Rev 3 | Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | pj | 1 | #include <ll/i386/hw-data.h> |
| 2 | #include <ll/i386/hw-instr.h> |
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| 3 | #include <ll/i386/mem.h> |
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| 4 | #include <ll/stdlib.h> |
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| 5 | |||
| 6 | #include <drivers/gd.h> |
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| 7 | |||
| 8 | #include "fun8.h" |
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| 9 | |||
| 10 | #define fontaddr 0xffa6eL /* indirizzo set caratteri */ |
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| 11 | extern DWORD flbaddr; |
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| 12 | |||
| 13 | void RdWin_256(WORD x1, WORD y1, WORD x2, WORD y2, BYTE *buf) |
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| 14 | { |
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| 15 | WORD b_bank, b_offset, display_ptr; |
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| 16 | int dx, len1, len2, bank_num, row, sx[12]; |
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| 17 | /* int bank, enmem;*/ |
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| 18 | DWORD end_of_line, display_offset; |
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| 19 | WORD bytes_per_row; |
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| 20 | LIN_ADDR p; |
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| 21 | |||
| 22 | bytes_per_row = gd_getbpr(); |
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| 23 | p = buf; |
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| 24 | |||
| 25 | if (bytes_per_row == 1024) { |
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| 26 | /* ClrWin_1024(x1,y1,x2,y2,color);*/ |
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| 27 | Seg_Off_256(x1, y1, bytes_per_row, &b_offset, &b_bank); |
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| 28 | dx = (x2 - x1) + 1; |
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| 29 | display_offset = b_offset; |
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| 30 | bank_num = b_bank; |
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| 31 | Load_Write_Bank_256(bank_num); |
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| 32 | row = y1; |
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| 33 | do { |
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| 34 | display_ptr = display_offset; |
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| 35 | /* Clr_Part(color, dx, display_ptr);*/ |
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| 36 | memcpy(p, (LIN_ADDR)(0xA0000 + display_ptr), dx); |
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| 37 | p += dx; |
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| 38 | display_offset += bytes_per_row; |
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| 39 | if (display_offset >= 65536L) { |
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| 40 | bank_num++; |
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| 41 | Load_Write_Bank_256(bank_num); |
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| 42 | display_offset = x1; |
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| 43 | } |
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| 44 | row++; |
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| 45 | } while (row <= y2); |
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| 46 | Load_Write_Bank_256(0); |
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| 47 | } else { |
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| 48 | if (bytes_per_row == 640) { |
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| 49 | sx[0] = 0; |
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| 50 | sx[1] = 256; |
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| 51 | sx[2] = 512; |
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| 52 | sx[3] = 128; |
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| 53 | sx[4] = 384; |
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| 54 | sx[5] = 0; |
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| 55 | } |
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| 56 | if (bytes_per_row == 800) { |
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| 57 | sx[0] = 0; |
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| 58 | sx[1] = 736; |
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| 59 | sx[2] = 672; |
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| 60 | sx[3] = 608; |
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| 61 | sx[4] = 544; |
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| 62 | sx[5] = 480; |
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| 63 | sx[6] = 416; |
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| 64 | sx[7] = 352; |
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| 65 | } |
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| 66 | Seg_Off_256(x1, y1, bytes_per_row, &b_offset, &b_bank); |
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| 67 | dx = (x2 - x1) + 1; |
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| 68 | row = y1; |
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| 69 | display_offset = b_offset; |
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| 70 | display_ptr = display_offset; |
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| 71 | bank_num = b_bank; |
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| 72 | Load_Write_Bank_256(bank_num); |
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| 73 | do { |
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| 74 | end_of_line = display_ptr + (x2 - x1); |
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| 75 | if (end_of_line > 65536L) { |
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| 76 | len2 = (1 + end_of_line - 65536L); |
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| 77 | len1 = dx - len2; |
