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1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies). |
1 // Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies). |
2 // All rights reserved. |
2 // All rights reserved. |
3 // This component and the accompanying materials are made available |
3 // This component and the accompanying materials are made available |
4 // under the terms of "Eclipse Public License v1.0" |
4 // under the terms of "Eclipse Public License v1.0" |
5 // which accompanies this distribution, and is available |
5 // which accompanies this distribution, and is available |
6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
47 CDrawXxxBppBitmap::iScanLineWords = iHelper.BytesPerScanline() / 4; |
47 CDrawXxxBppBitmap::iScanLineWords = iHelper.BytesPerScanline() / 4; |
48 if (CDrawXxxBppBitmap::iScanLineWords==0) |
48 if (CDrawXxxBppBitmap::iScanLineWords==0) |
49 { //Note: This will cause WServ startup to fail. WServ only accepts KErrNotSupported |
49 { //Note: This will cause WServ startup to fail. WServ only accepts KErrNotSupported |
50 return KErrHardwareNotAvailable; |
50 return KErrHardwareNotAvailable; |
51 } |
51 } |
52 TInt ret = CDrawXxxBppBitmap::Construct(aSize, CDrawXxxBppBitmap::iScanLineWords << 2); |
52 TInt ret = CDrawXxxBppBitmap::Construct(aSize, iHelper.BytesPerScanline()); |
53 if (ret == KErrNone) |
53 if (ret == KErrNone) |
54 { |
54 { |
55 CDrawXxxBppBitmap::iBits = (TUint32*)iHelper.AddressFirstPixel(); |
55 CDrawXxxBppBitmap::iBits = (TUint32*)iHelper.AddressFirstPixel(); |
56 if (CDrawXxxBppBitmap::iBits==NULL) |
56 if (CDrawXxxBppBitmap::iBits==NULL) |
57 { //Note: This will cause WServ startup to fail. WServ only accepts KErrNotSupported |
57 { //Note: This will cause WServ startup to fail. WServ only accepts KErrNotSupported |
96 iHelper.Update(); |
96 iHelper.Update(); |
97 } |
97 } |
98 |
98 |
99 template <class T> void CGenericScreenDevice<T>::Update(const TRegion& aRegion) |
99 template <class T> void CGenericScreenDevice<T>::Update(const TRegion& aRegion) |
100 { |
100 { |
101 iHelper.Update(aRegion); |
101 if(!aRegion.IsEmpty() && !aRegion.CheckError()) |
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102 { |
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103 if (aRegion.Count()>KMaxUpdateRegionRectangles) |
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104 { |
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105 UpdateRegion(aRegion.BoundingRect()); |
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106 } |
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107 else |
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108 { |
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109 TInt rcCnt = aRegion.Count(); |
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110 for (TInt ii=0; ii < rcCnt; ++ii) |
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111 { |
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112 UpdateRegion(aRegion[ii]); //Applies deorientate (offset, scale, rotate) |
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113 } |
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114 } |
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115 } |
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116 Update(); |
102 } |
117 } |
103 |
118 |
104 template <class T> void CGenericScreenDevice<T>::UpdateRegion(const TRect& aRect) |
119 template <class T> void CGenericScreenDevice<T>::UpdateRegion(const TRect& aRect) |
105 { |
120 { |
106 iHelper.UpdateRegion(aRect); |
121 const TRect rect = CDrawXxxBppBitmap::DeOrientate(aRect);//rect - physical coordinates |
107 } |
122 |
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123 iHelper.UpdateRegion(rect); |
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124 } |
108 |
125 |
109 template <class T> TInt CGenericScreenDevice<T>::GetInterface(TInt aInterfaceId, TAny*& aInterface) |
126 template <class T> TInt CGenericScreenDevice<T>::GetInterface(TInt aInterfaceId, TAny*& aInterface) |
110 { |
127 { |
111 if(aInterfaceId == KSurfaceInterfaceID) |
128 if(aInterfaceId == KSurfaceInterfaceID) |
112 { |
129 { |
173 { |
190 { |
174 return EFalse; |
191 return EFalse; |
175 } |
192 } |
176 |
193 |
177 // Need to update size, scan line size, etc. |
194 // Need to update size, scan line size, etc. |
178 CGenericScreenDevice::SetSize(newSize); |
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179 |
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180 // Setting iScanLineWords MUST occur after the call to SetSize because SetSize itself |
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181 // sets iScanLineBytes to support offscreen bitmaps and may do so incorrectly for hardware devices |
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182 // as it just uses the width, whereas BytesPerScanline takes into account any extra bytes needed |
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183 // as defined by the hardware. |
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184 CGenericScreenDevice::iScanLineWords = CGenericScreenDevice::iHelper.BytesPerScanline() / 4; //presumption here that BPS is always mod4. |
195 CGenericScreenDevice::iScanLineWords = CGenericScreenDevice::iHelper.BytesPerScanline() / 4; //presumption here that BPS is always mod4. |
185 CGenericScreenDevice::iBits = (TUint32*)CGenericScreenDevice::iHelper.AddressFirstPixel(); |
196 CGenericScreenDevice::iBits = (TUint32*)CGenericScreenDevice::iHelper.AddressFirstPixel(); |
186 __ASSERT_ALWAYS(CGenericScreenDevice::iScanLineWords && CGenericScreenDevice::iBits,Panic(EScreenDriverPanicInvalidHalValue)); |
197 __ASSERT_ALWAYS(CGenericScreenDevice::iScanLineWords && CGenericScreenDevice::iBits,Panic(EScreenDriverPanicInvalidHalValue)); |
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198 CGenericScreenDevice::SetSize(newSize); |
187 |
199 |
188 return ETrue; |
200 return ETrue; |
189 } |
201 } |
190 |
202 |
191 |
203 |
219 { |
231 { |
220 return EFalse; |
232 return EFalse; |
221 } |
233 } |
222 |
234 |
223 // Need to update size, scan line size, etc. |
235 // Need to update size, scan line size, etc. |
224 CGenericScreenDevice::SetSize(newSize); |
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225 |
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226 // Setting iScanLineWords MUST occur after the call to SetSize because SetSize itself |
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227 // sets iScanLineBytes to support offscreen bitmaps and may do so incorrectly for hardware devices |
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228 // as it just uses the width, whereas BytesPerScanline takes into account any extra bytes needed |
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229 // as defined by the hardware. |
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230 CGenericScreenDevice::iScanLineWords = CGenericScreenDevice::iHelper.BytesPerScanline() / 4; //presumption here that BPS is always mod4. |
236 CGenericScreenDevice::iScanLineWords = CGenericScreenDevice::iHelper.BytesPerScanline() / 4; //presumption here that BPS is always mod4. |
231 CGenericScreenDevice::iBits = (TUint32*)CGenericScreenDevice::iHelper.AddressFirstPixel(); |
237 CGenericScreenDevice::iBits = (TUint32*)CGenericScreenDevice::iHelper.AddressFirstPixel(); |
232 __ASSERT_ALWAYS(CGenericScreenDevice::iScanLineWords && CGenericScreenDevice::iBits,Panic(EScreenDriverPanicInvalidHalValue)); |
238 __ASSERT_ALWAYS(CGenericScreenDevice::iScanLineWords && CGenericScreenDevice::iBits,Panic(EScreenDriverPanicInvalidHalValue)); |
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239 CGenericScreenDevice::SetSize(newSize); |
233 |
240 |
234 return ETrue; |
241 return ETrue; |
235 } |
242 } |
236 |
243 |
237 |
244 |