821 lines
23 KiB
C
821 lines
23 KiB
C
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/*
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Copyright 2013 Eric Messick (FixedImagePhoto.com/Contact)
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Copyright 2018 Albert Graef <aggraef@gmail.com>, various improvements
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Based on a version (c) 2006 Trammell Hudson <hudson@osresearch.net>
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which was in turn
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Based heavily on code by Arendt David <admin@prnet.org>
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*/
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#include "midizap.h"
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#include "jackdriver.h"
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typedef struct input_event EV;
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Display *display;
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JACK_SEQ seq;
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int jack_num_outputs = 0, debug_jack = 0;
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int shift = 0;
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void
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initdisplay(void)
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{
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int event, error, major, minor;
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display = XOpenDisplay(0);
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if (!display) {
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fprintf(stderr, "unable to open X display\n");
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exit(1);
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}
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if (!XTestQueryExtension(display, &event, &error, &major, &minor)) {
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fprintf(stderr, "Xtest extensions not supported\n");
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XCloseDisplay(display);
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exit(1);
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}
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}
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void
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send_button(unsigned int button, int press)
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{
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XTestFakeButtonEvent(display, button, press ? True : False, DELAY);
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}
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void
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send_key(KeySym key, int press)
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{
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KeyCode keycode;
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if (key >= XK_Button_1 && key <= XK_Scroll_Down) {
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send_button((unsigned int)key - XK_Button_0, press);
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return;
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}
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keycode = XKeysymToKeycode(display, key);
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XTestFakeKeyEvent(display, keycode, press ? True : False, DELAY);
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}
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// cached controller and pitch bend values
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static int16_t ccvalue[16][128];
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static int16_t pbvalue[16] =
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{8192, 8192, 8192, 8192, 8192, 8192, 8192, 8192,
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8192, 8192, 8192, 8192, 8192, 8192, 8192, 8192};
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void
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send_midi(uint8_t portno, int status, int data, int step, int incr, int index, int dir)
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{
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if (!jack_num_outputs) return; // MIDI output not enabled
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uint8_t msg[3];
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int chan = status & 0x0f;
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msg[0] = status;
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msg[1] = data;
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switch (status & 0xf0) {
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case 0x90:
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if (!index) {
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msg[2] = step?step:127;
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if (msg[2] > 127) msg[2] = 127;
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} else {
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msg[2] = 0;
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}
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break;
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case 0xb0:
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if (dir) {
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if (incr) {
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// incremental controller, simply spit out a relative sign bit value
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msg[2] = dir>0?1:65;
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} else {
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// increment (dir==1) or decrement (dir==-1) the current value,
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// clamping it to the 0..127 data byte range
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if (!step) step = 1;
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dir *= step;
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if (dir > 0) {
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if (ccvalue[chan][data] >= 127) return;
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ccvalue[chan][data] += dir;
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if (ccvalue[chan][data] > 127) ccvalue[chan][data] = 127;
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} else {
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if (ccvalue[chan][data] == 0) return;
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ccvalue[chan][data] += dir;
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if (ccvalue[chan][data] < 0) ccvalue[chan][data] = 0;
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}
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msg[2] = ccvalue[chan][data];
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}
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} else if (!index) {
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msg[2] = step?step:127;
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if (msg[2] > 127) msg[2] = 127;
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} else {
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msg[2] = 0;
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}
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break;
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case 0xe0: {
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// pitch bends are treated similarly to a controller, but with a 14 bit
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// range (0..16383, with 8192 being the center value)
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int pbval = 0;
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if (dir) {
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if (!step) step = 1;
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dir *= step;
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if (dir > 0) {
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if (pbvalue[chan] >= 16383) return;
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pbvalue[chan] += dir;
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if (pbvalue[chan] > 16383) pbvalue[chan] = 16383;
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} else {
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if (pbvalue[chan] == 0) return;
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pbvalue[chan] += dir;
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if (pbvalue[chan] < 0) pbvalue[chan] = 0;
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}
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pbval = pbvalue[chan];
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} else if (!index) {
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pbval = 8192+(step?step:8191);
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if (pbval > 16383) pbval = 16383;
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} else {
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// we use 8192 (center) as the "home" (a.k.a. "off") value, so the pitch
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// will only bend up, never down below the center value
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pbval = 8192;
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}
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// the result is a 14 bit value which gets encoded as a combination of two
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// 7 bit values which become the data bytes of the message
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msg[1] = pbval & 0x7f; // LSB (lower 7 bits)
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msg[2] = pbval >> 7; // MSB (upper 7 bits)
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break;
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}
