Add messages for in-game emulation errors

src/citra_libretro/citra_libretro.cpp

@@ -261,7 +261,26 @@ void retro_run() {
     UpdateSettings(false);
 
     while(!emu_window->HasSubmittedFrame()) {
-        system_core.RunLoop();
+        auto result = system_core.RunLoop();
+
+        if (result != Core::System::ResultStatus::Success) {
+            std::string errorContent = Core::System::GetInstance().GetStatusDetails();
+            std::string msg;
+
+            switch(result) {
+                case Core::System::ResultStatus::ErrorSystemFiles:
+                    msg = "Citra was unable to locate a 3DS system archive: " + errorContent;
+                    break;
+                case Core::System::ResultStatus::ErrorSharedFont:
+                    msg = "Citra was unable to locate the 3DS shared fonts.";
+                    break;
+                default:
+                    msg = "Fatal Error encountered: " + errorContent;
+                    break;
+            }
+
+            LibRetro::DisplayMessage(msg.c_str());
+        }
     }
 }
 

src/citra_libretro/environment.cpp

@@ -69,7 +69,7 @@ bool Shutdown() {
 bool DisplayMessage(const char* sg) {
     retro_message msg;
     msg.msg = sg;
-    msg.frames = 180;
+    msg.frames = 60 * 10;
     return environ_cb(RETRO_ENVIRONMENT_SET_MESSAGE, &msg);
 }
 
@@ -122,8 +122,6 @@ void retro_set_input_state(retro_input_state_t cb) {
 }
 
 void retro_get_system_av_info(struct retro_system_av_info *info) {
-    LOG_INFO(Frontend, "Av go!");
-
     // These are placeholders until we get control.
     info->timing.fps = 60.0;
     info->timing.sample_rate = 41000;