make firmware settings override also apply in DSi mode

src/DSi.cpp

@@ -816,7 +816,7 @@ bool LoadNAND()
     memcpy(&ARM7Init[0x0254], &ARM7iBIOS[0xC6D0], 0x1048);
     memcpy(&ARM7Init[0x129C], &ARM7iBIOS[0xD718], 0x1048);
 
-    DSi_NAND::PatchTSC();
+    DSi_NAND::PatchUserData();
 
     DSi_NAND::DeInit();
 

src/DSi_NAND.cpp

@@ -21,6 +21,7 @@
 #include "DSi.h"
 #include "DSi_AES.h"
 #include "DSi_NAND.h"
+#include "Platform.h"
 
 #include "sha1/sha1.hpp"
 #include "tiny-AES-c/aes.hpp"
@@ -510,7 +511,7 @@ void ReadUserData(u8* data)
     f_close(&file);
 }
 
-void PatchTSC()
+void PatchUserData()
 {
     FRESULT res;
 
@@ -532,6 +533,36 @@ void PatchTSC()
         f_lseek(&file, 0);
         f_read(&file, contents, 0x1B0, &nres);
 
+        // override user settings, if needed
+        if (Platform::GetConfigBool(Platform::Firm_OverrideSettings))
+        {
+            // setting up username
+            std::string orig_username = Platform::GetConfigString(Platform::Firm_Username);
+            std::u16string username = std::wstring_convert<std::codecvt_utf8_utf16<char16_t>, char16_t>{}.from_bytes(orig_username);
+            size_t usernameLength = std::min(username.length(), (size_t) 10);
+            memset(contents + 0xD0, 0, 11 * sizeof(char16_t));
+            memcpy(contents + 0xD0, username.data(), usernameLength * sizeof(char16_t));
+
+            // setting language
+            contents[0x8E] = Platform::GetConfigInt(Platform::Firm_Language);
+
+            // setting up color
+            contents[0xCC] = Platform::GetConfigInt(Platform::Firm_Color);
+
+            // setting up birthday
+            contents[0xCE] = Platform::GetConfigInt(Platform::Firm_BirthdayMonth);
+            contents[0xCF] = Platform::GetConfigInt(Platform::Firm_BirthdayDay);
+
+            // setup message
+            std::string orig_message = Platform::GetConfigString(Platform::Firm_Message);
+            std::u16string message = std::wstring_convert<std::codecvt_utf8_utf16<char16_t>, char16_t>{}.from_bytes(orig_message);
+            size_t messageLength = std::min(message.length(), (size_t) 26);
+            memset(contents + 0xE6, 0, 27 * sizeof(char16_t));
+            memcpy(contents + 0xE6, message.data(), messageLength * sizeof(char16_t));
+
+            // TODO: make other items configurable?
+        }
+
         // fix touchscreen coords
         *(u16*)&contents[0xB8] = 0;
         *(u16*)&contents[0xBA] = 0;

src/DSi_NAND.h

@@ -42,7 +42,7 @@ void GetIDs(u8* emmc_cid, u64& consoleid);
 void ReadHardwareInfo(u8* dataS, u8* dataN);
 
 void ReadUserData(u8* data);
-void PatchTSC();
+void PatchUserData();
 
 void ListTitles(u32 category, std::vector<u32>& titlelist);
 bool TitleExists(u32 category, u32 titleid);