nuclear@1: /*-
nuclear@1:  * Copyright (c) 2007, 2008 Edward Tomasz Napierała <trasz@FreeBSD.org>
nuclear@1:  * All rights reserved.
nuclear@1:  *
nuclear@1:  * Redistribution and use in source and binary forms, with or without
nuclear@1:  * modification, are permitted provided that the following conditions
nuclear@1:  * are met:
nuclear@1:  * 1. Redistributions of source code must retain the above copyright
nuclear@1:  *    notice, this list of conditions and the following disclaimer.
nuclear@1:  * 2. Redistributions in binary form must reproduce the above copyright
nuclear@1:  *    notice, this list of conditions and the following disclaimer in the
nuclear@1:  *    documentation and/or other materials provided with the distribution.
nuclear@1:  *
nuclear@1:  * ALTHOUGH THIS SOFTWARE IS MADE OF WIN AND SCIENCE, IT IS PROVIDED BY THE
nuclear@1:  * AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
nuclear@1:  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
nuclear@1:  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
nuclear@1:  * THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
nuclear@1:  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
nuclear@1:  * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
nuclear@1:  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
nuclear@1:  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
nuclear@1:  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
nuclear@1:  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
nuclear@1:  *
nuclear@1:  */
nuclear@1: 
nuclear@1: /**
nuclear@1:  * \file
nuclear@1:  *
nuclear@1:  * "SMF shell", command line utility.
nuclear@1:  */
nuclear@1: 
nuclear@1: #include <stdio.h>
nuclear@1: #include <stdlib.h>
nuclear@1: #include <unistd.h>
nuclear@1: #ifdef __MINGW32__
nuclear@1: #define EX_OK 0
nuclear@1: #define EX_USAGE 64
nuclear@1: #else /* ! __MINGW32__ */
nuclear@1: #include <sysexits.h>
nuclear@1: #endif /* ! __MINGW32__ */
nuclear@1: #include <string.h>
nuclear@1: #include <ctype.h>
nuclear@1: #include <assert.h>
nuclear@1: #include "smf.h"
nuclear@1: #include "fake_glib.h"
nuclear@1: 
nuclear@1: #ifdef HAVE_LIBREADLINE
nuclear@1: #include <readline/readline.h>
nuclear@1: #include <readline/history.h>
nuclear@1: #endif
nuclear@1: 
nuclear@1: smf_track_t *selected_track = NULL;
nuclear@1: smf_event_t *selected_event = NULL;
nuclear@1: smf_t *smf = NULL;
nuclear@1: char *last_file_name = NULL;
nuclear@1: 
nuclear@1: #define COMMAND_LENGTH 10
nuclear@1: 
nuclear@1: /*static void
nuclear@1: log_handler(const gchar *log_domain, GLogLevelFlags log_level, const gchar *message, gpointer notused)
nuclear@1: {
nuclear@1: 	if (strcmp(log_domain, "smfsh") == 0)
nuclear@1: 		fprintf(stderr, "%s\n", message);
nuclear@1: 	else
nuclear@1: 		fprintf(stderr, "%s: %s\n", log_domain, message);
nuclear@1: }*/
nuclear@1: 
nuclear@1: static int cmd_track(char *arg);
nuclear@1: 
nuclear@1: static int
nuclear@1: cmd_load(char *file_name)
nuclear@1: {
nuclear@1: 	char *decoded;
nuclear@1: 
nuclear@1: 	if (file_name == NULL) {
nuclear@1: 		if (last_file_name == NULL) {
nuclear@1: 			fg_critical("Please specify file name.");
nuclear@1: 			return (-1);
nuclear@1: 		}
nuclear@1: 
nuclear@1: 		file_name = strdup(last_file_name);
nuclear@1: 	} else {
nuclear@1: 		file_name = strdup(file_name);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	selected_track = NULL;
nuclear@1: 	selected_event = NULL;
nuclear@1: 
nuclear@1: 	if (smf != NULL) {
nuclear@1: 		smf_delete(smf);
nuclear@1: 		smf = NULL;
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	if (last_file_name != NULL)
nuclear@1: 		free(last_file_name);
nuclear@1: 	last_file_name = strdup(file_name);
nuclear@1: 
nuclear@1: 	smf = smf_load(file_name);
nuclear@1: 	if (smf == NULL) {
nuclear@1: 		fg_critical("Couldn't load '%s'.", file_name);
nuclear@1: 
nuclear@1: 		smf = smf_new();
nuclear@1: 		if (smf == NULL) {
nuclear@1: 			fg_critical("Cannot initialize smf_t.");
nuclear@1: 			return (-1);
nuclear@1: 		}
nuclear@1: 
nuclear@1: 		return (-2);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	fg_message("File '%s' loaded.", file_name);
nuclear@1: 	decoded = smf_decode(smf);
nuclear@1: 	fg_message("%s.", decoded);
nuclear@1: 	free(decoded);
nuclear@1: 
