1 /* |
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2 * Copyright (c) 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: Implementation of Image class. |
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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 "CIHLFileImage.h" |
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21 |
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22 #include "CIHLBitmap.h" |
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23 #include "IHLImplementationIds.h" |
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24 #include "IHLDebugPrint.h" // Debug print |
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25 #include <IHLInterfaceIds.h> |
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26 |
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27 // Private namespace for constants and functions |
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28 namespace |
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29 { |
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30 // Fixed scale factors |
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31 enum TScaleFactors |
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32 { |
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33 EFull = 1, |
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34 EHalf = 2, |
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35 EQuarter = 4, |
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36 EEighth = 8, |
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37 }; |
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38 |
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39 // Panic function |
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40 _LIT( KIHLPanicString, "IHLImage" ); |
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41 void Panic( TInt aPanicCode ) { User::Panic( KIHLPanicString, aPanicCode ); } |
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42 } |
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43 |
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44 // ============================ MEMBER FUNCTIONS =============================== |
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45 // ----------------------------------------------------------------------------- |
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46 // |
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47 // C++ default constructor can NOT contain any code, that |
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48 // might leave. |
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49 // ----------------------------------------------------------------------------- |
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50 CIHLFileImage::CIHLFileImage( TInt aImageIndex ) |
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51 :CActive( CActive::EPriorityStandard ), |
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52 iImageIndex( aImageIndex ) |
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53 { |
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54 CActiveScheduler::Add( this ); |
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55 } |
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56 |
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57 // ----------------------------------------------------------------------------- |
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58 // |
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59 // Two-phased constructor. |
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60 // ----------------------------------------------------------------------------- |
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61 CIHLFileImage* CIHLFileImage::NewL( RFile& aFile, TInt aImageIndex, const TUint32 aOptions ) |
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62 { |
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63 CIHLFileImage* self = new (ELeave) CIHLFileImage( aImageIndex ); |
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64 CleanupStack::PushL( self ); |
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65 self->ConstructL( aFile, aOptions ); |
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66 CleanupStack::Pop(); // self |
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67 return self; |
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68 } |
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69 |
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70 CIHLFileImage* CIHLFileImage::NewL( RFs& aFs, const TDesC8& aDataBuf, |
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71 TInt aImageIndex, const TUint32 aOptions ) |
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72 { |
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73 CIHLFileImage* self = new (ELeave) CIHLFileImage( aImageIndex ); |
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74 CleanupStack::PushL( self ); |
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75 self->ConstructL( aFs, aDataBuf, aOptions ); |
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76 CleanupStack::Pop(); // self |
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77 return self; |
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78 } |
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79 |
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80 // ----------------------------------------------------------------------------- |
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81 // |
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82 // Symbian constructor can leave. |
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83 // ----------------------------------------------------------------------------- |
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84 void CIHLFileImage::ConstructL( RFile& aFile, const TUint32 aOptions ) |
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85 { |
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86 TInt decoderOptions( CImageDecoder::EOptionNoDither | CImageDecoder::EOptionUseFrameSizeInPixels ); |
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87 |
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88 // Open decoder |
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89 IHL_DEBUG1( KIHLDebug1, "IHL - CIHLFileImage - Start create ICL image decoder" ); |
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90 if( aOptions & MIHLFileImage::EOptionNoDRMConsume ) |
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91 { |
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92 iDecoder = CImageDecoder::FileNewL( aFile, ContentAccess::EPeek, |
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93 (CImageDecoder::TOptions)decoderOptions ); |
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94 } |
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95 else |
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96 { |
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97 iDecoder = CImageDecoder::FileNewL( aFile, ContentAccess::EView, |
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98 (CImageDecoder::TOptions)decoderOptions ); |
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99 } |
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100 ConstructCommonL(); |
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101 IHL_DEBUG1( KIHLDebug2, "IHL - CIHLFileImage - ICL image decoder ready!" ); |
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102 } |
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103 |
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104 void CIHLFileImage::ConstructL( RFs& aFs, const TDesC8& aDataBuf, const TUint32 /*aOptions*/ ) |
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105 { |
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106 TInt decoderOptions( CImageDecoder::EOptionNoDither | CImageDecoder::EOptionUseFrameSizeInPixels ); |
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107 |
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108 IHL_DEBUG1( KIHLDebug1, "IHL - CIHLFileImage - Start create buffered ICL image decoder" ); |
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109 |
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110 iDecoder = CImageDecoder::DataNewL( aFs, aDataBuf, (CImageDecoder::TOptions)decoderOptions ); |
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111 ConstructCommonL(); |
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112 |
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113 IHL_DEBUG1( KIHLDebug2, "IHL - CIHLFileImage - Buffered ICL image decoder ready!" ); |
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114 } |
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115 |
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116 |
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117 // ----------------------------------------------------------------------------- |
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118 // CIHLFileImage::ConstructCommonL |
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119 // ----------------------------------------------------------------------------- |
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120 |
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121 void CIHLFileImage::ConstructCommonL() |
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122 { |
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123 // Check frame count and image index |
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124 iImageCount = iDecoder->FrameCount(); |
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125 __ASSERT_ALWAYS( iImageCount > 0, User::Leave( KErrCorrupt ) ); |
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126 |
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127 // Get image types |
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128 iDecoder->ImageType( iImageIndex, iImageType, iImageSubType ); |
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129 |
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130 if( KImageTypeGIFUid == iImageType ) |
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131 { |
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132 iGif = ETrue; |
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133 if( iImageCount > 1 ) |
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134 { |
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135 iAnimation = ETrue; |
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136 iAnimationFrameCount = iImageCount; |
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137 iImageCount = 1; // Handled as one animated image |
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138 } |
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139 } |
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140 __ASSERT_ALWAYS( iImageIndex >= 0 && iImageIndex < iImageCount, User::Leave( KErrArgument ) ); |
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141 |
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142 // cache frame info and set scale sizes |
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143 iFrameInfo = iDecoder->FrameInfo( iImageIndex ); |
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144 if( !iAnimation ) |
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145 { |
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146 // Animation must always be loaded 1:1 |
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147 if( !iGif && |
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148 iFrameInfo.iFlags & TFrameInfo::EFullyScaleable ) |
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149 { |
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150 // Gif cannot be fully scaleable |
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151 iFullyScaleable = ETrue; |
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152 } |
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153 else |
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154 { |
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155 TSize size( iFrameInfo.iOverallSizeInPixels ); |
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156 iLoadSizeArray.AppendL( ScaledLoadSize( size, EEighth ) ); |
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157 iLoadSizeArray.AppendL( ScaledLoadSize( size, EQuarter ) ); |
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158 iLoadSizeArray.AppendL( ScaledLoadSize( size, EHalf ) ); |
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159 } |
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160 } |
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161 } |
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162 |
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163 // ----------------------------------------------------------------------------- |
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164 // Destructor |
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165 // ----------------------------------------------------------------------------- |
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166 CIHLFileImage::~CIHLFileImage() |
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167 { |
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168 Cancel(); |
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169 delete iPrevAnimationFrame; |
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170 delete iSubFrameBitmap; |
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171 delete iDecoder; |
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172 iLoadSizeArray.Reset(); |
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173 } |
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174 |
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175 // ----------------------------------------------------------------------------- |
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176 // CIHLFileImage::Type |
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177 // ----------------------------------------------------------------------------- |
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178 TIHLInterfaceType CIHLFileImage::Type() const |
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179 { |
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180 return TIHLInterfaceType( KIHLInterfaceIdFileImage, |
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181 KIHLImplementationIdFileImage ); |
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182 } |
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183 |
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184 // ----------------------------------------------------------------------------- |
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185 // CIHLFileImage::ImageType |
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186 // ----------------------------------------------------------------------------- |
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187 const TUid& CIHLFileImage::ImageType() const |
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188 { |
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189 return iImageType; |
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190 } |
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191 |
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192 // ----------------------------------------------------------------------------- |
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193 // CIHLFileImage::ImageSubType |
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194 // ----------------------------------------------------------------------------- |
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195 const TUid& CIHLFileImage::ImageSubType() const |
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196 { |
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197 return iImageSubType; |
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198 } |
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199 |
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200 // ----------------------------------------------------------------------------- |
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201 // CIHLFileImage::ImageIndex |
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202 // ----------------------------------------------------------------------------- |
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203 TInt CIHLFileImage::ImageIndex() const |
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204 { |
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205 return iImageIndex; |
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206 } |
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207 |
