1 files changed, 68 insertions, 0 deletions
diff --git a/includes/js/dojox/encoding/bits.js b/includes/js/dojox/encoding/bits.js
new file mode 100644
index 0000000..8beb167
--- /dev/null
+++ b/includes/js/dojox/encoding/bits.js
@@ -0,0 +1,68 @@
+if(!dojo._hasResource["dojox.encoding.bits"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dojox.encoding.bits"] = true;
+dojo.provide("dojox.encoding.bits");
+
+dojox.encoding.bits.OutputStream = function(){
+	this.reset();
+};
+
+dojo.extend(dojox.encoding.bits.OutputStream, {
+	reset: function(){
+		this.buffer = [];
+		this.accumulator = 0;
+		this.available = 8;
+	},
+	putBits: function(value, width){
+		while(width){
+			var w = Math.min(width, this.available);
+			var v = (w <= width ? value >>> (width - w) : value) << (this.available - w);
+			this.accumulator |= v & (255 >>> (8 - this.available));
+			this.available -= w;
+			if(!this.available){
+				this.buffer.push(this.accumulator);
+				this.accumulator = 0;
+				this.available = 8;
+			}
+			width -= w;
+		}
+	},
+	getWidth: function(){
+		return this.buffer.length * 8 + (8 - this.available);
+	},
+	getBuffer: function(){
+		var b = this.buffer;
+		if(this.available < 8){ b.push(this.accumulator & (255 << this.available)); }
+		this.reset();
+		return b;
+	}
+});
+
+dojox.encoding.bits.InputStream = function(buffer, width){
+	this.buffer = buffer;
+	this.width = width;
+	this.bbyte = this.bit = 0;
+};
+
+dojo.extend(dojox.encoding.bits.InputStream, {
+	getBits: function(width){
+		var r = 0;
+		while(width){
+			var w = Math.min(width, 8 - this.bit);
+			var v = this.buffer[this.bbyte] >>> (8 - this.bit - w);
+			r <<= w;
+			r |= v & ~(~0 << w);
+			this.bit += w;
+			if(this.bit == 8){
+				++this.bbyte;
+				this.bit = 0;
+			}
+			width -= w;
+		}
+		return r;
+	},
+	getWidth: function(){
+		return this.width - this.bbyte * 8 - this.bit;
+	}
+});
+
+}