Adding support for utf-8 text and file I/O under Windows. Requires newer Windows builds:

https://learn.microsoft.com/en-us/windows/apps/design/globalizing/use-utf8-code-page

basisu.vcxproj

@@ -228,6 +228,9 @@
     <None Include="transcoder\basisu_transcoder_tables_dxt1_5.inc" />
     <None Include="transcoder\basisu_transcoder_tables_dxt1_6.inc" />
   </ItemGroup>
+  <ItemGroup>
+    <Manifest Include="basisu.manifest" />
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>

basisu.vcxproj.filters

@@ -198,4 +198,7 @@
       <UniqueIdentifier>{ab12ac82-9c39-494d-a36b-129dd1b2dec5}</UniqueIdentifier>
     </Filter>
   </ItemGroup>
+  <ItemGroup>
+    <Manifest Include="basisu.manifest" />
+  </ItemGroup>
 </Project>

basisu_tool.cpp

@@ -32,6 +32,10 @@
 #define MINIZ_NO_ZLIB_COMPATIBLE_NAMES
 #include "encoder/basisu_miniz.h"
 
+#ifdef _WIN32
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#endif
 // Set BASISU_CATCH_EXCEPTIONS if you want exceptions to crash the app, otherwise main() catches them.
 #ifndef BASISU_CATCH_EXCEPTIONS
 	#define BASISU_CATCH_EXCEPTIONS 0
@@ -40,7 +44,7 @@
 using namespace basisu;
 using namespace buminiz;
 
-#define BASISU_TOOL_VERSION "1.16.3"
+#define BASISU_TOOL_VERSION "1.16.4"
 
 enum tool_mode
 {
@@ -4499,6 +4503,9 @@ static int main_internal(int argc, const char **argv)
 
 int main(int argc, const char** argv)
 {
+#ifdef _WIN32
+	SetConsoleOutputCP(CP_UTF8);
+#endif
 #ifdef _DEBUG
 	printf("DEBUG\n");
 #endif