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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 javax.media.opengl.GL2ES2;
import javax.media.opengl.GLException;
import com.jogamp.graph.curve.OutlineShape;
import com.jogamp.graph.curve.Region;
public abstract class RegionRenderer extends Renderer {
/**
* Create a Hardware accelerated Region Renderer.
* @param rs the used {@link RenderState}
* @param renderModes bit-field of modes, e.g. {@link Region#VARIABLE_CURVE_WEIGHT_BIT}, {@link Region#VBAA_RENDERING_BIT}
* @return an instance of Region Renderer
*/
public static RegionRenderer create(RenderState rs, int renderModes) {
return new jogamp.graph.curve.opengl.RegionRendererImpl01(rs, renderModes);
}
protected RegionRenderer(RenderState rs, int renderModes) {
super(rs, renderModes);
}
/** Render an {@link OutlineShape} in 3D space at the position provided
* the triangles of the shapes will be generated, if not yet generated
* @param region the OutlineShape to Render.
* @param position the initial translation of the outlineShape.
* @param texWidth desired texture width for multipass-rendering.
* The actual used texture-width is written back when mp rendering is enabled, otherwise the store is untouched.
* @throws Exception if HwRegionRenderer not initialized
*/
public final void draw(GL2ES2 gl, Region region, float[] position, int[/*1*/] texWidth) {
if(!isInitialized()) {
throw new GLException("RegionRenderer: not initialized!");
}
if( !areRenderModesCompatible(region) ) {
throw new GLException("Incompatible render modes, : region modes "+region.getRenderModes()+
" doesn't contain renderer modes "+this.getRenderModes());
}
drawImpl(gl, region, position, texWidth);
}
/**
* Usually just dispatched the draw call to the Region's draw implementation,
* e.g. {@link com.jogamp.graph.curve.opengl.GLRegion#draw(GL2ES2, RenderState, int, int, int[]) GLRegion#draw(GL2ES2, RenderState, int, int, int[])}.
*/
protected abstract void drawImpl(GL2ES2 gl, Region region, float[] position, int[] texWidth);
@Override
protected void destroyImpl(GL2ES2 gl) {
// nop
}
}
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