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Add midi.winmidi.mergebox setting.

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This commit is contained in:
jjceresa 2022-01-17 05:26:04 +01:00
parent 9b94dd2e04
commit ae186c0997
1 changed files with 32 additions and 13 deletions
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43
src/drivers/fluid_winmidi.c
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@ -31,8 +31,9 @@
* 1)Multiple/single devices handling capabilities:
* This driver is able to handle multiple MIDI input devices chosen by the
* user trough the settings midi.winmidi.device.
* The driver makes an aggregation of the devices on separate MIDI channels
* to ensure no MIDI channels conflicts.
*
* If midi.winmidi.mergebox is set to 0 the driver makes an aggregation of the
* devices on separate MIDI channels to ensure no MIDI channels conflicts.
* For example, let the following device names:
* 0:Port MIDI SB Live! [CE00], 1:SB PCI External MIDI, default, x[;y;z;..]
* Then the driver is able receive MIDI messages comming from distinct devices
@ -53,15 +54,25 @@
* MIDI channel set associated with this real device at the driver output
* according this formula: output_channel = input_channel + device_order * 16.
*
* Note the driver ignores the setting synth.midi-channels which default value
* for this setting is 16, in which case the second MIDI device will not be hear
* on the fluid synth instance.
* a) You have to rise the setting synth.midi-channels to accept the number
* of MIDI channels provided by the MIDI driver.
* Note that the driver ignores the synth.midi-channels setting which default
* value for this setting is 16,in which case the second MIDI device will not
* be hear on the fluid synth instance.
* a) You can augment the synth.midi-channels setting value to accept the number
* of MIDI channels provided by the MIDI driver, or
* b) You can also keep the default value of 16 for synth.midi-channels
* and have your application connected between the MIDI driver and the fluid synth.
* and have your application connected between the MIDI driver and the synths.
* This way your application is able to map any MIDI channel from the driver to
* any synths that could be a fluid synth and hardware synth(s).
* any synths that could be a fluid synth and hardware synth(s) as well.
*
* If midi.winmidi.mergebox is set to 1 (default value). The driver map the device
* according the limit of the synth.midi-channels setting.
* For example, if the user chooses 2 devices at index 0 and 1 and a default value
* of 16 for synth.midi-channels setting:
* - MIDI messages from real device 0 are output to MIDI channels set 0 to 15.
* - MIDI messages from real device 1 are output to MIDI channels set 0 to 15.
* Device 1 MIDI channels are merged with device 0 MIDI channel. This could lead
* to possible MIDI channels conflicts if both MIDI devices transmit at the same
* on the same MIDI channels.
*
* 2)Note also that the driver handles single device by putting the device name
* in midi.winmidi.device setting.
@ -80,7 +91,7 @@
* channels conflicts are possible if MIDI devices transmit on the same MIDI channel.
* If the device name other than "default" is specified, then midi.autoconnect
* and synth.midi-channels settings are ignored (see 1).
* and synth.midi-channels settings are ignored (see 1, 2).
*
*/
@ -291,6 +302,8 @@ void fluid_winmidi_midi_driver_settings(fluid_settings_t *settings)
/* register midi.winmidi.device */
fluid_settings_register_str(settings, "midi.winmidi.device", "default", 0);
/* register midi.winmidi.mergebox (default value 1) */
fluid_settings_register_int(settings, "midi.winmidi.mergebox", 1, 0, 1, FLUID_HINT_TOGGLED);
num = midiInGetNumDevs();
if(num > 0)
@ -495,6 +508,7 @@ new_fluid_winmidi_driver(fluid_settings_t *settings,
int i, j;
int max_devices; /* maximum number of devices to handle */
int autoconnect = 0;
int mergebox = 1;
int synth_midi_channels = 16;
char strError[MAXERRORLENGTH];
char dev_name[MAXPNAMELEN];
@ -514,6 +528,7 @@ new_fluid_winmidi_driver(fluid_settings_t *settings,
}
fluid_settings_getint(settings, "midi.autoconnect", &autoconnect);
fluid_settings_getint(settings, "midi.winmidi.mergebox", &mergebox);
fluid_settings_getint(settings, "synth.midi-channels", &synth_midi_channels);
if ((autoconnect) && (FLUID_STRCASECMP(dev_name, "default") == 0))
{
@ -564,11 +579,15 @@ new_fluid_winmidi_driver(fluid_settings_t *settings,
dev_infos->dev = dev; /* driver structure */
dev_infos->midi_num = i; /* device order number */
dev_infos->channel_map = i * 16; /* map from input to output */
if(autoconnect || mergebox)
{
/* set channel mapping for autoconnect or mergebox behaviour */
dev_infos->channel_map %= synth_midi_channels;
if(autoconnect)
{
/* set device index and channel mapping for autoconnect */
/* set device index for autoconnect */
dev_infos->dev_idx = i;
dev_infos->channel_map %= synth_midi_channels;
}
}
FLUID_LOG(FLUID_DBG, "opening device at index %d", dev_infos->dev_idx);