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1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 |
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16 #include "rendertarget.h" |
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17 #include <graphics/directgdidriver.h> |
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18 #include <graphics/sgutils.h> |
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19 #include "panic.h" |
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20 #include <bitdraworigin.h> |
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21 #include <bitdrawinterfaceid.h> |
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22 #include "utils.h" |
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23 #if defined(__WINS__) && defined(_DEBUG) |
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24 #include "osbwin.h" |
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25 #endif |
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26 |
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27 RWsOffScreenImageTarget::RWsOffScreenImageTarget() |
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28 { |
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29 } |
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30 |
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31 void RWsOffScreenImageTarget::OpenL(TUint32 aUsage, TSgCpuAccess aCpuAccess, TUidPixelFormat aPixelFormat, const TSize& aSize, TInt aScreenNumber) |
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32 { |
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33 CDirectGdiDriver* theDGdiDriver = CDirectGdiDriver::Static(); |
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34 if(!theDGdiDriver) |
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35 { |
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36 User::Leave(KErrNotReady); |
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37 } |
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38 iImageInfos[CRenderTarget::ENormalAspectRatio].iUsage = aUsage; |
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39 iImageInfos[CRenderTarget::ENormalAspectRatio].iPixelFormat = aPixelFormat; |
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40 iImageInfos[CRenderTarget::ENormalAspectRatio].iSizeInPixels = aSize; |
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41 iImageInfos[CRenderTarget::ENormalAspectRatio].iCpuAccess = aCpuAccess; |
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42 iImageInfos[CRenderTarget::ENormalAspectRatio].iScreenId = aScreenNumber; |
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43 |
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44 iImageInfos[CRenderTarget::EInvertedAspectRatio] = iImageInfos[CRenderTarget::ENormalAspectRatio]; |
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45 iImageInfos[CRenderTarget::EInvertedAspectRatio].iSizeInPixels.SetSize(aSize.iHeight, aSize.iWidth); |
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46 |
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47 const TInt KImageCount = 1; |
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48 User::LeaveIfError(RSgImageCollection::Create(iImageInfos, KImageCount, iImageCollections, CRenderTarget::EAspectRatioCount)); |
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49 |
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50 for(TInt ii = 0; ii < CRenderTarget::EAspectRatioCount; ii++) |
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51 { |
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52 User::LeaveIfError(iImageCollections[ii].GetInfo(iImageInfos[ii])); //should be the same as requested, this is just belt and braces |
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53 User::LeaveIfError(iImageCollections[ii].OpenImage(0, iImages[ii])); |
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54 iImageTargets[ii] = RDirectGdiImageTarget(*theDGdiDriver); |
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55 User::LeaveIfError(iImageTargets[ii].Create(iImages[ii])); |
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56 } |
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57 } |
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58 |
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59 void RWsOffScreenImageTarget::Close() |
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60 { |
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61 for(TInt ii = 0; ii < CRenderTarget::EAspectRatioCount; ii++) |
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62 { |
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63 iImageTargets[ii].Close(); |
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64 iImages[ii].Close(); |
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65 iImageCollections[ii].Close(); |
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66 } |
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67 } |
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68 |
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69 /** |
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70 Create and construct render target. The function creates RSgImage and target associated with it. |
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71 DirectGc wrapper will also be created at this stage. |
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72 */ |
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73 CRenderTarget* CRenderTarget::NewL(MWsIniFile* aIniFile, TUint32 aUsage, TSgCpuAccess aCpuAccess, TDisplayMode aDisplayMode, const TSize& aSize, TInt aScreenNumber) |
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74 { |
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75 CRenderTarget* self=new(ELeave) CRenderTarget(); |
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76 CleanupStack::PushL(self); |
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77 self->ConstructL(aIniFile, aUsage, aCpuAccess, aDisplayMode, aSize, aScreenNumber); |
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78 CleanupStack::Pop(self); |
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79 return self; |
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80 } |
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81 |
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82 inline CRenderTarget::CRenderTarget() |
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83 : iCurrentAspectRatio(ENormalAspectRatio) |
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84 {} |
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85 |
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86 CRenderTarget::~CRenderTarget() |
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87 { |
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88 delete iDirectGdiGcWrapper; |
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89 iTarget.Close(); |
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90 #if defined(__WINS__) && defined(_DEBUG) |
