Rev 538 | Rev 1030 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 538 | mauro | 1 | /* |
| 2 | * Project: S.Ha.R.K. |
||
| 3 | * |
||
| 4 | * Coordinators: |
||
| 5 | * Giorgio Buttazzo <giorgio@sssup.it> |
||
| 6 | * Paolo Gai <pj@gandalf.sssup.it> |
||
| 7 | * |
||
| 8 | * Authors : |
||
| 9 | * Paolo Gai <pj@gandalf.sssup.it> |
||
| 10 | * Massimiliano Giorgi <massy@gandalf.sssup.it> |
||
| 11 | * Luca Abeni <luca@gandalf.sssup.it> |
||
| 12 | * (see the web pages for full authors list) |
||
| 13 | * |
||
| 14 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
||
| 15 | * |
||
| 16 | * http://www.sssup.it |
||
| 17 | * http://retis.sssup.it |
||
| 18 | * http://shark.sssup.it |
||
| 19 | */ |
||
| 20 | |||
| 21 | /*---------------* |
||
| 22 | * GRX Management* |
||
| 23 | *---------------*/ |
||
| 24 | |||
| 25 | #include <kernel/kern.h> |
||
| 26 | //#include <drivers/glib.h> |
||
| 27 | |||
| 28 | #include "../include/drivers/shark_input26.h" |
||
| 29 | #include "../include/drivers/shark_mouse26.h" |
||
| 30 | |||
| 31 | /* External functions */ |
||
| 32 | extern void grx_getimage(WORD x1, WORD y1, WORD x2, WORD y2, BYTE *buf); |
||
| 33 | extern void grx_putimage(WORD x1, WORD y1, WORD x2, WORD y2, BYTE *buf); |
||
| 34 | extern int _mouse_cursor_init(int cmd, void(*my_show_cursor)(int, int), void(*my_restore_cursor)(int, int)); |
||
| 35 | extern void _mouse_cursor_getposition(int *xptr, int *yptr); |
||
| 36 | |||
| 37 | extern int autocursormode; |
||
| 38 | |||
| 39 | static BYTE left_ptr_bits[] = { 0x00, 0x00, 0x08, 0x00, 0x18, 0x00, 0x38, 0x00, |
||
| 40 | 0x78, 0x00, 0xf8, 0x00, 0xf8, 0x01, 0xf8, 0x03, |
||
| 41 | 0xf8, 0x07, 0xf8, 0x00, 0xd8, 0x00, 0x88, 0x01, |
||
| 42 | 0x80, 0x01, 0x00, 0x03, 0x00, 0x03, 0x00, 0x00 }; |
||
| 43 | |||
| 44 | |||
| 45 | static BYTE left_ptrmsk_bits[] = { 0x0c, 0x00, 0x1c, 0x00, 0x3c, 0x00, 0x7c, 0x00, |
||
| 46 | 0xfc, 0x00, 0xfc, 0x01, 0xfc, 0x03, 0xfc, 0x07, |
||
| 47 | 0xfc, 0x0f, 0xfc, 0x0f, 0xfc, 0x01, 0xdc, 0x03, |
||
| 48 | 0xcc, 0x03, 0x80, 0x07, 0x80, 0x07, 0x00, 0x03 }; |
||
| 49 | |||
| 50 | /* dimensions (16x16) */ |
||
| 51 | #define SHAPE_DX MOUSESHAPEDX |
||
| 52 | #define SHAPE_DY MOUSESHAPEDY |
||
| 53 | |||
| 54 | /* shape hot spot (3,1) */ |
||
| 55 | #define HOTSPOT_X MOUSEHOTSPOTX |
||
| 56 | #define HOTSPOT_Y MOUSEHOTSPOTY |
||
| 57 | |||
| 58 | /* cursor shape */ |
||
| 59 | static BYTE shape[SHAPE_DX * SHAPE_DY * 4]; |
||
| 60 | /* cursor mask */ |
||
| 61 | static BYTE mask[SHAPE_DX * SHAPE_DY * 4]; |
||
| 62 | |||
| 63 | /* old memory buffer */ |
||
| 64 | static BYTE saved_shape[SHAPE_DX * SHAPE_DY * 4]; |
||
| 65 | /* new memory buffer */ |
||
| 66 | static BYTE new_shape[SHAPE_DX * SHAPE_DY * 4]; |
||
| 67 | |||
| 68 | static BYTE *saved_shapeptr = (void*)DEFAULT; |
||
| 69 | static BYTE *saved_maskptr = (void*)DEFAULT; |
||
| 70 | |||
| 71 | static int bpp; // bytes per pixel |
||
| 72 | |||
| 73 | /* if called with NULL -> retrieve next bit of a bits-stream |
||
| 74 | * else -> initialize the bit stream |
||
| 75 | */ |
||
| 76 | static int get_bit(BYTE *p) |
||
| 77 | { |
||
| 78 | static BYTE *ptr; |
||
| 79 | static BYTE val; |
||
| 80 | static int c; |
||
| 81 | |||
| 82 | if (p != NULL) { |
||
| 83 | ptr = p; |
||
| 84 | val = 0; |
||
