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midi.C
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/*
This file is part of prodatum.
Copyright 2011-2015 Jan Eidtmann
prodatum is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
prodatum is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with prodatum. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <time.h>
#include <FL/fl_ask.H>
#include "ringbuffer.H"
#include "ui.H"
extern PD_UI* ui;
extern Cfg* cfg;
extern PXK* pxk;
volatile bool got_answer;
extern volatile bool join_bro;
static bool timer_running = false;
static bool midi_active = false;
static bool thru_active = false;
static bool process_midi_exit_flag = false;
static bool automap = true;
// check buffer spaces
#ifdef SYNCLOG
unsigned int write_space = RINGBUFFER_WRITE;
unsigned int read_space = RINGBUFFER_READ;
unsigned int max_write = 0;
unsigned int max_read = 0;
#endif
/**
* midi core implementation (sender/receiver/decoder).
* this is where all MIDI bytes (outgoing and incoming) pass through.
* this thread should never lock
* in the linux version a pipe is used to notify \c process_midi_in
* for new messages.
*/
static void process_midi(PtTimestamp, void*);
/*! \fn process_midi_in
* connects the MIDI receiver with the main thread.
* all incoming MIDI messages are passed to this function via the
* read buffer. runs in the main thread.
* in the linux version this gets notified by \c process_midi if a new message
* is available. on windows and mac this is a timeout function, repeated
* until we close our MIDI ports
*/
#ifdef __linux
static void process_midi_in(int fd, void*);
static int p[2];
#else
static void process_midi_in(void*);
#endif
static PmError pmerror = pmNoError;
static PortMidiStream *port_in;
static PortMidiStream *port_out;
static PortMidiStream *port_thru; // controller port (eg keyboard)
static jack_ringbuffer_t *read_buffer;
static jack_ringbuffer_t *write_buffer;
volatile static unsigned char midi_device_id = 127;
static bool requested = false;
static void show_error(void)
{
char* __buffer = (char*) malloc(256 * sizeof(char));
if (pmerror == -10000)
Pm_GetHostErrorText(__buffer, 256);
else if (pmerror < 0)
snprintf(__buffer, 256, "%s", Pm_GetErrorText(pmerror));
pmerror = pmNoError;
fprintf(stderr, "%s", __buffer);
#ifdef WIN32
fflush(stderr);
#endif
free(__buffer);
}
//static bool __midi_wait = false;
static void process_midi(PtTimestamp, void*)
{
PmEvent ev;
static unsigned char event[4]; // 3 midi bytes, one byte to distinguish device (0) and controller (1) events
static unsigned char data, shift;
// we only want to put full sysex messages in our ringbuffer
// these are the buffers to store sysex chunks locally
static unsigned char local_read_buffer[SYSEX_MAX_SIZE];
static unsigned char local_write_buffer[SYSEX_MAX_SIZE];
static unsigned int position = 3;
static bool receiving_sysex = false;
static bool result_out = false;
static unsigned char poll = 0;
if (!midi_active)
{
if (!jack_ringbuffer_read_space(write_buffer))
{
process_midi_exit_flag = true;
// __midi_wait = false;
receiving_sysex = false;
position = 3;
result_out = false;
poll = 0;
return;
}
}
do
{
// check if theres something from the device and write it to the read_buffer
while (midi_active && Pm_Poll(port_in))
{
pmerror = (PmError) Pm_Read(port_in, &ev, 1);
if (pmerror < 0)
{
show_error();
receiving_sysex = false;
break;
}
// got 4 bytes
for (shift = 0; shift <= 24; shift += 8)
{
// byte for byte inspection
data = (ev.message >> shift) & 0xFF;
if (data == MIDI_SYSEX)
{
if (receiving_sysex) // Overlapping sysex messages!
