1 /* |
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2 * Copyright (c) 2002 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: Tools for image conversion. |
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15 * |
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16 */ |
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17 |
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18 |
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19 // INCLUDE FILES |
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20 #include "BTServiceUtils.h" |
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21 #include "BTSUImageConverter.h" |
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22 #include "BTSUDebug.h" |
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23 |
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24 #include <imageconversion.h> |
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25 #include <bitmaptransforms.h> |
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26 |
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27 //CONSTANTS |
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28 _LIT8( KBTSUImageTypeJpeg, "image/jpeg" ); |
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29 const TInt KBTSUJpegQualityFactor = 90; |
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30 const TInt KBTSUImageThumbWidth = 160; |
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31 const TInt KBTSUImageThumbHeight = 120; |
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32 |
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33 |
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34 // ============================ MEMBER FUNCTIONS =============================== |
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35 |
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36 // ----------------------------------------------------------------------------- |
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37 // CBTSUImageConverter::CBTSUImageConverter |
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38 // Constructor. |
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39 // ----------------------------------------------------------------------------- |
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40 // |
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41 CBTSUImageConverter::CBTSUImageConverter(): CActive( EPriorityStandard ) |
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42 { |
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43 CActiveScheduler::Add( this ); |
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44 } |
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45 |
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46 // ----------------------------------------------------------------------------- |
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47 // Destructor |
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48 // ----------------------------------------------------------------------------- |
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49 // |
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50 CBTSUImageConverter::~CBTSUImageConverter() |
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51 { |
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52 FLOG(_L("[BTSU]\t CBTSUImageConverter::~CBTSUImageConverter()")); |
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53 |
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54 Cancel(); |
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55 Reset(); |
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56 iFileSession.Close(); |
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57 |
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58 FLOG(_L("[BTSU]\t CBTSUImageConverter::~CBTSUImageConverter() completed")); |
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59 } |
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60 |
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61 // ----------------------------------------------------------------------------- |
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62 // CBTSUImageConverter::NewL |
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63 // Two-phased constructor. |
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64 // ----------------------------------------------------------------------------- |
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65 // |
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66 CBTSUImageConverter* CBTSUImageConverter::NewL() |
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67 { |
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68 CBTSUImageConverter* self = new (ELeave) CBTSUImageConverter; |
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69 CleanupStack::PushL( self ); |
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70 self->ConstructL(); |
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71 CleanupStack::Pop(); |
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72 return self; |
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73 } |
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74 |
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75 // ----------------------------------------------------------------------------- |
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76 // CBTSUImageConverter::ConstructL |
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77 // Symbian 2nd phase constructor. |
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78 // ----------------------------------------------------------------------------- |
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79 // |
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80 void CBTSUImageConverter::ConstructL() |
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81 { |
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82 FLOG(_L("[BTSU]\t CBTSUImageConverter::ConstructL()")); |
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83 |
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84 User::LeaveIfError( iFileSession.Connect() ); |
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85 iFileSession.ShareProtected(); |
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86 |
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87 FLOG(_L("[BTSU]\t CBTSUImageConverter::ConstructL() completed")); |
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88 } |
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89 |
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90 // ----------------------------------------------------------------------------- |
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91 // CBTSUImageConverter::GetImageSizeL |
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92 // ----------------------------------------------------------------------------- |
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93 // |
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94 TSize CBTSUImageConverter::GetImageSizeL( RFile& aImageFile ) |
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95 { |
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96 FLOG(_L("[BTSU]\t CBTSUImageConverter::GetImageSizeL()")); |
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97 |
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98 CImageDecoder* decoder = CImageDecoder::FileNewL(aImageFile,ContentAccess::EPeek ); |
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99 TSize size = decoder->FrameInfo().iOverallSizeInPixels; |
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100 delete decoder; |
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101 |
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102 FTRACE(FPrint(_L("[BTSU]\t CBTSUImageConverter::GetImageSizeL() completed w=%d h=%d"), size.iWidth, size.iHeight )); |
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103 |
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104 return size; |
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105 } |
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106 |
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107 // ----------------------------------------------------------------------------- |
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108 // CBTSUImageConverter::CreateThumbnailL |
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109 // ----------------------------------------------------------------------------- |
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110 // |
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111 void CBTSUImageConverter::CreateThumbnailL( RFile& aSourceFile, |
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112 const TDesC& aDestFile ) |
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113 { |
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114 FLOG(_L("[BTSU]\t CBTSUImageConverter::CreateThumbnailL()")); |
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115 |
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116 |
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117 Reset(); |
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118 DecodeImageL( aSourceFile ); |
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119 ScaleImageL(); |
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120 EncodeImageL( aDestFile, ETrue ); |
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121 Reset(); |
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122 |
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123 FLOG(_L("[BTSU]\t CBTSUImageConverter::CreateThumbnailL() completed")); |
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124 } |
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125 |
