renamed and reorganized "jp3d" directory to "openjpeg3d". Is now a standalone directory, with independent cmake files. Done as it uses its own version of the openjpeg library and does not depend on the one currently developped. Will be removed from the trunk and stored in a branch.

libopenjpeg3d/int.h

@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2001-2003, David Janssens
+ * Copyright (c) 2002-2003, Yannick Verschueren
+ * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
+ * Copyright (c) 2005, Herve Drolon, FreeImage Team
+ * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __INT_H
+#define __INT_H
+/**
+@file int.h
+@brief Implementation of operations on integers (INT)
+
+The functions in INT.H have for goal to realize operations on integers.
+*/
+
+/** @defgroup INT INT - Implementation of operations on integers */
+/*@{*/
+
+/** @name Funciones generales (see also openjpeg3d.h) */
+/*@{*/
+/* ----------------------------------------------------------------------- */
+/**
+Get the minimum of two integers
+@return Returns a if a < b else b
+*/
+static  int int_min(int a, int b) {
+	return a < b ? a : b;
+}
+/**
+Get the maximum of two integers
+@return Returns a if a > b else b
+*/
+static  int int_max(int a, int b) {
+	return (a > b) ? a : b;
+}
+/**
+Clamp an integer inside an interval
+@return
+<ul>
+<li>Returns a if (min < a < max)
+<li>Returns max if (a > max)
+<li>Returns min if (a < min) 
+</ul>
+*/
+static int int_clamp(int a, int min, int max) {
+	if (a < min)
+		return min;
+	if (a > max)
+		return max;
+	return a;
+}
+/**
+@return Get absolute value of integer
+*/
+static  int int_abs(int a) {
+	return a < 0 ? -a : a;
+}
+
+static double dbl_abs(double a) {
+	return a < 0 ? -a : a;
+}
+/**
+Divide an integer and round upwards
+@return Returns a divided by b
+*/
+static  int int_ceildiv(int a, int b) {
+	return (a + b - 1) / b;
+}
+/**
+Divide an integer by a power of 2 and round upwards
+@return Returns a divided by 2^b
+*/
+static  int int_ceildivpow2(int a, int b) {
+	return (a + (1 << b) - 1) >> b;
+}
+/**
+Divide an integer by a power of 2 and round downwards
+@return Returns a divided by 2^b
+*/
+static  int int_floordivpow2(int a, int b) {
+	return a >> b;
+}
+/**
+Get logarithm of an integer and round downwards
+@return Returns log2(a)
+*/
+static  int int_floorlog2(int a) {
+	int l;
+	for (l = 0; a > 1; l++) {
+		a >>= 1;
+	}
+	return l;
+}
+/* ----------------------------------------------------------------------- */
+/*@}*/
+
+/*@}*/
+
+#endif