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Diffstat (limited to 'pd/src/s_unix.c')
| -rw-r--r-- | pd/src/s_unix.c | 454 |
1 files changed, 0 insertions, 454 deletions
diff --git a/pd/src/s_unix.c b/pd/src/s_unix.c deleted file mode 100644 index 85282f3b..00000000 --- a/pd/src/s_unix.c +++ /dev/null @@ -1,454 +0,0 @@ -/* Copyright (c) 1997-1999 Miller Puckette and others. -* For information on usage and redistribution, and for a DISCLAIMER OF ALL -* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */ - -/* this file is misnamed. It seems to handle clock functions and MIDI I/O; -probably should be called "s_midi.c" */ - -#include "m_imp.h" -#ifdef UNIX -#include <unistd.h> -#include <sys/time.h> -#ifdef HAVE_BSTRING_H -#include <bstring.h> -#endif -#endif -#ifdef NT -#include <winsock.h> -#include <sys/types.h> -#include <sys/timeb.h> -#include <wtypes.h> -#endif -#include <string.h> -#include <stdio.h> -#include <signal.h> - -#ifdef NT -static LARGE_INTEGER nt_inittime; -static double nt_freq = 0; - -static void sys_initntclock(void) -{ - LARGE_INTEGER f1; - LARGE_INTEGER now; - QueryPerformanceCounter(&now); - if (!QueryPerformanceFrequency(&f1)) - { - fprintf(stderr, "pd: QueryPerformanceFrequency failed\n"); - f1.QuadPart = 1; - } - nt_freq = f1.QuadPart; - nt_inittime = now; -} - -#if 0 - /* this is a version you can call if you did the QueryPerformanceCounter - call yourself. Necessary for time tagging incoming MIDI at interrupt - level, for instance; but we're not doing that just now. */ - -double nt_tixtotime(LARGE_INTEGER *dumbass) -{ - if (nt_freq == 0) sys_initntclock(); - return (((double)(dumbass->QuadPart - nt_inittime.QuadPart)) / nt_freq); -} -#endif -#endif /* NT */ - -double sys_getrealtime(void) /* get "real time" in seconds */ -{ -#ifdef UNIX - static struct timeval then; - struct timeval now; - gettimeofday(&now, 0); - if (then.tv_sec == 0 && then.tv_usec == 0) then = now; - return ((now.tv_sec - then.tv_sec) + - (1./1000000.) * (now.tv_usec - then.tv_usec)); -#endif -#ifdef NT - LARGE_INTEGER now; - QueryPerformanceCounter(&now); - if (nt_freq == 0) sys_initntclock(); - return (((double)(now.QuadPart - nt_inittime.QuadPart)) / nt_freq); -#endif -} - -typedef struct _midiqelem -{ - double q_time; - int q_portno; - unsigned char q_onebyte; - unsigned char q_byte1; - unsigned char q_byte2; - unsigned char q_byte3; -} t_midiqelem; - -#define MIDIQSIZE 1024 - -t_midiqelem midi_outqueue[MIDIQSIZE]; -int midi_outhead, midi_outtail; -t_midiqelem midi_inqueue[MIDIQSIZE]; -int midi_inhead, midi_intail; -static double sys_midiinittime; - - /* this is our current estimate for at what "system" real time the - current logical time's output should occur. */ -static double sys_dactimeminusrealtime; - /* same for input, should be schduler advance earlier. */ -static double sys_adctimeminusrealtime; - -static double sys_newdactimeminusrealtime = -1e20; -static double sys_newadctimeminusrealtime = -1e20; -static double sys_whenupdate; - -void sys_initmidiqueue( void) -{ - sys_midiinittime = clock_getlogicaltime(); - sys_dactimeminusrealtime = sys_adctimeminusrealtime = 0; -} - - /* this is called from the OS dependent code from time to time when we - think we know the delay (outbuftime) in