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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 the License "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 // Overview: |
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15 // Test the video driver kernel extension that provides chunk handle to access video memory. |
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16 // API Information: |
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17 // HAL, UserSvr |
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18 // Details: |
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19 // - Check that the "old" GetMemoryAddress function still works, for legacy compatibility. |
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20 // - Check that we can get a chunk and that we can read/write the memory belonging to that chunk. |
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21 // - Check that asking for a DisplayMemoryHandle twice gives the same piece of memory. |
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22 // - Test that the same memory is available to a second process, by starting second process and |
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23 // the second process can write to memory. Validate by confirming that the value in the second process |
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24 // is changed. |
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25 // Platforms/Drives/Compatibility: |
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26 // All. |
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27 // Assumptions/Requirement/Pre-requisites: |
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28 // Failures and causes: |
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29 // Base Port information: |
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30 // |
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31 // |
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32 |
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33 #include <e32test.h> |
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34 #include <videodriver.h> |
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35 #include <hal.h> |
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36 #include <e32svr.h> |
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37 #include <dispchannel.h> |
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38 #include "t_videomemory.h" |
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39 |
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40 LOCAL_D RTest test(_L("T_VIDEOMEMORY")); |
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41 |
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42 #ifndef __WINS__ |
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43 #define DUMP(x) test.Printf(_L(#x"= %d =0x%08x\n"), x, x) |
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44 #endif |
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45 |
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46 |
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47 LOCAL_C void RunTestsForScreen(TInt aScreenID) |
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48 { |
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49 |
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50 TInt ret = KErrNone; |
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51 |
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52 #ifdef __WINS__ |
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53 RDisplayChannel displayChannel; |
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54 |
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55 test.Next(_L("Open Display Driver")); |
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56 |
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57 _LIT(KDisplayDriver, "display0"); |
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58 ret = User::LoadLogicalDevice(KDisplayDriver); |
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59 test(KErrNone == ret || KErrAlreadyExists == ret); |
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60 |
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61 ret = displayChannel.Open(aScreenID); |
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62 test(KErrNone == ret); |
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63 |
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64 #endif |
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65 |
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66 test.Next(_L("Checking Display Memory Address")); |
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67 |
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68 // This is the real basic form of test: |
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69 // Get the display memory address from the HAL. |
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70 // Check that it's not zero - that would be invalid memory. |
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71 // Try to write to the memory - it should not give a page-fault/crash. |
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72 // Try to read the memory - we should get the same value as we wrote. |
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73 |
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74 TInt memoryAddress=0; |
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75 volatile TUint32 *pMemory = 0; |
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76 ret = HAL::Get(aScreenID, HAL::EDisplayMemoryAddress, memoryAddress); |
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77 test (KErrNone == ret || KErrNotSupported == ret); |
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78 |
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79 if (KErrNone == ret) |
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80 { |
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81 test.Printf(_L("Display Memory Address = %08x\n"), memoryAddress); |
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82 // Now check that we can write to memoryAddress: |
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83 test (memoryAddress != 0); |
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84 pMemory = reinterpret_cast<TUint32 *>(memoryAddress); |
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85 *pMemory = KTestValue1; |
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86 test(KTestValue1 == *pMemory); |
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87 } |
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88 else |
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89 { |
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90 test.Printf(_L("Memory Address not available from HAL\n")); |
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91 } |
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92 |
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93 // Second basic test. Use the HAL to fetch a handle |
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94 // to the display memory. |
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95 // Check that the handle is not zero. |
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96 // Get the base-address of the chunk. |
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97 // Write this base address with a new value. |
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98 // Read with the chunk base address to see that teh new value is there. |
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99 // Read the memory address from the above test and check that it changed |
