a52909671f
the cmApBufGetIO() calls in _cmAsDspExecCallback(). _cmAudioSysEnable() now calls cmApBufOnPortEnable() to that cmApBuf() can be aware to when audio streaming is starting and stopping.
1429 rindas
44 KiB
C
1429 rindas
44 KiB
C
#include "cmPrefix.h"
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#include "cmGlobal.h"
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#include "cmFloatTypes.h"
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#include "cmRpt.h"
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#include "cmErr.h"
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#include "cmCtx.h"
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#include "cmMem.h"
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#include "cmMallocDebug.h"
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#include "cmTime.h"
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#include "cmAudioPort.h"
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#include "cmAudioNrtDev.h"
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#include "cmAudioPortFile.h"
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#include "cmApBuf.h"
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#include "cmJson.h"
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#include "cmThread.h"
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#include "cmUdpPort.h"
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#include "cmUdpNet.h"
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#include "cmAudioSysMsg.h"
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#include "cmAudioSys.h"
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#include "cmMidi.h"
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#include "cmMidiPort.h"
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#include "cmMath.h"
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cmAudioSysH_t cmAudioSysNullHandle = { NULL };
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struct cmAs_str;
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typedef struct
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{
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struct cmAs_str* p; // pointer to the audio system instance which owns this sub-system
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cmAudioSysSubSys_t ss; // sub-system configuration record
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cmAudioSysCtx_t ctx; // DSP context
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cmAudioSysStatus_t status; // current runtime status of this sub-system
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cmThreadH_t threadH; // audio system thread
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cmTsMp1cH_t htdQueueH; // host-to-dsp thread safe msg queue
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cmThreadMutexH_t engMutexH; // thread mutex and condition variable
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cmUdpNetH_t netH;
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bool enableFl; // application controlled pause flag
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bool runFl; // false during finalization otherwise true
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bool statusFl; // true if regular status notifications should be sent
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unsigned audCbLock; //
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bool syncInputFl;
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double* iMeterArray; //
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double* oMeterArray; //
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unsigned statusUpdateSmpCnt; // transmit a state update msg every statusUpdateSmpCnt samples
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unsigned statusUpdateSmpIdx; // state update phase
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} _cmAsCfg_t;
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typedef struct cmAs_str
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{
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cmErr_t err;
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_cmAsCfg_t* ssArray;
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unsigned ssCnt;
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unsigned waitAsSubIdx; // index of the next sub-system to try with cmAudioSysIsMsgWaiting().
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cmTsMp1cH_t dthQueH;
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bool initFl; // true if the audio system is initialized
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} cmAs_t;
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cmAs_t* _cmAsHandleToPtr( cmAudioSysH_t h )
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{
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cmAs_t* p = (cmAs_t*)h.h;
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assert(p != NULL);
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return p;
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}
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cmAsRC_t _cmAsError( cmAs_t* p, cmAsRC_t rc, const char* fmt, ... )
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{
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va_list vl;
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va_start(vl,fmt);
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cmErrVMsg(&p->err,rc,fmt,vl);
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va_end(vl);
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return rc;
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}
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// Wrapper function to put msgs into thread safe queues and handle related errors.
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cmAsRC_t _cmAsEnqueueMsg( cmAs_t* p, cmTsMp1cH_t qH, const void* msgDataPtrArray[], unsigned msgCntArray[], unsigned segCnt, const char* queueLabel )
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{
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cmAsRC_t rc = kOkAsRC;
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switch( cmTsMp1cEnqueueSegMsg(qH, msgDataPtrArray, msgCntArray, segCnt) )
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{
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case kOkThRC:
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break;
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case kBufFullThRC:
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{
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unsigned i;
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unsigned byteCnt = 0;
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for(i=0; i<segCnt; ++i)
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byteCnt += msgCntArray[i];
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rc = _cmAsError(p,kMsgEnqueueFailAsRC,"The %s queue was unable to load a msg containing %i bytes. The queue is currently allocated %i bytes and has %i bytes available.",queueLabel,byteCnt,cmTsMp1cAllocByteCount(qH),cmTsMp1cAvailByteCount(qH));
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}
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break;
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default:
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rc = _cmAsError(p,kMsgEnqueueFailAsRC,"A %s msg. enqueue failed.",queueLabel);
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}
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return rc;
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}
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// This is the function pointed to by ctx->dspToHostFunc.
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// It is called by the DSP proces to pass msgs to the host.
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// therefore it is always called from inside of _cmAsDspExecCallback().
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cmAsRC_t _cmAsDspToHostMsgCallback(struct cmAudioSysCtx_str* ctx, const void* msgDataPtrArray[], unsigned msgByteCntArray[], unsigned msgSegCnt)
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{
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cmAs_t* p = (cmAs_t*)ctx->reserved;
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assert( ctx->asSubIdx < p->ssCnt );
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//return _cmAsEnqueueMsg(p,p->ssArray[ctx->asSubIdx].dthQueueH,msgDataPtrArray,msgByteCntArray,msgSegCnt,"DSP-to-Host");
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return _cmAsEnqueueMsg(p,p->dthQueH,msgDataPtrArray,msgByteCntArray,msgSegCnt,"DSP-to-Host");
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}
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cmAsRC_t _cmAsHostInitNotify( cmAs_t* p )
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{
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cmAsRC_t rc = kOkAsRC;
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unsigned i;
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for(i=0; i<p->ssCnt; ++i)
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{
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cmAudioSysSsInitMsg_t m;
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_cmAsCfg_t* cp = p->ssArray + i;
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const char* inDevLabel = cp->ss.args.inDevIdx == cmInvalidIdx ? "" : cmApDeviceLabel( cp->ss.args.inDevIdx );
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const char* outDevLabel = cp->ss.args.outDevIdx == cmInvalidIdx ? "" : cmApDeviceLabel( cp->ss.args.outDevIdx );
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m.asSubIdx = i;
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m.selId = kSsInitSelAsId;
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m.asSubCnt = p->ssCnt;
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m.inDevIdx = cp->ss.args.inDevIdx;
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m.outDevIdx = cp->ss.args.outDevIdx;
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m.dspFramesPerCycle = cp->ss.args.dspFramesPerCycle;
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m.srate = cp->ss.args.srate;
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m.inChCnt = cp->status.iMeterCnt;
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m.outChCnt = cp->status.oMeterCnt;
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unsigned segCnt = 3;
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const void* msgDataPtrArray[] = { &m, inDevLabel, outDevLabel };
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unsigned msgByteCntArray[] = { sizeof(m), strlen(cmStringNullGuard(inDevLabel))+1, strlen(cmStringNullGuard(outDevLabel))+1 };
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assert( sizeof(msgDataPtrArray)/sizeof(void*) == segCnt);
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assert( sizeof(msgByteCntArray)/sizeof(unsigned) == segCnt);
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if((rc = _cmAsDspToHostMsgCallback(&cp->ctx, msgDataPtrArray, msgByteCntArray, segCnt)) != kOkAsRC )
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return rc;
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}
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return rc;
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}
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cmAsRC_t _cmAsParseNonSubSysMsg( cmAs_t* p, const void* msg, unsigned msgByteCnt )
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{
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cmAsRC_t rc = kOkAsRC;
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cmAudioSysMstr_t* h = (cmAudioSysMstr_t*)msg;
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unsigned devIdx = cmAudioSysUiInstIdToDevIndex(h->instId);
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unsigned chIdx = cmAudioSysUiInstIdToChIndex(h->instId);
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unsigned inFl = cmAudioSysUiInstIdToInFlag(h->instId);
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unsigned ctlId = cmAudioSysUiInstIdToCtlId(h->instId);
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// if the valuu associated with this msg is a mtx then set
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// its mtx data area pointer to just after the msg header.
