X-Git-Url: https://git.xinqibao.xyz/st.git/blobdiff_plain/85849ce72aa4e9cee307a031b97777e9eba2d453..11bec67875936ffd954c7c28faf98b3cc25cb47f:/st.c
diff --git a/st.c b/st.c
index d7ca875..83edbb8 100644
--- a/st.c
+++ b/st.c
@@ -25,6 +25,9 @@
#include <X11/cursorfont.h>
#include <X11/keysym.h>
#include <X11/extensions/Xdbe.h>
+#include <X11/Xft/Xft.h>
+#define Glyph Glyph_
+#define Font Font_
#if defined(__linux)
#include <pty.h>
@@ -48,7 +51,7 @@
#define ESC_ARG_SIZ 16
#define STR_BUF_SIZ 256
#define STR_ARG_SIZ 16
-#define DRAW_BUF_SIZ 1024
+#define DRAW_BUF_SIZ 20*1024
#define UTF_SIZ 4
#define XK_NO_MOD UINT_MAX
#define XK_ANY_MOD 0
@@ -195,9 +198,12 @@ typedef struct {
Atom xembed;
XIM xim;
XIC xic;
+ XftDraw *xft_draw;
+ Visual *vis;
int scr;
- Bool isfixed; /* is fixed geometry? */
+ bool isfixed; /* is fixed geometry? */
int fx, fy, fw, fh; /* fixed geometry */
+ int tw, th; /* tty width and height */
int w; /* window width */
int h; /* window height */
int ch; /* char height */
@@ -211,7 +217,6 @@ typedef struct {
char s[ESC_BUF_SIZ];
} Key;
-
/* TODO: use better name for vars... */
typedef struct {
int mode;
@@ -227,17 +232,22 @@ typedef struct {
#include "config.h"
+/* Font structure */
+typedef struct {
+ int ascent;
+ int descent;
+ short lbearing;
+ short rbearing;
+ XFontSet set;
+ XftFont* xft_set;
+} Font;
+
/* Drawing Context */
typedef struct {
ulong col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
+ XftColor xft_col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
GC gc;
- struct {
- int ascent;
- int descent;
- short lbearing;
- short rbearing;
- XFontSet set;
- } font, bfont, ifont, ibfont;
+ Font font, bfont, ifont, ibfont;
} DC;
static void die(const char*, ...);
@@ -282,13 +292,12 @@ static void tfulldirt(void);
static void ttynew(void);
static void ttyread(void);
-static void ttyresize(int, int);
+static void ttyresize(void);
static void ttywrite(const char *, size_t);
static void xdraws(char *, Glyph, int, int, int, int);
static void xhints(void);
static void xclear(int, int, int, int);
-static void xcopy(void);
static void xdrawcursor(void);
static void xinit(void);
static void xloadcols(void);
@@ -325,6 +334,7 @@ static int isfullutf8(char *, int);
static void *xmalloc(size_t);
static void *xrealloc(void *, size_t);
+static void *xcalloc(size_t nmemb, size_t size);
static void (*handler[LASTEvent])(XEvent *) = {
[KeyPress] = kpress,
@@ -363,14 +373,22 @@ void *
xmalloc(size_t len) {
void *p = malloc(len);
if(!p)
- die("Out of memory");
+ die("Out of memory\n");
return p;
}
void *
xrealloc(void *p, size_t len) {
if((p = realloc(p, len)) == NULL)
- die("Out of memory");
+ die("Out of memory\n");
+ return p;
+}
+
+void *
+xcalloc(size_t nmemb, size_t size) {
+ void *p = calloc(nmemb, size);
+ if(!p)
+ die("Out of memory\n");
return p;
}
@@ -562,8 +580,11 @@ bpress(XEvent *e) {
if(IS_SET(MODE_MOUSE))
mousereport(e);
else if(e->xbutton.button == Button1) {
- if(sel.bx != -1)
+ if(sel.bx != -1) {
+ sel.bx = -1;
