[PATCH] drm: Fix drm.h uapi header for Windows

[Pekka Paalanen]

On Wed, 2 Dec 2020 23:25:58 +0100
Daniel Vetter <daniel at ffwll.ch> wrote:

> Also kinda disappointing that drm_fourcc.h includes drm.h and isn't
> standalone, but I guess that sailed (at least for linux).

Hi,

FWIW, libweston core needs drm_fourcc.h too, even if nothing would ever
use DRM or need libdrm otherwise. A stand-alone drm_fourcc.h
replacement would make sense, although distributing it through libdrm
would still make libweston require libdrm headers at build time, even
if it doesn't need libdrm.so. Not a big deal, and I don't know if
anyone actually builds libweston without DRM-backend.

Inventing yet another pixel format enumeration just because you don't
want to depend on a specific piece of other software really sucks, so
libweston went with DRM formats as the canonical enumeration. And
Wayland protocols use it too - Wayland clients rarely have any use for
libdrm otherwise.

Maybe a new header drm_formats.h that is what drm_fourcc.h should have
been, and make drm_fourcc.h include that to be backwards API compatible?


Thanks,
pq
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