seconds, at which the last-output - audio sample will go out the door. */ -void sys_setmiditimediff(double inbuftime, double outbuftime) -{ - double dactimeminusrealtime = - .001 * clock_gettimesince(sys_midiinittime) - - outbuftime - sys_getrealtime(); - double adctimeminusrealtime = - .001 * clock_gettimesince(sys_midiinittime) - + inbuftime - sys_getrealtime(); - if (dactimeminusrealtime > sys_newdactimeminusrealtime) - sys_newdactimeminusrealtime = dactimeminusrealtime; - if (adctimeminusrealtime > sys_newadctimeminusrealtime) - sys_newadctimeminusrealtime = adctimeminusrealtime; - if (sys_getrealtime() > sys_whenupdate) - { - sys_dactimeminusrealtime = sys_newdactimeminusrealtime; - sys_adctimeminusrealtime = sys_newadctimeminusrealtime; - sys_newdactimeminusrealtime = -1e20; - sys_newadctimeminusrealtime = -1e20; - sys_whenupdate = sys_getrealtime() + 1; - } -} - - /* return the logical time of the DAC sample we believe is currently - going out, based on how much "system time" has elapsed since the - last time sys_setmiditimediff got called. */ -static double sys_getmidioutrealtime( void) -{ - return (sys_getrealtime() + sys_dactimeminusrealtime); -} - -static double sys_getmidiinrealtime( void) -{ - return (sys_getrealtime() + sys_adctimeminusrealtime); -} - -static void sys_putnext( void) -{ - int portno = midi_outqueue[midi_outtail].q_portno; - if (midi_outqueue[midi_outtail].q_onebyte) - sys_putmidibyte(portno, midi_outqueue[midi_outtail].q_byte1); - else sys_putmidimess(portno, midi_outqueue[midi_outtail].q_byte1, - midi_outqueue[midi_outtail].q_byte2, - midi_outqueue[midi_outtail].q_byte3); - midi_outtail = (midi_outtail + 1 == MIDIQSIZE ? 0 : midi_outtail + 1); -} - -/* #define TEST_DEJITTER */ - -void sys_pollmidioutqueue( void) -{ -#ifdef TEST_DEJITTER - static int db = 0; -#endif - double midirealtime = sys_getmidioutrealtime(); -#ifdef TEST_DEJITTER - if (midi_outhead == midi_outtail) - db = 0; -#endif - while (midi_outhead != midi_outtail) - { -#ifdef TEST_DEJITTER - if (!db) - { - post("out: del %f, midiRT %f logicaltime %f, RT %f dacminusRT %f", - (midi_outqueue[midi_outtail].q_time - midirealtime), - midirealtime, .001 * clock_gettimesince(sys_midiinittime), - sys_getrealtime(), sys_dactimeminusrealtime); - db = 1; - } -#endif - if (midi_outqueue[midi_outtail].q_time <= midirealtime) - sys_putnext(); - else break; - } -} - -static void sys_queuemidimess(int portno, int onebyte, int a, int b, int c) -{ - t_midiqelem *midiqelem; - int newhead = midi_outhead +1; - if (newhead == MIDIQSIZE) - newhead = 0; - /* if FIFO is full flush an element to make room */ - if (newhead == midi_outtail) - sys_putnext(); - midi_outqueue[midi_outhead].q_portno = portno; - midi_outqueue[midi_outhead].q_onebyte = onebyte; - midi_outqueue[midi_outhead].q_byte1 = a; - midi_outqueue[midi_outhead].q_byte2 = b; - midi_outqueue[midi_outhead].q_byte3 = c; - midi_outqueue[midi_outhead].q_time = - .001 * clock_gettimesince(sys_midiinittime); - midi_outhead = newhead; - sys_pollmidioutqueue(); -} - -#define MIDI_NOTEON 144 -#define MIDI_POLYAFTERTOUCH 160 -#define MIDI_CONTROLCHANGE 176 -#define MIDI_PROGRAMCHANGE 192 -#define MIDI_AFTERTOUCH 208 -#define MIDI_PITCHBEND 224 - -void outmidi_noteon(int portno, int channel, int