Texture Intrinsics

Plugging some holes in the NVIDIA® texture fetch API, and making it less annoying to use in template code. More...

Functions
__device__ int	sp::getTexWidth (cudaTextureObject_t tex)
	Query the width of a texture object. More...
__device__ int	sp::getTexHeight (cudaTextureObject_t tex)
	Query the height of a texture object. More...
__device__ int	sp::getTexDepth (cudaTextureObject_t tex)
	Query the depth of a texture object. More...
template<>
__device__ float4	sp::tex1Dfetch (cudaTextureObject_t tex, int x)
template<>
__device__ float4	sp::tex1DOffsetfetch (cudaTextureObject_t tex, int x, int xO)
	Read from a 1D texture at an integer offset with offset addressing (API extension) More...
template<>
__device__ float4	sp::tex2Dfetch (cudaTextureObject_t tex, int x, int y)
	Read from a 2D texture using integer coordinates. (API extension) More...
template<>
__device__ float4	sp::tex2DOffsetfetch (cudaTextureObject_t tex, int x, int y, int xO, int yO)
	Read from a 2D texture using integer coordinates with offset addressing. (API extension) More...
template<>
__device__ float4	sp::tex3Dfetch (cudaTextureObject_t tex, int x, int y, int z)
	Read from a 3D texture using integer coordinates. (API extension) More...
template<>
__device__ float4	sp::tex3DOffsetfetch (cudaTextureObject_t tex, int x, int y, int z, int xO, int yO, int zO)
	Read from a 3D texture using integer coordinates. with offset addressing (API extension) More...
template<>
__device__ float4	sp::tex1D (cudaTextureObject_t tex, float x)
	Read from a 1D texture at a floating-point offset. More...
template<>
__device__ float4	sp::tex2D (cudaTextureObject_t tex, float x, float y)
	Read from a 2D texture using floating-point coordinates. More...
template<>
__device__ float4	sp::tex3D (cudaTextureObject_t tex, float x, float y, float z)
	Read from a 3D texture using floating-point coordinates. More...

Detailed Description

Plugging some holes in the NVIDIA® texture fetch API, and making it less annoying to use in template code.

The NVIDIA APIs don't expose non-interpolating accessors for 2 or 3 dimensions, among other things. This additional flexibility is needed to implement speclib's TexTensor (which, unless you're porting legacy code, is probably the only sensible way to use these functions).

Function Documentation

getTexDepth()

__device__ int sp::getTexDepth

(

cudaTextureObject_t

tex

)

Query the depth of a texture object.

getTexHeight()

__device__ int sp::getTexHeight

(

cudaTextureObject_t

tex

)

Query the height of a texture object.

getTexWidth()

__device__ int sp::getTexWidth

(

cudaTextureObject_t

tex

)

Query the width of a texture object.

tex1D()

template<>

__device__ float4 sp::tex1D	(	cudaTextureObject_t	tex,
		float	x
	)

Read from a 1D texture at a floating-point offset.

tex1Dfetch()

template<>

__device__ float4 sp::tex1Dfetch	(	cudaTextureObject_t	tex,
		int	x
	)

Read from a 1D texture at an integer offset.

tex1DOffsetfetch()

template<>

__device__ float4 sp::tex1DOffsetfetch	(	cudaTextureObject_t	tex,
		int	x,
		int	xO
	)

Read from a 1D texture at an integer offset with offset addressing (API extension)

tex2D()

template<>

__device__ float4 sp::tex2D	(	cudaTextureObject_t	tex,
		float	x,
		float	y
	)

Read from a 2D texture using floating-point coordinates.

tex2Dfetch()

template<>

__device__ float4 sp::tex2Dfetch	(	cudaTextureObject_t	tex,
		int	x,
		int	y
	)

Read from a 2D texture using integer coordinates. (API extension)

tex2DOffsetfetch()

template<>

__device__ float4 sp::tex2DOffsetfetch	(	cudaTextureObject_t	tex,
		int	x,
		int	y,
		int	xO,
		int	yO
	)

Read from a 2D texture using integer coordinates with offset addressing. (API extension)

tex3D()

template<>

__device__ float4 sp::tex3D	(	cudaTextureObject_t	tex,
		float	x,
		float	y,
		float	z
	)

Read from a 3D texture using floating-point coordinates.

tex3Dfetch()

template<>

__device__ float4 sp::tex3Dfetch	(	cudaTextureObject_t	tex,
		int	x,
		int	y,
		int	z
	)

Read from a 3D texture using integer coordinates. (API extension)

tex3DOffsetfetch()

template<>

__device__ float4 sp::tex3DOffsetfetch	(	cudaTextureObject_t	tex,
		int	x,
		int	y,
		int	z,
		int	xO,
		int	yO,
		int	zO
	)

Read from a 3D texture using integer coordinates. with offset addressing (API extension)