st

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commit c7b033b8f0a31ec08d3d9dafa390b24c6e232e09
parent 0e232a41150d67539df05e60c7e829f0bfb431d0
Author: Christoph Lohmann <20h@r-36.net>
Date:   Sat Jan 19 15:00:16 +0100

Trying out the double buffering without dbe.

Diffstat:
st.c | 50+++++++++++++++++++++++++++++++++++++++-----------
1 file changed, 39 insertions(+), 11 deletions(-)
diff --git a/st.c b/st.c @@ -213,8 +213,7 @@ typedef struct { 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 w, h; /* window width and height */ int ch; /* char height */ int cw; /* char width */ char state; /* focus, redraw, visible */ @@ -284,11 +283,12 @@ typedef struct { typedef struct { Colour col[LEN(colorname) < 256 ? 256 : LEN(colorname)]; Font font, bfont, ifont, ibfont; + GC gc; } DC; static void die(const char *, ...); static void draw(void); -static void redraw(void); +static void redraw(int); static void drawregion(int, int, int, int); static void execsh(void); static void sigchld(int); @@ -1510,7 +1510,7 @@ tsetmode(bool priv, bool set, int *args, int narg) { mode = term.mode; MODBIT(term.mode, set, MODE_REVERSE); if(mode != term.mode) - redraw(); + redraw(REDRAW_TIMEOUT); break; case 6: /* DECOM -- 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.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); } @@ -2449,7 +2457,7 @@ xzoom(const Arg *arg) xunloadfonts(); xloadfonts(usedfont, usedfontsize + arg->i); cresize(0, 0); - draw(); + redraw(0); } void @@ -2512,13 +2520,22 @@ xinit(void) { &attrs); /* double buffering */ + /* if(XdbeQueryExtension(xw.dpy, &major, &minor)) { xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win, XdbeBackground); usedbe = True; } 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 */ xw.draw = XftDrawCreate(xw.dpy, xw.win, xw.vis, xw.cmap); @@ -2815,13 +2832,17 @@ xresettitle(void) { } void -redraw(void) { - struct timespec tv = {0, REDRAW_TIMEOUT * 1000}; +redraw(int timeout) { + struct timespec tv = {0, timeout * 1000}; tfulldirt(); + fprintf(stderr, "draw from redraw\n"); 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 @@ -2829,8 +2850,14 @@ draw(void) { XdbeSwapInfo swpinfo[1] = {{xw.win, XdbeCopied}}; drawregion(0, 0, term.col, term.row); - if(usedbe) + if(usedbe) { 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 @@ -2889,6 +2916,7 @@ expose(XEvent *ev) { if(!e->count) xw.state &= ~WIN_REDRAW; } + redraw(0); } void