testing oscilloscope latency

1 files changed, 144 insertions, 0 deletions

diff --git a/audioin/src/ofApp.cpp b/audioin/src/ofApp.cpp
new file mode 100644
index 0000000..4535c3c
--- /dev/null
+++ b/audioin/src/ofApp.cpp
@@ -0,0 +1,144 @@
+#include "ofApp.h"
+void ofApp::setup(){
+
+    int frameRate=60;
+    
+    ofSetFrameRate(frameRate);
+    ofBackground(0);
+    ofEnableSmoothing();
+    ofEnableAlphaBlending();
+    ofSetVerticalSync(true);
+
+    blockSize = SAMPLERATE / (frameRate*20); //200
+
+    soundStream.setup(this,0, 1, SAMPLERATE, blockSize, 1);
+
+    buffer=Buffer(SAMPLERATE);
+
+    vScale=3.0f;
+    hScale=8.0f;
+  
+}
+void ofApp::update(){
+    
+ 
+}
+
+int sampleNum=0;
+int frameNum=0;
+
+void ofApp::draw(){
+    ofBackground(0);
+
+    ofPushMatrix();
+
+    ofTranslate(0,ofGetHeight()/2);
+
+    ofScale(1.0f,ofGetHeight()*vScale);
+
+    ofPolyline line;
+    line.addVertex(0,buffer[0]);
+
+    float i=0.0f;
+    while (i<ofGetWidth()){
+        line.curveTo(i,buffer[(int)i]);
+        i+=hScale;
+    }
+
+    line.draw();
+
+    ofPopMatrix();
+    
+    frameNum++;
+
+}
+
+
+
+void ofApp::audioIn(float * input, int blockSize, int nChannels){
+   //ofLog()<< "frame "<<frameNum<<" ,got blockr "<<sampleNum++<<" , "<<nChannels<<" channels "<<blockSize<<" samples";    
+   
+//    for (int i=0;i<blockSize;i++){
+//        buffer.push_front()
+//    }
+
+    //ofLog()<< "samples: "<<input[0]<<" "<<input[1]<<" "<<input[2]<<" ";
+
+    buffer.add(input,blockSize);
+
+}
+
+
+
+
+//--------------------------------------------------------------
+void ofApp::keyPressed(int key){
+    switch(key){
+        case 'f':{
+            ofToggleFullscreen();
+            break;
+        }
+        case 'i':{
+            vScale*=1.1f;
+            ofLog()<< "vScale: "<<vScale;
+            break;
+        }
+        case 'm':{
+            vScale/=1.1f;
+            ofLog()<< "vScale: "<<vScale;
+            break;
+        }
+        case 'j':{
+            hScale*=1.1f;
+            ofLog()<< "hScale: "<<hScale;
+            break;
+        }
+        case 'k':{
+            hScale/=1.1f;
+            ofLog()<< "hScale: "<<hScale;
+            break;
+        }
+        default:
+            break;
+    }
+
+}
+
+//--------------------------------------------------------------
+void ofApp::keyReleased(int key){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::mouseMoved(int x, int y ){
+
+}
+
+void ofApp::mouseDragged(int x, int y, int button){
+ 
+}
+
+//--------------------------------------------------------------
+void ofApp::mousePressed(int x, int y, int button){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::mouseReleased(int x, int y, int button){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::windowResized(int w, int h){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::gotMessage(ofMessage msg){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::dragEvent(ofDragInfo dragInfo){
+
+}