seq_event.h

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/*
 *   This library is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Lesser General Public License as
 *   published by the Free Software Foundation; either version 2.1 of
 *   the License, or (at your option) any later version.
 *
 *   This program 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 Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public
 *   License along with this library; if not, write to the Free Software
 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */
 
#ifndef __ALSA_SEQ_EVENT_H
#define __ALSA_SEQ_EVENT_H
 
typedef unsigned char snd_seq_event_type_t;
 
enum snd_seq_event_type {
    SND_SEQ_EVENT_SYSTEM = 0,
    SND_SEQ_EVENT_RESULT,
 
    SND_SEQ_EVENT_NOTE = 5,
    SND_SEQ_EVENT_NOTEON,
    SND_SEQ_EVENT_NOTEOFF,
    SND_SEQ_EVENT_KEYPRESS,
    
    SND_SEQ_EVENT_CONTROLLER = 10,
    SND_SEQ_EVENT_PGMCHANGE,
    SND_SEQ_EVENT_CHANPRESS,
    SND_SEQ_EVENT_PITCHBEND,
    SND_SEQ_EVENT_CONTROL14,
    SND_SEQ_EVENT_NONREGPARAM,
    SND_SEQ_EVENT_REGPARAM,
 
    SND_SEQ_EVENT_SONGPOS = 20,
    SND_SEQ_EVENT_SONGSEL,
    SND_SEQ_EVENT_QFRAME,
    SND_SEQ_EVENT_TIMESIGN,
    SND_SEQ_EVENT_KEYSIGN,
            
    SND_SEQ_EVENT_START = 30,
    SND_SEQ_EVENT_CONTINUE,
    SND_SEQ_EVENT_STOP,
    SND_SEQ_EVENT_SETPOS_TICK,
    SND_SEQ_EVENT_SETPOS_TIME,
    SND_SEQ_EVENT_TEMPO,
    SND_SEQ_EVENT_CLOCK,
    SND_SEQ_EVENT_TICK,
    SND_SEQ_EVENT_QUEUE_SKEW,
    SND_SEQ_EVENT_SYNC_POS,
 
    SND_SEQ_EVENT_TUNE_REQUEST = 40,
    SND_SEQ_EVENT_RESET,
    SND_SEQ_EVENT_SENSING,
 
    SND_SEQ_EVENT_ECHO = 50,
    SND_SEQ_EVENT_OSS,
 
    SND_SEQ_EVENT_CLIENT_START = 60,
    SND_SEQ_EVENT_CLIENT_EXIT,
    SND_SEQ_EVENT_CLIENT_CHANGE,
    SND_SEQ_EVENT_PORT_START,
    SND_SEQ_EVENT_PORT_EXIT,
    SND_SEQ_EVENT_PORT_CHANGE,
 
    SND_SEQ_EVENT_PORT_SUBSCRIBED,
    SND_SEQ_EVENT_PORT_UNSUBSCRIBED,
 
    SND_SEQ_EVENT_USR0 = 90,
    SND_SEQ_EVENT_USR1,
    SND_SEQ_EVENT_USR2,
    SND_SEQ_EVENT_USR3,
    SND_SEQ_EVENT_USR4,
    SND_SEQ_EVENT_USR5,
    SND_SEQ_EVENT_USR6,
    SND_SEQ_EVENT_USR7,
    SND_SEQ_EVENT_USR8,
    SND_SEQ_EVENT_USR9,
 
    SND_SEQ_EVENT_SYSEX = 130,
    SND_SEQ_EVENT_BOUNCE,
    SND_SEQ_EVENT_USR_VAR0 = 135,
    SND_SEQ_EVENT_USR_VAR1,
    SND_SEQ_EVENT_USR_VAR2,
    SND_SEQ_EVENT_USR_VAR3,
    SND_SEQ_EVENT_USR_VAR4,
 
