From b135fb5408e45dbdef413f54465a2083f666a30c Mon Sep 17 00:00:00 2001
From: sigonasr2 <sigonasr2@gmail.com>
Date: Thu, 17 Mar 2022 01:01:08 -0500
Subject: [PATCH] Setup renderer

---
 bin/sig/Panel.class       | Bin 0 -> 2832 bytes
 bin/sig/PolygonFill.class | Bin 0 -> 872 bytes
 src/sig/Panel.java        |  99 ++++++++++++++++++++++++++++++++++++++
 src/sig/PolygonFill.java  |  21 ++++++++
 4 files changed, 120 insertions(+)
 create mode 100644 bin/sig/Panel.class
 create mode 100644 bin/sig/PolygonFill.class
 create mode 100644 src/sig/Panel.java
 create mode 100644 src/sig/PolygonFill.java

diff --git a/bin/sig/Panel.class b/bin/sig/Panel.class
new file mode 100644
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diff --git a/bin/sig/PolygonFill.class b/bin/sig/PolygonFill.class
new file mode 100644
index 0000000000000000000000000000000000000000..de7fb2f59bbb0e77e199477eb8ade20511e0cf48
GIT binary patch
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diff --git a/src/sig/Panel.java b/src/sig/Panel.java
new file mode 100644
index 0000000..b4516dc
--- /dev/null
+++ b/src/sig/Panel.java
@@ -0,0 +1,99 @@
+package sig;
+import java.awt.Graphics;
+import java.awt.GraphicsConfiguration;
+import java.awt.GraphicsEnvironment;
+import java.awt.Image;
+import java.awt.Toolkit;
+import java.awt.image.ColorModel;
+import java.awt.image.MemoryImageSource;
+
+import javax.swing.JPanel;
+
+public class Panel extends JPanel implements Runnable {
+    public int pixel[];
+    public int width=1280;
+    public int height=720; 
+    private Thread thread;
+    private Image imageBuffer;   
+    private MemoryImageSource mImageProducer;   
+    private ColorModel cm;   
+
+    public Panel() {
+        super(true);
+        thread = new Thread(this, "MyPanel Thread");
+    }
+
+    /**
+     * Get Best Color model available for current screen.
+     * @return color model
+     */
+    protected static ColorModel getCompatibleColorModel(){        
+        GraphicsConfiguration gfx_config = GraphicsEnvironment.
+                getLocalGraphicsEnvironment().getDefaultScreenDevice().
+                getDefaultConfiguration();        
+        return gfx_config.getColorModel();
+    }
+
+    /**
+     * Call it after been visible and after resizes.
+     */
+    public void init(){        
+        cm = getCompatibleColorModel();
+        int screenSize = width * height;
+        if(pixel == null || pixel.length < screenSize){
+            pixel = new int[screenSize];
+        }        
+        if(thread.isInterrupted() || !thread.isAlive()){
+            thread.start();
+        }
+        mImageProducer =  new MemoryImageSource(width, height, cm, pixel,0, width);
+        mImageProducer.setAnimated(true);
+        mImageProducer.setFullBufferUpdates(true);  
+        imageBuffer = Toolkit.getDefaultToolkit().createImage(mImageProducer);        
+    }
+
+    @Override
+    public void paintComponent(Graphics g) {
+        super.paintComponent(g);
+        // perform draws on pixels
+        render();
+        // ask ImageProducer to update image
+        mImageProducer.newPixels();            
+        // draw it on panel          
+        g.drawImage(this.imageBuffer, 0, 0, this);  
+    }
+    
+    /**
+     * Overrides ImageObserver.imageUpdate.
+     * Always return true, assuming that imageBuffer is ready to go when called
+     */
+    @Override
+    public boolean imageUpdate(Image image, int a, int b, int c, int d, int e) {
+        return true;
+    }
+    /**
+    * Do your draws in here !!
+    * pixel is your canvas!
+    */
+    public /* abstract */ void render(){
+        int[] p = pixel; // this avoid crash when resizing
+        //a=h/w
+        
+        for (int x=0;x<1280;x++) {
+        	for (int y=0;y<720;y++) {
+        		p[y*1280+x]=(0<<16)+(0<<8)+0;
+        	}
+        }
+        
+        
+    }
+
+	@Override
+	public void run() {
+		while (true) {
+            // request a JPanel re-drawing
+            repaint();                                  
+            try {Thread.sleep(5);} catch (InterruptedException e) {}
+        }
+	}
+}
\ No newline at end of file
diff --git a/src/sig/PolygonFill.java b/src/sig/PolygonFill.java
new file mode 100644
index 0000000..0326df5
--- /dev/null
+++ b/src/sig/PolygonFill.java
@@ -0,0 +1,21 @@
+package sig;
+
+import javax.swing.JFrame;
+
+public class PolygonFill {
+	public static void main(String[] args) {
+		Panel p = new Panel();
+		JFrame f = new JFrame("Polygon Fill Renderer");
+		
+		p.init();
+		
+		f.add(p);
+		f.setSize(1280,720);
+		f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		f.setVisible(true);
+		
+		while (true) {
+			p.render();
+		}
+	}
+}