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//if( cmDsvIsMtx(&h->value) )
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// h->value.u.m.u.vp = ((char*)msg) + sizeof(cmDspUiHdr_t);
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unsigned flags = inFl ? kInApFl : kOutApFl;
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switch( ctlId )
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{
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case kSliderUiAsId: // slider
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cmApBufSetGain(devIdx,chIdx, flags, h->value);
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break;
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case kMeterUiAsId: // meter
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break;
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case kMuteUiAsId: // mute
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flags += h->value == 0 ? kEnableApFl : 0;
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cmApBufEnableChannel(devIdx,chIdx,flags);
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break;
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case kToneUiAsId: // tone
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flags += h->value > 0 ? kEnableApFl : 0;
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cmApBufEnableTone(devIdx,chIdx,flags);
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break;
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case kPassUiAsId: // pass
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flags += h->value > 0 ? kEnableApFl : 0;
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cmApBufEnablePass(devIdx,chIdx,flags);
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break;
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default:
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{ assert(0); }
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}
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return rc;
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}
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// Process a UI msg sent from the host to the audio system
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cmAsRC_t _cmAsHandleNonSubSysMsg( cmAs_t* p, const void* msgDataPtrArray[], unsigned msgByteCntArray[], unsigned msgSegCnt )
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{
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cmAsRC_t rc = kOkAsRC;
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// if the message is contained in a single segment it can be dispatched immediately ...
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if( msgSegCnt == 1 )
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rc = _cmAsParseNonSubSysMsg(p,msgDataPtrArray[0],msgByteCntArray[0]);
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else
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{
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// ... otherwise deserialize the message into contiguous memory ....
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unsigned byteCnt = 0;
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unsigned i;
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for(i=0; i<msgSegCnt; ++i)
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byteCnt += msgByteCntArray[i];
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char buf[ byteCnt ];
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char* b = buf;
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for(i=0; i<msgSegCnt; ++i)
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{
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memcpy(b, msgDataPtrArray[i], msgByteCntArray[i] );
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b += msgByteCntArray[i];
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}
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// ... and then dispatch it
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rc = _cmAsParseNonSubSysMsg(p,buf,byteCnt);
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}
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return rc;
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}
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cmAsRC_t _cmAsSendStateStatusToHost( _cmAsCfg_t* cp )
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{
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cmAsRC_t rc = kOkAsRC;
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unsigned hdr[] = { cp->ctx.asSubIdx, kStatusSelAsId };
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cmApBufGetStatus( cp->ss.args.inDevIdx, kInApFl, cp->iMeterArray, cp->status.iMeterCnt, &cp->status.overflowCnt );
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cmApBufGetStatus( cp->ss.args.outDevIdx, kOutApFl, cp->oMeterArray, cp->status.oMeterCnt, &cp->status.underflowCnt );
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unsigned iMeterByteCnt = sizeof(cp->iMeterArray[0]) * cp->status.iMeterCnt;
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unsigned oMeterByteCnt = sizeof(cp->oMeterArray[0]) * cp->status.oMeterCnt;
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const void* msgDataPtrArray[] = { &hdr, &cp->status, cp->iMeterArray, cp->oMeterArray };
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unsigned msgByteCntArray[] = { sizeof(hdr), sizeof(cp->status), iMeterByteCnt, oMeterByteCnt };
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unsigned segCnt = sizeof(msgByteCntArray)/sizeof(unsigned);
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_cmAsDspToHostMsgCallback(&cp->ctx,msgDataPtrArray,msgByteCntArray, segCnt );
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return rc;
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}
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// The DSP execution callback happens through this function.
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// This function is only called from inside _cmAsThreadCallback() with the engine mutex locked.
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void _cmAsDspExecCallback( _cmAsCfg_t* cp )
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{
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/*
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unsigned i;
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// get pointers to a set of audio out buffers - pointers to disabled channels will be set to NULL
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cmApBufGet( cp->ss.args.outDevIdx, kOutApFl, cp->ctx.oChArray, cp->ctx.oChCnt );
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cmApBufGet( cp->ss.args.inDevIdx, kInApFl, cp->ctx.iChArray, cp->ctx.iChCnt );
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// zero the output buffers on all enabled channels
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for(i=0; i<cp->ctx.oChCnt; ++i)
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if( cp->ctx.oChArray[i] != NULL )
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memset( cp->ctx.oChArray[i], 0, cp->ss.args.dspFramesPerCycle * sizeof(cmSample_t));
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*/
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// Fill iChArray[] and oChArray[] with pointers to the incoming and outgoing sample buffers.
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// Notes:
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// 1) Buffers associated with disabled input/output channels will be set to NULL in iChArray[]/oChArray[].
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// 2) Buffers associated with channels marked for pass-through will be set to NULL in oChArray[].
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// 3) All samples returned in oChArray[] buffers will be set to zero.
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cmApBufGetIO(cp->ss.args.inDevIdx, cp->ctx.iChArray, cp->ctx.iChCnt, &cp->ctx.iTimeStamp,
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cp->ss.args.outDevIdx, cp->ctx.oChArray, cp->ctx.oChCnt, &cp->ctx.oTimeStamp );
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// call the application provided DSP process
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cp->ctx.audioRateFl = true;
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cp->ss.cbFunc( &cp->ctx, 0, NULL );
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cp->ctx.audioRateFl = false;
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// advance the audio buffer
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cmApBufAdvance( cp->ss.args.outDevIdx, kOutApFl );
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cmApBufAdvance( cp->ss.args.inDevIdx, kInApFl );
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// handle periodic status messages to the host
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if( (cp->statusUpdateSmpIdx += cp->ss.args.dspFramesPerCycle) >= cp->statusUpdateSmpCnt )
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{
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cp->statusUpdateSmpIdx -= cp->statusUpdateSmpCnt;
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if( cp->statusFl )
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_cmAsSendStateStatusToHost(cp);
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}
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}
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// Returns true if audio buffer is has waiting incoming samples and
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// available outgoing space.
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bool _cmAsBufIsReady( const _cmAsCfg_t* cp )
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{
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// if there neither the input or output device is valid
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if( cp->ss.args.inDevIdx==cmInvalidIdx && cp->ss.args.outDevIdx == cmInvalidIdx )
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return false;
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bool ibFl = cmApBufIsDeviceReady(cp->ss.args.inDevIdx, kInApFl);
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bool obFl = cmApBufIsDeviceReady(cp->ss.args.outDevIdx, kOutApFl);
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bool iFl = (cp->ss.args.inDevIdx == cmInvalidIdx) || ibFl;
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bool oFl = (cp->ss.args.outDevIdx == cmInvalidIdx) || obFl;
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//printf("br: %i %i %i %i\n",ibFl,obFl,iFl,oFl);
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return iFl && oFl;
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}
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// This is only called with _cmAsRecd.engMutexH locked
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cmAsRC_t _cmAsDeliverMsgsWithLock( _cmAsCfg_t* cp )
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{
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int i;
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cmAsRC_t rc = kOkThRC;
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// as long as their may be a msg wating in the incoming msg queue
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for(i=0; rc == kOkThRC; ++i)
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{
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// if a msg is waiting transmit it via cfg->cbFunc()
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if((rc = cmTsMp1cDequeueMsg(cp->htdQueueH,NULL,0)) == kOkThRC)
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++cp->status.msgCbCnt;
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}
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return rc;
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}
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// This is the main audio system loop (and thread callback function).
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// It blocks by waiting on a cond. var (which simultaneously unlocks a mutex).
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// With the mutex unlocked messages can pass directly to the DSP process
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// via calls to cmAsDeliverMsg().
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// When the audio buffers need to be serviced the audio device callback
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// signals the cond. var. which results in this thread waking up (and
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// simultaneously locking the mutex) as soon as the mutex is available.
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bool _cmAsThreadCallback(void* arg)
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{
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cmAsRC_t rc;
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_cmAsCfg_t* cp = (_cmAsCfg_t*)arg;
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// lock the cmAudioSys mutex
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if((rc = cmThreadMutexLock(cp->engMutexH)) != kOkAsRC )
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{
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_cmAsError(cp->p,rc,"The cmAudioSys thread mutex lock failed.");
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return false;
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}
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// runFl is always set except during finalization
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while( cp->runFl )
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{
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// if the buffer is NOT ready or the cmAudioSys is disabled
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if(_cmAsBufIsReady(cp) == false || cp->enableFl==false )
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{
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// block on the cond var and unlock the mutex
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if( cmThreadMutexWaitOnCondVar(cp->engMutexH,false) != kOkAsRC )
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{
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cmThreadMutexUnlock(cp->engMutexH);
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_cmAsError(cp->p,rc,"The cmAudioSys cond. var. wait failed.");
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return false;
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}
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//
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// the cond var was signaled and the mutex is now locked
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//
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++cp->status.wakeupCnt;
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}
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// be sure we are still enabled and the buffer is still ready
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if( cp->enableFl && cp->runFl )
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{
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while( _cmAsBufIsReady(cp) )
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{
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++cp->status.audioCbCnt;
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// calling this function results in callbacks to cmAudDsp.c:_cmAdUdpNetCallback()
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// which in turn calls cmAudioSysDeliverMsg() which queues any incoming messages
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// which are then transferred to the DSP processes by the the call to
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// _cmAsDeliverMsgWithLock() below.
