| 1 | /** @file
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| 2 | *
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| 3 | * VBoxGuest -- VirtualBox Win 2000/XP guest video driver
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| 4 | *
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| 5 | * Copyright (C) 2006-2007 innotek GmbH
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| 6 | *
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| 7 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 8 | * available from http://www.virtualbox.org. This file is free software;
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| 9 | * you can redistribute it and/or modify it under the terms of the GNU
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| 10 | * General Public License as published by the Free Software Foundation,
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| 11 | * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
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| 12 | * distribution. VirtualBox OSE is distributed in the hope that it will
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| 13 | * be useful, but WITHOUT ANY WARRANTY of any kind.
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| 14 | *
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| 15 | * If you received this file as part of a commercial VirtualBox
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| 16 | * distribution, then only the terms of your commercial VirtualBox
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| 17 | * license agreement apply instead of the previous paragraph.
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| 18 | *
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| 19 | */
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| 20 |
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| 21 | // enable backdoor logging
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| 22 | //#define LOG_ENABLED
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| 23 |
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| 24 | extern "C"
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| 25 | {
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| 26 | #include <ntddk.h>
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| 27 | }
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| 28 |
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| 29 | #include <VBox/err.h>
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| 30 |
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| 31 | #include <VBox/VBoxGuestLib.h>
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| 32 |
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| 33 | /* the video miniport headers not compatible with the NT DDK headers */
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| 34 | typedef struct _VIDEO_POINTER_ATTRIBUTES
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| 35 | {
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| 36 | ULONG Flags;
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| 37 | ULONG Width;
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| 38 | ULONG Height;
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| 39 | ULONG WidthInBytes;
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| 40 | ULONG Enable;
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| 41 | SHORT Column;
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| 42 | SHORT Row;
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| 43 | UCHAR Pixels[1];
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| 44 | } VIDEO_POINTER_ATTRIBUTES, *PVIDEO_POINTER_ATTRIBUTES;
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| 45 | #define VIDEO_MODE_COLOR_POINTER 0x04 // 1 if a color hardware pointer is
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| 46 | // supported.
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| 47 |
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| 48 | #include "Helper.h"
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| 49 |
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| 50 | /**
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| 51 | * Globals
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| 52 | */
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| 53 | /* note: should not do that but we can't use these datatypes in the global header */
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| 54 |
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| 55 | #pragma alloc_text(PAGE, vboxQueryDisplayRequest)
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| 56 | #pragma alloc_text(PAGE, vboxLikesVideoMode)
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| 57 | #pragma alloc_text(PAGE, vboxGetHeightReduction)
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| 58 | #pragma alloc_text(PAGE, vboxQueryPointerPos)
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| 59 | #pragma alloc_text(PAGE, vboxQueryHostWantsAbsolute)
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| 60 | #pragma alloc_text(PAGE, vboxQueryWinVersion)
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| 61 |
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| 62 | BOOLEAN vboxQueryDisplayRequest(uint32_t *xres, uint32_t *yres, uint32_t *bpp)
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| 63 | {
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| 64 | BOOLEAN bRC = FALSE;
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| 65 |
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| 66 | dprintf(("VBoxVideo::vboxQueryDisplayRequest: xres = %p, yres = %p bpp = %p\n", xres, yres, bpp));
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| 67 |
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| 68 | VMMDevDisplayChangeRequest *req = NULL;
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| 69 |
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| 70 | int rc = VbglGRAlloc ((VMMDevRequestHeader **)&req, sizeof (VMMDevDisplayChangeRequest), VMMDevReq_GetDisplayChangeRequest);
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| 71 |
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| 72 | if (VBOX_FAILURE(rc))
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| 73 | {
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| 74 | dprintf(("VBoxVideo::vboxQueryDisplayRequest: ERROR allocating request, rc = %Vrc\n", rc));
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| 75 | }
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| 76 | else
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| 77 | {
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| 78 | req->eventAck = 0;
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| 79 |
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| 80 | rc = VbglGRPerform (&req->header);
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| 81 |
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| 82 | if (VBOX_SUCCESS(rc) && VBOX_SUCCESS(req->header.rc))
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| 83 | {
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| 84 | if (xres)
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| 85 | *xres = req->xres;
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| 86 | if (yres)
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| 87 | *yres = req->yres;
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| 88 | if (bpp)
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| 89 | *bpp = req->bpp;
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| 90 | bRC = TRUE;
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| 91 | }
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| 92 | else
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| 93 | {
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| 94 | dprintf(("VBoxVideo::vboxQueryDisplayRequest: ERROR querying display request from VMMDev."
