diff -r f66674566702 -r 18fedaf0292a fontservices/freetypefontrasteriser/freetype2/include/freetype/internal/ftcalc.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fontservices/freetypefontrasteriser/freetype2/include/freetype/internal/ftcalc.h	Mon Feb 08 15:30:13 2010 +0000
@@ -0,0 +1,129 @@
+/***************************************************************************/
+/*                                                                         */
+/*  ftcalc.h                                                               */
+/*                                                                         */
+/*    Arithmetic computations (specification).                             */
+/*                                                                         */
+/*  Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006 by                   */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, FTL.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+#ifndef __FTCALC_H__
+#define __FTCALC_H__
+
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+
+
+FT_BEGIN_HEADER
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    FT_FixedSqrt                                                       */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    Computes the square root of a 16.16 fixed point value.             */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    x :: The value to compute the root for.                            */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    The result of `sqrt(x)'.                                           */
+  /*                                                                       */
+  /* <Note>                                                                */
+  /*    This function is not very fast.                                    */
+  /*                                                                       */
+  FT_BASE( FT_Int32 )
+  FT_SqrtFixed( FT_Int32  x );
+
+
+#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    FT_Sqrt32                                                          */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    Computes the square root of an Int32 integer (which will be        */
+  /*    handled as an unsigned long value).                                */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    x :: The value to compute the root for.                            */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    The result of `sqrt(x)'.                                           */
+  /*                                                                       */
+  FT_EXPORT( FT_Int32 )
+  FT_Sqrt32( FT_Int32  x );
+
+#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* FT_MulDiv() and FT_MulFix() are declared in freetype.h.               */
+  /*                                                                       */
+  /*************************************************************************/
+
+
+#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    FT_MulDiv_No_Round                                                 */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    A very simple function used to perform the computation `(a*b)/c'   */
+  /*    (without rounding) with maximal accuracy (it uses a 64-bit         */
+  /*    intermediate integer whenever necessary).                          */
+  /*                                                                       */
+  /*    This function isn't necessarily as fast as some processor specific */
+  /*    operations, but is at least completely portable.                   */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    a :: The first multiplier.                                         */
+  /*    b :: The second multiplier.                                        */
+  /*    c :: The divisor.                                                  */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    The result of `(a*b)/c'.  This function never traps when trying to */
+  /*    divide by zero; it simply returns `MaxInt' or `MinInt' depending   */
+  /*    on the signs of `a' and `b'.                                       */
+  /*                                                                       */
+  FT_BASE( FT_Long )
+  FT_MulDiv_No_Round( FT_Long  a,
+                      FT_Long  b,
+                      FT_Long  c );
+
+#endif /* TT_CONFIG_OPTION_BYTECODE_INTERPRETER */
+
+
+#define INT_TO_F26DOT6( x )    ( (FT_Long)(x) << 6  )
+#define INT_TO_F2DOT14( x )    ( (FT_Long)(x) << 14 )
+#define INT_TO_FIXED( x )      ( (FT_Long)(x) << 16 )
+#define F2DOT14_TO_FIXED( x )  ( (FT_Long)(x) << 2  )
+#define FLOAT_TO_FIXED( x )    ( (FT_Long)( x * 65536.0 ) )
+
+#define ROUND_F26DOT6( x )     ( x >= 0 ? (    ( (x) + 32 ) & -64 )     \
+                                        : ( -( ( 32 - (x) ) & -64 ) ) )
+
+
+FT_END_HEADER
+
+#endif /* __FTCALC_H__ */
+
+
+/* END */