Mercurial > molko
annotate libmlk-core/mlk/core/util.c @ 634:3930234ab1f5
examples: add basic gamepad
author | David Demelier <markand@malikania.fr> |
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date | Tue, 29 Aug 2023 13:34:10 +0200 |
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1 /* |
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2 * util.c -- libmlk-core utilities |
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3 * |
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4 * Copyright (c) 2020-2023 David Demelier <markand@malikania.fr> |
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5 * |
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6 * Permission to use, copy, modify, and/or distribute this software for any |
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7 * purpose with or without fee is hereby granted, provided that the above |
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8 * copyright notice and this permission notice appear in all copies. |
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9 * |
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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17 */ |
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18 |
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19 #include <assert.h> |
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20 #include <limits.h> |
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21 #include <stdlib.h> |
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22 |
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23 #include <SDL.h> |
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24 |
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25 #include <mlk/util/util.h> |
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26 |
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27 #include "util.h" |
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28 |
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29 void |
585 | 30 mlk_util_sleep(unsigned int ms) |
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31 { |
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32 SDL_Delay(ms); |
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33 } |
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34 |
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35 const char * |
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36 mlk_util_pathf(const char *fmt, ...) |
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37 { |
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38 static char path[MLK_PATH_MAX]; |
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39 va_list ap; |
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40 |
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41 va_start(ap, fmt); |
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42 vsnprintf(path, sizeof (path), fmt, ap); |
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43 va_end(ap); |
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44 |
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45 return path; |
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46 } |
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47 |
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48 unsigned int |
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49 mlk_util_nrand(unsigned int lower, unsigned int upper) |
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50 { |
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51 assert(upper <= RAND_MAX); |
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52 |
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53 return (rand() % (upper - lower)) + lower; |
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54 } |
618 | 55 |
56 intmax_t | |
57 mlk_clampi(intmax_t v, intmax_t min, intmax_t max) | |
58 { | |
59 return v < min ? min : v > max ? max : v; | |
60 } | |
61 | |
62 uintmax_t | |
63 mlk_clampu(uintmax_t v, uintmax_t min, uintmax_t max) | |
64 { | |
65 return v < min ? min : v > max ? max : v; | |
66 } |