Préparation de quelques bouts de code pour tester les routines de maths proprement.

git-svn-id: file:///var/svn/2012-violon-leds/trunk@17 6be1fa4d-33ac-4c33-becc-79fcb3794bb6

1 files changed, 32 insertions, 1 deletions

diff --git a/tests/test6/test6.c b/tests/test6/test6.c
index 2cb7074..abaa3e4 100644
--- a/tests/test6/test6.c
+++ b/tests/test6/test6.c
@@ -2,6 +2,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+typedef void (*cb_processdata_t)(int n, float *);
+
+
 //#if 1 //(UGLY_IEEE754_FLOAT32_HACK :-)
 /*
 static inline float todB_a(const float *x){
@@ -51,9 +54,37 @@ void dump_testfile() {
 	fclose(fh);
 }
 
+void parse_testfile(cb_processdata_t cb) {
+	int n;
+	float f[2048];
+	FILE *fh=fopen("./test.raw", "r");
+	if (fh==NULL) return;
+
+	n=128;
+	while ( (n=fread(f, sizeof(float), n, fh)) > 0 ) {
+		cb(n,f);
+		n=128+256*(rand()%7);
+	}
+	fclose(fh);
+}
+
+void process_mean_max(int n, float *f) {
+	int i;
+	float t, mean=0, max=0;
+	for(i=0;i<n;i++) {
+		t=fabs(f[i]);
+		mean+=t;
+		if (t>max) max=t;
+	}
+	mean/=n;
+
+	printf("%+.3f %+.3f %4i\n", mean, max, n);
+}
+
 int main() {
 	//test_todb_a();
-	dump_testfile();
+	//dump_testfile();
+	parse_testfile(process_mean_max);
 
 	return 0;
 }