Add support for Fallout 4 next-gen update BA2s

components/bsa/ba2dx10file.cpp

@@ -116,16 +116,19 @@ namespace Bsa
             if (header[0] == 0x00415342) /*"BSA\x00"*/
                 fail("Unrecognized compressed BSA format");
             mVersion = header[1];
-            if (mVersion != 0x01 /*FO4*/ && mVersion != 0x02 /*Starfield*/)
-                fail("Unrecognized compressed BSA version");
+            switch (static_cast<BA2Version>(mVersion))
+            {
+                case BA2Version::Fallout4:
+                case BA2Version::Fallout4NG:
+                    break;
+                case BA2Version::StarfieldDDS:
+                    fail("Unsupported DDS BA2 version");
+                default:
+                    fail("Unrecognized DDS BA2 version");
+            }
 
             type = header[2];
             fileCount = header[3];
-            if (mVersion == 0x02)
-            {
-                uint64_t dummy;
-                input.read(reinterpret_cast<char*>(&dummy), 8);
-            }
         }
 
         if (type == ESM::fourCC("DX10"))

components/bsa/ba2file.hpp

@@ -8,6 +8,15 @@ namespace Bsa
 {
     uint32_t generateHash(const std::string& name);
     uint32_t generateExtensionHash(std::string_view extension);
+
+    enum class BA2Version : std::uint32_t
+    {
+        Fallout4 = 1,
+        StarfieldGeneral = 2,
+        StarfieldDDS = 3,
+        Fallout4NG = 7,
+        Fallout4NG2 = 8,
+    };
 }
 
 #endif

components/bsa/ba2gnrlfile.cpp

@@ -110,16 +110,22 @@ namespace Bsa
             if (header[0] == 0x00415342) /*"BSA\x00"*/
                 fail("Unrecognized compressed BSA format");
             mVersion = header[1];
-            if (mVersion != 0x01 /*FO4*/ && mVersion != 0x02 /*Starfield*/)
-                fail("Unrecognized compressed BSA version");
+            switch (static_cast<BA2Version>(mVersion))
+            {
+                case BA2Version::Fallout4:
+                case BA2Version::Fallout4NG:
+                case BA2Version::Fallout4NG2:
+                    break;
+                case BA2Version::StarfieldGeneral:
+                    uint64_t dummy;
+                    input.read(reinterpret_cast<char*>(&dummy), 8);
+                    break;
+                default:
+                    fail("Unrecognized general BA2 version");
+            }
 
             type = header[2];
             fileCount = header[3];
-            if (mVersion == 0x02)
-            {
-                uint64_t dummy;
-                input.read(reinterpret_cast<char*>(&dummy), 8);
-            }
         }
 
         if (type == ESM::fourCC("GNRL"))