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case 0xc0:
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// just send the message
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break;
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default:
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return;
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}
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queue_midi(&seq, msg, portno);
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}
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stroke *
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fetch_stroke(translation *tr, uint8_t portno, int status, int chan, int data,
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int index, int dir)
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{
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if (tr && tr->portno == portno) {
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switch (status) {
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case 0x90:
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return tr->note[shift][chan][data][index];
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case 0xc0:
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return tr->pc[shift][chan][data][index];
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case 0xb0:
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if (dir)
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return tr->ccs[shift][chan][data][dir>0];
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else
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return tr->cc[shift][chan][data][index];
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case 0xe0:
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if (dir)
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return tr->pbs[shift][chan][dir>0];
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else
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return tr->pb[shift][chan][index];
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default:
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return NULL;
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}
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} else
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return NULL;
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}
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#define MAX_WINNAME_SIZE 1024
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static char last_window_name[MAX_WINNAME_SIZE];
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static char last_window_class[MAX_WINNAME_SIZE];
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static Window last_focused_window = 0;
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static translation *last_window_translation = NULL, *last_translation = NULL;
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static int last_window = 0;
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void reload_callback(void)
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{
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last_focused_window = 0;
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last_window_translation = last_translation = NULL;
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last_window = 0;
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}
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static void debug_section(translation *tr)
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{
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// we do some caching of the last printed translation here, so that we don't
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// print the same message twice
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if (debug_regex && (!last_window || tr != last_translation)) {
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last_translation = tr;
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last_window = 1;
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if (tr) {
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printf("translation: %s for %s (class %s)\n",
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tr->name, last_window_name, last_window_class);
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} else {
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printf("no translation found for %s (class %s)\n",
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last_window_name, last_window_class);
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}
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}
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}
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static char *debug_key(translation *tr, char *name,
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int status, int chan, int data, int dir)
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{
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static char *note_names[] = { "C", "C#", "D", "Eb", "E", "F", "F#", "G", "G#", "A", "Bb", "B" };
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char *prefix = shift?"^":"", *suffix = "";
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strcpy(name, "??");
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switch (status) {
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case 0x90:
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sprintf(name, "%s%s%d-%d", prefix, note_names[data % 12],
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data / 12 + midi_octave, chan+1);
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break;
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case 0xb0: {
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int step = tr->cc_step[shift][chan][data][dir>0];
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if (!dir)
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suffix = "";
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else if (tr->is_incr[shift][chan][data])
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suffix = (dir<0)?"<":">";
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else
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suffix = (dir<0)?"-":"+";
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if (dir && step != 1)
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sprintf(name, "%sCC%d[%d]-%d%s", prefix, data, step, chan+1, suffix);
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else
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sprintf(name, "%sCC%d-%d%s", prefix, data, chan+1, suffix);
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break;
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}
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case 0xc0:
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sprintf(name, "%sPC%d-%d", prefix, data, chan+1);
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break;
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case 0xe0: {
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int step = tr->pb_step[shift][chan][dir>0];
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if (!dir)
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suffix = "";
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else
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suffix = (dir<0)?"-":"+";
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if (dir && step != 1)
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sprintf(name, "%sPB[%d]-%d%s", prefix, step, chan+1, suffix);
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else
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sprintf(name, "%sPB-%d%s", prefix, chan+1, suffix);
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break;
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}
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default: // this can't happen
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break;
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}
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return name;
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}
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static void debug_input(translation *tr, int portno,
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int status, int chan, int data, int data2)
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{
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char name[100];
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if (status == 0xe0)
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// translate LSB,MSB to a pitch bend value in the range -8192..8191
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data2 = ((data2 << 7) | data) - 8192;
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if (status == 0xc0)
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printf("[%d] %s\n", portno,
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debug_key(tr, name, status, chan, data, 0));
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else
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printf("[%d] %s value = %d\n", portno,
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debug_key(tr, name, status, chan, data, 0), data2);
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}
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// Some machinery to handle the debugging of section matches. This is
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// necessary since some inputs may generate a lot of calls to send_strokes()
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// without ever actually matching any output sequence at all. In such cases we
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// want to prevent a cascade of useless debugging messages by handling the
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// message printing in a lazy manner.