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cmUdpNetReceive(cp->netH,NULL);
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// if there are msgs waiting to be sent to the DSP process send them.
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if( cmTsMp1cMsgWaiting(cp->htdQueueH) )
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_cmAsDeliverMsgsWithLock(cp);
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// make the cmAudioSys callback
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_cmAsDspExecCallback( cp );
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// update the signal time
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cp->ctx.begSmpIdx += cp->ss.args.dspFramesPerCycle;
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}
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}
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}
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// unlock the mutex
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cmThreadMutexUnlock(cp->engMutexH);
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return true;
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}
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// This is the audio port callback function.
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//
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// _cmAudioSysAudioUpdate() assumes that at most two audio device threads (input and output) may call it.
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// cmApBufUpdate() is safe under these conditions since the input and output buffers are updated separately.
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// p->audCbLock is used to allow either the input or output thread to signal
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// the condition variable. This flag is necessary to prevent both threads from simultaneously
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// attempting to signal the condition variable (which will lock the system).
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//
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// If more than two audio device threads call the function then this function is not safe.
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unsigned phase = 0;
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void _cmAudioSysAudioUpdate( cmApAudioPacket_t* inPktArray, unsigned inPktCnt, cmApAudioPacket_t* outPktArray, unsigned outPktCnt )
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{
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_cmAsCfg_t* cp = (_cmAsCfg_t*)(inPktArray!=NULL ? inPktArray[0].userCbPtr : outPktArray[0].userCbPtr);
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++cp->status.updateCnt;
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if( cp->runFl )
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{
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// transfer incoming/outgoing samples from/to the audio device
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cmApBufUpdate(inPktArray,inPktCnt,outPktArray,outPktCnt);
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/*
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//fill output with noise
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unsigned i = 0,j =0, k = 0, phs = 0;
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for(; i<outPktCnt; ++i)
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{
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cmApAudioPacket_t* a = outPktArray + i;
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cmApSample_t* dp = (cmApSample_t*)a->audioBytesPtr;
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phs = a->audioFramesCnt;
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for(j=0; j<a->audioFramesCnt; ++j)
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{
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cmApSample_t v = (cmApSample_t)(0.7 * sin(2*M_PI/44100.0 * phase + j ));
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for(k=0; k<a->chCnt; ++k,++dp)
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*dp = v;
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}
|
|
//for(j=0; j<a->audioFramesCnt*a->chCnt; ++j,++dp)
|
|
// *dp = (cmApSample_t)(rand() - (RAND_MAX/2))/(RAND_MAX/2);
|
|
|
|
}
|
|
|
|
phase += phs;
|
|
|
|
return;
|
|
*/
|
|
|
|
//++p->audCbLock;
|
|
|
|
bool testBufFl = (cp->syncInputFl==true && inPktCnt>0) || (cp->syncInputFl==false && outPktCnt>0);
|
|
|
|
//printf("%i %i %i %i\n",testBufFl,cp->syncInputFl,inPktCnt,outPktCnt);
|
|
|
|
// if the input/output buffer contain samples to be processed then signal the condition variable
|
|
// - this will cause the audio system thread to unblock and the used defined DSP process will be called.
|
|
if( testBufFl && _cmAsBufIsReady(cp) )
|
|
{
|
|
if( cmThreadMutexSignalCondVar(cp->engMutexH) != kOkThRC )
|
|
_cmAsError(cp->p,kMutexErrAsRC,"CmAudioSys signal cond. var. failed.");
|
|
|
|
}
|
|
//--p->audCbLock;
|
|
}
|
|
|
|
}
|
|
|
|
// Called when MIDI messages arrive from external MIDI ports.
|
|
void _cmAudioSysMidiCallback( const cmMidiPacket_t* pktArray, unsigned pktCnt )
|
|
{
|
|
unsigned i;
|
|
for(i=0; i<pktCnt; ++i)
|
|
{
|
|
const cmMidiPacket_t* pkt = pktArray + i;
|
|
_cmAsCfg_t* cp = (_cmAsCfg_t*)(pkt->cbDataPtr);
|
|
|
|
if( !cp->runFl )
|
|
continue;
|
|
|
|
cmAudioSysH_t asH;
|
|
asH.h = cp->p;
|
|
|
|
unsigned selId = kMidiMsgArraySelAsId;
|
|
const void* msgPtrArray[] = { &cp->ctx.asSubIdx, &selId, &pkt->devIdx, &pkt->portIdx, &pkt->msgCnt, pkt->msgArray };
|
|
unsigned msgByteCntArray[] = { sizeof(cp->ctx.asSubIdx), sizeof(selId), sizeof(pkt->devIdx), sizeof(pkt->portIdx), sizeof(pkt->msgCnt), pkt->msgCnt*sizeof(cmMidiMsg) };
|
|
unsigned msgSegCnt = sizeof(msgByteCntArray)/sizeof(unsigned);
|
|
|
|
cmAudioSysDeliverSegMsg(asH,msgPtrArray,msgByteCntArray,msgSegCnt,cmInvalidId);
|
|
}
|
|
|
|
}
|
|
|
|
cmAsRC_t cmAudioSysAllocate( cmAudioSysH_t* hp, cmRpt_t* rpt, const cmAudioSysCfg_t* cfg )
|
|
{
|
|
cmAsRC_t rc;
|
|
|
|
if((rc = cmAudioSysFree(hp)) != kOkAsRC )
|
|
return rc;
|
|
|
|
cmAs_t* p = cmMemAllocZ( cmAs_t, 1 );
|
|
|
|
cmErrSetup(&p->err,rpt,"Audio System");
|
|
|
|
hp->h = p;
|
|
|
|
if( cfg != NULL )
|
|
if((rc = cmAudioSysInitialize( *hp, cfg )) != kOkAsRC )
|
|
cmAudioSysFree(hp);
|
|
|
|
return rc;
|
|
}
|
|
|
|
cmAsRC_t cmAudioSysFree( cmAudioSysH_t* hp )
|
|
{
|
|
cmAsRC_t rc;
|
|
|
|
if( hp == NULL || hp->h == NULL )
|
|
return kOkAsRC;
|
|
|
|
if((rc = cmAudioSysFinalize(*hp)) != kOkAsRC )
|
|
return rc;
|
|
|
|
cmAs_t* p = _cmAsHandleToPtr(*hp);
|
|
|
|
cmMemFree(p);
|
|
|
|
hp->h = NULL;
|
|
|
|
return rc;
|
|
}
|
|
|
|
cmAsRC_t _cmAudioSysEnable( cmAs_t* p, bool enableFl )
|
|
{
|
|
cmAsRC_t rc;
|
|
|
|
unsigned i;
|
|
|
|
for(i=0; i<p->ssCnt; ++i)
|
|
{
|
|
_cmAsCfg_t* cp = p->ssArray + i;
|
|
|
|
cmApBufOnPortEnable(cp->ss.args.inDevIdx,enableFl);
|
|
cmApBufOnPortEnable(cp->ss.args.outDevIdx,enableFl);
|
|
|
|
if( enableFl )
|
|
{
|
|
|
|
//cmApBufPrimeOutput( cp->ss.args.outDevIdx, 2 );
|
|
|
|
// start the input device
|
|
if((rc = cmApDeviceStart( cp->ss.args.inDevIdx )) != kOkAsRC )
|
|
return _cmAsError(p,kAudioDevStartFailAsRC,"The audio input device start failed.");
|
|
|
|
// start the output device
|
|
if( cmApDeviceStart( cp->ss.args.outDevIdx ) != kOkAsRC )
|
|
return _cmAsError(p,kAudioDevStartFailAsRC,"The audio ouput device start failed.");
|
|
}
|
|
else
|
|
{
|
|
// stop the input device
|
|
if((rc = cmApDeviceStop( cp->ss.args.inDevIdx )) != kOkAsRC )
|
|
return _cmAsError(p,kAudioDevStopFailAsRC,"The audio input device stop failed.");
|
|
|
|
// stop the output device
|
|
if((rc = cmApDeviceStop( cp->ss.args.outDevIdx )) != kOkAsRC )
|
|
return _cmAsError(p,kAudioDevStopFailAsRC,"The audio output device stop failed.");
|
|
|
|
}
|
|
|
|
cp->enableFl = enableFl;
|
|
}
|
|
return kOkAsRC;
|
|
}
|
|
|
|
cmAsRC_t _cmAudioSysFinalize( cmAs_t* p )
|
|
{
|
|
cmAsRC_t rc = kOkAsRC;
|
|
unsigned i;
|
|
|
|
// mark the audio system as NOT initialized
|
|
p->initFl = false;
|
|
|
|
// be sure all audio callbacks are disabled before continuing.
