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