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static int debug_state = 0, debug_count = 0;
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static translation *debug_tr = NULL;
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static void start_debug()
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{
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// start a debugging section
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debug_state = debug_regex;
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debug_tr = NULL;
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debug_count = 0;
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}
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static void end_debug()
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{
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// end a debugging section; if we still haven't matched an output sequence,
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// but processed any input at all, we print the last matched translation
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// section now anyway
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if (debug_state && debug_count) debug_section(debug_tr);
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debug_state = 0;
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}
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void
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send_strokes(translation *tr, uint8_t portno, int status, int chan, int data,
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int index, int dir)
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{
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int nkeys = 0;
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stroke *s = fetch_stroke(tr, portno, status, chan, data, index, dir);
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// If there's no press/release translation, check whether we have got at
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// least the corresponding release/press translation, in order to prevent
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// spurious error messages if either the press or release translation just
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// happens to be empty.
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int chk = s ||
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(!dir && fetch_stroke(tr, portno, status, chan, data, !index, dir));
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if (!s && jack_num_outputs) {
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// fall back to default MIDI translation
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tr = default_midi_translation[portno];
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s = fetch_stroke(tr, portno, status, chan, data, index, dir);
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chk = chk || s ||
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(!dir && fetch_stroke(tr, portno, status, chan, data, !index, dir));
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// Ignore all MIDI input on the second port if no translation was found in
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// the [MIDI2] section (or the section is missing altogether).
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if (portno && !s) return;
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}
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if (!s) {
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// fall back to the default translation
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tr = default_translation;
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s = fetch_stroke(tr, portno, status, chan, data, index, dir);
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chk = chk || s ||
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(!dir && fetch_stroke(tr, portno, status, chan, data, !index, dir));
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}
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if (debug_regex) {
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if (s) {
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// found a sequence, print the matching section now
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debug_section(tr);
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debug_state = 0;
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} else if (!chk) {
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// No matches yet. To prevent a cascade of spurious messages, we defer
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// printing the matched section for now and just record it instead; it
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// may then be printed later.
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debug_tr = tr;
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// record that we actually tried to process some input
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debug_count = 1;
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}
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}
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if (s && debug_keys) {
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char name[100];
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print_stroke_sequence(debug_key(tr, name, status, chan, data, dir),
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dir?"":index?"U":"D", s);
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}
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while (s) {
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if (s->keysym) {
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send_key(s->keysym, s->press);
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nkeys++;
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} else if (s->shift) {
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// toggle shift status
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shift = !shift;
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} else {
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send_midi(portno, s->status, s->data, s->step, s->incr, index, dir);
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}
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s = s->next;
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}
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// no need to flush the display if we didn't send any keys
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if (nkeys) {
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XFlush(display);
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}
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}
