Improve speed of drw_text when provided with large strings
Calculates len & ew in drw_font_getexts loop by incrementing instead of decrementing; as such avoids proportional increase in time spent in loop based on provided strings size.
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7
drw.c
7
drw.c
@ -310,8 +310,11 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
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if (utf8strlen) {
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drw_font_getexts(usedfont, utf8str, utf8strlen, &ew, NULL);
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/* shorten text if necessary */
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for (len = MIN(utf8strlen, sizeof(buf) - 1); len && ew > w; len--)
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drw_font_getexts(usedfont, utf8str, len, &ew, NULL);
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if (ew > w)
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for (ew = 0, len = 0; ew < w - lpad * 2 && len < MIN(utf8strlen, sizeof(buf) - 1); len++)
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drw_font_getexts(usedfont, utf8str, len, &ew, NULL);
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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);
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