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Java™ Binding for the OpenGL® API
/**
* 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;
import java.util.ArrayList;
import java.util.List;
import jogamp.graph.geom.plane.AffineTransform;
import jogamp.opengl.Debug;
import com.jogamp.graph.geom.Triangle;
import com.jogamp.graph.geom.Vertex;
import com.jogamp.opengl.math.geom.AABBox;
import com.jogamp.opengl.math.geom.Frustum;
import com.jogamp.opengl.util.texture.TextureSequence;
/**
* Abstract Outline shape representation define the method an OutlineShape(s)
* is bound and rendered.
*
* @see com.jogamp.graph.curve.opengl.GLRegion
*/
public abstract class Region {
/** Debug flag for region impl (graph.curve) */
public static final boolean DEBUG = Debug.debug("graph.curve");
public static final boolean DEBUG_INSTANCE = Debug.debug("graph.curve.Instance");
/**
* Rendering-Mode bit for {@link #getRenderModes() Region}
*
* MSAA based Anti-Aliasing, a two pass region rendering, slower and more
* resource hungry (FBO), but providing fast MSAA in case
* the whole scene is not rendered with MSAA.
*
*/
public static final int MSAA_RENDERING_BIT = 1 << 0;
/**
* Rendering-Mode bit for {@link #getRenderModes() Region}
*
* View based Anti-Aliasing, a two pass region rendering, slower and more
* resource hungry (FBO), but AA is perfect. Otherwise the default fast one
* pass MSAA region rendering is being used.
*
*/
public static final int VBAA_RENDERING_BIT = 1 << 1;
/**
* Rendering-Mode bit for {@link #getRenderModes() Region}
*
* Use non uniform weights [0.0 .. 1.9] for curve region rendering.
* Otherwise the default weight 1.0 for uniform curve region rendering is
* being applied.
*
*/
public static final int VARWEIGHT_RENDERING_BIT = 1 << 8;
/**
* Rendering-Mode bit for {@link #getRenderModes() Region}
*
* If set, a color channel attribute per vertex is added to the stream,
* otherwise only the
* {@link com.jogamp.graph.curve.opengl.RegionRenderer#setColorStatic(javax.media.opengl.GL2ES2, float, float, float, float) static color}
* is being used.
*
*/
public static final int COLORCHANNEL_RENDERING_BIT = 1 << 9;
/**
* Rendering-Mode bit for {@link #getRenderModes() Region}
*
* If set, a color texture is used to determine the color.
*
*/
public static final int COLORTEXTURE_RENDERING_BIT = 1 << 10;
/** Default maximum {@link #getQuality() quality}, {@value}. */
public static final int MAX_QUALITY = 1;
public static final int DEFAULT_TWO_PASS_TEXTURE_UNIT = 0;
protected static final int DIRTY_SHAPE = 1 << 0 ;
protected static final int DIRTY_STATE = 1 << 1 ;
private final int renderModes;
private int quality;
private int dirty = DIRTY_SHAPE | DIRTY_STATE;
private int numVertices = 0;
protected final AABBox box = new AABBox();
protected Frustum frustum = null;
public static boolean isVBAA(final int renderModes) {
return 0 != (renderModes & Region.VBAA_RENDERING_BIT);
}
public static boolean isMSAA(final int renderModes) {
return 0 != (renderModes & Region.MSAA_RENDERING_BIT);
}
public static boolean isTwoPass(final int renderModes) {
return 0 != ( renderModes & ( Region.VBAA_RENDERING_BIT | Region.MSAA_RENDERING_BIT) );
}
/**
* Returns true if render mode capable of variable weights,
* i.e. the bit {@link #VARWEIGHT_RENDERING_BIT} is set,
* otherwise false.
*/
public static boolean hasVariableWeight(final int renderModes) {
return 0 != (renderModes & Region.VARWEIGHT_RENDERING_BIT);
}
/**
* Returns true if render mode has a color channel,
* i.e. the bit {@link #COLORCHANNEL_RENDERING_BIT} is set,
* otherwise false.
*/
public static boolean hasColorChannel(final int renderModes) {
return 0 != (renderModes & Region.COLORCHANNEL_RENDERING_BIT);
}
/**
* Returns true if render mode has a color texture,
* i.e. the bit {@link #COLORTEXTURE_RENDERING_BIT} is set,
* otherwise false.
