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

[Daniel Vetter]

On Thu, Dec 3, 2020 at 7:55 PM James Park <james.park at lagfreegames.com> wrote:
>
> The trailing underscore for  DRM_FOURCC_STANDALONE_ isn't intentional, right? Should I put all the integer types, or just the ones that are used in that file?

Yeah that trailing _ just slipped in. And I'd just do the types
already used. I don't think anything else than __u32 (for drm fourcc)
and __u64 (for drm modifier) is needed.
-Daniel

>
> Thanks,
> James
>
> On Thu, Dec 3, 2020 at 6:52 AM Daniel Vetter <daniel at ffwll.ch> wrote:
>>
>> On Thu, Dec 3, 2020 at 9:18 AM Michel Dänzer <michel at daenzer.net> wrote:
>> >
>> > On 2020-12-02 8:47 p.m., James Park wrote:
>> > >
>> > > If we're trying to cut ties with the drm-uapi folder entirely, the stuff
>> > > ac_surface.c need includes the AMD_FMT_MOD stuff in drm_fourcc.h,
>> > > and AMDGPU_TILING_* under amdgpu_drm.h. Is there a better spot for these
>> > > definitions?
>> >
>> > The Mesa src/amd/ code should use platform-neutral abstractions for
>> > these. This wasn't deemed necessary before, because nobody was trying to
>> > build these drivers for non-UNIX OSes. But now you are.
>>
>> I think that's a bit much busy work for not much gain. drm_fourcc.h is
>> even included as the official source of truth of some khr extensions,
>> making that header stand-alone and useable cross-platform sounds like
>> a good idea to me. Something like the below is imo perfectly fine:
>>
>> diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
>> index ca48ed0e6bc1..0a121b3efb58 100644
>> --- a/include/uapi/drm/drm_fourcc.h
>> +++ b/include/uapi/drm/drm_fourcc.h
>> @@ -24,7 +24,11 @@
>> #ifndef DRM_FOURCC_H
>> #define DRM_FOURCC_H
>>
>> +#ifndef DRM_FOURCC_STANDALONE_
>> +/* include the linux uapi types here */
>> +#else
>> #include "drm.h"
>> +#endif
>>
>> #if defined(__cplusplus)
>> extern "C" {
>>
>>
>> Cheers, Daniel
>>
>> >
>> >
>> > --
>> > Earthling Michel Dänzer               |               https://redhat.com
>> > Libre software enthusiast             |             Mesa and X developer
>> > _______________________________________________
>> > dri-devel mailing list
>> > dri-devel at lists.freedesktop.org
>> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
>>
>>
>>
>> --
>> Daniel Vetter
>> Software Engineer, Intel Corporation
>> http://blog.ffwll.ch



-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch