sqrwave.cpp

00001 /** sqrwave class
00002  * Copyright (c) 2014, 2015 Motoo Tanaka @ Design Methodology Lab
00003  *
00004  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00005  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00006  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00007  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00008  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00009  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00010  * THE SOFTWARE.
00011  */
00012  
00013 #include "sqrwave.h"
00014 
00015 sqrwave::sqrwave(float v, int f, int d, int p ) : wave(v, f, d, p) 
00016 {
00017     _name = "sqr" ; 
00018 }
00019 
00020 sqrwave::~sqrwave(void) { }
00021 
00022 int sqrwave::value(void)
00023 {
00024     int result = 0 ;
00025     if (_duty == 100) {
00026         result = _amp ;
00027     } else if (_duty == 0) {
00028         result = 0 ;
00029     } else if (_pos < (int)((_duty * _cycle)/100)) {
00030         result = _amp ;
00031     }
00032     return( result ) ;
00033 }