cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#include "driver.h"

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#ifdef VBOX_WITH_HGSMI

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#include <iprt/asm.h>

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#include <VBox/log.h>

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#include <VBox/HGSMI/HGSMI.h>

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#include <VBox/HGSMI/HGSMIChSetup.h>

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#endif

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#define SYSTM_LOGFONT {16,7,0,0,700,0,0,0,ANSI_CHARSET,OUT_DEFAULT_PRECIS,CLIP_DEFAULT_PRECIS,DEFAULT_QUALITY,VARIABLE_PITCH | FF_DONTCARE,L"System"}

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#define HELVE_LOGFONT {12,9,0,0,400,0,0,0,ANSI_CHARSET,OUT_DEFAULT_PRECIS,CLIP_STROKE_PRECIS,PROOF_QUALITY,VARIABLE_PITCH | FF_DONTCARE,L"MS Sans Serif"}

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#define COURI_LOGFONT {12,9,0,0,400,0,0,0,ANSI_CHARSET,OUT_DEFAULT_PRECIS,CLIP_STROKE_PRECIS,PROOF_QUALITY,FIXED_PITCH | FF_DONTCARE, L"Courier"}

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsyncconst DEVINFO gDevInfoFrameBuffer = {

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ( GCAPS_OPAQUERECT

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#ifdef VBOX_WITH_DDRAW

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync | GCAPS_DIRECTDRAW

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#endif

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync | GCAPS_MONO_DITHER

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ), /* Graphics capabilities */

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync SYSTM_LOGFONT, /* Default font description */

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync HELVE_LOGFONT, /* ANSI variable font description */

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync COURI_LOGFONT, /* ANSI fixed font description */

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync 0, /* Count of device fonts */

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync 0, /* Preferred DIB format */

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync 8, /* Width of color dither */

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync 8, /* Height of color dither */

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync 0 /* Default palette to use for this device */

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync};

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsyncstatic void vboxInitVBoxVideo (PPDEV ppdev, const VIDEO_MEMORY_INFORMATION *pMemoryInformation)

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync{

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ULONG cbAvailable = 0;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync DWORD returnedDataLength;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ULONG iDevice;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync uint32_t u32DisplayInfoSize;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync uint32_t u32MinVBVABufferSize;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#ifndef VBOX_WITH_HGSMI

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync QUERYDISPLAYINFORESULT DispInfo;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync RtlZeroMemory(&DispInfo, sizeof (DispInfo));

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->bVBoxVideoSupported = !EngDeviceIoControl(ppdev->hDriver,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync IOCTL_VIDEO_QUERY_DISPLAY_INFO,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync NULL,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync 0,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync &DispInfo,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync sizeof(DispInfo),

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync &returnedDataLength);

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync if (ppdev->bVBoxVideoSupported)

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync {

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync iDevice = DispInfo.iDevice;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync u32DisplayInfoSize = DispInfo.u32DisplayInfoSize;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync u32MinVBVABufferSize = 0; /* In old mode the buffer is not used at all. */

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync }

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#else

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync QUERYHGSMIRESULT info;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync RtlZeroMemory(&info, sizeof (info));

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->bHGSMISupported = !EngDeviceIoControl(ppdev->hDriver,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync IOCTL_VIDEO_QUERY_HGSMI_INFO,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync NULL,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync 0,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync &info,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync sizeof(info),

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync &returnedDataLength);

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync if (ppdev->bHGSMISupported)

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync {

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync HGSMIQUERYCALLBACKS Callbacks;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync DWORD err;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync RtlZeroMemory(&Callbacks, sizeof(Callbacks));

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync iDevice = info.iDevice;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync u32DisplayInfoSize = info.u32DisplayInfoSize;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync u32MinVBVABufferSize = info.u32MinVBVABufferSize;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync err = EngDeviceIoControl(ppdev->hDriver,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync IOCTL_VIDEO_HGSMI_QUERY_CALLBACKS,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync NULL,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync 0,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync &Callbacks,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync sizeof(Callbacks),

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync &returnedDataLength);

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync Assert(!err);

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync if(!err)

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync {

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync HGSMIQUERYCPORTPROCS PortProcs;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync RtlZeroMemory(&PortProcs, sizeof(PortProcs));

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->hMpHGSMI = Callbacks.hContext;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->pfnHGSMICommandComplete = Callbacks.pfnCompletionHandler;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->pfnHGSMIRequestCommands = Callbacks.pfnRequestCommandsHandler;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync err = EngDeviceIoControl(ppdev->hDriver,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync IOCTL_VIDEO_HGSMI_QUERY_PORTPROCS,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync NULL,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync 0,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync &PortProcs,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync sizeof(PortProcs),

