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| 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 | |||
| 151 | giacomo | 8 | #include "font.h" |
| 2 | pj | 9 | #include "fun8.h" |
| 10 | |||
| 11 | #define fontaddr 0xffa6eL /* indirizzo set caratteri */ |
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| 12 | extern DWORD flbaddr; |
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| 13 | |||
| 14 | void RdWin_256(WORD x1, WORD y1, WORD x2, WORD y2, BYTE *buf) |
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| 15 | { |
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| 16 | WORD b_bank, b_offset, display_ptr; |
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| 17 | int dx, len1, len2, bank_num, row, sx[12]; |
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| 18 | /* int bank, enmem;*/ |
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| 19 | DWORD end_of_line, display_offset; |
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| 20 | WORD bytes_per_row; |
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| 21 | LIN_ADDR p; |
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| 22 | |||
| 23 | bytes_per_row = gd_getbpr(); |
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| 24 | p = buf; |
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| 25 | |||
| 26 | if (bytes_per_row == 1024) { |
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| 27 | /* ClrWin_1024(x1,y1,x2,y2,color);*/ |
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| 28 | Seg_Off_256(x1, y1, bytes_per_row, &b_offset, &b_bank); |
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| 29 | dx = (x2 - x1) + 1; |
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| 30 | display_offset = b_offset; |
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| 31 | bank_num = b_bank; |
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| 32 | Load_Write_Bank_256(bank_num); |
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| 33 | row = y1; |
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| 34 | do { |
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| 35 | display_ptr = display_offset; |
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| 36 | /* Clr_Part(color, dx, display_ptr);*/ |
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| 37 | memcpy(p, (LIN_ADDR)(0xA0000 + display_ptr), dx); |
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| 38 | p += dx; |
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| 39 | display_offset += bytes_per_row; |
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| 40 | if (display_offset >= 65536L) { |
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| 41 | bank_num++; |
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| 42 | Load_Write_Bank_256(bank_num); |
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| 43 | display_offset = x1; |
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| 44 | } |
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| 45 | row++; |
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| 46 | } while (row <= y2); |
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| 47 | Load_Write_Bank_256(0); |
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| 48 | } else { |
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| 49 | if (bytes_per_row == 640) { |
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| 50 | sx[0] = 0; |
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| 51 | sx[1] = 256; |
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| 52 | sx[2] = 512; |
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| 53 | sx[3] = 128; |
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| 54 | sx[4] = 384; |
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| 55 | sx[5] = 0; |
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| 56 | } |
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| 57 | if (bytes_per_row == 800) { |
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| 58 | sx[0] = 0; |
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| 59 | sx[1] = 736; |
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| 60 | sx[2] = 672; |
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| 61 | sx[3] = 608; |
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| 62 | sx[4] = 544; |
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| 63 | sx[5] = 480; |
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| 64 | sx[6] = 416; |
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| 65 | sx[7] = 352; |
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| 66 | } |
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| 67 | Seg_Off_256(x1, y1, bytes_per_row, &b_offset, &b_bank); |
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| 68 | dx = (x2 - x1) + 1; |
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| 69 | row = y1; |
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| 70 | display_offset = b_offset; |
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| 71 | display_ptr = display_offset; |
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| 72 | bank_num = b_bank; |
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| 73 | Load_Write_Bank_256(bank_num); |
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| 74 | do { |
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| 75 | end_of_line = display_ptr + (x2 - x1); |
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| 76 | if (end_of_line > 65536L) { |
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| 77 | len2 = (1 + end_of_line - 65536L); |
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| 78 | len1 = dx - len2; |
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| 79 | /* Clr_Part(color, length_1, display_ptr);*/ |
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| 80 | memcpy(p, (LIN_ADDR)(0xA0000 + display_ptr), len1); |
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| 81 | p += len1; |
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| 82 | bank_num++; |
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| 83 | Load_Write_Bank_256(bank_num); |
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| 84 | display_ptr = 0; |
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| 85 | /* Clr_Part(color, length_2, display_ptr);*/ |
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| 86 | memcpy(p, (LIN_ADDR)(0xA0000 + display_ptr), len2); |
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| 87 | p += len2; |
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| 88 | display_ptr = bytes_per_row - len1; |
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| 89 | } else { |
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| 90 | /* Clr_Part(color, dx, display_ptr);*/ |
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| 91 | memcpy(p, (LIN_ADDR)(0xA0000 + display_ptr), dx); |
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| 92 | p += dx; |
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| 93 | display_offset = display_ptr + bytes_per_row; |
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| 94 | if (display_offset > 65536L) { |
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| 95 | bank_num++; |
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| 96 | Load_Write_Bank_256(bank_num); |
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| 97 | if (sx[bank_num] <= x1) { |
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| 98 | display_ptr = x1 - sx[bank_num]; |
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| 99 | } else { |
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| 100 | display_ptr = x1 + (bytes_per_row - sx[bank_num]); |
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| 101 | } |
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| 102 | } else { |
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| 103 | display_ptr += bytes_per_row; |
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| 104 | } |
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| 105 | } |
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| 106 | row++; |
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| 107 | } while (row <= y2); |
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| 108 | Load_Write_Bank_256(0); |
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| 109 | } |
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| 110 | } |
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| 111 | |||
| 112 | void WrWin_256(WORD x1, WORD y1, WORD x2, WORD y2, BYTE *buf) |
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| 113 | { |
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| 114 | WORD b_bank, b_offset, display_ptr; |
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| 115 | int dx, len1, len2, bank_num, row, sx[12]; |
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| 116 | /* int bank, enmem;*/ |
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| 117 | DWORD end_of_line, display_offset; |
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| 118 | WORD bytes_per_row; |
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| 119 | LIN_ADDR p; |
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| 120 | |||
| 121 | bytes_per_row = gd_getbpr(); |
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| 122 | p = buf; |
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| 123 | |||
| 124 | if (bytes_per_row == 1024) { |
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| 125 | /* ClrWin_1024(x1,y1,x2,y2,color);*/ |
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| 126 | Seg_Off_256(x1, y1, bytes_per_row, &b_offset, &b_bank); |
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| 127 | //dx = (x2 - x1); |
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| 128 | dx = (x2 - x1 + 1); |
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| 129 | display_offset = b_offset; |
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| 130 | bank_num = b_bank; |
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| 131 | Load_Write_Bank_256(bank_num); |
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| 132 | row = y1; |
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| 133 | do { |
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| 134 | display_ptr = display_offset; |
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| 135 | /* Clr_Part(color, dx, display_ptr);*/ |
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| 136 | memcpy((LIN_ADDR)(0xA0000 + display_ptr), p, dx); |
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| 137 | p += dx; |
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| 138 | display_offset += bytes_per_row; |
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| 139 | if (display_offset >= 65536L) { |
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| 140 | bank_num++; |
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| 141 | Load_Write_Bank_256(bank_num); |
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| 142 | display_offset = x1; |
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| 143 | } |
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| 144 | row++; |
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| 145 | } while (row <= y2); |
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| 146 | Load_Write_Bank_256(0); |
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| 147 | } else { |
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| 148 | if (bytes_per_row == 640) { |
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| 149 | sx[0] = 0; |
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| 150 | sx[1] = 256; |
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| 151 | sx[2] = 512; |
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| 152 | sx[3] = 128; |
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| 153 | sx[4] = 384; |
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| 154 | sx[5] = 0; |
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| 155 | } |
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| 156 | if (bytes_per_row == 800) { |
