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692 lines
16 KiB
692 lines
16 KiB
/**************************************************************************
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gusout.cpp - class GUSOut which implements support for Gravis
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Ultrasound cards through a /dev/sequencer device
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This file is part of LibKMid 0.9.5
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Copyright (C) 1998,99,2000 Antonio Larrosa Jimenez
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LibKMid's homepage : http://www.arrakis.es/~rlarrosa/libtdemid.html
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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Send comments and bug fixes to Antonio Larrosa <larrosa@kde.org>
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***************************************************************************/
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#include "gusout.h"
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#include "sndcard.h"
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#include "midispec.h"
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#include "gusvoices.h"
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#include <sys/stat.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <sys/ioctl.h>
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#include <errno.h>
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#include <string.h>
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#include <sys/param.h>
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#include <stdlib.h>
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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SEQ_USE_EXTBUF();
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#ifdef HAVE_OSS_SUPPORT
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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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int get_dint(unsigned char *p)
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{
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unsigned int v=0;
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for (int i=0;i<4;i++)
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{
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v |= (p[i] << (i*8));
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}
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return (int)v;
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}
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unsigned short get_word(unsigned char *p)
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{
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unsigned short v=0;
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for (int i=0;i<2;i++)
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v |= (*p++ << (i*8));
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return (short)v;
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}
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#endif
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GUSOut::GUSOut(int d,int total)
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{
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seqfd = -1;
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devicetype=KMID_GUS;
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device= d;
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_ok=1;
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use8bit=0;
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nvoices=total;
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vm=new VoiceManager(nvoices);
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}
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GUSOut::~GUSOut()
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{
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closeDev();
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delete vm;
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if (delete_GUS_patches_directory)
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{
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free((char *)GUS_patches_directory);
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delete_GUS_patches_directory = 0;
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GUS_patches_directory="/etc";
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}
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}
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void GUSOut::openDev (int sqfd)
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{
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_ok=1;
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seqfd = sqfd;
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//vm->clearLists();
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if (seqfd==-1)
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{
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printfdebug("ERROR: Could not open /dev/sequencer\n");
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return;
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}
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#ifdef HAVE_OSS_SUPPORT
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//seqbuf_clean();
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//ioctl(seqfd,SNDCTL_SEQ_RESET);
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//ioctl(seqfd,SNDCTL_SEQ_PANIC);
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if (ioctl(seqfd, SNDCTL_SEQ_RESETSAMPLES, &device)==-1)
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{
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printfdebug("Error reseting gus samples. Please report\n");
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};
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use8bit=0;
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totalmemory = device;
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ioctl(seqfd, SNDCTL_SYNTH_MEMAVL, &totalmemory);
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freememory = device;
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ioctl(seqfd, SNDCTL_SYNTH_MEMAVL, &freememory);
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#endif
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}
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void GUSOut::closeDev (void)
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{
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if (!ok()) return;
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vm->clearLists();
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//if (seqfd>=0)
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// close(seqfd);
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seqfd=-1;
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}
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void GUSOut::initDev (void)
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{
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#ifdef HAVE_OSS_SUPPORT
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int chn;
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if (!ok()) return;
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uchar gm_reset[5]={0x7e, 0x7f, 0x09, 0x01, 0xf7};
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sysex(gm_reset, sizeof(gm_reset));
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for (chn=0;chn<16;chn++)
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{
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chnmute[chn]=0;
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chnPatchChange(chn,0);
