diff options
Diffstat (limited to 'src/core/utils/helpers/tensor_transform.cpp')
| -rw-r--r-- | src/core/utils/helpers/tensor_transform.cpp | 70 |
1 files changed, 44 insertions, 26 deletions
diff --git a/src/core/utils/helpers/tensor_transform.cpp b/src/core/utils/helpers/tensor_transform.cpp index f2216995a9..212cfdabaa 100644 --- a/src/core/utils/helpers/tensor_transform.cpp +++ b/src/core/utils/helpers/tensor_transform.cpp @@ -1,5 +1,5 @@ /* - * Copyright (c) 2018-2020 Arm Limited. + * Copyright (c) 2018-2020, 2024 Arm Limited. * * SPDX-License-Identifier: MIT * @@ -36,10 +36,11 @@ int calculate_stride_on_index(int index, Coordinates strides) return index >= static_cast<int>(strides.num_dimensions()) ? 1 : strides[index]; } -int calculate_start_on_index(TensorShape input_shape, int index, Coordinates starts, Coordinates strides, int32_t begin_mask) +int calculate_start_on_index( + TensorShape input_shape, int index, Coordinates starts, Coordinates strides, int32_t begin_mask) { // Early exit - if(index >= static_cast<int>(starts.num_dimensions())) + if (index >= static_cast<int>(starts.num_dimensions())) { return 0; } @@ -51,14 +52,14 @@ int calculate_start_on_index(TensorShape input_shape, int index, Coordinates sta int start = starts[index]; // Reset in case of begin mask present - if(arm_compute::helpers::bit_ops::is_bit_set(begin_mask, index)) + if (arm_compute::helpers::bit_ops::is_bit_set(begin_mask, index)) { start = stride > 0 ? std::numeric_limits<int>::lowest() : std::numeric_limits<int>::max(); } // Account negative start points const int dim_size = input_shape[index]; - if(start < 0) + if (start < 0) { start += dim_size; } @@ -69,12 +70,16 @@ int calculate_start_on_index(TensorShape input_shape, int index, Coordinates sta return start; } -int calculate_end_on_index(TensorShape input_shape, int index, int start_on_index, - Coordinates ends, Coordinates strides, - int32_t end_mask, int32_t shrink_axis_mask) +int calculate_end_on_index(TensorShape input_shape, + int index, + int start_on_index, + Coordinates ends, + Coordinates strides, + int32_t end_mask, + int32_t shrink_axis_mask) { // Early exit - if(index >= static_cast<int>(ends.num_dimensions())) + if (index >= static_cast<int>(ends.num_dimensions())) { return input_shape[index]; } @@ -86,9 +91,9 @@ int calculate_end_on_index(TensorShape input_shape, int index, int start_on_inde int stop = ends[index]; // Shrink dimension - if(shrink_axis) + if (shrink_axis) { - if(start_on_index == std::numeric_limits<int>::max()) + if (start_on_index == std::numeric_limits<int>::max()) { stop = start_on_index; } @@ -99,33 +104,40 @@ int calculate_end_on_index(TensorShape input_shape, int index, int start_on_inde } // Reset in case of begin mask present - if(arm_compute::helpers::bit_ops::is_bit_set(end_mask, index) && !shrink_axis) + if (arm_compute::helpers::bit_ops::is_bit_set(end_mask, index) && !shrink_axis) { stop = (stride > 0) ? std::numeric_limits<int>::max() : std::numeric_limits<int>::lowest(); } // Account negative end points const int dim_size = input_shape[index]; - if(stop < 0) + if (stop < 0) { stop += dim_size; } // Final clamp - stop = (stride > 0) ? utility::clamp(stop, 0, dim_size) : utility::clamp(stop, -1, dim_size - 1); + if (stride > 0) + stop = utility::clamp(stop, 0, dim_size); + else + stop = utility::clamp(stop, -1, dim_size - 1); return stop; } std::tuple<Coordinates, Coordinates, Coordinates> calculate_strided_slice_coords(TensorShape input_shape, - Coordinates starts, Coordinates ends, Coordinates strides, - int32_t begin_mask, int32_t end_mask, int32_t shrink_axis_mask) + Coordinates starts, + Coordinates ends, + Coordinates strides, + int32_t begin_mask, + int32_t end_mask, + int32_t shrink_axis_mask) { Coordinates starts_abs{}; Coordinates ends_abs{}; Coordinates final_strides{}; - for(unsigned int i = 0; i < input_shape.num_dimensions(); ++i) + for (unsigned int i = 0; i < input_shape.num_dimensions(); ++i) { const int start_i = calculate_start_on_index(input_shape, i, starts, strides, begin_mask); starts_abs.set(i, start_i); @@ -136,13 +148,19 @@ std::tuple<Coordinates, Coordinates, Coordinates> calculate_strided_slice_coords return std::make_tuple(starts_abs, ends_abs, final_strides); } -TensorShape compute_strided_slice_output_shape(TensorShape input_shape, Coordinates starts, Coordinates ends, Coordinates strides, - int32_t begin_mask, int32_t end_mask, int32_t shrink_axis_mask, bool return_unshrinked) +TensorShape compute_strided_slice_output_shape(TensorShape input_shape, + Coordinates starts, + Coordinates ends, + Coordinates strides, + int32_t begin_mask, + int32_t end_mask, + int32_t shrink_axis_mask, + bool return_unshrinked) { unsigned int index = 0; TensorShape output_shape; - for(unsigned int i = 0; i < input_shape.num_dimensions(); ++i) + for (unsigned int i = 0; i < input_shape.num_dimensions(); ++i) { const int stride = calculate_stride_on_index(index, strides); const int start = calculate_start_on_index(input_shape, i, starts, strides, begin_mask); @@ -150,11 +168,11 @@ TensorShape compute_strided_slice_output_shape(TensorShape input_shape, Coordina const int range = end - start; const bool is_shrink = arm_compute::helpers::bit_ops::is_bit_set(shrink_axis_mask, i); - if(return_unshrinked || !is_shrink) + if (return_unshrinked || !is_shrink) { - if((range == 0) || // Zero range - (range < 0 && stride >= 0) || // Negative range with positive stride - (range > 0 && stride <= 0)) // Positive range with negative stride + if ((range == 0) || // Zero range + (range < 0 && stride >= 0) || // Negative range with positive stride + (range > 0 && stride <= 0)) // Positive range with negative stride { output_shape.set(index, 0); return output_shape; @@ -173,9 +191,9 @@ int32_t construct_slice_end_mask(Coordinates ends) { // Create end mask int32_t end_mask = 0; - for(unsigned int i = 0; i < ends.num_dimensions(); ++i) + for (unsigned int i = 0; i < ends.num_dimensions(); ++i) { - if(ends[i] < 0) + if (ends[i] < 0) { end_mask |= 1 << i; } |