1544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin/************************************************************************** 2544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * 3544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * Copyright 2009 VMware, Inc. All Rights Reserved. 4544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * 5544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * Permission is hereby granted, free of charge, to any person obtaining a 6544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * copy of this software and associated documentation files (the 7544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * "Software"), to deal in the Software without restriction, including 8544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * without limitation the rights to use, copy, modify, merge, publish, 9544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * distribute, sub license, and/or sell copies of the Software, and to 10544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * permit persons to whom the Software is furnished to do so, subject to 11544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * the following conditions: 12544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * 13544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * The above copyright notice and this permission notice (including the 14544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * next paragraph) shall be included in all copies or substantial portions 15544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * of the Software. 16544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * 17544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 20544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 21544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 22544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 23544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin * 25544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin **************************************************************************/ 26544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin 27544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin#ifndef ARC_H 28544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin#define ARC_H 29544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin 30544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin#include "VG/openvg.h" 31544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin 32544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusinstruct polygon; 33544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusinstruct matrix; 34544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusinstruct stroker; 35544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusinstruct path; 36544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin 37544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusinstruct arc { 38544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin VGPathSegment type; 39544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin 40544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin VGfloat cx, cy; 41544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin 42544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin VGfloat a, b; 43544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin 44544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin VGfloat theta; 45544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin VGfloat cos_theta, sin_theta; 46544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin 47544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin VGfloat eta1; 48544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin VGfloat eta2; 49544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin 50544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin VGfloat x1, y1, x2, y2; 51544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin 52544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin VGboolean is_valid; 53544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin}; 54544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin 55544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusinvoid arc_init(struct arc *arc, 56544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin VGPathSegment type, 57544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin VGfloat x1, VGfloat y1, 58544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin VGfloat x2, VGfloat y2, 59544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin VGfloat rh, VGfloat rv, 60544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin VGfloat rot); 61544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin 62544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusinvoid arc_add_to_polygon(struct arc *arc, 63544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin struct polygon *poly, 64544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin struct matrix *matrix); 65544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin 66544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin 67544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusinvoid arc_to_path(struct arc *arc, 68544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin struct path *p, 69544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin struct matrix *matrix); 70544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin 71544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusinvoid arc_stroke_cb(struct arc *arc, 72544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin struct stroker *stroke, 73544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin struct matrix *matrix); 74544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin 75544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusinvoid arc_stroker_emit(struct arc *arc, 76544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin struct stroker *stroke, 77544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin struct matrix *matrix); 78544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin 79544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin 80544dd4b11f7be76bb00fe29a60eaf2772dcc69caZack Rusin#endif 81