event.h

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/*
  Copyright 2008-2016 David Robillard <http://drobilla.net>
  Copyright 2006-2007 Lars Luthman <lars.luthman@gmail.com>
 
  Permission to use, copy, modify, and/or distribute this software for any
  purpose with or without fee is hereby granted, provided that the above
  copyright notice and this permission notice appear in all copies.
 
  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/

 
#ifndef LV2_EVENT_H
#define LV2_EVENT_H
 
#define LV2_EVENT_URI    "http://lv2plug.in/ns/ext/event"  
#define LV2_EVENT_PREFIX LV2_EVENT_URI "#"                 
 
#define LV2_EVENT__Event              LV2_EVENT_PREFIX "Event"               
#define LV2_EVENT__EventPort          LV2_EVENT_PREFIX "EventPort"           
#define LV2_EVENT__FrameStamp         LV2_EVENT_PREFIX "FrameStamp"          
#define LV2_EVENT__TimeStamp          LV2_EVENT_PREFIX "TimeStamp"           
#define LV2_EVENT__generatesTimeStamp LV2_EVENT_PREFIX "generatesTimeStamp"  
#define LV2_EVENT__generic            LV2_EVENT_PREFIX "generic"             
#define LV2_EVENT__inheritsEvent      LV2_EVENT_PREFIX "inheritsEvent"       
#define LV2_EVENT__inheritsTimeStamp  LV2_EVENT_PREFIX "inheritsTimeStamp"   
#define LV2_EVENT__supportsEvent      LV2_EVENT_PREFIX "supportsEvent"       
#define LV2_EVENT__supportsTimeStamp  LV2_EVENT_PREFIX "supportsTimeStamp"   
 
#define LV2_EVENT_AUDIO_STAMP 0  
 
#include <stdint.h>
 
#ifdef __cplusplus
extern "C" {
#endif

static const uint32_t LV2_EVENT_PPQN = 3136573440U;

typedef struct {
        uint32_t frames;

        uint32_t subframes;

        uint16_t type;

        uint16_t size;
 
        /* size bytes of data follow here */
} LV2_Event;
 

typedef struct {
        uint8_t* data;

        uint16_t header_size;

        uint16_t stamp_type;

        uint32_t event_count;

        uint32_t capacity;

        uint32_t size;
} LV2_Event_Buffer;
 

typedef void* LV2_Event_Callback_Data;
 

typedef struct {
        LV2_Event_Callback_Data callback_data;

        uint32_t (*lv2_event_ref)(LV2_Event_Callback_Data callback_data,
                                  LV2_Event*              event);

        uint32_t (*lv2_event_unref)(LV2_Event_Callback_Data callback_data,
                                    LV2_Event*              event);
} LV2_Event_Feature;
 
#ifdef __cplusplus
}  /* extern "C" */
#endif
 
#endif /* LV2_EVENT_H */