feat(gx): add static conversion tables to CGxFormat

src/gx/CGxFormat.cpp

@@ -0,0 +1,23 @@
+#include "gx/CGxFormat.hpp"
+
+const char* CGxFormat::formatToBitsString[] = {
+    "16", // Fmt_Rgb565
+    "24", // Fmt_ArgbX888
+    "24", // Fmt_Argb8888
+    "30", // Fmt_Argb2101010
+    "16", // Fmt_Ds160
+    "24", // Fmt_Ds24X
+    "24", // Fmt_Ds248
+    "32", // Fmt_Ds320
+};
+
+int32_t CGxFormat::formatToBitsUint[] = {
+    16, // Fmt_Rgb565
+    24, // Fmt_ArgbX888
+    24, // Fmt_Argb8888
+    30, // Fmt_Argb2101010
+    16, // Fmt_Ds160
+    24, // Fmt_Ds24X
+    24, // Fmt_Ds248
+    32, // Fmt_Ds320
+};

src/gx/CGxFormat.hpp

@@ -19,6 +19,10 @@ class CGxFormat {
             Formats_Last = 8
         };
 
+        // Static variables
+        static int32_t formatToBitsUint[Formats_Last];
+        static const char* formatToBitsString[Formats_Last];
+
         // Member variables
         bool hwTnL;
         int8_t window;