1/* 2 * Copyright (c) 2018-2021 Arm Limited. 3 * 4 * SPDX-License-Identifier: MIT 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to 8 * deal in the Software without restriction, including without limitation the 9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10 * sell copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in all 14 * copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 */ 24#include "helpers.h" 25 26#if defined(DATA_TYPE) && defined(VEC_SIZE) && defined(OFFSET) && defined(SCALE) 27 28#define TYPE VEC_DATA_TYPE(DATA_TYPE, VEC_SIZE) 29#define OFFSET_FLT ((float)OFFSET) 30#define SCALE_FLT ((float)SCALE) 31 32#if defined(NUM_CHANNELS) 33 34/** Apply normalize_planar_yuv layer on tensors with NCHW data layout. 35 * 36 * @note Data type should be given as a preprocessor argument using -DDATA_TYPE=type. e.g. -DDATA_TYPE=float 37 * @note Vector size should be given as a preprocessor argument using -DVEC_SIZE e.g. -DVEC_SIZE=8 38 * @note The depth of the input tensor should be given as a preprocessor argument using -DNUM_CHANNELS e.g. -DNUM_CHANNELS=8 39 * @note The quantization offset should be given as a preprocessor argument using -DOFFSET e.g. -DOFFSET=8 40 * @note The quantization scale should be given as a preprocessor argument using -DSCALE e.g. -DSCALE=8 41 * 42 * @param[in] src_ptr Pointer to the first source tensor. Supported data types: QASYMM8/QASYMM8_SIGNED 43 * @param[in] src_stride_x Stride of the first source tensor in X dimension (in bytes) 44 * @param[in] src_step_x input_stride_x * number of elements along X processed per workitem(in bytes) 45 * @param[in] src_stride_y Stride of the first source tensor in Y dimension (in bytes) 46 * @param[in] src_step_y input_stride_y * number of elements along Y processed per workitem(in bytes) 47 * @param[in] src_stride_z Stride of the first source tensor in Z dimension (in bytes) 48 * @param[in] src_step_z input_stride_z * number of elements along Z processed per workitem(in bytes) 49 * @param[in] src_offset_first_element_in_bytes The offset of the first element in the first source tensor 50 * @param[out] dst_ptr Pointer to the destination tensor. Supported data types: same as @p src_ptr 51 * @param[in] dst_stride_x Stride of the destination tensor in X dimension (in bytes) 52 * @param[in] dst_step_x output_stride_x * number of elements along X processed per workitem(in bytes) 53 * @param[in] dst_stride_y Stride of the destination tensor in Y dimension (in bytes) 54 * @param[in] dst_step_y output_stride_y * number of elements along Y processed per workitem(in bytes) 55 * @param[in] dst_stride_z Stride of the destination tensor in Z dimension (in bytes) 56 * @param[in] dst_step_z output_stride_z * number of elements along Z processed per workitem(in bytes) 57 * @param[in] dst_offset_first_element_in_bytes The offset of the first element in the destination tensor 58 * @param[in] mean_ptr Pointer to the mean source tensor. Supported data types: same as @p src_ptr 59 * @param[in] mean_stride_x Stride of the mean source tensor in X dimension (in bytes) 60 * @param[in] mean_step_x mean_stride_x * number of elements along X processed per workitem(in bytes) 61 * @param[in] mean_offset_first_element_in_bytes The offset of the first element in the mean source tensor 62 * @param[in] std_ptr Pointer to the std tensor. Supported data types: same as @p src_ptr 63 * @param[in] std_stride_x Stride of the std tensor in X dimension (in bytes) 64 * @param[in] std_step_x std_stride_x * number of elements along X processed per workitem(in bytes) 65 * @param[in] std_offset_first_element_in_bytes The offset of the first element in the var source tensor 66 */ 67__kernel void normalize_planar_yuv_layer_q8_nchw(TENSOR3D_DECLARATION(src), 68 TENSOR3D_DECLARATION(dst), 69 VECTOR_DECLARATION(mean), 70 VECTOR_DECLARATION(std)) 71{ 72 Tensor3D src = CONVERT_TO_TENSOR3D_STRUCT(src); 73 Tensor3D dst = CONVERT_TO_TENSOR3D_STRUCT(dst); 74 Vector mean = CONVERT_TO_VECTOR_STRUCT(mean); 75 Vector std = CONVERT_TO_VECTOR_STRUCT(std); 76 77 const uint current_slice = get_global_id(2) % NUM_CHANNELS; 78 79 VEC_DATA_TYPE(float, VEC_SIZE) 80 curr_mean_flt = (VEC_DATA_TYPE(float, VEC_SIZE))(*((__global DATA_TYPE *)(mean.ptr + current_slice * sizeof(DATA_TYPE)))); 81 curr_mean_flt = round(curr_mean_flt - OFFSET_FLT) * SCALE_FLT; 82 83 VEC_DATA_TYPE(float, VEC_SIZE) 84 curr_std_flt = (VEC_DATA_TYPE(float, VEC_SIZE))(*((__global DATA_TYPE *)(std.ptr + current_slice * sizeof(DATA_TYPE)))); 85 curr_std_flt = round(curr_std_flt - OFFSET_FLT) * SCALE_FLT; 86 87 VEC_DATA_TYPE(float, VEC_SIZE) 88 data_flt = CONVERT(VLOAD(VEC_SIZE)(0, (__global DATA_TYPE *)src.ptr), VEC_DATA_TYPE(float, VEC_SIZE)); 89 data_flt = round(data_flt - OFFSET_FLT) * SCALE_FLT; 90 91 // Perform normalization 92 VEC_DATA_TYPE(float, VEC_SIZE) 93 res_flt = (data_flt - curr_mean_flt) / curr_std_flt; 94 95 const TYPE res_u8 = CONVERT_SAT(round(res_flt / SCALE_FLT) + OFFSET_FLT, TYPE); 96 VSTORE(VEC_SIZE) 97 (res_u8, 0, (__global DATA_TYPE *)dst.ptr); 98} 99 100#endif // defined(NUM_CHANNELS) 101#endif // defined(DATA_TYPE) && defined(VEC_SIZE) && defined(OFFSET) && defined(SCALE)