1fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul/************************************************************************** 2fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * 3fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. 4fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * All Rights Reserved. 5fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * 6fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * Permission is hereby granted, free of charge, to any person obtaining a 7fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * copy of this software and associated documentation files (the 8fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * "Software"), to deal in the Software without restriction, including 9fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * without limitation the rights to use, copy, modify, merge, publish, 10fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * distribute, sub license, and/or sell copies of the Software, and to 11fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * permit persons to whom the Software is furnished to do so, subject to 12fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * the following conditions: 13fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * 14fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * The above copyright notice and this permission notice (including the 15fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * next paragraph) shall be included in all copies or substantial portions 16fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * of the Software. 17fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * 18fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul * 26fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul **************************************************************************/ 27fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul 28fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul 294cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell#ifndef U_RECT_H 304cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell#define U_RECT_H 314cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell 324cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell#include "pipe/p_compiler.h" 334cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell 344cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwellstruct u_rect { 354cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell int x0, x1; 364cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell int y0, y1; 374cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell}; 384cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell 394cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell/* Do two rectangles intersect? 40fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul */ 414cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwellstatic INLINE boolean 424cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwellu_rect_test_intersection(const struct u_rect *a, 434cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell const struct u_rect *b) 444cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell{ 454cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell return (!(a->x1 < b->x0 || 464cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell b->x1 < a->x0 || 474cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell a->y1 < b->y0 || 484cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell b->y1 < a->y0)); 494cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell} 50fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul 514cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell/* Find the intersection of two rectangles known to intersect. 524cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell */ 534cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwellstatic INLINE void 544cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwellu_rect_find_intersection(const struct u_rect *a, 554cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell struct u_rect *b) 564cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell{ 574cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell /* Caller should verify intersection exists before calling. 584cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell */ 594cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell if (b->x0 < a->x0) b->x0 = a->x0; 604cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell if (b->x1 > a->x1) b->x1 = a->x1; 614cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell if (b->y0 < a->y0) b->y0 = a->y0; 624cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell if (b->y1 > a->y1) b->y1 = a->y1; 634cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell} 64fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul 65fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul 664cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwellstatic INLINE void 674cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwellu_rect_possible_intersection(const struct u_rect *a, 684cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell struct u_rect *b) 694cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell{ 704cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell if (u_rect_test_intersection(a,b)) { 714cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell u_rect_find_intersection(a,b); 724cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell } 734cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell else { 744cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell b->x0 = b->x1 = b->y0 = b->y1 = 0; 754cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell } 764cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell} 77fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul 78fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul#include "pipe/p_format.h" 79c2f074d8a4b93f3f3a81311f9a114b11bc5f80d8Roland Scheidegger#include "util/u_pack_color.h" 80fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul 81fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul 824cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell 834cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell/********************************************************************** 844cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell * Pipe copy/fill rect helpers. 854cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell */ 864cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell 874cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell/* These really should move to a different file: 884cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell */ 894cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell#include "pipe/p_format.h" 904cef3087261317f04e4a06cc645c895d31f6e06bKeith Whitwell 91fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paulextern void 92ac400ffce62be47fc77e8d10cabcd39b92b6c627Roland Scheideggerutil_copy_rect(ubyte * dst, enum pipe_format format, 93fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul unsigned dst_stride, unsigned dst_x, unsigned dst_y, 94fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul unsigned width, unsigned height, const ubyte * src, 95f39bae8e68bf461a424bf33112ea79aee3044615Brian Paul int src_stride, unsigned src_x, unsigned src_y); 96fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul 97fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paulextern void 98ac400ffce62be47fc77e8d10cabcd39b92b6c627Roland Scheideggerutil_fill_rect(ubyte * dst, enum pipe_format format, 99fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul unsigned dst_stride, unsigned dst_x, unsigned dst_y, 100c2f074d8a4b93f3f3a81311f9a114b11bc5f80d8Roland Scheidegger unsigned width, unsigned height, union util_color *uc); 101fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul 102fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul 103fe1e39afbb147deab60ecc932c24f921b46f1364Brian Paul#endif /* U_RECT_H */ 104