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1 /* |
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2 * Copyright (c) 2010 ISB. |
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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 "Symbian Foundation 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.symbianfoundation.org/legal/sfl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * ISB - Initial contribution |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 #ifndef ECAMWEBCAMERAPLUGIN_H |
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19 #define ECAMWEBCAMERAPLUGIN_H |
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20 |
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21 #include <w32std.h> |
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22 #include <bitdev.h> |
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23 #include <ecam/ecamplugin.h> |
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24 #include <ecam/ecaminfoplugin.h> |
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25 #include <webcamera_driver.h> |
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26 |
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27 |
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28 class CWebCameraBuffer; |
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29 class CWebCameraActive; |
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30 class CWebCameraVfActive; |
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31 class CWebCameraAdvSet; |
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32 |
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33 /** Min of Camera Zoom */ |
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34 const TInt KMinTestCameraZoom = -3; |
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35 /** Max of Camera Zoom */ |
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36 const TInt KMaxTestCameraZoom = 3; |
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37 /** Max of Camera Digital Zoom Factor */ |
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38 const TReal32 KMaxTestCameraDigitalZoomFactor = 1.0; |
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39 /** Max of Camera Digital Zoom */ |
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40 const TInt KMaxTestCameraDigitalZoom = 0; |
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41 /** Size of Viewfinder buffer, Capture buffer */ |
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42 const TInt KMaxBufSize = 1024 * 100; |
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43 |
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44 |
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45 // Callback Class of WebCameraActive |
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46 class MWebCameraActiveCallBack |
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47 { |
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48 public: |
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49 virtual void ReserveCallBack(TInt aError) = 0; |
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50 virtual void PowerOnCallBack(TInt aError) = 0; |
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51 virtual void ImageCaptureCallBackL(TInt aError) = 0; |
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52 }; |
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53 |
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54 // Callback Class of WebCameraVfActive |
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55 class MWebCameraVfActiveCallBack |
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56 { |
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57 public: |
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58 virtual void ViewFinderCallBack(TInt aError) = 0; |
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59 }; |
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60 |
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61 /** |
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62 * Perform WebCamera function. |
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63 */ |
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64 class CWebCamera : public CCameraPlugin |
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65 , public MWebCameraActiveCallBack |
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66 , public MWebCameraVfActiveCallBack |
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67 { |
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68 public: |
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69 static CWebCamera* NewL(); |
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70 ~CWebCamera(); |
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71 |
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72 protected: |
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73 |
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74 //from CCameraPlugin |
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75 /** |
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76 from CCameraPlugin |
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77 |
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78 A call to one of the factory functions firstly loads the plugin, followed by a |
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79 call to this function to complete construction. |
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80 |
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81 Creates an object representing a camera. |
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82 |
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83 @param aObserver |
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84 Reference to class derived from MCameraObserver2 designed to receive |
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85 notification of asynchronous event completion. |
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86 @param aCameraIndex |
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87 Index from 0 to CamerasAvailable()-1 inclusive specifying the |
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88 camera device to use. |
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89 @return Pointer to a fully constructed CCamera object. Ownership is passed |
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90 to the caller. |
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91 |
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92 @leave May leave with KErrNoMemory or KErrNotSupported if aCameraIndex is |
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93 out of range. |
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94 */ |
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95 void Construct2L(MCameraObserver& aObserver,TInt aCameraIndex); |
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96 |
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97 /** |
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98 from CCameraPlugin |
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99 |
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100 A call to one of the factory functions firstly loads the plugin, followed by a |
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101 call to this function to complete construction. |
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102 |
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103 Duplicates the original camera object for use by, for example, multimedia systems. |
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104 |
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105 May leave with KErrNoMemory or KErrNotFound if aCameraHandle is not valid. |
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106 |
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107 @param aObserver |
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108 Reference to an observer. |
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109 @param aCameraHandle Handle of an existing camera object. |
