Kernel-Mode supporto per il driver client installabile OpenGL

Il driver client installabile OpenGL (ICD) può ottenere lo stesso livello di supporto per chiamare i servizi in modalità kernel del driver di visualizzazione in modalità utente Direct3D. Tuttavia, invece di ottenere l'accesso ai servizi in modalità kernel tramite funzioni di callback come il runtime Di Microsoft Direct3D fornito tramite il membro pAdapterCallbacks della struttura D3DDDIARG_OPENADAPTER e il membro pCallbacks della struttura di D3DDDIARG_CREATEDEVICE , l'ICD OpenGL deve caricare Gdi32.dll e inizializzare l'uso delle funzioni openGL-kernel-mode-access , come illustrato nel codice di esempio seguente. Questo codice non implementa Windows 8 miglioramenti in OpenGL.

#include "d3dkmthk.h"

PFND3DKMT_CREATEALLOCATION pfnKTCreateAllocation = NULL;
PFND3DKMT_DESTROYALLOCATION pfnKTDestroyAllocation = NULL;
PFND3DKMT_SETALLOCATIONPRIORITY pfnKTSetAllocationPriority = NULL;
PFND3DKMT_QUERYALLOCATIONRESIDENCY pfnKTQueryAllocationResidency = NULL;
PFND3DKMT_QUERYRESOURCEINFO pfnKTQueryResourceInfo = NULL;
PFND3DKMT_OPENRESOURCE pfnKTOpenResource = NULL;
PFND3DKMT_CREATEDEVICE pfnKTCreateDevice = NULL;
PFND3DKMT_DESTROYDEVICE pfnKTDestroyDevice = NULL;
PFND3DKMT_QUERYADAPTERINFO pfnKTQueryAdapterInfo = NULL;
PFND3DKMT_LOCK pfnKTLock = NULL;
PFND3DKMT_UNLOCK pfnKTUnlock = NULL;
PFND3DKMT_GETDISPLAYMODELIST pfnKTGetDisplayModeList = NULL;
PFND3DKMT_SETDISPLAYMODE pfnKTSetDisplayMode = NULL;
PFND3DKMT_GETMULTISAMPLEMETHODLIST pfnKTGetMultisampleMethodList = NULL;
PFND3DKMT_PRESENT pfnKTPresent = NULL;
PFND3DKMT_RENDER pfnKTRender = NULL;
PFND3DKMT_OPENADAPTERFROMHDC pfnKTOpenAdapterFromHdc = NULL;
PFND3DKMT_OPENADAPTERFROMDEVICENAME pfnKTOpenAdapterFromDeviceName = NULL;
PFND3DKMT_CLOSEADAPTER pfnKTCloseAdapter = NULL;
PFND3DKMT_GETSHAREDPRIMARYHANDLE pfnKTGetSharedPrimaryHandle = NULL;
PFND3DKMT_ESCAPE pfnKTEscape = NULL;
PFND3DKMT_SETVIDPNSOURCEOWNER pfnKTSetVidPnSourceOwner = NULL;
 
