[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 "osdl.h"

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(struct SDL_PrivateVideoData *pdata)
{
	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")) {
			pdata->cfg_force_vsync = !!strtol(p, NULL, 0);
			continue;
		}
		else if (check_token_eq(&p, "force_doublebuf")) {
			pdata->cfg_force_doublebuf = !!strtol(p, NULL, 0);
			continue;
		}
		else if (check_token_eq(&p, "no_ts_translate")) {
			pdata->cfg_no_ts_translate = !!strtol(p, NULL, 0);
			continue;
		}

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

void omapsdl_config_from_env(struct SDL_PrivateVideoData *pdata)
{
	const char *tmp;

	tmp = getenv("SDL_OMAP_VSYNC");
	if (tmp != NULL)
		pdata->cfg_force_vsync = !!strtol(tmp, NULL, 0);
	tmp = getenv("SDL_OMAP_FORCE_DOUBLEBUF");
	if (tmp != NULL)
		pdata->cfg_force_doublebuf = !!strtol(tmp, NULL, 0);
	tmp = getenv("SDL_OMAP_NO_TS_TRANSLATE");
	if (tmp != NULL)
		pdata->cfg_no_ts_translate = !!strtol(tmp, NULL, 0);
	tmp = getenv("SDL_OMAP_BORDER_CUT");
	if (tmp != NULL) {
		int l, r, t, b;
		if (sscanf(tmp, "%d,%d,%d,%d", &l, &r, &t, &b) == 4
		    && l >= 0 && r >= 0 && t >= 0 && b >= 0) {
			pdata->border_l = l, pdata->border_r = r;
			pdata->border_t = t, pdata->border_b = b;
		}
		else
			err("border incorrectly specified, ignored");
	}
}
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
9ab462cd	14	#include "osdl.h"
b78828bf	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
0aab059f	30	static int check_token(char *p_, const char token)
b78828bf	31	{
0aab059f	32	char p = p_;
b78828bf	33	int tlen = strlen(token);
0aab059f	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;
b78828bf	50	}
b78828bf	51
5f4b1fd3	52	void omapsdl_config(struct SDL_PrivateVideoData *pdata)
b78828bf	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);
b3747abb	66	if (p == 0 \|\| p == '#')
b78828bf	67	continue;
b78828bf	68
0aab059f	69	if (check_token(&p, "bind")) {
b78828bf	70	char key, key_end, sdlkey, sdlkey_end;
0aab059f	71	key = p;
b78828bf	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	}
0aab059f	86	else if (check_token_eq(&p, "force_vsync")) {
5f4b1fd3	87	pdata->cfg_force_vsync = !!strtol(p, NULL, 0);
0aab059f	88	continue;
0aab059f	89	}
0bb19c41	90	else if (check_token_eq(&p, "force_doublebuf")) {
5f4b1fd3	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);
0bb19c41	96	continue;
0bb19c41	97	}
b78828bf	98
	99	bad:
	100	err("config: failed to parse: %s", line);
	101	}
	102	fclose(f);
	103	}
	104
5f4b1fd3	105	void omapsdl_config_from_env(struct SDL_PrivateVideoData *pdata)
f641fccb	106	{
	107	const char *tmp;
	108
	109	tmp = getenv("SDL_OMAP_VSYNC");
	110	if (tmp != NULL)
5f4b1fd3	111	pdata->cfg_force_vsync = !!strtol(tmp, NULL, 0);
0bb19c41	112	tmp = getenv("SDL_OMAP_FORCE_DOUBLEBUF");
0bb19c41	113	if (tmp != NULL)
5f4b1fd3	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);
455c8c43	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	}
f641fccb	129	}
b78828bf	130