formatter (#259)

* eChannelGroupFormatter

* update version

* code rev

* fix  switch fallthrouh

CMakeLists.txt

@@ -5,7 +5,7 @@ if(DEFINED ENV{VCPKG_ROOT} AND NOT DEFINED CMAKE_TOOLCHAIN_FILE)
 endif()
 
 
-project ("sdl2-hyper-sonic-drivers" VERSION 0.12.0 DESCRIPTION "SDL2 based Hyper-Sonic Drivers for emulating old soundcards")
+project ("sdl2-hyper-sonic-drivers" VERSION 0.12.1 DESCRIPTION "SDL2 based Hyper-Sonic Drivers for emulating old soundcards")
 include (TestBigEndian)
 TEST_BIG_ENDIAN(IS_BIG_ENDIAN)
 if(IS_BIG_ENDIAN)

sdl2-hyper-sonic-drivers/src/std/eChannelGroupFormatter.hpp

@@ -0,0 +1,41 @@
+#pragma once
+
+#include <string>
+#include <format>
+#include <HyperSonicDrivers/audio/mixer/ChannelGroup.hpp>
+
+namespace std
+{
+    template<>
+    struct formatter<HyperSonicDrivers::audio::mixer::eChannelGroup> : formatter<string_view>
+    {
+        template<typename FormatContext>
+        auto format(HyperSonicDrivers::audio::mixer::eChannelGroup ch_group, FormatContext& fc) const
+        {
+            string str;
+
+            switch (ch_group)
+            {
+                using enum HyperSonicDrivers::audio::mixers::eChannelGroup;
+
+            case Plain:
+                str = "Plain";
+                break;
+            case Music:
+                str = "Music";
+                break;
+            case Sfx:
+                str = "Sfx";
+                break;
+            case Speech:
+                str = "Speech";
+                break;
+            case Unknown:
+                str = "Unknown";
+                break;
+            }
+
+            return formatter<std::string_view>::format(str, fc);
+        }
+    };
+}