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/*

 * PROJECT: NyARToolkit

 * --------------------------------------------------------------------------------

 * This work is based on the original ARToolKit developed by

 *   Hirokazu Kato

 *   Mark Billinghurst

 *   HITLab, University of Washington, Seattle

 * http://www.hitl.washington.edu/artoolkit/

 *

 * The NyARToolkit is Java version ARToolkit class library.

 * Copyright (C)2008 R.Iizuka

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program 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 for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this framework; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 *

 * For further information please contact.

 *      http://nyatla.jp/nyatoolkit/

 *      <airmail(at)ebony.plala.or.jp>

 *

 */

package jp.nyatla.nyartoolkit.core;

import jp.nyatla.nyartoolkit.NyARException;

import jp.nyatla.nyartoolkit.core.raster.NyARRaster;

/**

 * 24ビットカラーのマーカーを保持するために使うクラスです。

 * このクラスは、ARToolkitのパターンと、ラスタから取得したパターンを保持します。

 * 演算順序以外の最適化をしたもの

 *

 */

public class NyARColorPatt_O1 implements NyARColorPatt

{

    private static final int AR_PATT_SAMPLE_NUM=64;//#define   AR_PATT_SAMPLE_NUM   64

    private int extpat[][][];

    private int width;

    private int height;

    public NyARColorPatt_O1(int i_width,int i_height)

    {

        this.width =i_width;

        this.height=i_height;

        this.extpat=new int[i_height][i_width][3];

        this.wk_pickFromRaster_ext_pat2=new int[i_height][i_width][3];

    }

//    public void setSize(int i_new_width,int i_new_height)

//    {

//      int array_w=this.extpat[0].length;

//      int array_h=this.extpat.length;

//      //十分なサイズのバッファがあるか確認

//      if(array_w>=i_new_width && array_h>=i_new_height){

//          //OK 十分だ→サイズ調整のみ

//      }else{

//          //足りないよ→取り直し

//          this.wk_pickFromRaster_ext_pat2=new int[i_new_height][i_new_width][3];

//          this.extpat=new int[i_new_height][i_new_width][3];

//      }

//        this.width =i_new_width;

//        this.height=i_new_height;

//        return;        

//    }

    public int[][][] getPatArray()

    {

        return extpat;

    }

    public int getWidth()

    {

        return width;

    }

    public int getHeight()

    {

        return height;

    }

    private final NyARMat wk_get_cpara_a=new NyARMat(8,8);

    private final NyARMat wk_get_cpara_b=new NyARMat(8,1);

    private final NyARMat wk_get_cpara_c=new NyARMat(8,1);

    /**

     *

     * @param world

     * @param vertex

     * @param para

     * [3x3]

     * @throws NyARException

     */

    private boolean get_cpara( double world[][], double vertex[][],double[] para) throws NyARException

    {

        NyARMat a =wk_get_cpara_a;//次処理で値を設定するので、初期化不要// new NyARMat( 8, 8 );

        double[][] a_array=a.getArray();

        NyARMat b =wk_get_cpara_b;//次処理で値を設定するので、初期化不要// new NyARMat( 8, 1 );

        double[][] b_array=b.getArray();

        double[] a_pt0,a_pt1,world_pti;

        for(int i = 0; i < 4; i++ ) {

            a_pt0=a_array[i*2];

            a_pt1=a_array[i*2+1];

            world_pti=world[i];

            a_pt0[0]=world_pti[0];//a->m[i*16+0]  = world[i][0];

            a_pt0[1]=world_pti[1];//a->m[i*16+1]  = world[i][1];

            a_pt0[2]=1.0;//a->m[i*16+2]  = 1.0;

            a_pt0[3]=0.0;//a->m[i*16+3]  = 0.0;

            a_pt0[4]=0.0;//a->m[i*16+4]  = 0.0;

            a_pt0[5]=0.0;//a->m[i*16+5]  = 0.0;

