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1 /* |
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2 * Copyright (c) 2003, 2004 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: CJ2kComponentInfo class used to collect component related |
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15 * information such as precincts size at each resolution level and |
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16 * list of subbands |
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17 * |
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18 */ |
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19 |
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20 |
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21 #ifndef __JP2KCOMPONENTINFO_H__ |
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22 #define __JP2KCOMPONENTINFO_H__ |
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23 |
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24 // INCLUDES |
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25 #include <e32base.h> |
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26 |
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27 // CONSTANTS |
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28 |
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29 // MACROS |
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30 |
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31 // DATA TYPES |
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32 |
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33 // FUNCTION PROTOTYPES |
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34 |
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35 // FORWARD DECLARATIONS |
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36 class CJ2kTileInfo; |
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37 class CJ2kSubband; |
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38 |
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39 // CLASS DECLARATION |
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40 |
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41 /** |
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42 * JP2KComponentInfo class used to collect component related |
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43 * information such as precincts size at each resolution level, |
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44 * list of subbands, and etc. It contains the data to control |
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45 * where to resume the parsing of the bitstream. |
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46 * |
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47 * JP2KCodec.dll |
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48 * @since 2.6 |
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49 */ |
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50 class CJ2kComponentInfo : public CBase |
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51 { |
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52 public: |
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53 public: // Constructors and destructor |
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54 |
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55 /** |
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56 * Two-phased constructor. |
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57 */ |
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58 static CJ2kComponentInfo* NewLC( CJ2kTileInfo& aTile, TUint16 aIndex ); |
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59 |
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60 /** |
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61 * Destructor. |
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62 */ |
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63 virtual ~CJ2kComponentInfo(); |
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64 |
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65 public: // New functions |
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66 |
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67 /** |
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68 * At each component, parse the bitstream with LRCP progression order |
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69 * @since 2.6 |
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70 * @param aTile: a reference to CJ2kTileInfo object. |
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71 * @return TUint8: true if incomplete, false if completed. |
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72 */ |
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73 TUint8 LRCPProgressionL( CJ2kTileInfo& aTile ); |
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74 |
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75 /** |
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76 * At each component, parse the bitstream with RPCL progression order |
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77 * @since 2.6 |
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78 * @param aTile: a reference to CJ2kTileInfo object. |
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79 * @return TUint8: true if incomplete, false if completed. |
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80 */ |
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81 TUint8 RPCLProgressionL( CJ2kTileInfo& aTile ); |
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82 |
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83 /** |
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84 * At each component, parse the bitstream with CPRL progression order |
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85 * @since 2.6 |
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86 * @param aTile: a reference to CJ2kTileInfo object. |
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87 * @return TUint8: true if incomplete, false if completed. |
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88 */ |
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89 TUint8 CPRLProgressionL( CJ2kTileInfo& aTile ); |
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90 |
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91 /** |
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92 * Get the subband at specific resolution level |
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93 * @since 2.6 |
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94 * @param aResLevel: resolution level. |
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95 * @return CJ2kSubband*: pointer to CJ2kSubband object. |
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96 */ |
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97 const CJ2kSubband* SubbandAt( TUint8 aResLevel ) const; |
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98 |
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99 /** |
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100 * Get the number of packets at specific resolution level |
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101 * @since 2.6 |
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102 * @param aResLevel: resolution level. |
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103 * @return TUint32: number of packets. |
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104 */ |
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105 TUint32 NumOfPackets( TUint8 aResLevel ) const; |
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106 |
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107 /** |
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108 * Get the quantization exponent value for transformation |
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109 * @since 2.6 |
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110 * @param aIndex: subband index. |
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111 * @return TUint8: exponent value. |
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112 */ |
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113 TUint8 Exponent( TUint16 aIndex ) const; |
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114 |
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115 /** |
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116 * Get the quantization mantissa value for transformation |
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117 * @since 2.6 |
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118 * @param aIndex: subband index. |
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119 * @return TUint16: mantissa value. |
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120 */ |
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121 TUint16 Mantissa( TUint16 aIndex ) const; |
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122 |
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123 /** |
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124 * Get the magnitude bits |
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125 * @since 2.6 |
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126 * @param aIndex: subband index. |
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127 * @return TUint8: magnitude bits. |
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128 */ |
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129 TUint8 MagnitudeBits( TUint16 aIndex ) const; |
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130 |
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131 /** |
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132 * Reset the last packet processed for each subband |
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133 * @since 2.6 |
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134 */ |
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135 void ResetLastPacketProcessed(); |
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136 |
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137 /** |
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138 * Get the resolution level |
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139 * @since 2.6 |
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140 * @return TUint8: resolution level. |
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141 */ |
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142 TUint8 Levels() const; |
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143 |
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144 /** |
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145 * Get the codeblock style |
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146 * @since 2.6 |
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147 * @return TUint8: codeblock style. |
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148 */ |
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149 TUint8 CodeBlockStyle() const; |
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150 |
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151 /** |
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152 * Get the number of guard |
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153 * @since 2.6 |
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154 * @return TUint8: number of guard. |
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155 */ |
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156 TUint8 NumGuard() const; |
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157 |
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158 /** |
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159 * Get the quantization style |
