[Scummvm-cvs-logs] CVS: scummvm/sound midiparser_smf.cpp,1.1,1.2 midiparser_xmidi.cpp,1.2,1.3 module.mk,1.5,1.6
Jamieson Christian
jamieson630 at users.sourceforge.net
Sun May 18 16:56:23 CEST 2003
Update of /cvsroot/scummvm/scummvm/sound
In directory sc8-pr-cvs1:/tmp/cvs-serv6838/sound
Modified Files:
midiparser_smf.cpp midiparser_xmidi.cpp module.mk
Log Message:
Implemented new Simon MIDI module, switching from MidiStreamer to MidiParser. Restructuring enables XMIDI support and vc_72 implementation. Various cleanup on MidiParser's and MidiDriver's.
Index: midiparser_smf.cpp
===================================================================
RCS file: /cvsroot/scummvm/scummvm/sound/midiparser_smf.cpp,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -d -r1.1 -r1.2
--- midiparser_smf.cpp 18 May 2003 23:36:38 -0000 1.1
+++ midiparser_smf.cpp 18 May 2003 23:55:53 -0000 1.2
@@ -48,8 +48,6 @@
uint32 _ppqn;
uint32 _psec_per_tick; // Microseconds per delta tick
- int _lock;
-
protected:
uint32 read4high (byte * &data) {
uint32 val = 0;
@@ -109,16 +107,9 @@
}
void MidiParser_SMF::onTimer() {
- if (_lock++) {
- --_lock;
- return;
- }
-
if (!_play_pos || !_driver)
return;
-
playToTime (_play_time + _timer_rate, true);
- _lock = 0;
}
void MidiParser_SMF::playToTime (uint32 psec, bool transmit) {
@@ -215,7 +206,6 @@
if (transmit) {
_driver->metaEvent (event, pos, (uint16) length);
}
- _lock = 0;
return;
} else if (event == 0x51) {
if (length >= 3) {
@@ -238,8 +228,6 @@
_play_pos = pos;
}
-// This code was adapted from the exult methods
-// XMIDI::ExtractTracks and XMIDI::ExtractTracksFromXmi
bool MidiParser_SMF::loadMusic (byte *data, uint32 size) {
uint32 len;
bool isGMD = false; // Indicates an older GMD file without block headers
@@ -465,9 +453,6 @@
}
void MidiParser_SMF::unloadMusic() {
- while (_lock);
- ++_lock;
-
_play_pos = NULL;
_data = NULL;
_num_tracks = 0;
@@ -476,8 +461,6 @@
_last_event_time = 0;
_running_status = 0;
allNotesOff();
-
- _lock = 0;
}
void MidiParser_SMF::setTrack (byte track) {
Index: midiparser_xmidi.cpp
===================================================================
RCS file: /cvsroot/scummvm/scummvm/sound/midiparser_xmidi.cpp,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -d -r1.2 -r1.3
--- midiparser_xmidi.cpp 18 May 2003 14:50:10 -0000 1.2
+++ midiparser_xmidi.cpp 18 May 2003 23:55:53 -0000 1.3
@@ -51,8 +51,6 @@
NoteTimer _notes_cache[32];
- int _lock;
-
protected:
uint32 read4high (byte * &data) {
uint32 val = 0;
@@ -69,8 +67,10 @@
uint32 readVLQ (byte * &data);
uint32 readVLQ2 (byte * &data);
+ void playToTime (uint32 psec, bool transmit);
+
public:
- bool loadMusic (byte *data);
+ bool loadMusic (byte *data, uint32 size);
void unloadMusic();
void setMidiDriver (MidiDriver *driver) { _driver = driver; }
@@ -130,6 +130,12 @@
}
void MidiParser_XMIDI::onTimer() {
+ if (!_play_pos || !_driver)
+ return;
+ playToTime (_play_time + _timer_rate, true);
+}
+
+void MidiParser_XMIDI::playToTime (uint32 psec, bool transmit) {
uint32 delta;
uint32 end_time;
uint32 event_time;
@@ -143,15 +149,7 @@
byte vel;
uint32 note_length;
- if (_lock++) {
- --_lock;
- return;
- }
-
- if (!_play_pos || !_driver)
- return;
-
- end_time = _play_time + _timer_rate;
+ end_time = psec;
pos = _play_pos;
// Send any necessary note off events.
