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RetroArch/settings.c

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/* SSNES - A Super Ninteno Entertainment System (SNES) Emulator frontend for libsnes.
* Copyright (C) 2010 - Hans-Kristian Arntzen
*
* Some code herein may be based on code found in BSNES.
*
* SSNES is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* SSNES is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with SSNES.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "general.h"
#include "conf/config_file.h"
#include <assert.h>
#include <string.h>
#include "hqflt/filters.h"
#include "config.def.h"
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <ctype.h>
struct settings g_settings;
static void read_keybinds(config_file_t *conf);
static void set_defaults(void)
{
const char *def_video = NULL;
const char *def_audio = NULL;
const char *def_input = NULL;
switch (VIDEO_DEFAULT_DRIVER)
{
case VIDEO_GL:
def_video = "gl";
break;
default:
break;
}
switch (AUDIO_DEFAULT_DRIVER)
{
case AUDIO_RSOUND:
def_audio = "rsound";
break;
case AUDIO_OSS:
def_audio = "oss";
break;
case AUDIO_ALSA:
def_audio = "alsa";
break;
case AUDIO_ROAR:
def_audio = "roar";
break;
case AUDIO_AL:
def_audio = "openal";
break;
case AUDIO_SDL:
def_audio = "sdl";
break;
default:
break;
}
switch (INPUT_DEFAULT_DRIVER)
{
case INPUT_SDL:
def_input = "sdl";
break;
default:
break;
}
if (def_video)
strncpy(g_settings.video.driver, def_video, sizeof(g_settings.video.driver) - 1);
if (def_audio)
strncpy(g_settings.audio.driver, def_audio, sizeof(g_settings.audio.driver) - 1);
if (def_input)
strncpy(g_settings.input.driver, def_input, sizeof(g_settings.input.driver) - 1);
g_settings.video.xscale = xscale;
g_settings.video.yscale = yscale;
g_settings.video.fullscreen = fullscreen;
g_settings.video.fullscreen_x = fullscreen_x;
g_settings.video.fullscreen_y = fullscreen_y;
g_settings.video.vsync = vsync;
g_settings.video.smooth = video_smooth;
g_settings.video.force_aspect = force_aspect;
g_settings.video.aspect_ratio = SNES_ASPECT_RATIO;
g_settings.audio.enable = audio_enable;
g_settings.audio.out_rate = out_rate;
g_settings.audio.in_rate = in_rate;
if (audio_device)
strncpy(g_settings.audio.device, audio_device, sizeof(g_settings.audio.device));
g_settings.audio.latency = out_latency;
g_settings.audio.sync = audio_sync;
g_settings.audio.src_quality = SAMPLERATE_QUALITY;
assert(sizeof(g_settings.input.binds[0]) >= sizeof(snes_keybinds_1));
assert(sizeof(g_settings.input.binds[1]) >= sizeof(snes_keybinds_2));
memcpy(g_settings.input.binds[0], snes_keybinds_1, sizeof(snes_keybinds_1));
memcpy(g_settings.input.binds[1], snes_keybinds_2, sizeof(snes_keybinds_2));
g_settings.input.axis_threshold = AXIS_THRESHOLD;
}
void parse_config(void)
{
memset(&g_settings, 0, sizeof(struct settings));
config_file_t *conf = NULL;
if (strlen(g_extern.config_path) > 0)
{
conf = config_file_new(g_extern.config_path);
if (!conf)
{
SSNES_ERR("Couldn't find config at path: \"%s\"\n", g_extern.config_path);
exit(1);
}
}
else
{
#ifdef _WIN32
// Just do something for now.
conf = config_file_new("ssnes.cfg");
#else
const char *xdg = getenv("XDG_CONFIG_HOME");
const char *home = getenv("HOME");
if (xdg)
{
char conf_path[strlen(xdg) + strlen("/ssnes/ssnes.cfg ")];
strcpy(conf_path, xdg);
strcat(conf_path, "/ssnes/ssnes.cfg");
conf = config_file_new(conf_path);
}
else if (home)
{
char conf_path[strlen(home) + strlen("/.ssnesrc ")];
strcpy(conf_path, home);
strcat(conf_path, "/.ssnesrc");
conf = config_file_new(conf_path);
}
// Try this as a last chance...
