| 199 | } |
| 200 | |
| 201 | bool GetDisplayConfigs(std::vector<DisplayConfig_t>& displayConfigs) |
| 202 | { |
| 203 | UINT32 num_paths; |
| 204 | UINT32 num_modes; |
| 205 | std::vector<DISPLAYCONFIG_PATH_INFO> paths; |
| 206 | std::vector<DISPLAYCONFIG_MODE_INFO> modes; |
| 207 | LONG res; |
| 208 | |
| 209 | // The display configuration could change between the call to |
| 210 | // GetDisplayConfigBufferSizes and the call to QueryDisplayConfig, so call |
| 211 | // them in a loop until the correct buffer size is chosen |
| 212 | do { |
| 213 | res = GetDisplayConfigBufferSizes(QDC_ONLY_ACTIVE_PATHS, &num_paths, &num_modes); |
| 214 | if (res == ERROR_SUCCESS) { |
| 215 | paths.resize(num_paths); |
| 216 | modes.resize(num_modes); |
| 217 | res = QueryDisplayConfig(QDC_ONLY_ACTIVE_PATHS, &num_paths, paths.data(), &num_modes, modes.data(), nullptr); |
| 218 | } |
| 219 | } while (res == ERROR_INSUFFICIENT_BUFFER); |
| 220 | |
| 221 | if (res != ERROR_SUCCESS) { |
| 222 | return false; |
| 223 | } |
| 224 | |
| 225 | displayConfigs.clear(); |
| 226 | |
| 227 | // num_paths and num_modes could decrease in a loop |
| 228 | paths.resize(num_paths); |
| 229 | modes.resize(num_modes); |
| 230 | |
| 231 | for (const auto& path : paths) { |
| 232 | // Send a GET_SOURCE_NAME request |
| 233 | DISPLAYCONFIG_SOURCE_DEVICE_NAME source = { |
| 234 | {DISPLAYCONFIG_DEVICE_INFO_GET_SOURCE_NAME, sizeof(source), path.sourceInfo.adapterId, path.sourceInfo.id}, {}, |
| 235 | }; |
| 236 | if (DisplayConfigGetDeviceInfo(&source.header) == ERROR_SUCCESS) { |
| 237 | DisplayConfig_t dc = {}; |
| 238 | if (path.sourceInfo.modeInfoIdx != DISPLAYCONFIG_PATH_MODE_IDX_INVALID) { |
| 239 | const auto& mode = modes[path.sourceInfo.modeInfoIdx]; |
| 240 | if (mode.infoType == DISPLAYCONFIG_MODE_INFO_TYPE_SOURCE) { |
| 241 | dc.width = mode.sourceMode.width;; |
| 242 | dc.height = mode.sourceMode.height; |
| 243 | } |
| 244 | } |
| 245 | if (path.targetInfo.modeInfoIdx != DISPLAYCONFIG_PATH_MODE_IDX_INVALID) { |
| 246 | const auto& mode = modes[path.targetInfo.modeInfoIdx]; |
| 247 | if (mode.infoType == DISPLAYCONFIG_MODE_INFO_TYPE_TARGET) { |
| 248 | dc.refreshRate = mode.targetMode.targetVideoSignalInfo.vSyncFreq; |
| 249 | dc.scanLineOrdering = mode.targetMode.targetVideoSignalInfo.scanLineOrdering; |
| 250 | } |
| 251 | dc.modeTarget = mode; |
| 252 | |
| 253 | if (IsWindows11_24H2OrGreater()) { |
| 254 | DISPLAYCONFIG_GET_ADVANCED_COLOR_INFO_2 color_info = { |
| 255 | {static_cast<DISPLAYCONFIG_DEVICE_INFO_TYPE>(DISPLAYCONFIG_DEVICE_INFO_GET_ADVANCED_COLOR_INFO_2), |
| 256 | sizeof(color_info), mode.adapterId, mode.id}, {} |
| 257 | }; |
| 258 | res = DisplayConfigGetDeviceInfo(&color_info.header); |
no test coverage detected