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100 // to the new value. |
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101 // Note that the memory address from above test MAY NOT BE SET - so |
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102 // check to see if it's non-zero first. |
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103 |
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104 test.Next(_L("Checking Display Handle")); |
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105 TInt handle = 0; |
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106 volatile TUint32 *pChunkBase = 0; |
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107 RChunk chunk; |
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108 ret = HAL::Get(aScreenID, HALData::EDisplayMemoryHandle, handle); |
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109 test ((KErrNone == ret || KErrNotSupported == ret)); |
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110 if (KErrNone == ret) |
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111 { |
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112 // Handle should not be zero. |
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113 test(0 != handle); |
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114 ret = chunk.SetReturnedHandle(handle); |
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115 test(KErrNone == ret); |
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116 |
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117 pChunkBase = reinterpret_cast<TUint32 *>(chunk.Base()); |
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118 test.Printf(_L("Display Memory Address = %08x\n"), reinterpret_cast<TUint>(pChunkBase)); |
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119 *pChunkBase = KTestValue2; |
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120 test(KTestValue2 == *pChunkBase); |
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121 // We should see the new value through the pMemory pointer! |
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122 if (pMemory) |
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123 { |
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124 test(KTestValue2 == *pMemory); |
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125 } |
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126 |
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127 } |
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128 else |
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129 { |
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130 test.Printf(_L("Memory Handle not available from HAL - no point in further testing\n")); |
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131 return; |
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132 } |
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133 |
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134 |
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135 // Check that we can write to more than the first bit of memory. |
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136 test.Next(_L("Check that we can write to \"all\" of the memory")); |
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137 // First, find the mode with the biggest number of bits per pixel: |
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138 TInt totalModes; |
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139 ret = HAL::Get(aScreenID, HAL::EDisplayNumModes, totalModes); |
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140 test (KErrNone == ret); |
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141 TInt biggestMode = 0; |
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142 TInt maxBitsPerPixel = 0; |
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143 for(TInt mode = 0; mode < totalModes; mode++) |
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144 { |
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145 TInt bitsPerPixel = mode; |
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146 ret = HAL::Get(aScreenID, HAL::EDisplayBitsPerPixel, bitsPerPixel); |
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147 test (KErrNone == ret); |
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148 if (bitsPerPixel > maxBitsPerPixel) |
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149 { |
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150 maxBitsPerPixel = bitsPerPixel; |
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151 biggestMode = mode; |
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152 } |
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153 } |
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154 |
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155 TInt offsetToFirstPixel = biggestMode; |
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156 ret = HAL::Get(aScreenID, HALData::EDisplayOffsetToFirstPixel, offsetToFirstPixel); |
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157 test(KErrNone == ret); |
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158 |
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159 TInt stride = biggestMode; |
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160 ret = HAL::Get(aScreenID, HALData::EDisplayOffsetBetweenLines, stride); |
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161 test(KErrNone == ret); |
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162 |
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163 TInt yPixels = biggestMode; |
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164 ret = HAL::Get(aScreenID, HALData::EDisplayYPixels, yPixels); |
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165 test(KErrNone == ret); |
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166 |
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167 // Note this is no attempt to be precise. xPixels is not |
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168 TUint maxByte = offsetToFirstPixel + stride * yPixels - sizeof(TUint32); |
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169 |
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170 volatile TUint32 *memPtr = reinterpret_cast<volatile TUint32 *>(reinterpret_cast<volatile TUint8 *>(pChunkBase) + maxByte); |
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171 *memPtr = KTestValue1; |
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172 test(KTestValue1 == *memPtr); |
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173 |
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174 |
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175 // Ask for a second handle and see that this also points to the same bit of memory. |
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176 test.Next(_L("Checking Display Handle second time")); |
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177 volatile TUint32 *pChunkBase2 = 0; |
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178 ret = HAL::Get(aScreenID, HALData::EDisplayMemoryHandle, handle); |
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179 test ((KErrNone == ret || KErrNotSupported == ret)); |
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180 if (KErrNone == ret) |
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181 { |
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182 // Handle should not be zero! |
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183 test(0 != handle); |
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184 RChunk chunk2; |
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185 ret = chunk2.SetReturnedHandle(handle); |
