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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 "CFilterBubble.h" |
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21 |
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22 #include <e32math.h> |
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23 |
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24 const TInt KScaleBits = 12; |
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25 const TInt KCoordBits = 8; |
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26 |
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27 EXPORT_C TInt CFilterBubble::Create() |
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28 { |
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29 CFilterBubble* ptr = NULL; |
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30 TRAPD( error, ptr = NewL() ); |
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31 if( error != KErrNone ) |
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32 { |
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33 ptr = NULL; |
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34 } |
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35 return (TInt)((MImageFilter*)ptr); |
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36 } |
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37 |
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38 |
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39 |
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40 CFilterBubble* CFilterBubble::NewL() |
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41 { |
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42 CFilterBubble* self = new( ELeave )CFilterBubble(); |
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43 CleanupStack::PushL( self ); |
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44 self->ConstructL(); |
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45 CleanupStack::Pop( self ); |
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46 return self; |
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47 } |
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48 |
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49 |
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50 |
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51 CFilterBubble::~CFilterBubble() |
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52 { |
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53 delete[] iData; |
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54 } |
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55 |
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56 |
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57 |
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58 CFilterBubble::CFilterBubble() |
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59 { |
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60 |
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61 } |
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62 |
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63 |
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64 |
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65 void CFilterBubble::ConstructL() |
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66 { |
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67 iScale.iX = 1 << 8; |
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68 iScale.iY = 0; |
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69 iZoom = 1000; |
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70 iAngle = 0; |
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71 } |
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72 |
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73 |
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74 |
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75 TRect CFilterBubble::Rect() |
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76 { |
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77 return iChild->Rect(); |
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78 } |
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79 |
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80 TReal CFilterBubble::Scale() |
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81 { |
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82 return iChild->Scale(); |
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83 } |
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84 |
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85 TSize CFilterBubble::ViewPortSize() |
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86 { |
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87 return iChild->ViewPortSize(); |
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88 } |
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89 |
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90 TBlock * CFilterBubble::GetBlockL ( const TRect & aRect ) |
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91 { |
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92 TBlock * pB = iChild->GetBlockL (aRect); |
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93 if (!pB) return NULL; |
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94 TUint32 * pD = pB->iData; |
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95 |
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96 for (TInt i = pB->iRect.iTl.iY; i < pB->iRect.iBr.iY; ++i) |
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97 { |
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98 for (TInt j = pB->iRect.iTl.iX; j < pB->iRect.iBr.iX; ++j, ++pD) |
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99 { |
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100 |
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101 TUint32 c = *pD; |
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102 |
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103 TPoint pos = iCorrectPosition + TPoint (j << KCoordBits, i << KCoordBits); |
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104 TInt x = ( pos.iX * iScale.iX + pos.iY * iScale.iY ) >> ( KScaleBits + KCoordBits ); |
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105 TInt y = ( pos.iY * iScale.iX - pos.iX * iScale.iY ) >> ( KScaleBits + KCoordBits ); |
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106 |
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107 if ( (x >= 0) && (y >= 0) && (x < iSize.iWidth) && (y < iSize.iHeight) ) |
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108 { |
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109 |
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110 TUint32 c2 = iData[ x + y * iSize.iWidth ]; |
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111 TInt ca = c2 >> 24; |
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112 |
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113 if ( ca == 255 ) |
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114 { |
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115 *pD = c2 & 0xffffff; |
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116 } |
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117 else |
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118 { |
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119 TInt cc1 = (c2 & 0xff00ff) * ca + (c & 0xff00ff) * (255 - ca); |
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120 TInt cc2 = (c2 & 0xff00) * ca + (c & 0xff00) * (255 - ca); |
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121 *pD = (( cc1 >> 8) & 0xff00ff) + ((cc2 >> 8) & 0xff00); |
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122 } |
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123 } |
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124 } |