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync &returnedDataLength);

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync Assert(!err);

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync if(!err)

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync {

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync HGSMIHANDLERENABLE HandlerReg;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync RtlZeroMemory(&HandlerReg, sizeof(HandlerReg));

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->pVideoPortContext = PortProcs.pContext;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->VideoPortProcs = PortProcs.VideoPortProcs;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync HandlerReg.u8Channel = HGSMI_CH_VBVA;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync err = EngDeviceIoControl(ppdev->hDriver,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync IOCTL_VIDEO_HGSMI_HANDLER_ENABLE,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync &HandlerReg,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync sizeof(HandlerReg),

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync NULL,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync 0,

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync &returnedDataLength);

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync Assert(!err);

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync }

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync }

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync if(err)

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync {

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->bHGSMISupported = FALSE;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync }

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync }

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#endif /* VBOX_WITH_HGSMI */

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#ifndef VBOX_WITH_HGSMI

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync if (ppdev->bVBoxVideoSupported)

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync {

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#else

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync if (ppdev->bHGSMISupported)

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync {

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#endif /* VBOX_WITH_HGSMI */

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->iDevice = iDevice;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->layout.cbVRAM = pMemoryInformation->VideoRamLength;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->layout.offFrameBuffer = 0;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->layout.cbFrameBuffer = RT_ALIGN_32(pMemoryInformation->FrameBufferLength, 0x1000);

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync cbAvailable = ppdev->layout.cbVRAM - ppdev->layout.cbFrameBuffer;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync if (cbAvailable <= u32DisplayInfoSize)

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync {

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#ifndef VBOX_WITH_HGSMI

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->bVBoxVideoSupported = FALSE;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#else

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->bHGSMISupported = FALSE;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#endif /* VBOX_WITH_HGSMI */

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync }

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync else

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync {

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->layout.offDisplayInformation = ppdev->layout.cbVRAM - u32DisplayInfoSize;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->layout.cbDisplayInformation = u32DisplayInfoSize;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync cbAvailable -= ppdev->layout.cbDisplayInformation;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync /* Use minimum 64K and maximum the cbFrameBuffer for the VBVA buffer. */

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync for (ppdev->layout.cbVBVABuffer = ppdev->layout.cbFrameBuffer;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#ifndef VBOX_WITH_HGSMI

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->layout.cbVBVABuffer >= 0x10000;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#else

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->layout.cbVBVABuffer >= u32MinVBVABufferSize;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#endif /* VBOX_WITH_HGSMI */

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->layout.cbVBVABuffer /= 2)

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync {

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync if (ppdev->layout.cbVBVABuffer < cbAvailable)

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync {

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync break;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync }

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync }

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync if (ppdev->layout.cbVBVABuffer >= cbAvailable)

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync {

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#ifndef VBOX_WITH_HGSMI

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->bVBoxVideoSupported = FALSE;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#else

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->bHGSMISupported = FALSE;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync#endif /* VBOX_WITH_HGSMI */

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync }

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync else

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync {

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync /* Now the offscreen heap followed by the VBVA buffer. */

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->layout.offDDRAWHeap = ppdev->layout.offFrameBuffer + ppdev->layout.cbFrameBuffer;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync cbAvailable -= ppdev->layout.cbVBVABuffer;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->layout.cbDDRAWHeap = cbAvailable;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync ppdev->layout.offVBVABuffer = ppdev->layout.offDDRAWHeap + ppdev->layout.cbDDRAWHeap;

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync }

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync }

cf22150eaeeb72431bf1cf65c309a431454fb22bvboxsync }

#ifndef VBOX_WITH_HGSMI

if (!ppdev->bVBoxVideoSupported)

#else

if (!ppdev->bHGSMISupported)

#endif /* VBOX_WITH_HGSMI */

{

ppdev->iDevice = 0;