tsetdirt(sel.b.y, sel.e.y);
+ draw();
+ }
sel.mode = 1;
sel.ex = sel.bx = X2COL(e->xbutton.x);
sel.ey = sel.by = Y2ROW(e->xbutton.y);
@@ -585,14 +606,17 @@ selcopy(void) {
/* append every set & selected glyph to the selection */
for(y = 0; y < term.row; y++) {
for(x = 0; x < term.col; x++) {
- is_selected = selected(x, y);
- if((term.line[y][x].state & GLYPH_SET) && is_selected) {
- int size = utf8size(term.line[y][x].c);
- memcpy(ptr, term.line[y][x].c, size);
- ptr += size;
- }
+ int size;
+ char *p;
+ Glyph *gp = &term.line[y][x];
+
+ if(!(is_selected = selected(x, y)))
+ continue;
+ p = (gp->state & GLYPH_SET) ? gp->c : " ";
+ size = utf8size(p);
+ memcpy(ptr, p, size);
+ ptr += size;
}
-
/* \n at the end of every selected line except for the last one */
if(is_selected && y < sel.e.y)
*ptr++ = '\n';
@@ -635,7 +659,6 @@ void selclear(XEvent *e) {
return;
sel.bx = -1;
tsetdirt(sel.b.y, sel.e.y);
- draw();
}
void
@@ -685,8 +708,6 @@ xsetsel(char *str) {
clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
-
- XFlush(xw.dpy);
}
void
@@ -729,7 +750,6 @@ brelease(XEvent *e) {
}
memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
gettimeofday(&sel.tclick1, NULL);
- draw();
}
void
@@ -746,7 +766,6 @@ bmotion(XEvent *e) {
int starty = MIN(oldey, sel.ey);
int endy = MAX(oldey, sel.ey);
tsetdirt(starty, endy);
- draw();
}
}
}
@@ -880,13 +899,13 @@ ttywrite(const char *s, size_t n) {
}
void
-ttyresize(int x, int y) {
+ttyresize(void) {
struct winsize w;
w.ws_row = term.row;
w.ws_col = term.col;
- w.ws_xpixel = xw.w;
- w.ws_ypixel = xw.h;
+ w.ws_xpixel = xw.tw;
+ w.ws_ypixel = xw.th;
if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
}
@@ -921,7 +940,7 @@ tcursor(int mode) {
void
treset(void) {
- unsigned i;
+ uint i;
term.c = (TCursor){{
.mode = ATTR_NULL,
.fg = DefaultFG,
@@ -933,6 +952,7 @@ treset(void) {
term.tabs[i] = 1;
term.top = 0, term.bot = term.row - 1;
term.mode = MODE_WRAP;
+ xclear(0, 0, xw.w, xw.h);
tclearregion(0, 0, term.col-1, term.row-1);
}
@@ -1584,7 +1604,7 @@ strreset(void) {
void
tputtab(bool forward) {
- unsigned x = term.c.x;
+ uint x = term.c.x;
if(forward) {
if(x == term.col)
@@ -1804,8 +1824,8 @@ tresize(int col, int row) {
/* allocate any new rows */
for(/* i == minrow */; i < row; i++) {
term.dirty[i] = 1;
- term.line[i] = calloc(col, sizeof(Glyph));
- term.alt [i] = calloc(col, sizeof(Glyph));
+ term.line[i] = xcalloc(col, sizeof(Glyph));
+ term.alt [i] = xcalloc(col, sizeof(Glyph));
}
if(col > term.col) {
bool *bp = term.tabs + term.col;
@@ -1828,49 +1848,51 @@ tresize(int col, int row) {
void
xresize(int col, int row) {
- xw.w = MAX(1, 2*BORDER + col * xw.cw);
- xw.h = MAX(1, 2*BORDER + row * xw.ch);
+ xw.tw = MAX(1, 2*BORDER + col * xw.cw);
+ xw.th = MAX(1, 2*BORDER + row * xw.ch);
+
+ XftDrawChange(xw.xft_draw, xw.buf);
}
void
xloadcols(void) {
int i, r, g, b;
- XColor color;
+ XRenderColor xft_color = { .alpha = 0 };
ulong white = WhitePixel(xw.dpy, xw.scr);
/* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
