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1 /* |
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2 * Copyright (c) 2006 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: Video Source 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 #ifndef CVSSTILLIMTAGEDATAPROVIDER_H |
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20 #define CVSSTILLIMTAGEDATAPROVIDER_H |
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21 |
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22 // INCLUDE FILES |
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23 |
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24 #include <gdi.h> |
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25 #include "CApiVideoSource.h" |
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26 #include "cvtimagescaler.h" |
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27 #include <ecamimageprocessing.h> |
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28 |
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29 #include "cactivewait.h" |
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30 #include "mmultiframeprovider.h" |
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31 |
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32 // FORWARD DECLARATIONS |
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33 |
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34 class CImageDecoder; |
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35 class CVSStillImageDataProvider; |
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36 class CVSFrameRateTimer; |
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37 class CVtImageBitmap; |
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38 class CMultiframeProvider; |
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39 |
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40 |
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41 // CLASS DECLARATION |
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42 |
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43 /** |
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44 * Internal implementation of still image data provider. This |
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45 * class is inherited from from public provider interface. |
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46 * |
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47 * @lib videosource.lib |
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48 */ |
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49 class CVSStillImageDataProvider : public CVSDataProvider, MMultiframeprovider |
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50 { |
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51 public: // Constructors and destructor |
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52 |
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53 /** |
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54 * Static factory function create instance of this class. |
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55 * @param "aObserver" Pointer to provider observer. |
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56 * @param "aPool" Pointer to data MVSBufferPool that gives buffer to |
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57 * data provider. |
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58 * @exception Can leave with one of the system wide error codes. |
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59 * @return Pointer to new instance. |
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60 */ |
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61 static CVSStillImageDataProvider* NewL( |
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62 MVSDataProviderObserver* aObserver, |
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63 MVSBufferPool* aPool ); |
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64 |
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65 /** |
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66 * Destructor. |
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67 */ |
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68 ~CVSStillImageDataProvider(); |
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69 |
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70 public: // New functions |
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71 |
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72 public: // Functions from base classes |
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73 |
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74 /** |
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75 * Initialize provider. |
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76 * @param "aInitParams" Reference to the initialization parameters. |
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77 * @exception Can leave with one of the system wide error codes. |
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78 */ |
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79 void InitializeL( const TDesC8& aInitParams ); |
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80 |
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81 /** |
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82 * Cancel initialization of still image provider. |
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83 */ |
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84 void CancelInitializing(); |
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85 |
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86 /** |
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87 * Return digital zoom factor. |
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88 * @return Digital zoom factor. |
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89 */ |
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90 virtual TInt DigitalZoomFactor() const; |
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91 |
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92 /** |
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93 * Set digital zoom factor. |
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94 * @param "aDigitalZoomFactor" Digital zoom factor. |
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95 * @exception Can leave with one of the system wide error codes. |
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96 */ |
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97 virtual void SetDigitalZoomFactorL( TInt aDigitalZoomFactor = 0 ); |
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98 |
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99 /** |
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100 * Start view finder bitmaps. |
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101 * @param "aSize" Size of the returned view finder bitmap. |
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102 * @exception Can leave with one of the system wide error codes. |
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103 */ |
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104 virtual void StartViewFinderBitmapsL( TSize& aSize ); |
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105 |
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106 /** |
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107 * Start view finder bitmaps. |
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108 * @param "aSize" Size of the returned view finder bitmap. |
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109 * @param "aClipRect" Required clip rectangle. |
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110 * @exception Can leave with one of the system wide error codes. |
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111 */ |
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112 virtual void StartViewFinderBitmapsL( TSize& aSize,TRect& aClipRect ); |
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113 |
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114 /** |
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115 * Stop view finder bitmaps. |
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116 */ |
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117 virtual void StopViewFinder(); |
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118 |
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119 /** |
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120 * Test if view finder is active. |
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121 * @return ETrue if view finder active. |
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122 */ |
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123 virtual TBool ViewFinderActive() const; |
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124 |
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125 /** |
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126 * Start view finder bitmaps using direct screen access. |
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127 * @param "aWs" Window server session. |
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128 * @param "aScreenDevice" Screen device. |
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129 * @param "aWindow" Displayable window. |
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130 * @param "aScreenRect" Portion of the screen to which view finder data |
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131 * is to be transferred. |
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132 * @exception Can leave with one of the system wide error codes. |
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133 */ |
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134 virtual void StartViewFinderDirectL( |
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135 RWsSession& aWs, |
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136 CWsScreenDevice& aScreenDevice, |
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137 RWindowBase& aWindow, |
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138 TRect& aScreenRect ); |
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139 |
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140 /** |
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141 * Start view finder bitmaps using direct screen access. |
