forked from KolibriOS/kolibrios
6496d04506
This version of menuetlibc was taken from revision 4743, right before I made any changes git-svn-id: svn://kolibrios.org@4973 a494cfbc-eb01-0410-851d-a64ba20cac60
98 lines
2.5 KiB
C
98 lines
2.5 KiB
C
/*******************************************************************
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*
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* ttcalc.h
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*
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* Arithmetic Computations (specification).
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*
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* Copyright 1996-1999 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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#ifndef TTCALC_H
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#define TTCALC_H
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#include "ttconfig.h"
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#include "freetype.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef LONG64
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typedef INT64 TT_Int64;
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#define ADD_64( x, y, z ) z = x + y
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#define SUB_64( x, y, z ) z = x - y
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#define MUL_64( x, y, z ) z = (TT_Int64)(x) * (y)
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#define DIV_64( x, y ) ( (x) / (y) )
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#define SQRT_64( x ) Sqrt64( x )
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#define SQRT_32( x ) Sqrt32( x )
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LOCAL_DEF TT_Int32 Sqrt64( TT_Int64 l );
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#else /* LONG64 */
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struct TT_Int64_
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{
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TT_Word32 lo;
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TT_Word32 hi;
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};
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typedef struct TT_Int64_ TT_Int64;
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#define ADD_64( x, y, z ) Add64( &x, &y, &z )
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#define SUB_64( x, y, z ) Sub64( &x, &y, &z )
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#define MUL_64( x, y, z ) MulTo64( x, y, &z )
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#define DIV_64( x, y ) Div64by32( &x, y )
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#define SQRT_64( x ) Sqrt64( &x )
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#define SQRT_32( x ) Sqrt32( x )
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LOCAL_DEF void Add64( TT_Int64* x, TT_Int64* y, TT_Int64* z );
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LOCAL_DEF void Sub64( TT_Int64* x, TT_Int64* y, TT_Int64* z );
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LOCAL_DEF void MulTo64( TT_Int32 x, TT_Int32 y, TT_Int64* z );
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LOCAL_DEF TT_Int32 Div64by32( TT_Int64* x, TT_Int32 y );
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LOCAL_DEF int Order64( TT_Int64* z );
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LOCAL_DEF TT_Int32 Sqrt64( TT_Int64* l );
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#endif /* LONG64 */
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/* The two following functions are now part of the API! */
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/* TT_Long TT_MulDiv( TT_Long a, TT_Long b, TT_Long c ); */
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/* TT_Long TT_MulFix( TT_Long a, TT_Long b ); */
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#define INT_TO_F26DOT6( x ) ( (Long)(x) << 6 )
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#define INT_TO_F2DOT14( x ) ( (Long)(x) << 14 )
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#define INT_TO_FIXED( x ) ( (Long)(x) << 16 )
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#define F2DOT14_TO_FIXED( x ) ( (Long)(x) << 2 )
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#define FLOAT_TO_FIXED( x ) ( (Long)(x * 65536.0) )
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#define ROUND_F26DOT6( x ) ( x >= 0 ? ( ((x) + 32) & -64) \
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: ( -((32 - (x)) & -64) ) )
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#ifdef __cplusplus
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}
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#endif
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#endif /* TTCALC_H */
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/* END */
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