| 1 | /* |
| 2 | * (C) GraÅžvydas "notaz" Ignotas, 2010 |
| 3 | * |
| 4 | * This work is licensed under the terms of the GNU LGPL, version 2.1 or later. |
| 5 | * See the COPYING file in the top-level directory. |
| 6 | */ |
| 7 | |
| 8 | #include <stdio.h> |
| 9 | #include <stdlib.h> |
| 10 | #include <string.h> |
| 11 | #include <strings.h> |
| 12 | #include <ctype.h> |
| 13 | |
| 14 | #include "omapsdl.h" |
| 15 | |
| 16 | static char *sskip(char *p) |
| 17 | { |
| 18 | while (*p && isspace(*p)) |
| 19 | p++; |
| 20 | return p; |
| 21 | } |
| 22 | |
| 23 | static char *nsskip(char *p) |
| 24 | { |
| 25 | while (*p && !isspace(*p)) |
| 26 | p++; |
| 27 | return p; |
| 28 | } |
| 29 | |
| 30 | static int check_token(char **p_, const char *token) |
| 31 | { |
| 32 | char *p = *p_; |
| 33 | int tlen = strlen(token); |
| 34 | int ret = strncasecmp(p, token, tlen) == 0 && isspace(p[tlen]); |
| 35 | if (ret) |
| 36 | *p_ = sskip(p + tlen + 1); |
| 37 | |
| 38 | return ret; |
| 39 | } |
| 40 | |
| 41 | static int check_token_eq(char **p_, const char *token) |
| 42 | { |
| 43 | char *p = *p_; |
| 44 | int ret = check_token(&p, token); |
| 45 | ret = ret && *p == '='; |
| 46 | if (ret) |
| 47 | *p_ = sskip(p + 1); |
| 48 | |
| 49 | return ret; |
| 50 | } |
| 51 | |
| 52 | void omapsdl_config(struct SDL_PrivateVideoData *pdata) |
| 53 | { |
| 54 | char buff[256]; |
| 55 | FILE *f; |
| 56 | |
| 57 | f = fopen("omapsdl.cfg", "r"); |
| 58 | if (f == NULL) |
| 59 | return; |
| 60 | |
| 61 | while (!feof(f)) { |
| 62 | char *p, *line = fgets(buff, sizeof(buff), f); |
| 63 | if (line == NULL) |
| 64 | break; |
| 65 | p = line = sskip(line); |
| 66 | if (*p == 0 || *p == '#') |
| 67 | continue; |
| 68 | |
| 69 | if (check_token(&p, "bind")) { |
| 70 | char *key, *key_end, *sdlkey, *sdlkey_end; |
| 71 | key = p; |
| 72 | key_end = nsskip(key); |
| 73 | p = sskip(key_end); |
| 74 | if (*p != '=') |
| 75 | goto bad; |
| 76 | sdlkey = sskip(p + 1); |
| 77 | sdlkey_end = nsskip(sdlkey); |
| 78 | p = sskip(sdlkey_end); |
| 79 | if (*key == 0 || *sdlkey == 0 || *p != 0) |
| 80 | goto bad; |
| 81 | *key_end = *sdlkey_end = 0; |
| 82 | |
| 83 | omapsdl_input_bind(key, sdlkey); |
| 84 | continue; |
| 85 | } |
| 86 | else if (check_token_eq(&p, "force_vsync")) { |
| 87 | pdata->cfg_force_vsync = !!strtol(p, NULL, 0); |
| 88 | continue; |
| 89 | } |
| 90 | else if (check_token_eq(&p, "force_doublebuf")) { |
| 91 | pdata->cfg_force_doublebuf = !!strtol(p, NULL, 0); |
| 92 | continue; |
| 93 | } |
| 94 | else if (check_token_eq(&p, "no_ts_translate")) { |
| 95 | pdata->cfg_no_ts_translate = !!strtol(p, NULL, 0); |
| 96 | continue; |
| 97 | } |
| 98 | |
| 99 | bad: |
| 100 | err("config: failed to parse: %s", line); |
| 101 | } |
| 102 | fclose(f); |
| 103 | } |
| 104 | |
| 105 | void omapsdl_config_from_env(struct SDL_PrivateVideoData *pdata) |
| 106 | { |
| 107 | const char *tmp; |
| 108 | |
| 109 | tmp = getenv("SDL_OMAP_VSYNC"); |
| 110 | if (tmp != NULL) |
| 111 | pdata->cfg_force_vsync = !!strtol(tmp, NULL, 0); |
| 112 | tmp = getenv("SDL_OMAP_FORCE_DOUBLEBUF"); |
| 113 | if (tmp != NULL) |
| 114 | pdata->cfg_force_doublebuf = !!strtol(tmp, NULL, 0); |
| 115 | tmp = getenv("SDL_OMAP_NO_TS_TRANSLATE"); |
| 116 | if (tmp != NULL) |
| 117 | pdata->cfg_no_ts_translate = !!strtol(tmp, NULL, 0); |
| 118 | tmp = getenv("SDL_OMAP_BORDER_CUT"); |
| 119 | if (tmp != NULL) { |
| 120 | int l, r, t, b; |
| 121 | if (sscanf(tmp, "%d,%d,%d,%d", &l, &r, &t, &b) == 4 |
| 122 | && l >= 0 && r >= 0 && t >= 0 && b >= 0) { |
| 123 | pdata->border_l = l, pdata->border_r = r; |
| 124 | pdata->border_t = t, pdata->border_b = b; |
| 125 | } |
| 126 | else |
| 127 | err("border incorrectly specified, ignored"); |
| 128 | } |
| 129 | } |
| 130 | |