enable.c revision 25be0b1daccd180b98ac7bd0a81e2acb75db6146
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync/******************************Module*Header*******************************\
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync*
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * Copyright (C) 2006-2007 Oracle Corporation
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync *
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * available from http://www.virtualbox.org. This file is free software;
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * you can redistribute it and/or modify it under the terms of the GNU
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * General Public License (GPL) as published by the Free Software
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync*/
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync/*
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync* Based in part on Microsoft DDK sample code
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync*
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync* *******************
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync* * GDI SAMPLE CODE *
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync* *******************
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync*
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync* Module Name: enable.c
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync*
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync* This module contains the functions that enable and disable the
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync* driver, the pdev, and the surface.
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync*
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync* Copyright (c) 1992-1998 Microsoft Corporation
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync\**************************************************************************/
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync#include "driver.h"
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync#include "dd.h"
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync#include <VBoxDisplay.h>
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync// The driver function table with all function index/address pairs
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync// Hook functions to track dirty rectangles and generate RDP orders.
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync// NT4 functions
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsyncDRVFN gadrvfn_nt4[] = {
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync { INDEX_DrvEnablePDEV, (PFN) DrvEnablePDEV }, // 0
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync { INDEX_DrvCompletePDEV, (PFN) DrvCompletePDEV }, // 1
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync { INDEX_DrvDisablePDEV, (PFN) DrvDisablePDEV }, // 2
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync { INDEX_DrvEnableSurface, (PFN) DrvEnableSurface }, // 3
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync { INDEX_DrvDisableSurface, (PFN) DrvDisableSurface }, // 4
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync { INDEX_DrvAssertMode, (PFN) DrvAssertMode }, // 5
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync { INDEX_DrvOffset, (PFN) DrvOffset }, // 6
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync { INDEX_DrvDisableDriver, (PFN) DrvDisableDriver }, // 8
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync// { INDEX_DrvCreateDeviceBitmap, (PFN) DrvCreateDeviceBitmap }, // 10
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync// { INDEX_DrvDeleteDeviceBitmap, (PFN) DrvDeleteDeviceBitmap }, // 11
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync { INDEX_DrvRealizeBrush, (PFN) DrvRealizeBrush }, // 12
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync { INDEX_DrvDitherColor, (PFN) DrvDitherColor }, // 13
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync { INDEX_DrvStrokePath, (PFN) DrvStrokePath }, // 14
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync { INDEX_DrvFillPath, (PFN) DrvFillPath }, // 15
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync { INDEX_DrvPaint, (PFN) DrvPaint }, // 17
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync { INDEX_DrvBitBlt, (PFN) DrvBitBlt }, // 18
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync { INDEX_DrvCopyBits, (PFN) DrvCopyBits }, // 19
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync { INDEX_DrvStretchBlt, (PFN) DrvStretchBlt, }, // 20
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync { INDEX_DrvSetPalette, (PFN) DrvSetPalette }, // 22
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync { INDEX_DrvTextOut, (PFN) DrvTextOut }, // 23
