├── LICENSE
├── README.md
└── src
├── csv.h
├── experimental
└── json.h
├── extra
├── README.md
└── acceleration_maker.cpp
├── json2midi_assert.cpp
├── main.cpp
├── midi.h
├── pt2.cpp
├── pt2.h
├── song_handler.cpp
└── song_handler.h
/LICENSE:
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577 | by the Free Software Foundation.
578 |
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584 | Later license versions may give you additional or different
585 | permissions. However, no additional obligations are imposed on any
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587 | later version.
588 |
589 | 15. Disclaimer of Warranty.
590 |
591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
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600 | 16. Limitation of Liability.
601 |
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610 | SUCH DAMAGES.
611 |
612 | 17. Interpretation of Sections 15 and 16.
613 |
614 | If the disclaimer of warranty and limitation of liability provided
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616 | reviewing courts shall apply local law that most closely approximates
617 | an absolute waiver of all civil liability in connection with the
618 | Program, unless a warranty or assumption of liability accompanies a
619 | copy of the Program in return for a fee.
620 |
621 | END OF TERMS AND CONDITIONS
622 |
623 | How to Apply These Terms to Your New Programs
624 |
625 | If you develop a new program, and you want it to be of the greatest
626 | possible use to the public, the best way to achieve this is to make it
627 | free software which everyone can redistribute and change under these terms.
628 |
629 | To do so, attach the following notices to the program. It is safest
630 | to attach them to the start of each source file to most effectively
631 | state the exclusion of warranty; and each file should have at least
632 | the "copyright" line and a pointer to where the full notice is found.
633 |
634 |
635 | Copyright (C)
636 |
637 | This program is free software: you can redistribute it and/or modify
638 | it under the terms of the GNU General Public License as published by
639 | the Free Software Foundation, either version 3 of the License, or
640 | (at your option) any later version.
641 |
642 | This program is distributed in the hope that it will be useful,
643 | but WITHOUT ANY WARRANTY; without even the implied warranty of
644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
645 | GNU General Public License for more details.
646 |
647 | You should have received a copy of the GNU General Public License
648 | along with this program. If not, see .
649 |
650 | Also add information on how to contact you by electronic and paper mail.
651 |
652 | If the program does terminal interaction, make it output a short
653 | notice like this when it starts in an interactive mode:
654 |
655 | Copyright (C)
656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
657 | This is free software, and you are welcome to redistribute it
658 | under certain conditions; type `show c' for details.
659 |
660 | The hypothetical commands `show w' and `show c' should show the appropriate
661 | parts of the General Public License. Of course, your program's commands
662 | might be different; for a GUI interface, you would use an "about box".
663 |
664 | You should also get your employer (if you work as a programmer) or school,
665 | if any, to sign a "copyright disclaimer" for the program, if necessary.
666 | For more information on this, and how to apply and follow the GNU GPL, see
667 | .
668 |
669 | The GNU General Public License does not permit incorporating your program
670 | into proprietary programs. If your program is a subroutine library, you
671 | may consider it more useful to permit linking proprietary applications with
672 | the library. If this is what you want to do, use the GNU Lesser General
673 | Public License instead of this License. But first, please read
674 | .
