Relocate Hw*Renderer -> opengl subpackage

4 files changed, 853 insertions, 0 deletions

diff --git a/src/com/jogamp/graph/curve/opengl/HwRegionRenderer.java b/src/com/jogamp/graph/curve/opengl/HwRegionRenderer.java
new file mode 100755
index 000000000..9fa67a0be
--- /dev/null
+++ b/src/com/jogamp/graph/curve/opengl/HwRegionRenderer.java
@@ -0,0 +1,388 @@
+/**

+ * 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 HwRegionRenderer {

+	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 HwRegionRenderer(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 HwRegionRenderer(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, HwRegionRenderer.class,

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

+		ShaderCode rsFp = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, 1, HwRegionRenderer.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();

+	}

+}

diff --git a/src/com/jogamp/graph/curve/opengl/HwTextRenderer.java b/src/com/jogamp/graph/curve/opengl/HwTextRenderer.java
new file mode 100644
index 000000000..f9a104ad0
--- /dev/null
+++ b/src/com/jogamp/graph/curve/opengl/HwTextRenderer.java
@@ -0,0 +1,353 @@
+/**
+ * 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.HashMap;
+import java.util.Iterator;
+
+import javax.media.opengl.GL2ES2;
+import javax.media.opengl.GLException;
+import javax.media.opengl.GLUniformData;
+import javax.media.opengl.fixedfunc.GLMatrixFunc;
+
+import jogamp.graph.curve.text.GlyphString;
+import jogamp.graph.font.FontInt;
+import jogamp.graph.geom.plane.AffineTransform;
+import jogamp.graph.geom.plane.Path2D;
+
+import com.jogamp.graph.curve.Region;
+import com.jogamp.graph.font.Font;
+import com.jogamp.graph.geom.Vertex;
+import com.jogamp.graph.geom.opengl.SVertex;
+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 HwTextRenderer {
+	protected static final boolean DEBUG = Debug.debug("TextRenderer");
+	static final boolean FONTTOOL_CUSTOM = false;
+	
+	private ShaderState st = new ShaderState();
+	
+	private PMVMatrix pmvMatrix = new PMVMatrix();
+	private GLUniformData mgl_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 GLUniformData mgl_sharpness = new GLUniformData("p1y", 0.5f);
+    private GLUniformData mgl_alpha = new GLUniformData("g_alpha", 1.0f);
+    private GLUniformData mgl_color = new GLUniformData("g_color", 3, FloatBuffer.allocate(3));
+    private GLUniformData mgl_strength = new GLUniformData("a_strength", 1.8f);
+    	
+	private boolean initialized = false;	
+	
+	private int regionType = Region.SINGLE_PASS;
+	
+	private HashMap<String, GlyphString> strings = new HashMap<String, GlyphString>();
+	private final Vertex.Factory<? extends Vertex> pointFactory;
+	
+	int win_width = 0;
+	int win_height = 0;
+	
+	/** 
+	 * Create a Hardware accelerated Text Renderer.
+	 * @param context OpenGL rendering context
+	 * @param factory optional Point.Factory for Vertex construction. Default is Vertex.Factory.
+	 */
+	public HwTextRenderer(Vertex.Factory<? extends Vertex> factory, int type) {
+		this.pointFactory = (null != factory) ? factory : SVertex.factory();
+		this.regionType = type;
+	}
+
+	/** 
+	 * Initialize shaders and bindings for GPU based text Rendering, 
+	 * should be called only once.
+	 * Leaves the renderer enables, ie ShaderState on.
+	 *  
+	 * @param drawable the current drawable
+	 * @param shapvalue shaprness around the off-curve vertices
+	 * @return true if init succeeded, false otherwise
+	 */
+	public boolean init(GL2ES2 gl){
+		if(initialized){
+			if(DEBUG) {
