impr: Refactor disassembler system to make it more modular

lib/libimhex/include/hex/api/content_registry.hpp

@@ -43,7 +43,6 @@ namespace hex {
         plugins when needed.
     */
     namespace ContentRegistry {
-
         /* Settings Registry. Allows adding of new entries into the ImHex preferences window. */
         namespace Settings {
 
@@ -1354,6 +1353,7 @@ namespace hex {
 
         }
 
+        /* Data Information Registry. Allows adding new analyzers to the data information view */
         namespace DataInformation {
 
             class InformationSection {
@@ -1420,6 +1420,54 @@ namespace hex {
 
         }
 
+        /* Disassembler Registry. Allows adding new disassembler architectures */
+        namespace Disassembler {
+
+            struct Instruction {
+                u64 address;
+                u64 offset;
+                size_t size;
+                std::string bytes;
+                std::string mnemonic;
+                std::string operators;
+            };
+
+            class Architecture {
+            public:
+                explicit Architecture(std::string name) : m_name(std::move(name)) {}
+                virtual ~Architecture() = default;
+
+                virtual bool start() = 0;
+                virtual void end() = 0;
+
+                virtual std::optional<Instruction> disassemble(u64 imageBaseAddress, u64 instructionLoadAddress, u64 instructionDataAddress, std::span<const u8> code) = 0;
+                virtual void drawSettings() = 0;
+
+                [[nodiscard]] const std::string& getName() const { return m_name; }
+
+            private:
+                std::string m_name;
+            };
+
+            namespace impl {
+
+                using CreatorFunction = std::function<std::unique_ptr<Architecture>()>;
+
+                void addArchitectureCreator(CreatorFunction function);
+
+                const std::map<std::string, CreatorFunction>& getArchitectures();
+
+            }
+
+            template<std::derived_from<Architecture> T>
+            void add(auto && ...args) {
+                impl::addArchitectureCreator([args...] {
+                    return std::make_unique<T>(std::forward<decltype(args)>(args)...);
+                });
+            }
+
+        }
+
     }
 
 }

lib/libimhex/source/api/content_registry.cpp

@@ -1391,4 +1391,23 @@ namespace hex {
 
     }
 
+    namespace ContentRegistry::Disassembler {
+
+        namespace impl {
+
+            static AutoReset<std::map<std::string, impl::CreatorFunction>> s_architectures;
+
+            void addArchitectureCreator(impl::CreatorFunction function) {
+                const auto arch = function();
+                (*s_architectures)[arch->getName()] = std::move(function);
+            }
+
+            const std::map<std::string, impl::CreatorFunction>& getArchitectures() {
+                return *s_architectures;
+            }
+
+        }
+
+    }
+
 }