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diff --git a/sound/softsynth/mt32/synth.h b/sound/softsynth/mt32/synth.h
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+/* Copyright (c) 2003-2004 Various contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef MT32EMU_SYNTH_H
+#define MT32EMU_SYNTH_H
+
+#include <stdarg.h>
+
+class revmodel;
+
+namespace MT32Emu {
+
+const int ROMSIZE = 512 * 1024;
+const int PCMSIZE = ROMSIZE / 2;
+const int GRAN = 512;
+
+class File;
+class TableInitialiser;
+class Partial;
+class PartialManager;
+class Part;
+
+enum ReportType {
+	// Errors
+	ReportType_errorControlROM = 1,
+	ReportType_errorPCMROM,
+	ReportType_errorSampleRate,
+
+	// Progress
+	ReportType_progressInit,
+
+	// HW spec
+	ReportType_availableSSE,
+	ReportType_available3DNow,
+	ReportType_usingSSE,
+	ReportType_using3DNow,
+
+	// General info
+	ReportType_lcdMessage,
+	ReportType_devReset,
+	ReportType_devReconfig,
+	ReportType_newReverbMode,
+	ReportType_newReverbTime,
+	ReportType_newReverbLevel
+};
+
+struct SynthProperties {
+	// Sample rate to use in mixing
+	int sampleRate;
+
+	// Flag to activate reverb.  True = use reverb, False = no reverb
+	bool useReverb;
+	// True to use software set reverb settings, False to set reverb settings in
+	// following parameters
+	bool useDefaultReverb;
+	// When not using the default settings, this specifies one of the 4 reverb types
+	// 1 = Room 2 = Hall 3 = Plate 4 = Tap
+	unsigned char reverbType;
+	// This specifies the delay time, from 0-7 (not sure of the actual MT-32's measurement)
+	unsigned char reverbTime;
+	// This specifies the reverb level, from 0-7 (not sure of the actual MT-32's measurement)
+	unsigned char reverbLevel;
+	// The name of the directory in which the ROM and data files are stored (with trailing slash/backslash)
+	// Not used if "openFile" is set. May be NULL in any case.
+	char *baseDir;
+	// This is used as the first argument to all callbacks
+	void *userData;
+	// Callback for reporting various errors and information. May be NULL
+	int (*report)(void *userData, ReportType type, const void *reportData);
+	// Callback for debug messages, in vprintf() format
+	void (*printDebug)(void *userData, const char *fmt, va_list list);
+	// Callback for providing an implementation of File, opened and ready for use
+	// May be NULL, in which case a default implementation will be used.
+	File *(*openFile)(void *userData, const char *filename, File::OpenMode mode);
+	// Callback for closing a File. May be NULL, in which case the File will automatically be close()d/deleted.
+	void (*closeFile)(void *userData, File *file);
+};
+
+// This is the specification of the Callback routine used when calling the RecalcWaveforms
+// function
+typedef void (*recalcStatusCallback)(int percDone);
+
+// This external function recreates the base waveform file (waveforms.raw) using a specifed
+// sampling rate.  The callback routine provides interactivity to let the user know what
+// percentage is complete in regenerating the waveforms.  When a NULL pointer is used as the
+// callback routine, no status is reported.
+bool RecalcWaveforms(char * baseDir, int sampRate, recalcStatusCallback callBack);
+
+typedef float (*iir_filter_type)(float input,float *hist1_ptr, float *coef_ptr, int revLevel);
+
+class Synth {
+friend class Part;
+friend class RhythmPart;
+friend class Partial;
+friend class TableInitialiser;
+private:
+	bool isEnabled;
+
+	iir_filter_type iirFilter;
+
+	PCMWaveEntry PCMList[128];
+
+	Bit8u controlROMData[64 * 1024];
+	Bit16s romfile[PCMSIZE + GRAN];
+	Bit8s chantable[32];
+
+	#if MT32EMU_MONITOR_PARTIALS == 1
+	static Bit32s samplepos = 0;
+	#endif
+
+	MemParams mt32ram, mt32default;
+
+	revmodel *reverbModel;
+
+	float masterTune;
+	Bit16u masterVolume;
+
+	bool isOpen;
+
+	PartialManager *partialManager;
+	Part *parts[9];
+
+	Bit16s tmpBuffer[MAX_SAMPLE_OUTPUT * 2];
+	float sndbufl[MAX_SAMPLE_OUTPUT];
+	float sndbufr[MAX_SAMPLE_OUTPUT];
+	float outbufl[MAX_SAMPLE_OUTPUT];
+	float outbufr[MAX_SAMPLE_OUTPUT];
+
+	SynthProperties myProp;
+
+	bool loadPreset(File *file);
+	void initReverb(Bit8u newRevMode, Bit8u newRevTime, Bit8u newRevLevel);
+	void doRender(Bit16s * stream, Bit32u len);
+	void playMsgOnPart(unsigned char part, unsigned char code, unsigned char note, unsigned char velocity);
+	void playSysexWithoutHeader(unsigned char channel, const Bit8u *sysex, Bit32u len);
+
+	bool loadControlROM(const char *filename);
+	bool loadPCMROM(const char *filename);
+	bool dumpTimbre(File *file, const TimbreParam *timbre, Bit32u addr);
+	int dumpTimbres(const char *filename, int start, int len);
+
+	void initPCMList();
+	void initRhythmTimbres();
+	void initTimbres(Bit16u mapAddress, int startTimbre);
+	void initRhythmTimbre(int drumNum, const Bit8u *mem);
+	bool refreshSystem();
+protected:
+	int report(ReportType type, const void *reportData);
+	File *openFile(const char *filename, File::OpenMode mode);
+	void closeFile(File *file);
+	void printDebug(const char *fmt, ...);
+
+public:
+	static Bit8u calcSysexChecksum(const Bit8u *data, Bit32u len, Bit8u checksum);
+
+	Synth();
+	~Synth();
+
+	// Used to initialise the MT-32. Must be called before any other function.
+	// Returns true if initialization was sucessful, otherwise returns false.
+	bool open(SynthProperties &useProp);
+
+	// Closes the MT-32 and deallocates any memory used by the synthesizer
+	void close(void);
+
+	// Sends a 4-byte MIDI message to the MT-32 for immediate playback
+	void playMsg(Bit32u msg);
+
+	// Sends a string of Sysex commands to the MT-32 for immediate interpretation
+	// The length is in bytes
+	void playSysex(const Bit8u *sysex, Bit32u len);
+	void playSysexWithoutFraming(const Bit8u *sysex, Bit32u len);
+
+	// This callback routine is used to have the MT-32 generate samples to the specified
+	// output stream.  The length is in whole samples, not bytes. (I.E. in 16-bit stereo,
+	// one sample is 4 bytes)
+	void render(Bit16s * stream, Bit32u len);
+};
+
+}
+
+#endif