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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 jogamp.graph.curve.opengl;
import java.util.ArrayList;
import javax.media.opengl.GL;
import javax.media.opengl.GL2ES2;
import jogamp.graph.curve.opengl.shader.AttributeNames;
import com.jogamp.graph.curve.Region;
import com.jogamp.graph.curve.opengl.RenderState;
import com.jogamp.graph.geom.AABBox;
import com.jogamp.graph.geom.Vertex;
import com.jogamp.graph.geom.Triangle;
import com.jogamp.opengl.util.GLArrayDataServer;
import com.jogamp.opengl.util.glsl.ShaderState;
public class VBORegionSPES2 implements Region {
private int numVertices = 0;
private ArrayList<Triangle> triangles = new ArrayList<Triangle>();
private ArrayList<Vertex> vertices = new ArrayList<Vertex>();
private GLArrayDataServer verticeAttr = null;
private GLArrayDataServer texCoordAttr = null;
private GLArrayDataServer indices = null;
private boolean flipped = false;
private boolean dirty = true;
private AABBox box = null;
public VBORegionSPES2(RenderState rs){
box = new AABBox();
final int initialSize = 256;
final ShaderState st = rs.getShaderState();
indices = GLArrayDataServer.createData(3, GL2ES2.GL_SHORT, initialSize, GL.GL_STATIC_DRAW, GL.GL_ELEMENT_ARRAY_BUFFER);
verticeAttr = GLArrayDataServer.createGLSL(st, AttributeNames.VERTEX_ATTR_NAME, 3,
GL2ES2.GL_FLOAT, false, initialSize, GL.GL_STATIC_DRAW);
st.ownAttribute(verticeAttr, true);
texCoordAttr = GLArrayDataServer.createGLSL(st, AttributeNames.TEXCOORD_ATTR_NAME, 2,
GL2ES2.GL_FLOAT, false, initialSize, GL.GL_STATIC_DRAW);
st.ownAttribute(texCoordAttr, true);
if(DEBUG_INSTANCE) {
System.err.println("VBORegionSPES2 Create: " + this);
}
}
public void update(GL2ES2 gl){
if(!dirty) {
return;
}
// process triangles
indices.seal(gl, false);
indices.rewind();
for(Triangle t:triangles){
final Vertex[] t_vertices = t.getVertices();
if(t_vertices[0].getId() == Integer.MAX_VALUE){
t_vertices[0].setId(numVertices++);
t_vertices[1].setId(numVertices++);
t_vertices[2].setId(numVertices++);
vertices.add(t.getVertices()[0]);
vertices.add(t.getVertices()[1]);
vertices.add(t.getVertices()[2]);
indices.puts((short) t.getVertices()[0].getId());
indices.puts((short) t.getVertices()[1].getId());
indices.puts((short) t.getVertices()[2].getId());
}
else{
Vertex v1 = t_vertices[0];
Vertex v2 = t_vertices[1];
Vertex v3 = t_vertices[2];
indices.puts((short) v1.getId());
indices.puts((short) v2.getId());
indices.puts((short) v3.getId());
}
}
indices.seal(gl, true);
indices.enableBuffer(gl, false);
// process vertices and update bbox
box.reset();
verticeAttr.seal(gl, false);
verticeAttr.rewind();
texCoordAttr.seal(gl, false);
texCoordAttr.rewind();
for(Vertex v:vertices){
if(flipped){
verticeAttr.putf(v.getX());
verticeAttr.putf(-1*v.getY());
verticeAttr.putf(v.getZ());
box.resize(v.getX(),-1*v.getY(),v.getZ());
}
else{
verticeAttr.putf(v.getX());
verticeAttr.putf(v.getY());
verticeAttr.putf(v.getZ());
box.resize(v.getX(),v.getY(),v.getZ());
}
final float[] tex = v.getTexCoord();
texCoordAttr.putf(tex[0]);
texCoordAttr.putf(tex[1]);
}
verticeAttr.seal(gl, true);
verticeAttr.enableBuffer(gl, false);
texCoordAttr.seal(gl, true);
texCoordAttr.enableBuffer(gl, false);
// update all bbox related data: nope
dirty = false;
// the buffers were disabled, since due to real/fbo switching and other vbo usage
}
private void render(GL2ES2 gl) {
verticeAttr.enableBuffer(gl, true);
texCoordAttr.enableBuffer(gl, true);
indices.enableBuffer(gl, true);
gl.glDrawElements(GL2ES2.GL_TRIANGLES, indices.getElementNumber() * indices.getComponentNumber(), GL2ES2.GL_UNSIGNED_SHORT, 0);
verticeAttr.enableBuffer(gl, false);
texCoordAttr.enableBuffer(gl, false);
indices.enableBuffer(gl, false);
}
public void render(GL2ES2 gl, RenderState rs, int vp_width, int vp_height, int width) {
render(gl);
}
public void addTriangles(ArrayList<Triangle> tris) {
triangles.addAll(tris);
dirty = true;
}
public int getNumVertices(){
return numVertices;
}
public void addVertices(ArrayList<Vertex> verts){
vertices.addAll(verts);
numVertices = vertices.size();
dirty = true;
}
public boolean isDirty(){
return dirty;
}
public final void destroy(GL2ES2 gl, RenderState rs) {
if(DEBUG_INSTANCE) {
System.err.println("VBORegionSPES2 Destroy: " + this);
}
final ShaderState st = rs.getShaderState();
if(null != verticeAttr) {
st.ownAttribute(verticeAttr, false);
verticeAttr.destroy(gl);
verticeAttr = null;
}
if(null != texCoordAttr) {
st.ownAttribute(texCoordAttr, false);
texCoordAttr.destroy(gl);
texCoordAttr = null;
}
if(null != indices) {
indices.destroy(gl);
indices = null;
}
}
public boolean isFlipped() {
return flipped;
}
public void setFlipped(boolean flipped) {
this.flipped = flipped;
}
public AABBox getBounds(){
return box;
}
}
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