|
|
if((rc = _cmAudioSysEnable(p,false)) != kOkAsRC )
|
|
return _cmAsError(p,rc,"Audio system finalize failed because device halting failed.");
|
|
|
|
for(i=0; i<p->ssCnt; ++i)
|
|
{
|
|
_cmAsCfg_t* cp = p->ssArray + i;
|
|
|
|
if( cmThreadIsValid( cp->threadH ))
|
|
{
|
|
// inform the thread that it should exit
|
|
cp->enableFl = false;
|
|
cp->runFl = false;
|
|
cp->statusFl = false;
|
|
|
|
// WARNING: be sure that the audio thread cannot simultaneously signal the
|
|
// cond variable from _cmAsAudioUpdate() otherwise the system may crash
|
|
|
|
while( cp->audCbLock != 0 )
|
|
{ cmSleepUs(100000); }
|
|
|
|
// signal the cond var to cause the thread to run
|
|
if((rc = cmThreadMutexSignalCondVar(cp->engMutexH)) != kOkThRC )
|
|
_cmAsError(p,kMutexErrAsRC,"Finalize signal cond. var. failed.");
|
|
|
|
// wait to take control of the mutex - this will occur when the thread function exits
|
|
if((rc = cmThreadMutexLock(cp->engMutexH)) != kOkThRC )
|
|
_cmAsError(p,kMutexErrAsRC,"Finalize lock failed.");
|
|
|
|
// unlock the mutex because it is no longer needed and must be unlocked to be destroyed
|
|
if((rc = cmThreadMutexUnlock(cp->engMutexH)) != kOkThRC )
|
|
_cmAsError(p,kMutexErrAsRC,"Finalize unlock failed.");
|
|
|
|
// destroy the thread
|
|
if((rc = cmThreadDestroy( &cp->threadH )) != kOkThRC )
|
|
_cmAsError(p,kThreadErrAsRC,"Thread destroy failed.");
|
|
|
|
}
|
|
|
|
// destroy the mutex
|
|
if( cmThreadMutexIsValid(cp->engMutexH) )
|
|
if((rc = cmThreadMutexDestroy( &cp->engMutexH )) != kOkThRC )
|
|
_cmAsError(p,kMutexErrAsRC,"Mutex destroy failed.");
|
|
|
|
|
|
// remove the MIDI callback
|
|
if( cmMpIsInitialized() && cmMpUsesCallback(-1,-1, _cmAudioSysMidiCallback, cp) )
|
|
if( cmMpRemoveCallback( -1, -1, _cmAudioSysMidiCallback, cp ) != kOkMpRC )
|
|
_cmAsError(p,kMidiSysFailAsRC,"MIDI callback removal failed.");
|
|
|
|
// destroy the host-to-dsp msg queue
|
|
if( cmTsMp1cIsValid(cp->htdQueueH ) )
|
|
if((rc = cmTsMp1cDestroy( &cp->htdQueueH )) != kOkThRC )
|
|
_cmAsError(p,kTsQueueErrAsRC,"Host-to-DSP msg queue destroy failed.");
|
|
|
|
// destroy the dsp-to-host msg queue
|
|
if( cmTsMp1cIsValid(p->dthQueH) )
|
|
if((rc = cmTsMp1cDestroy( &p->dthQueH )) != kOkThRC )
|
|
_cmAsError(p,kTsQueueErrAsRC,"DSP-to-Host msg queue destroy failed.");
|
|
|
|
|
|
cmMemPtrFree(&cp->ctx.iChArray);
|
|
cmMemPtrFree(&cp->ctx.oChArray);
|
|
cp->ctx.iChCnt = 0;
|
|
cp->ctx.oChCnt = 0;
|
|
|
|
cmMemPtrFree(&cp->iMeterArray);
|
|
cmMemPtrFree(&cp->oMeterArray);
|
|
cp->status.iMeterCnt = 0;
|
|
cp->status.oMeterCnt = 0;
|
|
|
|
}
|
|
|
|
|
|
cmMemPtrFree(&p->ssArray);
|
|
p->ssCnt = 0;
|
|
|
|
return rc;
|
|
}
|
|
|
|
// A given device may be used as an input device exactly once and an output device exactly once.
|
|
// When the input to a given device is used by one sub-system and the output is used by another
|
|
// then both sub-systems must use the same srate,devFramesPerCycle, audioBufCnt and dspFramesPerCycle.
|
|
cmAsRC_t _cmAsSysValidate( cmErr_t* err, const cmAudioSysCfg_t* cfg )
|
|
{
|
|
unsigned i,j,k;
|
|
for(i=0; i<2; ++i)
|
|
{
|
|
// examine input devices - then output devices
|
|
bool inputFl = i==0;
|
|
bool outputFl = !inputFl;
|
|
|
|
for(j=0; j<cfg->ssCnt; ++j)
|
|
{
|
|
cmAudioSysArgs_t* s0 = &cfg->ssArray[j].args;
|
|
unsigned devIdx = inputFl ? s0->inDevIdx : s0->outDevIdx;
|
|
|
|
for(k=0; k<cfg->ssCnt && devIdx != cmInvalidIdx; ++k)
|
|
if( k != j )
|
|
{
|
|
cmAudioSysArgs_t* s1 = &cfg->ssArray[k].args;
|
|
|
|
// if the device was used as input or output multple times then signal an error
|
|
if( (inputFl && (s1->inDevIdx == devIdx) && s1->inDevIdx != cmInvalidIdx) || (outputFl && (s1->outDevIdx == devIdx) && s1->outDevIdx != cmInvalidIdx) )
|
|
return cmErrMsg(err,kInvalidArgAsRC,"The device %i was used as an %s by multiple sub-systems.", devIdx, inputFl ? "input" : "output");
|
|
|
|
// if this device is being used by another subsystem ...