PFND3DKMT_CREATEOVERLAY pfnKTCreateOverlay = NULL;
PFND3DKMT_UPDATEOVERLAY pfnKTUpdateOverlay = NULL;
PFND3DKMT_FLIPOVERLAY pfnKTFlipOverlay = NULL;
PFND3DKMT_DESTROYOVERLAY pfnKTDestroyOverlay = NULL;
PFND3DKMT_WAITFORVERTICALBLANKEVENT pfnKTWaitForVerticalBlankEvent = NULL;
PFND3DKMT_SETGAMMARAMP pfnKTSetGammaRamp = NULL;
PFND3DKMT_GETDEVICESTATE pfnKTGetDeviceState = NULL;
PFND3DKMT_CREATEDCFROMMEMORY pfnKTCreateDCFromMemory = NULL;
PFND3DKMT_DESTROYDCFROMMEMORY pfnKTDestroyDCFromMemory = NULL;
PFND3DKMT_SETCONTEXTSCHEDULINGPRIORITY pfnKTSetContextSchedulingPriority = NULL;
PFND3DKMT_GETCONTEXTSCHEDULINGPRIORITY pfnKTGetContextSchedulingPriority = NULL;
PFND3DKMT_SETPROCESSSCHEDULINGPRIORITYCLASS pfnKTSetProcessSchedulingPriorityClass = NULL;
PFND3DKMT_GETPROCESSSCHEDULINGPRIORITYCLASS pfnKTGetProcessSchedulingPriorityClass = NULL;
PFND3DKMT_RELEASEPROCESSVIDPNSOURCEOWNERS pfnKTReleaseProcessVidPnSourceOwners = NULL;
PFND3DKMT_GETSCANLINE pfnKTGetScanLine = NULL;
PFND3DKMT_POLLDISPLAYCHILDREN pfnKTPollDisplayChildren = NULL;
PFND3DKMT_SETQUEUEDLIMIT pfnKTSetQueuedLimit = NULL;
PFND3DKMT_INVALIDATEACTIVEVIDPN pfnKTInvalidateActiveVidPn = NULL;
PFND3DKMT_CHECKOCCLUSION pfnKTCheckOcclusion = NULL;
PFND3DKMT_GETPRESENTHISTORY pfnKTGetPresentHistory = NULL;
PFND3DKMT_CREATECONTEXT pfnKTCreateContext = NULL;
PFND3DKMT_DESTROYCONTEXT pfnKTDestroyContext = NULL;
PFND3DKMT_CREATESYNCHRONIZATIONOBJECT pfnKTCreateSynchronizationObject = NULL;
PFND3DKMT_DESTROYSYNCHRONIZATIONOBJECT pfnKTDestroySynchronizationObject = NULL;
PFND3DKMT_WAITFORSYNCHRONIZATIONOBJECT pfnKTWaitForSynchronizationObject = NULL;
PFND3DKMT_SIGNALSYNCHRONIZATIONOBJECT pfnKTSignalSynchronizationObject = NULL;
PFND3DKMT_CHECKMONITORPOWERSTATE pfnKTCheckMonitorPowerState = NULL;
PFND3DKMT_OPENADAPTERFROMGDIDISPLAYNAME pfnKTOpenAdapterFromGDIDisplayName = NULL;
PFND3DKMT_CHECKEXCLUSIVEOWNERSHIP pfnKTCheckExclusiveOwnership = NULL;
PFND3DKMT_SETDISPLAYPRIVATEDRIVERFORMAT pfnKTSetDisplayPrivateDriverFormat = NULL;
PFND3DKMT_SHAREDPRIMARYLOCKNOTIFICATION pfnKTSharedPrimaryLockNotification = NULL;
PFND3DKMT_SHAREDPRIMARYUNLOCKNOTIFICATION pfnKTSharedPrimaryUnLockNotification = NULL;

HRESULT InitKernelTHunks()
{
    HINSTANCE hInst = NULL;

    hInst = LoadLibrary( "gdi32.dll" );
    if (hInst == NULL) {
        return E_FAIL;
    }

    pfnKTCreateAllocation = (PFND3DKMT_CREATEALLOCATION)
         GetProcAddress((HMODULE)hInst, "D3DKMTCreateAllocation" );

    pfnKTQueryResourceInfo = (PFND3DKMT_QUERYRESOURCEINFO)
         GetProcAddress((HMODULE)hInst, "D3DKMTQueryResourceInfo" );

    pfnKTOpenResource = (PFND3DKMT_OPENRESOURCE)
         GetProcAddress((HMODULE)hInst, "D3DKMTCreateAllocation" );

    pfnKTDestroyAllocation = (PFND3DKMT_DESTROYALLOCATION)
         GetProcAddress((HMODULE)hInst, "D3DKMTDestroyAllocation" );

    pfnKTSetAllocationPriority = (PFND3DKMT_SETALLOCATIONPRIORITY)
         GetProcAddress((HMODULE)hInst, "D3DKMTSetAllocationPriority" );

    pfnKTQueryAllocationResidency = (PFND3DKMT_QUERYALLOCATIONRESIDENCY)
         GetProcAddress((HMODULE)hInst, "D3DKMTQueryAllocationResidency" );

    pfnKTCreateDevice = (PFND3DKMT_CREATEDEVICE)
         GetProcAddress((HMODULE)hInst, "D3DKMTCreateDevice" );

    pfnKTDestroyDevice = (PFND3DKMT_DESTROYDEVICE)
         GetProcAddress((HMODULE)hInst, "D3DKMTDestroyDevice" );

