2 * Copyright (c) 2017 ARM Limited.
4 * SPDX-License-Identifier: MIT
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 #ifndef __ARM_COMPUTE_GRAPH_UTILS_H__
25 #define __ARM_COMPUTE_GRAPH_UTILS_H__
27 #include "arm_compute/core/PixelValue.h"
28 #include "arm_compute/graph/Graph.h"
29 #include "arm_compute/graph/ITensorAccessor.h"
30 #include "arm_compute/graph/Types.h"
40 /** PPM writer class */
41 class PPMWriter : public graph::ITensorAccessor
46 * @param[in] name PPM file name
47 * @param[in] maximum Maximum elements to access
49 PPMWriter(std::string name, unsigned int maximum = 1);
50 /** Allows instances to move constructed */
51 PPMWriter(PPMWriter &&) = default;
53 // Inherited methods overriden:
54 bool access_tensor(ITensor &tensor) override;
57 const std::string _name;
58 unsigned int _iterator;
59 unsigned int _maximum;
62 /** Dummy accessor class */
63 class DummyAccessor final : public graph::ITensorAccessor
68 * @param[in] maximum Maximum elements to write
70 DummyAccessor(unsigned int maximum = 1);
71 /** Allows instances to move constructed */
72 DummyAccessor(DummyAccessor &&) = default;
74 // Inherited methods overriden:
75 bool access_tensor(ITensor &tensor) override;
78 unsigned int _iterator;
79 unsigned int _maximum;
82 /** PPM accessor class */
83 class PPMAccessor final : public graph::ITensorAccessor
88 * @param[in] ppm_path Path to PPM file
89 * @param[in] bgr (Optional) Fill the first plane with blue channel (default = false)
90 * @param[in] mean_r (Optional) Red mean value to be subtracted from red channel
91 * @param[in] mean_g (Optional) Green mean value to be subtracted from green channel
92 * @param[in] mean_b (Optional) Blue mean value to be subtracted from blue channel
94 PPMAccessor(const std::string &ppm_path, bool bgr = true, float mean_r = 0.0f, float mean_g = 0.0f, float mean_b = 0.0f);
95 /** Allow instances of this class to be move constructed */
96 PPMAccessor(PPMAccessor &&) = default;
98 // Inherited methods overriden:
99 bool access_tensor(ITensor &tensor) override;
102 const std::string &_ppm_path;
109 /** Result accessor class */
110 class TopNPredictionsAccessor final : public graph::ITensorAccessor
115 * @param[in] labels_path Path to labels text file.
116 * @param[in] top_n (Optional) Number of output classes to print
117 * @param[out] output_stream (Optional) Output stream
119 TopNPredictionsAccessor(const std::string &labels_path, size_t top_n = 5, std::ostream &output_stream = std::cout);
120 /** Allow instances of this class to be move constructed */
121 TopNPredictionsAccessor(TopNPredictionsAccessor &&) = default;
122 /** Prevent instances of this class from being copied (As this class contains pointers) */
123 TopNPredictionsAccessor(const TopNPredictionsAccessor &) = delete;
124 /** Prevent instances of this class from being copied (As this class contains pointers) */
125 TopNPredictionsAccessor &operator=(const TopNPredictionsAccessor &) = delete;
127 // Inherited methods overriden:
128 bool access_tensor(ITensor &tensor) override;
131 std::vector<std::string> _labels;
132 std::ostream &_output_stream;
136 /** Random accessor class */
137 class RandomAccessor final : public graph::ITensorAccessor
142 * @param[in] lower Lower bound value.
143 * @param[in] upper Upper bound value.
144 * @param[in] seed (Optional) Seed used to initialise the random number generator.
146 RandomAccessor(PixelValue lower, PixelValue upper, const std::random_device::result_type seed = 0);
147 /** Allows instances to move constructed */
148 RandomAccessor(RandomAccessor &&) = default;
150 // Inherited methods overriden:
151 bool access_tensor(ITensor &tensor) override;
154 template <typename T, typename D>
155 void fill(ITensor &tensor, D &&distribution);
158 std::random_device::result_type _seed;
161 /** Numpy Binary loader class*/
162 class NumPyBinLoader final : public graph::ITensorAccessor
165 /** Default Constructor
167 * @param filename Binary file name
169 NumPyBinLoader(std::string filename);
170 /** Allows instances to move constructed */
171 NumPyBinLoader(NumPyBinLoader &&) = default;
173 // Inherited methods overriden:
174 bool access_tensor(ITensor &tensor) override;
177 const std::string _filename;
180 /** Generates appropriate weights accessor according to the specified path
182 * @note If path is empty will generate a DummyAccessor else will generate a NumPyBinLoader
184 * @param[in] path Path to the data files
185 * @param[in] data_file Relative path to the data files from path
187 * @return An appropriate tensor accessor
189 inline std::unique_ptr<graph::ITensorAccessor> get_weights_accessor(const std::string &path, const std::string &data_file)
193 return arm_compute::support::cpp14::make_unique<DummyAccessor>();
197 return arm_compute::support::cpp14::make_unique<NumPyBinLoader>(path + data_file);
201 /** Generates appropriate input accessor according to the specified ppm_path
203 * @note If ppm_path is empty will generate a DummyAccessor else will generate a PPMAccessor
205 * @param[in] ppm_path Path to PPM file
206 * @param[in] mean_r Red mean value to be subtracted from red channel
207 * @param[in] mean_g Green mean value to be subtracted from green channel
208 * @param[in] mean_b Blue mean value to be subtracted from blue channel
210 * @return An appropriate tensor accessor
212 inline std::unique_ptr<graph::ITensorAccessor> get_input_accessor(const std::string &ppm_path, float mean_r, float mean_g, float mean_b)
216 return arm_compute::support::cpp14::make_unique<DummyAccessor>();
220 return arm_compute::support::cpp14::make_unique<PPMAccessor>(ppm_path, true, mean_r, mean_g, mean_b);
224 /** Utility function to return the TargetHint
226 * @param[in] target Integer value which expresses the selected target. Must be 0 for NEON or 1 for OpenCL
228 * @return the TargetHint
230 inline graph::TargetHint set_target_hint(int target)
232 ARM_COMPUTE_ERROR_ON_MSG(target > 1, "Invalid target. Target must be 0 (NEON) or 1 (OpenCL)");
233 if(target == 1 && graph::Graph::opencl_is_available())
235 // If type of target is OpenCL, check if OpenCL is available and initialize the scheduler
236 return graph::TargetHint::OPENCL;
240 return graph::TargetHint::NEON;
244 /** Generates appropriate output accessor according to the specified labels_path
246 * @note If labels_path is empty will generate a DummyAccessor else will generate a TopNPredictionsAccessor
248 * @param[in] labels_path Path to labels text file
249 * @param[in] top_n (Optional) Number of output classes to print
250 * @param[out] output_stream (Optional) Output stream
252 * @return An appropriate tensor accessor
254 inline std::unique_ptr<graph::ITensorAccessor> get_output_accessor(const std::string &labels_path, size_t top_n = 5, std::ostream &output_stream = std::cout)
256 if(labels_path.empty())
258 return arm_compute::support::cpp14::make_unique<DummyAccessor>();
262 return arm_compute::support::cpp14::make_unique<TopNPredictionsAccessor>(labels_path, top_n, output_stream);
265 } // namespace graph_utils
266 } // namespace arm_compute
268 #endif /* __ARM_COMPUTE_GRAPH_UTILS_H__ */