Refactor: Public *Renderer / Unify Region Demos / Using own Screenshot (non AWT, plain GL2ES2)

Refactor: Public *Renderer
- Sharing common base abstract class Renderer.java
- Having public abstract classes RegionRenderer and TextRenderer
- Implementation non public, accessed via factory

- + shared code
- + clean API (same stuff)

Unify Region Demos

- reduced code / path, sharing common demo/test features Text/Region

Using own Screenshot (non AWT, plain GL2ES2)

- Remove AWT dependency
- Allow GL2ES2 screenshots
- Less complex

1 files changed, 112 insertions, 388 deletions

diff --git a/src/com/jogamp/graph/curve/opengl/RegionRenderer.java b/src/com/jogamp/graph/curve/opengl/RegionRenderer.java
index e75ca25cd..4be1506d5 100755..100644
--- a/src/com/jogamp/graph/curve/opengl/RegionRenderer.java
+++ b/src/com/jogamp/graph/curve/opengl/RegionRenderer.java
@@ -1,388 +1,112 @@
-/**

- * 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 com.jogamp.graph.curve.opengl;

-

-import java.nio.FloatBuffer;

-import java.util.ArrayList;

-import java.util.HashMap;

-import java.util.Iterator;

-

-import javax.media.opengl.GL2ES2;

-import javax.media.opengl.GLAutoDrawable;

-import javax.media.opengl.GLContext;

-import javax.media.opengl.GLException;

-import javax.media.opengl.GLUniformData;

-import javax.media.opengl.fixedfunc.GLMatrixFunc;

-

-import com.jogamp.graph.curve.OutlineShape;

-import com.jogamp.graph.curve.Region;

-import com.jogamp.graph.curve.RegionFactory;

-import com.jogamp.graph.geom.Triangle;

-import com.jogamp.graph.geom.Vertex;

-

-import jogamp.opengl.Debug;

-import com.jogamp.opengl.util.PMVMatrix;

-import com.jogamp.opengl.util.glsl.ShaderCode;

-import com.jogamp.opengl.util.glsl.ShaderProgram;

-import com.jogamp.opengl.util.glsl.ShaderState;

-

-public class RegionRenderer {

-	protected static final boolean DEBUG = Debug.debug("RegionRenderer");

-	

-	private ShaderState st;

-	private PMVMatrix pmvMatrix = new PMVMatrix();

-	

-	/**Sharpness is equivalent to the value of t value of texture coord

-	 * on the off-curve vertex. The high value of sharpness will 

-	 * result in high curvature.

-	 */

-	private float sharpness = 0.5f;

-	private float alpha = 1.0f;

-	private float strength = 3.0f;

-	private boolean initialized = false;

-	

-	private int regionType = Region.SINGLE_PASS;

-	

-	private GLContext context;

-	private FloatBuffer color = FloatBuffer.allocate(3);

-	private HashMap<Integer, Region> regions = new HashMap<Integer, Region>();

-

-	/** Create a Hardware accelerated Region Renderer

-	 * @param context OpenGL rendering context

-	 * @param factory optional Point.Factory for Vertex construction. Default is Vertex.Factory.

-	 */

-	public RegionRenderer(GLContext context) {

-		this.context = context;

-		init(context, 0.5f);

-	}

-	/** Create a Hardware accelerated Region Renderer

-	 * @param context OpenGL rendering context

-	 * @param type region type (single or multipass)

-	 */

-	public RegionRenderer(GLContext context, int type) {

-		this.context = context;

-		this.regionType = type;

-		init(context, 0.5f);

-	}

-	

-	private boolean init(GLContext context, float sharpvalue){

-		if(initialized){

-			if(DEBUG) {

-				System.err.println("HWRegionRenderer: Already initialized!");

-			}

-			return true;

-		}

-		sharpness = sharpvalue;

-		

-		GL2ES2 gl = context.getGL().getGL2ES2();

-		

-		boolean VBOsupported = gl.isFunctionAvailable("glGenBuffers") &&

-			gl.isFunctionAvailable("glBindBuffer") &&

-			gl.isFunctionAvailable("glBufferData") &&

-			gl.isFunctionAvailable("glDrawElements") &&

-			gl.isFunctionAvailable("glVertexAttribPointer") &&

-			gl.isFunctionAvailable("glDeleteBuffers");

-		

-		if(DEBUG) {

-			System.err.println("HWRegionRenderer: VBO Supported = " + VBOsupported);

-		}

-		

-		if(!VBOsupported){

-			return false;

-		}

-		

-		gl.setSwapInterval(1);

-		

-		gl.glEnable(GL2ES2.GL_BLEND);