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| 157 | sx[0] = 0; |
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| 158 | sx[1] = 736; |
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| 159 | sx[2] = 672; |
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| 160 | sx[3] = 608; |
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| 161 | sx[4] = 544; |
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| 162 | sx[5] = 480; |
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| 163 | sx[6] = 416; |
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| 164 | sx[7] = 352; |
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| 165 | } |
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| 166 | Seg_Off_256(x1, y1, bytes_per_row, &b_offset, &b_bank); |
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| 167 | dx = (x2 - x1 + 1); |
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| 168 | row = y1; |
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| 169 | display_offset = b_offset; |
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| 170 | display_ptr = display_offset; |
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| 171 | bank_num = b_bank; |
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| 172 | Load_Write_Bank_256(bank_num); |
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| 173 | do { |
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| 174 | end_of_line = display_ptr + (x2 - x1); |
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| 175 | // if (end_of_line >= 65536L) { |
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| 176 | if (end_of_line > 65536L) { |
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| 177 | len2 = (1 + end_of_line - 65536L); |
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| 178 | len1 = dx - len2; |
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| 179 | /* Clr_Part(color, length_1, display_ptr);*/ |
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| 180 | memcpy((LIN_ADDR)(0xA0000 + display_ptr), p, len1); |
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| 181 | p += len1; |
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| 182 | bank_num++; |
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| 183 | Load_Write_Bank_256(bank_num); |
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| 184 | display_ptr = 0; |
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| 185 | /* Clr_Part(color, length_2, display_ptr);*/ |
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| 186 | memcpy((LIN_ADDR)(0xA0000 + display_ptr), p, len2); |
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| 187 | p += len2; |
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| 188 | display_ptr = bytes_per_row - len1; |
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| 189 | } else { |
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| 190 | /* Clr_Part(color, dx, display_ptr);*/ |
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| 191 | memcpy((LIN_ADDR)(0xA0000 + display_ptr), p, dx); |
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| 192 | p += dx; |
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| 193 | display_offset = display_ptr + bytes_per_row; |
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| 194 | if (display_offset > 65536L) { |
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| 195 | //if (display_offset >= 65536L) { |
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| 196 | bank_num++; |
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| 197 | Load_Write_Bank_256(bank_num); |
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| 198 | if (sx[bank_num] <= x1) { |
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| 199 | display_ptr = x1 - sx[bank_num]; |
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| 200 | } else { |
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| 201 | display_ptr = x1 + (bytes_per_row - sx[bank_num]); |
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| 202 | } |
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| 203 | } else { |
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| 204 | display_ptr += bytes_per_row; |
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| 205 | } |
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| 206 | } |
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| 207 | row++; |
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| 208 | } while (row <= y2); |
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| 209 | Load_Write_Bank_256(0); |
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| 210 | } |
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| 211 | } |
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| 212 | |||
| 213 | void linGet8(WORD x1, WORD y1, WORD x2, WORD y2, BYTE *buf) |
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| 214 | { |
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| 215 | WORD bpr; |
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| 216 | LIN_ADDR addr, p; |
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| 217 | WORD dx, y; |
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| 218 | |||
| 219 | bpr = gd_getbpr(); |
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| 220 | p = buf; |
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| 221 | addr = (void *)(flbaddr + x1 + bpr * y1); |
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| 222 | //dx = x2 - x1; |
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| 223 | dx = x2 - x1 +1; |
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| 224 | |||
| 225 | for (y = y1; y <= y2; y++) { |
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| 226 | memcpy(p, addr, dx); |
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| 227 | p += dx; |
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| 228 | addr += bpr; |
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| 229 | } |
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| 230 | } |
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| 231 | |||
