egl/x11: Support DRI3 v1.1

Add support for DRI3 v1.1, which allows pixmaps to be backed by
multi-planar buffers, or those with format modifiers. This is both
for allocating render buffers, as well as EGLImage imports from a
native pixmap (EGL_NATIVE_PIXMAP_KHR).

Signed-off-by: Louis-Francis Ratté-Boulianne <[email protected]>
Reviewed-by: Eric Engestrom <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
Reviewed-by: Daniel Stone <[email protected]>

1 files changed, 7 insertions, 0 deletions

diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index c06a0ca0995..1bd57c9ea31 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -881,6 +881,13 @@ dri2_setup_extensions(_EGLDisplay *disp)
    if (!dri2_bind_extensions(dri2_dpy, mandatory_core_extensions, extensions, false))
       return EGL_FALSE;
 
+#ifdef HAVE_DRI3
+   dri2_dpy->multibuffers_available =
+      (dri2_dpy->dri3_major_version > 1 || (dri2_dpy->dri3_major_version == 1 &&
+                                            dri2_dpy->dri3_minor_version >= 2)) &&
+      (dri2_dpy->image && dri2_dpy->image->base.version >= 15);
+#endif
+
    dri2_bind_extensions(dri2_dpy, optional_core_extensions, extensions, true);
    return EGL_TRUE;
 }