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b48ab663b0
RetroArch/runloop.c
twinaphex b48ab663b0 Move BSV runloop code over to runloop.c
2021-05-23 02:20:01 +02:00

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2011 - Daniel De Matteis
*
* RetroArch 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.
*
* RetroArch 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 RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdint.h>
#include <string/stdstring.h>
#ifdef HAVE_THREADS
#include <rthreads/rthreads.h>
#endif
#include "configuration.h"
#include "content.h"
#include "file_path_special.h"
#include "paths.h"
#include "retroarch.h"
#include "verbosity.h"
/**
* runloop_game_specific_options:
*
* Returns: true (1) if a game specific core
* options path has been found,
* otherwise false (0).
**/
static bool runloop_game_specific_options(char **output)
{
char game_options_path[PATH_MAX_LENGTH];
game_options_path[0] ='\0';
if (!retroarch_validate_game_options(
game_options_path,
sizeof(game_options_path), false) ||
!path_is_valid(game_options_path))
return false;
RARCH_LOG("%s %s\n",
msg_hash_to_str(MSG_GAME_SPECIFIC_CORE_OPTIONS_FOUND_AT),
game_options_path);
*output = strdup(game_options_path);
return true;
}
/**
* runloop_folder_specific_options:
*
* Returns: true (1) if a folder specific core
* options path has been found,
* otherwise false (0).
**/
static bool runloop_folder_specific_options(char **output)
{
char folder_options_path[PATH_MAX_LENGTH];
folder_options_path[0] ='\0';
if (!retroarch_validate_folder_options(
folder_options_path,
sizeof(folder_options_path), false) ||
!path_is_valid(folder_options_path))
return false;
RARCH_LOG("%s %s\n",
msg_hash_to_str(MSG_FOLDER_SPECIFIC_CORE_OPTIONS_FOUND_AT),
folder_options_path);
*output = strdup(folder_options_path);
return true;
}
static const char *core_option_manager_parse_value_label(
const char *value, const char *value_label)
{
/* 'value_label' may be NULL */
const char *label = string_is_empty(value_label) ?
value : value_label;
if (string_is_empty(label))
return NULL;
/* Any label starting with a digit (or +/-)
* cannot be a boolean string, and requires
* no further processing */
if (ISDIGIT((unsigned char)*label) ||
(*label == '+') ||
(*label == '-'))
return label;
/* Core devs have a habit of using arbitrary
* strings to label boolean values (i.e. enabled,
* Enabled, on, On, ON, true, True, TRUE, disabled,
* Disabled, off, Off, OFF, false, False, FALSE).
* These should all be converted to standard ON/OFF
* strings
* > Note: We require some duplication here
* (e.g. MENU_ENUM_LABEL_ENABLED *and*
* MENU_ENUM_LABEL_VALUE_ENABLED) in order
* to match both localised and non-localised
* strings. This function is not performance
* critical, so these extra comparisons do
* no harm */
if (string_is_equal_noncase(label, msg_hash_to_str(MENU_ENUM_LABEL_ENABLED)) ||
string_is_equal_noncase(label, msg_hash_to_str(MENU_ENUM_LABEL_VALUE_ENABLED)) ||
string_is_equal_noncase(label, "enable") ||
string_is_equal_noncase(label, "on") ||
string_is_equal_noncase(label, msg_hash_to_str(MENU_ENUM_LABEL_VALUE_ON)) ||
string_is_equal_noncase(label, "true") ||
string_is_equal_noncase(label, msg_hash_to_str(MENU_ENUM_LABEL_VALUE_TRUE)))
label = msg_hash_to_str(MENU_ENUM_LABEL_VALUE_ON);
else if (string_is_equal_noncase(label, msg_hash_to_str(MENU_ENUM_LABEL_DISABLED)) ||
string_is_equal_noncase(label, msg_hash_to_str(MENU_ENUM_LABEL_VALUE_DISABLED)) ||
string_is_equal_noncase(label, "disable") ||
string_is_equal_noncase(label, "off") ||
string_is_equal_noncase(label, msg_hash_to_str(MENU_ENUM_LABEL_VALUE_OFF)) ||
string_is_equal_noncase(label, "false") ||