-		gl.glBlendFunc(GL2ES2.GL_SRC_ALPHA, GL2ES2.GL_ONE_MINUS_SRC_ALPHA);

-		

-		initShader(gl);

-		

-		st.glUseProgram(gl, true);

-

-		pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);

-		pmvMatrix.glLoadIdentity();

-		pmvMatrix.glMatrixMode(GLMatrixFunc.GL_MODELVIEW);

-		pmvMatrix.glLoadIdentity();

-		

-		pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);

-		pmvMatrix.glLoadIdentity();

-		resetMatrix();

-

-		if(!st.glUniform(gl, new GLUniformData("mgl_PMVMatrix", 4, 4, pmvMatrix.glGetPMvMatrixf()))) {

-			if(DEBUG){

-				System.err.println("Error setting PMVMatrix in shader: "+st);

-			}

-			return false;

-		}

-		if(!st.glUniform(gl, new GLUniformData("p1y", sharpness))) {

-			if(DEBUG){

-				System.err.println("Error setting sharpness in shader: "+st);

-			}

-			return false;

-		}

-		if(!st.glUniform(gl, new GLUniformData("g_alpha", alpha))) {

-			if(DEBUG){

-				System.err.println("Error setting global alpha in shader: "+st);

-			}

-			return false;

-		}

-		if(!st.glUniform(gl, new GLUniformData("g_color", 3, color))) {

-			if(DEBUG){

-				System.err.println("Error setting global color in shader: "+st);

-			}

-			return false;

-		}

-		if(!st.glUniform(gl, new GLUniformData("a_strength", strength))) {

-			System.err.println("Error setting antialias strength in shader: "+st);

-		}

-		st.glUseProgram(gl, false);

-		

-		if(DEBUG) {

-			System.err.println("HWRegionRenderer initialized: " + Thread.currentThread()+" "+st);

-		}

-		initialized = true;

-		return true;

-	}

-	

-	public float getAlpha() {

-		return alpha;

-	}

-	public void setAlpha(float alpha_t) {

-		alpha = alpha_t;

-	}

-	

-	public void setColor(float r, float g, float b){

-		color.put(r);

-		color.put(g);

-		color.put(b);

-		color.rewind();

-	}

-	

-	public void rotate(float angle, float x, float y, float z){

-		pmvMatrix.glRotatef(angle, x, y, z);

-	}

-	public void translate(float x, float y, float z){

-		pmvMatrix.glTranslatef(x, y, z);

-	}

-	

-	public  void resetMatrix(){

-		pmvMatrix.glMatrixMode(GLMatrixFunc.GL_MODELVIEW);

-		pmvMatrix.glLoadIdentity();

-	}

-	

-	/**

-	 * @param drawable

-	 * @param angle

-	 * @param ratio

-	 * @param near

-	 * @param far

-	 * @return

-	 */

-	public boolean reshape(GLAutoDrawable drawable, float angle, float ratio, float near, float far){

-		pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);

-		pmvMatrix.glLoadIdentity();

-		pmvMatrix.gluPerspective(angle, ratio, near, far);

-		

-		if(null==st) {

-			if(DEBUG){

-				System.err.println("HWRegionRenderer: Shader State is null, or not");

-			}

-			return false;

-		}

-		GL2ES2 gl = drawable.getGL().getGL2ES2();

-

-		st.glUseProgram(gl, true);

-		GLUniformData ud = st.getUniform("mgl_PMVMatrix");

-		if(null!=ud) {

-			st.glUniform(gl, ud);

-		} 

-		st.glUseProgram(gl, false);

-		return true;

-	}

-

-	private void initShader(GL2ES2 gl) {

-		ShaderCode rsVp = ShaderCode.create(gl, GL2ES2.GL_VERTEX_SHADER, 1, RegionRenderer.class,

-				"shader", "shader/bin", "curverenderer");

-		ShaderCode rsFp = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, 1, RegionRenderer.class,

-				"shader", "shader/bin", "curverenderer");

-

-		ShaderProgram sp = new ShaderProgram();

-		sp.add(rsVp);

-		sp.add(rsFp);

-

-		if(!sp.link(gl, System.err)) {

-			throw new GLException("HWRegionRenderer: Couldn't link program: "+sp);

-		}

-

-		st = new ShaderState();

-		st.attachShaderProgram(gl, sp);

-		gl.glBindAttribLocation(sp.id(), 0, "v_position");

-		gl.glBindAttribLocation(sp.id(), 1, "texCoord");

-	}

-	

-	private Region createRegion(OutlineShape outlineShape) {

-		Region region = RegionFactory.create(context, st, regionType);

-		

-		outlineShape.transformOutlines(OutlineShape.QUADRATIC_NURBS);

