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grid: reflow: free old rows as soon as we’re done with them

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This reduces the memory cost of reflowing text, as we no longer needs
to hold both the old and the new grid, in their entirety, in memory at
the same time.
This commit is contained in:
Daniel Eklöf 2021-05-16 10:11:41 +02:00
parent 11c7990ec8
commit 1aa4a31c6f
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GPG key ID: 5BBD4992C116573F
1 changed files with 8 additions and 3 deletions
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11
grid.c
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@ -655,6 +655,9 @@ grid_resize_and_reflow(
line_wrap();
}
grid_row_free(old_grid[old_row_idx]);
grid->rows[old_row_idx] = NULL;
#undef print_spacer
#undef line_wrap
}
@ -678,6 +681,10 @@ grid_resize_and_reflow(
tll_foreach(row->extra->uri_ranges, it)
xassert(it->item.end >= 0);
}
/* Verify all old rows have been free:d */
for (int i = 0; i < old_rows; i++)
xassert(grid->rows[i] == NULL);
#endif
/* Set offset such that the last reflowed row is at the bottom */
@ -711,9 +718,7 @@ grid_resize_and_reflow(
xassert(new_grid[idx] != NULL);
}
/* Free old grid */
for (int r = 0; r < grid->num_rows; r++)
grid_row_free(old_grid[r]);
/* Free old grid (rows already free:d) */
free(grid->rows);
grid->rows = new_grid;