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RetroArch/playlist.c
twinaphex 960039b6da (playlist.c) Cleanups
2020-08-23 21:36:09 +02:00

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2017 - Daniel De Matteis
* Copyright (C) 2016-2019 - Brad Parker
*
* 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <libretro.h>
#include <boolean.h>
#include <retro_assert.h>
#include <retro_miscellaneous.h>
#include <compat/posix_string.h>
#include <string/stdstring.h>
#include <streams/interface_stream.h>
#include <file/file_path.h>
#include <lists/string_list.h>
#include <formats/jsonsax_full.h>
#include <array/rbuf.h>
#include "playlist.h"
#include "verbosity.h"
#include "file_path_special.h"
#include "core_info.h"
#ifndef PLAYLIST_ENTRIES
#define PLAYLIST_ENTRIES 6
#endif
#define WINDOWS_PATH_DELIMITER '\\'
#define POSIX_PATH_DELIMITER '/'
#ifdef _WIN32
#define LOCAL_FILE_SYSTEM_PATH_DELIMITER WINDOWS_PATH_DELIMITER
#define USING_WINDOWS_FILE_SYSTEM
#else
#define LOCAL_FILE_SYSTEM_PATH_DELIMITER POSIX_PATH_DELIMITER
#define USING_POSIX_FILE_SYSTEM
#endif
struct content_playlist
{
char *default_core_path;
char *default_core_name;
char *base_content_directory;
struct playlist_entry *entries;
playlist_config_t config; /* size_t alignment */
enum playlist_label_display_mode label_display_mode;
enum playlist_thumbnail_mode right_thumbnail_mode;
enum playlist_thumbnail_mode left_thumbnail_mode;
enum playlist_sort_mode sort_mode;
bool modified;
bool old_format;
bool compressed;
bool cached_external;
};
typedef struct
{
struct playlist_entry *current_entry;
char *current_meta_string;
char *current_items_string;
char **current_entry_val;
char **current_meta_val;
int *current_entry_int_val;
unsigned *current_entry_uint_val;
struct string_list **current_entry_string_list_val;
enum playlist_label_display_mode *current_meta_label_display_mode_val;
enum playlist_thumbnail_mode *current_meta_thumbnail_mode_val;
enum playlist_sort_mode *current_meta_sort_mode_val;
intfstream_t *file;
playlist_t *playlist;
JSON_Parser parser; /* ptr alignment */
JSON_Writer writer; /* ptr alignment */
unsigned array_depth;
unsigned object_depth;
bool in_items;
bool in_subsystem_roms;
bool capacity_exceeded;
bool out_of_memory;
} JSONContext;
/* TODO/FIXME - global state - perhaps move outside this file */
static playlist_t *playlist_cached = NULL;
typedef int (playlist_sort_fun_t)(
const struct playlist_entry *a,
const struct playlist_entry *b);
/* TODO/FIXME - hack for allowing the explore view to switch
* over to a playlist item */
void playlist_set_cached_external(playlist_t* pl)
{
playlist_free_cached();
if (!pl)
return;
playlist_cached = pl;
playlist_cached->cached_external = true;
}
/* Convenience function: copies specified playlist
* path to specified playlist configuration object */
void playlist_config_set_path(playlist_config_t *config, const char *path)
{
if (!config)
return;
if (!string_is_empty(path))
strlcpy(config->path, path, sizeof(config->path));
else
config->path[0] = '\0';
}
/* Convenience function: copies base content directory
* path to specified playlist configuration object.
* Also sets autofix_paths boolean, depending on base
* content directory value */
void playlist_config_set_base_content_directory(
playlist_config_t* config, const char* path)
{
if (!config)
return;
config->autofix_paths = !string_is_empty(path);
if (config->autofix_paths)
strlcpy(config->base_content_directory, path,
sizeof(config->base_content_directory));
else
config->base_content_directory[0] = '\0';
}
/* Creates a copy of the specified playlist configuration.
* Returns false in the event of an error */
bool playlist_config_copy(const playlist_config_t *src,
playlist_config_t *dst)
{
if (!src || !dst)
return false;
strlcpy(dst->path, src->path, sizeof(dst->path));
strlcpy(dst->base_content_directory, src->base_content_directory,
sizeof(dst->base_content_directory));
dst->capacity = src->capacity;
dst->old_format = src->old_format;
dst->compress = src->compress;
dst->fuzzy_archive_match = src->fuzzy_archive_match;
dst->autofix_paths = src->autofix_paths;
return true;
}
/* Returns internal playlist configuration object
* of specified playlist.
* Returns NULL it the event of an error. */
playlist_config_t *playlist_get_config(playlist_t *playlist)
{
if (!playlist)
return NULL;
return &playlist->config;
}
static void path_replace_base_path_and_convert_to_local_file_system(
char *out_path, const char *in_path,
const char *in_oldrefpath, const char *in_refpath,
size_t size)
{
size_t in_oldrefpath_length = strlen(in_oldrefpath);
size_t in_refpath_length = strlen(in_refpath);
/* If entry path is inside playlist base path,
* replace it with new base content directory */
if (string_starts_with_size(in_path, in_oldrefpath, in_oldrefpath_length))
{
memcpy(out_path, in_refpath, in_refpath_length);
memcpy(out_path + in_refpath_length, in_path + in_oldrefpath_length,
strlen(in_path) - in_oldrefpath_length + 1);
#ifdef USING_WINDOWS_FILE_SYSTEM
/* If we are running under a Windows filesystem,
* '/' characters are not allowed anywhere.
* We replace with '\' and hope for the best... */
string_replace_all_chars(out_path,
POSIX_PATH_DELIMITER, WINDOWS_PATH_DELIMITER);
#endif
#ifdef USING_POSIX_FILE_SYSTEM
/* Under POSIX filesystem, we replace '\' characters with '/' */
string_replace_all_chars(out_path,
WINDOWS_PATH_DELIMITER, POSIX_PATH_DELIMITER);
#endif
}
else
strlcpy(out_path, in_path, size);
}
/**
* playlist_path_equal:
* @real_path : 'Real' search path, generated by path_resolve_realpath()
* @entry_path : Existing playlist entry 'path' value
*
* Returns 'true' if real_path matches entry_path
* (Taking into account relative paths, case insensitive
* filesystems, 'incomplete' archive paths)
**/
static bool playlist_path_equal(const char *real_path,
const char *entry_path, const playlist_config_t *config)
{
bool real_path_is_compressed;
bool entry_real_path_is_compressed;
char entry_real_path[PATH_MAX_LENGTH];
entry_real_path[0] = '\0';
/* Sanity check */
if (string_is_empty(real_path) ||
string_is_empty(entry_path) ||
!config)
return false;
/* Get entry 'real' path */
strlcpy(entry_real_path, entry_path, sizeof(entry_real_path));
path_resolve_realpath(entry_real_path, sizeof(entry_real_path), true);
if (string_is_empty(entry_real_path))
return false;
/* First pass comparison */
#ifdef _WIN32
/* Handle case-insensitive operating systems*/
if (string_is_equal_noncase(real_path, entry_real_path))
return true;
#else
if (string_is_equal(real_path, entry_real_path))
return true;
#endif
#ifdef RARCH_INTERNAL
/* If fuzzy matching is disabled, we can give up now */
if (!config->fuzzy_archive_match)
return false;
#endif
/* If we reach this point, we have to work
* harder...
