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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 "CVtImageRotatorImplMirrorFlip.h" |
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25 #include "cvtimage.h" |
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26 #include "CVtImageIYUV.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 # define __IF_DEBUG(t) {RDebug::t;} |
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32 #else |
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33 # define __IF_DEBUG(t) |
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34 #endif |
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35 |
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36 // LOCAL CONSTANTS AND MACROS |
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37 |
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38 // ============================ MEMBER FUNCTIONS =============================== |
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39 |
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40 // ======================= CVtImageRotatorImplMirrorFlip ======================= |
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41 |
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42 // ----------------------------------------------------------------------------- |
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43 // CVtImageRotatorImplMirrorFlip::CVtImageRotatorImplMirrorFlip( |
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44 // const CVtImageRotator::TRotationAngle& aAngle ) |
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45 // ----------------------------------------------------------------------------- |
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46 CVtImageRotatorImplMirrorFlip::CVtImageRotatorImplMirrorFlip( |
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47 const CVtImageRotator::TRotationAngle& aAngle ) : CVtImageRotatorImpl( aAngle ) |
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48 { |
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49 } |
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50 |
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51 // ----------------------------------------------------------------------------- |
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52 // CVtImageRotatorImplMirrorFlip::Rotate( TBool& aContinue ) |
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53 // ----------------------------------------------------------------------------- |
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54 TInt CVtImageRotatorImplMirrorFlip::Rotate( TBool& aContinue ) |
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55 { |
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56 __IF_DEBUG( Print( _L( "ImageRotator [%d]: CVtImageRotatorImplMirrorFlip::Rotate() >>" ), RThread().Id().operator TUint() ) ); |
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57 |
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58 TInt result( KErrNone ); |
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59 |
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60 aContinue = EFalse; |
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61 |
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62 TBool isSameBitmap( iSource->DataAddress() == iTarget->DataAddress() ); |
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63 |
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64 if( iAngle == CVtImageRotator::EFlipVerticalAxis ) |
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65 { |
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66 // Are source and target referencing same bitmap? |
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67 if( isSameBitmap ) |
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68 { |
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69 // YES: Flip inside bitmap |
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70 Flip( *iTarget ); |
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71 } |
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72 else |
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73 { |
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74 // NO: Use flipping from source to target |
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75 Flip(); |
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76 } |
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77 } |
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78 else if( iAngle == CVtImageRotator::EMirrorHorizontalAxis ) |
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79 { |
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80 // Are source and target referencing same bitmap? |
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81 if( isSameBitmap ) |
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82 { |
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83 // YES: Mirror inside bitmap |
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84 Mirror( *iTarget ); |
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85 } |
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86 else |
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87 { |
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88 // NO: Mirror from source to target |
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89 Mirror(); |
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90 } |
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91 } |
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92 else if( iAngle == CVtImageRotator::E180DegreesClockwise ) |
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93 { |
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94 // Are source and target referencing same bitmap? |
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95 if( isSameBitmap ) |
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96 { |
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97 // YES: Mirror inside bitmap |
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98 Mirror( *iTarget ); |
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99 } |
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100 else |
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101 { |
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102 // NO: Mirror from source to target |
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103 Mirror(); |
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104 } |
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105 Flip( *iTarget ); |
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106 } |
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107 |
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108 __IF_DEBUG( Print( _L( "ImageRotator [%d]: CVtImageRotatorImplMirrorFlip::Rotate() <<" ), RThread().Id().operator TUint() ) ); |
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109 |
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110 return result; |
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111 } |
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112 |
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113 // ----------------------------------------------------------------------------- |
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114 // CVtImageRotatorImplMirrorFlip::ValidateSourceTargetL( |
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115 // const CVtImage& aSource, CVtImage& aTarget ) |
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116 // ----------------------------------------------------------------------------- |
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117 void CVtImageRotatorImplMirrorFlip::ValidateSourceTargetL( |
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118 const CVtImage& aSource, |
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119 CVtImage& aTarget ) |
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120 { |
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121 |
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122 |
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123 // Sizes must match |
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124 if( aSource.Size() != aTarget.Size() ) |
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125 { |
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126 User::Leave( KErrNotSupported ); |
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127 } |
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128 |
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129 // Displaymodes must match |
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130 if( aSource.DisplayMode() != aTarget.DisplayMode() ) |
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131 { |
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132 User::Leave( KErrNotSupported ); |
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133 } |
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134 |