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208 // ----------------------------------------------------------------------------- |
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209 // CIHLFileImage::ImageCount |
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210 // ----------------------------------------------------------------------------- |
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211 TInt CIHLFileImage::ImageCount() const |
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212 { |
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213 return iImageCount; |
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214 } |
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215 |
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216 // ----------------------------------------------------------------------------- |
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217 // CIHLFileImage::Size |
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218 // ----------------------------------------------------------------------------- |
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219 TSize CIHLFileImage::Size() const |
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220 { |
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221 return iFrameInfo.iOverallSizeInPixels; |
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222 } |
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223 |
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224 // ----------------------------------------------------------------------------- |
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225 // CIHLFileImage::DisplayMode |
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226 // ----------------------------------------------------------------------------- |
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227 TDisplayMode CIHLFileImage::DisplayMode() const |
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228 { |
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229 if( iGif ) |
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230 { |
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231 // We cannot trust iFrameDisplayMode for GIF images. It always return EColor256. |
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232 // This is error because palette sure holds only 256 colors but these colors can |
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233 // be still any RGB values and so for cannot be directly put to 8 bit bitmap (EColor256). |
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234 // To decrypt image correctly and without color dithering, we must use 24 bit (EColor16M) |
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235 // destination bitmap. Note that CFbsBitmap has palette methods but they are |
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236 // not supported currently. |
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237 // Return maximum color mode to ensure best image quality. |
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238 return EColor16MU; |
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239 } |
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240 else if( iFrameInfo.iFrameDisplayMode < EColor16MU || |
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241 iFrameInfo.iFrameDisplayMode == EColor4K ) |
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242 { |
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243 return EColor64K; |
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244 } |
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245 return EColor16MU; |
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246 } |
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247 |
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248 // ----------------------------------------------------------------------------- |
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249 // CIHLFileImage::MaskDisplayMode |
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250 // ----------------------------------------------------------------------------- |
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251 TDisplayMode CIHLFileImage::MaskDisplayMode() const |
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252 { |
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253 if( iFrameInfo.iFlags & TFrameInfo::ETransparencyPossible ) |
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254 { |
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255 if( iFrameInfo.iFlags & TFrameInfo::EAlphaChannel ) |
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256 { |
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257 return EGray256; |
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258 } |
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259 return EGray2; |
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260 } |
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261 return ENone; |
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262 } |
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263 |
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264 // ----------------------------------------------------------------------------- |
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265 // CIHLFileImage::BackgroundColor |
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266 // ----------------------------------------------------------------------------- |
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267 TRgb CIHLFileImage::BackgroundColor() const |
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268 { |
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269 return iFrameInfo.iBackgroundColor; |
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270 } |
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271 |
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272 // ----------------------------------------------------------------------------- |
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273 // CIHLFileImage::CustomLoadSizeArray |
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274 // ----------------------------------------------------------------------------- |
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275 const RArray<TSize>& CIHLFileImage::CustomLoadSizeArray() const |
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276 { |
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277 return iLoadSizeArray; |
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278 } |
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279 |
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280 // ----------------------------------------------------------------------------- |
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281 // CIHLFileImage::CustomLoadSizeArray |
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282 // ----------------------------------------------------------------------------- |
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283 TBool CIHLFileImage::IsFullyScaleable() const |
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284 { |
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285 return iFullyScaleable; |
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286 } |
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287 |
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288 // ----------------------------------------------------------------------------- |
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289 // CIHLFileImage::IsAnimation |
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290 // ----------------------------------------------------------------------------- |
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291 TBool CIHLFileImage::IsAnimation() const |
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292 { |
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293 return iAnimation; |
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294 } |
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295 |
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296 // ----------------------------------------------------------------------------- |
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297 // CIHLFileImage::AnimationFrameCount |
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298 // ----------------------------------------------------------------------------- |
