1. 06 Dec, 2011 39 commits
  2. 01 Dec, 2011 1 commit
    • Ville Syrjälä's avatar
      drm: Redefine pixel formats · 04b3924d
      Ville Syrjälä authored
      Name the formats as DRM_FORMAT_X instead of DRM_FOURCC_X. Use consistent
      names, especially for the RGB formats. Component order and byte order are
      now strictly specified for each format.
      
      The RGB format naming follows a convention where the components names
      and sizes are listed from left to right, matching the order within a
      single pixel from most significant bit to least significant bit.
      
      The YUV format names vary more. For the 4:2:2 packed formats and 2
      plane formats use the fourcc. For the three plane formats the
      name includes the plane order and subsampling information using the
      standard subsampling notation. Some of those also happen to match
      the official fourcc definition.
      
      The fourccs for for all the RGB formats and some of the YUV formats
      I invented myself. The idea was that looking at just the fourcc you
      get some idea what the format is about without having to decode it
      using some external reference.
      Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      04b3924d