-		

-		ArrayList<Triangle<Vertex>> triangles = (ArrayList<Triangle<Vertex>>) outlineShape.triangulate(sharpness);

-		ArrayList<Vertex> vertices = (ArrayList<Vertex>) outlineShape.getVertices();

-		region.addVertices(vertices);

-		region.addTriangles(triangles);

-		

-		region.update();

-		return region;

-	}

-	

-	private Region createRegion(OutlineShape[] outlineShapes) {

-		Region region = RegionFactory.create(context, st, regionType);

-		

-		int numVertices = region.getNumVertices();

-		

-		for(OutlineShape outlineShape:outlineShapes){

-			outlineShape.transformOutlines(OutlineShape.QUADRATIC_NURBS);

-

-			ArrayList<Triangle<Vertex>> triangles = outlineShape.triangulate(sharpness);

-			region.addTriangles(triangles);

-			

-			ArrayList<Vertex> vertices = outlineShape.getVertices();

-			for(Vertex vert:vertices){

-				vert.setId(numVertices++);

-			}

-			region.addVertices(vertices);

-		}

-		

-		region.update();

-		return region;

-	}

-	

-	

-	/** Render outline in 3D space at the position provided

-	 *  the triangles of the shapes will be generated, if not yet generated

-	 * @param outlineShape the OutlineShape to Render.

-	 * @param position the initial translation of the outlineShape. 

-	 * @throws Exception if HwRegionRenderer not initialized

-	 */

-	public void renderOutlineShape(OutlineShape outlineShape, float[] position) throws Exception{

-		if(!initialized){

-			throw new Exception("HWRegionRenderer: not initialized!");

-		}

-		int hashCode = getHashCode(outlineShape);

-		Region region = regions.get(hashCode);

-		

-		if(null == region) {

-			region = createRegion(outlineShape);

-			regions.put(hashCode, region);

-		}

-		

-		GL2ES2 gl = context.getGL().getGL2ES2();

-		st.glUseProgram(gl, true);

-		GLUniformData ud = st.getUniform("mgl_PMVMatrix");

-		if(null!=ud) {

-			st.glUniform(gl, ud);

-		} 

-		if(!st.glUniform(gl, new GLUniformData("g_alpha", alpha))) {

-			System.err.println("Error setting global alpha in shader: "+st);

-		}	

-		GLUniformData gcolorUD = st.getUniform("g_color");

-		if(null!=gcolorUD) {

-			st.glUniform(gl, gcolorUD);

-		} 

-		if(!st.glUniform(gl, new GLUniformData("a_strength", strength))) {

-			System.err.println("Error setting antialias strength in shader: "+st);

-		}

-		

-		region.render(null, 0, 0, 0);

-		st.glUseProgram(gl, false);

-	}

-	

-	/** Render a list of Outline shapes combined in one region

-	 *  at the position provided the triangles of the 

-	 *  shapes will be generated, if not yet generated

-	 * @param outlineShapes the list of OutlineShapes to Render.

-	 * @param position the initial translation of the outlineShapes.

-	 * @throws Exception if HwRegionRenderer not initialized

-	 */

-	public void renderOutlineShapes(OutlineShape[] outlineShapes, float[] position) throws Exception{

-		if(!initialized){

-			throw new Exception("HWRegionRenderer: not initialized!");

-		}

-		

-		int hashCode = getHashCode(outlineShapes);

-		Region region = regions.get(hashCode);

-		

-		if(null == region) {

-			region = createRegion(outlineShapes);

-			regions.put(hashCode, region);

-		}

-		

-		GL2ES2 gl = context.getGL().getGL2ES2();

-		st.glUseProgram(gl, true);

-		GLUniformData ud = st.getUniform("mgl_PMVMatrix");

-		if(null!=ud) {

-			st.glUniform(gl, ud);

-		} 

-		if(!st.glUniform(gl, new GLUniformData("g_alpha", alpha))) {

-			System.err.println("Error setting global alpha in shader: "+st);

-		}	

-		GLUniformData gcolorUD = st.getUniform("g_color");

-		if(null!=gcolorUD) {

-			st.glUniform(gl, gcolorUD);

-		} 

-		if(!st.glUniform(gl, new GLUniformData("a_strength", strength))) {

-			System.err.println("Error setting antialias strength in shader: "+st);

-		}

-		region.render(null, 0, 0, 0);

-		st.glUseProgram(gl, false);

-	}

-	

-	private int getHashCode(OutlineShape outlineShape){

-		return outlineShape.hashCode();

-	}

-	

-	private int getHashCode(OutlineShape[] outlineShapes){

-		int hashcode = 0;

-		for(OutlineShape outlineShape:outlineShapes){

-			hashcode += getHashCode(outlineShape);