receiving_sysex = false;
// filter sysex
// e-mu proteus
if (((ev.message >> 8) & 0xFF) == 0x18 && ((ev.message >> 16) & 0xFF) == 0x0F
&& ((ev.message >> 24) & 0xFF) == midi_device_id)
receiving_sysex = true;
// universal sysex
else if (((ev.message >> 8) & 0xFF) == 0x7E)
receiving_sysex = true;
if (receiving_sysex)
{
position = 3;
goto Copy;
}
else
break;
}
// check for truncated sysex
if (receiving_sysex && (((data & 0x80) == 0 || data == 0xF7) || position == 3))
{
// copy data
if (position < SYSEX_MAX_SIZE)
{
Copy: local_read_buffer[position++] = data;
// hand over a complete sysex message to the main thread
if (data == MIDI_EOX)
{
// TODO: check if its a WAIT command
if (local_read_buffer[7] == 0x55 && local_read_buffer[8] == 0x7c)
{
pmesg("Received WAIT command\n");
// __midi_wait = true;
receiving_sysex = false;
break;
}
// TODO: check if it's an ack command
// else if (__midi_wait == true && local_read_buffer[7] == 0x55 && local_read_buffer[8] == 0x7f)
// __midi_wait = false;
#ifdef SYNCLOG
if (read_space > (jack_ringbuffer_write_space(read_buffer) - position))
read_space = jack_ringbuffer_write_space(read_buffer) - position;
if (max_read < position + 3)
max_read = position + 3;
#endif
// write a header with length info
local_read_buffer[0] = MIDI_SYSEX;
local_read_buffer[1] = (position - 3) / 128;
local_read_buffer[2] = (position - 3) % 128;
jack_ringbuffer_write(read_buffer, local_read_buffer, position);
#ifdef __linux
write(p[1], " ", 1);
#endif
receiving_sysex = false;
break;
}
} // (position < SYSEX_MAX_SIZE)
else
{
receiving_sysex = false;
break;
}
}
// voice message
else if (shift == 0 && data > 0x7F && data < 0xF0)
{
event[0] = Pm_MessageStatus(ev.message);
event[1] = Pm_MessageData1(ev.message);
event[2] = Pm_MessageData2(ev.message);
event[3] = 0;
jack_ringbuffer_write(read_buffer, event, 4);
#ifdef __linux
write(p[1], " ", 1);
#endif
break;
}
else
break;
}
}
// check if theres something from the controller
if (thru_active && Pm_Poll(port_thru))
{
pmerror = (PmError) Pm_Read(port_thru, &ev, 1);
if (!(pmerror < 0)) // no error
{
event[0] = Pm_MessageStatus(ev.message);
// voice messages
if (event[0] >= 0x80 && event[0] <= 0xEF)
{
// automap
if (automap && pxk->midi_mode != OMNI)
event[0] = (event[0] & ~0xf) | (pxk->selected_channel & 0xff);
event[1] = Pm_MessageData1(ev.message);
event[2] = Pm_MessageData2(ev.message);
event[3] = 1;
// write to ringbuffer for internal processing
jack_ringbuffer_write(read_buffer, event, 4);
#ifdef __linux
write(p[1], " ", 1);
#endif
ev.message = Pm_Message(event[0], event[1], event[2]);
}
// forward message
pmerror = (PmError) Pm_Write(port_out, &ev, 1);
if (pmerror < 0)
show_error();
}
else
// pmerror = (PmError) Pm_Read(port_thru, &ev, 1);
show_error();
}
// check if theres some MIDI to write on the bus
result_out = false;
if (jack_ringbuffer_peek(write_buffer, &poll, 1) == 1)
{
result_out = true;
if (poll == MIDI_SYSEX)
{
// TODO: WAIT
// if (!__midi_wait)
// {
jack_ringbuffer_read(write_buffer, local_write_buffer, 3); // read header
unsigned int len = local_write_buffer[1] * 128 + local_write_buffer[2];
jack_ringbuffer_read(write_buffer, local_write_buffer, len);
pmerror = Pm_WriteSysEx(port_out, 0, local_write_buffer);
if (pmerror < 0)
show_error();
// }
}