for(i = 0; i < LEN(colorname); i++) {
if(!colorname[i])
continue;
- if(!XAllocNamedColor(xw.dpy, xw.cmap, colorname[i], &color, &color)) {
+ if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.xft_col[i])) {
dc.col[i] = white;
fprintf(stderr, "Could not allocate color '%s'\n", colorname[i]);
} else
- dc.col[i] = color.pixel;
+ dc.col[i] = dc.xft_col[i].pixel;
}
/* load colors [16-255] ; same colors as xterm */
for(i = 16, r = 0; r < 6; r++)
for(g = 0; g < 6; g++)
for(b = 0; b < 6; b++) {
- color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
- color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
- color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
- if(!XAllocColor(xw.dpy, xw.cmap, &color)) {
+ xft_color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
+ xft_color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
+ xft_color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
+ if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &xft_color, &dc.xft_col[i])) {
dc.col[i] = white;
fprintf(stderr, "Could not allocate color %d\n", i);
} else
- dc.col[i] = color.pixel;
+ dc.col[i] = dc.xft_col[i].pixel;
i++;
}
for(r = 0; r < 24; r++, i++) {
- color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
- if(!XAllocColor(xw.dpy, xw.cmap, &color)) {
+ xft_color.red = xft_color.green = xft_color.blue = 0x0808 + 0x0a0a * r;
+ if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &xft_color, &dc.xft_col[i])) {
dc.col[i] = white;
fprintf(stderr, "Could not allocate color %d\n", i);
} else
- dc.col[i] = color.pixel;
+ dc.col[i] = dc.xft_col[i].pixel;
}
}
@@ -1907,58 +1929,25 @@ xhints(void) {
XFree(sizeh);
}
-XFontSet
-xinitfont(char *fontstr) {
- XFontSet set;
- char *def, **missing;
- int n;
-
- missing = NULL;
- set = XCreateFontSet(xw.dpy, fontstr, &missing, &n, &def);
- if(missing) {
- while(n--)
- fprintf(stderr, "st: missing fontset: %s\n", missing[n]);
- XFreeStringList(missing);
- }
- return set;
-}
-
void
-xgetfontinfo(XFontSet set, int *ascent, int *descent, short *lbearing, short *rbearing) {
- XFontStruct **xfonts;
- char **font_names;
- int i, n;
+xinitfont(Font *f, char *fontstr) {
+ f->xft_set = XftFontOpenName(xw.dpy, xw.scr, fontstr);
- *ascent = *descent = *lbearing = *rbearing = 0;
- n = XFontsOfFontSet(set, &xfonts, &font_names);
- for(i = 0; i < n; i++) {
- *ascent = MAX(*ascent, (*xfonts)->ascent);
- *descent = MAX(*descent, (*xfonts)->descent);
- *lbearing = MAX(*lbearing, (*xfonts)->min_bounds.lbearing);
- *rbearing = MAX(*rbearing, (*xfonts)->max_bounds.rbearing);
- xfonts++;
- }
+ if(!f->xft_set)
+ die("st: can't open font %s.\n", fontstr);
+
+ f->ascent = f->xft_set->ascent;
+ f->descent = f->xft_set->descent;
+ f->lbearing = 0;
+ f->rbearing = f->xft_set->max_advance_width;
}
void
initfonts(char *fontstr, char *bfontstr, char *ifontstr, char *ibfontstr) {
- if((dc.font.set = xinitfont(fontstr)) == NULL)
- die("Can't load font %s\n", fontstr);
- if((dc.bfont.set = xinitfont(bfontstr)) == NULL)