    SND_SEQ_EVENT_NONE = 255
};
 
 
typedef struct snd_seq_addr {
    unsigned char client;   
    unsigned char port; 
} snd_seq_addr_t;
 
typedef struct snd_seq_connect {
    snd_seq_addr_t sender;  
    snd_seq_addr_t dest;    
} snd_seq_connect_t;
 
 
typedef struct snd_seq_real_time {
    unsigned int tv_sec;        
    unsigned int tv_nsec;       
} snd_seq_real_time_t;
 
typedef unsigned int snd_seq_tick_time_t;
 
typedef union snd_seq_timestamp {
    snd_seq_tick_time_t tick;   
    struct snd_seq_real_time time;  
} snd_seq_timestamp_t;
 
 
#define SND_SEQ_TIME_STAMP_TICK     (0<<0)  
#define SND_SEQ_TIME_STAMP_REAL     (1<<0)  
#define SND_SEQ_TIME_STAMP_MASK     (1<<0)  
#define SND_SEQ_TIME_MODE_ABS       (0<<1)  
#define SND_SEQ_TIME_MODE_REL       (1<<1)  
#define SND_SEQ_TIME_MODE_MASK      (1<<1)  
#define SND_SEQ_EVENT_LENGTH_FIXED  (0<<2)  
#define SND_SEQ_EVENT_LENGTH_VARIABLE   (1<<2)  
#define SND_SEQ_EVENT_LENGTH_VARUSR (2<<2)  
#define SND_SEQ_EVENT_LENGTH_MASK   (3<<2)  
#define SND_SEQ_PRIORITY_NORMAL     (0<<4)  
#define SND_SEQ_PRIORITY_HIGH       (1<<4)  
#define SND_SEQ_PRIORITY_MASK       (1<<4)  
typedef struct snd_seq_ev_note {
    unsigned char channel;      
    unsigned char note;     
    unsigned char velocity;     
    unsigned char off_velocity; 
    unsigned int duration;      
} snd_seq_ev_note_t;
 
typedef struct snd_seq_ev_ctrl {
    unsigned char channel;      
    unsigned char unused[3];    
    unsigned int param;     
    signed int value;       
} snd_seq_ev_ctrl_t;
 
typedef struct snd_seq_ev_raw8 {
    unsigned char d[12];        
} snd_seq_ev_raw8_t;
 
typedef struct snd_seq_ev_raw32 {
    unsigned int d[3];      
} snd_seq_ev_raw32_t;
 
struct snd_seq_ev_ext {
    unsigned int len;       
    void *ptr;          
} __attribute__((packed));
typedef struct snd_seq_ev_ext snd_seq_ev_ext_t;
#ifdef DOC_HIDDEN
/* redefine typedef for stupid doxygen */
typedef snd_seq_ev_ext snd_seq_ev_ext_t;
#endif
 
typedef struct snd_seq_result {
    int event;      
    int result;     
} snd_seq_result_t;
 
typedef struct snd_seq_queue_skew {
    unsigned int value; 
    unsigned int base;  
} snd_seq_queue_skew_t;
 
typedef struct snd_seq_ev_queue_control {
    unsigned char queue;            
    unsigned char unused[3];        
    union {
        signed int value;       
        snd_seq_timestamp_t time;   
        unsigned int position;      
        snd_seq_queue_skew_t skew;  
        unsigned int d32[2];        
        unsigned char d8[8];        
    } param;                
} snd_seq_ev_queue_control_t;
 
 
typedef struct snd_seq_event {
    snd_seq_event_type_t type;  
    unsigned char flags;        
    unsigned char tag;      
    unsigned char queue;        
    snd_seq_timestamp_t time;   
    snd_seq_addr_t source;      
    snd_seq_addr_t dest;        
    union {
        snd_seq_ev_note_t note;     
        snd_seq_ev_ctrl_t control;  
        snd_seq_ev_raw8_t raw8;     
        snd_seq_ev_raw32_t raw32;   
        snd_seq_ev_ext_t ext;       
        snd_seq_ev_queue_control_t queue; 
        snd_seq_timestamp_t time;   
        snd_seq_addr_t addr;        
        snd_seq_connect_t connect;  
        snd_seq_result_t result;    
    } data;             
} snd_seq_event_t;
 
 
#endif /* __ALSA_SEQ_EVENT_H */