else if (jack_ringbuffer_read(write_buffer, event, 3) == 3)
{
ev.message = Pm_Message(event[0], event[1], event[2]);
pmerror = Pm_Write(port_out, &ev, 1);
if (pmerror < 0)
show_error();
}
}
} while (result_out);
}
#ifdef __linux
static void process_midi_in(int fd, void*)
#else
static void process_midi_in(void*)
#endif
{
static unsigned long count_events = 0;
static unsigned char sysex[SYSEX_MAX_SIZE];
static unsigned int len;
unsigned char poll = 0;
#ifdef __linux
static char buf;
#endif
while (midi_active && jack_ringbuffer_peek(read_buffer, &poll, 1) == 1)
{
#ifdef __linux
read(fd, &buf, 1);
#endif
if (poll == MIDI_SYSEX)
{
jack_ringbuffer_read(read_buffer, sysex, 3); // read header
len = sysex[1] * 128 + sysex[2];
jack_ringbuffer_read(read_buffer, sysex, len);
if (join_bro)
break;
// e-mu sysex
if (sysex[1] == 0x18)
{
switch (sysex[5])
{
case 0x0b: // generic name
if (!pxk->Synchronized())
{
got_answer = true;
pxk->incoming_generic_name(sysex);
}
break;
case 0x10: // preset dumps
if (requested)
switch (sysex[6])
{
case 0x01: // dump header (closed)
case 0x03: // dump header (open)
pxk->incoming_preset_dump(sysex, len);
break;
case 0x02: // dump data (closed)
pxk->incoming_preset_dump(sysex, len);
break;
case 0x04: // dump data (open)
pxk->incoming_preset_dump(sysex, len);
if (len < 253) // last packet
{
got_answer = true;
requested = false;
}
break;
}
break;
case 0x7f: // ACK
pxk->incoming_ACK(sysex[7] * 128 + sysex[6]);
break;
case 0x7e: // NAK
pxk->incoming_NAK(sysex[7] * 128 + sysex[6]);
break;
case 0x7b: // EOF
got_answer = true;
requested = false;
break;
case 0x1c: // setup dumps
if (requested)
{
got_answer = true;
requested = false;
pxk->incoming_setup_dump(sysex, len);
}
break;
case 0x18: // arp pattern dump
if (requested)
{
got_answer = true;
requested = false;
pxk->incoming_arp_dump(sysex, len);
}
break;
case 0x09: // hardware configuration
if (!pxk->Synchronized() && requested)
{
requested = false;
pxk->incoming_hardware_config(sysex);
}
break;
case 0x7d: // CANCEL
got_answer = true;
requested = false;
pxk->display_status("Device sent CANCEL.");
ui->supergroup->clear_output();
break;
case 0x70: // ERROR
case 0x40: // remote front panel control command
break;
default:
#ifdef SYNCLOG
ui->init_log->append("\nprocess_midi_in: Received unrecognized e-mu sysex:\n");
char* __buffer = (char*) malloc(len * sizeof(char));
for (unsigned int i = 0; i < len; i++)
sprintf(__buffer + 2 * i, "%02hhX", sysex[i]);
ui->init_log->append(__buffer);
ui->init_log->append("\n");
free(__buffer);
#endif
break;
}
pxk->log_add(sysex, len, 1);
}
// universal sysex
else if (sysex[1] == 0x7e)
{
//pmesg("process_midi_in: received MIDI standard universal message: ");
// device inquiry
if (sysex[3] == 0x06 && sysex[4] == 0x02 && sysex[5] == 0x18)
{
//pmesg("device inquiry response\n");
if (!pxk->Synchronized())
pxk->incoming_inquiry_data(sysex);
}
pxk->log_add(sysex, len, 1);
}
#ifdef SYNCLOG
else
{
ui->init_log->append("\nprocess_midi_in: Received unknown sysex:\n");
char* __buffer = (char*) malloc(len * sizeof(char));
for (unsigned int i = 0; i < len; i++)
snprintf(__buffer + i, 1, "%02hhX", *(sysex + i));
ui->init_log->append(__buffer);
ui->init_log->append("\n");
free(__buffer);
}
#endif
} // if (poll == MIDI_SYSEX)
else
{
unsigned char event[4];
jack_ringbuffer_read(read_buffer, event, 4);