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186 test(KErrNone == ret); |
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187 |
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188 pChunkBase2 = reinterpret_cast<TUint32 *>(chunk2.Base()); |
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189 test.Printf(_L("Display Memory Address = %08x\n"), reinterpret_cast<TUint>(pChunkBase)); |
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190 test(KTestValue2 == *pChunkBase2); |
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191 *pChunkBase2 = KTestValue3; |
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192 test(KTestValue3 == *pChunkBase2); |
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193 chunk2.Close(); |
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194 } |
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195 |
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196 test.Next(_L("Checking Display Handle using second process")); |
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197 |
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198 // Create a process, let it find the handle of the memory, then read it, and write it. |
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199 // Check that the value we have is the new value: KTestValue3. |
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200 _LIT(KProcName, "t_videomemprocess.exe"); |
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201 RProcess process; |
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202 |
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203 ret = process.Create(KProcName, KNullDesC); |
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204 test(KErrNone == ret); |
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205 |
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206 TRequestStatus procStatus; |
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207 process.Logon(procStatus); |
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208 process.SetParameter(12, aScreenID); |
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209 process.Resume(); |
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210 User::WaitForRequest(procStatus); |
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211 |
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212 test.Next(_L("Checking that second process updated video memory")); |
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213 // Check that we got the new value. |
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214 test(KTestValue4 == *pChunkBase); |
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215 |
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216 chunk.Close(); |
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217 |
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218 #ifdef __WINS__ |
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219 displayChannel.Close(); |
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220 #endif |
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221 |
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222 // Now for some negative tests: Attempt to get a handle for a closes display. |
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223 test.Next(_L("Negative test: Check that we CAN NOT use closed screen")); |
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224 ret = HAL::Get(aScreenID, HALData::EDisplayMemoryHandle, handle); |
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225 test (KErrNone != ret); |
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226 } |
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227 |
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228 |
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229 |
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230 LOCAL_C void NegativeTests(TInt aMaxScreens) |
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231 { |
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232 TInt handle; |
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233 TInt ret; |
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234 // Another few negative tests: Try invalid screen numbers. |
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235 test.Next(_L("Negative tests: Invalid screen ID's")); |
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236 ret = HAL::Get(aMaxScreens, HALData::EDisplayMemoryHandle, handle); |
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237 test (KErrNone != ret); |
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238 |
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239 ret = HAL::Get(aMaxScreens+1, HALData::EDisplayMemoryHandle, handle); |
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240 test (KErrNone != ret); |
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241 |
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242 ret = HAL::Get(4718, HALData::EDisplayMemoryHandle, handle); |
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243 test (KErrNone != ret); |
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244 |
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245 ret = HAL::Get(-1, HALData::EDisplayMemoryHandle, handle); |
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246 test (KErrNone != ret); |
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247 } |
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248 |
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249 |
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250 |
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251 GLDEF_C TInt E32Main() |
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252 // |
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253 // |
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254 { |
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255 |
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256 test.Title(); |
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257 // |
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258 #if defined(__EPOC32__) && defined(__CPU_X86) |
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259 test.Printf(_L("Doesn't run on X86\n")); |
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260 #else |
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261 |
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262 test.Start(_L("Testing Video Memory HAL interfaces")); |
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263 |
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264 TInt screens = 0; |
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265 TInt ret=HAL::Get(HAL::EDisplayNumberOfScreens, screens); |
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266 test((KErrNone == ret)); |
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267 // We expect that there is at least ONE screen. |
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268 test((screens > 0)); |
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269 |
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270 for(TInt i=0;i<screens;i++) |
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271 { |
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272 RunTestsForScreen(i); |
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273 } |
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274 |
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275 NegativeTests(screens); |
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276 #endif |
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277 |
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278 return KErrNone; |
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279 } |