1 /* |
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2 * Copyright (c) 2007, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package sun.java2d.pisces; |
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27 |
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28 public class Transform4 { |
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29 |
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30 public int m00, m01, m10, m11; |
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31 // double det; // det*65536 |
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32 |
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33 public Transform4() { |
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34 this(1 << 16, 0, 0, 1 << 16); |
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35 } |
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36 |
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37 public Transform4(int m00, int m01, |
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38 int m10, int m11) { |
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39 this.m00 = m00; |
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40 this.m01 = m01; |
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41 this.m10 = m10; |
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42 this.m11 = m11; |
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43 |
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44 // this.det = (double)m00*m11 - (double)m01*m10; |
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45 } |
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46 |
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47 // public Transform4 createInverse() { |
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48 // double dm00 = m00/65536.0; |
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49 // double dm01 = m01/65536.0; |
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50 // double dm10 = m10/65536.0; |
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51 // double dm11 = m11/65536.0; |
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52 |
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53 // double invdet = 65536.0/(dm00*dm11 - dm01*dm10); |
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54 |
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55 // int im00 = (int)( dm11*invdet); |
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56 // int im01 = (int)(-dm01*invdet); |
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57 // int im10 = (int)(-dm10*invdet); |
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58 // int im11 = (int)( dm00*invdet); |
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59 |
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60 // return new Transform4(im00, im01, im10, im11); |
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61 // } |
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62 |
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63 // public void transform(int[] point) { |
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64 // } |
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65 |
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66 // /** |
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67 // * Returns the length of the line segment obtained by inverse |
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68 // * transforming the points <code>(x0, y0)</code> and <code>(x1, |
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69 // * y1)</code>. |
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70 // */ |
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71 // public int getTransformedLength(int x0, int x1, int y0, int y1) { |
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72 // int lx = x1 - x0; |
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73 // int ly = y1 - y0; |
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74 |
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75 // double a = (double)m00*ly - (double)m10*lx; |
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76 // double b = (double)m01*ly - (double)m11*lx; |
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77 // double len = PiscesMath.sqrt((a*a + b*b)/(det*det)); |
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78 // return (int)(len*65536.0); |
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79 // } |
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80 |
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81 // public int getType() { |
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82 // } |
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83 |
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84 } |
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