[greatlrd] 28514: Bug Fix from Gregor Brunmar (gregor dot brunmar at home dot se), IRC nick ALiENiD we getting change display working again with this bugfix. details * Added missing info from PrimarySurface.DMW when display driver defaults back to the video drivers standard mode * Fixed caching system in IntEnumDisplaySettings when run more than once * Hacked a way around the bug in FindDDIDriver
24 Aug
2007
24 Aug
'07
12:10 p.m.
Author: greatlrd
Date: Fri Aug 24 16:10:10 2007
New Revision: 28514
URL: http://svn.reactos.org/svn/reactos?rev=28514&view=rev
Log:
Bug Fix from Gregor Brunmar (gregor dot brunmar at home dot se), IRC nick ALiENiD
we getting change display working again with this bugfix. details
* Added missing info from PrimarySurface.DMW when display driver defaults back to the
video drivers standard mode
* Fixed caching system in IntEnumDisplaySettings when run more than once
* Hacked a way around the bug in FindDDIDriver
Modified:
trunk/reactos/subsystems/win32/win32k/include/driver.h
trunk/reactos/subsystems/win32/win32k/misc/driver.c
trunk/reactos/subsystems/win32/win32k/objects/dc.c
Modified: trunk/reactos/subsystems/win32/win32k/include/driver.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/in…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/include/driver.h (original)
+++ trunk/reactos/subsystems/win32/win32k/include/driver.h Fri Aug 24 16:10:10 2007
@@ -176,6 +176,7 @@
} DRIVER_FUNCTIONS, *PDRIVER_FUNCTIONS;
BOOL DRIVER_RegisterDriver(LPCWSTR Name, PGD_ENABLEDRIVER EnableDriver);
+PGD_ENABLEDRIVER DRIVER_FindExistingDDIDriver(LPCWSTR Name);
PGD_ENABLEDRIVER DRIVER_FindDDIDriver(LPCWSTR Name);
PFILE_OBJECT DRIVER_FindMPDriver(ULONG DisplayNumber);
BOOL DRIVER_BuildDDIFunctions(PDRVENABLEDATA DED,
@@ -186,3 +187,4 @@
#endif
+
Modified: trunk/reactos/subsystems/win32/win32k/misc/driver.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/mi…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/misc/driver.c (original)
+++ trunk/reactos/subsystems/win32/win32k/misc/driver.c Fri Aug 24 16:10:10 2007
@@ -75,6 +75,21 @@
GenericDriver = Driver;
return TRUE;
+}
+
+PGD_ENABLEDRIVER DRIVER_FindExistingDDIDriver(LPCWSTR Name)
+{
+ GRAPHICS_DRIVER *Driver = DriverList;
+ while (Driver && Name)
+ {
+ if (!_wcsicmp(Driver->Name, Name))
+ {
+ return Driver->EnableDriver;
+ }
+ Driver = Driver->Next;
+ }
+
+ return NULL;
}
PGD_ENABLEDRIVER DRIVER_FindDDIDriver(LPCWSTR Name)
Modified: trunk/reactos/subsystems/win32/win32k/objects/dc.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/ob…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/objects/dc.c (original)
+++ trunk/reactos/subsystems/win32/win32k/objects/dc.c Fri Aug 24 16:10:10 2007
@@ -600,6 +600,12 @@
DPRINT1("Perhaps DDI driver doesn't match miniport
driver?\n");
continue;
}
+
+ // Update the primary surface with what we really got
+ PrimarySurface.DMW.dmPelsWidth = PrimarySurface.GDIInfo.ulHorzRes;
+ PrimarySurface.DMW.dmPelsHeight = PrimarySurface.GDIInfo.ulVertRes;
+ PrimarySurface.DMW.dmBitsPerPel = PrimarySurface.GDIInfo.cBitsPixel;
+ PrimarySurface.DMW.dmDisplayFrequency = PrimarySurface.GDIInfo.ulVRefresh;
}
if (0 == PrimarySurface.GDIInfo.ulLogPixelsX)
@@ -2640,6 +2646,68 @@
#define SIZEOF_DEVMODEW_400 212
#define SIZEOF_DEVMODEW_500 220
+static NTSTATUS FASTCALL
+GetDisplayNumberFromDeviceName(
+ IN PUNICODE_STRING pDeviceName OPTIONAL,
+ OUT ULONG *DisplayNumber)
+{
+ UNICODE_STRING DisplayString = RTL_CONSTANT_STRING(L"\\\\.\\DISPLAY");
+ NTSTATUS Status = STATUS_SUCCESS;
+ ULONG Length;
+ ULONG Number;
+ ULONG i;
+
+ if (DisplayNumber == NULL)
+ return STATUS_INVALID_PARAMETER_2;
+
+ if (pDeviceName && pDeviceName->Length <= DisplayString.Length)
+ return STATUS_OBJECT_NAME_INVALID;
+
+ if (pDeviceName == NULL || pDeviceName->Length == 0)
+ {
+ PWINDOW_OBJECT DesktopObject;
+ HDC DesktopHDC;
+ PDC pDC;
+
+ DesktopObject = UserGetDesktopWindow();
+ DesktopHDC = (HDC)UserGetWindowDC(DesktopObject);
+ pDC = DC_LockDc(DesktopHDC);
+
+ *DisplayNumber = ((GDIDEVICE *)pDC->GDIDevice)->DisplayNumber;
+
+ DC_UnlockDc(DesktopHDC);
+ UserReleaseDC(DesktopObject, DesktopHDC, FALSE);
+
+ return STATUS_SUCCESS;
+ }
+
+ /* Hack to check if the first parts are equal, by faking the device name length */
+ Length = pDeviceName->Length;
+ pDeviceName->Length = DisplayString.Length;
+ if (RtlEqualUnicodeString(&DisplayString, pDeviceName, FALSE) == FALSE)
+ Status = STATUS_OBJECT_NAME_INVALID;
+ pDeviceName->Length = Length;
+
+ if (NT_SUCCESS(Status))
+ {
+ /* Convert the last part of pDeviceName to a number */
+ Number = 0;
+ Length = pDeviceName->Length / sizeof(WCHAR);
+ for (i = DisplayString.Length / sizeof(WCHAR); i < Length; i++)
+ {
+ WCHAR Char = pDeviceName->Buffer[i];
+ if (Char >= L'0' && Char <= L'9')
+ Number = Number * 10 + Char - L'0';
+ else if (Char != L'\0')
+ return STATUS_OBJECT_NAME_INVALID;
+ }
+
+ *DisplayNumber = Number - 1;
+ }
+
+ return Status;
+}
+
/*! \brief Enumerate possible display settings for the given display...
*
* \todo Make thread safe!?
@@ -2655,10 +2723,17 @@
{
static DEVMODEW *CachedDevModes = NULL, *CachedDevModesEnd = NULL;
static DWORD SizeOfCachedDevModes = 0;
+ static UNICODE_STRING CachedDeviceName;
PDEVMODEW CachedMode = NULL;
DEVMODEW DevMode;
INT Size, OldSize;
- ULONG DisplayNumber = 0; /* only default display supported */
+ ULONG DisplayNumber;
+
+ if (!NT_SUCCESS(GetDisplayNumberFromDeviceName(pDeviceName, &DisplayNumber)))
+ {
+ SetLastWin32Error(STATUS_NO_SUCH_DEVICE);
+ return FALSE;
+ }
DPRINT("DevMode->dmSize = %d\n", pDevMode->dmSize);
DPRINT("DevMode->dmExtraSize = %d\n", pDevMode->dmDriverExtra);
@@ -2693,11 +2768,27 @@
}
else
{
- if (iModeNum == 0 || CachedDevModes == NULL) /* query modes from drivers */
+ BOOL IsCachedDevice = (CachedDevModes != NULL);
+
+ if (CachedDevModes &&
+ ((pDeviceName == NULL && CachedDeviceName.Length > 0) ||
+ (pDeviceName != NULL && pDeviceName->Buffer != NULL &&
CachedDeviceName.Length == 0) ||
+ (pDeviceName != NULL && pDeviceName->Buffer != NULL &&
CachedDeviceName.Length > 0 && RtlEqualUnicodeString(pDeviceName,
&CachedDeviceName, TRUE) == FALSE)))
+ {
+ IsCachedDevice = FALSE;
+ }
+
+ if (iModeNum == 0 || IsCachedDevice == FALSE) /* query modes from drivers */
{
UNICODE_STRING DriverFileNames;
LPWSTR CurrentName;
DRVENABLEDATA DrvEnableData;
+
+ /* Free resources from last driver cache */
+ if (IsCachedDevice == FALSE && CachedDeviceName.Buffer != NULL)
+ {
+ RtlFreeUnicodeString(&CachedDeviceName);
+ }
/* Retrieve DDI driver names from registry */
RtlInitUnicodeString(&DriverFileNames, NULL);
@@ -2719,9 +2810,12 @@
{
INT i;
PGD_ENABLEDRIVER GDEnableDriver;
+ PGD_GETMODES GetModes = NULL;
+ INT SizeNeeded, SizeUsed;
/* Get the DDI driver's entry point */
- GDEnableDriver = DRIVER_FindDDIDriver(CurrentName);
+ //GDEnableDriver = DRIVER_FindDDIDriver(CurrentName);
