common: Rewrite logging based on cut down citra logger (#86)

* common: Rewrite logging based on cut down Citra logger

* code: Misc fixes

* core: Bring back tls handler

* linker: Cleanup

* config: Remove log level

* logging: Enable console output by default

* core: Fix windows build

src/common/string_util.cpp

@@ -6,6 +6,11 @@
 #include <sstream>
 #include <string>
 #include "common/string_util.h"
+#include "common/types.h"
+
+#ifdef _WIN32
+#include <windows.h>
+#endif
 
 namespace Common {
 
@@ -21,4 +26,46 @@ std::vector<std::string> SplitString(const std::string& str, char delimiter) {
     return output;
 }
 
+#ifdef _WIN32
+static std::wstring CPToUTF16(u32 code_page, std::string_view input) {
+    const auto size =
+        MultiByteToWideChar(code_page, 0, input.data(), static_cast<int>(input.size()), nullptr, 0);
+
+    if (size == 0) {
+        return {};
+    }
+
+    std::wstring output(size, L'\0');
+
+    if (size != MultiByteToWideChar(code_page, 0, input.data(), static_cast<int>(input.size()),
+                                    &output[0], static_cast<int>(output.size()))) {
+        output.clear();
+    }
+
+    return output;
+}
+
+std::string UTF16ToUTF8(std::wstring_view input) {
+    const auto size = WideCharToMultiByte(CP_UTF8, 0, input.data(), static_cast<int>(input.size()),
+                                          nullptr, 0, nullptr, nullptr);
+    if (size == 0) {
+        return {};
+    }
+
+    std::string output(size, '\0');
+
+    if (size != WideCharToMultiByte(CP_UTF8, 0, input.data(), static_cast<int>(input.size()),
+                                    &output[0], static_cast<int>(output.size()), nullptr,
+                                    nullptr)) {
+        output.clear();
+    }
+
+    return output;
+}
+
+std::wstring UTF8ToUTF16W(std::string_view input) {
+    return CPToUTF16(CP_UTF8, input);
+}
+#endif
+
 } // namespace Common