- die("Can't load bfont %s\n", bfontstr);
- if((dc.ifont.set = xinitfont(ifontstr)) == NULL)
- die("Can't load ifont %s\n", ifontstr);
- if((dc.ibfont.set = xinitfont(ibfontstr)) == NULL)
- die("Can't load ibfont %s\n", ibfontstr);
-
- xgetfontinfo(dc.font.set, &dc.font.ascent, &dc.font.descent,
- &dc.font.lbearing, &dc.font.rbearing);
- xgetfontinfo(dc.bfont.set, &dc.bfont.ascent, &dc.bfont.descent,
- &dc.bfont.lbearing, &dc.bfont.rbearing);
- xgetfontinfo(dc.ifont.set, &dc.ifont.ascent, &dc.ifont.descent,
- &dc.ifont.lbearing, &dc.ifont.rbearing);
- xgetfontinfo(dc.ibfont.set, &dc.ibfont.ascent, &dc.ibfont.descent,
- &dc.ibfont.lbearing, &dc.ibfont.rbearing);
+ xinitfont(&dc.font, fontstr);
+ xinitfont(&dc.bfont, bfontstr);
+ xinitfont(&dc.ifont, ifontstr);
+ xinitfont(&dc.ibfont, ibfontstr);
}
void
@@ -1971,6 +1960,7 @@ xinit(void) {
if(!(xw.dpy = XOpenDisplay(NULL)))
die("Can't open display\n");
xw.scr = XDefaultScreen(xw.dpy);
+ xw.vis = XDefaultVisual(xw.dpy, xw.scr);
/* font */
initfonts(FONT, BOLDFONT, ITALICFONT, ITALICBOLDFONT);
@@ -2013,14 +2003,19 @@ xinit(void) {
parent = opt_embed ? strtol(opt_embed, NULL, 0) : XRootWindow(xw.dpy, xw.scr);
xw.win = XCreateWindow(xw.dpy, parent, xw.fx, xw.fy,
xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
- XDefaultVisual(xw.dpy, xw.scr),
+ xw.vis,
CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
| CWColormap,
&attrs);
+
+ /* double buffering */
if(!XdbeQueryExtension(xw.dpy, &major, &minor))
die("Xdbe extension is not present\n");
xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win, XdbeCopied);
+ /* Xft rendering context */
+ xw.xft_draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
+
/* input methods */
xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
@@ -2048,7 +2043,8 @@ void
xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
int fg = base.fg, bg = base.bg, temp;
int winx = BORDER+x*xw.cw, winy = BORDER+y*xw.ch + dc.font.ascent, width = charlen*xw.cw;
- XFontSet fontset = dc.font.set;
+ Font *font = &dc.font;
+ XGlyphInfo extents;
int i;
/* only switch default fg/bg if term is in RV mode */
@@ -2064,13 +2060,13 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
if(base.mode & ATTR_BOLD) {
fg += 8;
- fontset = dc.bfont.set;
+ font = &dc.bfont;
}
if(base.mode & ATTR_ITALIC)
- fontset = dc.ifont.set;
+ font = &dc.ifont;
if(base.mode & (ATTR_ITALIC|ATTR_ITALIC))
- fontset = dc.ibfont.set;
+ font = &dc.ibfont;
XSetBackground(xw.dpy, dc.gc, dc.col[bg]);
XSetForeground(xw.dpy, dc.gc, dc.col[fg]);
@@ -2085,19 +2081,15 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
}
}
- XmbDrawImageString(xw.dpy, xw.buf, fontset, dc.gc, winx, winy, s, bytelen);
+ XftTextExtentsUtf8(xw.dpy, font->xft_set, (FcChar8 *)s, bytelen, &extents);
+ width = extents.xOff;
+ XftDrawRect(xw.xft_draw, &dc.xft_col[bg], winx, winy - font->ascent, width, xw.ch);
+ XftDrawStringUtf8(xw.xft_draw, &dc.xft_col[fg], font->xft_set, winx, winy, (FcChar8 *)s, bytelen);
if(base.mode & ATTR_UNDERLINE)
