shithub: atlas

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keep w/h increments to a minimum

--- a/atlas.c

+++ b/atlas.c

@@ -105,7 +105,7 @@

 	stbrp_node *nodes;

 	Memimage **im, *b;

 	stbrp_context ctx;

-	int i, w, h, n, fd, chan;

+	int i, w, h, n, fd, chan, delta;

 	u32int backcolor;

 	o = nil;

@@ -148,6 +148,7 @@

 	im = calloc(argc, sizeof(*im));

 	rects = calloc(argc, sizeof(*rects));

 	w = h = n = 0;

+	delta = 99999;

 	for (i = 0; i < argc; i++) {

 		if ((im[i] = load(argv[i])) == nil)

 			sysfatal("%s: %r", argv[i]);

@@ -160,6 +161,10 @@

 			w = rects[i].w;

 		if (h < rects[i].h)

 			h = rects[i].h;

+		if (delta > w)

+			delta = w;

+		if (delta > h)

+			delta = h;

 		n += rects[i].w;

 	}

 	nodes = calloc(n, sizeof(*nodes));

@@ -167,8 +172,8 @@

 		stbrp_init_target(&ctx, w, h, nodes, n);

 		if (stbrp_pack_rects(&ctx, rects, argc) == 1)

 			break;

-		w += 32;

-		h += 32;

+		w += delta;

+		h += delta;

 	}

 	if ((fd = o == nil ? open("/dev/null", OWRITE) : create(o, OWRITE, 0664)) < 0)