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| 78 | /* Clr_Part(color, length_1, display_ptr);*/ |
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| 79 | memcpy(p, (LIN_ADDR)(0xA0000 + display_ptr), len1); |
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| 80 | p += len1; |
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| 81 | bank_num++; |
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| 82 | Load_Write_Bank_256(bank_num); |
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| 83 | display_ptr = 0; |
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| 84 | /* Clr_Part(color, length_2, display_ptr);*/ |
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| 85 | memcpy(p, (LIN_ADDR)(0xA0000 + display_ptr), len2); |
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| 86 | p += len2; |
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| 87 | display_ptr = bytes_per_row - len1; |
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| 88 | } else { |
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| 89 | /* Clr_Part(color, dx, display_ptr);*/ |
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| 90 | memcpy(p, (LIN_ADDR)(0xA0000 + display_ptr), dx); |
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| 91 | p += dx; |
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| 92 | display_offset = display_ptr + bytes_per_row; |
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| 93 | if (display_offset > 65536L) { |
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| 94 | bank_num++; |
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| 95 | Load_Write_Bank_256(bank_num); |
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| 96 | if (sx[bank_num] <= x1) { |
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| 97 | display_ptr = x1 - sx[bank_num]; |
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| 98 | } else { |
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| 99 | display_ptr = x1 + (bytes_per_row - sx[bank_num]); |
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| 100 | } |
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| 101 | } else { |
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| 102 | display_ptr += bytes_per_row; |
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| 103 | } |
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| 104 | } |
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| 105 | row++; |
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| 106 | } while (row <= y2); |
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| 107 | Load_Write_Bank_256(0); |
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| 108 | } |
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| 109 | } |
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| 110 | |||
| 111 | void WrWin_256(WORD x1, WORD y1, WORD x2, WORD y2, BYTE *buf) |
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| 112 | { |
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| 113 | WORD b_bank, b_offset, display_ptr; |
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| 114 | int dx, len1, len2, bank_num, row, sx[12]; |
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| 115 | /* int bank, enmem;*/ |
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| 116 | DWORD end_of_line, display_offset; |
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| 117 | WORD bytes_per_row; |
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| 118 | LIN_ADDR p; |
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| 119 | |||
| 120 | bytes_per_row = gd_getbpr(); |
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| 121 | p = buf; |
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| 122 | |||
| 123 | if (bytes_per_row == 1024) { |
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| 124 | /* ClrWin_1024(x1,y1,x2,y2,color);*/ |
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| 125 | Seg_Off_256(x1, y1, bytes_per_row, &b_offset, &b_bank); |
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| 126 | //dx = (x2 - x1); |
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| 127 | dx = (x2 - x1 + 1); |
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| 128 | display_offset = b_offset; |
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| 129 | bank_num = b_bank; |
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| 130 | Load_Write_Bank_256(bank_num); |
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| 131 | row = y1; |
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| 132 | do { |
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| 133 | display_ptr = display_offset; |
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| 134 | /* Clr_Part(color, dx, display_ptr);*/ |
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| 135 | memcpy((LIN_ADDR)(0xA0000 + display_ptr), p, dx); |
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| 136 | p += dx; |
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| 137 | display_offset += bytes_per_row; |
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| 138 | if (display_offset >= 65536L) { |
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| 139 | bank_num++; |
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| 140 | Load_Write_Bank_256(bank_num); |
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| 141 | display_offset = x1; |
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| 142 | } |
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| 143 | row++; |
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| 144 | } while (row <= y2); |
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| 145 | Load_Write_Bank_256(0); |
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| 146 | } else { |
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| 147 | if (bytes_per_row == 640) { |
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| 148 | sx[0] = 0; |
