From 716233534b35f74dba5a46ade8f1a6f8cc72fea4 Mon Sep 17 00:00:00 2001 From: Miles Alan Date: Mon, 9 Aug 2021 18:24:14 +0200 Subject: 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. --- drw.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'drw.c') diff --git a/drw.c b/drw.c index 4cdbcbe..9c39086 100644 --- a/drw.c +++ b/drw.c @@ -310,8 +310,11 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp if (utf8strlen) { drw_font_getexts(usedfont, utf8str, utf8strlen, &ew, NULL); /* shorten text if necessary */ - for (len = MIN(utf8strlen, sizeof(buf) - 1); len && ew > w; len--) - drw_font_getexts(usedfont, utf8str, len, &ew, NULL); + if (ew > w) + for (ew = 0, len = 0; ew < w - lpad * 2 && len < MIN(utf8strlen, sizeof(buf) - 1); len++) + drw_font_getexts(usedfont, utf8str, len, &ew, NULL); + else + len = MIN(utf8strlen, sizeof(buf) - 1); if (len) { memcpy(buf, utf8str, len); -- cgit v1.2.3-13-gbd6f From a786211d6cb794fba0ea406d86002c7618998afc Mon Sep 17 00:00:00 2001 From: Hiltjo Posthuma Date: Fri, 20 Aug 2021 23:09:48 +0200 Subject: Revert "Improve speed of drw_text when provided with large strings" This reverts commit 716233534b35f74dba5a46ade8f1a6f8cc72fea4. It causes issues with truncation of characters when the text does not fit and so on. The patch should be reworked and properly tested. --- drw.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) (limited to 'drw.c') diff --git a/drw.c b/drw.c index 9c39086..4cdbcbe 100644 --- a/drw.c +++ b/drw.c @@ -310,11 +310,8 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp if (utf8strlen) { drw_font_getexts(usedfont, utf8str, utf8strlen, &ew, NULL); /* shorten text if necessary */ - if (ew > w) - for (ew = 0, len = 0; ew < w - lpad * 2 && len < MIN(utf8strlen, sizeof(buf) - 1); len++) - drw_font_getexts(usedfont, utf8str, len, &ew, NULL); - else - len = MIN(utf8strlen, sizeof(buf) - 1); + for (len = MIN(utf8strlen, sizeof(buf) - 1); len && ew > w; len--) + drw_font_getexts(usedfont, utf8str, len, &ew, NULL); if (len) { memcpy(buf, utf8str, len); -- cgit v1.2.3-13-gbd6f From d3f93c7c1a13a2a78f04fb41ad1935525df948db Mon Sep 17 00:00:00 2001 From: Hiltjo Posthuma Date: Tue, 10 May 2022 19:07:56 +0200 Subject: sync latest drw.{c,h} changes from dmenu --- drw.c | 88 ++++++++++++++++++++++++++++++++++++++++++++----------------------- 1 file changed, 58 insertions(+), 30 deletions(-) (limited to 'drw.c') diff --git a/drw.c b/drw.c index 4cdbcbe..ced7d37 100644 --- a/drw.c +++ b/drw.c @@ -251,12 +251,10 @@ drw_rect(Drw *drw, int x, int y, unsigned int w, unsigned int h, int filled, int int drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lpad, const char *text, int invert) { - char buf[1024]; - int ty; - unsigned int ew; + int i, ty, ellipsis_x = 0; + unsigned int tmpw, ew, ellipsis_w = 0, ellipsis_len; XftDraw *d = NULL; Fnt *usedfont, *curfont, *nextfont; - size_t i, len; int utf8strlen, utf8charlen, render = x || y || w || h; long utf8codepoint = 0; const char *utf8str; @@ -264,13 +262,17 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp FcPattern *fcpattern; FcPattern *match; XftResult result; - int charexists = 0; + int charexists = 0, overflow = 0; + /* keep track of a couple codepoints for which we have no match. */ + enum { nomatches_len = 64 }; + static struct { long codepoint[nomatches_len]; unsigned int idx; } nomatches; + static unsigned int ellipsis_width = 0; - if (!drw || (render && !drw->scheme) || !text || !drw->fonts) + if (!drw || (render && (!drw->scheme || !w)) || !text || !drw->fonts) return 0; if (!render) { - w = ~w; + w = invert ? invert : ~invert; } else { XSetForeground(drw->dpy, drw->gc, drw->scheme[invert ? ColFg : ColBg].pixel); XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h); @@ -282,8 +284,10 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp } usedfont = drw->fonts; + if (!ellipsis_width && render) + ellipsis_width = drw_fontset_getwidth(drw, "..."); while (1) { - utf8strlen = 0; + ew = ellipsis_len = utf8strlen = 0; utf8str = text; nextfont = NULL; while (*text) { @@ -291,9 +295,27 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp for (curfont = drw->fonts; curfont; curfont = curfont->next) { charexists = charexists || XftCharExists(drw->dpy, curfont->xfont, utf8codepoint); if (charexists) { - if (curfont == usedfont) { + drw_font_getexts(curfont, text, utf8charlen, &tmpw, NULL); + if (ew + ellipsis_width <= w) { + /* keep track where the ellipsis still fits */ + ellipsis_x = x + ew; + ellipsis_w = w - ew; + ellipsis_len = utf8strlen; + } + + if (ew + tmpw > w) { + overflow = 1; + /* called from drw_fontset_getwidth_clamp(): + * it wants the width AFTER the overflow + */ + if (!render) + x += tmpw; + else + utf8strlen = ellipsis_len; + } else if (curfont == usedfont) { utf8strlen += utf8charlen; text += utf8charlen; + ew += tmpw; } else { nextfont = curfont; } @@ -301,36 +323,25 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp } } - if (!charexists || nextfont) + if (overflow || !charexists || nextfont) break; else charexists = 0; } if (utf8strlen) { - drw_font_getexts(usedfont, utf8str, utf8strlen, &ew, NULL); - /* shorten text if necessary */ - for (len = MIN(utf8strlen, sizeof(buf) - 1); len && ew > w; len--) - drw_font_getexts(usedfont, utf8str, len, &ew, NULL); - - if (len) { - memcpy(buf, utf8str, len); - buf[len] = '\0'; - if (len < utf8strlen) - for (i = len; i && i > len - 3; buf[--i] = '.') - ; /* NOP */ - - if (render) { - ty = y + (h - usedfont->h) / 2 + usedfont->xfont->ascent; - XftDrawStringUtf8(d, &drw->scheme[invert ? ColBg : ColFg], - usedfont->xfont, x, ty, (XftChar8 *)buf, len); - } - x += ew; - w -= ew; + if (render) { + ty = y + (h - usedfont->h) / 2 + usedfont->xfont->ascent; + XftDrawStringUtf8(d, &drw->scheme[invert ? ColBg : ColFg], + usedfont->xfont, x, ty, (XftChar8 *)utf8str, utf8strlen); } + x += ew; + w -= ew; } + if (render && overflow) + drw_text(drw, ellipsis_x, y, ellipsis_w, h, 0, "...", invert); - if (!*text) { + if (!*text || overflow) { break; } else if (nextfont) { charexists = 0; @@ -340,6 +351,12 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp * character must be drawn. */ charexists = 1; + for (i = 0; i < nomatches_len; ++i) { + /* avoid calling XftFontMatch if we know we won't find a match */ + if (utf8codepoint == nomatches.codepoint[i]) + goto no_match; + } + fccharset = FcCharSetCreate(); FcCharSetAddChar(fccharset, utf8codepoint); @@ -368,6 +385,8 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp curfont->next = usedfont; } else { xfont_free(usedfont); + nomatches.codepoint[++nomatches.idx % nomatches_len] = utf8codepoint; +no_match: usedfont = drw->fonts; } } @@ -397,6 +416,15 @@ drw_fontset_getwidth(Drw *drw, const char *text) return drw_text(drw, 0, 0, 0, 0, 0, text, 0); } +unsigned int +drw_fontset_getwidth_clamp(Drw *drw, const char *text, unsigned int n) +{ + unsigned int tmp = 0; + if (drw && drw->fonts && text && n) + tmp = drw_text(drw, 0, 0, 0, 0, 0, text, n); + return MIN(n, tmp); +} + void drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h) { -- cgit v1.2.3-13-gbd6f From 970f37697358574e127019eb0ee2f5725ec05ce0 Mon Sep 17 00:00:00 2001 From: Hiltjo Posthuma Date: Fri, 16 Sep 2022 23:06:47 +0200 Subject: remove workaround for a crash with color emojis on some systems, now fixed in libXft 2.3.5 https://gitlab.freedesktop.org/xorg/lib/libxft/-/blob/libXft-2.3.5/NEWS --- drw.c | 14 -------------- 1 file changed, 14 deletions(-) (limited to 'drw.c') diff --git a/drw.c b/drw.c index ced7d37..a58a2b4 100644 --- a/drw.c +++ b/drw.c @@ -133,19 +133,6 @@ xfont_create(Drw *drw, const char *fontname, FcPattern *fontpattern) die("no font specified."); } - /* Do not allow using color fonts. This is a workaround for a BadLength - * error from Xft with color glyphs. Modelled on the Xterm workaround. See - * https://bugzilla.redhat.com/show_bug.cgi?id=1498269 - * https://lists.suckless.org/dev/1701/30932.html - * https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=916349 - * and lots more all over the internet. - */ - FcBool iscol; - if(FcPatternGetBool(xfont->pattern, FC_COLOR, 0, &iscol) == FcResultMatch && iscol) { - XftFontClose(drw->dpy, xfont); - return NULL; - } - font = ecalloc(1, sizeof(Fnt)); font->xfont = xfont; font->pattern = pattern; @@ -368,7 +355,6 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp fcpattern = FcPatternDuplicate(drw->fonts->pattern); FcPatternAddCharSet(fcpattern, FC_CHARSET, fccharset); FcPatternAddBool(fcpattern, FC_SCALABLE, FcTrue); - FcPatternAddBool(fcpattern, FC_COLOR, FcFalse); FcConfigSubstitute(NULL, fcpattern, FcMatchPattern); FcDefaultSubstitute(fcpattern); -- cgit v1.2.3-13-gbd6f