[RFC dri3proto 01/16] Add modifier/multi-plane requests, bump to v1.1

[Daniel Stone]

On 17 June 2017 at 02:21, Eric Anholt <eric at anholt.net> wrote:
> With the Present extension, we started putting CARD64s on the wire.
> Let's use them here, too.

Mm, we did have that originally, but anyone including XSync headers
very helpfully gets #define CARD64 XSyncValue, which blows up into int
+ unsigned int. This includes dri3_request.c, which pulls in syncsrv.h
-> misyncstr.h:
../../dri3/dri3_request.c: In function ‘proc_dri3_get_supported_modifiers’:
../../dri3/dri3_request.c:407:23: error: invalid initializer
     CARD64 modifier = 0;
                       ^
../../dri3/dri3_request.c:431:6: error: conversion to non-scalar type requested
      modifier = (CARD64) (modifiers_hi[i] << 32);
      ^~~~~~~~

I'd originally thought that came from the server-only part of
xexxtproto/syncstr.h, but turns out it's actually just in
miext/sync/misyncstr.h. So I guess we could run s/CARD64/XSyncValue/
across sync, but it would (at least theoretically) be an API break.

Cheers,
Daniel