string_is_equal_noncase(label, msg_hash_to_str(MENU_ENUM_LABEL_VALUE_FALSE)))
label = msg_hash_to_str(MENU_ENUM_LABEL_VALUE_OFF);
return label;
}
static bool core_option_manager_parse_variable(
core_option_manager_t *opt, size_t idx,
const struct retro_variable *var,
config_file_t *config_src)
{
size_t i;
union string_list_elem_attr attr;
const char *val_start = NULL;
char *value = NULL;
char *desc_end = NULL;
struct core_option *option = (struct core_option*)&opt->opts[idx];
struct config_entry_list
*entry = NULL;
/* All options are visible by default */
option->visible = true;
if (!string_is_empty(var->key))
option->key = strdup(var->key);
if (!string_is_empty(var->value))
value = strdup(var->value);
if (!string_is_empty(value))
desc_end = strstr(value, "; ");
if (!desc_end)
goto error;
*desc_end = '\0';
if (!string_is_empty(value))
option->desc = strdup(value);
val_start = desc_end + 2;
option->vals = string_split(val_start, "|");
if (!option->vals)
goto error;
/* Legacy core option interface has no concept
* of value labels
* > Use actual values for display purposes */
attr.i = 0;
option->val_labels = string_list_new();
if (!option->val_labels)
goto error;
/* > Loop over values and 'extract' labels */
for (i = 0; i < option->vals->size; i++)
{
const char *value = option->vals->elems[i].data;
const char *value_label = core_option_manager_parse_value_label(
value, NULL);
/* Redundant safely check... */
value_label = string_is_empty(value_label) ?
value : value_label;
/* Append value label string */
string_list_append(option->val_labels, value_label, attr);
}
/* Legacy core option interface always uses first
* defined value as the default */
option->default_index = 0;
option->index = 0;
if (config_src)
entry = config_get_entry(config_src, option->key);
else
entry = config_get_entry(opt->conf, option->key);
/* Set current config value */
if (entry && !string_is_empty(entry->value))
{
for (i = 0; i < option->vals->size; i++)
{
if (string_is_equal(option->vals->elems[i].data, entry->value))
{
option->index = i;
break;
}
}
}
free(value);
return true;
error:
free(value);
return false;
}
static bool core_option_manager_parse_option(
core_option_manager_t *opt, size_t idx,
const struct retro_core_option_definition *option_def,
config_file_t *config_src)
{
size_t i;
union string_list_elem_attr attr;
struct config_entry_list
*entry = NULL;
size_t num_vals = 0;
struct core_option *option = (struct core_option*)&opt->opts[idx];
const struct retro_core_option_value
*values = option_def->values;
/* All options are visible by default */
option->visible = true;
if (!string_is_empty(option_def->key))
option->key = strdup(option_def->key);
if (!string_is_empty(option_def->desc))
option->desc = strdup(option_def->desc);
if (!string_is_empty(option_def->info))
option->info = strdup(option_def->info);
/* Get number of values */
for (;;)
{
if (string_is_empty(values[num_vals].value))
break;
num_vals++;
}
if (num_vals < 1)
return false;
/* Initialise string lists */
attr.i = 0;
option->vals = string_list_new();
option->val_labels = string_list_new();
if (!option->vals || !option->val_labels)
return false;
/* Initialise default value */
option->default_index = 0;
option->index = 0;
/* Extract value/label pairs */
for (i = 0; i < num_vals; i++)
{
const char *value = values[i].value;
const char *value_label = values[i].label;
/* Append value string
* > We know that 'value' is always valid */
string_list_append(option->vals, value, attr);
/* Value label requires additional processing */
value_label = core_option_manager_parse_value_label(
value, value_label);
/* > Redundant safely check... */
value_label = string_is_empty(value_label) ?