/* Setup a layout without both the VBVA buffer and the display information. */

ppdev->layout.cbVRAM = pMemoryInformation->VideoRamLength;

ppdev->layout.offFrameBuffer = 0;

ppdev->layout.cbFrameBuffer = RT_ALIGN_32(pMemoryInformation->FrameBufferLength, 0x1000);

ppdev->layout.offDDRAWHeap = ppdev->layout.offFrameBuffer + ppdev->layout.cbFrameBuffer;

ppdev->layout.cbDDRAWHeap = ppdev->layout.cbVRAM - ppdev->layout.offDDRAWHeap;

ppdev->layout.offVBVABuffer = ppdev->layout.offDDRAWHeap + ppdev->layout.cbDDRAWHeap;

ppdev->layout.cbVBVABuffer = 0;

ppdev->layout.offDisplayInformation = ppdev->layout.offVBVABuffer + ppdev->layout.cbVBVABuffer;

ppdev->layout.cbDisplayInformation = 0;

}

#ifdef VBOX_WITH_HGSMI

else

{

/* Setup HGSMI heap in the display information area. The area has some space reserved for

int rc = HGSMIHeapSetup (&ppdev->hgsmiDisplayHeap,

(uint8_t *)ppdev->pjScreen + ppdev->layout.offDisplayInformation + sizeof (HGSMIHOSTFLAGS),

ppdev->layout.cbDisplayInformation - sizeof (HGSMIHOSTFLAGS),

info.areaDisplay.offBase + ppdev->layout.offDisplayInformation + sizeof (HGSMIHOSTFLAGS));

DISPDBG((0, "VBoxDISP::vboxInitVBoxVideo: offBase 0x%x\n",

info.areaDisplay.offBase));

if (RT_FAILURE (rc))

{

DISPDBG((0, "VBoxDISP::vboxInitVBoxVideo: HGSMIHeapSetup failed rc = %d\n",

rc));

ppdev->bHGSMISupported = FALSE;

}

else

{

ppdev->IOPortGuestCommand = info.IOPortGuestCommand;

}

}

#endif /* VBOX_WITH_HGSMI */

DISPDBG((0, "vboxInitVBoxVideo:\n"

" cbVRAM = 0x%X\n"

" offFrameBuffer = 0x%X\n"

" cbFrameBuffer = 0x%X\n"

" offDDRAWHeap = 0x%X\n"

" cbDDRAWHeap = 0x%X\n"

" offVBVABuffer = 0x%X\n"

" cbVBVABuffer = 0x%X\n"

" offDisplayInformation = 0x%X\n"

" cbDisplayInformation = 0x%X\n",

ppdev->layout.cbVRAM,

ppdev->layout.offFrameBuffer,

ppdev->layout.cbFrameBuffer,

ppdev->layout.offDDRAWHeap,

ppdev->layout.cbDDRAWHeap,

ppdev->layout.offVBVABuffer,

ppdev->layout.cbVBVABuffer,

ppdev->layout.offDisplayInformation,

ppdev->layout.cbDisplayInformation

));

}

#ifndef VBOX_WITH_HGSMI

static void vboxSetupDisplayInfo (PPDEV ppdev, VIDEO_MEMORY_INFORMATION *pMemoryInformation)

{

VBOXDISPLAYINFO *pInfo;

uint8_t *pu8;

pu8 = (uint8_t *)ppdev->pjScreen + ppdev->layout.offDisplayInformation;

pInfo = (VBOXDISPLAYINFO *)pu8;

pu8 += sizeof (VBOXDISPLAYINFO);

pInfo->hdrLink.u8Type = VBOX_VIDEO_INFO_TYPE_LINK;

pInfo->hdrLink.u8Reserved = 0;

pInfo->hdrLink.u16Length = sizeof (VBOXVIDEOINFOLINK);

pInfo->link.i32Offset = 0;

pInfo->hdrScreen.u8Type = VBOX_VIDEO_INFO_TYPE_SCREEN;

pInfo->hdrScreen.u8Reserved = 0;

pInfo->hdrScreen.u16Length = sizeof (VBOXVIDEOINFOSCREEN);

DISPDBG((1, "Setup: %d,%d\n", ppdev->ptlDevOrg.x, ppdev->ptlDevOrg.y));

pInfo->screen.xOrigin = ppdev->ptlDevOrg.x;

pInfo->screen.yOrigin = ppdev->ptlDevOrg.y;

pInfo->screen.u32LineSize = 0;

pInfo->screen.u16Width = 0;

pInfo->screen.u16Height = 0;

pInfo->screen.bitsPerPixel = 0;

pInfo->screen.u8Flags = VBOX_VIDEO_INFO_SCREEN_F_NONE;

pInfo->hdrHostEvents.u8Type = VBOX_VIDEO_INFO_TYPE_HOST_EVENTS;

pInfo->hdrHostEvents.u8Reserved = 0;

pInfo->hdrHostEvents.u16Length = sizeof (VBOXVIDEOINFOHOSTEVENTS);

pInfo->hostEvents.fu32Events = VBOX_VIDEO_INFO_HOST_EVENTS_F_NONE;

pInfo->hdrEnd.u8Type = VBOX_VIDEO_INFO_TYPE_END;

pInfo->hdrEnd.u8Reserved = 0;

pInfo->hdrEnd.u16Length = 0;

ppdev->pInfo = pInfo;

