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-rw-r--r--screen-redraw.c6
-rw-r--r--screen-write.c11
-rw-r--r--tmux.12
-rw-r--r--tmux.h6
-rw-r--r--tty-keys.c2
-rw-r--r--tty-term.c5
-rw-r--r--tty.c26
7 files changed, 56 insertions, 2 deletions
diff --git a/screen-redraw.c b/screen-redraw.c
index 211f7f79..c510fb68 100644
--- a/screen-redraw.c
+++ b/screen-redraw.c
@@ -435,6 +435,7 @@ screen_redraw_screen(struct client *c)
flags = screen_redraw_update(c, c->flags);
screen_redraw_set_context(c, &ctx);
+ tty_sync_start(&c->tty);
if (flags & (CLIENT_REDRAWWINDOW|CLIENT_REDRAWBORDERS)) {
if (ctx.pane_status != PANE_STATUS_OFF)
@@ -448,7 +449,9 @@ screen_redraw_screen(struct client *c)
screen_redraw_draw_status(&ctx);
if (c->overlay_draw != NULL && (flags & CLIENT_REDRAWOVERLAY))
c->overlay_draw(c, &ctx);
+
tty_reset(&c->tty);
+ tty_sync_end(&c->tty);
}
/* Redraw a single pane. */
@@ -461,9 +464,12 @@ screen_redraw_pane(struct client *c, struct window_pane *wp)
return;
screen_redraw_set_context(c, &ctx);
+ tty_sync_start(&c->tty);
screen_redraw_draw_pane(&ctx, wp);
+
tty_reset(&c->tty);
+ tty_sync_end(&c->tty);
}
/* Draw a border cell. */
diff --git a/screen-write.c b/screen-write.c
index b2f9e223..3e7fa66b 100644
--- a/screen-write.c
+++ b/screen-write.c
@@ -100,7 +100,8 @@ void
screen_write_start(struct screen_write_ctx *ctx, struct window_pane *wp,
struct screen *s)
{
- u_int y;
+ struct tty_ctx ttyctx;
+ u_int y;
memset(ctx, 0, sizeof *ctx);
@@ -129,18 +130,26 @@ screen_write_start(struct screen_write_ctx *ctx, struct window_pane *wp,
screen_size_y(ctx->s));
}
}
+
+ screen_write_initctx(ctx, &ttyctx);
+ tty_write(tty_cmd_syncstart, &ttyctx);
}
/* Finish writing. */
void
screen_write_stop(struct screen_write_ctx *ctx)
{
+ struct tty_ctx ttyctx;
+
screen_write_collect_end(ctx);
screen_write_collect_flush(ctx, 0);
log_debug("%s: %u cells (%u written, %u skipped)", __func__,
ctx->cells, ctx->written, ctx->skipped);
+ screen_write_initctx(ctx, &ttyctx);
+ tty_write(tty_cmd_syncend, &ttyctx);
+
free(ctx->item);
free(ctx->list); /* flush will have emptied */
}
diff --git a/tmux.1 b/tmux.1
index 81a5c613..fd022c9e 100644
--- a/tmux.1
+++ b/tmux.1
@@ -5511,6 +5511,8 @@ $ printf '\e033[4 q'
If
.Em Se
is not set, \&Ss with argument 0 will be used to reset the cursor style instead.
+.It Em \&Sync
+Show that the terminal supports synchronized updates.