    pfnKTQueryAdapterInfo = (PFND3DKMT_QUERYADAPTERINFO)
         GetProcAddress((HMODULE)hInst, "D3DKMTQueryAdapterInfo" );

    pfnKTLock = (PFND3DKMT_LOCK)
         GetProcAddress((HMODULE)hInst, "D3DKMTLock" );

    pfnKTUnlock = (PFND3DKMT_UNLOCK)
         GetProcAddress((HMODULE)hInst, "D3DKMTUnlock" );

    pfnKTGetDisplayModeList = (PFND3DKMT_GETDISPLAYMODELIST)
         GetProcAddress((HMODULE)hInst, "D3DKMTGetDisplayModeList" );

    pfnKTSetDisplayMode = (PFND3DKMT_SETDISPLAYMODE)
         GetProcAddress((HMODULE)hInst, "D3DKMTSetDisplayMode" );

    pfnKTGetMultisampleMethodList = (PFND3DKMT_GETDISPLAYMODELIST)
         GetProcAddress((HMODULE)hInst, "D3DKMTGetMultisampleMethodList" );

    pfnKTPresent = (PFND3DKMT_PRESENT)
         GetProcAddress((HMODULE)hInst, "D3DKMTPresent" );

    pfnKTRender = (PFND3DKMT_RENDER)
         GetProcAddress((HMODULE)hInst, "D3DKMTRender" );

    pfnKTOpenAdapterFromHdc = (PFND3DKMT_OPENADAPTERFROMHDC)
         GetProcAddress((HMODULE)hInst, "D3DKMTOpenAdapterFromHdc" );

    pfnKTOpenAdapterFromDeviceName = (PFND3DKMT_OPENADAPTERFROMDEVICENAME)
         GetProcAddress((HMODULE)hInst, "D3DKMTOpenAdapterFromDeviceName" );

    pfnKTCloseAdapter = (PFND3DKMT_CLOSEADAPTER)
         GetProcAddress((HMODULE)hInst, "D3DKMTCloseAdapter" );

    pfnKTGetSharedPrimaryHandle = (PFND3DKMT_GETSHAREDPRIMARYHANDLE)
         GetProcAddress((HMODULE)hInst, "D3DKMTGetSharedPrimaryHandle" );

    pfnKTEscape = (PFND3DKMT_ESCAPE)
         GetProcAddress((HMODULE)hInst, "D3DKMTEscape" );
 
    pfnKTSetVidPnSourceOwner = (PFND3DKMT_SETVIDPNSOURCEOWNER)
         GetProcAddress((HMODULE)hInst, "D3DKMTSetVidPnSourceOwner" );

    pfnKTReleaseProcessVidPnSourceOwners = (PFND3DKMT_RELEASEPROCESSVIDPNSOURCEOWNERS)
         GetProcAddress((HMODULE)hInst, "D3DKMTReleaseProcessVidPnSourceOwners" );

    pfnKTCreateOverlay = (PFND3DKMT_CREATEOVERLAY)
         GetProcAddress((HMODULE)hInst, "D3DKMTCreateOverlay" );

    pfnKTUpdateOverlay = (PFND3DKMT_UPDATEOVERLAY)
         GetProcAddress((HMODULE)hInst, "D3DKMTUpdateOverlay" );

    pfnKTFlipOverlay = (PFND3DKMT_FLIPOVERLAY)
         GetProcAddress((HMODULE)hInst, "D3DKMTFlipOverlay" );

    pfnKTDestroyOverlay = (PFND3DKMT_DESTROYOVERLAY)
         GetProcAddress((HMODULE)hInst, "D3DKMTDestroyOverlay" );

    pfnKTWaitForVerticalBlankEvent = (PFND3DKMT_WAITFORVERTICALBLANKEVENT)
         GetProcAddress((HMODULE)hInst, "D3DKMTWaitForVerticalBlankEvent" );

    pfnKTSetGammaRamp = (PFND3DKMT_SETGAMMARAMP)
         GetProcAddress((HMODULE)hInst, "D3DKMTSetGammaRamp" );

    pfnKTGetDeviceState = (PFND3DKMT_GETDEVICESTATE)
         GetProcAddress((HMODULE)hInst, "D3DKMTGetDeviceState" );

    pfnKTCreateDCFromMemory = (PFND3DKMT_CREATEDCFROMMEMORY)
         GetProcAddress((HMODULE)hInst, "D3DKMTCreateDCFromMemory" );