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| 149 | sx[1] = 256; |
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| 150 | sx[2] = 512; |
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| 151 | sx[3] = 128; |
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| 152 | sx[4] = 384; |
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| 153 | sx[5] = 0; |
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| 154 | } |
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| 155 | if (bytes_per_row == 800) { |
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| 156 | sx[0] = 0; |
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| 157 | sx[1] = 736; |
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| 158 | sx[2] = 672; |
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| 159 | sx[3] = 608; |
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| 160 | sx[4] = 544; |
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| 161 | sx[5] = 480; |
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| 162 | sx[6] = 416; |
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| 163 | sx[7] = 352; |
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| 164 | } |
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| 165 | Seg_Off_256(x1, y1, bytes_per_row, &b_offset, &b_bank); |
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| 166 | dx = (x2 - x1 + 1); |
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| 167 | row = y1; |
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| 168 | display_offset = b_offset; |
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| 169 | display_ptr = display_offset; |
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| 170 | bank_num = b_bank; |
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| 171 | Load_Write_Bank_256(bank_num); |
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| 172 | do { |
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| 173 | end_of_line = display_ptr + (x2 - x1); |
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| 174 | // if (end_of_line >= 65536L) { |
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| 175 | if (end_of_line > 65536L) { |
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| 176 | len2 = (1 + end_of_line - 65536L); |
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| 177 | len1 = dx - len2; |
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| 178 | /* Clr_Part(color, length_1, display_ptr);*/ |
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| 179 | memcpy((LIN_ADDR)(0xA0000 + display_ptr), p, len1); |
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| 180 | p += len1; |
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| 181 | bank_num++; |
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| 182 | Load_Write_Bank_256(bank_num); |
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| 183 | display_ptr = 0; |
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| 184 | /* Clr_Part(color, length_2, display_ptr);*/ |
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| 185 | memcpy((LIN_ADDR)(0xA0000 + display_ptr), p, len2); |
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| 186 | p += len2; |
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| 187 | display_ptr = bytes_per_row - len1; |
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| 188 | } else { |
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| 189 | /* Clr_Part(color, dx, display_ptr);*/ |
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| 190 | memcpy((LIN_ADDR)(0xA0000 + display_ptr), p, dx); |
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| 191 | p += dx; |
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| 192 | display_offset = display_ptr + bytes_per_row; |
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| 193 | if (display_offset > 65536L) { |
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| 194 | //if (display_offset >= 65536L) { |
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| 195 | bank_num++; |
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| 196 | Load_Write_Bank_256(bank_num); |
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| 197 | if (sx[bank_num] <= x1) { |
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| 198 | display_ptr = x1 - sx[bank_num]; |
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| 199 | } else { |
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| 200 | display_ptr = x1 + (bytes_per_row - sx[bank_num]); |
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| 201 | } |
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| 202 | } else { |
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| 203 | display_ptr += bytes_per_row; |
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| 204 | } |
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| 205 | } |
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| 206 | row++; |
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| 207 | } while (row <= y2); |
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| 208 | Load_Write_Bank_256(0); |
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| 209 | } |
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| 210 | } |
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| 211 | |||
| 212 | void linGet8(WORD x1, WORD y1, WORD x2, WORD y2, BYTE *buf) |
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| 213 | { |
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| 214 | WORD bpr; |
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| 215 | LIN_ADDR addr, p; |
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| 216 | WORD dx, y; |
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| 217 | |||
| 218 | bpr = gd_getbpr(); |
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| 219 | p = buf; |
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| 220 | addr = (void *)(flbaddr + x1 + bpr * y1); |
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| 221 | //dx = x2 - x1; |
