Merge pull request #5618 from lioncash/fifo

FifoRecorder: Don't allocate ~100.7MB on program startup

Source/Core/Core/FifoPlayer/FifoRecorder.cpp

@@ -18,9 +18,7 @@
 static FifoRecorder instance;
 static std::recursive_mutex sMutex;
 
-FifoRecorder::FifoRecorder() : m_Ram(Memory::RAM_SIZE), m_ExRam(Memory::EXRAM_SIZE)
-{
-}
+FifoRecorder::FifoRecorder() = default;
 
 FifoRecorder::~FifoRecorder()
 {
@@ -36,6 +34,22 @@ void FifoRecorder::StartRecording(s32 numFrames, CallbackFunc finishedCb)
   FifoAnalyzer::Init();
 
   m_File = new FifoDataFile;
+
+  // TODO: This, ideally, would be deallocated when done recording.
+  //       However, care needs to be taken since global state
+  //       and multithreading don't play well nicely together.
+  //       The video thread may call into functions that utilize these
+  //       despite 'end recording' being requested via StopRecording().
+  //       (e.g. OpcodeDecoder calling UseMemory())
+  //
+  // Basically:
+  //   - Singletons suck
+  //   - Global variables suck
+  //   - Multithreading with the above two sucks
+  //
+  m_Ram.resize(Memory::RAM_SIZE);
+  m_ExRam.resize(Memory::EXRAM_SIZE);
+
   std::fill(m_Ram.begin(), m_Ram.end(), 0);
   std::fill(m_ExRam.begin(), m_ExRam.end(), 0);