1 /* |
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2 * Copyright (c) 2008-2008 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: Internal image converter implementation |
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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 <aknlayoutfont.h> |
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20 #include <aknutils.h> |
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21 #include <bitmaptransforms.h> |
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22 #include <coemain.h> |
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23 #include <gulicon.h> |
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24 #include <ihlbitmaputil.h> |
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25 #include <imageconversion.h> |
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26 #include <svgengineinterfaceimpl.h> |
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27 |
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28 |
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29 #include "irimageconverterimpl.h" |
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30 #include "irimageconverterobserver.h" |
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31 #include "irdebug.h" |
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32 // Image decoder options. |
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33 const CImageDecoder::TOptions KIRImageDecoderOptions = CImageDecoder::EOptionAlwaysThread; |
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34 // Bitmap scaler quality. |
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35 const CBitmapScaler::TQualityAlgorithm KIRBitmapScalerQualityAlgorithm = |
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36 CBitmapScaler::EMaximumQuality; |
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37 const TInt KFour=4; |
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38 // --------------------------------------------------------------------------- |
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39 // @see CIRImageConverter::NewL() |
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40 // --------------------------------------------------------------------------- |
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41 // |
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42 CIRImageConverterImpl* CIRImageConverterImpl::NewL() |
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43 { |
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44 IRLOG_DEBUG( "CIRImageConverterImpl::NewL - Entering" ); |
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45 CIRImageConverterImpl* self = new ( ELeave ) CIRImageConverterImpl; |
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46 CleanupStack::PushL( self ); |
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47 self->ConstructL(); |
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48 CleanupStack::Pop( self ); |
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49 return self; |
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50 } |
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51 |
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52 // --------------------------------------------------------------------------- |
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53 // Constructor. |
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54 // --------------------------------------------------------------------------- |
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55 // |
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56 CIRImageConverterImpl::CIRImageConverterImpl() |
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57 : CActive( CActive::EPriorityStandard ), |
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58 iEnableAnimations( ETrue ), |
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59 iMaintainAspectRatio( ETrue ) |
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60 { |
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61 CActiveScheduler::Add( this ); |
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62 } |
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63 |
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64 // --------------------------------------------------------------------------- |
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65 // Second-phase constructor. |
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66 // --------------------------------------------------------------------------- |
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67 // |
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68 void CIRImageConverterImpl::ConstructL() |
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69 { |
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70 IRLOG_DEBUG( "CIRImageConverterImpl::ConstructL - entering" ); |
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71 iNotifyObserverCallBack = new ( ELeave ) CAsyncCallBack( |
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72 TCallBack( StaticNotifyObserverCallBack, this ), CActive::EPriorityHigh ); |
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73 } |
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74 |
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75 // --------------------------------------------------------------------------- |
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76 // @see CIRImageConverter::~CIRImageConverter() |
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77 // --------------------------------------------------------------------------- |
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78 // |
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79 CIRImageConverterImpl::~CIRImageConverterImpl() |
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80 { |
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81 Cancel(); |
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82 |
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83 iFrames.ResetAndDestroy(); |
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84 iFrames.Close(); |
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85 |
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86 delete iDecoder; |
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87 delete iScaler; |
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88 delete iSvgEngine; |
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89 delete iProcessedBitmap; |
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90 delete iProcessedMask; |
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91 delete iBitmap; |
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92 delete iMask; |
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93 delete iLastFrameBitmap; |
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94 delete iLastFrameMask; |
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95 delete iNotifyObserverCallBack; |
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96 delete iFrameTimer; |
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97 } |
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98 |
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99 // --------------------------------------------------------------------------- |
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100 // @see CIRImageConverter::SetDataL( const TDesC8& aData ) |
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101 // --------------------------------------------------------------------------- |
