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tools/antorcha.c (samples): move reading of X/Y samples to shared function
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18c7b43a59
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@ -280,6 +280,22 @@ static void image(struct atrf_dsc *dsc, const char *name)
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/* ----- Samples ----------------------------------------------------------- */
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/* ----- Samples ----------------------------------------------------------- */
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static int read_sample(uint8_t **s, uint16_t *t_high, uint16_t *t_low,
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uint16_t *last)
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{
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int v;
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*t_low = *(*s)++;
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*t_low |= *(*s)++ << 8;
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if (*t_low < *last)
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(*t_high)++;
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*last = *t_low;
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v = *(*s)++;
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v |= *(*s)++ << 8;
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return v;
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}
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static void samples(struct atrf_dsc *dsc)
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static void samples(struct atrf_dsc *dsc)
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{
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{
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uint8_t buf[MAX_PSDU] = { 0, };
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uint8_t buf[MAX_PSDU] = { 0, };
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@ -311,26 +327,12 @@ static void samples(struct atrf_dsc *dsc)
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t_high |= *s++ << 8;
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t_high |= *s++ << 8;
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last = 0;
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last = 0;
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while (s < buf+got-2) {
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while (s < buf+got-2) {
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t_low = *s++;
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x = read_sample(&s, &t_high, &t_low, &last);
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t_low |= *s++ << 8;
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if (t_low < last)
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t_high++;
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last = t_low;
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x = *s++;
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x |= *s++ << 8;
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if (debug)
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if (debug)
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fprintf(stderr, "\t%11.6f %d",
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fprintf(stderr, "\t%11.6f %d",
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(t_high << 16 | t_low)/1000000.0, x);
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(t_high << 16 | t_low)/1000000.0, x);
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t_low = *s++;
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y = read_sample(&s, &t_high, &t_low, &last);
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t_low |= *s++ << 8;
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if (t_low < last)
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t_high++;
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last = t_low;
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y = *s++;
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y |= *s++ << 8;
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if (debug)
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if (debug)
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fprintf(stderr, "\t%11.6f %d\n",
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fprintf(stderr, "\t%11.6f %d\n",
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(t_high << 16 | t_low)/1000000.0, y);
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(t_high << 16 | t_low)/1000000.0, y);
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