83 lines
2.5 KiB
C
83 lines
2.5 KiB
C
/*
|
|
* Copyright © 2008-2011 Kristian Høgsberg
|
|
* Copyright © 2012 Collabora, Ltd.
|
|
*
|
|
* Permission to use, copy, modify, distribute, and sell this software and
|
|
* its documentation for any purpose is hereby granted without fee, provided
|
|
* that the above copyright notice appear in all copies and that both that
|
|
* copyright notice and this permission notice appear in supporting
|
|
* documentation, and that the name of the copyright holders not be used in
|
|
* advertising or publicity pertaining to distribution of the software
|
|
* without specific, written prior permission. The copyright holders make
|
|
* no representations about the suitability of this software for any
|
|
* purpose. It is provided "as is" without express or implied warranty.
|
|
*
|
|
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
|
|
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
|
|
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
|
|
* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
|
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#ifndef WESTON_MATRIX_H
|
|
#define WESTON_MATRIX_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
enum weston_matrix_transform_type {
|
|
WESTON_MATRIX_TRANSFORM_TRANSLATE = (1 << 0),
|
|
WESTON_MATRIX_TRANSFORM_SCALE = (1 << 1),
|
|
WESTON_MATRIX_TRANSFORM_ROTATE = (1 << 2),
|
|
WESTON_MATRIX_TRANSFORM_OTHER = (1 << 3),
|
|
};
|
|
|
|
struct weston_matrix {
|
|
float d[16];
|
|
unsigned int type;
|
|
};
|
|
|
|
struct weston_vector {
|
|
float f[4];
|
|
};
|
|
|
|
void
|
|
weston_matrix_init(struct weston_matrix *matrix);
|
|
void
|
|
weston_matrix_multiply(struct weston_matrix *m, const struct weston_matrix *n);
|
|
void
|
|
weston_matrix_scale(struct weston_matrix *matrix, float x, float y, float z);
|
|
void
|
|
weston_matrix_translate(struct weston_matrix *matrix,
|
|
float x, float y, float z);
|
|
void
|
|
weston_matrix_rotate_xy(struct weston_matrix *matrix, float cos, float sin);
|
|
void
|
|
weston_matrix_transform(struct weston_matrix *matrix, struct weston_vector *v);
|
|
|
|
int
|
|
weston_matrix_invert(struct weston_matrix *inverse,
|
|
const struct weston_matrix *matrix);
|
|
|
|
#ifdef UNIT_TEST
|
|
# define MATRIX_TEST_EXPORT WL_EXPORT
|
|
|
|
int
|
|
matrix_invert(double *A, unsigned *p, const struct weston_matrix *matrix);
|
|
|
|
void
|
|
inverse_transform(const double *LU, const unsigned *p, float *v);
|
|
|
|
#else
|
|
# define MATRIX_TEST_EXPORT static
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* WESTON_MATRIX_H */
|