Mercurial > s60_experiments
annotate DemoCube/src/DemoCubeAppView.cpp @ 5:f546bb5370c7 default tip
Added a readme and a TODO in the source code.
| author | Atul Varma <varmaa@toolness.com> |
|---|---|
| date | Tue, 12 Feb 2008 19:09:21 -0600 |
| parents | 0a2b5a968ce7 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /*===================================================================== |
| 2 | |
| 3 Copyright © 2007 Nokia Corporation. All rights reserved. | |
| 4 | |
| 5 ======================================================================*/ | |
| 6 | |
| 7 /* | |
| 8 ============================================================================ | |
| 9 Name : DemoCubeAppView.cpp | |
| 10 Author : Nokia Computer Vision Team in NRC Palo Alto | |
| 11 Copyright : Your copyright notice | |
| 12 Description : Application view implementation | |
| 13 ============================================================================ | |
| 14 */ | |
| 15 | |
| 16 // INCLUDE FILES | |
| 17 #include <coemain.h> | |
| 18 #include "DemoCubeAppView.h" | |
| 19 | |
| 20 #include "DemoCamera.h" | |
| 21 #include "ncvImage.h" | |
| 22 #include "ncvCamus.h" | |
| 23 #include "ncvOpticalFlow.h" | |
| 24 #include "ncvEgoMovement.h" | |
| 25 #include "DemoCube.h" | |
|
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26 #include "ImageLoader.h" |
| 0 | 27 |
| 28 #define PADDING_WIDTH 40 | |
| 29 #define PADDING_HEIGHT 30 | |
| 30 | |
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31 _LIT( KPicture, "firefox.png" ); |
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32 |
| 0 | 33 // ============================ MEMBER FUNCTIONS =============================== |
| 34 | |
| 35 // ----------------------------------------------------------------------------- | |
| 36 // CDemoCubeAppView::NewL() | |
| 37 // Two-phased constructor. | |
| 38 // ----------------------------------------------------------------------------- | |
| 39 // | |
| 40 CDemoCubeAppView* CDemoCubeAppView::NewL(const TRect& aRect, CDemoCubeAppUi* aAppUi) | |
| 41 { | |
| 42 CDemoCubeAppView* self = new(ELeave) CDemoCubeAppView(aAppUi); | |
| 43 CleanupStack::PushL(self); | |
| 44 self->ConstructL(aRect); | |
| 45 CleanupStack::Pop(); | |
| 46 return self; | |
| 47 } | |
| 48 | |
| 49 // ----------------------------------------------------------------------------- | |
| 50 // CDemoCubeAppView::ConstructL() | |
| 51 // Symbian 2nd phase constructor can leave. | |
| 52 // ----------------------------------------------------------------------------- | |
| 53 // | |
| 54 void CDemoCubeAppView::ConstructL( const TRect& aRect ) | |
| 55 { | |
| 56 Reset(); | |
| 57 | |
| 58 if ( CCamera::CamerasAvailable() ) //Yingen added for detecting camera | |
| 59 {//Yingen added for detecting camera | |
| 60 iCamera = CDemoCamera::NewL(aRect.Size() - TSize(PADDING_WIDTH, PADDING_HEIGHT), this); | |
| 61 iCamera->Acquire(); | |
| 62 | |
| 63 iCamusImage = CNokiaCVImage::NewL(); | |
| 64 iCamusImage->CreateL(iBitmapSize, EColor16M); | |
| 65 }//Yingen added for detecting camera | |
| 66 iCube = CDemoCube::NewL(aRect); | |
| 67 iCubePoints = new(ELeave) CArrayFixFlat<TPoint>(5); | |
| 68 for(TInt i = 0; i < 5; i++) | |
| 69 { | |
| 70 TPoint tmp(0, 0); | |
| 71 iCubePoints->AppendL(tmp); | |
| 72 } | |
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73 |
| 0 | 74 // Create a window for this application view |
| 75 CreateWindowL(); | |
| 76 | |
| 77 // Set the windows size | |
| 78 SetRect( aRect ); | |
| 79 | |
| 80 // Activate the window, which makes it ready to be drawn | |
| 81 ActivateL(); | |
| 82 } | |
| 83 | |
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84 void CDemoCubeAppView::StartImgLoader() |
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85 { |
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86 // was 50,50 |
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87 TSize iSize(493, 305); |
