testing oscilloscope latency

1 files changed, 68 insertions, 0 deletions

diff --git a/audioin/src/ofApp.h b/audioin/src/ofApp.h
new file mode 100644
index 0000000..cecc23e
--- /dev/null
+++ b/audioin/src/ofApp.h
@@ -0,0 +1,68 @@
+#pragma once
+
+#include "ofMain.h"
+
+#include <baudvine/ringbuf.h>
+
+#define SAMPLERATE 48000
+#define min(a,b) (a<b?a:b)
+
+class Buffer{
+public:
+    Buffer(size_t sz=0){
+        if (sz){
+            data =new float[sz];
+            size=sz;
+        }
+    }
+    ~Buffer(){
+        delete data;
+    }
+    void add(float * input, int num){
+        memcpy(&data[writePoint],input,min(num,size-writePoint)*4);
+        if (size-writePoint<num){
+            memcpy(data,&input[size-writePoint],(num-(size-writePoint))*4);
+            writePoint=num-(size-writePoint);
+        }
+        else writePoint+=num;
+    }
+    float operator [] (int i) const {return data[writePoint>i?writePoint-i:size-(i-writePoint)];}
+    float& operator [] (int i) {return data[writePoint>i?writePoint-i:size-(i-writePoint)];}
+private:
+    size_t size;
+    float *data;
+    int writePoint;
+};
+
+class ofApp : public ofBaseApp{
+
+	public:
+		void setup();
+		void update();
+		void draw();
+
+		void keyPressed(int key);
+		void keyReleased(int key);
+		void mouseMoved(int x, int y );
+		void mouseDragged(int x, int y, int button);
+		void mousePressed(int x, int y, int button);
+		void mouseReleased(int x, int y, int button);
+		void windowResized(int w, int h);
+		void dragEvent(ofDragInfo dragInfo);
+		void gotMessage(ofMessage msg);
+        
+        void audioIn(float * input, int bufferSize, int nChannels);
+    
+        ofSoundStream soundStream;
+        int blockSize;
+        int sampleRate;
+
+        int frameHead; //last sample drawn
+
+        //baudvine::RingBuf<float, SAMPLERATE> buffer;
+
+        Buffer buffer;
+
+        float hScale;
+        float vScale;
+};