@@ -159,7 +157,8 @@
for (i = ARRAYSIZE(_notes_cache); i; --i, ++ptr) {
if (ptr->time_left) {
if (ptr->time_left <= _timer_rate) {
- _driver->send (0x80 | ptr->channel | (ptr->note << 8));
+ if (transmit)
+ _driver->send (0x80 | ptr->channel | (ptr->note << 8));
ptr->time_left = 0;
} else {
ptr->time_left -= _timer_rate;
@@ -191,7 +190,8 @@
ptr->time_left = note_length;
ptr->channel = event & 0x0F;
ptr->note = note;
- _driver->send (event | (note << 8) | (vel << 16));
+ if (transmit)
+ _driver->send (event | (note << 8) | (vel << 16));
break;
}
}
@@ -199,7 +199,8 @@
case 0xC: // Program Change
case 0xD: // Channel Aftertouch
- _driver->send (event | (pos[0] << 8));
+ if (transmit)
+ _driver->send (event | (pos[0] << 8));
++pos;
break;
@@ -207,19 +208,22 @@
case 0xA: // Key Aftertouch
case 0xB: // Control Change
case 0xE: // Pitch Bender Change
- _driver->send (event | (pos[0] << 8) | (pos[1] << 16));
+ if (transmit)
+ _driver->send (event | (pos[0] << 8) | (pos[1] << 16));
pos += 2;
break;
case 0xF: // Meta or SysEx event
switch (event & 0x0F) {
case 0x2: // Song Position Pointer
- _driver->send (event | (pos[0] << 8) | (pos[1] << 16));
+ if (transmit)
+ _driver->send (event | (pos[0] << 8) | (pos[1] << 16));
pos += 2;
break;
case 0x3: // Song Select
- _driver->send (event | (pos[0] << 8));
+ if (transmit)
+ _driver->send (event | (pos[0] << 8));
++pos;
break;
@@ -229,37 +233,42 @@
case 0xB: // Sequencer Continue
case 0xC: // Sequencer Stop
case 0xE: // Active Sensing
- _driver->send (event);
+ if (transmit)
+ _driver->send (event);
+ break;
case 0x0: // SysEx
length = readVLQ (pos);
- _driver->sysEx (pos, (uint16)(length - 1));
+ if (transmit)
+ _driver->sysEx (pos, (uint16)(length - 1));
pos += length;
break;
case 0xF: // META event
event = *pos++;
length = readVLQ (pos);
- _driver->metaEvent (event, pos, (uint16) length);
- // End of song must be processed by us,
- // as well as sending it to the output device.
if (event == 0x2F) {
- // End of song. See if there are still holding notes
- // we need to wait for.
+ // End of song must be processed by us,
+ // as well as sending it to the output device.
ptr = &_notes_cache[0];
for (i = ARRAYSIZE(_notes_cache); i; --i, ++ptr) {
if (ptr->time_left) {
- _driver->send (0x80 | ptr->channel | (ptr->note << 8));
+ if (transmit)
+ _driver->send (0x80 | ptr->channel | (ptr->note << 8));
ptr->time_left = 0;
}
}
_play_pos = 0;
- _lock = 0;
+ if (transmit)
+ _driver->metaEvent (event, pos, (uint16) length);
return;
}
+ if (transmit)
+ _driver->metaEvent (event, pos, (uint16) length);
pos += length;
+ break;
}
}
@@ -268,12 +277,9 @@
_play_time = end_time;
_play_pos = pos;
- _lock = 0;
}
-// This code was adapted from the exult methods
-// XMIDI::ExtractTracks and XMIDI::ExtractTracksFromXmi
-bool MidiParser_XMIDI::loadMusic (byte *data) {
+bool MidiParser_XMIDI::loadMusic (byte *data, uint32 size) {
uint32 i = 0;
byte *start;
uint32 len;
@@ -419,9 +425,6 @@
int i;
NoteTimer *ptr;
- while (_lock);
- ++_lock;
-
_play_pos = NULL;
_data = NULL;
_num_tracks = 0;
@@ -437,8 +440,6 @@
ptr->time_left = 0;
}
}
-
- _lock = 0;
}
void MidiParser_XMIDI::setTrack (byte track) {
@@ -451,7 +452,15 @@
}
void MidiParser_XMIDI::jumpToTick (uint32 tick) {
- // TODO: Implement this.
+ if (_active_track >= _num_tracks)
+ return;
+ _play_pos = _tracks[_active_track];
+ _play_time = 0;
+ _last_event_time = 0;
+ if (tick > 0) {
+ printf ("jumpToTick (%ld) not completely implemented!\n", tick);
+ playToTime (tick * MICROSECONDS_PER_TICK - 1, false);
+ }
}
MidiParser *MidiParser::createParser_XMIDI() { return new MidiParser_XMIDI; }
Index: module.mk
===================================================================
RCS file: /cvsroot/scummvm/scummvm/sound/module.mk,v
retrieving revision 1.5
retrieving revision 1.6
diff -u -d -r1.5 -r1.6
--- module.mk 18 May 2003 14:43:50 -0000 1.5
+++ module.mk 18 May 2003 23:55:53 -0000 1.6
@@ -2,6 +2,8 @@
MODULE_OBJS = \
sound/fmopl.o \
+ sound/midiparser_smf.o \
+ sound/midiparser_xmidi.o \
sound/midistreamer.o \
sound/midiparser_xmidi.o \
sound/mixer.o \
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