mirror of
https://github.com/libretro/scummvm.git
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175 lines
4.0 KiB
C++
175 lines
4.0 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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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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* 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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* 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 02110-1301, USA.
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*
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*/
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// Music class
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#ifndef TINSEL_MUSIC_H
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#define TINSEL_MUSIC_H
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#include "audio/midiplayer.h"
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#include "audio/audiostream.h"
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#include "audio/mixer.h"
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#include "common/mutex.h"
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class MidiParser;
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namespace Tinsel {
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bool PlayMidiSequence( // Plays the specified MIDI sequence through the sound driver
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uint32 dwFileOffset, // handle of MIDI sequence data
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bool bLoop); // Whether to loop the sequence
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bool MidiPlaying(); // Returns TRUE if a Midi tune is currently playing
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bool StopMidi(); // Stops any currently playing midi
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void SetMidiVolume( // Sets the volume of the MIDI music. Returns the old volume
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int vol); // new volume - 0..MAXMIDIVOL
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int GetMidiVolume();
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void OpenMidiFiles();
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void DeleteMidiBuffer();
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void CurrentMidiFacts(SCNHANDLE *pMidi, bool *pLoop);
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void RestoreMidiFacts(SCNHANDLE Midi, bool Loop);
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int GetTrackNumber(SCNHANDLE hMidi);
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SCNHANDLE GetTrackOffset(int trackNumber);
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void dumpMusic();
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class MidiMusicPlayer : public Audio::MidiPlayer {
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public:
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MidiMusicPlayer();
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virtual void setVolume(int volume);
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void playMIDI(uint32 size, bool loop);
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// void stop();
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void pause();
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void resume();
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// MidiDriver_BASE interface implementation
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virtual void send(uint32 b);
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// The original sets the "sequence timing" to 109 Hz, whatever that
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// means. The default is 120.
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uint32 getBaseTempo() { return _driver ? (109 * _driver->getBaseTempo()) / 120 : 0; }
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private:
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void playXMIDI(uint32 size, bool loop);
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void playSEQ(uint32 size, bool loop);
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};
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class PCMMusicPlayer : public Audio::AudioStream {
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public:
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PCMMusicPlayer();
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~PCMMusicPlayer();
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bool isPlaying() const;
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bool isDimmed() const;
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void getTunePlaying(void *voidPtr, int length);
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void restoreThatTune(void *voidPtr);
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void setMusicSceneDetails(SCNHANDLE hScript, SCNHANDLE hSegment, const char *fileName);
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void setVolume(int volume);
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void startPlay(int id);
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void stopPlay();
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bool getMusicTinselDimmed() const;
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void dim(bool bTinselDim);
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void unDim(bool bTinselUnDim);
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void dimIteration();
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void startFadeOut(int ticks);
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void fadeOutIteration();
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int readBuffer(int16 *buffer, const int numSamples);
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bool isStereo() const { return false; }
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bool endOfData() const { return _end; }
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bool endOfStream() const { return false; }
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int getRate() const { return 22050; }
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protected:
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enum State {
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S_IDLE,
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S_NEW,
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S_MID,
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S_END1,
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S_END2,
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S_END3,
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S_NEXT,
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S_STOP
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};
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struct MusicSegment {
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uint32 numChannels;
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uint32 bitsPerSec;
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uint32 bitsPerSample;
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uint32 sampleLength;
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uint32 sampleOffset;
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};
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Audio::SoundHandle _handle;
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Audio::AudioStream *_curChunk;
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Common::Mutex _mutex;
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bool _end;
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int _silenceSamples;
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State _state, _mState;
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bool _forcePlay;
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int32 _scriptNum;
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int32 _scriptIndex;
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SCNHANDLE _hScript;
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SCNHANDLE _hSegment;
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Common::String _filename;
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uint8 _volume;
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bool _dimmed;
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bool _dimmedTinsel;
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uint8 _dimmedVolume;
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int _dimIteration;
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int _dimPosition;
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uint8 _fadeOutVolume;
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int _fadeOutIteration;
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void play();
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void stop();
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void setVol(uint8 volume);
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bool getNextChunk();
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};
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} // End of namespace Tinsel
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#endif
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