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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 "CVtImageIYUV.h" |
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25 |
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26 // MACROS |
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27 |
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28 #ifdef _DEBUG |
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29 # define __IF_DEBUG(t) {RDebug::t;} |
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30 #else |
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31 # define __IF_DEBUG(t) |
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32 #endif |
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33 |
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34 // ============================ MEMBER FUNCTIONS =============================== |
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35 |
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36 // ----------------------------------------------------------------------------- |
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37 // CVtImageIYUV::NewL( TInt aBitmapHandle ) |
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38 // ----------------------------------------------------------------------------- |
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39 EXPORT_C CVtImageIYUV* CVtImageIYUV::NewL( const TSize& aSize ) |
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40 { |
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41 CVtImageIYUV* self = new ( ELeave ) CVtImageIYUV( aSize ); |
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42 CleanupStack::PushL( self ); |
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43 self->ConstructL( 0 ); |
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44 CleanupStack::Pop(); // self |
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45 return self; |
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46 } |
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47 |
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48 // ----------------------------------------------------------------------------- |
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49 // CVtImageIYUV::NewL( const TSize& aSize, TDisplayMode aDisplayMode, |
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50 // const TDesC8& aImage ) |
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51 // ----------------------------------------------------------------------------- |
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52 EXPORT_C CVtImageIYUV* CVtImageIYUV::NewL( |
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53 const TSize& aSize, |
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54 const TDesC8& aImage ) |
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55 { |
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56 CVtImageIYUV* self = new ( ELeave ) CVtImageIYUV( aSize ); |
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57 CleanupStack::PushL( self ); |
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58 self->ConstructL( &aImage ); |
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59 CleanupStack::Pop(); // self |
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60 return self; |
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61 } |
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62 |
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63 // ----------------------------------------------------------------------------- |
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64 // CVtImageIYUV::NewL( const TSize& aSize, TDisplayMode aDisplayMode, |
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65 // TPtr8& aImage ) |
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66 // ----------------------------------------------------------------------------- |
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67 EXPORT_C CVtImageIYUV* CVtImageIYUV::NewL( |
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68 const TSize& aSize, |
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69 TPtr8& aImage ) |
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70 { |
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71 CVtImageIYUV* self = new ( ELeave ) CVtImageIYUV( aSize ); |
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72 CleanupStack::PushL( self ); |
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73 self->ValidateSizeL( aSize ); |
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74 self->SetImageL( aImage ); // No constructor call! |
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75 CleanupStack::Pop(); // self |
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76 return self; |
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77 } |
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78 |
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79 // ----------------------------------------------------------------------------- |
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80 // CVtImageIYUV::~CVtImageIYUV() |
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81 // ----------------------------------------------------------------------------- |
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82 EXPORT_C CVtImageIYUV::~CVtImageIYUV() |
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83 { |
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84 delete iImage; |
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85 } |
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86 |
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87 // ----------------------------------------------------------------------------- |
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88 // CVtImageIYUV::SetImageL( const TDesC8& aImage ) |
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89 // ----------------------------------------------------------------------------- |
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90 EXPORT_C void CVtImageIYUV::SetImageL( const TDesC8& aImage ) |
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91 { |
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92 CheckDescriptorSizeL( aImage ); |
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93 if( !iImage ) |
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94 { |
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95 ConstructL( &aImage ); |
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96 } |
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97 else |
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98 { |
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99 *iImage = aImage; |
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100 } |
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101 } |
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102 |
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103 // ----------------------------------------------------------------------------- |
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104 // CVtImageIYUV::SetImageL( TPtr8& aImage ) |
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105 // ----------------------------------------------------------------------------- |
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106 EXPORT_C void CVtImageIYUV::SetImageL( TPtr8& aImage ) |
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107 { |
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108 CheckDescriptorSizeL( aImage ); |
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109 delete iImage; iImage = 0; |
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110 iPtrImage.Set( aImage ); |
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111 SetYUVPointers(); |
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112 } |
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113 |
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114 // ----------------------------------------------------------------------------- |
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115 // CVtImageIYUV::Image() const |
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116 // ----------------------------------------------------------------------------- |
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117 EXPORT_C TPtrC8 CVtImageIYUV::Image() const |
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118 { |
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119 return iPtrImage; |
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120 } |
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121 |
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122 // ----------------------------------------------------------------------------- |
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123 // CVtImageIYUV::Y() const |
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124 // ----------------------------------------------------------------------------- |
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125 EXPORT_C TUint8* CVtImageIYUV::Y() const |
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126 { |
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127 return iY; |
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128 } |
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129 |
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130 // ----------------------------------------------------------------------------- |
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131 // CVtImageIYUV::U() const |
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132 // ----------------------------------------------------------------------------- |
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133 EXPORT_C TUint8* CVtImageIYUV::U() const |
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134 { |
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135 return iU; |
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136 } |
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137 |
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138 // ----------------------------------------------------------------------------- |
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139 // CVtImageIYUV::V() const |
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140 // ----------------------------------------------------------------------------- |
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141 EXPORT_C TUint8* CVtImageIYUV::V() const |
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142 { |
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143 return iV; |
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144 } |
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145 |
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146 // ----------------------------------------------------------------------------- |
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147 // CVtImageIYUV::UVPlaneWidth() const |
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148 // ----------------------------------------------------------------------------- |
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149 EXPORT_C TInt CVtImageIYUV::UVPlaneWidth() const |
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150 { |
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151 return iSize.iWidth / 2; |
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152 } |
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153 |
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154 // ----------------------------------------------------------------------------- |
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155 // CVtImageIYUV::UVPlaneHeight() const |
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156 // ----------------------------------------------------------------------------- |
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157 EXPORT_C TInt CVtImageIYUV::UVPlaneHeight() const |
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158 { |
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159 return iSize.iHeight / 2; |