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102 // |
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103 void CIRImageConverterImpl::SetDataL( const TDesC8& aData ) |
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104 { |
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105 IRRDEBUG2( "CIRImageConverterImpl::SetDataL - Entering", KNullDesC ); |
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106 Cleanup( ETrue ); |
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107 iData.Set( aData ); |
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108 CreateDataHandlerL(); |
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109 IRRDEBUG2( "CIRImageConverterImpl::SetDataL - Exiting", KNullDesC ); |
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110 } |
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111 |
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112 // --------------------------------------------------------------------------- |
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113 // @see CIRImageConverter::SetObserver( MIRImageConverterObserver* aObserver ) |
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114 // --------------------------------------------------------------------------- |
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115 // |
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116 void CIRImageConverterImpl::SetObserver( MIRImageConverterObserver* aObserver ) |
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117 { |
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118 iObserver = aObserver; |
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119 } |
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120 |
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121 // --------------------------------------------------------------------------- |
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122 // @see CIRImageConverter::EnableAnimations( TBool aEnable ) |
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123 // --------------------------------------------------------------------------- |
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124 // |
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125 void CIRImageConverterImpl::EnableAnimations( TBool aEnable ) |
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126 { |
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127 __ASSERT_DEBUG( iState == EIRStateIdle, User::Invariant() ); |
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128 iEnableAnimations = aEnable; |
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129 } |
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130 |
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131 // --------------------------------------------------------------------------- |
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132 // @see CIRImageConverter::IsAnimated() const |
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133 // --------------------------------------------------------------------------- |
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134 // |
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135 TBool CIRImageConverterImpl::IsAnimated() const |
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136 { |
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137 __ASSERT_DEBUG( iState != EIRStateIdle, User::Invariant() ); |
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138 return iIsAnimated; |
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139 } |
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140 |
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141 // --------------------------------------------------------------------------- |
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142 // @see CIRImageConverter::MaintainAspectRatio( TBool aMaintain ) |
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143 // --------------------------------------------------------------------------- |
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144 // |
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145 void CIRImageConverterImpl::MaintainAspectRatio( TBool aMaintain ) |
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146 { |
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147 __ASSERT_DEBUG( iState == EIRStateIdle, User::Invariant() ); |
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148 iMaintainAspectRatio = aMaintain; |
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149 } |
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150 |
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151 // --------------------------------------------------------------------------- |
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152 // @see CIRImageConverter::StartL( const TSize& aTarget, TInt aId ) |
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153 // --------------------------------------------------------------------------- |
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154 // |
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155 void CIRImageConverterImpl::StartL( const TSize& aTarget, TInt aId ) |
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156 { |
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157 IRRDEBUG2( "CIRImageConverterImpl::StartL - Entering", KNullDesC ); |
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158 if ( iState != EIRStateBitmapDecoderInitialized && iState != EIRStateSvgEngineInitialized ) |
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159 { |
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160 if ( iState == EIRStateIdle ) |
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161 { |
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162 IRRDEBUG2("CIRImageConverterImpl::StartL, leave with KErrNotReady", KNullDesC); |
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163 User::Leave( KErrNotReady ); |
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164 } |
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165 else |
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166 { |
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167 IRRDEBUG2("CIRImageConverterImpl::StartL, leave with KErrInUse", KNullDesC); |
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168 User::Leave( KErrInUse ); |
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169 } |
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170 } |
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171 iTargetSize = aTarget; |
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172 iId = aId; |
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173 if ( iState == EIRStateSvgEngineInitialized ) |
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174 { |
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175 // The SVG-T engine has been initialized with dummy 0x0 bitmaps, so updating those must be handled here. |
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176 IRRDEBUG2( "CIRImageConverterImpl::StartL - if begin", KNullDesC ); |
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177 CreateBitmapL( iTargetSize, iBitmap, iMask ); |
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178 iSvgEngine->SetFrameBuffer( iBitmap ); |
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179 iState = EIRStateConvertingSvg; |
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180 iSvgEngine->Start(); |
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181 IRRDEBUG2( "CIRImageConverterImpl::StartL - if end", KNullDesC ); |
