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annotate clojure/com/aurellem/run/music.clj @ 437:20a9d5faf47c

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now I can play two voices at once!
author Robert McIntyre <rlm@mit.edu>
date Wed, 25 Apr 2012 13:09:06 -0500
parents 3171cbe077f3
children 067ea3f0d951
rev   line source
rlm@417 1 (ns com.aurellem.run.music
rlm@417 2 (:use (com.aurellem.gb saves gb-driver util constants
rlm@417 3 items vbm characters money
rlm@417 4 rlm-assembly))
rlm@417 5 (:use (com.aurellem.run util title save-corruption
rlm@417 6 bootstrap-0 bootstrap-1))
rlm@426 7 (:require clojure.string)
rlm@426 8 (:import [com.aurellem.gb.gb_driver SaveState])
rlm@426 9 (:import java.io.File))
rlm@417 10
rlm@427 11 (def third-kind
rlm@427 12 (File. "/home/r/proj/midi/third-kind.mid"))
rlm@417 13
rlm@427 14 (defn raw-midi-text [#^File midi-file]
rlm@427 15 (:out
rlm@427 16 (clojure.java.shell/sh
rlm@427 17 "midicsv"
rlm@427 18 (.getCanonicalPath midi-file)
rlm@427 19 "-")))
rlm@427 20
rlm@427 21 (def command-line #"^(\d+), (\d+), ([^,]+)(.*)$")
rlm@427 22
rlm@427 23 (defmulti parse-command :command)
rlm@427 24
rlm@427 25 (defn discard-args [command] (dissoc command :args))
rlm@427 26
rlm@427 27 (defmethod parse-command :Start_track
rlm@427 28 [command] (discard-args command))
rlm@427 29
rlm@427 30 (defmethod parse-command :End_track
rlm@427 31 [command] (discard-args command))
rlm@427 32
rlm@427 33 (defmethod parse-command :default
rlm@427 34 [command] command)
rlm@427 35
rlm@427 36 (defn parse-number-list
rlm@427 37 [number-list-str]
rlm@427 38 (map #(Integer/parseInt %)
rlm@427 39 (clojure.string/split number-list-str #", ")))
rlm@427 40
rlm@427 41 (defmethod parse-command :Tempo
rlm@427 42 [command]
rlm@427 43 (update-in command [:args] #(Integer/parseInt %)))
rlm@427 44
rlm@427 45 (defn parse-midi-note-list
rlm@427 46 [midi-note-list-str]
rlm@427 47 (let [[channel note velocity]
rlm@427 48 (parse-number-list midi-note-list-str)]
rlm@427 49 {:channel channel :note note :velocity velocity}))
rlm@427 50
rlm@427 51 (defmethod parse-command :Note_on_c
rlm@427 52 [command]
rlm@427 53 (update-in command [:args] parse-midi-note-list))
rlm@427 54
rlm@427 55 (defmethod parse-command :Note_off_c
rlm@427 56 [command]
rlm@427 57 (update-in command [:args] parse-midi-note-list))
rlm@427 58
rlm@427 59 (defmethod parse-command :Header
rlm@427 60 [command]
rlm@427 61 (let [args (:args command)
rlm@427 62 [format num-tracks division] (parse-number-list args)]
rlm@427 63 (assoc command :args
rlm@427 64 {:format format
rlm@427 65 :num-tracks num-tracks
rlm@427 66 :division division})))
rlm@427 67
rlm@427 68 (defmethod parse-command :Program_c
rlm@427 69 [command]
rlm@427 70 (let [args (:args command)
rlm@427 71 [channel program-num] (parse-number-list args)]
rlm@427 72 (assoc command :args
rlm@427 73 {:channel channel
rlm@427 74 :program-num program-num})))
rlm@427 75
rlm@427 76 (defn parse-midi [#^File midi-file]
rlm@427 77 (map
rlm@427 78 (comp parse-command
rlm@427 79 (fn [line]
rlm@427 80 (let [[[_ channel time command args]]
rlm@427 81 (re-seq command-line line)]
rlm@427 82 {:channel (Integer/parseInt channel)