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync { INDEX_DrvEscape, (PFN) DrvEscape }, // 24
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync { INDEX_DrvSetPointerShape, (PFN) DrvSetPointerShape }, // 29
{ INDEX_DrvMovePointer, (PFN) DrvMovePointer }, // 30
{ INDEX_DrvLineTo, (PFN) DrvLineTo }, // 31
{ INDEX_DrvSynchronize, (PFN) DrvSynchronize }, // 38
{ INDEX_DrvSaveScreenBits, (PFN) DrvSaveScreenBits }, // 40
{ INDEX_DrvGetModes, (PFN) DrvGetModes }, // 41
#ifdef VBOX_WITH_DDRAW
{ INDEX_DrvGetDirectDrawInfo, (PFN) DrvGetDirectDrawInfo }, // 59 0x3b
{ INDEX_DrvEnableDirectDraw, (PFN) DrvEnableDirectDraw }, // 60 0x3c
{ INDEX_DrvDisableDirectDraw, (PFN) DrvDisableDirectDraw }, // 61 0x3d
#endif
};
/* Experimental begin */
BOOL APIENTRY DrvResetPDEV(DHPDEV dhpdevOld, DHPDEV dhpdevNew)
{
DISPDBG((0, "Experimental %s: %p, %p\n", __FUNCTION__, dhpdevOld, dhpdevNew));
return TRUE;
}
BOOL DrvNineGrid (PVOID x1, PVOID x2, PVOID x3, PVOID x4, PVOID x5, PVOID x6, PVOID x7, PVOID x8, PVOID x9)
{
DISPDBG((0, "Experimental %s: %p, %p, %p, %p, %p, %p, %p, %p, %p\n", __FUNCTION__, x1, x2, x3, x4, x5, x6, x7, x8, x9));
return FALSE;
}
VOID APIENTRY DrvDestroyFont(FONTOBJ *pfo)
{
DISPDBG((0, "Experimental %s: %p\n", __FUNCTION__, pfo));
}
ULONG APIENTRY DrvEscape(SURFOBJ *pso, ULONG iEsc, ULONG cjIn, PVOID pvIn, ULONG cjOut, PVOID pvOut)
{
PDEV* ppdev = (PDEV*) pso->dhpdev;
DISPDBG((0, "%s: %p, %p, %p, %p, %p, %p\n", __FUNCTION__, pso, iEsc, cjIn, pvIn, cjOut, pvOut));
switch(iEsc)
{
#ifdef VBOX_WITH_OPENGL
case OPENGL_GETINFO:
{
if ( cjOut >= sizeof(OPENGL_INFO)
&& pvOut)
{
POPENGL_INFO pInfo = (POPENGL_INFO)pvOut;
pInfo->dwVersion = 2;
pInfo->dwDriverVersion = 1;
pInfo->szDriverName[0] = 'V';
pInfo->szDriverName[1] = 'B';
pInfo->szDriverName[2] = 'o';
pInfo->szDriverName[3] = 'x';
pInfo->szDriverName[4] = 'O';
pInfo->szDriverName[5] = 'G';
pInfo->szDriverName[6] = 'L';
pInfo->szDriverName[7] = 0;
DISPDBG((0, "OPENGL_GETINFO\n"));
return cjOut;
}
else
DISPDBG((0, "OPENGL_GETINFO invalid size %d\n", cjOut)); /* It doesn't matter that we fail here. Opengl32 will fall back to software rendering when this escape is not supported. */
break;
}
#endif
case VBOXESC_ISVRDPACTIVE:
{
ULONG ret = 0;
if (ppdev && ppdev->vbvaCtx.pVBVA)
{
if (ppdev->vbvaCtx.pVBVA->hostFlags.u32HostEvents & VBVA_F_MODE_VRDP)
{
ret = 1;
}
DISPDBG((0, "VBOXESC_ISVRDPACTIVE -> %d (%x)\n", ret, ppdev->vbvaCtx.pVBVA->hostFlags.u32HostEvents));
}
else
DISPDBG((0, "VBOXESC_ISVRDPACTIVE -> 0\n"));
return ret;
}
case VBOXESC_SETVISIBLEREGION:
{
LPRGNDATA lpRgnData = (LPRGNDATA)pvIn;
DISPDBG((0, "VBOXESC_SETVISIBLEREGION\n"));
if ( cjIn >= sizeof(RGNDATAHEADER)
&& pvIn
&& lpRgnData->rdh.dwSize == sizeof(RGNDATAHEADER)
&& lpRgnData->rdh.iType == RDH_RECTANGLES
&& cjIn == lpRgnData->rdh.nCount * sizeof(RECT) + sizeof(RGNDATAHEADER))
{
DWORD ulReturn, i;
PRTRECT pRTRect;
RECT *pRect = (RECT *)&lpRgnData->Buffer;
pRTRect = (PRTRECT) EngAllocMem(0, lpRgnData->rdh.nCount*sizeof(RTRECT), ALLOC_TAG);
for (i=0;i<lpRgnData->rdh.nCount;i++)
{
DISPDBG((0, "New visible rectangle (%d,%d) (%d,%d)\n", pRect[i].left, pRect[i].bottom, pRect[i].right, pRect[i].top));
pRTRect[i].xLeft = pRect[i].left;
pRTRect[i].yBottom = pRect[i].bottom;
pRTRect[i].xRight = pRect[i].right;
pRTRect[i].yTop = pRect[i].top;
}
if (EngDeviceIoControl(ppdev->hDriver,
IOCTL_VIDEO_VBOX_SETVISIBLEREGION,
pRTRect,
lpRgnData->rdh.nCount*sizeof(RTRECT),
NULL,
0,
&ulReturn))
{
DISPDBG((0, "DISP DrvAssertMode failed IOCTL_VIDEO_VBOX_SETVISIBLEREGION\n"));
return 0;
}
else
{
DISPDBG((0, "DISP IOCTL_VIDEO_VBOX_SETVISIBLEREGION successful\n"));
return 1;
}
}
else
{
if (pvIn)
DISPDBG((0, "check failed rdh.dwSize=%x iType=%d size=%d expected size=%d\n", lpRgnData->rdh.dwSize, lpRgnData->rdh.iType, cjIn, lpRgnData->rdh.nCount * sizeof(RECT) + sizeof(RGNDATAHEADER)));
}
break;
}
case QUERYESCSUPPORT:
if ( cjIn == sizeof(DWORD)
&& pvIn)
{
DWORD nEscapeQuery = *(DWORD *)pvIn;
switch(nEscapeQuery)
{
#ifdef VBOX_WITH_OPENGL
case OPENGL_GETINFO:
return 1;
#endif
default:
DISPDBG((0, "QUERYESCSUPPORT %d unsupported\n", nEscapeQuery));
break;
}
}
else
DISPDBG((0, "QUERYESCSUPPORT invalid size %d\n", cjOut));
break;
default:
DISPDBG((0, "Unsupported Escape %d\n", iEsc));
break;
}
return 0;
}
BOOL DrvConnect (PVOID x1, PVOID x2, PVOID x3, PVOID x4)
{
DISPDBG((0, "Experimental %s: %p, %p, %p, %p\n", __FUNCTION__, x1, x2, x3, x4));
return TRUE;
}
BOOL DrvDisconnect (PVOID x1, PVOID x2)
{
DISPDBG((0, "Experimental %s: %p, %p\n", __FUNCTION__, x1, x2));
return FALSE;
}
BOOL DrvReconnect (PVOID x1, PVOID x2)
{
DISPDBG((0, "Experimental %s: %p, %p\n", __FUNCTION__, x1, x2));
return FALSE;
}
BOOL DrvShadowConnect (PVOID x1, PVOID x2)
{
DISPDBG((0, "Experimental %s: %p, %p\n", __FUNCTION__, x1, x2));