-		}

-		return hashcode;

-	}

-

-	/** Clears the cached string curves

-	 *  and destorys underlying buffers

-	 */

-	public void clearCached() {

-		Iterator<Region> iterator = regions.values().iterator();

-		while(iterator.hasNext()){

-			Region region = iterator.next();

-			region.destroy();

-		}

-		regions.clear();

-	}

-}

+package com.jogamp.graph.curve.opengl;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+
+import javax.media.opengl.GL2ES2;
+
+import com.jogamp.graph.curve.OutlineShape;
+import com.jogamp.graph.curve.Region;
+import com.jogamp.graph.curve.RegionFactory;
+import com.jogamp.graph.geom.Triangle;
+import com.jogamp.graph.geom.Vertex;
+
+public abstract class RegionRenderer extends Renderer {
+    
+    /** Create a Hardware accelerated Region Renderer
+     */
+    public static RegionRenderer create(Vertex.Factory<? extends Vertex> factory, int type) {
+        return new jogamp.graph.curve.opengl.RegionRendererImpl01(factory, type);
+    }
+    
+    public RegionRenderer(Vertex.Factory<? extends Vertex> factory, int type) {
+        super(factory, type);
+    }
+    
+    /** Render an array of Outline shapes combined in one region
+     *  at the position provided the triangles of the 
+     *  shapes will be generated, if not yet generated
+     * @param outlineShapes array of OutlineShapes to Render.
+     * @param position the initial translation of the outlineShapes.
+     * @param texSize texture size for multipass render     * 
+     * @throws Exception if HwRegionRenderer not initialized
+     */
+    public abstract void renderOutlineShapes(GL2ES2 gl, OutlineShape[] outlineShapes, float[] position, int texSize);
+
+    /** Render outline in 3D space at the position provided
+     *  the triangles of the shapes will be generated, if not yet generated
+     * @param outlineShape the OutlineShape to Render.
+     * @param position the initial translation of the outlineShape. 
+     * @param texSize texture size for multipass render
+     * @throws Exception if HwRegionRenderer not initialized
+     */
+    public abstract void renderOutlineShape(GL2ES2 gl, OutlineShape outlineShape, float[] position, int texSize);
+
+    protected HashMap<Integer, Region> regions = new HashMap<Integer, Region>();
+
+    public void flushCash() {
+        Iterator<Region> iterator = regions.values().iterator();
+        while(iterator.hasNext()){
+            Region region = iterator.next();
+            region.destroy();
+        }
+        regions.clear();
+    }       
+
+    /**
+     * @param sharpness parameter for Region generation
+     * @return the resulting Region inclusive the generated region
+     */
+    protected Region createRegion(GL2ES2 gl, OutlineShape outlineShape, float sharpness) {
+        Region region = RegionFactory.create(gl.getContext(), st, regionType);
+        
+        outlineShape.transformOutlines(OutlineShape.QUADRATIC_NURBS);
+        
+        ArrayList<Triangle<Vertex>> triangles = (ArrayList<Triangle<Vertex>>) outlineShape.triangulate(sharpness);
+        ArrayList<Vertex> vertices = (ArrayList<Vertex>) outlineShape.getVertices();
+        region.addVertices(vertices);
+        region.addTriangles(triangles);
+        
+        region.update();
+        return region;
+    }
+    
+    /**
+     * @param sharpness parameter for Region generation
+     * @return the resulting Region inclusive the generated region
+     */
+    protected Region createRegion(GL2ES2 gl, OutlineShape[] outlineShapes, float sharpness) {
+        Region region = RegionFactory.create(gl.getContext(), st, regionType);
+        
+        int numVertices = region.getNumVertices();
+        
+        for(OutlineShape outlineShape:outlineShapes){
+            outlineShape.transformOutlines(OutlineShape.QUADRATIC_NURBS);
+
+            ArrayList<Triangle<Vertex>> triangles = outlineShape.triangulate(sharpness);
+            region.addTriangles(triangles);
+            
+            ArrayList<Vertex> vertices = outlineShape.getVertices();
+            for(Vertex vert:vertices){
+                vert.setId(numVertices++);
+            }
+            region.addVertices(vertices);
+        }
+        
+        region.update();
+        return region;
+    }
+    
+    protected static int getHashCode(OutlineShape outlineShape){
+        return outlineShape.hashCode();
+    }
+    
+    protected static int getHashCode(OutlineShape[] outlineShapes){
+        int hashcode = 0;
+        for(OutlineShape outlineShape:outlineShapes){
+            hashcode += getHashCode(outlineShape);
+        }
+        return hashcode;
+    }       
+}
\ No newline at end of file