package asgl.shaders.agal {
	public class AGALCodec {
		public function AGALCodec() {
		}
		/**
		 * @param dest = v.n
		 * @param rgba = v
		 * @param constants = v, v.xyzw = [1/(256*256*256), 1/(256*256), 1/256, 1]
		 */
		public static function decodeFloatFromRGBA(dest:String, rgba:String, constants:String):String {
			var code:String = '';
			
			code += AGALBase.dp4(dest, rgba, constants);
			
			return code;
		}
		/**
		 * @param dest = v
		 * @param float = 0-0.99999....., the value can set dest or tmp
		 * @param constants1 = v, v.xyzw = [256*256*256, 256*256, 256, 1]
		 * @param constants2 = v, v.xyzw = [0, 1/256, 1/256, 1/256]
		 * @param tmp = v, will use four components.
		 */
		public static function encodeFloatToRGBA(dest:String, float:String, constants1:String, constants2:String, tmp:String):String {
			var code:String = '';
			
			code += AGALBase.mul(dest, constants1, float);
			code += AGALBase.frc(dest, dest);
			code += AGALBase.mul(tmp, dest+'.xxyz', constants2);
			code += AGALBase.sub(dest, dest, tmp);
			
			return code;
		}
	}
}