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made savestates synchronous and immediate. this allows saving or loading while the emulator is paused, fixes issues where savestate hotkeys would get ignored if pressed too close together, might speed up savestates in some cases, and hopefully makes savestates more stable too.

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the intent is to replace the haphazard scheduling and finger-crossing associated with saving/loading with the correct and minimal necessary wait for each thread to reach a known safe location before commencing the savestate operation, and for any already-paused components to not need to be resumed to do so.
This commit is contained in:
nitsuja
2011-12-30 20:16:12 -08:00
committed by skidau
parent 108f69eaa9
commit a81631b58e
33 changed files with 518 additions and 323 deletions
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6
Source/Core/AudioCommon/Src/Mixer.cpp
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@ -37,7 +37,9 @@ unsigned int CMixer::Mix(short* samples, unsigned int numSamples)
if (!samples)
return 0;
if (PowerPC::GetState() != 0)
std::lock_guard<std::mutex> lk(m_csMixing);
if (PowerPC::GetState() != PowerPC::CPU_RUNNING)
{
// Silence
memset(samples, 0, numSamples * 4);
@ -164,7 +166,7 @@ void CMixer::PushSamples(const short *samples, unsigned int num_samples)
// The auto throttle function. This loop will put a ceiling on the CPU MHz.
while (num_samples + Common::AtomicLoad(m_numSamples) > MAX_SAMPLES)
{
if (*PowerPC::GetStatePtr() != 0)
if (*PowerPC::GetStatePtr() != PowerPC::CPU_RUNNING || soundStream->IsMuted())
break;
// Shortcut key for Throttle Skipping
if (Host_GetKeyState('\t'))