RMG-Core: introduce & use ConvertStringEncoding

2026-07-23 15:14:01 +02:00 · 2022-12-08 13:42:53 +01:00
parent da3e30f735
commit b7df075dec
6 changed files with 132 additions and 4 deletions
@@ -0,0 +1,78 @@
+/*
+ * Rosalie's Mupen GUI - https://github.com/Rosalie241/RMG
+ *  Copyright (C) 2020 Rosalie Wanders <rosalie@mailbox.org>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 3.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+#define CORE_INTERNAL
+#include "ConvertStringEncoding.hpp"
+
+#include "Error.hpp"
+#include <string.h>
+#include <string>
+
+#include <iconv.h>
+
+//
+// Exported Functions
+//
+
+std::string CoreConvertStringEncoding(std::string str, CoreStringEncoding encoding)
+{
+    std::string error;
+    std::string encodingString;
+
+    iconv_t cd;
+
+    char inputBuf[256] = {0};
+    char outputBuf[256] = {0};
+
+    char* inputBufPtr = (char*)str.c_str();
+    char* outputBufPtr = outputBuf;
+
+    size_t inputBufSize = str.size();
+    size_t outputBufSize = sizeof(outputBuf);
+
+    if (encoding == CoreStringEncoding::EUC_JP)
+    {
+        encodingString = "EUC-JP";
+    }
+    else
+    {
+        encodingString = "Shift_JIS";
+    }
+
+    cd = iconv_open("UTF-8//TRANSLIT//IGNORE", encodingString.c_str());
+    if (cd == (iconv_t)-1)
+    {
+        error = "CoreConvertStringEncoding Failed: ";
+        error += "iconv_open Failed: ";
+        error += errno;
+        CoreSetError(error);
+        return str;
+    }
+
+    size_t ret = iconv(cd, &inputBufPtr, &inputBufSize, &outputBufPtr, &outputBufSize);
+    if (ret == -1)
+    {
+        error = "CoreConvertStringEncoding Failed: ";
+        error += "iconv Failed: ";
+        error += errno;
+        CoreSetError(error);
+
+        // reset iconv
+        iconv(cd, nullptr, nullptr, nullptr, nullptr);
+        iconv_close(cd);
+
+        return str;
+    }
+
+    // reset iconv
+    iconv(cd, nullptr, nullptr, nullptr, nullptr);
+    iconv_close(cd);
+
+    return std::string(outputBuf);
+}