value : value_label;
/* Append value label string */
string_list_append(option->val_labels, value_label, attr);
/* Check whether this value is the default setting */
if (!string_is_empty(option_def->default_value))
{
if (string_is_equal(option_def->default_value, value))
{
option->default_index = i;
option->index = i;
}
}
}
if (config_src)
entry = config_get_entry(config_src, option->key);
else
entry = config_get_entry(opt->conf, option->key);
/* Set current config value */
if (entry && !string_is_empty(entry->value))
{
for (i = 0; i < option->vals->size; i++)
{
if (string_is_equal(option->vals->elems[i].data, entry->value))
{
option->index = i;
break;
}
}
}
return true;
}
/**
* core_option_manager_free:
* @opt : options manager handle
*
* Frees core option manager handle.
**/
static void core_option_manager_free(core_option_manager_t *opt)
{
size_t i;
if (!opt)
return;
for (i = 0; i < opt->size; i++)
{
if (opt->opts[i].desc)
free(opt->opts[i].desc);
if (opt->opts[i].info)
free(opt->opts[i].info);
if (opt->opts[i].key)
free(opt->opts[i].key);
if (opt->opts[i].vals)
string_list_free(opt->opts[i].vals);
if (opt->opts[i].val_labels)
string_list_free(opt->opts[i].val_labels);
opt->opts[i].desc = NULL;
opt->opts[i].info = NULL;
opt->opts[i].key = NULL;
opt->opts[i].vals = NULL;
}
if (opt->conf)
config_file_free(opt->conf);
free(opt->opts);
free(opt);
}
/**
* core_option_manager_new:
* @conf_path : Filesystem path to write core option config file to.
* @src_conf_path : Filesystem path from which to load initial config settings.
* @option_defs : Pointer to variable array handle.
*
* Creates and initializes a core manager handle.
*
* Returns: handle to new core manager handle, otherwise NULL.
**/
static core_option_manager_t *core_option_manager_new(
const char *conf_path, const char *src_conf_path,
const struct retro_core_option_definition *option_defs)
{
const struct retro_core_option_definition *option_def;
size_t size = 0;
config_file_t *config_src = NULL;
core_option_manager_t *opt = (core_option_manager_t*)
malloc(sizeof(*opt));
if (!opt)
return NULL;
opt->conf = NULL;
opt->conf_path[0] = '\0';
opt->opts = NULL;
opt->size = 0;
opt->updated = false;
if (!string_is_empty(conf_path))
if (!(opt->conf = config_file_new_from_path_to_string(conf_path)))
if (!(opt->conf = config_file_new_alloc()))
goto error;
strlcpy(opt->conf_path, conf_path, sizeof(opt->conf_path));
/* Load source config file, if required */
if (!string_is_empty(src_conf_path))
config_src = config_file_new_from_path_to_string(src_conf_path);
/* Note: 'option_def->info == NULL' is valid */
for (option_def = option_defs;
option_def->key && option_def->desc && option_def->values[0].value;
option_def++)
size++;
if (size == 0)
goto error;
opt->opts = (struct core_option*)calloc(size, sizeof(*opt->opts));
if (!opt->opts)
goto error;
opt->size = size;
size = 0;
/* Note: 'option_def->info == NULL' is valid */
for (option_def = option_defs;
option_def->key && option_def->desc && option_def->values[0].value;
size++, option_def++)
if (!core_option_manager_parse_option(opt, size, option_def, config_src))
goto error;
if (config_src)
config_file_free(config_src);
return opt;
error:
if (config_src)
config_file_free(config_src);
core_option_manager_free(opt);
return NULL;
}
/**
* core_option_manager_new_vars:
* @conf_path : Filesystem path to write core option config file to.
* @src_conf_path : Filesystem path from which to load initial config settings.
* @vars : Pointer to variable array handle.
*
* Legacy version of core_option_manager_new().
* Creates and initializes a core manager handle.