* Need to handle a rather awkward archive file
* case where:
* - playlist path contains a properly formatted
* [archive_path][delimiter][rom_file]
* - search path is just [archive_path]
* ...or vice versa.
* This pretty much always happens when a playlist
* is generated via scan content (which handles the
* archive paths correctly), but the user subsequently
* loads an archive file via the command line or some
* external launcher (where the [delimiter][rom_file]
* part is almost always omitted) */
real_path_is_compressed = path_is_compressed_file(real_path);
entry_real_path_is_compressed = path_is_compressed_file(entry_real_path);
if ((real_path_is_compressed && !entry_real_path_is_compressed) ||
(!real_path_is_compressed && entry_real_path_is_compressed))
{
const char *compressed_path_a = real_path_is_compressed ? real_path : entry_real_path;
const char *full_path = real_path_is_compressed ? entry_real_path : real_path;
const char *delim = path_get_archive_delim(full_path);
if (delim)
{
char compressed_path_b[PATH_MAX_LENGTH] = {0};
unsigned len = (unsigned)(1 + delim - full_path);
strlcpy(compressed_path_b, full_path,
(len < PATH_MAX_LENGTH ? len : PATH_MAX_LENGTH) * sizeof(char));
#ifdef _WIN32
/* Handle case-insensitive operating systems*/
if (string_is_equal_noncase(compressed_path_a, compressed_path_b))
return true;
#else
if (string_is_equal(compressed_path_a, compressed_path_b))
return true;
#endif
}
}
return false;
}
/**
* playlist_core_path_equal:
* @real_core_path : 'Real' search path, generated by path_resolve_realpath()
* @entry_core_path : Existing playlist entry 'core path' value
* @config : Playlist config parameters
*
* Returns 'true' if real_core_path matches entry_core_path
* (Taking into account relative paths, case insensitive
* filesystems)
**/
static bool playlist_core_path_equal(const char *real_core_path, const char *entry_core_path, const playlist_config_t *config)
{
char entry_real_core_path[PATH_MAX_LENGTH];
entry_real_core_path[0] = '\0';
/* Sanity check */
if (string_is_empty(real_core_path) || string_is_empty(entry_core_path))
return false;
/* Get entry 'real' core path */
strlcpy(entry_real_core_path, entry_core_path, sizeof(entry_real_core_path));
if (!string_is_equal(entry_real_core_path, FILE_PATH_DETECT) &&
!string_is_equal(entry_real_core_path, FILE_PATH_BUILTIN))
path_resolve_realpath(entry_real_core_path, sizeof(entry_real_core_path), true);
if (string_is_empty(entry_real_core_path))
return false;
#ifdef _WIN32
/* Handle case-insensitive operating systems*/
if (string_is_equal_noncase(real_core_path, entry_real_core_path))
return true;
#else
if (string_is_equal(real_core_path, entry_real_core_path))
return true;
#endif
if (config->autofix_paths &&
core_info_core_file_id_is_equal(real_core_path, entry_core_path))
return true;
return false;
}
uint32_t playlist_get_size(playlist_t *playlist)
{
if (!playlist)
return 0;
return (uint32_t)RBUF_LEN(playlist->entries);
}
char *playlist_get_conf_path(playlist_t *playlist)
{
if (!playlist)
return NULL;
return playlist->config.path;
}
/**
* playlist_get_index:
* @playlist : Playlist handle.
* @idx : Index of playlist entry.
* @path : Path of playlist entry.
* @core_path : Core path of playlist entry.
* @core_name : Core name of playlist entry.
*
* Gets values of playlist index:
**/
void playlist_get_index(playlist_t *playlist,
size_t idx,
const struct playlist_entry **entry)
{
if (!playlist || !entry || (idx >= RBUF_LEN(playlist->entries)))
return;
*entry = &playlist->entries[idx];
}
/**
* playlist_free_entry:
* @entry : Playlist entry handle.
*
* Frees playlist entry.
**/
static void playlist_free_entry(struct playlist_entry *entry)
{
if (!entry)
return;
if (entry->path)
free(entry->path);
if (entry->label)
free(entry->label);
if (entry->core_path)
free(entry->core_path);
if (entry->core_name)
free(entry->core_name);
if (entry->db_name)
free(entry->db_name);
if (entry->crc32)
free(entry->crc32);
if (entry->subsystem_ident)
free(entry->subsystem_ident);
if (entry->subsystem_name)
free(entry->subsystem_name);
if (entry->runtime_str)
free(entry->runtime_str);
if (entry->last_played_str)
free(entry->last_played_str);
if (entry->subsystem_roms)
string_list_free(entry->subsystem_roms);
entry->path = NULL;
entry->label = NULL;
entry->core_path = NULL;
entry->core_name = NULL;
entry->db_name = NULL;
entry->crc32 = NULL;
entry->subsystem_ident = NULL;
entry->subsystem_name = NULL;
entry->runtime_str = NULL;
entry->last_played_str = NULL;
entry->subsystem_roms = NULL;
entry->runtime_status = PLAYLIST_RUNTIME_UNKNOWN;
entry->runtime_hours = 0;
entry->runtime_minutes = 0;
entry->runtime_seconds = 0;
entry->last_played_year = 0;
entry->last_played_month = 0;
entry->last_played_day = 0;
entry->last_played_hour = 0;
entry->last_played_minute = 0;
entry->last_played_second = 0;
}
/**
* playlist_delete_index:
* @playlist : Playlist handle.
* @idx : Index of playlist entry.
*
* Delete the entry at the index:
**/
void playlist_delete_index(playlist_t *playlist,
size_t idx)
{
size_t len;
struct playlist_entry *entry_to_delete;
if (!playlist)
return;
len = RBUF_LEN(playlist->entries);
if (idx >= len)
return;
/* Free unwanted entry */
entry_to_delete = (struct playlist_entry *)(playlist->entries + idx);
if (entry_to_delete)
playlist_free_entry(entry_to_delete);
/* Shift remaining entries to fill the gap */
memmove(playlist->entries + idx, playlist->entries + idx + 1,
(len - 1 - idx) * sizeof(struct playlist_entry));
RBUF_RESIZE(playlist->entries, len - 1);
playlist->modified = true;
}
/**
* playlist_delete_by_path:
* @playlist : Playlist handle.
* @search_path : Content path.