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char *
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get_window_name(Window win)
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{
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Atom prop = XInternAtom(display, "WM_NAME", False);
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Atom type;
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int form;
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unsigned long remain, len;
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unsigned char *list;
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if (XGetWindowProperty(display, win, prop, 0, 1024, False,
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AnyPropertyType, &type, &form, &len, &remain,
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&list) != Success) {
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fprintf(stderr, "XGetWindowProperty failed for window 0x%x\n", (int)win);
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return NULL;
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}
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return (char*)list;
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}
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char *
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get_window_class(Window win)
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{
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Atom prop = XInternAtom(display, "WM_CLASS", False);
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Atom type;
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int form;
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unsigned long remain, len;
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unsigned char *list;
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if (XGetWindowProperty(display, win, prop, 0, 1024, False,
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AnyPropertyType, &type, &form, &len, &remain,
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&list) != Success) {
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fprintf(stderr, "XGetWindowProperty failed for window 0x%x\n", (int)win);
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return NULL;
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}
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return (char*)list;
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}
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char *
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walk_window_tree(Window win, char **window_class)
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{
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char *window_name;
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Window root = 0;
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Window parent;
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Window *children;
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unsigned int nchildren;
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while (win != root) {
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window_name = get_window_name(win);
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if (window_name != NULL) {
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*window_class = get_window_class(win);
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return window_name;
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}
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if (XQueryTree(display, win, &root, &parent, &children, &nchildren)) {
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win = parent;
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XFree(children);
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} else {
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fprintf(stderr, "XQueryTree failed for window 0x%x\n", (int)win);
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return NULL;
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}
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}
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return NULL;
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}
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translation *
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get_focused_window_translation()
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{
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Window focus;
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int revert_to;
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char *window_name = NULL, *window_class = NULL;
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XGetInputFocus(display, &focus, &revert_to);
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if (focus != last_focused_window) {
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last_window = 0;
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last_focused_window = focus;
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window_name = walk_window_tree(focus, &window_class);
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last_window_translation = get_translation(window_name, window_class);
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if (window_name && *window_name) {
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strncpy(last_window_name, window_name, MAX_WINNAME_SIZE);
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last_window_name[MAX_WINNAME_SIZE-1] = 0;
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} else {
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strcpy(last_window_name, "Unnamed");;
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}
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if (window_class && *window_class) {
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strncpy(last_window_class, window_class, MAX_WINNAME_SIZE);
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last_window_class[MAX_WINNAME_SIZE-1] = 0;
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} else {
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strcpy(last_window_name, "Unnamed");;
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}
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if (window_name != NULL) {
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XFree(window_name);
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}
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if (window_class != NULL) {
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XFree(window_class);
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}
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}