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142 * @param "aWs" Window server session. |
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143 * @param "aScreenDevice" Screen device. |
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144 * @param "aWindow" Displayable window. |
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145 * @param "aScreenRect" Portion of the screen to which view finder data |
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146 * is to be transferred. |
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147 * @param "aClipRect" The rectangle to which the screen will be clipped. |
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148 * @exception Can leave with one of the system wide error codes. |
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149 */ |
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150 virtual void StartViewFinderDirectL( |
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151 RWsSession& aWs, |
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152 CWsScreenDevice& aScreenDevice, |
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153 RWindowBase& aWindow, |
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154 TRect& aScreenRect, |
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155 TRect& aClipRect ); |
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156 |
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157 /** |
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158 * Return provider information. |
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159 * @param @param "aInfo" Reference to variable to where the provider |
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160 * information is copied. |
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161 */ |
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162 virtual void ProviderInfo( TVSDataProviderInfo& aInfo ); |
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163 |
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164 /** |
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165 * See CVSDataProvider for description. |
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166 */ |
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167 virtual void SetViewFinderMirrorL( TBool aMirror ); |
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168 |
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169 /** |
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170 * See CVSDataProvider for description. |
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171 */ |
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172 virtual TBool ViewFinderMirror() const; |
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173 |
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174 /** |
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175 * See CVSDataProvider for description. |
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176 */ |
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177 virtual void FreezeL(); |
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178 |
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179 /** |
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180 * See CVSDataProvider for description. |
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181 */ |
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182 virtual void UnfreezeL(); |
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183 |
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184 /** |
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185 * See CVSDataProvider for description. |
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186 */ |
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187 virtual TBool IsFrozen() const; |
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188 |
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189 /** |
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190 * @See CVSDataProvider::SetContrastL for description. |
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191 */ |
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192 virtual void SetContrastL( TInt aContrast ); |
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193 |
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194 /** |
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195 * @See CVSDataProvider::GetContrast for description. |
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196 */ |
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197 virtual TInt GetContrast( TInt& aContrast ) const; |
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198 |
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199 /** |
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200 * @See CVSDataProvider::SetBrightnessL for description. |
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201 */ |
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202 virtual void SetBrightnessL( TInt aBrightness ); |
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203 |
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204 /** |
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205 * @See CVSDataProvider::GetBrightness for description. |
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206 */ |
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207 virtual TInt GetBrightness( TInt& aBrightness ) const; |
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208 |
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209 /** |
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210 * @See CVSDataProvider::SetWhiteBalanceL for description. |
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211 */ |
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212 virtual void SetWhiteBalanceL( |
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213 CCamera::TWhiteBalance aWhiteBalance = CCamera::EWBAuto); |
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214 |
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215 /** |
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216 * @See CVSDataProvider::GetWhiteBalance for description. |
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217 */ |
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218 virtual TInt GetWhiteBalance( |
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219 CCamera::TWhiteBalance& aWhiteBalance ) const; |
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220 |
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221 /** |
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222 * @See CVSDataProvider::GetColorTone for description. |
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223 */ |
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224 virtual TInt GetColorTone( |
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225 CCamera::CCameraImageProcessing::TEffect& aColorTone) const; |
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226 |
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227 /** |
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228 * @See CVSDataProvider::SetColorToneL for description. |
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229 */ |
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230 virtual void SetColorToneL( |
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231 CCamera::CCameraImageProcessing::TEffect aValue ); |
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232 |
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233 protected: // New functions |
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234 |
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235 protected: // Functions from base classes |
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236 |
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237 private: // New functions |
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238 |
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239 /** |
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240 * See CVSDataProvider for description. |
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241 */ |
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242 void PrimeL(); |
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243 |
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244 private: |
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245 |
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246 private: // Functions from base classes |
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247 |
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248 /** |
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249 * See MDataSource for description. |
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250 */ |
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251 virtual void FillBufferL( |
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252 CMMFBuffer* aBuffer, |
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253 MVTVideoSink* aConsumer, |
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254 TMediaId aMediaId ); |
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255 |
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256 private: |
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257 |
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258 /** |
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259 * See MDataSource for description. |
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260 */ |
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261 virtual void BufferEmptiedL( CMMFBuffer* aBuffer ); |
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262 |
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263 /** |
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264 * See MDataSource for description. |
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265 */ |
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266 virtual TInt SourceThreadLogon( MAsyncEventHandler& aEventHandler ); |
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267 |
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268 /** |
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269 * See MDataSource for description. |
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270 */ |
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271 virtual void SourceThreadLogoff(); |
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272 |
