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+/*
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
+ * Copyright (c) 2016, 2017 ARM Limited.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "helpers.h"
+
+#if defined(DATA_TYPE) && defined(DEPTH_OUT) && defined(BATCH_IN) && defined(HEIGHT_IN) && \
+ defined(WIDTH_IN) && defined(ZERO_VALUE)
+/** Perform space to batch with input of 4D and NCHW format
+ *
+ * @attention Data type can be passed using the -DDATA_TYPE compile flag, e.g. -DDATA_TYPE=float
+ * @attention Output tensor depth should be given as a preprocessor argument using -DDEPTH_OUT=size.
+ * e.g. -DDEPTH_OUT=16
+ * @attention Input tensor batch should be given as a preprocessor argument using -DBATCH_IN=size.
+ * e.g. -DBATCH_IN=16
+ * @attention Input tensor height should be given as a preprocessor argument using -DHEIGHT_IN=size.
+ * e.g. -DHEIGHT_IN=16
+ * @attention Input tensor width should be given as a preprocessor argument using -DHEIGHT_IN=size.
+ * e.g. -DWIDTH_IN=16
+ * @attention The value to be set by pad value using -DZERO_VALUE=value. e.g. -DZERO_VALUE=0
+ *
+ * @param[in] input_ptr Pointer to the source tensor. Supported
+ * data types: U8/S8/U16/S16/F16/U32/S32/F32
+ * @param[in] input_stride_x Stride of the source tensor in X
+ * dimension (in bytes)
+ * @param[in] input_step_x input_stride_x * number of elements along
+ * X processed per workitem(in bytes)
+ * @param[in] input_stride_y Stride of the source tensor in Y
+ * dimension (in bytes)
+ * @param[in] input_step_y input_stride_y * number of elements along
+ * Y processed per workitem(in bytes)
+ * @param[in] input_stride_z Stride of the source tensor in Z
+ * dimension (in bytes)
+ * @param[in] input_step_z input_stride_z * number of elements along
+ * Z processed per workitem(in bytes)
+ * @param[in] input_stride_w Stride of the destination tensor in W
+ * dimension (in bytes)
+ * @param[in] input_step_w input_stride_w * number of elements along
+ * W processed per workitem(in bytes)
+ * @param[in] input_offset_first_element_in_bytes The offset of the first element in the
+ * source tensor
+ * @param[out] output_ptr Pointer to the destination tensor.
+ * Supported data types: same as @p
+ * input_ptr
+ * @param[in] output_stride_x Stride of the destination tensor in X
+ * dimension (in bytes)
+ * @param[in] output_step_x output_stride_x * number of elements
+ * along X processed per workitem(in bytes)
+ * @param[in] output_stride_y Stride of the destination tensor in Y
+ * dimension (in bytes)
+ * @param[in] output_step_y output_stride_y * number of elements
+ * along Y processed per workitem(in bytes)
+ * @param[in] output_stride_z Stride of the destination tensor in Z
+ * dimension (in bytes)
+ * @param[in] output_step_z output_stride_z * number of elements
+ * along Z processed per workitem(in bytes)
+ * @param[in] output_stride_w Stride of the destination tensor in W
+ * dimension (in bytes)
+ * @param[in] output_step_w output_stride_w * number of elements
+ * along W processed per workitem(in bytes)
+ * @param[in] output_offset_first_element_in_bytes The offset of the first element in the
+ * destination tensor
+ * @param[in] block_size_ptr Pointer to the source tensor. Supported
+ * data types: S32
+ * @param[in] block_size_stride_x Stride of the source tensor in X
+ * dimension (in bytes)
+ * @param[in] block_size_step_x block_size_stride_x * number of elements
+ * along X processed per workitem(in bytes)
+ * @param[in] block_size_offset_first_element_in_bytes The offset of the first element in the
+ * destination tensor
+ * @param[in] padding_size_ptr Pointer to the source tensor. Supported
+ * data types: S32
+ * @param[in] padding_size_stride_x Stride of the source tensor in X
+ * dimension (in bytes)
+ * @param[in] padding_size_step_x padding_size_stride_x * number of
+ * elements along X processed per workitem
+ * (in bytes)
+ * @param[in] padding_size_stride_y Stride of the source tensor in Y
+ * dimension (in bytes)
+ * @param[in] padding_size_step_y padding_size_stride_y * number of
+ * elements along Y processed per workitem
+ * (in bytes)
+ * @param[in] padding_size_offset_first_element_in_bytes The offset of the first element in the
+ * destination tensor
+ */
+__kernel void space_to_batch_4d_nchw(TENSOR4D_DECLARATION(input), TENSOR4D_DECLARATION(output),
+ VECTOR_DECLARATION(block_size),
+ IMAGE_DECLARATION(padding_size))
+{
+ Tensor4D in = CONVERT_TO_TENSOR4D_STRUCT(input, 0);
+ Tensor4D out = CONVERT_TO_TENSOR4D_STRUCT(output, DEPTH_OUT);
+
+ int block_size_x = *((__global int *)(block_size_ptr));
+ int block_size_y = *((__global int *)(block_size_ptr + block_size_stride_x));
+ int shift_x = (get_global_id(2) / DEPTH_OUT / BATCH_IN) % block_size_x;
+ int shift_y = (get_global_id(2) / DEPTH_OUT / BATCH_IN) / block_size_x;
+
+ int in_index[4] = {
+ 0,
+ };
+ in_index[0] = get_global_id(0) * block_size_x + shift_x - *((__global int *)(padding_size_ptr));
+ in_index[1] = get_global_id(1) * block_size_y + shift_y -
+ *((__global int *)(padding_size_ptr + padding_size_stride_y));
+ in_index[2] = get_global_id(2) % DEPTH_OUT;
+ in_index[3] = (get_global_id(2) / DEPTH_OUT) % BATCH_IN;
+
+ if (in_index[0] < 0 || in_index[0] >= WIDTH_IN || in_index[1] < 0 || in_index[1] >= HEIGHT_IN)
+ {
+ *((__global DATA_TYPE *)out.ptr) = (DATA_TYPE)ZERO_VALUE;
+ }
+ else
+ {
+ *((__global DATA_TYPE *)out.ptr) = *((__global DATA_TYPE *)tensor4D_offset(
+ &in, in_index[0], in_index[1], in_index[2], in_index[3]));
+ }
+}
+#endif // defined(DATA_TYPE) && defined(DEPTH_OUT) && defined(BATCH_IN) && defined(HEIGHT_IN) &&
+ // defined(WIDTH_IN) && defined(ZERO_VALUE)
+
+#if defined(DATA_TYPE) && defined(HEIGHT_OUT) && defined(BATCH_IN) && defined(HEIGHT_IN) && \
+ defined(WIDTH_IN) && defined(ZERO_VALUE) && defined(VEC_SIZE)
+/** Perform space to batch with input of 4D and NHWC format
+ *
+ * @attention Data type can be passed using the -DDATA_TYPE compile flag, e.g. -DDATA_TYPE=float
+ * @attention Output tensor depth should be given as a preprocessor argument using
+ * -DHEIGHT_OUT=size. e.g. -DHEIGHT_OUT=16
+ * @attention Input tensor batch should be given as a preprocessor argument using -DBATCH_IN=size.
+ * e.g. -DBATCH_IN=16
+ * @attention Input tensor height should be given as a preprocessor argument using -DHEIGHT_IN=size.
+ * e.g. -DHEIGHT_IN=16
+ * @attention Input tensor width should be given as a preprocessor argument using -DHEIGHT_IN=size.
+ * e.g. -DWIDTH_IN=16
+ * @attention The value to be set by pad value using -DZERO_VALUE=value. e.g. -DZERO_VALUE=0
+ * @attention Vector size should be given as a preprocessor argument using -DVEC_SIZE=size. e.g.
+ * -DVEC_SIZE=16
+ *
+ * @param[in] input_ptr Pointer to the source tensor. Supported
+ * data types: U8/S8/U16/S16/F16/U32/S32/F32
+ * @param[in] input_stride_x Stride of the source tensor in X
+ * dimension (in bytes)
+ * @param[in] input_step_x input_stride_x * number of elements along
+ * X processed per workitem(in bytes)
+ * @param[in] input_stride_y Stride of the source tensor in Y
+ * dimension (in bytes)
+ * @param[in] input_step_y input_stride_y * number of elements along
+ * Y processed per workitem(in bytes)
+ * @param[in] input_stride_z Stride of the source tensor in Z
+ * dimension (in bytes)
+ * @param[in] input_step_z input_stride_z * number of elements along
+ * Z processed per workitem(in bytes)
+ * @param[in] input_stride_w Stride of the destination tensor in W
+ * dimension (in bytes)
+ * @param[in] input_step_w input_stride_w * number of elements along
+ * W processed per workitem(in bytes)
+ * @param[in] input_offset_first_element_in_bytes The offset of the first element in the
+ * source tensor
+ * @param[out] output_ptr Pointer to the destination tensor.
