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When an ordinary (not collected) cell is received, we need to flush any

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delayed scrolling before drawing it.
This commit is contained in:
nicm 2017-02-09 09:33:15 +00:00
parent 1811dc5271
commit fd6e46596d
1 changed files with 21 additions and 17 deletions
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38
screen-write.c
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@ -28,7 +28,7 @@ static void screen_write_initctx(struct screen_write_ctx *,
static void screen_write_collect_clear(struct screen_write_ctx *, u_int,
u_int);
static void screen_write_collect_scroll(struct screen_write_ctx *);
static void screen_write_collect_flush(struct screen_write_ctx *);
static void screen_write_collect_flush(struct screen_write_ctx *, int);
static int screen_write_overwrite(struct screen_write_ctx *,
struct grid_cell *, u_int);
@ -85,7 +85,7 @@ void
screen_write_stop(struct screen_write_ctx *ctx)
{
screen_write_collect_end(ctx);
screen_write_collect_flush(ctx);
screen_write_collect_flush(ctx, 0);
log_debug("%s: %u cells (%u written, %u skipped)", __func__,
ctx->cells, ctx->written, ctx->skipped);
@ -570,7 +570,7 @@ screen_write_insertcharacter(struct screen_write_ctx *ctx, u_int nx, u_int bg)
grid_view_insert_cells(s->grid, s->cx, s->cy, nx, bg);
screen_write_collect_flush(ctx);
screen_write_collect_flush(ctx, 0);
ttyctx.num = nx;
tty_write(tty_cmd_insertcharacter, &ttyctx);
}
@ -598,7 +598,7 @@ screen_write_deletecharacter(struct screen_write_ctx *ctx, u_int nx, u_int bg)
grid_view_delete_cells(s->grid, s->cx, s->cy, nx, bg);
screen_write_collect_flush(ctx);
screen_write_collect_flush(ctx, 0);
ttyctx.num = nx;
tty_write(tty_cmd_deletecharacter, &ttyctx);
}
@ -625,7 +625,7 @@ screen_write_clearcharacter(struct screen_write_ctx *ctx, u_int nx)
grid_view_clear(s->grid, s->cx, s->cy, nx, 1, 8);
screen_write_collect_flush(ctx);
screen_write_collect_flush(ctx, 0);
ttyctx.num = nx;
tty_write(tty_cmd_clearcharacter, &ttyctx);
}
@ -652,7 +652,7 @@ screen_write_insertline(struct screen_write_ctx *ctx, u_int ny, u_int bg)
grid_view_insert_lines(gd, s->cy, ny, bg);
screen_write_collect_flush(ctx);
screen_write_collect_flush(ctx, 0);
ttyctx.num = ny;
tty_write(tty_cmd_insertline, &ttyctx);
return;
@ -671,7 +671,7 @@ screen_write_insertline(struct screen_write_ctx *ctx, u_int ny, u_int bg)
else
grid_view_insert_lines_region(gd, s->rlower, s->cy, ny, bg);
screen_write_collect_flush(ctx);
screen_write_collect_flush(ctx, 0);
ttyctx.num = ny;
tty_write(tty_cmd_insertline, &ttyctx);
}
@ -698,7 +698,7 @@ screen_write_deleteline(struct screen_write_ctx *ctx, u_int ny, u_int bg)
grid_view_delete_lines(gd, s->cy, ny, bg);
screen_write_collect_flush(ctx);
screen_write_collect_flush(ctx, 0);
ttyctx.num = ny;
tty_write(tty_cmd_deleteline, &ttyctx);
return;
@ -717,7 +717,7 @@ screen_write_deleteline(struct screen_write_ctx *ctx, u_int ny, u_int bg)
else
grid_view_delete_lines_region(gd, s->rlower, s->cy, ny, bg);
screen_write_collect_flush(ctx);
screen_write_collect_flush(ctx, 0);
ttyctx.num = ny;
tty_write(tty_cmd_deleteline, &ttyctx);
}
@ -765,7 +765,7 @@ screen_write_clearendofline(struct screen_write_ctx *ctx, u_int bg)
if (s->cx == 0)
screen_write_collect_clear(ctx, s->cy, 1);
else
screen_write_collect_flush(ctx);
screen_write_collect_flush(ctx, 0);
tty_write(tty_cmd_clearendofline, &ttyctx);
}
@ -788,7 +788,7 @@ screen_write_clearstartofline(struct screen_write_ctx *ctx, u_int bg)
if (s->cx > sx - 1)
screen_write_collect_clear(ctx, s->cy, 1);
else
screen_write_collect_flush(ctx);
screen_write_collect_flush(ctx, 0);
tty_write(tty_cmd_clearstartofline, &ttyctx);
}
@ -821,7 +821,7 @@ screen_write_reverseindex(struct screen_write_ctx *ctx)
else if (s->cy > 0)
s->cy--;
screen_write_collect_flush(ctx);
screen_write_collect_flush(ctx, 0);
tty_write(tty_cmd_reverseindex, &ttyctx);
}
@ -839,7 +839,7 @@ screen_write_scrollregion(struct screen_write_ctx *ctx, u_int rupper,
if (rupper >= rlower) /* cannot be one line */
return;
screen_write_collect_flush(ctx);
screen_write_collect_flush(ctx, 0);
/* Cursor moves to top-left. */
s->cx = 0;
@ -922,7 +922,7 @@ screen_write_clearendofscreen(struct screen_write_ctx *ctx, u_int bg)
}
screen_write_collect_clear(ctx, s->cy + 1, sy - (s->cy + 1));
screen_write_collect_flush(ctx);
screen_write_collect_flush(ctx, 0);
tty_write(tty_cmd_clearendofscreen, &ttyctx);
}
@ -945,7 +945,7 @@ screen_write_clearstartofscreen(struct screen_write_ctx *ctx, u_int bg)
grid_view_clear(s->grid, 0, s->cy, s->cx + 1, 1, 8);
screen_write_collect_clear(ctx, 0, s->cy);
screen_write_collect_flush(ctx);
screen_write_collect_flush(ctx, 0);
tty_write(tty_cmd_clearstartofscreen, &ttyctx);
}
@ -1021,7 +1021,7 @@ screen_write_collect_scroll(struct screen_write_ctx *ctx)
/* Flush collected lines. */
static void
screen_write_collect_flush(struct screen_write_ctx *ctx)
screen_write_collect_flush(struct screen_write_ctx *ctx, int scroll_only)
{
struct screen *s = ctx->s;
struct screen_write_collect_item *ci, *tmp;
@ -1039,6 +1039,8 @@ screen_write_collect_flush(struct screen_write_ctx *ctx)
tty_write(tty_cmd_scrollup, &ttyctx);
}
ctx->scrolled = 0;
if (scroll_only)
return;
cx = s->cx; cy = s->cy;
for (y = 0; y < screen_size_y(s); y++) {
@ -1151,6 +1153,9 @@ screen_write_cell(struct screen_write_ctx *ctx, const struct grid_cell *gc)
return;
ctx->cells++;
/* Flush any existing scrolling. */
screen_write_collect_flush(ctx, 1);
/* If the width is zero, combine onto the previous character. */
if (width == 0) {
if ((gc = screen_write_combine(ctx, &gc->data, &xx)) != 0) {
@ -1254,7 +1259,6 @@ screen_write_cell(struct screen_write_ctx *ctx, const struct grid_cell *gc)
/* Create space for character in insert mode. */
if (s->mode & MODE_INSERT) {
screen_write_collect_flush(ctx);
ttyctx.num = width;
tty_write(tty_cmd_insertcharacter, &ttyctx);
}