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annotate clojure/com/aurellem/run/music.clj @ 434:988f0fda6c93

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paramaterized music-step
author Robert McIntyre <rlm@mit.edu>
date Wed, 25 Apr 2012 01:58:44 -0500
parents 985c90ffa1fe
children 3939ad680681
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@432 232
rlm@417 233 (flatten
rlm@433 234 [0xF5 ;; push A
rlm@417 235 0xF0
rlm@432 236 0x05 ;; load current ticks from 0xF005
rlm@431 237 0xB8 ;;
rlm@417 238 0x30 ;; increment C only if last result caused carry
rlm@417 239 0x01
rlm@418 240 0x0C
rlm@417 241
rlm@417 242 0x47 ;; update sub-ticks (A->B)
rlm@417 243
rlm@417 244 0xF1 ;; pop AF, now A contains desired-ticks
rlm@417 245
rlm@417 246 0xB9 ;; compare with current ticks
rlm@417 247
rlm@417 248 ;; if desired-ticks = current ticks
rlm@417 249 ;; go to next note ; set current set ticks to 0.
rlm@417 250
rlm@417 251 0x20
rlm@434 252 (+ (count (do-message 0)) 2)
rlm@417 253
rlm@434 254 (do-message sound-base-address)
rlm@417 255
rlm@417 256 0x0E
rlm@417 257 0x00])) ;; 0->C (current-ticks)
rlm@417 258
rlm@434 259 (def music-2 0x16)
rlm@434 260
rlm@417 261 (defn music-kernel []
rlm@417 262 (flatten
rlm@432 263 [;; global initilization section
rlm@432 264 (clear-music-registers)
rlm@432 265
rlm@417 266 0x3E
rlm@418 267 0x01
rlm@417 268 0xE0
rlm@417 269 0x06 ;; set TMA to 0
rlm@417 270
rlm@417 271 0x3E
rlm@423 272 (Integer/parseInt "00000110" 2)
rlm@417 273 0xE0
rlm@423 274 0x07 ;; set TAC to 65536 Hz and activate timer
rlm@417 275
rlm@432 276 ;; local initilization section
rlm@432 277 0x21
rlm@432 278 0x00
rlm@432 279 0xD0 ;; set HL to 0xD000 == music-start
rlm@432 280 0x0E
rlm@432 281 0x00 ;; 0->C
rlm@432 282 0x06
rlm@432 283 0x00 ;; 0->B
rlm@433 284 0xAF ;; 0->A
rlm@432 285
rlm@432 286
rlm@433 287
rlm@424 288
rlm@434 289 (music-step music-2)
rlm@417 290 0x18
rlm@434 291 (->signed-8-bit (+ (- (count (music-step 0)))
rlm@417 292 -2))]))
rlm@417 293
rlm@424 294 (defn frequency-code->frequency
rlm@424 295 [code]
rlm@424 296 (assert (<= 0 code 2047))
rlm@424 297 (/ 131072 (- 2048 code)))
rlm@424 298
rlm@424 299 (defn clamp [x low high]
rlm@424 300 (cond (> x high) high
rlm@424 301 (< x low) low
rlm@424 302 true x))
rlm@424 303
rlm@424 304 (defn frequency->frequency-code
rlm@424 305 [frequency]
rlm@424 306 (clamp
rlm@424 307 (Math/round
rlm@424 308 (float
rlm@424 309 (/ (- (* 2048 frequency) 131072) frequency)))
rlm@424 310 0x00 2048))
rlm@424 311
rlm@424 312 (defn note-codes [frequency volume duration]
rlm@424 313 (assert (<= 0 volume 0xF))
rlm@430 314 (if (<= duration 0xFF)
rlm@430 315 (let [frequency-code
rlm@430 316 (frequency->frequency-code frequency)
rlm@430 317 volume&high-frequency
rlm@430 318 (+ (bit-shift-left volume 4)
rlm@430 319 (bit-shift-right frequency-code 8))
rlm@430 320 low-frequency
rlm@430 321 (bit-and 0xFF frequency-code)]
rlm@430 322 [note-code
rlm@430 323 volume&high-frequency
rlm@430 324 low-frequency
rlm@430 325 duration])
rlm@430 326 (vec
rlm@430 327 (flatten
rlm@430 328 [(note-codes frequency volume 0xFF)
rlm@430 329 (note-codes frequency volume (- duration 0xFF))]))))
rlm@430 330
rlm@424 331
rlm@427 332 (defn midi-code->frequency
rlm@427 333 [midi-code]
rlm@427 334 (* 8.1757989156
rlm@427 335 (Math/pow 2 (* (float (/ 12)) midi-code))))
rlm@427 336
rlm@427 337 ;; division == clock-pulses / quarter-note
rlm@427 338 ;; tempo == microseconds / quarter-note
rlm@427 339
rlm@427 340 ;; have: clock-pulses
rlm@427 341 ;; want: seconds
rlm@427 342
rlm@427 343
rlm@428 344 (defn silence [length]
rlm@428 345 {:frequency 1
rlm@428 346 :duration length
rlm@428 347 :volume 0})
rlm@427 348
rlm@427 349 (defn midi->mini-midi [#^File midi-file]
rlm@427 350 (let [midi-events (parse-midi midi-file)
rlm@427 351
rlm@427 352 note-on-events