}

static void vboxUpdateDisplayInfo (PPDEV ppdev)

{

if (ppdev->pInfo)

{

ppdev->pInfo->screen.u32LineSize = ppdev->lDeltaScreen;

ppdev->pInfo->screen.u16Width = (uint16_t)ppdev->cxScreen;

ppdev->pInfo->screen.u16Height = (uint16_t)ppdev->cyScreen;

ppdev->pInfo->screen.bitsPerPixel = (uint8_t)ppdev->ulBitCount;

ppdev->pInfo->screen.u8Flags = VBOX_VIDEO_INFO_SCREEN_F_ACTIVE;

DISPDBG((1, "Update: %d,%d\n", ppdev->ptlDevOrg.x, ppdev->ptlDevOrg.y));

VBoxProcessDisplayInfo(ppdev);

}

}

#endif /* !VBOX_WITH_HGSMI */

BOOL bInitSURF(PPDEV ppdev, BOOL bFirst)

{

DWORD returnedDataLength;

DWORD MaxWidth, MaxHeight;

VIDEO_MEMORY videoMemory;

VIDEO_MEMORY_INFORMATION videoMemoryInformation;

ULONG RemappingNeeded = 0;

//

// Set the current mode into the hardware.

//

if (EngDeviceIoControl(ppdev->hDriver,

IOCTL_VIDEO_SET_CURRENT_MODE,

&(ppdev->ulMode),

sizeof(ULONG),

&RemappingNeeded,

sizeof(ULONG),

&returnedDataLength))

{

DISPDBG((1, "DISP bInitSURF failed IOCTL_SET_MODE\n"));

return(FALSE);

}

//

// If this is the first time we enable the surface we need to map in the

// memory also.

//

if (bFirst || RemappingNeeded)

{

videoMemory.RequestedVirtualAddress = NULL;

if (EngDeviceIoControl(ppdev->hDriver,

IOCTL_VIDEO_MAP_VIDEO_MEMORY,

&videoMemory,

sizeof(VIDEO_MEMORY),

&videoMemoryInformation,

sizeof(VIDEO_MEMORY_INFORMATION),

&returnedDataLength))

{

DISPDBG((1, "DISP bInitSURF failed IOCTL_VIDEO_MAP\n"));

return(FALSE);

}

ppdev->pjScreen = (PBYTE)(videoMemoryInformation.FrameBufferBase);

if (videoMemoryInformation.FrameBufferBase !=

videoMemoryInformation.VideoRamBase)

{

DISPDBG((0, "VideoRamBase does not correspond to FrameBufferBase\n"));

}

//

// Make sure we can access this video memory

//

*(PULONG)(ppdev->pjScreen) = 0xaa55aa55;

if (*(PULONG)(ppdev->pjScreen) != 0xaa55aa55) {

DISPDBG((1, "Frame buffer memory is not accessible.\n"));

return(FALSE);

}

/* Clear VRAM to avoid distortions during the video mode change. */

RtlZeroMemory(ppdev->pjScreen,

ppdev->cyScreen * (ppdev->lDeltaScreen > 0? ppdev->lDeltaScreen: -ppdev->lDeltaScreen));

//

// Initialize the head of the offscreen list to NULL.

//

ppdev->pOffscreenList = NULL;

// It's a hardware pointer; set up pointer attributes.

MaxHeight = ppdev->PointerCapabilities.MaxHeight;

// Allocate space for two DIBs (data/mask) for the pointer. If this

// device supports a color Pointer, we will allocate a larger bitmap.

// If this is a color bitmap we allocate for the largest possible

// bitmap because we have no idea of what the pixel depth might be.

// Width rounded up to nearest byte multiple

if (!(ppdev->PointerCapabilities.Flags & VIDEO_MODE_COLOR_POINTER))

{

MaxWidth = (ppdev->PointerCapabilities.MaxWidth + 7) / 8;

}

else

{

MaxWidth = ppdev->PointerCapabilities.MaxWidth * sizeof(DWORD);

}

ppdev->cjPointerAttributes =

sizeof(VIDEO_POINTER_ATTRIBUTES) +

((sizeof(UCHAR) * MaxWidth * MaxHeight) * 2);

ppdev->pPointerAttributes = (PVIDEO_POINTER_ATTRIBUTES)

