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Let me first read this file to gather the necessary information.","partial":false},{"ts":1744498865941,"type":"ask","ask":"tool","text":"{\"tool\":\"readFile\",\"path\":\"OpenVR_Modifications.md\",\"isOutsideWorkspace\":false,\"content\":\"c:\\\\Users\\\\decid\\\\Documents\\\\projects\\\\openvr-resilient\\\\OpenVR_Modifications.md\",\"reason\":\" (max 500 lines)\"}","partial":false},{"ts":1744498870377,"type":"say","say":"api_req_started","text":"{\"request\":\"[read_file for 'OpenVR_Modifications.md'] Result:\\n\\n<file><path>OpenVR_Modifications.md</path>\\n<content lines=\\\"1-304\\\">\\n  1 | # OpenVR Library Modifications for Raw IMU Data Access\\r\\n  2 | \\r\\n  3 | This document outlines the necessary modifications to the OpenVR library to enable continuous access to raw IMU data, even when optical tracking is lost.\\r\\n  4 | \\r\\n  5 | ## Problem Statement\\r\\n  6 | \\r\\n  7 | The current OpenVR API only provides IMU data through the `TrackedDevicePose_t` structure, which becomes invalid when optical tracking is lost. This means applications cannot access raw IMU data during tracking loss, which is problematic for applications that need continuous IMU data.\\r\\n  8 | \\r\\n  9 | ## Solution Overview\\r\\n 10 | \\r\\n 11 | After examining the OpenVR codebase at \\\"C:\\\\Users\\\\decid\\\\Documents\\\\projects\\\\openvr-resilient\\\", we've identified that OpenVR already has structures for IMU data (`ImuSample_t`) but doesn't expose a direct API for accessing this data continuously. We need to modify the OpenVR library to:\\r\\n 12 | \\r\\n 13 | 1. Expose a new interface for accessing raw IMU data\\r\\n 14 | 2. Implement this interface to provide access to the IMU data regardless of tracking state\\r\\n 15 | \\r\\n 16 | ## Detailed Modifications\\r\\n 17 | \\r\\n 18 | ### 1. Add a New Interface for IMU Data Access\\r\\n 19 | \\r\\n 20 | In `headers/openvr.h`, add a new interface definition and version string:\\r\\n 21 | \\r\\n 22 | ```cpp\\r\\n 23 | static const char* const IVRRawIMUData_Version = \\\"IVRRawIMUData_001\\\";\\r\\n 24 | \\r\\n 25 | /** Interface for accessing raw IMU data */\\r\\n 26 | class IVRRawIMUData\\r\\n 27 | {\\r\\n 28 | public:\\r\\n 29 |     /** Get raw gyroscope data in radians per second */\\r\\n 30 |     virtual bool GetRawGyroscopeData(float* x, float* y, float* z) = 0;\\r\\n 31 |     \\r\\n 32 |     /** Get raw accelerometer data in meters per second squared */\\r\\n 33 |     virtual bool GetRawAccelerometerData(float* x, float* y, float* z) = 0;\\r\\n 34 |     \\r\\n 35 |     /** Get the timestamp of the last IMU sample in seconds */\\r\\n 36 |     virtual bool GetIMUSampleTimestamp(double* timestamp) = 0;\\r\\n 37 |     \\r\\n 38 |     /** Get a full IMU sample containing both gyroscope and accelerometer data */\\r\\n 39 |     virtual bool GetIMUSample(vr::ImuSample_t* pSample) = 0;\\r\\n 40 | };\\r\\n 41 | ```\\r\\n 42 | \\r\\n 43 | ### 2. Implement the Interface in the OpenVR Runtime\\r\\n 44 | \\r\\n 45 | In `src/vrcore/vrcore_impl.cpp` (or an appropriate implementation file), add the implementation of the new interface:\\r\\n 46 | \\r\\n 47 | ```cpp\\r\\n 48 | class CVRRawIMUData : public IVRRawIMUData\\r\\n 49 | {\\r\\n 50 | public:\\r\\n 51 |     CVRRawIMUData()\\r\\n 52 |     {\\r\\n 53 |         // Initialize any necessary resources\\r\\n 54 |     }\\r\\n 55 |     \\r\\n 56 |     virtual ~CVRRawIMUData()\\r\\n 57 |     {\\r\\n 58 |         // Clean up resources\\r\\n 59 |     }\\r\\n 60 |     \\r\\n 61 |     virtual bool GetRawGyroscopeData(float* x, float* y, float* z) override\\r\\n 62 |     {\\r\\n 63 |         // Get the HMD device\\r\\n 64 |         vr::TrackedDeviceIndex_t hmdIndex = vr::k_unTrackedDeviceIndex_Hmd;\\r\\n 65 |         \\r\\n 66 |         // Check if the HMD is connected\\r\\n 67 |         if (!vr::VRSystem()->IsTrackedDeviceConnected(hmdIndex))\\r\\n 68 |             return false;\\r\\n 69 |         \\r\\n 70 |         // Try to get the latest IMU sample\\r\\n 71 |         vr::ImuSample_t sample;\\r\\n 72 |         if (GetIMUSample(&sample))\\r\\n 73 |         {\\r\\n 74 |             // Convert from double to float\\r\\n 75 |             *x = (float)sample.vGyro.v[0];\\r\\n 76 |             *y = (float)sample.vGyro.v[1];\\r\\n 77 |             *z = (float)sample.vGyro.v[2];\\r\\n 78 |             return true;\\r\\n 79 |         }\\r\\n 80 |         \\r\\n 81 |         return false;\\r\\n 82 |     }\\r\\n 83 |     \\r\\n 84 |     virtual bool GetRawAccelerometerData(float* x, float* y, float* z) override\\r\\n 85 |     {\\r\\n 86 |         // Get the HMD device\\r\\n 87 |         vr::TrackedDeviceIndex_t hmdIndex = vr::k_unTrackedDeviceIndex_Hmd;\\r\\n 88 |         \\r\\n 89 |         // Check if the HMD is connected\\r\\n 90 |         if (!vr::VRSystem()->IsTrackedDeviceConnected(hmdIndex))\\r\\n 91 |             return false;\\r\\n 92 |         \\r\\n 93 |         // Try to get the latest IMU sample\\r\\n 94 |         vr::ImuSample_t sample;\\r\\n 95 |         if (GetIMUSample(&sample))\\r\\n 96 |         {\\r\\n 97 |             // Convert from double to float\\r\\n 98 |             *x = (float)sample.vAccel.v[0];\\r\\n 99 |             *y = (float)sample.vAccel.v[1];\\r\\n100 |             *z = (float)sample.vAccel.v[2];\\r\\n101 |             return true;\\r\\n102 |         }\\r\\n103 |         \\r\\n104 |         return false;\\r\\n105 |     }\\r\\n106 |     \\r\\n107 |     virtual bool GetIMUSampleTimestamp(double* timestamp) override\\r\\n108 |     {\\r\\n109 |         // Get the HMD device\\r\\n110 |         vr::TrackedDeviceIndex_t hmdIndex = vr::k_unTrackedDeviceIndex_Hmd;\\r\\n111 |         \\r\\n112 |         // Check if the HMD is connected\\r\\n113 |         if (!vr::VRSystem()->IsTrackedDeviceConnected(hmdIndex))\\r\\n114 |             return false;\\r\\n115 |         \\r\\n116 |         // Try to get the latest IMU sample\\r\\n117 |         vr::ImuSample_t sample;\\r\\n118 |         if (GetIMUSample(&sample))\\r\\n119 |         {\\r\\n120 |             *timestamp = sample.fSampleTime;\\r\\n121 |             return true;\\r\\n122 |         }\\r\\n123 |         \\r\\n124 |         return false;\\r\\n125 |     }\\r\\n126 |     \\r\\n127 |     virtual bool GetIMUSample(vr::ImuSample_t* pSample) override\\r\\n128 |     {\\r\\n129 |         // This is the key method that needs to be implemented to access the raw IMU data\\r\\n130 |         // The implementation will depend on the specific driver and hardware\\r\\n131 |         \\r\\n132 |         // Get the HMD device\\r\\n133 |         vr::TrackedDeviceIndex_t hmdIndex = vr::k_unTrackedDeviceIndex_Hmd;\\r\\n134 |         \\r\\n135 |         // Check if the HMD is connected\\r\\n136 |         if (!vr::VRSystem()->IsTrackedDeviceConnected(hmdIndex))\\r\\n137 |             return false;\\r\\n138 |         \\r\\n139 |         // Access the IMU data buffer\\r\\n140 |         // This is where we need to access the driver's internal IMU data buffer\\r\\n141 |         // The exact implementation will depend on the specific driver\\r\\n142 |         \\r\\n143 |         // For example, we might use the IVRIOBuffer interface to access the IMU data buffer:\\r\\n144 |         vr::IOBufferHandle_t imuBuffer = vr::k_ulInvalidIOBufferHandle;\\r\\n145 |         vr::EIOBufferError error = vr::VRIOBuffer()->Open(\\r\\n146 |             \\\"/dev/imu/hmd\\\", \\r\\n147 |             vr::IOBufferMode_Read, \\r\\n148 |             sizeof(vr::ImuSample_t), \\r\\n149 |             1, \\r\\n150 |             &imuBuffer);\\r\\n151 |         \\r\\n152 |         if (error != vr::IOBufferError_None || imuBuffer == vr::k_ulInvalidIOBufferHandle)\\r\\n153 |             return false;\\r\\n154 |         \\r\\n155 |         uint32_t bytesRead = 0;\\r\\n156 |         error = vr::VRIOBuffer()->Read(imuBuffer, pSample, sizeof(vr::ImuSample_t), &bytesRead);\\r\\n157 |         \\r\\n158 |         vr::VRIOBuffer()->Close(imuBuffer);\\r\\n159 |         \\r\\n160 |         return (error == vr::IOBufferError_None && bytesRead == sizeof(vr::ImuSample_t));\\r\\n161 |     }\\r\\n162 | };\\r\\n163 | ```\\r\\n164 | \\r\\n165 | ### 3. Expose the Interface through the OpenVR API\\r\\n166 | \\r\\n167 | In the appropriate factory method in the OpenVR implementation (likely in `src/vrcore/vrcore_impl.cpp`), add code to create and return the new interface:\\r\\n168 | \\r\\n169 | ```cpp\\r\\n170 | void* CVRSystem::GetGenericInterface(const char* pchInterfaceVersion, vr::EVRInitError* peError)\\r\\n171 | {\\r\\n172 |     // Existing code...\\r\\n173 |     \\r\\n174 |     // Check for our new interface\\r\\n175 |     if (strcmp(pchInterfaceVersion, vr::IVRRawIMUData_Version) == 0)\\r\\n176 |     {\\r\\n177 |         if (!m_pRawIMUData)\\r\\n178 |         {\\r\\n179 |             m_pRawIMUData = new CVRRawIMUData();\\r\\n180 |         }\\r\\n181 |         \\r\\n182 |         if (peError)\\r\\n183 |             *peError = vr::VRInitError_None;\\r\\n184 |             \\r\\n185 |         return m_pRawIMUData;\\r\\n186 |     }\\r\\n187 |     \\r\\n188 |     // Existing code...\\r\\n189 | }\\r\\n190 | ```\\r\\n191 | \\r\\n192 | ### 4. Add the Interface Member to the CVRSystem Class\\r\\n193 | \\r\\n194 | In the appropriate header file (likely `src/vrcore/vrcore_impl.h`), add a member for the new interface:\\r\\n195 | \\r\\n196 | ```cpp\\r\\n197 | class CVRSystem : public vr::IVRSystem\\r\\n198 | {\\r\\n199 |     // Existing code...\\r\\n200 |     \\r\\n201 | private:\\r\\n202 |     // Existing members...\\r\\n203 |     CVRRawIMUData* m_pRawIMUData;\\r\\n204 | };\\r\\n205 | ```\\r\\n206 | \\r\\n207 | ## Building the Modified OpenVR Library\\r\\n208 | \\r\\n209 | 1. Clone the OpenVR repository: `git clone https://github.com/ValveSoftware/openvr.git`\\r\\n210 | 2. Make the modifications described above\\r\\n211 | 3. Build the library following the standard build instructions\\r\\n212 | 4. Replace the existing OpenVR library with your modified version\\r\\n213 | \\r\\n214 | ## Using the Modified Library\\r\\n215 | \\r\\n216 | Once the modified library is in place, you can access the raw IMU data using the following code:\\r\\n217 | \\r\\n218 | ```cpp\\r\\n219 | #include <openvr.h>\\r\\n220 | \\r\\n221 | // Get the raw IMU data interface\\r\\n222 | vr::IVRRawIMUData* pRawIMUData = nullptr;\\r\\n223 | vr::EVRInitError error = vr::VRInitError_None;\\r\\n224 | pRawIMUData = (vr::IVRRawIMUData*)vr::VR_GetGenericInterface(vr::IVRRawIMUData_Version, &error);\\r\\n225 | \\r\\n226 | if (error != vr::VRInitError_None || !pRawIMUData)\\r\\n227 | {\\r\\n228 |     // Handle error\\r\\n229 |     return false;\\r\\n230 | }\\r\\n231 | \\r\\n232 | // Get the raw gyroscope data\\r\\n233 | float gyroX, gyroY, gyroZ;\\r\\n234 | if (pRawIMUData->GetRawGyroscopeData(&gyroX, &gyroY, &gyroZ))\\r\\n235 | {\\r\\n236 |     // Use the gyroscope data\\r\\n237 |     printf(\\\"Gyro: %f, %f, %f\\\\n\\\", gyroX, gyroY, gyroZ);\\r\\n238 | }\\r\\n239 | \\r\\n240 | // Get the raw accelerometer data\\r\\n241 | float accelX, accelY, accelZ;\\r\\n242 | if (pRawIMUData->GetRawAccelerometerData(&accelX, &accelY, &accelZ))\\r\\n243 | {\\r\\n244 |     // Use the accelerometer data\\r\\n245 |     printf(\\\"Accel: %f, %f, %f\\\\n\\\", accelX, accelY, accelZ);\\r\\n246 | }\\r\\n247 | \\r\\n248 | // Get a full IMU sample\\r\\n249 | vr::ImuSample_t sample;\\r\\n250 | if (pRawIMUData->GetIMUSample(&sample))\\r\\n251 | {\\r\\n252 |     // Use the IMU sample\\r\\n253 |     printf(\\\"IMU Sample: Time=%f, Gyro=(%f, %f, %f), Accel=(%f, %f, %f)\\\\n\\\",\\r\\n254 |         sample.fSampleTime,\\r\\n255 |         sample.vGyro.v[0], sample.vGyro.v[1], sample.vGyro.v[2],\\r\\n256 |         sample.vAccel.v[0], sample.vAccel.v[1], sample.vAccel.v[2]);\\r\\n257 | }\\r\\n258 | ```\\r\\n259 | \\r\\n260 | ## Alternative Approaches\\r\\n261 | \\r\\n262 | If modifying the OpenVR library is not feasible, consider these alternatives:\\r\\n263 | \\r\\n264 | ### 1. Use the IVRIOBuffer Interface\\r\\n265 | \\r\\n266 | The OpenVR API already includes an `IVRIOBuffer` interface that might be used to access raw IMU data. This would require knowledge of the specific buffer paths used by the driver to store IMU data.\\r\\n267 | \\r\\n268 | ```cpp\\r\\n269 | vr::IVRIOBuffer* pIOBuffer = vr::VRIOBuffer();\\r\\n270 | vr::IOBufferHandle_t imuBuffer = vr::k_ulInvalidIOBufferHandle;\\r\\n271 | vr::EIOBufferError error = pIOBuffer->Open(\\\"/dev/imu/hmd\\\", vr::IOBufferMode_Read, sizeof(vr::ImuSample_t), 1, &imuBuffer);\\r\\n272 | \\r\\n273 | if (error == vr::IOBufferError_None && imuBuffer != vr::k_ulInvalidIOBufferHandle)\\r\\n274 | {\\r\\n275 |     vr::ImuSample_t sample;\\r\\n276 |     uint32_t bytesRead = 0;\\r\\n277 |     error = pIOBuffer->Read(imuBuffer, &sample, sizeof(vr::ImuSample_t), &bytesRead);\\r\\n278 |     \\r\\n279 |     if (error == vr::IOBufferError_None && bytesRead == sizeof(vr::ImuSample_t))\\r\\n280 |     {\\r\\n281 |         // Use the IMU sample\\r\\n282 |         printf(\\\"IMU Sample: Time=%f, Gyro=(%f, %f, %f), Accel=(%f, %f, %f)\\\\n\\\",\\r\\n283 |             sample.fSampleTime,\\r\\n284 |             sample.vGyro.v[0], sample.vGyro.v[1], sample.vGyro.v[2],\\r\\n285 |             sample.vAccel.v[0], sample.vAccel.v[1], sample.vAccel.v[2]);\\r\\n286 |     }\\r\\n287 |     \\r\\n288 |     pIOBuffer->Close(imuBuffer);\\r\\n289 | }\\r\\n290 | ```\\r\\n291 | \\r\\n292 | ### 2. Create a Custom Driver\\r\\n293 | \\r\\n294 | Create a custom OpenVR driver that wraps the existing driver and exposes the IMU data through a custom interface.\\r\\n295 | \\r\\n296 | ### 3. Use a Different VR SDK\\r\\n297 | \\r\\n298 | Consider using a different VR SDK that provides direct access to IMU data, such as the Oculus SDK or the SteamVR Unity Plugin.\\r\\n299 | \\r\\n300 | ## Notes\\r\\n301 | \\r\\n302 | - The exact implementation details may vary depending on the specific driver you're using (HTC Vive, Oculus, etc.)