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perf: reuse fast character size calculation algorithm from getvcol()

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VanaIgr
2023-12-18 20:57:04 -06:00
committed by zeertzjq
parent b5653984e5
commit cdf848a314
10 changed files with 497 additions and 477 deletions
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21
src/nvim/mouse.c
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@@ -1755,22 +1755,23 @@ colnr_T vcol2col(win_T *wp, linenr_T lnum, colnr_T vcol, colnr_T *coladdp)
{
// try to advance to the specified column
char *line = ml_get_buf(wp->w_buffer, lnum);
chartabsize_T cts;
init_chartabsize_arg(&cts, wp, lnum, 0, line, line);
while (cts.cts_vcol < vcol && *cts.cts_ptr != NUL) {
int size = win_lbr_chartabsize(&cts, NULL);
if (cts.cts_vcol + size > vcol) {
CharsizeArg arg;
CSType cstype = init_charsize_arg(&arg, wp, lnum, line);
StrCharInfo ci = utf_ptr2StrCharInfo(line);
int cur_vcol = 0;
while (cur_vcol < vcol && *ci.ptr != NUL) {
int next_vcol = cur_vcol + win_charsize(cstype, cur_vcol, ci.ptr, ci.chr.value, &arg).width;
if (next_vcol > vcol) {
break;
}
cts.cts_vcol += size;
MB_PTR_ADV(cts.cts_ptr);
cur_vcol = next_vcol;
ci = utfc_next(ci);
}
clear_chartabsize_arg(&cts);
if (coladdp != NULL) {
*coladdp = vcol - cts.cts_vcol;
*coladdp = vcol - cur_vcol;
}
return (colnr_T)(cts.cts_ptr - line);
return (colnr_T)(ci.ptr - line);
}
/// Set UI mouse depending on current mode and 'mouse'.