From: Dongwon Kim <dongwon.kim@intel.com>
Date: Thu, 4 Nov 2021 06:51:50 +0000 (-0700)
Subject: ui/gtk-egl: guest fb texture needs to be regenerated when reinitializing egl
X-Git-Tag: qemu-xen-4.17.0-rc4~239^2~2
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=4872a023a593e6519b272a57fea03abe13a7bb00;p=qemu-xen.git

ui/gtk-egl: guest fb texture needs to be regenerated when reinitializing egl

If guest fb is backed by dmabuf (blob-resource), the texture bound to the
old context needs to be recreated in case the egl is re-initialized (e.g.
new window for vc is created in case of detaching/reattaching of the tab)

v2: call egl_dmabuf_release_texutre instead of putting 0 to dmabuf->texture
    (Vivek Kasireddy)

Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
Message-Id: <20211104065153.28897-3-dongwon.kim@intel.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---

diff --git a/ui/gtk-egl.c b/ui/gtk-egl.c
index 2164995098..f2026e4b5c 100644
--- a/ui/gtk-egl.c
+++ b/ui/gtk-egl.c
@@ -155,6 +155,10 @@ void gd_egl_refresh(DisplayChangeListener *dcl)
             surface_gl_destroy_texture(vc->gfx.gls, vc->gfx.ds);
             surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds);
         }
+        if (vc->gfx.guest_fb.dmabuf) {
+            egl_dmabuf_release_texture(vc->gfx.guest_fb.dmabuf);
+            gd_egl_scanout_dmabuf(dcl, vc->gfx.guest_fb.dmabuf);
+        }
     }
 
     graphic_hw_update(dcl->con);