.It Em \&Tc
Indicate that the terminal supports the
.Ql direct colour
diff --git a/tmux.h b/tmux.h
index 98d78a63..87d38ef3 100644
--- a/tmux.h
+++ b/tmux.h
@@ -452,6 +452,7 @@ enum tty_code_code {
TTYC_SMUL,
TTYC_SMXX,
TTYC_SS,
+ TTYC_SYNC,
TTYC_TC,
TTYC_TSL,
TTYC_U8,
@@ -1181,6 +1182,7 @@ struct tty_term {
#define TERM_DECSLRM 0x4
#define TERM_DECFRA 0x8
#define TERM_RGBCOLOURS 0x10
+#define TERM_SYNC 0x20
int flags;
LIST_ENTRY(tty_term) entry;
@@ -1949,6 +1951,8 @@ void tty_set_title(struct tty *, const char *);
void tty_update_mode(struct tty *, int, struct screen *);
void tty_draw_line(struct tty *, struct window_pane *, struct screen *,
u_int, u_int, u_int, u_int, u_int);
+void tty_sync_start(struct tty *);
+void tty_sync_end(struct tty *);
int tty_open(struct tty *, char **);
void tty_close(struct tty *);
void tty_free(struct tty *);
@@ -1976,6 +1980,8 @@ void tty_cmd_scrolldown(struct tty *, const struct tty_ctx *);
void tty_cmd_reverseindex(struct tty *, const struct tty_ctx *);
void tty_cmd_setselection(struct tty *, const struct tty_ctx *);
void tty_cmd_rawstring(struct tty *, const struct tty_ctx *);
+void tty_cmd_syncstart(struct tty *, const struct tty_ctx *);
+void tty_cmd_syncend(struct tty *, const struct tty_ctx *);
/* tty-term.c */
extern struct tty_terms tty_terms;
diff --git a/tty-keys.c b/tty-keys.c
index 064f2172..1fcc74b8 100644
--- a/tty-keys.c
+++ b/tty-keys.c
@@ -1117,7 +1117,7 @@ tty_keys_device_status_report(struct tty *tty, const char *buf, size_t len,
/* Set terminal flags. */
if (strncmp(tmp, "ITERM2 ", 7) == 0)
- flags |= (TERM_DECSLRM|TERM_256COLOURS|TERM_RGBCOLOURS);
+ flags |= (TERM_DECSLRM|TERM_256COLOURS|TERM_RGBCOLOURS|TERM_SYNC);
if (strncmp(tmp, "TMUX ", 5) == 0)
flags |= (TERM_256COLOURS|TERM_RGBCOLOURS);
log_debug("%s: received DSR %.*s", c->name, (int)*size, buf);
diff --git a/tty-term.c b/tty-term.c
index ef7d7905..d6faa6ff 100644
--- a/tty-term.c
+++ b/tty-term.c
@@ -260,6 +260,7 @@ static const struct tty_term_code_entry tty_term_codes[] = {
[TTYC_SMUL] = { TTYCODE_STRING, "smul" },
[TTYC_SMXX] = { TTYCODE_STRING, "smxx" },
[TTYC_SS] = { TTYCODE_STRING, "Ss" },
+ [TTYC_SYNC] = { TTYCODE_FLAG, "Sync" },
[TTYC_TC] = { TTYCODE_FLAG, "Tc" },
[TTYC_TSL] = { TTYCODE_STRING, "tsl" },
[TTYC_U8] = { TTYCODE_NUMBER, "U8" },
@@ -532,6 +533,10 @@ tty_term_find(char *name, int fd, char **cause)
tty_term_has(term, TTYC_SETRGBB)))
term->flags |= TERM_RGBCOLOURS;
+ /* Set flag if terminal has synchronized updates. */
+ if (tty_term_flag(term, TTYC_SYNC))
+ term->flags |= TERM_SYNC;
+
/*
* Terminals without xenl (eat newline glitch) wrap at at $COLUMNS - 1
* rather than $COLUMNS (the cursor can never be beyond $COLUMNS - 1).
diff --git a/tty.c b/tty.c
index a7607cba..95c16fb8 100644
--- a/tty.c
+++ b/tty.c
@@ -1426,6 +1426,20 @@ tty_draw_line(struct tty *tty, struct window_pane *wp, struct screen *s,
tty_update_mode(tty, tty->mode, s);
}
+void
+tty_sync_start(struct tty *tty)
+{
+ if ((tty->term->flags|tty->term_flags) & TERM_SYNC)
+ tty_puts(tty, "\033P=1s\033\\");
+}
+
+void
+tty_sync_end(struct tty *tty)
+{
+ if ((tty->term->flags|tty->term_flags) & TERM_SYNC)
+ tty_puts(tty, "\033P=2s\033\\");
+}
+
static int
tty_client_ready(struct client *c, struct window_pane *wp)
{
@@ -1919,6 +1933,18 @@ tty_cmd_rawstring(struct tty *tty, const struct tty_ctx *ctx)
tty_invalidate(tty);
}
+void
+tty_cmd_syncstart(struct tty *tty, __unused const struct tty_ctx *ctx)
+{
+ tty_sync_start(tty);
+}
+
+void
+tty_cmd_syncend(struct tty *tty, __unused const struct tty_ctx *ctx)
+{
+ tty_sync_end(tty);
+}
+
static void
tty_cell(struct tty *tty, const struct grid_cell *gc, struct window_pane *wp)
{