/* * $Id: cairo-wideint.h,v 1.12 2005-08-05 14:48:19 cworth Exp $ * * Copyright © 2004 Keith Packard * * This library is free software; you can redistribute it and/or * modify it either under the terms of the GNU Lesser General Public * License version 2.1 as published by the Free Software Foundation * (the "LGPL") or, at your option, under the terms of the Mozilla * Public License Version 1.1 (the "MPL"). If you do not alter this * notice, a recipient may use your version of this file under either * the MPL or the LGPL. * * You should have received a copy of the LGPL along with this library * in the file COPYING-LGPL-2.1; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * You should have received a copy of the MPL along with this library * in the file COPYING-MPL-1.1 * * The contents of this file are subject to the Mozilla Public License * Version 1.1 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY * OF ANY KIND, either express or implied. See the LGPL or the MPL for * the specific language governing rights and limitations. * * The Original Code is the cairo graphics library. * * The Initial Developer of the Original Code is Keith Packard * * Contributor(s): * Keith R. Packard * */ #ifndef CAIRO_WIDEINT_H #define CAIRO_WIDEINT_H #if HAVE_STDINT_H # include #elif HAVE_INTTYPES_H # include #elif HAVE_SYS_INT_TYPES_H # include #elif defined(_MSC_VER) typedef __int8 int8_t; typedef unsigned __int8 uint8_t; typedef __int16 int16_t; typedef unsigned __int16 uint16_t; typedef __int32 int32_t; typedef unsigned __int32 uint32_t; typedef __int64 int64_t; typedef unsigned __int64 uint64_t; # ifndef HAVE_UINT64_T # define HAVE_UINT64_T 1 # endif #else #error Cannot find definitions for fixed-width integral types (uint8_t, uint32_t, etc.) #endif /* * 64-bit datatypes. Two separate implementations, one using * built-in 64-bit signed/unsigned types another implemented * as a pair of 32-bit ints */ #define I cairo_private #if !HAVE_UINT64_T typedef struct _cairo_uint64 { uint32_t lo, hi; } cairo_uint64_t, cairo_int64_t; cairo_uint64_t I _cairo_uint32_to_uint64 (uint32_t i); #define _cairo_uint64_to_uint32(a) ((a).lo) cairo_uint64_t I _cairo_uint64_add (cairo_uint64_t a, cairo_uint64_t b); cairo_uint64_t I _cairo_uint64_sub (cairo_uint64_t a, cairo_uint64_t b); cairo_uint64_t I _cairo_uint64_mul (cairo_uint64_t a, cairo_uint64_t b); cairo_uint64_t I _cairo_uint32x32_64_mul (uint32_t a, uint32_t b); cairo_uint64_t I _cairo_uint64_lsl (cairo_uint64_t a, int shift); cairo_uint64_t I _cairo_uint64_rsl (cairo_uint64_t a, int shift); cairo_uint64_t I _cairo_uint64_rsa (cairo_uint64_t a, int shift); int I _cairo_uint64_lt (cairo_uint64_t a, cairo_uint64_t b); int I _cairo_uint64_eq (cairo_uint64_t a, cairo_uint64_t b); cairo_uint64_t I _cairo_uint64_negate (cairo_uint64_t a); #define _cairo_uint64_negative(a) (((int32_t) ((a).hi)) < 0) cairo_uint64_t I _cairo_uint64_not (cairo_uint64_t a); #define _cairo_uint64_to_int64(i) (i) #define _cairo_int64_to_uint64(i) (i) cairo_int64_t I _cairo_int32_to_int64(int32_t i); #define _cairo_int64_to_int32(a) ((int32_t) _cairo_uint64_to_uint32(a)) #define _cairo_int64_add(a,b) _cairo_uint64_add (a,b) #define _cairo_int64_sub(a,b) _cairo_uint64_sub (a,b) #define _cairo_int64_mul(a,b) _cairo_uint64_mul (a,b) cairo_int64_t I _cairo_int32x32_64_mul (int32_t a, int32_t b); int I _cairo_int64_lt (cairo_uint64_t a, cairo_uint64_t b); #define _cairo_int64_eq(a,b) _cairo_uint64_eq (a,b) #define _cairo_int64_lsl(a,b) _cairo_uint64_lsl (a,b) #define _cairo_int64_rsl(a,b) _cairo_uint64_rsl (a,b) #define _cairo_int64_rsa(a,b) _cairo_uint64_rsa (a,b) #define _cairo_int64_negate(a) _cairo_uint64_negate(a) #define _cairo_int64_negative(a) (((int32_t) ((a).hi)) < 0) #define _cairo_int64_not(a) _cairo_uint64_not(a) #else typedef uint64_t cairo_uint64_t; typedef int64_t cairo_int64_t; #define _cairo_uint32_to_uint64(i) ((uint64_t) (i)) #define _cairo_uint64_to_uint32(i) ((uint32_t) (i)) #define _cairo_uint64_add(a,b) ((a) + (b)) #define _cairo_uint64_sub(a,b) ((a) - (b)) #define _cairo_uint64_mul(a,b) ((a) * (b)) #define _cairo_uint32x32_64_mul(a,b) ((uint64_t) (a) * (b)) #define _cairo_uint64_lsl(a,b) ((a) << (b)) #define _cairo_uint64_rsl(a,b) ((uint64_t) (a) >> (b)) #define _cairo_uint64_rsa(a,b) ((uint64_t) ((int64_t) (a) >> (b))) #define _cairo_uint64_lt(a,b) ((a) < (b)) #define _cairo_uint64_eq(a,b) ((a) == (b)) #define _cairo_uint64_negate(a) ((uint64_t) -((int64_t) (a))) #define _cairo_uint64_negative(a) ((int64_t) (a) < 0) #define _cairo_uint64_not(a) (~(a)) #define _cairo_uint64_to_int64(i) ((int64_t) (i)) #define _cairo_int64_to_uint64(i) ((uint64_t) (i)) #define _cairo_int32_to_int64(i) ((int64_t) (i)) #define _cairo_int64_to_int32(i) ((int32_t) (i)) #define _cairo_int64_add(a,b) ((a) + (b)) #define _cairo_int64_sub(a,b) ((a) - (b)) #define _cairo_int64_mul(a,b) ((a) * (b)) #define _cairo_int32x32_64_mul(a,b) ((int64_t) (a) * (b)) #define _cairo_int64_lt(a,b) ((a) < (b)) #define _cairo_int64_eq(a,b) ((a) == (b)) #define _cairo_int64_lsl(a,b) ((a) << (b)) #define _cairo_int64_rsl(a,b) ((int64_t) ((uint64_t) (a) >> (b))) #define _cairo_int64_rsa(a,b) ((int64_t) (a) >> (b)) #define _cairo_int64_negate(a) (-(a)) #define _cairo_int64_negative(a) ((a) < 0) #define _cairo_int64_not(a) (~(a)) #endif /* * 64-bit comparisions derived from lt or eq */ #define _cairo_uint64_le(a,b) (!_cairo_uint64_gt(a,b)) #define _cairo_uint64_ne(a,b) (!_cairo_uint64_eq(a,b)) #define _cairo_uint64_ge(a,b) (!_cairo_uint64_lt(a,b)) #define _cairo_uint64_gt(a,b) _cairo_uint64_lt(b,a) #define _cairo_int64_le(a,b) (!_cairo_int64_gt(a,b)) #define _cairo_int64_ne(a,b) (!