| 232 | void linPut8(WORD x1, WORD y1, WORD x2, WORD y2, BYTE *buf) |
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| 233 | { |
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| 234 | WORD bpr; |
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| 235 | LIN_ADDR addr, p; |
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| 236 | WORD dx, y; |
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| 237 | |||
| 238 | bpr = gd_getbpr(); |
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| 239 | p = buf; |
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| 240 | addr = (void *)(flbaddr + x1 + bpr * y1); |
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| 241 | dx = x2 - x1 +1; |
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| 242 | |||
| 243 | for (y = y1; y <= y2; y++) { |
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| 244 | memcpy(addr, p, dx); |
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| 245 | p += dx; |
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| 246 | addr += bpr; |
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| 247 | } |
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| 248 | } |
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| 249 | |||
| 250 | void ClrWin_256(WORD x1, WORD y1, WORD x2, WORD y2, DWORD color) |
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| 251 | { |
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| 252 | WORD b_bank, b_offset, display_ptr; |
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| 253 | int dx, len1, len2, bank_num, row, sx[12]; |
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| 254 | /* int bank, enmem;*/ |
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| 255 | DWORD end_of_line, display_offset; |
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| 256 | WORD bytes_per_row; |
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| 257 | |||
| 258 | bytes_per_row = gd_getbpr(); |
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| 259 | |||
| 260 | if (bytes_per_row == 1024) { |
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| 261 | /* ClrWin_1024(x1,y1,x2,y2,color);*/ |
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| 262 | Seg_Off_256(x1, y1, bytes_per_row, &b_offset, &b_bank); |
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| 263 | dx = (x2 - x1) + 1; |
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| 264 | display_offset = b_offset; |
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| 265 | bank_num = b_bank; |
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| 266 | Load_Write_Bank_256(bank_num); |
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| 267 | row = y1; |
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| 268 | do { |
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| 269 | display_ptr = display_offset; |
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| 270 | /* Clr_Part(color, dx, display_ptr);*/ |
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| 271 | memset((LIN_ADDR)(0xA0000 + display_ptr), color, dx); |
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| 272 | display_offset += bytes_per_row; |
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| 273 | if (display_offset >= 65536L) { |
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| 274 | bank_num++; |
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| 275 | Load_Write_Bank_256(bank_num); |
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| 276 | display_offset = x1; |
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| 277 | } |
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| 278 | row++; |
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| 279 | } while (row <= y2); |
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| 280 | Load_Write_Bank_256(0); |
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| 281 | } else { |
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| 282 | if (bytes_per_row == 640) { |
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| 283 | sx[0] = 0; |
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| 284 | sx[1] = 256; |
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| 285 | sx[2] = 512; |
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| 286 | sx[3] = 128; |
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| 287 | sx[4] = 384; |
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| 288 | sx[5] = 0; |
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| 289 | } |
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| 290 | if (bytes_per_row == 800) { |
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| 291 | sx[0] = 0; |
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| 292 | sx[1] = 736; |
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| 293 | sx[2] = 672; |
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| 294 | sx[3] = 608; |
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| 295 | sx[4] = 544; |
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| 296 | sx[5] = 480; |
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| 297 | sx[6] = 416; |
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| 298 | sx[7] = 352; |
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| 299 | } |
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| 300 | Seg_Off_256(x1, y1, bytes_per_row, &b_offset, &b_bank); |
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| 301 | dx = (x2 - x1) + 1; |
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| 302 | row = y1; |
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| 303 | display_offset = b_offset; |
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| 304 | display_ptr = display_offset; |
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| 305 | bank_num = b_bank; |
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| 306 | Load_Write_Bank_256(bank_num); |
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| 307 | do { |
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| 308 | end_of_line = display_ptr + (x2 - x1); |
