On Tue, Mar 25, 2014 at 07:23:26PM +0100, Daniel Vetter wrote:
> Or we simply do this per-pixel format with one for each framebuffer plane,
> i.e.
>
> struct drm_get_plane_fb_limits {
> uint32_t plane_id; /* in */
> uint32_t fourcc; /* in */
> struct drm_plane_limits limits[MAX_FOURCC_PLANES];
> /* the stuff above for all possible planes of a fourcc code */
> }
>
> Saner drivers could then return the same thing for all fourccs codes in
> their backend.
Some of the limits are definitely per format. Plane max dimensions are a
good example of a limit that can change per-format (8bpp Vs 10bpp to be
contained within the same max bandwidth of the hw).
--
Damien
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