if (event[3] == 0) // device event
{
switch (event[0] >> 4)
{
case 0x8: // note off
ui->piano->activate_key(-1, event[1]);
ui->main->minipiano->activate_key(-1, event[1]);
ui->global_minipiano->activate_key(-1, event[1]);
ui->arp_mp->activate_key(-1, event[1]);
break;
case 0x9: // note-on
if (event[2] == 0)
{
ui->piano->activate_key(-1, event[1]);
ui->main->minipiano->activate_key(-1, event[1]);
ui->global_minipiano->activate_key(-1, event[1]);
ui->arp_mp->activate_key(-1, event[1]);
}
else
{
ui->piano->activate_key(1, event[1]);
ui->main->minipiano->activate_key(1, event[1]);
ui->global_minipiano->activate_key(1, event[1]);
ui->arp_mp->activate_key(1, event[1]);
}
break;
case 0xb: // controller event
{
if (pxk->cc_to_ctrl.find(event[1]) != pxk->cc_to_ctrl.end())
{
int controller = pxk->cc_to_ctrl[event[1]];
if (controller <= 12)
// sliders
((Fl_Slider*) ui->main->ctrl_x[controller])->value((double) event[2]);
else
// footswitches
((Fl_Button*) ui->main->ctrl_x[controller])->value(event[2] > 63 ? 1 : 0);
}
else if (event[1] == 1) // modwhl
ui->modwheel->value((double) event[2]);
else if (event[1] == 7) // channel volume
pwid[131][0]->set_value(event[2]);
else if (event[1] == 10) // channel pan
pwid[132][0]->set_value(event[2]);
}
break;
case 0xe: // pitchwheel
{
int v = event[2];
v <<= 7;
v |= event[1];
ui->pitchwheel->value((double) v);
}
}
}
else // controller event
{
switch (event[0] >> 4)
{
case 0x8: // note off
ui->piano->activate_key(-3, event[1]);
ui->main->minipiano->activate_key(-3, event[1]);
ui->global_minipiano->activate_key(-3, event[1]);
ui->arp_mp->activate_key(-3, event[1]);
break;
case 0x9: // note-on
if (event[2] == 0)
{
ui->piano->activate_key(-2, event[1]);
ui->main->minipiano->activate_key(-2, event[1]);
ui->global_minipiano->activate_key(-2, event[1]);
ui->arp_mp->activate_key(-2, event[1]);
}
else
{
ui->piano->activate_key(2, event[1]);
ui->main->minipiano->activate_key(2, event[1]);
ui->global_minipiano->activate_key(2, event[1]);
ui->arp_mp->activate_key(2, event[1]);
}
break;
case 0xb: // controller event
{
if (pxk->cc_to_ctrl.find(event[1]) != pxk->cc_to_ctrl.end())
{
int controller = pxk->cc_to_ctrl[event[1]];
if (controller <= 12)
// sliders
((Fl_Slider*) ui->main->ctrl_x[controller])->value((double) event[2]);
else
// footswitches
((Fl_Button*) ui->main->ctrl_x[controller])->value(event[2] > 63 ? 1 : 0);
}
else if (event[1] == 1) // modwhl
ui->modwheel->value((double) event[2]);
else if (event[1] == 7) // channel volume
pwid[131][0]->set_value(event[2]);
else if (event[1] == 10) // channel pan
pwid[132][0]->set_value(event[2]);
}
break;
case 0xe: // pitchwheel
{
int v = event[2];
v <<= 7;
v |= event[1];
ui->pitchwheel->value((double) v);
}
}
}
// log midi events
if (cfg->get_cfg_option(CFG_LOG_EVENTS_IN))
{
char _b[30];
snprintf(_b, 30, "\nIE.%lu::%02X%02X%02X", ++count_events, event[0], event[1], event[2]);
ui->logbuf->append(_b);
}
}
}
#ifndef __linux
if (timer_running)
Fl::repeat_timeout(.01, process_midi_in);
#endif
}
// ########################################
// midi connection class member definitions
// ########################################
MIDI::MIDI()
{
pmesg("MIDI::MIDI()\n");
// initialize (global) variables and buffers
selected_port_out = -1;
port_out = 0;
selected_port_in = -1;