*
* Deletes all entries with content path
* matching 'search_path'
**/
void playlist_delete_by_path(playlist_t *playlist,
const char *search_path)
{
size_t i = 0;
char real_search_path[PATH_MAX_LENGTH];
real_search_path[0] = '\0';
if (!playlist || string_is_empty(search_path))
return;
/* Get 'real' search path */
strlcpy(real_search_path, search_path, sizeof(real_search_path));
path_resolve_realpath(real_search_path, sizeof(real_search_path), true);
while (i < RBUF_LEN(playlist->entries))
{
if (!playlist_path_equal(real_search_path, playlist->entries[i].path,
&playlist->config))
{
i++;
continue;
}
/* Paths are equal - delete entry */
playlist_delete_index(playlist, i);
/* Entries are shifted up by the delete
* operation - *do not* increment i */
}
}
void playlist_get_index_by_path(playlist_t *playlist,
const char *search_path,
const struct playlist_entry **entry)
{
size_t i, len;
char real_search_path[PATH_MAX_LENGTH];
real_search_path[0] = '\0';
if (!playlist || !entry || string_is_empty(search_path))
return;
/* Get 'real' search path */
strlcpy(real_search_path, search_path, sizeof(real_search_path));
path_resolve_realpath(real_search_path, sizeof(real_search_path), true);
for (i = 0, len = RBUF_LEN(playlist->entries); i < len; i++)
{
if (!playlist_path_equal(real_search_path, playlist->entries[i].path,
&playlist->config))
continue;
*entry = &playlist->entries[i];
break;
}
}
bool playlist_entry_exists(playlist_t *playlist,
const char *path)
{
size_t i, len;
char real_search_path[PATH_MAX_LENGTH];
real_search_path[0] = '\0';
if (!playlist || string_is_empty(path))
return false;
/* Get 'real' search path */
strlcpy(real_search_path, path, sizeof(real_search_path));
path_resolve_realpath(real_search_path, sizeof(real_search_path), true);
for (i = 0, len = RBUF_LEN(playlist->entries); i < len; i++)
{
if (playlist_path_equal(real_search_path, playlist->entries[i].path,
&playlist->config))
return true;
}
return false;
}
void playlist_update(playlist_t *playlist, size_t idx,
const struct playlist_entry *update_entry)
{
struct playlist_entry *entry = NULL;
if (!playlist || idx >= RBUF_LEN(playlist->entries))
return;
entry = &playlist->entries[idx];
if (update_entry->path && (update_entry->path != entry->path))
{
if (entry->path)
free(entry->path);
entry->path = strdup(update_entry->path);
playlist->modified = true;
}
if (update_entry->label && (update_entry->label != entry->label))
{
if (entry->label)
free(entry->label);
entry->label = strdup(update_entry->label);
playlist->modified = true;
}
if (update_entry->core_path && (update_entry->core_path != entry->core_path))
{
if (entry->core_path)
free(entry->core_path);
entry->core_path = NULL;
entry->core_path = strdup(update_entry->core_path);
playlist->modified = true;
}
if (update_entry->core_name && (update_entry->core_name != entry->core_name))
{
if (entry->core_name)
free(entry->core_name);
entry->core_name = strdup(update_entry->core_name);
playlist->modified = true;
}
if (update_entry->db_name && (update_entry->db_name != entry->db_name))
{
if (entry->db_name)
free(entry->db_name);
entry->db_name = strdup(update_entry->db_name);
playlist->modified = true;
}
if (update_entry->crc32 && (update_entry->crc32 != entry->crc32))
{
if (entry->crc32)
free(entry->crc32);
entry->crc32 = strdup(update_entry->crc32);
playlist->modified = true;
}
}
void playlist_update_runtime(playlist_t *playlist, size_t idx,
const struct playlist_entry *update_entry,
bool register_update)
{
struct playlist_entry *entry = NULL;
if (!playlist || idx >= RBUF_LEN(playlist->entries))
return;
entry = &playlist->entries[idx];
if (update_entry->path && (update_entry->path != entry->path))
{
if (entry->path)
free(entry->path);
entry->path = NULL;
entry->path = strdup(update_entry->path);
playlist->modified = playlist->modified || register_update;
}
if (update_entry->core_path && (update_entry->core_path != entry->core_path))
{
if (entry->core_path)
free(entry->core_path);
entry->core_path = NULL;
entry->core_path = strdup(update_entry->core_path);
playlist->modified = playlist->modified || register_update;
}
if (update_entry->runtime_status != entry->runtime_status)
{
entry->runtime_status = update_entry->runtime_status;
playlist->modified = playlist->modified || register_update;
}
if (update_entry->runtime_hours != entry->runtime_hours)
{
entry->runtime_hours = update_entry->runtime_hours;
playlist->modified = playlist->modified || register_update;
}
if (update_entry->runtime_minutes != entry->runtime_minutes)
{
entry->runtime_minutes = update_entry->runtime_minutes;
playlist->modified = playlist->modified || register_update;
}
if (update_entry->runtime_seconds != entry->runtime_seconds)
{
entry->runtime_seconds = update_entry->runtime_seconds;
playlist->modified = playlist->modified || register_update;
}
if (update_entry->last_played_year != entry->last_played_year)
{
entry->last_played_year = update_entry->last_played_year;
playlist->modified = playlist->modified || register_update;
}
if (update_entry->last_played_month != entry->last_played_month)
{
entry->last_played_month = update_entry->last_played_month;
playlist->modified = playlist->modified || register_update;
}
if (update_entry->last_played_day != entry->last_played_day)
{
entry->last_played_day = update_entry->last_played_day;
playlist->modified = playlist->modified || register_update;
}
if (update_entry->last_played_hour != entry->last_played_hour)
{
entry->last_played_hour = update_entry->last_played_hour;
playlist->modified = playlist->modified || register_update;
}
if (update_entry->last_played_minute != entry->last_played_minute)
{
entry->last_played_minute = update_entry->last_played_minute;
playlist->modified = playlist->modified || register_update;
}
if (update_entry->last_played_second != entry->last_played_second)
{
entry->last_played_second = update_entry->last_played_second;
playlist->modified = playlist->modified || register_update;
}
if (update_entry->runtime_str && (update_entry->runtime_str != entry->runtime_str))
{
if (entry->runtime_str)
free(entry->runtime_str);
entry->runtime_str = NULL;
entry->runtime_str = strdup(update_entry->runtime_str);
playlist->modified = playlist->modified || register_update;
}
if (update_entry->last_played_str && (update_entry->last_played_str != entry->last_played_str))
{
if (entry->last_played_str)
free(entry->last_played_str);
entry->last_played_str = NULL;
entry->last_played_str = strdup(update_entry->last_played_str);
playlist->modified = playlist->modified || register_update;
}
}
bool playlist_push_runtime(playlist_t *playlist,
const struct playlist_entry *entry)
{
size_t i, len;
char real_path[PATH_MAX_LENGTH];
char real_core_path[PATH_MAX_LENGTH];
if (!playlist || !entry)
return false;
if (string_is_empty(entry->core_path))
{
RARCH_ERR("cannot push NULL or empty core path into the playlist.\n");
return false;
}
real_path[0] = '\0';
real_core_path[0] = '\0';
/* Get 'real' path */
if (!string_is_empty(entry->path))
{
strlcpy(real_path, entry->path, sizeof(real_path));
path_resolve_realpath(real_path, sizeof(real_path), true);
}
/* Get 'real' core path */
strlcpy(real_core_path, entry->core_path, sizeof(real_core_path));
if (!string_is_equal(real_core_path, FILE_PATH_DETECT) &&
!string_is_equal(real_core_path, FILE_PATH_BUILTIN))
path_resolve_realpath(real_core_path, sizeof(real_core_path), true);
if (string_is_empty(real_core_path))
{
RARCH_ERR("cannot push NULL or empty core path into the playlist.\n");
return false;
}
len = RBUF_LEN(playlist->entries);
for (i = 0; i < len; i++)
{
struct playlist_entry tmp;
const char *entry_path = playlist->entries[i].path;
bool equal_path =
(string_is_empty(real_path) && string_is_empty(entry_path)) ||
playlist_path_equal(real_path, entry_path, &playlist->config);
/* Core name can have changed while still being the same core.
