brightneess

brightness.h

#pragma once

#include "ofMain.h"

// lib
#include "ofxGui.h"
#include "ofxKinectV2.h"
#include "format.h"

class Const
{
public:
  
  // layout
  const static int WIDTH = 1920;
  const static int HEIGHT = 1080;
  
  const static int DEPTH_WIDTH = 512;
  const static int DEPTH_HEIGHT = 424;
  
  const static int COLOR_WIDTH = 1920;
  const static int COLOR_HEIGHT = 1080;
  
  const static int W_MARGIN = 20;
  const static int H_MARGIN = 20;
  
  constexpr static float DEPTH_SCALE = 1.0;
  constexpr static float COLOR_SCALE = 0.3;
};


class ofApp : public ofBaseApp
{

public:

	ofxKinectV2 * _kinect;
  ofTexture _texRGB;
  ofShader _brightnessShader;

	ofxPanel _gui;
	ofParameter <float> _brightness;

	void setup()
	{
		// env
    ofBackground(30, 30, 30);
    
    // kinect
    ofxKinectV2 tmp;
    vector <ofxKinectV2::KinectDeviceInfo> deviceList = tmp.getDeviceList();
    _kinect = new ofxKinectV2();
    _kinect->open(deviceList[0].serial);

    // gui
    _gui.setup("", "settings.xml", 10,  10);    
    _gui.add( _brightness.set("brightness", 0.0,0.0,1.0));


    // shader
    setupShader();
	}

	void setupShader()
	{
		string brightnessShader = R"(
		  uniform float Brightness;
      uniform sampler2DRect tex;
      void main()
      {
        vec4 col = texture2DRect(tex, gl_TexCoord[0].xy);

        col.r = clamp(col.r - Brightness, 0.0, 1.0);
        col.g = clamp(col.g - Brightness, 0.0, 1.0);
        col.b = clamp(col.b - Brightness, 0.0, 1.0);
      
        gl_FragColor = vec4(col.r, col.g, col.b, 1.0);
      }
		)";
		_brightnessShader.setupShaderFromSource(GL_FRAGMENT_SHADER, brightnessShader);
		_brightnessShader.linkProgram();
	}

	void update()
	{
		static int updatecount = 0;

		_kinect->update();
    if( _kinect->isFrameNew() )
    {
      _texRGB.loadData( _kinect->getRgbPixels() ); 

      // save
      ofPixels pixels;
			_texRGB.readToPixels(pixels);

			// img
			if(updatecount % 3 == 0)
			{
				ofImage img;
				img.setFromPixels(pixels);
				int milli = ofGetElapsedTimeMillis(); 
			 	string filename = fmt::format("kinect/file_{0:08}.jpg",milli) ;
				img.save(filename);
	    }

			updatecount++;
    }


	}

	void draw()
	{
    // env
    ofClear(100);
    ofSetColor(255);

     // RGB
     // _texRGB.draw(0, 0, Const::COLOR_WIDTH, Const::COLOR_HEIGHT);

    // shader 
    _brightnessShader.begin();
    {
    	_brightnessShader.setUniform1f("Brightness", _brightness);
    	_texRGB.draw(0, 0, Const::COLOR_WIDTH, Const::COLOR_HEIGHT);
    }
    _brightnessShader.end();

 		// fps
		stringstream ss;
    ss << "framerate: " << ofToString(ofGetFrameRate(), 0);
    ofDrawBitmapString(ss.str(), 10, 20);

    // gui
		ofSetColor(255);
		_gui.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 mouseEntered(int x, int y);
	// void mouseExited(int x, int y);
	// void windowResized(int w, int h);
	// void dragEvent(ofDragInfo dragInfo);
	// void gotMessage(ofMessage msg);
		
};