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1 // Copyright (c) 2006-2009 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 // This module define the class and constants used for the different display |
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15 // mode supported. |
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16 // Include files |
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17 // |
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18 // |
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19 |
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20 /** |
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21 @file |
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22 @internalComponent |
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23 @prototype |
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24 */ |
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25 /********************************************************************/ |
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26 #ifndef __SCDRAW_H__ |
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27 #define __SCDRAW_H__ |
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28 |
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29 #if !defined(__E32SVR_H__) |
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30 #include <e32svr.h> |
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31 #endif /* __E32SVR_H__ */ |
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32 |
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33 #include <graphics/surfaceupdateclient.h> |
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34 #include "BMDRAW.H" |
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35 #include "BitDrawInterfaceId.h" |
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36 #include "bitdrawsurface.h" |
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37 #include <graphics/surface.h> |
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38 #include <pixelformats.h> |
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39 |
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40 |
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41 class TSurfaceId; |
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42 |
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43 /** |
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44 The maximum number of rectangles to be held in the update region. This must be |
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45 at least 3, since it has to be able to hold the union of two rectangles using |
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46 disjoint rectangles. |
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47 */ |
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48 const TInt KMaxUpdateRegionRectangles = 10; |
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49 |
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50 /** |
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51 * Provide common features shared between screen devices. Included by composition |
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52 * rather than inheritance, to avoid multiple inheritance of implementation. |
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53 */ |
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54 NONSHARABLE_CLASS(CScreenDeviceHelper) : public CBase |
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55 { |
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56 public: |
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57 // Default constructor. |
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58 TInt Construct(TInt aScreenNo, TUidPixelFormat aPixelFormat, TUint aHalMode); |
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59 ~CScreenDeviceHelper(); |
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60 |
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61 inline TInt ScreenNumber() const { return iSurface.iInternal[TSurfaceId::TScreenSurfaceUsage::EScreenField]; } |
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62 |
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63 void Update(); |
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64 void Update(const TRegion& aRegion); |
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65 void UpdateRegion(const TRect& aRect); |
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66 void ResetUpdateRegion(); |
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67 void NotifyWhenAvailable(TRequestStatus& aStatus); |
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68 |
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69 void GetSurface(TSurfaceId& aSid) const ; |
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70 TUint DeviceOrientationsAvailable(const TSize& aScreenSize) const ; |
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71 TUint BytesPerScanline() const; |
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72 void* AddressFirstPixel() const; |
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73 |
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74 TBool SetDeviceOrientation(TDeviceOrientation aOrientation, TSize& aNewSize); |
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75 |
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76 TDeviceOrientation DeviceOrientation() const ; |
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77 TBool DeviceFlipped() const; |
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78 |
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79 TInt HorzTwipsPerThousandPixels(const TSize& aPixels)const; |
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80 TInt VertTwipsPerThousandPixels(const TSize& aPixels)const; |
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81 |
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82 protected: |
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83 template <class Type> Type SecondIfFlipped(Type aValueUnFlipped,Type aValueFlipped)const |
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84 { |
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85 if (DeviceFlipped()) |
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86 { |
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87 return aValueFlipped; |
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88 } |
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89 else |
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90 { |
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91 return aValueUnFlipped; |
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92 } |
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93 } |
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94 TBool SetDeviceFlipMode(TBool aFlip, TSize& aNewSize); |
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95 inline static TBool ConvertFlip(TDeviceOrientation aOrientation) |
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96 { |
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97 return (aOrientation&(EDeviceOrientation90CW|EDeviceOrientation270CW))!=0; |
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98 } |
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99 |
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100 private: |
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101 TSurfaceId iSurface; |
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102 TDeviceOrientation iAssignedOrientation; |
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103 RSurfaceUpdateSession iSurfaceUpdateSession; |
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104 TRegionFix<KMaxUpdateRegionRectangles> iUpdateRegion; |
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105 RChunk iChunk; |
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106 TBool iHasChunk; |
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107 }; |
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108 |
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109 /** |
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110 This template class is a helper to genericise the common implementation of the screen device. |
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111 This class implements all the non-specific implementation. |
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112 **/ |
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113 template <class TCDrawXxxBppBitmap> |
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114 class CGenericScreenDevice : public TCDrawXxxBppBitmap , public MSurfaceId |
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115 { |
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116 public: |
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117 typedef TCDrawXxxBppBitmap CDrawXxxBppBitmap; |
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118 virtual TInt InitScreen() ; |
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119 virtual TInt ConstructScreen(TInt aScreenNo, TAny *aBitmapAddress, TSize aSize, TInt aHalMode) ; |
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120 virtual void SetDisplayMode(CFbsDrawDevice*); |
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121 virtual TInt HorzTwipsPerThousandPixels() const; |
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122 virtual TInt VertTwipsPerThousandPixels() const; |
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123 |
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124 virtual void Update(); |
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125 virtual void Update(const TRegion& aRegion); |
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126 virtual void UpdateRegion(const TRect& aRect); |
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127 |
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128 virtual TInt GetInterface(TInt aInterfaceId, TAny*& aInterface); |
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129 |
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130 // From MSurfaceId |
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131 virtual void GetSurface(TSurfaceId& aSid) const ; |
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132 virtual TUint DeviceOrientationsAvailable() const ; |
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133 virtual TDeviceOrientation DeviceOrientation() const ; |