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110 |
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111 @return Duplicate of the original camera object. |
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112 */ |
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113 void Construct2DupL(MCameraObserver& aObserver,TInt aCameraHandle); |
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114 |
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115 /** |
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116 from CCameraPlugin |
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117 |
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118 A call to one of the factory functions firstly loads the plugin, followed by a |
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119 call to this function to complete construction. |
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120 |
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121 Creates an object representing a camera. |
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122 |
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123 @param aObserver |
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124 Reference to class derived from MCameraObserver2 designed to receive |
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125 notification of asynchronous event completion. |
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126 @param aCameraIndex |
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127 Index from 0 to CamerasAvailable()-1 inclusive specifying the |
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128 camera device to use. |
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129 @param aPriority |
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130 Value from -100 to 100 indicating relative priority of client to |
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131 use camera. |
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132 |
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133 @return Pointer to a fully constructed CCamera object. Ownership is passed |
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134 to the caller. |
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135 |
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136 @leave May leave with KErrNoMemory or KErrNotSupported if aCameraIndex is |
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137 out of range. |
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138 */ |
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139 void Construct2L(MCameraObserver2& aObserver,TInt aCameraIndex,TInt aPriority); |
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140 |
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141 /** |
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142 from CCameraPlugin |
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143 |
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144 Duplicates the original camera object for use by, for example, multimedia systems. |
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145 |
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146 @leave KErrNoMemory if out of memory. |
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147 @leave KErrNotFound if aCameraHandle is not valid. |
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148 @leave KErrPermissionDenied if the application does not have |
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149 the UserEnvironment capability. |
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150 |
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151 @param aObserver |
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152 Reference to an observer. |
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153 @param aCameraHandle Handle of an existing camera object. |
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154 |
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155 @return Duplicate of the original camera object. |
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156 |
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157 @capability UserEnvironment |
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158 An application that creates a CCamera object must have |
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159 the UserEnvironment capability. |
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160 |
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161 @note Applications using this method to create camera object may not receive enums/uids added in future(after being baselined). |
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162 To receive them, they should rather use New2L() or NewDuplicate2L(), in which case, they should prepare |
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163 themselves to receive unrecognised values. |
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164 */ |
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165 void Construct2DupL(MCameraObserver2& aObserver,TInt aCameraHandle); |
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166 |
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167 // from CCamera |
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168 /** |
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169 from CCamera |
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170 |
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171 Gets information about the camera device. |
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172 |
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173 @param aInfo |
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174 On return, information about the camera device. See TCameraInfo. |
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175 */ |
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176 void CameraInfo(TCameraInfo& aInfo) const; |
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177 |
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178 /** |
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179 from CCamera |
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180 |
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181 Asynchronous function that performs any required initialisation and reserves |
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182 the camera for exclusive use. |
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183 |
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184 Calls MCameraObserver:: ReserveComplete() when complete. |
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185 */ |
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186 void Reserve(); |
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187 |
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188 /** |
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189 from CCamera |
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190 |
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191 De-initialises the camera, allowing it to be used by other clients. |
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192 */ |
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193 void Release(); |
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194 |
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195 |
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196 /** |
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197 from CCamera |
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198 |
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199 Asynchronous method to switch on camera power. |
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200 |
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201 User must have successfully called Reserve() prior to calling this function. |
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202 |
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203 Calls MCameraObserver::PowerOnComplete() when power on is complete. |
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204 */ |
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205 void PowerOn(); |
