1 /************************************************************************** 2 * 3 * Copyright 2009 VMware, Inc. All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the 7 * "Software"), to deal in the Software without restriction, including 8 * without limitation the rights to use, copy, modify, merge, publish, 9 * distribute, sub license, and/or sell copies of the Software, and to 10 * permit persons to whom the Software is furnished to do so, subject to 11 * the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the 14 * next paragraph) shall be included in all copies or substantial portions 15 * of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 * 25 **************************************************************************/ 26 27 #ifndef POLYGON_H 28 #define POLYGON_H 29 30 #include "VG/openvg.h" 31 32 struct polygon; 33 struct vg_context; 34 struct vg_paint; 35 struct array; 36 37 struct polygon *polygon_create(int size); 38 struct polygon *polygon_create_from_data(float *data, int size); 39 void polygon_destroy(struct polygon *poly); 40 41 void polygon_resize(struct polygon *poly, int new_size); 42 int polygon_size(struct polygon *poly); 43 44 int polygon_vertex_count(struct polygon *poly); 45 float * polygon_data(struct polygon *poly); 46 47 void polygon_vertex_append(struct polygon *p, 48 float x, float y); 49 void polygon_append_polygon(struct polygon *dst, 50 struct polygon *src); 51 void polygon_set_vertex(struct polygon *p, int idx, 52 float x, float y); 53 void polygon_vertex(struct polygon *p, int idx, 54 float *vertex); 55 56 void polygon_bounding_rect(struct polygon *p, 57 float *rect); 58 int polygon_contains_point(struct polygon *p, 59 float x, float y); 60 61 VGboolean polygon_is_closed(struct polygon *p); 62 63 void polygon_fill(struct polygon *p, struct vg_context *pipe); 64 65 /* TODO: make a file/module around this struct 66 */ 67 struct polygon_array { 68 struct array *array; 69 VGfloat min_x, max_x; 70 VGfloat min_y, max_y; 71 }; 72 73 void polygon_array_fill(struct polygon_array *polyarray, struct vg_context *ctx); 74 75 #endif 76