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| 95 | "rc = %Vrc, VMMDev rc = %Vrc\n", rc, req->header.rc));
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| 96 | }
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| 97 |
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| 98 | VbglGRFree (&req->header);
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| 99 | }
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| 100 |
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| 101 | return bRC;
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| 102 | }
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| 103 |
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| 104 | BOOLEAN vboxLikesVideoMode(uint32_t width, uint32_t height, uint32_t bpp)
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| 105 | {
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| 106 | BOOLEAN bRC = FALSE;
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| 107 |
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| 108 | dprintf(("VBoxVideo::vboxLikesVideoMode: width: %d, height: %d, bpp: %d\n", width, height, bpp));
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| 109 |
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| 110 | VMMDevVideoModeSupportedRequest *req = NULL;
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| 111 |
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| 112 | int rc = VbglGRAlloc((VMMDevRequestHeader**)&req, sizeof(VMMDevVideoModeSupportedRequest), VMMDevReq_VideoModeSupported);
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| 113 | if (VBOX_FAILURE(rc))
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| 114 | {
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| 115 | dprintf(("VBoxVideo::vboxLikesVideoMode: ERROR allocating request, rc = %Vrc\n", rc));
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| 116 | }
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| 117 | else
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| 118 | {
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| 119 | req->width = width;
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| 120 | req->height = height;
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| 121 | req->bpp = bpp;
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| 122 | rc = VbglGRPerform(&req->header);
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| 123 | if (VBOX_SUCCESS(rc) && VBOX_SUCCESS(req->header.rc))
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| 124 | {
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| 125 | bRC = req->fSupported;
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| 126 | }
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| 127 | else
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| 128 | {
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| 129 | dprintf(("VBoxVideo::vboxLikesVideoMode: ERROR querying video mode supported status from VMMDev."
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| 130 | "rc = %Vrc, VMMDev rc = %Vrc\n", rc, req->header.rc));
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| 131 | }
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| 132 | VbglGRFree(&req->header);
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| 133 | }
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| 134 |
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| 135 | dprintf(("VBoxVideoMode::vboxLikesVideoMode: returning %d\n", bRC));
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| 136 | return bRC;
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| 137 | }
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| 138 |
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| 139 | ULONG vboxGetHeightReduction()
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| 140 | {
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| 141 | ULONG retHeight = 0;
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| 142 |
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| 143 | dprintf(("VBoxVideo::vboxGetHeightReduction\n"));
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| 144 |
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| 145 | VMMDevGetHeightReductionRequest *req = NULL;
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| 146 |
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| 147 | int rc = VbglGRAlloc((VMMDevRequestHeader**)&req, sizeof(VMMDevGetHeightReductionRequest), VMMDevReq_GetHeightReduction);
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| 148 | if (VBOX_FAILURE(rc))
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| 149 | {
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| 150 | dprintf(("VBoxVideo::vboxGetHeightReduction: ERROR allocating request, rc = %Vrc\n", rc));
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| 151 | }
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| 152 | else
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| 153 | {
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| 154 | rc = VbglGRPerform(&req->header);
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| 155 | if (VBOX_SUCCESS(rc) && VBOX_SUCCESS(req->header.rc))
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| 156 | {
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| 157 | retHeight = (ULONG)req->heightReduction;
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| 158 | }
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| 159 | else
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| 160 | {
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| 161 | dprintf(("VBoxVideo::vboxGetHeightReduction: ERROR querying height reduction value from VMMDev."
