72ce424207
Multi-track MIDI files are played back using separate callback chains for each track, and this introduces the possibility of one track becoming out of sync with the others. This was noticeable in WADs that use multi-track MIDIs, such as Alien Vendetta. Increase the timing resolution to microsecond precision to fix this.
39 lines
1.3 KiB
C
39 lines
1.3 KiB
C
//
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// Copyright(C) 2005-2014 Simon Howard
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// DESCRIPTION:
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// OPL callback queue.
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//
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#ifndef OPL_QUEUE_H
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#define OPL_QUEUE_H
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#include "opl.h"
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typedef struct opl_callback_queue_s opl_callback_queue_t;
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opl_callback_queue_t *OPL_Queue_Create(void);
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int OPL_Queue_IsEmpty(opl_callback_queue_t *queue);
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void OPL_Queue_Clear(opl_callback_queue_t *queue);
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void OPL_Queue_Destroy(opl_callback_queue_t *queue);
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void OPL_Queue_Push(opl_callback_queue_t *queue,
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opl_callback_t callback, void *data,
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uint64_t time);
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int OPL_Queue_Pop(opl_callback_queue_t *queue,
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opl_callback_t *callback, void **data);
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uint64_t OPL_Queue_Peek(opl_callback_queue_t *queue);
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void OPL_Queue_AdjustCallbacks(opl_callback_queue_t *queue,
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uint64_t time, float factor);
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#endif /* #ifndef OPL_QUEUE_H */
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