\\r\\n303 | - You may need to study the driver code to understand how to access the raw IMU data\\r\\n304 | - Some drivers may already have internal access to raw IMU data, but don't expose it through the public API\\n</content>\\n</file>\\n\\n<environment_details>\\n# VSCode Visible Files\\nOpenVR_Modifications.md\\n\\n# VSCode Open Tabs\\nREADME.md,OpenVR_Modifications.md,build.bat,src/vrcore/pathtools_public_fixed.h,src/vrcore/sharedlibtools_public_fixed.cpp,src/vrcore/strtools_public_fixed.cpp,src/vrcore/pathtools_public.h,src/vrcore/vrpathregistry_public_fixed.cpp,headers/openvr_capi.h,.gitignore,headers/openvr_driver.h,headers/openvr.h,src/openvr_api_public.cpp,src/vrcore/pathtools_public_fixed.cpp,openvr_api.vcxproj\\n\\n# Current Time\\n4/12/2025, 4:01:10 PM (America/Los_Angeles, UTC-7:00)\\n\\n# Current Context Size (Tokens)\\n11,630 (6%)\\n\\n# Current Cost\\n$0.04\\n\\n# Current Mode\\n<slug>ask</slug>\\n<name>Ask</name>\\n\\n\\nNOTE: You are currently in 'Ask' mode, which does not allow write operations. To write files, the user will need to switch to a mode that supports file writing, such as 'Code' mode.\\n</environment_details>\",\"tokensIn\":4,\"tokensOut\":92,\"cacheWrites\":4850,\"cacheReads\":11548,\"cost\":0.0230439}"},{"ts":1744498872475,"type":"say","say":"text","text":"Now that I've read the OpenVR_Modifications.md file, I have a good understanding of the problem, proposed solutions, and current implementation status. Let me also check the README.md file to see if there's any additional context that might be helpful for my summary.","partial":false},{"ts":1744498873736,"type":"ask","ask":"tool","text":"{\"tool\":\"readFile\",\"path\":\"README.md\",\"isOutsideWorkspace\":false,\"content\":\"c:\\\\Users\\\\decid\\\\Documents\\\\projects\\\\openvr-resilient\\\\README.md\",\"reason\":\" (max 500 lines)\"}","partial":false},{"ts":1744498885006,"type":"say","say":"api_req_started","text":"{\"request\":\"[read_file for 'README.md'] Result:\\n\\n<file><path>README.md</path>\\n<content lines=\\\"1-25\\\">\\n 1 | OpenVR SDK\\r\\n 2 | ---\\r\\n 3 | \\r\\n 4 | OpenVR is an API and runtime that allows access to VR hardware from multiple\\r\\n 5 | vendors without requiring that applications have specific knowledge of the\\r\\n 6 | hardware they are targeting. This repository is an SDK that contains the API\\r\\n 7 | and samples. The runtime is under SteamVR in Tools on Steam.\\r\\n 8 | \\r\\n 9 | ### Documentation\\r\\n10 | \\r\\n11 | #### Application API\\r\\n12 | \\r\\n13 | Documentation for the Application API is available on\\r\\n14 | the [GitHub Wiki](https://github.com/ValveSoftware/openvr/wiki/API-Documentation).\\r\\n15 | \\r\\n16 | #### Driver API\\r\\n17 | \\r\\n18 | Current documentation for the Driver API can be found in [docs/Driver_API_Documentation.md](docs/).\\r\\n19 | \\r\\n20 | * Old driver API documentation can still be found on\\r\\n21 |   the [GitHub Wiki](https://github.com/ValveSoftware/openvr/wiki/Driver-Documentation).\\r\\n22 | \\r\\n23 | ### About\\r\\n24 | \\r\\n25 | More information on OpenVR and SteamVR can be found on https://steamvr.com\\r\\n</content>\\n</file>\\n\\n<environment_details>\\n# VSCode Visible Files\\nOpenVR_Modifications.md\\n\\n# VSCode Open Tabs\\nREADME.md,OpenVR_Modifications.md,build.bat,src/vrcore/pathtools_public_fixed.h,src/vrcore/sharedlibtools_public_fixed.cpp,src/vrcore/strtools_public_fixed.cpp,src/vrcore/pathtools_public.h,src/vrcore/vrpathregistry_public_fixed.cpp,headers/openvr_capi.h,.gitignore,headers/openvr_driver.h,headers/openvr.h,src/openvr_api_public.cpp,src/vrcore/pathtools_public_fixed.cpp,openvr_api.vcxproj\\n\\n# Current Time\\n4/12/2025, 4:01:25 PM (America/Los_Angeles, UTC-7:00)\\n\\n# Current Context Size (Tokens)\\n16,494 (8%)\\n\\n# Current Cost\\n$0.07\\n\\n# Current Mode\\n<slug>ask</slug>\\n<name>Ask</name>\\n\\n\\nNOTE: You are currently in 'Ask' mode, which does not allow write operations. To write files, the user will need to switch to a mode that supports file writing, such as 'Code' mode.\\n</environment_details>\",\"tokensIn\":4,\"tokensOut\":69,\"cacheWrites\":765,\"cacheReads\":16398,\"cost\":0.00883515}"},{"ts":1744498886884,"type":"say","say":"text","text":"Let me also check the Driver API documentation to better understand the context for implementing a custom driver solution (alternative approach #2).","partial":false},{"ts":1744498887738,"type":"ask","ask":"tool","text":"{\"tool\":\"readFile\",\"path\":\"docs/Driver_API_Documentation.md\",\"isOutsideWorkspace\":false,\"content\":\"c:\\\\Users\\\\decid\\\\Documents\\\\projects\\\\openvr-resilient\\\\docs\\\\Driver_API_Documentation.md\",\"reason\":\" (max 500 lines)\"}","partial":false},{"ts":1744498895717,"type":"say","say":"api_req_started","text":"{\"request\":\"[read_file for 'docs/Driver_API_Documentation.md'] Result:\\n\\n<file><path>docs/Driver_API_Documentation.md</path>\\n<content lines=\\\"1-500\\\">\\n  1 | # OpenVR Driver Documentation\\r\\n  2 | \\r\\n  3 | - [OpenVR Driver Documentation](#openvr-driver-documentation)\\r\\n  4 |     - [About](#about)\\r\\n  5 |     - [Overview & Important points](#overview--important-points)\\r\\n  6 |         - [Using interfaces implemented by the runtime](#using-interfaces-implemented-by-the-runtime)\\r\\n  7 |         - [Import interfaces and functions](#import-interfaces-and-functions)\\r\\n  8 |     - [Driver Folder Structure](#driver-folder-structure)\\r\\n  9 |     - [Driver files](#driver-files)\\r\\n 10 |         - [driver.vrdrivermanifest](#drivervrdrivermanifest)\\r\\n 11 |         - [resources/driver.vrresources](#resourcesdrivervrresources)\\r\\n 12 |             - [Example](#example)\\r\\n 13 |         - [localization/localization.json](#localizationlocalizationjson)\\r\\n 14 |             - [Defining localization in one file](#defining-localization-in-one-file)\\r\\n 15 |             - [Defining localization in multiple files](#defining-localization-in-multiple-files)\\r\\n 16 |         - [resources/settings/default.vrsettings](#resourcessettingsdefaultvrsettings)\\r\\n 17 |             - [Example](#example)\\r\\n 18 |     - [Icons](#icons)\\r\\n 19 |         - [Setting icons](#setting-icons)\\r\\n 20 |         - [Updating Icons](#updating-icons)\\r\\n 21 |     - [Device Classes](#device-classes)\\r\\n 22 |         - [Controller roles](#controller-roles)\\r\\n 23 |         - [Trackers (Full body Tracking)](#trackers-full-body-tracking)\\r\\n 24 | - [Driver Structure](#driver-structure)\\r\\n 25 |     - [HmdDriverFactory](#hmddriverfactory)\\r\\n 26 |     - [IServerTrackedDeviceProvider](#iservertrackeddeviceprovider)\\r\\n 27 |         - [Example](#example)\\r\\n 28 |     - [ITrackedDeviceServerDriver](#itrackeddeviceserverdriver)\\r\\n 29 |         - [Device Components](#device-components)\\r\\n 30 |             - [IVRDisplayComponent](#ivrdisplaycomponent)\\r\\n 31 |             - [IVRDriverDirectModeComponent](#ivrdriverdirectmodecomponent)\\r\\n 32 |             - [IVRVirtualDisplay](#ivrvirtualdisplay)\\r\\n 33 |     - [IVRServerDriverHost](#ivrserverdriverhost)\\r\\n 34 |     - [IVRDriverLog](#ivrdriverlog)\\r\\n 35 |     - [IVRWatchdogProvider](#ivrwatchdogprovider)\\r\\n 36 |         - [The watchdog interface is deprecated and should no longer be used for new projects.](#the-watchdog-interface-is-deprecated-and-should-no-longer-be-used-for-new-projects)\\r\\n 37 |         - [IVRWatchdogHost](#ivrwatchdoghost)\\r\\n 38 |     - [Device Inputs](#device-inputs)\\r\\n 39 |         - [Input Profiles](#input-profiles)\\r\\n 40 |             - [Input sources](#input-sources)\\r\\n 41 |         - [Input Profile JSON](#input-profile-json)\\r\\n 42 |             - [Reserved input sources](#reserved-input-sources)\\r\\n 43 |     - [Binding Profiles](#binding-profiles)\\r\\n 44 |         - [Default Bindings](#default-bindings)\\r\\n 45 |     - [Driver Input](#driver-input)\\r\\n 46 |         - [Creating Components](#creating-components)\\r\\n 47 |         - [Updating Components](#updating-components)\\r\\n 48 |     - [Events](#events)\\r\\n 49 |         - [Haptic Events](#haptic-events)\\r\\n 50 |     - [Device Properties](#device-properties)\\r\\n 51 |         - [Implementing Properties](#implementing-properties)\\r\\n 52 |         - [IVRProperties](#ivrproperties)\\r\\n 53 |         - [CVRPropertyHelpers](#cvrpropertyhelpers)\\r\\n 54 |             - [Getting properties](#getting-properties)\\r\\n 55 |             - [Setting Properties](#setting-properties)\\r\\n 56 |             - [Property Utilities](#property-utilities)\\r\\n 57 |     - [IVRSettings](#ivrsettings)\\r\\n 58 |     - [IVRResources](#ivrresources)\\r\\n 59 |     - [IVRDriverSpatialAnchors](#ivrdriverspatialanchors)\\r\\n 60 |     - [Poses](#poses)\\r\\n 61 |     - [Skeletal Input](#skeletal-input)\\r\\n 62 |         - [Notes on hand tracking compatibility](#notes-on-hand-tracking-compatibility)\\r\\n 63 |         - [The Skeleton](#the-skeleton)\\r\\n 64 |         - [Units and Coordinate System](#units-and-coordinate-system)\\r\\n 65 |         - [Bone Structure](#bone-structure)\\r\\n 66 |             - [Notes on the skeleton](#notes-on-the-skeleton)\\r\\n 67 |         - [Using Skeletal Input](#using-skeletal-input)\\r\\n 68 |             - [Creating Hand Animations](#creating-hand-animations)\\r\\n 69 |     - [Application Compatibility](#application-compatibility)\\r\\n 70 |         - [Automatic Rebinding](#automatic-rebinding)\\r\\n 71 |             - [File Structure](#file-structure)\\r\\n 72 |             - [One-to-Many Remappings](#one-to-many-remappings)\\r\\n 73 |             - [Examples](#examples)\\r\\n 74 |         - [Emulating Devices in Bindings](#emulating-devices-in-bindings)\\r\\n 75 |             - [SteamVR Input and Legacy Input](#steamvr-input-and-legacy-input)\\r\\n 76 |             - [OpenXR](#openxr)\\r\\n 77 |         - [Legacy Binding Simulation](#legacy-binding-simulation)\\r\\n 78 |         - [Binding Duplication](#binding-duplication)\\r\\n 79 |         - [Emulateable Devices](#emulateable-devices)\\r\\n 80 |     - [Render Models](#render-models)\\r\\n 81 |     - [Chaperone](#chaperone)\\r\\n 82 |     - [Building & Development Environment](#building--development-environment)\\r\\n 83 |         - [Debugging SteamVR with Visual Studio](#debugging-steamvr-with-visual-studio)\\r\\n 84 | - [Further Examples](#further-examples)\\r\\n 85 | \\r\\n 86 | ## About\\r\\n 87 | \\r\\n 88 | OpenVR provides a driver interface for hardware to interact with SteamVR and OpenVR-supported applications.  \\r\\n 89 | The interface is **device-agnostic**: applications do not need to provide explicit support for your hardware, and so\\r\\n 90 | long as you conform to the OpenVR driver API, your devices will be supported in SteamVR games.\\r\\n 91 | \\r\\n 92 | It's important to note that OpenVR **does not** provide definitions for the functions it declares. These functions are\\r\\n 93 | implemented into SteamVR, or any other conformant OpenVR *runtime*.\\r\\n 94 | \\r\\n 95 | SteamVR is backwards compatible with previous versions of OpenVR. If OpenVR\\r\\n 96 | interfaces were to be updated, a driver or application developer need not update their software, as it is guaranteed to\\r\\n 97 | continue to be supported.\\r\\n 98 | \\r\\n 99 | The documentation provides an overview of common interfaces and use cases for setting up a driver.\\r\\n100 | \\r\\n101 | ## Overview & Important points\\r\\n102 | \\r\\n103 | The available interfaces in the OpenVR Driver API can be found\\r\\n104 | in [openvr/headers/openvr_driver.h](https://github.com/ValveSoftware/openvr/blob/master/headers/openvr_driver.h).\\r\\n105 | \\r\\n106 | Sample drivers can be found in `samples/drivers`.\\r\\n107 | \\r\\n108 | ### Using interfaces implemented by the runtime\\r\\n109 | \\r\\n110 | Some interfaces in the OpenVR Driver API are implemented already by the runtime. You **must not** implement\\r\\n111 | these interfaces yourself, but you **can** call the methods they contain. These interfaces include:\\r\\n112 | \\r\\n113 | * `IVRSettings`\\r\\n114 | * `IVRProperties`\\r\\n115 | * `CVRPropertyHelpers`\\r\\n116 | * `CVRHiddenAreaHelpers`\\r\\n117 | * `IVRDriverLog`\\r\\n118 | * `IVRServerDriverHost`\\r\\n119 | * `IVRWatchdogHost`\\r\\n120 | * `IVRCompositorDriverHost`\\r\\n121 | * `DriverHandle_t`\\r\\n122 | * `IVRDriverManager`\\r\\n123 | * `IVRResources`\\r\\n124 | * `IVRDriverInput`\\r\\n125 | * `IVRIOBuffer`\\r\\n126 | * `IVRDriverSpatialAnchors`\\r\\n127 | \\r\\n128 | The OpenVR Driver API provides utility functions to retrieve pointers to these objects. They are functions of\\r\\n129 | the same name as the interface, without the `I` prefix. For example: `vr::VRServerDriverHost()` returns a valid pointer\\r\\n130 | to an `IVRServerDriverHost` implemented in the runtime.\\r\\n131 | \\r\\n132 | ```c++\\r\\n133 | IVRDriverLog* log = vr::VRDriverLog();\\r\\n134 | IVRSettings* settings = vr::VRSettings();\\r\\n135 | \\r\\n136 | // Some of these methods return pointers to wrappers around the origin classes to help simplify them\\r\\n137 | CVRPropertyHelpers* properties = vr::VRProperties();\\r\\n138 | ```\\r\\n139 | \\r\\n140 | ### Import interfaces and functions\\r\\n141 | \\r\\n142 | This section provides a short introduction to what the code that you will be writing for your driver will look like.\\r\\n143 | This section **does not** provide documentation on the interfaces, but a brief overview of what you'll be writing will\\r\\n144 | look like.\\r\\n145 | \\r\\n146 | The flow typically looks like this. Documentation on each of these classes and methods are outlined elsewhere.\\r\\n147 | \\r\\n148 | ```mermaid\\r\\n149 | graph TD;\\r\\n150 |     A[HmdDriverFactory]-->B[IServerTrackedDeviceProvider];\\r\\n151 |     B-->C[\\\"IServerTrackedDeviceProvider::Init\\\"];\\r\\n152 |     B-->D[\\\"IServerTrackedDeviceProvider::RunFrame\\\"];\\r\\n153 | \\r\\n154 |     C--\\\"VRServerDriverHost()->TrackedDeviceAdded(...)\\\"-->E[\\\"ITrackedDeviceServerDriver::Activate\\\"];\\r\\n155 |     D-->G[\\\"VRServerDriverHost()->PollNextEvent(...)\\\"];\\r\\n156 | \\r\\n157 |     E-->H[\\\"VRProperties()->SetXProperty(...)\\\"];\\r\\n158 |     E-->I[\\\"VRDriverInput()->CreateXComponent(...)\\\"];\\r\\n159 | \\r\\n160 |     C-->M[\\\"MyDeviceDriver::MyInputThread\\\"];\\r\\n161 |     M-->N[\\\"VRDriverInput()->UpdateXComponent(...)\\\"];\\r\\n162 | \\r\\n163 |     A-->K[IVRWatchdogProvider];\\r\\n164 |     K-->L[\\\"VRWatchdogHost()->WatchdogWakeUp(...)