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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 |
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20 |
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21 |
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22 #ifndef CVTIMAGEIYUV_H |
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23 #define CVTIMAGEIYUV_H |
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24 |
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25 // INCLUDE FILES |
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26 |
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27 #include "cvtimage.h" |
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28 |
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29 // CLASS DECLARATIONS |
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30 |
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31 /** |
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32 * CFbsBitmap image implementation. |
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33 * |
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34 * @lib videosource.lib |
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35 */ |
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36 class CVtImageIYUV : public CVtImage |
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37 { |
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38 public: |
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39 |
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40 /** |
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41 * Creates new instance of CVtImageIYUV. |
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42 * @param "aSize" Size of the image in pixels. |
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43 * @exception In error situation leaves with one of the system wide |
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44 * error codes. |
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45 * @return Pointer to newly created instance. |
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46 */ |
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47 IMPORT_C static CVtImageIYUV* NewL( const TSize& aSize ); |
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48 |
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49 /** |
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50 * Creates new instance of CVtImageIYUV. |
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51 * @param "aSize" Size of the image in pixels. |
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52 * @param "aImage" Image data as 8-bit descriptor. Image data is copied into |
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53 * this instance. |
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54 * @exception In error situation leaves with one of the system wide |
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55 * error codes. |
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56 * @return Pointer to newly created instance. |
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57 */ |
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58 IMPORT_C static CVtImageIYUV* NewL( const TSize& aSize, const TDesC8& aImage ); |
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59 |
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60 /** |
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61 * Creates new instance of CVtImageIYUV. |
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62 * @param "aSize" Size of the image in pixels. |
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63 * @param "aImage" Image data as 8-bit descriptor. This image will be referenced |
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64 * and thus changes to this instance will be visible in the caller descriptor |
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65 * as well. Also descriptor must remain accessible lifetime of the current |
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66 * instance or until new non-referenced image is set. |
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67 * @exception In error situation leaves with one of the system wide |
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68 * error codes. |
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69 * @return Pointer to newly created instance. |
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70 */ |
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71 IMPORT_C static CVtImageIYUV* NewL( const TSize& aSize, TPtr8& aImage ); |
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72 |
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73 /** |
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74 * C++ destructor. |
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75 */ |
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76 IMPORT_C ~CVtImageIYUV(); |
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77 |
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78 /** |
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79 * Updates image with given data. |
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80 * @param "aImage" New image. |
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81 * @param "aImage" Image data as 8-bit descriptor. Image data is copied into |
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82 * this instance. |
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83 * @exception In error situation leaves with one of the system wide |
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84 * error codes. |
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85 */ |
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86 IMPORT_C void SetImageL( const TDesC8& aImage ); |
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87 |
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88 /** |
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89 * Updates image with given data. |
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90 * @param "aImage" Image data as 8-bit descriptor. This image will be referenced |
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91 * and thus changes to this instance will be visible in the caller descriptor |
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92 * as well. Also descriptor must remain accessible lifetime of the current |
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93 * instance or until new non-referenced image is set. |
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94 * @exception In error situation leaves with one of the system wide |
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95 * error codes. |
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96 */ |
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97 IMPORT_C void SetImageL( TPtr8& aImage ); |
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98 |
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99 /** |
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100 * Returns image as descriptor. |
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101 * @return Image as 8-bit descriptor. |
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102 */ |
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103 IMPORT_C TPtrC8 Image() const; |
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104 |
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105 /** |
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106 * Returns pointer to Y plane of this image. |
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107 * @return Pointer to Y plane of this image. |
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108 */ |
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109 IMPORT_C TUint8* Y() const; |
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110 |
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111 /** |
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112 * Returns pointer to U plane of this image. |
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113 * @return Pointer to U plane of this image. |
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114 */ |
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115 IMPORT_C TUint8* U() const; |
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116 |
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117 /** |
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118 * Returns pointer to V plane of this image. |
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119 * @return Pointer to V plane of this image. |
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120 */ |
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121 IMPORT_C TUint8* V() const; |
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122 |
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123 /** |
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124 * Returns width of the U and V plane in bytes. |
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125 * @return Width of the U and V plane in bytes. |
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126 */ |
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127 IMPORT_C TInt UVPlaneWidth() const; |
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128 |
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129 /** |
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130 * Returns height of the U and V plane in bytes. |
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131 * @return Height of the U and V plane in bytes. |
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132 */ |
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133 IMPORT_C TInt UVPlaneHeight() const; |
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134 |
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135 public: // from CVtImage |
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136 |
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137 /** |
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138 * From CVtImage. See CVtImage for description. |
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139 */ |
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140 TBool NeedHeapLock() const; |
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141 |
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142 /** |
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143 * From CVtImage. See CVtImage for description. |
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144 */ |
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145 TVtDisplayMode DisplayMode() const; |
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146 |
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147 /** |
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148 * From CVtImage. See CVtImage for description. |
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149 */ |
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150 TSize Size() const; |
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151 |
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152 /** |
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153 * From CVtImage. See CVtImage for description. |
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154 */ |
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155 TInt BytesPerRow() const; |
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156 |
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157 /** |
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158 * From CVtImage. See CVtImage for description. |
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159 */ |
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160 TUint32* DataAddress() const; |
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161 |
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162 /** |
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163 * From CVtImage. See CVtImage for description. |
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164 */ |
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165 TUint32* LineAddress( TInt aLine ) const; |
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166 |
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167 |
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168 private: |
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169 |
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170 /** |
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171 * Returns size of the image in bytes (all planes |
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172 * included). |
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173 * @return Size of the image in bytes. |
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174 */ |
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175 TInt ImageSize() const; |
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176 |
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177 /** |
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178 * C++ constructor. |
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179 */ |
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180 CVtImageIYUV( const TSize& aSize ); |
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181 |
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182 /** |
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183 * Second phase constructor. |
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184 * @exception In error situation leaves with one of the system wide |
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185 * error codes. |
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186 */ |
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187 void ConstructL( const TDesC8* aImage ); |
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188 |
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189 /** |
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190 * Validates given size. |
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191 * @exception If the size is not correct leaves with KErrArgument. |
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192 */ |
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193 void ValidateSizeL( const TSize& aSize ); |
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194 |
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195 /** |
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196 * Checks the size of the given descriptor against required size. |
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197 * @exception If the size is not correct leaves with KErrArgument. |
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198 */ |
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199 void CheckDescriptorSizeL( const TDesC8& aImage ); |
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200 |
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201 /** |
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202 * Sets Y, U and V plane pointers. |
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203 */ |
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204 void SetYUVPointers(); |
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205 private: |
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206 |
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207 // Size of the image |
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208 TSize iSize; |
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209 |
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210 // Image data |
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211 HBufC8* iImage; // owned |
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212 |
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213 // Image data ptr descriptor |
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214 TPtr8 iPtrImage; |
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215 |
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216 // Ptr to Y plane |
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217 TUint8* iY; |
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218 |
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219 // Ptr to U plane |
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220 TUint8* iU; |
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221 |
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222 // Ptr to V plane |
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223 TUint8* iV; |
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224 }; |
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225 |
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226 |
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227 #endif // CVTIMAGEIYUV_H |
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228 |
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229 // End of File |
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230 |
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231 |