675 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # json2midi
2 | JSON to MIDI converter for Piano Tiles 2
3 | # How to install
4 | `git clone https://github.com/Volian0/json2midi`
5 | `cd json2midi`
6 | `g++ src/*.cpp -std=c++11 -o json2midi`
7 | # How to update
8 | `cd json2midi`
9 | `git pull`
10 | `g++ src/*.cpp -std=c++11 -o json2midi`
11 | # How to use
12 | ## Automatic
13 | If the JSON file contains bpms and baseBeats, you can just simply pass the filename as parameter
14 | `json2midi song.json`
15 | or
16 | `json2midi song.json auto`
17 | ## Manual
18 | In this mode, you need to specify all required bpms and baseBeats for each part
19 | `json2midi song.json 120 0.25 122 0.25 124 0.5`
20 | ## Using music_json.csv
21 | You can convert the entire CSV by passing it as parameter
22 | `json2midi music_json.csv`
23 |
--------------------------------------------------------------------------------
/src/csv.h:
--------------------------------------------------------------------------------
1 | #include
2 | #include
3 | #include
4 | #include
5 | #include
6 |
7 | namespace csv
8 | {
9 |
10 | class CSVrecord
11 | {
12 | public:
13 | std::vector fields;
14 | };
15 |
16 | class CSVfile
17 | {
18 | public:
19 | std::vector records;
20 | void parse(const std::string& filename)
21 | {
22 | records.clear();
23 | std::vector bytes;
24 | {
25 | std::ifstream file(filename,std::ios::binary);
26 | if (!file)
27 | throw std::runtime_error("Can't open \""+filename+"\"");
28 | uint8_t c;
29 | while (file >> std::noskipws >> c)
30 | bytes.push_back(c);
31 | }
32 | if (bytes.empty())
33 | throw std::runtime_error("Empty CSV");
34 | records.push_back(CSVrecord());
35 | records.back().fields.push_back(std::string());
36 | uint8_t mode{};
37 | bool req_LF{};
38 | for (std::vector::size_type i=0; i
5 | #include
6 | #include
7 | #include
8 |
9 | namespace json
10 | {
11 |
12 | class JsonValue;
13 |
14 | struct pair
15 | {
16 | std::string str;
17 | JsonValue * value = nullptr;
18 | ~pair();
19 | };
20 | class JsonObject
21 | {
22 | friend class JsonFile;
23 | friend class JsonValue;
24 | std::vector pairs;
25 | void Add(const std::string & str)
26 | {
27 | for (size_t i=0; istr==str)
30 | throw std::exception();
31 | }
32 | pairs.push_back(new pair);
33 | pairs.back()->str=str;
34 | }
35 | ~JsonObject()
36 | {
37 | for (size_t i=0; istr==str)
46 | return pairs[i]->value;
47 | }
48 | if (validate)
49 | throw std::exception();
50 | return nullptr;
51 | }
52 | };
53 | class JsonArray
54 | {
55 | friend class JsonFile;
56 | friend class JsonValue;
57 | std::vector values;
58 | ~JsonArray();
59 | public:
60 | size_t GetSize()
61 | {
62 | return values.size();
63 | }
64 | JsonValue * GetValue(const size_t & n)
65 | {
66 | if (nstr.length())
156 | throw std::exception();
157 | size_t pos = i;
158 | i=i+size;
159 | return str.substr(pos,size);
160 | }
161 | uint8_t ConvertHex(const char c)
162 | {
163 | if (c>='0'&&c<='9')
164 | return c - '0';
165 | if (c>='A'&&c<='F')
166 | return c - 'A' + 10;
167 | if (c>='a'&&c<='f')
168 | return c - 'a' + 10;
169 | throw std::exception();
170 | return 0;
171 | }
172 | std::string GetUnicode(const uint16_t code)
173 | {
174 | std::string s;
175 | if (code <= 0x7F)
176 | s += (code & 0x7F);
177 | else if (code <= 0x7FF)
178 | {
179 | s += 0xC0 | ((code >> 6) & 0x1F);
180 | s += 0x80 | (code & 0x3F);
181 | }
182 | //else if (code <= 0xFFFF)
183 | else
184 | {
185 | s += 0xE0 | ((code >> 12) & 0xF);
186 | s += 0x80 | ((code >> 6) & 0x3F);
187 | s += 0x80 | (code & 0x3F);
188 | }
189 | return s;
190 | }
191 | std::string ConvertEscape(const std::string & str,size_t & i)
192 | {
193 | std::string s = GetStringPart(str,i,1);
