Fuck git

src/backend/RomHelpers.hpp

@@ -0,0 +1,48 @@
+#pragma once
+#include <MemoryHelpers.hpp>
+#include <log.hpp>
+
+namespace Util {
+#define Z64 0x80371200
+#define N64 0x00123780
+#define V64 0x37800012
+
+template <bool toBE = false>
+FORCE_INLINE void SwapN64Rom(std::vector<u8> &rom, u32 endianness) {
+  u8 altByteShift = 0;
+  if (endianness >> 24 != 0x80) {
+    if ((endianness & 0xFF) != 0x80) {
+      if ((endianness >> 16 & 0xff) != 0x80) {
+        Error::GetInstance().Throw({Error::Severity::UNRECOVERABLE}, {Error::Type::ROM_LOAD_ERROR}, {}, {}, "Unrecognized rom endianness");
+        return;
+      } else {
+        altByteShift = 12;
+      }
+    } else {
+      altByteShift = 24;
+    }
+  } else {
+    altByteShift = 0;
+  }
+
+  endianness &= ~(0xFF << altByteShift);
+
+  switch (endianness) {
+  case V64:
+    SwapBuffer<u16>(rom);
+    if constexpr (!toBE)
+      SwapBuffer<u32>(rom);
+    break;
+  case N64:
+    if constexpr (toBE)
+      SwapBuffer<u32>(rom);
+    break;
+  case Z64:
+    if constexpr (!toBE)
+      SwapBuffer<u32>(rom);
+    break;
+  default:
+    Error::GetInstance().Throw({Error::Severity::UNRECOVERABLE}, {Error::Type::ROM_LOAD_ERROR}, {}, {}, "Unrecognized rom format! Make sure this is a valid Nintendo 64 ROM dump!");
+  }
+}
+} // namespace Util