353 lines
8.4 KiB
C
353 lines
8.4 KiB
C
/*
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* $Id$
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*/
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/*
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* patutil.c - A sample program which loads patches to the Gravis
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* Ultrasound
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*
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*/
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#ifndef PATCH_PATH
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#define PATCH_PATH "/D/ultrasnd/midi"
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#endif
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#include <stdio.h>
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#include <machine/ultrasound.h>
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#include <stdlib.h>
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#include <strings.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include "gmidi.h"
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struct pat_header
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{
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char magic[12];
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char version[10];
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char description[60];
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unsigned char instruments;
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char voices;
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char channels;
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unsigned short nr_waveforms;
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unsigned short master_volume;
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unsigned long data_size;
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};
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struct sample_header
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{
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char name[7];
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unsigned char fractions;
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long len;
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long loop_start;
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long loop_end;
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unsigned short base_freq;
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long low_note;
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long high_note;
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long base_note;
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short detune;
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unsigned char panning;
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unsigned char envelope_rate[6];
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unsigned char envelope_offset[6];
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unsigned char tremolo_sweep;
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unsigned char tremolo_rate;
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unsigned char tremolo_depth;
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unsigned char vibrato_sweep;
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unsigned char vibrato_rate;
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unsigned char vibrato_depth;
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char modes;
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short scale_frequency;
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unsigned short scale_factor;
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};
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#define GUS_DEV gus_dev
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SEQ_DEFINEBUF (2048);
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int seqfd;
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int gus_dev = -1;
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struct patch_info *patch;
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/*
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* The function seqbuf_dump() must always be provided
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*/
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void
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seqbuf_dump ()
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{
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if (_seqbufptr)
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if (write (seqfd, _seqbuf, _seqbufptr) == -1)
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{
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perror ("write /dev/sequencer");
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exit (-1);
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}
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_seqbufptr = 0;
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}
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int
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main (int argc, char *argv[])
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{
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int i, n, patfd, pgm, print_only = 0;
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struct synth_info info;
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struct pat_header header;
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struct sample_header sample;
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char buf[256];
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char name[256];
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long offset;
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if ((seqfd = open ("/dev/sequencer", O_WRONLY, 0)) == -1)
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{
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perror ("/dev/sequencer");
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exit (-1);
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}
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if (ioctl (seqfd, SNDCTL_SEQ_NRSYNTHS, &n) == -1)
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{
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perror ("/dev/sequencer");
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exit (-1);
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}
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for (i = 0; i < n; i++)
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{
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info.device = i;
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if (ioctl (seqfd, SNDCTL_SYNTH_INFO, &info) == -1)
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{
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perror ("/dev/sequencer");
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exit (-1);
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}
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if (info.synth_type == SYNTH_TYPE_SAMPLE
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&& info.synth_subtype == SAMPLE_TYPE_GUS)
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gus_dev = i;
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}
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if (gus_dev == -1)
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{
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fprintf (stderr, "Error: Gravis Ultrasound not detected\n");
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exit (-1);
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}
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if (argc == 2)
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{
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if (!strcmp (argv[1], "reset"))
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if (ioctl (seqfd, SNDCTL_SEQ_RESETSAMPLES, &gus_dev) == -1)
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perror ("Sample reset");
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exit (0);
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}
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if (argc != 3)
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{
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fprintf (stderr, "Usage: %s pgm# patchfile\n", argv[0]);
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fprintf (stderr, " or : %s pgm# GM\n", argv[0]);
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fprintf (stderr, " or : %s pgm# -l\n", argv[0]);
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fprintf (stderr, " or : %s reset\n", argv[0]);
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fprintf (stderr, " or : %s -l patchfile\n", argv[0]);
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exit (-1);
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}
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pgm = atoi (argv[1]);
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strcpy (name, argv[2]);
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if (strcmp (name, "GM") == 0 || strcmp(name, "-l")==0)
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{
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if (strcmp (name, "-l") == 0) print_only = 1;
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if (pgm < 0 || pgm > 127)
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{
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fprintf (stderr, "pgm# must be between 0 and 127\n");
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exit (-1);
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}
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sprintf (name, PATCH_PATH "/%s.pat", patch_names[pgm]);
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if (!print_only)
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fprintf (stderr, "Loading program %d from %s\n", pgm, name);
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}
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else if (strcmp (argv[1], "-l") == 0)
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print_only = 1;
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if ((patfd = open (name, O_RDONLY, 0)) == -1)
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{
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perror (name);
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exit (-1);
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}
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if (read (patfd, buf, 0xef) != 0xef)
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{
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fprintf (stderr, "%s: Short file\n", name);
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exit (-1);
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}
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memcpy ((char *) &header, buf, sizeof (header));
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if (strncmp (header.magic, "GF1PATCH110", 12))
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{
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fprintf (stderr, "%s: Not a patch file\n", name);
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exit (-1);
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}
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if (strncmp (header.version, "ID#000002", 10))
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{
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fprintf (stderr, "%s: Incompatible patch file version\n", name);
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exit (-1);
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}
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header.nr_waveforms = *(unsigned short *) &buf[85];
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header.master_volume = *(unsigned short *) &buf[87];
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if (print_only)
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{
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printf ("Patch file: %s contains %d samples\n\n", name, header.nr_waveforms);
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printf ("Master volume: %d\n", header.master_volume);
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}
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offset = 0xef;
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for (i = 0; i < header.nr_waveforms; i++)
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{
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if (lseek (patfd, offset, 0) == -1)
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{
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perror (name);
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exit (-1);
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}
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if (read (patfd, &buf, sizeof (sample)) != sizeof (sample))
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{
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fprintf (stderr, "%s: Short file\n", name);
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exit (-1);
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}
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memcpy ((char *) &sample, buf, sizeof (sample));
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/*
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* Since some fields of the patch record are not 32bit aligned, we must
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* handle them specially.