+ GDEnableDriver = DRIVER_FindExistingDDIDriver(L"DISPLAY");
if (NULL == GDEnableDriver)
{
DPRINT("FindDDIDriver failed for %S\n", CurrentName);
@@ -2743,61 +2837,80 @@
for (i = 0; i < DrvEnableData.c; i++)
{
PDRVFN DrvFn = DrvEnableData.pdrvfn + i;
- PGD_GETMODES GetModes;
- INT SizeNeeded, SizeUsed;
-
- if (DrvFn->iFunc != INDEX_DrvGetModes)
- continue;
-
- GetModes = (PGD_GETMODES)DrvFn->pfn;
-
- /* make sure we have enough memory to hold the modes */
- SizeNeeded =
GetModes((HANDLE)(PrimarySurface.VideoFileObject->DeviceObject), 0, NULL);
- if (SizeNeeded <= 0)
+
+ if (DrvFn->iFunc == INDEX_DrvGetModes)
{
- DPRINT("DrvGetModes failed for %S\n", CurrentName);
+ GetModes = (PGD_GETMODES)DrvFn->pfn;
break;
}
-
- SizeUsed = CachedDevModesEnd - CachedDevModes;
- if (SizeOfCachedDevModes - SizeUsed < SizeNeeded)
+ }
+
+ if (GetModes == NULL)
+ {
+ DPRINT("DrvGetModes doesn't exist for %S\n", CurrentName);
+ continue;
+ }
+
+ /* make sure we have enough memory to hold the modes */
+ SizeNeeded = GetModes((HANDLE)(PrimarySurface.VideoFileObject->DeviceObject),
0, NULL);
+ if (SizeNeeded <= 0)
+ {
+ DPRINT("DrvGetModes failed for %S\n", CurrentName);
+ break;
+ }
+
+ SizeUsed = (PCHAR)CachedDevModesEnd - (PCHAR)CachedDevModes;
+ if (SizeOfCachedDevModes < SizeUsed + SizeNeeded)
+ {
+ PVOID NewBuffer;
+
+ SizeOfCachedDevModes += SizeNeeded;
+ NewBuffer = ExAllocatePool(PagedPool, SizeOfCachedDevModes);
+ if (NewBuffer == NULL)
{
- PVOID NewBuffer;
-
- SizeOfCachedDevModes += SizeNeeded;
- NewBuffer = ExAllocatePool(PagedPool, SizeOfCachedDevModes);
- if (NewBuffer == NULL)
- {
- /* clean up */
- ExFreePool(CachedDevModes);
- SizeOfCachedDevModes = 0;
- CachedDevModes = NULL;
- CachedDevModesEnd = NULL;
- SetLastWin32Error(STATUS_NO_MEMORY);
- return FALSE;
- }
- if (CachedDevModes != NULL)
- {
- RtlCopyMemory(NewBuffer, CachedDevModes, SizeUsed);
- ExFreePool(CachedDevModes);
- }
- CachedDevModes = NewBuffer;
- CachedDevModesEnd = (DEVMODEW *)((PCHAR)NewBuffer + SizeUsed);
+ /* clean up */
+ ExFreePool(CachedDevModes);
+ CachedDevModes = NULL;
+ CachedDevModesEnd = NULL;
+ SizeOfCachedDevModes = 0;
+
+ if (CachedDeviceName.Buffer != NULL)
+ RtlFreeUnicodeString(&CachedDeviceName);
+
+ SetLastWin32Error(STATUS_NO_MEMORY);
+ return FALSE;
}
-
- /* query modes */
- SizeNeeded =
GetModes((HANDLE)(PrimarySurface.VideoFileObject->DeviceObject),
- SizeOfCachedDevModes - SizeUsed,
- CachedDevModesEnd);
- if (SizeNeeded <= 0)
+ if (CachedDevModes != NULL)
{
- DPRINT("DrvGetModes failed for %S\n", CurrentName);
+ RtlCopyMemory(NewBuffer, CachedDevModes, SizeUsed);
+ ExFreePool(CachedDevModes);
}
- else
- {
- CachedDevModesEnd = (DEVMODEW *)((PCHAR)CachedDevModesEnd + SizeNeeded);
- }
- break;
+ CachedDevModes = NewBuffer;
+ CachedDevModesEnd = (DEVMODEW *)((PCHAR)NewBuffer + SizeUsed);
+ }
+
+ if (!IsCachedDevice)
+ {
+ if (CachedDeviceName.Buffer != NULL)
+ RtlFreeUnicodeString(&CachedDeviceName);
+
+ if (pDeviceName)
+ IntSafeCopyUnicodeString(&CachedDeviceName, pDeviceName);
+
+ IsCachedDevice = TRUE;
+ }
+
+ /* query modes */
+ SizeNeeded = GetModes((HANDLE)(PrimarySurface.VideoFileObject->DeviceObject),
+ SizeNeeded,
+ CachedDevModesEnd);
+ if (SizeNeeded <= 0)
+ {
+ DPRINT("DrvGetModes failed for %S\n", CurrentName);
+ }
+ else
+ {
+ CachedDevModesEnd = (DEVMODEW *)((PCHAR)CachedDevModesEnd + SizeNeeded);
}
}
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