194 | if (s[0]=='\"'||s[0]=='\\'||s[0]=='/')
195 | return s;
196 | if (s[0]=='b')
197 | return "\b";
198 | if (s[0]=='f')
199 | return "\f";
200 | if (s[0]=='n')
201 | return "\n";
202 | if (s[0]=='r')
203 | return "\r";
204 | if (s[0]=='t')
205 | return "\t";
206 | if (s[0]=='u')
207 | {
208 | s = GetStringPart(str,i,4);
209 | return GetUnicode((ConvertHex(s[0])<<12)|(ConvertHex(s[1])<<8)|(ConvertHex(s[2])<<4)|ConvertHex(s[3]));
210 | }
211 | throw std::exception();
212 | return std::string();
213 | }
214 | std::string ParseString(const std::string & str,size_t & i)
215 | {
216 | std::string s;
217 | while (true)
218 | {
219 | char c=GetStringPart(str,i,1)[0];
220 | if (c>=0x0000&&c<=0x001F)
221 | throw std::exception();
222 | if (c=='\"')
223 | break;
224 | if (c=='\\')
225 | s += ConvertEscape(str,i);
226 | else
227 | s += c;
228 | }
229 | return s;
230 | }
231 | void ValidateOther(const std::string & str)
232 | {
233 | if (str=="true"||str=="false"||str=="null")
234 | return;
235 | uint8_t mode=0;
236 | bool allow=false;
237 | for (size_t i=0; i='1'&&str[i]<='9')
247 | {
248 | mode=2;
249 | continue;
250 | }
251 | else if (mode==1&&str[i]=='0')
252 | {
253 | mode=3;
254 | continue;
255 | }
256 | else if (mode==1)
257 | throw std::exception();
258 | if (mode==2&&!(str[i]>='0'&&str[i]<='9'))
259 | mode=3;
260 | if (mode==3&&str[i]=='.')
261 | {
262 | mode=4;
263 | continue;
264 | }
265 | else if (mode==3)
266 | mode=5;
267 | if (mode==4&&str[i]>='0'&&str[i]<='9')
268 | allow=true;
269 | else if (mode==4&&allow)
270 | {
271 | allow=false;
272 | mode=5;
273 | }
274 | else if (mode==4)
275 | throw std::exception();
276 | if (mode==5&&(str[i]=='e'||str[i]=='E'))
277 | {
278 | mode=6;
279 | continue;
280 | }
281 | else if (mode==5)
282 | throw std::exception();
283 | if (mode==6&&(str[i]=='+'||str[i]=='-'))
284 | {
285 | mode=7;
286 | continue;
287 | }
288 | else if (mode==6)
289 | mode=7;
290 | if (mode==7&&str[i]>='0'&&str[i]<='9')
291 | allow=true;
292 | else if (mode==7)
293 | throw std::exception();
294 | }
295 | if (mode==2||mode==3||(mode==4&&allow)||mode==5||(mode==7&&allow))
296 | return;
297 | throw std::exception();
298 | }
299 | JsonObject * ParseObject(const std::string & str,size_t & i)
300 | {
301 | JsonObject * object = new JsonObject;
302 | IgnoreWhiteSpace(str,i);
303 | char c;
304 | bool once=true;
305 | while (true)
306 | {
307 | IgnoreWhiteSpace(str,i);
308 | c = GetStringPart(str,i,1)[0];
309 | if (c=='}'&&once)
310 | break;
311 | once = false;
312 | if (c!='\"')
313 | throw std::exception();
314 | object->Add(ParseString(str,i));
315 | IgnoreWhiteSpace(str,i);
316 | if (GetStringPart(str,i,1)[0]!=':')
317 | throw std::exception();
318 | object->pairs.back()->value = ParseValue(str,i);
319 | c = GetStringPart(str,i,1)[0];
320 | if (c=='}')
321 | break;
322 | if (c!=',')
323 | throw std::exception();
324 | }
325 | return object;
326 | }
327 | JsonArray * ParseArray(const std::string & str,size_t & i)
328 | {
329 | JsonArray * array = new JsonArray;
330 | IgnoreWhiteSpace(str,i);
331 | char c;
332 | bool once=true;
333 | while (true)
334 | {
335 | IgnoreWhiteSpace(str,i);
336 | c = GetStringPart(str,i,1)[0];
337 | if (c==']'&&once)
338 | break;
339 | once = false;
340 | array->values.push_back(ParseValue(str,--i));
341 | c = GetStringPart(str,i,1)[0];
342 | if (c==']')
343 | break;
344 | if (c!=',')
345 | throw std::exception();
346 | }
347 | return array;
348 | }
349 | JsonValue * ParseValue(const std::string & str,size_t & i)
350 | {
351 | JsonValue * value = new JsonValue;
352 | IgnoreWhiteSpace(str,i);
353 | std::string s = GetStringPart(str,i,1);
354 | if (s[0]=='\"')