|
|
if( (inputFl && (s1->outDevIdx == devIdx) && s1->inDevIdx != cmInvalidIdx) || (outputFl && (s1->outDevIdx == devIdx) && s1->outDevIdx != cmInvalidIdx ) )
|
|
{
|
|
// ... then some of its buffer spec's must match
|
|
if( s0->srate != s1->srate || s0->audioBufCnt != s1->audioBufCnt || s0->dspFramesPerCycle != s1->dspFramesPerCycle || s0->devFramesPerCycle != s1->devFramesPerCycle )
|
|
return cmErrMsg(err,kInvalidArgAsRC,"The device %i is used by different sub-system with different audio buffer parameters.",devIdx);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return kOkAsRC;
|
|
}
|
|
|
|
cmAsRC_t cmAudioSysInitialize( cmAudioSysH_t h, const cmAudioSysCfg_t* cfg )
|
|
{
|
|
cmAsRC_t rc;
|
|
unsigned i;
|
|
cmAs_t* p = _cmAsHandleToPtr(h);
|
|
|
|
// validate the device setup
|
|
if((rc =_cmAsSysValidate(&p->err, cfg )) != kOkAsRC )
|
|
return rc;
|
|
|
|
// always finalize before iniitalize
|
|
if((rc = cmAudioSysFinalize(h)) != kOkAsRC )
|
|
return rc;
|
|
|
|
// create the audio file devices
|
|
/*
|
|
for(i=0; i<cfg->afpCnt; ++i)
|
|
{
|
|
const cmAudioSysFilePort_t* afp = cfg->afpArray + i;
|
|
cmApFileDeviceCreate( afp->devLabel, afp->inAudioFn, afp->outAudioFn, afp->oBits, afp->oChCnt );
|
|
}
|
|
*/
|
|
|
|
p->ssArray = cmMemAllocZ( _cmAsCfg_t, cfg->ssCnt );
|
|
p->ssCnt = cfg->ssCnt;
|
|
|
|
for(i=0; i<p->ssCnt; ++i)
|
|
{
|
|
_cmAsCfg_t* cp = p->ssArray + i;
|
|
const cmAudioSysSubSys_t* ss = cfg->ssArray + i;
|
|
|
|
cp->p = p;
|
|
cp->ss = *ss; // copy the cfg into the internal audio system state
|
|
cp->runFl = false;
|
|
cp->enableFl = false;
|
|
cp->statusFl = false;
|
|
cp->ctx.reserved = p;
|
|
cp->ctx.asSubIdx = i;
|
|
cp->ctx.ss = &cp->ss;
|
|
cp->ctx.begSmpIdx = 0;
|
|
cp->ctx.dspToHostFunc = _cmAsDspToHostMsgCallback;
|
|
|
|
// validate the input device index
|
|
if( ss->args.inDevIdx != cmInvalidIdx && ss->args.inDevIdx >= cmApDeviceCount() )
|
|
{
|
|
rc = _cmAsError(p,kAudioDevSetupErrAsRC,"The audio input device index %i is invalid.",ss->args.inDevIdx);
|
|
goto errLabel;
|
|
}
|
|
|
|
// validate the output device index
|
|
if( ss->args.outDevIdx != cmInvalidIdx && ss->args.outDevIdx >= cmApDeviceCount() )
|
|
{
|
|
rc = _cmAsError(p,kAudioDevSetupErrAsRC,"The audio output device index %i is invalid.",ss->args.outDevIdx);
|
|
goto errLabel;
|
|
}
|
|
|
|
// setup the input device
|
|
if( ss->args.inDevIdx != cmInvalidIdx )
|
|
if((rc = cmApDeviceSetup( ss->args.inDevIdx, ss->args.srate, ss->args.devFramesPerCycle, _cmAudioSysAudioUpdate, cp )) != kOkAsRC )
|
|
{
|
|
rc = _cmAsError(p,kAudioDevSetupErrAsRC,"Audio input device setup failed.");
|
|
goto errLabel;
|
|
}
|
|
|
|
// setup the output device
|
|
if( ss->args.outDevIdx != ss->args.inDevIdx && ss->args.outDevIdx != cmInvalidIdx )
|
|
if((rc = cmApDeviceSetup( ss->args.outDevIdx, ss->args.srate, ss->args.devFramesPerCycle, _cmAudioSysAudioUpdate, cp )) != kOkAsRC )
|
|
{
|
|
rc = _cmAsError(p,kAudioDevSetupErrAsRC,"Audio output device setup failed.");
|
|
goto errLabel;
|
|
}
|
|
|
|
// setup the input device buffer
|
|
if( ss->args.inDevIdx != cmInvalidIdx )
|
|
if((rc = cmApBufSetup( ss->args.inDevIdx, ss->args.srate, ss->args.dspFramesPerCycle, ss->args.audioBufCnt, cmApDeviceChannelCount(ss->args.inDevIdx, true), ss->args.devFramesPerCycle, cmApDeviceChannelCount(ss->args.inDevIdx, false), ss->args.devFramesPerCycle )) != kOkAsRC )
|
|
{
|
|
rc = _cmAsError(p,kAudioBufSetupErrAsRC,"Audio buffer input setup failed.");
|
|
goto errLabel;
|
|
}
|
|
|
|
cmApBufEnableMeter(ss->args.inDevIdx, -1, kInApFl | kEnableApFl );
|
|
cmApBufEnableMeter(ss->args.outDevIdx,-1, kOutApFl | kEnableApFl );
|
|
|
|
// setup the input audio buffer ptr array - used to send input audio to the DSP system in _cmAsDspExecCallback()
|
|
if((cp->ctx.iChCnt = cmApDeviceChannelCount(ss->args.inDevIdx, true)) != 0 )
|
|
cp->ctx.iChArray = cmMemAllocZ( cmSample_t*, cp->ctx.iChCnt );
|
|
|
|
// setup the output device buffer
|
|
if( ss->args.outDevIdx != ss->args.inDevIdx )
|
|
if((rc = cmApBufSetup( ss->args.outDevIdx, ss->args.srate, ss->args.dspFramesPerCycle, ss->args.audioBufCnt, cmApDeviceChannelCount(ss->args.outDevIdx, true), ss->args.devFramesPerCycle, cmApDeviceChannelCount(ss->args.outDevIdx, false), ss->args.devFramesPerCycle )) != kOkAsRC )
|
|
return _cmAsError(p,kAudioBufSetupErrAsRC,"Audio buffer ouput device setup failed.");
|
|
|
|
// setup the output audio buffer ptr array - used to recv output audio from the DSP system in _cmAsDspExecCallback()
|
|
if((cp->ctx.oChCnt = cmApDeviceChannelCount(ss->args.outDevIdx, false)) != 0 )
|
|
cp->ctx.oChArray = cmMemAllocZ( cmSample_t*, cp->ctx.oChCnt );
|
|
|
|
// determine the sync source
|
|
cp->syncInputFl = ss->args.syncInputFl;
|
|
|
|
// if sync'ing to an unavailable device then sync to the available device
|
|
if( ss->args.syncInputFl && cp->ctx.iChCnt == 0 )
|
|
cp->syncInputFl = false;
|
|
|
|
if( ss->args.syncInputFl==false && cp->ctx.oChCnt == 0 )
|
|
cp->syncInputFl = true;
|
|
|
|
// setup the status record
|
|
cp->status.asSubIdx = cp->ctx.asSubIdx;
|
|
cp->status.iDevIdx = ss->args.inDevIdx;
|
|
cp->status.oDevIdx = ss->args.outDevIdx;
|
|
cp->status.iMeterCnt = cp->ctx.iChCnt;
|
|
cp->status.oMeterCnt = cp->ctx.oChCnt;
|
|
cp->iMeterArray = cmMemAllocZ( double, cp->status.iMeterCnt );
|
|
cp->oMeterArray = cmMemAllocZ( double, cp->status.oMeterCnt );
|
|
cp->netH = cfg->netH;
|
|
|
|
// create the audio System thread
|
|
if((rc = cmThreadCreate( &cp->threadH, _cmAsThreadCallback, cp, ss->args.rpt )) != kOkThRC )
|
|
{
|
|
rc = _cmAsError(p,kThreadErrAsRC,"Thread create failed.");
|
|
goto errLabel;
|
|
}
|
|
|
|
// create the audio System mutex
|
|
if((rc = cmThreadMutexCreate( &cp->engMutexH, ss->args.rpt )) != kOkThRC )
|
|
{
|
|
rc = _cmAsError(p,kMutexErrAsRC,"Thread mutex create failed.");