rlm@427 83 :time (Integer/parseInt time)
rlm@427 84 :command (keyword command)
rlm@427 85 :args (apply str (drop 2 args))})))
rlm@427 86 (drop-last
rlm@427 87 (clojure.string/split-lines
rlm@427 88 (raw-midi-text midi-file)))))
rlm@427 89
rlm@417 90 (def music-base new-kernel)
rlm@417 91
rlm@417 92 (defn store [n address]
rlm@417 93 (flatten
rlm@417 94 [0xF5
rlm@417 95 0xE5
rlm@417 96
rlm@417 97 0x3E
rlm@417 98 n
rlm@417 99
rlm@417 100 0x21
rlm@417 101 (reverse (disect-bytes-2 address))
rlm@417 102
rlm@417 103 0x77
rlm@417 104
rlm@417 105 0xE1
rlm@417 106 0xF1]))
rlm@417 107
rlm@417 108 (defn infinite-loop []
rlm@417 109 [0x18 0xFE])
rlm@417 110
rlm@417 111 (def divider-register 0xFF04)
rlm@417 112
rlm@417 113 (defrecord Bit-Note [frequency volume duration duty])
rlm@417 114
rlm@417 115 (defn clear-music-registers []
rlm@417 116 (flatten
rlm@433 117 [(store (Integer/parseInt "00000000" 2) 0xFF10) ;; sweep
rlm@433 118 (store (Integer/parseInt "00000000" 2) 0xFF11) ;; pattern duty
rlm@433 119 (store (Integer/parseInt "00000000" 2) 0xFF12) ;; volume
rlm@433 120 (store (Integer/parseInt "00000000" 2) 0xFF13) ;; frequency-low
rlm@433 121 (store (Integer/parseInt "00000000" 2) 0xFF14) ;; frequency-high
rlm@417 122
rlm@417 123 (store (Integer/parseInt "00000000" 2) 0xFF16) ;; pattern duty 000000
rlm@417 124 (store (Integer/parseInt "00000000" 2) 0xFF17) ;; volume 0000
rlm@417 125 (store (Integer/parseInt "00000000" 2) 0xFF18) ;; frequency-low
rlm@417 126 (store (Integer/parseInt "00000000" 2) 0xFF19) ;; 00000 frequency-high
rlm@417 127
rlm@417 128 (store (Integer/parseInt "00000000" 2) 0xFF1A)
rlm@417 129 (store (Integer/parseInt "00000000" 2) 0xFF1B)
rlm@417 130 (store (Integer/parseInt "00000000" 2) 0xFF1C)
rlm@417 131 (store (Integer/parseInt "00000000" 2) 0xFF1D)
rlm@417 132 (store (Integer/parseInt "00000000" 2) 0xFF1E)
rlm@417 133
rlm@433 134 (store (Integer/parseInt "00000000" 2) 0xFF20) ;; length
rlm@433 135 (store (Integer/parseInt "00000000" 2) 0xFF21) ;; volume
rlm@433 136 (store (Integer/parseInt "00000000" 2) 0xFF22) ;; noise-frequency
rlm@433 137 (store (Integer/parseInt "00000000" 2) 0xFF23) ;; control
rlm@433 138 ]))
rlm@417 139
rlm@424 140
rlm@424 141 ;; mini-midi syntax
rlm@424 142
rlm@424 143 ;; codes
rlm@424 144 ;; note-code == 0x00
rlm@424 145 ;; change-duty-code = 0x01
rlm@424 146 ;; silence-code = 0x02
rlm@424 147
rlm@424 148 ;; silence format
rlm@424 149 ;; 2 bytes
rlm@424 150 ;; [silence-code (0x02)]
rlm@424 151 ;; [duration-8-bits]
rlm@424 152
rlm@424 153 ;; note data format
rlm@424 154 ;; 4 bytes
rlm@424 155 ;; [note-code (0x00)]
rlm@424 156 ;; [volume-4-bits 0 frequency-high-3-bits]
rlm@424 157 ;; [frequengy-low-8-bits]
rlm@424 158 ;; [duration-8-bits]
rlm@424 159
rlm@424 160 ;; change-duty-format
rlm@424 161 ;; 2 bytes
rlm@424 162 ;; [change-duty-code (0x01)]
rlm@424 163 ;; [new-duty]
rlm@424 164
rlm@425 165 (def note-code 0x00)
rlm@425 166 (def change-duty-code 0x01)
rlm@425 167 (def silence-code 0x02)
rlm@425 168
rlm@424 169 (defn do-message
rlm@424 170 "Read the message which starts at the current value of HL and do
rlm@424 171 what it says. Duration is left in A, and HL is advanced
rlm@424 172 appropraitely."