if (!conf)
conf = config_file_new("/etc/ssnes.cfg");
#endif
}
set_defaults();
if (conf == NULL)
return;
if (g_extern.verbose)
config_file_dump(conf, stderr);
int tmp_int;
double tmp_double;
bool tmp_bool;
char *tmp_str;
// Video settings.
if (config_get_double(conf, "video_xscale", &tmp_double))
g_settings.video.xscale = tmp_double;
if (config_get_double(conf, "video_yscale", &tmp_double))
g_settings.video.yscale = tmp_double;
if (config_get_int(conf, "video_fullscreen_x", &tmp_int))
g_settings.video.fullscreen_x = tmp_int;
if (config_get_int(conf, "video_fullscreen_y", &tmp_int))
g_settings.video.fullscreen_y = tmp_int;
if (config_get_bool(conf, "video_fullscreen", &tmp_bool))
g_settings.video.fullscreen = tmp_bool;
if (config_get_bool(conf, "video_vsync", &tmp_bool))
g_settings.video.vsync = tmp_bool;
if (config_get_bool(conf, "video_smooth", &tmp_bool))
g_settings.video.smooth = tmp_bool;
if (config_get_bool(conf, "video_force_aspect", &tmp_bool))
g_settings.video.force_aspect = tmp_bool;
if (config_get_double(conf, "video_aspect_ratio", &tmp_double))
g_settings.video.aspect_ratio = tmp_double;
if (config_get_string(conf, "video_cg_shader", &tmp_str))
{
strncpy(g_settings.video.cg_shader_path, tmp_str, sizeof(g_settings.video.cg_shader_path) - 1);
free(tmp_str);
}
if (config_get_string(conf, "video_bsnes_shader", &tmp_str))
{
strncpy(g_settings.video.bsnes_shader_path, tmp_str, sizeof(g_settings.video.bsnes_shader_path));
free(tmp_str);
}
#ifdef HAVE_FILTER
if (config_get_string(conf, "video_filter", &tmp_str))
{
unsigned filter = 0;
if (strcasecmp(FILTER_HQ2X_STR, tmp_str) == 0)
filter = FILTER_HQ2X;
else if (strcasecmp(FILTER_HQ4X_STR, tmp_str) == 0)
filter = FILTER_HQ4X;
else if (strcasecmp(FILTER_GRAYSCALE_STR, tmp_str) == 0)
filter = FILTER_GRAYSCALE;
else if (strcasecmp(FILTER_BLEED_STR, tmp_str) == 0)
filter = FILTER_BLEED;
else if (strcasecmp(FILTER_NTSC_STR, tmp_str) == 0)
filter = FILTER_NTSC;
else
{
SSNES_ERR(
"Invalid filter... Valid filters are:\n"
"\t%s\n"
"\t%s\n"
"\t%s\n"
"\t%s\n"
"\t%s\n",
FILTER_HQ2X_STR, FILTER_HQ4X_STR, FILTER_GRAYSCALE_STR,
FILTER_BLEED_STR, FILTER_NTSC_STR);
exit(1);
}
free(tmp_str);
g_settings.video.filter = filter;
}
#endif
// Input Settings.
if (config_get_double(conf, "input_axis_threshold", &tmp_double))
g_settings.input.axis_threshold = tmp_double;
// Audio settings.
