mirror of
https://github.com/ultimatepp/ultimatepp.git
synced 2026-05-16 06:05:58 -06:00
97 lines
2.3 KiB
C++
97 lines
2.3 KiB
C++
#ifndef _portaudioTest_Wave_h_
|
|
#define _portaudioTest_Wave_h_
|
|
|
|
class Wave:public WithWaveLayout<ParentCtrl>{
|
|
Sound snd;
|
|
double f1,f2,a1,a2,sr;
|
|
public:
|
|
typedef Wave CLASSNAME;
|
|
Wave(){
|
|
CtrlLayout(*this);
|
|
freq1<<=THISBACK(OnChange);FileIn f;
|
|
freq2<<=THISBACK(OnChange);
|
|
amp1<<=THISBACK(OnChange);
|
|
amp2<<=THISBACK(OnChange);
|
|
device<<=THISBACK(OnChange);
|
|
samplerate<<=THISBACK(OnChange);
|
|
fpb<<=THISBACK(OnChange);
|
|
button<<=THISBACK(OnPlay);
|
|
button.SetLabel("Play");
|
|
freq1<<=440; freq2<<=440;
|
|
amp1 <<=1; amp2 <<=1;
|
|
for(int i=0;i<SoundSys().GetCount();i++){
|
|
device.Add(i,SoundSys()[i].name);
|
|
}
|
|
device<<=SoundSys().GetDefaultOutput().index;
|
|
samplerate.AddList(4000.0);
|
|
samplerate.AddList(8000.0);
|
|
samplerate.AddList(9600.0);
|
|
samplerate.AddList(11025.0);
|
|
samplerate.AddList(12000.0);
|
|
samplerate.AddList(16000.0);
|
|
samplerate.AddList(22050.0);
|
|
samplerate.AddList(24000.0);
|
|
samplerate.AddList(32000.0);
|
|
samplerate.AddList(44100.0);
|
|
samplerate.AddList(48000.0);
|
|
samplerate.AddList(88200.0);
|
|
samplerate.AddList(96000.0);
|
|
samplerate<<=44100;
|
|
fpb<<=1024;
|
|
snd<<=THISBACK(Generator);
|
|
snd.SetFlags(SND_NOCLIP);
|
|
button.SetImage(SoundImg::Play(),SoundImg::Pause());
|
|
}
|
|
private:
|
|
void Generator(StreamCallbackArgs& arg){
|
|
static unsigned int n=0;
|
|
double T=M_2PI/sr;
|
|
for(int i=0;i<arg.fpb;i++){
|
|
((float*)arg.output)[2*i] =a1*sin(f1*n*T);
|
|
((float*)arg.output)[2*i+1]=a2*sin(f2*n*T);
|
|
n++;
|
|
}
|
|
}
|
|
void OnChange(){
|
|
if(!~button) return;
|
|
KillTimeCallback();
|
|
cpu.SetLabel("CPU usage: -");
|
|
snd.Close();
|
|
Start();
|
|
}
|
|
void CpuUsage(){
|
|
if(!snd.IsActive()) cpu.SetLabel("CPU usage: -");
|
|
else cpu.SetLabel(Format("CPU usage: %1n ",snd.CpuLoad()*100)+"\x25");
|
|
}
|
|
void Start(){
|
|
f1=~freq1;f2=~freq2;
|
|
a1=~amp1; a2=~amp2;
|
|
sr=~samplerate;
|
|
snd.SetSampleRate(sr).SetFramesPerBuffer((fpb>0)?fpb:1);
|
|
snd.Open(Null,StreamParameters(~device,2,SND_FLOAT32,SoundDevice(~device).LowOutputLatency));
|
|
if(CheckError()) return;
|
|
snd.Start();
|
|
SetTimeCallback(-250,THISBACK(CpuUsage));
|
|
};
|
|
void OnPlay(){
|
|
if(~button){
|
|
button.SetLabel("Stop");
|
|
Start();
|
|
}else{
|
|
button.SetLabel("Play");
|
|
KillTimeCallback();
|
|
cpu.SetLabel("CPU usage: -");
|
|
snd.Close();
|
|
}
|
|
}
|
|
bool CheckError(){
|
|
if(snd.IsError()){
|
|
error<<="[1 Error: "+snd.GetError();
|
|
return true;
|
|
}
|
|
error<<="";
|
|
return false;
|
|
}
|
|
};
|
|
|
|
#endif
|