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/**************************************************************************
A/V Stream Camera Sample
Copyright (c) 2014, Microsoft Corporation.
File:
AvsCamera.cpp
Abstract:
Sample Camera driver initialization.
History:
created 5/15/2014
**************************************************************************/
#include "Common.h"
PVOID operator new
(
size_t iSize,
_When_((poolType & NonPagedPoolMustSucceed) != 0,
__drv_reportError("Must succeed pool allocations are forbidden. "
"Allocation failures cause a system crash"))
POOL_TYPE poolType
)
{
return ExAllocatePoolZero(poolType,iSize,'wNCK');
}
PVOID operator new
(
size_t iSize,
_When_((poolType & NonPagedPoolMustSucceed) != 0,
__drv_reportError("Must succeed pool allocations are forbidden. "
"Allocation failures cause a system crash"))
POOL_TYPE poolType,
ULONG tag
)
{
return ExAllocatePoolZero(poolType,iSize,tag);
}
PVOID
operator new[](
size_t iSize,
_When_((poolType & NonPagedPoolMustSucceed) != 0,
__drv_reportError("Must succeed pool allocations are forbidden. "
"Allocation failures cause a system crash"))
POOL_TYPE poolType,
ULONG tag
)
{
return ExAllocatePoolZero(poolType, iSize, tag);
}
/*++
Routine Description:
Array delete() operator.
Arguments:
pVoid -
The memory to free.
Return Value:
None
--*/
void
__cdecl
operator delete[](
PVOID pVoid
)
{
if (pVoid)
{
ExFreePool(pVoid);
}
}
/*++
Routine Description:
Sized delete() operator.
Arguments:
pVoid -
The memory to free.
size -
The size of the memory to free.
Return Value:
None
--*/
void __cdecl operator delete
(
void *pVoid,
size_t /*size*/
)
{
if (pVoid)
{
ExFreePool(pVoid);
}
}
/*++
Routine Description:
Sized delete[]() operator.
Arguments:
pVoid -
The memory to free.
size -
The size of the memory to free.
Return Value:
None
--*/
void __cdecl operator delete[]
(
void *pVoid,
size_t /*size*/
)
{
if (pVoid)
{
ExFreePool(pVoid);
}
}
void __cdecl operator delete
(
PVOID pVoid
)
{
if (pVoid) {
ExFreePool(pVoid);
}
}
/**************************************************************************
DESCRIPTOR AND DISPATCH LAYOUT
**************************************************************************/
//
// CaptureDeviceDispatch:
//
// This is the dispatch table for the capture device. Plug and play
// notifications as well as power management notifications are dispatched
// through this table.
//
DEFINE_CAMERA_KSDEVICE_DISPATCH( AvsCameraDispatch, CAvsCameraDevice );
//
// CaptureDeviceDescriptor:
//
// This is the device descriptor for the capture device. It points to the
// dispatch table and contains a list of filter descriptors that describe
// filter-types that this device supports. Note that the filter-descriptors
// can be created dynamically and the factories created via
// KsCreateFilterFactory as well.
//
const
KSDEVICE_DESCRIPTOR
AvsCameraDeviceDescriptor =
{
&AvsCameraDispatch,
0,
NULL
};
/**************************************************************************
INITIALIZATION CODE
**************************************************************************/
extern "C" DRIVER_INITIALIZE DriverEntry;
extern "C"
NTSTATUS
DriverEntry (
_In_ PDRIVER_OBJECT DriverObject,
_In_ PUNICODE_STRING RegistryPath
)
/*++
Routine Description:
Driver entry point. Pass off control to the AVStream initialization
function (KsInitializeDriver) and return the status code from it.
Arguments:
DriverObject -
The WDM driver object for our driver
RegistryPath -
The registry path for our registry info
Return Value:
As from KsInitializeDriver
--*/
{
//
// Simply pass the device descriptor and parameters off to AVStream
// to initialize us. This will cause filter factories to be set up
// at add & start. Everything is done based on the descriptors passed
// here.
//
return
KsInitializeDriver (
DriverObject,
RegistryPath,
&AvsCameraDeviceDescriptor
);
}
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