/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2019, Google Inc. * * control_serialization.cpp - Serialize and deserialize controls */ #include #include #include #include #include "libcamera/internal/byte_stream_buffer.h" #include "libcamera/internal/control_serializer.h" #include "serialization_test.h" #include "test.h" using namespace std; using namespace libcamera; class ControlSerializationTest : public SerializationTest { protected: int init() override { return status_; } int run() override { ControlSerializer serializer; ControlSerializer deserializer; std::vector infoData; std::vector listData; size_t size; int ret; /* Create a control list with three controls. */ const ControlInfoMap &infoMap = camera_->controls(); ControlList list(infoMap); list.set(controls::Brightness, 0.5f); list.set(controls::Contrast, 1.2f); list.set(controls::Saturation, 0.2f); /* * Serialize the control list, this should fail as the control * info map hasn't been serialized. */ size = serializer.binarySize(list); listData.resize(size); ByteStreamBuffer buffer(listData.data(), listData.size()); ret = serializer.serialize(list, buffer); if (!ret) { cerr << "List serialization without info map should have failed" << endl; return TestFail; } if (buffer.overflow() || buffer.offset()) { cerr << "Failed list serialization modified the buffer" << endl; return TestFail; } /* Serialize the control info map. */ size = serializer.binarySize(infoMap); infoData.resize(size); buffer = ByteStreamBuffer(infoData.data(), infoData.size()); ret = serializer.serialize(infoMap, buffer); if (ret < 0) { cerr << "Failed to serialize ControlInfoMap" << endl; return TestFail; } if (buffer.overflow()) { cerr << "Overflow when serializing ControlInfoMap" << endl; return TestFail; } /* Serialize the control list, this should now succeed. */ size = serializer.binarySize(list); listData.resize(size); buffer = ByteStreamBuffer(listData.data(), listData.size()); ret = serializer.serialize(list, buffer); if (ret) { cerr << "Failed to serialize ControlList" << endl; return TestFail; } if (buffer.overflow()) { cerr << "Overflow when serializing ControlList" << endl; return TestFail; } /* * Deserialize the control list, this should fail as the control * info map hasn't been deserialized. */ buffer = ByteStreamBuffer(const_cast(listData.data()), listData.size()); ControlList newList = deserializer.deserialize(buffer); if (!newList.empty()) { cerr << "List deserialization without info map should have failed" << endl; return TestFail; } if (buffer.overflow()) { cerr << "Failed list deserialization modified the buffer" << endl; return TestFail; } /* Deserialize the control info map and verify the contents. */ buffer = ByteStreamBuffer(const_cast(infoData.data()), infoData.size()); ControlInfoMap newInfoMap = deserializer.deserialize(buffer); if (newInfoMap.empty()) { cerr << "Failed to deserialize ControlInfoMap" << endl; return TestFail; } if (buffer.overflow()) { cerr << "Overflow when deserializing ControlInfoMap" << endl; return TestFail; } if (!equals(infoMap, newInfoMap)) { cerr << "Deserialized map doesn't match original" << endl; return TestFail; } /* Deserialize the control list and verify the contents. */ buffer = ByteStreamBuffer(const_cast(listData.data()), listData.size()); newList = deserializer.deserialize(buffer); if (newList.empty()) { cerr << "Failed to deserialize ControlList" << endl; return TestFail; } if (buffer.overflow()) { cerr << "Overflow when deserializing ControlList" << endl; return TestFail; } if (!equals(list, newList)) { cerr << "Deserialized list doesn't match original" << endl; return TestFail; } return TestPass; } }; TEST_REGISTER(ControlSerializationTest) 9'>29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214