From 74bfbcf3bc5736f39926acdd3ff03c026e3673ec Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Mon, 12 Mar 2018 15:42:56 +0000 Subject: lib/audio: Replace sqrt(a*a + b*b) with hypot(a, b) Signed-off-by: Chris Wilson Reviewed-by: Tvrtko Ursulin --- lib/igt_audio.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'lib/igt_audio.c') diff --git a/lib/igt_audio.c b/lib/igt_audio.c index 2321d1c6..229ce6c6 100644 --- a/lib/igt_audio.c +++ b/lib/igt_audio.c @@ -266,9 +266,7 @@ bool audio_signal_detect(struct audio_signal *signal, int channels, max = 0; for (i = 0; i < frames / 2; i++) { - amplitude[i] = sqrt(data[i] * data[i] + - data[frames - i] * - data[frames - i]); + amplitude[i] = hypot(data[i], data[frames - i]); if (amplitude[i] > max) max = amplitude[i]; } -- cgit v1.2.3