/usr/include/allegro/matrix.h is in liballegro4-dev 2:4.4.2-10.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* \/_/\/_/\/____/\/____/\/____/\/___L\ \/_/ \/___/
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*
* Matrix math routines.
*
* By Shawn Hargreaves.
*
* See readme.txt for copyright information.
*/
#ifndef ALLEGRO_MATRIX_H
#define ALLEGRO_MATRIX_H
#include "base.h"
#include "fixed.h"
#include "fmaths.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct MATRIX /* transformation matrix (fixed point) */
{
fixed v[3][3]; /* scaling and rotation */
fixed t[3]; /* translation */
} MATRIX;
typedef struct MATRIX_f /* transformation matrix (floating point) */
{
float v[3][3]; /* scaling and rotation */
float t[3]; /* translation */
} MATRIX_f;
AL_VAR(MATRIX, identity_matrix);
AL_VAR(MATRIX_f, identity_matrix_f);
AL_FUNC(void, get_translation_matrix, (MATRIX *m, fixed x, fixed y, fixed z));
AL_FUNC(void, get_translation_matrix_f, (MATRIX_f *m, float x, float y, float z));
AL_FUNC(void, get_scaling_matrix, (MATRIX *m, fixed x, fixed y, fixed z));
AL_FUNC(void, get_scaling_matrix_f, (MATRIX_f *m, float x, float y, float z));
AL_FUNC(void, get_x_rotate_matrix, (MATRIX *m, fixed r));
AL_FUNC(void, get_x_rotate_matrix_f, (MATRIX_f *m, float r));
AL_FUNC(void, get_y_rotate_matrix, (MATRIX *m, fixed r));
AL_FUNC(void, get_y_rotate_matrix_f, (MATRIX_f *m, float r));
AL_FUNC(void, get_z_rotate_matrix, (MATRIX *m, fixed r));
AL_FUNC(void, get_z_rotate_matrix_f, (MATRIX_f *m, float r));
AL_FUNC(void, get_rotation_matrix, (MATRIX *m, fixed x, fixed y, fixed z));
AL_FUNC(void, get_rotation_matrix_f, (MATRIX_f *m, float x, float y, float z));
AL_FUNC(void, get_align_matrix, (MATRIX *m, fixed xfront, fixed yfront, fixed zfront, fixed xup, fixed yup, fixed zup));
AL_FUNC(void, get_align_matrix_f, (MATRIX_f *m, float xfront, float yfront, float zfront, float xup, float yup, float zup));
AL_FUNC(void, get_vector_rotation_matrix, (MATRIX *m, fixed x, fixed y, fixed z, fixed a));
AL_FUNC(void, get_vector_rotation_matrix_f, (MATRIX_f *m, float x, float y, float z, float a));
AL_FUNC(void, get_transformation_matrix, (MATRIX *m, fixed scale, fixed xrot, fixed yrot, fixed zrot, fixed x, fixed y, fixed z));
AL_FUNC(void, get_transformation_matrix_f, (MATRIX_f *m, float scale, float xrot, float yrot, float zrot, float x, float y, float z));
AL_FUNC(void, get_camera_matrix, (MATRIX *m, fixed x, fixed y, fixed z, fixed xfront, fixed yfront, fixed zfront, fixed xup, fixed yup, fixed zup, fixed fov, fixed aspect));
AL_FUNC(void, get_camera_matrix_f, (MATRIX_f *m, float x, float y, float z, float xfront, float yfront, float zfront, float xup, float yup, float zup, float fov, float aspect));
AL_FUNC(void, qtranslate_matrix, (MATRIX *m, fixed x, fixed y, fixed z));
AL_FUNC(void, qtranslate_matrix_f, (MATRIX_f *m, float x, float y, float z));
AL_FUNC(void, qscale_matrix, (MATRIX *m, fixed scale));
AL_FUNC(void, qscale_matrix_f, (MATRIX_f *m, float scale));
AL_FUNC(void, matrix_mul, (AL_CONST MATRIX *m1, AL_CONST MATRIX *m2, MATRIX *out));
AL_FUNC(void, matrix_mul_f, (AL_CONST MATRIX_f *m1, AL_CONST MATRIX_f *m2, MATRIX_f *out));
AL_FUNC(void, apply_matrix_f, (AL_CONST MATRIX_f *m, float x, float y, float z, float *xout, float *yout, float *zout));
#ifdef __cplusplus
}
#endif
#include "inline/matrix.inl"
#endif /* ifndef ALLEGRO_MATRIX_H */
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