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299 TInt CIHLFileImage::AnimationFrameCount() const |
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300 { |
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301 return iAnimationFrameCount; |
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302 } |
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303 |
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304 // ----------------------------------------------------------------------------- |
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305 // CIHLFileImage::AnimationFrameDelay |
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306 // ----------------------------------------------------------------------------- |
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307 TTimeIntervalMicroSeconds32 CIHLFileImage::AnimationFrameDelay( TInt aAnimationFrameIndex ) const |
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308 { |
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309 __ASSERT_ALWAYS( aAnimationFrameIndex >= 0 && |
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310 aAnimationFrameIndex < iAnimationFrameCount, Panic( KErrArgument ) ); |
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311 |
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312 return I64INT( iDecoder->FrameInfo( aAnimationFrameIndex ).iDelay.Int64() ); |
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313 } |
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314 |
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315 // ------------------------------------------------------------------------------ |
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316 // CIHLFileImage::Load |
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317 // ------------------------------------------------------------------------------ |
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318 |
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319 TInt CIHLFileImage::Load( TRequestStatus& aStatus, MIHLBitmap& aDestination, TInt aFrameIndex ) |
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320 { |
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321 iImageIndex = aFrameIndex; |
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322 return LoadRequest( aStatus, aDestination, iImageIndex ); |
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323 } |
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324 |
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325 // ----------------------------------------------------------------------------- |
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326 // CIHLFileImage::LoadAnimation |
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327 // ----------------------------------------------------------------------------- |
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328 TInt CIHLFileImage::LoadAnimation( TRequestStatus& aStatus, MIHLBitmap& aDestination, |
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329 TInt aAnimationFrameIndex ) |
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330 { |
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331 __ASSERT_ALWAYS( aAnimationFrameIndex >= 0 && |
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332 aAnimationFrameIndex < iAnimationFrameCount, Panic( KErrArgument ) ); |
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333 |
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334 return LoadRequest( aStatus, aDestination, aAnimationFrameIndex ); |
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335 } |
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336 |
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337 // ----------------------------------------------------------------------------- |
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338 // CIHLFileImage::IsBusy |
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339 // ----------------------------------------------------------------------------- |
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340 TBool CIHLFileImage::IsBusy() const |
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341 { |
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342 return ( iImageState != EInactive ); |
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343 } |
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344 |
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345 // ----------------------------------------------------------------------------- |
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346 // CIHLFileImage::CancelLoad |
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347 // ----------------------------------------------------------------------------- |
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348 void CIHLFileImage::CancelLoad() |
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349 { |
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350 Cancel(); |
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351 } |
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352 |
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353 // ----------------------------------------------------------------------------- |
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354 // CIHLFileImage::SetFilter |
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355 // ----------------------------------------------------------------------------- |
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356 void CIHLFileImage::SetFilter( MIHLFilter* /*aFilter*/ ) |
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357 { |
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358 // Not in use |
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359 } |
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360 |
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361 |
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362 // ----------------------------------------------------------------------------- |
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363 // CIHLFileImage::Decoder |
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364 // ----------------------------------------------------------------------------- |
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365 const CImageDecoder& CIHLFileImage::Decoder() const |
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366 { |
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367 return *iDecoder; |
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368 } |
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369 |
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370 // ----------------------------------------------------------------------------- |
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371 // CIHLFileImage::DoCancel |
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372 // ----------------------------------------------------------------------------- |
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373 void CIHLFileImage::DoCancel() |
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374 { |
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375 iDecoder->Cancel(); |
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376 |
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377 // Delete all processed bitmaps |
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378 ErrorCleanup(); |
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379 |
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380 // Complete with cancel |
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381 iImageState = EInactive; |
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382 RequestComplete( KErrCancel ); |
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383 } |
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384 |
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385 // ----------------------------------------------------------------------------- |
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386 // CIHLFileImage::RunL |
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387 // ----------------------------------------------------------------------------- |
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388 void CIHLFileImage::RunL() |
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389 { |
