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/*
 * Copyright 1997-2008 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 *
 */

package javax.media.j3d;

import java.nio.FloatBuffer;
import java.util.ArrayList;

import javax.vecmath.TexCoord2f;
import javax.vecmath.TexCoord3f;


/**
 * The GeometryStripArray object is an abstract class that is extended for
 * a set of GeometryArray strip primitives.  These include LINE_STRIP,
 * TRIANGLE_STRIP, and TRIANGLE_FAN.
 */

abstract class GeometryStripArrayRetained extends GeometryArrayRetained {

    // Array of per-strip vertex counts
    int stripVertexCounts[];

    // Array of per-strip starting index
    int stripStartVertexIndices[];  // start of vertices for both by-copy
                                    // and by-ref
    int stripStartOffsetIndices[]; // Used in byRef non_interleaved

    // Following variables are only used in the compile mode
    // isCompiled = true
    int[] compileNumStrips;
    int[] compileStripCountOffset;


    /**
     * Set stripVertexCount data into local array
     */
    void setStripVertexCounts(int stripVertexCounts[]) {
	boolean nullGeo = false;

	int i, num = stripVertexCounts.length, total = 0;
	for (i=0; i < num; i++) {
	    total += stripVertexCounts[i];
	    if (this instanceof LineStripArrayRetained) {
		if (stripVertexCounts[i] < 2) {
		    throw new IllegalArgumentException(J3dI18N.getString("LineStripArrayRetained1"));
		}
	    }
	    else if (this instanceof TriangleStripArrayRetained) {
		if (stripVertexCounts[i] < 3) {
		    throw new IllegalArgumentException(J3dI18N.getString("TriangleStripArrayRetained1"));
		}
	    }
	    else if (this instanceof TriangleFanArrayRetained) {
		if (stripVertexCounts[i] < 3) {
		    throw new IllegalArgumentException(J3dI18N.getString("TriangleFanArrayRetained1"));
		}
	    }
	}

	if ((initialVertexIndex + total) > vertexCount) {
	    throw new IllegalArgumentException(J3dI18N.getString("GeometryStripArray3"));
	}
	if ((initialCoordIndex + total) > vertexCount) {
	    throw new IllegalArgumentException(J3dI18N.getString("GeometryStripArray7"));
	}
	if ((initialColorIndex + total) > vertexCount) {
	    throw new IllegalArgumentException(J3dI18N.getString("GeometryStripArray4"));
	}
	if ((initialNormalIndex + total) > vertexCount) {
	    throw new IllegalArgumentException(J3dI18N.getString("GeometryStripArray5"));
	}
        if ((vertexFormat & GeometryArray.TEXTURE_COORDINATE) != 0) {
            if ((vertexFormat & (GeometryArray.BY_REFERENCE|vertexFormat &GeometryArray.INTERLEAVED)) == GeometryArray.BY_REFERENCE) {
                for (i = 0; i < texCoordSetCount; i++) {
                    if ((initialTexCoordIndex[i] + total) > vertexCount) {
                        throw new IllegalArgumentException(
                                J3dI18N.getString("GeometryStripArray6"));
                    }
                }
            }
        }
        if ((vertexFormat & GeometryArray.VERTEX_ATTRIBUTES) != 0) {
            if ((vertexFormat & (GeometryArray.BY_REFERENCE|vertexFormat &GeometryArray.INTERLEAVED)) == GeometryArray.BY_REFERENCE) {
                for (i = 0; i < vertexAttrCount; i++) {
                    if ((initialVertexAttrIndex[i] + total) > vertexCount) {
                        throw new IllegalArgumentException(
                                J3dI18N.getString("GeometryStripArray8"));
                    }
                }
            }
        }
        boolean isLive = source!=null && source.isLive();
        if(isLive){
            geomLock.getLock();
        }
	dirtyFlag |= STRIPCOUNT_CHANGED;
	validVertexCount = total;
	this.stripVertexCounts = new int[num];
	stripStartVertexIndices = new int[num];
	stripStartOffsetIndices = new int[num];
	stripStartOffsetIndices[0] = 0;
	if ((vertexFormat & (GeometryArray.BY_REFERENCE|vertexFormat &GeometryArray.INTERLEAVED)) == GeometryArray.BY_REFERENCE) {
	    stripStartVertexIndices[0] = initialCoordIndex;
	    nullGeo = ((vertexType & GeometryArrayRetained.VERTEX_DEFINED) == 0);
	}
	else {
	    stripStartVertexIndices[0] = initialVertexIndex;
	    if ((vertexFormat & GeometryArray.INTERLEAVED) != 0) {
		if (( vertexFormat & GeometryArray.USE_NIO_BUFFER) != 0) {
		    nullGeo = (interLeavedVertexData == null);
		}
		else {
		    nullGeo = (interleavedFloatBufferImpl == null);
		}
	    }
	}

	for (i=0; i