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1 /* |
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2 * Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * CDCDCDigitalZoom |
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16 * Scaling of image to display size & zooming. |
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17 * Includes support for different scaling and crop sizes with pan&scan. |
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18 * Pan can use previously computed scaled data when changing. |
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19 * Based on IMAAMI scaling algorithm. |
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20 * |
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21 */ |
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22 |
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23 |
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24 |
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25 #ifndef __DIGITAL_ZOOM_H |
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26 #define __DIGITAL_ZOOM_H |
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27 |
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28 #include <e32std.h> // for Fundamental Types |
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29 #include <e32base.h> // for Fundamental Types |
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30 #include <eikenv.h> |
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31 #include "DCDefines.h" |
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32 |
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33 //Const tables for computation speed-up |
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34 const TUint16 KDivTable[4 * 256] = |
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35 { |
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36 32768, 21845, 16384, 13107, 10923, 9362, 8192, 7282, |
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37 6554, 5958, 5461, 5041, 4681, 4369, 4096, 3855, 3641, 3449, |
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38 3277, 3121, 2979, 2849, 2731, 2621, 2521, 2427, 2341, 2260, |
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39 2185, 2114, 2048, 1986, 1928, 1872, 1820, 1771, 1725, 1680, |
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40 1638, 1598, 1560, 1524, 1489, 1456, 1425, 1394, 1365, 1337, |
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41 1311, 1285, 1260, 1237, 1214, 1192, 1170, 1150, 1130, 1111, |
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42 1092, 1074, 1057, 1040, 1024, 1008, 993, 978, 964, 950, |
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43 936, 923, 910, 898, 886, 874, 862, 851, 840, 830, |
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44 819, 809, 799, 790, 780, 771, 762, 753, 745, 736, |
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45 728, 720, 712, 705, 697, 690, 683, 676, 669, 662, |
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46 655, 649, 643, 636, 630, 624, 618, 612, 607, 601, |
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47 596, 590, 585, 580, 575, 570, 565, 560, 555, 551, |
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48 546, 542, 537, 533, 529, 524, 520, 516, 512, 508, |
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49 504, 500, 496, 493, 489, 485, 482, 478, 475, 471, |
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50 468, 465, 462, 458, 455, 452, 449, 446, 443, 440, |
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51 437, 434, 431, 428, 426, 423, 420, 417, 415, 412, |
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52 410, 407, 405, 402, 400, 397, 395, 392, 390, 388, |
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53 386, 383, 381, 379, 377, 374, 372, 370, 368, 366, |
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54 364, 362, 360, 358, 356, 354, 352, 350, 349, 347, |
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55 345, 343, 341, 340, 338, 336, 334, 333, 331, 329, |
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56 328, 326, 324, 323, 321, 320, 318, 317, 315, 314, |
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57 312, 311, 309, 308, 306, 305, 303, 302, 301, 299, |
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58 298, 297, 295, 294, 293, 291, 290, 289, 287, 286, |
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59 285, 284, 282, 281, 280, 279, 278, 277, 275, 274, |
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60 273, 272, 271, 270, 269, 267, 266, 265, 264, 263, |
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61 262, 261, 260, 259, 258, 257, 256, 255, 254, 253, |
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62 252, 251, 250, 249, 248, 247, 246, 245, 245, 244, |
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63 243, 242, 241, 240, 239, 238, 237, 237, 236, 235, |
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64 234, 233, 232, 232, 231, 230, 229, 228, 228, 227, |
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65 226, 225, 224, 224, 223, 222, 221, 221, 220, 219, |
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66 218, 218, 217, 216, 216, 215, 214, 213, 213, 212, |
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67 211, 211, 210, 209, 209, 208, 207, 207, 206, 205, |
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68 205, 204, 204, 203, 202, 202, 201, 200, 200, 199, |
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69 199, 198, 197, 197, 196, 196, 195, 194, 194, 193, |
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70 193, 192, 192, 191, 191, 190, 189, 189, 188, 188, |
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71 187, 187, 186, 186, 185, 185, 184, 184, 183, 183, |
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72 182, 182, 181, 181, 180, 180, 179, 179, 178, 178, |
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73 177, 177, 176, 176, 175, 175, 174, 174, 173, 173, |
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74 172, 172, 172, 171, 171, 170, 170, 169, 169, 168, |
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75 168, 168, 167, 167, 166, 166, 165, 165, 165, 164, |
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76 164, 163, 163, 163, 162, 162, 161, 161, 161, 160, |
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77 160, 159, 159, 159, 158, 158, 158, 157, 157, 156, |
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78 156, 156, 155, 155, 155, 154, 154, 153, 153, 153, |
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79 152, 152, 152, 151, 151, 151, 150, 150, 150, 149, |
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80 149, 149, 148, 148, 148, 147, 147, 147, 146, 146, |
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81 146, 145, 145, 145, 144, 144, 144, 143, 143, 143, |
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82 142, 142, 142, 142, 141, 141, 141, 140, 140, 140, |
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83 139, 139, 139, 139, 138, 138, 138, 137, 137, 137, |
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84 137, 136, 136, 136, 135, 135, 135, 135, 134, 134, |
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85 134, 133, 133, 133, 133, 132, 132, 132, 132, 131, |
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86 131, 131, 131, 130, 130, 130, 130, 129, 129, 129, |
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87 129, 128, 128, 128, 128, 127, 127, 127, 127, 126, |
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88 126, 126, 126, 125, 125, 125, 125, 124, 124, 124, |
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89 124, 123, 123, 123, 123, 122, 122, 122, 122, 122, |
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90 121, 121, 121, 121, 120, 120, 120, 120, 120, 119, |
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91 119, 119, 119, 119, 118, 118, 118, 118, 117, 117, |
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92 117, 117, 117, 116, 116, 116, 116, 116, 115, 115, |
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93 115, 115, 115, 114, 114, 114, 114, 114, 113, 113, |
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94 113, 113, 113, 112, 112, 112, 112, 112, 111, 111, |
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95 111, 111, 111, 111, 110, 110, 110, 110, 110, 109, |
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96 109, 109, 109, 109, 109, 108, 108, 108, 108, 108, |
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97 107, 107, 107, 107, 107, 107, 106, 106, 106, 106, |