355 | {
356 | value->value = new std::string(ParseString(str,i));
357 | value->type = 1;
358 | }
359 | else if (s[0]=='{')
360 | {
361 | value->value = ParseObject(str,i);
362 | value->type = 2;
363 | }
364 | else if (s[0]=='[')
365 | {
366 | value->value = ParseArray(str,i);
367 | value->type = 3;
368 | }
369 | else
370 | {
371 | while(i='0'&&str[i]<='9')||(str[i]>='a'&&str[i]<='z')||str[i]=='.'||str[i]=='+'||str[i]=='-'||str[i]=='E'))
372 | {
373 | s+=str[i];
374 | ++i;
375 | }
376 | ValidateOther(s);
377 | value->value = new std::string(s);
378 | value->type = 4;
379 | }
380 | IgnoreWhiteSpace(str,i);
381 | return value;
382 | }
383 | public:
384 | JsonValue * value = nullptr;
385 | JsonFile(const std::string & filename)
386 | {
387 | delete value;
388 | std::ifstream file(filename,std::ios::binary);
389 | if (file)
390 | {
391 | std::string str;
392 | char c;
393 | size_t i = 0;
394 | while (file >> std::noskipws >> c)
395 | str+=c;
396 | file.close();
397 | value = ParseValue(str,i);
398 | if (i!=str.size())
399 | throw std::exception();
400 | }
401 | else
402 | throw std::exception();
403 | }
404 | ~JsonFile()
405 | {
406 | delete value;
407 | value = nullptr;
408 | }
409 | };
410 |
411 | }
412 |
413 | #endif
414 |
--------------------------------------------------------------------------------
/src/extra/README.md:
--------------------------------------------------------------------------------
1 | # Acceleration Maker
2 | This program generates tempo map for PT2 songs with acceleration
3 | `acceleration_maker [staring TPM] [acceleration] [time in seconds] [MIDI filename]`
4 |
--------------------------------------------------------------------------------
/src/extra/acceleration_maker.cpp:
--------------------------------------------------------------------------------
1 | #include
2 | #include
3 | #include
4 | #include "../midi.h"
5 |
6 | int main(int argc, char* argv[])
7 | {
8 | if (argc<5)
9 | throw std::logic_error("Not enough arguments");
10 | long double start_tpm{std::stold(argv[1])};
11 | long double acc{std::stold(argv[2])};
12 | uint64_t time{std::stoull(argv[3])*10};
13 | uint64_t current_tick{};
14 | midi::MIDIfile midi(1200);
15 | for (uint64_t i{}; iuint64_t{}-1)&&!(tick_ld==0))
20 | throw std::logic_error("Error 1");
21 | uint64_t tick = tick_ld;
22 | if (current_tick>tick)
23 | throw std::logic_error("Error 2");
24 | midi[0].AddDelay(tick-current_tick);
25 | current_tick = tick;
26 | midi.SetTempo(120000000/tpm);
27 | }
28 | midi.Create(argv[4]);
29 | return 0;
30 | }
31 |
--------------------------------------------------------------------------------
/src/json2midi_assert.cpp:
--------------------------------------------------------------------------------
1 | #include
2 |
3 | static_assert(std::numeric_limits::digits>=31,"Float not precise enough");
4 |
--------------------------------------------------------------------------------
/src/main.cpp:
--------------------------------------------------------------------------------
1 | #include "song_handler.h"
2 |
3 | int main(int argc, char* argv[])
4 | {
5 | std::vector args;
6 | for (int i = 1; i < argc; ++i)
7 | args.push_back(argv[i]);
8 | return pt2::handle_file(args);
9 | }
10 |
--------------------------------------------------------------------------------
/src/midi.h:
--------------------------------------------------------------------------------
1 | #ifndef MIDI_H
2 | #define MIDI_H
3 |
4 | #include // For std::vector<>
5 | #include
6 | #include
7 | #include
8 | #include
9 |
10 | namespace midi
11 | {
12 |
13 | /* First define a custom wrapper over std::vector
14 | * so we can quickly push_back multiple bytes with a single call.