XDrawLine(xw.dpy, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1);
}
-/* copy buffer pixmap to screen pixmap */
-void
-xcopy() {
- XdbeSwapInfo swpinfo[1] = {{xw.win, XdbeCopied}};
- XdbeSwapBuffers(xw.dpy, swpinfo, 1);
-}
-
void
xdrawcursor(void) {
static int oldx = 0;
@@ -2118,8 +2110,6 @@ xdrawcursor(void) {
} else
xclear(oldx, oldy, oldx, oldy);
- xcopy();
-
/* draw the new one */
if(!(term.c.state & CURSOR_HIDE)) {
if(!(xw.state & WIN_FOCUSED))
@@ -2132,8 +2122,6 @@ xdrawcursor(void) {
xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
oldx = term.c.x, oldy = term.c.y;
}
-
- xcopy();
}
void
@@ -2144,6 +2132,8 @@ xresettitle(void) {
void
redraw(void) {
struct timespec tv = {0, REDRAW_TIMEOUT * 1000};
+
+ xclear(0, 0, xw.w, xw.h);
tfulldirt();
draw();
XSync(xw.dpy, False); /* necessary for a good tput flash */
@@ -2152,8 +2142,10 @@ redraw(void) {
void
draw() {
+ XdbeSwapInfo swpinfo[1] = {{xw.win, XdbeCopied}};
+
drawregion(0, 0, term.col, term.row);
- xcopy();
+ XdbeSwapBuffers(xw.dpy, swpinfo, 1);
}
void
@@ -2208,7 +2200,6 @@ expose(XEvent *ev) {
if(!e->count)
xw.state &= ~WIN_REDRAW;
}
- xcopy();
}
void
@@ -2241,7 +2232,6 @@ focus(XEvent *ev) {
xseturgency(0);
} else
xw.state &= ~WIN_FOCUSED;
- draw();
}
char*
@@ -2317,7 +2307,6 @@ cmessage(XEvent *e) {
} else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
xw.state &= ~WIN_FOCUSED;
}
- draw();
}
}
@@ -2334,31 +2323,48 @@ resize(XEvent *e) {
row = (xw.h - 2*BORDER) / xw.ch;
if(col == term.col && row == term.row)
return;
- if(tresize(col, row))
- draw();
+
+ xclear(0, 0, xw.w, xw.h);
+ tresize(col, row);
xresize(col, row);
- ttyresize(col, row);
+ ttyresize();
}
void
run(void) {
XEvent ev;
fd_set rfd;
- int xfd = XConnectionNumber(xw.dpy);
+ int xfd = XConnectionNumber(xw.dpy), i;
+ struct timeval drawtimeout, *tv = NULL;
- for(;;) {
+ for(i = 0;; i++) {
FD_ZERO(&rfd);
FD_SET(cmdfd, &rfd);
FD_SET(xfd, &rfd);
- if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, NULL) < 0) {
+ if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv) < 0) {
if(errno == EINTR)
continue;
die("select failed: %s\n", SERRNO);
}
- if(FD_ISSET(cmdfd, &rfd))
+
+ /*
+ * Stop after a certain number of reads so the user does not
+ * feel like the system is stuttering.
+ */
+ if(i < 1000 && FD_ISSET(cmdfd, &rfd)) {
ttyread();
- draw();
+ /*
+ * Just wait a bit so it isn't disturbing the
+ * user and the system is able to write something.
+ */
+ drawtimeout.tv_sec = 0;
+ drawtimeout.tv_usec = 5;
+ tv = &drawtimeout;
+ continue;
+ }
+ i = 0;
+ tv = NULL;
while(XPending(xw.dpy)) {
XNextEvent(xw.dpy, &ev);
@@ -2367,13 +2373,16 @@ run(void) {
if(handler[ev.type])
(handler[ev.type])(&ev);
}
+
+ draw();
+ XFlush(xw.dpy);
}
}
int
main(int argc, char *argv[]) {
int i, bitm, xr, yr;
- unsigned int wr, hr;
+ uint wr, hr;
xw.fw = xw.fh = xw.fx = xw.fy = 0;
xw.isfixed = False;
@@ -2425,9 +2434,9 @@ main(int argc, char *argv[]) {
run:
setlocale(LC_CTYPE, "");
+ xinit();
tnew(80, 24);
ttynew();
- xinit();
selinit();
run();
return 0;