Werner Lemberg
20 years ago
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eaab4a3c3b
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f9fccbee8b
4 changed files with 178 additions and 30 deletions
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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 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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#include <string.h> /* memset */ |
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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 src/ftcalc.c */ |
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#include <inttypes.h> |
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typedef int64_t FT_Int64; |
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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 */ |
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