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206 |
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207 /** |
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208 from CCamera |
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209 |
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210 Synchronous function for switching off camera power. |
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211 */ |
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212 void PowerOff(); |
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213 |
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214 |
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215 /** |
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216 from CCamera |
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217 |
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218 Gets the device-unique handle of this camera object. |
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219 |
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220 @return The device-unique handle of this camera object. |
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221 */ |
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222 TInt Handle(); |
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223 |
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224 |
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225 /** |
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226 from CCamera |
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227 |
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228 Sets the zoom factor. |
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229 |
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230 This must be in the range of TCameraInfo::iMinZoom to TCameraInfo::iMaxZoom |
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231 inclusive. May leave with KErrNotSupported if the specified zoom factor is |
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232 out of range. |
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233 |
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234 @param aZoomFactor |
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235 Required zoom factor. |
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236 */ |
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237 void SetZoomFactorL(TInt aZoomFactor = 0); |
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238 |
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239 |
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240 /** |
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241 from CCamera |
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242 |
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243 Gets the currently set zoom factor. |
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244 |
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245 @return The currently set zoom factor. |
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246 */ |
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247 TInt ZoomFactor() const; |
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248 |
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249 /** |
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250 from CCamera |
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251 |
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252 Sets the digital zoom factor. |
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253 |
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254 This must be in the range of 0 to TCameraInfo::iMaxDigitalZoom inclusive. |
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255 |
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256 May leave with KErrNotSupported if the zoom factor is out of range. |
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257 |
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258 @param aDigitalZoomFactor |
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259 The required digital zoom factor. |
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260 */ |
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261 void SetDigitalZoomFactorL(TInt aDigitalZoomFactor = 0); |
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262 |
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263 |
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264 /** |
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265 from CCamera |
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266 |
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267 Gets the currently set digital zoom factor. |
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268 |
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269 @return The currently set digital zoom factor. |
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270 */ |
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271 TInt DigitalZoomFactor() const; |
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272 |
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273 |
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274 /** |
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275 from CCamera |
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276 |
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277 Sets the contrast adjustment of the device. |
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278 |
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279 This must be in the range of -100 to +100 or EContrastAuto. May leave with |
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280 KErrNotSupported if the specified contrast value is out of range. |
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281 |
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282 @param aContrast |
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283 Required contrast value. See TCameraInfo::iContrastSupported |
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284 */ |
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285 void SetContrastL(TInt aContrast); |
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286 |
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287 |
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288 /** |
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289 from CCamera |
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290 |
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291 Gets the currently set contrast value. |
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292 |
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293 @return The currently set contrast value. |
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294 */ |
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295 TInt Contrast() const; |
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296 |
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297 /** |
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298 from CCamera |
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299 |
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300 Sets the brightness adjustment of the device. |
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301 |
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302 No effect if this is not supported, see TCameraInfo::iBrightnessSupported. |
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303 |
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304 This must be in the range of -100 to +100 or EBrightnessAuto. May leave |
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305 with KErrNotSupported if the brightness adjustment is out of range. |
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306 |
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307 @param aBrightness |
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308 The required brightness adjustment. |
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309 */ |
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310 void SetBrightnessL(TInt aBrightness); |
