751fdc599e
This adds a new dependency with libfuildsynth. MIDI support is built by default, but can be disabled if not desired. All RTP songs should work well, but there are known problems with other files (see README). Also, the pitch shift implementation is somewhat poor and doesn't match RMXP (at least subjectively). A soundfont is not included and must be provided by the user themself.
124 lines
2.3 KiB
C++
124 lines
2.3 KiB
C++
/*
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** alstream.h
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**
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** This file is part of mkxp.
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**
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** Copyright (C) 2014 Jonas Kulla <Nyocurio@gmail.com>
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**
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** mkxp is free software: you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation, either version 2 of the License, or
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** (at your option) any later version.
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**
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** mkxp 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 mkxp. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef ALSTREAM_H
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#define ALSTREAM_H
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#include "al-util.h"
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#include <string>
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#include <SDL_rwops.h>
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struct SDL_mutex;
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struct SDL_thread;
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struct ALDataSource;
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#define STREAM_BUFS 3
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/* State-machine like audio playback stream.
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* This class is NOT thread safe */
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struct ALStream
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{
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enum State
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{
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Closed,
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Stopped,
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Playing,
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Paused
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};
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bool looped;
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State state;
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ALDataSource *source;
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SDL_Thread *thread;
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std::string threadName;
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SDL_mutex *pauseMut;
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bool preemptPause;
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/* When this flag isn't set and alSrc is
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* in 'STOPPED' state, stream isn't over
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* (it just hasn't started yet) */
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bool streamInited;
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bool sourceExhausted;
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bool threadTermReq;
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bool needsRewind;
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float startOffset;
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float pitch;
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AL::Source::ID alSrc;
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AL::Buffer::ID alBuf[STREAM_BUFS];
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uint64_t procFrames;
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AL::Buffer::ID lastBuf;
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SDL_RWops srcOps;
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struct
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{
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ALenum format;
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ALsizei freq;
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} stream;
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enum LoopMode
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{
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Looped,
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NotLooped
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};
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ALStream(LoopMode loopMode,
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const std::string &threadId);
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~ALStream();
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void close();
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void open(const std::string &filename);
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void stop();
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void play(float offset = 0);
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void pause();
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void setVolume(float value);
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void setPitch(float value);
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State queryState();
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float queryOffset();
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bool queryNativePitch();
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private:
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void closeSource();
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void openSource(const std::string &filename);
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void stopStream();
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void startStream(float offset);
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void pauseStream();
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void resumeStream();
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void checkStopped();
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/* thread func */
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void streamData();
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static int streamDataFun(void *);
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};
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#endif // ALSTREAM_H
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