Compute Library
 21.02
NEStackLayer.cpp
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25 
26 #include "arm_compute/core/Error.h"
30 #include "arm_compute/core/Types.h"
34 
35 namespace arm_compute
36 {
37 NEStackLayer::~NEStackLayer() = default;
38 
40  : _input(),
41  _stack_kernels(),
42  _num_inputs(0)
43 {
44 }
45 
46 void NEStackLayer::configure(const std::vector<ITensor *> &input, int axis, ITensor *output)
47 {
48  _num_inputs = input.size();
49  _stack_kernels.resize(_num_inputs);
50 
51  // Wrap around negative values
52  const unsigned int axis_u = wrap_around(axis, static_cast<int>(input[0]->info()->num_dimensions() + 1));
53 
54  for(unsigned int i = 0; i < _num_inputs; i++)
55  {
56  _stack_kernels[i] = std::make_unique<NEStackLayerKernel>();
57  _stack_kernels[i]->configure(input[i], axis_u, i, _num_inputs, output);
58  }
59 }
60 
61 Status NEStackLayer::validate(const std::vector<ITensorInfo *> &input, int axis, const ITensorInfo *output)
62 {
64  ARM_COMPUTE_RETURN_ERROR_ON(input.empty());
65 
66  // Wrap around negative values
67  const size_t rank = input[0]->num_dimensions();
68  const unsigned int axis_u = wrap_around(axis, static_cast<int>(rank + 1));
69 
70  const unsigned int num_inputs = input.size();
71 
72  for(unsigned int i = 0; i < num_inputs; i++)
73  {
74  // All the tensors must have the same rank
75  ARM_COMPUTE_RETURN_ERROR_ON(input[i]->num_dimensions() != rank);
76  // Validate Kernel
77  ARM_COMPUTE_RETURN_ON_ERROR(NEStackLayerKernel::validate(input[i], axis_u, i, num_inputs, output));
78  }
79 
80  return Status{};
81 }
82 
84 {
85  for(unsigned i = 0; i < _num_inputs; i++)
86  {
87  NEScheduler::get().schedule(_stack_kernels[i].get(), Window::DimY);
88  }
89 }
90 } // namespace arm_compute
void configure(const std::vector< ITensor *> &input, int axis, ITensor *output)
Initialise the kernel&#39;s inputs vector and output.
#define ARM_COMPUTE_RETURN_ON_ERROR(status)
Checks if a status contains an error and returns it.
Definition: Error.h:204
~NEStackLayer()
Default destructor.
Store the tensor&#39;s metadata.
Definition: ITensorInfo.h:40
static Status validate(const std::vector< ITensorInfo *> &input, int axis, const ITensorInfo *output)
Static function to check if given info will lead to a valid configuration of NEStackLayerKernel.
Status class.
Definition: Error.h:52
#define ARM_COMPUTE_RETURN_ERROR_ON(cond)
If the condition is true, an error is returned.
Definition: Error.h:296
Interface for Neon tensor.
Definition: ITensor.h:36
void run() override
Run the kernels contained in the function.
Copyright (c) 2017-2021 Arm Limited.
#define ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(...)
Definition: Validate.h:163
T wrap_around(T x, T m)
Wrap-around a number within the range 0 <= x < m.
Definition: Helpers.h:231
static Status validate(const ITensorInfo *input, unsigned int axis, unsigned int idx_input, unsigned int num_tensors, const ITensorInfo *output)
Static function to check if given info will lead to a valid configuration of NEStackLayerKernel.
static constexpr size_t DimY
Alias for dimension 1 also known as Y dimension.
Definition: Window.h:45
ScaleKernelInfo info(interpolation_policy, default_border_mode, PixelValue(), sampling_policy, false)
virtual void schedule(ICPPKernel *kernel, const Hints &hints)=0
Runs the kernel in the same thread as the caller synchronously.
NEStackLayer()
Default constructor.
static IScheduler & get()
Access the scheduler singleton.
Definition: Scheduler.cpp:94