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| 309 | if (end_of_line >= 65536L) { |
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| 310 | len2 = (1 + end_of_line - 65536L); |
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| 311 | len1 = dx - len2; |
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| 312 | /* Clr_Part(color, length_1, display_ptr);*/ |
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| 313 | memset((LIN_ADDR)(0xA0000 + display_ptr), color, len1); |
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| 314 | bank_num++; |
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| 315 | Load_Write_Bank_256(bank_num); |
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| 316 | display_ptr = 0; |
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| 317 | /* Clr_Part(color, length_2, display_ptr);*/ |
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| 318 | memset((LIN_ADDR)(0xA0000 + display_ptr), color, len2); |
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| 319 | display_ptr = bytes_per_row - len1; |
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| 320 | } else { |
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| 321 | /* Clr_Part(color, dx, display_ptr);*/ |
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| 322 | memset((LIN_ADDR)(0xA0000 + display_ptr), color, dx); |
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| 323 | display_offset = display_ptr + bytes_per_row; |
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| 324 | if (display_offset >= 65536L) { |
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| 325 | bank_num++; |
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| 326 | Load_Write_Bank_256(bank_num); |
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| 327 | if (sx[bank_num] <= x1) { |
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| 328 | display_ptr = x1 - sx[bank_num]; |
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| 329 | } else { |
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| 330 | display_ptr = x1 + (bytes_per_row - sx[bank_num]); |
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| 331 | } |
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| 332 | } else { |
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| 333 | display_ptr += bytes_per_row; |
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| 334 | } |
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| 335 | } |
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| 336 | row++; |
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| 337 | } while (row <= y2); |
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| 338 | Load_Write_Bank_256(0); |
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| 339 | } |
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| 340 | } |
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| 341 | |||
| 342 | void linBox8(WORD x1, WORD y1, WORD x2, WORD y2, DWORD color) |
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| 343 | { |
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| 344 | WORD bpr; |
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| 345 | DWORD addr; |
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| 346 | WORD dx, y; |
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| 347 | |||
| 348 | bpr = gd_getbpr(); |
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| 349 | addr = flbaddr + x1 + bpr * y1; |
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| 350 | dx = x2 - x1 + 1; |
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| 351 | |||
| 352 | for (y = y1; y <= y2; y++) { |
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| 353 | memset((LIN_ADDR)addr, color, dx); |
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| 354 | addr += bpr; |
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| 355 | } |
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| 356 | } |
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| 357 | |||
| 358 | void WrRect_256(WORD x1, WORD y1, WORD x2, WORD y2, DWORD color) |
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| 359 | { |
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| 360 | WORD bank, offs, ebank, eoffs; |
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| 361 | WORD bpr; |
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| 362 | WORD line_segment, len; |
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| 363 | WORD y; |
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| 364 | |||
| 365 | bpr = gd_getbpr(); |
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| 366 | len = 1 + x2 - x1; |
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| 367 | Seg_Off_256(x2, y1, bpr, &eoffs, &ebank); |
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| 368 | Seg_Off_256(x1, y1, bpr, &offs, &bank); |
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| 369 | Load_Write_Bank_256(bank); |
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| 370 | if (bank == ebank) { |
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| 371 | memset((LIN_ADDR)(0xA0000 + offs), color, len); |
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| 372 | } else { |
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| 373 | line_segment = 65536L - offs; |
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| 374 | memset((LIN_ADDR)(0xA0000 + offs), color, line_segment); |
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| 375 | Load_Write_Bank_256(ebank); |
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| 376 | memset((LIN_ADDR)0xA0000, color, eoffs); |
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| 377 | } |
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| 378 | for (y = y1 + 1; y < y2 + 1; y++) { |
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| 379 | Seg_Off_256(x1, y, bpr, &offs, &bank); |
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| 380 | Load_Write_Bank_256(bank); |
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| 381 | lmempokeb((LIN_ADDR)(0xA0000 + offs), color); |