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| 162 | "rc = %Vrc, VMMDev rc = %Vrc\n", rc, req->header.rc));
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| 163 | }
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| 164 | VbglGRFree(&req->header);
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| 165 | }
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| 166 |
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| 167 | dprintf(("VBoxVideoMode::vboxGetHeightReduction: returning %d\n", retHeight));
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| 168 | return retHeight;
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| 169 | }
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| 170 |
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| 171 | static BOOLEAN vboxQueryPointerPosInternal (uint16_t *pointerXPos, uint16_t *pointerYPos)
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| 172 | {
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| 173 | BOOLEAN bRC = FALSE;
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| 174 |
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| 175 | dprintf(("VBoxVideo::vboxQueryPointerPosInternal: pointerXPos = %p, pointerYPos = %p\n", pointerXPos, pointerYPos));
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| 176 |
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| 177 | VMMDevReqMouseStatus *req = NULL;
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| 178 |
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| 179 | int rc = VbglGRAlloc ((VMMDevRequestHeader **)&req, sizeof (VMMDevReqMouseStatus), VMMDevReq_GetMouseStatus);
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| 180 |
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| 181 | if (VBOX_FAILURE(rc))
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| 182 | {
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| 183 | dprintf(("VBoxVideo::vboxQueryPointerPosInternal: ERROR allocating request, rc = %Vrc\n", rc));
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| 184 | }
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| 185 | else
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| 186 | {
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| 187 | rc = VbglGRPerform (&req->header);
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| 188 |
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| 189 | if (VBOX_SUCCESS(rc) && VBOX_SUCCESS(req->header.rc))
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| 190 | {
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| 191 | if (req->mouseFeatures & VBOXGUEST_MOUSE_HOST_CAN_ABSOLUTE)
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| 192 | {
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| 193 | if (pointerXPos)
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| 194 | {
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| 195 | *pointerXPos = req->pointerXPos;
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| 196 | }
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| 197 |
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| 198 | if (pointerYPos)
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| 199 | {
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| 200 | *pointerYPos = req->pointerYPos;
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| 201 | }
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| 202 |
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| 203 | bRC = TRUE;
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| 204 | }
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| 205 | }
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| 206 | else
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| 207 | {
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| 208 | dprintf(("VBoxVideo::vboxQueryPointerPosInternal: ERROR querying mouse capabilities from VMMDev."
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| 209 | "rc = %Vrc, VMMDev rc = %Vrc\n", rc, req->header.rc));
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| 210 | }
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| 211 |
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| 212 | VbglGRFree (&req->header);
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| 213 | }
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| 214 |
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| 215 | return bRC;
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| 216 | }
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| 217 |
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| 218 | /**
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| 219 | * Return the current absolute mouse position in normalized format
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| 220 | * (between 0 and 0xFFFF).
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| 221 | *
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| 222 | * @returns BOOLEAN success indicator
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| 223 | * @param pointerXPos address of result variable for x pos
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| 224 | * @param pointerYPos address of result variable for y pos
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| 225 | */
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| 226 | BOOLEAN vboxQueryPointerPos(uint16_t *pointerXPos, uint16_t *pointerYPos)
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| 227 | {
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| 228 | if (!pointerXPos || !pointerYPos)
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| 229 | {
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| 230 | return FALSE;
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| 231 | }
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| 232 |
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| 233 | return vboxQueryPointerPosInternal (pointerXPos, pointerYPos);
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| 234 | }
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| 235 |
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| 236 | /**
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| 237 | * Returns whether the host wants us to take absolute coordinates.
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| 238 | *
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| 239 | * @returns BOOLEAN TRUE if the host wants to send absolute coordinates.