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182 } |
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183 else |
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184 { |
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185 IRRDEBUG2( "CIRImageConverterImpl::StartL - else begin", KNullDesC ); |
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186 iState = EIRStateConvertingBitmap; |
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187 IRRDEBUG2( "CIRImageConverterImpl::StartL, iDecorder = %d", iDecoder); |
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188 iDecoder->Convert( &iStatus, *iBitmap, *iMask ); |
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189 IRRDEBUG2( "CIRImageConverterImpl::StartL - else-exit call setactive", KNullDesC ); |
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190 SetActive(); |
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191 } |
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192 IRRDEBUG2( "CIRImageConverterImpl::StartL - Exiting", KNullDesC ); |
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193 } |
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194 |
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195 // --------------------------------------------------------------------------- |
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196 // @see CIRImageConverter::Stop() |
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197 // --------------------------------------------------------------------------- |
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198 // |
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199 void CIRImageConverterImpl::Stop() |
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200 { |
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201 IRRDEBUG2( "CIRImageConverterImpl::Stop - Entering", KNullDesC ); |
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202 Cancel(); |
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203 if ( iSvgEngine ) |
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204 { |
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205 iSvgEngine->Stop(); |
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206 } |
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207 TIRImageConverterState state = iState; |
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208 Cleanup(); |
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209 if ( state != EIRStateIdle && state != EIRStateBitmapDecoderInitialized && |
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210 state != EIRStateSvgEngineInitialized ) |
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211 { |
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212 NotifyObserver( KErrCancel ); |
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213 } |
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214 IRRDEBUG2( "CIRImageConverterImpl::Stop - Exiting",KNullDesC ); |
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215 } |
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216 |
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217 // --------------------------------------------------------------------------- |
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218 // @see CIRImageConverter::Bitmap() const |
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219 // --------------------------------------------------------------------------- |
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220 // |
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221 const CFbsBitmap* CIRImageConverterImpl::Bitmap() const |
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222 { |
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223 IRLOG_DEBUG( "CIRImageConverterImpl::Bitmap - Entering" ); |
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224 return iProcessedBitmap; |
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225 } |
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226 |
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227 // --------------------------------------------------------------------------- |
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228 // @see CIRImageConverter::Mask() const |
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229 // --------------------------------------------------------------------------- |
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230 // |
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231 const CFbsBitmap* CIRImageConverterImpl::Mask() const |
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232 { |
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233 IRLOG_DEBUG( "CIRImageConverterImpl::Mask - Entering" ); |
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234 return iProcessedMask; |
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235 } |
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236 |
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237 // --------------------------------------------------------------------------- |
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238 // @see CIRImageConverter::TransferBitmapOwnership( CFbsBitmap*& aBitmap, CFbsBitmap*& aMask ) |
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239 // --------------------------------------------------------------------------- |
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240 // |
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241 void CIRImageConverterImpl::TransferBitmapOwnership( CFbsBitmap*& aBitmap, CFbsBitmap*& aMask ) |
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242 { |
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243 aBitmap = iProcessedBitmap; |
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244 iProcessedBitmap = NULL; |
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245 aMask = iProcessedMask; |
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246 iProcessedMask = NULL; |
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247 } |
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248 |
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249 // --------------------------------------------------------------------------- |
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250 // From class CActive. |
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251 // Invoked when the active object is cancelled. |
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252 // --------------------------------------------------------------------------- |
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253 // |
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254 void CIRImageConverterImpl::DoCancel() |
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255 { |
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256 IRLOG_DEBUG( "CIRImageConverterImpl::DoCancel - Entering" ); |
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257 if ( iDecoder ) |
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258 { |
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259 iDecoder->Cancel(); |
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260 } |
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261 if ( iScaler ) |
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262 { |
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263 iScaler->Cancel(); |
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264 } |
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265 IRLOG_DEBUG( "CIRImageConverterImpl::DoCancel - Exiting" ); |
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266 } |
