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jack: write midi events to end of buffer

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There is no need to keep one extra byte at the end of the buffer,
we can write the event up to the last byte.
This commit is contained in:
Wim Taymans 2025-03-19 12:57:44 +01:00
parent 3d33acce1d
commit 9b52c07871
1 changed files with 3 additions and 3 deletions
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6
pipewire-jack/src/pipewire-jack.c
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@ -1538,7 +1538,7 @@ static inline jack_midi_data_t* midi_event_reserve(void *port_buffer,
res = ev->inline_data;
} else {
mb->write_pos += data_size;
ev->byte_offset = mb->buffer_size - 1 - mb->write_pos;
ev->byte_offset = mb->buffer_size - mb->write_pos;
res = SPA_PTROFF(mb, ev->byte_offset, uint8_t);
}
mb->event_count += 1;
@ -5791,8 +5791,8 @@ static void *get_buffer_input_midi(struct port *p, jack_nframes_t frames)
convert_to_event(seq, n_seq, mb, p->client->fix_midi_events, p->object->port.type_id);
memcpy(ptr, mb, sizeof(struct midi_buffer) + (mb->event_count
* sizeof(struct midi_event)));
if (mb->write_pos) {
size_t offs = mb->buffer_size - 1 - mb->write_pos;
if (mb->write_pos > 0) {
size_t offs = mb->buffer_size - mb->write_pos;
memcpy(SPA_PTROFF(ptr, offs, void), SPA_PTROFF(mb, offs, void), mb->write_pos);
}
return ptr;