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wsi/x11: Add helper to find appropriate screen resources for a window.

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Correlate the screen roots with the xcb_window_t root.
This mapping should be static.

Signed-off-by: Hans-Kristian Arntzen <post@arntzen-software.no>
Reviewed-and-tested-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39551>
This commit is contained in:
Hans-Kristian Arntzen 2026-02-19 12:50:15 +01:00 • committed by Marge Bot
parent 3778c321c4
commit 779eb97cd2
1 changed files with 26 additions and 0 deletions
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26
src/vulkan/wsi/wsi_common_x11.c
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@ -464,6 +464,32 @@ wsi_x11_get_connection(struct wsi_device *wsi_dev,
return entry->data;
}
static struct wsi_x11_screen_resources *
wsi_x11_connection_find_screen_resources(struct wsi_device *wsi_dev, xcb_connection_t *conn, xcb_window_t window)
{
struct wsi_x11_connection *wsi_conn = wsi_x11_get_connection(wsi_dev, conn);
xcb_get_geometry_cookie_t geometry_cookie = xcb_get_geometry_unchecked(conn, window);
xcb_get_geometry_reply_t *geometry_reply = xcb_get_geometry_reply(conn, geometry_cookie, NULL);
/* Returning NULL would normally signal SURFACE_LOST, but this isn't fatal.
* We just won't support present timing. */
if (!geometry_reply)
return NULL;
struct wsi_x11_screen_resources *screen_resources = NULL;
list_for_each_entry(struct wsi_x11_screen_resources, resource, &wsi_conn->screen_resources_list, link) {
if (resource->screen_resources.screen &&
resource->screen_resources.screen->root == geometry_reply->root) {
screen_resources = resource;
break;
}
}
free(geometry_reply);
return screen_resources;
}
static const VkFormat formats[] = {
VK_FORMAT_R5G6B5_UNORM_PACK16,
VK_FORMAT_B8G8R8A8_SRGB,