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ff2col.c - ff2txt - farbfeld image to plain text visualization |
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git clone git://bitreich.org/ff2txt git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfrinws65d7roiv6bfj7d652fid.onion/ff2txt (git://bitreich.org) |
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README |
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--- |
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ff2col.c (760B) |
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--- |
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1 #include <stdio.h> |
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2 #include <string.h> |
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3 #include <stdlib.h> |
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4 #include <stdint.h> |
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5 |
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6 #include "util.h" |
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7 |
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8 void |
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9 print_2_rows(struct col *buf, uint32_t width, int height) |
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10 { |
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11 size_t w; |
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12 int up, dn; |
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13 char *map = " '.:"; |
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14 |
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15 for (w = 0; w < width; w++) { |
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16 up = height > 0 && col_is_bright(buf[w]) ? 0x1 : 0x0; |
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17 dn = height > 1 && col_is_bright(buf[w + width]) ? 0x2 : 0x0; |
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18 putchar(map[up | dn]); |
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19 } |
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20 putchar('\n'); |
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21 } |
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22 |
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23 int |
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24 main(void) |
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25 { |
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26 struct col buf[MAX_WIDTH * 2]; |
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27 uint32_t width, height, h, r; |
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28 |
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29 read_header(&width, &height); |
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30 |
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31 for (h = 0; h < height; h += 2) { |
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32 r = fread(buf, sizeof(*buf), width * 2, stdin); |
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33 if (r % width != 0) |
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34 err("invalid line width"); |
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35 if (ferror(stdin)) |
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36 err("fread stdin"); |
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37 print_2_rows(buf, width, r / width); |
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38 } |
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39 return 0; |
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40 } |
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