Initial support for xex patching

src/xenia/patcher/patcher.h

@@ -0,0 +1,36 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2022 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_PATCHER_H_
+#define XENIA_PATCHER_H_
+
+#include "xenia/memory.h"
+#include "xenia/patcher/patch_db.h"
+
+namespace xe {
+namespace patcher {
+
+class Patcher {
+ public:
+  Patcher(const std::filesystem::path patches_root);
+
+  void ApplyPatch(Memory* memory, const PatchInfoEntry* patch);
+  void ApplyPatchesForTitle(Memory* memory, const uint32_t title_id,
+                            const std::optional<uint64_t> hash);
+
+  bool IsAnyPatchApplied() { return is_any_patch_applied_; }
+
+ private:
+  PatchDB* patch_db_;
+  bool is_any_patch_applied_;
+};
+
+}  // namespace patcher
+}  // namespace xe
+#endif