56 lines
2 KiB
C
56 lines
2 KiB
C
/*
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*
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* Singe 3
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* Copyright (C) 2006-2026 Scott Duensing <scott@kangaroopunch.com>
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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 3
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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*/
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#ifndef MIDI_H
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#define MIDI_H
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#include <stdint.h>
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#include <stdbool.h>
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#include "decode.h"
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// Playing a MIDI file means synthesising it, and synthesising it means a sound bank. Singe ships
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// none: a good one is tens of megabytes and would be carried by every platform for a format almost
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// no game uses. Point --soundfont at a .sf2, or put one where midiInit looks, and MIDI plays.
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// Finds and loads the sound bank. Called once at start up; quiet when there is none to find.
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void midiInit(const char *wanted);
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// Whether the bytes begin a standard MIDI file. True regardless of whether a bank is loaded, so
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// the caller can tell "this is a MIDI" from "this will not play".
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bool midiIs(const void *bytes, size_t size);
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// Renders a whole MIDI file to interleaved float samples. False when there is no sound bank or the
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// file will not parse, with the reason in SDL_GetError.
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bool midiRender(const void *bytes, size_t size, DecodedAudioT *out);
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// Releases the sound bank.
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void midiQuit(void);
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// The bank in use for the trace header, or a line saying why there is none. Never NULL.
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const char *midiSoundfont(void);
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#endif // MIDI_H
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