2 * Copyright © 2008-2011 Kristian Høgsberg
3 * Copyright © 2012 Collabora, Ltd.
5 * Permission to use, copy, modify, distribute, and sell this software and
6 * its documentation for any purpose is hereby granted without fee, provided
7 * that the above copyright notice appear in all copies and that both that
8 * copyright notice and this permission notice appear in supporting
9 * documentation, and that the name of the copyright holders not be used in
10 * advertising or publicity pertaining to distribution of the software
11 * without specific, written prior permission. The copyright holders make
12 * no representations about the suitability of this software for any
13 * purpose. It is provided "as is" without express or implied warranty.
15 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
16 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
17 * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
18 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
19 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
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24 #ifndef WESTON_MATRIX_H
25 #define WESTON_MATRIX_H
31 enum weston_matrix_transform_type {
32 WESTON_MATRIX_TRANSFORM_TRANSLATE = (1 << 0),
33 WESTON_MATRIX_TRANSFORM_SCALE = (1 << 1),
34 WESTON_MATRIX_TRANSFORM_ROTATE = (1 << 2),
35 WESTON_MATRIX_TRANSFORM_OTHER = (1 << 3),
38 struct weston_matrix {
43 struct weston_vector {
48 weston_matrix_init(struct weston_matrix *matrix);
50 weston_matrix_multiply(struct weston_matrix *m, const struct weston_matrix *n);
52 weston_matrix_scale(struct weston_matrix *matrix, float x, float y, float z);
54 weston_matrix_translate(struct weston_matrix *matrix,
55 float x, float y, float z);
57 weston_matrix_rotate_xy(struct weston_matrix *matrix, float cos, float sin);
59 weston_matrix_transform(struct weston_matrix *matrix, struct weston_vector *v);
62 weston_matrix_invert(struct weston_matrix *inverse,
63 const struct weston_matrix *matrix);
66 # define MATRIX_TEST_EXPORT WL_EXPORT
69 matrix_invert(double *A, unsigned *p, const struct weston_matrix *matrix);
72 inverse_transform(const double *LU, const unsigned *p, float *v);
75 # define MATRIX_TEST_EXPORT static
82 #endif /* WESTON_MATRIX_H */