nuclear@1: 	cmd_track("1");
nuclear@1: 
nuclear@1: 	free(file_name);
nuclear@1: 
nuclear@1: 	return (0);
nuclear@1: }
nuclear@1: 
nuclear@1: static int
nuclear@1: cmd_save(char *file_name)
nuclear@1: {
nuclear@1: 	int ret;
nuclear@1: 
nuclear@1: 	if (file_name == NULL) {
nuclear@1: 		if (last_file_name == NULL) {
nuclear@1: 			fg_critical("Please specify file name.");
nuclear@1: 			return (-1);
nuclear@1: 		}
nuclear@1: 
nuclear@1: 		file_name = strdup(last_file_name);
nuclear@1: 	} else {
nuclear@1: 		file_name = strdup(file_name);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	if (last_file_name != NULL)
nuclear@1: 		free(last_file_name);
nuclear@1: 	last_file_name = strdup(file_name);
nuclear@1: 
nuclear@1: 	ret = smf_save(smf, file_name);
nuclear@1: 	if (ret) {
nuclear@1: 		fg_critical("Couldn't save '%s'", file_name);
nuclear@1: 		return (-1);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	fg_message("File '%s' saved.", file_name);
nuclear@1: 
nuclear@1: 	free(file_name);
nuclear@1: 
nuclear@1: 	return (0);
nuclear@1: }
nuclear@1: 
nuclear@1: static int
nuclear@1: cmd_ppqn(char *new_ppqn)
nuclear@1: {
nuclear@1: 	int tmp;
nuclear@1: 	char *end;
nuclear@1: 
nuclear@1: 	if (new_ppqn == NULL) {
nuclear@1: 		fg_message("Pulses Per Quarter Note (aka Division) is %d.", smf->ppqn);
nuclear@1: 	} else {
nuclear@1: 		tmp = strtol(new_ppqn, &end, 10);
nuclear@1: 		if (end - new_ppqn != strlen(new_ppqn)) {
nuclear@1: 			fg_critical("Invalid PPQN, garbage characters after the number.");
nuclear@1: 			return (-1);
nuclear@1: 		}
nuclear@1: 
nuclear@1: 		if (tmp <= 0) {
nuclear@1: 			fg_critical("Invalid PPQN, valid values are greater than zero.");
nuclear@1: 			return (-2);
nuclear@1: 		}
nuclear@1: 
nuclear@1: 		if (smf_set_ppqn(smf, tmp)) {
nuclear@1: 			fg_message("smf_set_ppqn failed.");
nuclear@1: 			return (-3);
nuclear@1: 		}
nuclear@1: 
nuclear@1: 		fg_message("Pulses Per Quarter Note changed to %d.", smf->ppqn);
nuclear@1: 	}
nuclear@1: 	
nuclear@1: 	return (0);
nuclear@1: }
nuclear@1: 
nuclear@1: static int
nuclear@1: cmd_format(char *new_format)
nuclear@1: {
nuclear@1: 	int tmp;
nuclear@1: 	char *end;
nuclear@1: 
nuclear@1: 	if (new_format == NULL) {
nuclear@1: 		fg_message("Format is %d.", smf->format);
nuclear@1: 	} else {
nuclear@1: 		tmp = strtol(new_format, &end, 10);
nuclear@1: 		if (end - new_format != strlen(new_format)) {
nuclear@1: 			fg_critical("Invalid format value, garbage characters after the number.");
nuclear@1: 			return (-1);
nuclear@1: 		}
nuclear@1: 
nuclear@1: 		if (tmp < 0 || tmp > 2) {
nuclear@1: 			fg_critical("Invalid format value, valid values are in range 0 - 2, inclusive.");
nuclear@1: 			return (-2);
nuclear@1: 		}
nuclear@1: 
nuclear@1: 		if (smf_set_format(smf, tmp)) {
nuclear@1: 			fg_critical("smf_set_format failed.");
nuclear@1: 			return (-3);
nuclear@1: 		}
nuclear@1: 
nuclear@1: 		fg_message("Forma changed to %d.", smf->format);
nuclear@1: 	}
nuclear@1: 	
nuclear@1: 	return (0);
nuclear@1: }
nuclear@1: 
nuclear@1: static int
nuclear@1: cmd_tracks(char *notused)
nuclear@1: {
nuclear@1: 	if (smf->number_of_tracks > 0)
nuclear@1: 		fg_message("There are %d tracks, numbered from 1 to %d.", smf->number_of_tracks, smf->number_of_tracks);
nuclear@1: 	else
nuclear@1: 		fg_message("There are no tracks.");
nuclear@1: 
nuclear@1: 	return (0);
nuclear@1: }
nuclear@1: 
nuclear@1: static int
nuclear@1: parse_track_number(const char *arg)
nuclear@1: {
nuclear@1: 	int num;
nuclear@1: 	char *end;
nuclear@1: 
nuclear@1: 	if (arg == NULL) {
nuclear@1: 		if (selected_track == NULL) {
nuclear@1: 			fg_message("No track currently selected and no track number given.");
nuclear@1: 			return (-1);
nuclear@1: 		} else {
nuclear@1: 			return (selected_track->track_number);
nuclear@1: 		}
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	num = strtol(arg, &end, 10);
nuclear@1: 	if (end - arg != strlen(arg)) {
nuclear@1: 		fg_critical("Invalid track number, garbage characters after the number.");
nuclear@1: 		return (-1);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	if (num < 1 || num > smf->number_of_tracks) {
nuclear@1: 		if (smf->number_of_tracks > 0) {
nuclear@1: 			fg_critical("Invalid track number specified; valid choices are 1 - %d.", smf->number_of_tracks);
nuclear@1: 		} else {
