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1 /* |
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2 * Copyright (c) 2004-2005 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: Remote video handling class. |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 #ifndef CVTENGDRAWDP_H |
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21 #define CVTENGDRAWDP_H |
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22 |
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23 // INCLUDES |
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24 |
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25 #include "CVtEngRemoteVideo.h" |
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26 #include "TVtEngRenderConfigDP.h" |
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27 |
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28 #include <cvtimagescaler.h> |
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29 |
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30 // FORWARDS |
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31 |
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32 class TDisplaySinkParamsDP; |
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33 class CVtImageBitmap; |
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34 class CVtImageScaler; |
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35 |
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36 // CONSTANTS AND MACROS |
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37 |
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38 const TInt KVtEngMaxBuffers = 2; |
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39 |
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40 // CLASSES |
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41 |
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42 /** |
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43 * Buffer waiter observer API |
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44 * |
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45 * @lib videoteleng.lib |
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46 * @since Series 60 3.2 |
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47 */ |
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48 NONSHARABLE_CLASS( MVtEngBufferWaiterObserver ) |
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49 { |
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50 public: // New methods |
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51 |
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52 /** |
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53 * Buffer fetched without errors. |
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54 * @param aBuffer Pointer to fetched buffer. |
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55 */ |
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56 virtual void BufferReady( |
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57 CPostingSurface::TPostingBuff* aBuffer ) = 0; |
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58 |
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59 /** |
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60 * Buffer fetch error. |
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61 * @param aError Error code. |
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62 */ |
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63 virtual void FetchError( TInt aError ) = 0; |
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64 }; |
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65 |
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66 /** |
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67 * Display Posting drawer |
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68 * |
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69 * @lib videoteleng.lib |
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70 * @since Series 60 3.2 |
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71 */ |
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72 NONSHARABLE_CLASS( CVtEngDrawDP ) : public CVtEngRemoteVideo::CVtEngDraw, |
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73 public MVtEngBufferWaiterObserver, |
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74 public MVtImageScalerObserver |
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75 |
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76 { |
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77 public: // constructor and destructor |
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78 |
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79 /** |
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80 * Two-phased constructor. |
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81 * @param aObserver call back interface to Display Sink |
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82 * @return instance of CVtEngDrawDP |
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83 */ |
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84 static CVtEngDrawDP* NewL( MDisplaySinkObserver* aObserver ); |
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85 |
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86 // Destructor |
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87 ~CVtEngDrawDP(); |
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88 |
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89 private: |
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90 |
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91 /** |
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92 * C++ constructor as private. |
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93 * @param aObserver callback interface for Display Sink |
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94 */ |
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95 CVtEngDrawDP( MDisplaySinkObserver* aObserver ); |
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96 |
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97 private: // from MVtEngDraw |
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98 |
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99 /** |
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100 * @see CVtEngDraw::BaseConstructL |
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101 */ |
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102 void BaseConstructL(); |
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103 |
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104 /** |
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105 * @see CVtEngDraw::CreateSinkL |
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106 */ |
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107 MDisplaySink* CreateSinkL(); |
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108 |
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109 /** |
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110 * @see CVtEngDraw::BaseRefreshL |
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111 */ |
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112 void BaseRefreshL(); |
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113 |
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114 /** |
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115 * @see CVtEngDraw::BaseRefreshBitmapsL |
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116 */ |
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117 void BaseRefreshBitmapsL(); |
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118 |
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119 /** |
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120 * @see CVtEngDraw::BaseDoCancel |
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121 */ |
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122 void BaseDoCancel(); |
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123 |
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124 /** |
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125 * @see CVtEngDraw::BaseVerifyConfigL |
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126 */ |
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127 void BaseVerifyConfigL(); |
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128 |
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129 /** |
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130 * @see CVtEngDraw::BaseRestartL |
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131 */ |
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132 void BaseRestartL(); |
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133 |
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134 /** |
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135 * @see CVtEngDraw::BaseAbortNow |
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136 */ |
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137 void BaseAbortNow(); |
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138 |
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139 /** |
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140 * @see CVtEngDraw::BaseStartDrawL |
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141 */ |