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| 382 | Seg_Off_256(x2, y, bpr, &offs, &bank); |
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| 383 | Load_Write_Bank_256(bank); |
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| 384 | lmempokeb((LIN_ADDR)(0xA0000 + offs), color); |
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| 385 | } |
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| 386 | Seg_Off_256(x2, y2, bpr, &eoffs, &ebank); |
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| 387 | Seg_Off_256(x1, y2, bpr, &offs, &bank); |
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| 388 | Load_Write_Bank_256(bank); |
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| 389 | if (bank == ebank) { |
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| 390 | memset((LIN_ADDR)(0xA0000 + offs), color, len); |
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| 391 | } else { |
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| 392 | line_segment = 65536L - offs; |
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| 393 | memset((LIN_ADDR)(0xA0000 + offs), color, line_segment); |
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| 394 | Load_Write_Bank_256(ebank); |
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| 395 | memset((LIN_ADDR)0xA0000, color, eoffs); |
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| 396 | } |
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| 397 | } |
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| 398 | |||
| 399 | void linRect8(WORD x1, WORD y1, WORD x2, WORD y2, DWORD color) |
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| 400 | { |
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| 401 | WORD bpr; |
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| 402 | DWORD addr; |
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| 403 | WORD dx, y; |
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| 404 | |||
| 405 | bpr = gd_getbpr(); |
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| 406 | addr = flbaddr + x1 + bpr * y1; |
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| 407 | dx = x2 - x1; |
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| 408 | |||
| 409 | memset((LIN_ADDR)addr, color, dx+1); |
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| 410 | addr += bpr; |
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| 411 | |||
| 412 | for (y = y1 + 1; y <= y2 - 1; y++) { |
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| 413 | lmempokeb((LIN_ADDR)addr, color); |
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| 414 | lmempokeb((LIN_ADDR)(addr + dx), color); |
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| 415 | addr += bpr; |
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| 416 | } |
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| 417 | memset((LIN_ADDR)addr, color, dx+1); |
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| 418 | } |
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| 419 | |||
| 420 | void WrText_256(char *text, WORD x, WORD y, DWORD fg, DWORD bg) |
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| 421 | { |
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| 422 | DWORD fp; |
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| 423 | WORD offs, bank; |
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| 424 | WORD bpr; |
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| 425 | int r, c, bits; |
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| 426 | |||
| 427 | bpr = gd_getbpr(); |
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| 428 | while (*text) { |
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| 151 | giacomo | 429 | fp = (DWORD)&(font_table[*(BYTE *)text][0]); |
| 2 | pj | 430 | for (r=0; r<8; r++) { |
| 431 | bits = lmempeekb((LIN_ADDR)(fp++)); |
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| 432 | for (c=0; c<8; c++) |
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| 433 | if (bits & (0x80>>c)) { |
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| 434 | Seg_Off_256(x + c, y + r, bpr, &offs, &bank); |
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| 435 | Load_Write_Bank_256(bank); |
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| 436 | lmempokeb((LIN_ADDR)(0xA0000 + offs), fg); |
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| 437 | } |
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| 438 | /* lmempokeb((LIN_ADDR)(addr + (y + r) * bpr + x + c), fg);*/ |
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| 439 | /* vbe_putpixel((x+c),(y+r),fg);*/ |
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| 440 | else { |
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| 441 | Seg_Off_256(x + c, y + r, bpr, &offs, &bank); |
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| 442 | Load_Write_Bank_256(bank); |
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| 443 | lmempokeb((LIN_ADDR)(0xA0000 + offs), bg); |
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| 444 | } |
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| 445 | /* lmempokeb((LIN_ADDR)(addr + (y + r) * bpr + x + c), bg);*/ |
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| 446 | /* vbe_putpixel((x+c), (y+r), bg);*/ |
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| 447 | } |
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| 448 | text++; |
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| 449 | x += 8; |
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| 450 | } |
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| 451 | } |
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| 452 | |||
| 453 | void linText8(char *text, WORD x, WORD y, DWORD fg, DWORD bg) |
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| 454 | { |
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| 455 | DWORD fp, addr; |
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| 456 | WORD bpr; |
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| 457 | int r, c, bits; |