*
* Returns: handle to new core manager handle, otherwise NULL.
**/
static core_option_manager_t *core_option_manager_new_vars(
const char *conf_path, const char *src_conf_path,
const struct retro_variable *vars)
{
const struct retro_variable *var;
size_t size = 0;
config_file_t *config_src = NULL;
core_option_manager_t *opt = (core_option_manager_t*)
malloc(sizeof(*opt));
if (!opt)
return NULL;
opt->conf = NULL;
opt->conf_path[0] = '\0';
opt->opts = NULL;
opt->size = 0;
opt->updated = false;
if (!string_is_empty(conf_path))
if (!(opt->conf = config_file_new_from_path_to_string(conf_path)))
if (!(opt->conf = config_file_new_alloc()))
goto error;
strlcpy(opt->conf_path, conf_path, sizeof(opt->conf_path));
/* Load source config file, if required */
if (!string_is_empty(src_conf_path))
config_src = config_file_new_from_path_to_string(src_conf_path);
for (var = vars; var->key && var->value; var++)
size++;
if (size == 0)
goto error;
opt->opts = (struct core_option*)calloc(size, sizeof(*opt->opts));
if (!opt->opts)
goto error;
opt->size = size;
size = 0;
for (var = vars; var->key && var->value; size++, var++)
{
if (!core_option_manager_parse_variable(opt, size, var, config_src))
goto error;
}
if (config_src)
config_file_free(config_src);
return opt;
error:
if (config_src)
config_file_free(config_src);
core_option_manager_free(opt);
return NULL;
}
#ifdef HAVE_BSV_MOVIE
/* BSV MOVIE */
static bool bsv_movie_init_playback(
bsv_movie_t *handle, const char *path)
{
uint32_t state_size = 0;
uint32_t content_crc = 0;
uint32_t header[4] = {0};
intfstream_t *file = intfstream_open_file(path,
RETRO_VFS_FILE_ACCESS_READ,
RETRO_VFS_FILE_ACCESS_HINT_NONE);
if (!file)
{
RARCH_ERR("Could not open BSV file for playback, path : \"%s\".\n", path);
return false;
}
handle->file = file;
handle->playback = true;
intfstream_read(handle->file, header, sizeof(uint32_t) * 4);
/* Compatibility with old implementation that
* used incorrect documentation. */
if (swap_if_little32(header[MAGIC_INDEX]) != BSV_MAGIC
&& swap_if_big32(header[MAGIC_INDEX]) != BSV_MAGIC)
{
RARCH_ERR("%s\n", msg_hash_to_str(MSG_MOVIE_FILE_IS_NOT_A_VALID_BSV1_FILE));
return false;
}
content_crc = content_get_crc();
if (content_crc != 0)
if (swap_if_big32(header[CRC_INDEX]) != content_crc)
RARCH_WARN("%s.\n", msg_hash_to_str(MSG_CRC32_CHECKSUM_MISMATCH));
state_size = swap_if_big32(header[STATE_SIZE_INDEX]);
#if 0
RARCH_ERR("----- debug %u -----\n", header[0]);
RARCH_ERR("----- debug %u -----\n", header[1]);
RARCH_ERR("----- debug %u -----\n", header[2]);
RARCH_ERR("----- debug %u -----\n", header[3]);
#endif
if (state_size)
{
retro_ctx_size_info_t info;
retro_ctx_serialize_info_t serial_info;
uint8_t *buf = (uint8_t*)malloc(state_size);
if (!buf)
return false;
handle->state = buf;
handle->state_size = state_size;
if (intfstream_read(handle->file,
handle->state, state_size) != state_size)
{
RARCH_ERR("%s\n", msg_hash_to_str(MSG_COULD_NOT_READ_STATE_FROM_MOVIE));
return false;
}
core_serialize_size( &info);
if (info.size == state_size)
{
serial_info.data_const = handle->state;
serial_info.size = state_size;
core_unserialize(&serial_info);
}
else
RARCH_WARN("%s\n",
msg_hash_to_str(MSG_MOVIE_FORMAT_DIFFERENT_SERIALIZER_VERSION));
}