    pfnKTDestroyDCFromMemory = (PFND3DKMT_DESTROYDCFROMMEMORY)
         GetProcAddress((HMODULE)hInst, "D3DKMTDestroyDCFromMemory" );

    pfnKTSetContextSchedulingPriority = (PFND3DKMT_SETCONTEXTSCHEDULINGPRIORITY)
         GetProcAddress((HMODULE)hInst, "D3DKMTSetContextSchedulingPriority" );

    pfnKTGetContextSchedulingPriority = (PFND3DKMT_GETCONTEXTSCHEDULINGPRIORITY)
         GetProcAddress((HMODULE)hInst, "D3DKMTGetContextSchedulingPriority" );

    pfnKTSetProcessSchedulingPriorityClass = (PFND3DKMT_SETPROCESSSCHEDULINGPRIORITYCLASS)
         GetProcAddress((HMODULE)hInst, "D3DKMTSetProcessSchedulingPriorityClass" );

    pfnKTGetProcessSchedulingPriorityClass = (PFND3DKMT_GETPROCESSSCHEDULINGPRIORITYCLASS)
         GetProcAddress((HMODULE)hInst, "D3DKMTGetProcessSchedulingPriorityClass" );

    pfnKTGetScanLine = (PFND3DKMT_GETSCANLINE)
         GetProcAddress((HMODULE)hInst, "D3DKMTGetScanLine" );

    pfnKTSetQueuedLimit = (PFND3DKMT_SETQUEUEDLIMIT)
         GetProcAddress((HMODULE)hInst, "D3DKMTSetQueuedLimit" );

    pfnKTPollDisplayChildren = (PFND3DKMT_POLLDISPLAYCHILDREN)
         GetProcAddress((HMODULE)hInst, "D3DKMTPollDisplayChildren" );

    pfnKTInvalidateActiveVidPn = (PFND3DKMT_INVALIDATEACTIVEVIDPN)
         GetProcAddress((HMODULE)hInst, "D3DKMTInvalidateActiveVidPn" );

    pfnKTCheckOcclusion = (PFND3DKMT_CHECKOCCLUSION)
         GetProcAddress((HMODULE)hInst, "D3DKMTCheckOcclusion" );

    pfnKTGetPresentHistory = (PFND3DKMT_GETPRESENTHISTORY)
         GetProcAddress((HMODULE)hInst, "D3DKMTGetPresentHistory" );

    pfnKTCreateContext = (PFND3DKMT_CREATECONTEXT)
         GetProcAddress((HMODULE)hInst, "D3DKMTCreateContext" );

    pfnKTDestroyContext = (PFND3DKMT_DESTROYCONTEXT)
         GetProcAddress((HMODULE)hInst, "D3DKMTDestroyContext" );

    pfnKTCreateSynchronizationObject = (PFND3DKMT_CREATESYNCHRONIZATIONOBJECT)
         GetProcAddress((HMODULE)hInst, "D3DKMTCreateSynchronizationObject" );

    pfnKTDestroySynchronizationObject = (PFND3DKMT_DESTROYSYNCHRONIZATIONOBJECT)
         GetProcAddress((HMODULE)hInst, "D3DKMTDestroySynchronizationObject" );

    pfnKTWaitForSynchronizationObject = (PFND3DKMT_WAITFORSYNCHRONIZATIONOBJECT)
         GetProcAddress((HMODULE)hInst, "D3DKMTWaitForSynchronizationObject" );

    pfnKTSignalSynchronizationObject = (PFND3DKMT_SIGNALSYNCHRONIZATIONOBJECT)
         GetProcAddress((HMODULE)hInst, "D3DKMTSignalSynchronizationObject" );

    pfnKTCheckMonitorPowerState = (PFND3DKMT_CHECKMONITORPOWERSTATE)
         GetProcAddress((HMODULE)hInst, "D3DKMTCheckMonitorPowerState" );

    pfnKTOpenAdapterFromGDIDisplayName = (PFND3DKMT_OPENADAPTERFROMGDIDISPLAYNAME)
         GetProcAddress((HMODULE)hInst, "D3DKMTOpenAdapterFromGdiDisplayName" );

