Compute Library
 21.02
CpuReshapeKernel.cpp
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1 /*
2  * Copyright (c) 2017-2021 Arm Limited.
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25 
26 #include "arm_compute/core/Error.h"
31 #include "arm_compute/core/Types.h"
34 #include "src/core/CPP/Validate.h"
38 
39 #include <cstdint>
40 
41 /** [NEReshapeLayerKernel Kernel] **/
42 namespace arm_compute
43 {
44 namespace cpu
45 {
46 namespace kernels
47 {
48 namespace
49 {
50 Status validate_arguments(const ITensorInfo *src, const ITensorInfo *dst)
51 {
53  // Note: ARM_COMPUTE_RETURN_ERROR_ON_CPU_F16_UNSUPPORTED(src) is not needed here as this kernel doesn't use Neon FP16 instructions.
55 
57  ARM_COMPUTE_RETURN_ERROR_ON(src->tensor_shape().total_size() != dst->tensor_shape().total_size());
59 
60  return Status{};
61 }
62 
63 template <typename T>
64 inline void reshape_tensor(const Window &window, const ITensor *src, ITensor *dst)
65 {
66  const TensorShape &src_shape = src->info()->tensor_shape();
67  const TensorShape &dst_shape = dst->info()->tensor_shape();
68  Coordinates dst_coord{};
69 
70  Iterator src_it(src, window);
71 
72  execute_window_loop(window, [&](const Coordinates & id)
73  {
74  dst_coord = index2coords(dst_shape, coords2index(src_shape, id));
75  *reinterpret_cast<T *>(dst->ptr_to_element(dst_coord)) = *reinterpret_cast<T *>(src_it.ptr());
76  },
77  src_it);
78 }
79 } // namespace
80 
82 {
85 
86  // Configure kernel window
87  Window win = calculate_max_window(*src);
88 
89  // Set the destination valid region
91 
92  ICpuKernel::configure(win);
93 }
94 
96 {
98 
99  return Status{};
100 }
101 
102 void CpuReshapeKernel::run_op(ITensorPack &tensors, const Window &window, const ThreadInfo &info)
103 {
104  ARM_COMPUTE_UNUSED(info);
107 
108  const auto src = tensors.get_const_tensor(TensorType::ACL_SRC);
109  auto dst = tensors.get_tensor(TensorType::ACL_DST);
110 
111  switch(src->info()->data_type())
112  {
113  case DataType::U8:
114  case DataType::S8:
115  case DataType::QASYMM8:
117  reshape_tensor<uint8_t>(window, src, dst);
118  break;
119  case DataType::U16:
120  case DataType::S16:
121  case DataType::F16:
122  reshape_tensor<uint16_t>(window, src, dst);
123  break;
124  case DataType::U32:
125  case DataType::S32:
126  case DataType::F32:
127  reshape_tensor<uint32_t>(window, src, dst);
128  break;
129  default:
130  ARM_COMPUTE_ERROR("Unsupported data type!");
131  }
132 }
133 
134 const char *CpuReshapeKernel::name() const
135 {
136  return "CpuReshapeKernel";
137 }
138 } // namespace kernels
139 } // namespace cpu
140 } // namespace arm_compute
141 /** [NEReshapeLayerKernel Kernel] **/
Window calculate_max_window(const ValidRegion &valid_region, const Steps &steps, bool skip_border, BorderSize border_size)
const Window & window() const
The maximum window the kernel can be executed on.
Definition: IKernel.cpp:28
Coordinates index2coords(const TensorShape &shape, int index)
Convert a linear index into n-dimensional coordinates.
Definition: Helpers.inl:156
#define ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_QUANTIZATION_INFO(...)
Definition: Validate.h:610
static Status validate(const ITensorInfo *src, const ITensorInfo *dst)
Static function to check if given info will lead to a valid configuration of CpuReshapeKernel.
#define ARM_COMPUTE_ERROR(msg)
Print the given message then throw an std::runtime_error.
Definition: Error.h:352
1 channel, 1 U8 per channel
#define ARM_COMPUTE_RETURN_ON_ERROR(status)
Checks if a status contains an error and returns it.
Definition: Error.h:204
1 channel, 1 F32 per channel
Store the tensor&#39;s metadata.
Definition: ITensorInfo.h:40
#define ARM_COMPUTE_ERROR_THROW_ON(status)
Definition: Error.h:455
1 channel, 1 U16 per channel
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
SimpleTensor< float > src
Definition: DFT.cpp:155
Copyright (c) 2017-2021 Arm Limited.
virtual void set_valid_region(const ValidRegion &valid_region)=0
Set the valid region of the tensor.
1 channel, 1 F16 per channel
#define ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(...)
Definition: Validate.h:163
1 channel, 1 S32 per channel
const ITensor * get_const_tensor(int id) const
Get constant tensor of a given id.
Definition: ITensorPack.cpp:40
#define ARM_COMPUTE_UNUSED(...)
To avoid unused variables warnings.
Definition: Error.h:152
1 channel, 1 U32 per channel
virtual const TensorShape & tensor_shape() const =0
Size for each dimension of the tensor.
quantized, asymmetric fixed-point 8-bit number unsigned
const char * name() const override
Name of the kernel.
Coordinates of an item.
Definition: Coordinates.h:37
int coords2index(const TensorShape &shape, const Coordinates &coord)
Convert n-dimensional coordinates into a linear index.
Definition: Helpers.inl:175
#define ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(k)
Definition: Validate.h:941
1 channel, 1 S16 per channel
ScaleKernelInfo info(interpolation_policy, default_border_mode, PixelValue(), sampling_policy, false)
ITensor * get_tensor(int id)
Get tensor of a given id from the pac.
Definition: ITensorPack.cpp:50
Information about executing thread and CPU.
Definition: CPPTypes.h:235
void configure(const ITensorInfo *src, ITensorInfo *dst)
Configure kernel for a given list of arguments.
#define ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_DATA_TYPES(...)
Definition: Validate.h:545
Status validate_arguments(const ITensorInfo *input, const ITensorInfo *bias, const ITensorInfo *output, const GEMMLowpOutputStageInfo *output_stage)
Tensor packing service.
Definition: ITensorPack.h:37
#define ARM_COMPUTE_ERROR_ON_NULLPTR(...)
Definition: Validate.h:161
void execute_window_loop(const Window &w, L &&lambda_function, Ts &&... iterators)
Iterate through the passed window, automatically adjusting the iterators and calling the lambda_funct...
Definition: Helpers.inl:77
quantized, asymmetric fixed-point 8-bit number signed
Container for valid region of a window.
Definition: Types.h:188
void run_op(ITensorPack &tensors, const Window &window, const ThreadInfo &info) override
Execute the kernel on the passed window.
signed 8-bit number
Describe a multidimensional execution window.
Definition: Window.h:39
#define ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(f, s)
Definition: Validate.h:205