| 1 | /** @file
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| 2 | * VBoxTray - Display Settings Interface abstraction for XPDM & WDDM
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| 3 | */
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| 4 |
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| 5 | /*
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| 6 | * Copyright (C) 2006-2010 Oracle Corporation
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| 7 | *
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| 8 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 9 | * available from http://www.virtualbox.org. This file is free software;
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| 10 | * you can redistribute it and/or modify it under the terms of the GNU
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| 11 | * General Public License (GPL) as published by the Free Software
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| 12 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 13 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 14 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 15 | */
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| 16 | #include <iprt/cdefs.h>
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| 17 |
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| 18 | #include <windows.h>
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| 19 | #ifdef VBOX_WITH_WDDM
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| 20 | # include <d3dkmthk.h>
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| 21 | #endif
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| 22 |
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| 23 | #include <VBoxDisplay.h>
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| 24 |
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| 25 | typedef enum
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| 26 | {
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| 27 | VBOXDISPIF_MODE_UNKNOWN = 0,
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| 28 | VBOXDISPIF_MODE_XPDM_NT4 = 1,
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| 29 | VBOXDISPIF_MODE_XPDM
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| 30 | #ifdef VBOX_WITH_WDDM
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| 31 | , VBOXDISPIF_MODE_WDDM
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| 32 | #endif
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| 33 | } VBOXDISPIF_MODE;
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| 34 | /* display driver interface abstraction for XPDM & WDDM
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| 35 | * with WDDM we can not use ExtEscape to communicate with our driver
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| 36 | * because we do not have XPDM display driver any more, i.e. escape requests are handled by cdd
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| 37 | * that knows nothing about us
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| 38 | * NOTE: DispIf makes no checks whether the display driver is actually a VBox driver,
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| 39 | * it just switches between using different backend OS API based on the VBoxDispIfSwitchMode call
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| 40 | * It's caller's responsibility to initiate it to work in the correct mode */
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| 41 | typedef struct VBOXDISPIF
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| 42 | {
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| 43 | VBOXDISPIF_MODE enmMode;
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| 44 | /* with WDDM the approach is to call into WDDM miniport driver via PFND3DKMT API provided by the GDI,
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| 45 | * 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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| 46 | union
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| 47 | {
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| 48 | struct
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| 49 | {
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| 50 | LONG (WINAPI * pfnChangeDisplaySettingsEx)(LPCSTR lpszDeviceName, LPDEVMODE lpDevMode, HWND hwnd, DWORD dwflags, LPVOID lParam);
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| 51 | } xpdm;
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| 52 | #ifdef VBOX_WITH_WDDM
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| 53 | struct
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| 54 | {
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| 55 | /* open adapter */
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| 56 | PFND3DKMT_OPENADAPTERFROMHDC pfnD3DKMTOpenAdapterFromHdc;
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| 57 | PFND3DKMT_OPENADAPTERFROMGDIDISPLAYNAME pfnD3DKMTOpenAdapterFromGdiDisplayName;
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| 58 | /* close adapter */
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| 59 | PFND3DKMT_CLOSEADAPTER pfnD3DKMTCloseAdapter;
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| 60 | /* escape */
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| 61 | PFND3DKMT_ESCAPE pfnD3DKMTEscape;
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| 62 | /* auto resize support */
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| 63 | PFND3DKMT_INVALIDATEACTIVEVIDPN pfnD3DKMTInvalidateActiveVidPn;
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| 64 | } wddm;
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| 65 | #endif
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| 66 | } modeData;
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| 67 | } VBOXDISPIF, *PVBOXDISPIF;
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| 68 | typedef const struct VBOXDISPIF *PCVBOXDISPIF;
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| 69 |
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| 70 | /* initializes the DispIf
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| 71 | * Initially the DispIf is configured to work in XPDM mode
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| 72 | * call VBoxDispIfSwitchMode to switch the mode to WDDM */
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| 73 | DWORD VBoxDispIfInit(PVBOXDISPIF pIf);
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| 74 | DWORD VBoxDispIfSwitchMode(PVBOXDISPIF pIf, VBOXDISPIF_MODE enmMode, VBOXDISPIF_MODE *penmOldMode);
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| 75 | DECLINLINE(VBOXDISPIF_MODE) VBoxDispGetMode(PVBOXDISPIF pIf) { return pIf->enmMode; }
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| 76 | DWORD VBoxDispIfTerm(PVBOXDISPIF pIf);
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| 77 | DWORD VBoxDispIfEscape(PCVBOXDISPIF const pIf, PVBOXDISPIFESCAPE pEscape, int cbData);
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| 78 | DWORD VBoxDispIfResize(PCVBOXDISPIF const pIf, ULONG Id, DWORD Width, DWORD Height, DWORD BitsPerPixel);
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