Upgrade to version 4.1 of radeon driver.

Includes some common routines which may be used by other drivers.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8405 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/graphics/radeon/utils.h

@@ -0,0 +1,48 @@
+/*
+	Copyright (c) 2002/03, Thomas Kurschel
+	
+
+	Part of Radeon accelerant
+		
+	Utility functions
+*/
+
+#ifndef _UTILS_H
+#define _UTILS_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+extern int log2( uint32 x );
+
+static inline int RoundDiv( int num, int den )
+{
+	return (num + (den / 2)) / den;
+}
+
+static inline int32 RoundDiv64( int64 num, int32 den )
+{
+	return (num + (den / 2)) / den;
+}
+
+static inline int ceilShiftDiv( int num, int shift )
+{
+	return (num + (1 << shift) - 1) >> shift;
+}
+
+static inline int ceilDiv( int num, int den )
+{
+	return (num + den - 1) / den;
+}
+
+// macros for fixed-point calculation
+#define FIX_SHIFT 32
+#define FIX_SCALE (1LL << FIX_SHIFT)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif