| 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 Sun Microsystems, Inc.
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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 (GPL) as published by the Free Software
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| 11 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 12 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 13 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 14 | *
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| 15 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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| 16 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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| 17 | * additional information or have any questions.
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| 18 | */
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| 19 |
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| 20 | // enable backdoor logging
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| 21 | //#define LOG_ENABLED
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| 22 |
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| 23 | extern "C"
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| 24 | {
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| 25 | #include <ntddk.h>
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| 26 | }
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| 27 |
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| 28 | #include <VBox/err.h>
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| 29 |
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| 30 | #include <VBox/VBoxGuestLib.h>
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| 31 |
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| 32 | /* the video miniport headers not compatible with the NT DDK headers */
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| 33 | typedef struct _VIDEO_POINTER_ATTRIBUTES
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| 34 | {
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| 35 | ULONG Flags;
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| 36 | ULONG Width;
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| 37 | ULONG Height;
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| 38 | ULONG WidthInBytes;
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| 39 | ULONG Enable;
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| 40 | SHORT Column;
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| 41 | SHORT Row;
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| 42 | UCHAR Pixels[1];
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| 43 | } VIDEO_POINTER_ATTRIBUTES, *PVIDEO_POINTER_ATTRIBUTES;
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| 44 | #define VIDEO_MODE_COLOR_POINTER 0x04 // 1 if a color hardware pointer is
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| 45 | // supported.
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| 46 |
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| 47 | #include "Helper.h"
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| 48 |
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| 49 | /**
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| 50 | * Globals
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| 51 | */
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| 52 | /* note: should not do that but we can't use these datatypes in the global header */
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| 53 |
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| 54 | #pragma alloc_text(PAGE, vboxQueryDisplayRequest)
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| 55 | #pragma alloc_text(PAGE, vboxLikesVideoMode)
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| 56 | #pragma alloc_text(PAGE, vboxGetHeightReduction)
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| 57 | #pragma alloc_text(PAGE, vboxQueryPointerPos)
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| 58 | #pragma alloc_text(PAGE, vboxQueryHostWantsAbsolute)
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| 59 | #pragma alloc_text(PAGE, vboxQueryWinVersion)
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| 60 |
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| 61 | BOOLEAN vboxQueryDisplayRequest(uint32_t *xres, uint32_t *yres, uint32_t *bpp)
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| 62 | {
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| 63 | BOOLEAN bRC = FALSE;
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| 64 |
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| 65 | dprintf(("VBoxVideo::vboxQueryDisplayRequest: xres = %p, yres = %p bpp = %p\n", xres, yres, bpp));
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| 66 |
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| 67 | VMMDevDisplayChangeRequest *req = NULL;
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| 68 |
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| 69 | int rc = VbglGRAlloc ((VMMDevRequestHeader **)&req, sizeof (VMMDevDisplayChangeRequest), VMMDevReq_GetDisplayChangeRequest);
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| 70 |
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| 71 | if (VBOX_FAILURE(rc))
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| 72 | {
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| 73 | dprintf(("VBoxVideo::vboxQueryDisplayRequest: ERROR allocating request, rc = %Vrc\n", rc));
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| 74 | }
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| 75 | else
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| 76 | {
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| 77 | req->eventAck = 0;
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| 78 |
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| 79 | rc = VbglGRPerform (&req->header);
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| 80 |
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| 81 | if (VBOX_SUCCESS(rc) && VBOX_SUCCESS(req->header.rc))
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| 82 | {
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| 83 | if (xres)
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| 84 | *xres = req->xres;
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| 85 | if (yres)
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| 86 | *yres = req->yres;
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| 87 | if (bpp)
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| 88 | *bpp = req->bpp;
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| 89 | dprintf(("VBoxVideo::vboxQueryDisplayRequest: returning %d x %d @ %d\n",
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| 90 | req->xres, req->yres, req->bpp));
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| 91 | bRC = TRUE;
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| 92 | }
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| 93 | else
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| 94 | {
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| 95 | dprintf(("VBoxVideo::vboxQueryDisplayRequest: ERROR querying display request from VMMDev."
