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backend/x11: re-send last buffer on expose event

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Instead of requesting a new frame from the compositor when we
receive an expose event, re-submit the last frame. This makes the
X11 backend behave like the other backends and removes the last
wlr_output_update_needs_frame() call in backends, at the cost of
keeping the current buffer locked for potentially a longer time.
This commit is contained in:
Simon Ser 2023-08-16 10:42:56 +02:00
parent 664ec59095
commit 5da9ad3e34
3 changed files with 81 additions and 27 deletions
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5
include/backend/x11.h
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@ -44,6 +44,9 @@ struct wlr_x11_output {
pixman_region32_t exposed;
// Last submitted buffer, to be re-submitted on expose events
struct wlr_buffer *current_buffer;
uint64_t last_msc;
struct {
@ -141,5 +144,7 @@ void handle_x11_configure_notify(struct wlr_x11_output *output,
xcb_configure_notify_event_t *event);
void handle_x11_present_event(struct wlr_x11_backend *x11,
xcb_ge_generic_event_t *event);
void handle_x11_expose_event(struct wlr_x11_output *output,
xcb_expose_event_t *event);
#endif