From a093dd0ee969be5150fdff459db385fbc5613452 Mon Sep 17 00:00:00 2001
From: Lars-Dominik Braun <lars@6xq.net>
Date: Sun, 22 Mar 2015 10:12:05 +0100
Subject: Rewrite flam3_random

Disables flam3_mutate.
---
 math.h | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'math.h')

diff --git a/math.h b/math.h
index dc72d87..fa49d09 100644
--- a/math.h
+++ b/math.h
@@ -19,6 +19,7 @@
 #pragma once
 
 #include <math.h>
+#include <assert.h>
 
 #include "build/config.h"
 
@@ -79,6 +80,20 @@ inline double sum(const double2 in) {
 	return in[0] + in[1];
 }
 
+inline void normalize (double * const a, const size_t n) {
+	double sum = 0.0;
+	for (unsigned int j = 0; j < n; j++) {
+		sum += a[j];
+	}
+	assert (sum > 0.0);
+
+	for (unsigned int j = 0; j < n; j++) {
+		a[j] /= sum;
+	}
+}
+
+#define max(a,b) ((a) > (b) ? (a) : (b))
+
 /*	Vector wrapping function, could be replaced by true vector functions later
  */
 
-- 
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