* Differentiate based on the core path only. */
if (!equal_path)
continue;
if (!playlist_core_path_equal(real_core_path, playlist->entries[i].core_path, &playlist->config))
continue;
/* If top entry, we don't want to push a new entry since
* the top and the entry to be pushed are the same. */
if (i == 0)
return false;
/* Seen it before, bump to top. */
tmp = playlist->entries[i];
memmove(playlist->entries + 1, playlist->entries,
i * sizeof(struct playlist_entry));
playlist->entries[0] = tmp;
goto success;
}
if (playlist->config.capacity == 0)
return false;
if (len == playlist->config.capacity)
{
struct playlist_entry *last_entry = &playlist->entries[len - 1];
playlist_free_entry(last_entry);
len--;
}
else
{
/* Allocate memory to fit one more item and resize the buffer */
if (!RBUF_TRYFIT(playlist->entries, len + 1))
return false; /* out of memory */
RBUF_RESIZE(playlist->entries, len + 1);
}
if (playlist->entries)
{
memmove(playlist->entries + 1, playlist->entries,
len * sizeof(struct playlist_entry));
playlist->entries[0].path = NULL;
playlist->entries[0].core_path = NULL;
if (!string_is_empty(real_path))
playlist->entries[0].path = strdup(real_path);
if (!string_is_empty(real_core_path))
playlist->entries[0].core_path = strdup(real_core_path);
playlist->entries[0].runtime_status = entry->runtime_status;
playlist->entries[0].runtime_hours = entry->runtime_hours;
playlist->entries[0].runtime_minutes = entry->runtime_minutes;
playlist->entries[0].runtime_seconds = entry->runtime_seconds;
playlist->entries[0].last_played_year = entry->last_played_year;
playlist->entries[0].last_played_month = entry->last_played_month;
playlist->entries[0].last_played_day = entry->last_played_day;
playlist->entries[0].last_played_hour = entry->last_played_hour;
playlist->entries[0].last_played_minute = entry->last_played_minute;
playlist->entries[0].last_played_second = entry->last_played_second;
playlist->entries[0].runtime_str = NULL;
playlist->entries[0].last_played_str = NULL;
if (!string_is_empty(entry->runtime_str))
playlist->entries[0].runtime_str = strdup(entry->runtime_str);
if (!string_is_empty(entry->last_played_str))
playlist->entries[0].last_played_str = strdup(entry->last_played_str);
}
success:
playlist->modified = true;
return true;
}
/**
* playlist_resolve_path:
* @mode : PLAYLIST_LOAD or PLAYLIST_SAVE
* @path : The path to be modified
*
* Resolves the path of an item, such as the content path or path to the core, to a format
* appropriate for saving or loading depending on the @mode parameter
*
* Can be platform specific. File paths for saving can be abbreviated to avoid saving absolute
* paths, as the base directory (home or application dir) may change after each subsequent
* install (iOS)
**/
void playlist_resolve_path(enum playlist_file_mode mode,
char *path, size_t len)
{
#ifdef HAVE_COCOATOUCH
char tmp[PATH_MAX_LENGTH];
if (mode == PLAYLIST_LOAD)
{
fill_pathname_expand_special(tmp, path, sizeof(tmp));
strlcpy(path, tmp, len);
}
else
{
/* iOS needs to call realpath here since the call
* above fails due to possibly buffer related issues.
* Try to expand the path to ensure that it gets saved
* correctly. The path can be abbreviated if saving to
* a playlist from another playlist (ex: content history to favorites)
*/
char tmp2[PATH_MAX_LENGTH];
fill_pathname_expand_special(tmp, path, sizeof(tmp));
realpath(tmp, tmp2);
fill_pathname_abbreviate_special(path, tmp2, len);
}
#else
if (mode == PLAYLIST_LOAD)
return;
path_resolve_realpath(path, len, true);
#endif
}
/**
* playlist_push:
* @playlist : Playlist handle.
*
* Push entry to top of playlist.
**/
bool playlist_push(playlist_t *playlist,
const struct playlist_entry *entry)
{
size_t i, len;
char real_path[PATH_MAX_LENGTH];
char real_core_path[PATH_MAX_LENGTH];
const char *core_name = entry->core_name;
bool entry_updated = false;
real_path[0] = '\0';
real_core_path[0] = '\0';
if (!playlist || !entry)
return false;
if (string_is_empty(entry->core_path))
{
RARCH_ERR("cannot push NULL or empty core path into the playlist.\n");
return false;
}
/* Get 'real' path */
if (!string_is_empty(entry->path))
{
strlcpy(real_path, entry->path, sizeof(real_path));
playlist_resolve_path(PLAYLIST_SAVE, real_path, sizeof(real_path));
}
/* Get 'real' core path */
strlcpy(real_core_path, entry->core_path, sizeof(real_core_path));
if (!string_is_equal(real_core_path, FILE_PATH_DETECT) &&
!string_is_equal(real_core_path, FILE_PATH_BUILTIN))
playlist_resolve_path(PLAYLIST_SAVE, real_core_path,
sizeof(real_core_path));
if (string_is_empty(real_core_path))
{
RARCH_ERR("cannot push NULL or empty core path into the playlist.\n");
return false;
}
if (string_is_empty(core_name))
{
static char base_path[255] = {0};
fill_pathname_base_noext(base_path, real_core_path, sizeof(base_path));
core_name = base_path;
if (string_is_empty(core_name))
{
RARCH_ERR("cannot push NULL or empty core name into the playlist.\n");
return false;
}
}
len = RBUF_LEN(playlist->entries);
for (i = 0; i < len; i++)
{
struct playlist_entry tmp;
const char *entry_path = playlist->entries[i].path;
bool equal_path =
(string_is_empty(real_path) && string_is_empty(entry_path)) ||
playlist_path_equal(real_path, entry_path, &playlist->config);
/* Core name can have changed while still being the same core.
