Move utility classes from common to own static lib

src/util/cd_subchannel_replacement.h

@@ -0,0 +1,32 @@
+#pragma once
+#include "cd_image.h"
+#include "common/types.h"
+#include <array>
+#include <cstdio>
+#include <unordered_map>
+
+class CDSubChannelReplacement
+{
+public:
+  CDSubChannelReplacement();
+  ~CDSubChannelReplacement();
+
+  u32 GetReplacementSectorCount() const { return static_cast<u32>(m_replacement_subq.size()); }
+
+  bool LoadSBI(const char* path);
+  bool LoadSBIFromImagePath(const char* image_path);
+
+  /// Adds a sector to the replacement map.
+  void AddReplacementSubChannelQ(u32 lba, const CDImage::SubChannelQ& subq);
+
+  /// Returns the replacement subchannel data for the specified position (in BCD).
+  bool GetReplacementSubChannelQ(u8 minute_bcd, u8 second_bcd, u8 frame_bcd, CDImage::SubChannelQ* subq) const;
+
+  /// Returns the replacement subchannel data for the specified sector.
+  bool GetReplacementSubChannelQ(u32 lba, CDImage::SubChannelQ* subq) const;
+
+private:
+  using ReplacementMap = std::unordered_map<u32, CDImage::SubChannelQ>;
+
+  ReplacementMap m_replacement_subq;
+};