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267 |
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268 // --------------------------------------------------------------------------- |
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269 // From class CActive. |
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270 // Invoked when the active object completes an asynchronous request. |
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271 // --------------------------------------------------------------------------- |
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272 // |
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273 void CIRImageConverterImpl::RunL() |
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274 { |
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275 IRLOG_DEBUG( "CIRImageConverterImpl::RunL - Entering" ); |
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276 if ( iStatus.Int() == KErrNone ) |
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277 { |
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278 switch ( iState ) |
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279 { |
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280 case EIRStateConvertingBitmap: |
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281 { |
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282 if ( iIsAnimated && iEnableAnimations ) |
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283 { |
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284 CGulIcon* icon = CGulIcon::NewLC(); |
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285 |
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286 icon->SetBitmapsOwnedExternally( EFalse ); |
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287 icon->SetBitmap( iBitmap ); |
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288 icon->SetMask( iMask ); |
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289 |
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290 iBitmap = NULL; |
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291 iMask = NULL; |
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292 |
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293 iFrames.AppendL( icon ); |
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294 CleanupStack::Pop( icon ); |
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295 |
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296 if ( iFrames.Count() < iDecoder->FrameCount() ) |
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297 { |
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298 CreateBitmapL( iDecoder->FrameInfo( iFrames.Count() ).iOverallSizeInPixels, |
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299 iBitmap, iMask ); |
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300 |
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301 iDecoder->Convert( &iStatus, *iBitmap, *iMask, iFrames.Count() ); |
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302 SetActive(); |
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303 } |
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304 else |
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305 { |
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306 StartBitmapAnimationL(); |
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307 } |
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308 } |
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309 else |
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310 { |
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311 iState = EIRStateScalingBitmap; |
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312 iScaler->Scale( &iStatus, *iBitmap, iTargetSize, iMaintainAspectRatio ); |
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313 SetActive(); |
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314 } |
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315 } |
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316 break; |
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317 case EIRStateScalingBitmap: |
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318 iState = EIRStateScalingBitmapMask; |
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319 iScaler->Scale( &iStatus, *iMask, iTargetSize, iMaintainAspectRatio ); |
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320 SetActive(); |
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321 break; |
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322 case EIRStateScalingBitmapMask: |
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323 NotifyObserver( KErrNone ); |
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324 break; |
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325 default: |
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326 break; |
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327 } |
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328 } |
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329 else |
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330 { |
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331 NotifyObserver( iStatus.Int() ); |
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332 } |
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333 IRLOG_DEBUG( "CIRImageConverterImpl::RunL - Exiting" ); |
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334 } |
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335 |
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336 // --------------------------------------------------------------------------- |
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337 // From class CActive. |
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338 // Invoked when RunL leaves. |
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339 // --------------------------------------------------------------------------- |
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340 // |
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341 TInt CIRImageConverterImpl::RunError( TInt aError ) |
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342 { |
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343 IRLOG_DEBUG( "CIRImageConverterImpl::NewL - Entering" ); |
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344 NotifyObserver( aError ); |
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345 return KErrNone; |
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346 } |
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347 |
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348 // --------------------------------------------------------------------------- |
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349 // From class MSvgRequestObserver. |
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350 // Invoked when the bitmap has been updated by the SVG-T engine. |
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351 // --------------------------------------------------------------------------- |
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352 // |
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353 void CIRImageConverterImpl::UpdateScreen() |
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354 { |
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355 iSvgEngine->GenerateMask( iMask ); |
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356 // SVG-T engine MUST NOT be destroyed here as its internal implementation |
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357 // relies on it existing after execution leaves this method. This means |
