Only use JIS->UTF8 conversion with new overlay.

Fix pixel font display.

external/imgui/snes9x_imgui.cpp

@@ -140,6 +140,30 @@ static void ImGui_DrawTextOverlay(const char *text,
     draw_list->AddText(nullptr, 0.0f, ImVec2(x + padding, y + padding), settings.text_color, text, nullptr, wrap_at);
 }
 
+static std::string sjis_to_utf8(std::string in)
+{
+    std::string out;
+    for (const auto &i : in)
+    {
+        unsigned char c = i;
+        if (c > 160 && c < 192)
+		{
+            out += "\357\275";
+			out += c;
+		}
+        else if (c >= 192)
+        {
+            out += "\357\276";
+            c -= 0x40;
+			out += c;
+        }
+        else
+            out += c;
+    }
+
+    return out;
+}
+
 bool S9xImGuiDraw(int width, int height)
 {
     if (Memory.ROMFilename.empty())
@@ -223,13 +247,16 @@ bool S9xImGuiDraw(int width, int height)
     }
 
     if (!GFX.InfoString.empty())
-        ImGui_DrawTextOverlay(GFX.InfoString.c_str(),
+    {
+        auto utf8_message = sjis_to_utf8(GFX.InfoString);
+        ImGui_DrawTextOverlay(utf8_message.c_str(),
                               settings.spacing,
                               height - settings.spacing,
                               settings.spacing,
                               ImGui::DrawTextAlignment::BEGIN,
                               ImGui::DrawTextAlignment::END,
                               width - settings.spacing * 4);
+    }
 
     ImGui::Render();
 

gfx.cpp

@@ -1818,7 +1818,7 @@ void S9xVariableDisplayString(const char* string, int linesFromBottom,	int pixel
 	int min_lines = 1;
 	std::string msg(string);
 	for (auto& c : msg)
-		if (c < 32)
+		if (c == '\n')
 			min_lines++;
 	if (min_lines > linesFromBottom)
 		linesFromBottom = min_lines;
@@ -1836,10 +1836,10 @@ void S9xVariableDisplayString(const char* string, int linesFromBottom,	int pixel
 
 	for (int i = 0; i < len; i++)
 	{
-		int cindex = string[i] - 32;
+		int cindex = (uint8)string[i] - 32;
 		int char_width = font_width - (monospace ? 1 : (var8x10font_kern[cindex][0] + var8x10font_kern[cindex][1]));
 
-		if (dst_x + char_width > SNES_WIDTH || (uint8)string[i] < 32)
+		if (dst_x + char_width > SNES_WIDTH || string[i] == '\n')
 		{
 			if (!allowWrap)
 				break;
@@ -1852,7 +1852,7 @@ void S9xVariableDisplayString(const char* string, int linesFromBottom,	int pixel
 				break;
 		}
 
-		if ((uint8)string[i] < 32)
+		if (string[i] == '\n')
 			continue;
 
 		VariableDisplayChar(dst_x, dst_y, string[i], monospace, overlap);

memmap.cpp

@@ -3377,37 +3377,13 @@ const char * CMemory::PublishingCompany (void)
 	return (nintendo_licensees[CompanyId]);
 }
 
-static std::string sjis_to_utf8(std::string in)
-{
-    std::string out;
-    for (const auto &i : in)
-    {
-        unsigned char c = i;
-        if (c > 160 && c < 192)
-		{
-            out += "\357\275";
-			out += c;
-		}
-        else if (c >= 192)
-        {
-            out += "\357\276";
-            c -= 0x40;
-			out += c;
-        }
-        else if (c >= 32)
-            out += c;
-    }
-
-    return out;
-}
-
 std::string CMemory::GetMultilineROMInfo()
 {
     bool8 isChecksumOK = (Memory.ROMChecksum + Memory.ROMComplementChecksum == 0xffff) &&
                          (Memory.ROMChecksum == Memory.CalculatedChecksum);
-    std::string utf8_romname = sjis_to_utf8(Memory.ROMName);
+    std::string utf8_romname = Memory.ROMName;
     std::string tvstandard = Settings.PAL ? "PAL" : "NTSC";
-	std::string romid = sjis_to_utf8(Memory.ROMId);
+	std::string romid = Memory.ROMId;
     std::string checksum = isChecksumOK              ? "Checksum OK"
                            : Settings.IsPatched == 3 ? "UPS patched"
                            : Settings.IsPatched == 2 ? "BPS patched"