[sdl_omap.git] / src / video / omapdss / config.c

/*
 * (C) Gražvydas "notaz" Ignotas, 2010
 *
 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
 * See the COPYING file in the top-level directory.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <ctype.h>

#include "omapsdl.h"

int gcfg_force_vsync;
int gcfg_force_doublebuf;

static char *sskip(char *p)
{
	while (*p && isspace(*p))
		p++;
	return p;
}

static char *nsskip(char *p)
{
	while (*p && !isspace(*p))
		p++;
	return p;
}

static int check_token(char **p_, const char *token)
{
	char *p = *p_;
	int tlen = strlen(token);
	int ret = strncasecmp(p, token, tlen) == 0 && isspace(p[tlen]);
	if (ret)
		*p_ = sskip(p + tlen + 1);

	return ret;
}

static int check_token_eq(char **p_, const char *token)
{
	char *p = *p_;
	int ret = check_token(&p, token);
	ret = ret && *p == '=';
	if (ret)
		*p_ = sskip(p + 1);

	return ret;
}

void omapsdl_config(void)
{
	char buff[256];
	FILE *f;

	f = fopen("omapsdl.cfg", "r");
	if (f == NULL)
		return;

	while (!feof(f)) {
		char *p, *line = fgets(buff, sizeof(buff), f);
		if (line == NULL)
			break;
		p = line = sskip(line);
		if (*p == 0 || *p == '#')
			continue;

		if (check_token(&p, "bind")) {
			char *key, *key_end, *sdlkey, *sdlkey_end;
			key = p;
			key_end = nsskip(key);
			p = sskip(key_end);
			if (*p != '=')
				goto bad;
			sdlkey = sskip(p + 1);
			sdlkey_end = nsskip(sdlkey);
			p = sskip(sdlkey_end);
			if (*key == 0 || *sdlkey == 0 || *p != 0)
				goto bad;
			*key_end = *sdlkey_end = 0;

			omapsdl_input_bind(key, sdlkey);
			continue;
		}
		else if (check_token_eq(&p, "force_vsync")) {
			gcfg_force_vsync = strtol(p, NULL, 0);
			continue;
		}
		else if (check_token_eq(&p, "force_doublebuf")) {
			gcfg_force_doublebuf = strtol(p, NULL, 0);
			continue;
		}

bad:
		err("config: failed to parse: %s", line);
	}
	fclose(f);
}

void omapsdl_config_from_env(void)
{
	const char *tmp;

	tmp = getenv("SDL_OMAP_VSYNC");
	if (tmp != NULL)
		gcfg_force_vsync = strtol(tmp, NULL, 0);
	tmp = getenv("SDL_OMAP_FORCE_DOUBLEBUF");
	if (tmp != NULL)
		gcfg_force_doublebuf = strtol(tmp, NULL, 0);
}
Commit	Line	Data
b78828bf	1	/*
83b5751b	2	* (C) Gražvydas "notaz" Ignotas, 2010
b78828bf	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>
0aab059f	9	#include <stdlib.h>
b78828bf	10	#include <string.h>
	11	#include <strings.h>
	12	#include <ctype.h>
	13
	14	#include "omapsdl.h"
	15
0aab059f	16	int gcfg_force_vsync;
0bb19c41	17	int gcfg_force_doublebuf;
0aab059f	18
b78828bf	19	static char sskip(char p)
	20	{
	21	while (p && isspace(p))
	22	p++;
	23	return p;
	24	}
	25
	26	static char nsskip(char p)
	27	{
	28	while (p && !isspace(p))
	29	p++;
	30	return p;
	31	}
	32
0aab059f	33	static int check_token(char *p_, const char token)
b78828bf	34	{
0aab059f	35	char p = p_;
b78828bf	36	int tlen = strlen(token);
0aab059f	37	int ret = strncasecmp(p, token, tlen) == 0 && isspace(p[tlen]);
	38	if (ret)
	39	*p_ = sskip(p + tlen + 1);
	40
	41	return ret;
	42	}
	43
	44	static int check_token_eq(char *p_, const char token)
	45	{
	46	char p = p_;
	47	int ret = check_token(&p, token);
	48	ret = ret && *p == '=';
	49	if (ret)
	50	*p_ = sskip(p + 1);
	51
	52	return ret;
b78828bf	53	}
	54
	55	void omapsdl_config(void)
	56	{
	57	char buff[256];
	58	FILE *f;
	59
	60	f = fopen("omapsdl.cfg", "r");
	61	if (f == NULL)
	62	return;
	63
	64	while (!feof(f)) {
	65	char p, line = fgets(buff, sizeof(buff), f);
	66	if (line == NULL)
	67	break;
	68	p = line = sskip(line);
b3747abb	69	if (p == 0 \|\| p == '#')
b78828bf	70	continue;
b78828bf	71
0aab059f	72	if (check_token(&p, "bind")) {
b78828bf	73	char key, key_end, sdlkey, sdlkey_end;
0aab059f	74	key = p;
b78828bf	75	key_end = nsskip(key);
	76	p = sskip(key_end);
	77	if (*p != '=')
	78	goto bad;
	79	sdlkey = sskip(p + 1);
	80	sdlkey_end = nsskip(sdlkey);
	81	p = sskip(sdlkey_end);
	82	if (key == 0 \|\| sdlkey == 0 \|\| *p != 0)
	83	goto bad;
	84	key_end = sdlkey_end = 0;
	85
	86	omapsdl_input_bind(key, sdlkey);
	87	continue;
	88	}
0aab059f	89	else if (check_token_eq(&p, "force_vsync")) {
	90	gcfg_force_vsync = strtol(p, NULL, 0);
	91	continue;
	92	}
0bb19c41	93	else if (check_token_eq(&p, "force_doublebuf")) {
	94	gcfg_force_doublebuf = strtol(p, NULL, 0);
	95	continue;
	96	}
b78828bf	97
	98	bad:
	99	err("config: failed to parse: %s", line);
	100	}
	101	fclose(f);
	102	}
	103
f641fccb	104	void omapsdl_config_from_env(void)
	105	{
	106	const char *tmp;
	107
	108	tmp = getenv("SDL_OMAP_VSYNC");
	109	if (tmp != NULL)
0bb19c41	110	gcfg_force_vsync = strtol(tmp, NULL, 0);
	111	tmp = getenv("SDL_OMAP_FORCE_DOUBLEBUF");
	112	if (tmp != NULL)
	113	gcfg_force_doublebuf = strtol(tmp, NULL, 0);
f641fccb	114	}
b78828bf	115