/usr/include/ags/audio/ags_midiin.h is in libags-audio-dev 1.4.24-1ubuntu2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 | /* GSequencer - Advanced GTK Sequencer
* Copyright (C) 2005-2015 Joël Krähemann
*
* This file is part of GSequencer.
*
* GSequencer 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 3 of the License, or
* (at your option) any later version.
*
* GSequencer 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 GSequencer. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __AGS_MIDIIN_H__
#define __AGS_MIDIIN_H__
#include <glib.h>
#include <glib-object.h>
#include <sys/types.h>
#include <pthread.h>
#include <ags/config.h>
#ifdef AGS_WITH_ALSA
#include <alsa/asoundlib.h>
#endif
#define AGS_TYPE_MIDIIN (ags_midiin_get_type())
#define AGS_MIDIIN(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), AGS_TYPE_MIDIIN, AgsMidiin))
#define AGS_MIDIIN_CLASS(class) (G_TYPE_CHECK_CLASS_CAST(class, AGS_TYPE_MIDIIN, AgsMidiin))
#define AGS_IS_MIDIIN(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), AGS_TYPE_MIDIIN))
#define AGS_IS_MIDIIN_CLASS(class) (G_TYPE_CHECK_CLASS_TYPE ((class), AGS_TYPE_MIDIIN))
#define AGS_MIDIIN_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS(obj, AGS_TYPE_MIDIIN, AgsMidiinClass))
#define AGS_MIDIIN_DEFAULT_ALSA_DEVICE "hw:0,0\0"
#define AGS_MIDIIN_DEFAULT_OSS_DEVICE "/dev/midi00\0"
#define AGS_MIDIIN_DEFAULT_BUFFER_SIZE (4096)
typedef struct _AgsMidiin AgsMidiin;
typedef struct _AgsMidiinClass AgsMidiinClass;
/**
* AgsMidiinFlags:
* @AGS_MIDIIN_BUFFER0: ring-buffer 0
* @AGS_MIDIIN_BUFFER1: ring-buffer 1
* @AGS_MIDIIN_BUFFER2: ring-buffer 2
* @AGS_MIDIIN_BUFFER3: ring-buffer 3
* @AGS_MIDIIN_ATTACK_FIRST: use first attack, instead of second one
* @AGS_MIDIIN_RECORD: is recording
* @AGS_MIDIIN_SHUTDOWN: stop recording
* @AGS_MIDIIN_START_RECORD: just started recording
* @AGS_MIDIIN_NONBLOCKING: do non-blocking calls
* @AGS_MIDIIN_INITIALIZED: recording is initialized
*
* Enum values to control the behavior or indicate internal state of #AgsMidiin by
* enable/disable as flags.
*/
typedef enum
{
AGS_MIDIIN_BUFFER0 = 1,
AGS_MIDIIN_BUFFER1 = 1 << 1,
AGS_MIDIIN_BUFFER2 = 1 << 2,
AGS_MIDIIN_BUFFER3 = 1 << 3,
AGS_MIDIIN_ATTACK_FIRST = 1 << 4,
AGS_MIDIIN_RECORD = 1 << 5,
AGS_MIDIIN_OSS = 1 << 6,
AGS_MIDIIN_ALSA = 1 << 7,
AGS_MIDIIN_SHUTDOWN = 1 << 8,
AGS_MIDIIN_START_RECORD = 1 << 9,
AGS_MIDIIN_NONBLOCKING = 1 << 10,
AGS_MIDIIN_INITIALIZED = 1 << 11,
}AgsMidiinFlags;
/**
* AgsMidiinSyncFlags:
* @AGS_MIDIIN_PASS_THROUGH: do not sync
* @AGS_MIDIIN_INITIAL_POLL: initial poll
* @AGS_MIDIIN_POLL_WAIT: sync wait, sequencer conditional lock
* @AGS_MIDIIN_POLL_DONE: sync done, sequencer conditional lock
* @AGS_MIDIIN_POLL_FINISH_WAIT: sync wait, client conditional lock
* @AGS_MIDIIN_POLL_FINISH_DONE: sync done, client conditional lock
* @AGS_MIDIIN_POLL_SWITCH_BUFFER: switch buffer
*
* Enum values to control the synchronization between sequencer and poll.
*/
typedef enum{
AGS_MIDIIN_PASS_THROUGH = 1,
AGS_MIDIIN_INITIAL_POLL = 1 << 1,
AGS_MIDIIN_POLL_WAIT = 1 << 2,
AGS_MIDIIN_POLL_DONE = 1 << 3,
AGS_MIDIIN_POLL_FINISH_WAIT = 1 << 4,
AGS_MIDIIN_POLL_FINISH_DONE = 1 << 5,
AGS_MIDIIN_POLL_SWITCH_BUFFER = 1 << 6,
}AgsMidiinSyncFlags;
#define AGS_MIDIIN_ERROR (ags_midiin_error_quark())
typedef enum{
AGS_MIDIIN_ERROR_LOCKED_SEQUENCER,
}AgsMidiinError;
struct _AgsMidiin
{
GObject object;
guint flags;
volatile guint sync_flags;
pthread_mutex_t *mutex;
pthread_mutexattr_t *mutexattr;
char **ring_buffer;
guint ring_buffer_size[2];
char **buffer;
guint buffer_size[4];
double bpm; // beats per minute
gdouble delay;
gdouble delay_factor;
guint latency;
gdouble tact_counter;
gdouble delay_counter; // next time attack changeing when delay_counter == delay
guint tic_counter; // in the range of default period
guint note_offset;
union{
struct _AgsOssMidi{
int device_fd;
char *device;
}oss;
struct _AgsAlsaMidi{
char *device;
int rc;
#ifdef AGS_WITH_ALSA
snd_rawmidi_t *handle;
#else
gpointer handle;
#endif
}alsa;
}in;
pthread_t *poll_thread;
pthread_mutex_t *poll_mutex;
pthread_cond_t *poll_cond;
pthread_mutex_t *poll_finish_mutex;
pthread_cond_t *poll_finish_cond;
GObject *application_context;
pthread_mutex_t *application_mutex;
GList *audio;
};
struct _AgsMidiinClass
{
GObjectClass object;
};
GType ags_midiin_get_type();
GQuark ags_midiin_error_quark();
void ags_midiin_switch_buffer_flag(AgsMidiin *midiin);
AgsMidiin* ags_midiin_new(GObject *application_context);
#endif /*__AGS_MIDIIN_H__*/
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