matrix_mul, matrix_mul_f - Multiplies two matrices. Allegro game programming
library.
#include <allegro.h>
void matrix_mul(const MATRIX *m1, const MATRIX *m2, MATRIX
*out);
void matrix_mul_f(const MATRIX_f *m1, const MATRIX_f *m2,
MATRIX_f *out);
Multiplies two matrices, storing the result in out (this may be a duplicate of
one of the input matrices, but it is faster when the inputs and output are all
different). The resulting matrix will have the same effect as the combination
of m1 and m2, ie. when applied to a point p, (p * out) = ((p * m1) * m2). Any
number of transformations can be concatenated in this way. Note that matrix
multiplication is not commutative, ie. matrix_mul(m1, m2) != matrix_mul(m2,
m1).
apply_matrix(3), exquat(3), exscn3d(3)