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358 // that the observer notification must be asynchronous |
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359 NotifyObserver( KErrNone, EFalse ); |
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360 } |
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361 |
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362 // --------------------------------------------------------------------------- |
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363 // From class MSvgRequestObserver. |
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364 // Not implemented. |
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365 // --------------------------------------------------------------------------- |
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366 // |
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367 TBool CIRImageConverterImpl::ScriptCall( const TDesC& /*aScript*/, CSvgElementImpl* |
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368 /*aCallerElement*/ ) |
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369 { |
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370 return EFalse; |
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371 } |
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372 |
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373 // --------------------------------------------------------------------------- |
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374 // From class MSvgRequestObserver. |
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375 // Not implemented. |
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376 // --------------------------------------------------------------------------- |
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377 // |
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378 TInt CIRImageConverterImpl::FetchImage( const TDesC& /*aUri*/, RFs& /*aSession*/, RFile& |
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379 /*aFileHandle*/ ) |
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380 { |
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381 return KErrNone; |
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382 } |
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383 |
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384 // --------------------------------------------------------------------------- |
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385 // From class MSvgRequestObserver. |
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386 // Not implemented. |
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387 // --------------------------------------------------------------------------- |
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388 // |
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389 TInt CIRImageConverterImpl::FetchFont( const TDesC& /*aUri*/, RFs& /*aSession*/, RFile& |
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390 /*aFileHandle*/ ) |
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391 { |
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392 return KErrNone; |
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393 } |
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394 |
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395 // --------------------------------------------------------------------------- |
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396 // From class MSvgRequestObserver. |
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397 // Not implemented. |
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398 // --------------------------------------------------------------------------- |
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399 // |
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400 void CIRImageConverterImpl::UpdatePresentation( const TInt32& /*aNoOfAnimation*/ ) |
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401 { |
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402 } |
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403 |
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404 // --------------------------------------------------------------------------- |
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405 // Performs cleanup on the converter object. |
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406 // --------------------------------------------------------------------------- |
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407 // |
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408 void CIRImageConverterImpl::Cleanup( TBool aThorough ) |
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409 { |
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410 Cancel(); |
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411 if ( aThorough ) |
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412 { |
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413 delete iProcessedBitmap; |
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414 iProcessedBitmap = NULL; |
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415 |
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416 delete iProcessedMask; |
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417 iProcessedMask = NULL; |
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418 } |
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419 if(iDecoder) |
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420 { |
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421 delete iDecoder; |
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422 iDecoder = NULL; |
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423 } |
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424 if(iScaler) |
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425 { |
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426 delete iScaler; |
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427 iScaler = NULL; |
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428 } |
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429 |
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430 if(iSvgEngine) |
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431 { |
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432 delete iSvgEngine; |
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433 iSvgEngine = NULL; |
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434 } |
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435 if(iFrameTimer) |
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436 { |
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437 delete iFrameTimer; |
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438 iFrameTimer = NULL; |
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439 } |
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440 if(iBitmap) |
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441 { |
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442 delete iBitmap; |
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443 iBitmap = NULL; |
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444 } |
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445 if(iMask) |
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446 { |
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447 delete iMask; |
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448 iMask = NULL; |
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449 } |
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450 if(iLastFrameBitmap) |
