diff options
| -rw-r--r-- | gameDetector.cpp | 1 | ||||
| -rw-r--r-- | sound/mididrv.cpp | 131 |
2 files changed, 132 insertions, 0 deletions
diff --git a/gameDetector.cpp b/gameDetector.cpp index 416d4a439d..ef04db4df2 100644 --- a/gameDetector.cpp +++ b/gameDetector.cpp @@ -449,6 +449,7 @@ MidiDriver *GameDetector::createMidi() { #ifdef __MORPHOS__ case MD_AMIDI: return MidiDriver_AMIDI_create(); #endif + case MD_SEQ: return MidiDriver_SEQ_create(); } error("Invalid midi driver selected"); diff --git a/sound/mididrv.cpp b/sound/mididrv.cpp index 5e59e3f81f..9002ded512 100644 --- a/sound/mididrv.cpp +++ b/sound/mididrv.cpp @@ -347,6 +347,137 @@ MidiDriver *MidiDriver_AMIDI_create() { #endif // __MORPHOS__ +#define SEQ_MIDIPUTC 5 +#define SPECIAL_CHANNEL 9 +#define DEVICE_NUM 1 + +class MidiDriver_SEQ : public MidiDriver { +public: + MidiDriver_SEQ(); + void destroy(); + int open(int mode); + void close(); + void send(uint32 b); + void pause(bool pause); + void set_stream_callback(void *param, StreamCallback *sc); + +private: + StreamCallback *_stream_proc; + void *_stream_param; + int _mode; + uint16 _time_div; + int device; + uint32 property(int prop, uint32 param); +}; + +MidiDriver_SEQ::MidiDriver_SEQ(){ + _mode=0; + device=0; +} + +int MidiDriver_SEQ::open(int mode) { + if (_mode != 0) + return MERR_ALREADY_OPEN; + device = 0; + _mode=mode; + if (mode!=MO_SIMPLE) return MERR_STREAMING_NOT_AVAILABLE; +#if !defined(__APPLE__CW) // No getenv support on Apple Carbon + char *device_name = getenv("SCUMMVM_MIDI"); + if (device_name != NULL) { + device = (::open((device_name), O_RDWR, 0)); + } else { + warning("You need to set-up the SCUMMVM_MIDI environment variable properly (see readme.txt) "); + } + if ((device_name == NULL) || (device < 0)) { + if (device_name == NULL) + warning("Opening /dev/null (no music will be heard) "); + else + warning("Cannot open rawmidi device %s - using /dev/null (no music will be heard) ", device_name); + device = (::open(("/dev/null"), O_RDWR, 0)); + if (device < 0) + error("Cannot open /dev/null to dump midi output"); + } +#endif + return 0; +} + +void MidiDriver_SEQ::close() { + ::close(device); + _mode = 0; +} + + +void MidiDriver_SEQ::send(uint32 b) +{ + unsigned char buf[256]; + int position = 0; + + switch (b & 0xF0) { + case 0x80: + case 0x90: + case 0xA0: + case 0xB0: + case 0xE0: + buf[position++] = SEQ_MIDIPUTC; + buf[position++] = b; + buf[position++] = DEVICE_NUM; + buf[position++] = 0; + buf[position++] = SEQ_MIDIPUTC; + buf[position++] = (b >> 8) & 0x7F; + buf[position++] = DEVICE_NUM; + buf[position++] = 0; + buf[position++] = SEQ_MIDIPUTC; + buf[position++] = (b >> 16) & 0x7F; + buf[position++] = DEVICE_NUM; + buf[position++] = 0; + break; + case 0xC0: + case 0xD0: + buf[position++] = SEQ_MIDIPUTC; + buf[position++] = b; + buf[position++] = DEVICE_NUM; + buf[position++] = 0; + buf[position++] = SEQ_MIDIPUTC; + buf[position++] = (b >> 8) & 0x7F; + buf[position++] = DEVICE_NUM; + buf[position++] = 0; + break; + default: + fprintf(stderr, "Unknown : %08x\n", (int) b); + break; + } + write(device, buf, position); +} + +void MidiDriver_SEQ::pause(bool pause) { + if (_mode == MO_STREAMING) { + } +} + +void MidiDriver_SEQ::set_stream_callback(void *param, StreamCallback *sc) { + _stream_param = param; + _stream_proc = sc; +} + +MidiDriver *MidiDriver_SEQ_create() { + return new MidiDriver_SEQ(); +} + +void MidiDriver_SEQ::destroy() { + close(); + delete this; +} + +uint32 MidiDriver_SEQ::property(int prop, uint32 param) { + switch(prop) { + /* 16-bit time division according to standard midi specification */ + case PROP_TIMEDIV: + _time_div = (uint16)param; + return 1; + } + + return 0; +} /* NULL driver */ class MidiDriver_NULL : public MidiDriver { |