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Add a workaround for allowing GM2 bank selection with a GM2 On SysEx

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This commit is contained in:
Chris Robinson 2013-11-29 23:57:32 -08:00
parent be446366fb
commit e0babed29b
1 changed files with 34 additions and 1 deletions
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35
OpenAL32/alMidi.c
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@ -156,6 +156,8 @@ typedef struct FSynth {
fluid_settings_t *Settings;
fluid_synth_t *Synth;
int FontID;
ALboolean ForceGM2BankSelect;
} FSynth;
static void FSynth_Construct(FSynth *self, ALCdevice *device);
@ -178,6 +180,7 @@ static void FSynth_Construct(FSynth *self, ALCdevice *device)
self->Settings = NULL;
self->Synth = NULL;
self->FontID = FLUID_FAILED;
self->ForceGM2BankSelect = AL_FALSE;
}
static void FSynth_Destruct(FSynth *self)
@ -286,7 +289,20 @@ static void FSynth_processQueue(FSynth *self, ALuint64 time)
const MidiEvent *evt = &queue->events[queue->pos];
if(evt->event == SYSEX_EVENT)
fluid_synth_sysex(self->Synth, evt->param.sysex.data, evt->param.sysex.size, NULL, NULL, NULL, 0);
{
static const ALbyte gm2_on[] = { 0x7E, 0x7F, 0x09, 0x03 };
static const ALbyte gm2_off[] = { 0x7E, 0x7F, 0x09, 0x02 };
int handled = 0;
fluid_synth_sysex(self->Synth, evt->param.sysex.data, evt->param.sysex.size, NULL, NULL, &handled, 0);
if(!handled && evt->param.sysex.size >= (ALsizei)sizeof(gm2_on))
{
if(memcmp(evt->param.sysex.data, gm2_on, sizeof(gm2_on)) == 0)
self->ForceGM2BankSelect = AL_TRUE;
else if(memcmp(evt->param.sysex.data, gm2_off, sizeof(gm2_off)) == 0)
self->ForceGM2BankSelect = AL_FALSE;
}
}
else switch((evt->event&0xF0))
{
case AL_NOTEOFF_SOFT:
@ -299,6 +315,23 @@ static void FSynth_processQueue(FSynth *self, ALuint64 time)
break;
case AL_CONTROLLERCHANGE_SOFT:
if(self->ForceGM2BankSelect)
{
int chan = (evt->event&0x0F);
if(evt->param.val[0] == 0)
{
if(evt->param.val[1] == 120 && (chan == 9 || chan == 10))
fluid_synth_set_channel_type(self->Synth, chan, CHANNEL_TYPE_DRUM);
else if(evt->param.val[1] == 121)
fluid_synth_set_channel_type(self->Synth, chan, CHANNEL_TYPE_MELODIC);
break;
}
if(evt->param.val[0] == 32)
{
fluid_synth_bank_select(self->Synth, chan, evt->param.val[1]);
break;
}
}
fluid_synth_cc(self->Synth, (evt->event&0x0F), evt->param.val[0], evt->param.val[1]);
break;
case AL_PROGRAMCHANGE_SOFT: