Class NPPNativeMethods.NPPi.MemAlloc

Image-Memory Allocation

ImageAllocator methods for 2D arrays of data. The allocators have width and height parameters to specify the size of the image data being allocated. They return a pointer to the newly created memory and return the numbers of bytes between successive lines.

If the memory allocation failed due to lack of free device memory or device memory fragmentation the routine returns 0.

All allocators return memory with line strides that are beneficial for performance. It is not mandatory to use these allocators. Any valid CUDA device-memory pointers can be used by the NPP primitives and there are no restrictions on line strides.

Inheritance

System.Object

NPPNativeMethods.NPPi.MemAlloc

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: ManagedCuda.NPP

Assembly: NPP.dll

Syntax

public static class MemAlloc

Methods

nppiFree(CUdeviceptr)

Free method for any 2D allocated memory.

This method should be used to free memory allocated with any of the nppiMalloc_<modifier> methods.

Declaration

public static void nppiFree(CUdeviceptr pData)

Parameters

Type	Name	Description
CUdeviceptr	pData	A pointer to memory allocated using nppiMalloc_<modifier>.

nppiMalloc_16s_C1(Int32, Int32, ref Int32)

16-bit signed image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_16s_C1(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_16s_C2(Int32, Int32, ref Int32)

2 channel 16-bit signed image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_16s_C2(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_16s_C4(Int32, Int32, ref Int32)

4 channel 16-bit signed image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_16s_C4(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_16sc_C1(Int32, Int32, ref Int32)

1 channel 16-bit signed complex image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_16sc_C1(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_16sc_C2(Int32, Int32, ref Int32)

2 channel 16-bit signed complex image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_16sc_C2(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_16sc_C3(Int32, Int32, ref Int32)

3 channel 16-bit signed complex image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_16sc_C3(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_16sc_C4(Int32, Int32, ref Int32)

4 channel 16-bit signed complex image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_16sc_C4(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_16u_C1(Int32, Int32, ref Int32)

16-bit unsigned image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_16u_C1(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_16u_C2(Int32, Int32, ref Int32)

2 channel 16-bit unsigned image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_16u_C2(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_16u_C3(Int32, Int32, ref Int32)

3 channel 16-bit unsigned image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_16u_C3(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_16u_C4(Int32, Int32, ref Int32)

4 channel 16-bit unsigned image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_16u_C4(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_32f_C1(Int32, Int32, ref Int32)

32-bit floating point image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_32f_C1(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_32f_C2(Int32, Int32, ref Int32)

2 channel 32-bit floating point image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_32f_C2(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_32f_C3(Int32, Int32, ref Int32)

3 channel 32-bit floating point image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_32f_C3(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_32f_C4(Int32, Int32, ref Int32)

4 channel 32-bit floating point image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_32f_C4(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_32fc_C1(Int32, Int32, ref Int32)

32-bit float complex image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_32fc_C1(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_32fc_C2(Int32, Int32, ref Int32)

2 channel 32-bit float complex image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_32fc_C2(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_32fc_C3(Int32, Int32, ref Int32)

3 channel 32-bit float complex image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_32fc_C3(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_32fc_C4(Int32, Int32, ref Int32)

4 channel 32-bit float complex image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_32fc_C4(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_32s_C1(Int32, Int32, ref Int32)

32-bit signed image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_32s_C1(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_32s_C3(Int32, Int32, ref Int32)

3 channel 32-bit signed image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_32s_C3(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_32s_C4(Int32, Int32, ref Int32)

4 channel 32-bit signed image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_32s_C4(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_32sc_C1(Int32, Int32, ref Int32)

32-bit integer complex image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_32sc_C1(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_32sc_C2(Int32, Int32, ref Int32)

2 channel 32-bit integer complex image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_32sc_C2(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_32sc_C3(Int32, Int32, ref Int32)

3 channel 32-bit integer complex image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_32sc_C3(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_32sc_C4(Int32, Int32, ref Int32)

4 channel 32-bit integer complex image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_32sc_C4(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_8u_C1(Int32, Int32, ref Int32)

8-bit unsigned image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_8u_C1(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_8u_C2(Int32, Int32, ref Int32)

2 channel 8-bit unsigned image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_8u_C2(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_8u_C3(Int32, Int32, ref Int32)

3 channel 8-bit unsigned image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_8u_C3(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.

nppiMalloc_8u_C4(Int32, Int32, ref Int32)

4 channel 8-bit unsigned image memory allocator.

Declaration

public static CUdeviceptr nppiMalloc_8u_C4(int nWidthPixels, int nHeightPixels, ref int pStepBytes)

Parameters

Type	Name	Description
System.Int32	nWidthPixels	Image width.
System.Int32	nHeightPixels	Image height.
System.Int32	pStepBytes	Line Step.

Returns

Type	Description
CUdeviceptr	Pointer to new image data.