nuclear@1: 			fg_critical("There are no tracks.");
nuclear@1: 		}
nuclear@1: 
nuclear@1: 		return (-1);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	return (num);
nuclear@1: }
nuclear@1: 
nuclear@1: static int
nuclear@1: cmd_track(char *arg)
nuclear@1: {
nuclear@1: 	int num;
nuclear@1: 
nuclear@1: 	if (arg == NULL) {
nuclear@1: 		if (selected_track == NULL)
nuclear@1: 			fg_message("No track currently selected.");
nuclear@1: 		else
nuclear@1: 			fg_message("Currently selected is track number %d, containing %d events.",
nuclear@1: 				selected_track->track_number, selected_track->number_of_events);
nuclear@1: 	} else {
nuclear@1: 		if (smf->number_of_tracks == 0) {
nuclear@1: 			fg_message("There are no tracks.");
nuclear@1: 			return (-1);
nuclear@1: 		}
nuclear@1: 
nuclear@1: 		num = parse_track_number(arg);
nuclear@1: 		if (num < 0)
nuclear@1: 			return (-1);
nuclear@1: 
nuclear@1: 		selected_track = smf_get_track_by_number(smf, num);
nuclear@1: 		if (selected_track == NULL) {
nuclear@1: 			fg_critical("smf_get_track_by_number() failed, track not selected.");
nuclear@1: 			return (-3);
nuclear@1: 		}
nuclear@1: 
nuclear@1: 		selected_event = NULL;
nuclear@1: 
nuclear@1: 		fg_message("Track number %d selected; it contains %d events.",
nuclear@1: 				selected_track->track_number, selected_track->number_of_events);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	return (0);
nuclear@1: }
nuclear@1: 
nuclear@1: static int
nuclear@1: cmd_trackadd(char *notused)
nuclear@1: {
nuclear@1: 	selected_track = smf_track_new();
nuclear@1: 	if (selected_track == NULL) {
nuclear@1: 		fg_critical("smf_track_new() failed, track not created.");
nuclear@1: 		return (-1);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	smf_add_track(smf, selected_track);
nuclear@1: 
nuclear@1: 	selected_event = NULL;
nuclear@1: 
nuclear@1: 	fg_message("Created new track; track number %d selected.", selected_track->track_number);
nuclear@1: 
nuclear@1: 	return (0);
nuclear@1: }
nuclear@1: 
nuclear@1: static int
nuclear@1: cmd_trackrm(char *arg)
nuclear@1: {
nuclear@1: 	int num = parse_track_number(arg);
nuclear@1: 
nuclear@1: 	if (num < 0)
nuclear@1: 		return (-1);
nuclear@1: 
nuclear@1: 	if (selected_track != NULL && num == selected_track->track_number) {
nuclear@1: 		selected_track = NULL;
nuclear@1: 		selected_event = NULL;
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	smf_track_delete(smf_get_track_by_number(smf, num));
nuclear@1: 
nuclear@1: 	fg_message("Track %d removed.", num);
nuclear@1: 
nuclear@1: 	return (0);
nuclear@1: }
nuclear@1: 
nuclear@1: #define BUFFER_SIZE 1024
nuclear@1: 
nuclear@1: static int
nuclear@1: show_event(smf_event_t *event)
nuclear@1: {
nuclear@1: 	int off = 0, i;
nuclear@1: 	char *decoded, *type;
nuclear@1: 
nuclear@1: 	if (smf_event_is_metadata(event))
nuclear@1: 		type = "Metadata";
nuclear@1: 	else
nuclear@1: 		type = "Event";
nuclear@1: 	
nuclear@1: 	decoded = smf_event_decode(event);
nuclear@1: 
nuclear@1: 	if (decoded == NULL) {
nuclear@1: 		decoded = malloc(BUFFER_SIZE);
nuclear@1: 		if (decoded == NULL) {
nuclear@1: 			fg_critical("show_event: malloc failed.");
nuclear@1: 			return (-1);
nuclear@1: 		}
nuclear@1: 
nuclear@1: 		off += snprintf(decoded + off, BUFFER_SIZE - off, "Unknown event:");
nuclear@1: 
nuclear@1: 		for (i = 0; i < event->midi_buffer_length && i < 5; i++)
nuclear@1: 			off += snprintf(decoded + off, BUFFER_SIZE - off, " 0x%x", event->midi_buffer[i]);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	fg_message("%d: %s: %s, %f seconds, %d pulses, %d delta pulses", event->event_number, type, decoded,
nuclear@1: 	    event->time_seconds, event->time_pulses, event->delta_time_pulses);
nuclear@1: 
nuclear@1: 	free(decoded);
nuclear@1: 
nuclear@1: 	return (0);
nuclear@1: }
nuclear@1: 
nuclear@1: static int
nuclear@1: cmd_events(char *notused)
nuclear@1: {
nuclear@1: 	smf_event_t *event;
nuclear@1: 
nuclear@1: 	if (selected_track == NULL) {
nuclear@1: 		fg_critical("No track selected - please use 'track <number>' command first.");
nuclear@1: 		return (-1);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	if (selected_track->number_of_events == 0) {
nuclear@1: 		fg_message("Selected track is empty.");
nuclear@1: 		return (0);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	fg_message("List of events in track %d follows:", selected_track->track_number);
nuclear@1: 
nuclear@1: 	smf_rewind(smf);
nuclear@1: 
nuclear@1: 	while ((event = smf_track_get_next_event(selected_track)) != NULL)
nuclear@1: 		show_event(event);
nuclear@1: 
nuclear@1: 	smf_rewind(smf);
nuclear@1: 
nuclear@1: 	return (0);
nuclear@1: }
nuclear@1: 
nuclear@1: static int
nuclear@1: parse_event_number(const char *arg)
nuclear@1: {
nuclear@1: 	int num;
nuclear@1: 	char *end;
nuclear@1: 
nuclear@1: 	if (selected_track == NULL) {
nuclear@1: 		fg_critical("You need to select track first (using 'track <number>').");
nuclear@1: 		return (-1);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	if (arg == NULL) {
nuclear@1: 		if (selected_event == NULL) {
nuclear@1: 			fg_message("No event currently selected and no event number given.");
nuclear@1: 			return (-1);
nuclear@1: 		} else {
nuclear@1: 			return (selected_event->event_number);
nuclear@1: 		}
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	num = strtol(arg, &end, 10);
nuclear@1: 	if (end - arg != strlen(arg)) {
nuclear@1: 		fg_critical("Invalid event number, garbage characters after the number.");
nuclear@1: 		return (-1);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	if (num < 1 || num > selected_track->number_of_events) {
nuclear@1: 		if (selected_track->number_of_events > 0)
nuclear@1: 			fg_critical("Invalid event number specified; valid choices are 1 - %d.", selected_track->number_of_events);
nuclear@1: 		else
nuclear@1: 			fg_critical("There are no events in currently selected track.");
nuclear@1: 
nuclear@1: 		return (-1);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	return (num);
nuclear@1: }
nuclear@1: 
nuclear@1: static int
nuclear@1: cmd_event(char *arg)
nuclear@1: {
nuclear@1: 	int num;
nuclear@1: 
nuclear@1: 	if (arg == NULL) {
nuclear@1: 		if (selected_event == NULL) {
nuclear@1: 			fg_message("No event currently selected.");
nuclear@1: 		} else {
nuclear@1: 			fg_message("Currently selected is event %d, track %d.", selected_event->event_number, selected_track->track_number);
nuclear@1: 			show_event(selected_event);
nuclear@1: 		}
nuclear@1: 	} else {
nuclear@1: 		num = parse_event_number(arg);
nuclear@1: 		if (num < 0)
nuclear@1: 			return (-1);
nuclear@1: 
nuclear@1: 		selected_event = smf_track_get_event_by_number(selected_track, num);
nuclear@1: 		if (selected_event == NULL) {
nuclear@1: 			fg_critical("smf_get_event_by_number() failed, event not selected.");
nuclear@1: 			return (-2);
nuclear@1: 		}
nuclear@1: 
nuclear@1: 		fg_message("Event number %d selected.", selected_event->event_number);
nuclear@1: 		show_event(selected_event);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	return (0);
nuclear@1: }
nuclear@1: 
nuclear@1: static int
nuclear@1: decode_hex(char *str, unsigned char **buffer, int *length)
nuclear@1: {
nuclear@1: 	int i, value, midi_buffer_length;
nuclear@1: 	char buf[3];
nuclear@1: 	unsigned char *midi_buffer = NULL;
nuclear@1: 	char *end = NULL;
nuclear@1: 
nuclear@1: 	if ((strlen(str) % 2) != 0) {
nuclear@1: 		fg_critical("Hex value should have even number of characters, you know.");
nuclear@1: 		goto error;
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	midi_buffer_length = strlen(str) / 2;
nuclear@1: 	midi_buffer = malloc(midi_buffer_length);
nuclear@1: 	if (midi_buffer == NULL) {
nuclear@1: 		fg_critical("malloc() failed.");
nuclear@1: 		goto error;
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	for (i = 0; i < midi_buffer_length; i++) {
nuclear@1: 		buf[0] = str[i * 2];
nuclear@1: 		buf[1] = str[i * 2 + 1];
nuclear@1: 		buf[2] = '\0';
nuclear@1: 		value = strtoll(buf, &end, 16);
nuclear@1: 
nuclear@1: 		if (end - buf != 2) {
nuclear@1: 			fg_critical("Garbage characters detected after hex.");
nuclear@1: 			goto error;
nuclear@1: 		}
nuclear@1: 
nuclear@1: 		midi_buffer[i] = value;
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	*buffer = midi_buffer;
nuclear@1: 	*length = midi_buffer_length;
nuclear@1: 
nuclear@1: 	return (0);
nuclear@1: 
nuclear@1: error:
nuclear@1: 	if (midi_buffer != NULL)
nuclear@1: 		free(midi_buffer);
nuclear@1: 
nuclear@1: 	return (-1);
nuclear@1: }
nuclear@1: 
nuclear@1: static void
nuclear@1: eventadd_usage(void)
nuclear@1: {
