#define NDEBUG
#include <debug.h>
-PGRAPHICS_DEVICE gpPrimaryGraphicsDevice;
-PGRAPHICS_DEVICE gpVgaGraphicsDevice;
-
-static PGRAPHICS_DEVICE gpGraphicsDeviceFirst = NULL;
-static PGRAPHICS_DEVICE gpGraphicsDeviceLast = NULL;
-static HSEMAPHORE ghsemGraphicsDeviceList;
-static ULONG giDevNum = 1;
-
-INIT_FUNCTION
-NTSTATUS
-NTAPI
-InitDeviceImpl()
-{
- ghsemGraphicsDeviceList = EngCreateSemaphore();
- if (!ghsemGraphicsDeviceList)
- return STATUS_INSUFFICIENT_RESOURCES;
-
- return STATUS_SUCCESS;
-}
-
-
-PGRAPHICS_DEVICE
-NTAPI
-EngpRegisterGraphicsDevice(
- PUNICODE_STRING pustrDeviceName,
- PUNICODE_STRING pustrDiplayDrivers,
- PUNICODE_STRING pustrDescription,
- PDEVMODEW pdmDefault)
-{
- PGRAPHICS_DEVICE pGraphicsDevice;
- PDEVICE_OBJECT pDeviceObject;
- PFILE_OBJECT pFileObject;
- NTSTATUS Status;
- PWSTR pwsz;
- ULONG i, cj, cModes = 0;
- BOOL bEnable = TRUE;
- PDEVMODEINFO pdminfo;
- PDEVMODEW pdm, pdmEnd;
- PLDEVOBJ pldev;
-
- DPRINT("EngpRegisterGraphicsDevice(%wZ)\n", pustrDeviceName);
-
- /* Allocate a GRAPHICS_DEVICE structure */
- pGraphicsDevice = ExAllocatePoolWithTag(PagedPool,
- sizeof(GRAPHICS_DEVICE),
- GDITAG_GDEVICE);
- if (!pGraphicsDevice)
- {
- DPRINT1("ExAllocatePoolWithTag failed\n");
- return NULL;
- }
-
- /* Try to open the driver */
- Status = IoGetDeviceObjectPointer(pustrDeviceName,
- FILE_READ_DATA | FILE_WRITE_DATA,
- &pFileObject,
- &pDeviceObject);
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("Could not open driver %wZ, 0x%lx\n", pustrDeviceName, Status);
- ExFreePoolWithTag(pGraphicsDevice, GDITAG_GDEVICE);
- return NULL;
- }
-
- /* Enable the device */
- EngFileWrite(pFileObject, &bEnable, sizeof(BOOL), &cj);
-
- /* Copy the device and file object pointers */
- pGraphicsDevice->DeviceObject = pDeviceObject;
- pGraphicsDevice->FileObject = pFileObject;
-
- /* Copy device name */
- wcsncpy(pGraphicsDevice->szNtDeviceName,
- pustrDeviceName->Buffer,
- sizeof(pGraphicsDevice->szNtDeviceName) / sizeof(WCHAR));
-
- /* Create a win device name (FIXME: virtual devices!) */
- swprintf(pGraphicsDevice->szWinDeviceName, L"\\\\.\\VIDEO%d", (CHAR)giDevNum);
-
- /* Allocate a buffer for the strings */
- cj = pustrDiplayDrivers->Length + pustrDescription->Length + sizeof(WCHAR);
- pwsz = ExAllocatePoolWithTag(PagedPool, cj, GDITAG_DRVSUP);
- if (!pwsz)
- {
- DPRINT1("Could not allocate string buffer\n");
- ASSERT(FALSE); // FIXME
- }
-
- /* Copy display driver names */
- pGraphicsDevice->pDiplayDrivers = pwsz;
- RtlCopyMemory(pGraphicsDevice->pDiplayDrivers,
- pustrDiplayDrivers->Buffer,
- pustrDiplayDrivers->Length);
-
- /* Copy description */
- pGraphicsDevice->pwszDescription = pwsz + pustrDiplayDrivers->Length / sizeof(WCHAR);
- RtlCopyMemory(pGraphicsDevice->pwszDescription,
- pustrDescription->Buffer,
- pustrDescription->Length + sizeof(WCHAR));
-
- /* Initialize the pdevmodeInfo list and default index */
- pGraphicsDevice->pdevmodeInfo = NULL;
- pGraphicsDevice->iDefaultMode = 0;
- pGraphicsDevice->iCurrentMode = 0;
-
- // FIXME: initialize state flags
- pGraphicsDevice->StateFlags = 0;
-
- /* Loop through the driver names
- * This is a REG_MULTI_SZ string */
- for (; *pwsz; pwsz += wcslen(pwsz) + 1)
- {
- DPRINT1("trying driver: %ls\n", pwsz);
- /* Try to load the display driver */
- pldev = EngLoadImageEx(pwsz, LDEV_DEVICE_DISPLAY);
- if (!pldev)
- {
- DPRINT1("Could not load driver: '%ls'\n", pwsz);
- continue;
- }
-
- /* Get the mode list from the driver */
- pdminfo = LDEVOBJ_pdmiGetModes(pldev, pDeviceObject);
- if (!pdminfo)
- {
- DPRINT1("Could not get mode list for '%ls'\n", pwsz);
- continue;
- }
-
- /* Attach the mode info to the device */
- pdminfo->pdmiNext = pGraphicsDevice->pdevmodeInfo;
- pGraphicsDevice->pdevmodeInfo = pdminfo;
-
- /* Count DEVMODEs */
- pdmEnd = (DEVMODEW*)((PCHAR)pdminfo->adevmode + pdminfo->cbdevmode);
- for (pdm = pdminfo->adevmode;
- pdm + 1 <= pdmEnd;
- pdm = (DEVMODEW*)((PCHAR)pdm + pdm->dmSize + pdm->dmDriverExtra))
- {
- cModes++;
- }
-
- // FIXME: release the driver again until it's used?