port_in = 0;
selected_port_thru = -1;
port_thru = 0;
#ifdef __linux
if (pipe(p) == -1)
fprintf(stderr, "*** Could not open pipe\n%s", strerror(errno));
#endif
read_buffer = jack_ringbuffer_create(RINGBUFFER_READ);
write_buffer = jack_ringbuffer_create(RINGBUFFER_WRITE);
#ifdef USE_MLOCK
jack_ringbuffer_mlock(write_buffer);
jack_ringbuffer_mlock(read_buffer);
#endif
// populate ports
pxk->display_status("Populating MIDI ports...");
Fl::flush();
for (unsigned char i = 0; i < Pm_CountDevices(); i++)
{
const PmDeviceInfo *info = Pm_GetDeviceInfo(i);
if (info->output)
{
ui->midi_outs->add("foo");
ui->midi_outs->replace(ui->midi_outs->size() - 2, info->name);
ports_out.push_back(i);
}
else
{
ui->midi_ins->add("foo");
ui->midi_ins->replace(ui->midi_ins->size() - 2, info->name);
ui->midi_ctrl->add("foo");
ui->midi_ctrl->replace(ui->midi_ctrl->size() - 2, info->name);
ports_in.push_back(i);
}
}
pxk->display_status(0);
Fl::flush();
}
MIDI::~MIDI()
{
pmesg("MIDI::~MIDI()\n");
stop_timer();
jack_ringbuffer_free(read_buffer);
jack_ringbuffer_free(write_buffer);
}
bool MIDI::in()
{
if (selected_port_in != -1)
return true;
return false;
}
bool MIDI::out()
{
if (selected_port_out != -1)
return true;
return false;
}
// TODO: WAIT
//bool MIDI::Wait()
//{
// return __midi_wait;
//}
//
//void MIDI::Wait(bool wait)
//{
// __midi_wait = wait;
//}
void MIDI::set_device_id(unsigned char id)
{
pmesg("MIDI::set_device_id(%d)\n", id);
midi_device_id = id;
// sysex packet delay
edit_parameter_value(405, cfg->get_cfg_option(CFG_SPEED));
}
// start realtime receiver
int MIDI::start_timer()
{
if (timer_running)
return 1;
pmesg("MIDI::start_timer()\n");
// initialize timout or filedescriptors for IPC
#ifdef __linux
Fl::add_fd(p[0], process_midi_in);
#else
Fl::add_timeout(0, process_midi_in);
#endif
// start timer, clean up if we couldnt
if (Pt_Start(1, &process_midi, 0) < 0)
{
#ifdef __linux
Fl::remove_fd(p[0]);
close(p[0]);
close(p[1]);
#else
Fl::remove_timeout(process_midi_in);
#endif
pxk->display_status("*** Could not start MIDI timer.");
fprintf(stderr, "*** Could not start MIDI timer.\n");
#ifdef WIN32
fflush(stderr);
#endif
Pt_Stop();
return 0;
}
timer_running = true;
Pm_Initialize(); // start portmidi
return 1;
}
// stop realtime receiver
void MIDI::stop_timer()
{
if (!timer_running)
return;
pmesg("MIDI::stop_timer()\n");
process_midi_exit_flag = false;
thru_active = false;
timer_running = false;
midi_active = false;
while (!process_midi_exit_flag)
mysleep(10);
#ifdef __linux
Fl::remove_fd(p[0]);
close(p[0]);
close(p[1]);
#else
Fl::remove_timeout(process_midi_in);
#endif
Pm_Terminate();
Pt_Stop();
if (selected_port_in != -1)
Pm_Close(port_in);
if (selected_port_out != -1)
Pm_Close(port_out);
if (selected_port_thru != -1)
Pm_Close(port_thru);
}
int MIDI::connect_out(int port)
{
pmesg("MIDI::connect_out(port: %d)\n", port);
if (port < 0 || port >= (int) ports_out.size())
return 0;
if (selected_port_out == port)
return 1;
if (midi_active)
{
process_midi_exit_flag = false;
thru_active = false;
midi_active = false;
while (!process_midi_exit_flag)
mysleep(10);
}
if (!start_timer())
return 0;
if (selected_port_out != -1)
{
pmerror = Pm_Close(port_out);
if (pmerror < 0)
{
show_error();
return 0;
}
}
// device ID validation
try
{
ports_out.at(port);
} catch (...)
