[mutter] wayland-dma-buf: Add support for DRM_FORMAT_ABGR2101010

[Marge Bot <marge-bot src gnome org>]

commit 3555f65b75b5fb5b948e9f92b0238827ae26d487
Author: Daniel van Vugt <daniel van vugt canonical com>
Date:   Tue Mar 23 11:59:59 2021 +0800

    wayland-dma-buf: Add support for DRM_FORMAT_ABGR2101010
    
    It seems to be the preferred format of the Mesa V3D driver on
    Raspberry Pi 4. If the compositor doesn't advertise it then Mesa will
    fallback from `zwp_linux_dmabuf_v1` to `wl_drm`, incorrectly. Meaning
    it will keep using a buffer with modifiers on an interface that does
    not have modifiers.
    
    Add support for `DRM_FORMAT_ABGR2101010`. It works, and prevents Mesa
    from taking its broken fallback path.
    
    Fixes: https://gitlab.gnome.org/GNOME/mutter/-/issues/1520
    Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1798>

 src/wayland/meta-wayland-dma-buf.c | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/src/wayland/meta-wayland-dma-buf.c b/src/wayland/meta-wayland-dma-buf.c
index 5b00a5f668..ce89837411 100644
--- a/src/wayland/meta-wayland-dma-buf.c
+++ b/src/wayland/meta-wayland-dma-buf.c
@@ -124,6 +124,9 @@ meta_wayland_dma_buf_realize_texture (MetaWaylandBuffer  *buffer,
     case DRM_FORMAT_ARGB2101010:
       cogl_format = COGL_PIXEL_FORMAT_ARGB_2101010_PRE;
       break;
+    case DRM_FORMAT_ABGR2101010:
+      cogl_format = COGL_PIXEL_FORMAT_ABGR_2101010_PRE;
+      break;
     case DRM_FORMAT_RGB565:
       cogl_format = COGL_PIXEL_FORMAT_RGB_565;
       break;
@@ -701,6 +704,7 @@ dma_buf_bind (struct wl_client *client,
   send_modifiers (resource, DRM_FORMAT_ARGB8888);
   send_modifiers (resource, DRM_FORMAT_XRGB8888);
   send_modifiers (resource, DRM_FORMAT_ARGB2101010);
+  send_modifiers (resource, DRM_FORMAT_ABGR2101010);
   send_modifiers (resource, DRM_FORMAT_XRGB2101010);
   send_modifiers (resource, DRM_FORMAT_RGB565);
   send_modifiers (resource, DRM_FORMAT_ABGR16161616F);