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picom
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Refresh stale image in critical section 

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui 2019-05-22 22:38:22 +01:00
parent b5da914920
commit 094f00a048
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GPG Key ID: 37C999F617EA1A47
3 changed files with 30 additions and 22 deletions
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4
src/common.h
View File

@ -229,8 +229,8 @@ typedef struct session {
bool reset:1;
/// If compton should quit
bool quit:1;
/// If new window has been added and not been handled
bool has_new_window:1;
/// Whether there are pending updates, like window creation, etc.
bool pending_updates:1;
// === Expose event related ===
/// Pointer to an array of <code>XRectangle</code>-s of exposed region.

44
src/compton.c
View File

@ -503,21 +503,6 @@ static struct managed_win *paint_preprocess(session_t *ps, bool *fade_running) {
// log_trace("%s %d %d %d", w->name, to_paint, w->opacity,
// w->paint_excluded);
if ((w->flags & WIN_FLAGS_IMAGE_STALE) != 0 &&
(w->flags & WIN_FLAGS_IMAGE_ERROR) == 0 && to_paint) {
// Image needs to be updated, update it.
w->flags &= ~WIN_FLAGS_IMAGE_STALE;
if (w->state != WSTATE_UNMAPPING &&
w->state != WSTATE_DESTROYING && ps->redirected) {
// Rebind image only when the window does have an image
// available
if (!win_try_rebind_image(ps, w)) {
w->flags |= WIN_FLAGS_IMAGE_ERROR;
to_paint = false;
}
}
}
// Add window to damaged area if its painting status changes
// or opacity changes
if (to_paint != was_painted) {
@ -1222,7 +1207,24 @@ static void handle_new_windows(session_t *ps) {
}
}
}
ps->has_new_window = false;
}
static void refresh_stale_images(session_t *ps) {
win_stack_foreach_managed(w, &ps->window_stack) {
if ((w->flags & WIN_FLAGS_IMAGE_STALE) != 0 &&
(w->flags & WIN_FLAGS_IMAGE_ERROR) == 0) {
// Image needs to be updated, update it.
w->flags &= ~WIN_FLAGS_IMAGE_STALE;
if (w->state != WSTATE_UNMAPPING &&
w->state != WSTATE_DESTROYING && ps->redirected) {
// Rebind image only when the window does have an image
// available
if (!win_try_rebind_image(ps, w)) {
w->flags |= WIN_FLAGS_IMAGE_ERROR;
}
}
}
}
}
/**
@ -1240,9 +1242,8 @@ static void fade_timer_callback(EV_P_ ev_timer *w, int revents) {
}
static void _draw_callback(EV_P_ session_t *ps, int revents) {
if (ps->has_new_window) {
log_debug("Delayed handling of new window events, entering critical "
"section");
if (ps->pending_updates) {
log_debug("Delayed handling of events, entering critical section");
auto e = xcb_request_check(ps->c, xcb_grab_server_checked(ps->c));
if (e) {
log_fatal("failed to grab x server");
@ -1257,6 +1258,9 @@ static void _draw_callback(EV_P_ session_t *ps, int revents) {
// Call fill_win on new windows
handle_new_windows(ps);
// Refresh pixmaps
refresh_stale_images(ps);
e = xcb_request_check(ps->c, xcb_ungrab_server_checked(ps->c));
if (e) {
log_fatal("failed to ungrab x server");
@ -1264,6 +1268,8 @@ static void _draw_callback(EV_P_ session_t *ps, int revents) {
e->error_code);
return quit_compton(ps);
}
ps->pending_updates = false;
log_debug("Exiting critical section");
}

4
src/win.c
View File

@ -796,6 +796,7 @@ void win_on_win_size_change(session_t *ps, struct managed_win *w) {
if (w->state == WSTATE_MAPPED || w->state == WSTATE_MAPPING ||
w->state == WSTATE_FADING) {
w->flags |= WIN_FLAGS_IMAGE_STALE;
ps->pending_updates = true;
} else {
assert(w->state == WSTATE_UNMAPPED);
}
@ -966,7 +967,7 @@ static struct win *add_win(session_t *ps, xcb_window_t id, struct list_node *pre
new_w->destroyed = false;
HASH_ADD_INT(ps->windows, id, new_w);
ps->has_new_window = true;
ps->pending_updates = true;
return new_w;
}
@ -1462,6 +1463,7 @@ void win_update_bounding_shape(session_t *ps, struct managed_win *w) {
// otherwise win_data is not valid
assert(w->state != WSTATE_UNMAPPING && w->state != WSTATE_DESTROYING);
w->flags |= WIN_FLAGS_IMAGE_STALE;
ps->pending_updates = true;
}
free_paint(ps, &w->paint);
free_paint(ps, &w->shadow_paint);