\\\"];\\r\\n165 | ```\\r\\n166 | \\r\\n167 | ## Driver Folder Structure\\r\\n168 | \\r\\n169 |     <driver_name>\\r\\n170 |     ├── bin                                          # Contains all binary files\\r\\n171 |     │   ├── win64   \\r\\n172 |     │   │   └── driver_<driver_name>.dll             # Driver binary. The name MUST follow the driver_<driver_name>.dll pattern in order for it to be loaded\\r\\n173 |     │   └── ...\\r\\n174 |     ├── resources                                    # Contains all resource files\\r\\n175 |     │   ├── icons\\r\\n176 |     │   │   ├── <my_device_status>.png               # Device status & binding icons.\\r\\n177 |     │   │   └── ...\\r\\n178 |     │   ├── input\\r\\n179 |     │   │   ├── <my_controller>_profile.json         # Input profile for device\\r\\n180 |     │   │   └── legacy_binding_<my_controller>.json  # Legacy binding file for your device\\r\\n181 |     │   ├── localization\\r\\n182 |     │   │   ├── localization.json                    # Localized strings that will appear in places such as the bindings configuration interface.\\r\\n183 |     │   │   └── locatization_<lang>.json             # Optional: specify localization languages in different files \\r\\n184 |     │   ├── settings\\r\\n185 |     │   │   └── default.vrsettings                   # Default Driver settings\\r\\n186 |     │   └── driver.vrresources                       # Defines resources for the driver's devices, such as icons\\r\\n187 |     └── driver.vrdrivermanifest                      # Manifest file that identifies the location of the driver binaries (relative to the manifest file) and several other attributes of the driver.\\r\\n188 | \\r\\n189 | <br />\\r\\n190 | \\r\\n191 | `<driver_name>` **should** be a non-whitespace, lowercase string giving the name of your driver.\\r\\n192 | \\r\\n193 | `<driver_name>` **must** be the same between the name of the driver binary file, and the root folder name.\\r\\n194 | \\r\\n195 | - Inconsistent naming **will** result in SteamVR returning `VRInitError_Init_FileNotFound` when attempting to load the\\r\\n196 |   driver.\\r\\n197 | \\r\\n198 | ## Driver files\\r\\n199 | \\r\\n200 | SteamVR uses the JSON format for many of its configuration files. Files containing invalid JSON (such as trailing\\r\\n201 | commas), **will**\\r\\n202 | cause the runtime to fail to load the files.\\r\\n203 | \\r\\n204 | ### driver.vrdrivermanifest\\r\\n205 | \\r\\n206 | The `driver.vrdrivermanifest` is a **required** file that lives in the **root** of the driver folder.\\r\\n207 | \\r\\n208 | It contains information relating to attributes of your driver.\\r\\n209 | \\r\\n210 | * `name` - The globally-unique name of the driver. The name **must** match the root folder name (the folder that\\r\\n211 |   contains the `driver.vrdrivermanifest`). The driver DLL(s) **must** also be called `driver_<name>.dll` (or the\\r\\n212 |   equivalent\\r\\n213 |   extension for other platforms).\\r\\n214 | * `directory` - The name of the directory that contains the rest of the driver files. If this is a relative path it is\\r\\n215 |   relative to the directory that contains `driver.vrdrivermanifest`. Defaults to the full path contains\\r\\n216 |   `driver.vrdrivermanifest`.\\r\\n217 | * `alwaysActivate` - If this is true this driver will be activated even if the active HMD is from another driver.\\r\\n218 |   Defaults to false.\\r\\n219 |     - A driver that exposes *only* controllers, **should** set this to true if it is known that the HMD may be from a\\r\\n220 |       different tracking system.\\r\\n221 | * `resourceOnly` - The driver contains a `resources` directory, but not any binaries. This is used for\\r\\n222 |   *lighthouse-tracked devices*, which define driver behaviour and inputs through a JSON file. See `The JSON File` for\\r\\n223 |   information.\\r\\n224 | * `hmd_presence` - This is an array of strings that identify the USB VID and PID combinations that indicate an HMD from\\r\\n225 |   this driver is probably present. Each entry **should** be hex values in this form:\\r\\n226 |     * `28DE.*` - Any USB device with a VID of 28DE will cause OpenVR to return true from `VR_IsHmdPresent`.\\r\\n227 |     * `28DE.2000` - Any USE device with a VID of 28DE and a PID of 2000 will cause OpenVR to return true\\r\\n228 |       from `VR_IsHmdPresent`.\\r\\n229 |     * `*.*` - The runtime **will** always return true from `VR_IsHmdPresent` if this driver is installed.\\r\\n230 | * `other_presence` - An array of strings in the same format as hmd_presence that indicates that there is a non-HMD\\r\\n231 |   device plugged in.\\r\\n232 | * `redirectsDisplay` - Whether the device implements `vr::TrackedDeviceClass_DisplayRedirect` devices.\\r\\n233 |   See [IVRVirtualDisplay](#ivrvirtualdisplay) for more details.\\r\\n234 | * `prefersUpperDeviceIndices` - Whether the device should be activated with a higher index. This will make it a lower\\r\\n235 |   priority for being set in an active role. Defaults to false.\\r\\n236 | * `spatialAnchorsSupport` - Whether the device supports [Spatial Anchors](#ivrdriverspatialanchors). Defaults to false.\\r\\n237 |   Without this, SteamVR **will** short-circuit anchor requests from applications and provide a generic descriptor that\\r\\n238 |   does not have any of the advantages of true spatial anchors.\\r\\n239 | \\r\\n240 | The sample `driver.vrdrivermanifest` looks like this:\\r\\n241 | \\r\\n242 | ```json\\r\\n243 | {\\r\\n244 |   \\\"alwaysActivate\\\": false,\\r\\n245 |   \\\"name\\\": \\\"barebones\\\",\\r\\n246 |   \\\"directory\\\": \\\"\\\",\\r\\n247 |   \\\"resourceOnly\\\": false,\\r\\n248 |   \\\"hmd_presence\\\": [\\r\\n249 |     \\\"*.*\\\"\\r\\n250 |   ]\\r\\n251 | }\\r\\n252 | ```\\r\\n253 | \\r\\n254 | See `samples/drivers/barebones` for a full example.\\r\\n255 | \\r\\n256 | ### resources/driver.vrresources\\r\\n257 | \\r\\n258 | The `driver.vrresources` file is an optional file that lives in the `resources/` folder.\\r\\n259 | \\r\\n260 | It contains information relating to the external resources of your driver such as icons.\\r\\n261 | These icons are displayed in the SteamVR monitor window while SteamVR is running\\r\\n262 | and convey icon-representations of the current status of your devices.\\r\\n263 | \\r\\n264 | See [Icons](#icons) for how these icons should be formatted.\\r\\n265 | \\r\\n266 | `driver.vrresources` contains the following keys:\\r\\n267 | \\r\\n268 | * `jsonid` - Required. The value of this **must** be `vrresources` for this file.\\r\\n269 | * `statusicons` - Optional. Used to define icons for specific device types\\r\\n270 |     * `<model_number>` - The `Prop_ModelNumber_String` of the device you want to define icons for.\\r\\n271 |       See [Device Properties](#Device-Properties) for setting this property.\\r\\n272 |         * `<icon_name>` - The name of the icon to provide the path to. A list of possible keys for the names of icons\\r\\n273 |           are listed in [Setting Icons](#setting-icons).\\r\\n274 |             * Values of `<icon_name>` represent the path to an image file. File paths **can** use the `{<driver_name>}`\\r\\n275 |               wildcard format to match the root path to the driver. For\\r\\n276 |               example: `{my_driver}/resources/icons/my_image.png`.\\r\\n277 |             * See [Icons](#icons) for more information on how the icons should be formatted.\\r\\n278 |             * If a key is not specified, the `{system}/icons/invalid_status.png` icon **will** be used.\\r\\n279 |         * `Alias` - a reserved key for chaining through different model number icons (see example).\\r\\n280 |             * Icon name keys that are not found in the original section will chase through to the section specified by\\r\\n281 |               the value of the `Alias` key.\\r\\n282 |             * This is useful for different model numbers that might have the same icons for some images, but not others,\\r\\n283 |               and this allows the driver to avoid duplication by providing a \\\"common\\\" icon section.\\r\\n284 | \\r\\n285 | If `Prop_ModelNumber_String` is not matched, a fallback considers the following child keys of `statusicons`:\\r\\n286 | \\r\\n287 | * `HMD` - Considered for driver devices of class `TrackedDeviceClass_HMD`. See [Device Classes](#device-classes) for\\r\\n288 |   more\\r\\n289 |   information.\\r\\n290 | * `<Left/Right>Controller` - Considered for driver devices of class `TrackedDeviceClass_Controller`.\\r\\n291 |   See [Device Classes](#device-classes) for more information.\\r\\n292 |     - If `<Left/Right>` is omitted, a fallback to `Controller` is considered. However, this means that the user won't be\\r\\n293 |       able to identify which icon represents the left/right hand.\\r\\n294 | * `GenericTracker` - Considered for driver devices of class `TrackedDeviceClass_GenericTracker`.\\r\\n295 |   See [Device Classes](#device-classes) for more information.\\r\\n296 | * `TrackingReference` - Considered for driver devices of class `TrackedDeviceClass_TrackingReference`.\\r\\n297 |   See [Device Classes](#device-classes) for more information.\\r\\n298 | \\r\\n299 | If these are not matched, the runtime **will** fallback to generic icons specified under these same keys\\r\\n300 | in `system.vrresources`.\\r\\n301 | \\r\\n302 | #### Example\\r\\n303 | \\r\\n304 | ```json\\r\\n305 | {\\r\\n306 |   \\\"jsonid\\\": \\\"vrresources\\\",\\r\\n307 |   \\\"statusicons\\\": {\\r\\n308 |     \\\"HMD\\\": {\\r\\n309 |       \\\"Prop_NamedIconPathDeviceOff_String\\\": \\\"{sample}/icons/headset_sample_status_off.png\\\",\\r\\n310 |       \\\"Prop_NamedIconPathDeviceSearching_String\\\": \\\"{sample}/icons/headset_sample_status_searching.gif\\\",\\r\\n311 |       \\\"Prop_NamedIconPathDeviceSearchingAlert_String\\\": \\\"{sample}/icons/headset_sample_status_searching_alert.gif\\\",\\r\\n312 |       \\\"Prop_NamedIconPathDeviceReady_String\\\": \\\"{sample}/icons/headset_sample_status_ready.png\\\",\\r\\n313 |       \\\"Prop_NamedIconPathDeviceReadyAlert_String\\\": \\\"{sample}/icons/headset_sample_status_ready_alert.png\\\",\\r\\n314 |       \\\"Prop_NamedIconPathDeviceNotReady_String\\\": \\\"{sample}/icons/headset_sample_status_error.png\\\",\\r\\n315 |       \\\"Prop_NamedIconPathDeviceStandby_String\\\": \\\"{sample}/icons/headset_sample_status_standby.png\\\",\\r\\n316 |       \\\"Prop_NamedIconPathDeviceAlertLow_String\\\": \\\"{sample}/icons/headset_sample_status_ready_low.png\\\"\\r\\n317 |     },\\r\\n318 |     \\\"Model-v Defaults\\\": {\\r\\n319 |       \\\"Prop_NamedIconPathDeviceOff_String\\\": \\\"{sample}/icons/headset_sample_status_off.png\\\",\\r\\n320 |       \\\"Prop_NamedIconPathDeviceSearching_String\\\": \\\"Prop_NamedIconPathDeviceOff_String\\\",\\r\\n321 |       \\\"Prop_NamedIconPathDeviceSearchingAlert_String\\\": \\\"Prop_NamedIconPathDeviceOff_String\\\",\\r\\n322 |       \\\"Prop_NamedIconPathDeviceReady_String\\\": \\\"Prop_NamedIconPathDeviceOff_String\\\",\\r\\n323 |       \\\"Prop_NamedIconPathDeviceReadyAlert_String\\\": \\\"Prop_NamedIconPathDeviceOff_String\\\",\\r\\n324 |       \\\"Prop_NamedIconPathDeviceNotReady_String\\\": \\\"Prop_NamedIconPathDeviceOff_String\\\",\\r\\n325 |       \\\"Prop_NamedIconPathDeviceStandby_String\\\": \\\"Prop_NamedIconPathDeviceOff_String\\\",\\r\\n326 |       \\\"Prop_NamedIconPathDeviceAlertLow_String\\\": \\\"Prop_NamedIconPathDeviceOff_String\\\"\\r\\n327 |     },\\r\\n328 |     \\\"Model-v1.0\\\": {\\r\\n329 |       \\\"Alias\\\": \\\"Model-v Defaults\\\",\\r\\n330 |       \\\"Prop_NamedIconPathDeviceAlertLow_String\\\": \\\"{sample}/icons/headset_model1_alertlow.png\\\"\\r\\n331 |     },\\r\\n332 |     \\\"Model-v2.0\\\": {\\r\\n333 |       \\\"Alias\\\": \\\"Model-v1.0\\\",\\r\\n334 |       \\\"Prop_NamedIconPathDeviceAlertLow_String\\\": \\\"{sample}/icons/headset_model2_alertlow.png\\\"\\r\\n335 |     },\\r\\n336 |     \\\"LeftController\\\": {\\r\\n337 |       \\\"Prop_NamedIconPathDeviceOff_String\\\": \\\"{sample}/icons/controller_status_off.png\\\",\\r\\n338 |       \\\"Prop_NamedIconPathDeviceSearching_String\\\": \\\"{sample}/icons/controller_status_searching.gif\\\",\\r\\n339 |       \\\"Prop_NamedIconPathDeviceSearchingAlert_String\\\": \\\"{sample}/icons/controller_status_searching_alert.gif\\\",\\r\\n340 |       \\\"Prop_NamedIconPathDeviceReady_String\\\": \\\"{sample}/icons/controller_status_ready.png\\\",\\r\\n341 |       \\\"Prop_NamedIconPathDeviceReadyAlert_String\\\": \\\"{sample}/icons/controller_status_ready_alert.png\\\",\\r\\n342 |       \\\"Prop_NamedIconPathDeviceNotReady_String\\\": \\\"{sample}/icons/controller_status_error.png\\\",\\r\\n343 |       \\\"Prop_NamedIconPathDeviceStandby_String\\\": \\\"{sample}/icons/controller_status_standby.png\\\",\\r\\n344 |       \\\"Prop_NamedIconPathDeviceAlertLow_String\\\": \\\"{sample}/icons/controller_status_ready_low.png\\\"\\r\\n345 |     },\\r\\n346 |     \\\"RightController\\\": {\\r\\n347 |       \\\"Prop_NamedIconPathDeviceOff_String\\\": \\\"{sample}/icons/controller_status_off.png\\\",\\r\\n348 |       \\\"Prop_NamedIconPathDeviceSearching_String\\\": \\\"{sample}/icons/controller_status_searching.gif\\\",\\r\\n349 |       \\\"Prop_NamedIconPathDeviceSearchingAlert_String\\\": \\\"{sample}/icons/controller_status_searching_alert.gif\\\",\\r\\n350 |       \\\"Prop_NamedIconPathDeviceReady_String\\\": \\\"{sample}/icons/controller_status_ready.png\\\",\\r\\n351 |       \\\"Prop_NamedIconPathDeviceReadyAlert_String\\\": \\\"{sample}/icons/controller_status_ready_alert.png\\\",\\r\\n352 |       \\\"Prop_NamedIconPathDeviceNotReady_String\\\": \\\"{sample}/icons/controller_status_error.png\\\",\\r\\n353 |       \\\"Prop_NamedIconPathDeviceStandby_String\\\": \\\"{sample}/icons/controller_status_standby.png\\\",\\r\\n354 |       \\\"Prop_NamedIconPathDeviceAlertLow_String\\\": \\\"{sample}/icons/controller_status_ready_low.png\\\"\\r\\n355 |     }\\r\\n356 |   }\\r\\n357 | }\\r\\n358 | ```\\r\\n359 | \\r\\n360 | ### localization/localization.json\\r\\n361 | \\r\\n362 | The localization JSON file specifies localization information for the device.\\r\\n363 | \\r\\n364 | Drivers **can** either choose to create new files *for each* localized version, or define them all\\r\\n365 | in `localization/localization.json`\\r\\n366 | \\r\\n367 | This file is also used for providing *user-friendly* names for the devices. For\\r\\n368 | example, `Prop_RegisteredDeviceType_String` for the Index Controllers are `knuckles`. These are then localized\\r\\n369 | in English to `Index Controller`.