_idx ].cfg,
p->subnet_dict_cfg,
p->proj_dir,
p->deviceA,
p->deviceN)) != kOkRC )
{
rc = cwLogError(rc,"Flow object create failed.");
goto errLabel;
}
p->pgm_idx = pgm_idx;
errLabel:
return rc;
}
unsigned cw::io_flow_ctl::program_current_index( handle_t h )
{
io_flow_ctl_t* p = _handleToPtr(h);
return p->pgm_idx;
}
cw::rc_t cw::io_flow_ctl::program_reset( handle_t h )
{
return kOkRC;
}
bool cw::io_flow_ctl::is_program_nrt( handle_t h )
{
io_flow_ctl_t* p = _handleToPtr(h);
bool nrt_fl = false;
if( !p->flowH.isValid() )
{
cwLogWarning("No program is loaded.");
goto errLabel;
}
if(_validate_pgm_idx(p,p->pgm_idx) != kOkRC )
goto errLabel;
nrt_fl = is_non_real_time(p->flowH);
errLabel:
return nrt_fl;
}
cw::rc_t cw::io_flow_ctl::exec_nrt( handle_t h )
{
rc_t rc = kOkRC;
io_flow_ctl_t* p = _handleToPtr(h);
if( p->pgm_idx == kInvalidIdx )
{
rc = cwLogWarning("No program is loaded.");
goto errLabel;
}
if((rc = exec( p->flowH )) != kOkRC )
{
rc = cwLogError(rc,"%s execution failed.", cwStringNullGuard(p->pgmA[p->pgm_idx].label));
goto errLabel;
}
errLabel:
return rc;
}
unsigned cw::io_flow_ctl::preset_count( handle_t h )
{
return 0;
}
const char* cw::io_flow_ctl::preset_title( handle_t h, unsigned preset_idx )
{
return nullptr;
}
cw::rc_t cw::io_flow_ctl::preset_apply( handle_t h, unsigned preset_idx )
{
return kOkRC;
}
cw::rc_t cw::io_flow_ctl::exec( handle_t h, const io::msg_t& msg )
{
rc_t rc = kOkRC;
io_flow_ctl_t* p = _handleToPtr(h);
switch( msg.tid )
{
case io::kAudioTId:
if( msg.u.audio != nullptr )
_audio_callback(p,*msg.u.audio);
break;
default:
rc = kOkRC;
}
return rc;
}
void cw::io_flow_ctl::report( handle_t h )
{
io_flow_ctl_t* p = _handleToPtr(h);
if( p->flowH.isValid() )
print_network(p->flowH);
}
void cw::io_flow_ctl::print_network( handle_t h )
{
io_flow_ctl_t* p = _handleToPtr(h);
if( p->flowH.isValid() )
print_network(p->flowH);
}

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cwIoFlowCtl.h Normal file
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#ifndef cwIoFlowCtl_H
#define cwIoFlowCtl_H
namespace cw
{
namespace io_flow_ctl
{
typedef handle< struct io_flow_ctl_str > handle_t;
rc_t create( handle_t& hRef, io::handle_t ioH, const char* flow_cfg_fn );
rc_t create( handle_t& hRef, io::handle_t ioH, const object_t* flow_cfg );
rc_t destroy( handle_t& hRef );
unsigned program_count( handle_t h);
const char* program_title( handle_t h, unsigned pgm_idx );
unsigned program_index( handle_t h, const char* pgm_title);
bool program_is_nrt(handle_t h, unsigned pgm_idx);
rc_t program_load( handle_t h, unsigned pgm_idx );
// Return the index of the currently loaded program or kInvalidIdx if no program is loaded.
unsigned program_current_index( handle_t h );
// Reset the the current program to it's initial state.
rc_t program_reset( handle_t h );
// Is the currently loaded program in non-real-time mode
bool is_program_nrt( handle_t h );
// Execute the currently loaded non-real-time program to completion.
rc_t exec_nrt( handle_t h );
// Return the count of network presets associated with the current program.
unsigned preset_count( handle_t h );
const char* preset_title( handle_t h, unsigned preset_idx );
rc_t preset_apply( handle_t h, unsigned preset_idx );
// Handle an incoming IO msg.
rc_t exec( handle_t h, const io::msg_t& msg );
void report( handle_t h );
void print_network( handle_t h );
}
}
#endif