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@486:   (:use (com.aurellem.run util 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@486: 
rlm@486: ;; First of all, RGB colors in an image are not the same as those in a
rlm@486: ;; GameBoy, so I need to convert them.  Fortunately, this code is
rlm@486: ;; already written for me in this C-code from the public domain
rlm@486: ;; hi-color converter by Glen Cook, Jeff Frohwein, and Rob Jones.
rlm@486: 
rlm@486: ;; the code snipped itself is by Brett Bibby and is translated here
rlm@486: ;; from C into clojure.
rlm@486: 
rlm@486: 
rlm@488: ;; This section of code is used to convert an RGB (pc) triplet into
rlm@488: ;; a RGB (gameboy) triplet. This section of code was kindly donated
rlm@488: ;; by Brett Bibby (GameBrains).
rlm@486: 
rlm@488: ;; BYTE intensity[32] = {
rlm@488: ;;   0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x5e, 0x6c, 0x7a, 0x88, 0x94,
rlm@488: ;;   0xa0, 0xae, 0xb7, 0xbf, 0xc6, 0xce, 0xd3, 0xd9, 0xdf, 0xe3, 0xe7,
rlm@488: ;;   0xeb, 0xef, 0xf3, 0xf6, 0xf9, 0xfb, 0xfd, 0xfe, 0xff, 0xff };
rlm@488: 
rlm@488: ;; unsigned char influence[3][3] = 
rlm@488: ;;   {
rlm@488: ;;     {16,4,4},
rlm@488: ;;     {8,16,8},
rlm@488: ;;     {0,8,16}
rlm@488: ;;   };
rlm@488: 
rlm@488: ;; RGBQUAD translate(BYTE rgb[3])
rlm@488: ;; {
rlm@488: ;;   RGBQUAD color;
rlm@488: ;;   BYTE	tmp[3];
rlm@488: ;;   BYTE	m[3][3];
rlm@488: ;;   BYTE	i,j;
rlm@488: 
rlm@488: ;;   for (i=0;i<3;i++)
rlm@488: ;;     for (j=0;j<3;j++)
rlm@488: ;;       m[i][j] = (intensity[rgb[i]>>3]*influence[i][j]) >> 5;
rlm@488: 
rlm@488: ;;   for (i=0;i<3;i++)
rlm@488: ;;     {
rlm@488: ;;       if (m[0][i]>m[1][i])
rlm@488: ;; 	{
rlm@488: ;; 	  j=m[0][i]; 
rlm@488: ;; 	  m[0][i]=m[1][i]; 
rlm@488: ;; 	  m[1][i]=j;
rlm@488: ;; 	}
rlm@488: 
rlm@488: ;;       if (m[1][i]>m[2][i])
rlm@488: ;; 	{
rlm@488: ;; 	  j=m[1][i]; 
rlm@488: ;; 	  m[1][i]=m[2][i]; 
rlm@488: ;; 	  m[2][i]=j;
rlm@488: ;; 	}
rlm@488: 
rlm@488: ;;       if (m[0][i]>m[1][i])
rlm@488: ;; 	{
rlm@488: ;; 	  j=m[0][i]; 
rlm@488: ;; 	  m[0][i]=m[1][i]; 
rlm@488: ;; 	  m[1][i]=j;
rlm@488: ;; 	}
rlm@488: 
rlm@488: ;;       tmp[i]=(((m[0][i]+m[1][i]*2+m[2][i]*4)*5) >> 4)+32;
rlm@488: ;;     }
rlm@488: 
rlm@488: ;;   color.rgbRed	= tmp[0];
rlm@488: ;;   color.rgbGreen	= tmp[1];
rlm@488: ;;   color.rgbBlue	= tmp[2];
rlm@488: 
rlm@488: ;;   return color;
rlm@488: ;; }
rlm@488: 
rlm@488: 
rlm@488: (def intensity
rlm@488:   [0x00 0x10 0x20 0x30 0x40 0x50 0x5e 0x6c 0x7a 0x88 0x94
rlm@488:    0xa0 0xae 0xb7 0xbf 0xc6 0xce 0xd3 0xd9 0xdf 0xe3 0xe7
rlm@488:    0xeb 0xef 0xf3 0xf6 0xf9 0xfb 0xfd 0xfe 0xff 0xff])
rlm@488: 
rlm@488: (def influence
rlm@488:   [[16 4 4]
rlm@488:    [8 16 8]
rlm@488:    [0 8 16]])
rlm@486: 
rlm@486: (defn rgb->gb-rb [[r g b]]
rlm@488:   (let [color-matrix
rlm@488:         (map
rlm@488:          (fn [color-row]
rlm@488:            (map
rlm@488:             (fn [color]
rlm@488:               (bit-shift-right
rlm@488:                (* (intensity (bit-shift-right r 3))
rlm@488:                   color) 5)))))]))
rlm@488:                   
rlm@488: