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| Rev | Author | Line No. | Line |
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| 538 | mauro | 1 | /* |
| 2 | * Project: S.Ha.R.K. |
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| 3 | * |
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| 4 | * Coordinators: |
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| 5 | * Giorgio Buttazzo <giorgio@sssup.it> |
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| 6 | * Paolo Gai <pj@gandalf.sssup.it> |
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| 7 | * |
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| 8 | * Authors : |
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| 9 | * Paolo Gai <pj@gandalf.sssup.it> |
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| 10 | * Massimiliano Giorgi <massy@gandalf.sssup.it> |
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| 11 | * Luca Abeni <luca@gandalf.sssup.it> |
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| 1030 | tullio | 12 | * Tullio Facchinetti <tullio.facchinetti@unipv.it> |
| 538 | mauro | 13 | * (see the web pages for full authors list) |
| 14 | * |
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| 15 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
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| 16 | * |
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| 17 | * http://www.sssup.it |
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| 18 | * http://retis.sssup.it |
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| 19 | * http://shark.sssup.it |
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| 20 | */ |
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| 21 | |||
| 1063 | tullio | 22 | /* |
| 23 | * This program is free software; you can redistribute it and/or modify |
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| 24 | * it under the terms of the GNU General Public License as published by |
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| 25 | * the Free Software Foundation; either version 2 of the License, or |
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| 26 | * (at your option) any later version. |
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| 27 | * |
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| 28 | * This program is distributed in the hope that it will be useful, |
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| 29 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 30 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 31 | * GNU General Public License for more details. |
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| 32 | * |
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| 33 | * You should have received a copy of the GNU General Public License |
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| 34 | * along with this program; if not, write to the Free Software |
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| 35 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 36 | * |
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| 37 | */ |
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| 38 | |||
| 538 | mauro | 39 | /*---------------* |
| 40 | * GRX Management* |
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| 41 | *---------------*/ |
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| 42 | |||
| 43 | #include <kernel/kern.h> |
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| 44 | //#include <drivers/glib.h> |
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| 45 | |||
| 46 | #include "../include/drivers/shark_input26.h" |
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| 47 | #include "../include/drivers/shark_mouse26.h" |
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| 48 | |||
| 49 | /* External functions */ |
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| 1030 | tullio | 50 | extern void grx_getimage(WORD x1, WORD y1, WORD x2, WORD y2, WORD *buf); // Tool |
| 51 | extern void grx_putimage(WORD x1, WORD y1, WORD x2, WORD y2, WORD *buf); // Tool |
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| 538 | mauro | 52 | extern int _mouse_cursor_init(int cmd, void(*my_show_cursor)(int, int), void(*my_restore_cursor)(int, int)); |
| 53 | extern void _mouse_cursor_getposition(int *xptr, int *yptr); |
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| 54 | |||
| 55 | extern int autocursormode; |
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| 56 | |||
| 57 | static BYTE left_ptr_bits[] = { 0x00, 0x00, 0x08, 0x00, 0x18, 0x00, 0x38, 0x00, |
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| 58 | 0x78, 0x00, 0xf8, 0x00, 0xf8, 0x01, 0xf8, 0x03, |
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| 59 | 0xf8, 0x07, 0xf8, 0x00, 0xd8, 0x00, 0x88, 0x01, |
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| 60 | 0x80, 0x01, 0x00, 0x03, 0x00, 0x03, 0x00, 0x00 }; |
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| 61 | |||
| 62 | |||
| 63 | static BYTE left_ptrmsk_bits[] = { 0x0c, 0x00, 0x1c, 0x00, 0x3c, 0x00, 0x7c, 0x00, |
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| 64 | 0xfc, 0x00, 0xfc, 0x01, 0xfc, 0x03, 0xfc, 0x07, |
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| 65 | 0xfc, 0x0f, 0xfc, 0x0f, 0xfc, 0x01, 0xdc, 0x03, |
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| 66 | 0xcc, 0x03, 0x80, 0x07, 0x80, 0x07, 0x00, 0x03 }; |
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| 67 | |||
| 68 | /* dimensions (16x16) */ |
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| 69 | #define SHAPE_DX MOUSESHAPEDX |
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| 70 | #define SHAPE_DY MOUSESHAPEDY |
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| 71 | |||
| 72 | /* shape hot spot (3,1) */ |
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| 73 | #define HOTSPOT_X MOUSEHOTSPOTX |
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| 74 | #define HOTSPOT_Y MOUSEHOTSPOTY |
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| 75 | |||
| 76 | /* cursor shape */ |
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| 77 | static BYTE shape[SHAPE_DX * SHAPE_DY * 4]; |
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| 78 | /* cursor mask */ |
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| 79 | static BYTE mask[SHAPE_DX * SHAPE_DY * 4]; |
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| 80 | |||
| 81 | /* old memory buffer */ |
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| 82 | static BYTE saved_shape[SHAPE_DX * SHAPE_DY * 4]; |
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| 83 | /* new memory buffer */ |
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| 84 | static BYTE new_shape[SHAPE_DX * SHAPE_DY * 4]; |
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| 85 | |||
| 86 | static BYTE *saved_shapeptr = (void*)DEFAULT; |
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| 87 | static BYTE *saved_maskptr = (void*)DEFAULT; |
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| 88 | |||
| 89 | static int bpp; // bytes per pixel |
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| 90 | |||
| 91 | /* if called with NULL -> retrieve next bit of a bits-stream |
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| 92 | * else -> initialize the bit stream |
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| 93 | */ |
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| 94 | static int get_bit(BYTE *p) |
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| 95 | { |
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| 96 | static BYTE *ptr; |
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| 97 | static BYTE val; |
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| 98 | static int c; |
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| 99 | |||