if (config_get_bool(conf, "audio_enable", &tmp_bool))
g_settings.audio.enable = tmp_bool;
if (config_get_int(conf, "audio_out_rate", &tmp_int))
g_settings.audio.out_rate = tmp_int;
if (config_get_int(conf, "audio_in_rate", &tmp_int))
g_settings.audio.in_rate = tmp_int;
if (config_get_string(conf, "audio_device", &tmp_str))
{
strncpy(g_settings.audio.device, tmp_str, sizeof(g_settings.audio.device) - 1);
free(tmp_str);
}
if (config_get_int(conf, "audio_latency", &tmp_int))
g_settings.audio.latency = tmp_int;
if (config_get_bool(conf, "audio_sync", &tmp_bool))
g_settings.audio.sync = tmp_bool;
if (config_get_int(conf, "audio_src_quality", &tmp_int))
{
int quals[] = { SRC_ZERO_ORDER_HOLD, SRC_LINEAR, SRC_SINC_FASTEST,
SRC_SINC_MEDIUM_QUALITY, SRC_SINC_BEST_QUALITY };
if (tmp_int > 0 && tmp_int < 6)
g_settings.audio.src_quality = quals[tmp_int];
}
if (config_get_string(conf, "video_driver", &tmp_str))
{
strncpy(g_settings.video.driver, tmp_str, sizeof(g_settings.video.driver) - 1);
free(tmp_str);
}
if (config_get_string(conf, "audio_driver", &tmp_str))
{
strncpy(g_settings.audio.driver, tmp_str, sizeof(g_settings.audio.driver) - 1);
free(tmp_str);
}
if (config_get_string(conf, "input_driver", &tmp_str))
{
strncpy(g_settings.input.driver, tmp_str, sizeof(g_settings.input.driver) - 1);
free(tmp_str);
}
if (config_get_string(conf, "libsnes_path", &tmp_str))
{
strncpy(g_settings.libsnes, tmp_str, sizeof(g_settings.libsnes) - 1);
free(tmp_str);
}
read_keybinds(conf);
config_file_free(conf);
}
struct bind_map
{
const char *key;
const char *btn;
const char *axis;
int snes_key;
};
#define DECLARE_BIND(x, bind) { "input_" #x, "input_" #x "_btn", "input_" #x "_axis", bind },
// Big and nasty bind map... :)
static const struct bind_map bind_maps[2][MAX_BINDS - 1] = {
{
DECLARE_BIND(player1_a, SNES_DEVICE_ID_JOYPAD_A)
DECLARE_BIND(player1_b, SNES_DEVICE_ID_JOYPAD_B)
DECLARE_BIND(player1_y, SNES_DEVICE_ID_JOYPAD_Y)
DECLARE_BIND(player1_x, SNES_DEVICE_ID_JOYPAD_X)
DECLARE_BIND(player1_start, SNES_DEVICE_ID_JOYPAD_START)
DECLARE_BIND(player1_select, SNES_DEVICE_ID_JOYPAD_SELECT)
DECLARE_BIND(player1_l, SNES_DEVICE_ID_JOYPAD_L)
DECLARE_BIND(player1_r, SNES_DEVICE_ID_JOYPAD_R)
DECLARE_BIND(player1_left, SNES_DEVICE_ID_JOYPAD_LEFT)
DECLARE_BIND(player1_right, SNES_DEVICE_ID_JOYPAD_RIGHT)
DECLARE_BIND(player1_up, SNES_DEVICE_ID_JOYPAD_UP)
DECLARE_BIND(player1_down, SNES_DEVICE_ID_JOYPAD_DOWN)
DECLARE_BIND(toggle_fast_forward, SSNES_FAST_FORWARD_KEY)
DECLARE_BIND(save_state, SSNES_SAVE_STATE_KEY)
DECLARE_BIND(load_state, SSNES_LOAD_STATE_KEY)
DECLARE_BIND(exit_emulator, SSNES_QUIT_KEY)
DECLARE_BIND(toggle_fullscreen, SSNES_FULLSCREEN_TOGGLE_KEY)
},
{
DECLARE_BIND(player2_a, SNES_DEVICE_ID_JOYPAD_A)
DECLARE_BIND(player2_b, SNES_DEVICE_ID_JOYPAD_B)
DECLARE_BIND(player2_y, SNES_DEVICE_ID_JOYPAD_Y)
DECLARE_BIND(player2_x, SNES_DEVICE_ID_JOYPAD_X)
DECLARE_BIND(player2_start, SNES_DEVICE_ID_JOYPAD_START)
DECLARE_BIND(player2_select, SNES_DEVICE_ID_JOYPAD_SELECT)
DECLARE_BIND(player2_l, SNES_DEVICE_ID_JOYPAD_L)
DECLARE_BIND(player2_r, SNES_DEVICE_ID_JOYPAD_R)
DECLARE_BIND(player2_left, SNES_DEVICE_ID_JOYPAD_LEFT)
DECLARE_BIND(player2_right, SNES_DEVICE_ID_JOYPAD_RIGHT)
DECLARE_BIND(player2_up, SNES_DEVICE_ID_JOYPAD_UP)
DECLARE_BIND(player2_down, SNES_DEVICE_ID_JOYPAD_DOWN)
DECLARE_BIND(toggle_fast_forward, SSNES_FAST_FORWARD_KEY)
DECLARE_BIND(save_state, SSNES_SAVE_STATE_KEY)
DECLARE_BIND(load_state, SSNES_LOAD_STATE_KEY)
DECLARE_BIND(exit_emulator, SSNES_QUIT_KEY)
DECLARE_BIND(toggle_fullscreen, SSNES_FULLSCREEN_TOGGLE_KEY)
}
};
struct key_map
{
const char *str;
int key;
};
// Edit: Not portable to different input systems atm. Might move this map into the driver itself or something.
