1 /* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ 2 /* Cairo - a vector graphics library with display and print output 3 * 4 * Copyright © 2007 Mozilla Corporation 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it either under the terms of the GNU Lesser General Public 8 * License version 2.1 as published by the Free Software Foundation 9 * (the "LGPL") or, at your option, under the terms of the Mozilla 10 * Public License Version 1.1 (the "MPL"). If you do not alter this 11 * notice, a recipient may use your version of this file under either 12 * the MPL or the LGPL. 13 * 14 * You should have received a copy of the LGPL along with this library 15 * in the file COPYING-LGPL-2.1; if not, write to the Free Software 16 * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA 17 * You should have received a copy of the MPL along with this library 18 * in the file COPYING-MPL-1.1 19 * 20 * The contents of this file are subject to the Mozilla Public License 21 * Version 1.1 (the "License"); you may not use this file except in 22 * compliance with the License. You may obtain a copy of the License at 23 * http://www.mozilla.org/MPL/ 24 * 25 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY 26 * OF ANY KIND, either express or implied. See the LGPL or the MPL for 27 * the specific language governing rights and limitations. 28 * 29 * The Original Code is the cairo graphics library. 30 * 31 * The Initial Developer of the Original Code is Mozilla Foundation 32 * 33 * Contributor(s): 34 * Vladimir Vukicevic <vladimir@pobox.com> 35 */ 36 37 #ifndef CAIRO_FIXED_TYPE_PRIVATE_H 38 #define CAIRO_FIXED_TYPE_PRIVATE_H 39 40 #include "cairo-wideint-type-private.h" 41 42 /* 43 * Fixed-point configuration 44 */ 45 46 typedef int32_t cairo_fixed_16_16_t; 47 typedef cairo_int64_t cairo_fixed_32_32_t; 48 typedef cairo_int64_t cairo_fixed_48_16_t; 49 typedef cairo_int128_t cairo_fixed_64_64_t; 50 typedef cairo_int128_t cairo_fixed_96_32_t; 51 52 /* Eventually, we should allow changing this, but I think 53 * there are some assumptions in the tesselator about the 54 * size of a fixed type. For now, it must be 32. 55 */ 56 #define CAIRO_FIXED_BITS 32 57 58 /* The number of fractional bits. Changing this involves 59 * making sure that you compute a double-to-fixed magic number. 60 * (see below). 61 */ 62 #define CAIRO_FIXED_FRAC_BITS 8 63 64 /* A signed type %CAIRO_FIXED_BITS in size; the main fixed point type */ 65 typedef int32_t cairo_fixed_t; 66 67 /* An unsigned type of the same size as #cairo_fixed_t */ 68 typedef uint32_t cairo_fixed_unsigned_t; 69 70 typedef struct _cairo_point { 71 cairo_fixed_t x; 72 cairo_fixed_t y; 73 } cairo_point_t; 74 75 #endif /* CAIRO_FIXED_TYPE_PRIVATE_H */ 76