nuclear@1: 	fg_message("Usage: add <time-in-seconds> <midi-in-hex> - for example, 'add 1 903C7F' will add");
nuclear@1: 	fg_message("Note On event, note C4, velocity 127, channel 1, one second from the start of song, channel 1.");
nuclear@1: }
nuclear@1: 
nuclear@1: static int
nuclear@1: cmd_eventadd(char *str)
nuclear@1: {
nuclear@1: 	int midi_buffer_length;
nuclear@1: 	double seconds;
nuclear@1: 	unsigned char *midi_buffer;
nuclear@1: 	char *time, *endtime;
nuclear@1: 
nuclear@1: 	if (selected_track == NULL) {
nuclear@1: 		fg_critical("Please select a track first, using 'track <number>' command.");
nuclear@1: 		return (-1);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	if (str == NULL) {
nuclear@1: 		eventadd_usage();
nuclear@1: 		return (-2);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	/* Extract the time.  Don't use strsep(3), it doesn't work on SunOS. */
nuclear@1: 	time = str;
nuclear@1: 	str = strchr(str, ' ');
nuclear@1: 	if (str != NULL) {
nuclear@1: 		*str = '\0';
nuclear@1: 		str++;
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	seconds = strtod(time, &endtime);
nuclear@1: 	if (endtime - time != strlen(time)) {
nuclear@1: 		fg_critical("Time is supposed to be a number, without trailing characters.");
nuclear@1: 		return (-3);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	/* Called with one parameter? */
nuclear@1: 	if (str == NULL) {
nuclear@1: 		eventadd_usage();
nuclear@1: 		return (-4);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	if (decode_hex(str, &midi_buffer, &midi_buffer_length)) {
nuclear@1: 		eventadd_usage();
nuclear@1: 		return (-5);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	selected_event = smf_event_new();
nuclear@1: 	if (selected_event == NULL) {
nuclear@1: 		fg_critical("smf_event_new() failed, event not created.");
nuclear@1: 		return (-6);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	selected_event->midi_buffer = midi_buffer;
nuclear@1: 	selected_event->midi_buffer_length = midi_buffer_length;
nuclear@1: 
nuclear@1: 	if (smf_event_is_valid(selected_event) == 0) {
nuclear@1: 		fg_critical("Event is invalid from the MIDI specification point of view, not created.");
nuclear@1: 		smf_event_delete(selected_event);
nuclear@1: 		selected_event = NULL;
nuclear@1: 		return (-7);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	smf_track_add_event_seconds(selected_track, selected_event, seconds);
nuclear@1: 
nuclear@1: 	fg_message("Event created.");
nuclear@1: 
nuclear@1: 	return (0);
nuclear@1: }
nuclear@1: 
nuclear@1: static int
nuclear@1: cmd_text(char *str)
nuclear@1: {
nuclear@1: 	double seconds, type;
nuclear@1: 	char *time, *typestr, *end;
nuclear@1: 
nuclear@1: 	if (selected_track == NULL) {
nuclear@1: 		fg_critical("Please select a track first, using 'track <number>' command.");
nuclear@1: 		return (-1);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	if (str == NULL) {
nuclear@1: 		fg_critical("Usage: text <time-in-seconds> <event-type> <text-itself>");
nuclear@1: 		return (-2);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	/* Extract the time.  Don't use strsep(3), it doesn't work on SunOS. */
nuclear@1: 	time = str;
nuclear@1: 	str = strchr(str, ' ');
nuclear@1: 	if (str != NULL) {
nuclear@1: 		*str = '\0';
nuclear@1: 		str++;
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	seconds = strtod(time, &end);
nuclear@1: 	if (end - time != strlen(time)) {
nuclear@1: 		fg_critical("Time is supposed to be a number, without trailing characters.");
nuclear@1: 		return (-3);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	/* Called with one parameter? */
nuclear@1: 	if (str == NULL) {
nuclear@1: 		fg_critical("Usage: text <time-in-seconds> <event-type> <text-itself>");
nuclear@1: 		return (-4);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	/* Extract the event type. */
nuclear@1: 	typestr = str;
nuclear@1: 	str = strchr(str, ' ');
nuclear@1: 	if (str != NULL) {
nuclear@1: 		*str = '\0';
nuclear@1: 		str++;
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	type = strtod(typestr, &end);
nuclear@1: 	if (end - typestr != strlen(typestr)) {
nuclear@1: 		fg_critical("Type is supposed to be a number, without trailing characters.");
nuclear@1: 		return (-4);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	if (type < 1 || type > 9) {