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135 // Check that displaymode is one of the supported |
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136 switch( aSource.DisplayMode() ) |
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137 { |
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138 case CVtImage::EVtColor4K: |
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139 case CVtImage::EVtColor64K: |
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140 case CVtImage::EVtColor16M: |
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141 case CVtImage::EVtColor16MU: |
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142 case CVtImage::EVtColor16MA: |
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143 case CVtImage::EVtColorIYUV: |
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144 break; |
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145 |
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146 default: |
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147 User::Leave( KErrNotSupported ); |
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148 } |
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149 } |
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150 |
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151 // ----------------------------------------------------------------------------- |
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152 // CVtImageRotatorImplMirrorFlip::ValidateSourceTargetL( |
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153 // const CVtImage& aSource, CVtImage& aTarget ) |
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154 // ----------------------------------------------------------------------------- |
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155 TBool CVtImageRotatorImplMirrorFlip::SupportsRotationAngle( |
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156 const CVtImageRotator::TRotationAngle& aAngle ) |
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157 { |
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158 TBool result( EFalse ); |
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159 |
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160 if( ( aAngle == CVtImageRotator::EMirrorHorizontalAxis ) || |
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161 ( aAngle == CVtImageRotator::EFlipVerticalAxis ) || |
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162 ( aAngle == CVtImageRotator::E180DegreesClockwise ) ) |
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163 { |
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164 result = ETrue; |
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165 } |
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166 |
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167 return result; |
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168 } |
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169 |
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170 // ----------------------------------------------------------------------------- |
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171 // CVtImageRotatorImplMirrorFlip::Mirror() |
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172 // ----------------------------------------------------------------------------- |
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173 void CVtImageRotatorImplMirrorFlip::Mirror() |
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174 { |
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175 TInt bytesPerRow( iSource->BytesPerRow() ); |
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176 |
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177 TInt height( iSource->Size().iHeight ); |
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178 |
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179 TInt width( iSource->Size().iWidth ); |
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180 |
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181 switch( iSource->DisplayMode() ) |
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182 { |
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183 // DisplayMode: 4K and 64K |
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184 case CVtImage::EVtColor4K: |
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185 case CVtImage::EVtColor64K: |
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186 { |
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187 const TUint8* s = reinterpret_cast< const TUint8* >( iSource->DataAddress() ); |
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188 |
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189 TUint8* d = reinterpret_cast< TUint8* >( iTarget->DataAddress() ); |
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190 |
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191 d += bytesPerRow; |
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192 |
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193 if( width & 1 ) |
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194 { |
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195 d -= 2; |
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196 } |
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197 |
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198 for( TInt y = height - 1; y >= 0; y-- ) |
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199 { |
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200 register const TUint16* tempS = reinterpret_cast< const TUint16* >( s ); |
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201 |
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202 register TUint16* tempD = reinterpret_cast< TUint16* >( d ); |
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203 |
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204 for( register TInt x = width - 1; x >= 0; x-- ) |
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205 { |
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206 *--tempD = *tempS++; |
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207 } |
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208 |
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209 s += bytesPerRow; |
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210 |
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211 d += bytesPerRow; |
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212 } |
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213 } |
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214 break; |
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215 |
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216 // DisplayMode: 16M |
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217 case CVtImage::EVtColor16M: |
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218 { |
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219 const TUint8* s = reinterpret_cast< const TUint8* >( iSource->DataAddress() ); |
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220 |
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221 TUint8* d = reinterpret_cast< TUint8* >( iTarget->DataAddress() ); |
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222 |
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223 d += width * 3; |
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224 |
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225 for( TInt y = height - 1; y >= 0; y-- ) |
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226 { |
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227 const TUint8* tempS = s; |
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228 |
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229 TUint8* tempD = d - 3; |
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230 |
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231 for( TInt x = width - 1; x >= 0; x-- ) |
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232 { |
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233 tempD[ 0 ] = *tempS++; |
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234 tempD[ 1 ] = *tempS++; |
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235 tempD[ 2 ] = *tempS++; |
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236 tempD -= 3; |
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237 } |
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238 |
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239 s += bytesPerRow; |
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240 |
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241 d += bytesPerRow; |
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242 } |
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243 } |
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244 break; |
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245 |
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246 // DisplayMode: 16MU and 16MA |
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247 case CVtImage::EVtColor16MU: |
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248 case CVtImage::EVtColor16MA: |
