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annotate clojure/com/aurellem/run/image.clj @ 498:554883a95de0

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discovered gameboy->vga color map.
author Robert McIntyre <rlm@mit.edu>
date Mon, 11 Jun 2012 10:07:01 -0500
parents a6d060a64246
children 8b8053ccb33c
rev   line source
rlm@488 1 (ns com.aurellem.run.image
rlm@486 2 (:use (com.aurellem.gb saves gb-driver util constants
rlm@486 3 items vbm characters money
rlm@486 4 rlm-assembly))
rlm@492 5 (:use (com.aurellem.run util music title save-corruption
rlm@486 6 bootstrap-0 bootstrap-1))
rlm@486 7 (:require clojure.string)
rlm@486 8 (:import [com.aurellem.gb.gb_driver SaveState])
rlm@486 9 (:import java.io.File))
rlm@486 10
rlm@486 11 ;; want to display an image onto the screen.
rlm@486 12 ;; probably will be the six ponies, possibly with scrolling.
rlm@486 13
rlm@486 14 ;; probably don't need hi-color mode since the images shuld be
rlm@486 15 ;; simple.
rlm@486 16
rlm@486 17 ;; use background tiles? they provide greater color depth than
rlm@486 18 ;; sprites, and can still be scrolled, so why not?
rlm@486 19
rlm@490 20 ;; could also use sprites to get 3 more colors per tile for a total of
rlm@490 21 ;; 7 colors per tile, although not for all tiles...
rlm@486 22
rlm@486 23
rlm@486 24
rlm@490 25 ;; want a function to
rlm@486 26
rlm@490 27 ;; 1. read an image
rlm@490 28 ;; 2. split into a grid of 8x8 pixels
rlm@490 29 ;; 3. convert all RGB colors to gb-RGB colors
rlm@490 30 ;; 4. determine efficient color palletes for the image
rlm@490 31 ;; 5. output efficient assembly code to draw the image to the gb
rlm@490 32 ;; screen.
rlm@486 33
rlm@488 34
rlm@488 35
rlm@488 36
rlm@488 37
rlm@488 38
rlm@488 39
rlm@488 40
rlm@488 41
rlm@488 42
rlm@488 43
rlm@488 44
rlm@488 45
rlm@491 46 (def image-program-target 0xB000)
rlm@486 47
rlm@491 48 (def display-width 160)
rlm@491 49 (def display-height 144)
rlm@491 50
rlm@491 51
rlm@491 52
rlm@491 53 ;{:r :g :b }
rlm@491 54
rlm@491 55 (def character-data 0x8000)
rlm@491 56 (def character-data-end 0x97FF)
rlm@491 57
rlm@491 58
rlm@491 59
rlm@491 60
rlm@491 61 (def BG-data-1 0x9800)
rlm@491 62
rlm@491 63 (def BG-data-2 0x9C00)
rlm@491 64
rlm@491 65 (def OAM 0xFE00)
rlm@491 66
rlm@491 67
rlm@491 68
rlm@491 69 (def video-bank-select-register 0xFF4F)
rlm@491 70
rlm@492 71 (defn gb-rgb->bits [[r g b]]
rlm@492 72 (assert (<= 0 r 31))
rlm@492 73 (assert (<= 0 g 31))
rlm@492 74 (assert (<= 0 b 31))
rlm@491 75 [(bit-and
rlm@491 76 0xFF
rlm@491 77 (+
rlm@491 78 r
rlm@491 79 (bit-shift-left g 5)))
rlm@491 80 (+
rlm@491 81 (bit-shift-right g 3)
rlm@491 82 (bit-shift-left b 2))])
rlm@491 83
rlm@492 84
rlm@492 85 (def bg-palette-select 0xFF68)
rlm@492 86 (def bg-palette-data 0xFF69)
rlm@492 87
rlm@492 88 (def obj-palette-select 0xFF6A)
rlm@492 89 (def obj-palette-data 0xFF6B)
rlm@492 90
rlm@492 91 (def max-palettes 8)
rlm@492 92
rlm@492 93 (defn write-data [target data]
rlm@492 94 (flatten
rlm@492 95 [0x3E ;; load literal to A
rlm@492 96 data
rlm@492 97 0xEA ;; load A into target
rlm@493 98 (reverse (disect-bytes-2 target))]))
rlm@492 99
rlm@492 100 (defn begin-sequential-palette-write
rlm@492 101 [palette-num palette-select-address]
rlm@492 102 (assert (<= 0 palette-num max-palettes))
rlm@492 103 (assert
rlm@492 104 (or (= palette-select-address bg-palette-select)
rlm@492 105 (= palette-select-address obj-palette-select)))
rlm@492 106 (let [palette-write-data
rlm@492 107 (Integer/parseInt
rlm@492 108 (str "1" ;; auto increment
rlm@492 109 "0" ;; not used
rlm@492 110 (format
rlm@492 111 "%03d"
rlm@492 112 (Integer/parseInt
rlm@492 113 (Integer/toBinaryString palette-num) 10))
rlm@492 114 "00" ;; color num
rlm@492 115 "0" ;; H/L
rlm@492 116 ) 2)]
rlm@492 117 (write-data palette-select-address palette-write-data)))
rlm@492 118
rlm@492 119 (defn set-palettes [palette-select palette-data palettes]
rlm@492 120 (assert (<= (count palettes)) max-palettes)
rlm@492 121 (flatten
rlm@492 122 [(begin-sequential-palette-write 0 palette-select)
rlm@492 123 (map (partial write-data palette-data)
rlm@492 124 (flatten (map gb-rgb->bits palettes)))]))
rlm@492 125
rlm@491 126 (defn display-one-color
rlm@491 127 "Displayes a single color onto the gameboy screen. input rgb in
rlm@491 128 gameboy rgb."
rlm@498 129 ([state [r g b]]
rlm@498 130 ;; construct a kernel that displays a single color
rlm@498 131 (let
rlm@498 132 [palettes (repeat 8 [r g b])
rlm@498 133 kernel-address 0xC000
rlm@498 134 kernel
rlm@498 135 [0xF3 ;; disable interrupts
rlm@498 136 (clear-music-registers)
rlm@498 137 (frame-metronome)
rlm@498 138 (set-palettes obj-palette-select obj-palette-data palettes)
rlm@498 139 (set-palettes bg-palette-select bg-palette-data palettes)
rlm@498 140 (infinite-loop)]]
rlm@498 141 (-> (set-memory-range state
rlm@498 142 kernel-address (flatten kernel))
rlm@498 143 (PC! kernel-address))))
rlm@498 144 ([[r g b]]
rlm@498 145 (display-one-color @current-state [r g b])))
rlm@492 146
rlm@496 147 (require 'cortex.sense)
rlm@496 148 (import java.awt.image.BufferedImage)
rlm@492 149
rlm@496 150 (defn show-screenshot []
rlm@496 151 (let [im (BufferedImage. 160 144 BufferedImage/TYPE_INT_RGB)
rlm@496 152 pix (vec (pixels))
rlm@496 153 view (cortex.sense/view-image)]
rlm@496 154 (dorun (for [x (range 160) y (range 144)]
rlm@498 155 (.setRGB im x y (pix (+ x (* 160 y))))))
rlm@496 156 (view im)))
rlm@496 157
rlm@498 158 (defn-memo gb-rgb->vga-rgb [[r g b]]
rlm@498 159 (let [vga-rgb
rlm@498 160 (first (pixels
rlm@498 161 (run-moves
rlm@498 162 (display-one-color
rlm@498 163 (tick @current-state)
rlm@498 164 [r g b])
rlm@498 165 [[][]])))]
rlm@498 166 [(bit-shift-right (bit-and vga-rgb 0xFF0000) 16)
rlm@498 167 (bit-shift-right (bit-and vga-rgb 0xFF00) 8)
rlm@498 168 (bit-and vga-rgb 0xFF)]))
rlm@491 169
rlm@498 170 (defn generate-gb-color-map []
rlm@498 171 (set-state! (mid-game))
rlm@498 172 (let [gb-colors
rlm@498 173 (for [r (range 32)
rlm@498 174 g (range 32)
rlm@498 175 b (range 32)]
rlm@498 176 [r g b])]
rlm@498 177 (zipmap gb-colors
rlm@498 178 (map gb-rgb->vga-rgb
rlm@498 179 gb-colors))))
rlm@491 180
rlm@498 181 (import java.io.FileWriter)
rlm@491 182
rlm@498 183 (def gb-color-map-file
rlm@498 184 (File. user-home "proj/vba-clojure/gb-color-map"))
rlm@495 185
rlm@498 186 (defn write-gb-color-map! []
rlm@498 187 (binding [*out*(FileWriter. gb-color-map-file)]
rlm@498 188 (let [out-str
rlm@498 189 (.replace
rlm@498 190 (str
rlm@498 191 (into (sorted-map) (generate-gb-color-map)))
rlm@498 192 "," ",\n")]
rlm@498 193 (println out-str))))
rlm@498 194
rlm@498 195 (defn-memo gb-color-map []
rlm@498 196 (read-string (slurp gb-color-map-file)))