15 | */
16 | class MIDIvec
17 | {
18 | public:
19 | std::vector bytes;
20 | // Methods for appending raw data into the vector:
21 | template
22 | void AddBytes(uint8_t data, Args...args)
23 | {
24 | bytes.push_back(data);
25 | AddBytes(args...);
26 | }
27 | template
28 | void AddBytes(const std::string& s, Args...args)
29 | {
30 | bytes.insert(bytes.end(), s.begin(), s.end());
31 | AddBytes(args...);
32 | }
33 | void AddBytes() { }
34 | };
35 |
36 | /* Define a class which encodes MIDI events into a track */
37 | class MIDItrack: public MIDIvec
38 | {
39 | protected:
40 | uint32_t delay, running_status;
41 | public:
42 | MIDItrack()
43 | : MIDIvec(), delay(0), running_status(0)
44 | {
45 | }
46 |
47 | // Methods for indicating how much time elapses:
48 | void AddDelay(uint32_t amount)
49 | {
50 | delay += amount;
51 | if((delay|amount)>0xFFFFFFF)
52 | throw std::overflow_error("Time overflow");
53 | }
54 |
55 | void AddVarLen(uint32_t t)
56 | {
57 | if(t >> 21)
58 | AddBytes(0x80 | ((t >> 21) & 0x7F));
59 | if(t >> 14)
60 | AddBytes(0x80 | ((t >> 14) & 0x7F));
61 | if(t >> 7)
62 | AddBytes(0x80 | ((t >> 7) & 0x7F));
63 | AddBytes(((t >> 0) & 0x7F));
64 | }
65 |
66 | void Flush()
67 | {
68 | AddVarLen(delay);
69 | delay = 0;
70 | }
71 |
72 | // Methods for appending events into the track:
73 | template
74 | void AddEvent(uint8_t data, Args...args)
75 | {
76 | /* MIDI tracks have the following structure:
77 | *
78 | * { timestamp [metaevent ... ] event } ...
79 | *
80 | * Each event is prefixed with a timestamp,
81 | * which is encoded in a variable-length format.
82 | * The timestamp describes the amount of time that
83 | * must be elapsed before this event can be handled.
84 | *
85 | * After the timestamp, comes the event data.
86 | * The first byte of the event always has the high bit on,
87 | * and the remaining bytes always have the high bit off.
88 | *
89 | * The first byte can however be omitted; in that case,
90 | * it is assumed that the first byte is the same as in
91 | * the previous command. This is called "running status".
92 | * The event may furthermore beprefixed
93 | * with a number of meta events.