            a_pt0[6]=-world_pti[0] * vertex[i][0];//a->m[i*16+6]  = -world[i][0] * vertex[i][0];

            a_pt0[7]=-world_pti[1] * vertex[i][0];//a->m[i*16+7]  = -world[i][1] * vertex[i][0];

            a_pt1[0]=0.0;//a->m[i*16+8]  = 0.0;

            a_pt1[1]=0.0;//a->m[i*16+9]  = 0.0;

            a_pt1[2]=0.0;//a->m[i*16+10] = 0.0;

            a_pt1[3]=world_pti[0];//a->m[i*16+11] = world[i][0];

            a_pt1[4]=world_pti[1];//a->m[i*16+12] = world[i][1];

            a_pt1[5]=1.0;//a->m[i*16+13] = 1.0;

            a_pt1[6]=-world_pti[0] * vertex[i][1];//a->m[i*16+14] = -world[i][0] * vertex[i][1];

            a_pt1[7]=-world_pti[1] * vertex[i][1];//a->m[i*16+15] = -world[i][1] * vertex[i][1];

            b_array[i*2+0][0]=vertex[i][0];//b->m[i*2+0] = vertex[i][0];

            b_array[i*2+1][0]=vertex[i][1];//b->m[i*2+1] = vertex[i][1];

        }

//          JartkException.trap("未チェックのパス");

        if(!a.matrixSelfInv()){

            return false;//逆行列を求められないので失敗

        }

//          JartkException.trap("未チェックのパス");

        NyARMat c = wk_get_cpara_c;//次処理で結果を受け取るので、初期化不要//new NyARMat( 8, 1 );

        double[][] c_array=c.getArray();

        c.matrixMul(a, b);

        for(int i = 0; i < 2; i++ ) {

            para[i*3+0] = c_array[i*3+0][0];//para[i][0] = c->m[i*3+0];

            para[i*3+1] = c_array[i*3+1][0];//para[i][1] = c->m[i*3+1];

            para[i*3+2] = c_array[i*3+2][0];//para[i][2] = c->m[i*3+2];

        }

        para[2*3+0] = c_array[2*3+0][0];//para[2][0] = c->m[2*3+0];

        para[2*3+1] = c_array[2*3+1][0];//para[2][1] = c->m[2*3+1];

        para[2*3+2] = 1.0;//para[2][2] = 1.0;

        return true;

    }

    private final double[][] wk_pickFromRaster_local=new double[4][2];

    private final double[] wk_pickFromRaster_para=new double[9];//[3][3];

    private int[][][] wk_pickFromRaster_ext_pat2=null;//コンストラクタでint[height][width][3]を作る

    private final double[][] wk_pickFromRaster_world={//double    world[4][2];

            {100.0,     100.0},

            {100.0+10.0,100.0},

            {100.0+10.0,100.0 + 10.0},

            {100.0,     100.0 + 10.0}

    };

    /**

     * pickFromRaster関数から使う変数です。

     *

     */

    private static void initValue_wk_pickFromRaster_ext_pat2(int[][][] i_ext_pat2,int i_width,int i_height)

    {

        int i,i2;

        int[][] pt2;

        int[]   pt1;

        for(i=i_height-1;i>=0;i--){

            pt2=i_ext_pat2[i];

            for(i2=i_width-1;i2>=0;i2--){

                pt1=pt2[i2];

                pt1[0]=0;

                pt1[1]=0;

                pt1[2]=0;

            }

        }

    }

    private final int[] wk_pickFromRaster_rgb_tmp=new int[3];

    /**

     * imageから、i_markerの位置にあるパターンを切り出して、保持します。

     * Optimize:STEP[769->]

     * @param image

     * @param i_marker

     * @return

     * 切り出しに失敗した

     * @throws Exception

     */

    public boolean pickFromRaster(NyARRaster image, NyARMarker i_marker) throws NyARException

