cml/libcm
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

cmDspBuiltIn.c cmDspWaveTable can now report the current audio file sample index periodically rather than on every exec.

Browse Source
This commit is contained in:
kevin 2013-01-13 16:40:00 -08:00
parent a40294f9a9
commit ab0589a216
1 changed files with 20 additions and 56 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

76
dsp/cmDspBuiltIn.c
View File

@ -2779,7 +2779,8 @@ typedef struct
unsigned offSymId;
unsigned doneSymId;
bool useThreadFl;
unsigned wt_oi;
unsigned minAfIndexRptCnt; // min count of audio samples between transmitting the current audio file index
unsigned afIndexRptCnt; // current audio file sample index count
} cmDspWaveTable_t;
bool _cmDspWaveTableThreadFunc( void* param);
@ -2810,9 +2811,12 @@ cmDspInst_t* _cmDspWaveTableAlloc(cmDspCtx_t* ctx, cmDspClass_t* classPtr, unsi
// get the filename given in the va_list (or NULL if no filename was given)
const cmChar_t* fn = cmDspDefaultStrcz(&p->inst,kFnWtId);
p->offSymId = cmSymTblRegisterStaticSymbol(ctx->stH,"off");
p->onSymId = cmSymTblRegisterStaticSymbol(ctx->stH,"on");
p->doneSymId= cmSymTblRegisterStaticSymbol(ctx->stH,"done");
p->offSymId = cmSymTblRegisterStaticSymbol(ctx->stH,"off");
p->onSymId = cmSymTblRegisterStaticSymbol(ctx->stH,"on");
p->doneSymId = cmSymTblRegisterStaticSymbol(ctx->stH,"done");
double adCurFileIdxRptPeriodMs = 100.0;
p->minAfIndexRptCnt = floor(adCurFileIdxRptPeriodMs * cmDspSampleRate(ctx) / 1000.0);
cmDspSetDefaultUInt( ctx, &p->inst, kLenWtId, 0, cmDspSampleRate(ctx));
cmDspSetDefaultUInt( ctx, &p->inst, kShapeWtId, 0, kSilenceWtId );
@ -3202,56 +3206,6 @@ cmDspRC_t _cmDspWaveTableReset(cmDspCtx_t* ctx, cmDspInst_t* inst, const cmDspEv
}
cmDspRC_t _cmDspWaveTableExec1(cmDspCtx_t* ctx, cmDspInst_t* inst, const cmDspEvt_t* evt )
{
cmDspRC_t rc = kOkDspRC;
cmDspWaveTable_t* p = (cmDspWaveTable_t*)inst;
unsigned mode = cmDspSymbol(inst,kCmdWtId);
unsigned srcId = cmDspUInt(inst,kShapeWtId);
if( mode == p->offSymId || srcId == kSilenceWtId )
{
cmDspZeroAudioBuf(ctx,inst,kOutWtId);
return kOkDspRC;
}
cmSample_t* outV = cmDspAudioBuf(ctx,inst,kOutWtId,0);
unsigned outCnt = cmDspVarRows(inst,kOutWtId);
unsigned wtSmpCnt = cmDspUInt(inst,kLenWtId);
double gain = cmDspDouble(inst,kGainWtId);
unsigned i;
// for each output sample
for(i=0; i<outCnt; ++i)
{
p->wt_oi = (p->wt_oi + 1) % wtSmpCnt;
outV[i] = gain * p->wt[p->wt_oi];
}
// if we are reading from a file ...
if( srcId == kFileWtId )
{
unsigned rdSmpCnt = 8192; // file read block sample count
p->wtn += outCnt;
// ... and there are rdSmpCnt avail locations in the wave table
if( p->wtn >= rdSmpCnt )
rc = _cmDspWaveTableReadAudioFile(ctx, p, wtSmpCnt, rdSmpCnt );
// send the current audio file index
if( p->doneFl && p->cfi < p->cfn && p->cfn <= (p->cfi + outCnt) )
cmDspSetSymbol(ctx,inst,kDoneWtId,p->doneSymId);
else
cmDspSetUInt(ctx,inst,kFIdxWtId,p->cfi);
p->cfi += outCnt;
}
return rc;
}
cmDspRC_t _cmDspWaveTableExec(cmDspCtx_t* ctx, cmDspInst_t* inst, const cmDspEvt_t* evt )
{
@ -3315,11 +3269,21 @@ cmDspRC_t _cmDspWaveTableExec(cmDspCtx_t* ctx, cmDspInst_t* inst, const cmDspEvt
// send the current audio file index
if( p->doneFl && p->cfi < p->cfn && p->cfn <= (p->cfi + outCnt) )
{
cmDspSetUInt(ctx,inst,kFIdxWtId,p->cfn);
cmDspSetSymbol(ctx,inst,kDoneWtId,p->doneSymId);
}
else
cmDspSetUInt(ctx,inst,kFIdxWtId,p->cfi);
{
if( p->afIndexRptCnt >= p->minAfIndexRptCnt )
{
p->afIndexRptCnt -= p->minAfIndexRptCnt;
cmDspSetUInt(ctx,inst,kFIdxWtId,p->cfi);
}
}
p->cfi += outCnt;
p->afIndexRptCnt += outCnt;
p->cfi += outCnt;
}