return FALSE;
}
BOOL DrvShadowDisconnect (PVOID x1, PVOID x2)
{
DISPDBG((0, "Experimental %s: %p, %p\n", __FUNCTION__, x1, x2));
return FALSE;
}
/* Experimental end */
// W2K,XP functions
DRVFN gadrvfn_nt5[] = {
{ INDEX_DrvEnablePDEV, (PFN) DrvEnablePDEV }, // 0 0x0
{ INDEX_DrvCompletePDEV, (PFN) DrvCompletePDEV }, // 1 0x1
{ INDEX_DrvDisablePDEV, (PFN) DrvDisablePDEV }, // 2 0x2
{ INDEX_DrvEnableSurface, (PFN) DrvEnableSurface }, // 3 0x3
{ INDEX_DrvDisableSurface, (PFN) DrvDisableSurface }, // 4 0x4
{ INDEX_DrvAssertMode, (PFN) DrvAssertMode }, // 5 0x5
{ INDEX_DrvDisableDriver, (PFN) DrvDisableDriver }, // 8 0x8
// { INDEX_DrvCreateDeviceBitmap, (PFN) DrvCreateDeviceBitmap }, // 10
// { INDEX_DrvDeleteDeviceBitmap, (PFN) DrvDeleteDeviceBitmap }, // 11
{ INDEX_DrvRealizeBrush, (PFN) DrvRealizeBrush }, // 12 0xc
{ INDEX_DrvDitherColor, (PFN) DrvDitherColor }, // 13 0xd
{ INDEX_DrvStrokePath, (PFN) DrvStrokePath }, // 14 0xe
{ INDEX_DrvFillPath, (PFN) DrvFillPath }, // 15 0xf
// { INDEX_DrvStrokeAndFillPath, (PFN) DrvStrokeAndFillPath }, // 16 0x10
{ INDEX_DrvPaint, (PFN) DrvPaint }, // 17 0x11
{ INDEX_DrvBitBlt, (PFN) DrvBitBlt }, // 18 0x12
{ INDEX_DrvCopyBits, (PFN) DrvCopyBits }, // 19 0x13
{ INDEX_DrvStretchBlt, (PFN) DrvStretchBlt, }, // 20 0x14
{ INDEX_DrvSetPalette, (PFN) DrvSetPalette }, // 22 0x16
{ INDEX_DrvTextOut, (PFN) DrvTextOut }, // 23 0x17
{ INDEX_DrvEscape, (PFN) DrvEscape }, // 24 0x18
{ INDEX_DrvSetPointerShape, (PFN) DrvSetPointerShape }, // 29 0x1d
{ INDEX_DrvMovePointer, (PFN) DrvMovePointer }, // 30 0x1e
{ INDEX_DrvLineTo, (PFN) DrvLineTo }, // 31 0x1f
{ INDEX_DrvSynchronize, (PFN) DrvSynchronize }, // 38 0x26
{ INDEX_DrvSaveScreenBits, (PFN) DrvSaveScreenBits }, // 40 0x28
{ INDEX_DrvGetModes, (PFN) DrvGetModes }, // 41 0x29
#ifdef VBOX_WITH_DDRAW
{ INDEX_DrvGetDirectDrawInfo, (PFN) DrvGetDirectDrawInfo }, // 59 0x3b
{ INDEX_DrvEnableDirectDraw, (PFN) DrvEnableDirectDraw }, // 60 0x3c
{ INDEX_DrvDisableDirectDraw, (PFN) DrvDisableDirectDraw }, // 61 0x3d
{ INDEX_DrvDeriveSurface, (PFN) DrvDeriveSurface }, // 85 0x55
#endif
{ INDEX_DrvNotify, (PFN) DrvNotify }, // 87 0x57
// /* Experimental. */
// { 0x7, (PFN) DrvResetPDEV }, // 0x7
// { 0x5b, (PFN) DrvNineGrid }, // 0x5b
// { 0x2b, (PFN) DrvDestroyFont }, // 0x2b
// { 0x18, (PFN) DrvEscape }, // 0x18
// { 0x4d, (PFN) DrvConnect }, // 0x4d
// { 0x4e, (PFN) DrvDisconnect }, // 0x4e
// { 0x4f, (PFN) DrvReconnect }, // 0x4f
// { 0x50, (PFN) DrvShadowConnect }, // 0x50
// { 0x51, (PFN) DrvShadowDisconnect }, // 0x51
};
// Required hook bits will be set up according to DDI version
static ULONG gflHooks = 0;
BOOL g_bOnNT40 = TRUE; /* assume NT4 guest by default */
#define HOOKS_BMF8BPP gflHooks
#define HOOKS_BMF16BPP gflHooks
#define HOOKS_BMF24BPP gflHooks
#define HOOKS_BMF32BPP gflHooks
/******************************Public*Routine******************************\
* DrvEnableDriver
*
* Enables the driver by retrieving the drivers function table and version.
*
\**************************************************************************/
BOOL DrvEnableDriver(ULONG iEngineVersion, ULONG cj, PDRVENABLEDATA pded)
{
// Engine Version is passed down so future drivers can support previous
// engine versions. A next generation driver can support both the old
// and new engine conventions if told what version of engine it is
// working with. For the first version the driver does nothing with it.
DISPDBG((0, "VBoxDisp::DrvEnableDriver called. iEngine version = %08X\n", iEngineVersion));
// Set up hook flags to intercept all functions which can generate VRDP orders
gflHooks = HOOK_BITBLT | HOOK_TEXTOUT | HOOK_FILLPATH |
HOOK_COPYBITS | HOOK_STROKEPATH | HOOK_LINETO | /* HOOK_STROKEANDFILLPATH | */
#ifdef VBOX_NEW_SURFACE_CODE
HOOK_PAINT | HOOK_STRETCHBLT | HOOK_SYNCHRONIZE;
#else
HOOK_PAINT | HOOK_STRETCHBLT | HOOK_SYNCHRONIZEACCESS;
#endif
// Set up g_bOnNT40 based on the value in iEngineVersion
if(iEngineVersion >= DDI_DRIVER_VERSION_NT5)
g_bOnNT40 = FALSE;
// Fill in as much as we can.
if (cj >= sizeof(DRVENABLEDATA))
pded->pdrvfn = (iEngineVersion >= DDI_DRIVER_VERSION_NT5)?
gadrvfn_nt5:
gadrvfn_nt4;
if (cj >= (sizeof(ULONG) * 2))
pded->c = (iEngineVersion >= DDI_DRIVER_VERSION_NT5)?
sizeof(gadrvfn_nt5) / sizeof(DRVFN):
sizeof(gadrvfn_nt4) / sizeof(DRVFN);
// DDI version this driver was targeted for is passed back to engine.
// Future graphic's engine may break calls down to old driver format.
if (cj >= sizeof(ULONG))
pded->iDriverVersion = (iEngineVersion >= DDI_DRIVER_VERSION_NT5)?
DDI_DRIVER_VERSION_NT5:
DDI_DRIVER_VERSION_NT4;
return(TRUE);
}
/******************************Public*Routine******************************\
* DrvDisableDriver
*
* Tells the driver it is being disabled. Release any resources allocated in
* DrvEnableDriver.
*
\**************************************************************************/
VOID DrvDisableDriver(VOID)
{
DISPDBG((0, "VBoxDisp::DrvDisableDriver called.\n"));
return;
}
/******************************Public*Routine******************************\
* DrvEnablePDEV
*
* DDI function, Enables the Physical Device.
*
* Return Value: device handle to pdev.
*
\**************************************************************************/
DHPDEV DrvEnablePDEV(
DEVMODEW *pDevmode, // Pointer to DEVMODE
PWSTR pwszLogAddress, // Logical address
ULONG cPatterns, // number of patterns
HSURF *ahsurfPatterns, // return standard patterns
ULONG cjGdiInfo, // Length of memory pointed to by pGdiInfo
ULONG *pGdiInfo, // Pointer to GdiInfo structure
ULONG cjDevInfo, // Length of following PDEVINFO structure
DEVINFO *pDevInfo, // physical device information structure
HDEV hdev, // HDEV, used for callbacks
PWSTR pwszDeviceName, // DeviceName - not used
HANDLE hDriver) // Handle to base driver
{
GDIINFO GdiInfo;
DEVINFO DevInfo;
PPDEV ppdev = (PPDEV) NULL;
DISPDBG((0, "VBoxDisp::DrvEnablePDEV called\n"));
UNREFERENCED_PARAMETER(pwszLogAddress);
UNREFERENCED_PARAMETER(pwszDeviceName);
RtlZeroMemory(&DevInfo, sizeof (DEVINFO));
RtlZeroMemory(&GdiInfo, sizeof (GDIINFO));
// Allocate a physical device structure.
ppdev = (PPDEV) EngAllocMem(0, sizeof(PDEV), ALLOC_TAG);
if (ppdev == (PPDEV) NULL)
{
DISPDBG((0, "DISP DrvEnablePDEV failed EngAllocMem\n"));
return((DHPDEV) 0);
}
memset(ppdev, 0, sizeof(PDEV));
// Save the screen handle in the PDEV.
ppdev->hDriver = hDriver;
// Get the current screen mode information. Set up device caps and devinfo.
if (!bInitPDEV(ppdev, pDevmode, &GdiInfo, &DevInfo))
{
DISPDBG((0,"DISP DrvEnablePDEV failed\n"));
goto error_free;
}
// Initialize the cursor information.
if (!bInitPointer(ppdev, &DevInfo))
{
// Not a fatal error...
DISPDBG((0, "DrvEnablePDEV failed bInitPointer\n"));
}
// Initialize palette information.
if (!bInitPaletteInfo(ppdev, &DevInfo))
{
DISPDBG((0, "DrvEnablePDEV failed bInitPalette\n"));
goto error_free;
}
// // Start a thread that will process notifications from VMMDev
// if (!bInitNotificationThread(ppdev))
// {
// DISPDBG((0, "DrvEnablePDEV failed bInitNotificationThread\n"));
// goto error_free;
// }
// Copy the devinfo into the engine buffer.
DISPDBG((0, "VBoxDisp::DrvEnablePDEV: sizeof(DEVINFO) = %d, cjDevInfo = %d, alpha = %d\n", sizeof(DEVINFO), cjDevInfo, DevInfo.flGraphicsCaps2 & GCAPS2_ALPHACURSOR));
// @todo seems to be not necessary. these bits are initialized in screen.c DevInfo.flGraphicsCaps |= GCAPS_OPAQUERECT |
// GCAPS_DITHERONREALIZE |
// GCAPS_PALMANAGED |
// GCAPS_ALTERNATEFILL |
// GCAPS_WINDINGFILL |
// GCAPS_MONO_DITHER |
// GCAPS_COLOR_DITHER |
// GCAPS_ASYNCMOVE;
//
// DevInfo.flGraphicsCaps |= GCAPS_DITHERONREALIZE;
DevInfo.flGraphicsCaps2 |= GCAPS2_RESERVED1; /* @todo figure out what is this. */
memcpy(pDevInfo, &DevInfo, min(sizeof(DEVINFO), cjDevInfo));
// Set the pdevCaps with GdiInfo we have prepared to the list of caps for this
// pdev.
memcpy(pGdiInfo, &GdiInfo, min(cjGdiInfo, sizeof(GDIINFO)));
DISPDBG((0, "VBoxDisp::DrvEnablePDEV completed %x\n", ppdev));
return((DHPDEV) ppdev);
// Error case for failure.
error_free:
EngFreeMem(ppdev);
return((DHPDEV) 0);
}
/******************************Public*Routine******************************\
* DrvCompletePDEV
*
* Store the HPDEV, the engines handle for this PDEV, in the DHPDEV.
*
\**************************************************************************/
VOID DrvCompletePDEV(DHPDEV dhpdev, HDEV hdev)
{
DISPDBG((0, "VBoxDisp::DrvCompletePDEV called %x\n", dhpdev));
((PPDEV) dhpdev)->hdevEng = hdev;
}
/******************************Public*Routine******************************\
* DrvDisablePDEV
*
* Release the resources allocated in DrvEnablePDEV. If a surface has been
* enabled DrvDisableSurface will have already been called.
*
\**************************************************************************/
VOID DrvDisablePDEV(DHPDEV dhpdev)
{
DISPDBG((0, "VBoxDisp::DrvDisablePDEV called %x\n", dhpdev));
// vStopNotificationThread ((PPDEV) dhpdev);
vDisablePalette((PPDEV) dhpdev);
EngFreeMem(dhpdev);
}
/******************************Public*Routine******************************\
* VOID DrvOffset
*
* DescriptionText
*
\**************************************************************************/
BOOL DrvOffset(SURFOBJ *pso, LONG x, LONG y, FLONG flReserved)
{
PDEV* ppdev = (PDEV*) pso->dhpdev;
DISPDBG((0, "VBoxDisp::DrvOffset %x %x %x\n", x, y, flReserved));
// Add back last offset that we subtracted. I could combine the next
// two statements, but I thought this was more clear. It's not
// performance critical anyway.
ppdev->pjScreen += ((ppdev->ptlOrg.y * ppdev->lDeltaScreen) +
(ppdev->ptlOrg.x * ((ppdev->ulBitCount+1) >> 3)));
// Subtract out new offset
ppdev->pjScreen -= ((y * ppdev->lDeltaScreen) +
(x * ((ppdev->ulBitCount+1) >> 3)));
ppdev->ptlOrg.x = x;
ppdev->ptlOrg.y = y;
return(TRUE);
}
/******************************Public*Routine******************************\
* DrvEnableSurface
*
* Enable the surface for the device. Hook the calls this driver supports.
*
* Return: Handle to the surface if successful, 0 for failure.
*
\**************************************************************************/
HSURF DrvEnableSurface(DHPDEV dhpdev)
{
PPDEV ppdev;
HSURF hsurf;
SIZEL sizl;
ULONG ulBitmapType;
FLONG flHooks;
#ifdef VBOX_NEW_SURFACE_CODE
PVBOXSURF psurf;
#endif
DISPDBG((0, "DISP DrvEnableSurface called\n"));
// Create engine bitmap around frame buffer.
ppdev = (PPDEV) dhpdev;
ppdev->ptlOrg.x = 0;
ppdev->ptlOrg.y = 0;
if (!bInitSURF(ppdev, TRUE))
{
DISPDBG((0, "DISP DrvEnableSurface failed bInitSURF\n"));
return(FALSE);
}
DISPDBG((0, "DISP DrvEnableSurface bInitSURF success\n"));
sizl.cx = ppdev->cxScreen;
sizl.cy = ppdev->cyScreen;
if (ppdev->ulBitCount == 8)
{
if (!bInit256ColorPalette(ppdev)) {
DISPDBG((0, "DISP DrvEnableSurface failed to init the 8bpp palette\n"));
return(FALSE);
}
ulBitmapType = BMF_8BPP;
flHooks = HOOKS_BMF8BPP;
}
else if (ppdev->ulBitCount == 16)
{
ulBitmapType = BMF_16BPP;
flHooks = HOOKS_BMF16BPP;
}
else if (ppdev->ulBitCount == 24)
{
ulBitmapType = BMF_24BPP;
flHooks = HOOKS_BMF24BPP;
}
else
{
ulBitmapType = BMF_32BPP;
flHooks = HOOKS_BMF32BPP;
}
#ifdef VBOX_NEW_SURFACE_CODE
psurf = (PVBOXSURF)EngAllocMem(0, sizeof(VBOXSURF), ALLOC_TAG);
if (psurf == NULL)
{
DISPDBG((0, "DrvEnableSurface: failed pdsurf memory allocation\n"));
goto l_Failure;
}
ppdev->pdsurfScreen = psurf;
psurf->ppdev = ppdev;
//
// On NT4.0 we create a GDI managed bitmap as the primary surface. But
// on NT5.0 we create a device managed primary.
//
// On NT4.0 we still use our driver's acceleration capabilities by
// doing a trick with EngLockSurface on the GDI managed primary.
//
if(g_bOnNT40)
{
hsurf = (HSURF) EngCreateBitmap(sizl,
ppdev->lDeltaScreen,
ulBitmapType,
(ppdev->lDeltaScreen > 0) ? BMF_TOPDOWN : 0,
(PVOID)(ppdev->pjScreen));
}
else
{
hsurf = (HSURF)EngCreateDeviceSurface((DHSURF)psurf, sizl,
ulBitmapType);
}
if ( hsurf == 0 )
{
DISPDBG((0, "DrvEnableSurface: failed EngCreateDeviceBitmap\n"));
goto l_Failure;
}
//
// On NT5.0 we call EngModifSurface to expose our device surface to
// GDI. We cant do this on NT4.0 hence we call EngAssociateSurface.
//
if(g_bOnNT40)
{
//
// We have to associate the surface we just created with our physical
// device so that GDI can get information related to the PDEV when
// it's drawing to the surface (such as, for example, the length of
// styles on the device when simulating styled lines).
//
//
// On NT4.0 we dont want to be called to Synchronize Access
//
LONG myflHooks = flHooks;
myflHooks &= ~HOOK_SYNCHRONIZE;
if (!EngAssociateSurface(hsurf, ppdev->hdevEng, myflHooks))
{
DISPDBG((0, "DrvEnableSurface: failed EngAssociateSurface\n"));
goto l_Failure;
}
//
// Jam in the value of dhsurf into screen SURFOBJ. We do this to
// make sure the driver accelerates Drv calls we hook and not
// punt them back to GDI as the SURFOBJ's dhsurf = 0.
//
ppdev->psoScreenBitmap = EngLockSurface(hsurf);
if(ppdev->psoScreenBitmap == 0)
{
DISPDBG((0, "DrvEnableSurface: failed EngLockSurface\n"));
goto l_Failure;
}
ppdev->psoScreenBitmap->dhsurf = (DHSURF)hsurf;
}
else
{
//
// Tell GDI about the screen surface. This will enable GDI to render
// directly to the screen.
//
if ( !EngModifySurface(hsurf,
ppdev->hdevEng,
flHooks,
MS_NOTSYSTEMMEMORY,
(DHSURF)psurf,
ppdev->pjScreen,
ppdev->lDeltaScreen,
NULL))
{
DISPDBG((0, "DrvEnableSurface: failed EngModifySurface"));
goto l_Failure;
}
}
ppdev->hsurfScreen = hsurf;
ppdev->flHooks = flHooks;
ppdev->ulBitmapType = ulBitmapType;
#else
/* Create a GDI bitmap which will be used to draw with Eng* functions. */
ppdev->hsurfScreenBitmap = (HSURF)EngCreateBitmap(sizl,
ppdev->lDeltaScreen,
ulBitmapType,
(ppdev->lDeltaScreen > 0) ? BMF_TOPDOWN : 0,
(PVOID) (ppdev->pjScreen));
if (ppdev->hsurfScreenBitmap == (HSURF) 0)
{
DISPDBG((0, "DISP DrvEnableSurface failed EngCreateBitmap ppdev->hsurfScreenBitmap\n"));
goto l_Failure;
}
else
{
/* Get the GDI bitmap SURFOBJ, which will be passed to Eng*. */
ppdev->psoScreenBitmap = EngLockSurface(ppdev->hsurfScreenBitmap);
/* Create device managed surface, which will represent screen for GDI. */
ppdev->hsurfScreen = (HSURF)EngCreateDeviceSurface((DHSURF)ppdev, /* Handle assigned by the device. */
sizl,
ulBitmapType);
if (ppdev->hsurfScreen == (HSURF) 0)
{
DISPDBG((0, "DISP DrvEnableSurface failed EngCreateDeviceSurface ppdev->hsurfScreen\n"));
goto l_Failure;
}
else
{
/* Tell GDI that the driver will handle drawing operations on the screen surface. */
if (!EngAssociateSurface(ppdev->hsurfScreen, ppdev->hdevEng, flHooks))
{
DISPDBG((0, "DISP DrvEnableSurface failed EngAssociateSurface for Screen.\n"));
goto l_Failure;
}
else
{
ppdev->flHooks = flHooks;
ppdev->ulBitmapType = ulBitmapType;
DISPDBG((0, "DISP DrvEnableSurface success ppdev %p, ppdev->hsurfScreen %p\n", ppdev, ppdev->hsurfScreen));
}
}
}
#endif /* VBOX_NEW_SURFACE_CODE */
return ppdev->hsurfScreen;
l_Failure:
DrvDisableSurface(dhpdev);
return((HSURF)0);
}
/******************************Public*Routine******************************\
* DrvDisableSurface
*
* Free resources allocated by DrvEnableSurface. Release the surface.
*
\**************************************************************************/
VOID DrvDisableSurface(DHPDEV dhpdev)
{
PPDEV ppdev = (PPDEV)dhpdev;
DISPDBG((0, "VBoxDisp::DrvDisableSurface called\n"));
if (ppdev->psoScreenBitmap)
{
EngUnlockSurface (ppdev->psoScreenBitmap);
ppdev->psoScreenBitmap = NULL;
}
if (ppdev->hsurfScreen)
{
EngDeleteSurface(ppdev->hsurfScreen);
ppdev->hsurfScreen = (HSURF)0;
}
#ifdef VBOX_NEW_SURFACE_CODE
if (ppdev->pdsurfScreen)
{
EngFreeMem(ppdev->pdsurfScreen);
ppdev->pdsurfScreen = NULL;
}
#else
if (ppdev->hsurfScreenBitmap)
{
EngDeleteSurface(ppdev->hsurfScreenBitmap);
ppdev->hsurfScreenBitmap = (HSURF)0;
}
#endif
vDisableSURF(ppdev);
}
/******************************Public*Routine******************************\
* DrvAssertMode
*
* This asks the device to reset itself to the mode of the pdev passed in.
*
\**************************************************************************/
BOOL DrvAssertMode(DHPDEV dhpdev, BOOL bEnable)
{
PPDEV ppdev = (PPDEV) dhpdev;
ULONG ulReturn;
PBYTE pjScreen;
DISPDBG((0, "DISP DrvAssertMode called bEnable = %d\n", bEnable));
if (bEnable)
{
pjScreen = ppdev->pjScreen;
if (!bInitSURF(ppdev, FALSE))
{
DISPDBG((0, "DISP DrvAssertMode failed bInitSURF\n"));
return (FALSE);
}
#ifdef VBOX_NEW_SURFACE_CODE
todo
#endif
if (pjScreen != ppdev->pjScreen)
{
HSURF hsurf;
SIZEL sizl;
SURFOBJ *pso;
DISPDBG((0, "DISP DrvAssertMode Screen pointer has changed!!!\n"));
sizl.cx = ppdev->cxScreen;
sizl.cy = ppdev->cyScreen;
hsurf = (HSURF) EngCreateBitmap(sizl,
ppdev->lDeltaScreen,
ppdev->ulBitmapType,
(ppdev->lDeltaScreen > 0) ? BMF_TOPDOWN : 0,
(PVOID) (ppdev->pjScreen));
if (hsurf == (HSURF) 0)
{
DISPDBG((0, "DISP DrvAssertMode failed EngCreateBitmap\n"));
return FALSE;
}
pso = EngLockSurface(hsurf);
if (ppdev->psoScreenBitmap)
{
EngUnlockSurface (ppdev->psoScreenBitmap);
ppdev->psoScreenBitmap = NULL;
}
if (ppdev->hsurfScreenBitmap)
{
EngDeleteSurface(ppdev->hsurfScreenBitmap);
ppdev->hsurfScreenBitmap = (HSURF)0;
}
ppdev->hsurfScreenBitmap = hsurf;
ppdev->psoScreenBitmap = pso;
}
if (!EngAssociateSurface(ppdev->hsurfScreenBitmap, ppdev->hdevEng, 0))
{
DISPDBG((0, "DISP DrvAssertMode failed EngAssociateSurface for ScreenBitmap.\n"));
return FALSE;
}
if (!EngAssociateSurface(ppdev->hsurfScreen, ppdev->hdevEng, ppdev->flHooks))
{
DISPDBG((0, "DISP DrvAssertMode failed EngAssociateSurface for Screen.\n"));
return FALSE;
}
return TRUE;
}
else
{
#ifdef VBOX_WITH_VIDEOHWACCEL
/* tells we can not process host commands any more and ensures we've completed processing of the host VHWA commands */
vboxVHWADisable(ppdev);
#endif
/* Free the driver's VBVA resources. */
if (ppdev->bHGSMISupported)
{
PPDEV ppdev = (PPDEV) dhpdev;
VBoxVBVADisable(&ppdev->vbvaCtx, &ppdev->guestCtx, -1);
}
//
// We must give up the display.
// Call the kernel driver to reset the device to a known state.