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return last_window_translation;
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}
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static int8_t inccvalue[2][16][128];
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static int16_t inpbvalue[2][16] =
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{{8192, 8192, 8192, 8192, 8192, 8192, 8192, 8192,
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8192, 8192, 8192, 8192, 8192, 8192, 8192, 8192},
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{8192, 8192, 8192, 8192, 8192, 8192, 8192, 8192,
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8192, 8192, 8192, 8192, 8192, 8192, 8192, 8192}};
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// If this option is enabled (-k on the command line), we make sure that each
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// "key" (note, cc, pb) is "off" before we allow it to go "on" again. This is
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// useful to eliminate double note-ons and the like, but interferes with the
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// way some controllers work, so it is disabled by default.
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static int keydown_tracker = 0;
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static uint8_t notedown[2][16][128];
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static uint8_t inccdown[2][16][128];
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static uint8_t inpbdown[2][16];
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int
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check_incr(translation *tr, uint8_t portno, int chan, int data)
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{
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if (tr && tr->portno == portno &&
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(tr->ccs[shift][chan][data][0] || tr->ccs[shift][chan][data][1]))
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return tr->is_incr[shift][chan][data];
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tr = default_midi_translation[portno];
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if (tr && tr->portno == portno &&
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(tr->ccs[shift][chan][data][0] || tr->ccs[shift][chan][data][1]))
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return tr->is_incr[shift][chan][data];
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tr = default_translation;
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if (tr && tr->portno == portno &&
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(tr->ccs[shift][chan][data][0] || tr->ccs[shift][chan][data][1]))
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return tr->is_incr[shift][chan][data];
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return 0;
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}
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int
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get_cc_step(translation *tr, uint8_t portno, int chan, int data, int dir)
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{
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if (tr && tr->portno == portno &&
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tr->ccs[shift][chan][data][dir>0])
|
|
return tr->cc_step[shift][chan][data][dir>0];
|
|
tr = default_midi_translation[portno];
|
|
if (tr && tr->portno == portno &&
|
|
tr->ccs[shift][chan][data][dir>0])
|
|
return tr->cc_step[shift][chan][data][dir>0];
|
|
tr = default_translation;
|
|
if (tr && tr->portno == portno &&
|
|
tr->ccs[shift][chan][data][dir>0])
|
|
return tr->cc_step[shift][chan][data][dir>0];
|
|
return 1;
|
|
}
|
|
|
|
int
|
|
check_pbs(translation *tr, uint8_t portno, int chan)
|
|
{
|
|
if (tr && tr->portno == portno &&
|
|
(tr->pbs[shift][chan][0] || tr->pbs[shift][chan][1]))
|
|
return 1;
|
|
tr = default_midi_translation[portno];
|
|
if (tr && tr->portno == portno &&
|
|
(tr->pbs[shift][chan][0] || tr->pbs[shift][chan][1]))
|
|
return 1;
|
|
tr = default_translation;
|
|
if (tr && tr->portno == portno &&
|
|
(tr->pbs[shift][chan][0] || tr->pbs[shift][chan][1]))
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
get_pb_step(translation *tr, uint8_t portno, int chan, int dir)
|
|
{
|
|
if (tr && tr->portno == portno &&
|
|
tr->pbs[shift][chan][dir>0])
|
|
return tr->pb_step[shift][chan][dir>0];
|
|
tr = default_midi_translation[portno];
|
|
if (tr && tr->portno == portno &&
|
|
tr->pbs[shift][chan][dir>0])
|
|
return tr->pb_step[shift][chan][dir>0];
|
|
tr = default_translation;
|
|
if (tr && tr->portno == portno &&
|
|
tr->pbs[shift][chan][dir>0])
|
|
return tr->pb_step[shift][chan][dir>0];
|
|
return 1;
|
|
}
|
|
|
|
void
|
|
handle_event(uint8_t *msg, uint8_t portno)
|
|
{
|
|
translation *tr = get_focused_window_translation();
|
|
|
|
//fprintf(stderr, "midi [%d]: %0x %0x %0x\n", portno, msg[0], msg[1], msg[2]);
|
|
int status = msg[0] & 0xf0, chan = msg[0] & 0x0f;
|
|
if (status == 0x80) {
|
|
status = 0x90;
|
|
msg[0] = status | chan;
|
|
msg[2] = 0;
|
|
}
|
|
if (debug_midi) debug_input(tr, portno, status, chan, msg[1], msg[2]);
|
|
switch (status) {
|
|
case 0xc0:
|
|
start_debug();
|
|
send_strokes(tr, portno, status, chan, msg[1], 0, 0);
|
|
send_strokes(tr, portno, status, chan, msg[1], 1, 0);
|
|
end_debug();
|
|
break;
|
|
case 0x90:
|
|
start_debug();
|
|
if (msg[2]) {
|
|
if (!keydown_tracker || !notedown[portno][chan][msg[1]]) {
|
|
send_strokes(tr, portno, status, chan, msg[1], 0, 0);
|
|
notedown[portno][chan][msg[1]] = 1;
|
|
}
|
|
} else {
|
|
if (!keydown_tracker || notedown[portno][chan][msg[1]]) {
|
|
send_strokes(tr, portno, status, chan, msg[1], 1, 0);
|
|
notedown[portno][chan][msg[1]] = 0;
|
|
}
|
|
}
|
|
end_debug();
|
|
break;
|
|
case 0xb0:
|
|
start_debug();
|
|
if (msg[2]) {
|
|
if (!keydown_tracker || !inccdown[portno][chan][msg[1]]) {
|
|
send_strokes(tr, portno, status, chan, msg[1], 0, 0);
|
|
inccdown[portno][chan][msg[1]] = 1;
|
|
}
|
|
} else {
|
|
if (!keydown_tracker || inccdown[portno][chan][msg[1]]) {
|
|
send_strokes(tr, portno, status, chan, msg[1], 1, 0);
|
|
inccdown[portno][chan][msg[1]] = 0;
|
|
}
|
|
}
|
|
// This is a bit of a kludge, since controllers can be used in two
|
|
// different ways. It may happen that we haven't got any translations for
|
|
// the pressed/released state, and that because of a step size >1 the
|
|
// incremental controllers also fail to generate a single stroke. In such
|
|
// a case, we want to pretend that we haven't actually seen any input at
|
|
// all, to prevent spurios section matches when regex debugging is in
|
|
// effect. So we reset the debug counter here, which keeps track of the
|
|
// number of generated strokes.
