shithub: neindaw

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waveform: (re)allocate image when size changes

--- a/waveform/waveform.c

+++ b/waveform/waveform.c

@@ -141,9 +141,11 @@

 	free(b);

 	r.max.x = y;

 	r.max.y = 128;

-	freeimage(w->image);

-	if ((w->image = allocimage(display, r, GREY1, 0, DNofill)) == nil)

-		return -1;

+	if (w->image == nil || !eqrect(r, w->image->r)) {

+		freeimage(w->image);

+		if ((w->image = allocimage(display, r, GREY1, 0, DNofill)) == nil)

+			return -1;

+	}

 	if (loadimage(w->image, r, (void*)p, 128*y) < 0)

 		fprint(2, "failed: %r\n");