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| version 1.4, 2014/02/08 15:16:17 | version 1.5, 2014/03/05 20:06:05 | ||
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| } | } | ||
| #endif | #endif | ||
| } | } | ||
| /* | |||
| * produce a square tone, for instance with: | |||
| * | |||
| * period = round / (220 * round / rate) | |||
| */ | |||
| int | |||
| sqrtone(int ctx, adata_t *out, int period, int vol, int todo) | |||
| { | |||
| int i; | |||
| for (i = todo; i > 0; i--) { | |||
| if (ctx == 0) { | |||
| vol = -vol; | |||
| ctx = period / 2; | |||
| } | |||
| ctx--; | |||
| *(out++) += vol; | |||
| } | |||
| return ctx; | |||
| } |