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padscore: Simulate queue behaviour for KPADRead

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This commit is contained in:
Exzap 2024-08-15 02:16:03 +02:00
parent c49296acdc
commit b0bab273e2
1 changed files with 20 additions and 0 deletions
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20
src/Cafe/OS/libs/padscore/padscore.cpp
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@ -12,6 +12,7 @@
enum class KPAD_ERROR : sint32
{
NONE = 0,
NO_SAMPLE_DATA = -1,
NO_CONTROLLER = -2,
NOT_INITIALIZED = -5,
};
@ -106,6 +107,9 @@ void padscoreExport_WPADProbe(PPCInterpreter_t* hCPU)
}
else
{
if(type)
*type = 253;
osLib_returnFromFunction(hCPU, WPAD_ERR_NO_CONTROLLER);
}
}
@ -420,9 +424,12 @@ void padscoreExport_KPADSetConnectCallback(PPCInterpreter_t* hCPU)
osLib_returnFromFunction(hCPU, old_callback.GetMPTR());
}
uint64 g_kpadLastRead[InputManager::kMaxWPADControllers] = {0};
bool g_kpadIsInited = true;
sint32 _KPADRead(uint32 channel, KPADStatus_t* samplingBufs, uint32 length, betype<KPAD_ERROR>* errResult)
{
if (channel >= InputManager::kMaxWPADControllers)
{
debugBreakpoint();
@ -446,6 +453,19 @@ sint32 _KPADRead(uint32 channel, KPADStatus_t* samplingBufs, uint32 length, bety
return 0;
}
// On console new input samples are only received every few ms and calling KPADRead(Ex) clears the internal queue regardless of length value
// thus calling KPADRead(Ex) again too soon on the same channel will result in no data being returned
// Games that depend on this: Affordable Space Adventures
uint64 currentTime = coreinit::OSGetTime();
uint64 timeDif = currentTime - g_kpadLastRead[channel];
if(length == 0 || timeDif < coreinit::EspressoTime::ConvertNsToTimerTicks(1000000))
{
if (errResult)
*errResult = KPAD_ERROR::NO_SAMPLE_DATA;
return 0;
}
g_kpadLastRead[channel] = currentTime;
memset(samplingBufs, 0x00, sizeof(KPADStatus_t));
samplingBufs->wpadErr = WPAD_ERR_NONE;
samplingBufs->data_format = controller->get_data_format();