1 /*******************************************************************************
2  * Copyright 2009-2016 Jörg Müller
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *   http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  ******************************************************************************/
16 
17 #include "fx/Sum.h"
18 #include "fx/IIRFilterReader.h"
19 
20 AUD_NAMESPACE_BEGIN
21 
Sum(std::shared_ptr<ISound> sound)22 Sum::Sum(std::shared_ptr<ISound> sound) :
23 		Effect(sound)
24 {
25 }
26 
createReader()27 std::shared_ptr<IReader> Sum::createReader()
28 {
29 	std::vector<float> a, b;
30 	a.push_back(1);
31 	a.push_back(-1);
32 	b.push_back(1);
33 	return std::shared_ptr<IReader>(new IIRFilterReader(getReader(), b, a));
34 }
35 
36 AUD_NAMESPACE_END
37