| 85 | c = 8; |
||
| 86 | return 0; |
||
| 87 | } |
||
| 88 | |||
| 89 | if (c==8) { |
||
| 90 | c = 0; |
||
| 91 | val = *ptr; |
||
| 92 | ptr++; |
||
| 93 | } else |
||
| 94 | val >>= 1; |
||
| 95 | |||
| 96 | c++; |
||
| 97 | return val&1; |
||
| 98 | } |
||
| 99 | |||
| 100 | /* show grx cursor */ |
||
| 101 | static void show_grx_cursor(int x, int y) |
||
| 102 | { |
||
| 103 | int i; |
||
| 104 | |||
| 105 | x -= HOTSPOT_X - 1; |
||
| 106 | y -= HOTSPOT_Y - 1; |
||
| 107 | grx_getimage(x, y, x+SHAPE_DX-1, y+SHAPE_DY-1, saved_shape); |
||
| 108 | for(i=0; i < SHAPE_DX*SHAPE_DY*bpp/4; i++) |
||
| 109 | ((DWORD*)new_shape)[i] = ( ((DWORD*)saved_shape)[i] & ((DWORD*)mask)[i] ) | ((DWORD*)shape)[i]; |
||
| 110 | grx_putimage(x, y, x+SHAPE_DX-1, y+SHAPE_DY-1, new_shape); |
||
| 111 | } |
||
| 112 | |||
| 113 | /* restore grx cursor */ |
||
| 114 | static void restore_grx_cursor(int x, int y) |
||
| 115 | { |
||
| 116 | x -= HOTSPOT_X - 1; |
||
| 117 | y -= HOTSPOT_Y - 1; |
||
| 118 | grx_putimage(x, y, x+SHAPE_DX-1, y+SHAPE_DY-1, saved_shape); |
||
| 119 | } |
||
| 120 | |||
| 121 | int mouse_grxcursor(int cmd, int bpp) |
||
| 122 | { |
||
| 123 | mouse_grxshape(saved_shapeptr, saved_maskptr, bpp); |
||
| 124 | return _mouse_cursor_init(cmd|GRXCURSOR, show_grx_cursor, restore_grx_cursor); |
||
| 125 | } |
||
| 126 | |||
| 127 | /* compute the shape and mask array */ |
||
| 128 | int mouse_grxshape(BYTE *shapeptr, BYTE *maskptr, int bpp_in) |
||
| 129 | { |
||
| 130 | BYTE b; |
||
| 131 | int pc; |
||
| 132 | int i,j; |
||
| 133 | int saved_x, saved_y; |
||
| 134 | int cond; |
||
| 135 | /*int result; |
||
| 136 | grx_vga_modeinfo info;*/ |
||
| 137 | |||
| 138 | /* Autocalculate bpp */ |
||
| 139 | /*result = gd_getmodeinfo(&info); |
||
| 140 | if (result == -1) |
||
| 141 | return -1; |
||
| 142 | bpp = info.bytesperpixel;*/ |
||
| 143 | |||
| 144 | cond = ( ((autocursormode & STATUSMASK) == ENABLE) && ((autocursormode & GRXCURSOR) == GRXCURSOR) ); |
||
| 145 | |||
| 146 | if (cond) { |
||
| 147 | _mouse_cursor_getposition(&saved_x,&saved_y); |
||
| 148 | restore_grx_cursor(saved_x,saved_y); |
||
| 149 | } |
||
| 150 | |||
| 151 | if (bpp_in != -1) |
||
| 152 | bpp = bpp_in; |
||
| 153 | |||
| 154 | if (shapeptr == (void*)DEFAULT) { |
||
| 155 | shapeptr = left_ptr_bits; |
||
| 156 | pc = 0; |
||
| 157 | get_bit(left_ptr_bits); |
||
| 158 | for (i = 0; i < SHAPE_DX*SHAPE_DY; i++) { |
||
| 159 | b = get_bit(NULL) ? 255 : 0; |
||
| 160 | for (j = 0; j < bpp; j++) |
||
| 161 | shape[pc++] = b; |
||
| 162 | } |
||
| 163 | } else { |
||
| 164 | memcpy(shape, shapeptr, SHAPE_DX*SHAPE_DY*bpp); |
||
| 165 | saved_shapeptr = shapeptr; |
||
| 166 | } |
||
| 167 | |||
| 168 | if (maskptr == (void*)DEFAULT) { |
||
| 169 | maskptr = left_ptrmsk_bits; |
||
| 170 | pc = 0; |
||
| 171 | get_bit(left_ptrmsk_bits); |
||
| 172 | for (i = 0; i < SHAPE_DX*SHAPE_DY; i++) { |
||
| 173 | b=get_bit(NULL)?0:255; |
||
| 174 | for (j = 0; j < bpp; j++) |
||
| 175 | mask[pc++] = b; |
||
| 176 | } |
||
| 177 | } else { |
||
| 178 | memcpy(mask, maskptr, SHAPE_DX*SHAPE_DY*bpp); |
||
| 179 | saved_maskptr = maskptr; |
||
| 180 | } |
||
| 181 | |||
| 182 | if (cond) |
||
| 183 | show_grx_cursor(saved_x,saved_y); |
||
| 184 | |||
| 185 | return 0; |
||
| 186 | } |