pitch, int velo) -{ - if (pitch < 0) pitch = 0; - else if (pitch > 127) pitch = 127; - if (velo < 0) velo = 0; - else if (velo > 127) velo = 127; - sys_queuemidimess(portno, 0, MIDI_NOTEON + (channel & 0xf), pitch, velo); -} - -void outmidi_controlchange(int portno, int channel, int ctl, int value) -{ - if (ctl < 0) ctl = 0; - else if (ctl > 127) ctl = 127; - if (value < 0) value = 0; - else if (value > 127) value = 127; - sys_queuemidimess(portno, 0, MIDI_CONTROLCHANGE + (channel & 0xf), - ctl, value); -} - -void outmidi_programchange(int portno, int channel, int value) -{ - if (value < 0) value = 0; - else if (value > 127) value = 127; - sys_queuemidimess(portno, 0, - MIDI_PROGRAMCHANGE + (channel & 0xf), value, 0); -} - -void outmidi_pitchbend(int portno, int channel, int value) -{ - if (value < 0) value = 0; - else if (value > 16383) value = 16383; - sys_queuemidimess(portno, 0, MIDI_PITCHBEND + (channel & 0xf), - (value & 127), ((value>>7) & 127)); -} - -void outmidi_aftertouch(int portno, int channel, int value) -{ - if (value < 0) value = 0; - else if (value > 127) value = 127; - sys_queuemidimess(portno, 0, MIDI_AFTERTOUCH + (channel & 0xf), value, 0); -} - -void outmidi_polyaftertouch(int portno, int channel, int pitch, int value) -{ - if (pitch < 0) pitch = 0; - else if (pitch > 127) pitch = 127; - if (value < 0) value = 0; - else if (value > 127) value = 127; - sys_queuemidimess(portno, 0, MIDI_POLYAFTERTOUCH + (channel & 0xf), - pitch, value); -} - -void outmidi_mclk(int portno) -{ - sys_queuemidimess(portno, 1, 0xf8, 0,0); -} - -/* ------------------------- MIDI input queue handling ------------------ */ -typedef struct midiparser -{ - int mp_status; - int mp_sysex; - int mp_gotbyte1; - int mp_byte1; -} t_midiparser; - -#define MIDINOTEOFF 0x80 -#define MIDINOTEON 0x90 -#define MIDIPOLYTOUCH 0xa0 -#define MIDICONTROLCHANGE 0xb0 -#define MIDIPROGRAMCHANGE 0xc0 -#define MIDICHANNELTOUCH 0xd0 -#define MIDIPITCHBEND 0xe0 - /* functions in x_midi.c */ -void inmidi_realtimein(int portno, int cmd); -void inmidi_byte(int portno, int byte); -void inmidi_sysex(int portno, int byte); -void inmidi_noteon(int portno, int channel, int pitch, int velo); -void inmidi_controlchange(int portno, int channel, int ctlnumber, int value); -void inmidi_programchange(int portno, int channel, int value); -void inmidi_pitchbend(int portno, int channel, int value); -void inmidi_aftertouch(int portno, int channel, int value); -void inmidi_polyaftertouch(int portno, int channel, int pitch, int value); - -static void sys_dispatchnextmidiin( void) -{ - static t_midiparser parser[MAXMIDIINDEV], *parserp; - int portno = midi_inqueue[midi_intail].q_portno, - byte = midi_inqueue[midi_intail].q_byte1; - if (!midi_inqueue[midi_intail].q_onebyte) - bug("sys_dispatchnextmidiin"); - if (portno < 0 || portno >= MAXMIDIINDEV) - bug("sys_dispatchnextmidiin 2"); - parserp = parser + portno; - outlet_setstacklim(); - - if (byte >= 0xf8) - inmidi_realtimein(portno, byte); - else - { - inmidi_byte(portno, byte); - if (byte < 0xf0) - { - if (byte & 0x80) - { - parserp->mp_status = byte; - parserp->mp_gotbyte1 = 0; - } - else - { - int cmd = (parserp->mp_status & 0xf0); - int chan = (parserp->mp_status & 0xf); - int byte1 = parserp->mp_byte1, gotbyte1 = parserp->mp_gotbyte1; - switch (cmd) - { - case MIDINOTEOFF: - if (gotbyte1) - inmidi_noteon(portno, chan, byte1, 0), - parserp->mp_gotbyte1 = 0; - else parserp->mp_byte1 = byte, parserp->mp_gotbyte1 = 1; - break; - case MIDINOTEON: - if (gotbyte1) - inmidi_noteon(portno, chan, byte1, byte), - parserp->mp_gotbyte1 = 0; - else parserp->mp_byte1 = byte, parserp->mp_gotbyte1 = 1; - break; - case MIDIPOLYTOUCH: - if (gotbyte1) - inmidi_polyaftertouch(portno, chan, byte1, byte), - parserp->mp_gotbyte1 = 0; - else parserp->mp_byte1 = byte, parserp->mp_gotbyte1 = 1; - break; - case MIDICONTROLCHANGE: - if (gotbyte1) - inmidi_controlchange(portno, chan, byte1, byte), - parserp->mp_gotbyte1 = 0; - else parserp->mp_byte1 = byte, parserp->mp_gotbyte1 = 1; - break; - case MIDIPROGRAMCHANGE: - inmidi_programchange(portno, chan, byte); - break; - case MIDICHANNELTOUCH: - inmidi_aftertouch(portno, chan, byte); - break; - case MIDIPITCHBEND: - if (gotbyte1) - inmidi_pitchbend(portno, chan, ((byte << 7) + byte1)), - parserp->mp_gotbyte1 = 0; - else parserp->mp_byte1 = byte, parserp->mp_gotbyte1 = 1; - break; - } - } - } - } - midi_intail = (midi_intail + 1 == MIDIQSIZE ? 0 : midi_intail + 1); -} - -void sys_pollmidiinqueue( void) -{ -#ifdef TEST_DEJITTER - static int db = 0; -#endif - double logicaltime = .001 * clock_gettimesince(sys_midiinittime); -#ifdef TEST_DEJITTER - if (midi_inhead == midi_intail) - db = 0; -#endif - while (midi_inhead != midi_intail) - { -#ifdef TEST_DEJITTER - if (!db) - { - post("in del %f, logicaltime %f, RT %f adcminusRT %f", - (midi_inqueue[midi_intail].q_time - logicaltime), - logicaltime, sys_getrealtime(), sys_adctimeminusrealtime); - db = 1; - } -#endif -#if 0 - if (midi_inqueue[midi_intail].q_time <= logicaltime - 0.007) - post("late %f", - 1000 * (logicaltime - midi_inqueue[midi_intail].q_time)); -#endif - if (midi_inqueue[midi_intail].q_time <= logicaltime) - { -#if 0 - post("diff %f", - 1000* (logicaltime - midi_inqueue[midi_intail].q_time)); -#endif - sys_dispatchnextmidiin(); - } - else break; - } -} - - /* this should be called from the system dependent MIDI code when a byte - comes in, as a result of our calling sys_poll_midi. We stick it on a - timetag queue and dispatch it at the appropriate logical time. */ - - -void sys_midibytein(int portno, int byte) -{ - static int warned = 0; - t_midiqelem *midiqelem; - int newhead = midi_inhead +1; - if (newhead == MIDIQSIZE) - newhead = 0; - /* if FIFO is full flush an element to make room */ - if (newhead == midi_intail) - { - if (!warned) - { - post("warning: MIDI timing FIFO overflowed"); - warned = 1; - } - sys_dispatchnextmidiin(); - } - midi_inqueue[midi_inhead].q_portno = portno; - midi_inqueue[midi_inhead].q_onebyte = 1; - midi_inqueue[midi_inhead].q_byte1 = byte; - midi_inqueue[midi_inhead].q_time = sys_getmidiinrealtime(); - midi_inhead = newhead; - sys_pollmidiinqueue(); -} - -void sys_pollmidiqueue( void) -{ -#if 0 - static double lasttime; - double newtime = sys_getrealtime(); - if (newtime - lasttime > 0.007) - post("delay %d", (int)(1000 * (newtime - lasttime))); - lasttime = newtime; -#endif - sys_poll_midi(); /* OS dependent poll for MIDI input */ - sys_pollmidioutqueue(); - sys_pollmidiinqueue(); -} - |