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311 |
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312 /** |
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313 from CCamera |
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314 |
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315 Gets the currently set brightness adjustment value. |
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316 |
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317 @return The currently set brightness adjustment value. |
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318 */ |
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319 TInt Brightness() const; |
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320 |
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321 /** |
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322 from CCamera |
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323 |
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324 Sets the flash mode. |
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325 |
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326 No effect if this is not supported, see TCameraInfo::iFlashModesSupported. |
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327 |
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328 May leave with KErrNotSupported if the specified flash mode is invalid. |
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329 |
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330 @param aFlash |
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331 The required flash mode. |
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332 */ |
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333 void SetFlashL(TFlash aFlash = EFlashNone); |
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334 |
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335 /** |
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336 from CCamera |
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337 |
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338 Gets the currently set flash mode. |
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339 |
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340 @return The currently set flash mode. |
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341 @note if CCamera::New2L() or CCamera::NewDuplicate2L() is not used to create CCamera object, it is assumed that |
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342 application is not prepared to receive extra added enum values (unrecognised). So, any extra enum value(unrecognised) |
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343 (set in the ECAM implementation because of sharing clients) should not be returned from the ECAM implementation. |
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344 To receive extra added enum values, application should rather use CCamera::New2L() or CCamera::NewDuplicate2L() |
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345 to create camera object. ECAM implementation, after verifying this,(by checking version no.) may send new values, if set. |
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346 In this case, application is assumed to be prepared to receive unrecognised enum values. |
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347 |
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348 @see CCamera::CCameraAdvancedSettings::FlashMode() |
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349 */ |
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350 TFlash Flash() const; |
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351 |
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352 /** |
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353 from CCamera |
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354 |
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355 Sets the exposure adjustment of the device. |
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356 |
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357 No effect if this is not supported, see CameraInfo::iExposureModesSupported. |
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358 |
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359 May leave with KErrNotSupported if the specified exposure adjustment is invalid. |
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360 |
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361 @param aExposure |
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362 The required exposure adjustment. |
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363 */ |
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364 void SetExposureL(TExposure aExposure = EExposureAuto); |
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365 |
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366 /** |
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367 from CCamera |
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368 |
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369 Gets the currently set exposure setting value. |
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370 |
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371 @return The currently set exposure setting value. |
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372 */ |
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373 TExposure Exposure() const; |
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374 |
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375 /** |
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376 from CCamera |
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377 |
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378 Sets the white balance adjustment of the device. |
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379 |
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380 No effect if this is not supported, see TCameraInfo::iWhiteBalanceModesSupported. |
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381 |
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382 @param aWhiteBalance |
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383 The required white balance adjustment. |
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384 |
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385 @leave KErrNotSupported if the specified white balance adjustment |
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386 is invalid. |
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387 */ |
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388 void SetWhiteBalanceL(TWhiteBalance aWhiteBalance = EWBAuto); |
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389 |
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390 /** |
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391 from CCamera |
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392 |
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393 Gets the currently set white balance adjustment value. |
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394 |
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395 @return The currently set white balance adjustment value. |
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396 |
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397 @note if CCamera::New2L() or CCamera::NewDuplicate2L() is not used to create CCamera object, it is assumed that |
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398 application is not prepared to receive extra added enum values (unrecognised). So, any extra enum value(unrecognised) |
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399 (set in the ECAM implementation because of sharing clients) should not be returned from the ECAM implementation. |
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400 To receive extra added enum values, application should rather use CCamera::New2L() or CCamera::NewDuplicate2L() |
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401 to create camera object. ECAM implementation, after verifying this,(by checking version no.) may send new values, if set. |
