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59 lines
1.2 KiB
C++
59 lines
1.2 KiB
C++
#include "stdafx.h"
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#include "Emu/IdManager.h"
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#include "Emu/Cell/PPUModule.h"
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#include "Utilities/Thread.h"
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#include "Emu/Cell/lv2/sys_spu.h"
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#include "Emu/Cell/lv2/sys_sync.h"
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#include <thread>
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// SONIC THE HEDGEDOG: a fix for a race condition between SPUs and PPUs causing missing graphics (SNR is overriden when non-empty)
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void WaitForSPUsToEmptySNRs(ppu_thread& ppu, u32 spu_id, u32 snr_mask)
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{
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ppu.state += cpu_flag::wait;
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auto [spu, group] = lv2_spu_group::get_thread(spu_id);
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if ((!spu && spu_id != umax) || snr_mask % 4 == 0)
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{
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return;
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}
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// Wait until specified SNRs are reported empty at least once
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for (bool has_busy = true; has_busy && !ppu.is_stopped(); std::this_thread::yield())
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{
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has_busy = false;
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auto for_one = [&](u32, spu_thread& spu)
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{
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if ((snr_mask & 1) && spu.ch_snr1.get_count())
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{
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has_busy = true;
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return;
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}
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if ((snr_mask & 2) && spu.ch_snr2.get_count())
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{
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has_busy = true;
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}
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};
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if (spu)
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{
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// Wait for a single SPU
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for_one(spu->id, *spu);
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}
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else
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{
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// Wait for all SPUs
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idm::select<named_thread<spu_thread>>(for_one);
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}
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}
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}
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DECLARE(ppu_module_manager::hle_patches)("RPCS3_HLE_LIBRARY", []()
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{
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REG_FUNC(RPCS3_HLE_LIBRARY, WaitForSPUsToEmptySNRs);
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});
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