|
|
goto errLabel;
|
|
}
|
|
|
|
// create the host-to-dsp thread safe msg queue
|
|
if((rc = cmTsMp1cCreate( &cp->htdQueueH, ss->args.msgQueueByteCnt, ss->cbFunc, &cp->ctx, ss->args.rpt )) != kOkThRC )
|
|
{
|
|
rc = _cmAsError(p,kTsQueueErrAsRC,"Host-to-DSP msg queue create failed.");
|
|
goto errLabel;
|
|
}
|
|
|
|
// create the dsp-to-host thread safe msg queue
|
|
if( cmTsMp1cIsValid( p->dthQueH ) == false )
|
|
{
|
|
if((rc = cmTsMp1cCreate( &p->dthQueH, ss->args.msgQueueByteCnt, cfg->clientCbFunc, cfg->clientCbData, ss->args.rpt )) != kOkThRC )
|
|
{
|
|
rc = _cmAsError(p,kTsQueueErrAsRC,"DSP-to-Host msg queue create failed.");
|
|
goto errLabel;
|
|
}
|
|
}
|
|
|
|
//cp->dthQueueH = p->dthQueH;
|
|
|
|
// install an external MIDI port callback handler for incoming MIDI messages
|
|
if( cmMpIsInitialized() )
|
|
if( cmMpInstallCallback( -1, -1, _cmAudioSysMidiCallback, cp ) != kOkMpRC )
|
|
{
|
|
rc = _cmAsError(p,kMidiSysFailAsRC,"MIDI system callback installation failed.");
|
|
goto errLabel;
|
|
}
|
|
|
|
// setup the sub-system status notification
|
|
cp->statusUpdateSmpCnt = floor(cmApBufMeterMs() * cp->ss.args.srate / 1000.0 );
|
|
cp->statusUpdateSmpIdx = 0;
|
|
|
|
cp->runFl = true;
|
|
|
|
// start the audio System thread
|
|
if( cmThreadPause( cp->threadH, 0 ) != kOkThRC )
|
|
{
|
|
rc = _cmAsError(p,kThreadErrAsRC,"Thread start failed.");
|
|
goto errLabel;
|
|
}
|
|
}
|
|
|
|
|
|
_cmAsHostInitNotify(p);
|
|
p->initFl = true;
|
|
|
|
errLabel:
|
|
if( rc != kOkAsRC )
|
|
_cmAudioSysFinalize(p);
|
|
|
|
return rc;
|
|
}
|
|
|
|
|
|
cmAsRC_t cmAudioSysFinalize(cmAudioSysH_t h )
|
|
{
|
|
cmAsRC_t rc = kOkAsRC;
|
|
|
|
if( cmAudioSysHandleIsValid(h) == false )
|
|
return rc;
|
|
|
|
cmAs_t* p = _cmAsHandleToPtr(h);
|
|
|
|
rc = _cmAudioSysFinalize(p);
|
|
|
|
h.h = NULL;
|
|
|
|
return rc;
|
|
}
|
|
|
|
|
|
bool cmAudioSysIsInitialized( cmAudioSysH_t h )
|
|
{
|
|
cmAs_t* p = _cmAsHandleToPtr(h);
|
|
return p->initFl;
|
|
}
|
|
|
|
cmAsRC_t _cmAudioSysVerifyInit( cmAs_t* p )
|
|
{
|
|
if( p->initFl == false )
|
|
{
|
|
// if the last msg generated was also a not init msg then don't
|
|
// generate another message - just return the error
|
|
if( cmErrLastRC(&p->err) != kNotInitAsRC )
|
|
cmErrMsg(&p->err,kNotInitAsRC,"The audio system is not initialized.");
|
|
return kNotInitAsRC;
|
|
}
|
|
|
|
return kOkAsRC;
|
|
}
|
|
|
|
|
|
bool cmAudioSysIsEnabled( cmAudioSysH_t h )
|
|
{
|
|
if( cmAudioSysIsInitialized(h) == false )
|
|
return false;
|
|
|
|
cmAs_t* p = _cmAsHandleToPtr(h);
|
|
unsigned i;
|
|
for(i=0; i<p->ssCnt; ++i)
|
|
if( p->ssArray[i].enableFl )
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
cmAsRC_t cmAudioSysEnable( cmAudioSysH_t h, bool enableFl )
|
|
{
|
|
cmAs_t* p = _cmAsHandleToPtr(h);
|
|
return _cmAudioSysEnable(p,enableFl);
|
|
}
|
|
|
|
cmAsRC_t cmAudioSysDeliverSegMsg( cmAudioSysH_t h, const void* msgDataPtrArray[], unsigned msgByteCntArray[], unsigned msgSegCnt, unsigned srcNetNodeId )
|
|
{
|
|
cmAs_t* p = _cmAsHandleToPtr(h);
|
|
cmAsRC_t rc;
|
|
|
|
// the system must be initialized to use this function
|
|
if((rc = _cmAudioSysVerifyInit(p)) != kOkAsRC )
|
|
return rc;
|
|
|
|
if( msgSegCnt == 0 )
|
|
return kOkAsRC;
|
|
|
|
// BUG BUG BUG - there is no reason that both the asSubIdx and the selId must
|
|
// be in the first segment but it would be nice.
|
|
assert( msgByteCntArray[0] >= 2*sizeof(unsigned) || (msgSegCnt>1 && msgByteCntArray[0]==sizeof(unsigned) && msgByteCntArray[1]>=sizeof(unsigned)) );
|
|
|
|
// The audio sub-system index is always the first field of the msg
|
|
// and the msg selector id is always the second field
|
|
|
|
unsigned* array = (unsigned*)msgDataPtrArray[0];
|
|
unsigned asSubIdx = array[0];
|
|
unsigned selId = array[1];
|
|
|
|
if( selId == kUiMstrSelAsId )
|
|
return _cmAsHandleNonSubSysMsg( p, msgDataPtrArray, msgByteCntArray, msgSegCnt );
|
|
|
|
if( selId == kNetSyncSelAsId )
|
|
{
|
|
assert( msgSegCnt==1);
|
|
assert( asSubIdx < p->ssCnt );
|
|
p->ssArray[asSubIdx].ctx.srcNetNodeId = srcNetNodeId;
|
|
p->ssArray[asSubIdx].ss.cbFunc(&p->ssArray[asSubIdx].ctx,msgByteCntArray[0],msgDataPtrArray[0]);
|
|
return kOkAsRC;
|
|
}
|
|
|
|
return _cmAsEnqueueMsg(p,p->ssArray[asSubIdx].htdQueueH,msgDataPtrArray,msgByteCntArray,msgSegCnt,"Host-to-DSP");
|
|
}
|
|
|
|
cmAsRC_t cmAudioSysDeliverMsg( cmAudioSysH_t h, const void* msgPtr, unsigned msgByteCnt, unsigned srcNetNodeId )
|
|
{
|
|
const void* msgDataPtrArray[] = { msgPtr };
|
|
unsigned msgByteCntArray[] = { msgByteCnt };
|
|
return cmAudioSysDeliverSegMsg(h,msgDataPtrArray,msgByteCntArray,1,srcNetNodeId);
|
|
}
|
|
|
|
cmAsRC_t cmAudioSysDeliverIdMsg( cmAudioSysH_t h, unsigned asSubIdx, unsigned id, const void* msgPtr, unsigned msgByteCnt, unsigned srcNetNodeId )
|
|
{
|
|
cmAsRC_t rc;
|
|
cmAs_t* p = _cmAsHandleToPtr(h);
|
|
|
|
// the system must be initialized to use this function
|
|
if((rc = _cmAudioSysVerifyInit(p)) != kOkAsRC )
|
|
return rc;
|
|
|
|
const void* msgDataPtrArray[] = { &asSubIdx, &id, msgPtr };
|
|
unsigned msgByteCntArray[] = { sizeof(asSubIdx), sizeof(id), msgByteCnt };
|
|
return cmAudioSysDeliverSegMsg(h,msgDataPtrArray,msgByteCntArray,3,srcNetNodeId);
|
|
}
|
|
|
|
unsigned cmAudioSysIsMsgWaiting( cmAudioSysH_t h )
|
|
{
|
|
cmAsRC_t rc;
|
|
cmAs_t* p = _cmAsHandleToPtr(h);
|
|
|
|
// the system must be initialized to use this function
|
|
if((rc = _cmAudioSysVerifyInit(p)) != kOkAsRC )
|
|
return 0;
|
|
|
|
unsigned n = 0;
|
|
unsigned retByteCnt;
|
|
|
|
for(n=0; n < p->ssCnt; ++n )
|
|
{
|
|
//if( (retByteCnt = cmTsMp1cDequeueMsgByteCount(p->ssArray[p->waitAsSubIdx].dthQueueH)) > 0 )
|
|
if( (retByteCnt = cmTsMp1cDequeueMsgByteCount(p->dthQueH)) > 0 )
|
|
return retByteCnt;
|
|
|
|