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402 In this case, application is assumed to be prepared to receive unrecognised enum values. |
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403 Refer CCamera::CCameraAdvancedSettings::WhiteBalanceMode() implementation |
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404 |
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405 @see CCamera::CCameraAdvancedSettings::WhiteBalanceMode() |
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406 */ |
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407 TWhiteBalance WhiteBalance() const; |
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408 |
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409 /** |
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410 from CCamera |
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411 |
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412 Starts transfer of view finder data to the given portion of the screen using |
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413 direct screen access. |
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414 |
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415 The aScreenRect parameter is in screen co-ordinates and may be modified if, |
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416 eg, the camera requires the destination to have a certain byte alignment, etc. |
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417 |
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418 @param aWs |
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419 Window server session. |
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420 @param aScreenDevice |
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421 Screen device. |
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422 @param aWindow |
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423 Displayable window. |
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424 @param aScreenRect |
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425 Portion of the screen to which view finder data is to be |
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426 transferred. This is in screen co-ordinates and may be modified if, for example, |
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427 the camera requires the destination to have a certain byte alignment. |
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428 |
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429 @leave KErrNotReady if PowerOn() has either not |
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430 been called, or has not yet completed. |
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431 |
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432 @note This method is assumed to be meant for default display only. KECamDefaultViewFinderHandle should be used to |
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433 refer viewfinders started using CCamera methods. |
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434 |
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435 @see CCamera::CCameraV2DirectViewFinder |
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436 */ |
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437 void StartViewFinderDirectL(RWsSession& aWs,CWsScreenDevice& aScreenDevice,RWindowBase& aWindow,TRect& aScreenRect); |
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438 |
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439 /** |
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440 from CCamera |
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441 |
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442 Starts transfer of view finder data to the given portion of the screen using |
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443 direct screen access and also clips to the specified portion of the screen. |
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444 |
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445 The view finder has the same size and position as aScreenRect but is only |
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446 visible in the intersection of aScreenRect and aClipRect. May leave with KErrNotSupported |
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447 or KErrNotReady if Reserve() has not been called, or has not yet completed. |
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448 |
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449 @param aWs |
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450 Window server session. |
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451 @param aScreenDevice |
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452 Screen device. |
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453 @param aWindow |
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454 Displayable window. |
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455 @param aScreenRect |
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456 Portion of the screen to which view finder data is to be |
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457 transferred. This is in screen co-ordinates and may be modified if, for example, |
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458 the camera requires the destination to have a certain byte alignment. |
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459 @param aClipRect |
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460 The rectangle to which the screen will be clipped. |
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461 |
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462 @leave KErrNotReady if PowerOn() hasn't been called successfully. |
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463 |
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464 @note This method is assumed to be meant for default display only. KECamDefaultViewFinderHandle should be used to |
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465 refer viewfinders started using CCamera methods. |
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466 |
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467 @see CCamera::CCameraClientViewFinder |
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468 */ |
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469 void StartViewFinderDirectL(RWsSession& aWs,CWsScreenDevice& aScreenDevice,RWindowBase& aWindow,TRect& aScreenRect,TRect& aClipRect); |
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470 |
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471 /** |
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472 from CCamera |
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473 |
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474 Starts transfer of view finder data. |
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475 |
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476 Bitmaps are returned by MCameraObserver::ViewFinderFrameReady(). |
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477 |
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478 @param aSize |
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479 On return, the size used. |
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480 @leave KErrNotReady if PowerOn() has not been called, or has not yet completed. |
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481 |
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482 @note This method is assumed to be meant for default display only. |
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483 |
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484 @see CCamera::CCameraClientViewFinder |
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485 */ |
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486 void StartViewFinderBitmapsL(TSize& aSize); |
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487 |
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488 /** |
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489 from CCamera |
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490 |
