1 files changed, 7 insertions, 0 deletions
diff --git a/src/common.h b/src/common.h
index 86d98ad..b6e90d2 100644
--- a/src/common.h
+++ b/src/common.h
@@ -178,4 +178,11 @@ static inline void mst2_dump(mst2_t M)
 	printf("[%f\t%f\t%f]\n", 0.0, 0.0, 1.0);
 }
 
+static inline float remap(float x, float a0, float b0, float a1, float b1)
+{
+	return (x - a0) * (b1 - a1) / (b0 - a0) + a1;
+}
+
+#define DEG2RAD(x) ((x) / (180.0f / M_PI))
+
 #endif // _COMMON_H