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| 222 | dx = x2 - x1 +1; |
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| 223 | |||
| 224 | for (y = y1; y <= y2; y++) { |
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| 225 | memcpy(p, addr, dx); |
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| 226 | p += dx; |
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| 227 | addr += bpr; |
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| 228 | } |
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| 229 | } |
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| 230 | |||
| 231 | void linPut8(WORD x1, WORD y1, WORD x2, WORD y2, BYTE *buf) |
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| 232 | { |
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| 233 | WORD bpr; |
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| 234 | LIN_ADDR addr, p; |
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| 235 | WORD dx, y; |
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| 236 | |||
| 237 | bpr = gd_getbpr(); |
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| 238 | p = buf; |
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| 239 | addr = (void *)(flbaddr + x1 + bpr * y1); |
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| 240 | dx = x2 - x1 +1; |
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| 241 | |||
| 242 | for (y = y1; y <= y2; y++) { |
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| 243 | memcpy(addr, p, dx); |
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| 244 | p += dx; |
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| 245 | addr += bpr; |
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| 246 | } |
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| 247 | } |
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| 248 | |||
| 249 | void ClrWin_256(WORD x1, WORD y1, WORD x2, WORD y2, DWORD color) |
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| 250 | { |
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| 251 | WORD b_bank, b_offset, display_ptr; |
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| 252 | int dx, len1, len2, bank_num, row, sx[12]; |
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| 253 | /* int bank, enmem;*/ |
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| 254 | DWORD end_of_line, display_offset; |
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| 255 | WORD bytes_per_row; |
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| 256 | |||
| 257 | bytes_per_row = gd_getbpr(); |
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| 258 | |||
| 259 | if (bytes_per_row == 1024) { |
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| 260 | /* ClrWin_1024(x1,y1,x2,y2,color);*/ |
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| 261 | Seg_Off_256(x1, y1, bytes_per_row, &b_offset, &b_bank); |
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| 262 | dx = (x2 - x1) + 1; |
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| 263 | display_offset = b_offset; |
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| 264 | bank_num = b_bank; |
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| 265 | Load_Write_Bank_256(bank_num); |
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| 266 | row = y1; |
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| 267 | do { |
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| 268 | display_ptr = display_offset; |
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| 269 | /* Clr_Part(color, dx, display_ptr);*/ |
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| 270 | memset((LIN_ADDR)(0xA0000 + display_ptr), color, dx); |
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| 271 | display_offset += bytes_per_row; |
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| 272 | if (display_offset >= 65536L) { |
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| 273 | bank_num++; |
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| 274 | Load_Write_Bank_256(bank_num); |
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| 275 | display_offset = x1; |
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| 276 | } |
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| 277 | row++; |
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| 278 | } while (row <= y2); |
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| 279 | Load_Write_Bank_256(0); |
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| 280 | } else { |
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| 281 | if (bytes_per_row == 640) { |
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| 282 | sx[0] = 0; |
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| 283 | sx[1] = 256; |
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| 284 | sx[2] = 512; |
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| 285 | sx[3] = 128; |
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| 286 | sx[4] = 384; |
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| 287 | sx[5] = 0; |
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| 288 | } |
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| 289 | if (bytes_per_row == 800) { |
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| 290 | sx[0] = 0; |
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| 291 | sx[1] = 736; |
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| 292 | sx[2] = 672; |
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| 293 | sx[3] = 608; |
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| 294 | sx[4] = 544; |
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| 295 | sx[5] = 480; |
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| 296 | sx[6] = 416; |
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| 297 | sx[7] = 352; |
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| 298 | } |
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| 299 | Seg_Off_256(x1, y1, bytes_per_row, &b_offset, &b_bank); |