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142 void BaseStartDrawL(); |
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143 |
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144 /** |
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145 * @see CVtEngDraw::BaseStopDraw |
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146 */ |
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147 void BaseStopDraw(); |
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148 |
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149 /** |
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150 * @see CVtEngDraw::BaseSetConfigL |
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151 */ |
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152 void BaseSetConfigL( const TVtEngRenderConfig& aConfig ); |
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153 |
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154 /** |
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155 * @see CVtEngDraw::BaseSetUIForegroundL |
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156 */ |
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157 void BaseSetUIForegroundL( TBool aForeground ); |
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158 |
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159 /** |
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160 * @see CVtEngDraw::BaseVideoFrameSizeChangedL |
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161 */ |
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162 void BaseVideoFrameSizeChangedL( const TSize& aTo ); |
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163 |
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164 /** |
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165 * @see CVtEngDraw::BaseRequestLastFrame |
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166 */ |
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167 void BaseRequestLastFrame(); |
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168 |
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169 /** |
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170 * @see CVtEngDraw::Config |
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171 */ |
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172 TVtEngRenderConfig& Config(); |
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173 |
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174 private: // new methods |
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175 |
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176 /** |
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177 * Handles all delayed calls. |
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178 */ |
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179 void HandleDelayedCallsL(); |
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180 |
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181 /** |
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182 * Base construct implementation |
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183 */ |
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184 void DoBaseConstructL(); |
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185 |
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186 /** |
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187 * Base start drawing implementation |
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188 */ |
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189 void DoBaseStartDrawL(); |
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190 |
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191 /** |
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192 * Initialize posting surface implementation |
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193 */ |
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194 void DoInitializePostingSurfaceL(); |
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195 |
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196 /** |
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197 * Update sink params implementation. |
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198 */ |
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199 void DoUpdateSinkParamsL(); |
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200 |
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201 /** |
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202 * Updates sink params. |
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203 */ |
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204 void UpdateSinkParamsL(); |
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205 |
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206 /** |
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207 * Checks if the alpha has been trashed on screen buffer (ETrue if it |
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208 * has been trashed, EFalse otherwise). |
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209 */ |
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210 TBool IsAlphaTrashed() const; |
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211 |
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212 /** |
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213 * Sets clipping region (read from DSA). |
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214 */ |
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215 void SetClipRegionL(); |
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216 |
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217 /** |
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218 * Initializes DP. |
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219 */ |
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220 void InitializePostingSurfaceL(); |
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221 |
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222 /** |
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223 * Fills posting source params structure. |
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224 */ |
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225 void GetPostingSourceParams( |
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226 CPostingSurface::TPostingSourceParams& aParams ) const; |
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227 |
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228 /** |
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229 * Fills posting params structure. |
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230 */ |
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231 void GetPostingParams( |
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232 CPostingSurface::TPostingParams& aParams ) const; |
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233 |
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234 /** |
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235 * Returns ETrue if given format is supported, EFalse otherwise. |
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236 */ |
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237 TBool SupportsFormat( |
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238 const CPostingSurface::TPostingFormat& aFormat ) const; |
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239 |
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240 /** |
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241 * Returns ETrue if given size is supported, EFalse otherwise. |
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242 */ |
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243 TBool SupportsSize( const TSize& aSize ) const; |
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244 |
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245 /** |
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246 * Returns ETrue if given rotation is supported, |
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247 * EFalse otherwise. |
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248 */ |
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249 TBool SupportsRotation( |
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250 CPostingSurface::TRotationType aRotation ) const; |
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251 |
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252 /** |
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253 * Returns ETrue if mirroring is supported, EFalse otherwise. |
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254 */ |
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255 TBool SupportsMirroring() const; |
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256 |
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257 /** |
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258 * Returns ETrue if scaling is supported, EFalse otherwise. |
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259 */ |
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260 TBool SupportsScaling() const; |
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261 |
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262 /** |
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263 * Returns ETrue if brightness controlling is supported, |
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264 * EFalse otherwise. |
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265 */ |
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266 TBool SupportsBrightness() const; |
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267 |
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268 /** |
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269 * Returns ETrue if contrast controlling is supported, |
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270 * EFalse otherwise. |
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271 */ |
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272 TBool SupportsContrast() const; |
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273 |
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274 /** |
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275 * Returns buffer size in bytes for given size and current posting |
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276 * format. |
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277 */ |
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278 TInt GetFrameBufferSize( const TSize& aTo ) const; |
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279 |
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280 /** |
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281 * Recreates clipregion. May leave with KErrNoMemory. |
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282 */ |
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283 void RecalculateClipRegionL(); |
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284 |
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285 /** |
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286 * Fixes rect for DP. |
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287 */ |
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288 void FixRectForDP( TRect& aRect ) const; |
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289 |
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290 /** |
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291 * Fills sink parameters. |
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292 */ |
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293 void GetSinkParams( TDisplaySinkParamsDP& aSinkParams ); |
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294 |
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295 /** |
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296 * Returns reference to sink. |
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297 */ |
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298 MDisplaySink& DisplaySink(); |
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299 |
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300 /** |
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301 * Stores given frame buffer. |
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302 */ |
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303 void StoreFrameBuffer( CPostingSurface::TPostingBuff* aPostingBuffer ); |
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304 |
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305 /** |
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306 * Creates frame buffer. |
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307 */ |
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308 void CreateFrameBufferL( const TSize& aSize ); |
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309 |
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310 /** |
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311 * Async draw callback. |
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312 */ |
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313 static TInt CallBack( TAny* aPtr ); |
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314 |
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315 /** |
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316 * Sets given buffer available to display sink. |
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317 */ |
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318 void SetAvailableToSink( CPostingSurface::TPostingBuff* aBuffer ); |
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319 |
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320 /** |
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321 * Creates instance of posting surface. |
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322 */ |
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323 CPostingSurface* CreatePostingSurfaceL(); |
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324 |
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325 /** |
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326 * Close the DP API library and free the allocated instance. |
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327 */ |
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328 void CloseDPLibrary(); |
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329 |
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330 /** |
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331 * Loads DP API library. |
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332 */ |
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333 void LoadDPLibraryL(); |
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334 |
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335 /** |
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336 * Converts YUV420 image to bitmap. |
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337 */ |
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338 void Convert420ToVtImg( HBufC8* aSource, CVtImageBitmap& aTarget ); |
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339 |
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340 /** |
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341 * Converts YUV422 image to bitmap. |
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342 */ |
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343 void Convert422ToVtImg( HBufC8* aSource, CVtImageBitmap& aTarget ); |
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344 |
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345 /** |
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346 * Updates Vt frame to frame observer. |
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347 */ |
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348 void UpdateVtFrame(); |
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349 |
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350 public: // From MVtImageScalerObserver. |
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351 |
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352 /** |
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353 * @ see MVtImageScalerObserver. |
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354 */ |
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355 virtual void ScalingFinished( TInt aError ); |
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356 |
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357 |
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358 private: // from CActive |
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359 |
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360 /** |
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361 * Handles prepared bitmap from display sink. |
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362 * @see CActive::RunL |
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363 */ |
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364 void RunL(); |
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365 |
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366 private: // from MVtEngBufferWaiterObserver |
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367 |
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368 /** |
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369 * @see MVtEngBufferWaiterObserver::BufferReady |
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370 */ |
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371 void BufferReady( CPostingSurface::TPostingBuff* aBuffer ); |
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372 |
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373 /** |
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374 * @see MVtEngBufferWaiterObserver::FetchError |
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375 */ |
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376 void FetchError( TInt aError ); |
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377 |
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378 private: // inner classes |
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379 |
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380 // Buffer class for storing buffer. |
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381 NONSHARABLE_CLASS( TVtEngBuffer ) |
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382 { |
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383 public: |
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384 |
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385 /** |