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451 { |
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452 delete iLastFrameBitmap; |
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453 iLastFrameBitmap = NULL; |
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454 } |
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455 if(iLastFrameMask) |
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456 { |
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457 delete iLastFrameMask; |
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458 iLastFrameMask = NULL; |
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459 } |
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460 |
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461 iFrames.ResetAndDestroy(); |
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462 |
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463 iNotifyObserverCallBack->Cancel(); |
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464 |
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465 iFrameIndex = 0; |
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466 iIsAnimated = EFalse; |
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467 iError = KErrNone; |
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468 iState = EIRStateIdle; |
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469 } |
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470 |
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471 // --------------------------------------------------------------------------- |
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472 // Creates the proper handler for the raw image data. |
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473 // --------------------------------------------------------------------------- |
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474 // |
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475 void CIRImageConverterImpl::CreateDataHandlerL() |
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476 { |
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477 IRRDEBUG2( "CIRImageConverterImpl::CreateDataHandlerL - Entering", KNullDesC ); |
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478 TBuf8<KMaxDataTypeLength> mimeType; |
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479 TRAPD( err, CImageDecoder::GetMimeTypeDataL( iData, mimeType ) ) |
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480 |
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481 if ( err == KErrNone ) // Image decoder can handle this MIME type. |
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482 { |
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483 |
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484 TRAPD(err1,iDecoder = CImageDecoder::DataNewL( CCoeEnv::Static()->FsSession(), iData, |
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485 KIRImageDecoderOptions );) |
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486 if(err1!=KErrNone) |
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487 { |
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488 if ( iObserver ) |
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489 { |
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490 IRRDEBUG2( "CIRImageConverterImpl::CreateDataHandlerL, err = %d", err1); |
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491 NotifyObserver( err1 ); |
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492 IRRDEBUG2( "CIRImageConverterImpl::CreateDataHandlerL, error is notified", KNullDesC); |
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493 } |
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494 } |
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495 else |
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496 { |
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497 iScaler = CBitmapScaler::NewL(); |
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498 iScaler->SetQualityAlgorithm( KIRBitmapScalerQualityAlgorithm ); |
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499 iScaler->UseLowMemoryAlgorithm( ETrue ); // Return value ignored on purpose; it's ok if low memory algorithm cannot be used when scaling. |
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500 |
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501 if ( iDecoder->FrameCount() > 1 ) |
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502 { |
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503 iFrameTimer = CPeriodic::NewL( CActive::EPriorityStandard ); |
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504 iIsAnimated = ETrue; |
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505 } |
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506 |
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507 CreateBitmapL( iDecoder->FrameInfo().iOverallSizeInPixels, iBitmap, iMask ); |
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508 } |
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509 } |
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510 else // Try using the SVG-T engine for decoding the image. |
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511 { |
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512 |
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513 TFontSpec fontSpec = AknLayoutUtils::LayoutFontFromId( |
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514 EAknLogicalFontSecondaryFont )->FontSpecInTwips(); |
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515 |
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516 // The SVG-T engine requires that the bitmap is created prior to its instantiation. |
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517 // As the dummy bitmaps created here are 0x0, StartL must take care of instantiating them to |
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518 // proper sizes and updating the SVG-T engine's frame buffer manually before starting the conversion. |
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519 |
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520 CreateBitmapL( TSize( 0, 0 ), iBitmap, iMask ); |
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521 |
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522 iSvgEngine = CSvgEngineInterfaceImpl::NewL( iBitmap, this, fontSpec ); |
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523 MSvgError* svgErr = iSvgEngine->Load( iData ); |
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524 if ( svgErr && svgErr->HasError() ) |
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525 { |
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526 err = svgErr->SystemErrorCode(); |
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527 } |
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528 else |
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529 { |
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530 err = KErrNone; |
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531 iIsAnimated = iSvgEngine->SvgHasAnimation( iSvgEngine->SvgDocument() ); |
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532 } |
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533 } |
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534 |
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535 if ( err ) |
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536 { |
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537 Cleanup( ETrue ); |
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538 User::Leave( KErrNotSupported ); |
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539 } |
