1/* 2 * Copyright (c) 2017-2021 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(WIDTH_OUTPUT) && defined(ELEMENT_SIZE) && defined(WIDTH_INPUT) && defined(NUM_GROUPS) 27 28#if ELEMENT_SIZE == 1 29#define COND_DATA_TYPE char 30#elif ELEMENT_SIZE == 2 31#define COND_DATA_TYPE short 32#elif ELEMENT_SIZE == 4 33#define COND_DATA_TYPE int 34#else // ELEMENT_SIZE 35#error "Element size not support" 36#endif // ELEMENT_SIZE 37 38/** This kernel performs a reshaping of the output of the convolution layer 39 * 40 * @note The data type must be passed at compile time using -DDATA_TYPE: e.g. -DDATA_TYPE=float 41 * @note The width of the input tensor must be passed at compile time using -DWIDTH_INPUT: e.g. -DWIDTH_INPUT=320 42 * @note The width of the output tensor must be passed at compile time using -DWIDTH_OUTPUT: e.g. -DWIDTH_OUTPUT=600 43 * @note The element size must be passed at compile time using -DELEMENT_SIZE: e.g. -DELEMENT_SIZE=4 44 * @note The number of groups must be passed at compile time using -DNUM_GROUPS: e.g. -DNUM_GROUPS=4 45 * 46 * @param[in] src_ptr Pointer to the source tensor. Supported data types: QASYMM8/QASYMM8_SIGNED/F16/F32 47 * @param[in] src_stride_x Stride of the source tensor in X dimension (in bytes) 48 * @param[in] src_step_x src_stride_x * number of elements along X processed per workitem(in bytes) 49 * @param[in] src_stride_y Stride of the source tensor in Y dimension (in bytes) 50 * @param[in] src_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) 51 * @param[in] src_stride_z Stride of the source tensor in Z dimension (in bytes) 52 * @param[in] src_step_z src_stride_z * number of elements along Z processed per workitem(in bytes) 53 * @param[in] src_offset_first_element_in_bytes The offset of the first element in the source tensor 54 * @param[out] dst_ptr Pointer to the destination tensor. Supported data types: same as @p src_ptr 55 * @param[in] dst_stride_x Stride of the destination tensor in X dimension (in bytes) 56 * @param[in] dst_step_x dst_stride_x * number of elements along X processed per workitem(in bytes) 57 * @param[in] dst_stride_y Stride of the destination tensor in Y dimension (in bytes) 58 * @param[in] dst_step_y dst_stride_y * number of elements along Y processed per workitem(in bytes) 59 * @param[in] dst_stride_z Stride of the destination tensor in Z dimension (in bytes) 60 * @param[in] dst_step_z dst_stride_z * number of elements along Z processed per workitem(in bytes) 61 * @param[in] dst_stride_w Stride of the destination tensor in W dimension (in bytes) 62 * @param[in] dst_step_w dst_stride_w * number of elements along W processed per workitem(in bytes) 63 * @param[in] dst_offset_first_element_in_bytes The offset of the first element in the destination tensor 64 */ 65__kernel void col2im( 66 TENSOR3D_DECLARATION(src), 67 TENSOR4D_DECLARATION(dst)) 68{ 69 Tensor3D src = CONVERT_TO_TENSOR3D_STRUCT(src); 70 Tensor4D dst = CONVERT_TO_TENSOR4D_STRUCT_NO_STEP(dst, 0); 71 72 const uint xd = get_global_id(1) % WIDTH_OUTPUT; // x coordinate of the destination tensor 73 const uint yd = get_global_id(1) / WIDTH_OUTPUT; // y coordinate of the destination tensor 74 75 VEC_DATA_TYPE(DATA_TYPE, 8) 76 data = vload8(0, (__global DATA_TYPE *)src.ptr); 77 78 uint x = get_global_id(0) * 8; 79 uint8 x_clamped = x + (uint8)(0, 1, 2, 3, 4, 5, 6, 7); 80 81 VEC_DATA_TYPE(COND_DATA_TYPE, 8) 82 cond0 = CONVERT((x_clamped < WIDTH_INPUT), VEC_DATA_TYPE(COND_DATA_TYPE, 8)); 83 84 // Clamp x if out-of-bounds 85 x_clamped = select((uint8)x, x_clamped, convert_int8(cond0)); 86 87 // If out-of-bound, overwrite with the first element 88 data = select((VEC_DATA_TYPE(DATA_TYPE, 8))data.s0, data, cond0); 89 90#if NUM_GROUPS > 1 91 // Compute output offset (batches on 4th dimension) 92 int idx = yd * dst_stride_y + xd * dst_stride_x + (get_global_id(2) / NUM_GROUPS) * dst.stride_w; 93 94 const uint group = get_global_id(2) % NUM_GROUPS; // group ID 95 x_clamped += group * WIDTH_INPUT; 96#else /* defined(NUM_GROUPS > 1 ) */ 97 // Compute output offset (batches on 3rd dimension) 98 int idx = yd * dst.stride_y + xd * dst.stride_x + get_global_id(2) * dst.stride_w; 99#endif /* NUM_GROUPS > 1 */ 100 101 // Store value 102 *((__global DATA_TYPE *)(dst.ptr + idx + x_clamped.s0 * dst.stride_z)) = data.s0; 103 *((__global DATA_TYPE *)(dst.ptr + idx + x_clamped.s1 * dst.stride_z)) = data.s1; 104 *((__global DATA_TYPE *)(dst.ptr + idx + x_clamped.s2 * dst.stride_z)) = data.s2; 105 *((__global DATA_TYPE *)(dst.ptr + idx + x_clamped.s3 * dst.stride_z)) = data.s3; 106 *((__global DATA_TYPE *)(dst.ptr + idx + x_clamped.s4 * dst.stride_z)) = data.s4; 107 *((__global DATA_TYPE *)(dst.ptr + idx + x_clamped.s5 * dst.stride_z)) = data.s5; 108 *((__global DATA_TYPE *)(dst.ptr + idx + x_clamped.s6 * dst.stride_z)) = data.s6; 109 *((__global DATA_TYPE *)(dst.ptr + idx + x_clamped.s7 * dst.stride_z)) = data.s7; 110} 111#endif // defined(DATA_TYPE) && defined(WIDTH_OUTPUT) && defined(ELEMENT_SIZE) && defined(WIDTH_INPUT) && defined(NUM_GROUPS) 112