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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 javax.media.opengl.GL;
import javax.media.opengl.GL2ES2;
import jogamp.graph.curve.opengl.shader.AttributeNames;
import com.jogamp.graph.curve.opengl.GLRegion;
import com.jogamp.graph.curve.opengl.RenderState;
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 extends GLRegion {
private GLArrayDataServer verticeAttr = null;
private GLArrayDataServer texCoordAttr = null;
private GLArrayDataServer indices = null;
protected VBORegionSPES2(int renderModes) {
super(renderModes);
}
protected void update(GL2ES2 gl, RenderState rs) {
if(!isDirty()) {
return;
}
if(null == indices) {
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(AttributeNames.VERTEX_ATTR_NAME, 3, GL2ES2.GL_FLOAT,
false, initialSize, GL.GL_STATIC_DRAW);
st.ownAttribute(verticeAttr, true);
texCoordAttr = GLArrayDataServer.createGLSL(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);
}
}
// process triangles
indices.seal(gl, false);
indices.rewind();
for(int i=0; i<triangles.size(); i++) {
final Triangle t = triangles.get(i);
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_vertices[0]);
vertices.add(t_vertices[1]);
vertices.add(t_vertices[2]);
indices.puts((short) t_vertices[0].getId());
indices.puts((short) t_vertices[1].getId());
indices.puts((short) t_vertices[2].getId());
} else {
indices.puts((short) t_vertices[0].getId());
indices.puts((short) t_vertices[1].getId());
indices.puts((short) t_vertices[2].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(int i=0; i<vertices.size(); i++) {
final Vertex v = vertices.get(i);
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);
setDirty(false);
}
protected void drawImpl(GL2ES2 gl, RenderState rs, int vp_width, int vp_height, int width) {
verticeAttr.enableBuffer(gl, true);
texCoordAttr.enableBuffer(gl, true);
indices.enableBuffer(gl, true);
gl.glDrawElements(GL2ES2.GL_TRIANGLES, indices.getElementCount() * indices.getComponentCount(), GL2ES2.GL_UNSIGNED_SHORT, 0);
verticeAttr.enableBuffer(gl, false);
texCoordAttr.enableBuffer(gl, false);
indices.enableBuffer(gl, false);
}
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;
}
}
}
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