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1 // Copyright (c) 1997-2009 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 // WINS platform |
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15 // |
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16 // |
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17 |
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18 #include <hal.h> |
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19 #include "SCDRAW.H" |
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20 #include "ScreenInfo.h" |
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21 #include <graphics/gdi/gdiconsts.h> |
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22 |
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23 /** |
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24 Creates an instance of CFbsDrawDevice class. |
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25 @param aScreenNo Screen number |
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26 @param aDispMode Display mode |
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27 @param aScreenInfo Screen parameters: video memory address and screen size |
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28 @return A pointer to the created CFbsDrawDevice object |
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29 @leave System-wide error code including KErrNoMemory |
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30 @internalComponent |
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31 */ |
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32 static CFbsDrawDevice* CreateInstanceL(TInt aScreenNo, |
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33 TDisplayMode aDispMode, |
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34 const TScreenInfo& aScreenInfo) |
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35 { |
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36 TUint depths = 0; |
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37 // As multiple screens are possible, the (optional) second parameter is necessary here |
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38 // to find the color depth specific to this screen. |
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39 EmulatorColorDepth(depths, aScreenNo); |
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40 ASSERT(depths); |
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41 |
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42 CFbsDrawDevice* drawDevice = NULL; |
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43 |
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44 switch(aDispMode) |
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45 { |
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46 case EGray2: |
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47 if (!(depths & KEmulGray2)) |
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48 User::Leave(KErrNotSupported); |
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49 drawDevice = new(ELeave) CDrawOneBppScreenBitmap; |
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50 CleanupStack::PushL(drawDevice); |
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51 User::LeaveIfError((static_cast<CDrawOneBppScreenBitmap*> (drawDevice)) ->ConstructScreen(aScreenNo, |
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52 aScreenInfo.iAddress, |
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53 aScreenInfo.iSize)); |
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54 break; |
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55 case EGray4: |
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56 if (!(depths & KEmulGray4)) |
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57 User::Leave(KErrNotSupported); |
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58 drawDevice = new(ELeave) CDrawTwoBppScreenBitmap; |
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59 CleanupStack::PushL(drawDevice); |
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60 User::LeaveIfError((static_cast<CDrawTwoBppScreenBitmap*> (drawDevice)) ->ConstructScreen(aScreenNo, |
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61 aScreenInfo.iAddress, |
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62 aScreenInfo.iSize)); |
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63 break; |
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64 case EGray16: |
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65 if (!(depths & KEmulGray16)) |
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66 User::Leave(KErrNotSupported); |
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67 drawDevice = new(ELeave) CDrawFourBppScreenBitmapGray; |
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68 CleanupStack::PushL(drawDevice); |
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69 User::LeaveIfError((static_cast<CDrawFourBppScreenBitmapGray*> (drawDevice)) ->ConstructScreen(aScreenNo, |
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70 aScreenInfo.iAddress, |
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71 aScreenInfo.iSize)); |
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72 break; |
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73 case EGray256: |
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74 if (!(depths & KEmulGray256)) |
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75 User::Leave(KErrNotSupported); |
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76 drawDevice = new(ELeave) CDrawEightBppScreenBitmapGray; |
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77 CleanupStack::PushL(drawDevice); |
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78 User::LeaveIfError((static_cast<CDrawEightBppScreenBitmapGray*> (drawDevice)) ->ConstructScreen(aScreenNo, |
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79 aScreenInfo.iAddress, |
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80 aScreenInfo.iSize)); |
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81 break; |
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82 case EColor16: |
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83 if (!(depths & KEmulColor16)) |
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84 User::Leave(KErrNotSupported); |
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85 drawDevice = new(ELeave) CDrawFourBppScreenBitmapColor; |
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86 CleanupStack::PushL(drawDevice); |
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87 User::LeaveIfError((static_cast<CDrawFourBppScreenBitmapColor*> (drawDevice)) ->ConstructScreen(aScreenNo, |
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88 aScreenInfo.iAddress, |
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89 aScreenInfo.iSize)); |
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90 break; |
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91 case EColor256: |
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92 if (!(depths & KEmulColor256)) |
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93 User::Leave(KErrNotSupported); |
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94 drawDevice = new(ELeave) CDrawEightBppScreenBitmapColor; |
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95 CleanupStack::PushL(drawDevice); |
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96 User::LeaveIfError((static_cast<CDrawEightBppScreenBitmapColor*> (drawDevice)) ->ConstructScreen(aScreenNo, |
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97 aScreenInfo.iAddress, |
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98 aScreenInfo.iSize)); |
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99 break; |
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100 case EColor4K: |
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101 if (!(depths & KEmulColor4K)) |
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102 User::Leave(KErrNotSupported); |
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103 drawDevice = new(ELeave) CDrawTwelveBppScreenBitmap; |
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104 CleanupStack::PushL(drawDevice); |
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105 User::LeaveIfError((static_cast<CDrawTwelveBppScreenBitmap*> (drawDevice)) ->ConstructScreen(aScreenNo, |
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106 aScreenInfo.iAddress, |
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107 aScreenInfo.iSize)); |
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108 break; |
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109 case EColor64K: |
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110 if (!(depths & KEmulColor64K)) |
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111 User::Leave(KErrNotSupported); |
