xorg-x11-server-Xwayland/0009-xwayland-glamor-Add-return-status-to-post_damage.patch

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From c28bb0e879775aec83f5554522724eee592685dc Mon Sep 17 00:00:00 2001
From: Olivier Fourdan <ofourdan@redhat.com>
Date: Wed, 31 Mar 2021 13:57:45 +0200
Subject: [PATCH xserver 09/27] xwayland/glamor: Add return status to
post_damage
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
If the glamor backend failed to post damage, the caller should do the
same to avoid a failure to attach the buffer to the Wayland surface.
Change the API of Xwayland's glamor backend post_damage() to return a
status so that xwl_window_post_damage() can tell whether the callee
failed.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
https://gitlab.freedesktop.org/xorg/xserver/-/issues/1156
(cherry picked from commit 252cbad316f43edc08aa5c844789398a58ba270c)
---
hw/xwayland/xwayland-glamor-eglstream.c | 6 ++++--
hw/xwayland/xwayland-glamor.c | 6 ++++--
hw/xwayland/xwayland-glamor.h | 4 ++--
hw/xwayland/xwayland-window.c | 8 ++++++--
4 files changed, 16 insertions(+), 8 deletions(-)
diff --git a/hw/xwayland/xwayland-glamor-eglstream.c b/hw/xwayland/xwayland-glamor-eglstream.c
index c6e17bf8b..f64d05064 100644
--- a/hw/xwayland/xwayland-glamor-eglstream.c
+++ b/hw/xwayland/xwayland-glamor-eglstream.c
@@ -605,7 +605,7 @@ xwl_glamor_eglstream_allow_commits(struct xwl_window *xwl_window)
return FALSE;
}
-static void
+static Bool
xwl_glamor_eglstream_post_damage(struct xwl_window *xwl_window,
PixmapPtr pixmap, RegionPtr region)
{
@@ -625,7 +625,7 @@ xwl_glamor_eglstream_post_damage(struct xwl_window *xwl_window,
* flipping OpenGL or Vulkan window. In that case, we don't
* need to do the copy below.
*/
- return;
+ return TRUE;
/* Unbind the framebuffer BEFORE binding the EGLSurface, otherwise we
* won't actually draw to it
@@ -668,6 +668,8 @@ xwl_glamor_eglstream_post_damage(struct xwl_window *xwl_window,
/* hang onto the pixmap until the compositor has released it */
pixmap->refcnt++;
+
+ return TRUE;
}
static Bool
diff --git a/hw/xwayland/xwayland-glamor.c b/hw/xwayland/xwayland-glamor.c
index 9e44d5106..e940f9fd7 100644
--- a/hw/xwayland/xwayland-glamor.c
+++ b/hw/xwayland/xwayland-glamor.c
@@ -304,14 +304,16 @@ xwl_glamor_pixmap_get_wl_buffer(PixmapPtr pixmap)
return NULL;
}
-void
+Bool
xwl_glamor_post_damage(struct xwl_window *xwl_window,
PixmapPtr pixmap, RegionPtr region)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
if (xwl_screen->egl_backend->post_damage)
- xwl_screen->egl_backend->post_damage(xwl_window, pixmap, region);
+ return xwl_screen->egl_backend->post_damage(xwl_window, pixmap, region);
+
+ return TRUE;
}
Bool
diff --git a/hw/xwayland/xwayland-glamor.h b/hw/xwayland/xwayland-glamor.h
index 26ab78f04..cf3c4fba3 100644
--- a/hw/xwayland/xwayland-glamor.h
+++ b/hw/xwayland/xwayland-glamor.h
@@ -83,7 +83,7 @@ struct xwl_egl_backend {
* you should implement blitting from the glamor pixmap to the wayland
* pixmap here. Otherwise, this callback is optional.
*/
- void (*post_damage)(struct xwl_window *xwl_window,
+ Bool (*post_damage)(struct xwl_window *xwl_window,
PixmapPtr pixmap, RegionPtr region);
/* Called by Xwayland to confirm with the egl backend that the given
@@ -117,7 +117,7 @@ void xwl_glamor_init_wl_registry(struct xwl_screen *xwl_screen,
uint32_t version);
Bool xwl_glamor_has_wl_interfaces(struct xwl_screen *xwl_screen,
struct xwl_egl_backend *xwl_egl_backend);
-void xwl_glamor_post_damage(struct xwl_window *xwl_window,
+Bool xwl_glamor_post_damage(struct xwl_window *xwl_window,
PixmapPtr pixmap, RegionPtr region);
Bool xwl_glamor_allow_commits(struct xwl_window *xwl_window);
void xwl_glamor_egl_make_current(struct xwl_screen *xwl_screen);
diff --git a/hw/xwayland/xwayland-window.c b/hw/xwayland/xwayland-window.c
index af4290ec7..00f161eda 100644
--- a/hw/xwayland/xwayland-window.c
+++ b/hw/xwayland/xwayland-window.c
@@ -811,8 +811,12 @@ xwl_window_post_damage(struct xwl_window *xwl_window)
}
#ifdef XWL_HAS_GLAMOR
- if (xwl_screen->glamor)
- xwl_glamor_post_damage(xwl_window, pixmap, region);
+ if (xwl_screen->glamor) {
+ if (!xwl_glamor_post_damage(xwl_window, pixmap, region)) {
+ ErrorF("glamor: Failed to post damage\n");
+ return;
+ }
+ }
#endif
wl_surface_attach(xwl_window->surface, buffer, 0, 0);
--
2.31.1