handle->min_file_pos = sizeof(header) + state_size;
return true;
}
static bool bsv_movie_init_record(
bsv_movie_t *handle, const char *path)
{
retro_ctx_size_info_t info;
uint32_t state_size = 0;
uint32_t content_crc = 0;
uint32_t header[4] = {0};
intfstream_t *file = intfstream_open_file(path,
RETRO_VFS_FILE_ACCESS_WRITE,
RETRO_VFS_FILE_ACCESS_HINT_NONE);
if (!file)
{
RARCH_ERR("Could not open BSV file for recording, path : \"%s\".\n", path);
return false;
}
handle->file = file;
content_crc = content_get_crc();
/* This value is supposed to show up as
* BSV1 in a HEX editor, big-endian. */
header[MAGIC_INDEX] = swap_if_little32(BSV_MAGIC);
header[CRC_INDEX] = swap_if_big32(content_crc);
core_serialize_size(&info);
state_size = (unsigned)info.size;
header[STATE_SIZE_INDEX] = swap_if_big32(state_size);
intfstream_write(handle->file, header, 4 * sizeof(uint32_t));
handle->min_file_pos = sizeof(header) + state_size;
handle->state_size = state_size;
if (state_size)
{
retro_ctx_serialize_info_t serial_info;
uint8_t *st = (uint8_t*)malloc(state_size);
if (!st)
return false;
handle->state = st;
serial_info.data = handle->state;
serial_info.size = state_size;
core_serialize(&serial_info);
intfstream_write(handle->file,
handle->state, state_size);
}
return true;
}
static void bsv_movie_free(bsv_movie_t *handle)
{
if (!handle)
return;
intfstream_close(handle->file);
free(handle->file);
free(handle->state);
free(handle->frame_pos);
free(handle);
}
static bsv_movie_t *bsv_movie_init_internal(const char *path,
enum rarch_movie_type type)
{
size_t *frame_pos = NULL;
bsv_movie_t *handle = (bsv_movie_t*)calloc(1, sizeof(*handle));
if (!handle)
return NULL;
if (type == RARCH_MOVIE_PLAYBACK)
{
if (!bsv_movie_init_playback(handle, path))
goto error;
}
else if (!bsv_movie_init_record(handle, path))
goto error;
/* Just pick something really large
* ~1 million frames rewind should do the trick. */
if (!(frame_pos = (size_t*)calloc((1 << 20), sizeof(size_t))))
goto error;
handle->frame_pos = frame_pos;
handle->frame_pos[0] = handle->min_file_pos;
handle->frame_mask = (1 << 20) - 1;
return handle;
error:
bsv_movie_free(handle);
return NULL;
}
bool bsv_movie_init(runloop_state_t *p_runloop)
{
if (p_runloop->bsv_movie_state.movie_start_playback)
{
if (!(p_runloop->bsv_movie_state_handle = bsv_movie_init_internal(
p_runloop->bsv_movie_state.movie_start_path,
RARCH_MOVIE_PLAYBACK)))
{
RARCH_ERR("%s: \"%s\".\n",
msg_hash_to_str(MSG_FAILED_TO_LOAD_MOVIE_FILE),
p_runloop->bsv_movie_state.movie_start_path);
return false;
}
p_runloop->bsv_movie_state.movie_playback = true;
runloop_msg_queue_push(msg_hash_to_str(MSG_STARTING_MOVIE_PLAYBACK),
2, 180, false,
NULL, MESSAGE_QUEUE_ICON_DEFAULT, MESSAGE_QUEUE_CATEGORY_INFO);
RARCH_LOG("%s.\n", msg_hash_to_str(MSG_STARTING_MOVIE_PLAYBACK));
return true;
}
else if (p_runloop->bsv_movie_state.movie_start_recording)
{
char msg[8192];
if (!(p_runloop->bsv_movie_state_handle = bsv_movie_init_internal(
p_runloop->bsv_movie_state.movie_start_path,
RARCH_MOVIE_RECORD)))
{
runloop_msg_queue_push(
msg_hash_to_str(MSG_FAILED_TO_START_MOVIE_RECORD),
1, 180, true,
NULL, MESSAGE_QUEUE_ICON_DEFAULT, MESSAGE_QUEUE_CATEGORY_INFO);
RARCH_ERR("%s.\n",
msg_hash_to_str(MSG_FAILED_TO_START_MOVIE_RECORD));