nuclear@1: 		fg_critical("Valid values for type are 1 - 9, inclusive.");
nuclear@1: 		return (-5);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	/* Called with one parameter? */
nuclear@1: 	if (str == NULL) {
nuclear@1: 		fg_critical("Usage: text <time-in-seconds> <event-type> <text-itself>");
nuclear@1: 		return (-4);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	selected_event = smf_event_new_textual(type, str);
nuclear@1: 	if (selected_event == NULL) {
nuclear@1: 		fg_critical("smf_event_new_textual() failed, event not created.");
nuclear@1: 		return (-6);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	assert(smf_event_is_valid(selected_event));
nuclear@1: 
nuclear@1: 	smf_track_add_event_seconds(selected_track, selected_event, seconds);
nuclear@1: 
nuclear@1: 	fg_message("Event created.");
nuclear@1: 
nuclear@1: 	return (0);
nuclear@1: }
nuclear@1: 
nuclear@1: 
nuclear@1: static int
nuclear@1: cmd_eventaddeot(char *time)
nuclear@1: {
nuclear@1: 	double seconds;
nuclear@1: 	char *end;
nuclear@1: 
nuclear@1: 	if (selected_track == NULL) {
nuclear@1: 		fg_critical("Please select a track first, using 'track <number>' command.");
nuclear@1: 		return (-1);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	if (time == NULL) {
nuclear@1: 		fg_critical("Please specify the time, in seconds.");
nuclear@1: 		return (-2);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	seconds = strtod(time, &end);
nuclear@1: 	if (end - time != strlen(time)) {
nuclear@1: 		fg_critical("Time is supposed to be a number, without trailing characters.");
nuclear@1: 		return (-3);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	if (smf_track_add_eot_seconds(selected_track, seconds)) {
nuclear@1: 		fg_critical("smf_track_add_eot() failed.");
nuclear@1: 		return (-4);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	fg_message("Event created.");
nuclear@1: 
nuclear@1: 	return (0);
nuclear@1: }
nuclear@1: 
nuclear@1: static int
nuclear@1: cmd_eventrm(char *number)
nuclear@1: {
nuclear@1: 	int num = parse_event_number(number);
nuclear@1: 
nuclear@1: 	if (num < 0)
nuclear@1: 		return (-1);
nuclear@1: 
nuclear@1: 	if (selected_event != NULL && num == selected_event->event_number)
nuclear@1: 		selected_event = NULL;
nuclear@1: 
nuclear@1: 	smf_event_delete(smf_track_get_event_by_number(selected_track, num));
nuclear@1: 
nuclear@1: 	fg_message("Event #%d removed.", num);
nuclear@1: 
nuclear@1: 	return (0);
nuclear@1: }
nuclear@1: 
nuclear@1: static int
nuclear@1: cmd_tempo(char *notused)
nuclear@1: {
nuclear@1: 	int i;
nuclear@1: 	smf_tempo_t *tempo;
nuclear@1: 
nuclear@1: 	for (i = 0;; i++) {
nuclear@1: 		tempo = smf_get_tempo_by_number(smf, i);
nuclear@1: 		if (tempo == NULL)
nuclear@1: 			break;
nuclear@1: 
nuclear@1: 		fg_message("Tempo #%d: Starts at %d pulses, %f seconds, setting %d microseconds per quarter note, %.2f BPM.",
nuclear@1: 		    i, tempo->time_pulses, tempo->time_seconds, tempo->microseconds_per_quarter_note,
nuclear@1: 		    60000000.0 / (double)tempo->microseconds_per_quarter_note);
nuclear@1: 		fg_message("Time signature: %d/%d, %d clocks per click, %d 32nd notes per quarter note.",
nuclear@1: 		    tempo->numerator, tempo->denominator, tempo->clocks_per_click, tempo->notes_per_note);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	return (0);
nuclear@1: }
nuclear@1: 
nuclear@1: static int
nuclear@1: cmd_length(char *notused)
nuclear@1: {
nuclear@1: 	fg_message("Length: %d pulses, %f seconds.", smf_get_length_pulses(smf), smf_get_length_seconds(smf));
nuclear@1: 
nuclear@1: 	return (0);
nuclear@1: }
nuclear@1: 
nuclear@1: static int
nuclear@1: cmd_version(char *notused)
nuclear@1: {
nuclear@1: 	fg_message("libsmf version %s.", smf_get_version());
nuclear@1: 
nuclear@1: 	return (0);
nuclear@1: }
nuclear@1: 
nuclear@1: static int
nuclear@1: cmd_exit(char *notused)
nuclear@1: {
nuclear@1: 	fg_debug("Good bye.");
nuclear@1: 	exit(0);
nuclear@1: }
nuclear@1: 
nuclear@1: static int cmd_help(char *notused);
nuclear@1: 
nuclear@1: static struct command_struct {
nuclear@1: 	char *name;
nuclear@1: 	int (*function)(char *command);
nuclear@1: 	char *help;
nuclear@1: } commands[] = {{"help", cmd_help, "Show this help."},
nuclear@1: 		{"?", cmd_help, NULL},
