diff signals/@sigarray/sigarray.m @ 1:289445d368a7

import.

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/signals/@sigarray/sigarray.m	Wed Dec 19 22:46:05 2012 +0000
@@ -0,0 +1,46 @@
+classdef sigarray < signal
+	properties (GetAccess=private, SetAccess=immutable)
+		fs
+		array
+	end
+	methods
+		function s=sigarray(array,rate)
+			if nargin<2, rate=nan; end
+			s.array=array;
+			s.fs=rate;
+		end
+
+		function s=tostring(sig)
+			s=sprintf('sigarray(<%dx%d>)',size(sig.array,1),size(sig.array,2));
+		end
+
+		function c=channels(s), c=size(s.array,1); end
+		function c=rate(s), c=s.fs; end
+		function s=construct(sig)
+			array=sig.array;
+			ch=size(array,1);
+			length=size(array,2);
+			pos=0;
+
+			s.start   = @nop;
+			s.stop    = @nop;
+			s.dispose = @nop;
+			s.reader = @reader;
+
+			function r=reader(n)
+				r = @next;
+				CHUNK = 1:uint32(n);
+				function [x,rem]=next
+					if pos+n<=length
+						x=array(:,pos+CHUNK); rem=0; 
+						pos=pos+n;
+					else
+						rem=n-(length-pos);
+						x=[array(:,pos+1:end),zeros(ch,rem)];
+						pos=length;
+					end
+				end
+			end
+		end
+	end
+end