- thinned out the FSoundFontReader interface a bit more by moving the file open code into the FSoundFontReader class itself.

src/sound/music/i_soundfont.cpp

@@ -39,6 +39,7 @@
 #include "i_system.h"
 #include "gameconfigfile.h"
 #include "resourcefiles/resourcefile.h"
+#include "timiditypp/common.h"
 
 FSoundFontManager sfmanager;
 
@@ -97,6 +98,44 @@ int FSoundFontReader::pathcmp(const char *p1, const char *p2)
 	return mCaseSensitivePaths? strcmp(p1, p2) : stricmp(p1, p2);
 }
 
+
+FileReader FSoundFontReader::Open(const char *name, std::string& filename)
+{
+	FileReader fr;
+	if (name == nullptr)
+	{
+		fr = OpenMainConfigFile();
+		filename = MainConfigFileName();
+	}
+	else
+	{
+		auto res = LookupFile(name);
+		fr = std::move(res.first);
+		filename = res.second;
+	}
+	return fr;
+}
+
+//==========================================================================
+//
+// This is the interface function for Timidity++
+//
+//==========================================================================
+
+struct TimidityPlus::timidity_file* FSoundFontReader::open_timidity_file(const char* name)
+{
+	std::string filename;
+
+	FileReader fr = Open(name, filename);
+	if (!fr.isOpen()) return nullptr;
+
+	auto tf = new TimidityPlus::timidity_file;
+	tf->url = std::move(fr);
+	tf->filename = std::move(filename);
+	return tf;
+}
+
+
 //==========================================================================
 //
 // Note that the file type has already been checked

src/sound/music/i_soundfont.h

@@ -20,6 +20,10 @@ struct FSoundFontInfo
     int type;
 };
 
+namespace TimidityPlus
+{
+	struct timidity_file;
+}
 //==========================================================================
 //
 //
@@ -56,6 +60,9 @@ public:
 	{
 		return "";	// archived patch sets do not use paths
 	}
+
+	virtual FileReader Open(const char* name, std::string &filename);
+	virtual struct TimidityPlus::timidity_file* open_timidity_file(const char* name);
 };
 
 //==========================================================================

src/sound/timiditypp/common.cpp

@@ -129,25 +129,7 @@ double flt_rand()
 
 struct timidity_file *open_file(const char *name, SoundFontReaderInterface *sfreader)
 {
-    FileReader fr;
-    FString filename;
-    if (name == nullptr)
-    {
-        fr = sfreader->OpenMainConfigFile();
-		filename = sfreader->MainConfigFileName();
-    }
-    else
-    {
-        auto res = sfreader->LookupFile(name);
-        fr = std::move(res.first);
-        filename = res.second;
-    }
-    if (!fr.isOpen()) return nullptr;
-    
-	auto tf = new timidity_file;
-	tf->url = std::move(fr);
-	tf->filename = filename.GetChars();
-	return tf;
+	return sfreader->open_timidity_file(name);
 }
 
 /* This closes files opened with open_file */

src/sound/timiditypp/timidity.h

@@ -170,6 +170,5 @@ const int max_voices = DEFAULT_VOICES;
 const int temper_type_mute = 0;
 const int opt_preserve_silence = 0;
 const int opt_init_keysig = 8;
-
 }
 #endif /* TIMIDITY_H_INCLUDED */