+				System.err.println("HWTextRenderer: Already initialized!");
+			}
+			return true;
+		}
+		
+		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("HWTextRenderer: VBO Supported = " + VBOsupported);
+		}
+		
+		if(!VBOsupported){
+			return false;
+		}
+		
+		gl.glEnable(GL2ES2.GL_BLEND);
+		gl.glBlendFunc(GL2ES2.GL_SRC_ALPHA, GL2ES2.GL_ONE_MINUS_SRC_ALPHA);
+		
+        ShaderCode rsVp = ShaderCode.create(gl, GL2ES2.GL_VERTEX_SHADER, 1, HwTextRenderer.class,
+                "shader", "shader/bin", "curverenderer");
+        ShaderCode rsFp = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, 1, HwTextRenderer.class,
+                "shader", "shader/bin", "curverenderer");
+
+        ShaderProgram sp = new ShaderProgram();
+        sp.add(rsVp);
+        sp.add(rsFp);
+
+        if(!sp.link(gl, System.err)) {
+            throw new GLException("HWTextRenderer: Couldn't link program: "+sp);
+        }
+
+        st.attachShaderProgram(gl, sp);
+        gl.glBindAttribLocation(sp.id(), 0, "v_position");
+        gl.glBindAttribLocation(sp.id(), 1, "texCoord");
+		
+		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(null);
+		
+		mgl_PMVMatrix = new GLUniformData("mgl_PMVMatrix", 4, 4, pmvMatrix.glGetPMvMatrixf());		    		
+		if(!st.glUniform(gl, mgl_PMVMatrix)) {
+			if(DEBUG){
+				System.err.println("Error setting PMVMatrix in shader: "+st);
+			}
+			return false;
+		}
+		
+		if(!st.glUniform(gl, mgl_sharpness)) {
+			if(DEBUG){
+				System.err.println("Error setting sharpness in shader: "+st);
+			}
+			return false;
+		}
+				
+		if(!st.glUniform(gl, mgl_alpha)) {
+			if(DEBUG){
+				System.err.println("Error setting global alpha in shader: "+st);
+			}
+			return false;
+		}		
+		
+		if(!st.glUniform(gl, mgl_color)) {
+			if(DEBUG){
+				System.err.println("Error setting global color in shader: "+st);
+			}
+			return false;
+		}		
+		
+		if(!st.glUniform(gl, mgl_strength)) {
+			System.err.println("Error setting antialias strength in shader: "+st);
+		}
+		
+		if(DEBUG) {
+			System.err.println("HWTextRenderer initialized: " + Thread.currentThread()+" "+st);
+		}
+		initialized = true;
+		return true;
+	}
+	
+	public void dispose(GL2ES2 gl) {
+	    st.destroy(gl);
+	    flushCash();
+	}
+	
+	public float getAlpha() {
+		return mgl_alpha.floatValue();
+	}
+	
+	public ShaderState getShaderState() {
+	    return st;
+	}
+	
+	public void setAlpha(GL2ES2 gl, float alpha_t) {
+	    mgl_alpha.setData(alpha_t);
+	    if(null != gl && st.inUse()) {
+	        st.glUniform(gl, mgl_alpha);
+	    }
+	}
+	
+	public void setColor(GL2ES2 gl, float r, float g, float b){
+	    FloatBuffer fb = (FloatBuffer) mgl_color.getBuffer();
+	    fb.put(0, r);
+	    fb.put(1, r);
+	    fb.put(2, r);
+	    if(null != gl && st.inUse()) {
+	        st.glUniform(gl, mgl_color);
+	    }
+	}
+	
+	public final PMVMatrix matrix() { return pmvMatrix; }
+	
+	public void rotate(GL2ES2 gl, float angle, float x, float y, float z){
+		pmvMatrix.glRotatef(angle, x, y, z);
+		if(null != gl && st.inUse()) {
+		    st.glUniform(gl, mgl_PMVMatrix);
+		}
+	}
+	public void translate(GL2ES2 gl, float x, float y, float z){
+		pmvMatrix.glTranslatef(x, y, z);
+		if(null != gl && st.inUse()) {
+		    st.glUniform(gl, mgl_PMVMatrix);
+		}
+	}
+	
+	public  void resetMatrix(GL2ES2 gl){
+		pmvMatrix.glMatrixMode(GLMatrixFunc.GL_MODELVIEW);
+		pmvMatrix.glLoadIdentity();
+		if(null != gl && st.inUse()) {
+		    st.glUniform(gl, mgl_PMVMatrix);
+		}
+	}
+
+    public  void setMatrix(GL2ES2 gl){
+        if(null != gl && st.inUse()) {