EngAllocMem(0, ppdev->cjPointerAttributes, ALLOC_TAG);

if (ppdev->pPointerAttributes == NULL) {

DISPDBG((0, "bInitPointer EngAllocMem failed\n"));

return(FALSE);

}

ppdev->pPointerAttributes->Flags = ppdev->PointerCapabilities.Flags;

ppdev->pPointerAttributes->WidthInBytes = MaxWidth;

ppdev->pPointerAttributes->Width = ppdev->PointerCapabilities.MaxWidth;

ppdev->pPointerAttributes->Height = MaxHeight;

ppdev->pPointerAttributes->Column = 0;

ppdev->pPointerAttributes->Row = 0;

ppdev->pPointerAttributes->Enable = 0;

vboxInitVBoxVideo (ppdev, &videoMemoryInformation);

#ifndef VBOX_WITH_HGSMI

if (ppdev->bVBoxVideoSupported)

{

/* Setup the display information. */

vboxSetupDisplayInfo (ppdev, &videoMemoryInformation);

}

#endif /* !VBOX_WITH_HGSMI */

}

DISPDBG((1, "DISP bInitSURF: ppdev->ulBitCount %d\n", ppdev->ulBitCount));

if ( ppdev->ulBitCount == 16

|| ppdev->ulBitCount == 24

|| ppdev->ulBitCount == 32)

{

#ifndef VBOX_WITH_HGSMI

if (ppdev->pInfo) /* Do not use VBVA on old hosts. */

{

/* Enable VBVA for this video mode. */

vboxVbvaEnable (ppdev);

}

#else

if (ppdev->bHGSMISupported)

{

/* Enable VBVA for this video mode. */

ppdev->bHGSMISupported = vboxVbvaEnable (ppdev);

LogRel(("VBoxDisp[%d]: VBVA %senabled\n", ppdev->iDevice, ppdev->bHGSMISupported? "": "not "));

}

#endif /* VBOX_WITH_HGSMI */

}

DISPDBG((1, "DISP bInitSURF success\n"));

#ifndef VBOX_WITH_HGSMI

/* Update the display information. */

vboxUpdateDisplayInfo (ppdev);

#else

/* Inform the host about this screen layout. */

DISPDBG((1, "bInitSURF: %d,%d\n", ppdev->ptlDevOrg.x, ppdev->ptlDevOrg.y));

VBoxProcessDisplayInfo (ppdev);

#endif /* VBOX_WITH_HGSMI */

#ifdef VBOX_WITH_VIDEOHWACCEL

/* tells we can process host commands */

vboxVHWAEnable(ppdev);

#endif

return(TRUE);

}

VOID vDisableSURF(PPDEV ppdev)

{

DWORD returnedDataLength;

VIDEO_MEMORY videoMemory;

videoMemory.RequestedVirtualAddress = (PVOID) ppdev->pjScreen;

if (EngDeviceIoControl(ppdev->hDriver,

IOCTL_VIDEO_UNMAP_VIDEO_MEMORY,

&videoMemory,

sizeof(VIDEO_MEMORY),

NULL,

0,

&returnedDataLength))

{

DISPDBG((0, "DISP vDisableSURF failed IOCTL_VIDEO_UNMAP\n"));

}

}

BOOL bInitPDEV(

PPDEV ppdev,

DEVMODEW *pDevMode,

GDIINFO *pGdiInfo,

DEVINFO *pDevInfo)

{

ULONG cModes;

PVIDEO_MODE_INFORMATION pVideoBuffer, pVideoModeSelected, pVideoTemp;

VIDEO_COLOR_CAPABILITIES colorCapabilities;

ULONG ulTemp;

BOOL bSelectDefault;

ULONG cbModeSize;

//

// calls the miniport to get mode information.

//

cModes = getAvailableModes(ppdev->hDriver, &pVideoBuffer, &cbModeSize);

if (cModes == 0)

{

return(FALSE);

}

//

// Now see if the requested mode has a match in that table.

//

pVideoModeSelected = NULL;

pVideoTemp = pVideoBuffer;

if ((pDevMode->dmPelsWidth == 0) &&

(pDevMode->dmPelsHeight == 0) &&

(pDevMode->dmBitsPerPel == 0) &&

(pDevMode->dmDisplayFrequency == 0))

{

DISPDBG((2, "Default mode requested"));

bSelectDefault = TRUE;

}

else

{

DISPDBG((2, "Requested mode...\n"));

DISPDBG((2, " Screen width -- %li\n", pDevMode->dmPelsWidth));

DISPDBG((2, " Screen height -- %li\n", pDevMode->dmPelsHeight));

