rlm@488: (ns com.aurellem.run.image
rlm@486:   (:use (com.aurellem.gb saves gb-driver util constants
rlm@486:                          items vbm characters money
rlm@486:                          rlm-assembly))
rlm@492:   (:use (com.aurellem.run util music title save-corruption
rlm@486:                           bootstrap-0 bootstrap-1))
rlm@486:   (:require clojure.string)
rlm@486:   (:import [com.aurellem.gb.gb_driver SaveState])
rlm@486:   (:import java.io.File))
rlm@486: 
rlm@486: ;; want to display an image onto the screen.
rlm@486: ;; probably will be the six ponies, possibly with scrolling. 
rlm@486: 
rlm@486: ;; probably don't need hi-color mode since the images shuld be
rlm@486: ;; simple. 
rlm@486: 
rlm@486: ;; use background tiles?  they provide greater color depth than
rlm@486: ;; sprites, and can still be scrolled, so why not? 
rlm@486: 
rlm@490: ;; could also use sprites to get 3 more colors per tile for a total of
rlm@490: ;; 7 colors per tile, although not for all tiles...
rlm@486: 
rlm@486: 
rlm@486: 
rlm@490: ;; want a function to
rlm@486: 
rlm@490: ;; 1. read an image
rlm@490: ;; 2. split into a grid of 8x8 pixels
rlm@490: ;; 3. convert all RGB colors to gb-RGB colors
rlm@490: ;; 4. determine efficient color palletes for the image
rlm@490: ;; 5. output efficient assembly code to draw the image to the gb
rlm@490: ;; screen.
rlm@486: 
rlm@488: 
rlm@488: 
rlm@488: 
rlm@488: 
rlm@488: 
rlm@488: 
rlm@488: 
rlm@488: 
rlm@488: 
rlm@488: 
rlm@488: 
rlm@488: 
rlm@491: (def image-program-target 0xB000)
rlm@486: 
rlm@491: (def display-width 160)
rlm@491: (def display-height 144)
rlm@491: 
rlm@491: 
rlm@491: 
rlm@491: ;{:r :g :b }
rlm@491: 
rlm@491: (def character-data     0x8000)
rlm@491: (def character-data-end 0x97FF)
rlm@491: 
rlm@491: 
rlm@491: 
rlm@491: 
rlm@491: (def BG-data-1 0x9800)
rlm@491: 
rlm@491: (def BG-data-2 0x9C00)
rlm@491: 
rlm@491: (def OAM 0xFE00)
rlm@491: 
rlm@491: 
rlm@491: 
rlm@491: (def video-bank-select-register 0xFF4F)
rlm@491: 
rlm@492: (defn gb-rgb->bits [[r g b]]
rlm@492:   (assert (<= 0 r 31))
rlm@492:   (assert (<= 0 g 31))
rlm@492:   (assert (<= 0 b 31))
rlm@491:   [(bit-and
rlm@491:     0xFF
rlm@491:     (+
rlm@491:      r
rlm@491:      (bit-shift-left g 5)))
rlm@491:    (+
rlm@491:     (bit-shift-right g 3)
rlm@491:     (bit-shift-left  b 2))])
rlm@491: 
rlm@492: 
rlm@492: (def bg-palette-select 0xFF68)
rlm@492: (def bg-palette-data   0xFF69)
rlm@492: 
rlm@492: (def obj-palette-select 0xFF6A)
rlm@492: (def obj-palette-data   0xFF6B)
rlm@492: 
rlm@492: (def max-palettes 8)
rlm@492: 
rlm@492: (defn write-data [target data]
rlm@492:     (flatten
rlm@492:      [0x3E ;; load literal to A
rlm@492:       data
rlm@492:       0xEA ;; load A into target
rlm@493:       (reverse (disect-bytes-2 target))]))
rlm@492: 
rlm@492: (defn begin-sequential-palette-write
rlm@492:   [palette-num palette-select-address]
rlm@492:   (assert (<= 0 palette-num max-palettes))
rlm@492:   (assert
rlm@492:    (or (= palette-select-address bg-palette-select)
rlm@492:        (= palette-select-address obj-palette-select)))
rlm@492:   (let [palette-write-data
rlm@492:         (Integer/parseInt
rlm@492:          (str "1" ;; auto increment
rlm@492:               "0" ;; not used
rlm@492:               (format
rlm@492:                "%03d"
rlm@492:                (Integer/parseInt
rlm@492:                 (Integer/toBinaryString palette-num) 10))
rlm@492:               "00" ;; color num
rlm@492:               "0"  ;; H/L
rlm@492:               ) 2)]
rlm@492:     (write-data palette-select-address palette-write-data)))
rlm@492:         
rlm@492: (defn set-palettes [palette-select palette-data palettes]
rlm@492:   (assert (<= (count palettes)) max-palettes)
rlm@492:   (flatten 
rlm@492:    [(begin-sequential-palette-write 0 palette-select)
rlm@492:     (map (partial write-data palette-data)
rlm@492:          (flatten (map gb-rgb->bits palettes)))]))
rlm@492: 
rlm@491: (defn display-one-color
rlm@491:   "Displayes a single color onto the gameboy screen. input rgb in
rlm@491:    gameboy rgb."
rlm@492:   [[r g b]]
rlm@492:   ;; construct a kernel that displays a single color
rlm@494:   (let
rlm@494:       [palettes (repeat 8 [r g b])
rlm@494:        kernel-address 0xC000
rlm@494:        kernel
rlm@494:        [0xF3 ;; disable interrupts
rlm@494:         (clear-music-registers)
rlm@494:         (frame-metronome)
rlm@494:         (set-palettes obj-palette-select obj-palette-data palettes)
rlm@494:         (set-palettes bg-palette-select bg-palette-data palettes)
rlm@494:         (infinite-loop)]]
rlm@492:     (-> (set-memory-range (second (music-base))
rlm@494:                           kernel-address (flatten kernel))
rlm@492:         (PC! kernel-address))))
rlm@492: 
rlm@492: 
rlm@496: (require 'cortex.sense)
rlm@496: (import java.awt.image.BufferedImage)
rlm@492: 
rlm@496: (defn show-screenshot []
rlm@496:   (let [im (BufferedImage. 160 144 BufferedImage/TYPE_INT_RGB)
rlm@496:         pix (vec (pixels))
rlm@496:         view (cortex.sense/view-image)]
rlm@496:     (dorun (for [x (range 160) y (range 144)]
rlm@496:              (.setRGB im x y
rlm@496:                       ;0
rlm@496:                       (pix (+ x (* 160 y)))
rlm@496:                       )))
rlm@496:     (view im)))
rlm@496: 
rlm@496:      
rlm@491:   
rlm@492: (defn write-palette-color [palette-num r g b]
rlm@492:   (let [[byte-1 byte-2] (gb-rgb->bits r g b)]
rlm@491: 
rlm@491: 
rlm@492:     ))
rlm@491: 
rlm@495: