From e171309756cb0e407632b163ce588ea8262bc50e Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michael@niedermayer.cc>
Date: Sat, 25 Jul 2015 21:28:05 +0200
Subject: [PATCH] avutil/softfloat: Add a test for av_sincos_sf()
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavutil/softfloat.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/libavutil/softfloat.c b/libavutil/softfloat.c
index afce358813d..a9d1b0c319f 100644
--- a/libavutil/softfloat.c
+++ b/libavutil/softfloat.c
@@ -97,6 +97,18 @@ int main(void){
sf1 = av_int2sf(0xE0000001, 0);
printf("test4 softfloat: %.10lf (0x%08x %d)\n", (double)av_sf2double(sf1), sf1.mant, sf1.exp);
+ for(i= 0; i<4*36; i++){
+ int s, c;
+ double errs, errc;
+
+ av_sincos_sf(i*(1ULL<<32)/36/4, &s, &c);
+ errs = (double)s/ (1<<30) - sin(i*M_PI/36);
+ errc = (double)c/ (1<<30) - cos(i*M_PI/36);
+ if (fabs(errs) > 0.00000002 || fabs(errc) >0.001) {
+ printf("sincos FAIL %d %f %f %f %f\n", i, (float)s/ (1<<30), (float)c/ (1<<30), sin(i*M_PI/36), cos(i*M_PI/36));
+ }
+
+ }
return 0;
}
--
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