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390 __ASSERT_DEBUG( iDestination, Panic( KErrGeneral ) ); |
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391 User::LeaveIfError( iStatus.Int() ); |
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392 |
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393 switch( iImageState ) |
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394 { |
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395 case EStartLoad: |
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396 { |
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397 // start loading the bitmaps |
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398 StartLoadL(); |
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399 break; |
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400 } |
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401 case ECompleteLoad: |
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402 { |
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403 // complete loading the bitmaps |
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404 CompleteLoadL(); |
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405 break; |
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406 } |
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407 default: |
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408 { |
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409 Panic( KErrTotalLossOfPrecision ); |
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410 } |
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411 } |
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412 } |
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413 |
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414 // ----------------------------------------------------------------------------- |
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415 // CIHLFileImage::RunError |
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416 // ----------------------------------------------------------------------------- |
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417 TInt CIHLFileImage::RunError( TInt aError ) |
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418 { |
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419 IHL_DEBUG2( KIHLDebug, "IHL - CIHLFileImage - Loading error: %d", aError ); |
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420 |
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421 // Delete all processed bitmaps |
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422 ErrorCleanup(); |
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423 |
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424 // Complete with error |
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425 iImageState = EInactive; |
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426 RequestComplete( aError ); |
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427 return KErrNone; |
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428 } |
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429 |
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430 // ----------------------------------------------------------------------------- |
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431 // CIHLFileImage::LoadRequest |
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432 // ----------------------------------------------------------------------------- |
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433 TInt CIHLFileImage::LoadRequest( TRequestStatus& aStatus, |
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434 MIHLBitmap& aDestination, |
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435 TInt aFrameIndex ) |
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436 { |
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437 if( IsBusy() ) |
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438 { |
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439 return KErrNotReady; |
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440 } |
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441 |
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442 if( aFrameIndex < 0 || aFrameIndex >= iDecoder->FrameCount() ) |
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443 { |
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444 return KErrArgument; |
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445 } |
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446 |
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447 const CFbsBitmap& dstBitmap = aDestination.Bitmap(); |
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448 if( !dstBitmap.Handle() ) |
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449 { |
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450 return KErrArgument; |
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451 } |
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452 |
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453 TSize dstSize( dstBitmap.SizeInPixels() ); |
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454 if( dstSize != Size() && |
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455 !iFullyScaleable ) |
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456 { |
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457 TBool sizeFound( EFalse ); |
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458 const TInt count( iLoadSizeArray.Count() ); |
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459 for( TInt i( 0 ); i < count; ++i ) |
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460 { |
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461 if( dstSize == iLoadSizeArray[ i ] ) |
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462 { |
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463 sizeFound = ETrue; |
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464 } |
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465 } |
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466 if( !sizeFound ) |
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467 { |
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468 return KErrArgument; |
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469 } |
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470 } |
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471 |
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472 IHL_DEBUG1( KIHLDebug, "IHL - CIHLFileImage - Frame loading requested" ); |
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473 |
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474 iImageStatus = &aStatus; |
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475 *iImageStatus = KRequestPending; |
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476 |
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477 iDestination = static_cast<CIHLBitmap*>( &aDestination ); //lint !e826 |
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478 iFrameIndex = aFrameIndex; |
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479 |
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480 // Start the active object |
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481 iImageState = EStartLoad; |
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482 SelfComplete(); |
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483 return KErrNone; |
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484 } |
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485 |
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486 // ----------------------------------------------------------------------------- |
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487 // CIHLFileImage::StartLoadL |
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488 // ----------------------------------------------------------------------------- |
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489 void CIHLFileImage::StartLoadL() |
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490 { |
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491 __ASSERT_DEBUG( !iSubFrameBitmap, Panic( KErrGeneral ) ); |
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492 |
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493 IHL_DEBUG1( KIHLDebug, "IHL - CIHLFileImage - Start ICL convert" ); |
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494 |