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540 else |
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541 { |
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542 iState = iSvgEngine ? EIRStateSvgEngineInitialized : EIRStateBitmapDecoderInitialized; |
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543 } |
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544 |
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545 IRRDEBUG2( "CIRImageConverterImpl::CreateDataHandlerL - Exiting" , KNullDesC); |
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546 } |
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547 |
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548 // --------------------------------------------------------------------------- |
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549 // Creates new bitmaps of the given size. |
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550 // --------------------------------------------------------------------------- |
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551 // |
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552 void CIRImageConverterImpl::CreateBitmapL( const TSize& aSize, CFbsBitmap*& aBitmap, |
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553 CFbsBitmap*& aMask ) |
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554 { |
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555 IRLOG_DEBUG( "CIRImageConverterImpl::CreateBitmapL - Entering" ); |
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556 CFbsBitmap* bitmap = new ( ELeave ) CFbsBitmap; |
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557 CleanupStack::PushL( bitmap ); |
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558 User::LeaveIfError( bitmap->Create( aSize, CCoeEnv::Static()->ScreenDevice() |
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559 ->DisplayMode() ) ); |
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560 |
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561 CFbsBitmap* mask = new ( ELeave ) CFbsBitmap; |
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562 CleanupStack::PushL( mask ); |
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563 User::LeaveIfError( mask->Create( aSize, EGray256 ) ); |
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564 |
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565 delete aBitmap; |
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566 aBitmap = bitmap; |
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567 |
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568 delete aMask; |
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569 aMask = mask; |
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570 |
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571 CleanupStack::Pop( 2, bitmap ); |
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572 IRLOG_DEBUG( "CIRImageConverterImpl::CreateBitmapL - Exiting" ); |
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573 } |
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574 |
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575 // --------------------------------------------------------------------------- |
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576 // Creates exact copies of the supplied bitmaps. |
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577 // --------------------------------------------------------------------------- |
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578 // |
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579 void CIRImageConverterImpl::CreateBitmapCopyL( const CFbsBitmap& aSourceBitmap, |
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580 const CFbsBitmap& aSourceMask, |
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581 CFbsBitmap*& aBitmap, |
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582 CFbsBitmap*& aMask ) |
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583 { |
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584 IRLOG_DEBUG( "CIRImageConverterImpl::CreateBitmapCopyL - Entering" ); |
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585 CFbsBitmap* bitmap = IHLBitmapUtil::CopyBitmapLC( aSourceBitmap ); |
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586 CFbsBitmap* mask = IHLBitmapUtil::CopyBitmapLC( aSourceMask ); |
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587 |
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588 delete aBitmap; |
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589 aBitmap = bitmap; |
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590 |
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591 delete aMask; |
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592 aMask = mask; |
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593 |
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594 CleanupStack::Pop( 2, bitmap ); |
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595 IRLOG_DEBUG( "CIRImageConverterImpl::CreateBitmapCopyL - Exiting" ); |
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596 } |
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597 |
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598 // --------------------------------------------------------------------------- |
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599 // Starts the bitmap animation. |
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600 // --------------------------------------------------------------------------- |
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601 // |
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602 void CIRImageConverterImpl::StartBitmapAnimationL() |
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603 { |
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604 __ASSERT_DEBUG( iFrames.Count() == iDecoder->FrameCount(), User::Invariant() ); |
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605 |
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606 RenderBitmapAnimationFrameL( ETrue ); |
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607 } |
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608 |
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609 // --------------------------------------------------------------------------- |
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610 // Renders the current bitmap animation frame. |
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611 // --------------------------------------------------------------------------- |
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612 // |
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613 void CIRImageConverterImpl::RenderBitmapAnimationFrameL( TBool aFirstTime ) |
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614 { |
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615 IRLOG_DEBUG( "CIRImageConverterImpl::RenderBitmapAnimationFrameL - Entering" ); |
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616 __ASSERT_DEBUG( iFrames.Count() && iFrames.Count() > iFrameIndex, User::Invariant() ); |
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617 |
|
618 |
|
619 const TGifImageControl* gifImageControl = static_cast<const TGifImageControl*> |
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620 ( iDecoder->FrameData( iFrameIndex ).GetFrameData( 0 ) ); |
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621 if ( gifImageControl ) |
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622 { |
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623 if ( aFirstTime ) |
