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event: lazify screen update

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Set root screen change flag in event handler, and update in
draw_callback.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui
2019-03-17 15:17:48 +00:00
parent e414fee91f
commit e8f2298159
4 changed files with 39 additions and 25 deletions
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34
src/compton.c
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@ -48,8 +48,8 @@
#ifdef CONFIG_DBUS
#include "dbus.h"
#endif
#include "options.h"
#include "event.h"
#include "options.h"
/// Get session_t pointer from a pointer to a member of session_t
#define session_ptr(ptr, member) \
@ -58,7 +58,6 @@
(session_t *)((char *)__mptr - offsetof(session_t, member)); \
})
static bool must_use redir_start(session_t *ps);
static void redir_stop(session_t *ps);
@ -85,6 +84,10 @@ const char *const BACKEND_STRS[NUM_BKEND + 1] = {"xrender", // BKEN
/// XXX Limit what xerror can access by not having this pointer
session_t *ps_g = NULL;
void set_root_flags(session_t *ps, uint64_t flags) {
ps->root_flags |= flags;
}
/**
* Free Xinerama screen info.
*
@ -96,7 +99,7 @@ static inline void free_xinerama_info(session_t *ps) {
pixman_region32_fini(&ps->xinerama_scr_regs[i]);
free(ps->xinerama_scr_regs);
}
cxfree(ps->xinerama_scrs);
free(ps->xinerama_scrs);
ps->xinerama_scrs = NULL;
ps->xinerama_nscrs = 0;
}
@ -397,6 +400,23 @@ xcb_window_t find_client_win(session_t *ps, xcb_window_t w) {
return ret;
}
static void handle_root_flags(session_t *ps) {
if ((ps->root_flags & ROOT_FLAGS_SCREEN_CHANGE) != 0) {
if (ps->o.xinerama_shadow_crop) {
cxinerama_upd_scrs(ps);
}
if (ps->o.sw_opti && !ps->o.refresh_rate) {
update_refresh_rate(ps);
if (!ps->refresh_rate) {
log_warn("Refresh rate detection failed. swopti will be "
"temporarily disabled");
}
}
ps->root_flags &= ~ROOT_FLAGS_SCREEN_CHANGE;
}
}
static win *paint_preprocess(session_t *ps, bool *fade_running) {
// XXX need better, more general name for `fade_running`. It really
// means if fade is still ongoing after the current frame is rendered
@ -970,7 +990,6 @@ void update_ewmh_active_win(session_t *ps) {
win_set_focused(ps, w, true);
}
// === Main ===
/**
@ -1406,6 +1425,11 @@ static void _draw_callback(EV_P_ session_t *ps, int revents) {
}
}
// TODO xcb_grab_server
// TODO clean up event queue
handle_root_flags(ps);
bool fade_running = false;
win *t = paint_preprocess(ps, &fade_running);
ps->tmout_unredir_hit = false;
@ -1435,6 +1459,8 @@ static void _draw_callback(EV_P_ session_t *ps, int revents) {
if (!fade_running)
ps->fade_time = 0L;
// TODO xcb_ungrab_server
ps->redraw_needed = false;
}