[1.5] Man page syntax fixes. Thanks to vskytta for patch.

[openjpeg.git] / libopenjpeg / fix.h

diff --git a/libopenjpeg/fix.h b/libopenjpeg/fix.h
index 768cada2659289b5d411cd5bf57298593135ec94..bcb2acb54c8ff9946df869bb872341297d43e2a6 100644 (file)
--- a/libopenjpeg/fix.h
+++ b/libopenjpeg/fix.h
@@ -1,5 +1,10 @@
 /*
- * Copyright (c) 2001-2002, David Janssens
+ * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
+ * Copyright (c) 2002-2007, Professor Benoit Macq
+ * Copyright (c) 2001-2003, David Janssens
+ * Copyright (c) 2002-2003, Yannick Verschueren
+ * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
+ * Copyright (c) 2005, Herve Drolon, FreeImage Team
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -23,11 +28,37 @@
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
-
-
 #ifndef __FIX_H
 #define __FIX_H
 
-int fix_mul(int a, int b);
-
+#if defined(_MSC_VER) || defined(__BORLANDC__)
+#define int64 __int64
+#else
+#define int64 long long
 #endif
+
+/**
+@file fix.h
+@brief Implementation of operations of specific multiplication (FIX)
+
+The functions in FIX.H have for goal to realize specific multiplication.
+*/
+
+/** @defgroup FIX FIX - Implementation of operations of specific multiplication */
+/*@{*/
+
+/**
+Multiply two fixed-precision rational numbers.
+@param a
+@param b
+@return Returns a * b
+*/
+static INLINE int fix_mul(int a, int b) {
+    int64 temp = (int64) a * (int64) b ;
+    temp += temp & 4096;
+    return (int) (temp >> 13) ;
+}
+
+/*@}*/
+
+#endif /* __FIX_H */