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491 Starts transfer of view finder data and clips the bitmap to the specified clip |
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492 rectangle. |
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493 |
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494 The bitmap is the size of the intersection of aSize and aClipRect, not simply |
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495 aSize padded with white space. |
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496 |
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497 @param aSize |
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498 On return, the size used. |
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499 @param aClipRect |
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500 Required clip rectangle. May be modified if, for example, |
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501 the camera only supports certain byte alignments. |
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502 |
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503 @leave KErrInUse if Reserve() hasn't been called successfully. |
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504 @leave KErrNotReady if PowerOn() hasn't been called successfully. |
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505 |
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506 @note This method is assumed to be meant for default display only. |
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507 |
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508 @see CCamera::CCameraClientViewFinder |
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509 */ |
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510 void StartViewFinderBitmapsL(TSize& aSize,TRect& aClipRect); |
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511 |
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512 /** |
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513 from CCamera |
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514 |
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515 Starts transfer of view finder data. |
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516 |
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517 Picture data is returned by MCameraObserver2::ViewFinderReady(). |
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518 |
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519 @param aImageFormat |
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520 The image format requested by the client. |
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521 @param aSize |
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522 On return, the size used. |
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523 @leave KErrNotSupported |
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524 @leave KErrNotReady if Reserve() has not been |
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525 called, or has not yet completed. |
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526 |
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527 @note This method is assumed to be meant for default display only. KECamDefaultViewFinderHandle should be used to |
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528 refer viewfinders started using CCamera methods. |
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529 |
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530 @see CCamera::CCameraClientViewFinder |
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531 */ |
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532 void StartViewFinderL(TFormat aImageFormat,TSize& aSize); |
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533 |
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534 /** |
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535 from CCamera |
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536 |
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537 Starts transfer of view finder data and clips the picture to the specified clip |
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538 rectangle. Picture data is returned by MCameraObserver2::ViewFinderReady(). |
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539 |
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540 The picture is the size of the intersection of aSize and aClipRect, not simply |
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541 aSize padded with white space. |
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542 |
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543 @param aImageFormat |
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544 The image format. |
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545 @param aSize |
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546 On return, the size used. |
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547 @param aClipRect |
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548 Required clip rectangle. May be modified if, for example, |
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549 the camera only supports certain byte alignments. |
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550 |
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551 @leave KErrInUse if Reserve() hasn't been called successfully, |
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552 @leave KErrNotReady if PowerOn() hasn't been called successfully. |
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553 |
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554 @note This method is assumed to be meant for default display only. KECamDefaultViewFinderHandle should be used to |
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555 refer viewfinders started using CCamera methods. |
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556 |
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557 @see CCamera::CCameraClientViewFinder |
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558 */ |
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559 void StartViewFinderL(TFormat aImageFormat,TSize& aSize,TRect& aClipRect); |
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560 |
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561 /** |
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562 Stops transfer of view finder data to the screen. |
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563 |
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564 @note This method is assumed to be meant for default display only. KECamDefaultViewFinderHandle should be used to |
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565 refer viewfinders started using CCamera methods. |
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566 |
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567 @see CCamera::CCameraV2DirectViewFinder |
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568 @see CCamera::CCameraClientViewFinder |
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569 */ |
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570 void StopViewFinder(); |
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571 |
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572 /** |
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573 from CCamera |
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574 |
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575 Queries whether the view finder is active. |
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576 |
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577 @return ETrue if the view finder is active. EFalse if the view finder is not |
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578 active. |
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579 |
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580 @note This method is assumed to be meant for default display only. KECamDefaultViewFinderHandle should be used to |
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581 refer viewfinders started using CCamera methods. |
