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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.RegionRenderer;
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 indicesBuffer = null;
private boolean buffersAttached = false;
public VBORegionSPES2(final int renderModes) {
super(renderModes);
final int initialElementCount = 256;
indicesBuffer = GLArrayDataServer.createData(3, GL2ES2.GL_SHORT, initialElementCount, GL.GL_STATIC_DRAW, GL.GL_ELEMENT_ARRAY_BUFFER);
verticeAttr = GLArrayDataServer.createGLSL(AttributeNames.VERTEX_ATTR_NAME, 3, GL2ES2.GL_FLOAT,
false, initialElementCount, GL.GL_STATIC_DRAW);
texCoordAttr = GLArrayDataServer.createGLSL(AttributeNames.TEXCOORD_ATTR_NAME, 2, GL2ES2.GL_FLOAT,
false, initialElementCount, GL.GL_STATIC_DRAW);
}
@Override
protected final void clearImpl(final GL2ES2 gl, final RegionRenderer renderer) {
indicesBuffer.seal(gl, false);
indicesBuffer.rewind();
verticeAttr.seal(gl, false);
verticeAttr.rewind();
texCoordAttr.seal(gl, false);
texCoordAttr.rewind();
}
@Override
protected final void pushVertex(float[] coords, float[] texParams) {
verticeAttr.putf(coords[0]);
verticeAttr.putf(coords[1]);
verticeAttr.putf(coords[2]);
texCoordAttr.putf(texParams[0]);
texCoordAttr.putf(texParams[1]);
}
@Override
protected final void pushIndex(int idx) {
indicesBuffer.puts((short)idx);
}
@Override
protected void update(final GL2ES2 gl, final RegionRenderer renderer) {
if( !buffersAttached ) {
final ShaderState st = renderer.getShaderState();
st.ownAttribute(verticeAttr, true);
st.ownAttribute(texCoordAttr, true);
buffersAttached = true;
}
// seal buffers
indicesBuffer.seal(gl, true);
indicesBuffer.enableBuffer(gl, false);
verticeAttr.seal(gl, true);
verticeAttr.enableBuffer(gl, false);
texCoordAttr.seal(gl, true);
texCoordAttr.enableBuffer(gl, false);
if(DEBUG_INSTANCE) {
System.err.println("VBORegionSPES2 idx "+indicesBuffer);
System.err.println("VBORegionSPES2 ver "+verticeAttr);
System.err.println("VBORegionSPES2 tex "+texCoordAttr);
}
}
@Override
protected void drawImpl(final GL2ES2 gl, final RegionRenderer renderer, final int[/*1*/] texWidth) {
verticeAttr.enableBuffer(gl, true);
texCoordAttr.enableBuffer(gl, true);
indicesBuffer.bindBuffer(gl, true); // keeps VBO binding
gl.glDrawElements(GL2ES2.GL_TRIANGLES, indicesBuffer.getElementCount() * indicesBuffer.getComponentCount(), GL2ES2.GL_UNSIGNED_SHORT, 0);
indicesBuffer.bindBuffer(gl, false);
texCoordAttr.enableBuffer(gl, false);
verticeAttr.enableBuffer(gl, false);
}
@Override
protected void destroyImpl(final GL2ES2 gl, final RegionRenderer renderer) {
if(DEBUG_INSTANCE) {
System.err.println("VBORegionSPES2 Destroy: " + this);
}
final ShaderState st = renderer.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 != indicesBuffer) {
indicesBuffer.destroy(gl);
indicesBuffer = null;
}
}
}
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