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// chnPressure(chn,127);
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chnPitchBender(chn, 0x00, 0x40);
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chnController(chn, CTL_MAIN_VOLUME,127);
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chnController(chn, CTL_EXT_EFF_DEPTH, 0);
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chnController(chn, CTL_CHORUS_DEPTH, 0);
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chnController(chn, 0x4a, 127);
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}
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for (int i = 0; i < nvoices; i++)
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{
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SEQ_CONTROL(device, i, SEQ_VOLMODE, VOL_METHOD_LINEAR);
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SEQ_STOP_NOTE(device, i, vm->note(i), 64);
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}
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#endif
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}
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int GUSOut::patch(int p)
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{
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if (patchloaded[p]==1) return p;
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printfdebug("Not loaded %d!\n",p);
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p=0;
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while ((p<256)&&(patchloaded[p]==0)) p++;
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return p;
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}
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void GUSOut::noteOn (uchar chn, uchar note, uchar vel)
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{
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if (vel==0)
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{
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noteOff(chn,note,vel);
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}
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else
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{
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if (chn==PERCUSSION_CHANNEL)
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{
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if (patchloaded[note+128]==0) return;
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else
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if (patchloaded[chnpatch[chn]]==0) return;
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};
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int v=vm->allocateVoice(chn,note);
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int p;
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if (chn==PERCUSSION_CHANNEL)
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SEQ_SET_PATCH(device,v ,p=patch(note+128))
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else
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SEQ_SET_PATCH(device,v ,p=map->patch(chn,chnpatch[chn]));
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SEQ_BENDER(device, v, chnbender[chn]);
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SEQ_START_NOTE(device, v, note, vel);
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// SEQ_CONTROL(device, v, CTL_MAIN_VOLUME, chncontroller[chn][CTL_MAIN_VOLUME]);
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SEQ_CHN_PRESSURE(device, v , chnpressure[chn]);
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}
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printfdebug("Note ON >\t chn : %d\tnote : %d\tvel: %d\n",chn,note,vel);
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}
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void GUSOut::noteOff (uchar chn, uchar note, uchar vel)
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{
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int i;
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vm->initSearch();
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while ((i=vm->search(chn,note))!=-1)
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{
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SEQ_STOP_NOTE(device, i, note, vel);
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vm->deallocateVoice(i);
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}
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#ifdef GUSOUTDEBUG
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printf("Note OFF >\t chn : %d\tnote : %d\tvel: %d\n",chn,note,vel);
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#endif
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}
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void GUSOut::keyPressure (uchar chn, uchar note, uchar vel)
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{
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int i;
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vm->initSearch();
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while ((i=vm->search(chn,note))!=-1)
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SEQ_KEY_PRESSURE(device, i, note,vel);
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}
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void GUSOut::chnPatchChange (uchar chn, uchar patch)
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{
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if (chn==PERCUSSION_CHANNEL) return;
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int i;
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vm->initSearch();
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while ((i=vm->search(chn))!=-1)
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SEQ_SET_PATCH(device,i,map->patch(chn,patch));
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chnpatch[chn]=patch;
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}
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void GUSOut::chnPressure (uchar /*chn*/, uchar /*vel*/)
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{
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/* int i;
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vm->initSearch();
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while ((i=vm->search(chn))!=-1)
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SEQ_CHN_PRESSURE(device, i , vel);
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chnpressure[chn]=vel;
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*/
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}
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void GUSOut::chnPitchBender(uchar chn,uchar lsb, uchar msb)
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{
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chnbender[chn]=((int)msb<<7) | (lsb & 0x7F);
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int i;
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vm->initSearch();
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while ((i=vm->search(chn))!=-1)
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SEQ_BENDER(device, i, chnbender[chn]);
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}
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void GUSOut::chnController (uchar chn, uchar ctl, uchar v)
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{
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if ((ctl==11)||(ctl==7))
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{
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v=(v*volumepercentage)/100;
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if (v>127) v=127;
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};
