Speeding up the drawing, then all characters are known.

master
Christoph Lohmann 12 years ago
parent 9c44229c62
commit addc848345

88
st.c

@ -437,7 +437,7 @@ typedef struct {
*/ */
static Fontcache frc[256]; static Fontcache frc[256];
static int frccur = 0, frclen = 0; static int frccur = -1, frclen = 0;
ssize_t ssize_t
xwrite(int fd, char *s, size_t len) { xwrite(int fd, char *s, size_t len) {
@ -2410,7 +2410,7 @@ xunloadfonts(void)
ip = LEN(frc) - 1; ip = LEN(frc) - 1;
XftFontClose(xw.dpy, frc[ip].font); XftFontClose(xw.dpy, frc[ip].font);
} }
frccur = 0; frccur = -1;
frclen = 0; frclen = 0;
XftFontClose(xw.dpy, dc.font.match); XftFontClose(xw.dpy, dc.font.match);
@ -2532,11 +2532,12 @@ xinit(void) {
void void
xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) { xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
int winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch, int winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch,
width = charlen * xw.cw, u8clen, xp, i, frp, frcflags; width = charlen * xw.cw, xp, i;
int frp, frcflags;
int u8fl, u8fblen, u8cblen, doesexist;
char *u8c, *u8fs;
long u8char; long u8char;
char *u8c;
Font *font = &dc.font; Font *font = &dc.font;
XftFont *sfont;
FcResult fcres; FcResult fcres;
FcPattern *fcpattern, *fontpattern; FcPattern *fcpattern, *fontpattern;
FcFontSet *fcsets[] = { NULL }; FcFontSet *fcsets[] = { NULL };
@ -2608,11 +2609,6 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
bg = temp; bg = temp;
} }
/* Width of the whole string that should be printed. */
XftTextExtentsUtf8(xw.dpy, font->match, (FcChar8 *)s, bytelen,
&extents);
width = extents.xOff;
/* Intelligent cleaning up of the borders. */ /* Intelligent cleaning up of the borders. */
if(x == 0) { if(x == 0) {
xclear(0, (y == 0)? 0 : winy, borderpx, xclear(0, (y == 0)? 0 : winy, borderpx,
@ -2630,24 +2626,49 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
/* Clean up the region we want to draw to. */ /* Clean up the region we want to draw to. */
XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch); XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
/*
* Step through all UTF-8 characters one by one and search in the font
* cache ring buffer, whether there was some font found to display the
* unicode value of that UTF-8 character.
*/
fcsets[0] = font->set; fcsets[0] = font->set;
for (xp = winx; bytelen > 0;) { for (xp = winx; bytelen > 0;) {
u8c = s;
u8clen = utf8decode(s, &u8char);
s += u8clen;
bytelen -= u8clen;
sfont = font->match;
/* /*
* Only check the font cache or load new fonts, if the * Search for the range in the to be printed string of glyphs
* characters is not represented in main font. * that are in the main font. Then print that range. If
* some glyph is found that is not in the font, do the
* fallback dance.
*/ */
if (!XftCharExists(xw.dpy, font->match, u8char)) { u8fs = s;
u8fblen = 0;
u8fl = 0;
for (;;) {
u8c = s;
u8cblen = utf8decode(s, &u8char);
s += u8cblen;
bytelen -= u8cblen;
doesexist = XftCharIndex(xw.dpy, font->match, u8char);
if (!doesexist || bytelen <= 0) {
if (bytelen <= 0) {
if (doesexist) {
u8fl++;
u8fblen += u8cblen;
}
}
if (u8fl > 0) {
XftDrawStringUtf8(xw.draw, fg,
font->match, xp,
winy + font->ascent,
(FcChar8 *)u8fs,
u8fblen);
xp += font->width * u8fl;
}
break;
}
u8fl++;
u8fblen += u8cblen;
}
if (doesexist)
break;
frp = frccur; frp = frccur;
/* Search the font cache. */ /* Search the font cache. */
for (i = 0; i < frclen; i++, frp--) { for (i = 0; i < frclen; i++, frp--) {
@ -2659,6 +2680,8 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
break; break;
} }
} }
/* Nothing was found. */
if (i >= frclen) { if (i >= frclen) {
/* /*
* Nothing was found in the cache. Now use * Nothing was found in the cache. Now use
@ -2681,19 +2704,19 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
fontpattern = FcFontSetMatch(0, fcsets, fontpattern = FcFontSetMatch(0, fcsets,
FcTrue, fcpattern, &fcres); FcTrue, fcpattern, &fcres);
/*
* Overwrite or create the new cache entry
* entry.
*/
frccur++; frccur++;
frclen++; frclen++;
if (frccur >= LEN(frc)) if (frccur >= LEN(frc))
frccur = 0; frccur = 0;
if (frclen >= LEN(frc)) { if (frclen > LEN(frc)) {
frclen = LEN(frc); frclen = LEN(frc);
XftFontClose(xw.dpy, frc[frccur].font); XftFontClose(xw.dpy, frc[frccur].font);
} }
/*
* Overwrite or create the new cache entry
* entry.
*/
frc[frccur].font = XftFontOpenPattern(xw.dpy, frc[frccur].font = XftFontOpenPattern(xw.dpy,
fontpattern); fontpattern);
frc[frccur].c = u8char; frc[frccur].c = u8char;
@ -2704,11 +2727,10 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
frp = frccur; frp = frccur;
} }
sfont = frc[frp].font;
}
XftDrawStringUtf8(xw.draw, fg, sfont, xp, winy + sfont->ascent, XftDrawStringUtf8(xw.draw, fg, frc[frp].font,
(FcChar8 *)u8c, u8clen); xp, winy + frc[frp].font->ascent,
(FcChar8 *)u8c, u8cblen);
xp += font->width; xp += font->width;
} }

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