* Differentiate based on the core path only. */
if (!equal_path)
continue;
if (!playlist_core_path_equal(real_core_path, playlist->entries[i].core_path, &playlist->config))
continue;
if ( !string_is_empty(entry->subsystem_ident)
&& !string_is_empty(playlist->entries[i].subsystem_ident)
&& !string_is_equal(playlist->entries[i].subsystem_ident, entry->subsystem_ident))
continue;
if ( string_is_empty(entry->subsystem_ident)
&& !string_is_empty(playlist->entries[i].subsystem_ident))
continue;
if ( !string_is_empty(entry->subsystem_ident)
&& string_is_empty(playlist->entries[i].subsystem_ident))
continue;
if ( !string_is_empty(entry->subsystem_name)
&& !string_is_empty(playlist->entries[i].subsystem_name)
&& !string_is_equal(playlist->entries[i].subsystem_name, entry->subsystem_name))
continue;
if ( string_is_empty(entry->subsystem_name)
&& !string_is_empty(playlist->entries[i].subsystem_name))
continue;
if ( !string_is_empty(entry->subsystem_name)
&& string_is_empty(playlist->entries[i].subsystem_name))
continue;
if (entry->subsystem_roms)
{
unsigned j;
const struct string_list *roms = playlist->entries[i].subsystem_roms;
bool unequal = false;
if (entry->subsystem_roms->size != roms->size)
continue;
for (j = 0; j < entry->subsystem_roms->size; j++)
{
char real_rom_path[PATH_MAX_LENGTH];
real_rom_path[0] = '\0';
if (!string_is_empty(entry->subsystem_roms->elems[j].data))
{
strlcpy(real_rom_path, entry->subsystem_roms->elems[j].data, sizeof(real_rom_path));
path_resolve_realpath(real_rom_path, sizeof(real_rom_path), true);
}
if (!playlist_path_equal(real_rom_path, roms->elems[j].data,
&playlist->config))
{
unequal = true;
break;
}
}
if (unequal)
continue;
}
/* If content was previously loaded via file browser
* or command line, certain entry values will be missing.
* If we are now loading the same content from a playlist,
* fill in any blanks */
if (!playlist->entries[i].label && !string_is_empty(entry->label))
{
playlist->entries[i].label = strdup(entry->label);
entry_updated = true;
}
if (!playlist->entries[i].crc32 && !string_is_empty(entry->crc32))
{
playlist->entries[i].crc32 = strdup(entry->crc32);
entry_updated = true;
}
if (!playlist->entries[i].db_name && !string_is_empty(entry->db_name))
{
playlist->entries[i].db_name = strdup(entry->db_name);
entry_updated = true;
}
/* If top entry, we don't want to push a new entry since
* the top and the entry to be pushed are the same. */
if (i == 0)
{
if (entry_updated)
goto success;
return false;
}
/* Seen it before, bump to top. */
tmp = playlist->entries[i];
memmove(playlist->entries + 1, playlist->entries,
i * sizeof(struct playlist_entry));
playlist->entries[0] = tmp;
goto success;
}
if (playlist->config.capacity == 0)
return false;
if (len == playlist->config.capacity)
{
struct playlist_entry *last_entry = &playlist->entries[len - 1];
playlist_free_entry(last_entry);
len--;
}
else
{
/* Allocate memory to fit one more item and resize the buffer */
if (!RBUF_TRYFIT(playlist->entries, len + 1))
return false; /* out of memory */
RBUF_RESIZE(playlist->entries, len + 1);
}
if (playlist->entries)
{
memmove(playlist->entries + 1, playlist->entries,
len * sizeof(struct playlist_entry));
playlist->entries[0].path = NULL;
playlist->entries[0].label = NULL;
playlist->entries[0].core_path = NULL;
playlist->entries[0].core_name = NULL;
playlist->entries[0].db_name = NULL;
playlist->entries[0].crc32 = NULL;
playlist->entries[0].subsystem_ident = NULL;
playlist->entries[0].subsystem_name = NULL;
playlist->entries[0].runtime_str = NULL;
playlist->entries[0].last_played_str = NULL;
playlist->entries[0].subsystem_roms = NULL;
playlist->entries[0].runtime_status = PLAYLIST_RUNTIME_UNKNOWN;
playlist->entries[0].runtime_hours = 0;
playlist->entries[0].runtime_minutes = 0;
playlist->entries[0].runtime_seconds = 0;
playlist->entries[0].last_played_year = 0;
playlist->entries[0].last_played_month = 0;
playlist->entries[0].last_played_day = 0;
playlist->entries[0].last_played_hour = 0;
playlist->entries[0].last_played_minute = 0;
playlist->entries[0].last_played_second = 0;
if (!string_is_empty(real_path))
playlist->entries[0].path = strdup(real_path);
if (!string_is_empty(entry->label))
playlist->entries[0].label = strdup(entry->label);
if (!string_is_empty(real_core_path))
playlist->entries[0].core_path = strdup(real_core_path);
if (!string_is_empty(core_name))
playlist->entries[0].core_name = strdup(core_name);
if (!string_is_empty(entry->db_name))
playlist->entries[0].db_name = strdup(entry->db_name);
if (!string_is_empty(entry->crc32))
playlist->entries[0].crc32 = strdup(entry->crc32);
if (!string_is_empty(entry->subsystem_ident))
playlist->entries[0].subsystem_ident = strdup(entry->subsystem_ident);
if (!string_is_empty(entry->subsystem_name))
playlist->entries[0].subsystem_name = strdup(entry->subsystem_name);
if (entry->subsystem_roms)
{
union string_list_elem_attr attributes = {0};
playlist->entries[0].subsystem_roms = string_list_new();
for (i = 0; i < entry->subsystem_roms->size; i++)
string_list_append(playlist->entries[0].subsystem_roms, entry->subsystem_roms->elems[i].data, attributes);
}
}
success:
playlist->modified = true;
return true;
}
static JSON_Writer_HandlerResult JSONOutputHandler(JSON_Writer writer, const char *pBytes, size_t length)
{
JSONContext *context = (JSONContext*)JSON_Writer_GetUserData(writer);
(void)writer; /* unused */
return intfstream_write(context->file, pBytes, length) == length ? JSON_Writer_Continue : JSON_Writer_Abort;
}
static void JSONLogError(JSONContext *pCtx)
{
if (pCtx->parser && JSON_Parser_GetError(pCtx->parser) != JSON_Error_AbortedByHandler)