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91 delete iOsbWin; |
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92 #endif |
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93 } |
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94 |
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95 /** |
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96 Construct render target. The function creates RSgImage and target associated with it. |
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97 DirectGc wrapper will also be created at this stage. |
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98 */ |
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99 #if defined(__WINS__) && defined(_DEBUG) |
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100 void CRenderTarget::ConstructL(MWsIniFile* aIniFile, TUint32 aUsage, TSgCpuAccess aCpuAccess, TDisplayMode aDisplayMode, const TSize& aSize, TInt aScreenNumber) |
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101 #else |
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102 void CRenderTarget::ConstructL(MWsIniFile* /*aIniFile*/, TUint32 aUsage, TSgCpuAccess aCpuAccess, TDisplayMode aDisplayMode, const TSize& aSize, TInt aScreenNumber) |
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103 #endif |
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104 { |
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105 CDirectGdiDriver* theDGdiDriver = CDirectGdiDriver::Static(); |
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106 if(!theDGdiDriver) |
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107 { |
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108 User::Leave(KErrNotReady); |
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109 } |
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110 iTarget.OpenL(aUsage, aCpuAccess, SgUtils::DisplayModeToPixelFormat(aDisplayMode), aSize, aScreenNumber); |
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111 iDirectGdiGcWrapper = CDirectGdiGcWrapper::NewL(); |
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112 User::LeaveIfError(iDirectGdiGcWrapper->DirectGdiGc().Activate(iTarget.iImageTargets[iCurrentAspectRatio])); |
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113 |
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114 #if defined(__WINS__) && defined(_DEBUG) |
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115 _LIT(KDebugOsb, "DEBUGOSB"); |
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116 if(aIniFile->FindVar(aScreenNumber, KDebugOsb)) |
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117 { |
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118 _LIT(KDebugOsbTitleFormatBackBuffer, "Screen %d, back buffer "); |
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119 _LIT(KDebugOsbTitleFormatScreen, "Screen %d, display buffer"); |
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120 TBuf<32> title; |
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121 title.Format(((aUsage & ESgUsageScreenSource) ? KDebugOsbTitleFormatScreen : KDebugOsbTitleFormatBackBuffer), aScreenNumber); |
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122 iOsbWin = CDebugOsbWin::NewL(title, aSize); |
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123 } |
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124 #endif |
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125 } |
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126 |
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127 TAny* CRenderTarget::ResolveObjectInterface(TUint aTypeId) |
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128 { |
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129 switch(aTypeId) |
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130 { |
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131 case MWsUiBuffer::EWsObjectInterfaceId: |
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132 return static_cast<MWsUiBuffer*>(this); |
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133 } |
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134 return DirectGdiGc()->ResolveObjectInterface(aTypeId); |
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135 } |
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136 |
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137 TInt CRenderTarget::MapReadWrite(TAny*& aDataAddress, TInt& aDataStride) |
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138 { |
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139 CDirectGdiDriver* driver = CDirectGdiDriver::Static(); |
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140 if(driver) |
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141 driver->Finish(); |
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142 return Image().MapReadWrite(aDataAddress, aDataStride); |
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143 } |
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144 |
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145 TInt CRenderTarget::MapWriteOnly(TAny*& aDataAddress, TInt& aDataStride) |
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146 { |
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147 CDirectGdiDriver* driver = CDirectGdiDriver::Static(); |
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148 if(driver) |
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149 driver->Finish(); |
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150 return Image().MapWriteOnly(aDataAddress, aDataStride); |
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151 } |
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152 |
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153 TInt CRenderTarget::MapReadOnly(const TAny*& aDataAddress, TInt& aDataStride) const |
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154 { |
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155 CDirectGdiDriver* driver = CDirectGdiDriver::Static(); |
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156 if(driver) |
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157 driver->Finish(); |
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158 return Image().MapReadOnly(aDataAddress, aDataStride); |
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159 } |
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160 |
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161 TInt CRenderTarget::Unmap() |
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162 { |
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163 return Image().Unmap(); |
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164 } |
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165 |
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166 TInt CRenderTarget::Unmap() const |
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167 { |
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168 return Image().Unmap(); |
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169 } |
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170 |