\\r\\n370 | \\r\\n371 | The keys **can** define localized versions for whatever is exported from your driver through its visible properties (\\r\\n372 | e.g. `Prop_RegisteredDeviceType_String`).\\r\\n373 | \\r\\n374 | #### Defining localization in one file\\r\\n375 | \\r\\n376 | `localization/localization.json` **must** contain a JSON-formatted array, containing objects for each localized version.\\r\\n377 | This object **must** contain:\\r\\n378 | \\r\\n379 | * `language_tag`: a recognized language tag, e.g `en_US`.\\r\\n380 | \\r\\n381 | And any strings the driver exports that the driver wishes to be localized.\\r\\n382 | \\r\\n383 | ```json\\r\\n384 | [\\r\\n385 |   {\\r\\n386 |     \\\"language_tag\\\": \\\"en_US\\\",\\r\\n387 |     \\\"knuckles\\\": \\\"Index Controller\\\",\\r\\n388 |     \\\"knuckles_ev1\\\": \\\"Knuckles (EV1) Controller\\\",\\r\\n389 |     \\\"/input/a\\\": \\\"A Button\\\",\\r\\n390 |     \\\"/input/b\\\": \\\"B Button\\\",\\r\\n391 |     \\\"/input/pinch\\\": \\\"Pinch Gesture\\\",\\r\\n392 |     \\\"/input/finger/index\\\": \\\"Index Finger\\\",\\r\\n393 |     \\\"/input/finger/middle\\\": \\\"Middle Finger\\\",\\r\\n394 |     \\\"/input/finger/ring\\\": \\\"Ring Finger\\\",\\r\\n395 |     \\\"/input/finger/pinky\\\": \\\"Pinky Finger\\\",\\r\\n396 |     \\\"/input/thumbstick\\\": \\\"Thumb Stick\\\"\\r\\n397 |   }\\r\\n398 | ]\\r\\n399 | ```\\r\\n400 | \\r\\n401 | #### Defining localization in multiple files\\r\\n402 | \\r\\n403 | `localization/localization.json` **must** contain a JSON-formatted object, containing language tag keys for each\\r\\n404 | localized version.\\r\\n405 | \\r\\n406 | ```json\\r\\n407 | {\\r\\n408 |   \\\"en_US\\\": \\\"{<driver_name>}/localization/localization_en_us.json\\\"\\r\\n409 | }\\r\\n410 | ```\\r\\n411 | \\r\\n412 | Where `<driver_name>` is the name of the driver. This then expands to an absolute path which the runtime can then load.\\r\\n413 | \\r\\n414 | Each individual file linked to then **must** be a JSON-formatted object.\\r\\n415 | This object **must** contain one key:\\r\\n416 | \\r\\n417 | * `language_tag`: a recognized language tag, e.g `en_us`\\r\\n418 | \\r\\n419 | ```json\\r\\n420 | {\\r\\n421 |   \\\"language_tag\\\": \\\"en_US\\\",\\r\\n422 |   \\\"knuckles\\\": \\\"Index Controller\\\",\\r\\n423 |   \\\"knuckles_ev1\\\": \\\"Knuckles (EV1) Controller\\\",\\r\\n424 |   \\\"/input/a\\\": \\\"A Button\\\",\\r\\n425 |   \\\"/input/b\\\": \\\"B Button\\\",\\r\\n426 |   \\\"/input/pinch\\\": \\\"Pinch Gesture\\\",\\r\\n427 |   \\\"/input/finger/index\\\": \\\"Index Finger\\\",\\r\\n428 |   \\\"/input/finger/middle\\\": \\\"Middle Finger\\\",\\r\\n429 |   \\\"/input/finger/ring\\\": \\\"Ring Finger\\\",\\r\\n430 |   \\\"/input/finger/pinky\\\": \\\"Pinky Finger\\\",\\r\\n431 |   \\\"/input/thumbstick\\\": \\\"Thumb Stick\\\"\\r\\n432 | }\\r\\n433 | ```\\r\\n434 | \\r\\n435 | ### resources/settings/default.vrsettings\\r\\n436 | \\r\\n437 | The `default.vrsettings` file provides default settings values for the driver. The file **should not** be modified by\\r\\n438 | users and should only provide default driver setting values which can then later be configured using the \\r\\n439 | [IVRSettings](#ivrsettings) interface. `IVRSettings` writes updated setting values to `steamvr.vrsettings`.\\r\\n440 | \\r\\n441 | Drivers **should** provide a `default.vrsettings` file to ship with the driver, which **must** be located\\r\\n442 | in `<driver_name>/resources/settings/default.vrsettings`. This file provides a default set of settings which will be\\r\\n443 | used if a setting is not found in `steamvr.vrsettings`.\\r\\n444 | \\r\\n445 | Settings are grouped in driver-defined sections. These sections contain keys and associated setting values. Values can\\r\\n446 | be strings (maximum 4096 characters), floats, integers, or booleans.\\r\\n447 | \\r\\n448 | Drivers **should** be careful when choosing names for sections, as they are global and not namespaced to a specific\\r\\n449 | driver. Drivers **should** prefix their sections with their name to avoid these collisions.\\r\\n450 | \\r\\n451 | A driver **should** specify at least one _section_ (JSON object in the root of the file), with the key\\r\\n452 | name `driver_<my_driver_name>`.\\r\\n453 | \\r\\n454 | While the driver can add any custom keys in this section, there are some keys that are reserved for use by the runtime:\\r\\n455 | \\r\\n456 | * `enable` - A boolean value that determines whether the driver is enabled or not.\\r\\n457 |     * This is a special value, and can be modified by the user through the SteamVR settings\\r\\n458 |       UI (`SteamVR Settings > Startup/Shutdown > Manage addons`).\\r\\n459 |     * This is defaulted to `true` if not specified.\\r\\n460 | * `loadPriority` - An integer value that determines the order in which to load drivers.\\r\\n461 |     * The order of priority is descending (drivers with higher integer `loadPriority` values will be loaded first).\\r\\n462 |     * This is defaulted to `0` if not specified.\\r\\n463 |     * All drivers that ship with SteamVR have a `loadPriority` of `0`.\\r\\n464 | * `blocked_by_safe_mode` - A boolean value that determines whether the driver is blocked from loading when SteamVR is in\\r\\n465 |   safe mode.\\r\\n466 |     * This is defaulted to `false` if not specified. This **should** be set to false (so the driver is blocked by safe\\r\\n467 |       mode) for 3rd party drivers. Having this value set to `true` will mean if the driver is crashing on startup, the\\r\\n468 |       user will be unable to use SteamVR without uninstalling the driver.\\r\\n469 | \\r\\n470 | #### Example\\r\\n471 | \\r\\n472 | ```json\\r\\n473 | {\\r\\n474 |   \\\"driver_mydriver\\\": {\\r\\n475 |     \\\"enable\\\": true,\\r\\n476 |     \\\"loadPriority\\\": 100,\\r\\n477 |     \\\"blocked_by_safe_mode\\\": false,\\r\\n478 |     \\\"my_custom_setting\\\": \\\"my_custom_value\\\"\\r\\n479 |   },\\r\\n480 |   \\\"driver_mydriver_customsettings\\\": {\\r\\n481 |     \\\"my_custom_setting2\\\": \\\"my_custom_value2\\\"\\r\\n482 |   }\\r\\n483 | }\\r\\n484 | ```\\r\\n485 | \\r\\n486 | ## Icons\\r\\n487 | \\r\\n488 | If an icon is to be displayed in SteamVR, it **must** be one of the following sizes,\\r\\n489 | depending on what type of device it is:\\r\\n490 | \\r\\n491 | * HMD: 50x32 or 100x64 (see below) png/gif\\r\\n492 | * Other: 32x32 or 64x64 (see below) png/gif\\r\\n493 | \\r\\n494 | Append `@2x` to the end of the file name to have a 100x64 HMD icon or 64x64 device icon.\\r\\n495 | Otherwise, a 50x32 or 32x32 icon size **will** be used.\\r\\n496 | \\r\\n497 | For example:\\r\\n498 | \\r\\n499 | * `my_hmd_icon.png` - 50x32 icon **must** be used.\\r\\n500 | * `my_hmd_icon@2x.png` - 100x64 icon **must** be used.\\r\\n</content>\\n<notice>Showing only 500 of 3733 total lines. Use start_line and end_line if you need to read more</notice>\\n</file>\\n\\n<environment_details>\\n# VSCode Visible Files\\nOpenVR_Modifications.md\\n\\n# VSCode Open Tabs\\nREADME.md,OpenVR_Modifications.md,build.bat,src/vrcore/pathtools_public_fixed.h,src/vrcore/sharedlibtools_public_fixed.cpp,src/vrcore/strtools_public_fixed.cpp,src/vrcore/pathtools_public.h,src/vrcore/vrpathregistry_public_fixed.cpp,headers/openvr_capi.h,.gitignore,headers/openvr_driver.h,headers/openvr.h,src/openvr_api_public.cpp,src/vrcore/pathtools_public_fixed.cpp,openvr_api.vcxproj\\n\\n# Current Time\\n4/12/2025, 4:01:35 PM (America/Los_Angeles, UTC-7:00)\\n\\n# Current Context Size (Tokens)\\n17,236 (9%)\\n\\n# Current Cost\\n$0.08\\n\\n# Current Mode\\n<slug>ask</slug>\\n<name>Ask</name>\\n\\n\\nNOTE: You are currently in 'Ask' mode, which does not allow write operations. To write files, the user will need to switch to a mode that supports file writing, such as 'Code' mode.\\n</environment_details>\",\"tokensIn\":4,\"tokensOut\":84,\"cacheWrites\":9449,\"cacheReads\":17163,\"cost\":0.04185464999999999}"},{"ts":1744498898233,"type":"say","say":"text","text":"Let me continue reading the Driver API documentation to better understand how to implement a custom driver solution.","partial":false},{"ts":1744498898837,"type":"ask","ask":"tool","text":"{\"tool\":\"readFile\",\"path\":\"docs/Driver_API_Documentation.md\",\"isOutsideWorkspace\":false,\"content\":\"c:\\\\Users\\\\decid\\\\Documents\\\\projects\\\\openvr-resilient\\\\docs\\\\Driver_API_Documentation.md\",\"reason\":\" (lines 500-1000)\"}","partial":false},{"ts":1744498951217,"type":"say","say":"api_req_started","text":"{\"request\":\"[read_file for 'docs/Driver_API_Documentation.md'] Result:\\n\\n<file><path>docs/Driver_API_Documentation.md</path>\\n<content lines=\\\"500-1000\\\">\\n 500 | * `my_hmd_icon@2x.png` - 100x64 icon **must** be used.\\r\\n 501 | \\r\\n 502 | An icon which is not a supported size **will** be cropped from the top-left.\\r\\n 503 | \\r\\n 504 | An icon **can** choose to animate using a gif format. For example, it is typical for tracked controllers to have a\\r\\n 505 | breathing animation when they are on, but have not established tracking.\\r\\n 506 | \\r\\n 507 | Icons **must** be a colored green-blue gradient across the image. Icons **will** be formatted appropriately to include\\r\\n 508 | this gradient. These gradients are generated by the runtime, and are placed into the same folder\\r\\n 509 | the icon is in, with  `.b4bfb144` appended to the filename.\\r\\n 510 | \\r\\n 511 | ### Setting icons\\r\\n 512 | \\r\\n 513 | To set icons, they **must** be set as a property of the device. This can either be done in\\r\\n 514 | the `driver.vrdrivermanifest` file or through setting the properties programmatically.\\r\\n 515 | See [Device Properties](#device-properties).\\r\\n 516 | \\r\\n 517 | A list of icons that **can** be set are defined below:\\r\\n 518 | \\r\\n 519 | * `Prop_NamedIconPathDeviceOff_String` - The device is off.\\r\\n 520 | * `Prop_NamedIconPathDeviceSearching_String` - The device is on, but does not have tracking established.\\r\\n 521 | * `Prop_NamedIconPathDeviceSearchingAlert_String` - The device is on, does not have tracking established and has\\r\\n 522 |   received a warning.\\r\\n 523 | * `Prop_NamedIconPathDeviceReady_String` - The device is on, tracking and working nominally.\\r\\n 524 | * `Prop_NamedIconPathDeviceReadyAlert_String` - The device is on and ready to use, but needs to inform the user of\\r\\n 525 |   something (E.g. firmware update).\\r\\n 526 | * `Prop_NamedIconPathDeviceNotReady_String` - The device is on, but not ready to start up and establish tracking.\\r\\n 527 | * `Prop_NamedIconPathDeviceStandby_String` - The device has been put to sleep due to system inactivity.\\r\\n 528 | * `Prop_NamedIconPathDeviceStandbyAlert_String` - The device is in standby, but needs to inform the user of something (\\r\\n 529 |   E.g. firmware update).\\r\\n 530 | * `Prop_NamedIconPathDeviceAlertLow_String` - The device is working, but has a low battery. This is\\r\\n 531 |   when `Prop_DeviceBatteryPercentage_Float` is less than 15%. See [Device Properties](#device-properties).\\r\\n 532 | * `Prop_NamedIconPathTrackingReferenceDeviceOff_String` - The tracking reference device (i.e. basestation) is not yet\\r\\n 533 |   detected or has been switched off.\\r\\n 534 | * `Prop_NamedIconPathControllerLeftDeviceOff_String` - The left hand controller is off.\\r\\n 535 | * `Prop_NamedIconPathControllerRightDeviceOff_String` - The right hand controller is off.\\r\\n 536 | \\r\\n 537 | If a key is not matched, the `{system}/icons/invalid_status.png` icon **will** be used.\\r\\n 538 | \\r\\n 539 | ### Updating Icons\\r\\n 540 | \\r\\n 541 | The icon currently used to represent a device **can** be updated in two ways: by the runtime when\\r\\n 542 | a device ([submits a pose](#poses)) or the driver sending an event to update an icon.\\r\\n 543 | \\r\\n 544 | In a pose, a combination of setting these members:\\r\\n 545 | \\r\\n 546 |     ETrackingResult result\\r\\n 547 |     bool poseIsValid\\r\\n 548 |     bool deviceIsConnected\\r\\n 549 | \\r\\n 550 | Will update the icons to represent the current state of the device:\\r\\n 551 | \\r\\n 552 | * `Prop_NamedIconPathDeviceOff_String`\\r\\n 553 |     * `deviceIsConnected` is false.\\r\\n 554 | * `Prop_NamedIconPathDeviceSearching_String`\\r\\n 555 |     * `deviceIsConnected` is true.\\r\\n 556 |     * `poseIsValid` is false.\\r\\n 557 |     * The device previously connected, but then disconnected.\\r\\n 558 | * `Prop_NamedIconPathDeviceReady_String`\\r\\n 559 |     * `deviceIsConnected` is true.\\r\\n 560 |     * `poseIsValid` is true.\\r\\n 561 | * `Prop_NamedIconPathDeviceStandby_String`\\r\\n 562 |     * The orientation of the device's pose has remained close to constant.\\r\\n 563 |     * The `/proximity` boolean input path is `false`. For this to be used, `Prop_ContainsProximitySensor_Bool` **must** be set to true.\\r\\n 564 | * `Prop_NamedIconPathDeviceAlertLow_String`\\r\\n 565 |     * `deviceIsConnected` is true.\\r\\n 566 |     * `poseIsValid` is true.\\r\\n 567 |     * `result` is `TrackingResult_Running_OK`.\\r\\n 568 |     * `Prop_DeviceBatteryPercentage_Float` is less than 0.15.\\r\\n 569 | \\r\\n 570 | ## Device Classes\\r\\n 571 | \\r\\n 572 | Devices in OpenVR **must** have a class associated with them. The class of the device defines what sort of device is\\r\\n 573 | being exposed to the runtime. The device classes available are defined in the `ETrackedDeviceClass` enum and the class\\r\\n 574 | of a device is provided to the runtime through `IVRServerDriverHost::TrackedDeviceAdded`.\\r\\n 575 | \\r\\n 576 | * `TrackedDeviceClass_HMD` - Head-Mounted Displays. E.g. Index HMD.\\r\\n 577 | * `TrackedDeviceClass_Controller` - Tracked controllers. E.g. Index controllers.\\r\\n 578 | * `TrackedDeviceClass_GenericTracker` - Generic trackers, similar to controllers. E.g. Vive trackers. An\\r\\n 579 |   additional `manage trackers` interface in SteamVR **will** be shown for the user to configure where and how this\\r\\n 580 |   tracker is\\r\\n 581 |   used. Note: Tracker roles are not configurable by the driver.\\r\\n 582 | * `TrackedDeviceClass_TrackingReference` - Camera and base stations that serve as tracking reference points. E.g.