Add comments

components/bsa/ba2gnrlfile.cpp

@@ -29,7 +29,6 @@
 namespace Bsa
 {
     // special marker for invalid records,
-    // equal to max uint32_t value
     const uint32_t sInvalidOffset = std::numeric_limits<uint32_t>::max();
 
     BA2GNRLFile::FileRecord::FileRecord()
@@ -108,7 +107,7 @@ namespace Bsa
             if (header[0] == 0x00415342) /*"BSA\x00"*/
                 fail("Unrecognized compressed BSA format");
             mVersion = header[1];
-            if (mVersion != 0x01 /*F04*/)
+            if (mVersion != 0x01 /*FO4*/)
                 fail("Unrecognized compressed BSA version");
 
             type = header[2];

components/bsa/bsa_file.cpp

@@ -365,6 +365,7 @@ BsaVersion Bsa::BSAFile::detectVersion(const std::filesystem::path& filePath)
 
     if (head[0] == ESM::fourCC("BTDX"))
     {
+        // head[1] should contains 0x01 it is checked if we want to open this kind of archive
         if (head[2] == ESM::fourCC("GNRL"))
             return BSAVER_BA2_GNRL;
         if (head[2] == ESM::fourCC("DX10"))

components/bsa/bsa_file.hpp

@@ -40,8 +40,8 @@ namespace Bsa
         BSAVER_UNKNOWN = 0x0,
         BSAVER_UNCOMPRESSED = 0x100,
         BSAVER_COMPRESSED = 0x415342, // B, S, A,
-        BSAVER_BA2_GNRL,
+        BSAVER_BA2_GNRL, // used by FO4, BSA which contains files
-        BSAVER_BA2_DX10
+        BSAVER_BA2_DX10 // used by FO4, BSA which contains textures
     };
 
     /**