CUDA

CUDA utilities and image processing kernels. More...

Modules
	cudaFont
	TTF font rasterization and image overlay rendering using CUDA.
	Color Conversion
	Colorspace conversion functions for various YUV formats, RGB, BGR, ect.
	Warping
	Various image warps and matrix transforms.

Macros
#define	CUDA(x)   cudaCheckError((x), #x, __FILE__, __LINE__)
	Execute a CUDA call and print out any errors. More...
#define	CUDA_SUCCESS(x)   (CUDA(x) == cudaSuccess)
	Evaluates to true on success. More...
#define	CUDA_FAILED(x)   (CUDA(x) != cudaSuccess)
	Evaluates to true on failure. More...
#define	CUDA_VERIFY(x)   if(CUDA_FAILED(x)) return false;
	Return from the boolean function if CUDA call fails. More...
#define	LOG_CUDA   "[cuda] "
	LOG_CUDA string. More...

Functions
bool	cudaAllocMapped (void **cpuPtr, void **gpuPtr, size_t size)
	Allocate ZeroCopy mapped memory, shared between CUDA and CPU. More...
cudaError_t	cudaNormalizeRGBA (float4 *input, const float2 &input_range, float4 *output, const float2 &output_range, size_t width, size_t height)
	Rebase the pixel intensities of an image between two scales. More...
cudaError_t	cudaRectFill (float4 *input, float4 *output, uint32_t width, uint32_t height, float4 *rects, int numRects, const float4 &color)
	cudaRectFill More...
cudaError_t	cudaResize (float *input, size_t inputWidth, size_t inputHeight, float *output, size_t outputWidth, size_t outputHeight)
	Function for increasing or decreasing the size of an image on the GPU. More...
cudaError_t	cudaResizeRGBA (float4 *input, size_t inputWidth, size_t inputHeight, float4 *output, size_t outputWidth, size_t outputHeight)
	Function for increasing or decreasing the size of an image on the GPU. More...
cudaError_t	cudaCheckError (cudaError_t retval, const char *txt, const char *file, int line)
	cudaCheckError More...
__device__ __host__ int	iDivUp (int a, int b)
	If a / b has a remainder, round up. More...

Detailed Description

CUDA utilities and image processing kernels.

Macro Definition Documentation

CUDA

#define CUDA

(

x

)

cudaCheckError((x), #x, __FILE__, __LINE__)

Execute a CUDA call and print out any errors.

Returns

the original cudaError_t result

CUDA_FAILED

#define CUDA_FAILED

(

x

)

(CUDA(x) != cudaSuccess)

Evaluates to true on failure.

CUDA_SUCCESS

#define CUDA_SUCCESS

(

x

)

(CUDA(x) == cudaSuccess)

Evaluates to true on success.

CUDA_VERIFY

#define CUDA_VERIFY

(

x

)

if(CUDA_FAILED(x)) return false;

Return from the boolean function if CUDA call fails.

LOG_CUDA

#define LOG_CUDA   "[cuda] "

LOG_CUDA string.

Function Documentation

cudaAllocMapped()

bool cudaAllocMapped ( void **  cpuPtr, void **  gpuPtr, size_t  size  )

inline

Allocate ZeroCopy mapped memory, shared between CUDA and CPU.

cudaCheckError()

cudaError_t cudaCheckError ( cudaError_t  retval, const char *  txt, const char *  file, int  line  )

inline

cudaCheckError

cudaNormalizeRGBA()

cudaError_t cudaNormalizeRGBA	(	float4 *	input,
		const float2 &	input_range,
		float4 *	output,
		const float2 &	output_range,
		size_t	width,
		size_t	height
	)

Rebase the pixel intensities of an image between two scales.

For example, convert an image with values 0.0-255 to 0.0-1.0.

cudaRectFill()

cudaError_t cudaRectFill	(	float4 *	input,
		float4 *	output,
		uint32_t	width,
		uint32_t	height,
		float4 *	rects,
		int	numRects,
		const float4 &	color
	)

cudaRectFill

cudaResize()

cudaError_t cudaResize	(	float *	input,
		size_t	inputWidth,
		size_t	inputHeight,
		float *	output,
		size_t	outputWidth,
		size_t	outputHeight
	)

Function for increasing or decreasing the size of an image on the GPU.

cudaResizeRGBA()

cudaError_t cudaResizeRGBA	(	float4 *	input,
		size_t	inputWidth,
		size_t	inputHeight,
		float4 *	output,
		size_t	outputWidth,
		size_t	outputHeight
	)

Function for increasing or decreasing the size of an image on the GPU.

iDivUp()

__device__ __host__ int iDivUp ( int  a, int  b  )

inline

If a / b has a remainder, round up.