AnyPS5/docs/dev/debt/libSceHmd.md

libSceHmd technical debt

Silent stubs

• libSceHmd implements only the disconnected-headset path: initialization succeeds, device queries report NotDetected, and opening a device returns DeviceDisconnected. Headset support, tracking, rendering and additional HMD exports are not implemented; SDK-level ABI compatibility and in-game behaviour remain unverified.

Unknown function info

• libSceHmd queries without a headset (libSceHmd) - the signatures, the distortion work memory (0x20000, aligned to 0x400) and reprojection buffer sizes (garlic 0x100000, onion 0x810, both aligned to 0x100), and the results of sceHmdGetFieldOfView, sceHmdGet2DEyeOffset, sceHmdGetInertialSensorData (HANDLE_INVALID once initialized; field of view checks its output for null first) and sceHmdGetAssyError (null output, then DEVICE_DISCONNECTED once initialized) follow shadPS4 (PS4) with no headset, not a PS5 measurement. Before initialization sceHmdGetFieldOfView returns NOT_INITIALIZED for a non-null output, where shadPS4 checks the handle first and returns HANDLE_INVALID. The third argument of sceHmdGetInertialSensorData is unnamed there and taken as a count
• sceHmdInternalSocialScreenSetOutput (libSceHmd) - unknown signature
• sceHmdReprojectionStartWideNear (libSceHmd) - unknown signature
• sceHmdInternalDfuGetStatus (libSceHmd) - unknown signature
• sceHmdReprojectionSetCallback (libSceHmd) - unknown signature
• sceHmdGetDistortionWorkMemoryAlign (libSceHmd) - unknown signature
• sceHmdReprojectionStartMultilayer (libSceHmd) - unknown signature
• sceHmdInternalPushVr2dData (libSceHmd) - unknown signature
• sceHmdInternalGetVr2dData (libSceHmd) - unknown signature
• sceHmdInternalGetPuPositionParam (libSceHmd) - unknown signature
• sceHmdReprojectionInitializeCapture (libSceHmd) - unknown signature
• sceHmdGetDistortionWorkMemorySize (libSceHmd) - unknown signature
• sceHmdReprojectionSetDisplayBuffers (libSceHmd) - unknown signature
• sceHmdInternalAnotherScreenSetFadeAndSwitch (libSceHmd) - unknown signature
• sceHmdInternalMirroringModeSetAspectDebug (libSceHmd) - unknown signature
• sceHmdDistortionGetCompoundEyeCorrectionCommand (libSceHmd) - unknown signature
• sceHmdReprojectionStopCapture (libSceHmd) - unknown signature
• sceHmdDistortionGetCorrectionCommand (libSceHmd) - unknown signature
• sceHmdReprojectionDebugGetLastInfo (libSceHmd) - unknown signature
• sceHmdReprojectionAddDisplayBuffer (libSceHmd) - unknown signature
• sceHmdReprojectionInitialize (libSceHmd) - unknown signature
• sceHmdInternalGetDeviceInformationByHandle (libSceHmd) - unknown signature
• sceHmdInternalGetDeviceInformation (libSceHmd) - unknown signature
• sceHmdReprojectionStartCapture (libSceHmd) - unknown signature
• sceHmdInternalGetDefaultLedData (libSceHmd) - unknown signature
• sceHmdInternalBindDeviceWithUserId (libSceHmd) - unknown signature
• sceHmdInternalGetHmuSerialNumber (libSceHmd) - unknown signature
• sceHmdDistortionGetWideNearCorrectionCommand (libSceHmd) - unknown signature
• sceHmdInternalAnotherScreenGetAudioStatus (libSceHmd) - unknown signature
• sceHmdInternalSeparateModeGetAudioStatus (libSceHmd) - unknown signature
• sceHmdReprojectionStartLiveCapture (libSceHmd) - unknown signature
• sceHmdInternalSocialScreenSetFadeAndSwitch (libSceHmd) - unknown signature
• sceHmdDistortionInitialize (libSceHmd) - unknown signature
• sceHmdReprojectionStart (libSceHmd) - unknown signature
• sceHmdInternalCrashReportCancel (libSceHmd) - unknown signature
• sceHmdInternalSeparateModeGetVideoStatus (libSceHmd) - unknown signature
• sceHmdInternalSeparateModeOpen (libSceHmd) - unknown signature
• sceHmdDistortionGet2dVrCommand (libSceHmd) - unknown signature
• sceHmdGetWideNearDistortionCorrectionCommand (libSceHmd) - unknown signature
• sceHmdReprojectionStartMultilayer2 (libSceHmd) - unknown signature
• sceHmdGetDistortionCorrectionCommand (libSceHmd) - unknown signature
• sceHmdInternalGetHmuOpticalParam (libSceHmd) - unknown signature
• sceHmdReprojectionStartWithOverlay (libSceHmd) - unknown signature
• sceHmdReprojectionStartWideNearWithOverlay (libSceHmd) - unknown signature
• sceHmdGetDistortionParams (libSceHmd) - unknown signature
• sceHmdInternalGetCrashDumpInfo (libSceHmd) - unknown signature
• sceHmdReprojectionStart2dVr (libSceHmd) - unknown signature
• sceHmdInternalSetDefaultLedData (libSceHmd) - unknown signature
• sceHmdInternalGetStatusReport (libSceHmd) - unknown signature
• sceHmdInternalAnotherScreenGetVideoStatus (libSceHmd) - unknown signature
• sceHmdReprojectionDebugGetLastInfoMultilayer (libSceHmd) - unknown signature
• sceHmdGet2dVrCommand (libSceHmd) - unknown signature