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| 300 | dx = (x2 - x1) + 1; |
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| 301 | row = y1; |
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| 302 | display_offset = b_offset; |
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| 303 | display_ptr = display_offset; |
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| 304 | bank_num = b_bank; |
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| 305 | Load_Write_Bank_256(bank_num); |
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| 306 | do { |
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| 307 | end_of_line = display_ptr + (x2 - x1); |
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| 308 | if (end_of_line >= 65536L) { |
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| 309 | len2 = (1 + end_of_line - 65536L); |
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| 310 | len1 = dx - len2; |
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| 311 | /* Clr_Part(color, length_1, display_ptr);*/ |
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| 312 | memset((LIN_ADDR)(0xA0000 + display_ptr), color, len1); |
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| 313 | bank_num++; |
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| 314 | Load_Write_Bank_256(bank_num); |
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| 315 | display_ptr = 0; |
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| 316 | /* Clr_Part(color, length_2, display_ptr);*/ |
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| 317 | memset((LIN_ADDR)(0xA0000 + display_ptr), color, len2); |
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| 318 | display_ptr = bytes_per_row - len1; |
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| 319 | } else { |
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| 320 | /* Clr_Part(color, dx, display_ptr);*/ |
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| 321 | memset((LIN_ADDR)(0xA0000 + display_ptr), color, dx); |
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| 322 | display_offset = display_ptr + bytes_per_row; |
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| 323 | if (display_offset >= 65536L) { |
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| 324 | bank_num++; |
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| 325 | Load_Write_Bank_256(bank_num); |
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| 326 | if (sx[bank_num] <= x1) { |
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| 327 | display_ptr = x1 - sx[bank_num]; |
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| 328 | } else { |
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| 329 | display_ptr = x1 + (bytes_per_row - sx[bank_num]); |
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| 330 | } |
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| 331 | } else { |
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| 332 | display_ptr += bytes_per_row; |
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| 333 | } |
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| 334 | } |
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| 335 | row++; |
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| 336 | } while (row <= y2); |
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| 337 | Load_Write_Bank_256(0); |
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| 338 | } |
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| 339 | } |
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| 340 | |||
| 341 | void linBox8(WORD x1, WORD y1, WORD x2, WORD y2, DWORD color) |
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| 342 | { |
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| 343 | WORD bpr; |
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| 344 | DWORD addr; |
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| 345 | WORD dx, y; |
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| 346 | |||
| 347 | bpr = gd_getbpr(); |
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| 348 | addr = flbaddr + x1 + bpr * y1; |
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| 349 | dx = x2 - x1 + 1; |
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| 350 | |||
| 351 | for (y = y1; y <= y2; y++) { |
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| 352 | memset((LIN_ADDR)addr, color, dx); |
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| 353 | addr += bpr; |
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| 354 | } |
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| 355 | } |
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| 356 | |||
| 357 | void WrRect_256(WORD x1, WORD y1, WORD x2, WORD y2, DWORD color) |
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| 358 | { |
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| 359 | WORD bank, offs, ebank, eoffs; |
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| 360 | WORD bpr; |
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| 361 | WORD line_segment, len; |
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| 362 | WORD y; |
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| 363 | |||
| 364 | bpr = gd_getbpr(); |
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| 365 | len = 1 + x2 - x1; |
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| 366 | Seg_Off_256(x2, y1, bpr, &eoffs, &ebank); |
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| 367 | Seg_Off_256(x1, y1, bpr, &offs, &bank); |
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| 368 | Load_Write_Bank_256(bank); |
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| 369 | if (bank == ebank) { |
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| 370 | memset((LIN_ADDR)(0xA0000 + offs), color, len); |
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| 371 | } else { |
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| 372 | line_segment = 65536L - offs; |
