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

1 files changed, 198 insertions, 0 deletions

diff --git a/src/demo/GPUTextNewtDemo01.java b/src/demo/GPUTextNewtDemo01.java
new file mode 100644
index 000000000..fcd2134ae
--- /dev/null
+++ b/src/demo/GPUTextNewtDemo01.java
@@ -0,0 +1,198 @@
+/**
+ * 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.Region;
+import com.jogamp.graph.curve.text.HwTextRenderer;
+import com.jogamp.graph.font.Font;
+import com.jogamp.graph.geom.Point;
+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;
+
+public class GPUTextNewtDemo01 {
+	private static void create(){
+		new TextNewtWindow1();
+	}
+	public static void main(String[] args) {
+		create();
+	}
+}
+
+class TextNewtWindow1 {
+	Point.Factory<Vertex> pointFactory = Vertex.factory();
+	
+	TextGLListener textGLListener = null; 
+
+	public TextNewtWindow1(){
+		createWindow();
+	}
+	private void createWindow() {
+		GLProfile.initSingleton(true);
+		GLProfile glp = GLProfile.getGL2ES2();
+		GLCapabilities caps = new GLCapabilities(glp);
+		caps.setAlphaBits(4);
+	    caps.setSampleBuffers(true); // FIXME: sure ?
+		caps.setNumSamples(4); // FIXME: sure ?
+		System.out.println("Requested: "+caps);
+		
+		final GLWindow window = GLWindow.create(caps);
+		
+		window.setPosition(10, 10);
+		window.setSize(500, 500);
+
+		window.setTitle("GPU Text Newt Demo 01");
+		textGLListener = new TextGLListener();
+		window.addGLEventListener(textGLListener);
+
+		window.setVisible(true);
+
+		window.addKeyListener(new KeyListener() {
+			public void keyPressed(KeyEvent arg0) {
+				if(arg0.getKeyCode() == KeyEvent.VK_1){
+					textGLListener.zoomIn();
+				}
+				else if(arg0.getKeyCode() == KeyEvent.VK_2){
+					textGLListener.zoomOut();
+				}
+				else if(arg0.getKeyCode() == KeyEvent.VK_UP){
+					textGLListener.move(0, -1);
+				}
+				else if(arg0.getKeyCode() == KeyEvent.VK_DOWN){
+					textGLListener.move(0, 1);
+				}
+				else if(arg0.getKeyCode() == KeyEvent.VK_LEFT){
+					textGLListener.move(1, 0);
+				}
+				else if(arg0.getKeyCode() == KeyEvent.VK_RIGHT){
+					textGLListener.move(-1, 0);
+				}
+				else if(arg0.getKeyCode() == KeyEvent.VK_0){
+					textGLListener.rotate(1);
+				}
+				else if(arg0.getKeyCode() == KeyEvent.VK_9){
+					textGLListener.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 TextGLListener implements GLEventListener{
+		HwTextRenderer textRenderer = null;
+
+		public TextGLListener(){
+
+		}
+
+		public void init(GLAutoDrawable drawable) {
+			GL2ES2 gl = drawable.getGL().getGL2ES2();
+			gl.setSwapInterval(1);
+			gl.glEnable(GL2ES2.GL_DEPTH_TEST);
+			textRenderer = new HwTextRenderer(drawable.getContext(), pointFactory, Region.SINGLE_PASS);
+			
+			System.out.println("Realised: "+drawable.getChosenGLCapabilities());			
+			System.out.println("MS: " + gl.glIsEnabled(GL2ES2.GL_MULTISAMPLE));
+		}
+
+		float ang = 0;
+		float zoom = -70;
+		float xTran = -10;
+		float yTran = 10;
+
+		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);
+
+			textRenderer.resetMatrix();
+			textRenderer.translate(xTran, yTran, zoom);
+			textRenderer.rotate(ang, 0, 1, 0);
+
+			String text1 = "abcdef\nghijklmn\nopqrstuv\nwxyz\n0123456789";
+			String text2 = text1.toUpperCase();
+
+			Font font = textRenderer.createFont(pointFactory, "Lucida Sans Regular",40);		
+			float[] position = new float[]{0,0,0};
+
+			try {
+				textRenderer.setAlpha(1.0f);
+				textRenderer.setColor(0.0f, 0.0f, 1.0f);
+				gl.glSampleCoverage(0.75f, false);
+				textRenderer.renderString3D(font, text2, position, 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);
+
+			textRenderer.reshape(drawable, 45.0f, width, 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) {
+			textRenderer.clearCached();
+		}
+	}
+}