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Diffstat (limited to 'drumgizmo/input/midifile/midifile.cc')
| -rw-r--r-- | drumgizmo/input/midifile/midifile.cc | 271 |
1 files changed, 0 insertions, 271 deletions
diff --git a/drumgizmo/input/midifile/midifile.cc b/drumgizmo/input/midifile/midifile.cc deleted file mode 100644 index d73d382..0000000 --- a/drumgizmo/input/midifile/midifile.cc +++ /dev/null @@ -1,271 +0,0 @@ -/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ -/*************************************************************************** - * dummy.cc - * - * Sat Apr 30 21:11:54 CEST 2011 - * Copyright 2011 Bent Bisballe Nyeng - * deva@aasimon.org - ****************************************************************************/ - -/* - * This file is part of DrumGizmo. - * - * DrumGizmo is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * DrumGizmo 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with DrumGizmo; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - */ -#include <stdlib.h> - -#include <string> -#include <event.h> - -#include <smf.h> - -#include <midimapper.h> -#include <midimapparser.h> - -#define NOTE_ON 0x90 - -class MidiFile { -public: - MidiFile(); - ~MidiFile() {} - - bool init(int instruments, char *inames[]); - - void setParm(std::string parm, std::string value); - - bool start(); - void stop(); - - void pre(); - event_t *run(size_t pos, size_t len, size_t *nevents); - void post(); - -private: - smf_t *smf; - smf_event_t *cur_event; - - MidiMapper mmap; - - // Parameters - std::string filename; - float speed; - int track; - std::string midimapfile; - bool loop; - double offset; -}; - -MidiFile::MidiFile() -{ - cur_event = NULL; - smf = NULL; - - speed = 1.0; - track = -1; // -1 is OMNI/all tracks - loop = false; - offset = 0; -} - -bool MidiFile::init(int instruments, char *inames[]) -{ - if(filename == "") { - fprintf(stderr, "Missing midifile argument 'file'\n"); - return false; - } - - if(midimapfile == "") { - fprintf(stderr, "Missing midimapfile argument 'midimap'.\n"); - return false; - } - - smf = smf_load(filename.c_str()); - - if(!smf) { - fprintf(stderr, "Could not open midifile '%s'.\n", filename.c_str()); - return false; - } - - MidiMapParser p(midimapfile); - if(p.parse()) { - fprintf(stderr, "Could not parse midimapfile '%s'.\n", midimapfile.c_str()); - return false; - } - mmap.midimap = p.midimap; - - for(int i = 0; i < instruments; i++) { - mmap.instrmap[inames[i]] = i; - } - - return true; -} - -void MidiFile::setParm(std::string parm, std::string value) -{ - if(parm == "file") filename = value; - if(parm == "speed") speed = atof(value.c_str()); - if(parm == "track") track = atoi(value.c_str()); - if(parm == "midimap") midimapfile = value; - if(parm == "loop") loop = true; -} - -bool MidiFile::start() -{ - return true; -} - -void MidiFile::stop() -{ -} - -void MidiFile::pre() -{ -} - -event_t *MidiFile::run(size_t pos, size_t len, size_t *nevents) -{ - event_t *evs = NULL; - size_t nevs = 0; - - double cur_max_time = (double)(pos + len) / (44100.0 / speed); - cur_max_time -= offset; - // double cur_min_time = (double)(pos) / (44100.0 / speed); - - if(!cur_event) cur_event = smf_get_next_event(smf); - - while(cur_event && cur_event->time_seconds < cur_max_time) { - if(!smf_event_is_metadata(cur_event)) { - if( (cur_event->midi_buffer_length == 3) && - ((cur_event->midi_buffer[0] & NOTE_ON) == NOTE_ON) && - (track == -1 || cur_event->track_number == track) && - cur_event->midi_buffer[2] > 0) { - - if(evs == NULL) evs = (event_t *)malloc(sizeof(event_t) * 1000); - - int key = cur_event->midi_buffer[1]; - int velocity = cur_event->midi_buffer[2]; - - evs[nevs].type = TYPE_ONSET; - size_t evpos = cur_event->time_seconds * (44100.0 / speed); - evs[nevs].offset = evpos - pos; - - int i = mmap.lookup(key); - if(i != -1) { - evs[nevs].instrument = i; - evs[nevs].velocity = velocity / 127.0; - - nevs++; - if(nevs > 999) { - fprintf(stderr, "PANIC!\n"); - break; - } - } - } - } - - cur_event = smf_get_next_event(smf); - } - - if(!cur_event) { - if(loop) { - smf_rewind(smf); - offset += cur_max_time; - } else { - if(evs == NULL) evs = (event_t *)malloc(sizeof(event_t) * 1000); - evs[nevs].type = TYPE_STOP; - evs[nevs].offset = len - 1; - nevs++; - } - } - - *nevents = nevs; - - return evs; -} - -void MidiFile::post() -{ -} - -extern "C" { - void *create() - { - return new MidiFile(); - } - - void destroy(void *h) - { - MidiFile *midifile = (MidiFile*)h; - delete midifile; - } - - bool init(void *h, int i, char *inames[]) - { - MidiFile *midifile = (MidiFile*)h; - return midifile->init(i, inames); - } - - void setparm(void *h, const char *parm, const char *value) - { - MidiFile *midifile = (MidiFile*)h; - midifile->setParm(parm, value); - } - - bool start(void *h) - { - MidiFile *midifile = (MidiFile*)h; - return midifile->start(); - } - - void stop(void *h) - { - MidiFile *midifile = (MidiFile*)h; - midifile->stop(); - } - - void pre(void *h) - { - MidiFile *midifile = (MidiFile*)h; - midifile->pre(); - } - - event_t *run(void *h, size_t pos, size_t len, size_t *nev) - { - MidiFile *midifile = (MidiFile*)h; - return midifile->run(pos, len, nev); - } - - void post(void *h) - { - MidiFile *midifile = (MidiFile*)h; - midifile->post(); - } -} - -#ifdef TEST_AUDIOINPUTENGINEMIDIFILE -//Additional dependency files -//deps: -//Required cflags (autoconf vars may be used) -//cflags: -//Required link options (autoconf vars may be used) -//libs: -#include "test.h" - -TEST_BEGIN; - -// TODO: Put some testcode here (see test.h for usable macros). - -TEST_END; - -#endif/*TEST_AUDIOINPUTENGINEMIDIFILE*/ |