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terminal: maintain dirty bits when rotating rows on clone

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This commit is contained in:
Mitchell Hashimoto
2024-05-07 10:36:54 -07:00
parent 165c2d9056
commit f975861891
1 changed files with 6 additions and 0 deletions
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6
src/terminal/PageList.zig
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@ -473,6 +473,11 @@ pub fn clone(
continue;
}
// We want to maintain the dirty bits from the original page so
// instead of setting a range we grab the dirty bit and then
// set it on the new page in the new location.
var dirty = page.data.dirtyBitSet();
// Kind of slow, we want to shift the rows up in the page up to
// end and then resize down.
const rows = page.data.rows.ptr(page.data.memory);
@ -483,6 +488,7 @@ pub fn clone(
const old_dst = dst.*;
dst.* = src.*;
src.* = old_dst;
dirty.setValue(i, dirty.isSet(i + chunk.start));
}
page.data.size.rows = @intCast(len);
total_rows += len;