gusout.cc
/**************************************************************************
gusout.cc - class GUSOut which implements support for Gravis
Ultrasound cards through a /dev/sequencer device
This file is part of LibKMid 0.9.5
Copyright (C) 1998,99,2000 Antonio Larrosa Jimenez
LibKMid's homepage : http://www.arrakis.es/~rlarrosa/libkmid.html
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
Send comments and bug fixes to Antonio Larrosa <larrosa@kde.org>
***************************************************************************/
#include "gusout.h"
#include "sndcard.h"
#include "midispec.h"
#include "gusvoices.h"
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
#include <sys/ioctl.h>
#include <errno.h>
#include <string.h>
#include <sys/param.h>
#include <stdlib.h>
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
SEQ_USE_EXTBUF();
#ifdef HAVE_OSS_SUPPORT
struct pat_header
{
char magic[12];
char version[10];
char description[60];
unsigned char instruments;
char voices;
char channels;
unsigned short nr_waveforms;
unsigned short master_volume;
unsigned long data_size;
};
struct sample_header
{
char name[7];
unsigned char fractions;
long len;
long loop_start;
long loop_end;
unsigned short base_freq;
long low_note;
long high_note;
long base_note;
short detune;
unsigned char panning;
unsigned char envelope_rate[6];
unsigned char envelope_offset[6];
unsigned char tremolo_sweep;
unsigned char tremolo_rate;
unsigned char tremolo_depth;
unsigned char vibrato_sweep;
unsigned char vibrato_rate;
unsigned char vibrato_depth;
char modes;
short scale_frequency;
unsigned short scale_factor;
};
int get_dint(unsigned char *p)
{
unsigned int v=0;
for (int i=0;i<4;i++)
{
v |= (p[i] << (i*8));
}
return (int)v;
}
unsigned short get_word(unsigned char *p)
{
unsigned short v=0;
for (int i=0;i<2;i++)
v |= (*p++ << (i*8));
return (short)v;
}
#endif
GUSOut::GUSOut(int d,int total)
{
seqfd = -1;
devicetype=KMID_GUS;
device= d;
_ok=1;
use8bit=0;
nvoices=total;
vm=new VoiceManager(nvoices);
}
GUSOut::~GUSOut()
{
closeDev();
delete vm;
if (delete_GUS_patches_directory)
{
free((char *)GUS_patches_directory);
delete_GUS_patches_directory = 0;
GUS_patches_directory="/etc";
}
}
void GUSOut::openDev (int sqfd)
{
_ok=1;
seqfd = sqfd;
//vm->clearLists();
if (seqfd==-1)
{
printfdebug("ERROR: Could not open /dev/sequencer\n");
return;
}
#ifdef HAVE_OSS_SUPPORT
//seqbuf_clean();
//ioctl(seqfd,SNDCTL_SEQ_RESET);
//ioctl(seqfd,SNDCTL_SEQ_PANIC);
if (ioctl(seqfd, SNDCTL_SEQ_RESETSAMPLES, &device)==-1)
{
printfdebug("Error reseting gus samples. Please report\n");
};
use8bit=0;
totalmemory = device;
ioctl(seqfd, SNDCTL_SYNTH_MEMAVL, &totalmemory);
freememory = device;
ioctl(seqfd, SNDCTL_SYNTH_MEMAVL, &freememory);
#endif
}
void GUSOut::closeDev (void)
{
if (!ok()) return;
vm->clearLists();
//if (seqfd>=0)
// close(seqfd);
seqfd=-1;
}
void GUSOut::initDev (void)
{
#ifdef HAVE_OSS_SUPPORT
int chn;
if (!ok()) return;
uchar gm_reset[5]={0x7e, 0x7f, 0x09, 0x01, 0xf7};
sysex(gm_reset, sizeof(gm_reset));
for (chn=0;chn<16;chn++)
{
chnmute[chn]=0;
chnPatchChange(chn,0);
// chnPressure(chn,127);
chnPitchBender(chn, 0x00, 0x40);
chnController(chn, CTL_MAIN_VOLUME,127);
chnController(chn, CTL_EXT_EFF_DEPTH, 0);
chnController(chn, CTL_CHORUS_DEPTH, 0);
chnController(chn, 0x4a, 127);
}
for (int i = 0; i < nvoices; i++)
{
SEQ_CONTROL(device, i, SEQ_VOLMODE, VOL_METHOD_LINEAR);
