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Quisk version 4.2.52

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This commit is contained in:
James C. Ahlstrom
2026-05-30 11:18:52 -04:00
parent e6b9d9dd05
commit b45a71b017
11 changed files with 161 additions and 102 deletions
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utility.c
+10 -9
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@@ -326,7 +326,7 @@ PyObject * QuiskPrintf(char * format, ...)
int CircularBuffer(int channel, complex double * cSamples, int nRead, int nWrite)
{
// Initialize with cSamples NULL and nRead equal to the buffer delay in samples.
// Read with nRead, write with nWrite. Only one can be non-zero.
// Read with nRead, write with nWrite. Only one can be non-zero for read/write. If both are zero, return nBuf.
// Return the number of samples read or written.
static struct _channel {
complex double * cBuf; // circular sample buffer; save samples until the buffer fills to nDelay
@@ -342,16 +342,19 @@ int CircularBuffer(int channel, complex double * cSamples, int nRead, int nWrite
if ( ! cSamples) { // initialize
ptChannel->nDelay = nRead;
ptChannel->sizeBuf = nRead * 8;
ptChannel->sizeBuf = nRead * 16;
ptChannel->cBuf = (complex double *)realloc(ptChannel->cBuf, ptChannel->sizeBuf * sizeof(complex double));
ptChannel->filling = 1;
memset(ptChannel->cBuf, 0, ptChannel->sizeBuf * sizeof(complex double));
ptChannel->nBuf = 0;
ptChannel->Windex = 0;
ptChannel->Rindex = 0;
ptChannel->nBuf = 0;
ptChannel->filling = 1;
return 0;
}
if ( ! ptChannel->cBuf)
return 0;
if (nRead == 0 && nWrite == 0)
return ptChannel->nBuf;
num = 0; // number of samples read or written
if (nWrite > 0) { // Copy samples from cSamples to cBuf
for (i = 0; i < nWrite && ptChannel->nBuf < ptChannel->sizeBuf; i++) {
@@ -363,13 +366,11 @@ int CircularBuffer(int channel, complex double * cSamples, int nRead, int nWrite
}
if (ptChannel->nBuf >= ptChannel->nDelay)
ptChannel->filling = 0;
//if (num != nWrite)
// QuiskPrintf("Circ nWrite %d %d %d %d\n", num, nWrite, ptChannel->nBuf, ptChannel->sizeBuf);
}
else if (nRead > 0) {
if (ptChannel->filling) { // return zero-valued samples
for (num = 0; num < nRead; num++)
cSamples[num] = 0;
}
else { // Copy samples from cBuf to cSamples
if ( ! ptChannel->filling) { // Copy samples from cBuf to cSamples
for (i = 0; i < nRead && ptChannel->nBuf > 0; i++) {
cSamples[i] = ptChannel->cBuf[ptChannel->Rindex++];
if (ptChannel->Rindex >= ptChannel->sizeBuf)