141 lines
4.3 KiB
C
141 lines
4.3 KiB
C
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// Copyright 2013 Eric Messick (FixedImagePhoto.com/Contact)
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// Copyright 2018 Albert Graef <aggraef@gmail.com>
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#include <limits.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <stdint.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <linux/input.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include<signal.h>
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#include <regex.h>
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#include <X11/Xlib.h>
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#include <X11/extensions/XTest.h>
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#include <X11/keysym.h>
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#include <X11/Xatom.h>
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// delay in ms before processing each XTest event
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// CurrentTime means no delay
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#define DELAY CurrentTime
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// we define these as extra KeySyms to represent mouse events
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#define XK_Button_0 0x2000000 // just an offset, not a real button
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#define XK_Button_1 0x2000001
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#define XK_Button_2 0x2000002
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#define XK_Button_3 0x2000003
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#define XK_Scroll_Up 0x2000004
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#define XK_Scroll_Down 0x2000005
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#define PRESS 1
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#define RELEASE 2
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#define PRESS_RELEASE 3
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#define HOLD 4
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typedef struct _stroke {
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struct _stroke *next;
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// nonzero keysym indicates a key event
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KeySym keysym;
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int8_t press; // zero -> release, non-zero -> press
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// nonzero value indicates a shift event
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int8_t shift;
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// keysym == shift == 0 => MIDI event
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int status, data; // status and, if applicable, first data byte
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int step; // step size (1, 127 or 8191 by default, depending on status)
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// discrete steps (for special "modulus" translations only)
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int n_steps, *steps;
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// the incremental bit indicates an incremental control change (typically
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// used with endless rotary encoders) to be represented as a sign bit value
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uint8_t incr;
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// the swap bit indicates that 1st and 2nd data byte are to be swapped in
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// mod translations
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uint8_t swap;
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// the change bit indicates that the message should only be output if its
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// value has changed since the last time
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uint8_t change;
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// cached values for the change bit
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int d, v;
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// the recursive bit indicates a MIDI message which is to be translated
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// recursively
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uint8_t recursive;
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// the feedback bit indicates a MIDI message which is to be sent back to
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// device or application (flipping the output port)
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uint8_t feedback;
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// the dirty bit indicates a MIDI event for which a release event still
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// needs to be generated in key events
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uint8_t dirty;
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} stroke;
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typedef struct _stroke_data {
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// key (MIDI channel and, for note/CC/PB, data byte)
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uint8_t chan, data;
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// stroke data, indexed by press/release or up/down index
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stroke *s[2];
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// step size
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int step[2], n_steps[2], *steps[2];
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// incr flag (CC only)
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uint8_t is_incr;
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// modulus
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uint16_t mod;
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// anyshift flag (default rule)
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uint8_t anyshift;
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} stroke_data;
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#define N_SHIFTS 4 // number of distinct shift states
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#define N_ST (N_SHIFTS+1)
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typedef struct _translation {
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struct _translation *next;
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char *name;
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int mode, is_default;
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regex_t regex;
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uint8_t portno;
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// these are indexed by shift status
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stroke_data *note[N_ST];
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stroke_data *notes[N_ST];
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stroke_data *pc[N_ST];
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stroke_data *cc[N_ST];
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stroke_data *ccs[N_ST];
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stroke_data *pb[N_ST];
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stroke_data *pbs[N_ST];
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stroke_data *kp[N_ST];
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stroke_data *kps[N_ST];
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stroke_data *cp[N_ST];
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stroke_data *cps[N_ST];
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// actual and allocated sizes (can be at most 16*128)
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uint16_t n_note[N_ST], n_notes[N_ST], n_pc[N_ST],
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n_cc[N_ST], n_ccs[N_ST], n_pb[N_ST], n_pbs[N_ST],
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n_kp[N_ST], n_kps[N_ST], n_cp[N_ST], n_cps[N_ST];
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uint16_t a_note[N_ST], a_notes[N_ST], a_pc[N_ST],
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a_cc[N_ST], a_ccs[N_ST], a_pb[N_ST], a_pbs[N_ST],
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a_kp[N_ST], a_kps[N_ST], a_cp[N_ST], a_cps[N_ST];
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} translation;
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extern void reload_callback(void);
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extern int read_config_file(void);
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extern translation *get_translation(char *win_title, char *win_class);
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extern void print_stroke_sequence(char *name, char *up_or_down, stroke *s,
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int mod, int step, int n_steps, int *steps,
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int val);
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extern translation *default_translation, *default_midi_translation[2];
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extern int debug_regex, debug_strokes, debug_keys, debug_midi;
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extern int default_debug_regex, default_debug_strokes, default_debug_keys,
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default_debug_midi;
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extern char *config_file_name;
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extern int jack_num_outputs, auto_feedback;
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extern int passthrough[2], system_passthrough[2];
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extern int midi_octave, shift;
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extern char *jack_client_name;
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