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*/
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sample.low_note = *(long *) &buf[22];
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sample.high_note = *(long *) &buf[26];
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sample.base_note = *(long *) &buf[30];
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sample.detune = *(short *) &buf[34];
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sample.panning = (unsigned char) buf[36];
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memcpy (sample.envelope_rate, &buf[37], 6);
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memcpy (sample.envelope_offset, &buf[43], 6);
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sample.tremolo_sweep = (unsigned char) buf[49];
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sample.tremolo_rate = (unsigned char) buf[50];
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sample.tremolo_depth = (unsigned char) buf[51];
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sample.vibrato_sweep = (unsigned char) buf[52];
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sample.vibrato_rate = (unsigned char) buf[53];
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sample.vibrato_depth = (unsigned char) buf[54];
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sample.modes = (unsigned char) buf[55];
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sample.scale_frequency = *(short *) &buf[56];
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sample.scale_factor = *(unsigned short *) &buf[58];
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if (print_only)
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{
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printf("\nSample: %03d / %s\n", i, sample.name);
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printf ("Len: %d, Loop start: %d, Loop end: %d\n", sample.len, sample.loop_start, sample.loop_end);
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printf ("Flags: ");
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if (sample.modes & WAVE_16_BITS)
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printf ("16 bit ");
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if (sample.modes & WAVE_UNSIGNED)
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printf ("unsigned ");
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if (sample.modes & WAVE_LOOP_BACK)
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printf("reverse ");
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if (sample.modes & WAVE_BIDIR_LOOP)
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printf("bidir ");
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if (sample.modes & WAVE_LOOPING)
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printf ("looping "); else printf("one_shot" );
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if (sample.modes & WAVE_SUSTAIN_ON)
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printf ("sustain ");
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if (sample.modes & WAVE_ENVELOPES)
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printf ("enveloped ");
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printf ("\n");
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if (sample.modes & WAVE_ENVELOPES)
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{
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int i;
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printf ("Envelope info: ");
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for (i = 0; i < 6; i++)
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{
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printf ("%d/%d ", sample.envelope_rate[i],
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sample.envelope_offset[i]);
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}
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printf ("\n");
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}
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printf("Tremolo: sweep=%d, rate=%d, depth=%d\n",
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sample.tremolo_sweep,
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sample.tremolo_rate,
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sample.tremolo_depth);
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printf("Vibrato: sweep=%d, rate=%d, depth=%d\n",
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sample.vibrato_sweep,
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sample.vibrato_rate,
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sample.vibrato_depth);
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}
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offset = offset + 96;
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patch = (struct patch_info *) malloc (sizeof (*patch) + sample.len);
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patch->key = GUS_PATCH;
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patch->device_no = GUS_DEV;
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patch->instr_no = pgm;
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patch->mode = sample.modes | WAVE_TREMOLO |
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WAVE_VIBRATO | WAVE_SCALE;
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patch->len = sample.len;
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patch->loop_start = sample.loop_start;
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patch->loop_end = sample.loop_end;
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patch->base_note = sample.base_note;
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patch->high_note = sample.high_note;
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patch->low_note = sample.low_note;
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patch->base_freq = sample.base_freq;
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patch->detuning = sample.detune;
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patch->panning = (sample.panning - 7) * 16;
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memcpy (patch->env_rate, sample.envelope_rate, 6);
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memcpy (patch->env_offset, sample.envelope_offset, 6);
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patch->tremolo_sweep = sample.tremolo_sweep;
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patch->tremolo_rate = sample.tremolo_rate;
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patch->tremolo_depth = sample.tremolo_depth;
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patch->vibrato_sweep = sample.vibrato_sweep;
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patch->vibrato_rate = sample.vibrato_rate;
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patch->vibrato_depth = sample.vibrato_depth;
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patch->scale_frequency = sample.scale_frequency;
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patch->scale_factor = sample.scale_factor;
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patch->volume = header.master_volume;
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if (lseek (patfd, offset, 0) == -1)
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{
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perror (name);
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exit (-1);
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}
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if (!print_only)
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{
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if (read (patfd, patch->data, sample.len) != sample.len)
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{
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fprintf (stderr, "%s: Short file\n", name);
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exit (-1);
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}
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SEQ_WRPATCH (patch, sizeof (*patch) + sample.len);
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}
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offset = offset + sample.len;
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}
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exit (0);
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}
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