1 | /* $Id: VBoxMPVideoPortAPI.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
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2 | /** @file
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3 | * VBox XPDM Miniport video port api
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2011-2023 Oracle and/or its affiliates.
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8 | *
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9 | * This file is part of VirtualBox base platform packages, as
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10 | * available from https://www.virtualbox.org.
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11 | *
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12 | * This program is free software; you can redistribute it and/or
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13 | * modify it under the terms of the GNU General Public License
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14 | * as published by the Free Software Foundation, in version 3 of the
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15 | * License.
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16 | *
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17 | * This program is distributed in the hope that it will be useful, but
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18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 | * General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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24 | *
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25 | * SPDX-License-Identifier: GPL-3.0-only
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26 | */
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27 |
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28 | #include "VBoxMPInternal.h"
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29 |
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30 | /*Empty stubs*/
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31 | static VP_STATUS
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32 | vboxWaitForSingleObjectVoid(IN PVOID HwDeviceExtension, IN PVOID Object, IN PLARGE_INTEGER Timeout OPTIONAL)
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33 | {
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34 | RT_NOREF(HwDeviceExtension, Object, Timeout);
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35 | WARN(("stub called"));
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36 | return ERROR_INVALID_FUNCTION;
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37 | }
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38 |
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39 | static LONG vboxSetEventVoid(IN PVOID HwDeviceExtension, IN PEVENT pEvent)
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40 | {
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41 | RT_NOREF(HwDeviceExtension, pEvent);
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42 | WARN(("stub called"));
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43 | return 0;
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44 | }
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45 |
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46 | static VOID vboxClearEventVoid(IN PVOID HwDeviceExtension, IN PEVENT pEvent)
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47 | {
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48 | RT_NOREF(HwDeviceExtension, pEvent);
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49 | WARN(("stub called"));
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50 | }
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51 |
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52 | static VP_STATUS
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53 | vboxCreateEventVoid(IN PVOID HwDeviceExtension, IN ULONG EventFlag, IN PVOID Unused, OUT PEVENT *ppEvent)
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54 | {
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55 | RT_NOREF(HwDeviceExtension, EventFlag, Unused, ppEvent);
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56 | WARN(("stub called"));
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57 | return ERROR_INVALID_FUNCTION;
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58 | }
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59 |
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60 | static VP_STATUS
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61 | vboxDeleteEventVoid(IN PVOID HwDeviceExtension, IN PEVENT pEvent)
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62 | {
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63 | RT_NOREF(HwDeviceExtension, pEvent);
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64 | WARN(("stub called"));
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65 | return ERROR_INVALID_FUNCTION;
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66 | }
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67 |
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68 | static PVOID
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69 | vboxAllocatePoolVoid(IN PVOID HwDeviceExtension, IN VBOXVP_POOL_TYPE PoolType, IN size_t NumberOfBytes, IN ULONG Tag)
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70 | {
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71 | RT_NOREF(HwDeviceExtension, PoolType, NumberOfBytes, Tag);
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72 | WARN(("stub called"));
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73 | return NULL;
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74 | }
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75 |
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76 | static VOID vboxFreePoolVoid(IN PVOID HwDeviceExtension, IN PVOID Ptr)
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77 | {
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78 | RT_NOREF(HwDeviceExtension, Ptr);
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79 | WARN(("stub called"));
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80 | }
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81 |
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82 | static BOOLEAN
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83 | vboxQueueDpcVoid(IN PVOID HwDeviceExtension, IN PMINIPORT_DPC_ROUTINE CallbackRoutine, IN PVOID Context)
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84 | {
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85 | RT_NOREF(HwDeviceExtension, CallbackRoutine, Context);
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86 | WARN(("stub called"));
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87 | return FALSE;
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88 | }
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89 |
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90 | static VBOXVP_STATUS
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91 | vboxCreateSecondaryDisplayVoid(IN PVOID HwDeviceExtension, IN OUT PVOID SecondaryDeviceExtension, IN ULONG fFlag)
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92 | {
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93 | RT_NOREF(HwDeviceExtension, SecondaryDeviceExtension, fFlag);
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94 | WARN(("stub called"));
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95 | return ERROR_INVALID_FUNCTION;
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96 | }
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97 |