return false;
}
snprintf(msg, sizeof(msg),
"%s \"%s\".",
msg_hash_to_str(MSG_STARTING_MOVIE_RECORD_TO),
p_runloop->bsv_movie_state.movie_start_path);
runloop_msg_queue_push(msg, 1, 180, true, NULL, MESSAGE_QUEUE_ICON_DEFAULT, MESSAGE_QUEUE_CATEGORY_INFO);
RARCH_LOG("%s \"%s\".\n",
msg_hash_to_str(MSG_STARTING_MOVIE_RECORD_TO),
p_runloop->bsv_movie_state.movie_start_path);
return true;
}
return false;
}
void bsv_movie_deinit(runloop_state_t *p_runloop)
{
if (p_runloop->bsv_movie_state_handle)
bsv_movie_free(p_runloop->bsv_movie_state_handle);
p_runloop->bsv_movie_state_handle = NULL;
}
static bool runloop_check_movie_init(runloop_state_t *p_runloop,
settings_t *settings)
{
char msg[16384], path[8192];
int state_slot = settings->ints.state_slot;
msg[0] = path[0] = '\0';
configuration_set_uint(settings, settings->uints.rewind_granularity, 1);
if (state_slot > 0)
snprintf(path, sizeof(path), "%s%d.bsv",
p_runloop->bsv_movie_state.movie_path,
state_slot);
else
snprintf(path, sizeof(path), "%s.bsv",
p_runloop->bsv_movie_state.movie_path);
snprintf(msg, sizeof(msg), "%s \"%s\".",
msg_hash_to_str(MSG_STARTING_MOVIE_RECORD_TO),
path);
if (!(p_runloop->bsv_movie_state_handle = bsv_movie_init_internal(
path, RARCH_MOVIE_RECORD)))
{
runloop_msg_queue_push(
msg_hash_to_str(MSG_FAILED_TO_START_MOVIE_RECORD),
2, 180, true,
NULL, MESSAGE_QUEUE_ICON_DEFAULT, MESSAGE_QUEUE_CATEGORY_INFO);
RARCH_ERR("%s\n",
msg_hash_to_str(MSG_FAILED_TO_START_MOVIE_RECORD));
return false;
}
runloop_msg_queue_push(msg, 2, 180, true, NULL, MESSAGE_QUEUE_ICON_DEFAULT, MESSAGE_QUEUE_CATEGORY_INFO);
RARCH_LOG("%s \"%s\".\n",
msg_hash_to_str(MSG_STARTING_MOVIE_RECORD_TO),
path);
return true;
}
bool bsv_movie_check(
runloop_state_t *p_runloop,
settings_t *settings)
{
if (!p_runloop->bsv_movie_state_handle)
return runloop_check_movie_init(p_runloop, settings);
if (p_runloop->bsv_movie_state.movie_playback)
{
/* Checks if movie is being played back. */
if (!p_runloop->bsv_movie_state.movie_end)
return false;
runloop_msg_queue_push(
msg_hash_to_str(MSG_MOVIE_PLAYBACK_ENDED), 2, 180, false,
NULL, MESSAGE_QUEUE_ICON_DEFAULT, MESSAGE_QUEUE_CATEGORY_INFO);
RARCH_LOG("%s\n", msg_hash_to_str(MSG_MOVIE_PLAYBACK_ENDED));
p_runloop->bsv_movie_state.movie_end = false;
p_runloop->bsv_movie_state.movie_playback = false;
goto end;
}
/* Checks if movie is being recorded. */
if (!p_runloop->bsv_movie_state_handle)
return false;
runloop_msg_queue_push(
msg_hash_to_str(MSG_MOVIE_RECORD_STOPPED), 2, 180, true,
NULL, MESSAGE_QUEUE_ICON_DEFAULT, MESSAGE_QUEUE_CATEGORY_INFO);
RARCH_LOG("%s\n", msg_hash_to_str(MSG_MOVIE_RECORD_STOPPED));
end:
bsv_movie_deinit(p_runloop);
return true;
}
#endif
/* Fetches core options path for current core/content
* - path: path from which options should be read
* from/saved to
* - src_path: in the event that 'path' file does not
* yet exist, provides source path from which initial
* options should be extracted
*
* NOTE: caller must ensure
* path and src_path are NULL-terminated
* */
void runloop_init_core_options_path(
runloop_state_t *p_runloop,
settings_t *settings,
char *path, size_t len,
char *src_path, size_t src_len)
{
char *game_options_path = NULL;
char *folder_options_path = NULL;