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171 TUidPixelFormat CRenderTarget::PixelFormat() const |
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172 { |
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173 return ImageInfo().iPixelFormat; |
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174 } |
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175 |
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176 TSize CRenderTarget::SizeInPixels() const |
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177 { |
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178 return ImageInfo().iSizeInPixels; |
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179 } |
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180 |
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181 TDisplayMode CRenderTarget::DisplayMode() const |
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182 { |
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183 return SgUtils::PixelFormatToDisplayMode(PixelFormat()); |
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184 } |
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185 |
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186 const TSurfaceId& CRenderTarget::SurfaceId() const |
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187 { |
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188 return ImageCollection().SurfaceId(); |
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189 } |
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190 |
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191 const TSgDrawableId& CRenderTarget::ImageId(TAspectRatio aAspectRatio) const |
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192 { |
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193 return iTarget.iImages[aAspectRatio].Id(); |
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194 } |
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195 |
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196 void CRenderTarget::SetAspectRatio(TAspectRatio aAspectRatio) |
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197 { |
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198 STD_ASSERT_DEBUG(aAspectRatio == ENormalAspectRatio || aAspectRatio == EInvertedAspectRatio, EPluginPanicTemp); |
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199 if(aAspectRatio != iCurrentAspectRatio) |
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200 { |
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201 iCurrentAspectRatio = aAspectRatio; |
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202 iDirectGdiGcWrapper->Reset(); |
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203 } |
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204 iDirectGdiGcWrapper->DirectGdiGc().Activate(iTarget.iImageTargets[iCurrentAspectRatio]); |
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205 } |
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206 |
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207 TInt CRenderTarget::SetDrawDeviceOffset(TPoint& aOrigin) |
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208 { |
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209 //set the offset on both wrappers |
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210 MDrawDeviceOrigin* originInterface=NULL; |
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211 TInt result= iDirectGdiGcWrapper->DirectGdiGc().GetInterface(TUid::Uid(KDrawDeviceOriginInterfaceID),reinterpret_cast<TAny*&>(originInterface)); |
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212 if (result>=KErrNone && originInterface!=NULL) |
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213 { |
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214 result=originInterface->Set(aOrigin); |
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215 } |
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216 |
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217 if (result>=KErrNone) |
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218 { |
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219 iOffset=aOrigin; |
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220 iDirectGdiGcWrapper->DirectGdiGc().Activate(iTarget.iImageTargets[iCurrentAspectRatio]); |
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221 } |
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222 return result; |
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223 } |
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224 |
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225 TInt CRenderTarget::AllocNewTarget(RWsOffScreenImageTarget& aNewTarget, const TSize& aNewSize) |
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226 { |
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227 TRAPD(err, |
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228 aNewTarget.OpenL( |
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229 iTarget.iImageInfos[CRenderTarget::ENormalAspectRatio].iUsage, |
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230 iTarget.iImageInfos[CRenderTarget::ENormalAspectRatio].iCpuAccess, |
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231 iTarget.iImageInfos[CRenderTarget::ENormalAspectRatio].iPixelFormat, |
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232 aNewSize, |
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233 iTarget.iImageInfos[CRenderTarget::ENormalAspectRatio].iScreenId)) |
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234 return err; |
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235 } |
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236 |
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237 void CRenderTarget::SwitchTarget(RWsOffScreenImageTarget& aNewTarget) |
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238 { |
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239 iTarget.Close(); |
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240 iTarget = aNewTarget; |
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241 iDirectGdiGcWrapper->DirectGdiGc().Activate(iTarget.iImageTargets[iCurrentAspectRatio]); |
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242 } |
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243 |
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244 void CRenderTarget::GetPixel(TRgb& aColor, const TPoint& aPixel) const |
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245 { |
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246 const TAny* dataAddress = NULL; |
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247 TInt dataStride; |
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248 const TInt err = MapReadOnly(dataAddress, dataStride); |
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249 if(!err) |
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250 { |
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251 const TUidPixelFormat pixelFormat = PixelFormat(); |
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252 const TInt bpp = SgUtils::MinDataStride(1, pixelFormat); |