{
JSON_Error error = JSON_Parser_GetError(pCtx->parser);
JSON_Location errorLocation = { 0, 0, 0 };
(void)JSON_Parser_GetErrorLocation(pCtx->parser, &errorLocation);
RARCH_WARN("Error: Invalid JSON at line %d, column %d (input byte %d) - %s.\n",
(int)errorLocation.line + 1,
(int)errorLocation.column + 1,
(int)errorLocation.byte,
JSON_ErrorString(error));
}
else if (pCtx->writer && JSON_Writer_GetError(pCtx->writer) != JSON_Error_AbortedByHandler)
{
RARCH_WARN("Error: could not write output - %s.\n", JSON_ErrorString(JSON_Writer_GetError(pCtx->writer)));
}
}
void playlist_write_runtime_file(playlist_t *playlist)
{
size_t i, len;
intfstream_t *file = NULL;
JSONContext context = {0};
if (!playlist || !playlist->modified)
return;
file = intfstream_open_file(playlist->config.path,
RETRO_VFS_FILE_ACCESS_WRITE, RETRO_VFS_FILE_ACCESS_HINT_NONE);
if (!file)
{
RARCH_ERR("Failed to write to playlist file: %s\n", playlist->config.path);
return;
}
context.writer = JSON_Writer_Create(NULL);
context.file = file;
if (!context.writer)
{
RARCH_ERR("Failed to create JSON writer\n");
goto end;
}
JSON_Writer_SetOutputEncoding(context.writer, JSON_UTF8);
JSON_Writer_SetOutputHandler(context.writer, &JSONOutputHandler);
JSON_Writer_SetUserData(context.writer, &context);
JSON_Writer_WriteStartObject(context.writer);
JSON_Writer_WriteNewLine(context.writer);
JSON_Writer_WriteSpace(context.writer, 2);
JSON_Writer_WriteString(context.writer, "version",
STRLEN_CONST("version"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
JSON_Writer_WriteSpace(context.writer, 1);
JSON_Writer_WriteString(context.writer, "1.0",
STRLEN_CONST("1.0"), JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
JSON_Writer_WriteNewLine(context.writer);
JSON_Writer_WriteSpace(context.writer, 2);
JSON_Writer_WriteString(context.writer, "items",
STRLEN_CONST("items"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
JSON_Writer_WriteSpace(context.writer, 1);
JSON_Writer_WriteStartArray(context.writer);
JSON_Writer_WriteNewLine(context.writer);
for (i = 0, len = RBUF_LEN(playlist->entries); i < len; i++)
{
JSON_Writer_WriteSpace(context.writer, 4);
JSON_Writer_WriteStartObject(context.writer);
JSON_Writer_WriteNewLine(context.writer);
JSON_Writer_WriteSpace(context.writer, 6);
JSON_Writer_WriteString(context.writer, "path",
STRLEN_CONST("path"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
JSON_Writer_WriteSpace(context.writer, 1);
JSON_Writer_WriteString(context.writer,
playlist->entries[i].path
? playlist->entries[i].path
: "",
playlist->entries[i].path
? strlen(playlist->entries[i].path)
: 0,
JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
JSON_Writer_WriteNewLine(context.writer);
JSON_Writer_WriteSpace(context.writer, 6);
JSON_Writer_WriteString(context.writer, "core_path",
STRLEN_CONST("core_path"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
JSON_Writer_WriteSpace(context.writer, 1);
JSON_Writer_WriteString(context.writer,
playlist->entries[i].core_path
? playlist->entries[i].core_path
: "",
playlist->entries[i].core_path
? strlen(playlist->entries[i].core_path)
: 0,
JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
JSON_Writer_WriteNewLine(context.writer);
{
char tmp[32] = {0};
snprintf(tmp, sizeof(tmp), "%u", playlist->entries[i].runtime_hours);
JSON_Writer_WriteSpace(context.writer, 6);
JSON_Writer_WriteString(context.writer, "runtime_hours",
STRLEN_CONST("runtime_hours"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
JSON_Writer_WriteSpace(context.writer, 1);
JSON_Writer_WriteNumber(context.writer, tmp, strlen(tmp), JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
JSON_Writer_WriteNewLine(context.writer);
memset(tmp, 0, sizeof(tmp));
snprintf(tmp, sizeof(tmp), "%u", playlist->entries[i].runtime_minutes);
JSON_Writer_WriteSpace(context.writer, 6);
JSON_Writer_WriteString(context.writer, "runtime_minutes",
STRLEN_CONST("runtime_minutes"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
JSON_Writer_WriteSpace(context.writer, 1);
JSON_Writer_WriteNumber(context.writer, tmp, strlen(tmp), JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
JSON_Writer_WriteNewLine(context.writer);
memset(tmp, 0, sizeof(tmp));
snprintf(tmp, sizeof(tmp), "%u", playlist->entries[i].runtime_seconds);
JSON_Writer_WriteSpace(context.writer, 6);
JSON_Writer_WriteString(context.writer, "runtime_seconds",
STRLEN_CONST("runtime_seconds"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
JSON_Writer_WriteSpace(context.writer, 1);
JSON_Writer_WriteNumber(context.writer, tmp, strlen(tmp), JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
JSON_Writer_WriteNewLine(context.writer);
memset(tmp, 0, sizeof(tmp));
snprintf(tmp, sizeof(tmp), "%u", playlist->entries[i].last_played_year);
JSON_Writer_WriteSpace(context.writer, 6);
JSON_Writer_WriteString(context.writer, "last_played_year",
STRLEN_CONST("last_played_year"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
JSON_Writer_WriteSpace(context.writer, 1);
JSON_Writer_WriteNumber(context.writer, tmp, strlen(tmp), JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
JSON_Writer_WriteNewLine(context.writer);
memset(tmp, 0, sizeof(tmp));
snprintf(tmp, sizeof(tmp), "%u", playlist->entries[i].last_played_month);
JSON_Writer_WriteSpace(context.writer, 6);
JSON_Writer_WriteString(context.writer, "last_played_month",
STRLEN_CONST("last_played_month"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
JSON_Writer_WriteSpace(context.writer, 1);
JSON_Writer_WriteNumber(context.writer, tmp, strlen(tmp), JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