bool game_specific_options = settings->bools.game_specific_options;
/* Check whether game-specific options exist */
if (game_specific_options &&
runloop_game_specific_options(&game_options_path))
{
/* Notify system that we have a valid core options
* override */
path_set(RARCH_PATH_CORE_OPTIONS, game_options_path);
p_runloop->game_options_active = true;
p_runloop->folder_options_active = false;
/* Copy options path */
strlcpy(path, game_options_path, len);
free(game_options_path);
}
/* Check whether folder-specific options exist */
else if (game_specific_options &&
runloop_folder_specific_options(&folder_options_path))
{
/* Notify system that we have a valid core options
* override */
path_set(RARCH_PATH_CORE_OPTIONS, folder_options_path);
p_runloop->game_options_active = false;
p_runloop->folder_options_active = true;
/* Copy options path */
strlcpy(path, folder_options_path, len);
free(folder_options_path);
}
else
{
char global_options_path[PATH_MAX_LENGTH];
char per_core_options_path[PATH_MAX_LENGTH];
bool per_core_options_exist = false;
bool per_core_options = !settings->bools.global_core_options;
const char *path_core_options = settings->paths.path_core_options;
global_options_path[0] = '\0';
per_core_options_path[0] = '\0';
if (per_core_options)
{
const char *core_name = p_runloop->system.info.library_name;
/* Get core-specific options path
* > if retroarch_validate_per_core_options() returns
* false, then per-core options are disabled (due to
* unknown system errors...) */
per_core_options = retroarch_validate_per_core_options(
per_core_options_path, sizeof(per_core_options_path), true,
core_name, core_name);
/* If we can use per-core options, check whether an options
* file already exists */
if (per_core_options)
per_core_options_exist = path_is_valid(per_core_options_path);
}
/* If not using per-core options, or if a per-core options
* file does not yet exist, must fetch 'global' options path */
if (!per_core_options || !per_core_options_exist)
{
const char *options_path = path_core_options;
if (!string_is_empty(options_path))
strlcpy(global_options_path,
options_path, sizeof(global_options_path));
else if (!path_is_empty(RARCH_PATH_CONFIG))
fill_pathname_resolve_relative(
global_options_path, path_get(RARCH_PATH_CONFIG),
FILE_PATH_CORE_OPTIONS_CONFIG, sizeof(global_options_path));
}
/* Allocate correct path/src_path strings */
if (per_core_options)
{
strlcpy(path, per_core_options_path, len);
if (!per_core_options_exist)
strlcpy(src_path, global_options_path, src_len);
}
else
strlcpy(path, global_options_path, len);
/* Notify system that we *do not* have a valid core options
* options override */
p_runloop->game_options_active = false;
p_runloop->folder_options_active = false;
}
}
core_option_manager_t *runloop_init_core_variables(
runloop_state_t *p_runloop,
settings_t *settings,
const struct retro_variable *vars)
{
char options_path[PATH_MAX_LENGTH];
char src_options_path[PATH_MAX_LENGTH];
/* Ensure these are NULL-terminated */
options_path[0] = '\0';
src_options_path[0] = '\0';
/* Get core options file path */
runloop_init_core_options_path(
p_runloop,
settings,
options_path, sizeof(options_path),
src_options_path, sizeof(src_options_path));
if (!string_is_empty(options_path))