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| 96 | "rc = %Vrc, VMMDev rc = %Vrc\n", rc, req->header.rc));
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| 97 | }
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| 98 |
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| 99 | VbglGRFree (&req->header);
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| 100 | }
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| 101 |
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| 102 | return bRC;
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| 103 | }
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| 104 |
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| 105 | BOOLEAN vboxLikesVideoMode(uint32_t width, uint32_t height, uint32_t bpp)
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| 106 | {
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| 107 | BOOLEAN bRC = FALSE;
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| 108 |
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| 109 | dprintf(("VBoxVideo::vboxLikesVideoMode: width: %d, height: %d, bpp: %d\n", width, height, bpp));
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| 110 |
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| 111 | VMMDevVideoModeSupportedRequest *req = NULL;
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| 112 |
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| 113 | int rc = VbglGRAlloc((VMMDevRequestHeader**)&req, sizeof(VMMDevVideoModeSupportedRequest), VMMDevReq_VideoModeSupported);
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| 114 | if (VBOX_FAILURE(rc))
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| 115 | {
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| 116 | dprintf(("VBoxVideo::vboxLikesVideoMode: ERROR allocating request, rc = %Vrc\n", rc));
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| 117 | /* Most likely the VBoxGuest driver is not loaded.
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| 118 | * To get at least the video working, report the mode as supported.
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| 119 | */
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| 120 | bRC = TRUE;
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| 121 | }
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| 122 | else
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| 123 | {
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| 124 | req->width = width;
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| 125 | req->height = height;
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| 126 | req->bpp = bpp;
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| 127 | rc = VbglGRPerform(&req->header);
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| 128 | if (VBOX_SUCCESS(rc) && VBOX_SUCCESS(req->header.rc))
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| 129 | {
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| 130 | bRC = req->fSupported;
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| 131 | }
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| 132 | else
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| 133 | {
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| 134 | dprintf(("VBoxVideo::vboxLikesVideoMode: ERROR querying video mode supported status from VMMDev."
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| 135 | "rc = %Vrc, VMMDev rc = %Vrc\n", rc, req->header.rc));
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| 136 | }
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| 137 | VbglGRFree(&req->header);
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| 138 | }
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| 139 |
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| 140 | dprintf(("VBoxVideoMode::vboxLikesVideoMode: returning %d\n", bRC));
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| 141 | return bRC;
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| 142 | }
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| 143 |
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| 144 | ULONG vboxGetHeightReduction()
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| 145 | {
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| 146 | ULONG retHeight = 0;
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| 147 |
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| 148 | dprintf(("VBoxVideo::vboxGetHeightReduction\n"));
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| 149 |
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| 150 | VMMDevGetHeightReductionRequest *req = NULL;
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| 151 |
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| 152 | int rc = VbglGRAlloc((VMMDevRequestHeader**)&req, sizeof(VMMDevGetHeightReductionRequest), VMMDevReq_GetHeightReduction);
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| 153 | if (VBOX_FAILURE(rc))
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| 154 | {
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| 155 | dprintf(("VBoxVideo::vboxGetHeightReduction: ERROR allocating request, rc = %Vrc\n", rc));
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| 156 | }
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| 157 | else
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| 158 | {
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| 159 | rc = VbglGRPerform(&req->header);
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| 160 | if (VBOX_SUCCESS(rc) && VBOX_SUCCESS(req->header.rc))
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| 161 | {
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| 162 | retHeight = (ULONG)req->heightReduction;
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| 163 | }
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| 164 | else
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| 165 | {
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| 166 | dprintf(("VBoxVideo::vboxGetHeightReduction: ERROR querying height reduction value from VMMDev."
