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1 /* |
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2 * Copyright (c) 2009 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: ?Description |
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15 * |
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16 */ |
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17 |
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18 #include "glximagedecoder.h" |
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19 #include "glximagedecoderwrapper.h" |
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20 |
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21 #include <bitmaptransforms.h> |
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22 #include <imageconversion.h> |
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23 #include <IclExtJpegApi.h> // For CExtJpegDecoder |
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24 |
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25 |
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26 // --------------------------------------------------------------------------- |
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27 // Two-phased constructor. |
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28 // --------------------------------------------------------------------------- |
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29 // |
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30 CGlxImageDecoder* CGlxImageDecoder::NewL(GlxImageDecoderWrapper* decoderWrapper) |
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31 { |
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32 CGlxImageDecoder* self = new(ELeave)CGlxImageDecoder(); |
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33 CleanupStack::PushL(self); |
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34 self->ConstructL(decoderWrapper); |
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35 CleanupStack::Pop(self); |
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36 return self; |
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37 } |
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38 |
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39 // --------------------------------------------------------------------------- |
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40 // Constructor |
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41 // --------------------------------------------------------------------------- |
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42 // |
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43 CGlxImageDecoder::CGlxImageDecoder() |
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44 :CActive( EPriorityStandard ) |
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45 { |
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46 } |
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47 |
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48 // --------------------------------------------------------------------------- |
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49 // Destructor |
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50 // --------------------------------------------------------------------------- |
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51 // |
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52 |
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53 CGlxImageDecoder::~CGlxImageDecoder() |
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54 { |
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55 iFs.Close(); |
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56 Cancel(); |
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57 if (iImageDecoder) |
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58 { |
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59 delete iImageDecoder; |
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60 iImageDecoder = NULL; |
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61 } |
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62 if(iBitmap) { |
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63 delete iBitmap; |
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64 iBitmap = NULL; |
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65 } |
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66 } |
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67 |
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68 // --------------------------------------------------------------------------- |
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69 // ConstructL |
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70 // --------------------------------------------------------------------------- |
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71 void CGlxImageDecoder::ConstructL(GlxImageDecoderWrapper* decoderWrapper) |
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72 { |
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73 iDecoderWrapper = decoderWrapper; |
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74 User::LeaveIfError(iFs.Connect()); |
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75 CActiveScheduler::Add( this ); |
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76 } |
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77 |
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78 // --------------------------------------------------------------------------- |
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79 // DoDecodeImageL |
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80 // --------------------------------------------------------------------------- |
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81 void CGlxImageDecoder::DecodeImageL(QString aSourceFileName) |
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82 { |
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83 //convert the argument to Symbian Format |
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84 TPtrC16 sourceFileName(reinterpret_cast<const TUint16*>(aSourceFileName.utf16())); |
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85 if (iImageDecoder) |
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86 { |
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87 iImageDecoder->Cancel(); |
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88 delete iImageDecoder; |
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89 iImageDecoder = NULL; |
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90 } |
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91 /*TRAPD( err, iImageDecoder = CExtJpegDecoder::FileNewL( |
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92 CExtJpegDecoder::EHwImplementation, iFs, sourceFileName, CImageDecoder::EOptionNone ) ); |
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93 if ( KErrNone != err ) |
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94 { |
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95 TRAP(err,iImageDecoder = CExtJpegDecoder::FileNewL( |
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96 CExtJpegDecoder::ESwImplementation, iFs, sourceFileName, CImageDecoder::EOptionNone ) ); |
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97 if ( KErrNone != err ) |
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98 { |
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99 // Not a JPEG - use standard decoder |
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100 iImageDecoder = CImageDecoder::FileNewL( iFs, sourceFileName, CImageDecoder::EOptionNone ); |
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101 } |
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102 }*/ |
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103 iImageDecoder = CImageDecoder::FileNewL( iFs, sourceFileName, CImageDecoder::EOptionNone ); |
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104 TSize imageSize = iImageDecoder->FrameInfo().iOverallSizeInPixels; |
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105 //clear the existing Bitmap |
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106 if(iBitmap) |
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107 { |
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108 delete iBitmap; |
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109 iBitmap = NULL; |
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110 } |
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111 // create the destination bitmap and pass it on to the decoder |
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112 if(!iBitmap) |
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113 { |
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114 iBitmap = new (ELeave) CFbsBitmap(); |
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115 iBitmap->Create( imageSize,EColor64K); |
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116 iImageDecoder->Convert( &iStatus, *iBitmap ); |
