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Slight optimization by using memset instead of for loops to clear filters and buffers

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This commit is contained in:
Ed Gonzalez 2015-02-05 11:38:54 -06:00
parent 58fbc0bb2e
commit 3975a608d0
1 changed files with 8 additions and 26 deletions
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34
DSP_API/SmartSDR_Interface/sched_waveform.c
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@ -373,7 +373,6 @@ static void* _sched_waveform_thread(void* param)
{
// convert the buffer to little endian
_dsp_convertBufEndian(buf_desc);
//output("buf_desc unlinked with mag %.6g", hal_BufferMag(buf_desc));
//output(" \"Processed\" buffer stream id = 0x%08X\n", buf_desc->stream_id);
@ -392,14 +391,8 @@ static void* _sched_waveform_thread(void* param)
/* Clear filter memory */
for ( i = 0; i < MEM_24; i++) {
float_in_24k[i] = 0.0;
}
for ( i = 0; i < MEM_8; i++ ) {
float_in_8k[i] = 0;
}
memset(float_in_24k, 0, MEM_24 * sizeof(float));
memset(float_in_8k, 0, MEM_8 * sizeof(float));
/* Requires us to set initial_rx to FALSE which we do at the end of
* the first loop
@ -512,12 +505,9 @@ static void* _sched_waveform_thread(void* param)
}
} else {
output("RX Starved buffer out\n");
for( i=0 ; i<128 ; i++)
{
((Complex*)buf_desc->buf_ptr)[i].real = 0.0f;
((Complex*)buf_desc->buf_ptr)[i].imag = 0.0f;
}
memset( buf_desc->buf_ptr, 0, PACKET_SAMPLES * sizeof(Complex));
if(initial_rx)
initial_rx = FALSE;
}
@ -539,13 +529,8 @@ static void* _sched_waveform_thread(void* param)
/* Clear filter memory */
for ( i = 0; i < MEM_24; i++) {
tx_float_in_24k[i] = 0.0;
}
for ( i = 0; i < MEM_8; i++ ) {
tx_float_in_8k[i] = 0;
}
memset(tx_float_in_24k, 0, MEM_24 * sizeof(float));
memset(tx_float_in_8k, 0, MEM_8 * sizeof(float));
/* Requires us to set initial_rx to FALSE which we do at the end of
* the first loop
@ -645,12 +630,9 @@ static void* _sched_waveform_thread(void* param)
}
} else {
output("TX Starved buffer out\n");
for( i=0 ; i<128 ; i++)
{
((Complex*)buf_desc->buf_ptr)[i].real = 0.0f;
((Complex*)buf_desc->buf_ptr)[i].imag = 0.0f;
}
memset( buf_desc->buf_ptr, 0, PACKET_SAMPLES * sizeof(Complex));
if(initial_tx)
initial_tx = FALSE;
}