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System: Implement runahead

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This commit is contained in:
Connor McLaughlin
2021-01-24 02:52:52 +10:00
parent 689b62e065
commit e01d66d18e
15 changed files with 278 additions and 35 deletions
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8
src/core/spu.cpp
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@ -31,6 +31,7 @@ void SPU::Initialize()
"SPU Transfer", TRANSFER_TICKS_PER_HALFWORD, TRANSFER_TICKS_PER_HALFWORD,
[](void* param, TickCount ticks, TickCount ticks_late) { static_cast<SPU*>(param)->ExecuteTransfer(ticks); }, this,
false);
m_audio_stream = g_host_interface->GetAudioStream();
Reset();
}
@ -49,6 +50,7 @@ void SPU::Shutdown()
m_tick_event.reset();
m_transfer_event.reset();
m_dump_writer.reset();
m_audio_stream = nullptr;
}
void SPU::Reset()
@ -172,7 +174,6 @@ bool SPU::DoState(StateWrapper& sw)
if (sw.IsReading())
{
g_host_interface->GetAudioStream()->EmptyBuffers();
UpdateEventInterval();
UpdateTransferEvent();
}
@ -1731,10 +1732,9 @@ void SPU::Execute(TickCount ticks)
while (remaining_frames > 0)
{
AudioStream* const output_stream = g_host_interface->GetAudioStream();
s16* output_frame_start;
u32 output_frame_space = remaining_frames;
output_stream->BeginWrite(&output_frame_start, &output_frame_space);
m_audio_stream->BeginWrite(&output_frame_start, &output_frame_space);
s16* output_frame = output_frame_start;
const u32 frames_in_this_batch = std::min(remaining_frames, output_frame_space);
@ -1837,7 +1837,7 @@ void SPU::Execute(TickCount ticks)
if (m_dump_writer)
m_dump_writer->WriteFrames(output_frame_start, frames_in_this_batch);
output_stream->EndWrite(frames_in_this_batch);
m_audio_stream->EndWrite(frames_in_this_batch);
remaining_frames -= frames_in_this_batch;
}
}