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125 } |
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126 return pB; |
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127 } |
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128 |
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129 |
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130 void CFilterBubble::SetParent( MImageFilter* aParent ) |
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131 { |
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132 iParent = aParent; |
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133 } |
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134 |
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135 |
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136 |
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137 void CFilterBubble::SetChild( MImageFilter* aChild ) |
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138 { |
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139 iChild = aChild; |
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140 } |
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141 |
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142 |
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143 |
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144 TInt CFilterBubble::CmdL( const TDesC16& aCmd ) |
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145 { |
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146 |
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147 TLex lex( aCmd ); |
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148 |
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149 while( ! lex.Eos() ) |
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150 { |
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151 TPtrC token = lex.NextToken(); |
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152 if( token.Compare( _L("file") ) == 0 ) |
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153 { |
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154 TPtrC namec = lex.NextToken(); |
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155 TPtrC name( namec.Ptr()+1, namec.Length()-2 ); |
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156 iFileName.Copy (name); |
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157 } |
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158 else if( token.Compare( _L("load") ) == 0 ) |
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159 { |
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160 LoadImageL(); |
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161 } |
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162 else if( token.Compare( _L("bubble") ) == 0 ) |
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163 { |
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164 lex.Inc(); |
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165 lex.Val( iBubble ); |
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166 } |
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167 else if( token.Compare( _L("mask") ) == 0 ) |
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168 { |
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169 lex.Inc(); |
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170 lex.Val( iMask ); |
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171 } |
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172 else if( token.Compare( _L("x") ) == 0 ) |
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173 { |
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174 TReal relscale = iChild->Scale(); |
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175 TInt param = 0; |
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176 lex.Inc (); |
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177 lex.Val (param); |
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178 iPosition.iX = (TInt)((param / relscale) + 0.5); |
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179 } |
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180 else if( token.Compare( _L("y") ) == 0 ) |
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181 { |
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182 TReal relscale = iChild->Scale(); |
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183 TInt param = 0; |
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184 lex.Inc (); |
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185 lex.Val (param); |
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186 iPosition.iY = (TInt)((param / relscale) + 0.5); |
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187 } |
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188 else if( token.Compare( _L("width") ) == 0 ) |
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189 { |
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190 TReal relscale = iChild->Scale(); |
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191 TInt param = 0; |
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192 lex.Inc (); |
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193 lex.Val (param); |
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194 TInt width = (TInt)((param / relscale) + 0.5); |
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195 iZoom = (width * 1000) / iSize.iWidth; |
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196 } |
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197 else if( token.Compare( _L("height") ) == 0 ) |
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198 { |
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199 TReal relscale = iChild->Scale(); |
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200 TInt param = 0; |
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201 lex.Inc (); |
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202 lex.Val (param); |
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203 TInt height = (TInt)((param / relscale) + 0.5); |
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204 iZoom = (height * 1000) / iSize.iHeight; |
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205 } |
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206 else if( token.Compare( _L("zoom") ) == 0 ) |
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207 { |
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208 lex.Inc(); |
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209 lex.Val( iZoom ); |
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210 } |
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211 else if( token.Compare( _L("angle") ) == 0 ) |
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212 { |
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213 lex.Inc(); |
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214 lex.Val( iAngle ); |
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215 } |
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216 } |
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217 |
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218 TReal relscale = iChild->Scale(); |
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219 TInt scaledx = (TInt)(iPosition.iX * relscale + 0.5); |
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220 TInt scaledy = (TInt)(iPosition.iY * relscale + 0.5); |
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221 TInt scaledz = (TInt)(iZoom * relscale + 0.5); |
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222 |
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223 TReal zoom = 0.001 * scaledz; |
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224 TReal angle = 0.001 * iAngle; |
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225 TReal rad = KPi * angle / 180.0; |
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226 TReal r; |
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227 TReal res; |
