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- /*
-
- TiMidity -- Experimental MIDI to WAVE converter
- Copyright (C) 1995 Tuukka Toivonen <toivonen@clinet.fi>
-
- This program 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 2 of the License, or
- (at your option) any later version.
-
- This program 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 this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- motif_ctl.c: written by Vincent Pagel (pagel@loria.fr) 10/4/95
-
- A motif interface for TIMIDITY : to prevent X redrawings from
- interfering with the audio computation, I don't use the XtAppAddWorkProc
-
- I create a pipe between the timidity process and a Motif interface
- process forked from the 1st one
-
- */
-
- #include <stdio.h>
- #include <stdlib.h>
- #include <unistd.h>
- #include <stdarg.h>
-
- #include "config.h"
- #include "common.h"
- #include "instrum.h"
- #include "playmidi.h"
- #include "output.h"
- #include "controls.h"
- #include "motif.h"
-
- static void ctl_refresh(void);
- static void ctl_total_time(int tt);
- static void ctl_master_volume(int mv);
- static void ctl_file_name(char *name);
- static void ctl_current_time(int ct);
- static void ctl_note(int v);
- static void ctl_program(int ch, int val);
- static void ctl_volume(int channel, int val);
- static void ctl_expression(int channel, int val);
- static void ctl_panning(int channel, int val);
- static void ctl_sustain(int channel, int val);
- static void ctl_pitch_bend(int channel, int val);
- static void ctl_reset(void);
- static int ctl_open(int using_stdin, int using_stdout);
- static void ctl_close(void);
- static int ctl_read(int32 *valp);
- static int cmsg(int type, int verbosity_level, char *fmt, ...);
- static void ctl_pass_playing_list(int number_of_files, char *list_of_files[]);
-
- /**********************************************/
- /* export the interface functions */
-
- #define ctl motif_control_mode
-
- ControlMode ctl=
- {
- "motif interface", 'm',
- 1,0,0,
- ctl_open, ctl_pass_playing_list, ctl_close, ctl_read, cmsg,
- ctl_refresh, ctl_reset, ctl_file_name, ctl_total_time, ctl_current_time,
- ctl_note,
- ctl_master_volume, ctl_program, ctl_volume,
- ctl_expression, ctl_panning, ctl_sustain, ctl_pitch_bend
- };
-
-
- /***********************************************************************/
- /* Put controls on the pipe */
- /***********************************************************************/
- static int cmsg(int type, int verbosity_level, char *fmt, ...)
- {
- char local[255];
-
- va_list ap;
- if ((type==CMSG_TEXT || type==CMSG_INFO || type==CMSG_WARNING) &&
- ctl.verbosity<verbosity_level)
- return 0;
-
- va_start(ap, fmt);
- if (!ctl.opened)
- {
- vfprintf(stderr, fmt, ap);
- fprintf(stderr, "\n");
- }
- else if (ctl.trace_playing)
- {
- vsprintf(local, fmt, ap);
- pipe_int_write(CMSG_MESSAGE);
- pipe_int_write(type);
- pipe_string_write(local);
- }
- va_end(ap);
- return 0;
- }
-
-
- static void _ctl_refresh(void)
- {
- /* pipe_int_write(REFRESH_MESSAGE); */
- }
-
- static void ctl_refresh(void)
- {