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| 373 | memset((LIN_ADDR)(0xA0000 + offs), color, line_segment); |
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| 374 | Load_Write_Bank_256(ebank); |
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| 375 | memset((LIN_ADDR)0xA0000, color, eoffs); |
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| 376 | } |
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| 377 | for (y = y1 + 1; y < y2 + 1; y++) { |
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| 378 | Seg_Off_256(x1, y, bpr, &offs, &bank); |
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| 379 | Load_Write_Bank_256(bank); |
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| 380 | lmempokeb((LIN_ADDR)(0xA0000 + offs), color); |
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| 381 | Seg_Off_256(x2, y, bpr, &offs, &bank); |
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| 382 | Load_Write_Bank_256(bank); |
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| 383 | lmempokeb((LIN_ADDR)(0xA0000 + offs), color); |
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| 384 | } |
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| 385 | Seg_Off_256(x2, y2, bpr, &eoffs, &ebank); |
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| 386 | Seg_Off_256(x1, y2, bpr, &offs, &bank); |
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| 387 | Load_Write_Bank_256(bank); |
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| 388 | if (bank == ebank) { |
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| 389 | memset((LIN_ADDR)(0xA0000 + offs), color, len); |
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| 390 | } else { |
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| 391 | line_segment = 65536L - offs; |
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| 392 | memset((LIN_ADDR)(0xA0000 + offs), color, line_segment); |
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| 393 | Load_Write_Bank_256(ebank); |
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| 394 | memset((LIN_ADDR)0xA0000, color, eoffs); |
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| 395 | } |
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| 396 | } |
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| 397 | |||
| 398 | void linRect8(WORD x1, WORD y1, WORD x2, WORD y2, DWORD color) |
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| 399 | { |
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| 400 | WORD bpr; |
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| 401 | DWORD addr; |
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| 402 | WORD dx, y; |
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| 403 | |||
| 404 | bpr = gd_getbpr(); |
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| 405 | addr = flbaddr + x1 + bpr * y1; |
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| 406 | dx = x2 - x1; |
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| 407 | |||
| 408 | memset((LIN_ADDR)addr, color, dx+1); |
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| 409 | addr += bpr; |
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| 410 | |||
| 411 | for (y = y1 + 1; y <= y2 - 1; y++) { |
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| 412 | lmempokeb((LIN_ADDR)addr, color); |
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| 413 | lmempokeb((LIN_ADDR)(addr + dx), color); |
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| 414 | addr += bpr; |
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| 415 | } |
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| 416 | memset((LIN_ADDR)addr, color, dx+1); |
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| 417 | } |
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| 418 | |||
| 419 | void WrText_256(char *text, WORD x, WORD y, DWORD fg, DWORD bg) |
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| 420 | { |
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| 421 | DWORD fp; |
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| 422 | WORD offs, bank; |
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| 423 | WORD bpr; |
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| 424 | int r, c, bits; |
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| 425 | |||
| 426 | bpr = gd_getbpr(); |
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| 427 | while (*text) { |
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| 428 | fp = fontaddr + (8 * *(BYTE *)text); |
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| 429 | for (r=0; r<8; r++) { |
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| 430 | bits = lmempeekb((LIN_ADDR)(fp++)); |
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| 431 | for (c=0; c<8; c++) |
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| 432 | if (bits & (0x80>>c)) { |
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| 433 | Seg_Off_256(x + c, y + r, bpr, &offs, &bank); |
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| 434 | Load_Write_Bank_256(bank); |
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| 435 | lmempokeb((LIN_ADDR)(0xA0000 + offs), fg); |
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| 436 | } |
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| 437 | /* lmempokeb((LIN_ADDR)(addr + (y + r) * bpr + x + c), fg);*/ |
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| 438 | /* vbe_putpixel((x+c),(y+r),fg);*/ |
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| 439 | else { |
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| 440 | Seg_Off_256(x + c, y + r, bpr, &offs, &bank); |
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| 441 | Load_Write_Bank_256(bank); |
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| 442 | lmempokeb((LIN_ADDR)(0xA0000 + offs), bg); |
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| 443 | } |
