#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 */
+ RtlStringCbCopyNW(pGraphicsDevice->szNtDeviceName,
+ sizeof(pGraphicsDevice->szNtDeviceName),
+ pustrDeviceName->Buffer,
+ pustrDeviceName->Length);
+
+ /* Create a win device name (FIXME: virtual devices!) */
+ swprintf(pGraphicsDevice->szWinDeviceName, L"\\\\.\\VIDEO%d", (int)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
+ ExFreePoolWithTag(pGraphicsDevice, GDITAG_GDEVICE);
+ return NULL;
+ }
+
+ /* 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)
+ {
+ DPRINT("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");
+ ExFreePoolWithTag(pGraphicsDevice, GDITAG_GDEVICE);
+ 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");
+ ExFreePoolWithTag(pGraphicsDevice, GDITAG_GDEVICE);
+ 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;
+ DPRINT("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);
+ DPRINT("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 IPR */
+ /* Build IRP */
liStartOffset.QuadPart = ullStartOffset;
pIrp = IoBuildSynchronousFsdRequest(ulMajorFunction,
pDeviceObject,
/* Initialize an event */
KeInitializeEvent(&Event, SynchronizationEvent, FALSE);
- /* Build IO control IPR */
+ /* Build IO control IRP */
pIrp = IoBuildDeviceIoControlRequest(dwIoControlCode,
pDeviceObject,
lpInBuffer,
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