Re: [PATCH] drm/fourcc: add LINEAR modifiers with an exact pitch alignment

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On Tue, Jan 14, 2025 at 12:55 PM James Jones <jajones@xxxxxxxxxx> wrote:
I don't see how that fits in the current modifier usage patterns. I'm
not clear how applications are supposed to programmatically "look at the
modifiers of other drivers to find commonalities," nor how that "keeps
"expectations the same as today for simplicity.". I think replacing the
existing linear modifier would be very disruptive, and I don't think
this proposal solves a general problem. Is it common for other vendors'
hardware to have such strict pitch/height alignment requirements? Prior
to this discussion, I'd only ever heard of minimum alignments.

James, no changes to apps are required. Driver developers can _choose_ to look at other drivers to find commonalities and expose them in their own drivers.

Marek

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