    {

        double          d, xw, yw;

        int             xc, yc;

        int             xdiv, ydiv;

        int             xdiv2, ydiv2;

        int             lx1, lx2, ly1, ly2;

        int img_x=image.getWidth();

        int img_y=image.getHeight();

        double    xdiv2_reciprocal; // [tp]

        double    ydiv2_reciprocal; // [tp]

        int[] x_coord=i_marker.x_coord;

        int[] y_coord=i_marker.y_coord;

        double[][] local=wk_pickFromRaster_local;//double    local[4][2];       

        int[] vertex=i_marker.mkvertex;

        for(int i = 0; i < 4; i++ ) {

            local[i][0] = x_coord[vertex[i]];

            local[i][1] = y_coord[vertex[i]];

        }

        double[][] world=wk_pickFromRaster_world;

/*      world[0][0] = 100.0;

        world[0][1] = 100.0;

        world[1][0] = 100.0 + 10.0;

        world[1][1] = 100.0;

        world[2][0] = 100.0 + 10.0;

        world[2][1] = 100.0 + 10.0;

        world[3][0] = 100.0;

        world[3][1] = 100.0 + 10.0;*/

        double[] para =wk_pickFromRaster_para; //double    para[3][3];

        //パターンの切り出しに失敗することもある。

        if(!get_cpara( world, local, para )){

            return false;

        }

        lx1 = (int)((local[0][0] - local[1][0])*(local[0][0] - local[1][0])+ (local[0][1] - local[1][1])*(local[0][1] - local[1][1]));

        lx2 = (int)((local[2][0] - local[3][0])*(local[2][0] - local[3][0])+ (local[2][1] - local[3][1])*(local[2][1] - local[3][1]));

        ly1 = (int)((local[1][0] - local[2][0])*(local[1][0] - local[2][0])+ (local[1][1] - local[2][1])*(local[1][1] - local[2][1]));

        ly2 = (int)((local[3][0] - local[0][0])*(local[3][0] - local[0][0])+ (local[3][1] - local[0][1])*(local[3][1] - local[0][1]));

        if( lx2 > lx1 ){

            lx1 = lx2;

        }

        if( ly2 > ly1 ){

            ly1 = ly2;

        }

        xdiv2 =this.width;

        ydiv2 =this.height;

        while( xdiv2*xdiv2 < lx1/4 ){

            xdiv2*=2;

        }

        while( ydiv2*ydiv2 < ly1/4 ){

            ydiv2*=2;

        }

        if( xdiv2 > AR_PATT_SAMPLE_NUM)

        {

            xdiv2 =AR_PATT_SAMPLE_NUM;

        }

        if( ydiv2 >AR_PATT_SAMPLE_NUM)

        {

            ydiv2 = AR_PATT_SAMPLE_NUM;

        }

        xdiv = xdiv2/width;//xdiv = xdiv2/Config.AR_PATT_SIZE_X;

        ydiv = ydiv2/height;//ydiv = ydiv2/Config.AR_PATT_SIZE_Y;

        /*wk_pickFromRaster_ext_pat2ワーク変数を初期化する。*/

        int[][][] ext_pat2=wk_pickFromRaster_ext_pat2;//ARUint32  ext_pat2[AR_PATT_SIZE_Y][AR_PATT_SIZE_X][3];

        int extpat_j[][],extpat_j_i[];

        int ext_pat2_j[][],ext_pat2_j_i[];

        initValue_wk_pickFromRaster_ext_pat2(ext_pat2,this.width,this.height);

        xdiv2_reciprocal = 1.0 / xdiv2;

        ydiv2_reciprocal = 1.0 / ydiv2;

        int i,j;

        int[] rgb_tmp=wk_pickFromRaster_rgb_tmp;

        //      arGetCode_put_zero(ext_pat2);//put_zero( (ARUint8 *)ext_pat2, AR_PATT_SIZE_Y*AR_PATT_SIZE_X*3*sizeof(ARUint32) );

        for(j = 0; j < ydiv2; j++ ) {

            yw = 102.5 + 5.0 * (j+0.5) * ydiv2_reciprocal;

            for(i = 0; i < xdiv2; i++ ) {

                xw = 102.5 + 5.0 * (i+0.5) * xdiv2_reciprocal;

                d = para[2*3+0]*xw + para[2*3+1]*yw + para[2*3+2];

                if( d == 0 ){

                    throw new NyARException();