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| 444 | /* lmempokeb((LIN_ADDR)(addr + (y + r) * bpr + x + c), bg);*/ |
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| 445 | /* vbe_putpixel((x+c), (y+r), bg);*/ |
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| 446 | } |
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| 447 | text++; |
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| 448 | x += 8; |
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| 449 | } |
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| 450 | } |
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| 451 | |||
| 452 | void linText8(char *text, WORD x, WORD y, DWORD fg, DWORD bg) |
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| 453 | { |
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| 454 | DWORD fp, addr; |
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| 455 | WORD bpr; |
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| 456 | int r, c, bits; |
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| 457 | |||
| 458 | bpr = gd_getbpr(); |
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| 459 | addr = gd_getflb(); |
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| 460 | while (*text) { |
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| 461 | /*DOSSetAddr(fp, (fontaddr + (8 * *(BYTE *)text)));*/ |
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| 462 | /*DOSSetAddr(fp, (fontaddr + (8 * *(BYTE *)text)));*/ |
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| 463 | fp = fontaddr + (8 * *(BYTE *)text); |
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| 464 | for (r=0; r<8; r++) { |
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| 465 | bits = lmempeekb((LIN_ADDR)fp++); |
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| 466 | for (c=0; c<8; c++) |
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| 467 | if (bits & (0x80>>c)) |
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| 468 | lmempokeb((LIN_ADDR)(addr + (y + r) * bpr + x + c), fg); |
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| 469 | /* vbe_putpixel((x+c),(y+r),fg);*/ |
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| 470 | else |
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| 471 | lmempokeb((LIN_ADDR)(addr + (y + r) * bpr + x + c), bg); |
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| 472 | /* vbe_putpixel((x+c), (y+r), bg);*/ |
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| 473 | } |
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| 474 | text++; |
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| 475 | x += 8; |
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| 476 | } |
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| 477 | } |
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| 478 | |||
| 479 | void WrLine_256(WORD x1, WORD y1, WORD x2, WORD y2, DWORD color) |
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| 480 | { |
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| 481 | int dx, dy, incr1, incr2, d, x, y, xend, yend, yinc, xinc; |
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| 482 | WORD bpr; |
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| 483 | WORD bank, offs, ebank, eoffs; |
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| 484 | WORD line_segment, len; |
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| 485 | |||
| 486 | bpr = gd_getbpr(); |
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| 487 | if (y2 == y1) { |
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| 488 | y = y1; |
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| 489 | if (x1 > x2) { |
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| 490 | xend = x1; |
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| 491 | x1 = x2; |
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| 492 | x2 = xend; |
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| 493 | } |
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| 494 | /* WrHline_256(x1, x2, y1, color, bpr); */ |
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| 495 | len = 1 + x2 - x1; |
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| 496 | Seg_Off_256(x2, y, bpr, &eoffs, &ebank); |
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| 497 | Seg_Off_256(x1, y, bpr, &offs, &bank); |
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| 498 | Load_Write_Bank_256(bank); |
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| 499 | if (bank == ebank) { |
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| 500 | memset((LIN_ADDR)(0xA0000 + offs), color, len); |
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| 501 | } else { |
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| 502 | line_segment = 65536L - offs; |
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| 503 | memset((LIN_ADDR)(0xA0000 + offs), color, line_segment); |
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| 504 | Load_Write_Bank_256(ebank); |
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| 505 | memset((LIN_ADDR)0xA0000, color, eoffs); |
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| 506 | } |
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| 507 | } else { |
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| 508 | dx = abs(x2 - x1); |
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| 509 | dy = abs(y2 - y1); |
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| 510 | if (dx >= dy) { |
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| 511 | if (x1 > x2) { |
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| 512 | x = x2; |
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| 513 | y = y2; |
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| 514 | xend = x1; |
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| 515 | if (dy == 0) { |
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| 516 | yinc = 0; |
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| 517 | } else { |
