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redraw optimization.

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This commit is contained in:
Aurélien Aptel 2010-10-16 17:13:22 +02:00
parent 5822a9fe61
commit 53bdabe24a
1 changed files with 24 additions and 12 deletions
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36
st.c
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@ -58,6 +58,7 @@ enum { GLYPH_SET=1, GLYPH_DIRTY=2 };
enum { MODE_WRAP=1, MODE_INSERT=2, MODE_APPKEYPAD=4, MODE_ALTSCREEN=8 };
enum { ESC_START=1, ESC_CSI=2, ESC_OSC=4, ESC_TITLE=8, ESC_ALTCHARSET=16 };
enum { SCREEN_UPDATE, SCREEN_REDRAW };
enum { WIN_VISIBLE=1, WIN_REDRAW=2, WIN_FOCUSED=4 };
typedef struct {
char c; /* character code */
@ -117,8 +118,7 @@ typedef struct {
int bufh; /* pixmap height */
int ch; /* char height */
int cw; /* char width */
int focus;
int vis; /* is visible */
char state; /* focus, redraw, visible */
} XWindow;
typedef struct {
@ -1166,7 +1166,7 @@ tputc(char c) {
tnewline();
break;
case '\a':
if(!xw.focus)
if(!(xw.state & WIN_FOCUSED))
xseturgency(1);
break;
case '\033':
@ -1418,7 +1418,7 @@ xdrawcursor(void) {
xclear(oldx, oldy, oldx, oldy);
/* draw the new one */
if(!(term.c.state & CURSOR_HIDE) && xw.focus) {
if(!(term.c.state & CURSOR_HIDE) && (xw.state & WIN_FOCUSED)) {
xdraws(&g.c, g, term.c.x, term.c.y, 1);
oldx = term.c.x, oldy = term.c.y;
}
@ -1458,7 +1458,7 @@ draw(int redraw_all) {
Glyph base, new;
char buf[DRAW_BUF_SIZ];
if(!xw.vis)
if(!(xw.state & WIN_VISIBLE))
return;
xclear(0, 0, term.col-1, term.row-1);
@ -1487,27 +1487,36 @@ draw(int redraw_all) {
}
xdrawcursor();
XCopyArea(xw.dis, xw.buf, xw.win, dc.gc, 0, 0, xw.bufw, xw.bufh, BORDER, BORDER);
XFlush(xw.dis);
}
#endif
void
expose(XEvent *ev) {
draw(SCREEN_REDRAW);
XExposeEvent *e = &ev->xexpose;
if(xw.state & WIN_REDRAW) {
if(!e->count) {
xw.state &= ~WIN_REDRAW;
draw(SCREEN_REDRAW);
}
} else
XCopyArea(xw.dis, xw.buf, xw.win, dc.gc, e->x-BORDER, e->y-BORDER,
e->width, e->height, e->x, e->y);
}
void
visibility(XEvent *ev) {
XVisibilityEvent *e = &ev->xvisibility;
/* XXX if this goes from 0 to 1, need a full redraw for next Expose,
* not just a buf copy */
xw.vis = e->state != VisibilityFullyObscured;
if(e->state == VisibilityFullyObscured)
xw.state &= ~WIN_VISIBLE;
else if(!(xw.state & WIN_VISIBLE))
/* need a full redraw for next Expose, not just a buf copy */
xw.state |= WIN_VISIBLE | WIN_REDRAW;
}
void
unmap(XEvent *ev) {
xw.vis = 0;
xw.state &= ~WIN_VISIBLE;
}
void
@ -1520,8 +1529,11 @@ xseturgency(int add) {
void
focus(XEvent *ev) {
if((xw.focus = ev->type == FocusIn))
if(ev->type == FocusIn) {
xw.state |= WIN_FOCUSED;
xseturgency(0);
} else
xw.state &= ~WIN_FOCUSED;
draw(SCREEN_UPDATE);
}