JSON_Writer_WriteNewLine(context.writer);
memset(tmp, 0, sizeof(tmp));
snprintf(tmp, sizeof(tmp), "%u", playlist->entries[i].last_played_day);
JSON_Writer_WriteSpace(context.writer, 6);
JSON_Writer_WriteString(context.writer, "last_played_day",
STRLEN_CONST("last_played_day"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
JSON_Writer_WriteSpace(context.writer, 1);
JSON_Writer_WriteNumber(context.writer, tmp,
strlen(tmp), JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
JSON_Writer_WriteNewLine(context.writer);
memset(tmp, 0, sizeof(tmp));
snprintf(tmp, sizeof(tmp), "%u", playlist->entries[i].last_played_hour);
JSON_Writer_WriteSpace(context.writer, 6);
JSON_Writer_WriteString(context.writer, "last_played_hour",
STRLEN_CONST("last_played_hour"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
JSON_Writer_WriteSpace(context.writer, 1);
JSON_Writer_WriteNumber(context.writer, tmp, strlen(tmp), JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
JSON_Writer_WriteNewLine(context.writer);
memset(tmp, 0, sizeof(tmp));
snprintf(tmp, sizeof(tmp), "%u", playlist->entries[i].last_played_minute);
JSON_Writer_WriteSpace(context.writer, 6);
JSON_Writer_WriteString(context.writer, "last_played_minute",
STRLEN_CONST("last_played_minute"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
JSON_Writer_WriteSpace(context.writer, 1);
JSON_Writer_WriteNumber(context.writer, tmp, strlen(tmp), JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
JSON_Writer_WriteNewLine(context.writer);
memset(tmp, 0, sizeof(tmp));
snprintf(tmp, sizeof(tmp), "%u", playlist->entries[i].last_played_second);
JSON_Writer_WriteSpace(context.writer, 6);
JSON_Writer_WriteString(context.writer, "last_played_second",
STRLEN_CONST("last_played_second"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
JSON_Writer_WriteSpace(context.writer, 1);
JSON_Writer_WriteNumber(context.writer, tmp,
strlen(tmp), JSON_UTF8);
JSON_Writer_WriteNewLine(context.writer);
}
JSON_Writer_WriteSpace(context.writer, 4);
JSON_Writer_WriteEndObject(context.writer);
if (i < len - 1)
JSON_Writer_WriteComma(context.writer);
JSON_Writer_WriteNewLine(context.writer);
}
JSON_Writer_WriteSpace(context.writer, 2);
JSON_Writer_WriteEndArray(context.writer);
JSON_Writer_WriteNewLine(context.writer);
JSON_Writer_WriteEndObject(context.writer);
JSON_Writer_WriteNewLine(context.writer);
JSON_Writer_Free(context.writer);
playlist->modified = false;
playlist->old_format = false;
playlist->compressed = false;
RARCH_LOG("[Playlist]: Written to playlist file: %s\n", playlist->config.path);
end:
intfstream_close(file);
free(file);
}
/* No-op versions of JSON whitespace writers,
* used when generating compressed output */
static JSON_Status JSON_CALL JSON_Writer_WriteNewLine_NULL(JSON_Writer writer)
{
return JSON_Success;
}
static JSON_Status JSON_CALL JSON_Writer_WriteSpace_NULL(JSON_Writer writer, size_t numberOfSpaces)
{
return JSON_Success;
}
void playlist_write_file(playlist_t *playlist)
{
size_t i, len;
intfstream_t *file = NULL;
bool compressed = false;
/* Playlist will be written if any of the
* following are true:
* > 'modified' flag is set
* > Current playlist format (old/new) does not
* match requested
* > Current playlist compression status does
* not match requested */
if (!playlist ||
!(playlist->modified ||
#if defined(HAVE_ZLIB)
(playlist->compressed != playlist->config.compress) ||
#endif
(playlist->old_format != playlist->config.old_format)))
return;
#if defined(HAVE_ZLIB)
if (playlist->config.compress)
file = intfstream_open_rzip_file(playlist->config.path,
RETRO_VFS_FILE_ACCESS_WRITE);
else
#endif
file = intfstream_open_file(playlist->config.path,
RETRO_VFS_FILE_ACCESS_WRITE,
RETRO_VFS_FILE_ACCESS_HINT_NONE);
if (!file)
{
RARCH_ERR("Failed to write to playlist file: %s\n", playlist->config.path);
return;
}
/* Get current file compression state */
compressed = intfstream_is_compressed(file);
#ifdef RARCH_INTERNAL
if (playlist->config.old_format)
{
for (i = 0, len = RBUF_LEN(playlist->entries); i < len; i++)
intfstream_printf(file, "%s\n%s\n%s\n%s\n%s\n%s\n",
playlist->entries[i].path ? playlist->entries[i].path : "",
playlist->entries[i].label ? playlist->entries[i].label : "",
playlist->entries[i].core_path ? playlist->entries[i].core_path : "",
playlist->entries[i].core_name ? playlist->entries[i].core_name : "",
playlist->entries[i].crc32 ? playlist->entries[i].crc32 : "",
playlist->entries[i].db_name ? playlist->entries[i].db_name : ""
);
/* Add metadata lines
* > We add these at the end of the file to prevent
* breakage if the playlist is loaded with an older
* version of RetroArch */
intfstream_printf(
file,
"default_core_path = \"%s\"\n"
"default_core_name = \"%s\"\n"
"label_display_mode = \"%d\"\n"
"thumbnail_mode = \"%d|%d\"\n"
"sort_mode = \"%d\"\n",
playlist->default_core_path ? playlist->default_core_path : "",
playlist->default_core_name ? playlist->default_core_name : "",
playlist->label_display_mode,
playlist->right_thumbnail_mode, playlist->left_thumbnail_mode,
playlist->sort_mode);
playlist->old_format = true;
}
else
#endif
{
char uint_str[4];
JSONContext context = {0};
/* Assign JSON whitespace functions
* > When compressing playlists, human readability
* is not a factor - can skip all indentation
* and new line characters
* > Create these function pointers locally to
* ensure thread safety */
JSON_Status (JSON_CALL *json_write_new_line)(JSON_Writer writer) =
compressed ?
JSON_Writer_WriteNewLine_NULL :
JSON_Writer_WriteNewLine;
JSON_Status (JSON_CALL *json_write_space)(JSON_Writer writer, size_t numberOfSpaces) =
compressed ?
