When the driver can handle the crtc transform in hardware, it sets
crtc->driverIsPerformingTransform, which turns off both the shadow
layer and the cursor's position-transforming code. However, some
drivers actually do require the cursor position to still be
transformed in these cases. Move the cursor position transform into a
helper function that can be called by such drivers.
Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
57cd32e934