34 lines
1.0 KiB
C++
34 lines
1.0 KiB
C++
/* $Id$ */
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#include <stdint.h>
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#include <jack/midiport.h>
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#include "ringbuffer.h"
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bool RingBuffer::PushEvent(const jack_midi_event_t &ev)
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{
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size_t f = jack_ringbuffer_write_space(m_buffer);
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if (f <= sizeof ev.time + sizeof ev.size + ev.size) return false;
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jack_ringbuffer_write(m_buffer, (const char *)&ev.size, sizeof ev.size);
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jack_ringbuffer_write(m_buffer, (const char *)&ev.time, sizeof ev.time);
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jack_ringbuffer_write(m_buffer, (const char *)ev.buffer, ev.size);
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return true;
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}
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bool RingBuffer::PopEvent(jack_midi_event_t &ev)
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{
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size_t f = jack_ringbuffer_read_space(m_buffer);
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if (f >= sizeof ev.time + sizeof ev.size) {
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jack_ringbuffer_peek(m_buffer, (char *)&ev.size, sizeof ev.size);
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if (f >= sizeof ev.time + sizeof ev.size + ev.size) {
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ev.buffer = (jack_midi_data_t *)malloc(ev.size);
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jack_ringbuffer_read(m_buffer, (char *)&ev.size, sizeof ev.size);
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jack_ringbuffer_read(m_buffer, (char *)&ev.time, sizeof ev.time);
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jack_ringbuffer_read(m_buffer, (char *)ev.buffer, ev.size);
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return true;
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}
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}
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return false;
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}
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