[Feat] (MG_Backend/DirectVulkan): support macOS Metal surfaces

android-plugin/app/src/trace/cpp/trace_replay_core.cpp

@@ -128,6 +128,7 @@ bool LoadMobileGL(const Request& request, std::string& error) {
     setenv("MOBILEGL_BACKEND_TYPE", request.backend.c_str(), 1);
     setenv("MOBILEGL_TRACE_LIBRARY", request.mobileGlLibrary.c_str(), 1);
     setenv("MOBILEGL_TRACE_SKIP_AUTODESTROY", "1", 1);
+    setenv("MOBILEGL_TRACE_SURFACE", request.usePbuffer ? "pbuffer" : "window", 1);
     if (UseAngleForRequest(request)) {
         setenv("MOBILEGL_RETRACE_USE_ANGLE", "1", 1);
         if (!request.angleLibraryDir.empty()) {

android-plugin/app/src/trace/cpp/trace_replay_core.hpp

@@ -34,7 +34,7 @@ struct Request {
     int cropHeight = 0;
     double ssimThreshold = 0.99;
     bool useAngle = false;
-    bool usePbuffer = false;
+    bool usePbuffer = true;
 };
 
 struct Result {