shithub: patch

ref: 6d96112f6ce0be241bdd2e09d5c80af040852574
dir: /spit-nodraw/

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diff 0216663a6e9d723eadc6692c656dd98b2964493b uncommitted
--- a/a.h
+++ b/a.h
@@ -12,7 +12,7 @@
 
 enum 
 {
-	Maxslides = 64,
+	Maxslides = 128,
 	Maxlines  = 16 
 };
 
--- a/spit.c
+++ b/spit.c
@@ -15,6 +15,7 @@
 int			curslide;
 Image		*bol;
 Image		*bullet;
+int			nodraw;
 
 void
 ladd(Lines *l, char *s)
@@ -273,6 +274,22 @@
 }
 
 void
+barf(void)
+{
+	int fd;
+	char path[64];
+	Image **i;
+
+	for(i=slides; i<slides+nslides+1; i++){
+		snprint(path, sizeof path, "spit.%03zd.bit", i - slides);
+		if((fd = create(path, OWRITE, 0644)) < 0)
+			sysfatal("open: %r");
+		writeimage(fd, *i, 0);
+		close(fd);
+	}
+}
+
+void
 redraw(void)
 {
 	draw(screen, screen->r, slides[curslide], nil, ZP);
@@ -354,7 +371,7 @@
 void
 usage(void)
 {
-	fprint(2, "%s [-f font] [-F fixedfont] <filename>\n", argv0);
+	fprint(2, "%s [-n] [-f font] [-F fixedfont] <filename>\n", argv0);
 	exits("usage");
 }
 
@@ -381,6 +398,9 @@
 	case 'F':
 		fname = EARGF(usage());
 		break;
+	case 'n':
+		nodraw = 1;
+		break;
 	default:
 		usage();
 	}ARGEND;
@@ -408,6 +428,10 @@
 	initstyle(tname, fname);
 	initimages();
 	render(f);
+	if(nodraw){
+		barf();
+		threadexitsall(nil);
+	}
 	resize();
 	for(;;){
 		switch(alt(alts)){