| 1 | /* $Id: VBoxDispIf.h 55401 2015-04-23 10:03:17Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VBoxTray - Display Settings Interface abstraction for XPDM & WDDM
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2012 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 | #include <iprt/cdefs.h>
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| 18 |
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| 19 | #ifdef VBOX_WITH_WDDM
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| 20 | # define D3DKMDT_SPECIAL_MULTIPLATFORM_TOOL
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| 21 | # include <d3dkmthk.h>
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| 22 | # include "../Graphics/Video/disp/wddm/VBoxDispKmt.h"
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| 23 | #endif
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| 24 |
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| 25 | #include <VBoxDisplay.h>
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| 26 |
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| 27 | typedef enum
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| 28 | {
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| 29 | VBOXDISPIF_MODE_UNKNOWN = 0,
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| 30 | VBOXDISPIF_MODE_XPDM_NT4 = 1,
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| 31 | VBOXDISPIF_MODE_XPDM
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| 32 | #ifdef VBOX_WITH_WDDM
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| 33 | , VBOXDISPIF_MODE_WDDM
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| 34 | , VBOXDISPIF_MODE_WDDM_W7
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| 35 | #endif
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| 36 | } VBOXDISPIF_MODE;
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| 37 | /* display driver interface abstraction for XPDM & WDDM
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| 38 | * with WDDM we can not use ExtEscape to communicate with our driver
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| 39 | * because we do not have XPDM display driver any more, i.e. escape requests are handled by cdd
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| 40 | * that knows nothing about us
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| 41 | * NOTE: DispIf makes no checks whether the display driver is actually a VBox driver,
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| 42 | * it just switches between using different backend OS API based on the VBoxDispIfSwitchMode call
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| 43 | * It's caller's responsibility to initiate it to work in the correct mode */
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| 44 | typedef struct VBOXDISPIF
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| 45 | {
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| 46 | VBOXDISPIF_MODE enmMode;
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| 47 | /* with WDDM the approach is to call into WDDM miniport driver via PFND3DKMT API provided by the GDI,
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| 48 | * The PFND3DKMT is supposed to be used by the OpenGL ICD according to MSDN, so this approach is a bit hacky */
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| 49 | union
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| 50 | {
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| 51 | struct
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| 52 | {
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| 53 | LONG (WINAPI * pfnChangeDisplaySettingsEx)(LPCSTR lpszDeviceName, LPDEVMODE lpDevMode, HWND hwnd, DWORD dwflags, LPVOID lParam);
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| 54 | } xpdm;
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| 55 | #ifdef VBOX_WITH_WDDM
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| 56 | struct
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| 57 | {
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| 58 | /* ChangeDisplaySettingsEx does not exist in NT. ResizeDisplayDevice uses the function. */
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| 59 | LONG (WINAPI * pfnChangeDisplaySettingsEx)(LPCTSTR lpszDeviceName, LPDEVMODE lpDevMode, HWND hwnd, DWORD dwflags, LPVOID lParam);
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| 60 |
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| 61 | /* EnumDisplayDevices does not exist in NT. isVBoxDisplayDriverActive et al. are using these functions. */
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| 62 | BOOL (WINAPI * pfnEnumDisplayDevices)(IN LPCSTR lpDevice, IN DWORD iDevNum, OUT PDISPLAY_DEVICEA lpDisplayDevice, IN DWORD dwFlags);
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| 63 |
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| 64 | VBOXDISPKMT_CALLBACKS KmtCallbacks;
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| 65 | } wddm;
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| 66 | #endif
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| 67 | } modeData;
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| 68 | } VBOXDISPIF, *PVBOXDISPIF;
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| 69 | typedef const struct VBOXDISPIF *PCVBOXDISPIF;
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| 70 |
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| 71 | /* initializes the DispIf
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| 72 | * Initially the DispIf is configured to work in XPDM mode
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| 73 | * call VBoxDispIfSwitchMode to switch the mode to WDDM */
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| 74 | DWORD VBoxDispIfInit(PVBOXDISPIF pIf);
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| 75 | DWORD VBoxDispIfSwitchMode(PVBOXDISPIF pIf, VBOXDISPIF_MODE enmMode, VBOXDISPIF_MODE *penmOldMode);
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| 76 | DECLINLINE(VBOXDISPIF_MODE) VBoxDispGetMode(PVBOXDISPIF pIf) { return pIf->enmMode; }
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| 77 | DWORD VBoxDispIfTerm(PVBOXDISPIF pIf);
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| 78 | DWORD VBoxDispIfEscape(PCVBOXDISPIF const pIf, PVBOXDISPIFESCAPE pEscape, int cbData);
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| 79 | DWORD VBoxDispIfEscapeInOut(PCVBOXDISPIF const pIf, PVBOXDISPIFESCAPE pEscape, int cbData);
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| 80 | DWORD VBoxDispIfResizeModes(PCVBOXDISPIF const pIf, UINT iChangedMode, BOOL fEnable, BOOL fExtDispSup, DISPLAY_DEVICE *paDisplayDevices, DEVMODE *paDeviceModes, UINT cDevModes);
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| 81 | DWORD VBoxDispIfCancelPendingResize(PCVBOXDISPIF const pIf);
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| 82 |
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| 83 | DWORD VBoxDispIfResizeStarted(PCVBOXDISPIF const pIf);
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| 84 |
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| 85 |
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| 86 | typedef struct VBOXDISPIF_SEAMLESS
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| 87 | {
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| 88 | PCVBOXDISPIF pIf;
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| 89 |
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| 90 | union
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| 91 | {
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| 92 | #ifdef VBOX_WITH_WDDM
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| 93 | struct
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| 94 | {
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| 95 | VBOXDISPKMT_ADAPTER Adapter;
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| 96 | # ifdef VBOX_DISPIF_WITH_OPCONTEXT
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| 97 | VBOXDISPKMT_DEVICE Device;
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| 98 | VBOXDISPKMT_CONTEXT Context;
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| 99 | # endif
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| 100 | } wddm;
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| 101 | #endif
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| 102 | } modeData;
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| 103 | } VBOXDISPIF_SEAMLESS;
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| 104 |
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| 105 | DECLINLINE(bool) VBoxDispIfSeamlesIsValid(VBOXDISPIF_SEAMLESS *pSeamless)
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| 106 | {
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| 107 | return !!pSeamless->pIf;
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| 108 | }
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| 109 |
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| 110 | DWORD VBoxDispIfSeamlesCreate(PCVBOXDISPIF const pIf, VBOXDISPIF_SEAMLESS *pSeamless, HANDLE hEvent);
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| 111 | DWORD VBoxDispIfSeamlesTerm(VBOXDISPIF_SEAMLESS *pSeamless);
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| 112 | DWORD VBoxDispIfSeamlesSubmit(VBOXDISPIF_SEAMLESS *pSeamless, VBOXDISPIFESCAPE *pData, int cbData);
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