summaryrefslogtreecommitdiffstats
path: root/libtdemid/gusout.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'libtdemid/gusout.cpp')
-rw-r--r--libtdemid/gusout.cpp691
1 files changed, 691 insertions, 0 deletions
diff --git a/libtdemid/gusout.cpp b/libtdemid/gusout.cpp
new file mode 100644
index 000000000..96c9fb915
--- /dev/null
+++ b/libtdemid/gusout.cpp
@@ -0,0 +1,691 @@
+/**************************************************************************
+
+ gusout.cpp - 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/libtdemid.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 */