diff options
Diffstat (limited to 'src/jogl/classes/com/jogamp/graph/curve/OutlineShape.java')
| -rw-r--r-- | src/jogl/classes/com/jogamp/graph/curve/OutlineShape.java | 125 |
1 files changed, 103 insertions, 22 deletions
diff --git a/src/jogl/classes/com/jogamp/graph/curve/OutlineShape.java b/src/jogl/classes/com/jogamp/graph/curve/OutlineShape.java index c8d5a9db6..ee1dae4ca 100644 --- a/src/jogl/classes/com/jogamp/graph/curve/OutlineShape.java +++ b/src/jogl/classes/com/jogamp/graph/curve/OutlineShape.java @@ -107,15 +107,27 @@ public class OutlineShape implements Comparable<OutlineShape> { } public static final int DIRTY_BOUNDS = 1 << 0; + /** + * Modified shape, requires to update the vertices and triangles, here: vertices. + */ + public static final int DIRTY_VERTICES = 1 << 1; + /** + * Modified shape, requires to update the vertices and triangles, here: triangulation. + */ + public static final int DIRTY_TRIANGLES = 1 << 2; private final Vertex.Factory<? extends Vertex> vertexFactory; - private VerticesState outlineState; /** The list of {@link Outline}s that are part of this * outline shape. */ - /* pp */ ArrayList<Outline> outlines; + /* pp */ final ArrayList<Outline> outlines; + private final AABBox bbox; + private final ArrayList<Triangle> triangles; + private final ArrayList<Vertex> vertices; + + private VerticesState outlineState; /** dirty bits DIRTY_BOUNDS */ private int dirtyBits; @@ -128,6 +140,8 @@ public class OutlineShape implements Comparable<OutlineShape> { this.outlines.add(new Outline()); this.outlineState = VerticesState.UNDEFINED; this.bbox = new AABBox(); + this.triangles = new ArrayList<Triangle>(); + this.vertices = new ArrayList<Vertex>(); this.dirtyBits = 0; } @@ -137,6 +151,8 @@ public class OutlineShape implements Comparable<OutlineShape> { outlines.add(new Outline()); outlineState = VerticesState.UNDEFINED; bbox.reset(); + vertices.clear(); + triangles.clear(); dirtyBits = 0; } @@ -200,6 +216,8 @@ public class OutlineShape implements Comparable<OutlineShape> { if( 0 == ( dirtyBits & DIRTY_BOUNDS ) ) { bbox.resize(outline.getBounds()); } + // vertices.addAll(outline.getVertices()); // FIXME: can do and remove DIRTY_VERTICES ? + dirtyBits |= DIRTY_TRIANGLES | DIRTY_VERTICES; return; } } @@ -207,6 +225,7 @@ public class OutlineShape implements Comparable<OutlineShape> { if( 0 == ( dirtyBits & DIRTY_BOUNDS ) ) { bbox.resize(outline.getBounds()); } + dirtyBits |= DIRTY_TRIANGLES | DIRTY_VERTICES; } /** Insert the {@link OutlineShape} elements of type {@link Outline}, .. at the end of this shape, @@ -239,7 +258,7 @@ public class OutlineShape implements Comparable<OutlineShape> { throw new NullPointerException("outline is null"); } outlines.set(position, outline); - dirtyBits |= DIRTY_BOUNDS; + dirtyBits |= DIRTY_BOUNDS | DIRTY_TRIANGLES | DIRTY_VERTICES; } /** Removes the {@link Outline} element at the given {@code position}. @@ -249,7 +268,7 @@ public class OutlineShape implements Comparable<OutlineShape> { * @throws IndexOutOfBoundsException if position is out of range (position < 0 || position >= getOutlineNumber()) */ public final Outline removeOutline(int position) throws IndexOutOfBoundsException { - dirtyBits |= DIRTY_BOUNDS; + dirtyBits |= DIRTY_BOUNDS | DIRTY_TRIANGLES | DIRTY_VERTICES; return outlines.remove(position); } @@ -278,6 +297,8 @@ public class OutlineShape implements Comparable<OutlineShape> { if( 0 == ( dirtyBits & DIRTY_BOUNDS ) ) { bbox.resize(lo.getBounds()); } + // vertices.add(v); // FIXME: can do and remove DIRTY_VERTICES ? + dirtyBits |= DIRTY_TRIANGLES | DIRTY_VERTICES; } /** Adds a vertex to the last open outline in the shape. @@ -291,6 +312,7 @@ public class OutlineShape implements Comparable<OutlineShape> { if( 0 == ( dirtyBits & DIRTY_BOUNDS ) ) { bbox.resize(lo.getBounds()); } + dirtyBits |= DIRTY_TRIANGLES | DIRTY_VERTICES; } /** Add a 2D {@link Vertex} to the last outline by defining the coordniate attribute @@ -338,7 +360,9 @@ public class OutlineShape implements Comparable<OutlineShape> { * is equal to the first.