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perf(extmarks): avoid unnecessary marktree traversal with folds

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(cherry picked from commit 3fc4da17df)
This commit is contained in:
zeertzjq
2023-07-11 08:30:33 +08:00
committed by github-actions[bot]
parent 160bdee527
commit 541439b4ab
1 changed files with 18 additions and 10 deletions
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28
src/nvim/decoration.c
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@@ -576,26 +576,34 @@ int decor_virt_lines(win_T *wp, linenr_T lnum, VirtLines *lines, TriState has_fo
return 0; return 0;
} }
int virt_lines = 0; assert(lnum > 0);
int row = MAX(lnum - 2, 0);
int end_row = (int)lnum;
MarkTreeIter itr[1] = { 0 };
marktree_itr_get(buf->b_marktree, row, 0, itr);
bool below_fold = lnum > 1 && hasFoldingWin(wp, lnum - 1, NULL, NULL, true, NULL); bool below_fold = lnum > 1 && hasFoldingWin(wp, lnum - 1, NULL, NULL, true, NULL);
if (has_fold == kNone) { if (has_fold == kNone) {
has_fold = hasFoldingWin(wp, lnum, NULL, NULL, true, NULL); has_fold = hasFoldingWin(wp, lnum, NULL, NULL, true, NULL);
} }
const int row = lnum - 1;
const int start_row = below_fold ? row : MAX(row - 1, 0);
const int end_row = has_fold ? row : row + 1;
if (start_row >= end_row) {
return 0;
}
int virt_lines = 0;
MarkTreeIter itr[1] = { 0 };
marktree_itr_get(buf->b_marktree, start_row, 0, itr);
while (true) { while (true) {
mtkey_t mark = marktree_itr_current(itr); mtkey_t mark = marktree_itr_current(itr);
if (mark.pos.row < 0 || mark.pos.row >= end_row) { if (mark.pos.row < 0 || mark.pos.row >= end_row) {
break; break;
} else if (mt_end(mark) || marktree_decor_level(mark) < kDecorLevelVirtLine) { } else if (mt_end(mark)
|| marktree_decor_level(mark) < kDecorLevelVirtLine
|| !mark.decor_full) {
goto next_mark; goto next_mark;
} }
bool above = mark.pos.row > (lnum - 2); Decoration *const decor = mark.decor_full;
bool has_fold_cur = above ? has_fold : below_fold; const int draw_row = mark.pos.row + (decor->virt_lines_above ? 0 : 1);
Decoration *decor = mark.decor_full; if (draw_row == row) {
if (!has_fold_cur && decor && decor->virt_lines_above == above) {
virt_lines += (int)kv_size(decor->virt_lines); virt_lines += (int)kv_size(decor->virt_lines);
if (lines) { if (lines) {
kv_splice(*lines, decor->virt_lines); kv_splice(*lines, decor->virt_lines);