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249 { |
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250 const TUint8* s = reinterpret_cast< const TUint8* >( iSource->DataAddress() ); |
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251 |
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252 TUint8* d = reinterpret_cast< TUint8* >( iTarget->DataAddress() ); |
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253 |
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254 d += bytesPerRow; |
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255 |
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256 for( TInt y = height - 1; y >= 0; y-- ) |
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257 { |
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258 register const TUint32* tempS = reinterpret_cast< const TUint32* >( s ); |
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259 register TUint32* tempD = reinterpret_cast< TUint32* >( d ); |
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260 |
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261 for( TInt x = width - 1; x >= 0; x-- ) |
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262 { |
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263 *--tempD = *tempS++; |
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264 } |
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265 |
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266 s += bytesPerRow; |
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267 |
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268 d += bytesPerRow; |
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269 } |
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270 } |
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271 break; |
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272 |
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273 // IYUV |
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274 case CVtImage::EVtColorIYUV: |
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275 MirrorIYUV( reinterpret_cast< const CVtImageIYUV& >( *iSource ), reinterpret_cast< CVtImageIYUV& >( *iTarget ) ); |
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276 break; |
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277 |
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278 default: |
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279 break; |
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280 |
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281 } |
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282 } |
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283 |
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284 // ----------------------------------------------------------------------------- |
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285 // CVtImageRotatorImplMirrorFlip::Mirror( CVtImage& aTarget ) |
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286 // ----------------------------------------------------------------------------- |
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287 void CVtImageRotatorImplMirrorFlip::Mirror( CVtImage& aTarget ) |
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288 { |
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289 TInt bytesPerRow( aTarget.BytesPerRow() ); |
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290 |
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291 TInt height( aTarget.Size().iHeight ); |
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292 |
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293 TInt width( aTarget.Size().iWidth ); |
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294 |
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295 switch( aTarget.DisplayMode() ) |
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296 { |
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297 // DisplayMode: 4K and 64K |
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298 case CVtImage::EVtColor4K: |
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299 case CVtImage::EVtColor64K: |
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300 { |
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301 TUint8* d = reinterpret_cast< TUint8* >( aTarget.DataAddress() ); |
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302 |
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303 TUint8* s = reinterpret_cast< TUint8* >( d ); |
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304 |
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305 d += bytesPerRow; |
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306 |
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307 if( width & 1 ) |
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308 { |
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309 d -= 2; |
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310 } |
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311 |
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312 for( TInt y = height - 1; y >= 0; y-- ) |
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313 { |
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314 register TUint16* tempS = reinterpret_cast< TUint16* >( s ); |
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315 |
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316 register TUint16* tempD = reinterpret_cast< TUint16* >( d ); |
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317 |
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318 for( register TInt x = width/2 - 1; x >= 0; x-- ) |
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319 { |
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320 TUint16 p = *tempS; |
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321 *tempS++ = *--tempD; |
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322 *tempD = p; |
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323 } |
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324 |
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325 s += bytesPerRow; |
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326 |
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327 d += bytesPerRow; |
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328 } |
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329 } |
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330 break; |
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331 |
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332 // DisplayMode: 16M |
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333 case CVtImage::EVtColor16M: |
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334 { |
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335 TUint8* d = reinterpret_cast< TUint8* >( aTarget.DataAddress() ); |
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336 |
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337 TUint8* s = reinterpret_cast< TUint8* >( d ); |
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338 |
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339 d += width * 3; |
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340 |
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341 for( TInt y = height - 1; y >= 0; y-- ) |
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342 { |
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343 TUint8* tempS = s; |
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344 |
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345 TUint8* tempD = d - 3; |
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346 |
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347 for( TInt x = width/2 - 1; x >= 0; x-- ) |
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348 { |
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349 TUint8 s = *tempS; |
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350 TUint8 t = *tempD; |
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351 *tempD++ = s; |
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352 *tempS++ = t; |
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353 |
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354 s = *tempS; |
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355 t = *tempD; |
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356 *tempD++ = s; |
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357 *tempS++ = t; |
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358 |
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359 s = *tempS; |
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360 t = *tempD; |
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361 *tempD++ = s; |
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362 *tempS++ = t; |
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363 |
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364 tempD -= 6; |
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365 } |
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366 |
