If a driver can use hardware to handle the crtc transform, then
there's no need for the server's shadow layer to do it. Add a crtc
flag that lets the driver indicate that it is handling the transform.
If it's set, consider the transformed size of the screen but don't
actually enable the shadow layer. Also stop adjusting the cursor
image and position.
Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
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