[cairo] Screen orientation

[Jean-Claude Repetto]

Behdad Esfahbod wrote :
> On Mon, 2007-12-10 at 08:32 -0500, Jean-Claude Repetto wrote:
> 
>> I am using Cairo in a handheld device with a LCD screen. The device has 
>> a frame buffer, so I am using Cairo image surfaces to draw directly into 
>> the frame buffer.
>> Unfortunately, some of the devices have been manufactured with a LCD 
>> screen rotated of 90 degrees. I have tried to use a Cairo transformation 
>> matrix. It works, but it is much slower.
> 
> May it be the case that you are rotating around a pixel center instead
> of origin?  I doubt that myself.

I am using :
	cairo_rotate (cr, M_PI/2);
	cairo_translate (cr, 0, -screen_width);

> 
> Have fun with cairo!

Thanks !

Jean-Claude