ndiSyphonScaler.pde

import codeanticode.syphon.*;

PGraphics srcCanvas;
PGraphics dstCanvas;
boolean srcReady;
SyphonClient client;
SyphonServer server;

void setup()
{
  size(400, 400, P3D);
  srcReady = false;
  srcCanvas = createGraphics(3840, 2160, P3D);
  dstCanvas = createGraphics(3172, 768, P3D);
  
  //client = new SyphonClient(this, "Syphon2NDIClient");
  client = new SyphonClient(this);
  server = new SyphonServer(this, "scalerOutput");
}

void draw(){
  if (client.newFrame()){
    srcCanvas = client.getGraphics(srcCanvas);
    srcReady = true;
  }
  if (srcReady){
    dstCanvas.beginDraw();
    dstCanvas.image(srcCanvas, 0, 0, dstCanvas.width, dstCanvas.height);
    dstCanvas.endDraw();
    server.sendImage(dstCanvas);
  }
  
  background(0);
  textSize(32);
  textAlign(LEFT, TOP);
  text(str(frameRate), 10, 10);
}