//
if (EngDeviceIoControl(ppdev->hDriver,
IOCTL_VIDEO_RESET_DEVICE,
NULL,
0,
NULL,
0,
&ulReturn))
{
DISPDBG((0, "DISP DrvAssertMode failed IOCTL\n"));
return FALSE;
}
else
{
return TRUE;
}
}
}
#if 0
/******************************Public*Routine**********************************\
* HBITMAP DrvCreateDeviceBitmap
*
* Function called by GDI to create a device-format-bitmap (DFB). We will
* always try to allocate the bitmap in off-screen; if we can't, we simply
* fail the call and GDI will create and manage the bitmap itself.
*
* Note: We do not have to zero the bitmap bits. GDI will automatically
* call us via DrvBitBlt to zero the bits (which is a security
* consideration).
*
\******************************************************************************/
HBITMAP
DrvCreateDeviceBitmap(
DHPDEV dhpdev,
SIZEL sizl,
ULONG iFormat)
{
DISPDBG((0, "DISP DrvCreateDeviceBitmap %x (%d,%d) %x\n", dhpdev, sizl.cx, sizl.cy, iFormat));
/* Let GDI manage the bitmap */
return (HBITMAP)0;
}
/******************************Public*Routine**********************************\
* VOID DrvDeleteDeviceBitmap
*
* Deletes a DFB.
*
\******************************************************************************/
VOID
DrvDeleteDeviceBitmap(
DHSURF dhsurf)
{
DISPDBG((0, "DISP DrvDeleteDeviceBitmap %x", dhsurf));
}
#endif /* 0 */
/******************************Public*Routine******************************\
* DrvGetModes
*
* Returns the list of available modes for the device.
*
\**************************************************************************/
ULONG DrvGetModes(HANDLE hDriver, ULONG cjSize, DEVMODEW *pdm)
{
DWORD cModes;
DWORD cbOutputSize;
PVIDEO_MODE_INFORMATION pVideoModeInformation, pVideoTemp;
DWORD cOutputModes = cjSize / (sizeof(DEVMODEW) + DRIVER_EXTRA_SIZE);
DWORD cbModeSize;
DISPDBG((3, "DrvGetModes\n"));
cModes = getAvailableModes(hDriver,
(PVIDEO_MODE_INFORMATION *) &pVideoModeInformation,
&cbModeSize);
if (cModes == 0)
{
DISPDBG((0, "DrvGetModes failed to get mode information"));
return 0;
}
if (pdm == NULL)
{
cbOutputSize = cModes * (sizeof(DEVMODEW) + DRIVER_EXTRA_SIZE);
}
else
{
//
// Now copy the information for the supported modes back into the output
// buffer
//
cbOutputSize = 0;
pVideoTemp = pVideoModeInformation;
do
{
if (pVideoTemp->Length != 0)
{
if (cOutputModes == 0)
{
break;
}
//
// Zero the entire structure to start off with.
//
memset(pdm, 0, sizeof(DEVMODEW));
//
// Set the name of the device to the name of the DLL.
//
memcpy(pdm->dmDeviceName, DLL_NAME, sizeof(DLL_NAME));
pdm->dmSpecVersion = DM_SPECVERSION;
pdm->dmDriverVersion = DM_SPECVERSION;
pdm->dmSize = sizeof(DEVMODEW);
pdm->dmDriverExtra = DRIVER_EXTRA_SIZE;
pdm->dmBitsPerPel = pVideoTemp->NumberOfPlanes *
pVideoTemp->BitsPerPlane;
pdm->dmPelsWidth = pVideoTemp->VisScreenWidth;
pdm->dmPelsHeight = pVideoTemp->VisScreenHeight;
pdm->dmDisplayFrequency = pVideoTemp->Frequency;
pdm->dmDisplayFlags = 0;
pdm->dmFields = DM_BITSPERPEL |
DM_PELSWIDTH |
DM_PELSHEIGHT |
DM_DISPLAYFREQUENCY |
DM_DISPLAYFLAGS ;
//
// Go to the next DEVMODE entry in the buffer.
//
cOutputModes--;
pdm = (LPDEVMODEW) ( ((ULONG_PTR)pdm) + sizeof(DEVMODEW)
+ DRIVER_EXTRA_SIZE);
cbOutputSize += (sizeof(DEVMODEW) + DRIVER_EXTRA_SIZE);
}
pVideoTemp = (PVIDEO_MODE_INFORMATION)
(((PUCHAR)pVideoTemp) + cbModeSize);
} while (--cModes);
}
EngFreeMem(pVideoModeInformation);
return cbOutputSize;
}
VOID DrvSynchronize(IN DHPDEV dhpdev,IN RECTL *prcl)
{
DISPDBG((0, "VBoxDisp::DrvSynchronize\n"));
}
/******************************Public*Routine******************************\
* DrvNotify
*
* Called by GDI to notify us of certain "interesting" events
*
* DN_DEVICE_ORIGIN is used to communicate the X/Y offsets of individual monitors
* when DualView is in effect.
*
\**************************************************************************/
VOID DrvNotify(
SURFOBJ *pso,
ULONG iType,
PVOID pvData)
{
PDEV* ppdev = (PDEV*) pso->dhpdev;
DISPDBG((0, "VBoxDisp::DrvNotify called.\n"));
switch(iType)
{
case DN_DEVICE_ORIGIN:
{
POINTL ptlDevOrg = *(PPOINTL)pvData;
DISPDBG((3, "DN_DEVICE_ORIGIN: current @%d,%d, new @%d,%d, (PSO = %p)\n", ppdev->ptlDevOrg.x,
ppdev->ptlDevOrg.y, ptlDevOrg.x, ptlDevOrg.y, pso));
if (ppdev->ptlDevOrg.x != ptlDevOrg.x || ppdev->ptlDevOrg.y != ptlDevOrg.y)
{
ppdev->ptlDevOrg = ptlDevOrg;
VBoxProcessDisplayInfo(ppdev);
}
} break;
case DN_DRAWING_BEGIN:
DISPDBG((3, "DN_DRAWING_BEGIN (PSO = %p)\n", pso));
break;
}
}
#ifdef VBOX_WITH_DDRAW
//--------------------------Public Routine-------------------------------------
//
// HBITMAP DrvDeriveSurface
//
// This function derives and creates a GDI surface from the specified
// DirectDraw surface.
