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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: Image Transforms subsystem. |
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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 |
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21 #include <e32svr.h> |
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22 #include <fbs.h> |
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23 |
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24 #include "CVtImageScalerImpl.h" |
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25 #include "cvtimage.h" |
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26 #include "CVtImageBitmap.h" |
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27 |
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28 // MACROS |
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29 |
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30 #ifdef _DEBUG |
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31 #include <e32debug.h> |
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32 #define PRINT RDebug::Print |
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33 #define _IFDBG(a) a |
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34 #else |
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35 #define PRINT |
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36 #define _IFDBG(a) |
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37 #endif |
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38 |
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39 |
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40 // ============================ MEMBER FUNCTIONS =============================== |
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41 |
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42 // ========================== CVtImageScalerImpl ============================== |
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43 |
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44 // ----------------------------------------------------------------------------- |
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45 // CVtImageScalerImpl::CVtImageScalerImpl() |
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46 // ----------------------------------------------------------------------------- |
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47 CVtImageScalerImpl::CVtImageScalerImpl() : CActive( EPriorityStandard ) |
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48 { |
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49 _IFDBG(PRINT( _L("ScaleImpl.Ctor<") )); |
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50 CActiveScheduler::Add( this ); |
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51 _IFDBG(PRINT( _L("ScaleImpl.Ctor>") )); |
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52 } |
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53 |
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54 // ----------------------------------------------------------------------------- |
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55 // CVtImageScalerImpl::~CVtImageScalerImpl() |
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56 // ----------------------------------------------------------------------------- |
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57 CVtImageScalerImpl::~CVtImageScalerImpl() |
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58 { |
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59 _IFDBG(PRINT( _L("ScaleImpl.~<") )); |
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60 Cancel(); |
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61 delete iScaler; |
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62 _IFDBG(PRINT( _L("ScaleImpl.~>") )); |
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63 } |
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64 |
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65 // ----------------------------------------------------------------------------- |
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66 // CVtImageScalerImpl::SetSourceTargetL( |
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67 // const CVtImage& aSource, CVtImage& aTarget ) |
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68 // ----------------------------------------------------------------------------- |
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69 void CVtImageScalerImpl::SetSourceTargetL( |
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70 const CVtImage& aSource, |
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71 CVtImage& aTarget ) |
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72 { |
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73 iSource = iTarget = 0; |
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74 LeaveIfNotValidSizeL( aSource.Size(), TSize( 2, 2 ) ); |
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75 LeaveIfNotValidSizeL( aTarget.Size() ); |
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76 ValidateSourceTargetL( aSource, aTarget ); |
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77 iSource = &aSource; |
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78 iTarget = &aTarget; |
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79 } |
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80 |
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81 // ----------------------------------------------------------------------------- |
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82 // CVtImageScalerImpl::NeedHeapLock() const |
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83 // ----------------------------------------------------------------------------- |
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84 TBool CVtImageScalerImpl::NeedHeapLock() const |
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85 { |
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86 return iSource->NeedHeapLock() || iTarget->NeedHeapLock(); |
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87 } |
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88 |
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89 // ----------------------------------------------------------------------------- |
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90 // CVtImageScalerImpl::ScaleWithBitmapScalerL() |
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91 // ----------------------------------------------------------------------------- |
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92 void CVtImageScalerImpl::ScaleWithBitmapScalerL( |
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93 const CBitmapScaler::TQualityAlgorithm |
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94 #ifdef _DEBUG |
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95 aQuality |
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96 #endif // _DEBUG |
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97 ) |
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98 { |
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99 _IFDBG(PRINT( _L("ScaleImpl.ScaleWithBitmapScalerL<") )); |
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100 if ( IsActive() || iActiveSchedulerWait.IsStarted() ) |
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101 { |
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102 _IFDBG(PRINT( _L("ScaleImpl.ScaleWithBitmapScalerL LEAVE KErrInUse>") )); |
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103 User::Leave( KErrInUse ); |
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104 } |
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105 _IFDBG(PRINT( _L("ScaleImpl::ScaleWithBitmapScalerL aQuality = %d"), aQuality )); |
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106 CFbsBitmap& source( static_cast< CVtImageBitmap* >( |
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107 const_cast< CVtImage* >( iSource ) )->Bitmap() ); |
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108 CFbsBitmap& target( static_cast< CVtImageBitmap* >( iTarget )->Bitmap() ); |
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109 iScaler = CBitmapScaler::NewL(); |
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110 SetActive(); |
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111 iScaler->Scale( &iStatus, source, target, EFalse ); |
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112 iActiveSchedulerWait.Start(); |
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113 delete iScaler; iScaler = NULL; |
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114 _IFDBG(PRINT( _L("ScaleImpl.ScaleWithBitmapScalerL iStatus.Int() = %d"), iStatus.Int() )); |
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115 User::LeaveIfError( iStatus.Int() ); |
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116 _IFDBG(PRINT( _L("ScaleImpl.ScaleWithBitmapScalerL>") )); |
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117 } |
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118 |
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119 // ----------------------------------------------------------------------------- |
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120 // CVtImageScalerImpl::LeaveIfNotValidSizeL( |
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121 // const TSize& aSize, const TSize aMinSize ) |
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122 // ----------------------------------------------------------------------------- |
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123 void CVtImageScalerImpl::LeaveIfNotValidSizeL( |
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124 const TSize& aSize, |
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125 const TSize aMinSize ) |
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126 { |
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127 _IFDBG(PRINT( _L("ScaleImpl.LeaveIfNotValidSizeL<") )); |
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128 if( ( aSize.iWidth < aMinSize.iWidth ) || |
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129 ( aSize.iHeight < aMinSize.iHeight ) ) |
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130 { |
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131 User::Leave( KErrNotSupported ); |
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132 } |
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133 _IFDBG(PRINT( _L("ScaleImpl.LeaveIfNotValidSizeL>") )); |
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134 } |
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135 |
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136 // ----------------------------------------------------------------------------- |
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137 // CVtImageScalerImpl::RunL() |
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138 // ----------------------------------------------------------------------------- |
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139 void CVtImageScalerImpl::RunL() |
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140 { |
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141 _IFDBG(PRINT( _L("CVtImageScalerImpl.RunL") )); |
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142 iActiveSchedulerWait.AsyncStop(); |
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143 } |
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144 |
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145 // ----------------------------------------------------------------------------- |
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146 // CVtImageScalerImpl::RunL() |
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147 // ----------------------------------------------------------------------------- |
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148 void CVtImageScalerImpl::DoCancel() |
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149 { |
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150 _IFDBG(PRINT( _L("CVtImageScalerImpl.DoCancel") )); |
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151 iScaler->Cancel(); |
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152 iActiveSchedulerWait.AsyncStop(); |
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153 } |
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154 |
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155 // End of File |
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156 |
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157 |