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582 |
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583 @see CCamera::CCameraV2DirectViewFinder |
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584 @see CCamera::CCameraClientViewFinder |
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585 */ |
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586 TBool ViewFinderActive() const; |
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587 |
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588 /** |
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589 from CCamera |
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590 |
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591 Sets whether view finder mirroring is on. |
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592 |
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593 Used to switch between what the camera sees and what you would see if the |
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594 device were a mirror. |
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595 |
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596 @param aMirror |
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597 ETrue to set mirroring on, EFalse to set mirroring off. |
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598 |
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599 @leave KErrNotSupported. |
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600 |
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601 @note This method is assumed to be meant for default display only. KECamDefaultViewFinderHandle should be used to |
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602 refer viewfinders started using CCamera methods. |
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603 |
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604 @see CCamera::CCameraV2DirectViewFinder |
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605 @see CCamera::CCameraClientViewFinder |
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606 */ |
|
607 void SetViewFinderMirrorL(TBool aMirror); |
|
608 |
|
609 /** |
|
610 from CCamera |
|
611 |
|
612 Gets whether view finder mirroring is active. |
|
613 |
|
614 @return ETrue if mirroring is set, EFalse if mirroring is not set. |
|
615 |
|
616 @note This method is assumed to be meant for default display only. KECamDefaultViewFinderHandle should be used to |
|
617 refer viewfinders started using CCamera methods. |
|
618 |
|
619 @see CCamera::CCameraV2DirectViewFinder |
|
620 @see CCamera::CCameraClientViewFinder |
|
621 */ |
|
622 TBool ViewFinderMirror() const; |
|
623 |
|
624 /** |
|
625 from CCamera |
|
626 |
|
627 Performs setup and allocation of memory. |
|
628 |
|
629 Called prior to calling CaptureImage() to keep the latency of that function |
|
630 to a minimum. |
|
631 |
|
632 Needs to be called only once for multiple CaptureImage() calls. May leave |
|
633 with KErrNotSupported or KErrNoMemory or KErrInUse or KErrNotReady. |
|
634 |
|
635 The specified image format must be one of the formats supported |
|
636 (see TCameraInfo::iImageFormatsSupported). |
|
637 |
|
638 The specified size index must be in the range of 0 to TCameraInfo::iNumImageSizesSupported-1 |
|
639 inclusive. |
|
640 |
|
641 @param aImageFormat |
|
642 The image format. |
|
643 @param aSizeIndex |
|
644 Size index. |
|
645 |
|
646 @leave KErrNotSupported |
|
647 @leave KErrNoMemory |
|
648 @leave KErrNotReady if PowerOn() hasn't been called successfully. |
|
649 |
|
650 @see CCamera::CCameraPreImageCaptureControl::PrepareImageCapture(TPrepareImageParameters aPrepareImageParameters) |
|
651 */ |
|
652 void PrepareImageCaptureL(TFormat aImageFormat,TInt aSizeIndex); |
|
653 |
|
654 /** |
|
655 from CCamera |
|
656 |
|
657 Performs setup and allocation of memory and clips the image to the specified |
|
658 rectangle. |
|
659 |
|
660 No effect unless TCameraInfo::iImageClippingSupported is set to ETrue. The |
|
661 image captured is the intersection of aClipRect and the rectangle from (0,0) |
|
662 to aSize. Needs to be called only once for multiple CaptureImage() calls. |
|
663 May leave with KErrNotSupported or KErrNoMemory. |
|
664 |
|
665 The specified image format must be one of the formats supported (see TCameraInfo::iImageFormatsSupported). |
|
666 |
|
667 The specified size index must be in the range of 0 to TCameraInfo::iNumImageSizesSupported-1 |
|
668 inclusive. |
|
669 |
|
670 @param aImageFormat |
|
671 The image format. |
|
672 @param aSizeIndex |
|
673 Size index. |
|
674 @param aClipRect |
|
675 The rectangle to which the image is to be clipped. |
|
676 |
|
677 @leave KErrNotSupported |
|
678 @leave KErrNoMemory |
|
679 @leave KErrInUse if Reserve() hasn't been called successfully |
|
680 @leave KErrNotReady if PowerOn() |
|
681 hasn't been called successfully. |
|
682 |
|
683 @see CCamera::CCameraPreImageCaptureControl::PrepareImageCapture(TPrepareImageParameters aPrepareImageParameters) |
|
684 */ |
|
685 void PrepareImageCaptureL(TFormat aImageFormat,TInt aSizeIndex,const TRect& aClipRect); |
|
686 |
|
687 /** |
|
688 from CCamera |
|
689 |
|
690 Asynchronously performs still image capture. |
|
691 |
|
692 Calls MCameraObserver::ImageReady() when complete. |
|
693 |
|
694 @see CCamera::CCameraImageCapture |
|
695 @see CCamera::CCameraPreImageCaptureControl |
|
696 */ |
|
697 void CaptureImage(); |
|
698 |
|
699 /** |
|
700 from CCamera |
|
701 |
|
702 Cancels the asynchronous still image capture. |
|
703 |
|
704 @see CCamera::CCameraImageCapture |
|
705 */ |
|
706 void CancelCaptureImage(); |
|
707 |
|
708 /** |
|
709 from CCamera |
|
710 |
|
711 Enumerates through the available image capture sizes, based on the specified |
|
712 size index and format |
|
713 |
|
714 The size index must be in the range 0 to TCameraInfo::iNumImageSizesSupported-1 |
|
715 inclusive. |
|
716 |
|
717 @param aSize |
|
718 Image size. |
|
719 @param aSizeIndex |
|
720 Size index. |
|
721 @param aFormat |
|
722 The image format. |
|
723 */ |
|
724 void EnumerateCaptureSizes(TSize& aSize,TInt aSizeIndex,TFormat aFormat) const; |
|
725 |
|
726 /** |
|
727 from CCamera |
|
728 |
|
729 Prepares for video capture. |
|
730 |
|
731 Performs setup and allocation of memory prior to calling StartVideoCapture() |
|
732 to keep the latency of that function to a minimum. |
|
733 |
|
734 May leave with KErrNotSupported or KErrNoMemory. |
|
735 |
|
736 @param aFormat |
|
737 Format must be one of the video frame formats supported (see |
|
738 TCameraInfo::iVideoFrameFormatsSupported). |
|
739 @param aSizeIndex |
|
740 Size index must be in the range 0 to TCameraInfo::iNumVideoFrameSizesSupported-1 |
|
741 inclusive. |
|
742 @param aRateIndex |
|
743 The rate must be in the range 0 to TCameraInfo::iNumVideoFrameRatesSupported-1 |
|
744 inclusive. |
|
745 @param aBuffersToUse |
|
746 The number of discrete buffers to use. |
|
747 @param aFramesPerBuffer |
|
748 How large the buffers are to be. Must be less than |
|
749 or equal to TCameraInfo::iMaxFramesPerBufferSupported. One buffer is returned |
|
750 to MCameraObserver::FrameBufferReady() at a time. |
|
751 |
|
752 @leave May leave with KErrNotSupported, KErrNoMemory, or KErrNotReady if PowerOn() |
|
753 hasn't been called successfully. |
|
754 |
|
755 @see CCamera::CCameraVideoCaptureControl::PrepareVideoCapture(const TPrepareVideoParameters& aPrepareVideoParameters) |
|
756 */ |
|
757 void PrepareVideoCaptureL(TFormat aFormat,TInt aSizeIndex,TInt aRateIndex,TInt aBuffersToUse,TInt aFramesPerBuffer); |
|
758 |
|
759 /** |
|
760 from CCamera |
|
761 |
|
762 Prepares for video capture and clips the frames to the given rectangle. |
|
763 |
|
764 Performs setup and allocation of memory prior to calling StartVideoCapture() |
|
765 to keep the latency of that function to a minimum. |
|
766 |
|
767 May leave with KErrNotSupported or KErrNoMemory. |
|
768 |
|
769 @param aFormat |
|
770 Format must be one of the video frame formats supported (see |
|
771 TCameraInfo::iVideoFrameFormatsSupported). |
|
772 @param aSizeIndex |
|