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495 if( iAnimation ) |
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496 { |
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497 // Start animation from first frame by default |
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498 iSubFrameIndex = 0; |
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499 |
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500 // Check is animation can be continued on top of destination bitmap |
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501 if( iDestination->IsCreated() && |
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502 iDestination->EditorPtr() == this && |
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503 iDestination->EditorValue() < iFrameIndex ) |
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504 { |
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505 // Editor value means frame index |
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506 iSubFrameIndex = iDestination->EditorValue() + 1; |
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507 } |
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508 |
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509 StartLoadSubFrameL( iSubFrameIndex, ETrue ); |
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510 } |
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511 else if( iGif ) |
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512 { |
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513 StartLoadSubFrameL( iFrameIndex, EFalse ); |
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514 } |
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515 else |
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516 { |
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517 // Frame fills the whole image -> normal load |
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518 StartLoadNormalFrame( iFrameIndex ); |
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519 } |
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520 |
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521 iImageState = ECompleteLoad; |
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522 SetActive(); |
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523 } |
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524 |
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525 // ----------------------------------------------------------------------------- |
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526 // CIHLFileImage::StartLoadNormalFrame |
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527 // ----------------------------------------------------------------------------- |
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528 void CIHLFileImage::StartLoadNormalFrame( TInt aFrameIndex ) |
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529 { |
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530 CFbsBitmap& dstBitmap = iDestination->BitmapModifyable(); |
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531 CFbsBitmap& dstMask = iDestination->MaskModifyable(); |
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532 |
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533 if( MaskDisplayMode() && dstMask.Handle() ) |
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534 { |
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535 iDecoder->Convert( &iStatus, dstBitmap, dstMask, aFrameIndex ); |
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536 } |
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537 else |
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538 { |
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539 dstMask.Reset(); |
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540 iDecoder->Convert( &iStatus, dstBitmap, aFrameIndex ); |
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541 } |
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542 } |
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543 |
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544 // ----------------------------------------------------------------------------- |
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545 // CIHLFileImage::StartLoadSubFrameL |
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546 // ----------------------------------------------------------------------------- |
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547 void CIHLFileImage::StartLoadSubFrameL( TInt aFrameIndex, TBool aAnimation ) |
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548 { |
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549 __ASSERT_DEBUG( !iSubFrameBitmap, Panic( KErrGeneral ) ); |
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550 |
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551 // Create animation bitmap |
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552 iSubFrameBitmap = CIHLBitmap::NewL(); |
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553 CFbsBitmap& subBitmap = iSubFrameBitmap->BitmapModifyable(); |
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554 CFbsBitmap& subMask = iSubFrameBitmap->MaskModifyable(); |
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555 |
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556 TSize dstSize( iDestination->Bitmap().SizeInPixels() ); |
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557 TFrameInfo subFrameInfo( iDecoder->FrameInfo( aFrameIndex ) ); |
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558 |
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559 // Check is client uses downscaling (not used in animations) |
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560 TSize loadSize( subFrameInfo.iFrameSizeInPixels ); |
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561 iSubFrameScaleFactor = EFull; |
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562 if( !aAnimation && |
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563 dstSize != iFrameInfo.iOverallSizeInPixels ) |
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564 { |
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565 if( dstSize == ScaledLoadSize( iFrameInfo.iOverallSizeInPixels, EHalf ) ) |
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566 { |
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567 iSubFrameScaleFactor = EHalf; |
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568 loadSize = ScaledLoadSize( loadSize, EHalf ); |
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569 } |
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570 else if( dstSize == ScaledLoadSize( iFrameInfo.iOverallSizeInPixels, EQuarter ) ) |
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571 { |
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572 iSubFrameScaleFactor = EQuarter; |
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573 loadSize = ScaledLoadSize( loadSize, EQuarter ); |
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574 } |
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575 else if( dstSize == ScaledLoadSize( iFrameInfo.iOverallSizeInPixels, EEighth ) ) |
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576 { |
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577 iSubFrameScaleFactor = EEighth; |
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578 loadSize = ScaledLoadSize( loadSize, EEighth ); |
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579 } |
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580 } |
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581 User::LeaveIfError( subBitmap.Create( loadSize, EColor16M ) ); |
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582 |
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583 if( subFrameInfo.iFlags & TFrameInfo::ETransparencyPossible ) |
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584 { |
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585 User::LeaveIfError( subMask.Create( loadSize, |
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586 subFrameInfo.iFlags & TFrameInfo::EAlphaChannel ? EGray256 : EGray2 ) ); |
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587 iDecoder->Convert( &iStatus, subBitmap, subMask, aFrameIndex ); |
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588 } |
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589 else |