rlm@433 173 ([] (do-message 0x16))
rlm@433 174 ([sound-base-address]
rlm@433 175 (let [switch
rlm@433 176 [0x2A ;; load message code into A, increment HL
rlm@433 177
rlm@433 178 ;; switch on message
rlm@433 179 0xFE
rlm@433 180 note-code
rlm@433 181
rlm@433 182 0x20
rlm@433 183 :note-length]
rlm@424 184
rlm@433 185 play-note
rlm@433 186 [0x2A ;; load volume/frequency-high info
rlm@433 187 0xF5 ;; push A
rlm@433 188 0xE6
rlm@433 189 (Integer/parseInt "11110000" 2) ;; volume mask
rlm@433 190 0xE0
rlm@433 191 (inc sound-base-address) ;;0x17 ;; set volume
rlm@433 192 0xF1 ;; pop A
rlm@433 193 0xE6
rlm@433 194 (Integer/parseInt "00000111" 2) ;; frequency-high mask
rlm@433 195 0xE0
rlm@433 196 (+ 3 sound-base-address) ;;0x19 ;; set frequency-high
rlm@433 197
rlm@433 198 0x2A ;; load frequency low-bits
rlm@433 199 0xE0
rlm@433 200 (+ 2 sound-base-address) ;;0x18 ;; set frequency-low-bits
rlm@433 201 0x2A]] ;; load duration
rlm@433 202 (replace
rlm@433 203 {:note-length (count play-note)}
rlm@433 204 (concat switch play-note)))))
rlm@424 205
rlm@433 206 ;; (defn play-note
rlm@433 207 ;; "Play the note referenced by HL in the appropiate channel.
rlm@433 208 ;; Leaves desired-duration in A."
rlm@433 209
rlm@433 210 ;; [0x2A ;; load volume/frequency-high info
rlm@433 211 ;; 0xF5 ;; push A
rlm@433 212 ;; 0xE6
rlm@433 213 ;; (Integer/parseInt "11110000" 2) ;; volume mask
rlm@433 214 ;; 0xE0
rlm@433 215 ;; 0x17 ;; set volume
rlm@433 216 ;; 0xF1 ;; pop A
rlm@433 217 ;; 0xE6
rlm@433 218 ;; (Integer/parseInt "00000111" 2) ;; frequency-high mask
rlm@433 219 ;; 0xE0
rlm@433 220 ;; 0x19 ;; set frequency-high
rlm@417 221
rlm@433 222 ;; 0x2A ;; load frequency low-bits
rlm@433 223 ;; 0xE0
rlm@433 224 ;; 0x18 ;; set frequency-low-bits
rlm@417 225
rlm@433 226 ;; 0x2A ;; load duration
rlm@433 227 ;; ])
rlm@417 228
rlm@434 229 (defn music-step [sound-base-address]
rlm@432 230 ;; C == current-ticks
rlm@432 231 ;; A == desired-ticks
rlm@435 232
rlm@435 233 (flatten
rlm@435 234 [;; restore variables from stack
rlm@435 235 0xE1 ;; pop HL
rlm@435 236 0xC1 ;; pop CB
rlm@435 237 0xF1 ;; pop AF
rlm@432 238
rlm@435 239
rlm@435 240 0xF5 ;; push A
rlm@417 241 0xF0
rlm@432 242 0x05 ;; load current ticks from 0xF005
rlm@431 243 0xB8 ;;
rlm@417 244 0x30 ;; increment C only if last result caused carry
rlm@417 245 0x01
rlm@418 246 0x0C
rlm@417 247
rlm@417 248 0x47 ;; update sub-ticks (A->B)
rlm@417 249
rlm@417 250 0xF1 ;; pop AF, now A contains desired-ticks
rlm@417 251
rlm@417 252 0xB9 ;; compare with current ticks
rlm@417 253
rlm@417 254 ;; if desired-ticks = current ticks
rlm@417 255 ;; go to next note ; set current set ticks to 0.
