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/*
* 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 */
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