p->waitAsSubIdx = (p->waitAsSubIdx + 1) % p->ssCnt;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
cmAsRC_t cmAudioSysReceiveMsg( cmAudioSysH_t h, void* msgDataPtr, unsigned msgByteCnt )
|
|
{
|
|
cmAsRC_t rc;
|
|
cmAs_t* p = _cmAsHandleToPtr(h);
|
|
|
|
// the system must be initialized to use this function
|
|
if((rc = _cmAudioSysVerifyInit(p)) != kOkAsRC )
|
|
return rc;
|
|
|
|
//switch( cmTsMp1cDequeueMsg(p->ssArray[p->waitAsSubIdx].dthQueueH,msgDataPtr,msgByteCnt) )
|
|
switch( cmTsMp1cDequeueMsg(p->dthQueH,msgDataPtr,msgByteCnt) )
|
|
{
|
|
case kOkThRC:
|
|
p->waitAsSubIdx = (p->waitAsSubIdx + 1) % p->ssCnt;
|
|
return kOkAsRC;
|
|
|
|
case kBufTooSmallThRC:
|
|
return kBufTooSmallAsRC;
|
|
|
|
case kBufEmptyThRC:
|
|
return kNoMsgWaitingAsRC;
|
|
}
|
|
|
|
return _cmAsError(p,kTsQueueErrAsRC,"A deque operation failed on the DSP-to-Host message queue.");
|
|
}
|
|
|
|
|
|
void cmAudioSysStatus( cmAudioSysH_t h, unsigned asSubIdx, cmAudioSysStatus_t* statusPtr )
|
|
{
|
|
cmAs_t* p = _cmAsHandleToPtr(h);
|
|
|
|
// the system must be initialized to use this function
|
|
if( _cmAudioSysVerifyInit(p) != kOkAsRC )
|
|
return;
|
|
|
|
if( asSubIdx < p->ssCnt )
|
|
*statusPtr = p->ssArray[asSubIdx].status;
|
|
}
|
|
|
|
void cmAudioSysStatusNotifyEnable( cmAudioSysH_t h, unsigned asSubIdx, bool enableFl )
|
|
{
|
|
cmAs_t* p = _cmAsHandleToPtr(h);
|
|
|
|
// the system must be initialized to use this function
|
|
if( _cmAudioSysVerifyInit(p) != kOkAsRC )
|
|
return;
|
|
|
|
unsigned i = asSubIdx == cmInvalidIdx ? 0 : asSubIdx;
|
|
unsigned n = asSubIdx == cmInvalidIdx ? p->ssCnt : asSubIdx+1;
|
|
for(; i<n; ++i)
|
|
p->ssArray[i].statusFl = enableFl;
|
|
}
|
|
|
|
bool cmAudioSysHandleIsValid( cmAudioSysH_t h )
|
|
{ return h.h != NULL; }
|
|
|
|
cmAudioSysCtx_t* cmAudioSysContext( cmAudioSysH_t h, unsigned asSubIdx )
|
|
{
|
|
cmAs_t* p = _cmAsHandleToPtr(h);
|
|
|
|
if( _cmAudioSysVerifyInit(p) != kOkAsRC )
|
|
return NULL;
|
|
|
|
return &p->ssArray[asSubIdx].ctx;
|
|
}
|
|
|
|
unsigned cmAudioSysSubSystemCount( cmAudioSysH_t h )
|
|
{
|
|
cmAs_t* p = _cmAsHandleToPtr(h);
|
|
if( _cmAudioSysVerifyInit(p) != kOkAsRC )
|
|
return 0;
|
|
|
|
return p->ssCnt;
|
|
}
|
|
|
|
//===========================================================================================================================
|
|
//
|
|
// cmAsTest()
|
|
//
|
|
|
|
/// [cmAudioSysTest]
|
|
|
|
typedef struct
|
|
{
|
|
double hz; // current synth frq
|
|
long phs; // current synth phase
|
|
double srate; // audio sample rate
|
|
unsigned cbCnt; // DSP cycle count
|
|
bool synthFl; // true=synth false=pass through
|
|
} _cmAsTestCbRecd;
|
|
|
|
typedef struct
|
|
{
|
|
unsigned asSubIdx; // asSubIdx must always be the first field in the msg
|
|
unsigned id; // 0 = set DSP Hz, 1 = report cbCount to host
|
|
double hz;
|
|
unsigned uint;
|
|
} _cmAsTestMsg;
|
|
|
|
|
|
long _cmAsSynthSine( _cmAsTestCbRecd* r, cmApSample_t* p, unsigned chCnt, unsigned frmCnt )
|
|
{
|
|
long ph = 0;
|
|
unsigned i;
|
|
|
|
|
|
for(i=0; i<chCnt; ++i)
|
|
{
|
|
unsigned j;
|
|
cmApSample_t* op = p + i;
|
|
|
|
ph = r->phs;
|
|
for(j=0; j<frmCnt; j++, op+=chCnt, ph++)
|
|
*op = (cmApSample_t)(0.9 * sin( 2.0 * M_PI * r->hz * ph / r->srate ));
|
|
}
|
|
|
|
return ph;
|
|
}
|
|
|
|
unsigned _cmAsTestChIdx = 0;
|
|
|
|
cmRC_t _cmAsTestCb( void* cbPtr, unsigned msgByteCnt, const void* msgDataPtr )
|
|
{
|
|
cmRC_t rc = cmOkRC;
|
|
cmAudioSysCtx_t* ctx = (cmAudioSysCtx_t*)cbPtr;
|
|
cmAudioSysSubSys_t* ss = ctx->ss;
|
|
_cmAsTestCbRecd* r = (_cmAsTestCbRecd*)ss->cbDataPtr;
|
|
|
|
// update the calback counter
|
|
++r->cbCnt;
|
|
|
|
// if this is an audio update request
|
|
if( msgByteCnt == 0 )
|
|
{
|
|
unsigned i;
|
|
if( r->synthFl )
|
|
{
|
|
long phs = 0;
|
|
if(0)
|
|
{
|
|
for(i=0; i<ctx->oChCnt; ++i)
|
|
if( ctx->oChArray[i] != NULL )
|
|
phs = _cmAsSynthSine(r, ctx->oChArray[i], 1, ss->args.dspFramesPerCycle );
|
|
}
|
|
else
|
|
{
|
|
if( _cmAsTestChIdx < ctx->oChCnt )
|
|
phs = _cmAsSynthSine(r, ctx->oChArray[_cmAsTestChIdx], 1, ss->args.dspFramesPerCycle );
|
|
}
|
|
|
|
r->phs = phs;
|
|
}
|
|
else
|
|
{
|
|
// BUG BUG BUG - this assumes that the input and output channels are the same.
|
|
unsigned chCnt = cmMin(ctx->oChCnt,ctx->iChCnt);
|
|
for(i=0; i<chCnt; ++i)
|
|
memcpy(ctx->oChArray[i],ctx->iChArray[i],sizeof(cmSample_t)*ss->args.dspFramesPerCycle);
|
|
}
|
|
|
|
}
|
|
else // ... otherwise it is a msg for the DSP process from the host
|
|
{
|
|
_cmAsTestMsg* msg = (_cmAsTestMsg*)msgDataPtr;
|
|
|
|
msg->asSubIdx = ctx->asSubIdx;
|
|
|
|
switch(msg->id)
|
|
{
|
|
case 0:
|
|
r->hz = msg->hz;
|
|
break;
|
|
|
|
case 1:
|
|
msg->uint = r->cbCnt;
|
|
msgByteCnt = sizeof(_cmAsTestMsg);
|
|
rc = ctx->dspToHostFunc(ctx,(const void **)&msg,&msgByteCnt,1);
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
// print the usage message for cmAudioPortTest.c
|
|
void _cmAsPrintUsage( cmRpt_t* rpt )
|
|
{
|
|
char msg[] =
|
|
"cmAudioSysTest() command switches:\n"
|
|
"-r <srate> -c <chcnt> -b <bufcnt> -f <frmcnt> -i <idevidx> -o <odevidx> -m <msgqsize> -d <dspsize> -t -p -h \n"
|
|
"\n"
|
|
"-r <srate> = sample rate (48000)\n"
|
|
"-c <chcnt> = audio channels (2)\n"
|
|
"-b <bufcnt> = count of buffers (3)\n"
|
|
"-f <frmcnt> = count of samples per buffer (512)\n"
|
|
"-i <idevidx> = input device index (0)\n"
|
|
"-o <odevidx> = output device index (2)\n"
|
|
"-m <msgqsize> = message queue byte count (1024)\n"
|
|
"-d <dspsize> = samples per DSP frame (64)\n"
|
|
"-s = true: sync to input port false: sync to output port\n"
|
|
"-t = copy input to output otherwise synthesize a 1000 Hz sine (false)\n"
|
|
"-p = report but don't start audio devices\n"
|
|
"-h = print this usage message\n";
|
|
|
|
cmRptPrintf(rpt,"%s",msg);
|
|
}
|
|
|
|
// Get a command line option.
