add /coders/compression module

src/coders/compression.hpp

@@ -0,0 +1,30 @@
+#pragma once
+
+#include <memory>
+
+#include "typedefs.hpp"
+
+namespace compression {
+    enum class Method {
+        NONE, EXTRLE8, GZIP
+    };
+
+    /// @brief Compress buffer
+    /// @param src source buffer
+    /// @param srclen length of the source buffer
+    /// @param len (out argument) length of result buffer
+    /// @param method compression method
+    /// @return compressed bytes array
+    /// @throws std::invalid_argument if compression method is NONE
+    std::unique_ptr<ubyte[]> compress(
+        const ubyte* src, size_t srclen, size_t& len, Method method
+    );
+
+    /// @brief Decompress buffer
+    /// @param src compressed buffer
+    /// @param srclen length of compressed buffer
+    /// @param dstlen max expected length of source buffer
+    /// @return decompressed bytes array
+    std::unique_ptr<ubyte[]> decompress(
+        const ubyte* src, size_t srclen, size_t dstlen, Method method);
+}