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SPU: Implement internal volume sweep register reads 

Fixes muted audio in Michelin Rally Masters.
This commit is contained in:
Connor McLaughlin 2020-03-24 00:21:52 +10:00
parent 452c6e16d1
commit 7317c83a3c
1 changed files with 18 additions and 0 deletions
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18
src/core/spu.cpp
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@ -219,6 +219,14 @@ u16 SPU::ReadRegister(u32 offset)
case 0x1F801DB2 - SPU_BASE:
return m_cd_audio_volume_right;
case 0x1F801DB8 - SPU_BASE:
m_tick_event->InvokeEarly();
return m_main_volume_left.current_level;
case 0x1F801DBA - SPU_BASE:
m_tick_event->InvokeEarly();
return m_main_volume_right.current_level;
default:
{
if (offset < (0x1F801D80 - SPU_BASE))
@ -227,6 +235,16 @@ u16 SPU::ReadRegister(u32 offset)
if (offset >= (0x1F801DC0 - SPU_BASE) && offset <= (0x1F801DFE - SPU_BASE))
return m_reverb_registers.rev[(offset - (0x1F801DC0 - SPU_BASE)) / 2];
if (offset >= (0x1F801E00 - SPU_BASE) && offset <= (0x1F801E60 - SPU_BASE))
{
const u32 voice_index = offset - (0x1F801E00 - SPU_BASE);
m_tick_event->InvokeEarly();
if (offset & 0x02)
return m_voices[voice_index].left_volume.current_level;
else
return m_voices[voice_index].right_volume.current_level;
}
Log_ErrorPrintf("Unknown SPU register read: offset 0x%X (address 0x%08X)", offset, offset | SPU_BASE);
return UINT16_C(0xFFFF);
}