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367 s += bytesPerRow; |
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368 |
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369 d += bytesPerRow; |
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370 } |
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371 } |
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372 break; |
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373 |
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374 // DisplayMode: 16MU and 16MA |
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375 case CVtImage::EVtColor16MU: |
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376 case CVtImage::EVtColor16MA: |
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377 { |
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378 TUint8* d = reinterpret_cast< TUint8* >( aTarget.DataAddress() ); |
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379 |
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380 TUint8* s = reinterpret_cast< TUint8* >( d ); |
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381 |
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382 d += bytesPerRow; |
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383 |
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384 for( TInt y = height - 1; y >= 0; y-- ) |
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385 { |
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386 register TUint32* tempS = reinterpret_cast< TUint32* >( s ); |
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387 register TUint32* tempD = reinterpret_cast< TUint32* >( d ); |
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388 |
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389 for( TInt x = width/2 - 1; x >= 0; x-- ) |
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390 { |
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391 TUint32 p = *tempS; |
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392 *tempS++ = *--tempD; |
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393 *tempD = p; |
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394 } |
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395 |
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396 s += bytesPerRow; |
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397 |
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398 d += bytesPerRow; |
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399 } |
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400 } |
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401 break; |
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402 |
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403 // IYUV |
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404 case CVtImage::EVtColorIYUV: |
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405 MirrorIYUV( reinterpret_cast< const CVtImageIYUV& >( aTarget ), reinterpret_cast< CVtImageIYUV& >( aTarget ) ); |
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406 break; |
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407 |
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408 default: |
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409 break; |
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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 // CVtImageRotatorImplMirrorFlip::MirrorIYUV( const CVtImageIYUV& aSource, |
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416 // CVtImageIYUV& aTarget ) |
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417 // ----------------------------------------------------------------------------- |
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418 void CVtImageRotatorImplMirrorFlip::MirrorIYUV( const CVtImageIYUV& aSource, |
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419 CVtImageIYUV& aTarget ) |
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420 { |
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421 MirrorPlane( aSource.Y(), aTarget.Y(), aSource.Size().iWidth, |
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422 aSource.Size().iHeight, aSource.BytesPerRow() ); |
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423 MirrorPlane( aSource.U(), aTarget.U(), aSource.UVPlaneWidth(), |
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424 aSource.UVPlaneHeight(), aSource.UVPlaneWidth() ); |
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425 MirrorPlane( aSource.V(), aTarget.V(), aSource.UVPlaneWidth(), |
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426 aSource.UVPlaneHeight(), aSource.UVPlaneWidth() ); |
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427 } |
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428 |
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429 // ----------------------------------------------------------------------------- |
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430 // CVtImageRotatorImplMirrorFlip::MirrorPlane( TUint8* aSource, TUint8* aTarget, |
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431 // TInt aWidth, TInt aHeight, TInt aBytesPerRow ) |
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432 // ----------------------------------------------------------------------------- |
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433 void CVtImageRotatorImplMirrorFlip::MirrorPlane( TUint8* aSource, |
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434 TUint8* aTarget, TInt aWidth, TInt aHeight, TInt aBytesPerRow ) |
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435 { |
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436 if( aSource != aTarget ) |
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437 { |
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438 aTarget += aBytesPerRow; |
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439 for( TInt y = aHeight - 1; y >= 0; y-- ) |
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440 { |
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441 register const TUint8* tempS = aSource; |
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442 register TUint8* tempD = aTarget; |
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443 for( TInt x = aWidth - 1; x >= 0; x-- ) |
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444 { |
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445 *--tempD = *tempS++; |
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446 } |
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447 aSource += aBytesPerRow; |
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448 aTarget += aBytesPerRow; |
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449 } |
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450 } |
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451 else |
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452 { |
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453 aTarget += aBytesPerRow; |
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454 for( TInt y = aHeight - 1; y >= 0; y-- ) |
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455 { |
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456 register TUint8* tempS = aSource; |
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457 register TUint8* tempD = aTarget; |
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458 for( TInt x = aWidth/2 - 1; x >= 0; x-- ) |
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459 { |
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460 TUint8 p = *tempS; |
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461 *tempS++ = *--tempD; |
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462 *tempD = p; |
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463 } |
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464 aSource += aBytesPerRow; |
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465 aTarget += aBytesPerRow; |
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466 } |
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467 } |
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468 } |
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469 |
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470 // ----------------------------------------------------------------------------- |
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471 // CVtImageRotatorImplMirrorFlip::Flip() |
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472 // ----------------------------------------------------------------------------- |
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473 void CVtImageRotatorImplMirrorFlip::Flip() |
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474 { |
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475 if( iSource->DisplayMode() == CVtImage::EVtColorIYUV ) |
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476 { |
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477 FlipIYUV |
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478 ( |