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253 const TUint32 offset = aPixel.iY * dataStride / bpp + aPixel.iX; |
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254 switch(pixelFormat) |
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255 { |
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256 case EUidPixelFormatARGB_8888_PRE: |
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257 case EUidPixelFormatARGB_8888: |
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258 { |
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259 const TInt32* dataAddress1 = static_cast<const TInt32*>(dataAddress) + offset; |
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260 const TInt32 colValue = *dataAddress1; |
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261 aColor.SetInternal(colValue); |
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262 } |
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263 break; |
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264 case EUidPixelFormatRGB_565: |
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265 { |
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266 const TInt16* dataAddress1 = static_cast<const TInt16*>(dataAddress) + offset; |
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267 const TInt16 colValue = *dataAddress1; |
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268 aColor = TRgb::Color64K((TInt)colValue); |
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269 } |
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270 break; |
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271 } |
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272 Unmap(); |
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273 } |
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274 } |
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275 |
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276 void CRenderTarget::GetScanLine(TDes8& aScanLine, const TPoint& aStartPixel, TInt aPixelLength, TDisplayMode aDispMode) const |
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277 { |
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278 TRect rectSrc(aStartPixel, TSize(aPixelLength, 1)); |
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279 const TRect rectClientArea(SizeInPixels()); |
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280 rectSrc.Intersection(rectClientArea); |
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281 if(rectSrc.IsEmpty()) |
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282 return; |
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283 const TUidPixelFormat pixelFormatSource = PixelFormat(); |
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284 const TUidPixelFormat pixelFormatDest = SgUtils::DisplayModeToPixelFormat(aDispMode); |
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285 if((pixelFormatSource == EUidPixelFormatUnknown) || (pixelFormatDest == EUidPixelFormatUnknown)) |
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286 return; |
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287 |
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288 aPixelLength = rectSrc.Width(); |
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289 const TInt dataStrideDest = SgUtils::MinDataStride(aPixelLength, pixelFormatDest); |
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290 if(dataStrideDest <= 0) |
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291 return; |
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292 const TAny* dataAddressSource = NULL; |
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293 TInt dataStrideSource; |
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294 const TInt err = MapReadOnly(dataAddressSource, dataStrideSource); |
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295 if(!err) |
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296 { |
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297 aScanLine.SetLength(dataStrideDest); |
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298 SgUtils::TransferPixels(const_cast<TUint8*>(aScanLine.Ptr()), dataStrideDest, pixelFormatDest, |
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299 dataAddressSource, dataStrideSource, pixelFormatSource, rectSrc); |
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300 Unmap(); |
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301 } |
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302 } |
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303 |
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304 TBool CRenderTarget::RectCompare(const TRect& aRect1, const TRect& aRect2) const |
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305 { |
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306 const TAny* startDataAddress = NULL; |
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307 TInt dataStride; |
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308 |
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309 const TRect clientRect(SizeInPixels()); |
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310 TRect rect1 = aRect1; |
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311 TRect rect2 = aRect2; |
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312 |
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313 rect1.Intersection(clientRect); |
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314 rect2.Intersection(clientRect); |
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315 if(rect1.IsEmpty() || rect2.IsEmpty() || (rect1 != aRect1) || (rect2 != aRect2) || |
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316 (rect1.Width() != rect2.Width()) || (rect1.Height() != rect2.Height())) |
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317 return EFalse; |
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318 |
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319 TUidPixelFormat pixelFormat = PixelFormat(); |
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320 if(pixelFormat == EUidPixelFormatUnknown) |
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321 return EFalse; |
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322 |
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323 TInt bpp = SgUtils::MinDataStride(1, pixelFormat); |
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324 if(bpp == 0) |
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325 return EFalse; |
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326 |
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327 TInt err = MapReadOnly(startDataAddress, dataStride); |
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328 if(err != KErrNone) |
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329 return EFalse; |
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330 TBool res = ETrue; |
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331 TPoint startPoint1 = rect1.iTl; |
