Jack2
1.9.10
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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 #include "JackError.h" 00023 00024 using Jack::JackMidiBufferReadQueue; 00025 00026 JackMidiBufferReadQueue::JackMidiBufferReadQueue() 00027 { 00028 event_count = 0; 00029 index = 0; 00030 } 00031 00032 jack_midi_event_t * 00033 JackMidiBufferReadQueue::DequeueEvent() 00034 { 00035 jack_midi_event_t *e = 0; 00036 if (index < event_count) { 00037 JackMidiEvent *event = &(buffer->events[index]); 00038 midi_event.buffer = event->GetData(buffer); 00039 midi_event.size = event->size; 00040 midi_event.time = last_frame_time + event->time; 00041 e = &midi_event; 00042 index++; 00043 } 00044 return e; 00045 } 00046 00047 void 00048 JackMidiBufferReadQueue::ResetMidiBuffer(JackMidiBuffer *buffer) 00049 { 00050 event_count = 0; 00051 index = 0; 00052 if (! buffer) { 00053 jack_error("JackMidiBufferReadQueue::ResetMidiBuffer - buffer reset " 00054 "to NULL"); 00055 } else if (! buffer->IsValid()) { 00056 jack_error("JackMidiBufferReadQueue::ResetMidiBuffer - buffer reset " 00057 "to invalid buffer"); 00058 } else { 00059 uint32_t lost_events = buffer->lost_events; 00060 if (lost_events) { 00061 jack_error("JackMidiBufferReadQueue::ResetMidiBuffer - %d events " 00062 "lost during mixdown", lost_events); 00063 } 00064 this->buffer = buffer; 00065 event_count = buffer->event_count; 00066 last_frame_time = GetLastFrame(); 00067 } 00068 }