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160 * @since 2.6 |
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161 * @return TUint8: quantization style. |
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162 */ |
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163 TUint8 QuantizationStyle() const; |
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164 |
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165 /** |
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166 * Get the region of interest shifting |
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167 * @since 2.6 |
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168 * @return TUint8: region of interest shifting. |
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169 */ |
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170 TUint8 RoiShift() const; |
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171 |
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172 /** |
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173 * Get the codeblock size |
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174 * @since 2.6 |
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175 * @return TSize&: a reference to the codeblock size. |
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176 */ |
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177 const TSize& CodeBlockSize() const; |
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178 |
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179 /** |
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180 * Get the canvas of the component |
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181 * @since 2.6 |
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182 * @return TRect&: a reference to the component's canvas. |
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183 */ |
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184 const TRect& ComponentCanvas() const; |
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185 |
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186 /** |
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187 * Get the precinct size at specific resolution level |
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188 * @since 2.6 |
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189 * @param aResLevel: resolution level. |
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190 * @return TSize&: a reference to the precinct size. |
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191 */ |
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192 const TSize& PrecinctSizeAt( TUint8 aResLevel ) const; |
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193 |
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194 /** |
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195 * Get the minimum grid size |
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196 * @since 2.6 |
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197 * @return TSize&: a reference to the minimum grid. |
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198 */ |
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199 const TSize& MinGrid() const; |
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200 |
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201 /** |
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202 * Is coding style shows SOP marker may exists in codestream |
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203 * @since 2.6 |
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204 * @return TUInt8: true if SOP marker used. |
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205 */ |
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206 TUint8 IsSOPMarkerUsed() const; |
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207 |
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208 /** |
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209 * Is coding style shows EPH marker may exists in codestream |
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210 * @since 2.6 |
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211 * @return TUint8: true if EPH marker used. |
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212 */ |
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213 TUint8 IsEPHMarkerUsed() const; |
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214 |
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215 /** |
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216 * Is codeblock style shows AC bypass |
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217 * @since 2.6 |
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218 * @return TUint8: true if AC bypass. |
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219 */ |
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220 TUint8 IsACByPass() const; |
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221 |
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222 /** |
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223 * Is codeblock style shows termination |
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224 * @since 2.6 |
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225 * @return TUint8: true if termination. |
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226 */ |
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227 TUint8 IsTermination() const; |
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228 |
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229 /** |
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230 * Is transformation reversible |
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231 * @since 2.6 |
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232 * @return TUint8: true if reversible. |
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233 */ |
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234 TUint8 IsReversible() const; |
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235 |
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236 public: // Functions from base classes |
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237 |
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238 protected: // New functions |
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239 |
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240 protected: // Functions from base classes |
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241 |
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242 private: |
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243 |
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244 /** |
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245 * C++ default constructor. |
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246 */ |
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247 CJ2kComponentInfo(); |
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248 |
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249 /** |
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250 * By default Symbian 2nd phase constructor is private. |
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251 */ |
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252 void ConstructL( CJ2kTileInfo& aTile, TUint16 aIndex ); |
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253 |
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254 public: // Data |
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255 |
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256 protected: // Data |
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257 |
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258 private: // Data |
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259 |
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260 // Canvas of the component |
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261 TRect iComponentCanvas; |
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262 |
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263 // Root of the subbands |
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264 CJ2kSubband *iRootSubband; |
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265 |
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266 // Precincts at each resolution level |
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267 RArray<TSize> iPrecinctSizeList; |
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268 |
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269 // List of grid |
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270 RArray<TSize> iGridList; |
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271 |
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272 // Minimum grid size |
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273 TSize iMinGrid; |
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274 |
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275 // Size of codeblock |
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276 TSize iCodeBlockSiz; |
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277 |
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278 // Number of resolution level |
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279 TUint8 iNumOfLevels; |
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280 |
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281 // Codeblock style |
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282 TUint8 iCodeBlockStyle; |
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283 |
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284 // DWT transformation |
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285 TUint8 iWaveletTransformation; |
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286 |
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287 // Coding style |
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288 TUint8 iCod; |
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289 |
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290 // Quantization |
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291 TUint8 iQc; |
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292 |
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293 // Region of interest |
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294 TUint8 iRoiShift; |
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295 |
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296 // Quantization values for transformation |
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297 HBufC8 *iExponentList; |
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298 |
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299 // Quantization values for transformation |
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300 HBufC16 *iMantissaList; |
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301 |
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302 public: // Friend classes |
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303 |
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304 protected: // Friend classes |
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305 |
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306 private: // Friend classes |
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307 }; |
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308 |
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309 // For inliners. |
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310 #include "JP2KComponentInfo.inl" |
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311 |
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312 #endif // __JP2KCOMPONENTINFO_H__ |