Initial commit

src/util.h

@@ -0,0 +1,112 @@
+/*
+** util.h
+**
+** This file is part of mkxp.
+**
+** Copyright (C) 2013 Jonas Kulla <Nyocurio@gmail.com>
+**
+** mkxp 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.
+**
+** mkxp 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 mkxp.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef UTIL_H
+#define UTIL_H
+
+static inline int
+wrapRange(int value, int min, int max)
+{
+	if (value >= min && value <= max)
+		return value;
+
+	while (value < min)
+		value += (max - min);
+
+	return value % (max - min);
+}
+
+template<typename T>
+static inline T bound(T value, T min, T max)
+{
+	if (value < min)
+		return min;
+
+	if (value > max)
+		return max;
+
+	return value;
+}
+
+template<typename T>
+static inline T min(T value1, T value2)
+{
+	return (value1 < value2) ? value1 : value2;
+}
+
+template<typename T>
+static inline T max(T value1, T value2)
+{
+	return (value1 > value2) ? value1 : value2;
+}
+
+static inline int
+findNextPow2(int start)
+{
+	int i = 1;
+	while (i < start)
+		i <<= 1;
+
+	return i;
+}
+
+#define ARRAY_SIZE(obj) (sizeof(obj) / sizeof((obj)[0]))
+
+#define elementsN(obj) const int obj##N = ARRAY_SIZE(obj)
+
+#define DECL_ATTR_DETAILED(name, type, keyword1, keyword2) \
+	keyword1 type get##name() keyword2; \
+	keyword1 void set##name(type value);
+
+#define DECL_ATTR(name, type) DECL_ATTR_DETAILED(name, type, , const)
+#define DECL_ATTR_VIRT(name, type) DECL_ATTR_DETAILED(name, type, virtual, const)
+#define DECL_ATTR_STATIC(name, type) DECL_ATTR_DETAILED(name, type, static, )
+#define DECL_ATTR_INLINE(name, type, loc) \
+	type get##name() const { return loc; } \
+	void set##name(type value) { loc = value; }
+
+/* Undef this if not needed */
+#define CHK_DISP GUARD_DISPOSED
+
+#define DEF_ATTR_RD_SIMPLE_DETAILED(klass, name, type, location, keyword1) \
+	type klass :: get##name() keyword1 \
+	{ \
+		CHK_DISP \
+		return location; \
+	}
+
+#define DEF_ATTR_SIMPLE_DETAILED(klass, name, type, location, keyword1) \
+	DEF_ATTR_RD_SIMPLE_DETAILED(klass, name, type, location, keyword1) \
+	void klass :: set##name(type value) \
+{ \
+	CHK_DISP \
+	location = value; \
+}
+
+#define DEF_ATTR_RD_SIMPLE(klass, name, type, location) \
+	DEF_ATTR_RD_SIMPLE_DETAILED(klass, name, type, location, const)
+#define DEF_ATTR_SIMPLE(klass, name, type, location) \
+	DEF_ATTR_SIMPLE_DETAILED(klass, name, type, location, const)
+
+#define DEF_ATTR_SIMPLE_STATIC(klass, name, type, location) \
+	DEF_ATTR_SIMPLE_DETAILED(klass, name, type, location, )
+
+#endif // UTIL_H