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Rearrangements to the receive thread.

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Magnitude conversion now happens immediately when sample data is
received, so there is no risk of newly received data clobbering old
data under CPU overload.
This commit is contained in:
Oliver Jowett 2015-04-09 18:51:31 +01:00
parent e6c81251bf
commit 15ea5ba3da
11 changed files with 234 additions and 160 deletions
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18
mode_s.c
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@ -1193,24 +1193,6 @@ void displayModesMessage(struct modesMessage *mm) {
printf("\n");
}
//
//=========================================================================
//
// Turn I/Q samples pointed by Modes.data into the magnitude vector
// pointed by Modes.magnitude.
//
void computeMagnitudeVector(uint16_t *p) {
uint16_t *m = &Modes.magnitude[Modes.trailing_samples];
uint32_t j;
memcpy(Modes.magnitude,&Modes.magnitude[MODES_ASYNC_BUF_SAMPLES], Modes.trailing_samples * 2);
// Compute the magnitudo vector. It's just SQRT(I^2 + Q^2), but
// we rescale to the 0-255 range to exploit the full resolution.
for (j = 0; j < MODES_ASYNC_BUF_SAMPLES; j ++) {
*m++ = Modes.maglut[*p++];
}
}
//
//=========================================================================