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1 /* |
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2 * Copyright (c) 2010 Ixonos Plc. |
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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 the "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 * Ixonos Plc |
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14 * |
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15 * Description: |
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16 * |
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17 */ |
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18 |
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19 |
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20 #include "CFilterGrayScale.h" |
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21 |
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22 |
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23 |
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24 EXPORT_C TInt CFilterGrayScale::Create() |
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25 { |
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26 CFilterGrayScale* ptr = NULL; |
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27 TRAPD( error, ptr = NewL(); ); |
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28 if( error != KErrNone ) |
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29 { |
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30 ptr = NULL; |
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31 } |
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32 return (TInt)((MImageFilter*)ptr); |
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33 } |
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34 |
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35 |
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36 |
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37 CFilterGrayScale* CFilterGrayScale::NewL() |
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38 { |
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39 CFilterGrayScale* self = new( ELeave )CFilterGrayScale(); |
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40 CleanupStack::PushL( self ); |
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41 self->ConstructL(); |
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42 CleanupStack::Pop( self ); |
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43 return self; |
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44 } |
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45 |
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46 |
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47 |
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48 CFilterGrayScale::~CFilterGrayScale() |
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49 { |
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50 } |
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51 |
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52 |
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53 |
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54 CFilterGrayScale::CFilterGrayScale() |
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55 { |
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56 |
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57 } |
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58 |
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59 |
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60 |
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61 void CFilterGrayScale::ConstructL() |
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62 { |
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63 |
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64 } |
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65 |
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66 |
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67 |
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68 TRect CFilterGrayScale::Rect() |
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69 { |
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70 return iChild->Rect(); |
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71 } |
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72 |
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73 TReal CFilterGrayScale::Scale() |
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74 { |
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75 return iChild->Scale(); |
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76 } |
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77 |
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78 TSize CFilterGrayScale::ViewPortSize() |
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79 { |
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80 return iChild->ViewPortSize(); |
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81 } |
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82 |
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83 TBlock * CFilterGrayScale::GetBlockL ( const TRect & aRect ) |
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84 { |
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85 TBlock * pB = iChild->GetBlockL (aRect); |
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86 if (!pB) return NULL; |
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87 TUint32 * pD = pB->iData; |
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88 for (TInt i = 0; i < pB->iDataLength; ++i) |
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89 { |
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90 TUint32 c = *pD; |
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91 TUint32 b = c & 0xFF; |
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92 c >>= 8; |
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93 TUint32 g = c & 0xFF; |
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94 c >>= 8; |
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95 TUint32 r = c & 0xFF; |
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96 TUint32 y = (306 * r + 587 * g + 117 * b) >> 10; |
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97 *pD++ = (y | (y << 8) | (y << 16)); |
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98 } |
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99 return pB; |
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100 } |
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101 |
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102 |
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103 void CFilterGrayScale::SetParent( MImageFilter* aParent ) |
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104 { |
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105 iParent = aParent; |
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106 } |
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107 |
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108 |
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109 |
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110 |
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111 void CFilterGrayScale::SetChild( MImageFilter* aChild ) |
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112 { |
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113 iChild = aChild; |
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114 } |
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115 |
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116 |
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117 |
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118 TInt CFilterGrayScale::CmdL( const TDesC16& /*aCmd*/ ) |
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119 { |
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120 return 0; |
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121 } |
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122 |
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123 |
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124 |
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125 const char* CFilterGrayScale::Type() |
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126 { |
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127 return "grayscale"; |
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128 } |
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129 |
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130 #if !defined(EKA2) |
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131 GLDEF_C TInt E32Dll( TDllReason ) |
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132 { |
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133 return KErrNone; |
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134 } |
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135 #endif |