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| 167 | "rc = %Vrc, VMMDev rc = %Vrc\n", rc, req->header.rc));
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| 168 | }
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| 169 | VbglGRFree(&req->header);
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| 170 | }
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| 171 |
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| 172 | dprintf(("VBoxVideoMode::vboxGetHeightReduction: returning %d\n", retHeight));
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| 173 | return retHeight;
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| 174 | }
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| 175 |
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| 176 | static BOOLEAN vboxQueryPointerPosInternal (uint16_t *pointerXPos, uint16_t *pointerYPos)
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| 177 | {
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| 178 | BOOLEAN bRC = FALSE;
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| 179 |
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| 180 | /* Activate next line only when really needed; floods the log very quickly! */
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| 181 | /*dprintf(("VBoxVideo::vboxQueryPointerPosInternal: pointerXPos = %p, pointerYPos = %p\n", pointerXPos, pointerYPos));*/
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| 182 |
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| 183 | VMMDevReqMouseStatus *req = NULL;
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| 184 |
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| 185 | int rc = VbglGRAlloc ((VMMDevRequestHeader **)&req, sizeof (VMMDevReqMouseStatus), VMMDevReq_GetMouseStatus);
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| 186 |
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| 187 | if (VBOX_FAILURE(rc))
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| 188 | {
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| 189 | dprintf(("VBoxVideo::vboxQueryPointerPosInternal: ERROR allocating request, rc = %Vrc\n", rc));
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| 190 | }
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| 191 | else
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| 192 | {
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| 193 | rc = VbglGRPerform (&req->header);
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| 194 |
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| 195 | if (VBOX_SUCCESS(rc) && VBOX_SUCCESS(req->header.rc))
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| 196 | {
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| 197 | if (req->mouseFeatures & VBOXGUEST_MOUSE_HOST_CAN_ABSOLUTE)
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| 198 | {
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| 199 | if (pointerXPos)
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| 200 | {
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| 201 | *pointerXPos = req->pointerXPos;
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| 202 | }
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| 203 |
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| 204 | if (pointerYPos)
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| 205 | {
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| 206 | *pointerYPos = req->pointerYPos;
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| 207 | }
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| 208 |
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| 209 | bRC = TRUE;
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| 210 | }
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| 211 | }
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| 212 | else
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| 213 | {
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| 214 | dprintf(("VBoxVideo::vboxQueryPointerPosInternal: ERROR querying mouse capabilities from VMMDev."
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| 215 | "rc = %Vrc, VMMDev rc = %Vrc\n", rc, req->header.rc));
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| 216 | }
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| 217 |
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| 218 | VbglGRFree (&req->header);
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| 219 | }
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| 220 |
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| 221 | return bRC;
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| 222 | }
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| 223 |
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| 224 | /**
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| 225 | * Return the current absolute mouse position in normalized format
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| 226 | * (between 0 and 0xFFFF).
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| 227 | *
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| 228 | * @returns BOOLEAN success indicator
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| 229 | * @param pointerXPos address of result variable for x pos
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| 230 | * @param pointerYPos address of result variable for y pos
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| 231 | */
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| 232 | BOOLEAN vboxQueryPointerPos(uint16_t *pointerXPos, uint16_t *pointerYPos)
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| 233 | {
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| 234 | if (!pointerXPos || !pointerYPos)
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| 235 | {
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| 236 | return FALSE;
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| 237 | }
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| 238 |
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| 239 | return vboxQueryPointerPosInternal (pointerXPos, pointerYPos);
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| 240 | }
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| 241 |
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| 242 | /**
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| 243 | * Returns whether the host wants us to take absolute coordinates.
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| 244 | *
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| 245 | * @returns BOOLEAN TRUE if the host wants to send absolute coordinates.
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| 246 | */
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| 247 | BOOLEAN vboxQueryHostWantsAbsolute (void)
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| 248 | {
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| 249 | return vboxQueryPointerPosInternal (NULL, NULL);
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| 250 | }
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| 251 |
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| 252 | winVersion_t vboxQueryWinVersion()
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| 253 | {
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| 254 | static winVersion_t winVersion = UNKNOWN_WINVERSION;
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| 255 | ULONG majorVersion;
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| 256 | ULONG minorVersion;
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| 257 | ULONG buildNumber;
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| 258 |
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| 259 | if (winVersion != UNKNOWN_WINVERSION)
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| 260 | return winVersion;
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| 261 |
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| 262 | PsGetVersion(&majorVersion, &minorVersion, &buildNumber, NULL);
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| 263 |
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| 264 | dprintf(("VBoxVideo::vboxQueryWinVersion: running on Windows NT version %d.%d, build %d\n",