rlm@417 256
rlm@417 257 0x20
rlm@434 258 (+ (count (do-message 0)) 2)
rlm@417 259
rlm@434 260 (do-message sound-base-address)
rlm@417 261
rlm@417 262 0x0E
rlm@435 263 0x00 ;; 0->C (current-ticks)
rlm@417 264
rlm@435 265 ;; save variables to stack
rlm@435 266 0xF5 ;; push AF
rlm@435 267 0xC5 ;; push CB
rlm@435 268 0xE5 ;; push HL
rlm@435 269
rlm@435 270
rlm@435 271 ]))
rlm@435 272
rlm@435 273 (def music-1 0x11)
rlm@434 274 (def music-2 0x16)
rlm@434 275
rlm@417 276 (defn music-kernel []
rlm@417 277 (flatten
rlm@432 278 [;; global initilization section
rlm@432 279 (clear-music-registers)
rlm@432 280
rlm@417 281 0x3E
rlm@418 282 0x01
rlm@417 283 0xE0
rlm@417 284 0x06 ;; set TMA to 0
rlm@417 285
rlm@417 286 0x3E
rlm@423 287 (Integer/parseInt "00000110" 2)
rlm@417 288 0xE0
rlm@423 289 0x07 ;; set TAC to 65536 Hz and activate timer
rlm@417 290
rlm@435 291 ;; initialize frame 1
rlm@432 292 0x21
rlm@432 293 0x00
rlm@437 294 0xA0 ;; set HL to 0xA000 == music-start 1
rlm@432 295 0x0E
rlm@432 296 0x00 ;; 0->C
rlm@432 297 0x06
rlm@432 298 0x00 ;; 0->B
rlm@435 299
rlm@433 300 0xAF ;; 0->A
rlm@432 301
rlm@435 302 0xF5 ;; push AF
rlm@435 303 0xC5 ;; push CB
rlm@435 304 0xE5 ;; push HL
rlm@432 305
rlm@435 306 ;; initialize frame 2
rlm@436 307 0x21
rlm@436 308 0x00
rlm@437 309 0xB0 ;; set HL to 0xB000 == music-start 2
rlm@436 310
rlm@436 311 0xF5 ;; push AF
rlm@436 312 0xC5 ;; push CB
rlm@436 313 0xE5 ;; push HL
rlm@436 314
rlm@436 315
rlm@437 316 ;; main music loop
rlm@437 317
rlm@437 318 0xE8 ;; SP + 6; activate frame 1
rlm@437 319 6
rlm@437 320 (music-step music-1)
rlm@437 321 ;;(repeat (count (music-step music-1)) 0x00)
rlm@435 322
rlm@437 323 0xE8 ;; SP - 6; activate frame 2
rlm@437 324 (->signed-8-bit -6)
rlm@437 325 ;;(repeat (count (music-step music-2)) 0x00)
rlm@437 326 (music-step music-2)
rlm@433 327
rlm@424 328
rlm@417 329 0x18
rlm@437 330 (->signed-8-bit (+
rlm@437 331 ;; two music-steps
rlm@437 332 (- (* 2 (count (music-step 0))))
rlm@437 333 -2 ;; this jump instruction
rlm@437 334 -2 ;; activate frame 1
rlm@437 335 -2 ;; activate frame 2
rlm@437 336 ))]))
rlm@417 337
rlm@424 338 (defn frequency-code->frequency
rlm@424 339 [code]
rlm@424 340 (assert (<= 0 code 2047))
rlm@424 341 (/ 131072 (- 2048 code)))
rlm@424 342
rlm@424 343 (defn clamp [x low high]
rlm@424 344 (cond (> x high) high
rlm@424 345 (< x low) low
rlm@424 346 true x))
rlm@424 347
rlm@424 348 (defn frequency->frequency-code
rlm@424 349 [frequency]
rlm@424 350 (clamp
rlm@424 351 (Math/round
rlm@424 352 (float
rlm@424 353 (/ (- (* 2048 frequency) 131072) frequency)))
rlm@424 354 0x00 2048))
rlm@424 355
rlm@424 356 (defn note-codes [frequency volume duration]
rlm@424 357 (assert (<= 0 volume 0xF))
rlm@430 358 (if (<= duration 0xFF)
rlm@430 359 (let [frequency-code
rlm@430 360 (frequency->frequency-code frequency)
rlm@430 361 volume&high-frequency
rlm@430 362 (+ (bit-shift-left volume 4)
rlm@430 363 (bit-shift-right frequency-code 8))
rlm@430 364 low-frequency
rlm@430 365 (bit-and 0xFF frequency-code)]
rlm@430 366 [note-code
rlm@430 367 volume&high-frequency
rlm@430 368 low-frequency
rlm@430 369 duration])
rlm@430 370 (vec
rlm@430 371 (flatten
rlm@430 372 [(note-codes frequency volume 0xFF)
rlm@430 373 (note-codes frequency volume (- duration 0xFF))]))))
rlm@430 374
rlm@424 375
rlm@427 376 (defn midi-code->frequency
rlm@427 377 [midi-code]
rlm@427 378 (* 8.1757989156
rlm@427 379 (Math/pow 2 (* (float (/ 12)) midi-code))))
rlm@427 380
rlm@427 381 ;; division == clock-pulses / quarter-note
rlm@427 382 ;; tempo == microseconds / quarter-note
rlm@427 383
rlm@427 384 ;; have: clock-pulses
rlm@427 385 ;; want: seconds
rlm@427 386
rlm@427 387
rlm@428 388 (defn silence [length]
rlm@428 389 {:frequency 1
rlm@428 390 :duration length
rlm@428 391 :volume 0})
rlm@427 392
rlm@427 393 (defn midi->mini-midi [#^File midi-file]
rlm@427 394 (let [midi-events (parse-midi midi-file)
rlm@427 395
rlm@427 396 note-on-events
rlm@427 397 (filter #(= :Note_on_c (:command %)) midi-events)
rlm@427 398 note-off-events
rlm@427 399 (filter #(= :Note_off_c (:command %)) midi-events)
rlm@427 400
rlm@427 401 channel-1-on
rlm@427 402 (sort-by :time
rlm@427 403 (filter #(= 1 (:channel (:args %)))
rlm@427 404 note-on-events))
rlm@427 405 channel-1-off
rlm@427 406 (sort-by :time
rlm@427 407 (filter #(= 1 (:channel (:args %)))
rlm@427 408 note-off-events))
rlm@427 409
rlm@427 410
rlm@427 411 tempo (:args (first (filter #(= :Tempo (:command %)) midi-events)))
rlm@427 412 division (:division
rlm@427 413 (:args (first (filter #(= :Header (:command %)) midi-events))))
rlm@428 414
rlm@428 415 notes
rlm@428 416 (map
rlm@428 417 (fn [note-on note-off]
rlm@428 418 {:frequency (midi-code->frequency (:note (:args note-on)))
rlm@428 419 :duration
rlm@428 420 (/ (* (/ tempo division)
rlm@428 421 (- (:time note-off) (:time note-on)))
rlm@428 422 1e6) ;; convert clock-pulses into seconds
rlm@428 423 :volume (int (/ (:velocity (:args note-on)) 10))
rlm@428 424 :time-stamp (/ (* (/ tempo division)
rlm@428 425 (:time note-on)) 1e6)})
rlm@428 426 channel-1-on channel-1-off)
rlm@428 427
rlm@428 428 silences
rlm@428 429 (map (fn [note-1 note-2]
rlm@428 430 (let [note-1-space (- (:time-stamp note-2)
rlm@428 431 (:time-stamp note-1))
rlm@428 432 note-1-length (:duration note-1)]
rlm@428 433 (silence (- note-1-space note-1-length))))
rlm@428 434 ;; to handle silence at the beginning.
