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Diffstat (limited to 'src/core/CL/cl_kernels/minmaxloc.cl')
| -rw-r--r-- | src/core/CL/cl_kernels/minmaxloc.cl | 193 |
1 files changed, 0 insertions, 193 deletions
diff --git a/src/core/CL/cl_kernels/minmaxloc.cl b/src/core/CL/cl_kernels/minmaxloc.cl deleted file mode 100644 index 1045f22fb1..0000000000 --- a/src/core/CL/cl_kernels/minmaxloc.cl +++ /dev/null @@ -1,193 +0,0 @@ -/* - * Copyright (c) 2017 Arm Limited. - * - * SPDX-License-Identifier: MIT - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to - * deal in the Software without restriction, including without limitation the - * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or - * sell copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ -#include "helpers.h" -#include "types.h" - -#ifndef DATA_TYPE_MIN -#define DATA_TYPE_MIN 0x0 -#endif /* DATA_TYPE_MIN */ - -#ifndef DATA_TYPE_MAX -#define DATA_TYPE_MAX 0xFF -#endif /* DATA_TYPE_MAX */ - -inline int FloatFlip(float val) -{ - union - { - int int_val; - float flt_val; - } u_val; - u_val.flt_val = val; - return (u_val.int_val >= 0) ? u_val.int_val : u_val.int_val ^ 0x7FFFFFFF; -} - -__constant VEC_DATA_TYPE(DATA_TYPE, 16) type_min = (VEC_DATA_TYPE(DATA_TYPE, 16))(DATA_TYPE_MIN); -__constant VEC_DATA_TYPE(DATA_TYPE, 16) type_max = (VEC_DATA_TYPE(DATA_TYPE, 16))(DATA_TYPE_MAX); -__constant int16 idx16 = (int16)(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15); - -/** This function identifies the min and maximum value of an input image. - * - * @note Input image data type must be passed as a preprocessor argument using -DDATA_TYPE. - * Moreover, the minimum and maximum value of the given data type must be provided using -DDATA_TYPE_MIN and -DDATA_TYPE_MAX respectively. - * @note In case image width is not a multiple of 16 then -DNON_MULTIPLE_OF_16 must be passed. - * - * @param[in] src_ptr Pointer to the source image. Supported data types: U8 - * @param[in] src_stride_x Stride of the source image in X dimension (in bytes) - * @param[in] src_step_x src_stride_x * number of elements along X processed per workitem(in bytes) - * @param[in] src_stride_y Stride of the source image in Y dimension (in bytes) - * @param[in] src_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) - * @param[in] src_offset_first_element_in_bytes The offset of the first element in the source image - * @param[out] min_max Pointer to buffer with minimum value in position 0 and maximum value in position 1 - * @param[in] width Input image width - */ -__kernel void minmax( - IMAGE_DECLARATION(src), - __global int *min_max, - int width) -{ - Image src = CONVERT_TO_IMAGE_STRUCT(src); - - // Initialize local minimum and local maximum - VEC_DATA_TYPE(DATA_TYPE, 16) - local_min = type_max; - VEC_DATA_TYPE(DATA_TYPE, 16) - local_max = type_min; - - // Calculate min/max of row - int i = 0; - for(; i + 16 <= width; i += 16) - { - VEC_DATA_TYPE(DATA_TYPE, 16) - data = vload16(0, (__global DATA_TYPE *)offset(&src, i, 0)); - local_min = min(data, local_min); - local_max = max(data, local_max); - } - -#ifdef NON_MULTIPLE_OF_16 - // Handle non multiple of 16 - VEC_DATA_TYPE(DATA_TYPE, 16) - data = vload16(0, (__global DATA_TYPE *)offset(&src, i, 0)); -#ifdef IS_DATA_TYPE_FLOAT - int16 valid_indices = (i + idx16) < width; -#else /* IS_DATA_TYPE_FLOAT */ - VEC_DATA_TYPE(DATA_TYPE, 16) - valid_indices = CONVERT((i + idx16) < width, VEC_DATA_TYPE(DATA_TYPE, 16)); -#endif /* IS_DATA_TYPE_FLOAT */ - local_max = max(local_max, select(type_min, data, valid_indices)); - local_min = min(local_min, select(type_max, data, valid_indices)); -#endif /* NON_MULTIPLE_OF_16 */ - - // Perform min/max reduction - local_min.s01234567 = min(local_min.s01234567, local_min.s89ABCDEF); - local_max.s01234567 = max(local_max.s01234567, local_max.s89ABCDEF); - - local_min.s0123 = min(local_min.s0123, local_min.s4567); - local_max.s0123 = max(local_max.s0123, local_max.s4567); - - local_min.s01 = min(local_min.s01, local_min.s23); - local_max.s01 = max(local_max.s01, local_max.s23); - - local_min.s0 = min(local_min.s0, local_min.s1); - local_max.s0 = max(local_max.s0, local_max.s1); - - // Update global min/max -#ifdef IS_DATA_TYPE_FLOAT - atomic_min(&min_max[0], FloatFlip(local_min.s0)); - atomic_max(&min_max[1], FloatFlip(local_max.s0)); -#else /* IS_DATA_TYPE_FLOAT */ - atomic_min(&min_max[0], local_min.s0); - atomic_max(&min_max[1], local_max.s0); -#endif /* IS_DATA_TYPE_FLOAT */ -} - -/** This function counts the min and max occurrences in an image and tags their position. - * - * @note -DCOUNT_MIN_MAX should be specified if we want to count the occurrences of the minimum and maximum values. - * @note -DLOCATE_MIN and/or -DLOCATE_MAX should be specified if we want to store the position of each occurrence on the given array. - * - * @param[in] src_ptr Pointer to the source image. Supported data types: U8 - * @param[in] src_stride_x Stride of the source image in X dimension (in bytes) - * @param[in] src_step_x src_stride_x * number of elements along X processed per workitem(in bytes) - * @param[in] src_stride_y Stride of the source image in Y dimension (in bytes) - * @param[in] src_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) - * @param[in] src_offset_first_element_in_bytes The offset of the first element in the source image - * @param[in] min_max Pointer to buffer with minimum value in position 0 and maximum value in position 1 - * @param[out] min_max_count Pointer to buffer with minimum value occurrences in position 0 and maximum value occurrences in position 1 - * @param[out] min_loc Array that holds the location of the minimum value occurrences - * @param[in] max_min_loc_count The maximum number of min value occurrences coordinates the array can hold - * @param[out] max_loc Array that holds the location of the maximum value occurrences - * @param[in] max_max_loc_count The maximum number of max value occurrences coordinates the array can hold - */ -__kernel void minmaxloc( - IMAGE_DECLARATION(src), - __global int *min_max, - __global uint *min_max_count -#ifdef LOCATE_MIN - , - __global Coordinates2D *min_loc, uint max_min_loc_count -#endif /* LOCATE_MIN */ -#ifdef LOCATE_MAX - , - __global Coordinates2D *max_loc, uint max_max_loc_count -#endif /* LOCATE_MAX */ -) -{ - Image src = CONVERT_TO_IMAGE_STRUCT(src); - -#ifdef IS_DATA_TYPE_FLOAT - __global float *min_max_ptr = (__global float *)min_max; - float min_value = min_max_ptr[0]; - float max_value = min_max_ptr[1]; -#else /* IS_DATA_TYPE_FLOAT */ - int min_value = min_max[0]; - int max_value = min_max[1]; -#endif /* IS_DATA_TYPE_FLOAT */ - - DATA_TYPE value = *((__global DATA_TYPE *)src.ptr); -#ifdef COUNT_MIN_MAX - if(value == min_value) - { - uint idx = atomic_inc(&min_max_count[0]); -#ifdef LOCATE_MIN - if(idx < max_min_loc_count) - { - min_loc[idx].x = get_global_id(0); - min_loc[idx].y = get_global_id(1); - } -#endif /* LOCATE_MIN */ - } - if(value == max_value) - { - uint idx = atomic_inc(&min_max_count[1]); -#ifdef LOCATE_MAX - if(idx < max_max_loc_count) - { - max_loc[idx].x = get_global_id(0); - max_loc[idx].y = get_global_id(1); - } -#endif /* LOCATE_MAX */ - } -#endif /* COUNT_MIN_MAX */ -} |