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228 |
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229 Math::Cos( r, rad ); |
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230 r *= 1 << KScaleBits; |
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231 //r /= zoom; |
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232 Math::Round( res, r, 0 ); |
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233 iScale.iX = (TInt)res; |
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234 |
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235 Math::Sin( r, rad ); |
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236 r *= 1 << KScaleBits; |
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237 //r /= zoom; |
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238 Math::Round( res, r, 0 ); |
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239 iScale.iY = (TInt)res; |
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240 |
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241 // helpers |
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242 TPoint mid( iSize.iWidth/2, iSize.iHeight/2 ); |
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243 TPoint sca( (TInt)(zoom * iScale.iX), (TInt)(zoom * iScale.iY) ); |
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244 TInt xo = ( mid.iX * sca.iX - mid.iY * sca.iY ) >> ( KScaleBits - KCoordBits ); |
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245 TInt yo = ( mid.iY * sca.iX + mid.iX * sca.iY ) >> ( KScaleBits - KCoordBits ); |
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246 |
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247 // |
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248 // iCorrectPosition is bubble mid position corrected with |
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249 // rotation ( otherwise rotation would be around topleft corner ) |
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250 // |
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251 iCorrectPosition = TPoint( xo,yo ) - TPoint( scaledx << KCoordBits, scaledy << KCoordBits ); |
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252 |
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253 // |
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254 // with iScale screen coordinates are translated to texture coordinates |
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255 // |
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256 iScale.iX = (TInt)(1.0 / zoom * iScale.iX); |
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257 iScale.iY = (TInt)(1.0 / zoom * iScale.iY); |
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258 |
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259 return 0; |
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260 } |
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261 |
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262 |
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263 |
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264 void CFilterBubble::LoadImageL () |
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265 { |
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266 |
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267 // create and load bubble |
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268 CFbsBitmap * bubble = new (ELeave) CFbsBitmap; |
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269 CleanupStack::PushL(bubble); |
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270 User::LeaveIfError ( bubble->Load (iFileName, iBubble) ); |
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271 |
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272 // create and load mask |
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273 CFbsBitmap * mask = new (ELeave) CFbsBitmap; |
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274 CleanupStack::PushL(mask); |
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275 User::LeaveIfError ( mask->Load (iFileName, iMask) ); |
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276 |
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277 // bubble size |
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278 iSize = bubble->SizeInPixels(); |
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279 |
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280 // create new buffer |
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281 delete[] iData; |
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282 iData = new (ELeave) TUint32 [iSize.iWidth * iSize.iHeight]; |
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283 |
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284 // copy bubble data |
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285 bubble->LockHeapLC(); |
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286 |
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287 TInt wsc = bubble->ScanLineLength (iSize.iWidth, bubble->DisplayMode()); |
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288 TInt wsm = mask->ScanLineLength (iSize.iWidth, mask->DisplayMode()); |
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289 TUint8 * pcos = (TUint8 *)bubble->DataAddress(); |
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290 TUint8 * pmos = (TUint8 *)mask->DataAddress(); |
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291 |
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292 for ( TInt i = 0, k = 0; i < iSize.iHeight; ++i ) |
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293 { |
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294 |
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295 TUint8 * pc = pcos; |
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296 pcos += wsc; |
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297 |
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298 TUint8 * pm = pmos; |
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299 pmos += wsm; |
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300 |
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301 for ( TInt j = 0; j < iSize.iWidth; ++j ) |
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302 { |
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303 iData[k++] = (TUint32)(*pc | (*(pc + 1) << 8) | (*(pc + 2) << 16) | (*pm++ << 24)); |
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304 pc += 3; |
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305 } |
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306 } |
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307 |
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308 CleanupStack::PopAndDestroy(3); // LockHeapLC(), mask, bubble |
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309 |
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310 } |
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311 |
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312 |
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313 |
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314 const char* CFilterBubble::Type() |
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315 { |
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316 return "bubble"; |
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317 } |
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318 |
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319 |
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320 #if !defined(EKA2) |
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321 GLDEF_C TInt E32Dll( TDllReason ) |
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322 { |
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323 return KErrNone; |
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324 } |
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325 #endif |