gb_mat4_mul_vec4 is broken about gb HOT 2 CLOSED

void gb_float44_mul_vec4_fixed(gbVec4 *out, float m[4][4], gbVec4 v)
{
    out->x = m[0][0]*v.x + m[1][0]*v.y + m[2][0]*v.z + m[3][0]*v.w;
    out->y = m[0][1]*v.x + m[1][1]*v.y + m[2][1]*v.z + m[3][1]*v.w;
    out->z = m[0][2]*v.x + m[1][2]*v.y + m[2][2]*v.z + m[3][2]*v.w;
    out->w = m[0][3]*v.x + m[1][3]*v.y + m[2][3]*v.z + m[3][3]*v.w;
}