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98 106, 106, 105, 105, 105, 105, 105, 105, 104, 104, |
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99 104, 104, 104, 104, 103, 103, 103, 103, 103, 103, |
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100 102, 102, 102, 102, 102, 102, 101, 101, 101, 101, |
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101 101, 101, 101, 100, 100, 100, 100, 100, 100, 99, |
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102 99, 99, 99, 99, 99, 99, 98, 98, 98, 98, |
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103 98, 98, 98, 97, 97, 97, 97, 97, 97, 97, |
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104 96, 96, 96, 96, 96, 96, 96, 95, 95, 95, |
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105 95, 95, 95, 95, 94, 94, 94, 94, 94, 94, |
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106 94, 93, 93, 93, 93, 93, 93, 93, 93, 92, |
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107 92, 92, 92, 92, 92, 92, 92, 91, 91, 91, |
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108 91, 91, 91, 91, 91, 90, 90, 90, 90, 90, |
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109 90, 90, 90, 89, 89, 89, 89, 89, 89, 89, |
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110 89, 88, 88, 88, 88, 88, 88, 88, 88, 87, |
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111 87, 87, 87, 87, 87, 87, 87, 87, 86, 86, |
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112 86, 86, 86, 86, 86, 86, 86, 85, 85, 85, |
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113 85, 85, 85, 85, 85, 85, 84, 84, 84, 84, |
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114 84, 84, 84, 84, 84, 83, 83, 83, 83, 83, |
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115 83, 83, 83, 83, 83, 82, 82, 82, 82, 82, |
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116 82, 82, 82, 82, 82, 81, 81, 81, 81, 81, |
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117 81, 81, 81, 81, 81, 80, 80, 80, 80, 80, |
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118 80, 80, 80, 80, 80, 79, 79, 79, 79, 79, |
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119 79, 79, 79, 79, 79, 78, 78, 78, 78, 78, |
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120 78, 78, 78, 78, 78, 78, 77, 77, 77, 77, |
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121 77, 77, 77, 77, 77, 77, 77, 76, 76, 76, |
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122 76, 76, 76, 76, 76, 76, 76, 76, 76, 75, |
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123 75, 75, 75, 75, 75, 75, 75, 75, 75, 75, |
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124 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, |
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125 74, 74, 73, 73, 73, 73, 73, 73, 73, 73, |
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126 73, 73, 73, 73, 72, 72, 72, 72, 72, 72, |
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127 72, 72, 72, 72, 72, 72, 72, 71, 71, 71, |
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128 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, |
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129 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, |
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130 70, 70, 70, 69, 69, 69, 69, 69, 69, 69, |
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131 69, 69, 69, 69, 69, 69, 69, 68, 68, 68, |
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132 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, |
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133 68, 67, 67, 67, 67, 67, 67, 67, 67, 67, |
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134 67, 67, 67, 67, 67, 67, 66, 66, 66, 66, |
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135 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, |
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136 66, 65, 65, 65, 65, 65, 65, 65, 65, 65, |
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137 65, 65, 65, 65, 65, 65, 65, 64, 64, 64, |
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138 64, 64, 64, 64, 64, 64 |
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139 }; |
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140 |
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141 |
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142 |
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143 |
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144 // Class definition |
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145 class CDCDigitalZoom : public CBase |
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146 { |
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147 public: |
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148 |
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149 // Struct definition |
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150 struct DCDigitalZoomParams |
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151 { |
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152 TInt sizeX; //Output size |
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153 TInt sizeY; |
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154 TReal scaleX; //Scaling factors |
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155 TReal scaleY; |
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156 TInt allShiftX; //Pan location |
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157 TInt allShiftY; |
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158 TInt newShiftX; //Change in pan (used for speed-up) |
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159 TInt newShiftY; //only one value at time can be >0 |
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160 }; |
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161 |
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162 //Standard class functions |
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163 CDCDigitalZoom(); |
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164 void ConstructL(); |
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165 static CDCDigitalZoom* NewL(); |
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166 static CDCDigitalZoom* NewLC(); |
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167 ~CDCDigitalZoom(); |
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168 |
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169 // Process original image and store output image (main function) |
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170 void ProcessL(const CFbsBitmap* aOriPtr, CFbsBitmap* aOutPtr); |
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171 |
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172 //Set processing parameters |
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173 void SetParameters(DCDigitalZoomParams* params); |
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174 |
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175 //Get current processing parameters |
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176 void GetParameters(DCDigitalZoomParams* params); |
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177 |
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178 protected: |
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179 |
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180 //Parameters |
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181 DCDigitalZoomParams iParams; |
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182 |
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183 private: |
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184 |
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185 //Do actual resizing |
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186 void DecimateL(const CFbsBitmap* aOriPtr, CFbsBitmap* aOutPtr, |
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187 TInt aOutSizeX, TInt aOutSizeY, |
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188 TInt aOriSizeX, TInt aOriSizeY, |
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189 TReal aZoomX, TReal aZoomY, |
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190 TInt allShiftX, TInt allShiftY, |
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191 TInt newShiftX, TInt newShiftY); |
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192 }; |
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193 #endif // ifndef __DIGITAL_ZOOM_H |
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194 //----IMAAMI---- |