File: midi.h

package info (click to toggle)
scummvm 2.9.1%2Bdfsg-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 450,580 kB
  • sloc: cpp: 4,299,825; asm: 28,322; python: 12,901; sh: 11,302; java: 9,289; xml: 7,895; perl: 2,639; ansic: 2,465; yacc: 1,670; javascript: 1,020; makefile: 933; lex: 578; awk: 275; objc: 82; sed: 11; php: 1
file content (151 lines) | stat: -rw-r--r-- 5,186 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef MTROPOLIS_PLUGIN_MIDI_H
#define MTROPOLIS_PLUGIN_MIDI_H

#include "mtropolis/modifier_factory.h"
#include "mtropolis/modifiers.h"
#include "mtropolis/plugin/midi_data.h"
#include "mtropolis/runtime.h"

class MidiDriver;

namespace MTropolis {

class Runtime;

namespace Midi {

class MidiPlugIn;
class MidiFilePlayer;
class MidiNotePlayer;
class MultiMidiPlayer;
class MidiCombinerSource;

class MidiModifier : public Modifier {
public:
	MidiModifier();
	~MidiModifier();

	bool load(const PlugInModifierLoaderContext &context, const Data::Midi::MidiModifier &data);

	bool respondsToEvent(const Event &evt) const override;
	VThreadState consumeMessage(Runtime *runtime, const Common::SharedPtr<MessageProperties> &msg) override;
	void disable(Runtime *runtime) override;

	bool readAttribute(MiniscriptThread *thread, DynamicValue &result, const Common::String &attrib) override;
	MiniscriptInstructionOutcome writeRefAttribute(MiniscriptThread *thread, DynamicValueWriteProxy &result, const Common::String &attrib) override;
	MiniscriptInstructionOutcome writeRefAttributeIndexed(MiniscriptThread *thread, DynamicValueWriteProxy &result, const Common::String &attrib, const DynamicValue &index) override;

#ifdef MTROPOLIS_DEBUG_ENABLE
	const char *debugGetTypeName() const override { return "MIDI Modifier"; }
	SupportStatus debugGetSupportStatus() const override { return kSupportStatusDone; }
#endif

private:
	struct MuteTrackProxyInterface {
		static MiniscriptInstructionOutcome write(MiniscriptThread *thread, const DynamicValue &dest, void *objectRef, uintptr ptrOrOffset);
		static MiniscriptInstructionOutcome refAttrib(MiniscriptThread *thread, DynamicValueWriteProxy &proxy, void *objectRef, uintptr ptrOrOffset, const Common::String &attrib);
		static MiniscriptInstructionOutcome refAttribIndexed(MiniscriptThread *thread, DynamicValueWriteProxy &proxy, void *objectRef, uintptr ptrOrOffset, const Common::String &attrib, const DynamicValue &index);
	};

	Common::SharedPtr<Modifier> shallowClone() const override;
	const char *getDefaultName() const override;

	MiniscriptInstructionOutcome scriptSetVolume(MiniscriptThread *thread, const DynamicValue &value);
	MiniscriptInstructionOutcome scriptSetNoteVelocity(MiniscriptThread *thread, const DynamicValue &value);
	MiniscriptInstructionOutcome scriptSetNoteDuration(MiniscriptThread *thread, const DynamicValue &value);
	MiniscriptInstructionOutcome scriptSetNoteNum(MiniscriptThread *thread, const DynamicValue &value);
	MiniscriptInstructionOutcome scriptSetLoop(MiniscriptThread *thread, const DynamicValue &value);
	MiniscriptInstructionOutcome scriptSetPlayNote(MiniscriptThread *thread, const DynamicValue &value);
	MiniscriptInstructionOutcome scriptSetTempo(MiniscriptThread *thread, const DynamicValue &value);
	MiniscriptInstructionOutcome scriptSetMuteTrack(MiniscriptThread *thread, const DynamicValue &value);

	MiniscriptInstructionOutcome scriptSetMuteTrackIndexed(MiniscriptThread *thread, size_t trackIndex, bool muted);

	uint getBoostedVolume(Runtime *runtime) const;

	void playSingleNote();
	void stopSingleNote();

	struct FilePart {
		bool loop;
		bool overrideTempo;
		double tempo;
		double fadeIn;
		double fadeOut;
	};

	struct SingleNotePart {
		uint8 channel;
		uint8 note;
		uint8 velocity;
		uint8 program;
		double duration;
	};

	union ModeSpecificUnion {
		FilePart file;
		SingleNotePart singleNote;
	};

	enum Mode {
		kModeFile,
		kModeSingleNote,
	};

	Event _executeWhen;
	Event _terminateWhen;

	Mode _mode;
	ModeSpecificUnion _modeSpecific;
	uint8 _volume; // We need this always available because scripts will try to set it and then read it even in single note mode

	Common::SharedPtr<Data::Midi::MidiModifier::EmbeddedFile> _embeddedFile;

	uint16 _mutedTracks;

	MidiPlugIn *_plugIn;
	MidiFilePlayer *_filePlayer;
	MidiNotePlayer *_notePlayer;
};

class MidiPlugIn : public MTropolis::PlugIn {
public:
	explicit MidiPlugIn(bool useDynamicMidi);
	~MidiPlugIn();

	void registerModifiers(IPlugInModifierRegistrar *registrar) const override;

	MultiMidiPlayer *getMidi() const;

private:
	PlugInModifierFactory<MidiModifier, Data::Midi::MidiModifier> _midiModifierFactory;

	Common::SharedPtr<MultiMidiPlayer> _midi;
};

} // End of namespace Midi

} // End of namespace MTropolis

#endif