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590 { |
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591 iDecoder->Convert( &iStatus, subBitmap, aFrameIndex ); |
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592 } |
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593 } |
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594 |
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595 // ----------------------------------------------------------------------------- |
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596 // CIHLFileImage::CompleteLoadL |
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597 // ----------------------------------------------------------------------------- |
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598 void CIHLFileImage::CompleteLoadL() |
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599 { |
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600 IHL_DEBUG1( KIHLDebug1, "IHL - CIHLFileImage - ICL convert complete!" ); |
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601 |
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602 if( iSubFrameBitmap ) |
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603 { |
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604 IHL_DEBUG1( KIHLDebug2, "IHL - CIHLFileImage - Start build animation frame" ); |
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605 |
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606 // Copy animation bitmap to destination |
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607 BuildSubFrameL(); |
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608 delete iSubFrameBitmap; |
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609 iSubFrameBitmap = NULL; |
|
610 |
|
611 IHL_DEBUG1( KIHLDebug3, "IHL - CIHLFileImage - Animation frame complete!" ); |
|
612 |
|
613 // Save source info destination |
|
614 iDestination->SetEditorPtr( this ); |
|
615 iDestination->SetEditorValue( iSubFrameIndex ); |
|
616 |
|
617 if( iSubFrameIndex < iFrameIndex ) |
|
618 { |
|
619 // re-start the active object and load next subframe |
|
620 iSubFrameIndex++; |
|
621 iImageState = EStartLoad; |
|
622 SelfComplete(); |
|
623 } |
|
624 else |
|
625 { |
|
626 // Animation/subframe image ready |
|
627 iDestination = NULL; |
|
628 iImageState = EInactive; |
|
629 RequestComplete( KErrNone ); |
|
630 } |
|
631 } |
|
632 else |
|
633 { |
|
634 // Save source info destination |
|
635 iDestination->SetEditorPtr( this ); |
|
636 iDestination->SetEditorValue( iFrameIndex ); |
|
637 |
|
638 // Normal image ready |
|
639 iDestination = NULL; |
|
640 iImageState = EInactive; |
|
641 RequestComplete( KErrNone ); |
|
642 } |
|
643 |
|
644 IHL_DEBUG1( KIHLDebug4, "IHL - CIHLFileImage - Frame loading request complete!" ); |
|
645 } |
|
646 |
|
647 // ----------------------------------------------------------------------------- |
|
648 // CIHLFileImage::BuildSubFrameL |
|
649 // ----------------------------------------------------------------------------- |
|
650 void CIHLFileImage::BuildSubFrameL() |
|
651 { |
|
652 __ASSERT_DEBUG( iSubFrameBitmap, Panic( KErrGeneral ) ); |
|
653 const CFbsBitmap& subBitmap = iSubFrameBitmap->Bitmap(); |
|
654 const CFbsBitmap& subMask = iSubFrameBitmap->Mask(); |
|
655 __ASSERT_DEBUG( subBitmap.Handle(), Panic( KErrGeneral ) ); |
|
656 |
|
657 if( !iAnimation || |
|
658 ( iAnimation && iSubFrameIndex == 0 ) ) |
|
659 { |
|
660 TFrameInfo frameInfo( iDecoder->FrameInfo( iSubFrameIndex ) ); |
|
661 if( iDestination->Bitmap().SizeInPixels() == subBitmap.SizeInPixels() && |
|
662 frameInfo.iFrameCoordsInPixels.iTl == TPoint(0,0) ) |
|
663 { |
|
664 // Sub frame is same size as destination image and has no offset |
|
665 // -> put directly into destination |
|
666 User::LeaveIfError( iDestination->Copy( subBitmap, subMask, ETrue ) ); |
|
667 } |
|
668 else |
|
669 { |
|
670 // Sub frame size differs from destination image size |
|
671 CFbsBitmap& desBitmap = iDestination->BitmapModifyable(); |
|
672 CFbsBitmap& desMask = iDestination->MaskModifyable(); |
|
673 |
|
674 // Other frames must be build on top of previous frames |
|
675 __ASSERT_DEBUG( desBitmap.Handle(), Panic( KErrGeneral ) ); |
|
676 |
|
677 // Fill destination using background color |
|
678 FillL( desBitmap, frameInfo.iBackgroundColor ); |
|
679 |
|
680 // Copy loaded frame on top of background |
|
681 CFbsBitGc* bitGc; |
|
682 CFbsBitmapDevice* bitDevice = CFbsBitmapDevice::NewL( &desBitmap ); |
|
683 CleanupStack::PushL( bitDevice ); |
|
684 User::LeaveIfError( bitDevice->CreateContext( bitGc ) ); |
|
685 CleanupStack::PushL( bitGc ); |
|
686 |
|
687 TPoint framePos( ScaledFramePosition( |
|
688 frameInfo.iFrameCoordsInPixels.iTl, iSubFrameScaleFactor ) ); |
|
689 if( subMask.Handle() ) |
|
690 { |
|
691 bitGc->BitBltMasked( framePos, &subBitmap, |
|
692 subBitmap.SizeInPixels(), &subMask, EFalse ); |
|
693 } |
|
694 else |
|
695 { |
|
696 bitGc->BitBlt( framePos, &subBitmap, subBitmap.SizeInPixels() ); |
|
697 } |
|
698 CleanupStack::PopAndDestroy( 2, bitDevice ); // bitGc, bitDevice |
|
699 |
|
700 if( desMask.Handle() ) |
|
701 { |
|
702 // Fill mask to transparent |
|
703 FillL( desMask, KRgbBlack ); |
|
704 |
|
705 // Fill bg mask with transparency (=black) |
|
706 CFbsBitmapDevice* maskDev = CFbsBitmapDevice::NewL( &desMask ); |
|
707 CleanupStack::PushL( maskDev ); |
|
708 CFbsBitGc* maskGc; |
|
709 User::LeaveIfError( maskDev->CreateContext( maskGc ) ); |
|
710 CleanupStack::PushL( maskGc ); |
|
711 |
|
712 // Combine bg mask with first frame mask |
|
713 maskGc->BitBlt( framePos, &subMask, subMask.SizeInPixels() ); |
|
714 |
|
715 CleanupStack::PopAndDestroy( 2, maskDev ); // maskGc, maskDev |
|
716 } |
|
717 } |
|
718 |
|
719 // Create "previous frame" if animation |
|
720 if( iAnimation ) |
|
721 { |
|
722 if( !iPrevAnimationFrame ) |
|
723 { |
|
724 iPrevAnimationFrame = CIHLBitmap::NewL(); |
|
725 } |
|
726 CFbsBitmap& desBitmap = iDestination->BitmapModifyable(); |
|
727 CFbsBitmap& desMask = iDestination->MaskModifyable(); |
|
728 if( iSubFrameBitmap->HasMask() ) |
|
729 { |
|
730 User::LeaveIfError( |
|
731 iPrevAnimationFrame->Create( desBitmap.SizeInPixels(), |
|
732 desBitmap.DisplayMode(), desMask.DisplayMode() ) ); |
|
733 FillL( iPrevAnimationFrame->BitmapModifyable(), frameInfo.iBackgroundColor ); |
|
734 FillL( iPrevAnimationFrame->MaskModifyable(), KRgbBlack ); |
|
735 } |
|
736 else |
|
737 { |
|
738 User::LeaveIfError( |
|
739 iPrevAnimationFrame->Create( desBitmap.SizeInPixels(), |
|
740 desBitmap.DisplayMode() ) ); |
|
741 FillL( iPrevAnimationFrame->BitmapModifyable(), frameInfo.iBackgroundColor ); |
|
742 } |
|
743 } |
|
744 } |
|
745 else // same as iAnimation && iSubFrameIndex > 0 |
|
746 { |
|
747 TFrameInfo prevFrameInfo( iDecoder->FrameInfo( iSubFrameIndex - 1 ) ); |
|
748 if ( prevFrameInfo.iFlags & TFrameInfo::ERestoreToPrevious ) |
|
749 { |
|
750 // Restore destination to "previous frame" |
|
751 User::LeaveIfError( iDestination->Copy( *iPrevAnimationFrame, EFalse ) ); |
|
752 } |
|
753 |
|
754 CFbsBitmap& prevBitmap = iDestination->BitmapModifyable(); |
|
755 CFbsBitmap& prevMask = iDestination->MaskModifyable(); |
|
756 |
|
757 // Other frames must be build on top of previous frames |
|
758 __ASSERT_DEBUG( prevBitmap.Handle(), Panic( KErrGeneral ) ); |
|
759 |
|
760 // Restore area in destination bitmap if needed |
|
761 TRect restoreRect; |
|
762 TBool restoreToBackground( EFalse ); |
|
763 if( prevFrameInfo.iFlags & TFrameInfo::ERestoreToBackground ) |
|
764 { |
|
765 restoreToBackground = ETrue; |
|
766 restoreRect = prevFrameInfo.iFrameCoordsInPixels; |
|
767 FillRectL( prevBitmap, restoreRect, prevFrameInfo.iBackgroundColor ); |
|
768 |
|
769 // Cache new "previous frame" |
|
770 User::LeaveIfError( iPrevAnimationFrame->Copy( *iDestination, EFalse ) ); |
|
771 } |
|
772 else if( prevFrameInfo.iFlags & TFrameInfo::ELeaveInPlace ) |
|
773 { |
|
774 // Cache new "previous frame" |
|
775 User::LeaveIfError( iPrevAnimationFrame->Copy( *iDestination, EFalse ) ); |
|
776 } |
|
777 |
|
778 // Copy animation frame to destination bitmap |
|
779 TFrameInfo frameInfo( iDecoder->FrameInfo( iSubFrameIndex ) ); |
|
780 CFbsBitGc* bitGc; |
|
781 CFbsBitmapDevice* bitDevice = CFbsBitmapDevice::NewL( &prevBitmap ); |
|
782 CleanupStack::PushL( bitDevice ); |
|
783 User::LeaveIfError( bitDevice->CreateContext( bitGc ) ); |
|
784 CleanupStack::PushL( bitGc ); |