_cairo_int64_eq(a,b)) #define _cairo_int64_ge(a,b) (!_cairo_int64_lt(a,b)) #define _cairo_int64_gt(a,b) _cairo_int64_lt(b,a) /* * As the C implementation always computes both, create * a function which returns both for the 'native' type as well */ typedef struct _cairo_uquorem64 { cairo_uint64_t quo; cairo_uint64_t rem; } cairo_uquorem64_t; typedef struct _cairo_quorem64 { cairo_int64_t quo; cairo_int64_t rem; } cairo_quorem64_t; cairo_uquorem64_t I _cairo_uint64_divrem (cairo_uint64_t num, cairo_uint64_t den); cairo_quorem64_t I _cairo_int64_divrem (cairo_int64_t num, cairo_int64_t den); /* * 128-bit datatypes. Again, provide two implementations in * case the machine has a native 128-bit datatype. GCC supports int128_t * on ia64 */ #if !HAVE_UINT128_T typedef struct cairo_uint128 { cairo_uint64_t lo, hi; } cairo_uint128_t, cairo_int128_t; cairo_uint128_t I _cairo_uint32_to_uint128 (uint32_t i); cairo_uint128_t I _cairo_uint64_to_uint128 (cairo_uint64_t i); #define _cairo_uint128_to_uint64(a) ((a).lo) #define _cairo_uint128_to_uint32(a) _cairo_uint64_to_uint32(_cairo_uint128_to_uint64(a)) cairo_uint128_t I _cairo_uint128_add (cairo_uint128_t a, cairo_uint128_t b); cairo_uint128_t I _cairo_uint128_sub (cairo_uint128_t a, cairo_uint128_t b); cairo_uint128_t I _cairo_uint128_mul (cairo_uint128_t a, cairo_uint128_t b); cairo_uint128_t I _cairo_uint64x64_128_mul (cairo_uint64_t a, cairo_uint64_t b); cairo_uint128_t I _cairo_uint128_lsl (cairo_uint128_t a, int shift); cairo_uint128_t I _cairo_uint128_rsl (cairo_uint128_t a, int shift); cairo_uint128_t I _cairo_uint128_rsa (cairo_uint128_t a, int shift); int I _cairo_uint128_lt (cairo_uint128_t a, cairo_uint128_t b); int I _cairo_uint128_eq (cairo_uint128_t a, cairo_uint128_t b); cairo_uint128_t I _cairo_uint128_negate (cairo_uint128_t a); #define _cairo_uint128_negative(a) (_cairo_uint64_negative(a.hi)) cairo_uint128_t I _cairo_uint128_not (cairo_uint128_t a); #define _cairo_uint128_to_int128_(i) (i) #define _cairo_int128_to_uint128(i) (i) cairo_int128_t I _cairo_int32_to_int128 (int32_t i); cairo_int128_t I _cairo_int64_to_int128 (cairo_int64_t i); #define _cairo_int128_to_int64(a) ((cairo_int64_t) (a).lo) #define _cairo_int128_to_int32(a) _cairo_int64_to_int32(_cairo_int128_to_int64(a)) #define _cairo_int128_add(a,b) _cairo_uint128_add(a,b) #define _cairo_int128_sub(a,b) _cairo_uint128_sub(a,b) #define _cairo_int128_mul(a,b) _cairo_uint128_mul(a,b) cairo_int128_t I _cairo_int64x64_128_mul (cairo_int64_t a, cairo_int64_t b); #define _cairo_int128_lsl(a,b) _cairo_uint128_lsl(a,b) #define _cairo_int128_rsl(a,b) _cairo_uint128_rsl(a,b) #define _cairo_int128_rsa(a,b) _cairo_uint128_rsa(a,b) int I _cairo_int128_lt (cairo_int128_t a, cairo_int128_t b); #define _cairo_int128_eq(a,b) _cairo_uint128_eq (a,b) #define _cairo_int128_negate(a) _cairo_uint128_negate(a) #define _cairo_int128_negative(a) (_cairo_uint128_negative(a)) #define _cairo_int128_not(a) _cairo_uint128_not(a) #else /* !HAVE_UINT128_T */ typedef uint128_t cairo_uint128_t; typedef int128_t cairo_int128_t; #define _cairo_uint32_to_uint128(i) ((uint128_t) (i)) #define _cairo_uint64_to_uint128(i) ((uint128_t) (i)) #define _cairo_uint128_to_uint64(i) ((uint64_t) (i)) #define _cairo_uint128_to_uint32(i) ((uint32_t) (i)) #define _cairo_uint128_add(a,b) ((a) + (b)) #define _cairo_uint128_sub(a,b) ((a) - (b)) #define _cairo_uint128_mul(a,b) ((a) * (b)) #define _cairo_uint64x64_128_mul(a,b) ((uint128_t) (a) * (b)) #define _cairo_uint128_lsl(a,b) ((a) << (b)) #define _cairo_uint128_rsl(a,b) ((uint128_t) (a) >> (b)) #define _cairo_uint128_rsa(a,b) ((uint128_t) ((int128_t) (a) >> (b))) #define _cairo_uint128_lt(a,b) ((a) < (b)) #define _cairo_uint128_eq(a,b) ((a) == (b)) #define _cairo_uint128_negate(a) ((uint128_t) -((int128_t) (a))) #define _cairo_uint128_negative(a) ((int128_t) (a) < 0) #define _cairo_uint128_not(a) (~(a)) #define _cairo_uint128_to_int128(i) ((int128_t) (i)) #define _cairo_int128_to_uint128(i) ((uint128_t) (i)) #define _cairo_int32_to_int128(i) ((int128_t) (i)) #define _cairo_int64_to_int128(i) ((int128_t) (i)) #define _cairo_int128_to_int64(i) ((int64_t) (i)) #define _cairo_int128_to_int32(i) ((int32_t) (i)) #define _cairo_int128_add(a,b) ((a) + (b)) #define _cairo_int128_sub(a,b) ((a) - (b)) #define _cairo_int128_mul(a,b) ((a) * (b)) #define _cairo_int64x64_128_mul(a,b) ((int128_t) (a) * (b)) #define _cairo_int128_lt(a,b) ((a) < (b)) #define _cairo_int128_eq(a,b) ((a) == (b)) #define _cairo_int128_lsl(a,b) ((a) << (b)) #define _cairo_int128_rsl(a,b) ((int128_t) ((uint128_t) (a) >> (b))) #define _cairo_int128_rsa(a,b) ((int128_t) (a) >> (b)) #define _cairo_int128_negate(a) (-(a)) #define _cairo_int128_negative(a) ((a) < 0) #define _cairo_int128_not(a) (~(a)) #endif /* HAVE_UINT128_T */ typedef struct _cairo_uquorem128 { cairo_uint128_t quo; cairo_uint128_t rem; } cairo_uquorem128_t; typedef struct _cairo_quorem128 { cairo_int128_t quo; cairo_int128_t rem; } cairo_quorem128_t; cairo_uquorem128_t I _cairo_uint128_divrem (cairo_uint128_t num, cairo_uint128_t den); cairo_quorem128_t I _cairo_int128_divrem (cairo_int128_t num, cairo_int128_t den); #define _cairo_uint128_le(a,b) (!_cairo_uint128_gt(a,b)) #define _cairo_uint128_ne(a,b) (!_cairo_uint128_eq(a,b)) #define _cairo_uint128_ge(a,b) (!_cairo_uint128_lt(a,b)) #define _cairo_uint128_gt(a,b) _cairo_uint128_lt(b,a) #define _cairo_int128_le(a,b) (!_cairo_int128_gt(a,b)) #define _cairo_int128_ne(a,b) (!_cairo_int128_eq(a,b)) #define _cairo_int128_ge(a,b) (!_cairo_int128_lt(a,b)) #define _cairo_int128_gt(a,b) _cairo_int128_lt(b,a) #undef I #endif /* CAIRO_WIDEINT_H */