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Diffstat (limited to 'components/gui/include/rtgui/matrix.h')
| -rw-r--r-- | components/gui/include/rtgui/matrix.h | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/components/gui/include/rtgui/matrix.h b/components/gui/include/rtgui/matrix.h deleted file mode 100644 index 5d83c4ae85..0000000000 --- a/components/gui/include/rtgui/matrix.h +++ /dev/null @@ -1,186 +0,0 @@ -/* - * File : matrix.h - * This file is part of RT-Thread GUI Engine - * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Change Logs: - * Date Author Notes - * 2010-04-10 Grissiom The first version - */ - -#ifndef __MATRIX_H__ -#define __MATRIX_H__ - -/* Port from ejoy2d: https://github.com/cloudwu/ejoy2d/blob/master/LICENSE - * Original License: - * - * The MIT License (MIT) - * - * Copyright (c) 2013 Ejoy.com Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a copy of - * this software and associated documentation files (the "Software"), to deal in - * the Software without restriction, including without limitation the rights to - * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of - * the Software, and to permit persons to whom the Software is furnished to do so, - * subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS - * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR - * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER - * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/* Port to RTGUI and modified by Grissiom */ - -#ifdef _MSC_VER -typedef __int32 int32_t; -typedef unsigned __int32 uint32_t; -typedef __int64 int64_t; -typedef unsigned __int64 uint64_t; -#else -#include <stdint.h> -#endif - -#define RTGUI_MATRIX_FRAC_BITS 11 -#define RTGUI_MATRIX_FRAC (1 << RTGUI_MATRIX_FRAC_BITS) - -struct rtgui_matrix -{ - /* The matrix format is : - * - * | m[0] m[1] 0 | - * | m[2] m[3] 0 | - * | m[4] m[5] 1 | - * - * The format of the coordinate of a point is: - * - * | x y 1 | - * - * So, if you want to transform a point p with a matrix m, do: - * - * p * m - * - * Note: m[0-3] is in fix presentation that has 10 bits decimal - * fraction(m/RTGUI_MATRIX_FRAC). While the unit of m[4-5] is pixel. - * - */ - int m[6]; -}; - -rt_inline int32_t _rtgui_matrix_round_div32(int32_t n, int32_t d) -{ - if (n == 0) - return 0; - - if (d < 0) - { - d = -d; - n = -n; - } - if (n > 0) - return (n + d / 2) / d; - else - return (n - d / 2) / d; -} - -rt_inline int32_t _rtgui_matrix_round_div6432(int64_t n, int32_t d) -{ - if (n == 0) - return 0; - - if (d < 0) - { - d = -d; - n = -n; - } - if (n > 0) - return (n + d / 2) / d; - else - return (n - d / 2) / d; -} - -/* mm = mm1 * mm2 */ -rt_inline void rtgui_matrix_mul(struct rtgui_matrix *mm, - const struct rtgui_matrix *mm1, - const struct rtgui_matrix *mm2) -{ - int *m = mm->m; - const int *m1 = mm1->m; - const int *m2 = mm2->m; - - m[0] = _rtgui_matrix_round_div32(m1[0] * m2[0] + m1[1] * m2[2], RTGUI_MATRIX_FRAC); - m[1] = _rtgui_matrix_round_div32(m1[0] * m2[1] + m1[1] * m2[3], RTGUI_MATRIX_FRAC); - m[2] = _rtgui_matrix_round_div32(m1[2] * m2[0] + m1[3] * m2[2], RTGUI_MATRIX_FRAC); - m[3] = _rtgui_matrix_round_div32(m1[2] * m2[1] + m1[3] * m2[3], RTGUI_MATRIX_FRAC); - m[4] = _rtgui_matrix_round_div32(m1[4] * m2[0] + m1[5] * m2[2], RTGUI_MATRIX_FRAC) + m2[4]; - m[5] = _rtgui_matrix_round_div32(m1[4] * m2[1] + m1[5] * m2[3], RTGUI_MATRIX_FRAC) + m2[5]; -} - -/* Matrix multiply point[(p) = (x, y) * m], ignore the movement components. */ -rt_inline void rtgui_matrix_mul_point_nomove(struct rtgui_point *p, - int x, int y, - struct rtgui_matrix *m) -{ - int *mm = m->m; - - p->x = _rtgui_matrix_round_div32(x * mm[0] + y * mm[2], RTGUI_MATRIX_FRAC); - p->y = _rtgui_matrix_round_div32(x * mm[1] + y * mm[3], RTGUI_MATRIX_FRAC); -} - -/* Matrix multiply point[(p) = (x, y) * m]. */ -rt_inline void rtgui_matrix_mul_point(struct rtgui_point *p, - int x, int y, - struct rtgui_matrix *m) -{ - int *mm = m->m; - - p->x = _rtgui_matrix_round_div32(x * mm[0] + y * mm[2], RTGUI_MATRIX_FRAC) + mm[4]; - p->y = _rtgui_matrix_round_div32(x * mm[1] + y * mm[3], RTGUI_MATRIX_FRAC) + mm[5]; -} - -/** Set @mm to an identity matrix. */ -rt_inline void rtgu_matrix_identity(struct rtgui_matrix *mm) -{ - int *mat = mm->m; - mat[0] = RTGUI_MATRIX_FRAC; - mat[1] = 0; - mat[2] = 0; - mat[3] = RTGUI_MATRIX_FRAC; - mat[4] = 0; - mat[5] = 0; -} - -/** Save the inversed matrix of @mm to @mo. - * - * @return If the matrix is not inversale, return 1. Otherwise, return 0. */ -int rtgui_matrix_inverse(const struct rtgui_matrix *mm, struct rtgui_matrix *mo); - -/** @degree range from 0 ~ 512. */ -void rtgui_matrix_rotate(struct rtgui_matrix *m, int degree); -/** The unit is fixed point number. RTGUI_MATRIX_FRAC means 1.0. */ -void rtgui_matrix_scale(struct rtgui_matrix *m, int sx, int sy); -/** The unit is pixel. Not the fixed point number. */ -void rtgui_matrix_move(struct rtgui_matrix *m, int dx, int dy); - -#endif /* end of include guard: __MATRIX_H__ */ - |