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624 { |
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625 // When rendering the animation for the very first time, we just make a copy of the first frame. |
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626 CreateBitmapCopyL( *iFrames[0]->Bitmap(), *iFrames[0]->Mask(), |
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627 iLastFrameBitmap, iLastFrameMask ); |
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628 } |
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629 else |
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630 { |
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631 CFbsBitmapDevice* lastFrameBitmapDevice = CFbsBitmapDevice::NewL( iLastFrameBitmap ); |
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632 CleanupStack::PushL( lastFrameBitmapDevice ); |
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633 CFbsBitGc* lastFrameBitmapGc = CFbsBitGc::NewL(); |
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634 CleanupStack::PushL( lastFrameBitmapGc ); |
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635 lastFrameBitmapGc->Activate( lastFrameBitmapDevice ); |
|
636 |
|
637 CFbsBitmapDevice* lastFrameMaskDevice = CFbsBitmapDevice::NewL( iLastFrameMask ); |
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638 CleanupStack::PushL( lastFrameMaskDevice ); |
|
639 CFbsBitGc* lastFrameMaskGc = CFbsBitGc::NewL(); |
|
640 CleanupStack::PushL( lastFrameMaskGc ); |
|
641 lastFrameMaskGc->Activate( lastFrameMaskDevice ); |
|
642 |
|
643 TRect rect = iDecoder->FrameInfo( iFrameIndex ).iFrameCoordsInPixels; |
|
644 |
|
645 |
|
646 switch ( gifImageControl->iDisposalMethod ) |
|
647 { |
|
648 case TGifImageControl::ENone: |
|
649 // The new frame is completely self-sufficient, so no information about the previous frame is required. |
|
650 lastFrameBitmapGc->BitBlt( rect.iTl, iFrames[iFrameIndex]->Bitmap(), |
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651 TRect( TPoint(), rect.Size() ) ); |
|
652 lastFrameMaskGc->BitBlt( rect.iTl, iFrames[iFrameIndex]->Mask(), |
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653 TRect( TPoint(), rect.Size() ) ); |
|
654 break; |
|
655 case TGifImageControl::ELeaveInPlace: |
|
656 // The new frame only contains a partial update on the image, so we have to retain the previous frame state. |
|
657 lastFrameBitmapGc->BitBltMasked( rect.iTl, iFrames[iFrameIndex]->Bitmap(), |
|
658 TRect( TPoint(), rect.Size() ), |
|
659 iFrames[iFrameIndex]->Mask(), EFalse ); |
|
660 break; |
|
661 case TGifImageControl::ERestoreToBackground: |
|
662 // The new frame is restored to the background color defined in its data. |
|
663 lastFrameBitmapGc->SetBrushColor( |
|
664 iDecoder->FrameInfo( iFrameIndex ).iBackgroundColor ); |
|
665 lastFrameBitmapGc->Clear(); |
|
666 lastFrameMaskGc->SetBrushColor( KRgbBlack ); |
|
667 lastFrameMaskGc->Clear(); |
|
668 lastFrameBitmapGc->BitBlt( rect.iTl, iFrames[iFrameIndex]->Bitmap(), |
|
669 TRect( TPoint(), rect.Size() ) ); |
|
670 lastFrameMaskGc->BitBlt( rect.iTl, iFrames[iFrameIndex]->Mask(), |
|
671 TRect( TPoint(), rect.Size() ) ); |
|
672 break; |
|
673 case TGifImageControl::ERestoreToPrevious: |
|
674 // The new frame is exactly the same as the previous one, so no special processing is required. |
|
675 break; |
|
676 default: |
|
677 break; |
|
678 } |
|
679 |
|
680 CleanupStack::PopAndDestroy( KFour, lastFrameBitmapDevice ); |
|
681 } |
|
682 |
|
683 CreateBitmapCopyL( *iLastFrameBitmap, *iLastFrameMask, iBitmap, iMask ); |
|
684 } |
|
685 else |
|
686 { |
|
687 User::Leave( KErrNotReady ); |
|
688 } |
|
689 |
|
690 iState = EIRStateScalingBitmap; |
|
691 iScaler->Scale( &iStatus, *iBitmap, iTargetSize, iMaintainAspectRatio ); |
|
692 SetActive(); |
|
693 IRLOG_DEBUG( "CIRImageConverterImpl::RenderBitmapAnimationFrameL - Exiting" ); |
|
694 } |
|
695 |
|
696 // --------------------------------------------------------------------------- |
|
697 // Notifies the observer either synchronously or asynchronously. |
|
698 // --------------------------------------------------------------------------- |
|
699 // |
|
700 void CIRImageConverterImpl::NotifyObserver( TInt aError, TBool aSynchronous ) |
|
701 { |
|
702 IRRDEBUG2( "CIRImageConverterImpl::NotifyObserver - Entering, aError = %d", aError ); |
|
703 iError = aError; |
|
704 iNotifyObserverCallBack->Cancel(); |
|
705 |
|
706 if ( aSynchronous ) |
|
707 { |
|
708 StaticNotifyObserverCallBack( this ); |
|
709 } |
|
710 else |
|
711 { |
|
712 iNotifyObserverCallBack->CallBack(); |
|
713 } |
|
714 IRRDEBUG2( "CIRImageConverterImpl::NotifyObserver - Exiting", KNullDesC ); |
|
715 } |
|
716 |
|
717 // --------------------------------------------------------------------------- |
|
718 // Call back for notifying the observer. |
|
719 // --------------------------------------------------------------------------- |
|
720 // |
|
721 TInt CIRImageConverterImpl::StaticNotifyObserverCallBack( TAny* aSelf ) |
|
722 { |
|
723 IRLOG_DEBUG( "CIRImageConverterImpl::StaticNotifyObserverCallBack - Entering" ); |
|
724 CIRImageConverterImpl* self = static_cast<CIRImageConverterImpl*>( aSelf ); |
|
725 if ( self ) |
|
726 { |
|
727 TInt err = self->iError; |
|
728 MIRImageConverterObserver::TIRImageConversionEvent event = MIRImageConverterObserver:: |
|
729 EIRImageConversionCompleted; |
|
730 |
|
731 if ( err == KErrNone ) |
|
732 { |
|
733 if ( self->iSvgEngine && self->iIsAnimated && self->iEnableAnimations ) |
|
734 { |
|
735 TRAP( err, self->CreateBitmapCopyL( *self->iBitmap, *self->iMask, |
|
736 self->iProcessedBitmap, self->iProcessedMask ) ) |
|
737 } |
|
738 else |
|
739 { |
|
740 delete self->iProcessedBitmap; |
|
741 self->iProcessedBitmap = self->iBitmap; |
|
742 self->iBitmap = NULL; |
|
743 delete self->iProcessedMask; |
|
744 self->iProcessedMask = self->iMask; |
|
745 self->iMask = NULL; |
|
746 } |
|
747 |
|
748 if ( !err && self->iIsAnimated && self->iEnableAnimations ) |
|
749 { |
|
750 event = MIRImageConverterObserver::EIRFrameConversionCompleted; |
|
751 |
|
752 if ( self->iDecoder ) |
|
753 { |
|
754 self->iState = EIRStateBetweenBitmapAnimationFrames; |
|
755 |
|
756 self->iFrameTimer->Cancel(); |
|
757 self->iFrameTimer->Start( static_cast<TInt>( self->iDecoder-> |
|
758 FrameInfo( self->iFrameIndex ).iDelay.Int64() ), 0, |
|
759 TCallBack( StaticNextFrameCallBack, self ) ); |
|
760 |
|
761 self->iFrameIndex++; |
|
762 if ( self->iFrameIndex >= self->iDecoder->FrameCount() ) |
|
763 { |
|
764 self->iFrameIndex = 0; |
|
765 } |
|
766 } |
|
767 } |
|
768 } |
|
769 |
|
770 if ( err || event == MIRImageConverterObserver::EIRImageConversionCompleted ) |
|
771 { |
|
772 self->Cleanup(); |
|
773 } |
|
774 |
|
775 if ( self->iObserver ) |
|
776 { |
|
777 TRAP_IGNORE( self->iObserver->HandleImageConversionEventL( event, self->iId, err ) ) |
|
778 } |
|
779 } |
|
780 |
|
781 return KErrNone; |
|
782 } |
|
783 |
|
784 // --------------------------------------------------------------------------- |
|
785 // Call back for advancing to the next frame when bitmap animations are used. |
|
786 // --------------------------------------------------------------------------- |
|
787 // |
|
788 TInt CIRImageConverterImpl::StaticNextFrameCallBack( TAny* aSelf ) |
|
789 { |
|
790 CIRImageConverterImpl* self = static_cast<CIRImageConverterImpl*>( aSelf ); |
|
791 if ( self ) |
|
792 { |
|
793 self->iFrameTimer->Cancel(); |
|
794 TRAPD( err, self->RenderBitmapAnimationFrameL() ) |
|
795 if ( err ) |
|
796 { |
|
797 self->NotifyObserver( err ); |
|
798 } |
|
799 } |
|
800 return KErrNone; |
|
801 } |
|