Compute Library
 21.02
NEHOGGradient.cpp
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25 
31 
32 namespace arm_compute
33 {
35 
36 NEHOGGradient::NEHOGGradient(std::shared_ptr<IMemoryManager> memory_manager) // NOLINT
37  : _memory_group(std::move(memory_manager)),
38  _derivative(),
39  _mag_phase(nullptr),
40  _gx(),
41  _gy()
42 {
43 }
44 
45 void NEHOGGradient::configure(ITensor *input, ITensor *output_magnitude, ITensor *output_phase, PhaseType phase_type, BorderMode border_mode, uint8_t constant_border_value)
46 {
50 
51  const TensorShape &shape_img = input->info()->tensor_shape();
52 
53  // Allocate image memory
54  TensorInfo info(shape_img, Format::S16);
55  _gx.allocator()->init(info);
56  _gy.allocator()->init(info);
57 
58  // Manage intermediate buffers
59  _memory_group.manage(&_gx);
60  _memory_group.manage(&_gy);
61 
62  // Initialise derivate kernel
63  _derivative.configure(input, &_gx, &_gy, border_mode, constant_border_value);
64 
65  // Initialise magnitude/phase kernel
66  if(PhaseType::UNSIGNED == phase_type)
67  {
68  auto k = std::make_unique<NEMagnitudePhaseKernel<MagnitudeType::L2NORM, PhaseType::UNSIGNED>>();
69  k->configure(&_gx, &_gy, output_magnitude, output_phase);
70  _mag_phase = std::move(k);
71  }
72  else
73  {
74  auto k = std::make_unique<NEMagnitudePhaseKernel<MagnitudeType::L2NORM, PhaseType::SIGNED>>();
75  k->configure(&_gx, &_gy, output_magnitude, output_phase);
76  _mag_phase = std::move(k);
77  }
78 
79  // Allocate intermediate tensors
80  _gx.allocator()->allocate();
81  _gy.allocator()->allocate();
82 }
83 
85 {
86  MemoryGroupResourceScope scope_mg(_memory_group);
87 
88  // Run derivative
89  _derivative.run();
90 
91  // Run magnitude/phase kernel
92  NEScheduler::get().schedule(_mag_phase.get(), Window::DimY);
93 }
94 } // namespace arm_compute
BorderMode
Methods available to handle borders.
Definition: Types.h:265
Shape of a tensor.
Definition: TensorShape.h:39
void init(const TensorAllocator &allocator, const Coordinates &coords, TensorInfo &sub_info)
Shares the same backing memory with another tensor allocator, while the tensor info might be differen...
Angle range: [0, 180].
PhaseType
Phase calculation type.
Definition: Types.h:432
void configure(ITensor *input, ITensor *output_x, ITensor *output_y, BorderMode border_mode, uint8_t constant_border_value=0)
Initialise the function&#39;s source, destinations and border mode.
1 channel, 1 U8 per channel
NEHOGGradient(std::shared_ptr< IMemoryManager > memory_manager=nullptr)
Default constructor.
Interface for Neon tensor.
Definition: ITensor.h:36
Copyright (c) 2017-2021 Arm Limited.
void run() override
Run the kernels contained in the function.
TensorAllocator * allocator()
Return a pointer to the tensor&#39;s allocator.
Definition: Tensor.cpp:48
void configure(ITensor *input, ITensor *output_magnitude, ITensor *output_phase, PhaseType phase_type, BorderMode border_mode, uint8_t constant_border_value=0)
Initialise the function&#39;s source, destinations, phase type and border mode.
void manage(IMemoryManageable *obj) override
Sets a object to be managed by the given memory group.
Definition: MemoryGroup.h:79
~NEHOGGradient()
Default destructor.
virtual const TensorShape & tensor_shape() const =0
Size for each dimension of the tensor.
void allocate() override
Allocate size specified by TensorInfo of CPU memory.
virtual ITensorInfo * info() const =0
Interface to be implemented by the child class to return the tensor&#39;s metadata.
1 channel, 1 S16 per channel
#define ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(t, c,...)
Definition: Validate.h:790
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)
Memory group resources scope handling class.
Definition: IMemoryGroup.h:82
virtual void schedule(ICPPKernel *kernel, const Hints &hints)=0
Runs the kernel in the same thread as the caller synchronously.
void run() override
Run the kernels contained in the function.
Store the tensor&#39;s metadata.
Definition: TensorInfo.h:45
static IScheduler & get()
Access the scheduler singleton.
Definition: Scheduler.cpp:94