rlm@428 435 (concat [(assoc (silence 0)
rlm@428 436 :time-stamp 0)] notes)
rlm@428 437 notes)
rlm@428 438
rlm@428 439 notes-with-silence
rlm@428 440 (filter (comp not zero? :duration) (interleave silences notes))
rlm@427 441 ]
rlm@428 442
rlm@427 443 (map
rlm@427 444 (fn [note-event]
rlm@427 445 (note-codes (:frequency note-event)
rlm@427 446 (:volume note-event)
rlm@427 447 (int (* (:duration note-event) 0x100))))
rlm@428 448 notes-with-silence)))
rlm@428 449
rlm@428 450
rlm@424 451 (def C4 (partial note-codes 261.63))
rlm@424 452 (def D4 (partial note-codes 293.66))
rlm@424 453 (def E4 (partial note-codes 329.63))
rlm@424 454 (def F4 (partial note-codes 349.23))
rlm@424 455 (def G4 (partial note-codes 392))
rlm@424 456 (def A4 (partial note-codes 440))
rlm@424 457 (def B4 (partial note-codes 493.88))
rlm@424 458 (def C5 (partial note-codes 523.3))
rlm@424 459
rlm@430 460 (def scale
rlm@430 461 (flatten
rlm@430 462 [(C4 0xF 0x40)
rlm@430 463 (D4 0xF 0x40)
rlm@430 464 (E4 0xF 0x40)
rlm@430 465 (F4 0xF 0x40)
rlm@430 466 (G4 0xF 0x40)
rlm@430 467 (A4 0xF 0x40)
rlm@430 468 (B4 0xF 0x40)
rlm@430 469 (C5 0xF 0x40)]))
rlm@424 470
rlm@418 471 (defn play-music [music-bytes]
rlm@417 472 (let [program-target 0xC000
rlm@437 473 music-target 0xA000]
rlm@417 474 (-> (set-memory-range (second (music-base))
rlm@417 475 program-target (music-kernel))
rlm@417 476 (set-memory-range music-target music-bytes)
rlm@417 477 (PC! program-target))))
rlm@417 478
rlm@417 479
rlm@437 480 ;; (defn test-note [music-bytes]
rlm@437 481 ;; (-> (set-memory-range (second (music-base))
rlm@437 482 ;; 0xC000 (concat (clear-music-registers)
rlm@437 483 ;; (play-note)
rlm@437 484 ;; (infinite-loop)))
rlm@437 485 ;; (set-memory-range 0xD000 music-bytes)
rlm@437 486 ;; (PC! 0xC000)
rlm@437 487 ;; (HL! 0xD000)
rlm@437 488 ;; ))
rlm@417 489
rlm@417 490
rlm@417 491 (defn run-program
rlm@418 492 ([program]
rlm@417 493 (let [target 0xC000]
rlm@417 494 (-> (set-memory-range (second (music-base))
rlm@417 495 target program)
rlm@417 496 (PC! target)))))
rlm@417 497
rlm@424 498 (defn test-timer []
rlm@424 499 (flatten
rlm@424 500 [0x3E
rlm@424 501 0x01
rlm@424 502 0xE0
rlm@424 503 0x06 ;; set TMA to 0
rlm@424 504
rlm@424 505 0x3E
rlm@424 506 (Integer/parseInt "00000100" 2)
rlm@424 507 0xE0
rlm@424 508 0x07 ;; set TAC to 16384 Hz and activate timer
rlm@424 509
rlm@424 510 (repeat
rlm@424 511 500
rlm@424 512 [0xF0
rlm@424 513 0x05])]))
rlm@426 514
rlm@426 515