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112 drawDevice = new(ELeave) CDrawSixteenBppScreenBitmap; |
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113 CleanupStack::PushL(drawDevice); |
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114 User::LeaveIfError((static_cast<CDrawSixteenBppScreenBitmap*> (drawDevice)) ->ConstructScreen(aScreenNo, |
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115 aScreenInfo.iAddress, |
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116 aScreenInfo.iSize)); |
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117 break; |
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118 case EColor16M: |
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119 if (!(depths & KEmulColor16M)) |
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120 User::Leave(KErrNotSupported); |
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121 drawDevice = new(ELeave) CDrawTwentyFourBppScreenBitmap; |
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122 CleanupStack::PushL(drawDevice); |
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123 User::LeaveIfError((static_cast<CDrawTwentyFourBppScreenBitmap*> (drawDevice)) ->ConstructScreen(aScreenNo, |
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124 aScreenInfo.iAddress, |
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125 aScreenInfo.iSize)); |
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126 break; |
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127 case EColor16MU: |
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128 if (!(depths & KEmulColor16M)) |
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129 User::Leave(KErrNotSupported); |
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130 drawDevice = new(ELeave) CDrawUTwentyFourBppScreenBitmap; |
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131 CleanupStack::PushL(drawDevice); |
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132 User::LeaveIfError((static_cast<CDrawUTwentyFourBppScreenBitmap*> (drawDevice)) ->ConstructScreen(aScreenNo, |
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133 aScreenInfo.iAddress, |
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134 aScreenInfo.iSize)); |
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135 break; |
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136 case EColor16MA: |
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137 if (!(depths & KEmulColor16M)) |
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138 User::Leave(KErrNotSupported); |
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139 drawDevice = new(ELeave) CDrawThirtyTwoBppScreenBitmapAlpha; |
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140 CleanupStack::PushL(drawDevice); |
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141 User::LeaveIfError((static_cast<CDrawThirtyTwoBppScreenBitmapAlpha*> (drawDevice)) ->ConstructScreen(aScreenNo, |
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142 aScreenInfo.iAddress, |
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143 aScreenInfo.iSize)); |
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144 break; |
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145 case EColor16MAP: |
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146 if (!(depths & KEmulColor16M)) |
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147 User::Leave(KErrNotSupported); |
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148 drawDevice = new(ELeave) CDrawThirtyTwoBppScreenBitmapAlphaPM; |
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149 CleanupStack::PushL(drawDevice); |
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150 User::LeaveIfError((static_cast<CDrawThirtyTwoBppScreenBitmapAlphaPM*> (drawDevice)) ->ConstructScreen(aScreenNo, |
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151 aScreenInfo.iAddress, |
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152 aScreenInfo.iSize)); |
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153 break; |
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154 default: |
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155 User::Leave(KErrNotSupported); |
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156 } |
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157 |
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158 CleanupStack::Pop(); // drawDevice |
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159 return drawDevice; |
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160 } |
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161 |
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162 /** |
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163 @deprecated Use NewScreenDeviceL(TInt aScreenNo, TDisplayMode aDispMode) |
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164 */ |
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165 EXPORT_C CFbsDrawDevice* CFbsDrawDevice::NewScreenDeviceL(TScreenInfoV01 aInfo, |
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166 TDisplayMode aDispMode) |
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167 { |
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168 __ASSERT_ALWAYS(aInfo.iScreenAddressValid && aInfo.iScreenAddress, Panic(EScreenDriverPanicInvalidWindowHandle)); |
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169 TScreenInfo screenInfo(aInfo.iScreenAddress, aInfo.iScreenSize); |
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170 return ::CreateInstanceL(KDefaultScreenNo, aDispMode, screenInfo); |
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171 } |
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172 |
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173 /** |
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174 Creates a new screen device instance, which implements CFbsDrawDevice interface. |
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175 The method has to be implemented for each type of supported video hardware. |
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176 @param aScreenNo Screen number |
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177 @param aDispMode Requested display mode |
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178 @return A pointer to just created screen device, which implements CFbsDrawDevice interface |
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179 @leave KErrNoMemory Not enough memory |
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180 KErrNotSupported The requested screen device type is not supported |
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181 */ |
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182 EXPORT_C CFbsDrawDevice* CFbsDrawDevice::NewScreenDeviceL(TInt aScreenNo, |
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183 TDisplayMode aDispMode) |
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184 { |
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185 TInt address = 0, width = 0, height = 0; |
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186 User::LeaveIfError(HAL::Get(aScreenNo, HALData::EDisplayMemoryAddress, address)); |
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187 User::LeaveIfError(HAL::Get(aScreenNo, HALData::EDisplayXPixels, width)); |
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188 User::LeaveIfError(HAL::Get(aScreenNo, HALData::EDisplayYPixels, height)); |
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189 __ASSERT_ALWAYS(width > 0 && height > 0 && address != 0, Panic(EScreenDriverPanicInvalidHalValue)); |
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190 TScreenInfo screenInfo(reinterpret_cast <TAny*> (address), TSize(width, height)); |
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191 return ::CreateInstanceL(aScreenNo, aDispMode, screenInfo); |
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192 } |
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193 |
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194 /** |
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195 Depending on the current graphics hardware this |
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196 will return one of the 16M video modes defined in |
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197 TDisplayMode, or ENone if a 16M video mode is not supported. |
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198 @see TDisplayMode |
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199 @return a 16M display mode or ENone. |
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200 */ |
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201 EXPORT_C TDisplayMode CFbsDrawDevice::DisplayMode16M() |
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202 { |
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203 return EColor16MU; |
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204 } |