display::scoped_ortho::scoped_ortho(display & parent)
: parent(parent)
{
parent.bind();
glMatrixMode(GL_PROJECTION);
glPushMatrix(); CHECK_GL_ERRORS();
glLoadIdentity(); CHECK_GL_ERRORS();
glOrtho(0, static_cast<float>(parent.get_width()), 0, static_cast<float>(parent.get_height()), -1, 1);
} // display::scoped_orth::scoped_orth()
display::scoped_viewport::scoped_viewport(display & parent)
: parent(parent)
{
parent.bind();
glViewport(0, 0, parent.get_width(), parent.get_height());
} // display::scoped_viewport::scoped_viewport()