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Improve speed of drw_text when provided with large strings - dwm - dynamic wind… |
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git clone git://git.suckless.org/dwm |
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commit 716233534b35f74dba5a46ade8f1a6f8cc72fea4 |
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parent 138b405f0c8aa24d8a040cc1a1cf6e3eb5a0ebc7 |
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Author: Miles Alan <[email protected]> |
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Date: Mon, 9 Aug 2021 18:24:14 +0200 |
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Improve speed of drw_text when provided with large strings |
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Calculates len & ew in drw_font_getexts loop by incrementing instead of |
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decrementing; as such avoids proportional increase in time spent in loop |
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based on provided strings size. |
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Diffstat: |
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M drw.c | 7 +++++-- |
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1 file changed, 5 insertions(+), 2 deletions(-) |
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--- |
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diff --git a/drw.c b/drw.c |
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@@ -310,8 +310,11 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned … |
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if (utf8strlen) { |
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drw_font_getexts(usedfont, utf8str, utf8strlen, &ew, N… |
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/* shorten text if necessary */ |
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- for (len = MIN(utf8strlen, sizeof(buf) - 1); len && ew… |
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- drw_font_getexts(usedfont, utf8str, len, &ew, … |
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+ if (ew > w) |
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+ for (ew = 0, len = 0; ew < w - lpad * 2 && len… |
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+ drw_font_getexts(usedfont, utf8str, le… |
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+ else |
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+ len = MIN(utf8strlen, sizeof(buf) - 1); |
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if (len) { |
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memcpy(buf, utf8str, len); |