*/
public static boolean hasColorTexture(final int renderModes) {
return 0 != (renderModes & Region.COLORTEXTURE_RENDERING_BIT);
}
public static String getRenderModeString(final int renderModes) {
final String curveS = hasVariableWeight(renderModes) ? "-curve" : "";
final String cChanS = hasColorChannel(renderModes) ? "-cols" : "";
final String cTexS = hasColorTexture(renderModes) ? "-ctex" : "";
if( Region.isVBAA(renderModes) ) {
return "vbaa"+curveS+cChanS+cTexS;
} else if( Region.isMSAA(renderModes) ) {
return "msaa"+curveS+cChanS+cTexS;
} else {
return "norm"+curveS+cChanS+cTexS;
}
}
protected Region(final int regionRenderModes) {
this.renderModes = regionRenderModes;
this.quality = MAX_QUALITY;
}
// FIXME: Better handling of impl. buffer growth .. !
// protected abstract void setupInitialComponentCount(int attributeCount, int indexCount);
protected abstract void pushVertex(final float[] coords, final float[] texParams, float[] rgba);
protected abstract void pushIndex(int idx);
/**
* Return bit-field of render modes, see {@link com.jogamp.graph.curve.opengl.GLRegion#create(int, TextureSequence)}.
*/
public final int getRenderModes() { return renderModes; }
/** See {@link #MAX_QUALITY} */
public final int getQuality() { return quality; }
/** See {@link #MAX_QUALITY} */
public final void setQuality(final int q) { quality=q; }
protected void clearImpl() {
dirty = DIRTY_SHAPE | DIRTY_STATE;
numVertices = 0;
box.reset();
}
/**
* Returns true if capable of two pass rendering - VBAA, otherwise false.
*/
public final boolean isVBAA() {
return Region.isVBAA(renderModes);
}
/**
* Returns true if capable of two pass rendering - MSAA, otherwise false.
*/
public final boolean isMSAA() {
return Region.isMSAA(renderModes);
}
/**
* Returns true if capable of variable weights, otherwise false.
*/
public final boolean hasVariableWeight() {
return Region.hasVariableWeight(renderModes);
}
/**
* Returns true if render mode has a color channel,
* i.e. the bit {@link #COLORCHANNEL_RENDERING_BIT} is set,
* otherwise false.
*/
public boolean hasColorChannel() {
return Region.hasColorChannel(renderModes);
}
/**
* Returns true if render mode has a color texture,
* i.e. the bit {@link #COLORTEXTURE_RENDERING_BIT} is set,
* otherwise false.
*/
public boolean hasColorTexture() {
return Region.hasColorTexture(renderModes);
}
/** See {@link #setFrustum(Frustum)} */
public final Frustum getFrustum() { return frustum; }
/**
* Set {@link Frustum} culling for {@link #addOutlineShape(OutlineShape, AffineTransform, float[])}.
*/
public final void setFrustum(final Frustum frustum) {
this.frustum = frustum;
}
final float[] coordsEx = new float[3];
private void pushNewVertexImpl(final Vertex vertIn, final AffineTransform transform, final float[] rgba) {
if( null != transform ) {
final float[] coordsIn = vertIn.getCoord();
transform.transform(coordsIn, coordsEx);
coordsEx[2] = coordsIn[2];
box.resize(coordsEx[0], coordsEx[1], coordsEx[2]);
pushVertex(coordsEx, vertIn.getTexCoord(), rgba);
} else {
box.resize(vertIn.getX(), vertIn.getY(), vertIn.getZ());
pushVertex(vertIn.getCoord(), vertIn.getTexCoord(), rgba);
}
numVertices++;
}
private void pushNewVertexIdxImpl(final Vertex vertIn, final AffineTransform transform, final float[] rgba) {
pushIndex(numVertices);
pushNewVertexImpl(vertIn, transform, rgba);
}
private final AABBox tmpBox = new AABBox();
/**
* Add the given {@link OutlineShape} to this region with the given optional {@link AffineTransform}.
*
* In case {@link #setFrustum(Frustum) frustum culling is set}, the {@link OutlineShape}
* is dropped if it's {@link OutlineShape#getBounds() bounding-box} is fully outside of the frustum.
* The optional {@link AffineTransform} is applied to the bounding-box beforehand.
*
* @param rgbaColor TODO
*/
public final void addOutlineShape(final OutlineShape shape, final AffineTransform t, final float[] rgbaColor) {
if( null != frustum ) {
final AABBox shapeBox = shape.getBounds();
final AABBox shapeBoxT;
if( null != t ) {
t.transform(shapeBox, tmpBox);
shapeBoxT = tmpBox;
} else {
shapeBoxT = shapeBox;
}
if( frustum.isAABBoxOutside(shapeBoxT) ) {
if(DEBUG_INSTANCE) {
System.err.println("Region.addOutlineShape(): Dropping outside shapeBoxT: "+shapeBoxT);
}
return;
}
}
final List trisIn = shape.getTriangles(OutlineShape.VerticesState.QUADRATIC_NURBS);
final ArrayList vertsIn = shape.getVertices();
if(DEBUG_INSTANCE) {
final int addedVerticeCount = shape.getAddedVerticeCount();
final int verticeCount = vertsIn.size() + addedVerticeCount;
final int indexCount = trisIn.size() * 3;
System.err.println("Region.addOutlineShape().0: tris: "+trisIn.size()+", verts "+vertsIn.size()+", transform "+t);
System.err.println("Region.addOutlineShape().0: VerticeCount "+vertsIn.size()+" + "+addedVerticeCount+" = "+verticeCount);
System.err.println("Region.addOutlineShape().0: IndexCount "+indexCount);
}
// setupInitialComponentCount(verticeCount, indexCount); // FIXME: Use it ?
