From 99636374634af721b36a1197e2cccf70efb8cb39 Mon Sep 17 00:00:00 2001
From: "Admiral H. Curtiss" <pikachu025@gmail.com>
Date: Tue, 13 Sep 2022 03:58:32 +0200
Subject: [PATCH] HW: Remove global state from functions in Sram.h.

---
 Source/Core/Core/HW/EXI/EXI.cpp               |  2 +-
 Source/Core/Core/HW/EXI/EXI_DeviceIPL.cpp     |  2 +-
 .../Core/Core/HW/EXI/EXI_DeviceMemoryCard.cpp |  2 +-
 Source/Core/Core/HW/Sram.cpp                  | 27 +++++++++----------
 Source/Core/Core/HW/Sram.h                    |  7 ++---
 Source/Core/Core/NetPlayServer.cpp            |  2 +-
 6 files changed, 21 insertions(+), 21 deletions(-)

diff --git a/Source/Core/Core/HW/EXI/EXI.cpp b/Source/Core/Core/HW/EXI/EXI.cpp
index c480e09235..08b5fe8eec 100644
--- a/Source/Core/Core/HW/EXI/EXI.cpp
+++ b/Source/Core/Core/HW/EXI/EXI.cpp
@@ -106,7 +106,7 @@ void Init()
 {
   if (!g_SRAM_netplay_initialized)
   {
-    InitSRAM();
+    InitSRAM(&g_SRAM, SConfig::GetInstance().m_strSRAM);
   }
 
   CEXIMemoryCard::Init();
diff --git a/Source/Core/Core/HW/EXI/EXI_DeviceIPL.cpp b/Source/Core/Core/HW/EXI/EXI_DeviceIPL.cpp
index 6f4d7ad2c2..b1ff59cbab 100644
--- a/Source/Core/Core/HW/EXI/EXI_DeviceIPL.cpp
+++ b/Source/Core/Core/HW/EXI/EXI_DeviceIPL.cpp
@@ -136,7 +136,7 @@ CEXIIPL::CEXIIPL()
   // you please
   g_SRAM.settings.language = Config::Get(Config::MAIN_GC_LANGUAGE);
   g_SRAM.settings.rtc_bias = 0;
-  FixSRAMChecksums();
+  FixSRAMChecksums(&g_SRAM);
 }
 
 CEXIIPL::~CEXIIPL()
diff --git a/Source/Core/Core/HW/EXI/EXI_DeviceMemoryCard.cpp b/Source/Core/Core/HW/EXI/EXI_DeviceMemoryCard.cpp
index 5e012e44db..a5d3f3a1e0 100644
--- a/Source/Core/Core/HW/EXI/EXI_DeviceMemoryCard.cpp
+++ b/Source/Core/Core/HW/EXI/EXI_DeviceMemoryCard.cpp
@@ -141,7 +141,7 @@ CEXIMemoryCard::CEXIMemoryCard(const Slot slot, bool gci_folder,
   m_memory_card_size = m_memory_card->GetCardId() * SIZE_TO_Mb;
   std::array<u8, 20> header{};
   m_memory_card->Read(0, static_cast<s32>(header.size()), header.data());
-  SetCardFlashID(header.data(), m_card_slot);
+  SetCardFlashID(&g_SRAM, header.data(), m_card_slot);
 }
 
 std::pair<std::string /* path */, bool /* migrate */>
diff --git a/Source/Core/Core/HW/Sram.cpp b/Source/Core/Core/HW/Sram.cpp
index 1f8b29116a..b177ed6443 100644
--- a/Source/Core/Core/HW/Sram.cpp
+++ b/Source/Core/Core/HW/Sram.cpp
@@ -9,7 +9,6 @@
 #include "Common/MsgHandler.h"
 #include "Common/Swap.h"
 
-#include "Core/ConfigManager.h"
 #include "Core/HW/EXI/EXI.h"
 
 // English
@@ -58,24 +57,24 @@ const SRAM sram_dump_german = {{
 }};
 #endif
 
-void InitSRAM()
+void InitSRAM(Sram* sram, const std::string& filename)
 {
-  File::IOFile file(SConfig::GetInstance().m_strSRAM, "rb");
+  File::IOFile file(filename, "rb");
   if (file)
   {
-    if (!file.ReadArray(&g_SRAM, 1))
+    if (!file.ReadArray(sram, 1))
     {
       ERROR_LOG_FMT(EXPANSIONINTERFACE, "EXI IPL-DEV: Could not read all of SRAM");
-      g_SRAM = sram_dump;
+      *sram = sram_dump;
     }
   }
   else
   {
-    g_SRAM = sram_dump;
+    *sram = sram_dump;
   }
 }
 
