Improves return types with Progress type

include/PSX/Auxiliary/lz4_decompressor.hpp

@@ -1,7 +1,32 @@
 #ifndef __JABYENGINE_LZ4_DECOMPRESSOR_HPP__
 #define __JABYENGINE_LZ4_DECOMPRESSOR_HPP__
+#include "../../stddef.h"
+#include "types.hpp"
 
 namespace JabyEngine {
+    class LZ4Decompressor {
+    public:
+        enum struct Result {
+            InProgress = 0,
+            Done,
+            Error
+        };
+
+    private:
+        struct State {};
+
+    private:
+        uint8_t* dst_adr = nullptr;
+        State    state;
+
+    public:
+        LZ4Decompressor() = default;
+
+        void setup(uint8_t* dst_adr);
+        void reset();
+
+        Progress process(const uint8_t* data, size_t size);
+    };
 }
 
 #endif //!__JABYENGINE_LZ4_DECOMPRESSOR_HPP__