nuclear@1: 		{"load", cmd_load, "Load named file."},
nuclear@1: 		{"open", cmd_load},
nuclear@1: 		{"save", cmd_save, "Save to named file."},
nuclear@1: 		{"ppqn", cmd_ppqn, "Show ppqn (aka division), or set ppqn if used with parameter."},
nuclear@1: 		{"format", cmd_format, "Show format, or set format if used with parameter."},
nuclear@1: 		{"tracks", cmd_tracks, "Show number of tracks."},
nuclear@1: 		{"track", cmd_track, "Show number of currently selected track, or select a track."},
nuclear@1: 		{"trackadd", cmd_trackadd, "Add a track and select it."},
nuclear@1: 		{"trackrm", cmd_trackrm, "Remove currently selected track."},
nuclear@1: 		{"events", cmd_events, "Show events in the currently selected track."},
nuclear@1: 		{"event", cmd_event, "Show number of currently selected event, or select an event."},
nuclear@1: 		{"add", cmd_eventadd, "Add an event and select it."},
nuclear@1: 		{"text", cmd_text, "Add textual event and select it."},
nuclear@1: 		{"eventadd", cmd_eventadd, NULL},
nuclear@1: 		{"eot", cmd_eventaddeot, "Add an End Of Track event."},
nuclear@1: 		{"eventaddeot", cmd_eventaddeot, NULL},
nuclear@1: 		{"eventrm", cmd_eventrm, NULL},
nuclear@1: 		{"rm", cmd_eventrm, "Remove currently selected event."},
nuclear@1: 		{"tempo", cmd_tempo, "Show tempo map."},
nuclear@1: 		{"length", cmd_length, "Show length of the song."},
nuclear@1: 		{"version", cmd_version, "Show libsmf version."},
nuclear@1: 		{"exit", cmd_exit, "Exit to shell."},
nuclear@1: 		{"quit", cmd_exit, NULL},
nuclear@1: 		{"bye", cmd_exit, NULL},
nuclear@1: 		{NULL, NULL, NULL}};
nuclear@1: 
nuclear@1: static int
nuclear@1: cmd_help(char *notused)
nuclear@1: {
nuclear@1: 	int i, padding_length;
nuclear@1: 	char padding[COMMAND_LENGTH + 1];
nuclear@1: 	struct command_struct *tmp;
nuclear@1: 
nuclear@1: 	fg_message("Available commands:");
nuclear@1: 
nuclear@1: 	for (tmp = commands; tmp->name != NULL; tmp++) {
nuclear@1: 		/* Skip commands with no help string. */
nuclear@1: 		if (tmp->help == NULL)
nuclear@1: 			continue;
nuclear@1: 
nuclear@1: 		padding_length = COMMAND_LENGTH - strlen(tmp->name);
nuclear@1: 		assert(padding_length >= 0);
nuclear@1: 		for (i = 0; i < padding_length; i++)
nuclear@1: 			padding[i] = ' ';
nuclear@1: 		padding[i] = '\0';
nuclear@1: 
nuclear@1: 		fg_message("%s:%s%s", tmp->name, padding, tmp->help);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	return (0);
nuclear@1: }
nuclear@1: 
nuclear@1: /**
nuclear@1:  * Removes (in place) all whitespace characters before the first
nuclear@1:  * non-whitespace and all trailing whitespace characters.  Replaces
nuclear@1:  * more than one consecutive whitespace characters with one.
nuclear@1:  */
nuclear@1: static void
nuclear@1: strip_unneeded_whitespace(char *str, int len)
nuclear@1: {
nuclear@1: 	char *src, *dest;
nuclear@1: 	int skip_white = 1;
nuclear@1: 
nuclear@1: 	for (src = str, dest = str; src < dest + len; src++) {
nuclear@1: 		if (*src == '\n' || *src == '\0') {
nuclear@1: 			*dest = '\0';
nuclear@1: 			break;
nuclear@1: 		}
nuclear@1: 
nuclear@1: 		if (isspace(*src)) {
nuclear@1: 			if (skip_white)
nuclear@1: 				continue;
nuclear@1: 
nuclear@1: 			skip_white = 1;
nuclear@1: 		} else {
nuclear@1: 			skip_white = 0;
nuclear@1: 		}
nuclear@1: 
nuclear@1: 		*dest = *src;
nuclear@1: 		dest++;
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	/* Remove trailing whitespace. */
nuclear@1: 	len = strlen(dest);
nuclear@1: 	if (isspace(dest[len - 1]))
nuclear@1: 		dest[len - 1] = '\0';
nuclear@1: }
nuclear@1: 
nuclear@1: static char *
nuclear@1: read_command(void)
nuclear@1: {
nuclear@1: 	char *buf;
nuclear@1: 	int len;
nuclear@1: 
nuclear@1: #ifdef HAVE_LIBREADLINE
nuclear@1: 	buf = readline("smfsh> ");
nuclear@1: #else
nuclear@1: 	buf = malloc(1024);
nuclear@1: 	if (buf == NULL) {
nuclear@1: 		fg_critical("Malloc failed.");
nuclear@1: 		return (NULL);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	fprintf(stdout, "smfsh> ");
nuclear@1: 	fflush(stdout);
nuclear@1: 
nuclear@1: 	buf = fgets(buf, 1024, stdin);
nuclear@1: #endif
nuclear@1: 
nuclear@1: 	if (buf == NULL) {
nuclear@1: 		fprintf(stdout, "exit\n");
nuclear@1: 		return (strdup("exit"));
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	strip_unneeded_whitespace(buf, 1024);
nuclear@1: 