    pfnKTCheckExclusiveOwnership = (PFND3DKMT_CHECKEXCLUSIVEOWNERSHIP)
         GetProcAddress((HMODULE)hInst, "D3DKMTCheckExclusiveOwnership" );

    pfnKTSetDisplayPrivateDriverFormat = (PFND3DKMT_SETDISPLAYPRIVATEDRIVERFORMAT)
         GetProcAddress((HMODULE)hInst, "D3DKMTSetDisplayPrivateDriverFormat" );

    pfnKTSharedPrimaryLockNotification = (PFND3DKMT_SHAREDPRIMARYLOCKNOTIFICATION)
         GetProcAddress((HMODULE)hInst, "D3DKMTSharedPrimaryLockNotification" );

    pfnKTSharedPrimaryUnLockNotification = (PFND3DKMT_SHAREDPRIMARYUNLOCKNOTIFICATION)
         GetProcAddress((HMODULE)hInst, "D3DKMTSharedPrimaryUnLockNotification" );

    if ((pfnKTCreateAllocation == NULL) ||
        (pfnKTQueryResourceInfo == NULL) ||
        (pfnKTOpenResource == NULL) ||
        (pfnKTDestroyAllocation == NULL) ||
        (pfnKTSetAllocationPriority == NULL) ||
        (pfnKTQueryAllocationResidency == NULL) ||
        (pfnKTCreateDevice == NULL) ||
        (pfnKTDestroyDevice == NULL) ||
        (pfnKTQueryAdapterInfo == NULL) ||
        (pfnKTLock == NULL) ||
        (pfnKTUnlock == NULL) ||
        (pfnKTGetDisplayModeList == NULL) ||
        (pfnKTSetDisplayMode == NULL) ||
        (pfnKTGetMultisampleMethodList == NULL) ||
        (pfnKTPresent == NULL) ||
        (pfnKTRender == NULL) ||
        (pfnKTOpenAdapterFromHdc == NULL) ||
        (pfnKTOpenAdapterFromDeviceName == NULL) ||
        (pfnKTCloseAdapter == NULL) ||
        (pfnKTGetSharedPrimaryHandle == NULL) ||
        (pfnKTEscape == NULL) ||
        (pfnKTSetVidPnSourceOwner == NULL) ||
        (pfnKTCreateOverlay == NULL) ||
        (pfnKTUpdateOverlay == NULL) ||
        (pfnKTFlipOverlay == NULL) ||
        (pfnKTDestroyOverlay == NULL) ||
        (pfnKTWaitForVerticalBlankEvent == NULL) ||
        (pfnKTSetGammaRamp == NULL) ||
        (pfnKTGetDeviceState == NULL) ||
        (pfnKTCreateDCFromMemory == NULL) ||
        (pfnKTDestroyDCFromMemory == NULL) ||
        (pfnKTSetContextSchedulingPriority == NULL) ||
        (pfnKTGetContextSchedulingPriority == NULL) ||
        (pfnKTSetProcessSchedulingPriorityClass == NULL) ||
        (pfnKTGetProcessSchedulingPriorityClass == NULL) ||
        (pfnKTReleaseProcessVidPnSourceOwners == NULL) ||
        (pfnKTGetScanLine == NULL) ||
        (pfnKTSetQueuedLimit == NULL) ||
        (pfnKTPollDisplayChildren == NULL) ||
        (pfnKTInvalidateActiveVidPn == NULL) ||
        (pfnKTCheckOcclusion == NULL) ||
        (pfnKTCreateContext == NULL) ||
        (pfnKTDestroyContext == NULL) ||
        (pfnKTCreateSynchronizationObject == NULL) ||
        (pfnKTDestroySynchronizationObject == NULL) ||
        (pfnKTWaitForSynchronizationObject == NULL) ||
        (pfnKTSignalSynchronizationObject == NULL) ||
        (pfnKTCheckMonitorPowerState == NULL) ||
        (pfnKTOpenAdapterFromGDIDisplayName == NULL) ||
        (pfnKTCheckExclusiveOwnership == NULL) ||
        (pfnKTSetDisplayPrivateDriverFormat == NULL) ||
        (pfnKTSharedPrimaryLockNotification == NULL) ||
         (pfnKTSharedPrimaryUnLockNotification == NULL) ||
  (pfnKTGetPresentHistory == NULL))
    {
        return E_FAIL;
    }

    return S_OK;
}