- }
-
- if (!pGraphicsDevice->pdevmodeInfo || cModes == 0)
- {
- DPRINT1("No devmodes\n");
- ExFreePool(pGraphicsDevice);
- return NULL;
- }
-
- /* Allocate an index buffer */
- pGraphicsDevice->cDevModes = cModes;
- pGraphicsDevice->pDevModeList = ExAllocatePoolWithTag(PagedPool,
- cModes * sizeof(DEVMODEENTRY),
- GDITAG_GDEVICE);
- if (!pGraphicsDevice->pDevModeList)
- {
- DPRINT1("No devmode list\n");
- ExFreePool(pGraphicsDevice);
- return NULL;
- }
-
- /* Loop through all DEVMODEINFOs */
- for (pdminfo = pGraphicsDevice->pdevmodeInfo, i = 0;
- pdminfo;
- pdminfo = pdminfo->pdmiNext)
- {
- /* Calculate End of the DEVMODEs */
- pdmEnd = (DEVMODEW*)((PCHAR)pdminfo->adevmode + pdminfo->cbdevmode);
-
- /* Loop through the DEVMODEs */
- for (pdm = pdminfo->adevmode;
- pdm + 1 <= pdmEnd;
- pdm = (PDEVMODEW)((PCHAR)pdm + pdm->dmSize + pdm->dmDriverExtra))
- {
- /* Compare with the default entry */
- if (pdm->dmBitsPerPel == pdmDefault->dmBitsPerPel &&
- pdm->dmPelsWidth == pdmDefault->dmPelsWidth &&
- pdm->dmPelsHeight == pdmDefault->dmPelsHeight &&
- pdm->dmDisplayFrequency == pdmDefault->dmDisplayFrequency)
- {
- pGraphicsDevice->iDefaultMode = i;
- pGraphicsDevice->iCurrentMode = i;
- DPRINT1("Found default entry: %ld '%ls'\n", i, pdm->dmDeviceName);
- }
-
- /* Initialize the entry */
- pGraphicsDevice->pDevModeList[i].dwFlags = 0;
- pGraphicsDevice->pDevModeList[i].pdm = pdm;
- i++;
- }
- }
-
- /* Lock loader */
- EngAcquireSemaphore(ghsemGraphicsDeviceList);
-
- /* Insert the device into the global list */
- pGraphicsDevice->pNextGraphicsDevice = gpGraphicsDeviceLast;
- gpGraphicsDeviceLast = pGraphicsDevice;
- if (!gpGraphicsDeviceFirst)
- gpGraphicsDeviceFirst = pGraphicsDevice;
-
- /* Increment device number */
- giDevNum++;
-
- /* Unlock loader */
- EngReleaseSemaphore(ghsemGraphicsDeviceList);
- DPRINT1("Prepared %ld modes for %ls\n", cModes, pGraphicsDevice->pwszDescription);
-
- return pGraphicsDevice;
-}
-
-
-PGRAPHICS_DEVICE
-NTAPI
-EngpFindGraphicsDevice(
- PUNICODE_STRING pustrDevice,
- ULONG iDevNum,
- DWORD dwFlags)
-{
- UNICODE_STRING ustrCurrent;
- PGRAPHICS_DEVICE pGraphicsDevice;
- ULONG i;
-
- /* Lock list */
- EngAcquireSemaphore(ghsemGraphicsDeviceList);
-
- if (pustrDevice)
- {
- /* Loop through the list of devices */
- for (pGraphicsDevice = gpGraphicsDeviceFirst;
- pGraphicsDevice;
- pGraphicsDevice = pGraphicsDevice->pNextGraphicsDevice)
- {
- /* Compare the device name */
- RtlInitUnicodeString(&ustrCurrent, pGraphicsDevice->szWinDeviceName);
- if (RtlEqualUnicodeString(&ustrCurrent, pustrDevice, FALSE))
- {
- break;
- }
- }
- }
- else
- {
- /* Loop through the list of devices */
- for (pGraphicsDevice = gpGraphicsDeviceFirst, i = 0;
- pGraphicsDevice && i < iDevNum;
- pGraphicsDevice = pGraphicsDevice->pNextGraphicsDevice, i++);
- }
-
- /* Unlock list */
- EngReleaseSemaphore(ghsemGraphicsDeviceList);
-
- return pGraphicsDevice;
-}
-
-
static
NTSTATUS
EngpFileIoRequest(
/* Initialize an event */
KeInitializeEvent(&Event, SynchronizationEvent, FALSE);
- /* Build IRP */
+ /* Build IPR */
liStartOffset.QuadPart = ullStartOffset;
pIrp = IoBuildSynchronousFsdRequest(ulMajorFunction,
pDeviceObject,
/* Initialize an event */
KeInitializeEvent(&Event, SynchronizationEvent, FALSE);
- /* Build IO control IRP */
+ /* Build IO control IPR */
pIrp = IoBuildDeviceIoControlRequest(dwIoControlCode,
pDeviceObject,
lpInBuffer,
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