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332 TPoint startPoint2 = rect2.iTl; |
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333 const TInt length1 = SgUtils::MinDataStride(rect1.Width(), pixelFormat); |
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334 const TInt length2 = SgUtils::MinDataStride(rect2.Width(), pixelFormat); |
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335 |
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336 for(; (startPoint1.iY < rect1.iBr.iY) && (startPoint2.iY < rect2.iBr.iY); startPoint1.iY++, startPoint2.iY++) |
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337 { |
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338 const TUint8* dataAddress1 = DataAddress(startDataAddress, startPoint1, dataStride, bpp); |
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339 const TUint8* dataAddress2 = DataAddress(startDataAddress, startPoint2, dataStride, bpp); |
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340 |
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341 if(Mem::Compare(dataAddress1, length1, dataAddress2, length2) != 0) |
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342 { |
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343 res = EFalse; |
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344 break; |
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345 } |
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346 } |
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347 Unmap(); |
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348 |
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349 return res; |
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350 } |
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351 |
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352 void CRenderTarget::CopyToBitmapL(CFbsBitmap* aBitmap, const TRect& aRect) const |
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353 { |
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354 const TUidPixelFormat pixelFormatDest = SgUtils::DisplayModeToPixelFormat(aBitmap->DisplayMode()); |
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355 const TUidPixelFormat pixelFormatSrc = PixelFormat(); |
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356 if((pixelFormatSrc == EUidPixelFormatUnknown) || (pixelFormatDest == EUidPixelFormatUnknown)) |
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357 User::LeaveIfError(KErrNotSupported); |
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358 |
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359 aBitmap->BeginDataAccess(); |
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360 const TSize sizeDest = aBitmap->SizeInPixels(); |
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361 TRect rectSrc = aRect; |
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362 rectSrc.Intersection(TRect(SizeInPixels())); |
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363 if(rectSrc.IsEmpty()) |
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364 return; |
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365 if(rectSrc.Height() > sizeDest.iHeight) |
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366 { |
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367 rectSrc.SetHeight(sizeDest.iHeight); |
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368 } |
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369 if(rectSrc.Width() > sizeDest.iWidth) |
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370 { |
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371 rectSrc.SetWidth(sizeDest.iWidth); |
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372 } |
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373 |
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374 const TAny* dataAddressSrc = NULL; |
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375 TInt dataStrideSrc; |
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376 User::LeaveIfError(MapReadOnly(dataAddressSrc, dataStrideSrc)); |
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377 |
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378 SgUtils::TransferPixels(aBitmap->DataAddress(), aBitmap->DataStride(), pixelFormatDest, |
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379 dataAddressSrc, dataStrideSrc, pixelFormatSrc, rectSrc); |
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380 |
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381 aBitmap->EndDataAccess(); |
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382 Unmap(); |
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383 } |
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384 |
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385 /* |
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386 Helper function to obtain the address of the buffer |
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387 */ |
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388 const TUint8* CRenderTarget::DataAddress(const TAny* aStartDataAddress, const TPoint& aStartPoint, TInt aDataStride, TInt aBpp) const |
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389 { |
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390 const TInt offset = aStartPoint.iX * aBpp + aStartPoint.iY * aDataStride; |
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391 const TUint8* dataAddress = static_cast<TUint8*>(const_cast<TAny*> (aStartDataAddress)); |
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392 |
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393 return(dataAddress + offset); |
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394 } |
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395 |
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396 #if defined(__WINS__) && defined(_DEBUG) |
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397 void CRenderTarget::UpdateDebugWin() |
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398 { |
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399 if (iOsbWin) |
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400 { |
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401 const TAny* dataAddress = NULL; |
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402 TInt dataStride; |
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403 const TInt err = MapReadOnly(dataAddress, dataStride); |
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404 if(!err) |
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405 { |
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406 const TUint32* dataAddress1 = static_cast<const TUint32*>(dataAddress); |
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407 iOsbWin->Refresh(SizeInPixels(), DisplayMode(), dataAddress1); |
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408 Unmap(); |
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409 } |
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410 } |
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411 } |
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412 #endif |