\\r\\n 583 |   Basestation 2.0.\\r\\n 584 | * `TrackedDeviceClass_DisplayRedirect` - Accessories that aren't necessarily tracked themselves, but may redirect video\\r\\n 585 |   output from other tracked devices.\\r\\n 586 | \\r\\n 587 | ### Controller roles\\r\\n 588 | \\r\\n 589 | Devices of `TrackedDeviceClass_Controller` **must** have a role associated with them. The role identifies how the\\r\\n 590 | controller is used by the user and how the device will behave within the runtime. The roles are defined in\\r\\n 591 | the `ETrackedControllerRole` enum.\\r\\n 592 | \\r\\n 593 | * `TrackedControllerRole_LeftHand` - Tracked device associated with the left hand.\\r\\n 594 | * `TrackedControllerRole_RightHand` - Tracked device associated with the right hand.\\r\\n 595 | * `TrackedControllerRole_OptOut` - Tracked device is opting out of left/right hand selection.\\r\\n 596 | * `TrackedControllerRole_Treadmill` - Tracked device is a treadmill or other locomotion device that is to be used in\\r\\n 597 |   conjunction with the handed controllers.\\r\\n 598 | * `TrackedControllerRole_Stylus` - Tracked device is a stylus\\r\\n 599 | \\r\\n 600 | At any given time, there will be one and only one _active_ controller associated with\\r\\n 601 | a `TrackedControllerRole_LeftHand`, `TrackedControllerRole_RightHand` and `TrackedControllerRole_Treadmill` role.\\r\\n 602 | \\r\\n 603 | Applications **will not** receive input from multiple controllers assigned to the\\r\\n 604 | same `TrackedControllerRole_LeftHand`, `TrackedControllerRole_RightHand` and `TrackedControllerRole_Treadmill` roles at\\r\\n 605 | one time.\\r\\n 606 | \\r\\n 607 | The active device for each role is decided by the runtime, but can be influenced by the device\\r\\n 608 | through setting `Prop_ControllerHandSelectionPriority_Int32`.\\r\\n 609 | \\r\\n 610 | `TrackedControllerRole_Treadmill` **can** be used at the same time as `TrackedControllerRole_LeftHand`\\r\\n 611 | and `TrackedControllerRole_RightHand`. Additional UI is shown to the user for how to\\r\\n 612 | configure `TrackedControllerRole_Treadmill` bindings.\\r\\n 613 | \\r\\n 614 | If both an _input_ from `TrackedControllerRole_Treadmill` and an _input_ from a handed controller are assigned to the\\r\\n 615 | same _action_ in an application, SteamVR **will** use the input with the greatest absolute value.\\r\\n 616 | \\r\\n 617 | ### Trackers (Full body Tracking)\\r\\n 618 | \\r\\n 619 | Drivers **can** expose device(s) of class `TrackedDeviceClass_GenericTracker` to expose trackers to SteamVR. These\\r\\n 620 | trackers can then be used by the user for features such as full-body tracking, object tracking and more.\\r\\n 621 | \\r\\n 622 | Tracker roles can be set by the user in the \\\"Manage Trackers\\\" section of SteamVR.\\r\\n 623 | \\r\\n 624 | Tracker roles are stored in `steamvr.vrsettings`, under the `vr::k_pch_Trackers_Section` (\\\"trackers\\\") section. Each key\\r\\n 625 | of the section has the formatting: `/devices/<driver_name>/<device_serial_number>`, with a string value of one of the\\r\\n 626 | tracker roles below.\\r\\n 627 | \\r\\n 628 | In most circumstances, SteamVR expects users to be the ones to assign roles to individual trackers, and so SteamVR\\r\\n 629 | provides the \\\"Manage Trackers\\\" UI in settings.\\r\\n 630 | However, a driver **can** write to the `trackers` section in the `steamvr.vrsettings` file using\\r\\n 631 | the [IVRSettings](#ivrsettings) interface as a way to modify each tracker's role.\\r\\n 632 | \\r\\n 633 | The list of available tracker roles that can be set by the user are:\\r\\n 634 | \\r\\n 635 | * `TrackerRole_Handed`\\r\\n 636 | * `TrackerRole_LeftFoot`\\r\\n 637 | * `TrackerRole_RightFoot`\\r\\n 638 | * `TrackerRole_LeftShoulder`\\r\\n 639 | * `TrackerRole_RightShoulder`\\r\\n 640 | * `TrackerRole_LeftElbow`\\r\\n 641 | * `TrackerRole_RightElbow`\\r\\n 642 | * `TrackerRole_LeftKnee`\\r\\n 643 | * `TrackerRole_RightKnee`\\r\\n 644 | * `TrackerRole_Waist`\\r\\n 645 | * `TrackerRole_Chest`\\r\\n 646 | * `TrackerRole_Camera`\\r\\n 647 | * `TrackerRole_Keyboard`\\r\\n 648 | \\r\\n 649 | Trackers **can** have input profiles, which are set depending on the current role of the tracker.\\r\\n 650 | See [Input Profiles](#input-profiles) for more information on the `tracker_types` section.\\r\\n 651 | \\r\\n 652 | # Driver Structure\\r\\n 653 | \\r\\n 654 | A runtime expects driver code to be compiled into a _shared library_ (.dll or .so).\\r\\n 655 | \\r\\n 656 | Having the driver compiled to a shared library means that it can be loaded into SteamVR at runtime, rather than compile\\r\\n 657 | time, meaning that SteamVR does not need to have explicit support for each driver that it interacts with and can load\\r\\n 658 | drivers dynamically.\\r\\n 659 | \\r\\n 660 | The resultant driver shared library **must** have the `openvr_api` static library compiled into it.\\r\\n 661 | \\r\\n 662 | * The static libraries can be found in [openvr/lib](https://github.com/ValveSoftware/openvr/tree/master/lib)\\r\\n 663 |     * Use the correct platform and architecture for what you are targeting.\\r\\n 664 | \\r\\n 665 | Loading a driver involves pointing the runtime to a specific folder where the driver binary is stored.\\r\\n 666 | \\r\\n 667 | Your driver binary **must** be located at `<my_driver_name>/bin/<platform><arch>/driver_<my_driver_name>.dll/so`.\\r\\n 668 | \\r\\n 669 | Drivers **must not** use both the `openvr.h` and `openvr_driver.h` in a single binary. Doing so will cause the runtime\\r\\n 670 | to crash.\\r\\n 671 | \\r\\n 672 | OpenVR interfaces are defined in the API as abstract classes with pure virtual methods. This means that if\\r\\n 673 | a driver wishes to implement a specific interface, they **must** publicly inherit the interface, then provide\\r\\n 674 | definitions for every method declared in that interface.\\r\\n 675 | \\r\\n 676 | The next section documents interfaces and functions of the OpenVR API.\\r\\n 677 | \\r\\n 678 | ## HmdDriverFactory\\r\\n 679 | \\r\\n 680 | Drivers are loaded as shared libraries (.dll or .so) into the runtime, and **must** export a `HmdDriverFactory` function\\r\\n 681 | from the shared library. This function becomes the entry-point for every driver.\\r\\n 682 | \\r\\n 683 | ```c++\\r\\n 684 | extern \\\"C\\\" __declspec( dllexport ) \\r\\n 685 | void *HmdDriverFactory( const char *pInterfaceName, int *pReturnCode );\\r\\n 686 | ```\\r\\n 687 | \\r\\n 688 | If `HmdDriverFactory` is not found, the runtime **will** return `VRInitError_Init_FactoryNotFound`.\\r\\n 689 | \\r\\n 690 | The runtime calls this function multiple times, to find which interfaces and versions of interfaces the driver supports.\\r\\n 691 | The driver **must only** return a pointer to its interface implementation when `pInterfaceName` matches the interface\\r\\n 692 | and version of the interface implemented.\\r\\n 693 | \\r\\n 694 | `Ixxxxx_Version` are constants defined in the OpenVR API that are set to the current version of the interface\\r\\n 695 | implemented in the API version you are using. They **will** eventually match one of the `pInterfaceName` calls.\\r\\n 696 | \\r\\n 697 | Two common interfaces a driver **might** return pointers to are implementations\\r\\n 698 | of [IServerTrackedDeviceProvider](#IServerTrackedDeviceProvider) and [IVRWatchdogProvider](#ivrwatchdogprovider).\\r\\n 699 | \\r\\n 700 | ```c++\\r\\n 701 | #include <openvr_driver.h>\\r\\n 702 | \\r\\n 703 | class MyServerTrackedDeviceProvider : public vr::IServerTrackedDeviceProvider {\\r\\n 704 |     ...\\r\\n 705 | }\\r\\n 706 | \\r\\n 707 | class MyWatchdogProvider : public vr::IVRWatchdogProvider {\\r\\n 708 |     ...\\r\\n 709 | }\\r\\n 710 | \\r\\n 711 | MyServerTrackedDeviceProvider device_provider;\\r\\n 712 | MyWatchdogProvider watchdog_provider;\\r\\n 713 | \\r\\n 714 | extern \\\"C\\\" __declspec( dllexport ) \\r\\n 715 | void *HmdDriverFactory( const char *pInterfaceName, int *pReturnCode )\\r\\n 716 | {\\r\\n 717 | \\tif( 0 == strcmp( IServerTrackedDeviceProvider_Version, pInterfaceName ) )\\r\\n 718 | \\t{\\r\\n 719 | \\t\\treturn &device_provider; //return a pointer to your vr::IServerTrackedDeviceProvider object\\r\\n 720 | \\t}\\r\\n 721 | \\tif( 0 == strcmp( IVRWatchdogProvider_Version, pInterfaceName ) )\\r\\n 722 | \\t{\\r\\n 723 | \\t\\treturn &watchdog_provider; //return a pointer to your vr::IVRWatchdogProvider object\\r\\n 724 | \\t}\\r\\n 725 | \\r\\n 726 | \\r\\n 727 | \\tif( pReturnCode )\\r\\n 728 | \\t\\t*pReturnCode = VRInitError_Init_InterfaceNotFound;\\r\\n 729 | \\r\\n 730 | \\treturn NULL;\\r\\n 731 | }\\r\\n 732 | ```\\r\\n 733 | \\r\\n 734 | ## IServerTrackedDeviceProvider\\r\\n 735 | \\r\\n 736 | An `IServerTrackedDeviceProvider` is an interface that is implemented by a driver and its methods are called by the\\r\\n 737 | runtime when the state of the runtime changes. It **must** be a global, single instance and exist for the duration\\r\\n 738 | of the runtime session.\\r\\n 739 | \\r\\n 740 | An `IServerTrackedDeviceProvider` **can** interact\\r\\n 741 | with [IVRServerDriverHost](#IVRServerDriverHost), an interface\\r\\n 742 | implemented by the runtime that provides useful methods to retrieve and update state from the runtime.\\r\\n 743 | \\r\\n 744 | `IServerTrackedDeviceProvider` **does not** implement any devices itself, but **should**\\r\\n 745 | initialize a [ITrackedDeviceServerDriver](#ITrackedDeviceServerDriver) for each device it wants to add to the\\r\\n 746 | runtime.\\r\\n 747 | \\r\\n 748 | See [IVRServerDriverHost](#IVRServerDriverHost) for how to add a device to the runtime.\\r\\n 749 | \\r\\n 750 | <br/>\\r\\n 751 | \\r\\n 752 | ```c++\\r\\n 753 | virtual EVRInitError Init( IVRDriverContext *pDriverContext ) = 0;\\r\\n 754 | ```\\r\\n 755 | \\r\\n 756 | `Init` is called before any other methods of the class are called. `Init` **may** choose to initialize device drivers,\\r\\n 757 | and **must** return `VRInitError_None` if the call is successful.\\r\\n 758 | \\r\\n 759 | Returning anything else than `VRInitError_None` **will** cause the driver and shared library to be unloaded\\r\\n 760 | from `vrserver.exe`.\\r\\n 761 | \\r\\n 762 | The implementation of `IServerTrackedDeviceProvider` **should** keep resource usage to a minimum before `Init` is\\r\\n 763 | called.\\r\\n 764 | \\r\\n 765 | * `IVRDriverContext *pDriverContext` - Contains pointers to interfaces implemented by the runtime. The\\r\\n 766 |   macro `VR_INIT_SERVER_DRIVER_CONTEXT` provided in the OpenVR API **can** be used to initialize this context.\\r\\n 767 | \\r\\n 768 | The implementation of `IServerTrackedDeviceProvider` **must not** call any methods in the runtime (such as\\r\\n 769 | in [IVRServerDriverHost](#IVRServerDriverHost)) until `Init` has been called and the server driver context has been\\r\\n 770 | initialized. See example at the end of the section.\\r\\n 771 | \\r\\n 772 | <br/>\\r\\n 773 | \\r\\n 774 | ```c++\\r\\n 775 | virtual void Cleanup() = 0;\\r\\n 776 | ```\\r\\n 777 | \\r\\n 778 | `Cleanup` is called right before the driver is unloaded.\\r\\n 779 | \\r\\n 780 | `Cleanup` **should** release any resources\\r\\n 781 | that `IServerTrackedDeviceProvider` or child `ITrackedDeviceServerDriver` have acquired throughout the session.\\r\\n 782 | \\r\\n 783 | <br/>\\r\\n 784 | \\r\\n 785 | ```c++\\r\\n 786 | virtual const char * const *GetInterfaceVersions() = 0;\\r\\n 787 | ```\\r\\n 788 | \\r\\n 789 | `GetInterfaceVersions` **must** return a pointer to an array of strings that represent the versions of interfaces used\\r\\n 790 | in this driver.\\r\\n 791 | \\r\\n 792 | The helper variable `k_InterfaceVersions` in the OpenVR API **should** be returned directly from this method.\\r\\n 793 | This variable contains versions of the interfaces you are compiling your driver against.\\r\\n 794 | \\r\\n 795 |     IVRSettings_Version\\r\\n 796 |     ITrackedDeviceServerDriver_Version\\r\\n 797 |     IVRDisplayComponent_Version\\r\\n 798 |     IVRDriverDirectModeComponent_Version\\r\\n 799 |     IVRCameraComponent_Version\\r\\n 800 |     IServerTrackedDeviceProvider_Version\\r\\n 801 |     IVRWatchdogProvider_Version\\r\\n 802 |     IVRVirtualDisplay_Version\\r\\n 803 |     IVRDriverManager_Version\\r\\n 804 |     IVRResources_Version\\r\\n 805 |     IVRCompositorPluginProvider_Version\\r\\n 806 | \\r\\n 807 | <br/>\\r\\n 808 | \\r\\n 809 | ```c++\\r\\n 810 | virtual void RunFrame() = 0;\\r\\n 811 | ```\\r\\n 812 | \\r\\n 813 | `RunFrame` is called *directly* in the main loop of `vrserver.exe`. As a result, it **should not** perform calls that\\r\\n 814 | might block. It is called on every frame.\\r\\n 815 | \\r\\n 816 | It is strongly recommended for a driver to use their own thread for performing work that might need to be done at a\\r\\n 817 | regular interval.\\r\\n 818 | \\r\\n 819 | A driver **should** (and perhaps only) poll for events using `RunFrame`. See [events](#events).\\r\\n 820 | \\r\\n 821 | <br/>\\r\\n 822 | \\r\\n 823 | ```c++\\r\\n 824 | virtual bool ShouldBlockStandbyMode() = 0;\\r\\n 825 | ```\\r\\n 826 | \\r\\n 827 | `ShouldBlockStandbyMode` is deprecated, and will never be called in newer versions of SteamVR. Drivers **must**\\r\\n 828 | implement\\r\\n 829 | this function (because it is pure virtual), but the return value has no effect on behavior.\\r\\n 830 | \\r\\n 831 | <br/>\\r\\n 832 | \\r\\n 833 | ```c++\\r\\n 834 | virtual void EnterStandby() = 0;\\r\\n 835 | ```\\r\\n 836 | \\r\\n 837 | `EnterStandby` is called when the whole system is entering standby mode.\\r\\n 838 | \\r\\n 839 | This is after a user-configured time after which the system becomes inactive (HMD not being worn, controllers off or not\\r\\n 840 | used, etc.).\\r\\n 841 | \\r\\n 842 | The driver **should** switch itself into whatever sort of low-power state it has.\\r\\n 843 | \\r\\n 844 | <br/>\\r\\n 845 | \\r\\n 846 | ```c++\\r\\n 847 | virtual void LeaveStandby() = 0;\\r\\n 848 | ```\\r\\n 849 | \\r\\n 850 | `LeaveStandby` is called when the whole system is leaving Standby mode. The driver **should** switch itself back to full\\r\\n 851 | operation.