1 | /* $Id: VBoxMPCommon.cpp 106061 2024-09-16 14:03:52Z vboxsync $ */
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2 | /** @file
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3 | * VBox Miniport common utils
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2011-2024 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 "VBoxMPCommon.h"
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29 | #include <VBoxVideoVBE.h>
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30 |
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31 | int VBoxMPCmnMapAdapterMemory(PVBOXMP_COMMON pCommon, void **ppv, uint32_t ulOffset, uint32_t ulSize)
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32 | {
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33 | PVBOXMP_DEVEXT pPEXT = VBoxCommonToPrimaryExt(pCommon);
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34 |
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35 | LOGF(("0x%08X[0x%X]", ulOffset, ulSize));
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36 |
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37 | if (!ulSize)
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38 | {
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39 | WARN(("Illegal length 0!"));
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40 | return ERROR_INVALID_PARAMETER;
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41 | }
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42 |
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43 | PHYSICAL_ADDRESS FrameBuffer;
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44 | FrameBuffer.QuadPart = VBoxCommonFromDeviceExt(pPEXT)->phVRAM.QuadPart + ulOffset;
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45 |
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46 | PVOID VideoRamBase = NULL;
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47 | ULONG VideoRamLength = ulSize;
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48 | VP_STATUS Status;
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49 | #ifndef VBOX_WITH_WDDM
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50 | ULONG inIoSpace = 0;
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51 |
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52 | Status = VideoPortMapMemory(pPEXT, FrameBuffer, &VideoRamLength, &inIoSpace, &VideoRamBase);
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53 | #else
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54 | NTSTATUS ntStatus = pPEXT->u.primary.DxgkInterface.DxgkCbMapMemory(pPEXT->u.primary.DxgkInterface.DeviceHandle,
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55 | FrameBuffer,
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56 | VideoRamLength,
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57 | FALSE, /* IN BOOLEAN InIoSpace */
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58 | FALSE, /* IN BOOLEAN MapToUserMode */
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59 | MmNonCached, /* IN MEMORY_CACHING_TYPE CacheType */
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60 | &VideoRamBase /*OUT PVOID *VirtualAddress*/
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61 | );
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62 | Assert(ntStatus == STATUS_SUCCESS);
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63 | /* this is what VideoPortMapMemory returns according to the docs */
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64 | Status = ntStatus == STATUS_SUCCESS ? NO_ERROR : ERROR_INVALID_PARAMETER;
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65 | #endif
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66 |
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67 | if (Status == NO_ERROR)
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68 | {
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69 | *ppv = VideoRamBase;
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70 | }
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71 |
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72 | LOGF(("rc = %d", Status));
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73 |
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74 | return (Status==NO_ERROR) ? VINF_SUCCESS:VERR_INVALID_PARAMETER;
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75 | }
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76 |
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77 | void VBoxMPCmnUnmapAdapterMemory(PVBOXMP_COMMON pCommon, void **ppv)
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78 | {
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79 | LOGF_ENTER();
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80 |
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81 | PVBOXMP_DEVEXT pPEXT = VBoxCommonToPrimaryExt(pCommon);
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82 |
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83 | if (*ppv)
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84 | {
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85 | #ifndef VBOX_WITH_WDDM
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86 | VP_STATUS Status;
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87 | Status = VideoPortUnmapMemory(pPEXT, *ppv, NULL);
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88 | VBOXMP_WARN_VPS(Status);
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89 | #else
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90 | NTSTATUS ntStatus;
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91 | ntStatus = pPEXT->u.primary.DxgkInterface.DxgkCbUnmapMemory(pPEXT->u.primary.DxgkInterface.DeviceHandle, *ppv);
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92 | Assert(ntStatus == STATUS_SUCCESS);
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93 | #endif
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94 | }
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95 |
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96 | *ppv = NULL;
