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