blob: 695ae8a0883f1d159faa6edff809223249e7e143 (
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
|
//
// Copyright © 2017 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//
#include "RefWorkloadUtils.hpp"
#include <armnn/backends/WorkloadData.hpp>
#include <armnn/Tensor.hpp>
#include <armnn/utility/Assert.hpp>
#include "Splitter.hpp"
#include <cmath>
#include <limits>
#include "Decoders.hpp"
#include "Encoders.hpp"
namespace armnn
{
void Split(const SplitterQueueDescriptor& data,
std::vector<ITensorHandle*> inputs,
std::vector<ITensorHandle*> outputs)
{
const TensorInfo& inputInfo = GetTensorInfo(inputs[0]);
std::unique_ptr<Decoder<float>> decoderPtr =
MakeDecoder<float>(inputInfo, inputs[0]->Map());
Decoder<float>& decoder = *decoderPtr;
for (unsigned int index = 0; index < inputInfo.GetNumElements(); ++index)
{
unsigned int indices[MaxNumOfTensorDimensions] = { 0 };
unsigned int indexRemainder = index;
unsigned int dimensionStride = inputInfo.GetNumElements();
for (unsigned int i = 0; i<inputInfo.GetNumDimensions(); i++)
{
dimensionStride /= inputInfo.GetShape()[i];
indices[i] = indexRemainder / dimensionStride; // Use integer division to round down.
indexRemainder -= indices[i] * dimensionStride;
}
for (unsigned int viewIdx = 0; viewIdx < data.m_ViewOrigins.size(); ++viewIdx)
{
SplitterQueueDescriptor::ViewOrigin const& view = data.m_ViewOrigins[viewIdx];
//Split view extents are defined by the size of (the corresponding) input tensor.
const TensorInfo& outputInfo = GetTensorInfo(outputs[viewIdx]);
ARMNN_ASSERT(outputInfo.GetNumDimensions() == inputInfo.GetNumDimensions());
// Check all dimensions to see if this element is inside the given input view.
bool insideView = true;
for (unsigned int i = 0; i<outputInfo.GetNumDimensions(); i++)
{
if (indices[i] < view.m_Origin[i])
{
insideView = false;
}
if (indices[i] >= view.m_Origin[i] + outputInfo.GetShape()[i])
{
insideView = false;
}
}
if (insideView)
{
std::unique_ptr<Encoder<float>> encoderPtr =
MakeEncoder<float>(outputInfo, outputs[viewIdx]->Map());
Encoder<float>& encoder = *encoderPtr;
unsigned int outIndex = 0;
unsigned int dimensionStride = 1;
float inputValue = 0.f;
for (unsigned int i = outputInfo.GetNumDimensions(); i-- > 0;)
{
outIndex += dimensionStride * (indices[i] - view.m_Origin[i]);
dimensionStride *= outputInfo.GetShape()[i];
}
decoder += index;
inputValue = decoder.Get();
decoder -= index;
encoder += outIndex;
encoder.Set(inputValue);
break;
}
}
}
}
}
|