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88 TInt color; |
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89 TInt gray; |
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90 TDisplayMode displayMode = CEikonEnv::Static()->WsSession().GetDefModeMaxNumColors( color, gray ); |
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91 |
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92 iPicture = new (ELeave) CFbsBitmap; |
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93 if (iPicture) |
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94 iPicture->Create(iSize, displayMode); //EColor16MA |
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95 // TODO: We're hard-coding the 'c' drive here, but the user |
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96 // could've installed the program to a different drive. Obtain |
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97 // the drive letter dynamically. |
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98 iLoader = CImageLoader::NewL( 'c' ); |
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99 iLoader->LoadImage( KPicture, iPicture ); |
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100 } |
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101 |
| 0 | 102 // ----------------------------------------------------------------------------- |
| 103 // CDemoCubeAppView::CDemoCubeAppView() | |
| 104 // C++ default constructor can NOT contain any code, that might leave. | |
| 105 // ----------------------------------------------------------------------------- | |
| 106 // | |
| 107 CDemoCubeAppView::CDemoCubeAppView(CDemoCubeAppUi* aAppUi) : | |
| 108 iAppUi(aAppUi), | |
| 109 iCamera(NULL), | |
| 110 iCamusImage(NULL), | |
| 111 iBitmapSize(25, 18), | |
| 112 iCamus(NULL), | |
| 113 iOpticalFlow(NULL), | |
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114 iCube(NULL), |
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115 iLoader(NULL), |
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116 iPicture(NULL) |
| 0 | 117 { |
| 118 } | |
| 119 | |
| 120 void CDemoCubeAppView::Reset() | |
| 121 { | |
| 122 iCubeWidth = 10; | |
| 123 iMove.iX = 0.0; | |
| 124 iMove.iY = 0.0; | |
| 125 iAngle = 0.0; | |
| 126 } | |
| 127 // ----------------------------------------------------------------------------- | |
| 128 // CDemoCubeAppView::~CDemoCubeAppView() | |
| 129 // Destructor. | |
| 130 // ----------------------------------------------------------------------------- | |
| 131 // | |
| 132 CDemoCubeAppView::~CDemoCubeAppView() | |
| 133 { | |
| 134 // No implementation required | |
| 135 if(iCamera) | |
| 136 { | |
| 137 delete iCamera; | |
| 138 iCamera = NULL; | |
| 139 } | |
| 140 if(iCamusImage) | |
| 141 { | |
| 142 delete iCamusImage; | |
| 143 iCamusImage = NULL; | |
| 144 } | |
| 145 if(iCamus) | |
| 146 { | |
| 147 delete iCamus; | |
| 148 iCamus = NULL; | |
| 149 } | |
| 150 if(iOpticalFlow) | |
| 151 { | |
| 152 delete iOpticalFlow; | |
| 153 iOpticalFlow = NULL; | |
| 154 } | |
| 155 if(iCube) | |
| 156 { | |
| 157 delete iCube; | |
| 158 iCube = NULL; | |
| 159 } | |
| 160 if(iCubePoints) | |
| 161 { | |
| 162 delete iCubePoints; | |
| 163 iCubePoints = NULL; | |
| 164 } | |
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165 if(iLoader) |
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166 { |
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167 delete iLoader; |
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168 iLoader = NULL; |
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169 } |
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170 if(iPicture) |
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171 { |
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172 delete iPicture; |
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173 iPicture = NULL; |
