accumulate.cl File Reference

#include "helpers.h"

Go to the source code of this file.

Functions
__kernel void	accumulate (__global uchar *input_ptr, uint input_stride_x, uint input_step_x, uint input_stride_y, uint input_step_y, uint input_offset_first_element_in_bytes, __global uchar *accu_ptr, uint accu_stride_x, uint accu_step_x, uint accu_stride_y, uint accu_step_y, uint accu_offset_first_element_in_bytes)
	This function accumulates an input image into output image. More...
__kernel void	accumulate_weighted (__global uchar *input_ptr, uint input_stride_x, uint input_step_x, uint input_stride_y, uint input_step_y, uint input_offset_first_element_in_bytes, __global uchar *accu_ptr, uint accu_stride_x, uint accu_step_x, uint accu_stride_y, uint accu_step_y, uint accu_offset_first_element_in_bytes, const float alpha)
	This function accumulates a weighted value from an input image to an output image. More...
__kernel void	accumulate_squared (__global uchar *input_ptr, uint input_stride_x, uint input_step_x, uint input_stride_y, uint input_step_y, uint input_offset_first_element_in_bytes, __global uchar *accu_ptr, uint accu_stride_x, uint accu_step_x, uint accu_stride_y, uint accu_step_y, uint accu_offset_first_element_in_bytes, const uint shift)
	This function accumulates a squared value from an input image to an output image. More...

Function Documentation

__kernel void accumulate	(	__global uchar *	input_ptr,
		uint	input_stride_x,
		uint	input_step_x,
		uint	input_stride_y,
		uint	input_step_y,
		uint	input_offset_first_element_in_bytes,
		__global uchar *	accu_ptr,
		uint	accu_stride_x,
		uint	accu_step_x,
		uint	accu_stride_y,
		uint	accu_step_y,
		uint	accu_offset_first_element_in_bytes
	)

This function accumulates an input image into output image.

Parameters

[in]	input_ptr	Pointer to the source image. Supported data types: U8
[in]	input_stride_x	Stride of the source image in X dimension (in bytes)
[in]	input_step_x	input_stride_x * number of elements along X processed per workitem(in bytes)
[in]	input_stride_y	Stride of the source image in Y dimension (in bytes)
[in]	input_step_y	input_stride_y * number of elements along Y processed per workitem(in bytes)
[in]	input_offset_first_element_in_bytes	The offset of the first element in the source image
[out]	accu_ptr	Pointer to the destination image. Supported data types: S16
[in]	accu_stride_x	Stride of the destination image in X dimension (in bytes)
[in]	accu_step_x	accu_stride_x * number of elements along X processed per workitem(in bytes)
[in]	accu_stride_y	Stride of the destination image in Y dimension (in bytes)
[in]	accu_step_y	accu_stride_y * number of elements along Y processed per workitem(in bytes)
[in]	accu_offset_first_element_in_bytes	The offset of the first element in the destination image

Definition at line 41 of file accumulate.cl.

References CONVERT_TO_IMAGE_STRUCT, and Image::ptr.

Referenced by arm_compute::calculate_matrix_scale(), Dimensions< size_t >::collapse(), arm_compute::data_type_for_convolution(), arm_compute::data_type_for_convolution_matrix(), arm_compute::test::join(), arm_compute::test::validation::reference::mean_and_standard_deviation(), arm_compute::pixel_area_c1u8_clamp(), JSONPrinter::print_measurements(), PrettyPrinter::print_measurements(), SimpleTensor< T >::size(), TensorShape::total_size(), TensorShape::total_size_lower(), and TensorShape::total_size_upper().

{
    // Get pixels pointer
    Image input = CONVERT_TO_IMAGE_STRUCT(input);
    Image accu  = CONVERT_TO_IMAGE_STRUCT(accu);

    // Load data
    uchar16 in_data   = vload16(0, input.ptr);
    short16 accu_data = vload16(0, (__global short *)accu.ptr);

    // Perform accumulation
    short16 res = add_sat(convert_short16(in_data), accu_data);

    // Store result
    vstore16(res, 0, (__global short *)accu.ptr);
}

__kernel void accumulate_squared	(	__global uchar *	input_ptr,
		uint	input_stride_x,
		uint	input_step_x,
		uint	input_stride_y,
		uint	input_step_y,
		uint	input_offset_first_element_in_bytes,
		__global uchar *	accu_ptr,
		uint	accu_stride_x,
		uint	accu_step_x,
		uint	accu_stride_y,
		uint	accu_step_y,
		uint	accu_offset_first_element_in_bytes,
		const uint	shift
	)

This function accumulates a squared value from an input image to an output image.