|
|
debug_count = 0;
|
|
if (check_incr(tr, portno, chan, msg[1])) {
|
|
// Incremental controller a la MCU. NB: This assumes a signed bit
|
|
// representation (values above 0x40 indicate counter-clockwise
|
|
// rotation), which seems to be what most DAWs expect nowadays.
|
|
// But some DAWs may also have it the other way round, so that you may
|
|
// have to swap the actions for increment and decrement. XXXTODO:
|
|
// Maybe the encoding should be a configurable parameter?
|
|
if (msg[2] < 64) {
|
|
int d = msg[2];
|
|
while (d) {
|
|
send_strokes(tr, portno, status, chan, msg[1], 0, 1);
|
|
d--;
|
|
}
|
|
} else if (msg[2] > 64) {
|
|
int d = msg[2]-64;
|
|
while (d) {
|
|
send_strokes(tr, portno, status, chan, msg[1], 0, -1);
|
|
d--;
|
|
}
|
|
}
|
|
} else if (inccvalue[portno][chan][msg[1]] != msg[2]) {
|
|
int dir = inccvalue[portno][chan][msg[1]] > msg[2] ? -1 : 1;
|
|
int step = get_cc_step(tr, portno, chan, msg[1], dir);
|
|
if (step) {
|
|
while (inccvalue[portno][chan][msg[1]] != msg[2]) {
|
|
int d = abs(inccvalue[portno][chan][msg[1]] - msg[2]);
|
|
if (d > step) d = step;
|
|
if (d < step) break;
|
|
send_strokes(tr, portno, status, chan, msg[1], 0, dir);
|
|
inccvalue[portno][chan][msg[1]] += dir*d;
|
|
}
|
|
}
|
|
}
|
|
end_debug();
|
|
break;
|
|
case 0xe0: {
|
|
int bend = ((msg[2] << 7) | msg[1]) - 8192;
|
|
start_debug();
|
|
//fprintf(stderr, "pb %d\n", bend);
|
|
if (bend) {
|
|
if (!keydown_tracker || !inpbdown[portno][chan]) {
|
|
send_strokes(tr, portno, status, chan, 0, 0, 0);
|
|
inpbdown[portno][chan] = 1;
|
|
}
|
|
} else {
|
|
if (!keydown_tracker || inpbdown[portno][chan]) {
|
|
send_strokes(tr, portno, status, chan, 0, 1, 0);
|
|
inpbdown[portno][chan] = 0;
|
|
}
|
|
}
|
|
debug_count = 0;
|
|
if (check_pbs(tr, portno, chan) && inpbvalue[portno][chan] - 8192 != bend) {
|
|
int dir = inpbvalue[portno][chan] - 8192 > bend ? -1 : 1;
|
|
int step = get_pb_step(tr, portno, chan, dir);
|
|
if (step) {
|
|
while (inpbvalue[portno][chan] - 8192 != bend) {
|
|
int d = abs(inpbvalue[portno][chan] - 8192 - bend);
|
|
if (d > step) d = step;
|
|
if (d < step) break;
|
|
send_strokes(tr, portno, status, chan, 0, 0, dir);
|
|
inpbvalue[portno][chan] += dir*d;
|
|
}
|
|
}
|
|
}
|
|
end_debug();
|
|
break;
|
|
}
|
|
default:
|
|
// ignore everything else
|
|
break;
|
|
}
|
|
}
|
|
|
|
void help(char *progname)
|
|
{
|
|
fprintf(stderr, "Usage: %s [-h] [-k] [-o[2]] [-j name] [-r rcfile] [-d[rskmj]]\n", progname);
|
|
fprintf(stderr, "-h print this message\n");
|
|
fprintf(stderr, "-k keep track of key status (ignore double notes)\n");
|
|
fprintf(stderr, "-o enable MIDI output (add 2 for a second pair of ports)\n");
|
|
fprintf(stderr, "-j jack client name (default: midizap)\n");
|
|
fprintf(stderr, "-r config file name (default: MIDIZAP_CONFIG_FILE variable or ~/.midizaprc)\n");
|
|
fprintf(stderr, "-d debug (r = regex, s = strokes, k = keys, m = midi, j = jack; default: all)\n");
|
|
}
|
|
|
|
uint8_t quit = 0;
|
|
|
|
void quitter()
|
|
{
|
|
quit = 1;
|
|
}
|
|
|
|
// poll interval in microsec (this shouldn't be too large to avoid jitter)
|
|
#define POLL_INTERVAL 1000
|
|
// how often we check the config file per sec (> 0, < 1000000/POLL_INTERVAL)
|
|
#define CONF_FREQ 1
|
|
#define MAX_COUNT (1000000/CONF_FREQ/POLL_INTERVAL)
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
uint8_t msg[3];
|
|
int opt, count = 0;
|
|
|
|
while ((opt = getopt(argc, argv, "hko::d::j:r:")) != -1) {
|
|
switch (opt) {
|
|
case 'h':
|
|
help(argv[0]);
|
|
exit(0);
|
|
case 'k':
|
|
// see comment on -k and keydown_tracker above
|
|
keydown_tracker = 1;
|
|
break;
|
|
case 'o':
|
|
jack_num_outputs = 1;
|
|
if (optarg && *optarg) {
|
|
const char *a = optarg;
|
|
if (*a == '2') {
|
|
jack_num_outputs = 2;
|
|
} else if (*a && *a != '1') {
|
|
fprintf(stderr, "%s: wrong port number (-o), must be 1 or 2\n", argv[0]);
|
|
fprintf(stderr, "Try -h for help.\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
break;
|
|
case 'd':
|
|
if (optarg && *optarg) {
|
|
const char *a = optarg;
|
|
while (*a) {
|
|
switch (*a) {
|
|
case 'r':
|
|
default_debug_regex = 1;
|
|
break;
|
|
case 's':
|
|
default_debug_strokes = 1;
|
|
break;
|
|
case 'k':
|
|
default_debug_keys = 1;
|
|
break;
|
|
case 'm':
|
|
default_debug_midi = 1;
|
|
break;
|
|
case 'j':
|
|
debug_jack = 1;
|
|
break;
|
|
default:
|
|
fprintf(stderr, "%s: unknown debugging option (-d), must be r, s, k or j\n", argv[0]);
|
|
fprintf(stderr, "Try -h for help.\n");
|
|
exit(1);
|
|
}
|
|
++a;
|
|
}
|
|
} else {
|
|
default_debug_regex = default_debug_strokes = default_debug_keys =
|
|
default_debug_midi = 1;
|
|
debug_jack = 1;
|
|
}
|
|
break;
|
|
case 'j':
|
|
jack_client_name = optarg;
|
|
break;
|
|
case 'r':
|
|
config_file_name = optarg;
|
|
break;
|
|
default:
|
|
fprintf(stderr, "Try -h for help.\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
if (optind < argc) {
|
|
help(argv[0]);
|
|
exit(1);
|
|
}
|
|
|
|
initdisplay();
|
|
|
|
// Force the config file to be loaded initially, so that we pick up the Jack
|
|
// client name to be used (if not set from the command line). This cannot be
|
|
// changed later, so if you want to make changes to the client name in the
|
|
// config file take effect, you need to restart the program.
|
|
read_config_file();
|
|
|
|
seq.client_name = jack_client_name;
|
|
seq.n_in = jack_num_outputs>1?jack_num_outputs:1;
|
|
seq.n_out = jack_num_outputs;
|
|
if (!init_jack(&seq, debug_jack)) {
|
|
exit(1);
|
|
}
|
|
|
|
signal(SIGINT, quitter);
|
|
while (!quit) {
|
|
uint8_t portno;
|
|
while (pop_midi(&seq, msg, &portno)) {
|
|
handle_event(msg, portno);
|
|
count = 0;
|
|
}
|
|
usleep(POLL_INTERVAL);
|
|
if (++count >= MAX_COUNT) {
|
|
// Check whether to reload the config file if we haven't seen any MIDI
|
|
// input in a while. Note that if the file *is* reloaded, then we also
|
|
// need to reset last_focused_window here, so that the translations of
|
|
// the focused window are recomputed the next time we handle an event.
|
|
if (read_config_file()) last_focused_window = 0;
|
|
count = 0;
|
|
}
|
|
}
|
|
printf(" [exiting]\n");
|
|
close_jack(&seq);
|
|
}
|