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97 |
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98 | LOGF_LEAVE();
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99 | }
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100 |
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101 | bool VBoxMPCmnSyncToVideoIRQ(PVBOXMP_COMMON pCommon, PFNVIDEOIRQSYNC pfnSync, void *pvUser)
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102 | {
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103 | PVBOXMP_DEVEXT pPEXT = VBoxCommonToPrimaryExt(pCommon);
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104 | PMINIPORT_SYNCHRONIZE_ROUTINE pfnSyncMiniport = (PMINIPORT_SYNCHRONIZE_ROUTINE) pfnSync;
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105 |
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106 | #ifndef VBOX_WITH_WDDM
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107 | return !!VideoPortSynchronizeExecution(pPEXT, VpMediumPriority, pfnSyncMiniport, pvUser);
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108 | #else
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109 | BOOLEAN fRet;
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110 | DXGKCB_SYNCHRONIZE_EXECUTION pfnDxgkCbSync = pPEXT->u.primary.DxgkInterface.DxgkCbSynchronizeExecution;
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111 | HANDLE hDev = pPEXT->u.primary.DxgkInterface.DeviceHandle;
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112 | NTSTATUS ntStatus = pfnDxgkCbSync(hDev, pfnSyncMiniport, pvUser, 0, &fRet);
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113 | AssertReturn(ntStatus == STATUS_SUCCESS, false);
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114 | return !!fRet;
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115 | #endif
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116 | }
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117 |
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118 | bool VBoxMPCmnUpdatePointerShape(PVBOXMP_COMMON pCommon, PVIDEO_POINTER_ATTRIBUTES pAttrs, uint32_t cbLength)
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119 | {
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120 | const uint32_t fFlags = pAttrs->Enable & 0x0000FFFF;
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121 | const uint32_t cHotX = (pAttrs->Enable >> 16) & 0xFF;
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122 | const uint32_t cHotY = (pAttrs->Enable >> 24) & 0xFF;
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123 | const uint32_t cWidth = pAttrs->Width;
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124 | const uint32_t cHeight = pAttrs->Height;
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125 | uint8_t *pPixels = &pAttrs->Pixels[0];
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126 |
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127 | int rc = VBoxHGSMIUpdatePointerShape(&pCommon->guestCtx,
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128 | fFlags, cHotX, cHotY,
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129 | cWidth, cHeight, pPixels,
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130 | cbLength - sizeof(VIDEO_POINTER_ATTRIBUTES));
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131 | return RT_SUCCESS(rc);
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132 | }
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133 |
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134 | /**
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135 | * Reports the current mouse cursor position to the host and optionally retrieves the current position from the host.
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136 | *
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137 | * @returns VBox status code.
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138 | * @param pCommon VBoxMP common context to use.
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139 | * @param pPos Mouse position to report to the host.
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140 | * @param pxHost X position reported from the host. Optional and can be NULL.
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141 | * @param pyHost Y position reported from the host. Optional and can be NULL.
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142 | */
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143 | int VBoxMPCmnReportCursorPositionEx(PVBOXMP_COMMON pCommon, PVIDEO_POINTER_POSITION pPos, uint32_t *pxHost, uint32_t *pyHost)
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144 | {
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145 | return VBoxHGSMIReportCursorPosition(&pCommon->guestCtx, true /* fReport */, pPos->Column, pPos->Row, pxHost, pyHost);
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146 | }
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147 |
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148 | /**
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149 | * Reports the current mouse cursor position to the host.
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150 | *
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151 | * @returns VBox status code.
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152 | * @param pCommon VBoxMP common context to use.
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153 | * @param pPos Mouse position to report to the host.
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154 | */
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155 | int VBoxMPCmnReportCursorPosition(PVBOXMP_COMMON pCommon, PVIDEO_POINTER_POSITION pPos)
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156 | {
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157 | return VBoxMPCmnReportCursorPositionEx(pCommon, pPos, NULL /* pxHost */, NULL /* pyHost */);
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158 | }
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159 |
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