[PATCH 4/4] drm/i915: Implement proper clipping for video sprites

2013-02-21 Thread ville.syrj...@linux.intel.com
From: Ville Syrj?l? Properly clip the source when the destination gets clipped by the pipe dimensions. Sadly the video sprite hardware is rather limited so it can't do proper sub-pixel postitioning. Resort to truncating the source coordinates to (macro)pixel boundary. The scaling checks are don

[PATCH 4/4] drm/i915: Implement proper clipping for video sprites

2013-02-21 Thread ville . syrjala
From: Ville Syrjälä Properly clip the source when the destination gets clipped by the pipe dimensions. Sadly the video sprite hardware is rather limited so it can't do proper sub-pixel postitioning. Resort to truncating the source coordinates to (macro)pixel boundary. The scaling checks are don