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126 // ----------------------------------------------------------------------------- |
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127 // CBTSUImageConverter::GetDisplayNameL |
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128 // ----------------------------------------------------------------------------- |
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129 // |
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130 HBufC* CBTSUImageConverter::GetDisplayNameL( const TDesC8& aMimeType ) |
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131 { |
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132 FLOG(_L("[BTSU]\t CBTSUImageConverter::GetDisplayNameL()")); |
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133 |
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134 if ( &aMimeType == NULL || |
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135 aMimeType.Length() == 0 || |
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136 aMimeType.Length() > KMaxFileName ) |
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137 { |
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138 User::Leave( KErrArgument ); |
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139 } |
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140 |
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141 HBufC* name = NULL; |
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142 |
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143 // Get file types from decoder |
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144 // |
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145 RFileExtensionMIMETypeArray fileTypes; |
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146 CleanupResetAndDestroyPushL( fileTypes ); |
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147 CImageDecoder::GetFileTypesL( fileTypes ); |
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148 |
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149 // Find the display name for the mime type |
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150 // |
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151 for( TInt index = 0; index < fileTypes.Count(); index++ ) |
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152 { |
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153 if ( fileTypes[index]->MIMEType() == aMimeType ) |
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154 { |
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155 name = fileTypes[index]->DisplayName().AllocL(); |
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156 break; |
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157 } |
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158 } |
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159 |
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160 CleanupStack::PopAndDestroy(); // fileTypes |
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161 |
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162 if ( name == NULL ) |
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163 { |
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164 // No display name found, so the image type is not supported. |
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165 // |
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166 User::Leave( KErrNotSupported ); |
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167 } |
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168 |
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169 FLOG(_L("[BTSU]\t CBTSUImageConverter::GetDisplayNameL() completed")); |
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170 |
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171 return name; |
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172 } |
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173 |
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174 |
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175 // ----------------------------------------------------------------------------- |
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176 // CBTSUImageConverter::DoCancel |
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177 // ----------------------------------------------------------------------------- |
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178 // |
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179 void CBTSUImageConverter::DoCancel() |
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180 { |
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181 FLOG(_L("[BTSU]\t CBTSUImageConverter::DoCancel()")); |
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182 |
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183 if ( iDecoder ) |
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184 { |
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185 iDecoder->Cancel(); |
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186 } |
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187 if ( iScaler ) |
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188 { |
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189 iScaler->Cancel(); |
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190 } |
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191 if ( iEncoder ) |
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192 { |
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193 iEncoder->Cancel(); |
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194 } |
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195 |
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196 FLOG(_L("[BTSU]\t CBTSUImageConverter::DoCancel() completed")); |
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197 } |
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198 |
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199 // ----------------------------------------------------------------------------- |
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200 // CBTSUImageConverter::RunL |
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201 // ----------------------------------------------------------------------------- |
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202 // |
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203 void CBTSUImageConverter::RunL() |
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204 { |
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205 FTRACE(FPrint(_L("[BTSU]\t CBTSUImageConverter::RunL() %d"), iStatus.Int() )); |
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206 |
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207 iWait.AsyncStop(); |
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208 |
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209 FLOG(_L("[BTSU]\t CBTSUImageConverter::RunL() completed")); |
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210 } |
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211 |
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212 // ----------------------------------------------------------------------------- |
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213 // CBTSUImageConverter::DecodeImageL |
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214 // ----------------------------------------------------------------------------- |
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215 // |
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216 void CBTSUImageConverter::DecodeImageL( RFile& aSourceFile ) |
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217 { |
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218 FLOG(_L("[BTSU]\t CBTSUImageConverter::DecodeImageL( )")); |
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219 |
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220 __ASSERT_DEBUG( iDecoder == NULL, BTSUPanic( EBTSUPanicExistingObject ) ); |
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221 __ASSERT_DEBUG( iFrameBitmap == NULL, BTSUPanic( EBTSUPanicExistingObject ) ); |
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222 |
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223 // Create decoder |
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224 // |
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225 iDecoder = CImageDecoder::FileNewL(aSourceFile, ContentAccess::EPeek ); |
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226 |
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227 // Create a bitmap |
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228 // |
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229 iFrameBitmap = new ( ELeave ) CFbsBitmap; |
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230 User::LeaveIfError( iFrameBitmap->Create( |
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231 iDecoder->FrameInfo().iOverallSizeInPixels, |
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232 iDecoder->FrameInfo().iFrameDisplayMode ) ); |
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233 |
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234 // Start decoding |
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235 // |
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236 iDecoder->Convert( &iStatus, *iFrameBitmap ); |
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237 SetActive(); |
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238 |
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239 iWait.Start(); // Wait here until decoding is completed |
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240 User::LeaveIfError( iStatus.Int() ); |
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241 |
