Compute Library
 21.02
CLHOGGradient.cpp
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25 
31 
32 using namespace arm_compute;
33 
34 CLHOGGradient::CLHOGGradient(std::shared_ptr<IMemoryManager> memory_manager)
35  : _memory_group(std::move(memory_manager)),
36  _derivative(),
37  _mag_phase(std::make_unique<CLMagnitudePhaseKernel>()),
38  _gx(),
39  _gy()
40 {
41 }
42 
43 void CLHOGGradient::configure(ICLTensor *input, ICLTensor *output_magnitude, ICLTensor *output_phase, PhaseType phase_type, BorderMode border_mode, uint8_t constant_border_value)
44 {
45  configure(CLKernelLibrary::get().get_compile_context(), input, output_magnitude, output_phase, phase_type, border_mode, constant_border_value);
46 }
47 
48 void CLHOGGradient::configure(const CLCompileContext &compile_context, ICLTensor *input, ICLTensor *output_magnitude, ICLTensor *output_phase, PhaseType phase_type, BorderMode border_mode,
49  uint8_t constant_border_value)
50 {
54 
55  const TensorShape &shape_img = input->info()->tensor_shape();
56 
57  // Allocate image memory
58  TensorInfo info(shape_img, Format::S16);
59  _gx.allocator()->init(info);
60  _gy.allocator()->init(info);
61 
62  // Manage intermediate buffers
63  _memory_group.manage(&_gx);
64  _memory_group.manage(&_gy);
65 
66  // Initialise derivate kernel
67  _derivative.configure(compile_context, input, &_gx, &_gy, border_mode, constant_border_value);
68 
69  // Initialise magnitude/phase kernel
70  if(PhaseType::UNSIGNED == phase_type)
71  {
72  _mag_phase->configure(compile_context, &_gx, &_gy, output_magnitude, output_phase, MagnitudeType::L2NORM, PhaseType::UNSIGNED);
73  }
74  else
75  {
76  _mag_phase->configure(compile_context, &_gx, &_gy, output_magnitude, output_phase, MagnitudeType::L2NORM, PhaseType::SIGNED);
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  CLScheduler::get().enqueue(*_mag_phase);
93 }
BorderMode
Methods available to handle borders.
Definition: Types.h:265
Shape of a tensor.
Definition: TensorShape.h:39
Angle range: [0, 180].
static CLScheduler & get()
Access the scheduler singleton.
Angle range: [0, 360].
PhaseType
Phase calculation type.
Definition: Types.h:432
void configure(ICLTensor *input, ICLTensor *output_magnitude, ICLTensor *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.
1 channel, 1 U8 per channel
static CLKernelLibrary & get()
Access the KernelLibrary singleton.
CLTensorAllocator * allocator()
Return a pointer to the tensor&#39;s allocator.
Definition: CLTensor.cpp:61
void init(const TensorInfo &input, size_t alignment=0)
Initialize a tensor based on the passed TensorInfo.
Copyright (c) 2017-2021 Arm Limited.
void manage(IMemoryManageable *obj) override
Sets a object to be managed by the given memory group.
Definition: MemoryGroup.h:79
Interface to enqueue OpenCL kernels and get/set the OpenCL CommandQueue and ICLTuner.
void run() override final
Run the kernels contained in the function.
virtual const TensorShape & tensor_shape() const =0
Size for each dimension of the tensor.
virtual ITensorInfo * info() const =0
Interface to be implemented by the child class to return the tensor&#39;s metadata.
CLHOGGradient(std::shared_ptr< IMemoryManager > memory_manager=nullptr)
Default constructor.
1 channel, 1 S16 per channel
L2 normalization type.
void enqueue(ICLKernel &kernel, bool flush=true)
Schedule the execution of the passed kernel if possible.
#define ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(t, c,...)
Definition: Validate.h:790
CLCompileContext class.
void allocate() override
Allocate size specified by TensorInfo of OpenCL memory.
void configure(ICLTensor *input, ICLTensor *output_x, ICLTensor *output_y, BorderMode border_mode, uint8_t constant_border_value=0)
Initialise the function&#39;s source, destinations and border mode.
ScaleKernelInfo info(interpolation_policy, default_border_mode, PixelValue(), sampling_policy, false)
Memory group resources scope handling class.
Definition: IMemoryGroup.h:82
Interface for OpenCL tensor.
Definition: ICLTensor.h:42
Template interface for the kernel to compute magnitude and phase.
Store the tensor&#39;s metadata.
Definition: TensorInfo.h:45
void run() override
Run the kernels contained in the function.