{
fprintf(stderr, "*** Selected MIDI port (%d, out) does not exist.\n", port);
#ifdef WIN32
fflush(stderr);
#endif
return 0;
}
pmerror = Pm_OpenOutput(&port_out, ports_out.at(port), NULL, 0, NULL, NULL, 0); // open the port
if (pmerror < 0)
{
show_error();
return 0;
}
selected_port_out = port;
if (selected_port_in != -1)
midi_active = true;
if (selected_port_thru != -1)
thru_active = true;
return 1;
}
int MIDI::connect_in(int port)
{
pmesg("MIDI::connect_in(port: %d)\n", port);
if (port < 0 || port >= (int) ports_in.size())
return 0;
if (selected_port_in == port)
return 1;
if (port == selected_port_thru)
{
fl_message("In-port must be different from Ctrl-port.");
return 0;
}
if (midi_active)
{
process_midi_exit_flag = false;
midi_active = false;
while (!process_midi_exit_flag)
mysleep(10);
}
if (!start_timer())
return 0;
if (selected_port_in != -1)
{
pmerror = Pm_Close(port_in);
if (pmerror < 0)
{
show_error();
return 0;
}
}
// device ID validation
try
{
ports_in.at(port);
} catch (...)
{
fprintf(stderr, "*** Selected MIDI port (%d, in) does not exist.\n", port);
#ifdef WIN32
fflush(stderr);
#endif
return 0;
}
pmerror = Pm_OpenInput(&port_in, ports_in.at(port), NULL, 512, NULL, NULL);
if (pmerror < 0)
{
show_error();
return 0;
}
// only allow sysex for now
pmerror = Pm_SetFilter(port_in, ~1);
if (pmerror < 0)
{
show_error();
return 0;
}
selected_port_in = port;
if (selected_port_out != -1)
midi_active = true;
return 1;
}
// connect midi thru
int MIDI::connect_thru(int port)
{
pmesg("MIDI::connect_thru(port: %d)\n", port);
if (port < 0 || port >= (int) ports_in.size())
return 0;
if (port == selected_port_in)
{
fl_message("Ctrl-port must be different from In-port");
return 0;
}
if (thru_active)
thru_active = false;
if (!start_timer())
return 0;
if (selected_port_thru != -1)
{
pmerror = Pm_Close(port_thru);
if (pmerror < 0)
{
show_error();
return 0;
}
}
if (selected_port_thru == port)
{
selected_port_thru = -1;
return 0;
}
// device ID validation
try
{
ports_in.at(port);
} catch (...)
