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Use a pointer for the active screen in the status line instead of

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copying them around all the time.
This commit is contained in:
nicm 2019-03-16 19:12:13 +00:00
parent 818fda0363
commit b588b1729a
4 changed files with 73 additions and 76 deletions

2
screen-redraw.c
View File

@ -569,7 +569,7 @@ screen_redraw_draw_status(struct screen_redraw_ctx *ctx)
struct client *c = ctx->c;
struct window *w = c->session->curw->window;
struct tty *tty = &c->tty;
struct screen *s = &c->status.screen;
struct screen *s = c->status.active;
u_int i, y;
log_debug("%s: %s @%u", __func__, c->name, w->id);

139
status.c
View File

@ -296,6 +296,32 @@ status_get_window_at(struct client *c, u_int x)
return (NULL);
}
/* Save old status line. */
static void
status_push_screen(struct client *c)
{
struct status_line *sl = &c->status;
if (sl->active == &sl->screen) {
sl->active = xmalloc(sizeof *sl->active);
screen_init(sl->active, c->tty.sx, status_line_size(c), 0);
}
sl->references++;
}
/* Restore old status line. */
static void
status_pop_screen(struct client *c)
{
struct status_line *sl = &c->status;
if (--sl->references == 0) {
screen_free(sl->active);
free(sl->active);
sl->active = &sl->screen;
}
}
/* Initialize status line. */
void
status_init(struct client *c)
@ -303,6 +329,7 @@ status_init(struct client *c)
struct status_line *sl = &c->status;
screen_init(&sl->screen, c->tty.sx, 1, 0);
sl->active = &sl->screen;
}
/* Free status line. */
@ -314,37 +341,11 @@ status_free(struct client *c)
if (event_initialized(&sl->timer))
evtimer_del(&sl->timer);
if (sl->active != &sl->screen) {
screen_free(sl->active);
free(sl->active);
}
screen_free(&sl->screen);
if (sl->old_screen != NULL) {
screen_free(sl->old_screen);
free(sl->old_screen);
}
}
/* Save as old status line. */
static void
status_save_old(struct client *c)
{
struct status_line *sl = &c->status;
if (sl->old_screen == NULL) {
sl->old_screen = xmalloc(sizeof *sl->old_screen);
memcpy(sl->old_screen, &sl->screen, sizeof *sl->old_screen);
screen_init(&c->status.screen, c->tty.sx, 1, 0);
}
}
/* Free old status line. */
static void
status_free_old(struct client *c)
{
struct status_line *sl = &c->status;
if (sl->old_screen != NULL) {
screen_free(sl->old_screen);
free(sl->old_screen);
sl->old_screen = NULL;
}
}
/* Draw status line for client. */
@ -365,8 +366,9 @@ status_redraw(struct client *c)
size_t llen, rlen, seplen;
int larrow, rarrow;
/* Delete the saved status line, if any. */
status_free_old(c);
/* Shouldn't get here if not the active screen. */
if (sl->active != &sl->screen)
fatalx("not the active screen");
/* No status line? */
lines = status_line_size(c);
@ -379,9 +381,9 @@ status_redraw(struct client *c)
style_apply(&stdgc, s->options, "status-style");
/* Create the target screen. */
memcpy(&old_screen, &sl->screen, sizeof old_screen);
screen_init(&sl->screen, c->tty.sx, lines, 0);
screen_write_start(&ctx, NULL, &sl->screen);
memcpy(&old_screen, sl->active, sizeof old_screen);
screen_init(sl->active, c->tty.sx, lines, 0);
screen_write_start(&ctx, NULL, sl->active);
for (offset = 0; offset < lines * c->tty.sx; offset++)
screen_write_putc(&ctx, &stdgc, ' ');
screen_write_stop(&ctx);
@ -504,7 +506,7 @@ status_redraw(struct client *c)
draw:
/* Begin drawing. */
screen_write_start(&ctx, NULL, &sl->screen);
screen_write_start(&ctx, NULL, sl->active);
/* Draw the left string and arrow. */
screen_write_cursormove(&ctx, 0, 0, 0);
@ -563,7 +565,7 @@ out:
free(left);
free(right);
if (grid_compare(sl->screen.grid, old_screen.grid) == 0) {
if (grid_compare(sl->active->grid, old_screen.grid) == 0) {
screen_free(&old_screen);
return (0);
}
@ -634,7 +636,7 @@ status_message_set(struct client *c, const char *fmt, ...)
int delay;
status_message_clear(c);
status_save_old(c);
status_push_screen(c);
va_start(ap, fmt);
xvasprintf(&c->message_string, fmt, ap);
@ -671,7 +673,7 @@ status_message_clear(struct client *c)
c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
c->flags |= CLIENT_ALLREDRAWFLAGS; /* was frozen and may have changed */
screen_reinit(&c->status.screen);
status_pop_screen(c);
}
/* Clear status line message after timer expires. */
@ -687,23 +689,22 @@ status_message_callback(__unused int fd, __unused short event, void *data)
int
status_message_redraw(struct client *c)
{
struct screen_write_ctx ctx;
struct session *s = c->session;
struct screen old_status;
size_t len;