//
// Parameters
// pDirectDraw-----Points to a DD_DIRECTDRAW_GLOBAL structure that describes
// the DirectDraw object.
// pSurface--------Points to a DD_SURFACE_LOCAL structure that describes the
// DirectDraw surface around which to wrap a GDI surface.
//
// Return Value
// DrvDeriveSurface returns a handle to the created GDI surface upon success.
// It returns NULL if the call fails or if the driver cannot accelerate GDI
// drawing to the specified DirectDraw surface.
//
// Comments
// DrvDeriveSurface allows the driver to create a GDI surface around a
// DirectDraw video memory or AGP surface object in order to allow accelerated
// GDI drawing to the surface. If the driver does not hook this call, all GDI
// drawing to DirectDraw surfaces is done in software using the DIB engine.
//
// GDI calls DrvDeriveSurface with RGB surfaces only.
//
// The driver should call DrvCreateDeviceBitmap to create a GDI surface of the
// same size and format as that of the DirectDraw surface. Space for the
// actual pixels need not be allocated since it already exists.
//
//-----------------------------------------------------------------------------
HBITMAP DrvDeriveSurface(DD_DIRECTDRAW_GLOBAL* pDirectDraw, DD_SURFACE_LOCAL* pSurface)
{
PPDEV pDev = (PPDEV)pDirectDraw->dhpdev;
HBITMAP hbmDevice;
DD_SURFACE_GLOBAL* pSurfaceGlobal;
DISPDBG((0, "%s: %p\n", __FUNCTION__, pDev));
pSurfaceGlobal = pSurface->lpGbl;
//
// GDI should never call us for a non-RGB surface, but let's assert just
// to make sure they're doing their job properly.
//
AssertMsg(!(pSurfaceGlobal->ddpfSurface.dwFlags & DDPF_FOURCC), ("GDI called us with a non-RGB surface!"));
// The GDI driver does not accelerate surfaces in AGP memory,
// thus we fail the call
if (pSurface->ddsCaps.dwCaps & DDSCAPS_NONLOCALVIDMEM)
{
DISPDBG((0, "DrvDeriveSurface return NULL, surface in AGP memory\n"));
return 0;
}
// The GDI driver does not accelerate managed surface,
// thus we fail the call
if (pSurface->lpSurfMore->ddsCapsEx.dwCaps2 & DDSCAPS2_TEXTUREMANAGE)
{
DISPDBG((0, "DrvDeriveSurface return NULL, surface is managed\n"));
return 0;
}
//
// The rest of our driver expects GDI calls to come in with the same
// format as the primary surface. So we'd better not wrap a device
// bitmap around an RGB format that the rest of our driver doesn't
// understand. Also, we must check to see that it is not a surface
// whose pitch does not match the primary surface.
//
// NOTE: Most surfaces created by this driver are allocated as 2D surfaces
// whose lPitch's are equal to the screen pitch. However, overlay surfaces
// are allocated such that there lPitch's are usually different then the
// screen pitch. The hardware can not accelerate drawing operations to
// these surfaces and thus we fail to derive these surfaces.
//
if ( (pSurfaceGlobal->ddpfSurface.dwRGBBitCount == pDev->ulBitCount) )
{
SIZEL sizel;
DWORD ulBitmapType, flHooks;
sizel.cx = pSurfaceGlobal->wWidth;
sizel.cy = pSurfaceGlobal->wHeight;
if (pDev->ulBitCount == 8)
{
ulBitmapType = BMF_8BPP;
flHooks = HOOKS_BMF8BPP;
}
else if (pDev->ulBitCount == 16)
{
ulBitmapType = BMF_16BPP;
flHooks = HOOKS_BMF16BPP;
}
else if (pDev->ulBitCount == 24)
{
ulBitmapType = BMF_24BPP;
flHooks = HOOKS_BMF24BPP;
}
else
{
ulBitmapType = BMF_32BPP;
flHooks = HOOKS_BMF32BPP;
}
/* Create a bitmap that represents the DDRAW bits.
* Important is to calculate the address of the bitmap.
*/
hbmDevice = EngCreateBitmap(sizel,
pSurfaceGlobal->lPitch,
ulBitmapType,
(pDev->lDeltaScreen > 0) ? BMF_TOPDOWN : 0,
(PVOID) (pDev->pjScreen + pSurfaceGlobal->fpVidMem));
if (hbmDevice)
{
if (pSurfaceGlobal->fpVidMem == 0)
{
/* Screen surface, mark it so it will be recognized by the driver.
* and so the driver will be called on any operations on the surface
* (required for VBVA and VRDP).
*/
if (EngAssociateSurface((HSURF)hbmDevice, pDev->hdevEng, flHooks))
{
SURFOBJ *surfobj = EngLockSurface ((HSURF)hbmDevice);
DISPDBG((0, "DrvDeriveSurface surfobj %x, hsurf = %x\n", surfobj, surfobj->hsurf));
surfobj->dhpdev = (DHPDEV)pDev;
EngUnlockSurface(surfobj);
DISPDBG((0, "DrvDeriveSurface return succeed %x at %x\n", hbmDevice, pSurfaceGlobal->fpVidMem));
return(hbmDevice);
}
}
else
{
DISPDBG((0, "DrvDeriveSurface return succeed %x at %x\n", hbmDevice, pSurfaceGlobal->fpVidMem));
return(hbmDevice);
}
DISPDBG((0, "DrvDeriveSurface: EngAssociateSurface failed\n"));
EngDeleteSurface((HSURF)hbmDevice);
}
}
DISPDBG((0, "DrvDeriveSurface return NULL\n"));
DISPDBG((0, "pSurfaceGlobal->ddpfSurface.dwRGBBitCount = %d, lPitch =%ld\n", pSurfaceGlobal->ddpfSurface.dwRGBBitCount,pSurfaceGlobal->lPitch));
return(0);
}
#endif /* VBOX_WITH_DDRAW */