https://git.reactos.org/?p=reactos.git;a=commitdiff;h=e9b5b22a8c308483d0c883a2d40189df433bacad
commit e9b5b22a8c308483d0c883a2d40189df433bacad Author: Hervé Poussineau <[email protected]> AuthorDate: Wed Jun 23 08:54:27 2021 +0200 Commit: Hervé Poussineau <[email protected]> CommitDate: Sat Jul 10 16:27:44 2021 +0200 [VIDEOPRT] Implement VideoPortCreateSecondaryDisplay --- win32ss/drivers/videoprt/videoprt.c | 40 +++++++++++++++++++++++++++++++++++-- 1 file changed, 38 insertions(+), 2 deletions(-) diff --git a/win32ss/drivers/videoprt/videoprt.c b/win32ss/drivers/videoprt/videoprt.c index c8decdcc95d..e36e0ce6c7c 100644 --- a/win32ss/drivers/videoprt/videoprt.c +++ b/win32ss/drivers/videoprt/videoprt.c @@ -1350,8 +1350,44 @@ VideoPortCreateSecondaryDisplay( IN OUT PVOID *SecondaryDeviceExtension, IN ULONG Flag) { - UNIMPLEMENTED; - return ERROR_DEV_NOT_EXIST; + PDEVICE_OBJECT DeviceObject; + PVIDEO_PORT_DEVICE_EXTENSION FirstDeviceExtension, DeviceExtension; + NTSTATUS Status; + + ASSERT(SecondaryDeviceExtension); + + if (Flag != 0) + { + UNIMPLEMENTED; + } + + FirstDeviceExtension = VIDEO_PORT_GET_DEVICE_EXTENSION(HwDeviceExtension); + + if (FirstDeviceExtension->DisplayNumber != 0) + { + DPRINT1("Calling VideoPortCreateSecondaryDisplay for InstanceId %lu\n", + FirstDeviceExtension->DisplayNumber); + } + + Status = IntVideoPortCreateAdapterDeviceObject(FirstDeviceExtension->DriverObject, + FirstDeviceExtension->DriverExtension, + FirstDeviceExtension->PhysicalDeviceObject, + FirstDeviceExtension->AdapterNumber, + FirstDeviceExtension->NumberOfSecondaryDisplays + 1, + &DeviceObject); + if (!NT_SUCCESS(Status)) + { + DPRINT1("IntVideoPortCreateAdapterDeviceObject() failed with status 0x%08x\n", Status); + return ERROR_DEV_NOT_EXIST; + } + + DeviceExtension = DeviceObject->DeviceExtension; + + /* Increment secondary display count */ + FirstDeviceExtension->NumberOfSecondaryDisplays++; + + *SecondaryDeviceExtension = DeviceExtension->MiniPortDeviceExtension; + return NO_ERROR; } /*
