OrdinaryMagician/vkdoom_m
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Add a WildMidi softsynth device

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- This removes the preceding psuedo MIDI device for WildMidi.
This commit is contained in:
Randy Heit 2015-12-28 22:07:51 -06:00
commit afc36544b7
8 changed files with 390 additions and 196 deletions
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150
src/wildmidi/wildmidi_lib.cpp
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@ -3643,6 +3643,18 @@ static int *WM_Mix_Gauss(midi * handle, int * buffer, unsigned long int count)
return buffer;
}
int *WM_Mix(midi *handle, int *buffer, unsigned long count)
{
if (((struct _mdi *)handle)->info.mixer_options & WM_MO_ENHANCED_RESAMPLING)
{
return WM_Mix_Gauss(handle, buffer, count);
}
else
{
return WM_Mix_Linear(handle, buffer, count);
}
}
static int WM_DoGetOutput(midi * handle, char * buffer,
unsigned long int size) {
unsigned long int buffer_used = 0;
@ -3702,14 +3714,7 @@ static int WM_DoGetOutput(midi * handle, char * buffer,
}
/* do mixing here */
if (mdi->info.mixer_options & WM_MO_ENHANCED_RESAMPLING)
{
tmp_buffer = WM_Mix_Gauss(handle, tmp_buffer, real_samples_to_mix);
}
else
{
tmp_buffer = WM_Mix_Linear(handle, tmp_buffer, real_samples_to_mix);
}
tmp_buffer = WM_Mix(handle, tmp_buffer, real_samples_to_mix);
buffer_used += real_samples_to_mix * 4;
size -= (real_samples_to_mix << 2);
@ -3807,6 +3812,11 @@ WM_SYMBOL int WildMidi_Init(const char * config_file, unsigned short int rate,
return 0;
}
WM_SYMBOL int WildMidi_GetSampleRate(void)
{
return _WM_SampleRate;
}
WM_SYMBOL int WildMidi_MasterVolume(unsigned char master_volume) {
struct _mdi *mdi = NULL;
struct _hndl * tmp_handle = first_handle;
@ -3947,6 +3957,23 @@ WildMidi_OpenBuffer(unsigned char *midibuffer, unsigned long int size) {
return ret;
}
midi *WildMidi_NewMidi() {
midi * ret = NULL;
if (!WM_Initialized) {
_WM_ERROR(__FUNCTION__, __LINE__, WM_ERR_NOT_INIT, NULL, 0);
return NULL;
}
ret = Init_MDI();
if (ret) {
if (add_handle(ret) != 0) {
WildMidi_Close(ret);
ret = NULL;
}
}
return ret;
}
WM_SYMBOL int WildMidi_FastSeek(midi * handle, unsigned long int *sample_pos) {
struct _mdi *mdi;
struct _event *event;
@ -4197,3 +4224,110 @@ WM_SYMBOL int WildMidi_Shutdown(void) {
return 0;
}
WildMidi_Renderer::WildMidi_Renderer()
{
handle = WildMidi_NewMidi();
}
WildMidi_Renderer::~WildMidi_Renderer()
{
WildMidi_Close((midi *)handle);
}
void WildMidi_Renderer::ShortEvent(int status, int parm1, int parm2)
{
_mdi *mdi = (_mdi *)handle;
_event_data ev;
ev.channel = status & 0x0F;
switch ((status & 0xF0) >> 4) // command
{
case 0x8:
ev.data = (parm1 << 8) | parm2;
do_note_off(mdi, &ev);
break;
case 0x9:
ev.data = (parm1 << 8) | parm2;
do_note_on(mdi, &ev);
break;
case 0xA:
ev.data = (parm1 << 8) | parm2;
do_aftertouch(mdi, &ev);
break;
case 0xC:
ev.data = parm1;
do_patch(mdi, &ev);
break;
case 0xD:
ev.data = parm1;
do_channel_pressure(mdi, &ev);
break;
case 0xE:
ev.data = parm1 | (parm2 << 7);
do_pitch(mdi, &ev);
break;
case 0xB: // Controllers
ev.data = parm2;
switch (parm1)
{
case 0: do_control_bank_select(mdi, &ev); break;
case 6: do_control_data_entry_course(mdi, &ev); break; // [sic]
case 7: do_control_channel_volume(mdi, &ev); break;
case 8: do_control_channel_balance(mdi, &ev); break;
case 10: do_control_channel_pan(mdi, &ev); break;
case 11: do_control_channel_expression(mdi, &ev); break;
case 38: do_control_data_entry_fine(mdi, &ev); break;
case 64: do_control_channel_hold(mdi, &ev); break;
case 96: do_control_data_increment(mdi, &ev); break;
case 97: do_control_data_decrement(mdi, &ev); break;
case 98:
case 99: do_control_non_registered_param(mdi, &ev); break;
case 100: do_control_registered_param_fine(mdi, &ev); break;
case 101: do_control_registered_param_course(mdi, &ev); break; // [sic]
case 120: do_control_channel_sound_off(mdi, &ev); break;
case 121: do_control_channel_controllers_off(mdi, &ev); break;
case 123: do_control_channel_notes_off(mdi, &ev); break;
}
}
}
void WildMidi_Renderer::LongEvent(const char *data, int len)
{
}
void WildMidi_Renderer::ComputeOutput(float *fbuffer, int len)
{
_mdi *mdi = (_mdi *)handle;
int *buffer = (int *)fbuffer;
int *newbuf = WM_Mix(handle, buffer, len);
// assert(newbuf - buffer == len);
if (mdi->info.mixer_options & WM_MO_REVERB) {
_WM_do_reverb(mdi->reverb, buffer, len * 2);
}
for (; buffer < newbuf; ++buffer)
{
*(float *)buffer = (float)*buffer / 32768.f;
}
}
void WildMidi_Renderer::LoadInstrument(int bank, int percussion, int instr)
{
load_patch((_mdi *)handle, (bank << 8) | instr | (percussion ? 0x80 : 0));
}
int WildMidi_Renderer::GetVoiceCount()
{
int count = 0;
for (_note *note_data = ((_mdi *)handle)->note; note_data != NULL; note_data = note_data->next)
{
count++;
}
return count;
}