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| 458 | |||
| 459 | bpr = gd_getbpr(); |
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| 460 | addr = gd_getflb(); |
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| 461 | while (*text) { |
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| 462 | /*DOSSetAddr(fp, (fontaddr + (8 * *(BYTE *)text)));*/ |
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| 463 | /*DOSSetAddr(fp, (fontaddr + (8 * *(BYTE *)text)));*/ |
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| 151 | giacomo | 464 | fp = (DWORD)&(font_table[*(BYTE *)text][0]); |
| 2 | pj | 465 | for (r=0; r<8; r++) { |
| 466 | bits = lmempeekb((LIN_ADDR)fp++); |
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| 467 | for (c=0; c<8; c++) |
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| 468 | if (bits & (0x80>>c)) |
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| 469 | lmempokeb((LIN_ADDR)(addr + (y + r) * bpr + x + c), fg); |
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| 470 | /* vbe_putpixel((x+c),(y+r),fg);*/ |
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| 471 | else |
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| 472 | lmempokeb((LIN_ADDR)(addr + (y + r) * bpr + x + c), bg); |
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| 473 | /* vbe_putpixel((x+c), (y+r), bg);*/ |
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| 474 | } |
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| 475 | text++; |
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| 476 | x += 8; |
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| 477 | } |
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| 478 | } |
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| 479 | |||
| 480 | void WrLine_256(WORD x1, WORD y1, WORD x2, WORD y2, DWORD color) |
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| 481 | { |
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| 482 | int dx, dy, incr1, incr2, d, x, y, xend, yend, yinc, xinc; |
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| 483 | WORD bpr; |
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| 484 | WORD bank, offs, ebank, eoffs; |
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| 485 | WORD line_segment, len; |
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| 486 | |||
| 487 | bpr = gd_getbpr(); |
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| 488 | if (y2 == y1) { |
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| 489 | y = y1; |
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| 490 | if (x1 > x2) { |
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| 491 | xend = x1; |
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| 492 | x1 = x2; |
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| 493 | x2 = xend; |
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| 494 | } |
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| 495 | /* WrHline_256(x1, x2, y1, color, bpr); */ |
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| 496 | len = 1 + x2 - x1; |
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| 497 | Seg_Off_256(x2, y, bpr, &eoffs, &ebank); |
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| 498 | Seg_Off_256(x1, y, bpr, &offs, &bank); |
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| 499 | Load_Write_Bank_256(bank); |
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| 500 | if (bank == ebank) { |
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| 501 | memset((LIN_ADDR)(0xA0000 + offs), color, len); |
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| 502 | } else { |
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| 503 | line_segment = 65536L - offs; |
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| 504 | memset((LIN_ADDR)(0xA0000 + offs), color, line_segment); |
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| 505 | Load_Write_Bank_256(ebank); |
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| 506 | memset((LIN_ADDR)0xA0000, color, eoffs); |
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| 507 | } |
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| 508 | } else { |
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| 509 | dx = abs(x2 - x1); |
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| 510 | dy = abs(y2 - y1); |
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| 511 | if (dx >= dy) { |
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| 512 | if (x1 > x2) { |
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| 513 | x = x2; |
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| 514 | y = y2; |
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| 515 | xend = x1; |
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| 516 | if (dy == 0) { |
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| 517 | yinc = 0; |
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| 518 | } else { |
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| 519 | if (y2 > y1) { |
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| 520 | yinc = -1; |
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| 521 | } else { |
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| 522 | yinc = 1; |
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| 523 | } |
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| 524 | } |
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| 525 | } else { |
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| 526 | x = x1; |
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| 527 | y = y1; |
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| 528 | xend = x2; |
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| 529 | if (dy == 0) { |
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| 530 | yinc = 0; |
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| 531 | } else { |
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| 532 | if (y2 > y1) { |
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| 533 | yinc =1; |
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| 534 | } else { |
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| 535 | yinc = -1; |
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| 536 | } |
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| 537 | } |
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| 538 | } |
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| 539 | incr1 = 2 * dy; |
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| 540 | d = incr1 - dx; |
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| 541 | incr2 = 2 * (dy - dx); |
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| 542 | Seg_Off_256(x, y, bpr, &offs, &bank); |
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| 543 | Load_Write_Bank_256(bank); |
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| 544 | lmempokeb((LIN_ADDR)(0xA0000 + offs), color); |
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| 545 | while (x < xend) { |
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| 546 | x++; |
||
| 547 | if (d < 0) { |
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| 548 | d += incr1; |
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| 549 | } else { |
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| 550 | y += yinc; |
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| 551 | d += incr2; |
||
| 552 | } |
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| 553 | Seg_Off_256(x, y, bpr, &offs, &bank); |
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| 554 | Load_Write_Bank_256(bank); |
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| 555 | lmempokeb((LIN_ADDR)(0xA0000 + offs), color); |
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| 556 | } |
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| 557 | } else { |
||
| 558 | if (y1 > y2) { |
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| 559 | x = x2; |
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| 560 | y = y2; |
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| 561 | yend = y1; |
||
| 562 | if (dx == 0) { |
||
| 563 | xinc = 0; |
||
| 564 | } else { |
||
| 565 | if (x2 > x1) { |
||
| 566 | xinc = -1; |
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| 567 | } else { |
||
| 568 | xinc = 1; |
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| 569 | } |
||
| 570 | } |
||
| 571 | } else { |
||
| 572 | x = x1; |
||
| 573 | y = y1; |
||
| 574 | yend = y2; |
||
| 575 | if (dx == 0) { |
||
| 576 | xinc = 0; |
||
| 577 | } else { |
||
| 578 | if (x2 > x1) { |
||
| 579 | xinc = 1; |
||
| 580 | } else { |
||
| 581 | xinc = -1; |
||
| 582 | } |
||
| 583 | } |
||
| 584 | } |
||
| 585 | incr1 = 2 * dx; |
||
| 586 | d = incr1 - dy; |
||
| 587 | incr2 = 2 * (dx - dy); |
||
| 588 | Seg_Off_256(x, y, bpr, &offs, &bank); |
||
| 589 | Load_Write_Bank_256(bank); |
||
| 590 | lmempokeb((LIN_ADDR)(0xA0000 + offs), color); |
||
| 591 | while (y < yend) { |
||
| 592 | y++; |
||
| 593 | if (d < 0) { |
||
| 594 | d += incr1; |
||
| 595 | } else { |
||
| 596 | x += xinc; |
||
| 597 | d += incr2; |
||
| 598 | } |
||
| 599 | Seg_Off_256(x, y, bpr, &offs, &bank); |
||
| 600 | Load_Write_Bank_256(bank); |
||
| 601 | lmempokeb((LIN_ADDR)(0xA0000 + offs), color); |
||
| 602 | } |
||
| 603 | } |
||
| 604 | } |
||
| 605 | } |
||
| 606 | |||
| 607 | void linLine8(WORD x1, WORD y1, WORD x2, WORD y2, DWORD color) |
||
| 608 | { |
||
| 609 | register int t, distance; |
||
| 610 | register DWORD addr; |
||
| 611 | register WORD bpr; |
||
| 612 | int xerr=0, yerr=0, deltax, deltay; |
||
| 613 | int incx, incy; |
||
| 614 | |||
| 615 | bpr = gd_getbpr(); |
||
| 616 | addr = gd_getflb(); |
||
| 617 | deltax = x2 - x1; /* compute both distances */ |
||
| 618 | deltay = y2 - y1; |
||
| 619 | |||
| 620 | if (deltax > 0) /* compute increments */ |
||
| 621 | incx = 1; |
||
| 622 | else if (deltax == 0) |
||
| 623 | incx = 0; |
||
| 624 | else |
||
| 625 | incx = -1; |
||
| 626 | |||
| 627 | if (deltay > 0) |
||
| 628 | incy = 1; |
||
| 629 | else if (deltay == 0) |
||
| 630 | incy = 0; |
||
| 631 | else |
||
| 632 | incy = -1; |
||
| 633 | |||
| 634 | deltax = abs(deltax); /* determine greater distance */ |
||
| 635 | deltay = abs(deltay); |
||
| 636 | if (deltax > deltay) |
||
| 637 | distance = deltax; |
||
| 638 | else |
||
| 639 | distance = deltay; |
||
| 640 | |||
| 641 | for (t=0; t<=distance+1; t++) { /* draw the line */ |
||
| 642 | /* vbe_putpixel(x1, y1, colour);*/ |
||
| 643 | lmempokeb((LIN_ADDR)(addr + y1 * bpr + x1), color); |
||
| 644 | xerr += deltax; |
||
| 645 | yerr += deltay; |
||
| 646 | if (xerr > distance) { |
||
| 647 | xerr -= distance; |
||
| 648 | x1 += incx; |
||
| 649 | } |
||
| 650 | if (yerr > distance) { |
||
| 651 | yerr -= distance; |
||
| 652 | y1 += incy; |
||
| 653 | } |
||
| 654 | } |
||
| 655 | } |
||
| 656 | |||
| 657 | void WrPixel_256(WORD x, WORD y, DWORD color) |
||
| 658 | { |
||
| 659 | WORD bpr; |
||
| 660 | WORD bank, offs; |
||
| 661 | |||
| 662 | bpr = gd_getbpr(); |
||
| 663 | Seg_Off_256(x, y, bpr, &offs, &bank); |
||
| 664 | Load_Write_Bank_256(bank); |
||
| 665 | lmempokeb((LIN_ADDR)(0xA0000 + offs), color); |
||
| 666 | /* Load_Write_Bank_256(0);*/ |
||
| 667 | } |
||
| 668 | |||
| 669 | void linWr8(WORD x, WORD y, DWORD color) |
||
| 670 | { |
||
| 671 | WORD bpr; |
||
| 672 | |||
| 673 | bpr = gd_getbpr(); |
||
| 674 | lmempokeb((LIN_ADDR)(flbaddr + y * bpr + x), color); |
||
| 675 | } |
||
| 676 | |||
| 677 | DWORD RdPixel_256(WORD x, WORD y) |
||
| 678 | { |
||
| 679 | WORD bpr; |
||
| 680 | WORD bank, offs; |
||
| 681 | DWORD rv; |
||
| 682 | |||
| 683 | bpr = gd_getbpr(); |
||
| 684 | Seg_Off_256(x, y, bpr, &offs, &bank); |
||
| 685 | Load_Write_Bank_256(bank); |
||
| 686 | rv = lmempeekb((LIN_ADDR)(0xA0000 + offs)); |
||
| 687 | return rv; |
||
| 688 | } |
||
| 689 | |||
| 690 | DWORD linRd8(WORD x, WORD y) |
||
| 691 | { |
||
| 692 | WORD bpr; |
||
| 693 | DWORD rv; |
||
| 694 | |||
| 695 | bpr = gd_getbpr(); |
||
| 696 | rv = lmempeekb((LIN_ADDR)(flbaddr + y * bpr + x)); |
||
| 697 | return rv; |
||
| 698 | } |
||
| 699 |