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int i;
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vm->initSearch();
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while ((i=vm->search(chn))!=-1)
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SEQ_CONTROL(device, i, ctl, v);
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chncontroller[chn][ctl]=v;
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}
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void GUSOut::sysex(uchar *, ulong )
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{
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}
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void GUSOut::setGUSPatchesDirectory(const char *dir)
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{
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if ((dir==NULL)||(dir[0]==0)) return;
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if (delete_GUS_patches_directory)
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free((char *)GUS_patches_directory);
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GUS_patches_directory = strdup(dir);
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delete_GUS_patches_directory=1;
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}
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const char *GUSOut::patchName(int pgm)
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{
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return GUS_voice_names[pgm];
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}
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int GUSOut::loadPatch(int pgm)
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{
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#ifdef HAVE_OSS_SUPPORT
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struct pat_header header;
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struct sample_header sample;
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if (patchloaded[pgm]==1)
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{
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#ifdef GUSOUTDEBUG
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printf("Trying to reload a patch. This should never happen, please report.\n");
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#endif
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return 0;
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}
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if ((patchName(pgm)==NULL)||((patchName(pgm))[0]==0))
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{
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#ifdef GUSOUTDEBUG
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printf("Couldn't guess patch name for patch number %d\n",pgm);
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#endif
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return -1;
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}
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char *s=new char[strlen(GUS_patches_directory)+strlen(patchName(pgm))+10];
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if (s==NULL) return -1;
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sprintf(s,"%s/%s.pat",GUS_patches_directory,patchName(pgm));
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#ifdef GUSOUTDEBUG
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printf("Loading patch : %s\n",s);
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#endif
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struct patch_info *patch=NULL;
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struct stat info;
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if (stat(s, &info)==-1)
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{
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#ifdef GUSOUTDEBUG
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printf("File %s doesn't exist\n",s);
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#endif
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return -1;
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}
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FILE *fh=fopen(s,"rb");
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if (fh==NULL)
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{
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#ifdef GUSOUTDEBUG
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printf("Couldn't open patch %s\n",s);
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#endif
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return -1;
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}
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unsigned char tmp[256];
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if (fread(tmp,1,0xef,fh)!=0xef)
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{
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fclose(fh);
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#ifdef GUSOUTDEBUG
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printf("Short file ! \n");
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#endif
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return -1;
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}
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memcpy ((char *) &header, tmp, sizeof (header));
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if (strncmp(header.magic,"GF1PATCH110",12)!=0)
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{
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#ifdef GUSOUTDEBUG
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printf("File %s is corrupted or it isn't a patch file\n",s);
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#endif
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return -1;
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}
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if (strncmp(header.version,"ID#000002",10)!=0)
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{
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#ifdef GUSOUTDEBUG
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printf("File %s's version is not supported\n",s);
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#endif
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return -1;
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}
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unsigned short nWaves= *(unsigned short *)&tmp[85];
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#ifdef GUSOUTDEBUG
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unsigned short masterVolume= *(unsigned short *)&tmp[87];
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printf("nWaves: %d\n",nWaves);
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printf("masterVolume : %d\n",masterVolume);
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#endif
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unsigned short i;
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int offset=0xef;
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for (i=0;i<nWaves;i++)
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{
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fseek(fh,offset,SEEK_SET);
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if (fread(tmp,1,sizeof(sample),fh) != sizeof(sample))
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{
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fclose(fh);
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#ifdef GUSOUTDEBUG
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printf("Short file\n");
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#endif
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return -1;