final int idxOffset = numVertices;
int vertsVNewIdxCount = 0, vertsTMovIdxCount = 0, vertsTNewIdxCount = 0, tris = 0;
final int vertsDupCountV = 0, vertsDupCountT = 0, vertsKnownMovedT = 0;
if( vertsIn.size() >= 3 ) {
if(DEBUG_INSTANCE) {
System.err.println("Region.addOutlineShape(): Processing Vertices");
}
for(int i=0; i tv0Idx ) { // Integer.MAX_VALUE != i0 // FIXME: renderer uses SHORT!
// valid 'known' idx - move by offset
if(Region.DEBUG_INSTANCE) {
System.err.println("T["+i+"]: Moved "+tv0Idx+" + "+idxOffset+" -> "+(tv0Idx+idxOffset));
}
pushIndex(tv0Idx+idxOffset);
pushIndex(triInVertices[1].getId()+idxOffset);
pushIndex(triInVertices[2].getId()+idxOffset);
vertsTMovIdxCount+=3;
} else {
// invalid idx - generate new one
if(Region.DEBUG_INSTANCE) {
System.err.println("T["+i+"]: New Idx "+numVertices);
}
pushNewVertexIdxImpl(triInVertices[0], t, rgbaColor);
pushNewVertexIdxImpl(triInVertices[1], t, rgbaColor);
pushNewVertexIdxImpl(triInVertices[2], t, rgbaColor);
vertsTNewIdxCount+=3;
}
tris++;
}
}
if(DEBUG_INSTANCE) {
System.err.println("Region.addOutlineShape().X: idxOffset "+idxOffset+", tris: "+tris+", verts [idx "+vertsTNewIdxCount+", add "+vertsTNewIdxCount+" = "+(vertsVNewIdxCount+vertsTNewIdxCount)+"]");
System.err.println("Region.addOutlineShape().X: verts: idx[v-new "+vertsVNewIdxCount+", t-new "+vertsTNewIdxCount+" = "+(vertsVNewIdxCount+vertsTNewIdxCount)+"]");
System.err.println("Region.addOutlineShape().X: verts: idx t-moved "+vertsTMovIdxCount+", numVertices "+numVertices);
System.err.println("Region.addOutlineShape().X: verts: v-dups "+vertsDupCountV+", t-dups "+vertsDupCountT+", t-known "+vertsKnownMovedT);
// int vertsDupCountV = 0, vertsDupCountT = 0;
System.err.println("Region.addOutlineShape().X: box "+box);
}
markShapeDirty();
}
public final void addOutlineShapes(final List shapes, final AffineTransform transform, final float[] rgbaColor) {
for (int i = 0; i < shapes.size(); i++) {
addOutlineShape(shapes.get(i), transform, rgbaColor);
}
}
/** @return the AxisAligned bounding box of current region */
public final AABBox getBounds() {
return box;
}
/**
* Mark this region's shape dirty, i.e. it's
* Vertices, Triangles, and or Lines changed.
*/
public final void markShapeDirty() {
dirty |= DIRTY_SHAPE;
}
/** Returns true if this region's shape are dirty, see {@link #markShapeDirty()}. */
public final boolean isShapeDirty() {
return 0 != ( dirty & DIRTY_SHAPE ) ;
}
/**
* Mark this region's state dirty, i.e.
* it's render attributes or parameters changed.
*/
public final void markStateDirty() {
dirty |= DIRTY_STATE;
}
/** Returns true if this region's state is dirty, see {@link #markStateDirty()}. */
public final boolean isStateDirty() {
return 0 != ( dirty & DIRTY_STATE ) ;
}
/**
* See {@link #markShapeDirty()} and {@link #markStateDirty()}.
*/
protected final void clearDirtyBits(final int v) {
dirty &= ~v;
}
protected final int getDirtyBits() { return dirty; }
public String toString() {
return "Region["+getRenderModeString(this.renderModes)+", q "+quality+", dirty "+dirty+", vertices "+numVertices+", box "+box+"]";
}
}