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Diffstat (limited to 'libkmid/libkmid.cc')
| -rw-r--r-- | libkmid/libkmid.cc | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/libkmid/libkmid.cc b/libkmid/libkmid.cc new file mode 100644 index 000000000..59e96ad0f --- /dev/null +++ b/libkmid/libkmid.cc @@ -0,0 +1,263 @@ +/************************************************************************** + + libkmid.cc - class KMidSimpleAPI that makes it easy to use libkmid + and a C wrapper. + This file is part of LibKMid 0.9.5 + Copyright (C) 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 "libkmid.h" +#include <stdlib.h> +#include <unistd.h> +#include <signal.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <sys/shm.h> + +#include "deviceman.h" +#include "player.h" +#include "midimapper.h" + +struct kMidData kMid; + +int KMidSimpleAPI::kMidInit(void) +{ + kMid.midi = new DeviceManager(); + if ( kMid.midi == 0L ) return 1; + kMid.midi->initManager(); + if (!kMid.midi->ok()) return 1; + + kMid.pctlsmID=shmget(getpid(),sizeof(PlayerController),0600 | IPC_CREAT); + if (kMid.pctlsmID==-1) return 1; + kMid.pctl=(PlayerController *)shmat(kMid.pctlsmID,NULL,0); + if (kMid.pctl==NULL) return 1; + + kMid.player=new MidiPlayer(kMid.midi,kMid.pctl); + if ( kMid.player == 0L ) + { + delete kMid.midi; + return 1; + } + + kMid.player->setParseSong(false); + + kMid.pctl->message=0; + kMid.pctl->gm=1; + kMid.pctl->error=0; + kMid.pctl->ratioTempo=1.0; + kMid.pctl->tempo=500000; + kMid.pctl->volumepercentage=100; + for (int i=0;i<16;i++) + { + kMid.pctl->forcepgm[i]=0; + kMid.pctl->pgm[i]=0; + } + + return 0; +} + +int KMidSimpleAPI::kMidLoad(const char *filename) +{ + if (kMidDevices()==0) return 0; + return kMid.player->loadSong(filename); +} + +int KMidSimpleAPI::kMidPlay(int loop) +{ + if (kMidDevices()==0) return 4; + if (!kMid.player->isSongLoaded()) return 1; + if (kMid.pctl->playing==1) return 2; + if (kMid.midi->checkInit()==-1) return 3; + kMid.pctl->message=0; + kMid.pctl->playing=0; + kMid.pctl->finished=0; + kMid.pctl->error=0; + kMid.pctl->SPEVplayed=0; + kMid.pctl->SPEVprocessed=0; + kMid.pctl->millisecsPlayed=0; + if ((kMid.pid=fork())==0) + { + if (loop) + { + while (1) + { + kMid.player->play(); + if (kMid.pctl->error) return 5; + kMid.pctl->message=0; + kMid.pctl->playing=0; + kMid.pctl->finished=0; + kMid.pctl->error=0; + kMid.pctl->SPEVplayed=0; + kMid.pctl->SPEVprocessed=0; + kMid.pctl->millisecsPlayed=0; + } + + } else { + kMid.player->play(); + if (kMid.pctl->error) return 5; + } + _exit(0); + } else return 4; + return 0; +} + +int KMidSimpleAPI::kMidStop(void) +{ + if (kMidDevices()==0) return 4; + if (kMid.pctl->playing==0) return 1; + if (kMid.pid!=0) + { + kill(kMid.pid,SIGTERM); + waitpid(kMid.pid, NULL, 0); + kMid.pid=0; + } else return 2; + + kMid.pctl->playing=0; + return 0; +} + +void KMidSimpleAPI::kMidDestruct(void) +{ + delete kMid.midi; + kMid.midi=0L; + delete kMid.player; + kMid.player=0L; + delete kMid.map; + shmdt((char *)kMid.pctl); + shmctl(kMid.pctlsmID, IPC_RMID, 0L); +} + +int KMidSimpleAPI::kMidIsPlaying(void) +{ + return kMid.pctl->playing; +} + +int KMidSimpleAPI::kMidDevices(void) +{ + return kMid.midi->midiPorts()+kMid.midi->synthDevices(); +} + +const char * KMidSimpleAPI::kMidName(int i) +{ + return kMid.midi->name(i); +} + +const char * KMidSimpleAPI::kMidType(int i) +{ + return kMid.midi->type(i); +} + +void KMidSimpleAPI::kMidSetDevice(int i) +{ + kMid.midi->setDefaultDevice(i); +} + +void KMidSimpleAPI::kMidSetMidiMapper(const char *mapfilename) +{ + if (kMidDevices()==0) return; + kMid.map=new MidiMapper(mapfilename); + if ((kMid.map->ok() == 0L)||(!kMid.map->ok())) return; + kMid.midi->setMidiMap(kMid.map); +} + +const char *KMidSimpleAPI::kMidVersion(void) +{ + return "0.9.5"; +} + +const char *KMidSimpleAPI::kMidCopyright(void) +{ + return "LibKMid 0.9.5 (C)1997-2000 Antonio Larrosa Jimenez <larrosa@kde.org>.Malaga(es)"; +} + +/* * * * * * + + Under this line (------) there's only a C wrapper for the KMidSimpleAPI class + +* * * * * */ + + +int kMidInit(void) +{ + return KMidSimpleAPI::kMidInit(); +} + +int kMidLoad(const char *filename) +{ + return KMidSimpleAPI::kMidLoad(filename); +} + +int kMidPlay(void) +{ + return KMidSimpleAPI::kMidPlay(); +} + +int kMidStop(void) +{ + return KMidSimpleAPI::kMidStop(); +} + +void kMidDestruct(void) +{ + KMidSimpleAPI::kMidDestruct(); +} + +int kMidIsPlaying(void) +{ + return KMidSimpleAPI::kMidIsPlaying(); +} + +int kMidDevices(void) +{ + return KMidSimpleAPI::kMidDevices(); +} + +const char *kMidName(int i) +{ + return KMidSimpleAPI::kMidName(i); +} + +const char *kMidType(int i) +{ + return KMidSimpleAPI::kMidType(i); +} + +void kMidSetDevice(int i) +{ + KMidSimpleAPI::kMidSetDevice(i); +} + +void kMidSetMidiMapper(const char *mapfilename) +{ + KMidSimpleAPI::kMidSetMidiMapper(mapfilename); +} + +const char *kMidVersion(void) +{ + return KMidSimpleAPI::kMidVersion(); +} + +const char *kMidCopyright(void) +{ + return KMidSimpleAPI::kMidCopyright(); +} + |