Jack2
1.9.8
|
00001 /* 00002 Copyright (C) 2010 Devin Anderson 00003 00004 This program is free software; you can redistribute it and/or modify 00005 it under the terms of the GNU Lesser General Public License as published by 00006 the Free Software Foundation; either version 2.1 of the License, or 00007 (at your option) any later version. 00008 00009 This program is distributed in the hope that it will be useful, 00010 but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 GNU Lesser General Public License for more details. 00013 00014 You should have received a copy of the GNU Lesser General Public License 00015 along with this program; if not, write to the Free Software 00016 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00017 00018 */ 00019 00020 #include "JackMidiBufferReadQueue.h" 00021 #include "JackMidiUtil.h" 00022 00023 using Jack::JackMidiBufferReadQueue; 00024 00025 JackMidiBufferReadQueue::JackMidiBufferReadQueue() 00026 { 00027 event_count = 0; 00028 index = 0; 00029 } 00030 00031 jack_midi_event_t * 00032 JackMidiBufferReadQueue::DequeueEvent() 00033 { 00034 jack_midi_event_t *e = 0; 00035 if (index < event_count) { 00036 JackMidiEvent *event = &(buffer->events[index]); 00037 midi_event.buffer = event->GetData(buffer); 00038 midi_event.size = event->size; 00039 midi_event.time = last_frame_time + event->time; 00040 e = &midi_event; 00041 index++; 00042 } 00043 return e; 00044 } 00045 00046 void 00047 JackMidiBufferReadQueue::ResetMidiBuffer(JackMidiBuffer *buffer) 00048 { 00049 event_count = 0; 00050 index = 0; 00051 if (! buffer) { 00052 jack_error("JackMidiBufferReadQueue::ResetMidiBuffer - buffer reset " 00053 "to NULL"); 00054 } else if (! buffer->IsValid()) { 00055 jack_error("JackMidiBufferReadQueue::ResetMidiBuffer - buffer reset " 00056 "to invalid buffer"); 00057 } else { 00058 uint32_t lost_events = buffer->lost_events; 00059 if (lost_events) { 00060 jack_error("JackMidiBufferReadQueue::ResetMidiBuffer - %d events " 00061 "lost during mixdown", lost_events); 00062 } 00063 this->buffer = buffer; 00064 event_count = buffer->event_count; 00065 last_frame_time = GetLastFrame(); 00066 } 00067 }