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174 } |
| 0 | 175 } |
| 176 | |
| 177 // ----------------------------------------------------------------------------- | |
| 178 // CDemoCubeAppView::Draw() | |
| 179 // Draws the display. | |
| 180 // ----------------------------------------------------------------------------- | |
| 181 // | |
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182 void CDemoCubeAppView::Draw(CFbsBitmap& aBitmap, CArrayFixFlat<TPoint>* aCube) |
| 0 | 183 { |
| 184 CWindowGc& gc = SystemGc(); | |
| 185 gc.Activate(Window()); | |
| 186 gc.Clear(); | |
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187 //gc.BitBlt(TPoint(PADDING_WIDTH / 2, PADDING_HEIGHT / 2), &aBitmap); |
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188 |
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189 |
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190 //gc.BitBlt(TPoint(PADDING_WIDTH / 2, PADDING_HEIGHT / 2), iPicture); |
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191 gc.BitBlt(TPoint( (TInt)iMove.iY.Real(), (TInt)iMove.iX.Real()), iPicture); |
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192 //gc.SetPenColor(TRgb(0xff, 0, 0)); |
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193 //gc.DrawPolyLine(aCube); |
| 0 | 194 gc.Deactivate(); |
| 195 iCoeEnv->WsSession().Flush(); | |
| 196 } | |
| 197 | |
| 198 void CDemoCubeAppView::CameraReady() | |
| 199 { | |
| 200 iCamera->StartFeedL(); | |
| 201 } | |
| 202 | |
| 203 void CDemoCubeAppView::SetCameraFrame(CFbsBitmap& aBitmap) | |
| 204 { | |
| 205 BitmapDownScale(aBitmap); | |
| 206 | |
| 207 if(!iCamus) | |
| 208 { | |
| 209 iCamus = CCamus::NewL(*iCamusImage, 5); | |
| 210 iOpticalFlow = COpticalFlow::NewL(iCamusImage->Size()); | |
| 211 } | |
| 212 | |
| 213 iCamus->GetOpticalFlow(*iOpticalFlow, *iCamusImage, CAMUS_SETCAMUSOPTS(CCamus::EMedium, CCamus::EMedium, 3)); | |
| 214 CEgoMovement mean = iOpticalFlow->Mean(); | |
| 215 iMove.iX -= mean.iX * 6.3; | |
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216 iMove.iY -= mean.iY * 6.3; |
| 0 | 217 iAngle += iOpticalFlow->Rotation().Real() * 10.5; |
| 218 | |
| 219 // | |
| 220 iCubeWidth += (TInt)(iOpticalFlow->Depth().Real() * 5); | |
| 221 iCubeWidth = Max(2, iCubeWidth); | |
| 222 iCubeWidth = Min(iCubeWidth, 40); | |
| 223 // | |
| 224 | |
| 225 | |
| 226 iCube->Calculate(*iCubePoints, (TInt)iMove.iX.Real(), (TInt)iMove.iY.Real(), (TInt)iAngle, iCubeWidth); | |
| 227 | |
| 228 Draw(aBitmap, iCubePoints); | |
| 229 } | |
| 230 | |
| 231 void CDemoCubeAppView::BitmapDownScale(CFbsBitmap& aOriginal) | |
| 232 { | |
| 233 const TInt xBlockSize = aOriginal.SizeInPixels().iWidth / iBitmapSize.iWidth; | |
| 234 const TInt yBlockSize = aOriginal.SizeInPixels().iHeight / iBitmapSize.iHeight; | |
| 235 | |
| 236 TRgb color; | |
| 237 TPoint pos(0, 0); | |
| 238 | |
| 239 CPixelAccess* pa = CPixelAccess::NewLC(iCamusImage); | |
| 240 | |
| 241 | |
| 242 for(TInt y = 0; y < iBitmapSize.iHeight; y++) | |
| 243 { | |
| 244 for(TInt x = 0; x < iBitmapSize.iWidth; x++) | |
| 245 { | |
| 246 TInt red = 0; | |
| 247 TInt green = 0; | |
| 248 TInt blue = 0; | |
| 249 | |
| 250 for(TInt j = 0; j < yBlockSize; j++) | |
| 251 { | |
| 252 for(TInt i = 0; i < xBlockSize; i++) | |
| 253 { | |
| 254 pos.SetXY(x * xBlockSize + i, y * yBlockSize + j); | |
| 255 aOriginal.GetPixel(color, pos); | |
| 256 red += color.Red(); | |
| 257 green += color.Green(); | |
| 258 blue += color.Blue(); | |
| 259 } | |
| 260 } | |
| 261 | |
| 262 pos.SetXY(x, y); | |
| 263 pa->SetPos(pos); | |
| 264 const TInt pixels = xBlockSize * yBlockSize; | |
| 265 color.SetBlue(blue / pixels); | |
| 266 color.SetGreen(green / pixels); | |
| 267 color.SetRed(red / pixels); | |
| 268 pa->SetRGB(color.Value()); | |
| 269 } | |
| 270 } | |
| 271 CleanupStack::Pop(pa); | |
| 272 delete pa; | |
| 273 } | |
| 274 | |
| 275 // End of File |