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| 265 | majorVersion, minorVersion, buildNumber));
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| 266 |
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| 267 | if (majorVersion >= 5)
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| 268 | {
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| 269 | if (minorVersion >= 1)
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| 270 | {
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| 271 | winVersion = WINXP;
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| 272 | } else
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| 273 | {
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| 274 | winVersion = WIN2K;
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| 275 | }
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| 276 | } else
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| 277 | if (majorVersion == 4)
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| 278 | {
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| 279 | winVersion = WINNT4;
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| 280 | } else
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| 281 | {
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| 282 | dprintf(("VBoxVideo::vboxQueryWinVersion: NT4 required!\n"));
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| 283 | }
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| 284 | return winVersion;
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| 285 | }
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| 286 |
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| 287 | /**
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| 288 | * Sends the pointer shape to the VMMDev
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| 289 | *
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| 290 | * @returns success indicator
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| 291 | * @param pointerAttr pointer description
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| 292 | */
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| 293 | BOOLEAN vboxUpdatePointerShape(PVIDEO_POINTER_ATTRIBUTES pointerAttr, uint32_t cbLength)
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| 294 | {
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| 295 | uint32_t cbData = 0;
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| 296 |
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| 297 | if (pointerAttr->Enable & VBOX_MOUSE_POINTER_SHAPE)
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| 298 | {
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| 299 | cbData = ((((pointerAttr->Width + 7) / 8) * pointerAttr->Height + 3) & ~3)
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| 300 | + pointerAttr->Width * 4 * pointerAttr->Height;
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| 301 | }
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| 302 |
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| 303 | if (cbData > cbLength - sizeof(VIDEO_POINTER_ATTRIBUTES))
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| 304 | {
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| 305 | dprintf(("vboxUpdatePointerShape: calculated pointer data size is too big (%d bytes, limit %d)\n",
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| 306 | cbData, cbLength - sizeof(VIDEO_POINTER_ATTRIBUTES)));
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| 307 | return FALSE;
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| 308 | }
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| 309 |
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| 310 | BOOLEAN bRC = FALSE;
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| 311 |
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| 312 | VMMDevReqMousePointer *req = NULL;
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| 313 |
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| 314 | int rc = VbglGRAlloc ((VMMDevRequestHeader **)&req, sizeof (VMMDevReqMousePointer) + cbData, VMMDevReq_SetPointerShape);
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| 315 |
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| 316 | if (VBOX_FAILURE(rc))
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| 317 | {
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| 318 | dprintf(("VBoxVideo::vboxUpdatePointerShape: ERROR allocating request, rc = %Vrc\n", rc));
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| 319 | }
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| 320 | else
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| 321 | {
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| 322 | /* Activate next line only when really needed; floods the log very quickly! */
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| 323 | /*dprintf(("VBoxVideo::vboxUpdatePointerShape: req->u32Version = %08X\n", req->header.version));*/
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| 324 |
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| 325 | /* We have our custom flags in the field */
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| 326 | req->fFlags = pointerAttr->Enable & 0xFFFF;
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| 327 |
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| 328 | /* Even if pointer is invisible, we have to pass following data,
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| 329 | * so host could create the pointer with initial status - invisible
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| 330 | */
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| 331 | req->xHot = (pointerAttr->Enable >> 16) & 0xFF;
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| 332 | req->yHot = (pointerAttr->Enable >> 24) & 0xFF;
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| 333 | req->width = pointerAttr->Width;
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| 334 | req->height = pointerAttr->Height;
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| 335 |
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| 336 | if (req->fFlags & VBOX_MOUSE_POINTER_SHAPE)
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| 337 | {
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| 338 | /* copy the actual pointer data */
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| 339 | memcpy (req->pointerData, pointerAttr->Pixels, cbData);
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| 340 | }
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| 341 |
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| 342 | rc = VbglGRPerform (&req->header);
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| 343 |
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| 344 | if (VBOX_SUCCESS(rc) && VBOX_SUCCESS(req->header.rc))
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| 345 | {
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| 346 | bRC = TRUE;
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| 347 | }
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| 348 | else
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| 349 | {
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| 350 | dprintf(("VBoxVideo::vboxUpdatePointerShape: ERROR querying mouse capabilities from VMMDev."
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| 351 | "rc = %Vrc, VMMDev rc = %Vrc\n", rc, req->header.rc));
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| 352 | }
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| 353 |
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| 354 | dprintf(("VBoxVideo::vboxUpdatePointerShape: req->u32Version = %08X\n", req->header.version));
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| 355 |
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| 356 | VbglGRFree (&req->header);
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| 357 | }
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| 358 |
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| 359 | return bRC;
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| 360 | }
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