|
785 if( subMask.Handle() ) |
|
786 { |
|
787 bitGc->BitBltMasked( frameInfo.iFrameCoordsInPixels.iTl, &subBitmap, |
|
788 subBitmap.SizeInPixels(), &subMask, EFalse ); |
|
789 } |
|
790 else |
|
791 { |
|
792 bitGc->BitBlt( frameInfo.iFrameCoordsInPixels.iTl, &subBitmap, |
|
793 subBitmap.SizeInPixels() ); |
|
794 } |
|
795 CleanupStack::PopAndDestroy( 2 ); // bitGc, bitDevice |
|
796 |
|
797 // Combine masks if any |
|
798 if( prevMask.Handle() && subMask.Handle() ) |
|
799 { |
|
800 ////////////////////////////////////////////////////////////////////////// |
|
801 // ALTERNATIVE WAY TO COMBINE MASKS! |
|
802 // Current solution doesn't combine soft masks. |
|
803 // Following code could be used if soft masks are enabled in animations. |
|
804 // Do not delete! |
|
805 ////////////////////////////////////////////////////////////////////////// |
|
806 /* |
|
807 if( restoreToBackground ) |
|
808 { |
|
809 bitDevice = CFbsBitmapDevice::NewL( &prevMask ); |
|
810 CleanupStack::PushL( bitDevice ); |
|
811 User::LeaveIfError( bitDevice->CreateContext( bitGc ) ); |
|
812 CleanupStack::PushL( bitGc ); |
|
813 |
|
814 bitGc->SetBrushColor( KRgbBlack ); |
|
815 bitGc->SetBrushStyle( CGraphicsContext::ESolidBrush ); |
|
816 bitGc->DrawRect( restoreRect ); |
|
817 bitGc->SetBrushStyle( CGraphicsContext::ENullBrush ); |
|
818 |
|
819 CleanupStack::PopAndDestroy( 2 ); // bitDevice, bitGc |
|
820 } |
|
821 |
|
822 prevMask.LockHeap(); |
|
823 |
|
824 TUint8* srcAddress = reinterpret_cast<TUint8*>( animMask.DataAddress() ); |
|
825 TSize srcSize( animMask.SizeInPixels() ); |
|
826 TPoint srcPos( 0,0 ); |
|
827 TInt srcScanLen8 = CFbsBitmap::ScanLineLength( srcSize.iWidth, EGray256 ); |
|
828 |
|
829 TUint8* dstAddress = reinterpret_cast<TUint8*>( prevMask.DataAddress() ); |
|
830 TSize dstSize( prevMask.SizeInPixels() ); |
|
831 TPoint dstPos( frameInfo.iFrameCoordsInPixels.iTl ); |
|
832 TPoint dstEndPos( frameInfo.iFrameCoordsInPixels.iBr ); |
|
833 TInt dstScanLen8 = CFbsBitmap::ScanLineLength( dstSize.iWidth, EGray256 ); |
|
834 |
|
835 while( dstPos.iY < dstEndPos.iY ) |
|
836 { |
|
837 TUint8* srcAddressCur = srcAddress + ( srcPos.iY * srcScanLen8 ); |
|
838 TUint8* dstAddressCur = dstAddress + ( dstPos.iY * dstScanLen8 ); |
|
839 while( dstPos.iX < dstEndPos.iX ) |
|
840 { |
|
841 TUint8& srcPixel = srcAddressCur[ srcPos.iX++ ]; |
|
842 TUint8& dstPixel = dstAddressCur[ dstPos.iX++ ]; |
|
843 if( srcPixel > dstPixel ) |
|
844 { |
|
845 dstPixel = srcPixel; |
|
846 } |
|
847 } |
|
848 |
|
849 srcPos.iX = 0; |
|
850 srcPos.iY++; |
|
851 dstPos.iX = frameInfo.iFrameCoordsInPixels.iTl.iX; |
|
852 dstPos.iY++; |
|
853 } |
|
854 |
|
855 animMask.UnlockHeap(); |
|
856 */ |
|
857 |
|
858 if( restoreToBackground ) |
|
859 { |
|
860 FillRectL( prevMask, restoreRect, KRgbBlack ); |
|
861 } |
|
862 |
|
863 bitDevice = CFbsBitmapDevice::NewL( &prevMask ); |
|
864 CleanupStack::PushL( bitDevice ); |
|
865 User::LeaveIfError( bitDevice->CreateContext( bitGc ) ); |
|
866 CleanupStack::PushL( bitGc ); |
|
867 |
|
868 CFbsBitmap* tmpMask = new(ELeave) CFbsBitmap; |
|
869 CleanupStack::PushL( tmpMask ); |
|
870 User::LeaveIfError( tmpMask->Create( prevMask.SizeInPixels(), prevMask.DisplayMode() ) ); |
|
871 CFbsBitmapDevice* tmpMaskDev = CFbsBitmapDevice::NewL( tmpMask ); |
|
872 CleanupStack::PushL( tmpMaskDev ); |
|
873 CFbsBitGc* tmpMaskGc; |
|
874 User::LeaveIfError( tmpMaskDev->CreateContext( tmpMaskGc ) ); |
|
875 CleanupStack::PushL( tmpMaskGc ); |
|
876 |
|
877 tmpMaskGc->BitBlt( TPoint( 0, 0 ), &prevMask, frameInfo.iFrameCoordsInPixels ); |
|
878 |
|
879 bitGc->BitBltMasked( frameInfo.iFrameCoordsInPixels.iTl, &subMask, |
|
880 subMask.SizeInPixels(), tmpMask, ETrue ); |
|
881 |
|
882 CleanupStack::PopAndDestroy( 5 ); // tmpMaskGc,tmpMaskDev,tmpMask,bitGc,bitDevice |
|
883 } |
|
884 else |
|
885 { |
|
886 prevMask.Reset(); // Mask not valid anymore -> reset |
|
887 } |
|
888 } |
|
889 } |
|
890 |
|
891 // ----------------------------------------------------------------------------- |
|
892 // CIHLFileImage::FillL |
|
893 // ----------------------------------------------------------------------------- |
|
894 void CIHLFileImage::FillL( CFbsBitmap& aBitmap, const TRgb& aColor ) |
|
895 { |
|
896 CFbsBitGc* bitGc; |
|
897 CFbsBitmapDevice* bitDevice = CFbsBitmapDevice::NewL( &aBitmap ); |
|
898 CleanupStack::PushL( bitDevice ); |
|
899 User::LeaveIfError( bitDevice->CreateContext( bitGc ) ); |
|
900 CleanupStack::PushL( bitGc ); |
|
901 |
|
902 bitGc->SetBrushColor( aColor ); |
|
903 bitGc->SetPenColor( aColor ); |
|
904 bitGc->SetBrushStyle( CGraphicsContext::ESolidBrush ); |
|
905 bitGc->Clear(); |
|
906 bitGc->SetBrushStyle( CGraphicsContext::ENullBrush ); |
|
907 |
|
908 CleanupStack::PopAndDestroy( 2 ); // bitGc, bitDevice |
|
909 } |
|
910 |
|
911 // ----------------------------------------------------------------------------- |
|
912 // CIHLFileImage::FillRectL |
|
913 // ----------------------------------------------------------------------------- |
|
914 void CIHLFileImage::FillRectL( CFbsBitmap& aBitmap, const TRect& aRect, |
|
915 const TRgb& aColor ) |
|
916 { |
|
917 CFbsBitGc* bitGc; |
|
918 CFbsBitmapDevice* bitDevice = CFbsBitmapDevice::NewL( &aBitmap ); |
|
919 CleanupStack::PushL( bitDevice ); |
|
920 User::LeaveIfError( bitDevice->CreateContext( bitGc ) ); |
|
921 CleanupStack::PushL( bitGc ); |
|
922 |
|
923 bitGc->SetBrushColor( aColor ); |
|
924 bitGc->SetPenColor( aColor ); |
|
925 bitGc->SetBrushStyle( CGraphicsContext::ESolidBrush ); |
|
926 bitGc->DrawRect( aRect ); |
|
927 bitGc->SetBrushStyle( CGraphicsContext::ENullBrush ); |
|
928 |
|
929 CleanupStack::PopAndDestroy( 2 ); // bitGc, bitDevice |
|
930 } |
|
931 |
|
932 // ----------------------------------------------------------------------------- |
|
933 // CIHLFileImage::ErrorCleanup |
|
934 // ----------------------------------------------------------------------------- |
|
935 void CIHLFileImage::ErrorCleanup() |
|
936 { |
|
937 if( iSubFrameBitmap ) |
|
938 { |
|
939 delete iSubFrameBitmap; |
|
940 iSubFrameBitmap = NULL; |
|
941 } |
|
942 |
|
943 if( iDestination ) |
|
944 { |
|
945 iDestination = NULL; |
|
946 } |
|
947 } |
|
948 |
|
949 // ----------------------------------------------------------------------------- |
|
950 // CIHLFileImage::SelfComplete |
|
951 // ----------------------------------------------------------------------------- |
|
952 void CIHLFileImage::SelfComplete() |
|
953 { |
|
954 SetActive(); |
|
955 iStatus = KRequestPending; |
|
956 TRequestStatus* status = &iStatus; |
|
957 User::RequestComplete( status, KErrNone ); |
|
958 } |
|
959 |
|
960 // ----------------------------------------------------------------------------- |
|
961 // CIHLFileImage::RequestComplete |
|
962 // ----------------------------------------------------------------------------- |
|
963 void CIHLFileImage::RequestComplete( TInt aReason ) |
|
964 { |
|
965 ASSERT( iImageStatus ); |
|
966 User::RequestComplete( iImageStatus, aReason ); |
|
967 } |
|
968 |
|
969 // ----------------------------------------------------------------------------- |
|
970 // CIHLFileImage::ScaledLoadSize |
|
971 // ----------------------------------------------------------------------------- |
|
972 TSize CIHLFileImage::ScaledLoadSize( const TSize& aOriginalSize, TInt aScaleFactor ) |
|
973 { |
|
974 // Divide original size with scalefactor |
|
975 // Round always up if result is not integer |
|
976 return ( aScaleFactor == EFull ) ? aOriginalSize : |
|
977 TSize( aOriginalSize.iWidth / aScaleFactor + ( aOriginalSize.iWidth % aScaleFactor ? 1 : 0 ), |
|
978 aOriginalSize.iHeight / aScaleFactor + ( aOriginalSize.iHeight % aScaleFactor ? 1 : 0 ) ); |
|
979 } |
|
980 |
|
981 // ----------------------------------------------------------------------------- |
|
982 // CIHLFileImage::ScaledLoadSize |
|
983 // ----------------------------------------------------------------------------- |
|
984 TPoint CIHLFileImage::ScaledFramePosition( const TPoint& aOriginalPos, TInt aScaleFactor ) |
|
985 { |
|
986 // Divide original position with scalefactor |
|
987 // Round always up if result is not integer |
|
988 return ( aScaleFactor == EFull ) ? aOriginalPos : |
|
989 TPoint( aOriginalPos.iX / aScaleFactor + ( aOriginalPos.iX % aScaleFactor ? 1 : 0 ), |
|
990 aOriginalPos.iY / aScaleFactor + ( aOriginalPos.iY % aScaleFactor ? 1 : 0 ) ); |
|
991 } |
|
992 // End of File |
|