</p> */ public void closeLastOutline() { - getLastOutline().setClosed(true); + if( getLastOutline().setClosed(true) ) { + dirtyBits |= DIRTY_TRIANGLES | DIRTY_VERTICES; + } } /** @@ -348,7 +372,8 @@ public class OutlineShape implements Comparable<OutlineShape> { return outlineState; } - /** Ensure the outlines represent + /** + * Ensure the outlines represent * the specified destinationType. * and removes all overlaps in boundary triangles * @param destinationType the target outline's vertices state. Currently only @@ -376,6 +401,7 @@ public class OutlineShape implements Comparable<OutlineShape> { outline.addVertex(index, vertexFactory.create(v1, 0, 3, false)); outline.addVertex(index+2, vertexFactory.create(v3, 0, 3, false)); + dirtyBits |= DIRTY_VERTICES; } /** Check overlaps between curved triangles @@ -480,10 +506,12 @@ public class OutlineShape implements Comparable<OutlineShape> { i++; vertexCount++; outline.addVertex(i, v); + dirtyBits |= DIRTY_VERTICES; } } if(vertexCount <= 0) { outlines.remove(outline); + dirtyBits |= DIRTY_VERTICES; cc--; count--; continue; @@ -511,37 +539,90 @@ public class OutlineShape implements Comparable<OutlineShape> { } } - /** @return the list of concatenated vertices associated with all - * {@code Outline}s of this object + /** + * Return list of concatenated vertices associated with all + * {@code Outline}s of this object. + * <p> + * Vertices are cached until marked dirty. + * </p> + * FIXME: Add memory optimization, i.e. VBO layout */ public ArrayList<Vertex> getVertices() { - ArrayList<Vertex> vertices = new ArrayList<Vertex>(); - for(int i=0; i<outlines.size(); i++) { - vertices.addAll(outlines.get(i).getVertices()); + if( 0 != ( DIRTY_VERTICES & dirtyBits ) ) { + vertices.clear(); + for(int i=0; i<outlines.size(); i++) { + vertices.addAll(outlines.get(i).getVertices()); + } + dirtyBits &= ~DIRTY_VERTICES; } return vertices; } + private void triangulateImpl() { + if( 0 < outlines.size() ) { + sortOutlines(); + generateVertexIds(); + + triangles.clear(); + final Triangulator triangulator2d = Triangulation.create(); + for(int index = 0; index<outlines.size(); index++) { + triangulator2d.addCurve(triangles, outlines.get(index)); + } + triangulator2d.generate(triangles); + triangulator2d.reset(); + } + dirtyBits &= ~DIRTY_TRIANGLES; + } + /** * Triangulate the {@link OutlineShape} generating a list of triangles + * while {@link #transformOutlines(VerticesState)} beforehand w/ + * {@link OutlineShape.VerticesState#QUADRATIC_NURBS}. + * <p> + * Triangles are cached until marked dirty. + * </p> * @return an arraylist of triangles representing the filled region * which is produced by the combination of the outlines + * FIXME: Add memory optimization, i.e. VBO layout */ - public ArrayList<Triangle> triangulate() { - if(outlines.size() == 0){ - return null; + public ArrayList<Triangle> getTriangles() { + final boolean updated; + if( 0 != ( DIRTY_TRIANGLES & dirtyBits ) ) { + transformOutlines(OutlineShape.VerticesState.QUADRATIC_NURBS); + triangulateImpl(); + updated = true; + } else { + updated = false; } - sortOutlines(); - generateVertexIds(); - - Triangulator triangulator2d = Triangulation.create(); - for(int index = 0; index<outlines.size(); index++) { - triangulator2d.addCurve(outlines.get(index)); + if(Region.DEBUG_INSTANCE) { + System.err.println("OutlineShape.getTriangles().1: "+triangles.size()+", updated "+updated); } - ArrayList<Triangle> triangles = triangulator2d.generate(); - triangulator2d.reset(); + return triangles; + } + /** + * Triangulate the {@link OutlineShape} generating a list of triangles, + * while {@link #transformOutlines(VerticesState)} beforehand. + * <p> + * Triangles are cached until marked dirty. + * </p> + * @return an arraylist of triangles representing the filled region + * which is produced by the combination of the outlines + * FIXME: Add memory optimization, i.e. VBO layout + */ + public ArrayList<Triangle> getTriangles(VerticesState destinationType) { + final boolean updated; + if( 0 != ( DIRTY_TRIANGLES & dirtyBits ) ) { + transformOutlines(destinationType); + triangulateImpl(); + updated = true; + } else { + updated = false; + } + if(Region.DEBUG_INSTANCE) { + System.err.println("OutlineShape.getTriangles().2: "+triangles.size()+", updated "+updated); + } return triangles; } |