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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。

 * 演算順序を含む最適化をしたもの

 *

 */

public class NyARColorPatt_O2 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_O2(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 o_para

     * @throws NyARException

     */

    private boolean get_cpara(double vertex_0[], double vertex_1[],NyARMat o_para) throws NyARException

    {

        double world[][]=this.wk_pickFromRaster_world;

        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_0[i];//a->m[i*16+6]  = -world[i][0] * vertex[i][0];

            a_pt0[7]=-world_pti[1] * vertex_0[i];//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_1[i];//a->m[i*16+14] = -world[i][0] * vertex[i][1];

            a_pt1[7]=-world_pti[1] * vertex_1[i];//a->m[i*16+15] = -world[i][1] * vertex[i][1];

            b_array[i*2+0][0]=vertex_0[i];//b->m[i*2+0] = vertex[i][0];

            b_array[i*2+1][0]=vertex_1[i];//b->m[i*2+1] = vertex[i][1];

        }

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

        if(!a.matrixSelfInv()){

            return false;

        }

//      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();

        o_para.matrixMul(a, b);

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

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

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

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

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

//      para[i*3+2] = c_array[1*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_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 double[][] wk_pickFromRaster_local=new double[2][4];

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

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

    /**

     * 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->750]

     * @param image

     * @param i_marker

     * @throws Exception

     */

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

    {

        NyARMat cpara=this.wk_pickFromRaster_cpara;

        //localの計算

        int[] x_coord=i_marker.x_coord;

        int[] y_coord=i_marker.y_coord;

        int[] vertex=i_marker.mkvertex;

        double[] local_0=wk_pickFromRaster_local[0];//double    local[4][2];    

        double[] local_1=wk_pickFromRaster_local[1];//double    local[4][2];    

        for(int i = 0; i < 4; i++ ) {

            local_0[i] = x_coord[vertex[i]];

            local_1[i] = y_coord[vertex[i]];

        }

        //xdiv2,ydiv2の計算

        int xdiv2, ydiv2;

        int l1,l2;

        double w1,w2;

        //x計算

        w1=local_0[0] - local_0[1];

        w2=local_1[0] - local_1[1];

        l1 = (int)(w1*w1+w2*w2);

        w1=local_0[2] - local_0[3];

        w2=local_1[2] - local_1[3];

        l2 = (int)(w1*w1+w2*w2);

        if( l2 > l1 ){

            l1 = l2;

        }

        l1=l1/4;

        xdiv2 =this.width;

        while( xdiv2*xdiv2 < l1 ){

            xdiv2*=2;

        }

        if( xdiv2 > AR_PATT_SAMPLE_NUM)

        {

            xdiv2 =AR_PATT_SAMPLE_NUM;

        }

        //y計算

        w1=local_0[1] - local_0[2];

        w2=local_1[1] - local_1[2];

        l1 = (int)(w1*w1+ w2*w2);

        w1=local_0[3] - local_0[0];

        w2=local_1[3] - local_1[0];

        l2 = (int)(w1*w1+ w2*w2);

        if( l2 > l1 ){

            l1 = l2;

        }

        ydiv2 =this.height;

        l1=l1/4;

        while( ydiv2*ydiv2 < l1 ){

            ydiv2*=2;

        }

        if( ydiv2 >AR_PATT_SAMPLE_NUM)

        {

            ydiv2 = AR_PATT_SAMPLE_NUM;

        }      

        //cparaの計算

        if(!get_cpara(local_0,local_1,cpara)){

            return false;

        }

        int img_x=image.getWidth();

        int img_y=image.getHeight();

        /*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);

        double[][] cpara_array=cpara.getArray();

        double para21_x_yw,para01_x_yw,para11_x_yw;

        double para00,para01,para02,para10,para11,para12,para20,para21;

        para00 = cpara_array[0*3+0][0];//para[i][0] = c->m[i*3+0];

        para01 = cpara_array[0*3+1][0];//para[i][1] = c->m[i*3+1];

        para02 = cpara_array[0*3+2][0];//para[i][2] = c->m[i*3+2];

        para10 = cpara_array[1*3+0][0];//para[i][0] = c->m[i*3+0];

        para11 = cpara_array[1*3+1][0];//para[i][1] = c->m[i*3+1];

        para12 = cpara_array[1*3+2][0];//para[i][2] = c->m[i*3+2];

        para20 = cpara_array[2*3+0][0];//para[2][0] = c->m[2*3+0];

        para21 = cpara_array[2*3+1][0];//para[2][1] = c->m[2*3+1];

        //para22 = 1.0;//para[2][2] = 1.0;

        double          d, xw, yw;

        int             xc, yc;

        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) );

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

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

        double xdiv2_reciprocal = 1.0 / xdiv2;

        double ydiv2_reciprocal = 1.0 / ydiv2;

        for(j = 0; j < ydiv2; j++ ) {

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

            para21_x_yw=para21*yw+1.0;

            para11_x_yw=para11*yw+para12;

            para01_x_yw=para01*yw+para02;

            ext_pat2_j=ext_pat2[j/ydiv];

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

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

                d = para20*xw + para21_x_yw;

                if( d == 0 ){

                    throw new NyARException();

                }

                xc = (int)((para00*xw + para01_x_yw)/d);

                yc = (int)((para10*xw + para11_x_yw)/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[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

                }

            }

        }

        /*<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));

            }

        }

        return true;

    }

}