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134 protected: |
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135 //derived classes must implement virtual void SetSize(const TSize& aSize); |
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136 //derived classes must implement virtual TBool SetDeviceOrientation(TDeviceOrientation aOrientation)=0; |
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137 CScreenDeviceHelper iHelper; |
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138 |
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139 }; |
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140 |
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141 /** |
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142 This template class is a helper to genericise the common implementation of the screen device. |
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143 This class implements the "bits per pixel" specific implementation for modes that do not have GUIDs, |
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144 but probably have palettes instead. |
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145 params: |
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146 - CDrawXxxBppBitmap The base pixel class that provides most of the drawing functionality. |
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147 - displayMode The symbian enumeraion for the mode - used when no GUID is defined. |
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148 - pixelsPerWord Number of pixels packed in a 32-bit word |
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149 **/ |
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150 template <class TCDrawXxxBppBitmap,TDisplayMode displayMode,TInt pixelsPerWord> |
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151 class CPalettizedScreenDevice : public CGenericScreenDevice<TCDrawXxxBppBitmap> |
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152 { |
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153 public: |
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154 typedef CGenericScreenDevice<TCDrawXxxBppBitmap> CGenericScreenDevice; |
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155 virtual TInt ConstructScreen(TInt aScreenNo, TAny *aBitmapAddress, TSize aSize, TInt aHalMode) ; |
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156 virtual TBool SetDeviceOrientation(TDeviceOrientation aOrientation); |
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157 protected: |
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158 virtual void SetSize(const TSize& aSize); |
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159 }; |
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160 |
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161 /** |
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162 This template class is a helper to genericise the common implementation of the screen device. |
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163 This class implements the "bits per pixel" specific implementation for modes that do have GUIDs. |
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164 params: |
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165 - CDrawXxxBppBitmap The base pixel class that provides most of the drawing functionality. |
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166 - guidMode The GUID for the mode - used by GCE |
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167 - pixelsPerWord Number of pixels packed in a 32-bit word |
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168 **/ |
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169 template <class TCDrawXxxBppBitmap,TUidPixelFormat guidMode,TInt pixelsPerWord> |
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170 class CGuidScreenDevice : public CGenericScreenDevice<TCDrawXxxBppBitmap> |
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171 { |
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172 public: |
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173 typedef ::CGenericScreenDevice<TCDrawXxxBppBitmap> CGenericScreenDevice; |
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174 virtual TInt ConstructScreen(TInt aScreenNo, TAny *aBitmapAddress, TSize aSize, TInt aHalMode) ; |
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175 virtual TBool SetDeviceOrientation(TDeviceOrientation aOrientation); |
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176 protected: |
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177 virtual void SetSize(const TSize& aSize); |
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178 }; |
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179 |
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180 /** |
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181 @internalComponent |
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182 */ |
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183 class CDrawOneBppScreenBitmap : public CPalettizedScreenDevice<CDrawOneBppBitmap,EGray2,32> |
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184 {}; |
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185 |
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186 /** |
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187 @internalComponent |
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188 */ |
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189 class CDrawTwoBppScreenBitmap : public CPalettizedScreenDevice<CDrawTwoBppBitmap,EGray4,16> |
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190 {}; |
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191 |
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192 /** |
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193 @internalComponent |
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194 */ |
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195 class CDrawFourBppScreenBitmapGray : public CPalettizedScreenDevice<CDrawFourBppBitmapGray,EGray16,8> |
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196 {}; |
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197 |
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198 /** |
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199 @internalComponent |
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200 */ |
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201 class CDrawFourBppScreenBitmapColor : public CPalettizedScreenDevice<CDrawFourBppBitmapColor,EColor16,8> |
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202 {}; |
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203 |
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204 /** |
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205 @internalComponent |
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206 */ |
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207 class CDrawEightBppScreenBitmapGray : public CPalettizedScreenDevice<CDrawEightBppBitmapGray,EGray256,4> |
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208 {}; |
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209 |
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210 /** |
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211 @internalComponent |
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212 */ |
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213 class CDrawEightBppScreenBitmapColor : public CPalettizedScreenDevice<CDrawEightBppBitmapColor,EColor256,4> |
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214 {}; |
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215 |
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216 /** |
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217 @internalComponent |
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218 */ |
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219 class CDrawTwelveBppScreenBitmapColor : public CGuidScreenDevice<CDrawTwelveBppBitmap,EUidPixelFormatXRGB_4444,2> |
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220 {}; |
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221 |
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222 /** |
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223 @internalComponent |
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224 */ |
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225 class CDrawSixteenBppScreenBitmap : public CGuidScreenDevice<CDrawSixteenBppBitmap,EUidPixelFormatRGB_565,2> |
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226 {}; |
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227 |
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228 /** |
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229 @internalComponent |
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230 */ |
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231 class CDrawUTwentyFourBppScreenBitmap : public CGuidScreenDevice<CDrawUTwentyFourBppBitmap,EUidPixelFormatXRGB_8888,1> |
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232 {}; |
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233 |
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234 /** |
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235 @internalComponent |
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236 */ |
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237 class CDrawThirtyTwoBppScreenBitmapAlpha : public CGuidScreenDevice<CDrawThirtyTwoBppBitmapAlpha,EUidPixelFormatARGB_8888,1> |
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238 {}; |
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239 |
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240 |
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241 /** |
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242 @internalComponent |
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243 */ |
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244 class CDrawThirtyTwoBppScreenBitmapAlphaPM : public CGuidScreenDevice<CDrawThirtyTwoBppBitmapAlphaPM,EUidPixelFormatARGB_8888_PRE,1> |
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245 {}; |
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246 |
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247 |
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248 #endif /* __SCDRAW_H__ */ |
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249 |