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}
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memcpy ((char *) &sample, tmp, sizeof (sample));
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sample.fractions = (char)tmp[7];
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sample.len = get_dint(&tmp[8]);
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sample.loop_start = get_dint(&tmp[12]);
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sample.loop_end = get_dint(&tmp[16]);
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sample.base_freq = get_word(&tmp[20]);
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sample.low_note = get_dint(&tmp[22]);
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sample.high_note = get_dint(&tmp[26]);
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sample.base_note = get_dint(&tmp[30]);
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sample.detune = (short)get_word(&tmp[34]);
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sample.panning = (unsigned char) tmp[36];
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memcpy (sample.envelope_rate, &tmp[37], 6);
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memcpy (sample.envelope_offset, &tmp[43], 6);
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sample.tremolo_sweep = (unsigned char) tmp[49];
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sample.tremolo_rate = (unsigned char) tmp[50];
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sample.tremolo_depth = (unsigned char) tmp[51];
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sample.vibrato_sweep = (unsigned char) tmp[52];
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sample.vibrato_rate = (unsigned char) tmp[53];
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sample.vibrato_depth = (unsigned char) tmp[54];
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sample.modes = (unsigned char) tmp[55];
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sample.scale_frequency = (short)get_word(&tmp[56]);
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sample.scale_factor = get_word(&tmp[58]);
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offset = offset + 96;
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patch = (struct patch_info *) malloc(sizeof (*patch) + sample.len);
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if (patch == NULL)
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{
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#ifdef GUSOUTDEBUG
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printf("Not enough memory\n");
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#endif
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return -1;
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}
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patch->key = GUS_PATCH;
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patch->device_no = device;
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patch->instr_no = pgm;
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patch->mode = sample.modes | WAVE_TREMOLO | 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 (fseek (fh, offset, 0) == -1)
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{
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fclose(fh);
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return -1;
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}
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if ((long)fread (patch->data, 1,sample.len,fh) != sample.len)
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{
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#ifdef GUSOUTDEBUG
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printf ("Short file\n");
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#endif
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return -1;
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}
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SEQ_WRPATCH (patch, sizeof (*patch) + sample.len);
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offset = offset + sample.len;
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}
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patchloaded[pgm]=1;
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fclose(fh);
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free(patch); // Shouldn't this 'free' be within the 'for' loop ?
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delete s;
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freememory = device;
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ioctl(seqfd, SNDCTL_SYNTH_MEMAVL, &freememory);
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#endif
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return 0;
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}
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void GUSOut::setPatchesToUse(int *patchesused)
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{
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#ifdef HAVE_OSS_SUPPORT
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int k;
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for (k=0;k<256;k++) patchloaded[k]=0;
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int patchesordered[256]; //This holds the pgm used ordered by a method which
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// put first the patches more oftenly used, and then the least
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// In example, if a song only uses a piano and a splash cymbal,
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// This is set to : 0,188,-1,-1,-1,-1 ...
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patchesLoadingOrder(patchesused,patchesordered);
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// If above line doesn't work, perhaps you could try this ? :
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// for (int j=0;j<256;j++) patchesordered[j]=patchesused[j];
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#ifdef GUSOUTDEBUG
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printf("Patches used : \n");
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for (k=0;k<256;k++)
|
|
{
|
|
if (patchesused[k]!=-1) printf("%d,",patchesused[k]);
|
|
}
|
|
printf("\n Patches used, sorted :\n");
|
|
for (k=0;k<256;k++)
|
|
{
|
|
if (patchesordered[k]!=-1) printf("%d,",patchesordered[k]);
|
|
}
|
|
#endif
|
|
|
|
int i=0;
|
|
while (patchesordered[i]!=-1)
|
|
{
|
|
#ifdef GUSOUTDEBUG
|
|
printf("Load Patch : %d\n",patchesordered[i]);
|
|
#endif
|
|
loadPatch(patchesordered[i]);
|
|
i++;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
int compare_decreasing(const void *a,const void *b)
|
|
{
|
|
struct instr_gm
|
|
{
|
|
int used;
|
|
int pgm;
|
|
};
|
|
instr_gm *ai=(instr_gm *)a;
|
|
instr_gm *bi=(instr_gm *)b;
|
|
return ai->used<bi->used;
|
|
}
|
|
|
|
|
|
void GUSOut::patchesLoadingOrder(int *patchesused,int *patchesordered)
|
|
{
|
|
struct instr_gm
|
|
{
|
|
int used;
|
|
int pgm;
|
|
};
|
|
|
|
instr_gm tempmelody[128];
|
|
instr_gm tempdrums[128];
|
|
int i,j;
|
|
for (i=0,j=128;i<128;i++,j++)
|
|
{
|
|
tempmelody[i].used=patchesused[i];
|
|
tempmelody[i].pgm=i;
|
|
tempdrums[i].used=patchesused[j];
|
|
tempdrums[i].pgm=j;
|
|
}
|
|
/* SORT */ // Decreasing order (first most used patch, then less used patch)
|
|
qsort(&tempmelody[0],128,sizeof(instr_gm),compare_decreasing);
|
|
qsort(&tempdrums[0],128,sizeof(instr_gm),compare_decreasing);
|
|
|
|
/* Once they are sorted, the result is put on patchesordered in the following
|
|
* way : If tempmelody is : M0 M1 M2 M3 ... M127 and tempdrums is :
|
|
* D0 D1 D2 D3 ... D127, the result is :
|
|
* M0 D0 M1 M2 D1 M3 M4 D2 M5 M6 D3 ...