+ * Supported data types: same as @p
+ * input_ptr
+ * @param[in] output_stride_x Stride of the destination tensor in X
+ * dimension (in bytes)
+ * @param[in] output_step_x output_stride_x * number of elements
+ * along X processed per workitem(in bytes)
+ * @param[in] output_stride_y Stride of the destination tensor in Y
+ * dimension (in bytes)
+ * @param[in] output_step_y output_stride_y * number of elements
+ * along Y processed per workitem(in bytes)
+ * @param[in] output_stride_z Stride of the destination tensor in Z
+ * dimension (in bytes)
+ * @param[in] output_step_z output_stride_z * number of elements
+ * along Z processed per workitem(in bytes)
+ * @param[in] output_stride_w Stride of the destination tensor in W
+ * dimension (in bytes)
+ * @param[in] output_step_w output_stride_w * number of elements
+ * along W processed per workitem(in bytes)
+ * @param[in] output_offset_first_element_in_bytes The offset of the first element in the
+ * destination tensor
+ * @param[in] block_size_ptr Pointer to the source tensor. Supported
+ * data types: S32
+ * @param[in] block_size_stride_x Stride of the source tensor in X
+ * dimension (in bytes)
+ * @param[in] block_size_step_x block_size_stride_x * number of elements
+ * along X processed per workitem(in bytes)
+ * @param[in] block_size_offset_first_element_in_bytes The offset of the first element in the
+ * destination tensor
+ * @param[in] padding_size_ptr Pointer to the source tensor. Supported
+ * data types: S32
+ * @param[in] padding_size_stride_x Stride of the source tensor in X
+ * dimension (in bytes)
+ * @param[in] padding_size_step_x padding_size_stride_x * number of
+ * elements along X processed per workitem
+ * (in bytes)
+ * @param[in] padding_size_stride_y Stride of the source tensor in Y
+ * dimension (in bytes)
+ * @param[in] padding_size_step_y padding_size_stride_y * number of
+ * elements along Y processed per workitem
+ * (in bytes)
+ * @param[in] padding_size_offset_first_element_in_bytes The offset of the first element in the
+ * destination tensor
+ */
+__kernel void space_to_batch_4d_nhwc(TENSOR4D_DECLARATION(input), TENSOR4D_DECLARATION(output),
+ VECTOR_DECLARATION(block_size),
+ IMAGE_DECLARATION(padding_size))
+{
+ Tensor4D in = CONVERT_TO_TENSOR4D_STRUCT(input, 0);
+ Tensor4D out = CONVERT_TO_TENSOR4D_STRUCT(output, HEIGHT_OUT);
+
+ int block_size_x = *((__global int *)(block_size_ptr));
+ int block_size_y = *((__global int *)(block_size_ptr + block_size_stride_x));
+ int shift_x = (get_global_id(2) / HEIGHT_OUT / BATCH_IN) % block_size_x;
+ int shift_y = (get_global_id(2) / HEIGHT_OUT / BATCH_IN) / block_size_x;
+
+ int in_index[4] = {
+ 0,
+ };
+ in_index[0] = get_global_id(0) * VEC_SIZE;
+ in_index[1] = get_global_id(1) * block_size_x + shift_x - *((__global int *)(padding_size_ptr));
+ in_index[2] = get_global_id(2) % HEIGHT_OUT * block_size_y + shift_y -
+ *((__global int *)(padding_size_ptr + padding_size_stride_y));
+ in_index[3] = (get_global_id(2) / HEIGHT_OUT) % BATCH_IN;
+
+ if (in_index[1] < 0 || in_index[1] >= WIDTH_IN || in_index[2] < 0 || in_index[2] >= HEIGHT_IN)
+ {
+ VSTORE(VEC_SIZE)
+ ((VEC_DATA_TYPE(DATA_TYPE, VEC_SIZE))ZERO_VALUE, 0, (__global DATA_TYPE *)out.ptr);
+ }
+ else
+ {
+ VSTORE(VEC_SIZE)
+ (CONVERT(VLOAD(VEC_SIZE)(0, (__global DATA_TYPE *)tensor4D_offset(&in, in_index[0], in_index[1],
+ in_index[2], in_index[3])),
+ VEC_DATA_TYPE(DATA_TYPE, VEC_SIZE)),
+ 0, (__global DATA_TYPE *)out.ptr);
+ }
+}
+
+#endif // defined(DATA_TYPE) && defined(HEIGHT_OUT) && defined(BATCH_IN) && defined(HEIGHT_IN) &&
+ // defined(WIDTH_IN) && defined(ZERO_VALUE) && defined(VEC_SIZE)
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