--- /dev/null
+/* This file is part of Evoral.
+ * Copyright(C) 2008 Dave Robillard <http://drobilla.net>
+ * Copyright(C) 2000-2008 Paul Davis
+ * Author: Hans Baier
+ *
+ * Evoral 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.
+ *
+ * Evoral 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 details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef EVORAL_LIB_SMF_HPP
+#define EVORAL_LIB_SMF_HPP
+
+#include "evoral/StandardMIDIFile.hpp"
+
+#include <smf.h>
+#include <cassert>
+
+namespace Evoral {
+
+template<typename Time> class Event;
+template<typename Time> class EventRingBuffer;
+
+/** Standard Midi File (Type 0)
+ */
+template<typename Time>
+class LibSMF : public StandardMIDIFile<Time> {
+public:
+ LibSMF() : _last_ev_time(0), _smf(0), _smf_track(0), _empty(true) {};
+ virtual ~LibSMF() {
+ if (_smf) {
+ smf_delete(_smf);
+ _smf = 0;
+ _smf_track = 0;
+ }
+ }
+
+ void seek_to_start() const;
+
+ uint16_t ppqn() const { return _ppqn; }
+ bool is_empty() const { return _empty; }
+ bool eof() const { assert(false); return true; }
+
+ Time last_event_time() const { return _last_ev_time; }
+
+ void begin_write(FrameTime start_time);
+ void append_event_unlocked(uint32_t delta_t, const Event<Time>& ev);
+ void end_write();
+
+ void flush() {};
+ int flush_header() { return 0; }
+ int flush_footer() { return 0; }
+
+protected:
+ int open(const std::string& path);
+ void close();
+
+ int read_event(uint32_t* delta_t, uint32_t* size, uint8_t** buf) const;
+
+private:
+ static const uint16_t _ppqn = 19200;
+
+ Time _last_ev_time; ///< last frame time written, relative to source start
+
+ std::string _path;
+ smf_t* _smf;
+ smf_track_t* _smf_track;
+
+ bool _empty; ///< true iff file contains(non-empty) events
+};
+
+}; /* namespace Evoral */
+
+#endif /* EVORAL_LIB_SMF_HPP */
+
#ifndef EVORAL_SMF_HPP
#define EVORAL_SMF_HPP
-#include <string>
-#include "evoral/types.hpp"
+#include "evoral/StandardMIDIFile.hpp"
namespace Evoral {
/** Standard Midi File (Type 0)
*/
template<typename Time>
-class SMF {
+class SMF : public StandardMIDIFile<Time> {
public:
SMF();
virtual ~SMF();
--- /dev/null
+/* This file is part of Evoral.
+ * Copyright(C) 2008 Dave Robillard <http://drobilla.net>
+ * Copyright(C) 2000-2008 Paul Davis
+ * Author: Hans Baier
+ *
+ * Evoral 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.
+ *
+ * Evoral 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 details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef EVORAL_STANDARD_MIDI_FILE_HPP
+#define EVORAL_STANDARD_MIDI_FILE_HPP
+
+#include <string>
+#include "evoral/types.hpp"
+
+namespace Evoral {
+
+template<typename Time> class Event;
+template<typename Time> class EventRingBuffer;
+
+
+/** Standard MIDI File interface
+ */
+template<typename Time>
+class StandardMIDIFile {
+public:
+ virtual void seek_to_start() const = 0;
+
+ virtual uint16_t ppqn() const = 0;
+ virtual bool is_empty() const = 0;
+ virtual bool eof() const = 0;
+
+ virtual Time last_event_time() const = 0;
+
+ virtual void begin_write(FrameTime start_time) = 0;
+ virtual void append_event_unlocked(uint32_t delta_t, const Event<Time>& ev) = 0;
+ virtual void end_write() = 0;
+
+ virtual void flush() = 0;
+ virtual int flush_header() = 0;
+ virtual int flush_footer() = 0;
+
+protected:
+ virtual int open(const std::string& path) = 0;
+ virtual void close() = 0;
+
+ virtual int read_event(uint32_t* delta_t, uint32_t* size, uint8_t** buf) const = 0;
+
+};
+
+}; /* namespace Evoral */
+
+#endif /* EVORAL_STANDARD_MIDI_FILE_HPP */
+
--- /dev/null
+#include "evoral/LibSMF.hpp"
+#include "evoral/Event.hpp"
+#include <cassert>
+
+#include <iostream>
+
+using namespace std;
+
+namespace Evoral {
+
+
+/** Attempt to open the SMF file for reading and writing.
+ *
+ * Currently SMF is always read/write.
+ *
+ * \return 0 on success
+ * -1 if the file can not be opened
+ */
+template<typename Time>
+int
+LibSMF<Time>::open(const std::string& path)
+{
+ if (_smf) {
+ smf_delete(_smf);
+ }
+
+ _smf = smf_load(path.c_str());
+ if (!_smf) {
+ _smf = smf_new();
+ smf_set_ppqn(_smf, _ppqn);
+
+ if(_smf == NULL) {
+ return -1;
+ }
+ }
+
+ _smf_track = smf_get_track_by_number(_smf, 1);
+ assert(_smf_track);
+
+ cerr << "number of events: " << _smf_track->number_of_events << endl;
+
+ _empty = !(_smf_track->number_of_events > 0);
+
+ return 0;
+}
+
+template<typename Time>
+void
+LibSMF<Time>::close()
+{
+ assert(false);
+ if (_smf) {
+ smf_save(_smf, _path.c_str());
+ smf_delete(_smf);
+ _smf = 0;
+ _smf_track = 0;
+ }
+}
+
+template<typename Time>
+void
+LibSMF<Time>::seek_to_start() const
+{
+ smf_rewind(_smf);
+}
+
+/** Read an event from the current position in file.