+            st.glUniform(gl, mgl_PMVMatrix);
+        }
+    }
+    	
+    public  void updateAllShaderValues(GL2ES2 gl) {
+        if(null != gl && st.inUse()) {
+            st.glUniform(gl, mgl_PMVMatrix);
+            st.glUniform(gl, mgl_alpha);
+            st.glUniform(gl, mgl_color);
+            st.glUniform(gl, mgl_strength);
+        }
+    }
+    
+	/**
+	 * @param gl
+	 * @param angle
+	 * @param ratio
+	 * @param near
+	 * @param far
+	 * @return
+	 */
+	public boolean reshapePerspective(GL2ES2 gl, float angle, int width, int height, float near, float far){
+		win_width = width;
+		win_height = height;
+		float ratio = (float)width/(float)height;
+		pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
+		pmvMatrix.glLoadIdentity();
+		pmvMatrix.gluPerspective(angle, ratio, near, far);
+		
+        if(null != gl) {
+            st.glUniform(gl, mgl_PMVMatrix);
+        }
+		
+		return true;
+	}
+	
+	public boolean reshapeOrtho(GL2ES2 gl, int width, int height, float near, float far) {
+        win_width = width;
+        win_height = height;
+        pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
+        pmvMatrix.glLoadIdentity();
+        pmvMatrix.glOrthof(0, width, 0, height, near, far);
+        
+        if(null != gl) {
+            st.glUniform(gl, mgl_PMVMatrix);
+        }
+        
+        return true;        
+	}
+
+	private GlyphString createString(GL2ES2 gl, Font font, int size, String str) {
+		AffineTransform affineTransform = new AffineTransform(pointFactory);
+		
+		Path2D[] paths = new Path2D[str.length()];
+		((FontInt)font).getOutline(str, size, affineTransform, paths);
+		
+		GlyphString glyphString = new GlyphString(pointFactory, font.getName(), str);
+		glyphString.createfromFontPath(paths, affineTransform);
+		
+		glyphString.generateRegion(gl.getContext(), mgl_sharpness.floatValue(), st, regionType);
+		return glyphString;
+	}
+	
+	
+	/** Render the String in 3D space wrt to the font provided at the position provided
+	 * the outlines will be generated, if not yet generated
+	 * @param font font to be used
+	 * @param str text to be rendered 
+	 * @param position the lower left corner of the string 
+     * @param fontSize font size
+	 * @param texSize texture size for multipass render
+	 * @throws Exception if TextRenderer not initialized
+	 */
+	public void renderString3D(GL2ES2 gl, Font font, String str, float[] position, int fontSize, int texSize) {
+		if(!initialized){
+			throw new GLException("HWTextRenderer: not initialized!");
+		}
+		String fontStrHash = getTextHashCode(font, str, fontSize);
+		GlyphString glyphString = strings.get(fontStrHash);
+		if(null == glyphString) {
+			glyphString = createString(gl, font, fontSize, str);
+			strings.put(fontStrHash, glyphString);
+		}
+		
+		glyphString.renderString3D(pmvMatrix, win_width, win_height, texSize);
+	}
+	
+	private String getTextHashCode(Font font, String str, int fontSize) {
+	    // FIXME: use integer hash code
+		return font.getName() + "." + str.hashCode() + "." + fontSize;
+	}
+
+	/** Clears the cached string curves
+	 *  and destorys underlying buffers
+	 */
+	public void flushCash() {
+		Iterator<GlyphString> iterator = strings.values().iterator();
+		while(iterator.hasNext()){
+			GlyphString glyphString = iterator.next();
+			glyphString.destroy();
+		}
+		strings.clear();
+	}
+}
diff --git a/src/com/jogamp/graph/curve/opengl/shader/curverenderer.fp b/src/com/jogamp/graph/curve/opengl/shader/curverenderer.fp
new file mode 100644