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273 /** |
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274 * See MDataSource for description. |
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275 */ |
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276 virtual void SourcePrimeL(); |
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277 |
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278 /** |
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279 * See MDataSource for description. |
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280 */ |
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281 virtual void SourcePlayL(); |
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282 |
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283 /** |
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284 * See MDataSource for description. |
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285 */ |
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286 virtual void SourcePauseL(); |
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287 |
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288 /** |
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289 * See MDataSource for description. |
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290 */ |
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291 virtual void SourceStopL(); |
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292 |
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293 private: // Functions from base classes |
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294 |
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295 /** |
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296 * See MVTVideoInput for description. |
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297 */ |
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298 virtual void SetFormatL( const TDesC8& aFormat ); |
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299 |
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300 /** |
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301 * See MVTVideoInput for description. |
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302 */ |
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303 virtual void SetFrameRateL( TReal32 aFrameRate ); |
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304 |
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305 /** |
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306 * See MVTVideoInput for description. |
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307 */ |
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308 virtual void SetVideoFrameSizeL( const TSize& aSize ); |
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309 |
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310 /** |
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311 * See MVTVideoInput for description. |
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312 */ |
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313 virtual void GetVideoFrameSizeL( TSize& aSize ) const; |
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314 |
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315 private: // New functions |
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316 |
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317 /** |
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318 * Common initialization of the provider (initializes features |
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319 * that are always needed by the provider). |
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320 * @exception Can leave with one of the system wide error codes. |
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321 */ |
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322 void CommonInitializeL(); |
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323 |
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324 /** |
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325 * Undo common initialization of still image data provider. |
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326 */ |
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327 void UndoCommonInitialized(); |
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328 |
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329 /** |
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330 * Loads image that was set in General Settings application. |
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331 * @param aType Type of of the general settings image. |
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332 * @exception Can leave with one of the system wide error codes. |
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333 */ |
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334 void GeneralSettingsInitializeL( const TGeneralSettingsImageType aType ); |
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335 |
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336 /** |
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337 * Initializes this instance as blank image instance. |
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338 * @exception Can leave with one of the system wide error codes. |
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339 */ |
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340 void BlankImageInitializeL(); |
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341 |
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342 /** |
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343 * Initializes this instance from image file. |
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344 * @param aFileName Name of the file from which this intance will be |
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345 * initialized. |
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346 * @exception Can leave with one of the system wide error codes. |
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347 */ |
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348 void FileImageInitializeL( const TFileName& aFileName ); |
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349 |
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350 /** |
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351 * View finder timer callback. This method is called when view finder |
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352 * needs updating. |
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353 */ |
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354 void VFTimer(); |
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355 |
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356 /** |
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357 * protocol timer callback. This method is called when new frame |
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358 * will be sent to consumer. |
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359 */ |
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360 void ProtoTimer(); |
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361 |
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362 /** |
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363 * Method for creating timer for protocol. This method is called |
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364 * in Proto thread context. |
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365 * @exception Can leave with one of the system wide error codes. |
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366 */ |
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367 void CreateProtoTimerL(); |
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368 |
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369 /** |
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370 * Releases protocol timer. This method is called in Protocol thread |
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371 * context. |
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372 */ |
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373 void ReleaseProtoTimer(); |
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374 |
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375 /** |
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376 * Creates YUV buffer from still image. This method is called in Protocol |
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377 * thread context. |
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378 * @exception Can leave with one of the system wide error codes. |
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379 */ |
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380 void CreateYUVDataL(); |
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381 |
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382 /** |
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383 * Release YUV buffer. This method is called in Protocol thread context. |
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384 */ |
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385 void ReleaseYUVData(); |
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386 |
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387 private: // Constructors and destructor |
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388 |
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389 /** |
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390 * Constructor. |
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391 * @param "aObserver" Pointer to provider observer. |
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392 */ |
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393 CVSStillImageDataProvider( |
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394 MVSDataProviderObserver* aObserver, |
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395 MVSBufferPool* aPool ); |
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396 |
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397 /** |
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398 * 2nd phase constructor. |
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399 * @exception Can leave with one of the system wide error codes. |
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400 */ |
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401 void ConstructL(); |