773 Size index must be in the range 0 to TCameraInfo::iNumVideoFrameSizesSupported-1 |
|
774 inclusive. |
|
775 @param aRateIndex |
|
776 The rate must be in the range 0 to TCameraInfo::iNumVideoFrameRatesSupported-1 |
|
777 inclusive. |
|
778 @param aBuffersToUse |
|
779 The number of discrete buffers to use. |
|
780 @param aFramesPerBuffer |
|
781 How large the buffers are to be. Must be less than |
|
782 or equal to TCameraInfo::iMaxFramesPerBufferSupported. One buffer is returned |
|
783 to MCameraObserver::FrameBufferReady() at a time. |
|
784 @param aClipRect |
|
785 The rectangle to which the image is to be clipped. |
|
786 @leave KErrNotSupported |
|
787 @leave KErrNoMemory, |
|
788 @leave KErrInUse if Reserve() hasn't been called successfully |
|
789 @leave KErrNotReady if PowerOn() hasn't been called successfully. |
|
790 |
|
791 @see CCamera::CCameraVideoCaptureControl::PrepareVideoCapture(const TPrepareVideoParameters& aPrepareVideoParameters) |
|
792 */ |
|
793 void PrepareVideoCaptureL(TFormat aFormat,TInt aSizeIndex,TInt aRateIndex,TInt aBuffersToUse,TInt aFramesPerBuffer,const TRect& aClipRect); |
|
794 |
|
795 /** |
|
796 from CCamera |
|
797 |
|
798 Starts capturing video. |
|
799 |
|
800 Calls MCameraObserver::FrameBufferReady() when each buffer has been filled |
|
801 with the required number of frames, as set by PrepareVideoCaptureL(). |
|
802 */ |
|
803 void StartVideoCapture(); |
|
804 |
|
805 /** |
|
806 from CCamera |
|
807 |
|
808 Stops video capture. |
|
809 */ |
|
810 void StopVideoCapture(); |
|
811 |
|
812 /** |
|
813 from CCamera |
|
814 |
|
815 Tests whether video capture is active. |
|
816 |
|
817 @return ETrue if video capture is active. EFalse if video capture is not active |
|
818 */ |
|
819 TBool VideoCaptureActive() const; |
|
820 |
|
821 /** |
|
822 from CCamera |
|
823 |
|
824 Enumerates through the available video frame sizes, based on the specified |
|
825 size index and format. |
|
826 |
|
827 @param aSize |
|
828 On return the available video frame sizes. Sizes should be returned |
|
829 in order, largest first, so clients do not have to iterate through every one. |
|
830 @param aSizeIndex |
|
831 Size index. Must be in the range 0 to TCameraInfo::iNumVideoFrameSizesSupported-1 |
|
832 inclusive |
|
833 @param aFormat |
|
834 Image format. |
|
835 */ |
|
836 void EnumerateVideoFrameSizes(TSize& aSize,TInt aSizeIndex,TFormat aFormat) const; |
|
837 |
|
838 /** |
|
839 from CCamera |
|
840 |
|
841 Enumerates through the available video frame rates, based on the specified |
|
842 rate index, video frame format, size index and exposure mode. |
|
843 |
|
844 @param aRate |
|
845 On return, the available video frame rates. Some rates may not |
|
846 be available due to, for example, current flash mode setting. In those cases |
|
847 a rate of 0 will be returned. Rates should be returned in order, highest first, |
|
848 so clients do not have to iterate through every one. |
|
849 @param aRateIndex |
|
850 The rate index. Must be in the range 0 to TCameraInfo::iNumVideoFrameRatesSupported-1 |
|
851 inclusive. |
|
852 @param aFormat |
|
853 The format. |
|
854 @param aSizeIndex |
|
855 The size index. |
|
856 @param aExposure |
|
857 The exposure mode. |
|
858 */ |
|
859 void EnumerateVideoFrameRates(TReal32& aRate,TInt aRateIndex,TFormat aFormat,TInt aSizeIndex,TExposure aExposure = EExposureAuto) const; |
|
860 |
|
861 /** |
|
862 from CCamera |
|
863 |
|
864 Gets the frame size currently in use. |
|
865 |
|
866 @param aSize |
|
867 The frame size currently in use. |
|
868 */ |
|
869 void GetFrameSize(TSize& aSize) const; |
|
870 |
|
871 /** |
|
872 from CCamera |
|
873 |
|
874 Gets the frame rate currently in use. |
|
875 |
|
876 @return The frame rate currently in use. |
|
877 */ |
|
878 TReal32 FrameRate() const; |
|
879 |
|
880 /** |
|
881 from CCamera |
|
882 |
|
883 Gets the number of buffers currently in use. |
|
884 |
|
885 @return The number of buffers currently in use. |
|
886 */ |
|
887 TInt BuffersInUse() const; |
|
888 |
|
889 /** |
|
890 from CCamera |
|
891 |
|
892 Gets the number of frames per buffer currently in use. |
|
893 |
|
894 @return The number of frames per buffer currently in use. |
|
895 */ |
|
896 TInt FramesPerBuffer() const; |
|
897 |
|
898 /** |
|
899 from CCamera |
|
900 |
|
901 Sets the quality value to use if jpeg is a supported image for video format. |
|
902 |
|
903 Ignored if jpeg is not a supported image for video format. |
|
904 |
|
905 @param aQuality |
|
906 The quality value to use, clamped to the range 1 to 100. |
|
907 |
|
908 @see CCamera::CCameraPreImageCaptureControl::TPrepareImageParameters::iImageMaxMemorySize |
|
909 */ |
|
910 void SetJpegQuality(TInt aQuality); |
|
911 |
|
912 /** |
|
913 from CCamera |
|
914 |
|
915 Gets the currently set jpeg quality value. |
|
916 |
|
917 Returns 0 if not supported. |
|
918 |
|
919 @return The currently set jpeg quality value. |
|
920 |
|
921 @see CCamera::CCameraPreImageCaptureControl::GetImageMaxMemorySizeL(TUint& aMemorySize) |
|
922 */ |
|
923 TInt JpegQuality() const; |
|
924 |
|
925 /** |
|
926 from CCamera |
|
927 |
|
928 Gets a custom interface. The client has to cast the returned pointer |
|
929 to the appropriate type. |
|
930 |
|
931 @param aInterface |
|
932 The Uid of the particular interface function required. |
|
933 |
|
934 @return Custom interface pointer. NULL if the requested interface is not supported. |
|
935 */ |
|
936 TAny* CustomInterface(TUid aInterface); |
|
937 |
|
938 private: |
|
939 CWebCamera(); |
|
940 void ConstructL(); |
|
941 |
|
942 private: // from MWebCameraActiveCallBack |
|
943 /** |
|
944 from MWebCameraActiveCallBack |
|
945 |
|
946 CallBack function of the Reserve |
|
947 */ |
|
948 virtual void ReserveCallBack(TInt aError); |
|
949 |
|
950 /** |
|
951 from MWebCameraActiveCallBack |
|
952 |
|
953 CallBack function of the PowerOn |
|
954 */ |
|
955 virtual void PowerOnCallBack(TInt aError); |
|
956 |
|
957 /** |
|
958 from MWebCameraActiveCallBack |
|
959 |
|
960 CallBack function of the ImageCapture |
|
961 */ |
|
962 virtual void ImageCaptureCallBackL(TInt aError); |
|
963 |
|
964 private: // from MWebCameraActiveCallBack |
|
965 /** |
|
966 from MWebCameraActiveCallBack |
|
967 |
|
968 CallBack function of the ViewFinder |
|
969 */ |
|
970 virtual void ViewFinderCallBack(TInt aError); |
|
971 |
|
972 private: |
|
973 |
|
974 RWebcameraDevice iDriver; ///< Camera driver. |
|
975 MCameraObserver* iObserver; ///< The callback 'notify' party |
|
976 MCameraObserver2* iObserver2; ///< The callback 'notify' party(V2). |
|
977 CWebCameraActive* iActive; ///< For async demand. |
|
978 CWebCameraVfActive* iVfActive; ///< For viewfinder. |
|
979 CWebCameraAdvSet* iAdvSettingsImpl; ///< Expansion setting class. |
|
980 |
|
981 TCameraInfo iInfo; ///< Camera Information. |
|
982 TInt iCameraIndex; ///< Camera Index. |
|
983 TInt iCameraHandle; ///< Camera handle. |
|
984 TInt iPriority; ///< priority. |
|
985 |
|
986 TBool iReserved; ///< Reserved Flag. |
|
987 TBool iPowerOn; ///< PowerOn Flag. |
|
988 TBool iImageCaptureActive;///< Flag during the still image . |
|
989 |
|
990 CWebCameraBuffer* iCaptureCameraBuf; ///< Camera buffer for capture. |
|
991 CFbsBitmap* iCaptureBitmap; ///< Bitmap Data for capture. |
|
992 HBufC8* iCaptureBuf; ///< Data buffer for capture. |
|
993 TPtr8 iCaptureBufPtr; ///< pointer to Data buffer for capture. |
|
994 |
|
995 RArray<TSize> iImageSizes; ///< Image size. |
|
996 }; |
|
997 |
|
998 |
|
999 class CWebCameraInfo : public CCameraInfoPlugin |
|
1000 { |
|
1001 public: |
|
1002 |
|
1003 /** |
|
1004 * Two-phased constructor. |
|
1005 */ |
|
1006 static CWebCameraInfo* NewL(); |
|
1007 |
|
1008 /**> Destructor */ |
|
1009 ~CWebCameraInfo(); |
|
1010 |
|
1011 // from CCameraInfoPlugin |
|
1012 public: |
|
1013 /** |
|
1014 from CCameraInfoPlugin |
|
1015 |
|
1016 Determines the number of cameras on the device. |
|
1017 |
|
1018 @return Count of cameras present on the device. |
|
1019 */ |
|
1020 TInt CamerasAvailable(); |
|
1021 |
|
1022 private: |
|
1023 CWebCameraInfo(); |
|
1024 }; |
|
1025 |
|
1026 |
|
1027 #endif // ECAMWEBCAMERAPLUGIN_H |