return core_option_manager_new_vars(options_path, src_options_path, vars);
return NULL;
}
void runloop_deinit_core_options(
runloop_state_t *p_runloop,
const char *path_core_options)
{
/* Check whether game-specific options file is being used */
if (!string_is_empty(path_core_options))
{
config_file_t *conf_tmp = NULL;
/* We only need to save configuration settings for
* the current core
* > If game-specific options file exists, have
* to read it (to ensure file only gets written
* if config values change)
* > Otherwise, create a new, empty config_file_t
* object */
if (path_is_valid(path_core_options))
conf_tmp = config_file_new_from_path_to_string(path_core_options);
if (!conf_tmp)
conf_tmp = config_file_new_alloc();
if (conf_tmp)
{
core_option_manager_flush(
conf_tmp,
p_runloop->core_options);
RARCH_LOG("[Core Options]: Saved %s-specific core options to \"%s\"\n",
p_runloop->game_options_active
? "game"
: "folder",
path_core_options);
config_file_write(conf_tmp, path_core_options, true);
config_file_free(conf_tmp);
conf_tmp = NULL;
}
path_clear(RARCH_PATH_CORE_OPTIONS);
}
else
{
const char *path = p_runloop->core_options->conf_path;
core_option_manager_flush(
p_runloop->core_options->conf,
p_runloop->core_options);
RARCH_LOG("[Core Options]: Saved core options file to \"%s\"\n", path);
config_file_write(p_runloop->core_options->conf, path, true);
}
p_runloop->game_options_active = false;
p_runloop->folder_options_active = false;
if (p_runloop->core_options)
core_option_manager_free(p_runloop->core_options);
p_runloop->core_options = NULL;
}
retro_time_t runloop_core_runtime_tick(
runloop_state_t *p_runloop,
float slowmotion_ratio,
retro_time_t current_time)
{
retro_time_t frame_time =
(1.0 / p_runloop->av_info.timing.fps) * 1000000;
bool runloop_slowmotion = p_runloop->slowmotion;
bool runloop_fastmotion = p_runloop->fastmotion;
/* Account for slow motion */
if (runloop_slowmotion)
return (retro_time_t)((double)frame_time * slowmotion_ratio);
/* Account for fast forward */
if (runloop_fastmotion)
{
/* Doing it this way means we miss the first frame after
* turning fast forward on, but it saves the overhead of
* having to do:
* retro_time_t current_usec = cpu_features_get_time_usec();
* libretro_core_runtime_last = current_usec;
* every frame when fast forward is off. */
retro_time_t current_usec = current_time;
retro_time_t potential_frame_time = current_usec -
p_runloop->libretro_core_runtime_last;
p_runloop->libretro_core_runtime_last = current_usec;
if (potential_frame_time < frame_time)
return potential_frame_time;
}
return frame_time;
}
core_option_manager_t *runloop_init_core_options(
runloop_state_t *p_runloop,
settings_t *settings,
const struct retro_core_option_definition *option_defs)
{
char options_path[PATH_MAX_LENGTH];
char src_options_path[PATH_MAX_LENGTH];
/* Ensure these are NULL-terminated */
options_path[0] = '\0';
src_options_path[0] = '\0';
/* Get core options file path */
runloop_init_core_options_path(
p_runloop,
settings,
options_path, sizeof(options_path),
src_options_path, sizeof(src_options_path));
if (!string_is_empty(options_path))
return core_option_manager_new(
options_path, src_options_path, option_defs);
return NULL;
}
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