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GS: Fix possible crash when changing settings with readbacks disabled

This commit is contained in:
Connor McLaughlin 2022-06-16 20:40:08 +10:00 committed by lightningterror
parent 999b2267c0
commit c86e82039a
1 changed files with 12 additions and 1 deletions
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13
pcsx2/MTGS.cpp
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@ -242,7 +242,7 @@ void SysMtgsThread::PostVsyncStart(bool registers_written)
void SysMtgsThread::InitAndReadFIFO(u8* mem, u32 qwc)
{
if (GSConfig.HWDisableReadbacks && GSConfig.UseHardwareRenderer())
if (EmuConfig.GS.HWDisableReadbacks && GSConfig.UseHardwareRenderer())
{
GSReadLocalMemoryUnsync(mem, qwc, vif1.BITBLTBUF._u64, vif1.TRXPOS._u64, vif1.TRXREG._u64);
return;
@ -916,6 +916,13 @@ void SysMtgsThread::ApplySettings()
RunOnGSThread([opts = EmuConfig.GS]() {
GSUpdateConfig(opts);
});
// We need to synchronize the thread when changing any settings when the download mode
// is unsynchronized, because otherwise we might potentially read in the middle of
// the GS renderer being reopened.
if (EmuConfig.GS.HWDisableReadbacks)
WaitGS(false, false, false);
}
void SysMtgsThread::ResizeDisplayWindow(int width, int height, float scale)
@ -960,6 +967,10 @@ void SysMtgsThread::SwitchRenderer(GSRendererType renderer, bool display_message
RunOnGSThread([renderer]() {
GSSwitchRenderer(renderer);
});
// See note in ApplySettings() for reasoning here.
if (EmuConfig.GS.HWDisableReadbacks)
WaitGS(false, false, false);
}
void SysMtgsThread::SetSoftwareRendering(bool software, bool display_message /* = true */)