misc/libfreetype/src/raster/ftmisc.h
author koda
Mon, 25 Apr 2011 01:46:54 +0200
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permissions -rw-r--r--
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/***************************************************************************/
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/*                                                                         */
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/*  ftmisc.h                                                               */
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/*                                                                         */
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/*    Miscellaneous macros for stand-alone rasterizer (specification       */
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/*    only).                                                               */
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/*                                                                         */
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/*  Copyright 2005, 2009, 2010 by                                          */
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/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
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/*                                                                         */
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/*  This file is part of the FreeType project, and may only be used        */
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/*  modified and distributed under the terms of the FreeType project       */
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/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
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/*  this file you indicate that you have read the license and              */
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/*  understand and accept it fully.                                        */
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/*                                                                         */
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/***************************************************************************/
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  /***************************************************/
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  /*                                                 */
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  /* This file is *not* portable!  You have to adapt */
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  /* its definitions to your platform.               */
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  /*                                                 */
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  /***************************************************/
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#ifndef __FTMISC_H__
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#define __FTMISC_H__
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  /* memset */
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#include FT_CONFIG_STANDARD_LIBRARY_H
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#define FT_BEGIN_HEADER
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#define FT_END_HEADER
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#define FT_LOCAL_DEF( x )   static x
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  /* from include/freetype2/fttypes.h */
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  typedef unsigned char  FT_Byte;
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  typedef signed int     FT_Int;
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  typedef unsigned int   FT_UInt;
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  typedef signed long    FT_Long;
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  typedef unsigned long  FT_ULong;
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  typedef signed long    FT_F26Dot6;
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  typedef int            FT_Error;
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#define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
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          ( ( (FT_ULong)_x1 << 24 ) |     \
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            ( (FT_ULong)_x2 << 16 ) |     \
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            ( (FT_ULong)_x3 <<  8 ) |     \
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              (FT_ULong)_x4         )
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  /* from include/freetype2/ftsystem.h */
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  typedef struct FT_MemoryRec_*  FT_Memory;
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  typedef void* (*FT_Alloc_Func)( FT_Memory  memory,
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                                  long       size );
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  typedef void (*FT_Free_Func)( FT_Memory  memory,
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                                void*      block );
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  typedef void* (*FT_Realloc_Func)( FT_Memory  memory,
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                                    long       cur_size,
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                                    long       new_size,
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                                    void*      block );
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  typedef struct FT_MemoryRec_
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  {
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    void*            user;
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    FT_Alloc_Func    alloc;
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    FT_Free_Func     free;
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    FT_Realloc_Func  realloc;
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  } FT_MemoryRec;
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  /* from src/ftcalc.c */
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#if ( defined _WIN32 || defined _WIN64 )
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  typedef __int64  FT_Int64;
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#else
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#include "inttypes.h"
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  typedef int64_t  FT_Int64;
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#endif
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  static FT_Long
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  FT_MulDiv( FT_Long  a,
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             FT_Long  b,
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             FT_Long  c )
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  {
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    FT_Int   s;
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    FT_Long  d;
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    s = 1;
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    if ( a < 0 ) { a = -a; s = -1; }
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    if ( b < 0 ) { b = -b; s = -s; }
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    if ( c < 0 ) { c = -c; s = -s; }
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    d = (FT_Long)( c > 0 ? ( (FT_Int64)a * b + ( c >> 1 ) ) / c
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                         : 0x7FFFFFFFL );
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    return ( s > 0 ) ? d : -d;
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  }
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#endif /* __FTMISC_H__ */
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/* END */