index 000000000..2b3a0ce1d
--- /dev/null
+++ b/src/com/jogamp/graph/curve/opengl/shader/curverenderer.fp
@@ -0,0 +1,99 @@
+//#version 100
+
+uniform float p1y;
+uniform float g_alpha;
+uniform vec3 g_color;
+uniform float a_strength;
+
+varying vec2 v_texCoord;
+
+vec3 b_color = vec3(0.0, 0.0, 0.0);
+
+uniform sampler2D texture;
+vec4 weights = vec4(0.075, 0.06, 0.045, 0.025);
+
+void main (void)
+{
+	vec2 rtex = vec2(abs(v_texCoord.x),abs(v_texCoord.y));
+	vec3 c = g_color;
+	
+	float alpha = 0.0;
+	
+	if((v_texCoord.x == 0.0) && (v_texCoord.y == 0.0)){
+	 	alpha = g_alpha;
+	}
+	else if((v_texCoord.x >= 5.0)){
+		vec2 dfx = dFdx(v_texCoord);
+		vec2 dfy = dFdy(v_texCoord);
+		
+		vec2 size = 1.0/textureSize(texture,0); //version 130
+		rtex -= 5.0;
+		vec4 t = texture2D(texture, rtex)* 0.18;
+
+		t += texture2D(texture, rtex + size*(vec2(1, 0)))*weights.x;
+		t +=  texture2D(texture, rtex - size*(vec2(1, 0)))*weights.x;
+		t +=  texture2D(texture, rtex + size*(vec2(0, 1)))*weights.x;
+		t +=  texture2D(texture, rtex - size*(vec2(0, 1)))*weights.x;
+		
+		t += texture2D(texture, rtex + 2.0*size*(vec2(1, 0))) *weights.y;
+		t +=  texture2D(texture, rtex - 2.0*size*(vec2(1, 0)))*weights.y;
+		t +=  texture2D(texture, rtex + 2.0*size*(vec2(0, 1)))*weights.y; 
+		t +=  texture2D(texture, rtex - 2.0*size*(vec2(0, 1)))*weights.y;
+		
+		t += texture2D(texture, rtex + 3.0*size*(vec2(1, 0))) *weights.z;
+		t +=  texture2D(texture, rtex - 3.0*size*(vec2(1, 0)))*weights.z;
+		t +=  texture2D(texture, rtex + 3.0*size*(vec2(0, 1)))*weights.z;
+		t +=  texture2D(texture, rtex - 3.0*size*(vec2(0, 1)))*weights.z;
+		
+		t += texture2D(texture, rtex + 4.0*size*(vec2(1, 0))) *weights.w;
+		t +=  texture2D(texture, rtex - 4.0*size*(vec2(1, 0)))*weights.w;
+		t +=  texture2D(texture, rtex + 4.0*size*(vec2(0, 1)))*weights.w;
+		t +=  texture2D(texture, rtex - 4.0*size*(vec2(0, 1)))*weights.w;
+		
+		if(t.w == 0.0){
+			discard;
+		}
+		
+		c = t.xyz;
+		alpha = g_alpha* t.w;
+	}
+	///////////////////////////////////////////////////////////
+	else if ((v_texCoord.x > 0.0) && (rtex.y > 0.0 || rtex.x == 1.0)){
+  		vec2 dtx = dFdx(rtex);
+  		vec2 dty = dFdy(rtex);
+  		
+  		rtex.y -= 0.1;
+  		if(rtex.y < 0.0) {
+  			if(v_texCoord.y < 0.0)
+  				discard;
+  			else{
+  				rtex.y = 0.0;
+  			}
+  		}
+  		
+  		vec2 f = vec2((dtx.y - 2.0*p1y*dtx.x + 4.0*p1y*rtex.x*dtx.x), (dty.y - 2.0*p1y*dty.x + 4.0*p1y*rtex.x*dty.x));
+  		
+  		float position = rtex.y - ((2.0 * rtex.x * p1y) * (1.0 - rtex.x));
+  		float d = position/(length(f));
+
+		float a = (0.5 - d * sign(v_texCoord.y));  
+		
+		
+		if (a >= 1.0)  { 
+	    	alpha = g_alpha;
+	    //	c = vec3(1.0,1.0,1.0);
+    	} 
+  		else if (a <= 0.0) {
+   			alpha = 0.0;//discard;
+   		//	c = vec3(0.0,0.0,0.0);
+   			
+   		}
+  		else {           
+    		alpha = g_alpha*a;
+    	//	c = vec3(a,a,a);
+    		mix(b_color,g_color, a);
+    	}  
+	}
+	
+    gl_FragColor = vec4(c, alpha);
+}
diff --git a/src/com/jogamp/graph/curve/opengl/shader/curverenderer.vp b/src/com/jogamp/graph/curve/opengl/shader/curverenderer.vp
new file mode 100644
index 000000000..bc9ecb41e
--- /dev/null
+++ b/src/com/jogamp/graph/curve/opengl/shader/curverenderer.vp
@@ -0,0 +1,13 @@
+//#version 100
+
+uniform mat4 mgl_PMVMatrix[2];
+attribute vec4 v_position;
+attribute vec2 texCoord; 
+
+varying vec2 v_texCoord;
+
+void main(void)
+{
+  gl_Position = mgl_PMVMatrix[0] * mgl_PMVMatrix[1] * v_position;
+  v_texCoord = texCoord.st;
+}
\ No newline at end of file