                }

                xc = (int)((para[0*3+0]*xw + para[0*3+1]*yw + para[0*3+2])/d);

                yc = (int)((para[1*3+0]*xw + para[1*3+1]*yw + para[1*3+2])/d);

                if( xc >= 0 && xc < img_x && yc >= 0 && yc < img_y ) {

                    image.getPixel(xc, yc, rgb_tmp);

                    ext_pat2_j_i=ext_pat2[j/ydiv][i/xdiv];

                    ext_pat2_j_i[0] += rgb_tmp[0];//R

                    ext_pat2_j_i[1] += rgb_tmp[1];//G

                    ext_pat2_j_i[2] += rgb_tmp[2];//B

//                  System.out.println(xc+":"+yc+":"+rgb_tmp[0]+":"+rgb_tmp[1]+":"+rgb_tmp[2]);

                }

            }

        }

//      short[][][] ext_pat=new short[Config.AR_PATT_SIZE_Y][Config.AR_PATT_SIZE_X][3];//ARUint32  ext_pat2[AR_PATT_SIZE_Y][AR_PATT_SIZE_X][3];

        /*<Optimize>*/

        int xdiv_x_ydiv=xdiv*ydiv;

        for(j =  this.height-1; j>=0; j--){

            extpat_j=extpat[j];

            ext_pat2_j=ext_pat2[j];

            for(i = this.width-1; i>=0; i--){                           // PRL 2006-06-08.

                ext_pat2_j_i=ext_pat2_j[i];

                extpat_j_i=extpat_j[i];

                extpat_j_i[0]=(ext_pat2_j_i[0] / xdiv_x_ydiv);//ext_pat[j][i][0] = (byte)(ext_pat2[j][i][0] / (xdiv*ydiv));

                extpat_j_i[1]=(ext_pat2_j_i[1] / xdiv_x_ydiv);//ext_pat[j][i][1] = (byte)(ext_pat2[j][i][1] / (xdiv*ydiv));

                extpat_j_i[2]=(ext_pat2_j_i[2] / xdiv_x_ydiv);//ext_pat[j][i][2] = (byte)(ext_pat2[j][i][2] / (xdiv*ydiv));

            }

        }/*

        int xdiv_mul_ydiv=xdiv*ydiv;

        short [][] extpat_pt_2;

        short[]    extpat_pt_1;

        int[][]    ext_pat2_pt_2;

        int[]      ext_pat2_pt_1;

        for(int j=this.height-1; j>=0; j--){//for(int j = 0; j < this.height; j++ ){

            extpat_pt_2=extpat[j];

            ext_pat2_pt_2=ext_pat2[j];

            for(int i = this.width-1; i>=0; i--){//for(int i = 0; i < this.width; i++ ){                                // PRL 2006-06-08.

                extpat_pt_1=extpat_pt_2[i];

                ext_pat2_pt_1=ext_pat2_pt_2[i];        

                extpat_pt_1[0]=(short)(ext_pat2_pt_1[0] / xdiv_mul_ydiv);//ext_pat[j][i][0] = (byte)(ext_pat2[j][i][0] / (xdiv*ydiv));

                extpat_pt_1[1]=(short)(ext_pat2_pt_1[1] / xdiv_mul_ydiv);//ext_pat[j][i][1] = (byte)(ext_pat2[j][i][1] / (xdiv*ydiv));

                extpat_pt_1[2]=(short)(ext_pat2_pt_1[2] / xdiv_mul_ydiv);//ext_pat[j][i][2] = (byte)(ext_pat2[j][i][2] / (xdiv*ydiv));

            }

        }

        /*</Optimize>*/

        return true;

    }

}