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sixel: delete/split: early(ier) exit when there aren't in sixel images

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Avoid unnecessary wrap checks if the sixel image list is empty.
This commit is contained in:
Daniel Eklöf 2020-06-27 14:43:29 +02:00
parent a25ff1ed84
commit 0953ffd2d3
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GPG key ID: 5BBD4992C116573F
2 changed files with 20 additions and 10 deletions
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25
sixel.c
View file

@ -118,9 +118,13 @@ sixel_delete_at_point(struct terminal *term, int row, int col)
}
}
/* TODO: remove */
void
sixel_delete_at_row(struct terminal *term, int row)
{
if (likely(tll_length(term->grid->sixel_images) == 0))
return;
sixel_delete_at_point(
term, (term->grid->offset + row) & (term->grid->num_rows - 1), -1);
}
@ -135,12 +139,6 @@ _sixel_delete_in_range(struct terminal *term, int start, int end)
assert(end >= 0);
assert(end < term->grid->num_rows);
if (likely(tll_length(term->grid->sixel_images) == 0))
return;
if (start == end)
return sixel_delete_at_point(term, start, -1);
tll_foreach(term->grid->sixel_images, it) {
struct sixel *six = &it->item;
@ -163,6 +161,15 @@ _sixel_delete_in_range(struct terminal *term, int start, int end)
void
sixel_delete_in_range(struct terminal *term, int _start, int _end)
{
if (likely(tll_length(term->grid->sixel_images) == 0))
return;
if (_start == _end) {
/* Avoid expensive wrap calculation */
return sixel_delete_at_point(
term, (term->grid->offset + _start) & (term->grid->num_rows - 1), -1);
}
assert(_end >= _start);
const int lines = _end - _start + 1;
const int start = (term->grid->offset + _start) & (term->grid->num_rows - 1);
@ -293,9 +300,6 @@ _sixel_split_by_rectangle(
assert(col >= 0);
assert(col + width <= term->grid->num_cols);
if (likely(tll_length(term->grid->sixel_images) == 0))
return;
/* We don't handle rectangle wrapping around */
assert(row + height <= term->grid->num_rows);
@ -334,6 +338,9 @@ static void
sixel_split_by_rectangle(
struct terminal *term, int _row, int col, int height, int width)
{
if (likely(tll_length(term->grid->sixel_images) == 0))
return;
const int start = (term->grid->offset + _row) & (term->grid->num_rows - 1);
const int end = (start + height - 1) & (term->grid->num_rows - 1);
const bool wraps = end < start;

5
terminal.c
View file

@ -1599,6 +1599,8 @@ term_erase(struct terminal *term, const struct coord *start, const struct coord
if (start->row == end->row) {
struct row *row = grid_row(term->grid, start->row);
erase_cell_range(term, row, start->col, end->col);
/* TODO: split instead */
sixel_delete_at_row(term, start->row);
return;
}
@ -1612,6 +1614,8 @@ term_erase(struct terminal *term, const struct coord *start, const struct coord
erase_line(term, grid_row(term->grid, r));
erase_cell_range(term, grid_row(term->grid, end->row), 0, end->col);
/* TODO: split instead */
sixel_delete_in_range(term, start->row, end->row);
}
@ -2381,7 +2385,6 @@ term_print(struct terminal *term, wchar_t wc, int width)
print_linewrap(term);
print_insert(term, width);
//sixel_delete_at_cursor(term);
sixel_split_at_cursor(term);
/* *Must* get current cell *after* linewrap+insert */