1 files changed, 65 insertions, 0 deletions
diff --git a/tools/shapegame/dt/misc.h b/tools/shapegame/dt/misc.h
new file mode 100644
index 0000000..b7b2f50
--- /dev/null
+++ b/tools/shapegame/dt/misc.h
@@ -0,0 +1,65 @@
+/* dt - misc.h
+ *
+ * Copyright (C) 2006 Pedro Felzenszwalb
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+/* random stuff */
+
+#ifndef MISC_H
+#define MISC_H
+
+#include <cmath>
+
+#ifndef M_PI
+#define M_PI 3.141592653589793
+#endif
+
+typedef unsigned char uchar;
+
+typedef struct { uchar r, g, b; } rgb;
+
+inline bool operator==(const rgb &a, const rgb &b) {
+  return ((a.r == b.r) && (a.g == b.g) && (a.b == b.b));
+}
+
+template <class T>
+inline T abs(const T &x) { return (x > 0 ? x : -x); };
+
+template <class T>
+inline int sign(const T &x) { return (x >= 0 ? 1 : -1); };
+
+template <class T>
+inline T square(const T &x) { return x*x; };
+
+template <class T>
+inline T bound(const T &x, const T &min, const T &max) {
+  return (x < min ? min : (x > max ? max : x));
+}
+
+template <class T>
+inline bool check_bound(const T &x, const T&min, const T &max) {
+  return ((x < min) || (x > max));
+}
+
+inline int vlib_round(float x) { return (int)(x + 0.5F); }
+
+inline int vlib_round(double x) { return (int)(x + 0.5); }
+
+inline double gaussian(double val, double sigma) {
+  return exp(-square(val/sigma)/2)/(sqrt(2*M_PI)*sigma);
+}
+
+#endif