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242 FLOG(_L("[BTSU]\t CBTSUImageConverter::DecodeImageL() completed")); |
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243 } |
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244 |
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245 // ----------------------------------------------------------------------------- |
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246 // CBTSUImageConverter::EncodeImageL |
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247 // ----------------------------------------------------------------------------- |
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248 // |
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249 void CBTSUImageConverter::EncodeImageL( const TDesC& aDestFile, |
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250 const TBool& aThumbnail ) |
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251 { |
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252 FLOG(_L("[BTSU]\t CBTSUImageConverter::EncodeImageL()")); |
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253 |
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254 __ASSERT_DEBUG( iDecoder != NULL, BTSUPanic( EBTSUPanicNullPointer ) ); |
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255 __ASSERT_DEBUG( iEncoder == NULL, BTSUPanic( EBTSUPanicExistingObject ) ); |
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256 __ASSERT_DEBUG( iFrameImageData == NULL, BTSUPanic( EBTSUPanicExistingObject ) ); |
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257 |
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258 // Create encoder |
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259 // |
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260 iEncoder = CImageEncoder::FileNewL( iFileSession, aDestFile, KBTSUImageTypeJpeg() ); |
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261 |
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262 // Create frame image data |
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263 // |
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264 iFrameImageData = CFrameImageData::NewL(); |
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265 TJpegImageData* jpegFormat = new ( ELeave ) TJpegImageData; |
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266 CleanupStack::PushL( jpegFormat ); |
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267 |
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268 jpegFormat->iSampleScheme = TJpegImageData::EColor422; |
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269 jpegFormat->iQualityFactor = KBTSUJpegQualityFactor; |
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270 User::LeaveIfError( iFrameImageData->AppendImageData( jpegFormat ) ); |
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271 CleanupStack::Pop( jpegFormat ); |
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272 |
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273 // Start encoding |
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274 // |
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275 if ( aThumbnail ) |
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276 { |
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277 __ASSERT_DEBUG( iScaledBitmap != NULL, BTSUPanic( EBTSUPanicNullPointer ) ); |
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278 iEncoder->Convert( &iStatus, *iScaledBitmap, iFrameImageData ); |
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279 } |
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280 else |
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281 { |
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282 __ASSERT_DEBUG( iFrameBitmap != NULL, BTSUPanic( EBTSUPanicNullPointer ) ); |
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283 iEncoder->Convert( &iStatus, *iFrameBitmap, iFrameImageData ); |
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284 } |
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285 |
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286 SetActive(); |
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287 iWait.Start(); // Wait here until encoding is completed |
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288 User::LeaveIfError( iStatus.Int() ); |
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289 |
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290 FLOG(_L("[BTSU]\t CBTSUImageConverter::EncodeImageL() completed")); |
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291 } |
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292 |
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293 // ----------------------------------------------------------------------------- |
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294 // CBTSUImageConverter::ScaleImageL |
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295 // ----------------------------------------------------------------------------- |
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296 // |
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297 void CBTSUImageConverter::ScaleImageL() |
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298 { |
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299 FLOG(_L("[BTSU]\t CBTSUImageConverter::ScaleImageL( )")); |
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300 |
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301 __ASSERT_DEBUG( iDecoder != NULL, BTSUPanic( EBTSUPanicNullPointer ) ); |
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302 __ASSERT_DEBUG( iFrameBitmap != NULL, BTSUPanic( EBTSUPanicNullPointer ) ); |
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303 __ASSERT_DEBUG( iScaler == NULL, BTSUPanic( EBTSUPanicExistingObject ) ); |
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304 __ASSERT_DEBUG( iScaledBitmap == NULL, BTSUPanic( EBTSUPanicExistingObject ) ); |
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305 |
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306 // Create scaler |
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307 // |
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308 iScaler = CBitmapScaler::NewL(); |
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309 |
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310 // Create a bitmap |
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311 // |
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312 iScaledBitmap = new ( ELeave ) CFbsBitmap; |
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313 TSize size; |
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314 size.iWidth = KBTSUImageThumbWidth; |
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315 size.iHeight = KBTSUImageThumbHeight; |
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316 User::LeaveIfError( iScaledBitmap->Create( size, |
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317 iDecoder->FrameInfo().iFrameDisplayMode ) ); |
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318 |
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319 // Start scaling |
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320 // |
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321 iScaler->Scale( &iStatus, *iFrameBitmap, *iScaledBitmap, EFalse ); |
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322 SetActive(); |
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323 |
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324 iWait.Start(); // Wait here until scaling is completed |
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325 User::LeaveIfError( iStatus.Int() ); |
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326 |
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327 FLOG(_L("[BTSU]\t CBTSUImageConverter::ScaleImageL() completed")); |
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328 } |
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329 |
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330 // ----------------------------------------------------------------------------- |
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331 // CBTSUImageConverter::Reset |
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332 // ----------------------------------------------------------------------------- |
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333 // |
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334 void CBTSUImageConverter::Reset() |
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335 { |
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336 FLOG(_L("[BTSU]\t CBTSUImageConverter::Reset()")); |
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337 |
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338 delete iDecoder; iDecoder = NULL; |
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339 delete iEncoder; iEncoder = NULL; |
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340 delete iScaler; iScaler = NULL; |
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341 |
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342 delete iFrameImageData; iFrameImageData = NULL; |
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343 delete iFrameBitmap; iFrameBitmap = NULL; |
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344 delete iScaledBitmap; iScaledBitmap = NULL; |
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345 |
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346 FLOG(_L("[BTSU]\t CBTSUImageConverter::Reset() completed")); |
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347 } |
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348 |
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349 // End of File |
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