Parameters

[in]	input_ptr	Pointer to the source image. Supported data types: U8
[in]	input_stride_x	Stride of the source image in X dimension (in bytes)
[in]	input_step_x	input_stride_x * number of elements along X processed per workitem(in bytes)
[in]	input_stride_y	Stride of the source image in Y dimension (in bytes)
[in]	input_step_y	input_stride_y * number of elements along Y processed per workitem(in bytes)
[in]	input_offset_first_element_in_bytes	The offset of the first element in the source image
[out]	accu_ptr	Pointer to the destination image. Supported data types: S16
[in]	accu_stride_x	Stride of the destination image in X dimension (in bytes)
[in]	accu_step_x	accu_stride_x * number of elements along X processed per workitem(in bytes)
[in]	accu_stride_y	Stride of the destination image in Y dimension (in bytes)
[in]	accu_step_y	accu_stride_y * number of elements along Y processed per workitem(in bytes)
[in]	accu_offset_first_element_in_bytes	The offset of the first element in the destination image
[in]	shift	The U32 scalar value with a value in the range of 0 to 15

Definition at line 112 of file accumulate.cl.

References CONVERT_TO_IMAGE_STRUCT, and Image::ptr.

{
    // Get pixels pointer
    Image input = CONVERT_TO_IMAGE_STRUCT(input);
    Image accu  = CONVERT_TO_IMAGE_STRUCT(accu);

    // Load data
    ushort16 in_data   = convert_ushort16(vload16(0, input.ptr));
    uint16   accu_data = convert_uint16(vload16(0, (__global short *)accu.ptr));

    // Calculate squared accumulation
    short16 res = convert_short16_sat(accu_data + convert_uint16((in_data * in_data) >> shift));

    // Store result
    vstore16(res, 0, (__global short *)accu.ptr);
}

__kernel void accumulate_weighted	(	__global uchar *	input_ptr,
		uint	input_stride_x,
		uint	input_step_x,
		uint	input_stride_y,
		uint	input_step_y,
		uint	input_offset_first_element_in_bytes,
		__global uchar *	accu_ptr,
		uint	accu_stride_x,
		uint	accu_step_x,
		uint	accu_stride_y,
		uint	accu_step_y,
		uint	accu_offset_first_element_in_bytes,
		const float	alpha
	)

This function accumulates a weighted value from an input image to an output image.

Parameters

[in]	input_ptr	Pointer to the source image. Supported data types: U8
[in]	input_stride_x	Stride of the source image in X dimension (in bytes)
[in]	input_step_x	input_stride_x * number of elements along X processed per workitem(in bytes)
[in]	input_stride_y	Stride of the source image in Y dimension (in bytes)
[in]	input_step_y	input_stride_y * number of elements along Y processed per workitem(in bytes)
[in]	input_offset_first_element_in_bytes	The offset of the first element in the source image
[out]	accu_ptr	Pointer to the destination image. Supported data types: S16
[in]	accu_stride_x	Stride of the destination image in X dimension (in bytes)
[in]	accu_step_x	accu_stride_x * number of elements along X processed per workitem(in bytes)
[in]	accu_stride_y	Stride of the destination image in Y dimension (in bytes)
[in]	accu_step_y	accu_stride_y * number of elements along Y processed per workitem(in bytes)
[in]	accu_offset_first_element_in_bytes	The offset of the first element in the destination image
[in]	alpha	The float scalar value with a value in the range of 0 to 1

Definition at line 76 of file accumulate.cl.

References CONVERT_TO_IMAGE_STRUCT, and Image::ptr.

{
    // Get pixels pointer
    Image input = CONVERT_TO_IMAGE_STRUCT(input);
    Image accu  = CONVERT_TO_IMAGE_STRUCT(accu);

    // Load data
    const float16 in_data   = convert_float16(vload16(0, input.ptr));
    const float16 accu_data = convert_float16(vload16(0, accu.ptr));

    // Calculate weighted accumulation
    const uchar16 res = convert_uchar16((1.0f - alpha) * accu_data + alpha * in_data);

    // Store result
    vstore16(res, 0, accu.ptr);
}