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