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| 240 | */
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| 241 | BOOLEAN vboxQueryHostWantsAbsolute (void)
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| 242 | {
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| 243 | return vboxQueryPointerPosInternal (NULL, NULL);
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| 244 | }
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| 245 |
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| 246 | winVersion_t vboxQueryWinVersion()
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| 247 | {
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| 248 | static winVersion_t winVersion = UNKNOWN_WINVERSION;
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| 249 | ULONG majorVersion;
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| 250 | ULONG minorVersion;
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| 251 | ULONG buildNumber;
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| 252 |
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| 253 | if (winVersion != UNKNOWN_WINVERSION)
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| 254 | return winVersion;
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| 255 |
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| 256 | PsGetVersion(&majorVersion, &minorVersion, &buildNumber, NULL);
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| 257 |
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| 258 | dprintf(("VBoxVideo::vboxQueryWinVersion: running on Windows NT version %d.%d, build %d\n",
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| 259 | majorVersion, minorVersion, buildNumber));
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| 260 |
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| 261 | if (majorVersion >= 5)
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| 262 | {
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| 263 | if (minorVersion >= 1)
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| 264 | {
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| 265 | winVersion = WINXP;
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| 266 | } else
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| 267 | {
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| 268 | winVersion = WIN2K;
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| 269 | }
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| 270 | } else
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| 271 | if (majorVersion == 4)
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| 272 | {
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| 273 | winVersion = WINNT4;
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| 274 | } else
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| 275 | {
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| 276 | dprintf(("VBoxVideo::vboxQueryWinVersion: NT4 required!\n"));
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| 277 | }
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| 278 | return winVersion;
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| 279 | }
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| 280 |
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| 281 | /**
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| 282 | * Sends the pointer shape to the VMMDev
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| 283 | *
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| 284 | * @returns success indicator
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| 285 | * @param pointerAttr pointer description
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| 286 | */
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| 287 | BOOLEAN vboxUpdatePointerShape(PVIDEO_POINTER_ATTRIBUTES pointerAttr, uint32_t cbLength)
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| 288 | {
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| 289 | uint32_t cbData = 0;
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| 290 |
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| 291 | if (pointerAttr->Enable & VBOX_MOUSE_POINTER_SHAPE)
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| 292 | {
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| 293 | cbData = ((((pointerAttr->Width + 7) / 8) * pointerAttr->Height + 3) & ~3)
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| 294 | + pointerAttr->Width * 4 * pointerAttr->Height;
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| 295 | }
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| 296 |
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| 297 | if (cbData > cbLength - sizeof(VIDEO_POINTER_ATTRIBUTES))
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| 298 | {
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| 299 | dprintf(("vboxUpdatePointerShape: calculated pointer data size is too big (%d bytes, limit %d)\n",
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| 300 | cbData, cbLength - sizeof(VIDEO_POINTER_ATTRIBUTES)));
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| 301 | return FALSE;
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| 302 | }
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| 303 |
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| 304 | BOOLEAN bRC = FALSE;
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| 305 |
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| 306 | VMMDevReqMousePointer *req = NULL;
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| 307 |
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| 308 | int rc = VbglGRAlloc ((VMMDevRequestHeader **)&req, sizeof (VMMDevReqMousePointer) + cbData, VMMDevReq_SetPointerShape);
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| 309 |
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| 310 | if (VBOX_FAILURE(rc))
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| 311 | {
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| 312 | dprintf(("VBoxVideo::vboxUpdatePointerShape: ERROR allocating request, rc = %Vrc\n", rc));
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| 313 | }
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| 314 | else
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| 315 | {
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| 316 | dprintf(("VBoxVideo::vboxUpdatePointerShape: req->u32Version = %08X\n", req->header.version));
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| 317 |
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| 318 | /* We have our custom flags in the field */
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| 319 | req->fFlags = pointerAttr->Enable & 0xFFFF;
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| 320 |
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| 321 | /* Even if pointer is invisible, we have to pass following data,
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| 322 | * so host could create the pointer with initial status - invisible
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| 323 | */
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| 324 | req->xHot = (pointerAttr->Enable >> 16) & 0xFF;
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| 325 | req->yHot = (pointerAttr->Enable >> 24) & 0xFF;
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| 326 | req->width = pointerAttr->Width;
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| 327 | req->height = pointerAttr->Height;
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| 328 |
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| 329 | if (req->fFlags & VBOX_MOUSE_POINTER_SHAPE)
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| 330 | {
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| 331 | /* copy the actual pointer data */
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| 332 | memcpy (req->pointerData, pointerAttr->Pixels, cbData);
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| 333 | }
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| 334 |
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| 335 | rc = VbglGRPerform (&req->header);
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| 336 |
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| 337 | if (VBOX_SUCCESS(rc) && VBOX_SUCCESS(req->header.rc))
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| 338 | {
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| 339 | bRC = TRUE;
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| 340 | }
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| 341 | else
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| 342 | {
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| 343 | dprintf(("VBoxVideo::vboxUpdatePointerShape: ERROR querying mouse capabilities from VMMDev."
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| 344 | "rc = %Vrc, VMMDev rc = %Vrc\n", rc, req->header.rc));
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| 345 | }
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| 346 |
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| 347 | dprintf(("VBoxVideo::vboxUpdatePointerShape: req->u32Version = %08X\n", req->header.version));
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| 348 |
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| 349 | VbglGRFree (&req->header);
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| 350 | }
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| 351 |
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| 352 | return bRC;
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| 353 | }
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