SEQ_STOP_NOTE(device, i, vm->note(i), 64);
}
#endif
}
int GUSOut::patch(int p)
{
if (patchloaded[p]==1) return p;
printfdebug("Not loaded %d!\n",p);
p=0;
while ((p<256)&&(patchloaded[p]==0)) p++;
return p;
}
void GUSOut::noteOn (uchar chn, uchar note, uchar vel)
{
if (vel==0)
{
noteOff(chn,note,vel);
}
else
{
if (chn==PERCUSSION_CHANNEL)
{
if (patchloaded[note+128]==0) return;
else
if (patchloaded[chnpatch[chn]]==0) return;
};
int v=vm->allocateVoice(chn,note);
int p;
if (chn==PERCUSSION_CHANNEL)
SEQ_SET_PATCH(device,v ,p=patch(note+128))
else
SEQ_SET_PATCH(device,v ,p=map->patch(chn,chnpatch[chn]));
SEQ_BENDER(device, v, chnbender[chn]);
SEQ_START_NOTE(device, v, note, vel);
// SEQ_CONTROL(device, v, CTL_MAIN_VOLUME, chncontroller[chn][CTL_MAIN_VOLUME]);
SEQ_CHN_PRESSURE(device, v , chnpressure[chn]);
}
printfdebug("Note ON >\t chn : %d\tnote : %d\tvel: %d\n",chn,note,vel);
}
void GUSOut::noteOff (uchar chn, uchar note, uchar vel)
{
int i;
vm->initSearch();
while ((i=vm->search(chn,note))!=-1)
{
SEQ_STOP_NOTE(device, i, note, vel);
vm->deallocateVoice(i);
}
#ifdef GUSOUTDEBUG
printf("Note OFF >\t chn : %d\tnote : %d\tvel: %d\n",chn,note,vel);
#endif
}
void GUSOut::keyPressure (uchar chn, uchar note, uchar vel)
{
int i;
vm->initSearch();
while ((i=vm->search(chn,note))!=-1)
SEQ_KEY_PRESSURE(device, i, note,vel);
}
void GUSOut::chnPatchChange (uchar chn, uchar patch)
{
if (chn==PERCUSSION_CHANNEL) return;
int i;
vm->initSearch();
while ((i=vm->search(chn))!=-1)
SEQ_SET_PATCH(device,i,map->patch(chn,patch));
chnpatch[chn]=patch;
}
void GUSOut::chnPressure (uchar /*chn*/, uchar /*vel*/)
{
/* int i;
vm->initSearch();
while ((i=vm->search(chn))!=-1)
SEQ_CHN_PRESSURE(device, i , vel);
chnpressure[chn]=vel;
*/
}
void GUSOut::chnPitchBender(uchar chn,uchar lsb, uchar msb)
{
chnbender[chn]=((int)msb<<7) | (lsb & 0x7F);
int i;
vm->initSearch();
while ((i=vm->search(chn))!=-1)
SEQ_BENDER(device, i, chnbender[chn]);
}
void GUSOut::chnController (uchar chn, uchar ctl, uchar v)
{
if ((ctl==11)||(ctl==7))
{
v=(v*volumepercentage)/100;
if (v>127) v=127;
};
int i;
vm->initSearch();
while ((i=vm->search(chn))!=-1)
SEQ_CONTROL(device, i, ctl, v);
chncontroller[chn][ctl]=v;
}
void GUSOut::sysex(uchar *, ulong )
{
}
void GUSOut::setGUSPatchesDirectory(const char *dir)
{
if ((dir==NULL)||(dir[0]==0)) return;
if (delete_GUS_patches_directory)
free((char *)GUS_patches_directory);
GUS_patches_directory = strdup(dir);
delete_GUS_patches_directory=1;
}
const char *GUSOut::patchName(int pgm)
{
return GUS_voice_names[pgm];
}
int GUSOut::loadPatch(int pgm)
{
#ifdef HAVE_OSS_SUPPORT
struct pat_header header;
struct sample_header sample;
if (patchloaded[pgm]==1)
{
#ifdef GUSOUTDEBUG
printf("Trying to reload a patch. This should never happen, please report.\n");
#endif
return 0;
}
if ((patchName(pgm)==NULL)||((patchName(pgm))[0]==0))
{
#ifdef GUSOUTDEBUG
printf("Couldn't guess patch name for patch number %d\n",pgm);
#endif
return -1;
}
char *s=new char[strlen(GUS_patches_directory)+strlen(patchName(pgm))+10];
if (s==NULL) return -1;
sprintf(s,"%s/%s.pat",GUS_patches_directory,patchName(pgm));
#ifdef GUSOUTDEBUG
printf("Loading patch : %s\n",s);
#endif
struct patch_info *patch=NULL;
struct stat info;
if (stat(s, &info)==-1)
{
#ifdef GUSOUTDEBUG
printf("File %s doesn't exist\n",s);
#endif
return -1;
}
FILE *fh=fopen(s,"rb");
if (fh==NULL)
{
#ifdef GUSOUTDEBUG
