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If redrawing the region would mean redrawing > half the pane, just schedule to

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redraw the entire window. Also add a flag to skip updating the window any
further if it is scheduled to be redrawn. This has the effect of batching
multiple redraws together.
This commit is contained in:
Nicholas Marriott 2009-04-02 20:30:23 +00:00
parent b38f6608c7
commit 84cde92c8f
6 changed files with 51 additions and 39 deletions
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11
CHANGES
View File

@ -1,3 +1,12 @@
02 April 2009
* If redrawing the region would mean redrawing > half the pane, just schedule
to redraw the entire window. Also add a flag to skip updating the window any
further if it is scheduled to be redrawn. This has the effect of batching
multiple redraws together.
Redraws should be moved to the pane level later.
01 April 2009
* Basic horizontal splitting and layout management. Still some redraw and other
@ -1185,7 +1194,7 @@
(including mutt, emacs). No status bar yet and no key remapping or other
customisation.
$Id: CHANGES,v 1.268 2009-04-01 18:22:31 nicm Exp $
$Id: CHANGES,v 1.269 2009-04-02 20:30:17 nicm Exp $
LocalWords: showw utf UTF fulvio ciriaco joshe OSC APC gettime abc DEF OA clr
LocalWords: rivo nurges lscm Erdely eol smysession mysession ek dstname RB ms

3
server-fn.c
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@ -1,4 +1,4 @@
/* $Id: server-fn.c,v 1.57 2009-03-07 09:42:13 nicm Exp $ */
/* $Id: server-fn.c,v 1.58 2009-04-02 20:30:20 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -146,6 +146,7 @@ server_redraw_window(struct window *w)
if (c->session->curw->window == w)
server_redraw_client(c);
}
w->flags |= WINDOW_REDRAW;
}
void

4
server.c
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@ -1,4 +1,4 @@
/* $Id: server.c,v 1.134 2009-04-01 21:10:08 nicm Exp $ */
/* $Id: server.c,v 1.135 2009-04-02 20:30:20 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -921,6 +921,8 @@ server_check_window(struct window *w)
wp = wq;
}
w->flags &= ~WINDOW_REDRAW; /* redrawn as part of client */
if (!destroyed)
return;

5
tmux.h
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@ -1,4 +1,4 @@
/* $Id: tmux.h,v 1.295 2009-04-01 21:10:08 nicm Exp $ */
/* $Id: tmux.h,v 1.296 2009-04-02 20:30:20 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -694,6 +694,7 @@ struct window {
#define WINDOW_BELL 0x1
#define WINDOW_HIDDEN 0x2
#define WINDOW_ACTIVITY 0x4
#define WINDOW_REDRAW 0x8
struct options options;
@ -1085,7 +1086,7 @@ void tty_set_title(struct tty *, const char *);
void tty_update_mode(struct tty *, int);
void tty_draw_line(
struct tty *, struct screen *, u_int, u_int, u_int);
void tty_draw_region(struct tty *, struct screen *, u_int, u_int);
void tty_redraw_region(struct tty *, struct window_pane *);
int tty_open(struct tty *, char **);
void tty_close(struct tty *, int);
void tty_free(struct tty *, int);

6
tty-write.c
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@ -1,4 +1,4 @@
/* $Id: tty-write.c,v 1.12 2009-02-21 19:25:58 nicm Exp $ */
/* $Id: tty-write.c,v 1.13 2009-04-02 20:30:23 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -42,6 +42,8 @@ tty_vwrite_cmd(struct window_pane *wp, enum tty_cmd cmd, va_list ap)
if (wp == NULL)
return;
if (wp->window->flags & WINDOW_REDRAW)
return;
if (wp->window->flags & WINDOW_HIDDEN || wp->flags & PANE_HIDDEN)
return;
@ -71,6 +73,8 @@ tty_write_mode(struct window_pane *wp, int mode)
if (wp == NULL)
return;
if (wp->window->flags & WINDOW_REDRAW)
return;
if (wp->window->flags & WINDOW_HIDDEN || wp->flags & PANE_HIDDEN)
return;

