aboutsummaryrefslogtreecommitdiff
path: root/src/runtime/CL/functions/CLSplit.cpp
blob: f0843517e7c2ffc2ab9168722c1ce9c65edc3e92 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
/*
 * Copyright (c) 2018 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.
 */
#include "arm_compute/runtime/CL/functions/CLSplit.h"

#include "arm_compute/core/CL/ICLTensor.h"
#include "arm_compute/core/Error.h"
#include "arm_compute/core/Helpers.h"
#include "arm_compute/core/TensorInfo.h"
#include "arm_compute/core/Types.h"
#include "arm_compute/core/utils/misc/ShapeCalculator.h"
#include "arm_compute/runtime/CL/CLScheduler.h"
#include "support/ToolchainSupport.h"

namespace arm_compute
{
CLSplit::CLSplit()
    : _outputs_vector(), _slice_functions(), _num_outputs(0)
{
}

void CLSplit::configure(const ICLTensor *input, const std::vector<ICLTensor *> &outputs, unsigned int axis)
{
    // Create Slice functions
    _num_outputs     = outputs.size();
    _slice_functions = arm_compute::support::cpp14::make_unique<CLSlice[]>(_num_outputs);

    // Get output shape
    const TensorShape output_shape = arm_compute::misc::shape_calculator::compute_split_shape(input->info(), axis, _num_outputs);

    // Extract output tensor info
    std::vector<ITensorInfo *> outputs_info;
    for(auto &output : outputs)
    {
        ARM_COMPUTE_ERROR_ON_NULLPTR(output);
        outputs_info.emplace_back(output->info());
    }

    // Validate
    ARM_COMPUTE_ERROR_THROW_ON(CLSplit::validate(input->info(), outputs_info, axis));

    const size_t axis_split_step = output_shape[axis];
    unsigned int axis_offset     = 0;

    // Start/End coordinates
    Coordinates start_coords;
    Coordinates end_coords;
    for(unsigned int d = 0; d < output_shape.num_dimensions(); ++d)
    {
        end_coords.set(d, -1);
    }

    for(unsigned int i = 0; i < _num_outputs; i++)
    {
        // Update coordinate on axis
        start_coords.set(axis, axis_offset);
        end_coords.set(axis, axis_offset + axis_split_step);

        // Configure slice function
        _slice_functions[i].configure(input, outputs[i], start_coords, end_coords);

        // Set valid region from shape
        outputs[i]->info()->set_valid_region(ValidRegion(Coordinates(), output_shape));

        // Update axis offset
        axis_offset += axis_split_step;
    }
}

Status CLSplit::validate(const ITensorInfo *input, const std::vector<ITensorInfo *> &outputs, unsigned int axis)
{
    ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(input);
    ARM_COMPUTE_RETURN_ERROR_ON(axis >= input->num_dimensions());
    ARM_COMPUTE_RETURN_ERROR_ON(outputs.size() < 2);

    // Get output shape
    const TensorShape output_shape = arm_compute::misc::shape_calculator::compute_split_shape(input, axis, outputs.size());
    ARM_COMPUTE_RETURN_ERROR_ON(output_shape.total_size() == 0);

    const size_t axis_split_step = output_shape[axis];
    unsigned int axis_offset     = 0;

    // Start/End coordinates
    Coordinates start_coords;
    Coordinates end_coords;
    for(unsigned int d = 0; d < output_shape.num_dimensions(); ++d)
    {
        end_coords.set(d, -1);
    }

    // Validate output tensors
    for(const auto &output : outputs)
    {
        ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(output);

        // Output auto inizialitation if not yet initialized
        TensorInfo tmp_output_info = *output->clone();
        auto_init_if_empty(tmp_output_info, input->clone()->set_is_resizable(true).set_tensor_shape(output_shape));

        // Update coordinate on axis
        start_coords.set(axis, axis_offset);
        end_coords.set(axis, axis_offset + axis_split_step);

        ARM_COMPUTE_RETURN_ON_ERROR(CLSlice::validate(input, output, start_coords, end_coords));
        axis_offset += axis_split_step;
    }

    return Status{};
}

void CLSplit::run()
{
    cl::CommandQueue q = CLScheduler::get().queue();

    for(unsigned i = 0; i < _num_outputs; ++i)
    {
        _slice_functions[i].run();
    }
}
} // namespace arm_compute