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402 |
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403 private: // Functions from base classes |
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404 |
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405 /** |
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406 * Get video frame size. |
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407 */ |
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408 virtual void GetVideoFrameSize( |
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409 TSize& aSize, |
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410 TInt aSizeIndex, |
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411 const TDesC8& aFormat ); |
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412 |
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413 /** |
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414 * Get video frame rate. |
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415 */ |
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416 virtual void GetVideoFrameRate( |
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417 TReal32& aRate, |
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418 TInt aRateIndex, |
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419 const TDesC8& aFormat, |
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420 const TSize& aSize ); |
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421 |
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422 /** |
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423 * Returns current screen display mode. |
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424 */ |
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425 TDisplayMode DisplayMode() const; |
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426 |
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427 private: |
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428 |
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429 // from MMultiframeprovider |
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430 /** |
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431 * @See MMultiframeprovider for description. |
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432 */ |
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433 virtual void InitializeReady(); |
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434 |
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435 /** |
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436 * @See MMultiframeprovider for description. |
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437 */ |
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438 virtual void RefreshYUVData( TImageShareDataBuffer& aYUVBitMap ); |
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439 |
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440 /** |
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441 * @See MMultiframeprovider for description. |
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442 */ |
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443 virtual void RefreshViewFinder( TImageShareDataBuffer& aVFBitMap ); |
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444 |
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445 /** |
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446 * @See MMultiframeprovider for description. |
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447 */ |
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448 virtual void NotifyImageHandlingError( TInt aError ); |
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449 |
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450 public: // Data |
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451 |
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452 protected: // Data |
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453 RCriticalSection iFreezeCS; |
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454 private: // Data |
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455 |
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456 // Provider state |
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457 enum TProviderState |
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458 { |
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459 EPSUninitialized, // Provider is uninitialized |
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460 EPSStopped, // Provider is initialized and stopped |
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461 EPSPrimed, // Provider is initialized and ready for playing |
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462 EPSPlaying, // Provider is playing |
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463 EPSInitializing, // Provider is initializing |
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464 EPSUndoInitializing // Provider is undoinitializing |
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465 }; |
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466 |
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467 // Provider state |
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468 TProviderState iPSState; |
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469 |
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470 // View finder state |
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471 enum TViewFinderState |
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472 { |
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473 EVFStopped, // View finder is not started |
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474 EVFPlaying // View finder started |
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475 }; |
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476 |
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477 // View finder state |
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478 TViewFinderState iVFState; |
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479 |
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480 // Source bitmap's name |
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481 TFileName iBitmapFileName; |
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482 |
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483 // Pointer to view finder timer instance |
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484 CVSFrameRateTimer* iVFTimer; // owned |
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485 |
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486 // Pointer to protocol timer instance |
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487 CVSFrameRateTimer* iProtoTimer; // owned, created in Proto thread context! |
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488 |
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489 // Target image for CVtImageScaler |
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490 CVtImageBitmap* iScaled; |
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491 CVtImageBitmap* iYUVBitMap; |
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492 |
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493 // Pointer to selected view finder image |
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494 CVtImageBitmap* iVFCurrent; |
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495 CVtImageBitmap* iVFBitmap; |
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496 |
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497 // Pointer to active waiter instance |
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498 CVSActiveWait< CVSStillImageDataProvider >* iActiveWait; // owned |
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499 |
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500 // Heap descriptor pointer that contains image as YUV |
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501 HBufC8* iYUVBuffer; // owned, created in Protocol thread context! |
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502 |
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503 // Frame counter |
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504 TUint32 iFrameCount; |
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505 |
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506 // protocol timer update rate |
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507 TInt iProtoUpdateRate; |
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508 |
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509 // Rescaling recuirement flag |
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510 TBool iVFRescalingRequired; |
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511 |
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512 // FireServer session instance |
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513 RFs iFs; |
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514 |
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515 // Current display mode |
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516 TDisplayMode iDisplayMode; |
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517 |
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518 // Viewer instance |
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519 CMultiframeProvider* iViewer; //owned |
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520 |
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521 // Traget VF size |
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522 TSize iTargetSize; |
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523 |
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524 //Record TVSStillImageDataProviderParams::iInitialize in InitializeL(), |
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525 //used in CancelInitializing call |
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526 TVSStillImageDataProviderParams::TInitialize iInitType; |
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527 |
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528 }; |
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529 |
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530 #endif // CVSSTILLIMTAGEDATAPROVIDER_H |
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531 |
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532 // End of File |