You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 

72 lines
2.2 KiB

/*
* Copyright © 2008-2011 Kristian Høgsberg
* Copyright © 2012 Collabora, Ltd.
*
* 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 (including the
* next paragraph) 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.
*/
#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 __cplusplus
}
#endif
#endif /* WESTON_MATRIX_H */