|
|
* P0 P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 ...
|
|
*/
|
|
|
|
#ifdef GUSOUTDEBUG
|
|
for (int k=0;k<128;k++)
|
|
{
|
|
printf("%d - %d\n",tempmelody[k].used,tempmelody[k].pgm);
|
|
}
|
|
for (int k=0;k<128;k++)
|
|
{
|
|
printf("%d : %d\n",tempdrums[k].used,tempdrums[k].pgm);
|
|
}
|
|
#endif
|
|
|
|
i=0;
|
|
int totalmelody=0;
|
|
while ((i<128)&&(tempmelody[i].used!=0))
|
|
{
|
|
totalmelody++;
|
|
i++;
|
|
}
|
|
i=0;
|
|
int totaldrums=0;
|
|
while ((i<128)&&(tempdrums[i].used!=0))
|
|
{
|
|
totaldrums++;
|
|
i++;
|
|
}
|
|
#ifdef GUSOUTDEBUG
|
|
printf("Totalmelody : %d,totaldrums : %d\n",totalmelody,totaldrums);
|
|
#endif
|
|
int tgt=0;
|
|
|
|
int tm=totalmelody;
|
|
int td=totaldrums;
|
|
int cm,cd;
|
|
cm=cd=0;
|
|
if ((tm!=0)&&(td!=0))
|
|
{
|
|
patchesordered[0]=tempmelody[0].pgm;
|
|
patchesordered[1]=tempdrums[0].pgm;
|
|
tm--;td--;
|
|
cm++;cd++;
|
|
tgt+=2;
|
|
while ((tm>0)&&(td>0))
|
|
{
|
|
if (((tgt-1)%3)==0)
|
|
{
|
|
patchesordered[tgt]=tempdrums[cd].pgm;
|
|
cd++;
|
|
td--;
|
|
}
|
|
else
|
|
{
|
|
patchesordered[tgt]=tempmelody[cm].pgm;
|
|
cm++;
|
|
tm--;
|
|
}
|
|
tgt++;
|
|
}
|
|
}
|
|
while (tm>0)
|
|
{
|
|
patchesordered[tgt]=tempmelody[cm].pgm;
|
|
tgt++;
|
|
cm++;
|
|
tm--;
|
|
}
|
|
while (td>0)
|
|
{
|
|
patchesordered[tgt]=tempdrums[cd].pgm;
|
|
tgt++;
|
|
cd++;
|
|
td--;
|
|
}
|
|
|
|
// Now we put as not used (-1) the rest of the array
|
|
while (tgt<256)
|
|
{
|
|
patchesordered[tgt]=-1;
|
|
tgt++;
|
|
}
|
|
}
|
|
|
|
//char *GUSOut::GUS_patches_directory="/mnt/dosc/gravis/patches";
|
|
const char *GUSOut::GUS_patches_directory="/usr/share/ultrasnd";
|
|
|
|
int GUSOut::delete_GUS_patches_directory = 0;
|
|
/* No, this doesn't delete any file :-) it's just for internal use */
|