DISPDBG((2, " Bits per pel -- %li\n", pDevMode->dmBitsPerPel));

DISPDBG((2, " Frequency -- %li\n", pDevMode->dmDisplayFrequency));

bSelectDefault = FALSE;

}

while (cModes--)

{

if (pVideoTemp->Length != 0)

{

if (bSelectDefault ||

((pVideoTemp->VisScreenWidth == pDevMode->dmPelsWidth) &&

(pVideoTemp->VisScreenHeight == pDevMode->dmPelsHeight) &&

(pVideoTemp->BitsPerPlane *

pVideoTemp->NumberOfPlanes == pDevMode->dmBitsPerPel) &&

(pVideoTemp->Frequency == pDevMode->dmDisplayFrequency)))

{

pVideoModeSelected = pVideoTemp;

DISPDBG((3, "Found a match\n")) ;

break;

}

}

pVideoTemp = (PVIDEO_MODE_INFORMATION)

(((PUCHAR)pVideoTemp) + cbModeSize);

}

//

// If no mode has been found, return an error

//

if (pVideoModeSelected == NULL)

{

EngFreeMem(pVideoBuffer);

DISPDBG((0,"DISP bInitPDEV failed - no valid modes\n"));

return(FALSE);

}

//

// Fill in the GDIINFO data structure with the information returned from

// the kernel driver.

//

ppdev->ulMode = pVideoModeSelected->ModeIndex;

ppdev->cxScreen = pVideoModeSelected->VisScreenWidth;

ppdev->cyScreen = pVideoModeSelected->VisScreenHeight;

ppdev->ulBitCount = pVideoModeSelected->BitsPerPlane *

pVideoModeSelected->NumberOfPlanes;

ppdev->lDeltaScreen = pVideoModeSelected->ScreenStride;

ppdev->flRed = pVideoModeSelected->RedMask;

ppdev->flGreen = pVideoModeSelected->GreenMask;

ppdev->flBlue = pVideoModeSelected->BlueMask;

if (g_bOnNT40)

{

DISPDBG((0,"DISP bInitPDEV pGdiInfo->ulVersion = %x\n", GDI_DRIVER_VERSION));

pGdiInfo->ulVersion = GDI_DRIVER_VERSION; /* 0x4000 -> NT4 */

}

else

{

DISPDBG((0,"DISP bInitPDEV pGdiInfo->ulVersion = %x\n", 0x5000));

pGdiInfo->ulVersion = 0x5000;

}

pGdiInfo->ulTechnology = DT_RASDISPLAY;

pGdiInfo->ulHorzSize = pVideoModeSelected->XMillimeter;

pGdiInfo->ulVertSize = pVideoModeSelected->YMillimeter;

pGdiInfo->ulHorzRes = ppdev->cxScreen;

pGdiInfo->ulVertRes = ppdev->cyScreen;

pGdiInfo->ulPanningHorzRes = ppdev->cxScreen;

pGdiInfo->ulPanningVertRes = ppdev->cyScreen;

pGdiInfo->cBitsPixel = pVideoModeSelected->BitsPerPlane;

pGdiInfo->cPlanes = pVideoModeSelected->NumberOfPlanes;

pGdiInfo->ulVRefresh = pVideoModeSelected->Frequency;

/* bit block transfers are accelerated */

pGdiInfo->ulBltAlignment = 0;

pGdiInfo->ulLogPixelsX = pDevMode->dmLogPixels;

pGdiInfo->ulLogPixelsY = pDevMode->dmLogPixels;

#ifdef MIPS

if (ppdev->ulBitCount == 8)

pGdiInfo->flTextCaps = (TC_RA_ABLE | TC_SCROLLBLT);

else

#endif

pGdiInfo->flTextCaps = TC_RA_ABLE;

pGdiInfo->flRaster = 0; // flRaster is reserved by DDI

pGdiInfo->ulDACRed = pVideoModeSelected->NumberRedBits;

pGdiInfo->ulDACGreen = pVideoModeSelected->NumberGreenBits;

pGdiInfo->ulDACBlue = pVideoModeSelected->NumberBlueBits;

pGdiInfo->ulAspectX = 0x24; // One-to-one aspect ratio

pGdiInfo->ulAspectY = 0x24;

pGdiInfo->ulAspectXY = 0x33;

pGdiInfo->xStyleStep = 1; // A style unit is 3 pels

pGdiInfo->yStyleStep = 1;

pGdiInfo->denStyleStep = 3;

pGdiInfo->ptlPhysOffset.x = 0;

pGdiInfo->ptlPhysOffset.y = 0;

pGdiInfo->szlPhysSize.cx = 0;

pGdiInfo->szlPhysSize.cy = 0;

// RGB and CMY color info.

//

// try to get it from the miniport.

// if the miniport doesn ot support this feature, use defaults.

//

if (EngDeviceIoControl(ppdev->hDriver,

IOCTL_VIDEO_QUERY_COLOR_CAPABILITIES,

NULL,

0,

&colorCapabilities,

sizeof(VIDEO_COLOR_CAPABILITIES),

&ulTemp))

{

DISPDBG((2, "getcolorCapabilities failed \n"));

pGdiInfo->ciDevice.Red.x = 6700;

pGdiInfo->ciDevice.Red.y = 3300;

pGdiInfo->ciDevice.Red.Y = 0;

pGdiInfo->ciDevice.Green.x = 2100;

pGdiInfo->ciDevice.Green.y = 7100;

pGdiInfo->ciDevice.Green.Y = 0;

pGdiInfo->ciDevice.Blue.x = 1400;

pGdiInfo->ciDevice.Blue.y = 800;

pGdiInfo->ciDevice.Blue.Y = 0;

pGdiInfo->ciDevice.AlignmentWhite.x = 3127;

pGdiInfo->ciDevice.AlignmentWhite.y = 3290;

pGdiInfo->ciDevice.AlignmentWhite.Y = 0;

pGdiInfo->ciDevice.RedGamma = 20000;

pGdiInfo->ciDevice.GreenGamma = 20000;

pGdiInfo->ciDevice.BlueGamma = 20000;

}

else

{

pGdiInfo->ciDevice.Red.x = colorCapabilities.RedChromaticity_x;

pGdiInfo->ciDevice.Red.y = colorCapabilities.RedChromaticity_y;

pGdiInfo->ciDevice.Red.Y = 0;

pGdiInfo->ciDevice.Green.x = colorCapabilities.GreenChromaticity_x;

pGdiInfo->ciDevice.Green.y = colorCapabilities.GreenChromaticity_y;

pGdiInfo->ciDevice.Green.Y = 0;

pGdiInfo->ciDevice.Blue.x = colorCapabilities.BlueChromaticity_x;

pGdiInfo->ciDevice.Blue.y = colorCapabilities.BlueChromaticity_y;

pGdiInfo->ciDevice.Blue.Y = 0;

pGdiInfo->ciDevice.AlignmentWhite.x = colorCapabilities.WhiteChromaticity_x;

pGdiInfo->ciDevice.AlignmentWhite.y = colorCapabilities.WhiteChromaticity_y;

pGdiInfo->ciDevice.AlignmentWhite.Y = colorCapabilities.WhiteChromaticity_Y;

// if we have a color device store the three color gamma values,

// otherwise store the unique gamma value in all three.

if (colorCapabilities.AttributeFlags & VIDEO_DEVICE_COLOR)

{

pGdiInfo->ciDevice.RedGamma = colorCapabilities.RedGamma;

pGdiInfo->ciDevice.GreenGamma = colorCapabilities.GreenGamma;

pGdiInfo->ciDevice.BlueGamma = colorCapabilities.BlueGamma;

}

else

{

pGdiInfo->ciDevice.RedGamma = colorCapabilities.WhiteGamma;

pGdiInfo->ciDevice.GreenGamma = colorCapabilities.WhiteGamma;

pGdiInfo->ciDevice.BlueGamma = colorCapabilities.WhiteGamma;

}

};

pGdiInfo->ciDevice.Cyan.x = 0;

pGdiInfo->ciDevice.Cyan.y = 0;

pGdiInfo->ciDevice.Cyan.Y = 0;

pGdiInfo->ciDevice.Magenta.x = 0;

pGdiInfo->ciDevice.Magenta.y = 0;

pGdiInfo->ciDevice.Magenta.Y = 0;

pGdiInfo->ciDevice.Yellow.x = 0;

pGdiInfo->ciDevice.Yellow.y = 0;

pGdiInfo->ciDevice.Yellow.Y = 0;

// No dye correction for raster displays.

pGdiInfo->ciDevice.MagentaInCyanDye = 0;

pGdiInfo->ciDevice.YellowInCyanDye = 0;

pGdiInfo->ciDevice.CyanInMagentaDye = 0;

pGdiInfo->ciDevice.YellowInMagentaDye = 0;

pGdiInfo->ciDevice.CyanInYellowDye = 0;

pGdiInfo->ciDevice.MagentaInYellowDye = 0;

pGdiInfo->ulDevicePelsDPI = 0; // For printers only

pGdiInfo->ulPrimaryOrder = PRIMARY_ORDER_CBA;

// Note: this should be modified later to take into account the size

// of the display and the resolution.

pGdiInfo->ulHTPatternSize = HT_PATSIZE_4x4_M;

pGdiInfo->flHTFlags = HT_FLAG_ADDITIVE_PRIMS;

// Fill in the basic devinfo structure

*pDevInfo = gDevInfoFrameBuffer;

// Fill in the rest of the devinfo and GdiInfo structures.

if (ppdev->ulBitCount == 8)

{

// It is Palette Managed.

pGdiInfo->ulNumColors = 20;

pGdiInfo->ulNumPalReg = 1 << ppdev->ulBitCount;

pDevInfo->flGraphicsCaps |= (GCAPS_PALMANAGED | GCAPS_COLOR_DITHER);

pGdiInfo->ulHTOutputFormat = HT_FORMAT_8BPP;

pDevInfo->iDitherFormat = BMF_8BPP;

// Assuming palette is orthogonal - all colors are same size.

ppdev->cPaletteShift = 8 - pGdiInfo->ulDACRed;

}

else

{

pGdiInfo->ulNumColors = (ULONG) (-1);

pGdiInfo->ulNumPalReg = 0;

if (ppdev->ulBitCount == 16)

{

pGdiInfo->ulHTOutputFormat = HT_FORMAT_16BPP;

pDevInfo->iDitherFormat = BMF_16BPP;

}

else if (ppdev->ulBitCount == 24)

{

pGdiInfo->ulHTOutputFormat = HT_FORMAT_24BPP;

pDevInfo->iDitherFormat = BMF_24BPP;

}

else

{

pGdiInfo->ulHTOutputFormat = HT_FORMAT_32BPP;

pDevInfo->iDitherFormat = BMF_32BPP;

}

}

EngFreeMem(pVideoBuffer);

return(TRUE);

}

DWORD getAvailableModes(

HANDLE hDriver,

PVIDEO_MODE_INFORMATION *modeInformation,

DWORD *cbModeSize)

{

ULONG ulTemp;

VIDEO_NUM_MODES modes;

PVIDEO_MODE_INFORMATION pVideoTemp;

//

// Get the number of modes supported by the mini-port

//

if (EngDeviceIoControl(hDriver,

IOCTL_VIDEO_QUERY_NUM_AVAIL_MODES,

NULL,

0,

&modes,

sizeof(VIDEO_NUM_MODES),

&ulTemp))

{

DISPDBG((0, "getAvailableModes failed VIDEO_QUERY_NUM_AVAIL_MODES\n"));

return(0);

}

*cbModeSize = modes.ModeInformationLength;

//

// Allocate the buffer for the mini-port to write the modes in.

//

*modeInformation = (PVIDEO_MODE_INFORMATION)

EngAllocMem(0, modes.NumModes *

modes.ModeInformationLength, ALLOC_TAG);

if (*modeInformation == (PVIDEO_MODE_INFORMATION) NULL)

{

DISPDBG((0, "getAvailableModes failed EngAllocMem\n"));

return 0;

}

//

// Ask the mini-port to fill in the available modes.

//

if (EngDeviceIoControl(hDriver,

IOCTL_VIDEO_QUERY_AVAIL_MODES,

NULL,

0,

*modeInformation,

modes.NumModes * modes.ModeInformationLength,

&ulTemp))

{

DISPDBG((0, "getAvailableModes failed VIDEO_QUERY_AVAIL_MODES\n"));

EngFreeMem(*modeInformation);

*modeInformation = (PVIDEO_MODE_INFORMATION) NULL;

return(0);

}

//

// Now see which of these modes are supported by the display driver.

// As an internal mechanism, set the length to 0 for the modes we

// DO NOT support.

//

ulTemp = modes.NumModes;

pVideoTemp = *modeInformation;

//

// Mode is rejected if it is not one plane, or not graphics, or is not

// one of 8, 16 or 32 bits per pel.

//

while (ulTemp--)

{

if ((pVideoTemp->NumberOfPlanes != 1 ) ||

!(pVideoTemp->AttributeFlags & VIDEO_MODE_GRAPHICS) ||

(pVideoTemp->AttributeFlags & VIDEO_MODE_BANKED) ||

((pVideoTemp->BitsPerPlane != 8) &&

(pVideoTemp->BitsPerPlane != 16) &&

(pVideoTemp->BitsPerPlane != 24) &&

(pVideoTemp->BitsPerPlane != 32)))

{

pVideoTemp->Length = 0;

}

pVideoTemp = (PVIDEO_MODE_INFORMATION)

(((PUCHAR)pVideoTemp) + modes.ModeInformationLength);

}

return modes.NumModes;

}