2 // Copyright © 2017 Arm Ltd. All rights reserved.
3 // SPDX-License-Identifier: MIT
5 #include "Cifar10Database.hpp"
7 #include <armnn/Logging.hpp>
9 #include <boost/numeric/conversion/cast.hpp>
13 constexpr unsigned int g_kCifar10ImageByteSize = 1 + 3 * 32 * 32;
15 Cifar10Database::Cifar10Database(const std::string& binaryFileDirectory, bool rgbPack)
16 : m_BinaryDirectory(binaryFileDirectory), m_RgbPack(rgbPack)
20 std::unique_ptr<Cifar10Database::TTestCaseData> Cifar10Database::GetTestCaseData(unsigned int testCaseId)
22 std::vector<unsigned char> I(g_kCifar10ImageByteSize);
24 std::string fullpath = m_BinaryDirectory + std::string("test_batch.bin");
26 std::ifstream fileStream(fullpath, std::ios::binary);
27 if (!fileStream.is_open())
29 ARMNN_LOG(fatal) << "Failed to load " << fullpath;
33 fileStream.seekg(testCaseId * g_kCifar10ImageByteSize, std::ios_base::beg);
34 fileStream.read(reinterpret_cast<char*>(&I[0]), g_kCifar10ImageByteSize);
36 if (!fileStream.good())
38 ARMNN_LOG(fatal) << "Failed to read " << fullpath;
43 std::vector<float> inputImageData;
44 inputImageData.resize(g_kCifar10ImageByteSize - 1);
47 unsigned int countR_o;
48 unsigned int countG_o;
49 unsigned int countB_o;
50 unsigned int countR = 1;
51 unsigned int countG = 1 + 32 * 32;
52 unsigned int countB = 1 + 2 * 32 * 32;
65 countB_o = 2 * 32 * 32;
69 for (unsigned int h = 0; h < 32; h++)
71 for (unsigned int w = 0; w < 32; w++)
73 inputImageData[countR_o] = boost::numeric_cast<float>(I[countR++]);
74 inputImageData[countG_o] = boost::numeric_cast<float>(I[countG++]);
75 inputImageData[countB_o] = boost::numeric_cast<float>(I[countB++]);
83 const unsigned int label = boost::numeric_cast<unsigned int>(I[0]);
84 return std::make_unique<TTestCaseData>(label, std::move(inputImageData));