//分割数16未満になると少し遅くなるかも。 private void updateExtpat(INyARRgbRaster image, NyARMat i_cpara, int i_xdiv2, int i_ydiv2) { int i, j; int r, g, b; //ピクセルリーダーを取得 int pat_size_w = this._size.w; int xdiv = i_xdiv2 / pat_size_w; // xdiv = xdiv2/Config.AR_PATT_SIZE_X; int ydiv = i_ydiv2 / this._size.h; // ydiv = ydiv2/Config.AR_PATT_SIZE_Y; int xdiv_x_ydiv = xdiv * ydiv; double reciprocal; double[][] para = i_cpara.getArray(); double para00 = para[0 * 3 + 0][0]; double para01 = para[0 * 3 + 1][0]; double para02 = para[0 * 3 + 2][0]; double para10 = para[1 * 3 + 0][0]; double para11 = para[1 * 3 + 1][0]; double para12 = para[1 * 3 + 2][0]; double para20 = para[2 * 3 + 0][0]; double para21 = para[2 * 3 + 1][0]; int img_width = image.getWidth(); int img_height = image.getHeight(); //ワークバッファの準備 reservWorkBuffers(xdiv, ydiv); double[] xw = this.__updateExtpat_xw; double[] yw = this.__updateExtpat_yw; int[] xc = this.__updateExtpat_xc; int[] yc = this.__updateExtpat_yc; int[] rgb_set = this.__updateExtpat_rgbset; for (int iy = this._size.h - 1; iy >= 0; iy--) { for (int ix = pat_size_w - 1; ix >= 0; ix--) { //xw,ywマップを作成 reciprocal = 1.0 / i_xdiv2; for (i = xdiv - 1; i >= 0; i--) { xw[i] = LT_POS + SQ_SIZE * (ix * xdiv + i + 0.5) * reciprocal; } reciprocal = 1.0 / i_ydiv2; for (i = ydiv - 1; i >= 0; i--) { yw[i] = LT_POS + SQ_SIZE * (iy * ydiv + i + 0.5) * reciprocal; } //1ピクセルを構成するピクセル座標の集合をxc,yc配列に取得 int number_of_pix = 0; for (i = ydiv - 1; i >= 0; i--) { double para01_x_yw_para02 = para01 * yw[i] + para02; double para11_x_yw_para12 = para11 * yw[i] + para12; double para12_x_yw_para22 = para21 * yw[i] + 1.0; for (j = xdiv - 1; j >= 0; j--) { double d = para20 * xw[j] + para12_x_yw_para22; if (d == 0) { throw new NyARRuntimeException(); } int xcw = (int)((para00 * xw[j] + para01_x_yw_para02) / d); int ycw = (int)((para10 * xw[j] + para11_x_yw_para12) / d); if (xcw < 0 || xcw >= img_width || ycw < 0 || ycw >= img_height) { continue; } xc[number_of_pix] = xcw; yc[number_of_pix] = ycw; number_of_pix++; } } //1ピクセル分の配列を取得 image.getPixelSet(xc, yc, number_of_pix, rgb_set); r = g = b = 0; for (i = number_of_pix * 3 - 1; i >= 0; i -= 3) { r += rgb_set[i - 2]; // R g += rgb_set[i - 1]; // G b += rgb_set[i]; // B } //1ピクセル確定 this._buf[iy * pat_size_w + ix] = (((r / xdiv_x_ydiv) & 0xff) << 16) | (((g / xdiv_x_ydiv) & 0xff) << 8) | (((b / xdiv_x_ydiv) & 0xff)); } } return; }