{
fprintf(stderr, "*** Selected MIDI port (%d, thru) does not exist.\n", port);
#ifdef WIN32
fflush(stderr);
#endif
return 0;
}
pmerror = Pm_OpenInput(&port_thru, ports_in.at(port), NULL, 512, NULL, NULL);
if (pmerror < 0)
{
show_error();
return 0;
}
// filter messages we dont process
pmerror = Pm_SetFilter(port_thru, PM_FILT_REALTIME | PM_FILT_SYSTEMCOMMON);
if (pmerror < 0)
{
show_error();
return 0;
}
selected_port_thru = port;
if (selected_port_out != -1)
{
cfg->get_cfg_option(CFG_AUTOMAP) ? automap = true : automap = false;
thru_active = true;
}
set_control_channel_filter(cfg->get_cfg_option(CFG_CONTROL_CHANNEL));
return 1;
}
void MIDI::set_control_channel_filter(int channel) const
{
pmesg("MIDI::set_control_channel_filter(%d)\n", channel);
cfg->set_cfg_option(CFG_CONTROL_CHANNEL, channel);
if (channel == 16) // 0-15, single channels
pmerror = Pm_SetChannelMask(port_thru, ~0); // all channels
else
pmerror = Pm_SetChannelMask(port_thru, Pm_Channel(channel));
if (pmerror < 0)
show_error();
}
void MIDI::set_channel_filter(int channel) const
{
pmesg("MIDI::set_channel_filter(%d)\n", channel);
if (port_in)
{
pmerror = Pm_SetChannelMask(port_in, Pm_Channel(channel));
if (pmerror < 0)
show_error();
}
}
void MIDI::filter_loose() const
{
pmesg("MIDI::filter_loose()\n");
int filter = ~0; // filter everything
filter ^= (PM_FILT_SYSEX + PM_FILT_NOTE + PM_FILT_CONTROL + PM_FILT_PITCHBEND);
if (port_in)
{
pmerror = Pm_SetFilter(port_in, filter);
if (pmerror < 0)
show_error();
}
if (port_thru)
{
pmerror = Pm_SetFilter(port_thru, PM_FILT_REALTIME | PM_FILT_SYSTEMCOMMON);
if (pmerror < 0)
show_error();
}
}
void MIDI::filter_strict() const
{
pmesg("MIDI::filter_strict()\n");
if (port_in)
{
pmerror = Pm_SetFilter(port_in, ~1); // only sysex on input
if (pmerror < 0)
show_error();
}
if (port_thru)
{
pmerror = Pm_SetFilter(port_thru, ~0); // everything on thru
if (pmerror < 0)
show_error();
}
}
void MIDI::write_sysex(const unsigned char* sysex, unsigned int len) const
{
//pmesg("MIDI::write_sysex(data, len: %d)\n", len);
static unsigned char data[SYSEX_MAX_SIZE];
if (!midi_active || len > SYSEX_MAX_SIZE)
return;
data[0] = MIDI_SYSEX;
data[1] = len / 128;
data[2] = len % 128;
memcpy(data + 3, sysex, len);
#ifdef SYNCLOG
if (write_space > jack_ringbuffer_write_space(write_buffer) - len - 3)
write_space = jack_ringbuffer_write_space(write_buffer) - len - 3;
if (max_write < len + 3)
max_write = len + 3;
#endif
// while (jack_ringbuffer_write_space(write_buffer) < len + 3)
// Fl::wait(.1);
jack_ringbuffer_write(write_buffer, data, len + 3);
pxk->log_add(sysex, len, 0);
}
void MIDI::write_event(int status, int value1, int value2, int channel) const
{
//pmesg("MIDI::write_event(%X, %X, %X, %d)\n", status, value1, value2, channel);
if (!midi_active)
return;
if (channel == -1)
channel = pxk->selected_channel;
unsigned char stat = ((status & ~0xf) | channel) & 0xff;
unsigned char v1 = value1 & 0xff;
unsigned char v2 = value2 & 0xff;
const unsigned char msg[] =
{ stat, v1, v2 };
// while (jack_ringbuffer_write_space(write_buffer) < 3)
// Fl::wait(.1);
jack_ringbuffer_write(write_buffer, msg, 3);
// log midi events
if (cfg->get_cfg_option(CFG_LOG_EVENTS_OUT))
{
static unsigned long count = 0;
char buf[30];
snprintf(buf, 30, "\nOE.%lu::%02x%02x%02x", ++count, stat, v1, v2);
ui->logbuf->append(buf);
}
}
void MIDI::ack(int packet) const
{