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Add some logging.

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This commit is contained in:
Nicholas Marriott
2026-06-16 23:17:28 +01:00
parent b7fa115aab
commit 9212ecea84
1 changed files with 50 additions and 7 deletions
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57
screen-redraw.c
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@@ -197,6 +197,32 @@ struct redraw_draw_ctx {
#define REDRAW_STATUS_TOP 0x4
};
/* Make redraw flags into a string. */
static const char *
screen_redraw_flags_string(int flags)
{
static char s[128];
*s = '\0';
if (flags & REDRAW_STATUS)
strlcat(s, "status ", sizeof s);
if (flags & REDRAW_PANE)
strlcat(s, "pane ", sizeof s);
if (flags & REDRAW_PANE_BORDER)
strlcat(s, "border ", sizeof s);
if (flags & REDRAW_PANE_STATUS)
strlcat(s, "pane-status ", sizeof s);
if (flags & REDRAW_PANE_SCROLLBAR)
strlcat(s, "scrollbar ", sizeof s);
if (flags & REDRAW_OVERLAY)
strlcat(s, "overlay ", sizeof s);
if (REDRAW_IS_ALL(flags))
strlcat(s, "all ", sizeof s);
if (*s != '\0')
s[strlen(s) - 1] = '\0';
return (s);
}
/* Initialize the context for building scene. */
static void
screen_redraw_set_context(struct client *c, struct redraw_build_ctx *bctx)
@@ -826,6 +852,9 @@ screen_redraw_make_scene(struct client *c)
scene->ox = bctx.ox;
scene->oy = bctx.oy;
log_debug("%s: starting @%u scene build (%ux%u %u,%u, generation %llu)",
c->name, scene->w->id, scene->sx, scene->sy, scene->ox, scene->oy,
(unsigned long long)scene->generation);
scene->lines = xcalloc(scene->sy, sizeof *scene->lines);
for (y = 0; y < scene->sy; y++) {
for (type = 0; type < REDRAW_SPAN_TYPES; type++)
@@ -848,6 +877,7 @@ screen_redraw_make_scene(struct client *c)
screen_redraw_mark_two_pane_colours(&bctx);
screen_redraw_finish_scene(&bctx, scene);
log_debug("%s: finished @%u scene build", c->name, scene->w->id);
free(bctx.cells);
return (scene);
@@ -900,16 +930,22 @@ screen_redraw_get_scene(struct client *c)
{
struct redraw_scene *scene = c->redraw_scene;
struct window *w = c->session->curw->window;
const char *reason = NULL;
u_int ox, oy, sx, sy;
tty_window_offset(&c->tty, &ox, &oy, &sx, &sy);
if (scene == NULL ||
scene->w != w ||
scene->generation != w->redraw_scene_generation ||
scene->ox != ox ||
scene->oy != oy ||
scene->sx != sx ||
scene->sy != sy) {
if (scene == NULL)
reason = "missing";
else if (scene->w != w)
reason = "window changed";
else if (scene->generation != w->redraw_scene_generation)
reason = "generation changed";
else if (scene->ox != ox || scene->oy != oy)
reason = "offset changed";
else if (scene->sx != sx || scene->sy != sy)
reason = "size changed";
if (reason != NULL) {
log_debug("%s: @%u scene invalid: %s", c->name, w->id, reason);
screen_redraw_free_scene(scene);
scene = screen_redraw_make_scene(c);
c->redraw_scene = scene;
@@ -1400,6 +1436,8 @@ static void
screen_redraw_draw(struct client *c, struct window_pane *wp, int flags)
{
struct redraw_draw_ctx dctx;
struct session *s = c->session;
struct window *w = s->curw->window;
struct tty *tty = &c->tty;
struct screen *sl;
struct redraw_scene *scene;
@@ -1425,6 +1463,9 @@ screen_redraw_draw(struct client *c, struct window_pane *wp, int flags)
}
}
log_debug("%s: starting @%u redraw (%s)", c->name, w->id,
screen_redraw_flags_string(flags));
scene = screen_redraw_get_scene(c);
if (scene == NULL)
return;
@@ -1503,6 +1544,8 @@ screen_redraw_draw(struct client *c, struct window_pane *wp, int flags)
tty_reset(tty);
tty_sync_end(tty);
log_debug("%s: finished @%u redraw", c->name, scene->w->id);
}
/* Get cell type for offset from span. */