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backend/x11: create per-window present event contexts

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The Present protocol states:

> An event context is associated with a specific window; using an existing
> event context with a different window generates a Match error.

Instead of a global event context, use a per-window event context to fix
this error:

    [backend/x11/backend.c:608] X11 error: op Present (SelectInput), code Match (no extension), sequence 63, value 4194307

Closes: https://github.com/swaywm/wlroots/issues/2577
This commit is contained in:
Simon Ser 2020-12-28 12:27:27 +01:00
parent 23b6f3e3f5
commit caeed70f28
3 changed files with 5 additions and 4 deletions
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2
include/backend/x11.h
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@ -34,6 +34,7 @@ struct wlr_x11_output {
struct wl_list link; // wlr_x11_backend::outputs
xcb_window_t win;
xcb_present_event_t present_event_id;
struct wlr_swapchain *swapchain;
struct wlr_buffer *back_buffer;
@ -68,7 +69,6 @@ struct wlr_x11_backend {
xcb_depth_t *depth;
xcb_visualid_t visualid;
xcb_colormap_t colormap;
xcb_present_event_t present_event_id;
size_t requested_outputs;
size_t last_output_num;