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Trying out the double buffering without dbe.

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Christoph Lohmann 2013-01-19 15:00:16 +01:00
parent 0e232a4115
commit c7b033b8f0
1 changed files with 39 additions and 11 deletions
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st.c
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@ -213,8 +213,7 @@ typedef struct {
bool isfixed; /* is fixed geometry? */ bool isfixed; /* is fixed geometry? */
int fx, fy, fw, fh; /* fixed geometry */ int fx, fy, fw, fh; /* fixed geometry */
int tw, th; /* tty width and height */ int tw, th; /* tty width and height */
int w; /* window width */ int w, h; /* window width and height */
int h; /* window height */
int ch; /* char height */ int ch; /* char height */
int cw; /* char width */ int cw; /* char width */
char state; /* focus, redraw, visible */ char state; /* focus, redraw, visible */
@ -284,11 +283,12 @@ typedef struct {
typedef struct { typedef struct {
Colour col[LEN(colorname) < 256 ? 256 : LEN(colorname)]; Colour col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
Font font, bfont, ifont, ibfont; Font font, bfont, ifont, ibfont;
GC gc;
} DC; } DC;
static void die(const char *, ...); static void die(const char *, ...);
static void draw(void); static void draw(void);
static void redraw(void); static void redraw(int);
static void drawregion(int, int, int, int); static void drawregion(int, int, int, int);
static void execsh(void); static void execsh(void);
static void sigchld(int); static void sigchld(int);
@ -1510,7 +1510,7 @@ tsetmode(bool priv, bool set, int *args, int narg) {
mode = term.mode; mode = term.mode;
MODBIT(term.mode, set, MODE_REVERSE); MODBIT(term.mode, set, MODE_REVERSE);
if(mode != term.mode) if(mode != term.mode)
redraw(); redraw(REDRAW_TIMEOUT);
break; break;
case 6: /* DECOM -- Origin */ case 6: /* DECOM -- Origin */
MODBIT(term.c.state, set, CURSOR_ORIGIN); MODBIT(term.c.state, set, CURSOR_ORIGIN);
@ -2234,6 +2234,14 @@ xresize(int col, int row) {
xw.tw = MAX(1, col * xw.cw); xw.tw = MAX(1, col * xw.cw);
xw.th = MAX(1, row * xw.ch); xw.th = MAX(1, row * xw.ch);
if(!usedbe) {
XFreePixmap(xw.dpy, xw.buf);
xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
DefaultDepth(xw.dpy, xw.scr));
XSetForeground(xw.dpy, dc.gc, 0);
XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
}
XftDrawChange(xw.draw, xw.buf); XftDrawChange(xw.draw, xw.buf);
} }
@ -2449,7 +2457,7 @@ xzoom(const Arg *arg)
xunloadfonts(); xunloadfonts();
xloadfonts(usedfont, usedfontsize + arg->i); xloadfonts(usedfont, usedfontsize + arg->i);
cresize(0, 0); cresize(0, 0);
draw(); redraw(0);
} }
void void
@ -2512,13 +2520,22 @@ xinit(void) {
&attrs); &attrs);
/* double buffering */ /* double buffering */
/*
if(XdbeQueryExtension(xw.dpy, &major, &minor)) { if(XdbeQueryExtension(xw.dpy, &major, &minor)) {
xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win, xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win,
XdbeBackground); XdbeBackground);
usedbe = True; usedbe = True;
} else { } else {
xw.buf = xw.win; */
dc.gc = XCreateGC(xw.dpy, parent, 0, 0);
xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
DefaultDepth(xw.dpy, xw.scr));
XSetForeground(xw.dpy, dc.gc, 0);
XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
//xw.buf = xw.win;
/*
} }
*/
/* Xft rendering context */ /* Xft rendering context */
xw.draw = XftDrawCreate(xw.dpy, xw.win, xw.vis, xw.cmap); xw.draw = XftDrawCreate(xw.dpy, xw.win, xw.vis, xw.cmap);
@ -2815,13 +2832,17 @@ xresettitle(void) {
} }
void void
redraw(void) { redraw(int timeout) {
struct timespec tv = {0, REDRAW_TIMEOUT * 1000}; struct timespec tv = {0, timeout * 1000};
tfulldirt(); tfulldirt();
fprintf(stderr, "draw from redraw\n");
draw(); draw();
XSync(xw.dpy, False); /* necessary for a good tput flash */
nanosleep(&tv, NULL); if(timeout > 0) {
nanosleep(&tv, NULL);
XSync(xw.dpy, False); /* necessary for a good tput flash */
}
} }
void void
@ -2829,8 +2850,14 @@ draw(void) {
XdbeSwapInfo swpinfo[1] = {{xw.win, XdbeCopied}}; XdbeSwapInfo swpinfo[1] = {{xw.win, XdbeCopied}};
drawregion(0, 0, term.col, term.row); drawregion(0, 0, term.col, term.row);
if(usedbe) if(usedbe) {
XdbeSwapBuffers(xw.dpy, swpinfo, 1); XdbeSwapBuffers(xw.dpy, swpinfo, 1);
} else {
XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.w,
xw.h, 0, 0);
XSetForeground(xw.dpy, dc.gc, 0);
XSync(xw.dpy, False);
}
} }
void void
@ -2889,6 +2916,7 @@ expose(XEvent *ev) {
if(!e->count) if(!e->count)
xw.state &= ~WIN_REDRAW; xw.state &= ~WIN_REDRAW;
} }
redraw(0);
} }
void void