nuclear@1: 	len = strlen(buf);
nuclear@1: 
nuclear@1: 	if (len == 0)
nuclear@1: 		return (read_command());
nuclear@1: 
nuclear@1: #ifdef HAVE_LIBREADLINE
nuclear@1: 	add_history(buf);
nuclear@1: #endif
nuclear@1: 
nuclear@1: 	return (buf);
nuclear@1: }
nuclear@1: 
nuclear@1: static int
nuclear@1: execute_command(char *line)
nuclear@1: {
nuclear@1: 	char *command, *args;
nuclear@1: 	struct command_struct *tmp;
nuclear@1: 
nuclear@1: 	command = line;
nuclear@1: 	args = strchr(line, ' ');
nuclear@1: 	if (args != NULL) {
nuclear@1: 		*args = '\0';
nuclear@1: 		args++;
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	for (tmp = commands; tmp->name != NULL; tmp++) {
nuclear@1: 		if (strcmp(tmp->name, command) == 0)
nuclear@1: 			return ((tmp->function)(args));
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	fg_warning("No such command: '%s'.  Type 'help' to see available commands.", command);
nuclear@1: 
nuclear@1: 	return (-1);
nuclear@1: }
nuclear@1: 
nuclear@1: static void
nuclear@1: read_and_execute_command(void)
nuclear@1: {
nuclear@1: 	int ret;
nuclear@1: 	char *command_line, *command, *next_command;
nuclear@1: 
nuclear@1: 	command = command_line = read_command();
nuclear@1: 
nuclear@1: 	do {
nuclear@1: 		next_command = strchr(command, ';');
nuclear@1: 		if (next_command != NULL) {
nuclear@1: 			*next_command = '\0';
nuclear@1: 			next_command++;
nuclear@1: 		}
nuclear@1: 
nuclear@1: 		strip_unneeded_whitespace(command, 1024);
nuclear@1: 		if (strlen(command) > 0) {
nuclear@1: 			ret = execute_command(command);
nuclear@1: 			if (ret)
nuclear@1: 				fg_warning("Command finished with error.");
nuclear@1: 		}
nuclear@1: 
nuclear@1: 		command = next_command;
nuclear@1: 
nuclear@1: 	} while (command);
nuclear@1: 
nuclear@1: 	free(command_line);
nuclear@1: }
nuclear@1: 
nuclear@1: #ifdef HAVE_LIBREADLINE
nuclear@1: 
nuclear@1: static char *
nuclear@1: smfsh_command_generator(const char *text, int state)
nuclear@1: {
nuclear@1: 	static struct command_struct *command = commands;
nuclear@1: 	char *tmp;
nuclear@1: 
nuclear@1: 	if (state == 0)
nuclear@1: 		command = commands;
nuclear@1: 
nuclear@1: 	while (command->name != NULL) {
nuclear@1: 		tmp = command->name;
nuclear@1: 		command++;
nuclear@1: 
nuclear@1: 		if (strncmp(tmp, text, strlen(text)) == 0)
nuclear@1: 			return (strdup(tmp));
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	return (NULL);
nuclear@1: }
nuclear@1: 
nuclear@1: static char **
nuclear@1: smfsh_completion(const char *text, int start, int end)
nuclear@1: {
nuclear@1: 	int i;
nuclear@1: 
nuclear@1: 	/* Return NULL if "text" is not the first word in the input line. */
nuclear@1: 	if (start != 0) {
nuclear@1: 		for (i = 0; i < start; i++) {
nuclear@1: 			if (!isspace(rl_line_buffer[i]))
nuclear@1: 				return (NULL);
nuclear@1: 		}
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	return (rl_completion_matches(text, smfsh_command_generator));
nuclear@1: }
nuclear@1: 
nuclear@1: #endif
nuclear@1: 
nuclear@1: static void
nuclear@1: usage(void)
nuclear@1: {
nuclear@1: 	fprintf(stderr, "usage: smfsh [-V | file]\n");
nuclear@1: 
nuclear@1: 	exit(EX_USAGE);
nuclear@1: }
nuclear@1: 
nuclear@1: int
nuclear@1: main(int argc, char *argv[])
nuclear@1: {
nuclear@1: 	int ch;
nuclear@1: 
nuclear@1: 	while ((ch = getopt(argc, argv, "V")) != -1) {
nuclear@1: 		switch (ch) {
nuclear@1: 		case 'V':
nuclear@1: 			cmd_version(NULL);
nuclear@1: 			exit(EX_OK);
nuclear@1: 
nuclear@1: 		case '?':
nuclear@1: 		default:
nuclear@1: 			usage();
nuclear@1: 		}
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	if (argc > 2)
nuclear@1: 		usage();
nuclear@1: 
nuclear@1: 	/*g_log_set_default_handler(log_handler, NULL);*/
nuclear@1: 
nuclear@1: 	smf = smf_new();
nuclear@1: 	if (smf == NULL) {
nuclear@1: 		fg_critical("Cannot initialize smf_t.");
nuclear@1: 		return (-1);
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	if (argc == 2)
nuclear@1: 		cmd_load(argv[1]);
nuclear@1: 	else
nuclear@1: 		cmd_trackadd(NULL);
nuclear@1: 
nuclear@1: #ifdef HAVE_LIBREADLINE
nuclear@1: 	rl_readline_name = "smfsh";
nuclear@1: 	rl_attempted_completion_function = smfsh_completion;
nuclear@1: #endif
nuclear@1: 
nuclear@1: 	for (;;)
nuclear@1: 		read_and_execute_command();
nuclear@1: 
nuclear@1: 	return (0);
nuclear@1: }
nuclear@1: