kc3-lang/freetype/src/base/ftcalc.h

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• Hash : f993b6a0
  Author :
  Date : 2000-01-08T17:10:33
  

  demos/config/x11/rules.mk: support for multiple X11R6 entries in $(PATH) added. ftxbbox.c, ftcalc.c, ftdebug.c, ftdriver.h: doc fixes. ftdebug.c: formatting. ftdebug.h: making makros `;'-safe (i.e., they can now be used within if-else clauses without side effects resp. don't produce a single `;').

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• src/base/ftcalc.h

• /***************************************************************************/
  /*                                                                         */
  /*  ftcalc.h                                                               */
  /*                                                                         */
  /*    Arithmetic computations (specification).                             */
  /*                                                                         */
  /*  Copyright 1996-2000 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, LICENSE.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 <freetype.h>
  #include <ftconfig.h>   /* for LONG64 */
  
  #ifdef __cplusplus
    extern "C" {
  #endif
  
  
  #ifdef LONG64
  
  
    typedef INT64  FT_Int64;
  
  #define ADD_64( x, y, z )  z = (x) + (y)
  #define MUL_64( x, y, z )  z = (FT_Int64)(x) * (y)
  
  #define DIV_64( x, y )     ( (x) / (y) )
  
  #else /* LONG64 */
  
    typedef struct  FT_Int64_
    {
      FT_Word32  lo;
      FT_Word32  hi;
  
    } FT_Int64;
  
  #define ADD_64( x, y, z )  FT_Add64( &x, &y, &z )
  #define MUL_64( x, y, z )  FT_MulTo64( x, y, &z )
  #define DIV_64( x, y )     FT_Div64by32( &x, y )
  
    BASE_DEF
    void      FT_Add64    ( FT_Int64* x, FT_Int64* y, FT_Int64*  z );
    BASE_DEF
    void      FT_MulTo64  ( FT_Int32  x, FT_Int32  y, FT_Int64*  z );
    BASE_DEF
    FT_Int32  FT_Div64by32( FT_Int64* x, FT_Int32  y );
  
  
  #endif /* LONG64 */
  
  
  #define SQRT_32( x )       FT_Sqrt32( x )
  
    BASE_DEF
    FT_Int32  FT_Sqrt32( FT_Int32  l );
  
    /*************************************************************************/
    /*                                                                       */
    /* FT_MulDiv() and FT_MulFix() are declared in freetype.h.               */
    /*                                                                       */
    /*************************************************************************/
  
  
  #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) ) )
  
  #ifdef __cplusplus
    }
  #endif
  
  #endif /* FTCALC_H */
  
  
  /* END */
  

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