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386 * C++ constructor |
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387 */ |
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388 TVtEngBuffer(); |
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389 |
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390 /** |
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391 * Sets buffer |
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392 */ |
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393 void Set( CPostingSurface::TPostingBuff* aBuffer ); |
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394 |
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395 /** |
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396 * Unsets buffer |
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397 */ |
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398 void UnSet(); |
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399 |
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400 /** |
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401 * Returns ETrue if buffer is set |
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402 */ |
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403 TBool IsSet() const; |
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404 |
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405 /** |
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406 * Returns pointer reference to stored buffer. |
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407 */ |
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408 CPostingSurface::TPostingBuff*& Buffer(); |
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409 |
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410 private: |
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411 |
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412 // Pointer's pointer to buffer |
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413 CPostingSurface::TPostingBuff* iBuffer; |
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414 }; |
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415 |
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416 // Waiter class for asynchronous events. |
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417 NONSHARABLE_CLASS( CVtEngBufferWaiter ) : public CActive |
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418 { |
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419 public: |
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420 |
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421 /** |
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422 * C++ constructor. |
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423 */ |
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424 CVtEngBufferWaiter( CPostingSurface& aPostingSurface, |
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425 MVtEngBufferWaiterObserver& aObserver ); |
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426 |
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427 /** |
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428 * Destructor, frees all resources allocated by this instance. |
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429 */ |
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430 ~CVtEngBufferWaiter(); |
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431 |
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432 /** |
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433 * Fetch new buffer (also activates listening). |
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434 */ |
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435 TInt FetchBuffer(); |
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436 |
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437 private: // new methods |
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438 |
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439 /** |
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440 * Activate buffer listening (also calls CActive::SetActive()). |
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441 */ |
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442 void Activate(); |
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443 |
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444 private: // from CActive |
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445 |
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446 /** |
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447 * @see CActive::RunL() |
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448 */ |
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449 void RunL(); |
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450 |
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451 /** |
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452 * @see CActive::DoCancel() |
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453 */ |
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454 void DoCancel(); |
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455 |
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456 private: // data |
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457 |
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458 // Posting surface instance (not owned) |
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459 CPostingSurface* iPostingSurface; |
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460 |
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461 // BufferWaiter observer who gets informed about buffers |
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462 MVtEngBufferWaiterObserver* iObserver; |
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463 }; |
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464 |
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465 private: // data |
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466 |
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467 // Posting surface instance |
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468 CPostingSurface* iPostingSurface; |
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469 |
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470 // Posting capabilities |
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471 CPostingSurface::TPostingCapab iPostingCaps; |
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472 |
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473 // Posting buffers |
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474 TVtEngBuffer |
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475 iBuffers[ MDisplaySink::EFirstBitmap + KVtEngMaxBuffers ]; |
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476 |
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477 // Buffer waiter instance |
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478 CVtEngBufferWaiter* iBufferWaiter; |
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479 |
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480 // Rendering configuration |
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481 TVtEngRenderConfigDP iConfig; |
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482 |
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483 // Clipping region |
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484 RRegion iClipRegion; |
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485 |
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486 // Frame buffer |
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487 HBufC8* iFrameBuffer; |
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488 |
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489 // Selected posting format |
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490 CPostingSurface::TPostingFormat iPostingFormat; |
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491 |
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492 // DP API DLL |
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493 RLibrary* iDPLib; |
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494 |
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495 // Source image contains converted YUV frame |
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496 CVtImageBitmap* iSource; |
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497 |
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498 // Target image contains scaled bitmap |
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499 CVtImageBitmap* iTarget; |
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500 |
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501 // Image scaler instance |
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502 CVtImageScaler* iImageScaler; |
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503 |
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504 // Clip region updated |
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505 TBool iClipRegionUpdated; |
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506 |
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507 }; |
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508 |
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509 #endif // CVTENGDRAWDP_H |