| 100 | if (p != NULL) { |
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| 101 | ptr = p; |
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| 102 | val = 0; |
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| 103 | c = 8; |
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| 104 | return 0; |
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| 105 | } |
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| 106 | |||
| 107 | if (c==8) { |
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| 108 | c = 0; |
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| 109 | val = *ptr; |
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| 110 | ptr++; |
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| 111 | } else |
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| 112 | val >>= 1; |
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| 113 | |||
| 114 | c++; |
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| 115 | return val&1; |
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| 116 | } |
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| 117 | |||
| 118 | /* show grx cursor */ |
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| 119 | static void show_grx_cursor(int x, int y) |
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| 120 | { |
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| 121 | int i; |
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| 122 | |||
| 123 | x -= HOTSPOT_X - 1; |
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| 124 | y -= HOTSPOT_Y - 1; |
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| 125 | grx_getimage(x, y, x+SHAPE_DX-1, y+SHAPE_DY-1, saved_shape); |
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| 126 | for(i=0; i < SHAPE_DX*SHAPE_DY*bpp/4; i++) |
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| 127 | ((DWORD*)new_shape)[i] = ( ((DWORD*)saved_shape)[i] & ((DWORD*)mask)[i] ) | ((DWORD*)shape)[i]; |
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| 128 | grx_putimage(x, y, x+SHAPE_DX-1, y+SHAPE_DY-1, new_shape); |
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| 129 | } |
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| 130 | |||
| 131 | /* restore grx cursor */ |
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| 132 | static void restore_grx_cursor(int x, int y) |
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| 133 | { |
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| 134 | x -= HOTSPOT_X - 1; |
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| 135 | y -= HOTSPOT_Y - 1; |
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| 136 | grx_putimage(x, y, x+SHAPE_DX-1, y+SHAPE_DY-1, saved_shape); |
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| 137 | } |
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| 138 | |||
| 139 | int mouse_grxcursor(int cmd, int bpp) |
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| 140 | { |
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| 141 | mouse_grxshape(saved_shapeptr, saved_maskptr, bpp); |
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| 142 | return _mouse_cursor_init(cmd|GRXCURSOR, show_grx_cursor, restore_grx_cursor); |
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| 143 | } |
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| 144 | |||
| 145 | /* compute the shape and mask array */ |
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| 146 | int mouse_grxshape(BYTE *shapeptr, BYTE *maskptr, int bpp_in) |
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| 147 | { |
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| 148 | BYTE b; |
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| 149 | int pc; |
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| 150 | int i,j; |
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| 151 | int saved_x, saved_y; |
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| 152 | int cond; |
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| 153 | /*int result; |
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| 154 | grx_vga_modeinfo info;*/ |
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| 155 | |||
| 156 | /* Autocalculate bpp */ |
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| 157 | /*result = gd_getmodeinfo(&info); |
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| 158 | if (result == -1) |
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| 159 | return -1; |
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| 160 | bpp = info.bytesperpixel;*/ |
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| 161 | |||
| 162 | cond = ( ((autocursormode & STATUSMASK) == ENABLE) && ((autocursormode & GRXCURSOR) == GRXCURSOR) ); |
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| 163 | |||
| 164 | if (cond) { |
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| 165 | _mouse_cursor_getposition(&saved_x,&saved_y); |
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| 166 | restore_grx_cursor(saved_x,saved_y); |
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| 167 | } |
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| 168 | |||
| 169 | if (bpp_in != -1) |
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| 170 | bpp = bpp_in; |
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| 171 | |||
| 172 | if (shapeptr == (void*)DEFAULT) { |
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| 173 | shapeptr = left_ptr_bits; |
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| 174 | pc = 0; |
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| 175 | get_bit(left_ptr_bits); |
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| 176 | for (i = 0; i < SHAPE_DX*SHAPE_DY; i++) { |
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| 177 | b = get_bit(NULL) ? 255 : 0; |
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| 178 | for (j = 0; j < bpp; j++) |
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| 179 | shape[pc++] = b; |
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| 180 | } |
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| 181 | } else { |
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| 182 | memcpy(shape, shapeptr, SHAPE_DX*SHAPE_DY*bpp); |
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| 183 | saved_shapeptr = shapeptr; |
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| 184 | } |
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| 185 | |||
| 186 | if (maskptr == (void*)DEFAULT) { |
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| 187 | maskptr = left_ptrmsk_bits; |
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| 188 | pc = 0; |
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| 189 | get_bit(left_ptrmsk_bits); |
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| 190 | for (i = 0; i < SHAPE_DX*SHAPE_DY; i++) { |
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| 191 | b=get_bit(NULL)?0:255; |
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| 192 | for (j = 0; j < bpp; j++) |
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| 193 | mask[pc++] = b; |
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| 194 | } |
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| 195 | } else { |
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| 196 | memcpy(mask, maskptr, SHAPE_DX*SHAPE_DY*bpp); |
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| 197 | saved_maskptr = maskptr; |
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| 198 | } |
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| 199 | |||
| 200 | if (cond) |
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| 201 | show_grx_cursor(saved_x,saved_y); |
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| 202 | |||
| 203 | return 0; |
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| 204 | } |