+ *
+ * File position MUST be at the beginning of a delta time, or this will die very messily.
+ * ev.buffer must be of size ev.size, and large enough for the event. The returned event
+ * will have it's time field set to it's delta time, in SMF tempo-based ticks, using the
+ * rate given by ppqn() (it is the caller's responsibility to calculate a real time).
+ *
+ * \a size should be the capacity of \a buf. If it is not large enough, \a buf will
+ * be freed and a new buffer allocated in its place, the size of which will be placed
+ * in size.
+ *
+ * Returns event length (including status byte) on success, 0 if event was
+ * skipped (eg a meta event), or -1 on EOF (or end of track).
+ */
+template<typename Time>
+int
+LibSMF<Time>::read_event(uint32_t* delta_t, uint32_t* size, uint8_t** buf) const
+{
+ smf_event_t *event;
+
+ assert(delta_t);
+ assert(size);
+ assert(buf);
+
+ if ((event = smf_get_next_event(_smf)) != NULL) {
+ if (smf_event_is_metadata(event)) {
+ return 0;
+ }
+ *delta_t = event->delta_time_pulses;
+
+ int event_size = event->midi_buffer_length;
+ assert(event_size > 0);
+
+ // Make sure we have enough scratch buffer
+ if (*size < (unsigned)event_size) {
+ *buf = (uint8_t*)realloc(*buf, event_size);
+ }
+ memcpy(*buf, event->midi_buffer, size_t(event_size));
+ *size = event_size;
+
+ return event_size;
+ } else {
+ return -1;
+ }
+}
+
+template<typename Time>
+void
+LibSMF<Time>::append_event_unlocked(uint32_t delta_t, const Event<Time>& ev)
+{
+ assert(ev.size() > 0);
+
+ smf_event_t *event;
+
+ event = smf_event_new_from_pointer((void *) ev.buffer(), int(ev.size()));
+ assert(event != NULL);
+
+ memcpy(event->midi_buffer, ev.buffer(), ev.size());
+
+ assert(_smf_track);
+ smf_track_add_event_delta_pulses (_smf_track, event, int(delta_t));
+ _last_ev_time = ev.time();
+
+ if (ev.size() > 0) {
+ _empty = false;
+ }
+}
+
+template<typename Time>
+void
+LibSMF<Time>::begin_write(FrameTime start_frame)
+{
+ assert(_smf_track);
+ smf_track_delete(_smf_track);
+
+ _smf_track = smf_track_new();
+ assert(_smf_track);
+
+ smf_add_track(_smf, _smf_track);
+ assert(_smf->number_of_tracks == 1);
+
+ _last_ev_time = 0;
+}
+
+template<typename Time>
+void
+LibSMF<Time>::end_write()
+{
+ smf_save(_smf, _path.c_str());
+}
+
+template class LibSMF<double>;
+
+} // namespace Evoral
uint8_t* buf = NULL;
int ret;
while ((ret = smf.read_event(&delta_t, &size, &buf)) >= 0) {
- cerr << "read smf event type " << int(buf[0]) << endl;
ev.set(buf, size, 0.0);
time += delta_t;
if (ret > 0) { // didn't skip (meta) event
+ cerr << "read smf event type " << hex << int(buf[0]) << endl;
// make ev.time absolute time in frames
ev.time() = time * frames_per_beat / (double)smf.ppqn();
ev.set_event_type(type_map->midi_event_type(buf[0]));
#include <cppunit/TestFixture.h>
#include <cppunit/extensions/HelperMacros.h>
-#include <evoral/SMF.hpp>
+#include <evoral/LibSMF.hpp>
#include "SequenceTest.hpp"
using namespace Evoral;
template<typename Time>
-class TestSMF : public SMF<Time> {
+class TestSMF : public LibSMF<Time> {
public:
int open(const std::string& path) {
- return SMF<Time>::open(path);
+ return LibSMF<Time>::open(path);
}
int read_event(uint32_t* delta_t, uint32_t* size, uint8_t** buf) const {
- return SMF<Time>::read_event(delta_t, size, buf);
+ return LibSMF<Time>::read_event(delta_t, size, buf);
}
};
autowaf.check_pkg(conf, 'glibmm-2.4', uselib_store='GLIBMM', atleast_version='2.14.0', mandatory=True)
autowaf.check_pkg(conf, 'gthread-2.0', uselib_store='GTHREAD', atleast_version='2.14.0', mandatory=True)
autowaf.check_pkg(conf, 'cppunit', uselib_store='CPPUNIT', atleast_version='1.12.0', mandatory=False)
+ autowaf.check_pkg(conf, 'smf', uselib_store='SMF', atleast_version='1.2', mandatory=False)
def build(bld):
# Headers
src/Note.cpp
src/SMF.cpp
src/SMFReader.cpp
+ src/LibSMF.cpp
src/Sequence.cpp
'''
obj.export_incdirs = ['.']
obj.includes = ['.', './src']
obj.name = 'libevoral'
obj.target = 'evoral'
- obj.uselib = 'GLIBMM GTHREAD'
+ obj.uselib = 'GLIBMM GTHREAD SMF'
obj.vnum = EVORAL_LIB_VERSION
obj.install_path = ''
projects / ardour.git / commitdiff