Diff: beep_sound.cpp

Revision:

3:86238dba1529

Parent:

2:259899b723ab

Child:

4:237b642c2ffa

--- a/beep_sound.cpp	Sat Jun 04 17:50:58 2016 +0000
+++ b/beep_sound.cpp	Tue Jun 28 09:47:46 2016 +0000
@@ -1,5 +1,8 @@
 #include "beep_sound.h"
 #include "math.h"
+#include <queue>
+
+
 beep_sound::beep_sound(PinName pwm)
 {
     m_pwm = new PwmOut(pwm);
@@ -11,20 +14,64 @@
     delete m_pwm;
 }
 
+void beep_sound::stop(){
+    m_pwm->write(0.0f);
+    // キューが空でなければ次の音へ
+    if(otoQue.empty() != 1){
+        beep_sound::playGakuhu();
+    }
+}
+
+// 音の再生
+void beep_sound::NoteOn(int octave, int note)
+{
+    frequency = frequencyTable[note] << octave;
+    m_pwm->period(1.0f/(float)frequency);
+    m_pwm->write(0.5f);
+}
+
+// 1音ずつ音符情報をキューに追加
+void beep_sound::setGakuhu(int argOc, int argNo, float argTi)
+{
+    buf.octave = argOc;
+    buf.note = argNo;
+    buf.time_s = argTi;
+    otoQue.push(buf);
+}
+
+// 休符をキューに追加
+void beep_sound::setKyuhu(float argTi)
+{
+    buf.octave = 1000;
+    buf.note = 0;
+    buf.time_s = argTi;
+    otoQue.push(buf);
+}
+
+// 楽譜キューを再生、音停止の割り込み予約
+// Timeoutの日本語リファレンスには書いていないが、
+// thisを引数にしないとコンパイルエラーになるので注意
+void beep_sound::playGakuhu()
+{
+    beep_sound::NoteOn(otoQue.front().octave, otoQue.front().note);
+    interruptStop.attach(this, &beep_sound::stop, otoQue.front().time_s);
+    otoQue.pop();
+}
+
 void beep_sound::SetFrequency(int octave, int note, bool on_off)
 {
-        static int preFrequency = 0;
-        if(on_off == true){
-            int frequency = frequencyTable[note] << octave;
-            if(frequency != preFrequency){
-                m_pwm->period(1.0f/(float)frequency);
-                m_pwm->write(0.5f);
-            }
-            preFrequency = frequency;
-        }else{
-            m_pwm->write(0.0f);
-            preFrequency = 0;
+    static int preFrequency = 0;
+    if(on_off == true){
+        int frequency = frequencyTable[note] << octave;
+        if(frequency != preFrequency){
+            m_pwm->period(1.0f/(float)frequency);
+            m_pwm->write(0.5f);
         }
+        preFrequency = frequency;
+    }else{
+        m_pwm->write(0.0f);
+        preFrequency = 0;
+    }
 }
 
 void beep_sound::onpu(int octave, int note, float time_s)
@@ -45,7 +92,7 @@
 }
 void beep_sound::sinwave(float center,int speed,int width)
 {
-    for(float i=0.0;i<6.28;i+=0.01*speed)
+    for(float i=0.0f;i<6.28f;i+=0.01*speed)
     {
     m_pwm->period(1.0f/(center+width*(float)sin(i)));
     m_pwm->write(0.5f);