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117 SetActive(); |
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118 } |
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119 } |
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120 // --------------------------------------------------------------------------- |
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121 // RunL |
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122 // --------------------------------------------------------------------------- |
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123 // |
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124 void CGlxImageDecoder::RunL() |
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125 { |
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126 if( iStatus == KErrNone ) |
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127 { |
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128 iDecoderWrapper->decodedImageAvailable(); |
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129 delete iImageDecoder; |
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130 iImageDecoder = NULL; |
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131 iFs.Close(); |
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132 } |
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133 } |
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134 |
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135 // --------------------------------------------------------------------------- |
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136 // DoCancel |
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137 // --------------------------------------------------------------------------- |
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138 // |
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139 void CGlxImageDecoder::DoCancel() |
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140 { |
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141 if(iImageDecoder) |
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142 { |
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143 iImageDecoder->Cancel(); |
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144 delete iImageDecoder; |
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145 iImageDecoder = NULL; |
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146 } |
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147 iFs.Close(); |
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148 if(iBitmap) |
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149 { |
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150 delete iBitmap; |
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151 iBitmap = NULL; |
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152 } |
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153 //todo add cleanup logic for pixmap |
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154 } |
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155 |
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156 // --------------------------------------------------------------------------- |
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157 // GetPixmap |
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158 // --------------------------------------------------------------------------- |
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159 // |
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160 QPixmap CGlxImageDecoder::GetPixmap() |
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161 { |
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162 if(iBitmap) |
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163 { |
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164 //convert the bitmap to pixmap |
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165 iBitmap->LockHeap(); |
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166 TUint32 *tempData = iBitmap->DataAddress(); |
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167 uchar *data = (uchar *)(tempData); |
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168 int bytesPerLine = iBitmap->ScanLineLength(iBitmap->SizeInPixels().iWidth , iBitmap->DisplayMode()); |
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169 QImage::Format format; |
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170 switch(iBitmap->DisplayMode()) { |
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171 case EGray2: |
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172 format = QImage::Format_MonoLSB; |
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173 break; |
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174 case EColor256: |
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175 case EGray256: |
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176 format = QImage::Format_Indexed8; |
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177 break; |
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178 case EColor4K: |
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179 format = QImage::Format_RGB444; |
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180 break; |
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181 case EColor64K: |
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182 format = QImage::Format_RGB16; |
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183 break; |
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184 case EColor16M: |
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185 format = QImage::Format_RGB666; |
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186 break; |
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187 case EColor16MU: |
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188 format = QImage::Format_RGB32; |
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189 break; |
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190 case EColor16MA: |
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191 format = QImage::Format_ARGB32; |
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192 break; |
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193 #if !defined(__SERIES60_31__) && !defined(__S60_32__) |
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194 case EColor16MAP: |
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195 format = QImage::Format_ARGB32_Premultiplied; |
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196 break; |
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197 #endif |
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198 default: |
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199 format = QImage::Format_Invalid; |
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200 break; |
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201 } |
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202 //QImage share the memory occupied by data |
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203 QImage image(data, iBitmap->SizeInPixels().iWidth, iBitmap->SizeInPixels().iHeight, bytesPerLine, format); |
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204 iDecodedPixmap = QPixmap::fromImage(image); |
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205 iBitmap->UnlockHeap(); |
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206 //clean the bitmap as it is not required anymore |
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207 delete iBitmap; |
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208 iBitmap = NULL; |
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209 } |
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210 return iDecodedPixmap; |
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211 } |
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212 |
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213 // --------------------------------------------------------------------------- |
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214 // ResetDecoder |
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215 // --------------------------------------------------------------------------- |
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216 // |
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217 |
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218 void CGlxImageDecoder::ResetDecoder() |
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219 { |
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220 Cancel(); |
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221 if(iBitmap) { |
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222 delete iBitmap; |
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223 iBitmap = NULL; |
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224 } |
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225 iDecodedPixmap = QPixmap(); |
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226 } |
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227 |