struct grid_cell gc;
u_int lines, offset;
struct status_line *sl = &c->status;
struct screen_write_ctx ctx;
struct session *s = c->session;
struct screen old_screen;
size_t len;
u_int lines, offset;
struct grid_cell gc;
if (c->tty.sx == 0 || c->tty.sy == 0)
return (0);
memcpy(&old_status, &c->status.screen, sizeof old_status);
memcpy(&old_screen, sl->active, sizeof old_screen);
lines = status_line_size(c);
if (lines <= 1) {
if (lines <= 1)
lines = 1;
screen_init(&c->status.screen, c->tty.sx, 1, 0);
} else
screen_init(&c->status.screen, c->tty.sx, lines, 0);
screen_init(sl->active, c->tty.sx, 1, 0);
len = screen_write_strlen("%s", c->message_string);
if (len > c->tty.sx)
@ -711,7 +712,7 @@ status_message_redraw(struct client *c)
style_apply(&gc, s->options, "message-style");
screen_write_start(&ctx, NULL, &c->status.screen);
screen_write_start(&ctx, NULL, sl->active);
screen_write_cursormove(&ctx, 0, 0, 0);
for (offset = 0; offset < lines * c->tty.sx; offset++)
screen_write_putc(&ctx, &gc, ' ');
@ -719,11 +720,11 @@ status_message_redraw(struct client *c)
screen_write_nputs(&ctx, len, &gc, "%s", c->message_string);
screen_write_stop(&ctx);
if (grid_compare(c->status.screen.grid, old_status.grid) == 0) {
screen_free(&old_status);
if (grid_compare(sl->active->grid, old_screen.grid) == 0) {
screen_free(&old_screen);
return (0);
}
screen_free(&old_status);
screen_free(&old_screen);
return (1);
}
@ -747,7 +748,7 @@ status_prompt_set(struct client *c, const char *msg, const char *input,
status_message_clear(c);
status_prompt_clear(c);
status_save_old(c);
status_push_screen(c);
c->prompt_string = format_expand_time(ft, msg);
@ -799,7 +800,7 @@ status_prompt_clear(struct client *c)
c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
c->flags |= CLIENT_ALLREDRAWFLAGS; /* was frozen and may have changed */
screen_reinit(&c->status.screen);
status_pop_screen(c);
}
/* Update status line prompt with a new prompt string. */
@ -833,23 +834,22 @@ status_prompt_update(struct client *c, const char *msg, const char *input)
int
status_prompt_redraw(struct client *c)
{
struct status_line *sl = &c->status;
struct screen_write_ctx ctx;
struct session *s = c->session;
struct screen old_status;
u_int i, offset, left, start, pcursor, pwidth, width;
u_int lines;
struct screen old_screen;
u_int i, lines, offset, left, start, width;
u_int pcursor, pwidth;
struct grid_cell gc, cursorgc;
if (c->tty.sx == 0 || c->tty.sy == 0)
return (0);
memcpy(&old_status, &c->status.screen, sizeof old_status);
memcpy(&old_screen, sl->active, sizeof old_screen);
lines = status_line_size(c);
if (lines <= 1) {
if (lines <= 1)
lines = 1;
screen_init(&c->status.screen, c->tty.sx, 1, 0);
} else
screen_init(&c->status.screen, c->tty.sx, lines, 0);
screen_init(sl->active, c->tty.sx, lines, 0);
if (c->prompt_mode == PROMPT_COMMAND)
style_apply(&gc, s->options, "message-command-style");
@ -863,7 +863,7 @@ status_prompt_redraw(struct client *c)
if (start > c->tty.sx)
start = c->tty.sx;
screen_write_start(&ctx, NULL, &c->status.screen);
screen_write_start(&ctx, NULL, sl->active);
screen_write_cursormove(&ctx, 0, 0, 0);
for (offset = 0; offset < lines * c->tty.sx; offset++)
screen_write_putc(&ctx, &gc, ' ');
@ -909,18 +909,17 @@ status_prompt_redraw(struct client *c)
screen_write_cell(&ctx, &cursorgc);
}
}
if (c->status.screen.cx < screen_size_x(&c->status.screen) &&
c->prompt_index >= i)
if (sl->active->cx < screen_size_x(sl->active) && c->prompt_index >= i)
screen_write_putc(&ctx, &cursorgc, ' ');
finished:
screen_write_stop(&ctx);
if (grid_compare(c->status.screen.grid, old_status.grid) == 0) {
screen_free(&old_status);
if (grid_compare(sl->active->grid, old_screen.grid) == 0) {
screen_free(&old_screen);
return (0);
}
screen_free(&old_status);
screen_free(&old_screen);
return (1);
}

3
tmux.h
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@ -1315,7 +1315,8 @@ struct status_line {
struct event timer;
struct screen screen;
struct screen *old_screen;
struct screen *active;
int references;
int window_list_offset;

5
window-client.c
View File

@ -229,10 +229,7 @@ window_client_draw(__unused void *modedata, void *itemdata,
screen_write_hline(ctx, sx, 0, 0);
screen_write_cursormove(ctx, cx, cy + sy - 1, 0);
if (c->status.old_screen != NULL)
screen_write_fast_copy(ctx, c->status.old_screen, 0, 0, sx, 1);
else
screen_write_fast_copy(ctx, &c->status.screen, 0, 0, sx, 1);
screen_write_fast_copy(ctx, &c->status.screen, 0, 0, sx, 1);
}
static struct screen *