59
tty.c
View File

@ -1,4 +1,4 @@
/* $Id: tty.c,v 1.90 2009-04-01 18:21:42 nicm Exp $ */
/* $Id: tty.c,v 1.91 2009-04-02 20:30:23 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -379,17 +379,36 @@ tty_emulate_repeat(
}
}
/*
* Redraw scroll region using data from screen (already updated). Used when
* CSR not supported, or window is a pane that doesn't take up the full
* width of the terminal.
*/
void
tty_draw_region(struct tty *tty, struct screen *s, u_int ox, u_int oy)
tty_redraw_region(struct tty *tty, struct window_pane *wp)
{
struct screen *s = wp->screen;
u_int i;
/*
* If region is >= 50% of the screen, just schedule a window redraw. In
* most cases, this is likely to be followed by some more scrolling -
* without this, the entire pane ends up being redrawn many times which
* can be much more data.
*
* XXX Should just schedule to redraw this pane...
*/
if (s->old_rupper - s->old_rlower >= screen_size_y(s) / 2) {
server_redraw_window(wp->window);
return;
}
if (s->old_cy < s->old_rupper || s->old_cy > s->old_rlower) {
for (i = s->old_cy; i < screen_size_y(s); i++)
tty_draw_line(tty, s, i, ox, oy);
tty_draw_line(tty, s, i, wp->xoff, wp->yoff);
} else {
for (i = s->old_rupper; i <= s->old_rlower; i++)
tty_draw_line(tty, s, i, ox, oy);
tty_draw_line(tty, s, i, wp->xoff, wp->yoff);
}
}
@ -508,11 +527,7 @@ tty_cmd_insertline(struct tty *tty, struct window_pane *wp, va_list ap)
if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
!tty_term_has(tty->term, TTYC_CSR)) {
/*
* Scroll region unsupported. Redraw using data from screen
* (already updated).
*/
tty_draw_region(tty, s, wp->xoff, wp->yoff);
tty_redraw_region(tty, wp);
return;
}
@ -534,11 +549,7 @@ tty_cmd_deleteline(struct tty *tty, struct window_pane *wp, va_list ap)
if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
!tty_term_has(tty->term, TTYC_CSR)) {
/*
* Scroll region unsupported. Redraw using data from screen
* (already updated).
*/
tty_draw_region(tty, s, wp->xoff, wp->yoff);
tty_redraw_region(tty, wp);
return;
}
@ -612,18 +623,10 @@ void
tty_cmd_reverseindex(struct tty *tty, struct window_pane *wp, unused va_list ap)
{
struct screen *s = wp->screen;
u_int i;
if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
!tty_term_has(tty->term, TTYC_CSR)) {
/*
* Scroll region unsupported. If would have scrolled, redraw
* scroll region from already updated window screen.
*/
if (s->old_cy != s->old_rupper)
return;
for (i = s->old_rupper; i <= s->old_rlower; i++)
tty_draw_line(tty, wp->screen, i, wp->xoff, wp->yoff);
tty_redraw_region(tty, wp);
return;
}
@ -641,18 +644,10 @@ void
tty_cmd_linefeed(struct tty *tty, struct window_pane *wp, unused va_list ap)
{
struct screen *s = wp->screen;
u_int i;
if (wp->xoff != 0 || screen_size_x(s) < tty->sx ||
!tty_term_has(tty->term, TTYC_CSR)) {
/*
* Scroll region unsupported. If would have scrolled, redraw
* scroll region from already updated window screen.
*/
if (s->old_cy != s->old_rlower)
return;
for (i = s->old_rupper; i <= s->old_rlower; i++)
tty_draw_line(tty, wp->screen, i, wp->xoff, wp->yoff);
tty_redraw_region(tty, wp);
return;
}