| 1 | /***************************************************************************/ |
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| 2 | /* */ |
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| 3 | /* ftmisc.h */ |
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| 4 | /* */ |
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| 5 | /* Miscellaneous macros for stand-alone rasterizer (specification */ |
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| 6 | /* only). */ |
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| 7 | /* */ |
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| 8 | /* Copyright 2005, 2009 by */ |
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| 9 | /* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
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| 10 | /* */ |
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| 11 | /* This file is part of the FreeType project, and may only be used */ |
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| 12 | /* modified and distributed under the terms of the FreeType project */ |
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| 13 | /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
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| 14 | /* this file you indicate that you have read the license and */ |
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| 15 | /* understand and accept it fully. */ |
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| 16 | /* */ |
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| 17 | /***************************************************************************/ |
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| 18 | |
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| 19 | |
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| 20 | /***************************************************/ |
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| 21 | /* */ |
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| 22 | /* This file is *not* portable! You have to adapt */ |
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| 23 | /* its definitions to your platform. */ |
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| 24 | /* */ |
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| 25 | /***************************************************/ |
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| 26 | |
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| 27 | #ifndef __FTMISC_H__ |
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| 28 | #define __FTMISC_H__ |
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| 29 | |
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| 30 | /* memset */ |
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| 31 | #include FT_CONFIG_STANDARD_LIBRARY_H |
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| 32 | |
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| 33 | #define FT_BEGIN_HEADER |
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| 34 | #define FT_END_HEADER |
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| 35 | |
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| 36 | #define FT_LOCAL_DEF( x ) static x |
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| 37 | |
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| 38 | /* from include/freetype2/fttypes.h */ |
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| 39 | |
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| 40 | typedef unsigned char FT_Byte; |
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| 41 | typedef signed int FT_Int; |
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| 42 | typedef unsigned int FT_UInt; |
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| 43 | typedef signed long FT_Long; |
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| 44 | typedef unsigned long FT_ULong; |
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| 45 | typedef signed long FT_F26Dot6; |
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| 46 | typedef int FT_Error; |
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| 47 | |
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| 48 | #define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \ |
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| 49 | ( ( (FT_ULong)_x1 << 24 ) | \ |
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| 50 | ( (FT_ULong)_x2 << 16 ) | \ |
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| 51 | ( (FT_ULong)_x3 << 8 ) | \ |
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| 52 | (FT_ULong)_x4 ) |
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| 53 | |
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| 54 | |
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| 55 | /* from src/ftcalc.c */ |
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| 56 | |
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| 57 | #include <inttypes.h> |
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| 58 | |
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| 59 | typedef int64_t FT_Int64; |
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| 60 | |
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| 61 | static FT_Long |
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| 62 | FT_MulDiv( FT_Long a, |
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| 63 | FT_Long b, |
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| 64 | FT_Long c ) |
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| 65 | { |
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| 66 | FT_Int s; |
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| 67 | FT_Long d; |
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| 68 | |
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| 69 | |
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| 70 | s = 1; |
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| 71 | if ( a < 0 ) { a = -a; s = -1; } |
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| 72 | if ( b < 0 ) { b = -b; s = -s; } |
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| 73 | if ( c < 0 ) { c = -c; s = -s; } |
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| 74 | |
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| 75 | d = (FT_Long)( c > 0 ? ( (FT_Int64)a * b + ( c >> 1 ) ) / c |
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| 76 | : 0x7FFFFFFFL ); |
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| 77 | |
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| 78 | return ( s > 0 ) ? d : -d; |
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| 79 | } |
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| 80 | |
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| 81 | #endif /* __FTMISC_H__ */ |
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| 82 | |
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| 83 | |
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| 84 | /* END */ |
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