|
|
int _cmAsGetOpt( int argc, const char* argv[], const char* label, int defaultVal, bool boolFl )
|
|
{
|
|
int i = 0;
|
|
for(; i<argc; ++i)
|
|
if( strcmp(label,argv[i]) == 0 )
|
|
{
|
|
if(boolFl)
|
|
return 1;
|
|
|
|
if( i == (argc-1) )
|
|
return defaultVal;
|
|
|
|
return atoi(argv[i+1]);
|
|
}
|
|
|
|
return defaultVal;
|
|
}
|
|
|
|
bool _cmAsGetBoolOpt( int argc, const char* argv[], const char* label, bool defaultVal )
|
|
{ return _cmAsGetOpt(argc,argv,label,defaultVal?1:0,true)!=0; }
|
|
|
|
int _cmAsGetIntOpt( int argc, const char* argv[], const char* label, int defaultVal )
|
|
{ return _cmAsGetOpt(argc,argv,label,defaultVal,false); }
|
|
|
|
|
|
void cmAudioSysTest( cmRpt_t* rpt, int argc, const char* argv[] )
|
|
{
|
|
cmAudioSysCfg_t cfg;
|
|
cmAudioSysSubSys_t ss;
|
|
cmAudioSysH_t h = cmAudioSysNullHandle;
|
|
cmAudioSysStatus_t status;
|
|
_cmAsTestCbRecd cbRecd = {1000.0,0,48000.0,0};
|
|
|
|
cfg.ssArray = &ss;
|
|
cfg.ssCnt = 1;
|
|
//cfg.afpArray= NULL;
|
|
//cfg.afpCnt = 0;
|
|
cfg.meterMs = 50;
|
|
|
|
if(_cmAsGetBoolOpt(argc,argv,"-h",false))
|
|
_cmAsPrintUsage(rpt);
|
|
|
|
cbRecd.srate = _cmAsGetIntOpt(argc,argv,"-r",48000);
|
|
cbRecd.synthFl = _cmAsGetBoolOpt(argc,argv,"-t",false)==false;
|
|
|
|
ss.args.rpt = rpt;
|
|
ss.args.inDevIdx = _cmAsGetIntOpt( argc,argv,"-i",0);
|
|
ss.args.outDevIdx = _cmAsGetIntOpt( argc,argv,"-o",2);
|
|
ss.args.syncInputFl = _cmAsGetBoolOpt(argc,argv,"-s",true);
|
|
ss.args.msgQueueByteCnt = _cmAsGetIntOpt( argc,argv,"-m",8192);
|
|
ss.args.devFramesPerCycle = _cmAsGetIntOpt( argc,argv,"-f",512);
|
|
ss.args.dspFramesPerCycle = _cmAsGetIntOpt( argc,argv,"-d",64);;
|
|
ss.args.audioBufCnt = _cmAsGetIntOpt( argc,argv,"-b",3);
|
|
ss.args.srate = cbRecd.srate;
|
|
ss.cbFunc = _cmAsTestCb; // set the DSP entry function
|
|
ss.cbDataPtr = &cbRecd; // set the DSP function argument record
|
|
|
|
cmRptPrintf(rpt,"in:%i out:%i syncFl:%i que:%i fpc:%i dsp:%i bufs:%i sr:%f\n",ss.args.inDevIdx,ss.args.outDevIdx,ss.args.syncInputFl,
|
|
ss.args.msgQueueByteCnt,ss.args.devFramesPerCycle,ss.args.dspFramesPerCycle,ss.args.audioBufCnt,ss.args.srate);
|
|
|
|
if( cmApNrtAllocate(rpt) != kOkApRC )
|
|
goto errLabel;
|
|
|
|
if( cmApFileAllocate(rpt) != kOkApRC )
|
|
goto errLabel;
|
|
|
|
// initialize the audio device system
|
|
if( cmApInitialize(rpt) != kOkApRC )
|
|
goto errLabel;
|
|
|
|
cmApReport(rpt);
|
|
|
|
// initialize the audio buffer
|
|
if( cmApBufInitialize( cmApDeviceCount(), cfg.meterMs ) != kOkApRC )
|
|
goto errLabel;
|
|
|
|
// initialize the audio system
|
|
if( cmAudioSysAllocate(&h,rpt,&cfg) != kOkAsRC )
|
|
goto errLabel;
|
|
|
|
// start the audio system
|
|
cmAudioSysEnable(h,true);
|
|
|
|
char c = 0;
|
|
printf("q=quit a-g=note n=ch r=rqst s=status\n");
|
|
|
|
// simulate a host event loop
|
|
while(c != 'q')
|
|
{
|
|
_cmAsTestMsg msg = {0,0,0,0};
|
|
bool fl = true;
|
|
|
|
// wait here for a key press
|
|
c =(char)fgetc(stdin);
|
|
fflush(stdin);
|
|
|
|
|
|
switch(c)
|
|
{
|
|
case 'c': msg.hz = cmMidiToHz(60); break;
|
|
case 'd': msg.hz = cmMidiToHz(62); break;
|
|
case 'e': msg.hz = cmMidiToHz(64); break;
|
|
case 'f': msg.hz = cmMidiToHz(65); break;
|
|
case 'g': msg.hz = cmMidiToHz(67); break;
|
|
case 'a': msg.hz = cmMidiToHz(69); break;
|
|
case 'b': msg.hz = cmMidiToHz(71); break;
|
|
|
|
case 'r': msg.id = 1; break; // request DSP process to send a callback count
|
|
|
|
case 'n': ++_cmAsTestChIdx; printf("ch:%i\n",_cmAsTestChIdx); break;
|
|
|
|
case 's':
|
|
// report the audio system status
|
|
cmAudioSysStatus(h,0,&status);
|
|
printf("phs:%li cb count:%i (upd:%i wake:%i acb:%i msgs:%i)\n",cbRecd.phs, cbRecd.cbCnt, status.updateCnt, status.wakeupCnt, status.audioCbCnt, status.msgCbCnt);
|
|
//printf("%f \n",status.oMeterArray[0]);
|
|
fl = false;
|
|
break;
|
|
|
|
default:
|
|
fl=false;
|
|
|
|
}
|
|
|
|
if( fl )
|
|
{
|
|
// transmit a command to the DSP process
|
|
cmAudioSysDeliverMsg(h,&msg, sizeof(msg), cmInvalidId);
|
|
}
|
|
|
|
|
|
// check if messages are waiting to be delivered from the DSP process
|
|
unsigned msgByteCnt;
|
|
if((msgByteCnt = cmAudioSysIsMsgWaiting(h)) > 0 )
|
|
{
|
|
char buf[ msgByteCnt ];
|
|
|
|
// rcv a msg from the DSP process
|
|
if( cmAudioSysReceiveMsg(h,buf,msgByteCnt) == kOkAsRC )
|
|
{
|
|
_cmAsTestMsg* msg = (_cmAsTestMsg*)buf;
|
|
switch(msg->id)
|
|
{
|
|
case 1:
|
|
printf("RCV: Callback count:%i\n",msg->uint);
|
|
break;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
// report the audio buffer status
|
|
//cmApBufReport(ss.args.rpt);
|
|
}
|
|
|
|
// stop the audio system
|
|
cmAudioSysEnable(h,false);
|
|
|
|
|
|
goto exitLabel;
|
|
|
|
errLabel:
|
|
printf("AUDIO SYSTEM TEST ERROR\n");
|
|
|
|
exitLabel:
|
|
|
|
cmAudioSysFree(&h);
|
|
cmApFinalize();
|
|
cmApFileFree();
|
|
cmApNrtFree();
|
|
cmApBufFinalize();
|
|
|
|
}
|
|
|
|
/// [cmAudioSysTest]
|