94 | */
95 | Flush();
96 | if(data != running_status)
97 | AddBytes(running_status = data);
98 | AddBytes(args...);
99 | }
100 | void AddEvent() { }
101 |
102 | template
103 | void AddMetaEvent(uint8_t metatype, uint8_t nbytes, Args...args)
104 | {
105 | Flush();
106 | AddBytes(0xFF, metatype, nbytes, args...);
107 | }
108 |
109 | // Key-related parameters: channel number, note number, pressure
110 | void KeyOn(uint8_t ch, uint8_t n, uint8_t p)
111 | {
112 | if((n|p)<0x80)
113 | AddEvent(0x90|ch, n, p);
114 | }
115 | void KeyOff(uint8_t ch, uint8_t n, uint8_t p)
116 | {
117 | if((n|p)<0x80)
118 | AddEvent(0x80|ch, n, p);
119 | }
120 | void KeyTouch(uint8_t ch, uint8_t n, uint8_t p)
121 | {
122 | if((n|p)<0x80)
123 | AddEvent(0xA0|ch, n, p);
124 | }
125 | // Events with other types of parameters:
126 | void Control(uint16_t ch, uint16_t c, uint16_t v)
127 | {
128 | AddEvent(0xB0|ch, c, v);
129 | }
130 | void Patch(uint16_t ch, uint16_t patchno)
131 | {
132 | AddEvent(0xC0|ch, patchno);
133 | }
134 | void Wheel(uint16_t ch, uint32_t value)
135 | {
136 | AddEvent(0xE0|ch, value&0x7F, (value>>7)&0x7F);
137 | }
138 |
139 | // Methods for appending metadata into the track:
140 | void AddText(uint16_t texttype, const std::string& text)
141 | {
142 | AddMetaEvent(texttype, text.size(), text);
143 | }
144 | };
145 |
146 | /* Define a class that encapsulates all methods needed to craft a MIDI file. */
147 | class MIDIfile: public MIDIvec
148 | {
149 | protected:
150 | std::vector tracks;
151 | uint32_t deltaticks;
152 | public:
153 | MIDIfile(uint32_t ppq)
154 | : MIDIvec(), tracks(), deltaticks(ppq)
155 | {
156 | }
157 |
158 | void AddLoopStart()
159 | {
160 | (*this)[0].AddText(6, "loopStart");
161 | }
162 | void AddLoopEnd()
163 | {
164 | (*this)[0].AddText(6, "loopEnd");
165 | }
166 | void SetTempo(uint32_t tempo)
167 | {
168 | (*this)[0].AddMetaEvent(0x51,3, tempo>>16, tempo>>8, tempo);
169 | }
170 |
171 | MIDItrack& operator[] (uint16_t trackno)
172 | {
173 | if(trackno >= tracks.size())
174 | {
175 | tracks.resize(trackno+1);
176 | }
177 |
178 | return tracks[trackno];
179 | }
180 |
181 | void Create(const std::string& filename)
182 | {
183 | bytes.clear();
184 | AddBytes(
185 | // MIDI signature (MThd and number 6)
186 | "MThd", 0,0,0,6,
187 | // Format number (1: multiple tracks, synchronous)
188 | 0,1,
189 | tracks.size() >> 8, tracks.size(),
190 | deltaticks >> 8, deltaticks);
191 | for(uint32_t a=0; a> 24,
198 | tracks[a].bytes.size() >> 16,
199 | tracks[a].bytes.size() >> 8,
200 | tracks[a].bytes.size() >> 0);
201 | bytes.insert(bytes.end(), tracks[a].bytes.begin(), tracks[a].bytes.end());
202 | }
203 | tracks.clear();
204 | std::ofstream file;
205 | file.exceptions(std::ios_base::failbit);
206 | file.open(filename,std::ios::binary|std::ios::trunc);
207 | file.write(reinterpret_cast(bytes.data()),bytes.size());
208 | file.flush();
209 | }
210 | };
211 |
212 | }
213 |
214 | #endif
215 |
--------------------------------------------------------------------------------
/src/pt2.cpp:
--------------------------------------------------------------------------------
1 | #include "pt2.h"
2 | #include "midi.h"
3 | #include "experimental/json.h" //MEMORY LEAK!
4 | #include
5 | #include
6 |
7 | namespace pt2
8 | {
9 |
10 | uint8_t message::GetType() const
11 | {
12 | return (value&0xF0000000)>>28;
13 | }
14 |
15 | message::message(uint32_t length,uint8_t type)
16 | : value((length&0x0FFFFFFF)|(type<<28)) {}
17 |
18 | message::operator uint32_t() const
19 | {
20 | return (value&0x0FFFFFFF);
21 | }
22 |
23 | void part::VerifyLength()
24 | {
25 | if (tracks.empty())
26 | throw std::logic_error("No tracks");
27 | for (std::vector