1 files changed, 125 insertions, 0 deletions
diff --git a/src/jogl/classes/com/jogamp/graph/curve/opengl/GLRegion.java b/src/jogl/classes/com/jogamp/graph/curve/opengl/GLRegion.java
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+++ b/src/jogl/classes/com/jogamp/graph/curve/opengl/GLRegion.java
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+/**
+ * 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.util.ArrayList;
+
+import javax.media.opengl.GL2ES2;
+import com.jogamp.opengl.util.PMVMatrix;
+
+import com.jogamp.graph.curve.OutlineShape;
+import com.jogamp.graph.curve.Region;
+import com.jogamp.graph.geom.Triangle;
+import com.jogamp.graph.geom.Vertex;
+import jogamp.graph.curve.opengl.RegionFactory;
+
+/** A Region is the OGL binding of one or more OutlineShapes
+ *  Defined by its vertices and generated triangles. The Region
+ *  defines the final shape of the OutlineShape(s), which shall produced a shaded 
+ *  region on the screen.
+ *  
+ *  Implementations of the Region shall take care of the OGL 
+ *  binding of the depending on its context, profile.
+ * 
+ * @see RegionFactory, OutlineShape
+ */
+public abstract class GLRegion extends Region {    
+    
+    /** Create an ogl {@link GLRegion} defining the list of {@link OutlineShape}.
+     * Combining the Shapes into single buffers.
+     * @return the resulting Region inclusive the generated region
+     */
+    public static GLRegion create(OutlineShape[] outlineShapes, int renderModes) {
+        final GLRegion region = RegionFactory.create(renderModes);
+        
+        int numVertices = region.getNumVertices();
+        
+        for(OutlineShape outlineShape:outlineShapes){
+            outlineShape.transformOutlines(OutlineShape.VerticesState.QUADRATIC_NURBS);
+    
+            ArrayList<Triangle> triangles = outlineShape.triangulate();
+            region.addTriangles(triangles);
+            
+            ArrayList<Vertex> vertices = outlineShape.getVertices();
+            for(Vertex vert:vertices){
+                vert.setId(numVertices++);
+            }
+            region.addVertices(vertices);
+        }
+        
+        return region;
+    }
+
+    /** 
+     * Create an ogl {@link GLRegion} defining this {@link OutlineShape}
+     * @return the resulting Region.
+     */
+    public static GLRegion create(OutlineShape outlineShape, int renderModes) {
+        final GLRegion region = RegionFactory.create(renderModes);
+        
+        outlineShape.transformOutlines(OutlineShape.VerticesState.QUADRATIC_NURBS);
+        ArrayList<Triangle> triangles = (ArrayList<Triangle>) outlineShape.triangulate();
+        ArrayList<Vertex> vertices = (ArrayList<Vertex>) outlineShape.getVertices();
+        region.addVertices(vertices);
+        region.addTriangles(triangles);
+        return region;
+    }        
+    
+    protected GLRegion(int renderModes) {
+        super(renderModes);
+    }
+    
+    /** Updates a graph region by updating the ogl related
+     *  objects for use in rendering if {@link #isDirty()}.
+     *  <p>Allocates the ogl related data and initializes it the 1st time.<p>  
+     *  <p>Called by {@link #draw(GL2ES2, RenderState, int, int, int)}.</p>
+     * @param rs TODO
+     */
+    protected abstract void update(GL2ES2 gl, RenderState rs);
+    
+    /** Delete and clean the associated OGL
+     *  objects
+     */
+    public abstract void destroy(GL2ES2 gl, RenderState rs);
+    
+    /** Renders the associated OGL objects specifying
+     * current width/hight of window for multi pass rendering
+     * of the region.
+     * @param matrix current {@link PMVMatrix}.
+     * @param vp_width current screen width
+     * @param vp_height current screen height
+     * @param width texture width for mp rendering
+     */
+    public final void draw(GL2ES2 gl, RenderState rs, int vp_width, int vp_height, int width) {
+        update(gl, rs);
+        drawImpl(gl, rs, vp_width, vp_height, width);
+    }
+    
+    protected abstract void drawImpl(GL2ES2 gl, RenderState rs, int vp_width, int vp_height, int width);
+}