Provided by: allegro5-doc_5.0.11-2_all 

NAME
ALLEGRO_TRANSFORM - Allegro 5 API
SYNOPSIS
#include <allegro5/allegro.h>
typedef struct ALLEGRO_TRANSFORM ALLEGRO_TRANSFORM;
DESCRIPTION
Defines the generic transformation type, a 4x4 matrix. 2D transforms use only a small subsection of this
matrix, namely the top left 2x2 matrix, and the right most 2x1 matrix, for a total of 6 values.
Fields:
• m - A 4x4 float matrix
ALLEGRO_TRANSFORM(3alleg5) Allegro reference manual()