- if (ctl.trace_playing)
- _ctl_refresh();
- }
-
- static void ctl_total_time(int tt)
- {
- int centisecs=tt/(play_mode->rate/100);
-
- pipe_int_write(TOTALTIME_MESSAGE);
- pipe_int_write(centisecs);
- }
-
- static void ctl_master_volume(int mv)
- {
- pipe_int_write(MASTERVOL_MESSAGE);
- pipe_int_write(mv);
- }
-
- static void ctl_file_name(char *name)
- {
- pipe_int_write(FILENAME_MESSAGE);
- pipe_string_write(name);
- }
-
- static void ctl_current_time(int ct)
- {
- int i,v;
- int centisecs=ct/(play_mode->rate/100);
-
- if (!ctl.trace_playing)
- return;
-
- v=0;
- i=voices;
- while (i--)
- if (voice[i].status!=VOICE_FREE) v++;
-
- pipe_int_write(CURTIME_MESSAGE);
- pipe_int_write(centisecs);
- pipe_int_write(v);
- }
-
- static void ctl_note(int v)
- {
- /* int xl;
- if (!ctl.trace_playing)
- return;
- xl=voice[v].note%(COLS-24);
- wmove(dftwin, 8+voice[v].channel,xl+3);
- switch(voice[v].status)
- {
- case VOICE_DIE:
- waddch(dftwin, ',');
- break;
- case VOICE_FREE:
- waddch(dftwin, '.');
- break;
- case VOICE_ON:
- wattron(dftwin, A_BOLD);
- waddch(dftwin, '0'+(10*voice[v].velocity)/128);
- wattroff(dftwin, A_BOLD);
- break;
- case VOICE_OFF:
- case VOICE_SUSTAINED:
- waddch(dftwin, '0'+(10*voice[v].velocity)/128);
- break;
- }
- */
- }
-
- static void ctl_program(int ch, int val)
- {
- /* if (!ctl.trace_playing)
- return;
- wmove(dftwin, 8+ch, COLS-20);
- if (ISDRUMCHANNEL(ch))
- {
- wattron(dftwin, A_BOLD);
- wprintw(dftwin, "%03d", val);
- wattroff(dftwin, A_BOLD);
- }
- else
- wprintw(dftwin, "%03d", val);
- */
- }
-
- static void ctl_volume(int channel, int val)
- {
- /*
- if (!ctl.trace_playing)
- return;
- wmove(dftwin, 8+channel, COLS-16);
- wprintw(dftwin, "%3d", (val*100)/127);
- */
- }
-
- static void ctl_expression(int channel, int val)
- {
- /* if (!ctl.trace_playing)
- return;
- wmove(dftwin, 8+channel, COLS-12);
- wprintw(dftwin, "%3d", (val*100)/127);
- */
- }
-
- static void ctl_panning(int channel, int val)
- {
- /* if (!ctl.trace_playing)
- return;
-
- if (val==NO_PANNING)
- waddstr(dftwin, " ");
- else if (val<5)
- waddstr(dftwin, " L ");
- else if (val>123)
- waddstr(dftwin, " R ");
- else if (val>60 && val<68)
- waddstr(dftwin, " C ");
- */
- }
-
- static void ctl_sustain(int channel, int val)
- {
- /*
- if (!ctl.trace_playing)
- return;
-
- if (val) waddch(dftwin, 'S');
- else waddch(dftwin, ' ');
- */
- }
-
- static void ctl_pitch_bend(int channel, int val)
- {
- /* if (!ctl.trace_playing)
- return;
-
- if (val>0x2000) waddch(dftwin, '+');
- else if (val<0x2000) waddch(dftwin, '-');
- else waddch(dftwin, ' ');
- */
- }
-
- static void ctl_reset(void)
- {
- /* int i,j;
- if (!ctl.trace_playing)
- return;
- for (i=0; i<16; i++)
- {
- ctl_program(i, channel[i].program);
- ctl_volume(i, channel[i].volume);
- ctl_expression(i, channel[i].expression);
- ctl_panning(i, channel[i].panning);
- ctl_sustain(i, channel[i].sustain);
- ctl_pitch_bend(i, channel[i].pitchbend);
- }
- _ctl_refresh();
- */
- }
-
- /***********************************************************************/
- /* OPEN THE CONNECTION */