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98 | #define VP_GETPROC(dst, type, name) \
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99 | { \
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100 | pAPI->dst = (type)(pConfigInfo->VideoPortGetProcAddress)(pExt, (PUCHAR)(name)); \
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101 | }
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102 |
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103 | /*Query video port for api functions or fill with stubs if those are not supported*/
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104 | void VBoxSetupVideoPortAPI(PVBOXMP_DEVEXT pExt, PVIDEO_PORT_CONFIG_INFO pConfigInfo)
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105 | {
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106 | VBOXVIDEOPORTPROCS *pAPI = &pExt->u.primary.VideoPortProcs;
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107 | VideoPortZeroMemory(pAPI, sizeof(VBOXVIDEOPORTPROCS));
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108 |
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109 | if (VBoxQueryWinVersion(NULL) <= WINVERSION_NT4)
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110 | {
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111 | /* VideoPortGetProcAddress is available for >= win2k */
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112 | pAPI->pfnWaitForSingleObject = vboxWaitForSingleObjectVoid;
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113 | pAPI->pfnSetEvent = vboxSetEventVoid;
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114 | pAPI->pfnClearEvent = vboxClearEventVoid;
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115 | pAPI->pfnCreateEvent = vboxCreateEventVoid;
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116 | pAPI->pfnDeleteEvent = vboxDeleteEventVoid;
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117 | pAPI->pfnAllocatePool = vboxAllocatePoolVoid;
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118 | pAPI->pfnFreePool = vboxFreePoolVoid;
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119 | pAPI->pfnQueueDpc = vboxQueueDpcVoid;
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120 | pAPI->pfnCreateSecondaryDisplay = vboxCreateSecondaryDisplayVoid;
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121 | return;
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122 | }
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123 |
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124 | VP_GETPROC(pfnWaitForSingleObject, PFNWAITFORSINGLEOBJECT, "VideoPortWaitForSingleObject");
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125 | VP_GETPROC(pfnSetEvent, PFNSETEVENT, "VideoPortSetEvent");
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126 | VP_GETPROC(pfnClearEvent, PFNCLEAREVENT, "VideoPortClearEvent");
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127 | VP_GETPROC(pfnCreateEvent, PFNCREATEEVENT, "VideoPortCreateEvent");
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128 | VP_GETPROC(pfnDeleteEvent, PFNDELETEEVENT, "VideoPortDeleteEvent");
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129 |
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130 | if(pAPI->pfnWaitForSingleObject
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131 | && pAPI->pfnSetEvent
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132 | && pAPI->pfnClearEvent
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133 | && pAPI->pfnCreateEvent
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134 | && pAPI->pfnDeleteEvent)
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135 | {
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136 | pAPI->fSupportedTypes |= VBOXVIDEOPORTPROCS_EVENT;
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137 | }
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138 | else
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139 | {
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140 | pAPI->pfnWaitForSingleObject = vboxWaitForSingleObjectVoid;
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141 | pAPI->pfnSetEvent = vboxSetEventVoid;
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142 | pAPI->pfnClearEvent = vboxClearEventVoid;
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143 | pAPI->pfnCreateEvent = vboxCreateEventVoid;
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144 | pAPI->pfnDeleteEvent = vboxDeleteEventVoid;
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145 | }
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146 |
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147 | VP_GETPROC(pfnAllocatePool, PFNALLOCATEPOOL, "VideoPortAllocatePool");
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148 | VP_GETPROC(pfnFreePool, PFNFREEPOOL, "VideoPortFreePool");
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149 |
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150 | if(pAPI->pfnAllocatePool
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151 | && pAPI->pfnFreePool)
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152 | {
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153 | pAPI->fSupportedTypes |= VBOXVIDEOPORTPROCS_POOL;
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154 | }
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155 | else
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156 | {
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157 | pAPI->pfnAllocatePool = vboxAllocatePoolVoid;
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158 | pAPI->pfnFreePool = vboxFreePoolVoid;
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159 | }
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160 |
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161 | VP_GETPROC(pfnQueueDpc, PFNQUEUEDPC, "VideoPortQueueDpc");
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162 |
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163 | if(pAPI->pfnQueueDpc)
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164 | {
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165 | pAPI->fSupportedTypes |= VBOXVIDEOPORTPROCS_DPC;
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166 | }
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167 | else
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168 | {
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169 | pAPI->pfnQueueDpc = vboxQueueDpcVoid;
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170 | }
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171 |
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172 | VP_GETPROC(pfnCreateSecondaryDisplay, PFNCREATESECONDARYDISPLAY, "VideoPortCreateSecondaryDisplay");
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173 |
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174 | if (pAPI->pfnCreateSecondaryDisplay)
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175 | {
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176 | pAPI->fSupportedTypes |= VBOXVIDEOPORTPROCS_CSD;
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177 | }
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178 | else
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179 | {
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180 | pAPI->pfnCreateSecondaryDisplay = vboxCreateSecondaryDisplayVoid;
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181 | }
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182 | }
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183 |
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184 | #undef VP_GETPROC
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