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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 <e32math.h> |
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21 #include "CFilterBrightness.h" |
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22 |
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23 const TInt KBrightnessScale = 80; |
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24 |
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25 EXPORT_C TInt CFilterBrightness::Create() |
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26 { |
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27 CFilterBrightness* ptr = NULL; |
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28 TRAPD( error, ptr = NewL(); ); |
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29 if( error != KErrNone ) |
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30 { |
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31 ptr = NULL; |
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32 } |
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33 return (TInt)((MImageFilter*)ptr); |
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34 } |
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35 |
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36 |
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37 |
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38 CFilterBrightness* CFilterBrightness::NewL() |
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39 { |
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40 CFilterBrightness* self = new( ELeave )CFilterBrightness(); |
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41 CleanupStack::PushL( self ); |
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42 self->ConstructL(); |
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43 CleanupStack::Pop( self ); |
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44 return self; |
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45 } |
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46 |
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47 |
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48 |
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49 CFilterBrightness::~CFilterBrightness() |
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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 |
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55 CFilterBrightness::CFilterBrightness() |
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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 |
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62 void CFilterBrightness::ConstructL() |
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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 |
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69 TRect CFilterBrightness::Rect() |
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70 { |
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71 return iChild->Rect(); |
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72 } |
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73 |
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74 TReal CFilterBrightness::Scale() |
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75 { |
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76 return iChild->Scale(); |
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77 } |
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78 |
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79 TSize CFilterBrightness::ViewPortSize() |
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80 { |
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81 return iChild->ViewPortSize(); |
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82 } |
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83 |
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84 TBlock * CFilterBrightness::GetBlockL ( const TRect & aRect ) |
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85 { |
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86 TBlock * pB = iChild->GetBlockL (aRect); |
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87 if (!pB) return NULL; |
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88 TUint32 * pD = pB->iData; |
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89 for (TInt i = 0; i < pB->iDataLength; ++i) |
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90 { |
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91 TUint32 c = *pD; |
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92 |
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93 TInt r = c & 0xFF0000; |
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94 r += iAdjR; |
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95 if (r > 0xFF0000) |
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96 { |
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97 r = 0xFF0000; |
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98 } |
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99 else if (r < 0) |
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100 { |
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101 r = 0; |
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102 } |
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103 |
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104 TInt g = c & 0xFF00; |
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105 g += iAdjG; |
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106 if (g > 0xFF00) |
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107 { |
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108 g = 0xFF00; |
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109 } |
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110 else if (g < 0) |
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111 { |
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112 g = 0; |
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113 } |
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114 |
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115 TInt b = c & 0xFF; |
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116 b += iAdjB; |
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117 if (b > 0xFF) |
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118 { |
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119 b = 0xFF; |
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120 } |
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121 if (b < 0) |
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122 { |
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123 b = 0; |
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124 } |
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125 *pD++ = 0 | r | g | b; |
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126 } |
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127 return pB; |
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128 } |
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129 |
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130 |
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131 |
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132 void CFilterBrightness::SetParent( MImageFilter* aParent ) |
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133 { |
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134 iParent = aParent; |
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135 } |
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136 |
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137 |
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138 |
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139 |
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140 void CFilterBrightness::SetChild( MImageFilter* aChild ) |
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141 { |
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142 iChild = aChild; |
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143 } |
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144 |
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145 |
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146 |
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147 TInt CFilterBrightness::CmdL( const TDesC16& aCmd ) |
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148 { |
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149 |
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150 TLex lex (aCmd); |
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151 |
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152 // Get brightness parameter [-100,100] |
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153 while ( ! lex.Eos() ) |
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154 { |
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155 TPtrC token = lex.NextToken(); |
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156 |
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157 if ( token.Compare( _L("brightness") ) == 0) |
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158 { |
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159 TInt bpar = 0; |
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160 lex.Inc(); |
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161 lex.Val (bpar); |
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162 if (bpar < - 100) |
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163 { |
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164 bpar = -100; |
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165 } |
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166 else if (bpar > 100) |
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167 { |
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168 bpar = 100; |
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169 } |
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170 |
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171 iBrightness = ((bpar * KBrightnessScale) / 100); |
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172 iAdjR = iBrightness << 16; |
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173 iAdjG = iBrightness << 8; |
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174 iAdjB = iBrightness; |
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175 } |
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176 } |
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177 return 0; |
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178 } |
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179 |
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180 const char* CFilterBrightness::Type() |
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181 { |
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182 return "brightness"; |
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183 } |
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184 |
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185 #if !defined(EKA2) |
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186 GLDEF_C TInt E32Dll( TDllReason ) |
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187 { |
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188 return KErrNone; |
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189 } |
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190 |
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191 #endif |