- /***********************************************************************/
- static int ctl_open(int using_stdin, int using_stdout)
- {
- ctl.opened=1;
- ctl.trace_playing=1; /* Default mode with Motif interface */
-
- /* The child process won't come back from this call */
- pipe_open();
-
- return 0;
- }
-
- /* Tells the window to disapear */
- static void ctl_close(void)
- {
- if (ctl.opened)
- {
- pipe_int_write(CLOSE_MESSAGE);
- ctl.opened=0;
- }
- }
-
-
- /*
- * Read information coming from the window in a BLOCKING way
- */
- static int ctl_blocking_read(int32 *valp)
- {
- int command;
- int new_volume;
- int new_centiseconds;
-
- pipe_int_read(&command);
-
- while (1) /* Loop after pause sleeping to treat other buttons! */
- {
-
- switch(command)
- {
- case MOTIF_CHANGE_VOLUME:
- pipe_int_read(&new_volume);
- *valp= new_volume - amplification ;
- return RC_CHANGE_VOLUME;
-
- case MOTIF_CHANGE_LOCATOR:
- pipe_int_read(&new_centiseconds);
- *valp= new_centiseconds*(play_mode->rate / 100) ;
- return RC_JUMP;
-
- case MOTIF_QUIT:
- return RC_QUIT;
-
- case MOTIF_PLAY_FILE:
- return RC_LOAD_FILE;
-
- case MOTIF_NEXT:
- return RC_NEXT;
-
- case MOTIF_PREV:
- return RC_REALLY_PREVIOUS;
-
- case MOTIF_RESTART:
- return RC_RESTART;
-
- case MOTIF_FWD:
- *valp=play_mode->rate;
- return RC_FORWARD;
-
- case MOTIF_RWD:
- *valp=play_mode->rate;
- return RC_BACK;
- }
-
-
- if (command==MOTIF_PAUSE)
- {
- pipe_int_read(&command); /* Blocking reading => Sleep ! */
- if (command==MOTIF_PAUSE)
- return RC_NONE; /* Resume where we stopped */
- }
- else
- {
- fprintf(stderr,"UNKNOWN RC_MESSAGE %i\n",command);
- return RC_NONE;
- }
- }
-
- }
-
- /*
- * Read information coming from the window in a non blocking way
- */
- static int ctl_read(int32 *valp)
- {
- int num;
-
- /* We don't wan't to lock on reading */
- num=pipe_read_ready();
-
- if (num==0)
- return RC_NONE;
-
- return(ctl_blocking_read(valp));
- }
-
- static void ctl_pass_playing_list(int number_of_files, char *list_of_files[])
- {
- int i=0;
- char file_to_play[1000];
- int command;
- int32 val;
-
- /* Pass the list to the interface */
- pipe_int_write(FILE_LIST_MESSAGE);
- pipe_int_write(number_of_files);
- for (i=0;i<number_of_files;i++)
- pipe_string_write(list_of_files[i]);
-
- /* Ask the interface for a filename to play -> begin to play automatically */
- pipe_int_write(NEXT_FILE_MESSAGE);
-
- command = ctl_blocking_read(&val);
-
- /* Main Loop */
- for (;;)
- {
- if (command==RC_LOAD_FILE)
- {
- /* Read a LoadFile command */
- pipe_string_read(file_to_play);
- command=play_midi_file(file_to_play);
- }
- else
- {
- if (command==RC_QUIT)
- return;
- if (command==RC_ERROR)
- command=RC_TUNE_END; /* Launch next file */
-
-
- switch(command)
- {
- case RC_NEXT:
- pipe_int_write(NEXT_FILE_MESSAGE);
- break;
- case RC_REALLY_PREVIOUS:
- pipe_int_write(PREV_FILE_MESSAGE);
- break;
- case RC_TUNE_END:
- pipe_int_write(TUNE_END_MESSAGE);
- break;
- default:
- printf("PANIC !!! OTHER COMMAND ERROR ?!?! %i\n",command);
- }
-
- command = ctl_blocking_read(&val);
- }
- }
- }
-