nanogui: Thread: GrSetPortraitMode() DOWN mode is not right

When calling GrSetPortraitMode(MWPORTRAIT_DOWN) the video is flipped and not 
rotated.  What this means is that any text you were originally displaying is 
intelligible.  Is there any fixes for this "feature" or workarounds?

Incidentally, all the other portrait modes (x_LEFT, x_RIGHT, x_NONE) work 
great.  It is just the DOWN that is goofy.

Here is the small example program that demonstrates this problem:

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#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/Fl_Button.H>

#include <include/nano-X.h>

Fl_Window *window; 
int current_mode=MWPORTRAIT_NONE;

void button_callback(Fl_Widget *widget, void *data)
{
	switch(current_mode)
	{
		case MWPORTRAIT_NONE:
			current_mode=MWPORTRAIT_LEFT;
			break;

		case MWPORTRAIT_LEFT:
			current_mode=MWPORTRAIT_RIGHT;
			break;

		case MWPORTRAIT_RIGHT:
			current_mode=MWPORTRAIT_DOWN;
			break;

		case MWPORTRAIT_DOWN:
			current_mode=MWPORTRAIT_NONE;
			break;
	}

	GrSetPortraitMode(current_mode);
	window->redraw();
}

int main(int argc, char **argv)
{

	current_mode = 0;

	window = new Fl_Window(150,200);
	Fl_Button *button = new Fl_Button(10,10,140,190,"Touch me\n to change\n 
orientation");
	button->callback(button_callback);
	button->labelsize(24);
	button->labelfont(FL_BOLD+FL_ITALIC);
	button->labeltype(FL_SHADOW_LABEL);

	window->end();
	window->show(argc, argv);
	return Fl::run();
}
-- 
====================================================
Jeff Angielski                          703.405.6896
Principal Engineer              ####@####.####
www.ThePTRGroup.com    Embedded, Real-Time Solutions
====================================================