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| 518 | if (y2 > y1) { |
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| 519 | yinc = -1; |
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| 520 | } else { |
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| 521 | yinc = 1; |
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| 522 | } |
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| 523 | } |
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| 524 | } else { |
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| 525 | x = x1; |
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| 526 | y = y1; |
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| 527 | xend = x2; |
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| 528 | if (dy == 0) { |
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| 529 | yinc = 0; |
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| 530 | } else { |
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| 531 | if (y2 > y1) { |
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| 532 | yinc =1; |
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| 533 | } else { |
||
| 534 | yinc = -1; |
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| 535 | } |
||
| 536 | } |
||
| 537 | } |
||
| 538 | incr1 = 2 * dy; |
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| 539 | d = incr1 - dx; |
||
| 540 | incr2 = 2 * (dy - dx); |
||
| 541 | Seg_Off_256(x, y, bpr, &offs, &bank); |
||
| 542 | Load_Write_Bank_256(bank); |
||
| 543 | lmempokeb((LIN_ADDR)(0xA0000 + offs), color); |
||
| 544 | while (x < xend) { |
||
| 545 | x++; |
||
| 546 | if (d < 0) { |
||
| 547 | d += incr1; |
||
| 548 | } else { |
||
| 549 | y += yinc; |
||
| 550 | d += incr2; |
||
| 551 | } |
||
| 552 | Seg_Off_256(x, y, bpr, &offs, &bank); |
||
| 553 | Load_Write_Bank_256(bank); |
||
| 554 | lmempokeb((LIN_ADDR)(0xA0000 + offs), color); |
||
| 555 | } |
||
| 556 | } else { |
||
| 557 | if (y1 > y2) { |
||
| 558 | x = x2; |
||
| 559 | y = y2; |
||
| 560 | yend = y1; |
||
| 561 | if (dx == 0) { |
||
| 562 | xinc = 0; |
||
| 563 | } else { |
||
| 564 | if (x2 > x1) { |
||
| 565 | xinc = -1; |
||
| 566 | } else { |
||
| 567 | xinc = 1; |
||
| 568 | } |
||
| 569 | } |
||
| 570 | } else { |
||
| 571 | x = x1; |
||
| 572 | y = y1; |
||
| 573 | yend = y2; |
||
| 574 | if (dx == 0) { |
||
| 575 | xinc = 0; |
||
| 576 | } else { |
||
| 577 | if (x2 > x1) { |
||
| 578 | xinc = 1; |
||
| 579 | } else { |
||
| 580 | xinc = -1; |
||
| 581 | } |
||
| 582 | } |
||
| 583 | } |
||
| 584 | incr1 = 2 * dx; |
||
| 585 | d = incr1 - dy; |
||
| 586 | incr2 = 2 * (dx - dy); |
||
| 587 | Seg_Off_256(x, y, bpr, &offs, &bank); |
||
| 588 | Load_Write_Bank_256(bank); |
||
| 589 | lmempokeb((LIN_ADDR)(0xA0000 + offs), color); |
||
| 590 | while (y < yend) { |
||
| 591 | y++; |
||
| 592 | if (d < 0) { |
||
| 593 | d += incr1; |
||
| 594 | } else { |
||
| 595 | x += xinc; |
||
| 596 | d += incr2; |
||
| 597 | } |
||
| 598 | Seg_Off_256(x, y, bpr, &offs, &bank); |
||
| 599 | Load_Write_Bank_256(bank); |
||
| 600 | lmempokeb((LIN_ADDR)(0xA0000 + offs), color); |
||
| 601 | } |
||
| 602 | } |
||
| 603 | } |
||
| 604 | } |
||
| 605 | |||
| 606 | void linLine8(WORD x1, WORD y1, WORD x2, WORD y2, DWORD color) |
||
| 607 | { |
||
| 608 | register int t, distance; |
||
| 609 | register DWORD addr; |
||
| 610 | register WORD bpr; |
||
| 611 | int xerr=0, yerr=0, deltax, deltay; |
||
| 612 | int incx, incy; |
||
| 613 | |||
| 614 | bpr = gd_getbpr(); |
||
| 615 | addr = gd_getflb(); |
||
| 616 | deltax = x2 - x1; /* compute both distances */ |
||
| 617 | deltay = y2 - y1; |
||
| 618 | |||
| 619 | if (deltax > 0) /* compute increments */ |
||
| 620 | incx = 1; |
||
| 621 | else if (deltax == 0) |
||
| 622 | incx = 0; |
||
| 623 | else |
||
| 624 | incx = -1; |
||
| 625 | |||
| 626 | if (deltay > 0) |
||
| 627 | incy = 1; |
||
| 628 | else if (deltay == 0) |
||
| 629 | incy = 0; |
||
| 630 | else |
||
| 631 | incy = -1; |
||
| 632 | |||
| 633 | deltax = abs(deltax); /* determine greater distance */ |
||
| 634 | deltay = abs(deltay); |
||
| 635 | if (deltax > deltay) |
||
| 636 | distance = deltax; |
||
| 637 | else |
||
| 638 | distance = deltay; |
||
| 639 | |||
| 640 | for (t=0; t<=distance+1; t++) { /* draw the line */ |
||
| 641 | /* vbe_putpixel(x1, y1, colour);*/ |
||
| 642 | lmempokeb((LIN_ADDR)(addr + y1 * bpr + x1), color); |
||
| 643 | xerr += deltax; |
||
| 644 | yerr += deltay; |
||
| 645 | if (xerr > distance) { |
||
| 646 | xerr -= distance; |
||
| 647 | x1 += incx; |
||
| 648 | } |
||
| 649 | if (yerr > distance) { |
||
| 650 | yerr -= distance; |
||
| 651 | y1 += incy; |
||
| 652 | } |
||
| 653 | } |
||
| 654 | } |
||
| 655 | |||
| 656 | void WrPixel_256(WORD x, WORD y, DWORD color) |
||
| 657 | { |
||
| 658 | WORD bpr; |
||
| 659 | WORD bank, offs; |
||
| 660 | |||
| 661 | bpr = gd_getbpr(); |
||
| 662 | Seg_Off_256(x, y, bpr, &offs, &bank); |
||
| 663 | Load_Write_Bank_256(bank); |
||
| 664 | lmempokeb((LIN_ADDR)(0xA0000 + offs), color); |
||
| 665 | /* Load_Write_Bank_256(0);*/ |
||
| 666 | } |
||
| 667 | |||
| 668 | void linWr8(WORD x, WORD y, DWORD color) |
||
| 669 | { |
||
| 670 | WORD bpr; |
||
| 671 | |||
| 672 | bpr = gd_getbpr(); |
||
| 673 | lmempokeb((LIN_ADDR)(flbaddr + y * bpr + x), color); |
||
| 674 | } |
||
| 675 | |||
| 676 | DWORD RdPixel_256(WORD x, WORD y) |
||
| 677 | { |
||
| 678 | WORD bpr; |
||
| 679 | WORD bank, offs; |
||
| 680 | DWORD rv; |
||
| 681 | |||
| 682 | bpr = gd_getbpr(); |
||
| 683 | Seg_Off_256(x, y, bpr, &offs, &bank); |
||
| 684 | Load_Write_Bank_256(bank); |
||
| 685 | rv = lmempeekb((LIN_ADDR)(0xA0000 + offs)); |
||
| 686 | return rv; |
||
| 687 | } |
||
| 688 | |||
| 689 | DWORD linRd8(WORD x, WORD y) |
||
| 690 | { |
||
| 691 | WORD bpr; |
||
| 692 | DWORD rv; |
||
| 693 | |||
| 694 | bpr = gd_getbpr(); |
||
| 695 | rv = lmempeekb((LIN_ADDR)(flbaddr + y * bpr + x)); |
||
| 696 | return rv; |
||
| 697 | } |
||
| 698 |