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/*
* 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.
*/
layout(local_size_x = LOCAL_SIZE_X, local_size_y = LOCAL_SIZE_Y, local_size_z = LOCAL_SIZE_Z) in;
#include "helpers_cs.h"
/** Apply cross map normalization and in map normalization
*
* @note Alpha parameter / norm_size should be given as a preprocessor argument using "#define COEFF x"
* @note BETA parameter in the normalization equation should be given as a preprocessor argument using "#define BETA x"
* @note KAPPA parameter in the normalization equation should be given as a preprocessor argument using "#define KAPPA x"
* @note Number of elements on the right or left side to normalize across should be given as a preprocessor argument using "#define RADIUS x"
*
* @param[in] src1_ptr Pointer to the first source tensor. Supported data types: F32
* @param[in] src1_attrs The attributes of the first source tensor
* @param[in] src2_ptr Pointer to the second source tensor. Supported data types: Same as @p src1_ptr
* @param[in] src2_attrs The attributes of the second source tensor
* @param[out] dst_ptr Pointer to the destination tensor. Supported data types: Same as @p src1_ptr
* @param[in] dst_attrs The attributes of the destination tensor
*/
SHADER_PARAMS_DECLARATION
{
Tensor3DAttributes src1_attrs;
Tensor3DAttributes src2_attrs;
Tensor3DAttributes dst_attrs;
};
TENSOR_DECLARATION(1, src1Buffer, float, src1_ptr, src1_shift, 2, readonly);
TENSOR_DECLARATION(2, src2Buffer, float, src2_ptr, src2_shift, 2, readonly);
TENSOR_DECLARATION(3, dstBuffer, float, dst_ptr, dst_shift, 2, writeonly);
#ifdef CROSS_MAP
void main(void)
{
Tensor3DIterator src1_iter = CONVERT_TO_TENSOR3D_ITERATOR(src1_attrs, src1_shift);
Tensor3DIterator src2_iter = CONVERT_TO_TENSOR3D_ITERATOR(src2_attrs, src2_shift);
Tensor3DIterator dst_iter = CONVERT_TO_TENSOR3D_ITERATOR(dst_attrs, dst_shift);
float acc = 0.0;
int num_of_slices = int(gl_NumWorkGroups.z * gl_WorkGroupSize.z);
int current_slice = int(gl_GlobalInvocationID.z);
int left_slice = max(current_slice - int(RADIUS), int(0));
int right_slice = min(current_slice + int(RADIUS), int(num_of_slices - 1));
for(int i = left_slice; i <= right_slice; i++)
{
acc += LOAD(src2_ptr, TENSOR3D_OFFSET(src2_iter, 0, 0, i - current_slice));
}
float normalized = pow(float(KAPPA) + float(COEFF) * acc, float(BETA));
float normalized_pixel = (LOAD_CURRENT_ITEM(src1_ptr, src1_iter)) / normalized;
STORE_CURRENT_ITEM(dst_ptr, dst_iter, normalized_pixel);
}
#elif defined(IN_MAP_1D)
void main(void)
{
Tensor3DIterator src1_iter = CONVERT_TO_TENSOR3D_ITERATOR(src1_attrs, src1_shift);
Tensor3DIterator src2_iter = CONVERT_TO_TENSOR3D_ITERATOR(src2_attrs, src2_shift);
Tensor3DIterator dst_iter = CONVERT_TO_TENSOR3D_ITERATOR(dst_attrs, dst_shift);
float acc = 0.0;
int num_of_items_x = int(gl_NumWorkGroups.x * gl_WorkGroupSize.x);
int current_pos = int(gl_GlobalInvocationID.x);
int left_pos = max(current_pos - int(RADIUS), int(0));
int right_pos = min(current_pos + int(RADIUS), int(num_of_items_x + -1));
for(int i = left_pos; i <= right_pos; i++)
{
acc += LOAD(src2_ptr, TENSOR3D_OFFSET(src2_iter, i - current_pos, 0, 0));
}
float normalized = pow(float(KAPPA) + float(COEFF) * acc, float(BETA));
float normalized_pixel = (LOAD_CURRENT_ITEM(src1_ptr, src1_iter)) / normalized;
STORE_CURRENT_ITEM(dst_ptr, dst_iter, normalized_pixel);
}
#endif /*CROSS_MAP*/
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