\\r\\n 852 | \\r\\n 853 | ### Example\\r\\n 854 | \\r\\n 855 | ```c++\\r\\n 856 | class MyDeviceProvider : public IServerTrackedDeviceProvider\\r\\n 857 | {\\r\\n 858 | public:\\r\\n 859 |     virtual EVRInitError Init( vr::IVRDriverContext *pDriverContext )\\r\\n 860 |     {\\r\\n 861 |         VR_INIT_SERVER_DRIVER_CONTEXT( pDriverContext );\\r\\n 862 | \\r\\n 863 |         m_pMyHmdDevice = new MyHmdDeviceDriver();\\r\\n 864 |         m_pMyControllerDevice = new MyControllerDriver();\\r\\n 865 | \\r\\n 866 |         //see IVRServerDriverHost - notify the runtime that our driver wishes to add two devices to the session\\r\\n 867 |         vr::VRServerDriverHost()->TrackedDeviceAdded( \\\"MyHMD1\\\", vr::TrackedDeviceClass_HMD, m_pMyHmdDevice );\\r\\n 868 |         vr::VRServerDriverHost()->TrackedDeviceAdded( \\\"MyController1\\\", vr::TrackedDeviceClass_Controller, m_pMyControllerDevice );\\r\\n 869 | \\r\\n 870 |         return VRInitError_None;\\r\\n 871 |     }\\r\\n 872 | \\r\\n 873 |     virtual void Cleanup() \\r\\n 874 |     {\\r\\n 875 |         delete m_pMyHmdDevice;\\r\\n 876 |         m_pMyHmdDevice = NULL;\\r\\n 877 |         delete m_pMyControllerDevice;\\r\\n 878 |         m_pMyControllerDevice = NULL;\\r\\n 879 |     }\\r\\n 880 | \\r\\n 881 |     virtual const char * const *GetInterfaceVersions() { return vr::k_InterfaceVersions; }\\r\\n 882 |     virtual void MyRunFrame() {}\\r\\n 883 |     virtual bool ShouldBlockStandbyMode()  { return false; } //never called.\\r\\n 884 |     virtual void EnterStandby()  {}\\r\\n 885 |     virtual void LeaveStandby()  {}\\r\\n 886 | \\r\\n 887 | private:\\r\\n 888 |     MyHmdDeviceDriver *m_pMyHmdDevice = nullptr;\\r\\n 889 |     MyControllerDriver *m_pMyControllerDevice = nullptr;\\r\\n 890 | };\\r\\n 891 | ```\\r\\n 892 | \\r\\n 893 | ## ITrackedDeviceServerDriver\\r\\n 894 | \\r\\n 895 | `ITrackedDeviceServerDriver` represents a singular device in the *driver*.\\r\\n 896 | \\r\\n 897 | <br/>\\r\\n 898 | \\r\\n 899 | ```c++\\r\\n 900 | virtual EVRInitError Activate( uint32_t unObjectId ) = 0;\\r\\n 901 | ```\\r\\n 902 | \\r\\n 903 | `Activate` is called after the driver makes a call to `IVRServerDriverHost::TrackedDeviceAdded`.\\r\\n 904 | \\r\\n 905 | Resource usage should be kept to a minimum until this method has been called by the runtime.\\r\\n 906 | \\r\\n 907 | Devices **should not** make any calls to the runtime until `Activate()` has been called.\\r\\n 908 | \\r\\n 909 | * `uint32_t unObjectId` - The device's id. This is unique across SteamVR and is used to get and update various state and\\r\\n 910 |   properties relating to the device, such as [poses](#Poses) and [properties](#device-properties).\\r\\n 911 | \\r\\n 912 | <br/>\\r\\n 913 | \\r\\n 914 | ```c++\\r\\n 915 | virtual void Deactivate() = 0;\\r\\n 916 | ```\\r\\n 917 | \\r\\n 918 | `Deactivate` is called when the device is needed to be deactivated, either from SteamVR closing or the system switching\\r\\n 919 | between HMDs, if this device class represents the currently active HMD.\\r\\n 920 | \\r\\n 921 | The device  **should** free whatever resources it has acquired when this method is called by the runtime.\\r\\n 922 | \\r\\n 923 | Any valid calls the device can make to various runtime-implemented interfaces are guaranteed to be valid\\r\\n 924 | until `Deactivate` is called. The device **must not** call any of these interfaces after the device has returned from\\r\\n 925 | this method, as they are not guaranteed to be valid past this point.\\r\\n 926 | \\r\\n 927 | `IServerTrackedDeviceProvider::Cleanup` **will** be called after this method has been called on each device currently\\r\\n 928 | added to the runtime.\\r\\n 929 | \\r\\n 930 | <br/>\\r\\n 931 | \\r\\n 932 | ```c++\\r\\n 933 | virtual void EnterStandby() = 0;\\r\\n 934 | ```\\r\\n 935 | \\r\\n 936 | `EnterStandby` is called when the device should enter standby mode. This occurs when the user requests the device to\\r\\n 937 | be turned off, when the system is entering standby mode, or when the system shuts down.\\r\\n 938 | \\r\\n 939 | The device should switch into a lower power state or turn off.\\r\\n 940 | \\r\\n 941 | <br/>\\r\\n 942 | \\r\\n 943 | ```c++\\r\\n 944 | virtual void *GetComponent( const char *pchComponentNameAndVersion ) = 0;\\r\\n 945 | ```\\r\\n 946 | \\r\\n 947 | `GetComponent` is called on activation and the device **should** return whatever components it has for device-specific\\r\\n 948 | functionality. If the component requested does not exist on the device, the device **must** return NULL from this\\r\\n 949 | method.\\r\\n 950 | \\r\\n 951 | * `const char *pchComponentNameAndVersion` - The component name and version to match against. The possible options are\\r\\n 952 |   kept as strings in the OpenVR header. The name and versions of the interfaces you are currently targeting (the ones\\r\\n 953 |   you are implementing) and can return from this method are listed below:\\r\\n 954 |     * `IVRDisplayComponent` - A generic display component on a single tracked device. If drivers do not need to access\\r\\n 955 |       the display directly or are not a virtual display, use this.\\r\\n 956 |     * `IVRDriverDirectModeComponent` - This component is used for drivers that implement direct mode entirely on their\\r\\n 957 |       own without allowing the VR Compositor to own the window/device.\\r\\n 958 |     * `IVRCameraComponent` - Represents camera one or more cameras on the device\\r\\n 959 | \\r\\n 960 | See [Device Components](#Device-Components) for more information on device components.\\r\\n 961 | \\r\\n 962 | ```c++\\r\\n 963 | virtual void *GetComponent(const char *pchComponentNameAndVersion) override {\\r\\n 964 |   if (!_stricmp(pchComponentNameAndVersion, vr::IVRVirtualDisplay_Version)) {\\r\\n 965 |     return &m_myVirtualDisplay;\\r\\n 966 |   }\\r\\n 967 |         \\r\\n 968 |   if (!_stricmp(pchComponentNameAndVersion, vr::IVRCameraComponent_Version)) {\\r\\n 969 |     return &m_myCameraComponent;\\r\\n 970 |   }\\r\\n 971 |   \\r\\n 972 |   return nullptr;\\r\\n 973 | }\\r\\n 974 | ```\\r\\n 975 | \\r\\n 976 | <br/>\\r\\n 977 | \\r\\n 978 | ```c++\\r\\n 979 | virtual void DebugRequest( const char *pchRequest, char *pchResponseBuffer, uint32_t unResponseBufferSize ) = 0;\\r\\n 980 | ```\\r\\n 981 | \\r\\n 982 | `DebugRequest` is called when the application requests a debug action from the device. The device **should** respond to\\r\\n 983 | the\\r\\n 984 | request in the buffer provided.\\r\\n 985 | \\r\\n 986 | What is sent from the application to the device is up to the application and device to handle, as is the response.\\r\\n 987 | \\r\\n 988 | * `const char *pchRequest` - The request string. The device **should** respond to the request in the buffer provided.\\r\\n 989 | * `char *pchResponseBuffer` - The buffer to write the response to.\\r\\n 990 | * `uint32_t unResponseBufferSize` - The size of the buffer provided.\\r\\n 991 | \\r\\n 992 | <br/>\\r\\n 993 | \\r\\n 994 | ```c++\\r\\n 995 | virtual DriverPose_t GetPose() = 0;\\r\\n 996 | ```\\r\\n 997 | \\r\\n 998 | This method is deprecated and is not called by the runtime. The device **must** implement this method, but the return\\r\\n 999 | value has no effect on behavior.\\r\\n1000 | \\r\\n</content>\\n</file>\\n\\n<environment_details>\\n# VSCode Visible Files\\ndocs\\\\Driver_API_Documentation.md\\n\\n# VSCode Open Tabs\\nREADME.md,OpenVR_Modifications.md,docs/Driver_API_Documentation.md,build.bat,src/vrcore/pathtools_public_fixed.h,src/vrcore/sharedlibtools_public_fixed.cpp,src/vrcore/strtools_public_fixed.cpp,src/vrcore/pathtools_public.h,src/vrcore/vrpathregistry_public_fixed.cpp,headers/openvr_capi.h,.gitignore,headers/openvr_driver.h,headers/openvr.h,src/openvr_api_public.cpp,src/vrcore/pathtools_public_fixed.cpp,openvr_api.vcxproj\\n\\n# Current Time\\n4/12/2025, 4:02:31 PM (America/Los_Angeles, UTC-7:00)\\n\\n# Current Context Size (Tokens)\\n26,700 (13%)\\n\\n# Current Cost\\n$0.12\\n\\n# Current Mode\\n<slug>ask</slug>\\n<name>Ask</name>\\n\\n\\nNOTE: You are currently in 'Ask' mode, which does not allow write operations. To write files, the user will need to switch to a mode that supports file writing, such as 'Code' mode.\\n</environment_details>\",\"tokensIn\":4,\"tokensOut\":102,\"cacheWrites\":8708,\"cacheReads\":26612,\"cost\":0.0421806}"},{"ts":1744498954639,"type":"say","say":"text","text":"Let me also check the openvr_driver.h file to understand the driver API structure better, particularly focusing on how IMU data might be accessed or exposed through a custom driver.","partial":false},{"ts":1744498955808,"type":"ask","ask":"tool","text":"{\"tool\":\"readFile\",\"path\":\"headers/openvr_driver.h\",\"isOutsideWorkspace\":false,\"content\":\"c:\\\\Users\\\\decid\\\\Documents\\\\projects\\\\openvr-resilient\\\\headers\\\\openvr_driver.h\",\"reason\":\" (lines 1-100)\"}","partial":false},{"ts":1744498967101,"type":"say","say":"api_req_started","text":"{\"request\":\"[read_file for 'headers/openvr_driver.h'] Result:\\n\\n<file><path>headers/openvr_driver.h</path>\\n<content lines=\\\"1-100\\\">\\n  1 | #pragma once\\r\\n  2 | \\r\\n  3 | // openvr_driver.h\\r\\n  4 | //========= Copyright Valve Corporation ============//\\r\\n  5 | // Dynamically generated file. Do not modify this file directly.\\r\\n  6 | \\r\\n  7 | #ifndef _OPENVR_DRIVER_API\\r\\n  8 | #define _OPENVR_DRIVER_API\\r\\n  9 | \\r\\n 10 | #include <stdint.h>\\r\\n 11 | \\r\\n 12 | \\r\\n 13 | \\r\\n 14 | // version.h\\r\\n 15 | \\r\\n 16 | namespace vr\\r\\n 17 | {\\r\\n 18 | \\tstatic const uint32_t k_nSteamVRVersionMajor = 2;\\r\\n 19 | \\tstatic const uint32_t k_nSteamVRVersionMinor = 5;\\r\\n 20 | \\tstatic const uint32_t k_nSteamVRVersionBuild = 1;\\r\\n 21 | } // namespace vr\\r\\n 22 | \\r\\n 23 | // public_vrtypes.h\\r\\n 24 | \\r\\n 25 | #ifndef _INCLUDE_CORE_VRTYPES_PUBLIC_H\\r\\n 26 | #define _INCLUDE_CORE_VRTYPES_PUBLIC_H\\r\\n 27 | \\r\\n 28 | namespace vr\\r\\n 29 | {\\r\\n 30 | #pragma pack( push, 8 )\\r\\n 31 | \\r\\n 32 | typedef uint32_t PropertyTypeTag_t;\\r\\n 33 | \\r\\n 34 | // right-handed system\\r\\n 35 | // +y is up\\r\\n 36 | // +x is to the right\\r\\n 37 | // -z is forward\\r\\n 38 | // Distance unit is  meters\\r\\n 39 | struct HmdMatrix34_t\\r\\n 40 | {\\r\\n 41 | \\tfloat m[3][4];\\r\\n 42 | };\\r\\n 43 | \\r\\n 44 | struct HmdMatrix33_t\\r\\n 45 | {\\r\\n 46 | \\tfloat m[3][3];\\r\\n 47 | };\\r\\n 48 | \\r\\n 49 | struct HmdMatrix44_t\\r\\n 50 | {\\r\\n 51 | \\tfloat m[4][4];\\r\\n 52 | };\\r\\n 53 | \\r\\n 54 | struct HmdVector3_t\\r\\n 55 | {\\r\\n 56 | \\tfloat v[3];\\r\\n 57 | };\\r\\n 58 | \\r\\n 59 | struct HmdVector4_t\\r\\n 60 | {\\r\\n 61 | \\tfloat v[4];\\r\\n 62 | };\\r\\n 63 | \\r\\n 64 | struct HmdVector3d_t\\r\\n 65 | {\\r\\n 66 | \\tdouble v[3];\\r\\n 67 | };\\r\\n 68 | \\r\\n 69 | struct HmdVector2_t\\r\\n 70 | {\\r\\n 71 | \\tfloat v[2];\\r\\n 72 | };\\r\\n 73 | \\r\\n 74 | struct HmdQuaternion_t\\r\\n 75 | {\\r\\n 76 | \\tdouble w, x, y, z;\\r\\n 77 | };\\r\\n 78 | \\r\\n 79 | struct HmdQuaternionf_t\\r\\n 80 | {\\r\\n 81 | \\tfloat w, x, y, z;\\r\\n 82 | };\\r\\n 83 | \\r\\n 84 | struct HmdColor_t\\r\\n 85 | {\\r\\n 86 | \\tfloat r, g, b, a;\\r\\n 87 | };\\r\\n 88 | \\r\\n 89 | struct HmdQuad_t\\r\\n 90 | {\\r\\n 91 | \\tHmdVector3_t vCorners[ 4 ];\\r\\n 92 | };\\r\\n 93 | \\r\\n 94 | struct HmdRect2_t\\r\\n 95 | {\\r\\n 96 | \\tHmdVector2_t vTopLeft;\\r\\n 97 | \\tHmdVector2_t vBottomRight;\\r\\n 98 | };\\r\\n 99 | \\r\\n100 | /** Holds the transform for a single bone */\\r\\n</content>\\n</file>\\n\\n<environment_details>\\n# VSCode Visible Files\\ndocs\\\\Driver_API_Documentation.md\\n\\n# VSCode Open Tabs\\nREADME.md,OpenVR_Modifications.md,docs/Driver_API_Documentation.md,build.bat,src/vrcore/pathtools_public_fixed.h,src/vrcore/sharedlibtools_public_fixed.cpp,src/vrcore/strtools_public_fixed.cpp,src/vrcore/pathtools_public.h,src/vrcore/vrpathregistry_public_fixed.cpp,headers/openvr_capi.h,.gitignore,headers/openvr_driver.h,headers/openvr.h,src/openvr_api_public.cpp,src/vrcore/pathtools_public_fixed.cpp,openvr_api.vcxproj\\n\\n# Current Time\\n4/12/2025, 4:02:47 PM (America/Los_Angeles, UTC-7:00)\\n\\n# Current Context Size (Tokens)\\n35,426 (18%)\\n\\n# Current Cost\\n$0.16\\n\\n# Current Mode\\n<slug>ask</slug>\\n<name>Ask</name>\\n\\n\\nNOTE: You are currently in 'Ask' mode, which does not allow write operations. To write files, the user will need to switch to a mode that supports file writing, such as 'Code' mode.\\n</environment_details>\",\"tokensIn\":4,\"tokensOut\":96,\"cacheWrites\":1506,\"cacheReads\":35320,\"cost\":0.017695500000000003}"},{"ts":1744498968941,"type":"say","say":"text","text":"Let me search for IMU-related structures in the openvr_driver.h file to better understand how IMU data is handled in the driver API.","partial":false},{"ts":1744498969726,"type":"ask","ask":"tool","text":"{\"tool\":\"searchFiles\",\"path\":\"headers\",\"regex\":\"ImuSample|IMU|Imu\",\"filePattern\":\"*.h\",\"content\":\"Found 24 results.\\n\\n# headers/openvr_driver.h\\n500 | \\tProp_ImageBridgeFirmwareVersion_Uint64\\t\\t= 2062,\\n501 | \\tProp_ImuToHeadTransform_Matrix34\\t\\t\\t= 2063,\\n502 | \\tProp_ImuFactoryGyroBias_Vector3\\t\\t\\t\\t= 2064,\\n503 | \\tProp_ImuFactoryGyroScale_Vector3\\t\\t\\t= 2065,\\n504 | \\tProp_ImuFactoryAccelerometerBias_Vector3\\t= 2066,\\n505 | \\tProp_ImuFactoryAccelerometerScale_Vector3\\t= 2067,\\n506 | \\t// reserved 2068\\n----\\n2132 | \\n2133 | /** raw IMU data provided by IVRIOBuffer from paths to tracked devices with IMUs */\\n2134 | enum Imu_OffScaleFlags\\n2135 | {\\n----\\n2143 | \\n2144 | struct ImuSample_t\\n2145 | {\\n----\\n2535 | \\tstatic const char * const k_pch_Lighthouse_Section = \\\"driver_lighthouse\\\";\\n2536 | \\tstatic const char * const k_pch_Lighthouse_DisableIMU_Bool = \\\"disableimu\\\";\\n2537 | \\tstatic const char * const k_pch_Lighthouse_DisableIMUExceptHMD_Bool = \\\"disableimuexcepthmd\\\";\\n2538 | \\tstatic const char * const k_pch_Lighthouse_UseDisambiguation_String = \\\"usedisambiguation\\\";\\n----\\n2545 | \\tstatic const char * const k_pch_Lighthouse_InactivityTimeoutForBaseStations_Int32 = \\\"InactivityTimeoutForBaseStations\\\";\\n2546 | \\tstatic const char * const k_pch_Lighthouse_EnableImuFallback_Bool = \\\"enableImuFallback\\\";\\n2547 | \\n----\\n2767 | \\t * Also, the driver is not usually tracking the \\\"head\\\" position,\\n2768 | \\t * but instead an internal IMU or another reference point in the HMD.