rlm@427 353 (filter #(= :Note_on_c (:command %)) midi-events)
rlm@427 354 note-off-events
rlm@427 355 (filter #(= :Note_off_c (:command %)) midi-events)
rlm@427 356
rlm@427 357 channel-1-on
rlm@427 358 (sort-by :time
rlm@427 359 (filter #(= 1 (:channel (:args %)))
rlm@427 360 note-on-events))
rlm@427 361 channel-1-off
rlm@427 362 (sort-by :time
rlm@427 363 (filter #(= 1 (:channel (:args %)))
rlm@427 364 note-off-events))
rlm@427 365
rlm@427 366
rlm@427 367 tempo (:args (first (filter #(= :Tempo (:command %)) midi-events)))
rlm@427 368 division (:division
rlm@427 369 (:args (first (filter #(= :Header (:command %)) midi-events))))
rlm@428 370
rlm@428 371 notes
rlm@428 372 (map
rlm@428 373 (fn [note-on note-off]
rlm@428 374 {:frequency (midi-code->frequency (:note (:args note-on)))
rlm@428 375 :duration
rlm@428 376 (/ (* (/ tempo division)
rlm@428 377 (- (:time note-off) (:time note-on)))
rlm@428 378 1e6) ;; convert clock-pulses into seconds
rlm@428 379 :volume (int (/ (:velocity (:args note-on)) 10))
rlm@428 380 :time-stamp (/ (* (/ tempo division)
rlm@428 381 (:time note-on)) 1e6)})
rlm@428 382 channel-1-on channel-1-off)
rlm@428 383
rlm@428 384 silences
rlm@428 385 (map (fn [note-1 note-2]
rlm@428 386 (let [note-1-space (- (:time-stamp note-2)
rlm@428 387 (:time-stamp note-1))
rlm@428 388 note-1-length (:duration note-1)]
rlm@428 389 (silence (- note-1-space note-1-length))))
rlm@428 390 ;; to handle silence at the beginning.
rlm@428 391 (concat [(assoc (silence 0)
rlm@428 392 :time-stamp 0)] notes)
rlm@428 393 notes)
rlm@428 394
rlm@428 395 notes-with-silence
rlm@428 396 (filter (comp not zero? :duration) (interleave silences notes))
rlm@427 397 ]
rlm@428 398
rlm@427 399 (map
rlm@427 400 (fn [note-event]
rlm@427 401 (note-codes (:frequency note-event)
rlm@427 402 (:volume note-event)
rlm@427 403 (int (* (:duration note-event) 0x100))))
rlm@428 404 notes-with-silence)))
rlm@428 405
rlm@428 406
rlm@424 407 (def C4 (partial note-codes 261.63))
rlm@424 408 (def D4 (partial note-codes 293.66))
rlm@424 409 (def E4 (partial note-codes 329.63))
rlm@424 410 (def F4 (partial note-codes 349.23))
rlm@424 411 (def G4 (partial note-codes 392))
rlm@424 412 (def A4 (partial note-codes 440))
rlm@424 413 (def B4 (partial note-codes 493.88))
rlm@424 414 (def C5 (partial note-codes 523.3))
rlm@424 415
rlm@430 416 (def scale
rlm@430 417 (flatten
rlm@430 418 [(C4 0xF 0x40)
rlm@430 419 (D4 0xF 0x40)
rlm@430 420 (E4 0xF 0x40)
rlm@430 421 (F4 0xF 0x40)
rlm@430 422 (G4 0xF 0x40)
rlm@430 423 (A4 0xF 0x40)
rlm@430 424 (B4 0xF 0x40)
rlm@430 425 (C5 0xF 0x40)]))
rlm@424 426
rlm@418 427 (defn play-music [music-bytes]
rlm@417 428 (let [program-target 0xC000
rlm@417 429 music-target 0xD000]
rlm@417 430 (-> (set-memory-range (second (music-base))
rlm@417 431 program-target (music-kernel))
rlm@417 432 (set-memory-range music-target music-bytes)
rlm@417 433 (PC! program-target))))
rlm@417 434
rlm@417 435
rlm@417 436 (defn test-note [music-bytes]
rlm@417 437 (-> (set-memory-range (second (music-base))
rlm@417 438 0xC000 (concat (clear-music-registers)
rlm@417 439 (play-note)
rlm@417 440 (infinite-loop)))
rlm@417 441 (set-memory-range 0xD000 music-bytes)
rlm@417 442 (PC! 0xC000)
rlm@417 443 (HL! 0xD000)
rlm@417 444 ))
rlm@417 445
rlm@417 446
rlm@417 447 (defn run-program
rlm@418 448 ([program]
rlm@417 449 (let [target 0xC000]
rlm@417 450 (-> (set-memory-range (second (music-base))
rlm@417 451 target program)
rlm@417 452 (PC! target)))))
rlm@417 453
rlm@424 454 (defn test-timer []
rlm@424 455 (flatten
rlm@424 456 [0x3E
rlm@424 457 0x01
rlm@424 458 0xE0
rlm@424 459 0x06 ;; set TMA to 0
rlm@424 460
rlm@424 461 0x3E
rlm@424 462 (Integer/parseInt "00000100" 2)
rlm@424 463 0xE0
rlm@424 464 0x07 ;; set TAC to 16384 Hz and activate timer
rlm@424 465
rlm@424 466 (repeat
rlm@424 467 500
rlm@424 468 [0xF0
rlm@424 469 0x05])]))
rlm@426 470
rlm@426 471