Add initial GPU based curve rendering implementation, utilizing TTF fonts and manual shapes

1 files changed, 230 insertions, 0 deletions

diff --git a/src/demo/GPURegionNewtDemo01.java b/src/demo/GPURegionNewtDemo01.java
new file mode 100755
index 000000000..c728e74e5
--- /dev/null
+++ b/src/demo/GPURegionNewtDemo01.java
@@ -0,0 +1,230 @@
+/**
+ * Copyright 2010 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+
+package demo;
+
+import javax.media.opengl.GL;
+import javax.media.opengl.GL2ES2;
+import javax.media.opengl.GLAutoDrawable;
+import javax.media.opengl.GLCapabilities;
+import javax.media.opengl.GLEventListener;
+import javax.media.opengl.GLProfile;
+
+import com.jogamp.graph.curve.HwRegionRenderer;
+import com.jogamp.graph.curve.OutlineShape;
+import com.jogamp.graph.geom.opengl.Vertex;
+import com.jogamp.newt.event.KeyEvent;
+import com.jogamp.newt.event.KeyListener;
+import com.jogamp.newt.event.WindowAdapter;
+import com.jogamp.newt.event.WindowEvent;
+import com.jogamp.newt.opengl.GLWindow;
+import com.jogamp.opengl.util.FPSAnimator;
+
+/** Demonstrate the rendering of multiple outlines into one region/OutlineShape
+ *  These Outlines are not necessary connected or contained.
+ *  The output of this demo shows two identical shapes but the left one
+ *  has some vertices with off-curve flag set to true, and the right allt he vertices 
+ *  are on the curve. Demos the Res. Independent Nurbs based Curve rendering 
+ *
+ */
+public class GPURegionNewtDemo01 {
+	private static void create(){
+		new RegionNewtWindow();
+	}
+	public static void main(String[] args) {
+		create();
+	}
+}
+
+class RegionNewtWindow {
+	RegionGLListener regionGLListener = null; 
+
+	public RegionNewtWindow(){
+		createWindow();
+	}
+	private void createWindow() {
+		GLProfile.initSingleton(true);
+		GLProfile glp = GLProfile.getGL2ES2();
+		GLCapabilities caps = new GLCapabilities(glp);
+		caps.setDoubleBuffered(true);
+		caps.setSampleBuffers(true);
+		caps.setNumSamples(4);
+		System.out.println(caps);
+		final GLWindow window = GLWindow.create(caps);
+		window.setPosition(10, 10);
+		window.setSize(500, 500);
+
+		window.setTitle("GPU Curve Region Newt Demo 01");
+		regionGLListener = new RegionGLListener();
+		window.addGLEventListener(regionGLListener);
+
+		window.setVisible(true);
+
+		window.addKeyListener(new KeyListener() {
+			public void keyPressed(KeyEvent arg0) {
+				if(arg0.getKeyCode() == KeyEvent.VK_1){
+					regionGLListener.zoomIn();
+				}
+				else if(arg0.getKeyCode() == KeyEvent.VK_2){
+					regionGLListener.zoomOut();
+				}
+				else if(arg0.getKeyCode() == KeyEvent.VK_UP){
+					regionGLListener.move(0, -1);
+				}
+				else if(arg0.getKeyCode() == KeyEvent.VK_DOWN){
+					regionGLListener.move(0, 1);
+				}
+				else if(arg0.getKeyCode() == KeyEvent.VK_LEFT){
+					regionGLListener.move(1, 0);
+				}
+				else if(arg0.getKeyCode() == KeyEvent.VK_RIGHT){
+					regionGLListener.move(-1, 0);
+				}
+				else if(arg0.getKeyCode() == KeyEvent.VK_0){
+					regionGLListener.rotate(1);
+				}
+				else if(arg0.getKeyCode() == KeyEvent.VK_9){
+					regionGLListener.rotate(-1);
+				}
+			}
+			public void keyTyped(KeyEvent arg0) {}
+			public void keyReleased(KeyEvent arg0) {}
+		});
+
+		FPSAnimator animator = new FPSAnimator(60);
+		animator.add(window);
+		window.addWindowListener(new WindowAdapter() {
