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68 lines
1.6 KiB
C++
68 lines
1.6 KiB
C++
#ifndef _SoundExample_Blocking_h_
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#define _SoundExample_Blocking_h_
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// float buf[1000];
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// SoundStream s;
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// s.OpenDefault(0,2);
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// for(int i=0;i<1000;i++){
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// buf[i]=(float)sin(M_PI*i/100.0);
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// }
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// s.Start();
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// for(int i=0;i<40;i++){
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// s.Write(buf,1000);
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// }
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// Couple tricks borrowed from DlgCtrl.cpp
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const int* Sin16();
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inline int sin16(int i){return Sin16()[i & 65535];}
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class Theremin:public StaticRect{
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volatile double f;
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volatile double A;
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bool play;
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SoundStream snd;
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float buf[40000];
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public:
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typedef Theremin CLASSNAME;
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Theremin(){
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Color(Black());
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}
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void Beep(){
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static double s=1/655336.0;
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for(int i=0;i<40000;i++){
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buf[i]=(float)A*sin(M_PI*(1+10*f)*i/100.0);
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}
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snd.Write(buf,20000);
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}
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void MouseMove(Point p,dword){
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Size sz=GetSize();
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f=p.x/(double)sz.cx;
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A=1-p.y/(double)sz.cy;
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Color(HsvColorf(f,A,0.5));
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Sync();
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}
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void LeftDown(Point p,dword){
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Beep();
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}
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void MouseEnter(Point,dword){
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snd.OpenDefault();
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snd.Start();
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}
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void MouseLeave(){
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Color(Black());
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snd.Close();
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}
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};
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class Blocking:public WithBlockingLayout<ParentCtrl>{
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Theremin theremin;
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public:
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typedef Blocking CLASSNAME;
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Blocking(){
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CtrlLayout(*this);
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Add(theremin.HSizePosZ(8,208).VSizePosZ(8,8));
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info<<="[1 Move your cursor above the area on the left to play a sound. This toy was originally inspired by russian musical instrument called Theremin, but the result sounds much worse than the real thing... && Disregard the clapping noises, they are artefacts caused by delay between emptiing buffer and next mouse move event. The only purpose of this tab is to show syntax of SoundStream. ]";
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}
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};
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#endif
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