printf("Couldn't open patch %s\n",s);
#endif
return -1;
}
unsigned char tmp[256];
if (fread(tmp,1,0xef,fh)!=0xef)
{
fclose(fh);
#ifdef GUSOUTDEBUG
printf("Short file ! \n");
#endif
return -1;
}
memcpy ((char *) &header, tmp, sizeof (header));
if (strncmp(header.magic,"GF1PATCH110",12)!=0)
{
#ifdef GUSOUTDEBUG
printf("File %s is corrupted or it isn't a patch file\n",s);
#endif
return -1;
}
if (strncmp(header.version,"ID#000002",10)!=0)
{
#ifdef GUSOUTDEBUG
printf("File %s's version is not supported\n",s);
#endif
return -1;
}
unsigned short nWaves= *(unsigned short *)&tmp[85];
#ifdef GUSOUTDEBUG
unsigned short masterVolume= *(unsigned short *)&tmp[87];
printf("nWaves: %d\n",nWaves);
printf("masterVolume : %d\n",masterVolume);
#endif
unsigned short i;
int offset=0xef;
for (i=0;i<nWaves;i++)
{
fseek(fh,offset,SEEK_SET);
if (fread(tmp,1,sizeof(sample),fh) != sizeof(sample))
{
fclose(fh);
#ifdef GUSOUTDEBUG
printf("Short file\n");
#endif
return -1;
}
memcpy ((char *) &sample, tmp, sizeof (sample));
sample.fractions = (char)tmp[7];
sample.len = get_dint(&tmp[8]);
sample.loop_start = get_dint(&tmp[12]);
sample.loop_end = get_dint(&tmp[16]);
sample.base_freq = get_word(&tmp[20]);
sample.low_note = get_dint(&tmp[22]);
sample.high_note = get_dint(&tmp[26]);
sample.base_note = get_dint(&tmp[30]);
sample.detune = (short)get_word(&tmp[34]);
sample.panning = (unsigned char) tmp[36];
memcpy (sample.envelope_rate, &tmp[37], 6);
memcpy (sample.envelope_offset, &tmp[43], 6);
sample.tremolo_sweep = (unsigned char) tmp[49];
sample.tremolo_rate = (unsigned char) tmp[50];
sample.tremolo_depth = (unsigned char) tmp[51];
sample.vibrato_sweep = (unsigned char) tmp[52];
sample.vibrato_rate = (unsigned char) tmp[53];
sample.vibrato_depth = (unsigned char) tmp[54];
sample.modes = (unsigned char) tmp[55];
sample.scale_frequency = (short)get_word(&tmp[56]);
sample.scale_factor = get_word(&tmp[58]);
offset = offset + 96;
patch = (struct patch_info *) malloc(sizeof (*patch) + sample.len);
if (patch == NULL)
{
#ifdef GUSOUTDEBUG
printf("Not enough memory\n");
#endif
return -1;
}
patch->key = GUS_PATCH;
patch->device_no = device;
patch->instr_no = pgm;
patch->mode = sample.modes | WAVE_TREMOLO | WAVE_VIBRATO | WAVE_SCALE;
patch->len = sample.len;
patch->loop_start = sample.loop_start;
patch->loop_end = sample.loop_end;
patch->base_note = sample.base_note;
patch->high_note = sample.high_note;
patch->low_note = sample.low_note;
patch->base_freq = sample.base_freq;
patch->detuning = sample.detune;
patch->panning = (sample.panning - 7) * 16;
memcpy (patch->env_rate, sample.envelope_rate, 6);
memcpy (patch->env_offset, sample.envelope_offset, 6);
patch->tremolo_sweep = sample.tremolo_sweep;
patch->tremolo_rate = sample.tremolo_rate;
patch->tremolo_depth = sample.tremolo_depth;
patch->vibrato_sweep = sample.vibrato_sweep;
patch->vibrato_rate = sample.vibrato_rate;
patch->vibrato_depth = sample.vibrato_depth;
patch->scale_frequency = sample.scale_frequency;
patch->scale_factor = sample.scale_factor;
patch->volume = header.master_volume;
if (fseek (fh, offset, 0) == -1)
{
fclose(fh);
return -1;
}
if ((long)fread (patch->data, 1,sample.len,fh) != sample.len)
{
#ifdef GUSOUTDEBUG
printf ("Short file\n");
#endif
return -1;
}
SEQ_WRPATCH (patch, sizeof (*patch) + sample.len);
offset = offset + sample.len;
}
patchloaded[pgm]=1;
fclose(fh);
free(patch); // Shouldn't this 'free' be within the 'for' loop ?
delete s;
freememory = device;
ioctl(seqfd, SNDCTL_SYNTH_MEMAVL, &freememory);
#endif
return 0;
}
void GUSOut::setPatchesToUse(int *patchesused)
{
#ifdef HAVE_OSS_SUPPORT
int k;
for (k=0;k<256;k++) patchloaded[k]=0;
int patchesordered[256]; //This holds the pgm used ordered by a method which
// put first the patches more oftenly used, and then the least
// In example, if a song only uses a piano and a splash cymbal,
// This is set to : 0,188,-1,-1,-1,-1 ...
patchesLoadingOrder(patchesused,patchesordered);
// If above line doesn't work, perhaps you could try this ? :
// for (int j=0;j<256;j++) patchesordered[j]=patchesused[j];
#ifdef GUSOUTDEBUG
printf("Patches used : \n");
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 */
GUSOut::setPatchesToUse
void setPatchesToUse(int *patchesused)
See DeviceManager::setPatchesToUse() .
Definition: gusout.cc:525
GUSOut::openDev
virtual void openDev(int sqfd)
See MidiOut::openDev()
Definition: gusout.cc:137
GUSOut::patch
int patch(int p)
Returns p if the patch with number p has been correctly loaded.
Definition: gusout.cc:208
GUSOut::noteOn
virtual void noteOn(uchar chn, uchar note, uchar vel)
See MidiOut::noteOn()
Definition: gusout.cc:217
GUSOut::chnPressure
virtual void chnPressure(uchar chn, uchar vel)
See MidiOut::chnPressure()
Definition: gusout.cc:281
KStdAccel::description
QString description(StdAccel id) KDE_DEPRECATED
GUSOut::loadPatch
int loadPatch(int pgm)
Loads a single patch on the synthesizer memory.
Definition: gusout.cc:338
GUSOut::~GUSOut
~GUSOut()
Destructor.
Definition: gusout.cc:124
GUSOut::chnPatchChange
virtual void chnPatchChange(uchar chn, uchar patch)
See MidiOut::chnPatchChange()
Definition: gusout.cc:270
GUSOut::GUSOut
GUSOut(int d=0, int total=12)
Constructor.
Definition: gusout.cc:112
GUSOut::closeDev
virtual void closeDev(void)
See MidiOut::closeDev()
Definition: gusout.cc:169
GUSOut::initDev
virtual void initDev(void)
See MidiOut::initDev()
Definition: gusout.cc:178
GUSOut::sysex
virtual void sysex(uchar *data, ulong size)
It's an empty function, as GUS synths don't support System Exclusive messages.
Definition: gusout.cc:317
MidiMapper::patch
uchar patch(uchar chn, uchar pgm)
Returns the patch which pgm used on channel chn should be mapped to.
Definition: midimapper.cc:431
GUSOut::chnController
virtual void chnController(uchar chn, uchar ctl, uchar v)
See MidiOut::chnController()
Definition: gusout.cc:301
GUSOut::chnPitchBender
virtual void chnPitchBender(uchar chn, uchar lsb, uchar msb)
See MidiOut::chnPitchBender()
Definition: gusout.cc:291
MidiOut::ok
int ok(void)
Returns true if everything's ok and false if there has been any problem.
Definition: midiout.h:231
GUSOut::setGUSPatchesDirectory
static void setGUSPatchesDirectory(const char *dir)
Sets the directory where the GUS patches are stored, that is, where the acpiano.pat, ...
Definition: gusout.cc:322
KDE::version
unsigned int version()
GUSOut::keyPressure
virtual void keyPressure(uchar chn, uchar note, uchar vel)
See MidiOut::keyPressure()
Definition: gusout.cc:262
GUSOut::noteOff
virtual void noteOff(uchar chn, uchar note, uchar vel)
See MidiOut::noteOff()
Definition: gusout.cc:247
KStdAccel::name
QString name(StdAccel id)

KDE Home | KDE Accessibility Home | Description of Access Keys