+			public void windowDestroyNotify(WindowEvent arg0) {
+				System.exit(0);
+			};
+		});
+		animator.start();
+	}
+	private class RegionGLListener implements GLEventListener{
+		HwRegionRenderer regionRenderer = null;
+		
+		OutlineShape outlineShape = null;
+		
+		public RegionGLListener() {}
+		
+		private void createTestOutline(){
+			float offset = 0;
+			outlineShape = new OutlineShape(Vertex.factory());
+			outlineShape.addVertex(0.0f,-10.0f, true);
+			outlineShape.addVertex(15.0f,-10.0f, true);
+			outlineShape.addVertex(10.0f,5.0f, false);
+			outlineShape.addVertex(15.0f,10.0f, true);
+			outlineShape.addVertex(6.0f,15.0f, false);
+			outlineShape.addVertex(5.0f,8.0f, false);
+			outlineShape.addVertex(0.0f,10.0f,true);
+			outlineShape.closeLastOutline();
+			outlineShape.addEmptyOutline();
+			outlineShape.addVertex(5.0f,-5.0f,true);
+			outlineShape.addVertex(10.0f,-5.0f, false);
+			outlineShape.addVertex(10.0f,0.0f, true);
+			outlineShape.addVertex(5.0f,0.0f, false);
+			outlineShape.closeLastOutline();
+			
+			/** Same shape as above but without any off-curve vertices */
+			outlineShape.addEmptyOutline();
+			offset = 30;
+			outlineShape.addVertex(offset+0.0f,-10.0f, true);
+			outlineShape.addVertex(offset+17.0f,-10.0f, true);
+			outlineShape.addVertex(offset+11.0f,5.0f, true);
+			outlineShape.addVertex(offset+16.0f,10.0f, true);
+			outlineShape.addVertex(offset+7.0f,15.0f, true);
+			outlineShape.addVertex(offset+6.0f,8.0f, true);
+			outlineShape.addVertex(offset+0.0f,10.0f, true);
+			outlineShape.closeLastOutline();
+			outlineShape.addEmptyOutline();
+			outlineShape.addVertex(offset+5.0f,0.0f, true);
+			outlineShape.addVertex(offset+5.0f,-5.0f, true);
+			outlineShape.addVertex(offset+10.0f,-5.0f, true);
+			outlineShape.addVertex(offset+10.0f,0.0f, true);
+			outlineShape.closeLastOutline();
+		}
+
+		public void init(GLAutoDrawable drawable) {
+			GL2ES2 gl = drawable.getGL().getGL2ES2();
+			gl.setSwapInterval(1);
+			gl.glEnable(GL2ES2.GL_DEPTH_TEST);
+			regionRenderer = new HwRegionRenderer(drawable.getContext());
+			createTestOutline();
+		}
+
+		float ang = 0;
+		float zoom = -70;
+		float xTran = -20;
+		float yTran = 5;
+
+		public void display(GLAutoDrawable drawable) {
+			GL2ES2 gl = drawable.getGL().getGL2ES2();
+
+			gl.glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
+			gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
+
+			regionRenderer.resetMatrix();
+			regionRenderer.translate(xTran, yTran, zoom);
+			regionRenderer.rotate(ang, 0, 1, 0);
+
+			try {
+				regionRenderer.setAlpha(1.0f);
+				regionRenderer.setColor(0.0f, 0.0f, 1.0f);
+				
+				regionRenderer.renderOutlineShape(outlineShape, new float[]{0,0,0});
+			} catch (Exception e) { 
+				e.printStackTrace();
+			}
+		}
+		public void reshape(GLAutoDrawable drawable, int xstart, int ystart, int width, int height){
+			GL2ES2 gl = drawable.getGL().getGL2ES2();
+			gl.glViewport(xstart, ystart, width, height);
+
+			regionRenderer.reshape(drawable, 45.0f, (float)width / (float)height, 0.1f, 7000.0f);
+		}
+
+		public void zoomIn(){
+			zoom++;
+		}
+		public void zoomOut(){
+			zoom--;
+		}
+		public void move(float x, float y){
+			xTran += x;
+			yTran += y;
+		}
+		public void rotate(float delta){
+			ang+= delta;
+			ang%=360;
+		}
+		public void dispose(GLAutoDrawable arg0) {
+			regionRenderer.clearCached();
+			
+		}
+	}
+}