-void SetCardFlashID(const u8* buffer, ExpansionInterface::Slot card_slot)
+void SetCardFlashID(Sram* sram, const u8* buffer, ExpansionInterface::Slot card_slot)
 {
   u8 card_index;
   switch (card_slot)
@@ -96,25 +95,25 @@ void SetCardFlashID(const u8* buffer, ExpansionInterface::Slot card_slot)
   for (int i = 0; i < 12; i++)
   {
     rand = (((rand * (u64)0x0000000041c64e6dULL) + (u64)0x0000000000003039ULL) >> 16);
-    csum += g_SRAM.settings_ex.flash_id[card_index][i] = buffer[i] - ((u8)rand & 0xff);
+    csum += sram->settings_ex.flash_id[card_index][i] = buffer[i] - ((u8)rand & 0xff);
     rand = (((rand * (u64)0x0000000041c64e6dULL) + (u64)0x0000000000003039ULL) >> 16);
     rand &= (u64)0x0000000000007fffULL;
   }
-  g_SRAM.settings_ex.flash_id_checksum[card_index] = csum ^ 0xFF;
+  sram->settings_ex.flash_id_checksum[card_index] = csum ^ 0xFF;
 }
 
-void FixSRAMChecksums()
+void FixSRAMChecksums(Sram* sram)
 {
   // 16bit big-endian additive checksum
   u16 checksum = 0;
   u16 checksum_inv = 0;
-  for (auto p = reinterpret_cast<u16*>(&g_SRAM.settings.rtc_bias);
-       p != reinterpret_cast<u16*>(&g_SRAM.settings_ex); p++)
+  for (auto p = reinterpret_cast<u16*>(&sram->settings.rtc_bias);
+       p != reinterpret_cast<u16*>(&sram->settings_ex); p++)
   {
     u16 value = Common::FromBigEndian(*p);
     checksum += value;
     checksum_inv += ~value;
   }
-  g_SRAM.settings.checksum = checksum;
-  g_SRAM.settings.checksum_inv = checksum_inv;
+  sram->settings.checksum = checksum;
+  sram->settings.checksum_inv = checksum_inv;
 }
diff --git a/Source/Core/Core/HW/Sram.h b/Source/Core/Core/HW/Sram.h
index 92262ca331..3063b9383d 100644
--- a/Source/Core/Core/HW/Sram.h
+++ b/Source/Core/Core/HW/Sram.h
@@ -34,6 +34,7 @@ distribution.
 #pragma once
 
 #include <array>
+#include <string>
 
 #include "Common/CommonTypes.h"
 #include "Common/Swap.h"
@@ -133,9 +134,9 @@ static_assert(sizeof(Sram) == 0x44);
 
 #pragma pack(pop)
 
-void InitSRAM();
-void SetCardFlashID(const u8* buffer, ExpansionInterface::Slot card_slot);
-void FixSRAMChecksums();
+void InitSRAM(Sram* sram, const std::string& filename);
+void SetCardFlashID(Sram* sram, const u8* buffer, ExpansionInterface::Slot card_slot);
+void FixSRAMChecksums(Sram* sram);
 
 extern Sram g_SRAM;
 extern bool g_SRAM_netplay_initialized;
diff --git a/Source/Core/Core/NetPlayServer.cpp b/Source/Core/Core/NetPlayServer.cpp
index 64656c64f3..1327ad2e03 100644
--- a/Source/Core/Core/NetPlayServer.cpp
+++ b/Source/Core/Core/NetPlayServer.cpp
@@ -1440,7 +1440,7 @@ bool NetPlayServer::StartGame()
   if (!g_SRAM_netplay_initialized)
   {
     SConfig::GetInstance().m_strSRAM = File::GetUserPath(F_GCSRAM_IDX);
-    InitSRAM();
+    InitSRAM(&g_SRAM, SConfig::GetInstance().m_strSRAM);
     g_SRAM_netplay_initialized = true;
   }
   sf::Packet srampac;