// However, this should map nicely over to other systems aswell since the definition are mostly the same anyways.
static const struct key_map sdlk_map[] = {
{ "left", SDLK_LEFT },
{ "right", SDLK_RIGHT },
{ "up", SDLK_UP },
{ "down", SDLK_DOWN },
{ "enter", SDLK_RETURN },
{ "tab", SDLK_TAB },
{ "insert", SDLK_INSERT },
{ "del", SDLK_DELETE },
{ "rshift", SDLK_RSHIFT },
{ "shift", SDLK_LSHIFT },
{ "ctrl", SDLK_LCTRL },
{ "alt", SDLK_LALT },
{ "space", SDLK_SPACE },
{ "escape", SDLK_ESCAPE },
{ "f1", SDLK_F1 },
{ "f2", SDLK_F2 },
{ "f3", SDLK_F3 },
{ "f4", SDLK_F4 },
{ "f5", SDLK_F5 },
{ "f6", SDLK_F6 },
{ "f7", SDLK_F7 },
{ "f8", SDLK_F8 },
{ "f9", SDLK_F9 },
{ "f10", SDLK_F10 },
{ "f11", SDLK_F11 },
{ "f12", SDLK_F12 },
};
static struct snes_keybind *find_snes_bind(unsigned port, int id)
{
struct snes_keybind *binds = g_settings.input.binds[port];
for (int i = 0; binds[i].id != -1; i++)
{
if (id == binds[i].id)
return &binds[i];
}
return NULL;
}
static int find_sdlk_bind(const char *str)
{
for (int i = 0; i < sizeof(sdlk_map)/sizeof(struct key_map); i++)
{
if (strcasecmp(sdlk_map[i].str, str) == 0)
return sdlk_map[i].key;
}
return -1;
}
static int find_sdlk_key(const char *str)
{
// If the bind is a normal key-press ...
if (strlen(str) == 1 && isalpha(*str))
return (int)SDLK_a + (tolower(*str) - (int)'a');
else // Check if we have a special mapping for it.
return find_sdlk_bind(str);
}
static void read_keybinds(config_file_t *conf)
{
char *tmp_key = NULL;
char *tmp_btn = NULL;
char *tmp_axis = NULL;
for (int j = 0; j < 1; j++)
{
for (int i = 0; i < sizeof(bind_maps[j])/sizeof(struct bind_map); i++)
{
struct snes_keybind *bind = find_snes_bind(j, bind_maps[j][i].snes_key);
if (!bind)
continue;
if (bind_maps[j][i].key && config_get_string(conf, bind_maps[j][i].key, &tmp_key))
{
int key = find_sdlk_key(tmp_key);
if (key >= 0)
bind->key = key;
free(tmp_key);
tmp_key = NULL;
}
if (bind_maps[j][i].btn && config_get_string(conf, bind_maps[j][i].btn, &tmp_btn))
{
const char *btn = tmp_btn;
if (*btn++ == 'h')
{
if (isdigit(*btn))
{
char *dir = NULL;
int hat = strtol(btn, &dir, 0);
int hat_dir = 0;
if (dir)
{
if (strcasecmp(dir, "up") == 0)
hat_dir = HAT_UP_MASK;
else if (strcasecmp(dir, "down") == 0)
hat_dir = HAT_DOWN_MASK;
else if (strcasecmp(dir, "left") == 0)
hat_dir = HAT_LEFT_MASK;
else if (strcasecmp(dir, "right") == 0)
hat_dir = HAT_RIGHT_MASK;
if (hat_dir)
bind->joykey = HAT_MAP(hat, hat_dir);
}
}
}
else
bind->joykey = strtol(tmp_btn, NULL, 0);
free(tmp_btn);
}
if (bind_maps[j][i].axis && config_get_string(conf, bind_maps[j][i].axis, &tmp_axis))
{
if (strlen(tmp_axis) >= 2 && (*tmp_axis == '+' || *tmp_axis == '-'))
{
int axis = strtol(tmp_axis + 1, NULL, 0);
if (*tmp_axis == '+')
bind->joyaxis = AXIS_POS(axis);
else
bind->joyaxis = AXIS_NEG(axis);
}
free(tmp_axis);
tmp_axis = NULL;
}
}
}
}
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