\\n2769 | \\t * The following two transforms transform positions and orientations\\n----\\n4519 | // ----------------------------------------------------------------------------------------------\\n4520 | // Purpose: Interface for accessing raw IMU data from tracked devices\\n4521 | // ----------------------------------------------------------------------------------------------\\n4522 | class IVRRawIMUData\\n4523 | {\\n4524 | public:\\n4525 |     // Returns the latest IMU sample data. Returns false if no new data is available.\\n4526 |     virtual bool GetIMUData(ImuSample_t *pSample) = 0;\\n4527 | \\n4528 |     // Returns the time of the last IMU sample in seconds since the device was started\\n4529 |     virtual double GetIMUSampleTime() = 0;\\n4530 | };\\n4531 | \\n4532 | static const char *IVRRawIMUData_Version = \\\"IVRRawIMUData_001\\\";\\n4533 | \\n----\\n4540 | \\n4541 | class CRawIMUData : public IVRRawIMUData\\n4542 | {\\n4543 | public:\\n4544 |     virtual bool GetIMUData(ImuSample_t *pSample) override\\n4545 |     {\\n----\\n4553 | \\n4554 |     virtual double GetIMUSampleTime() override\\n4555 |     {\\n----\\n4558 | \\n4559 |     // Method for the driver to update the IMU data\\n4560 |     void UpdateIMUData(const ImuSample_t &sample)\\n4561 |     {\\n----\\n4566 | private:\\n4567 |     ImuSample_t m_latestSample;\\n4568 |     bool m_bHasNewData = false;\\n----\\n\\n# headers/openvr_capi.h\\n239 | static const char * k_pch_Lighthouse_Section = \\\"driver_lighthouse\\\";\\n240 | static const char * k_pch_Lighthouse_DisableIMU_Bool = \\\"disableimu\\\";\\n241 | static const char * k_pch_Lighthouse_DisableIMUExceptHMD_Bool = \\\"disableimuexcepthmd\\\";\\n242 | static const char * k_pch_Lighthouse_UseDisambiguation_String = \\\"usedisambiguation\\\";\\n----\\n249 | static const char * k_pch_Lighthouse_InactivityTimeoutForBaseStations_Int32 = \\\"InactivityTimeoutForBaseStations\\\";\\n250 | static const char * k_pch_Lighthouse_EnableImuFallback_Bool = \\\"enableImuFallback\\\";\\n251 | static const char * k_pch_Null_Section = \\\"driver_null\\\";\\n----\\n634 | \\tETrackedDeviceProperty_Prop_ImageBridgeFirmwareVersion_Uint64 = 2062,\\n635 | \\tETrackedDeviceProperty_Prop_ImuToHeadTransform_Matrix34 = 2063,\\n636 | \\tETrackedDeviceProperty_Prop_ImuFactoryGyroBias_Vector3 = 2064,\\n637 | \\tETrackedDeviceProperty_Prop_ImuFactoryGyroScale_Vector3 = 2065,\\n638 | \\tETrackedDeviceProperty_Prop_ImuFactoryAccelerometerBias_Vector3 = 2066,\\n639 | \\tETrackedDeviceProperty_Prop_ImuFactoryAccelerometerScale_Vector3 = 2067,\\n640 | \\tETrackedDeviceProperty_Prop_ConfigurationIncludesLighthouse20Features_Bool = 2069,\\n----\\n1516 | \\n1517 | typedef enum Imu_OffScaleFlags\\n1518 | {\\n1519 | \\tImu_OffScaleFlags_OffScale_AccelX = 1,\\n1520 | \\tImu_OffScaleFlags_OffScale_AccelY = 2,\\n1521 | \\tImu_OffScaleFlags_OffScale_AccelZ = 4,\\n1522 | \\tImu_OffScaleFlags_OffScale_GyroX = 8,\\n1523 | \\tImu_OffScaleFlags_OffScale_GyroY = 16,\\n1524 | \\tImu_OffScaleFlags_OffScale_GyroZ = 32,\\n1525 | } Imu_OffScaleFlags;\\n1526 | \\n----\\n2409 | \\n2410 | typedef struct ImuSample_t\\n2411 | {\\n----\\n2415 | \\tuint32_t unOffScaleFlags;\\n2416 | } ImuSample_t;\\n2417 | \\n----\\n\\n# headers/openvr.h\\n500 | \\tProp_ImageBridgeFirmwareVersion_Uint64\\t\\t= 2062,\\n501 | \\tProp_ImuToHeadTransform_Matrix34\\t\\t\\t= 2063,\\n502 | \\tProp_ImuFactoryGyroBias_Vector3\\t\\t\\t\\t= 2064,\\n503 | \\tProp_ImuFactoryGyroScale_Vector3\\t\\t\\t= 2065,\\n504 | \\tProp_ImuFactoryAccelerometerBias_Vector3\\t= 2066,\\n505 | \\tProp_ImuFactoryAccelerometerScale_Vector3\\t= 2067,\\n506 | \\t// reserved 2068\\n----\\n2132 | \\n2133 | /** raw IMU data provided by IVRIOBuffer from paths to tracked devices with IMUs */\\n2134 | enum Imu_OffScaleFlags\\n2135 | {\\n----\\n2143 | \\n2144 | struct ImuSample_t\\n2145 | {\\n----\\n2943 | \\tstatic const char * const k_pch_Lighthouse_Section = \\\"driver_lighthouse\\\";\\n2944 | \\tstatic const char * const k_pch_Lighthouse_DisableIMU_Bool = \\\"disableimu\\\";\\n2945 | \\tstatic const char * const k_pch_Lighthouse_DisableIMUExceptHMD_Bool = \\\"disableimuexcepthmd\\\";\\n2946 | \\tstatic const char * const k_pch_Lighthouse_UseDisambiguation_String = \\\"usedisambiguation\\\";\\n----\\n2953 | \\tstatic const char * const k_pch_Lighthouse_InactivityTimeoutForBaseStations_Int32 = \\\"InactivityTimeoutForBaseStations\\\";\\n2954 | \\tstatic const char * const k_pch_Lighthouse_EnableImuFallback_Bool = \\\"enableImuFallback\\\";\\n2955 | \\n----\\n5387 | {\\n5388 | \\t/** Interface for accessing raw IMU data */\\n5389 | \\tclass IVRRawIMUData\\n5390 | \\t{\\n----\\n5397 | \\n5398 | \\t\\t/** Get the timestamp of the last IMU sample in seconds */\\n5399 | \\t\\tvirtual bool GetIMUSampleTimestamp(double* timestamp) = 0;\\n5400 | \\n5401 | \\t\\t/** Get a full IMU sample containing both gyroscope and accelerometer data */\\n5402 | \\t\\tvirtual bool GetIMUSample(vr::ImuSample_t* pSample) = 0;\\n5403 | \\t};\\n5404 | \\n5405 | \\tstatic const char* const IVRRawIMUData_Version = \\\"IVRRawIMUData_001\\\";\\n5406 | \\n----\"}","partial":false},{"ts":1744498988296,"type":"say","say":"api_req_started","text":"{\"request\":\"[search_files for 'ImuSample|IMU|Imu' in '*.h'] Result:\\n\\nFound 24 results.\\n\\n# headers/openvr_driver.h\\n500 | \\tProp_ImageBridgeFirmwareVersion_Uint64\\t\\t= 2062,\\n501 | \\tProp_ImuToHeadTransform_Matrix34\\t\\t\\t= 2063,\\n502 | \\tProp_ImuFactoryGyroBias_Vector3\\t\\t\\t\\t= 2064,\\n503 | \\tProp_ImuFactoryGyroScale_Vector3\\t\\t\\t= 2065,\\n504 | \\tProp_ImuFactoryAccelerometerBias_Vector3\\t= 2066,\\n505 | \\tProp_ImuFactoryAccelerometerScale_Vector3\\t= 2067,\\n506 | \\t// reserved 2068\\n----\\n2132 | \\n2133 | /** raw IMU data provided by IVRIOBuffer from paths to tracked devices with IMUs */\\n2134 | enum Imu_OffScaleFlags\\n2135 | {\\n----\\n2143 | \\n2144 | struct ImuSample_t\\n2145 | {\\n----\\n2535 | \\tstatic const char * const k_pch_Lighthouse_Section = \\\"driver_lighthouse\\\";\\n2536 | \\tstatic const char * const k_pch_Lighthouse_DisableIMU_Bool = \\\"disableimu\\\";\\n2537 | \\tstatic const char * const k_pch_Lighthouse_DisableIMUExceptHMD_Bool = \\\"disableimuexcepthmd\\\";\\n2538 | \\tstatic const char * const k_pch_Lighthouse_UseDisambiguation_String = \\\"usedisambiguation\\\";\\n----\\n2545 | \\tstatic const char * const k_pch_Lighthouse_InactivityTimeoutForBaseStations_Int32 = \\\"InactivityTimeoutForBaseStations\\\";\\n2546 | \\tstatic const char * const k_pch_Lighthouse_EnableImuFallback_Bool = \\\"enableImuFallback\\\";\\n2547 | \\n----\\n2767 | \\t * Also, the driver is not usually tracking the \\\"head\\\" position,\\n2768 | \\t * but instead an internal IMU or another reference point in the HMD.\\n2769 | \\t * The following two transforms transform positions and orientations\\n----\\n4519 | // ----------------------------------------------------------------------------------------------\\n4520 | // Purpose: Interface for accessing raw IMU data from tracked devices\\n4521 | // ----------------------------------------------------------------------------------------------\\n4522 | class IVRRawIMUData\\n4523 | {\\n4524 | public:\\n4525 |     // Returns the latest IMU sample data. Returns false if no new data is available.\\n4526 |     virtual bool GetIMUData(ImuSample_t *pSample) = 0;\\n4527 | \\n4528 |     // Returns the time of the last IMU sample in seconds since the device was started\\n4529 |     virtual double GetIMUSampleTime() = 0;\\n4530 | };\\n4531 | \\n4532 | static const char *IVRRawIMUData_Version = \\\"IVRRawIMUData_001\\\";\\n4533 | \\n----\\n4540 | \\n4541 | class CRawIMUData : public IVRRawIMUData\\n4542 | {\\n4543 | public:\\n4544 |     virtual bool GetIMUData(ImuSample_t *pSample) override\\n4545 |     {\\n----\\n4553 | \\n4554 |     virtual double GetIMUSampleTime() override\\n4555 |     {\\n----\\n4558 | \\n4559 |     // Method for the driver to update the IMU data\\n4560 |     void UpdateIMUData(const ImuSample_t &sample)\\n4561 |     {\\n----\\n4566 | private:\\n4567 |     ImuSample_t m_latestSample;\\n4568 |     bool m_bHasNewData = false;\\n----\\n\\n# headers/openvr_capi.h\\n239 | static const char * k_pch_Lighthouse_Section = \\\"driver_lighthouse\\\";\\n240 | static const char * k_pch_Lighthouse_DisableIMU_Bool = \\\"disableimu\\\";\\n241 | static const char * k_pch_Lighthouse_DisableIMUExceptHMD_Bool = \\\"disableimuexcepthmd\\\";\\n242 | static const char * k_pch_Lighthouse_UseDisambiguation_String = \\\"usedisambiguation\\\";\\n----\\n249 | static const char * k_pch_Lighthouse_InactivityTimeoutForBaseStations_Int32 = \\\"InactivityTimeoutForBaseStations\\\";\\n250 | static const char * k_pch_Lighthouse_EnableImuFallback_Bool = \\\"enableImuFallback\\\";\\n251 | static const char * k_pch_Null_Section = \\\"driver_null\\\";\\n----\\n634 | \\tETrackedDeviceProperty_Prop_ImageBridgeFirmwareVersion_Uint64 = 2062,\\n635 | \\tETrackedDeviceProperty_Prop_ImuToHeadTransform_Matrix34 = 2063,\\n636 | \\tETrackedDeviceProperty_Prop_ImuFactoryGyroBias_Vector3 = 2064,\\n637 | \\tETrackedDeviceProperty_Prop_ImuFactoryGyroScale_Vector3 = 2065,\\n638 | \\tETrackedDeviceProperty_Prop_ImuFactoryAccelerometerBias_Vector3 = 2066,\\n639 | \\tETrackedDeviceProperty_Prop_ImuFactoryAccelerometerScale_Vector3 = 2067,\\n640 | \\tETrackedDeviceProperty_Prop_ConfigurationIncludesLighthouse20Features_Bool = 2069,\\n----\\n1516 | \\n1517 | typedef enum Imu_OffScaleFlags\\n1518 | {\\n1519 | \\tImu_OffScaleFlags_OffScale_AccelX = 1,\\n1520 | \\tImu_OffScaleFlags_OffScale_AccelY = 2,\\n1521 | \\tImu_OffScaleFlags_OffScale_AccelZ = 4,\\n1522 | \\tImu_OffScaleFlags_OffScale_GyroX = 8,\\n1523 | \\tImu_OffScaleFlags_OffScale_GyroY = 16,\\n1524 | \\tImu_OffScaleFlags_OffScale_GyroZ = 32,\\n1525 | } Imu_OffScaleFlags;\\n1526 | \\n----\\n2409 | \\n2410 | typedef struct ImuSample_t\\n2411 | {\\n----\\n2415 | \\tuint32_t unOffScaleFlags;\\n2416 | } ImuSample_t;\\n2417 | \\n----\\n\\n# headers/openvr.h\\n500 | \\tProp_ImageBridgeFirmwareVersion_Uint64\\t\\t= 2062,\\n501 | \\tProp_ImuToHeadTransform_Matrix34\\t\\t\\t= 2063,\\n502 | \\tProp_ImuFactoryGyroBias_Vector3\\t\\t\\t\\t= 2064,\\n503 | \\tProp_ImuFactoryGyroScale_Vector3\\t\\t\\t= 2065,\\n504 | \\tProp_ImuFactoryAccelerometerBias_Vector3\\t= 2066,\\n505 | \\tProp_ImuFactoryAccelerometerScale_Vector3\\t= 2067,\\n506 | \\t// reserved 2068\\n----\\n2132 | \\n2133 | /** raw IMU data provided by IVRIOBuffer from paths to tracked devices with IMUs */\\n2134 | enum Imu_OffScaleFlags\\n2135 | {\\n----\\n2143 | \\n2144 | struct ImuSample_t\\n2145 | {\\n----\\n2943 | \\tstatic const char * const k_pch_Lighthouse_Section = \\\"driver_lighthouse\\\";\\n2944 | \\tstatic const char * const k_pch_Lighthouse_DisableIMU_Bool = \\\"disableimu\\\";\\n2945 | \\tstatic const char * const k_pch_Lighthouse_DisableIMUExceptHMD_Bool = \\\"disableimuexcepthmd\\\";\\n2946 | \\tstatic const char * const k_pch_Lighthouse_UseDisambiguation_String = \\\"usedisambiguation\\\";\\n----\\n2953 | \\tstatic const char * const k_pch_Lighthouse_InactivityTimeoutForBaseStations_Int32 = \\\"InactivityTimeoutForBaseStations\\\";\\n2954 | \\tstatic const char * const k_pch_Lighthouse_EnableImuFallback_Bool = \\\"enableImuFallback\\\";\\n2955 | \\n----\\n5387 | {\\n5388 | \\t/** Interface for accessing raw IMU data */\\n5389 | \\tclass IVRRawIMUData\\n5390 | \\t{\\n----\\n5397 | \\n5398 | \\t\\t/** Get the timestamp of the last IMU sample in seconds */\\n5399 | \\t\\tvirtual bool GetIMUSampleTimestamp(double* timestamp) = 0;\\n5400 | \\n5401 | \\t\\t/** Get a full IMU sample containing both gyroscope and accelerometer data */\\n5402 | \\t\\tvirtual bool GetIMUSample(vr::ImuSample_t* pSample) = 0;\\n5403 | \\t};\\n5404 | \\n5405 | \\tstatic const char* const IVRRawIMUData_Version = \\\"IVRRawIMUData_001\\\";\\n5406 | \\n----\\n\\n<environment_details>\\n# VSCode Visible Files\\ndocs\\\\Driver_API_Documentation.md\\n\\n# VSCode Open Tabs\\nREADME.md,OpenVR_Modifications.md,docs/Driver_API_Documentation.md,build.bat,src/vrcore/pathtools_public_fixed.h,src/vrcore/sharedlibtools_public_fixed.cpp,src/vrcore/strtools_public_fixed.cpp,src/vrcore/pathtools_public.h,src/vrcore/vrpathregistry_public_fixed.cpp,headers/openvr_capi.h,.gitignore,headers/openvr_driver.h,headers/openvr.h,src/openvr_api_public.cpp,src/vrcore/pathtools_public_fixed.cpp,openvr_api.vcxproj\\n\\n# Current Time\\n4/12/2025, 4:03:08 PM (America/Los_Angeles, UTC-7:00)\\n\\n# Current Context Size (Tokens)\\n36,926 (18%)\\n\\n# Current Cost\\n$0.18\\n\\n# Current Mode\\n<slug>ask</slug>\\n<name>Ask</name>\\n\\n\\nNOTE: You are currently in 'Ask' mode, which does not allow write operations. To write files, the user will need to switch to a mode that supports file writing, such as 'Code' mode.\\n</environment_details>\",\"tokensIn\":4,\"tokensOut\":97,\"cacheWrites\":2906,\"cacheReads\":36826,\"cost\":0.023412300000000004}"},{"ts":1744498990918,"type":"say","say":"text","text":"Now I need to look at the ImuSample_t structure to understand what data it contains. Let me check the definition in the header files.","partial":false},{"ts":1744498991714,"type":"ask","ask":"tool","text":"{\"tool\":\"readFile\",\"path\":\"headers/openvr_driver.h\",\"isOutsideWorkspace\":false,\"content\":\"c:\\\\Users\\\\decid\\\\Documents\\\\projects\\\\openvr-resilient\\\\headers\\\\openvr_driver.h\",\"reason\":\" (lines 2143-2160)\"}","partial":false},{"ts":1744499001739,"type":"say","say":"api_req_started","text":"{\"request\":\"[read_file for 'headers/openvr_driver.h'] Result:\\n\\n<file><path>headers/openvr_driver.h</path>\\n<content lines=\\\"2143-2160\\\">\\n2143 | \\r\\n2144 | struct ImuSample_t\\r\\n2145 | {\\r\\n2146 | \\tdouble fSampleTime;\\r\\n2147 | \\tHmdVector3d_t vAccel;\\r\\n2148 | \\tHmdVector3d_t vGyro;\\r\\n2149 | \\tuint32_t unOffScaleFlags;\\r\\n2150 | };\\r\\n2151 | \\r\\n2152 | #pragma pack( pop )\\r\\n2153 | \\r\\n2154 | // figure out how to import from the VR API dll\\r\\n2155 | #if defined(_WIN32)\\r\\n2156 | \\r\\n2157 |   #if !defined(OPENVR_BUILD_STATIC)\\r\\n2158 |     #ifdef VR_API_EXPORT\\r\\n2159 |       #define VR_INTERFACE extern \\\"C\\\" __declspec( dllexport )\\r\\n2160 |     #else\\r\\n</content>\\n</file>\\n\\n<environment_details>\\n# VSCode Visible Files\\ndocs\\\\Driver_API_Documentation.md\\n\\n# VSCode Open Tabs\\nREADME.md,OpenVR_Modifications.md,docs/Driver_API_Documentation.md,build.bat,src/vrcore/pathtools_public_fixed.h,src/vrcore/sharedlibtools_public_fixed.cpp,src/vrcore/strtools_public_fixed.cpp,src/vrcore/pathtools_public.h,src/vrcore/vrpathregistry_public_fixed.cpp,headers/openvr_capi.h,.gitignore,headers/openvr_driver.h,headers/openvr.h,src/openvr_api_public.cpp,src/vrcore/pathtools_public_fixed.cpp,openvr_api.vcxproj\\n\\n# Current Time\\n4/12/2025, 4:03:21 PM (America/Los_Angeles, UTC-7:00)\\n\\n# Current Context Size (Tokens)\\n39,833 (20%)\\n\\n# Current Cost\\n$0.20\\n\\n# Current Mode\\n<slug>ask</slug>\\n<name>Ask</name>\\n\\n\\nNOTE: You are currently in 'Ask' mode, which does not allow write operations. To write files, the user will need to switch to a mode that supports file writing, such as 'Code' mode.