From 3599d41941d5e32ef64bb7abef50656d14b89201 Mon Sep 17 00:00:00 2001 From: st44rplatinum <268061652+st44rplatinum@users.noreply.github.com> Date: Thu, 8 Oct 2026 22:45:43 +0300 Subject: [PATCH] docs(libSceSystemService): record PPSA01521 as the MediaPlay caller --- docs/dev/TechnicalDebt.md | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/docs/dev/TechnicalDebt.md b/docs/dev/TechnicalDebt.md index 3c98b56af..a0807dd61 100644 --- a/docs/dev/TechnicalDebt.md +++ b/docs/dev/TechnicalDebt.md @@ -22,7 +22,7 @@ Throughout the project, every function at every stage either **does exactly what - [libSceAudioPropagation](../../core/libs/prx/libSceAudioPropagation/Export.cpp) implements only the no-acoustic-propagation path: the system keeps a 16-byte header in the title's CPU memory (no GPU memory), rooms, portals, sources and materials are tracked handles, attributes are validated and have no effect, no rays are requested and sources report no audio paths. Ray results, path calculation and audio paths are accepted only when empty and throw otherwise; `sceAudioPropagationSourceRender` writes silence (zeroes) to each source's output buffer for the given size, without a dry signal. Objects still alive when their system is destroyed become unusable, and their later destroy or unregister is a no-op: PPSA21567 releases its reference-counted room, portal and source owners just before `sceAudioPropagationSystemDestroy`, so the order for every object is not proven. Occlusion, reflections and reverb from level geometry are absent; in-game behaviour remains unverified. - [libSceNpCommerce](../../core/libs/prx/libSceNpCommerce/Export.cpp) - the PS Store icon show/hide calls and `sceNpCommerceSetPsStoreIconLayout` do nothing - [libSceUsbd](../../core/libs/prx/libSceUsbd/Export.cpp) implements only the no-device path: `sceUsbdInit` and `sceUsbdExit` succeed without a host USB context, the device list is always empty and event handling waits for its timeout; calls that need a device throw -- [libSceSystemService](../../core/libs/prx/libSceSystemService/Export.cpp) - `sceSystemServicePowerTick`, `sceSystemServiceReportAbnormalTermination`, `sceSystemServiceDisableMusicPlayer`, `sceSystemServiceReenableMusicPlayer`, `sceSystemServiceDisableMediaPlay` and `sceSystemServiceReenableMediaPlay` return success and do nothing: the host has no auto power-off timer to reset, no system crash reporter to notify, no system music player to pause or resume and no system media playback to disable +- [libSceSystemService](../../core/libs/prx/libSceSystemService/Export.cpp) - `sceSystemServicePowerTick`, `sceSystemServiceReportAbnormalTermination`, `sceSystemServiceDisableMusicPlayer`, `sceSystemServiceReenableMusicPlayer`, `sceSystemServiceDisableMediaPlay` and `sceSystemServiceReenableMediaPlay` return success and do nothing: the host has no auto power-off timer to reset, no system crash reporter to notify, no system music player to pause or resume and no system media playback to disable. PPSA01521 calls `sceSystemServiceDisableMediaPlay` during start-up, and its wrappers for both pass no arguments - [libSceBluetoothHid](../../core/libs/prx/libSceBluetoothHid/Export.cpp) implements only the no-device path: initialization and callback and device registration succeed, the callback is never called because no device connects, and calls that need a connected device throw - [sceVideoOutOpen](../../core/libs/prx/libSceVideoOut/src/Output.cpp) validates the priority and CPU affinity that the open param requests for the VideoOut service thread but does not apply them: the port's present and vblank threads are host threads, and guest priorities and affinities do not reach host scheduling - Without `VK_KHR_fragment_shader_barycentric` the shader recompiler [does not load the barycentric VGPRs](../../core/shader/recompiler/Translation/src/InstructionTranslator.cpp): [`v_interp_p1_f32` is dropped and `v_interp_p2_f32` reads the attribute Vulkan interpolated](../../core/shader/recompiler/Translation/src/AttributeInstructions.cpp), so pixel shaders that use the barycentrics for anything other than `v_interp` get wrong values. @@ -193,8 +193,6 @@ Throughout the project, every function at every stage either **does exactly what - [sceNpSessionSignalingGetConnectionStatistics](../../core/libs/prx/libSceNpSessionSignaling/Export.cpp) (libSceNpSessionSignaling) - unknown signature - [sceUserServiceGetAgeLevel](../../core/libs/prx/libSceUserService/Export.cpp) (libSceUserService) - the meaning of the value is unknown; 0 is reported, as for the unset game presets. PPSA12544 (Unity) only stores it for its user profile - [sceGameUpdateGetAddcontLatestVersion](../../core/libs/prx/libSceGameUpdate/Export.cpp) (libSceGameUpdate) - a null `entitlement_label` throws: KytyPS5 accepts it, prosper returns `0x80412803`. Bytes after `found` are zeroed as in KytyPS5; prosper leaves them untouched -- [sceSystemServiceDisableMediaPlay](../../core/libs/prx/libSceSystemService/Export.cpp) (libSceSystemService) - unknown signature -- [sceSystemServiceReenableMediaPlay](../../core/libs/prx/libSceSystemService/Export.cpp) (libSceSystemService) - unknown signature - [sceSystemServiceParamGetString](../../core/libs/prx/libSceSystemService/Export.cpp) (libSceSystemService) - the system name (parameter 6) is the fixed `PS5`, not the console's name; other parameters and buffers of 1 to 64 bytes throw - [sceNgs2SystemSetSampleRate, sceNgs2SystemSetUserData, sceNgs2SystemGetUserData, sceNgs2SystemLock, sceNgs2SystemUnlock](../../core/libs/prx/libSceNgs2.native/src/System.cpp) (libSceNgs2.native) - shadPS4 only checks the system handle (`INVALID_SYSTEM_HANDLE`) and SharpProspero names what each call does; neither gives the other limits. A sample rate of 0 and a null user data pointer throw, any other rate is accepted, and changing the rate while a sampler filter is enabled throws because the filter coefficients were computed for the old rate. Lock and unlock take the same lock as `sceNgs2RackLock` - [sceNgs2RackGetInfo](../../core/libs/prx/libSceNgs2.native/src/Rack.cpp) (libSceNgs2.native) - field order from [shadPS4](https://github.com/shadps4-emu/shadPS4)'s `OrbisNgs2RackInfo` with the 64-byte name of the other info structures (216 bytes); `type` is assumed to be the rack id divided by 0x1000, `min_grain_samples` 64 (the system minimum) and `state_flags` 1; `uid` comes from a per-process rack counter, `render_count` is the owning system's render count and `active_voice_count` counts voices that are not empty (paused and stopped voices included). The last process ratio and tick and `active_channel_work_count` are left zero