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479 reinterpret_cast< const CVtImageIYUV& >( *iSource ), |
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480 reinterpret_cast< CVtImageIYUV& >( *iTarget ) |
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481 ); |
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482 } |
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483 else |
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484 { |
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485 TInt bytesPerRow( iSource->BytesPerRow() ); |
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486 |
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487 TInt height( iSource->Size().iHeight ); |
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488 |
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489 const TUint8* s = reinterpret_cast< const TUint8* >( iSource->DataAddress() ); |
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490 |
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491 TUint8* d = reinterpret_cast< TUint8* >( iTarget->DataAddress() ); |
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492 |
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493 d += ( height - 1 ) * bytesPerRow; |
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494 |
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495 for( TInt y = height - 1; y >= 0; y-- ) |
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496 { |
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497 Mem::Copy( d, s, bytesPerRow ); |
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498 s += bytesPerRow; |
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499 d -= bytesPerRow; |
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500 } |
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501 } |
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502 } |
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503 |
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504 // ----------------------------------------------------------------------------- |
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505 // CVtImageRotatorImplMirrorFlip::FlipIYUV() |
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506 // ----------------------------------------------------------------------------- |
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507 void CVtImageRotatorImplMirrorFlip::FlipIYUV |
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508 ( |
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509 const CVtImageIYUV& aSource, |
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510 CVtImageIYUV& aTarget |
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511 ) |
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512 { |
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513 FlipPlane( aSource.Y(), aTarget.Y(), aSource.Size().iHeight, aSource.BytesPerRow() ); |
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514 FlipPlane( aSource.U(), aTarget.U(), aSource.UVPlaneHeight(), aSource.UVPlaneWidth() ); |
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515 FlipPlane( aSource.V(), aTarget.V(), aSource.UVPlaneHeight(), aSource.UVPlaneWidth() ); |
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516 } |
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517 |
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518 // ----------------------------------------------------------------------------- |
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519 // CVtImageRotatorImplMirrorFlip::FlipPlane() |
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520 // ----------------------------------------------------------------------------- |
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521 void CVtImageRotatorImplMirrorFlip::FlipPlane |
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522 ( |
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523 TUint8* aSource, |
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524 TUint8* aTarget, |
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525 TInt aHeight, |
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526 TInt aBytesPerRow |
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527 ) |
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528 { |
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529 TBool doSwap = ( aSource == aTarget ); |
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530 |
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531 aTarget += ( aHeight - 1 ) * aBytesPerRow; |
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532 |
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533 if( doSwap ) |
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534 { |
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535 for( TInt y = aHeight / 2 - 1; y >= 0; y-- ) |
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536 { |
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537 Mem::Swap( aTarget, aSource, aBytesPerRow ); |
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538 aSource += aBytesPerRow; |
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539 aTarget -= aBytesPerRow; |
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540 } |
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541 } |
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542 else |
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543 { |
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544 for( TInt y = aHeight - 1; y >= 0; y-- ) |
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545 { |
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546 Mem::Copy( aTarget, aSource, aBytesPerRow ); |
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547 aSource += aBytesPerRow; |
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548 aTarget -= aBytesPerRow; |
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549 } |
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550 } |
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551 } |
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552 |
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553 // ----------------------------------------------------------------------------- |
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554 // CVtImageRotatorImplMirrorFlip::Flip( CVtImage& aTarget ) |
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555 // ----------------------------------------------------------------------------- |
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556 void CVtImageRotatorImplMirrorFlip::Flip( CVtImage& aTarget ) |
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557 { |
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558 if( iSource->DisplayMode() == CVtImage::EVtColorIYUV ) |
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559 { |
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560 FlipIYUV |
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561 ( |
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562 reinterpret_cast< const CVtImageIYUV& >( aTarget ), |
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563 reinterpret_cast< CVtImageIYUV& >( aTarget ) |
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564 ); |
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565 } |
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566 else |
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567 { |
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568 TInt bytesPerRow( aTarget.BytesPerRow() ); |
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569 |
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570 TInt height( aTarget.Size().iHeight ); |
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571 |
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572 TUint8* s = reinterpret_cast< TUint8* >( aTarget.DataAddress() ); |
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573 |
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574 TUint8* d = s; |
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575 |
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576 d += ( height - 1 ) * bytesPerRow; |
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577 |
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578 for( TInt y = height / 2 - 1; y >= 0; y-- ) |
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579 { |
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580 Mem::Swap( d, s, bytesPerRow ); |
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581 s += bytesPerRow; |
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582 d -= bytesPerRow; |
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583 } |
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584 } |
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585 } |
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586 |
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587 // End of File |
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588 |
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589 |