\\n</environment_details>\",\"tokensIn\":4,\"tokensOut\":100,\"cacheWrites\":707,\"cacheReads\":39732,\"cost\":0.01608285}"},{"ts":1744499004083,"type":"say","say":"text","text":"Now I need to look at the IVRRawIMUData interface in more detail to understand how it's implemented in the driver API.","partial":false},{"ts":1744499005003,"type":"ask","ask":"tool","text":"{\"tool\":\"readFile\",\"path\":\"headers/openvr_driver.h\",\"isOutsideWorkspace\":false,\"content\":\"c:\\\\Users\\\\decid\\\\Documents\\\\projects\\\\openvr-resilient\\\\headers\\\\openvr_driver.h\",\"reason\":\" (lines 4519-4570)\"}","partial":false},{"ts":1744499009756,"type":"say","say":"api_req_started","text":"{\"request\":\"[read_file for 'headers/openvr_driver.h'] Result:\\n\\n<file><path>headers/openvr_driver.h</path>\\n<content lines=\\\"4519-4570\\\">\\n4519 | // ----------------------------------------------------------------------------------------------\\r\\n4520 | // Purpose: Interface for accessing raw IMU data from tracked devices\\r\\n4521 | // ----------------------------------------------------------------------------------------------\\r\\n4522 | class IVRRawIMUData\\r\\n4523 | {\\r\\n4524 | public:\\r\\n4525 |     // Returns the latest IMU sample data. Returns false if no new data is available.\\r\\n4526 |     virtual bool GetIMUData(ImuSample_t *pSample) = 0;\\r\\n4527 | \\r\\n4528 |     // Returns the time of the last IMU sample in seconds since the device was started\\r\\n4529 |     virtual double GetIMUSampleTime() = 0;\\r\\n4530 | };\\r\\n4531 | \\r\\n4532 | static const char *IVRRawIMUData_Version = \\\"IVRRawIMUData_001\\\";\\r\\n4533 | \\r\\n4534 | } // namespace vr\\r\\n4535 | \\r\\n4536 | \\r\\n4537 | \\r\\n4538 | namespace vr\\r\\n4539 | {\\r\\n4540 | \\r\\n4541 | class CRawIMUData : public IVRRawIMUData \\r\\n4542 | {\\r\\n4543 | public:\\r\\n4544 |     virtual bool GetIMUData(ImuSample_t *pSample) override\\r\\n4545 |     {\\r\\n4546 |         if (!m_bHasNewData || !pSample)\\r\\n4547 |             return false;\\r\\n4548 |             \\r\\n4549 |         *pSample = m_latestSample;\\r\\n4550 |         m_bHasNewData = false;\\r\\n4551 |         return true;\\r\\n4552 |     }\\r\\n4553 | \\r\\n4554 |     virtual double GetIMUSampleTime() override\\r\\n4555 |     {\\r\\n4556 |         return m_latestSample.fSampleTime;\\r\\n4557 |     }\\r\\n4558 | \\r\\n4559 |     // Method for the driver to update the IMU data\\r\\n4560 |     void UpdateIMUData(const ImuSample_t &sample)\\r\\n4561 |     {\\r\\n4562 |         m_latestSample = sample;\\r\\n4563 |         m_bHasNewData = true;\\r\\n4564 |     }\\r\\n4565 | \\r\\n4566 | private:\\r\\n4567 |     ImuSample_t m_latestSample;\\r\\n4568 |     bool m_bHasNewData = false;\\r\\n4569 | };\\r\\n4570 | \\r\\n</content>\\n</file>\\n\\n<environment_details>\\n# VSCode Visible Files\\ndocs\\\\Driver_API_Documentation.md\\n\\n# VSCode Open Tabs\\nREADME.md,OpenVR_Modifications.md,docs/Driver_API_Documentation.md,build.bat,src/vrcore/pathtools_public_fixed.h,src/vrcore/sharedlibtools_public_fixed.cpp,src/vrcore/strtools_public_fixed.cpp,src/vrcore/pathtools_public.h,src/vrcore/vrpathregistry_public_fixed.cpp,headers/openvr_capi.h,.gitignore,headers/openvr_driver.h,headers/openvr.h,src/openvr_api_public.cpp,src/vrcore/pathtools_public_fixed.cpp,openvr_api.vcxproj\\n\\n# Current Time\\n4/12/2025, 4:03:29 PM (America/Los_Angeles, UTC-7:00)\\n\\n# Current Context Size (Tokens)\\n40,543 (20%)\\n\\n# Current Cost\\n$0.22\\n\\n# Current Mode\\n<slug>ask</slug>\\n<name>Ask</name>\\n\\n\\nNOTE: You are currently in 'Ask' mode, which does not allow write operations. To write files, the user will need to switch to a mode that supports file writing, such as 'Code' mode.\\n</environment_details>\",\"tokensIn\":4,\"tokensOut\":113,\"cacheWrites\":1101,\"cacheReads\":40439,\"cost\":0.01796745}"},{"ts":1744499011783,"type":"say","say":"text","text":"Now I have a good understanding of the problem, the proposed solutions, and the current implementation status. Let me also check the IVRRawIMUData interface in openvr.h to see how it's defined for applications.","partial":false},{"ts":1744499013047,"type":"ask","ask":"tool","text":"{\"tool\":\"readFile\",\"path\":\"headers/openvr.h\",\"isOutsideWorkspace\":false,\"content\":\"c:\\\\Users\\\\decid\\\\Documents\\\\projects\\\\openvr-resilient\\\\headers\\\\openvr.h\",\"reason\":\" (lines 5387-5406)\"}","partial":false},{"ts":1744499026679,"type":"say","say":"api_req_started","text":"{\"request\":\"[read_file for 'headers/openvr.h'] Result:\\n\\n<file><path>headers/openvr.h</path>\\n<content lines=\\\"5387-5406\\\">\\n5387 | {\\r\\n5388 | \\t/** Interface for accessing raw IMU data */\\r\\n5389 | \\tclass IVRRawIMUData\\r\\n5390 | \\t{\\r\\n5391 | \\tpublic:\\r\\n5392 | \\t\\t/** Get raw gyroscope data in radians per second */\\r\\n5393 | \\t\\tvirtual bool GetRawGyroscopeData(float* x, float* y, float* z) = 0;\\r\\n5394 | \\t\\t\\r\\n5395 | \\t\\t/** Get raw accelerometer data in meters per second squared */\\r\\n5396 | \\t\\tvirtual bool GetRawAccelerometerData(float* x, float* y, float* z) = 0;\\r\\n5397 | \\t\\t\\r\\n5398 | \\t\\t/** Get the timestamp of the last IMU sample in seconds */\\r\\n5399 | \\t\\tvirtual bool GetIMUSampleTimestamp(double* timestamp) = 0;\\r\\n5400 | \\t\\t\\r\\n5401 | \\t\\t/** Get a full IMU sample containing both gyroscope and accelerometer data */\\r\\n5402 | \\t\\tvirtual bool GetIMUSample(vr::ImuSample_t* pSample) = 0;\\r\\n5403 | \\t};\\r\\n5404 | \\r\\n5405 | \\tstatic const char* const IVRRawIMUData_Version = \\\"IVRRawIMUData_001\\\";\\r\\n5406 | \\t\\r\\n</content>\\n</file>\\n\\n<environment_details>\\n# VSCode Visible Files\\ndocs\\\\Driver_API_Documentation.md\\n\\n# VSCode Open Tabs\\nREADME.md,OpenVR_Modifications.md,docs/Driver_API_Documentation.md,build.bat,src/vrcore/pathtools_public_fixed.h,src/vrcore/sharedlibtools_public_fixed.cpp,src/vrcore/strtools_public_fixed.cpp,src/vrcore/pathtools_public.h,src/vrcore/vrpathregistry_public_fixed.cpp,headers/openvr_capi.h,.gitignore,headers/openvr_driver.h,headers/openvr.h,src/openvr_api_public.cpp,src/vrcore/pathtools_public_fixed.cpp,openvr_api.vcxproj\\n\\n# Current Time\\n4/12/2025, 4:03:46 PM (America/Los_Angeles, UTC-7:00)\\n\\n# Current Context Size (Tokens)\\n41,657 (21%)\\n\\n# Current Cost\\n$0.24\\n\\n# Current Mode\\n<slug>ask</slug>\\n<name>Ask</name>\\n\\n\\nNOTE: You are currently in 'Ask' mode, which does not allow write operations. To write files, the user will need to switch to a mode that supports file writing, such as 'Code' mode.\\n</environment_details>\",\"tokensIn\":4,\"tokensOut\":1548,\"cacheWrites\":834,\"cacheReads\":41540,\"cost\":0.0388215}"},{"ts":1744499028130,"type":"say","say":"text","text":"I now have a comprehensive understanding of the problem, the proposed solutions, and the current implementation status. Let me summarize my findings:\n\n1. Problem being addressed:\n   - The current OpenVR API only provides IMU data through the TrackedDevicePose_t structure\n   - This data becomes invalid when optical tracking is lost\n   - Applications cannot access raw IMU data during tracking loss\n   - This is problematic for applications that need continuous IMU data\n\n2. Proposed solutions:\n   - Solution 1: Modify the OpenVR library to expose a new interface (IVRRawIMUData) for accessing raw IMU data\n   - Solution 2: Use the existing IVRIOBuffer interface to access raw IMU data\n   - Solution 3: Create a custom OpenVR driver that wraps the existing driver and exposes IMU data\n   - Solution 4: Use a different VR SDK that provides direct access to IMU data\n\n3. Alternative approach #2 (custom driver) details:\n   - Create a custom driver that wraps the existing driver\n   - The custom driver would expose IMU data through a custom interface\n   - This approach doesn't require modifying the OpenVR library itself\n   - The driver would need to implement the ITrackedDeviceServerDriver interface\n   - It would need to access the raw IMU data from the underlying driver\n   - It would then expose this data through the IVRRawIMUData interface\n\n4. Current implementation status:\n   - The OpenVR_Modifications.md file outlines the necessary modifications\n   - The IVRRawIMUData interface is defined in both openvr.h and openvr_driver.h\n   - The ImuSample_t structure is defined to hold IMU data\n   - There's a CRawIMUData implementation in openvr_driver.h\n   - However, it appears that the implementation is not working as expected, as the document mentions \"what has been implemented so far and why it's not working\"\n\n5. Why it's not working:\n   - The document doesn't explicitly state why the current implementation isn't working\n   - However, based on the code, it appears that:\n     - The IVRRawIMUData interface is defined but may not be properly exposed through the OpenVR API\n     - The implementation in openvr_driver.h (CRawIMUData) may not be properly connected to the actual IMU data from the device\n     - The GetIMUData method in the driver implementation may not be properly called or may not return valid data\n     - The custom driver approach (alternative #2) may not have been fully implemented yet","partial":false},{"ts":1744499038355,"type":"say","say":"completion_result","text":"# OpenVR Raw IMU Data Access: Problem Analysis and Solution Paths\n\n## Problem Statement\nThe current OpenVR API has a significant limitation: IMU data is only accessible through the `TrackedDevicePose_t` structure, which becomes invalid when optical tracking is lost. This prevents applications from accessing raw IMU data during tracking loss periods, creating a critical gap for applications that require continuous IMU data regardless of optical tracking status.\n\n## Proposed Solutions\n\n### Primary Solution: OpenVR Library Modification\nThe document outlines a direct modification to the OpenVR library that would:\n1. Add a new `IVRRawIMUData` interface in `openvr.h`\n2. Implement this interface in the OpenVR runtime\n3. Expose the interface through the OpenVR API\n4. Add necessary member variables to the `CVRSystem` class\n\nThis approach requires modifying and rebuilding the OpenVR library, then replacing the existing library with the modified version.\n\n### Alternative Approaches\n\n#### 1. Use IVRIOBuffer Interface\nLeverage the existing `IVRIOBuffer` interface to access raw IMU data buffers. This requires knowledge of specific buffer paths used by drivers to store IMU data, which may not be publicly documented.\n\n#### 2. Create a Custom Driver (Recommended Alternative)\nCreate a custom OpenVR driver that:\n- Wraps the existing driver\n- Accesses the raw IMU data from the underlying hardware\n- Exposes this data through a custom interface\n\nThis approach doesn't require modifying the OpenVR library itself, making it more maintainable across OpenVR updates.\n\n#### 3. Use a Different VR SDK\nSwitch to a different VR SDK that already provides direct access to IMU data, such as the Oculus SDK or SteamVR Unity Plugin.\n\n## Current Implementation Status\n\nThe codebase shows evidence of partial implementation:\n\n1. The `IVRRawIMUData` interface is defined in both `openvr.h` and `openvr_driver.h` with slightly different method signatures:\n   - The application-facing interface in `openvr.h` includes methods for accessing gyroscope and accelerometer data separately\n   - The driver-facing interface in `openvr_driver.h` is simpler with just `GetIMUData` and `GetIMUSampleTime` methods\n\n2. The `ImuSample_t` structure exists to hold IMU data with:\n   - Sample timestamp\n   - 3D acceleration vector\n   - 3D gyroscope vector\n   - Flags for off-scale values\n\n3. A `CRawIMUData` implementation exists in `openvr_driver.h` that provides:\n   - Methods to get IMU data\n   - Methods to update IMU data from the driver\n\n## Why It's Not Working\n\nWhile the document doesn't explicitly state why the current implementation isn't working, analysis of the code suggests:\n\n1. **Integration Gap**: The interfaces are defined but may not be properly connected to the OpenVR API's factory methods that would expose them to applications.\n\n2. **Data Access Issue**: The implementation may not have proper access to the actual IMU data from the device drivers.\n\n3. **Incomplete Custom Driver**: The custom driver approach (alternative #2) appears to be partially implemented but may not be correctly intercepting and exposing the IMU data.\n\n4. **Interface Mismatch**: The different method signatures between the application and driver interfaces suggest a potential integration issue.\n\n## Recommendation for Custom Driver Implementation\n\nThe custom driver approach (alternative #2) appears to be the most promising path forward as it:\n1. Doesn't require modifying the core OpenVR library\n2. Can be maintained independently of OpenVR updates\n3. Can be implemented using the existing OpenVR driver API\n4. Would provide the needed continuous IMU data access\n\nImplementation would require creating a driver that implements `ITrackedDeviceServerDriver`, accesses the raw IMU data from the underlying hardware, and exposes it through the `IVRRawIMUData` interface.","partial":false},{"ts":1744499053066,"type":"ask","ask":"tool","text":"{\"tool\":\"finishTask\"}"}]