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160 } |
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161 |
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162 // ----------------------------------------------------------------------------- |
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163 // CVtImageIYUV::NeedHeapLock() const |
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164 // ----------------------------------------------------------------------------- |
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165 TBool CVtImageIYUV::NeedHeapLock() const |
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166 { |
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167 return EFalse; |
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168 } |
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169 |
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170 // ----------------------------------------------------------------------------- |
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171 // CVtImageIYUV::DisplayMode() const |
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172 // ----------------------------------------------------------------------------- |
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173 CVtImage::TVtDisplayMode CVtImageIYUV::DisplayMode() const |
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174 { |
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175 return CVtImage::EVtColorIYUV; |
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176 } |
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177 |
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178 // ----------------------------------------------------------------------------- |
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179 // CVtImageIYUV::Size() const |
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180 // ----------------------------------------------------------------------------- |
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181 TSize CVtImageIYUV::Size() const |
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182 { |
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183 return iSize; |
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184 } |
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185 |
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186 // ----------------------------------------------------------------------------- |
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187 // CVtImageIYUV::BytesPerRow() const |
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188 // ----------------------------------------------------------------------------- |
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189 TInt CVtImageIYUV::BytesPerRow() const |
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190 { |
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191 return iSize.iWidth; |
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192 } |
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193 |
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194 // ----------------------------------------------------------------------------- |
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195 // CVtImageIYUV::DataAddress() const |
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196 // ----------------------------------------------------------------------------- |
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197 TUint32* CVtImageIYUV::DataAddress() const |
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198 { |
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199 return reinterpret_cast< TUint32* >( iY ); |
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200 } |
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201 |
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202 // ----------------------------------------------------------------------------- |
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203 // CVtImageIYUV::LineAddress( TInt aLine ) const |
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204 // ----------------------------------------------------------------------------- |
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205 TUint32* CVtImageIYUV::LineAddress( TInt aLine ) const |
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206 { |
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207 if( aLine < 0 ) |
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208 { |
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209 aLine = 0; |
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210 } |
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211 else if( aLine > Size().iHeight - 1 ) |
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212 { |
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213 aLine = Size().iHeight - 1; |
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214 } |
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215 return reinterpret_cast< TUint32* >( |
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216 reinterpret_cast< TUint8* >( DataAddress() ) + BytesPerRow() * aLine ); |
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217 } |
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218 |
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219 // ----------------------------------------------------------------------------- |
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220 // CVtImageIYUV::ImageSize() const |
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221 // ----------------------------------------------------------------------------- |
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222 TInt CVtImageIYUV::ImageSize() const |
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223 { |
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224 return UVPlaneWidth() * UVPlaneHeight() * 2 + BytesPerRow() * iSize.iHeight; |
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225 } |
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226 |
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227 // ----------------------------------------------------------------------------- |
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228 // CVtImageIYUV::CVtImageIYUV( const TSize& aSize ) |
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229 // ----------------------------------------------------------------------------- |
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230 CVtImageIYUV::CVtImageIYUV( const TSize& aSize ) |
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231 : CVtImage( CVtImage::EVtImageIYUV ), iSize( aSize ), iPtrImage( 0, 0 ) |
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232 { |
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233 } |
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234 |
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235 // ----------------------------------------------------------------------------- |
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236 // CVtImageIYUV::ConstructL( const TDesC8* aImage ) |
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237 // ----------------------------------------------------------------------------- |
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238 void CVtImageIYUV::ConstructL( const TDesC8* aImage ) |
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239 { |
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240 ValidateSizeL( iSize ); |
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241 if( !aImage ) |
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242 { |
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243 // empty image |
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244 TInt size( ImageSize() ); |
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245 iImage = HBufC8::NewL( size ); |
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246 iImage->Des().SetLength( size ); |
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247 } |
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248 else |
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249 { |
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250 // prefilled image |
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251 CheckDescriptorSizeL( *aImage ); |
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252 iImage = aImage->AllocL(); |
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253 } |
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254 // set ptr descriptor |
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255 iPtrImage.Set( iImage->Des() ); |
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256 // set YUV pointers |
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257 SetYUVPointers(); |
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258 } |
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259 |
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260 // ----------------------------------------------------------------------------- |
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261 // CVtImageIYUV::ValidateSizeL( const TSize& aSize ) |
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262 // ----------------------------------------------------------------------------- |
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263 void CVtImageIYUV::ValidateSizeL( const TSize& aSize ) |
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264 { |
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265 if( ( aSize.iWidth & 1 ) || ( aSize.iHeight & 1 ) ) |
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266 { |
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267 User::Leave( KErrNotSupported ); |
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268 } |
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269 } |
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270 |
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271 // ----------------------------------------------------------------------------- |
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272 // CVtImageIYUV::CheckDescriptorSizeL( const TDesC8& aImage ) |
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273 // ----------------------------------------------------------------------------- |
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274 void CVtImageIYUV::CheckDescriptorSizeL( const TDesC8& aImage ) |
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275 { |
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276 if( aImage.Size() != ImageSize() ) |
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277 { |
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278 User::Leave( KErrArgument ); |
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279 } |
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280 } |
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281 |
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282 // ----------------------------------------------------------------------------- |
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283 // CVtImageIYUV::SetYUVPointers() |
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284 // ----------------------------------------------------------------------------- |
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285 void CVtImageIYUV::SetYUVPointers() |
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286 { |
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287 iY = const_cast< TUint8* >( iPtrImage.Ptr() ); |
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288 iU = iY + BytesPerRow() * iSize.iHeight; |
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289 iV = iU + UVPlaneWidth() * UVPlaneHeight(); |
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290 } |
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291 |
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292 // End of File |
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293 |
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294 |