DOKK / manpages / debian 10 / allegro4-doc / qscale_matrix_f.3alleg4.en
qscale_matrix(3alleg4) Allegro manual qscale_matrix(3alleg4)

qscale_matrix, qscale_matrix_f - Optimised routine for scaling an already generated matrix. Allegro game programming library.

#include <allegro.h>

void qscale_matrix(MATRIX *m, fixed scale);

void qscale_matrix_f(MATRIX_f *m, float scale);

Optimised routine for scaling an already generated matrix: this simply adds in the scale factor, so there is no need to build two temporary matrices and then multiply them together.

get_scaling_matrix(3alleg4)

version 4.4.2 Allegro