src/video/omapdss/config.c

   1 /*
   2  * (C) Gražvydas "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 "osdl.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, "force_directbuf")) {
  95                         pdata->cfg_force_directbuf = !!strtol(p, NULL, 0);
  96                         continue;
  97                 }
  98                 else if (check_token_eq(&p, "no_ts_translate")) {
  99                         pdata->cfg_no_ts_translate = !!strtol(p, NULL, 0);
 100                         continue;
 101                 }
 102                 else if (check_token_eq(&p, "ts_force_tslib")) {
 103                         pdata->cfg_ts_force_tslib = !!strtol(p, NULL, 0);
 104                         continue;
 105                 }
 106
 107 bad:
 108                 err("config: failed to parse: %s", line);
 109         }
 110         fclose(f);
 111 }
 112
 113 void omapsdl_config_from_env(struct SDL_PrivateVideoData *pdata)
 114 {
 115         const char *tmp;
 116
 117         tmp = getenv("SDL_OMAP_VSYNC");
 118         if (tmp != NULL)
 119                 pdata->cfg_force_vsync = !!strtol(tmp, NULL, 0);
 120         tmp = getenv("SDL_OMAP_FORCE_DOUBLEBUF");
 121         if (tmp != NULL)
 122                 pdata->cfg_force_doublebuf = !!strtol(tmp, NULL, 0);
 123         tmp = getenv("SDL_OMAP_FORCE_DIRECTBUF");
 124         if (tmp != NULL)
 125                 pdata->cfg_force_directbuf = !!strtol(tmp, NULL, 0);
 126         tmp = getenv("SDL_OMAP_NO_TS_TRANSLATE");
 127         if (tmp != NULL)
 128                 pdata->cfg_no_ts_translate = !!strtol(tmp, NULL, 0);
 129         tmp = getenv("SDL_OMAP_TS_FORCE_TSLIB");
 130         if (tmp != NULL)
 131                 pdata->cfg_ts_force_tslib = !!strtol(tmp, NULL, 0);
 132         tmp = getenv("SDL_OMAP_BORDER_CUT");
 133         if (tmp != NULL) {
 134                 int l, r, t, b;
 135                 if (sscanf(tmp, "%d,%d,%d,%d", &l, &r, &t, &b) == 4
 136                     && l >= 0 && r >= 0 && t >= 0 && b >= 0) {
 137                         pdata->border_l = l, pdata->border_r = r;
 138                         pdata->border_t = t, pdata->border_b = b;
 139                 }
 140                 else
 141                         err("border incorrectly specified, ignored");
 142         }
 143 }
 144