JSON_Writer_WriteSpace_NULL :
JSON_Writer_WriteSpace;
context.writer = JSON_Writer_Create(NULL);
context.file = file;
if (!context.writer)
{
RARCH_ERR("Failed to create JSON writer\n");
goto end;
}
JSON_Writer_SetOutputEncoding(context.writer, JSON_UTF8);
JSON_Writer_SetOutputHandler(context.writer, &JSONOutputHandler);
JSON_Writer_SetUserData(context.writer, &context);
JSON_Writer_WriteStartObject(context.writer);
json_write_new_line(context.writer);
json_write_space(context.writer, 2);
JSON_Writer_WriteString(context.writer, "version",
STRLEN_CONST("version"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
json_write_space(context.writer, 1);
JSON_Writer_WriteString(context.writer, "1.4",
STRLEN_CONST("1.4"), JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
json_write_new_line(context.writer);
json_write_space(context.writer, 2);
JSON_Writer_WriteString(context.writer, "default_core_path",
STRLEN_CONST("default_core_path"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
json_write_space(context.writer, 1);
JSON_Writer_WriteString(context.writer,
playlist->default_core_path
? playlist->default_core_path
: "",
playlist->default_core_path
? strlen(playlist->default_core_path)
: 0,
JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
json_write_new_line(context.writer);
json_write_space(context.writer, 2);
JSON_Writer_WriteString(context.writer, "default_core_name",
STRLEN_CONST("default_core_name"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
json_write_space(context.writer, 1);
JSON_Writer_WriteString(context.writer,
playlist->default_core_name
? playlist->default_core_name
: "",
playlist->default_core_name
? strlen(playlist->default_core_name)
: 0,
JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
json_write_new_line(context.writer);
if (!string_is_empty(playlist->base_content_directory))
{
json_write_space(context.writer, 2);
JSON_Writer_WriteString(context.writer, "base_content_directory",
STRLEN_CONST("base_content_directory"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
json_write_space(context.writer, 1);
JSON_Writer_WriteString(context.writer,
playlist->base_content_directory,
strlen(playlist->base_content_directory),
JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
json_write_new_line(context.writer);
}
uint_str[0] = '\0';
snprintf(uint_str, sizeof(uint_str), "%u", playlist->label_display_mode);
json_write_space(context.writer, 2);
JSON_Writer_WriteString(context.writer, "label_display_mode",
STRLEN_CONST("label_display_mode"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
json_write_space(context.writer, 1);
JSON_Writer_WriteNumber(context.writer, uint_str,
strlen(uint_str), JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
json_write_new_line(context.writer);
uint_str[0] = '\0';
snprintf(uint_str, sizeof(uint_str), "%u", playlist->right_thumbnail_mode);
json_write_space(context.writer, 2);
JSON_Writer_WriteString(context.writer, "right_thumbnail_mode",
STRLEN_CONST("right_thumbnail_mode"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
json_write_space(context.writer, 1);
JSON_Writer_WriteNumber(context.writer, uint_str,
strlen(uint_str), JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
json_write_new_line(context.writer);
uint_str[0] = '\0';
snprintf(uint_str, sizeof(uint_str), "%u", playlist->left_thumbnail_mode);
json_write_space(context.writer, 2);
JSON_Writer_WriteString(context.writer, "left_thumbnail_mode",
STRLEN_CONST("left_thumbnail_mode"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
json_write_space(context.writer, 1);
JSON_Writer_WriteNumber(context.writer, uint_str,
strlen(uint_str), JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
json_write_new_line(context.writer);
uint_str[0] = '\0';
snprintf(uint_str, sizeof(uint_str), "%u", playlist->sort_mode);
json_write_space(context.writer, 2);
JSON_Writer_WriteString(context.writer, "sort_mode",
STRLEN_CONST("sort_mode"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
json_write_space(context.writer, 1);
JSON_Writer_WriteNumber(context.writer, uint_str,
strlen(uint_str), JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
json_write_new_line(context.writer);
json_write_space(context.writer, 2);
JSON_Writer_WriteString(context.writer, "items",
STRLEN_CONST("items"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
json_write_space(context.writer, 1);
JSON_Writer_WriteStartArray(context.writer);
json_write_new_line(context.writer);
for (i = 0, len = RBUF_LEN(playlist->entries); i < len; i++)
{
json_write_space(context.writer, 4);
JSON_Writer_WriteStartObject(context.writer);
json_write_new_line(context.writer);
json_write_space(context.writer, 6);
JSON_Writer_WriteString(context.writer, "path",
STRLEN_CONST("path"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
json_write_space(context.writer, 1);
JSON_Writer_WriteString(context.writer,
playlist->entries[i].path
? playlist->entries[i].path
: "",
playlist->entries[i].path
? strlen(playlist->entries[i].path)
: 0,
JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
json_write_new_line(context.writer);
json_write_space(context.writer, 6);
JSON_Writer_WriteString(context.writer, "label",
STRLEN_CONST("label"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
json_write_space(context.writer, 1);
JSON_Writer_WriteString(context.writer,
playlist->entries[i].label
? playlist->entries[i].label
: "",
playlist->entries[i].label
? strlen(playlist->entries[i].label)
: 0,
JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
json_write_new_line(context.writer);
json_write_space(context.writer, 6);
JSON_Writer_WriteString(context.writer, "core_path",
STRLEN_CONST("core_path"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
json_write_space(context.writer, 1);
JSON_Writer_WriteString(context.writer,
playlist->entries[i].core_path
? playlist->entries[i].core_path
: "",
playlist->entries[i].core_path
? strlen(playlist->entries[i].core_path)
: 0,
JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
json_write_new_line(context.writer);
json_write_space(context.writer, 6);
JSON_Writer_WriteString(context.writer, "core_name",
STRLEN_CONST("core_name"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
json_write_space(context.writer, 1);
JSON_Writer_WriteString(context.writer,
playlist->entries[i].core_name
? playlist->entries[i].core_name
: "",
playlist->entries[i].core_name
? strlen(playlist->entries[i].core_name)
: 0,
JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
json_write_new_line(context.writer);
json_write_space(context.writer, 6);
JSON_Writer_WriteString(context.writer, "crc32",
STRLEN_CONST("crc32"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
json_write_space(context.writer, 1);
JSON_Writer_WriteString(context.writer, playlist->entries[i].crc32 ? playlist->entries[i].crc32 : "",
playlist->entries[i].crc32
? strlen(playlist->entries[i].crc32)
: 0,
JSON_UTF8);
JSON_Writer_WriteComma(context.writer);
json_write_new_line(context.writer);
json_write_space(context.writer, 6);
JSON_Writer_WriteString(context.writer, "db_name",
STRLEN_CONST("db_name"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
json_write_space(context.writer, 1);
JSON_Writer_WriteString(context.writer, playlist->entries[i].db_name ? playlist->entries[i].db_name : "",
playlist->entries[i].db_name
? strlen(playlist->entries[i].db_name)
: 0,
JSON_UTF8);
if (!string_is_empty(playlist->entries[i].subsystem_ident))
{
JSON_Writer_WriteComma(context.writer);
json_write_new_line(context.writer);
json_write_space(context.writer, 6);
JSON_Writer_WriteString(context.writer, "subsystem_ident",
STRLEN_CONST("subsystem_ident"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
json_write_space(context.writer, 1);
JSON_Writer_WriteString(context.writer, playlist->entries[i].subsystem_ident ? playlist->entries[i].subsystem_ident : "",
playlist->entries[i].subsystem_ident
? strlen(playlist->entries[i].subsystem_ident)
: 0,
JSON_UTF8);
}
if (!string_is_empty(playlist->entries[i].subsystem_name))
{
JSON_Writer_WriteComma(context.writer);
json_write_new_line(context.writer);
json_write_space(context.writer, 6);
JSON_Writer_WriteString(context.writer, "subsystem_name",
STRLEN_CONST("subsystem_name"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
json_write_space(context.writer, 1);
JSON_Writer_WriteString(context.writer,
playlist->entries[i].subsystem_name
? playlist->entries[i].subsystem_name
: "",
playlist->entries[i].subsystem_name
? strlen(playlist->entries[i].subsystem_name)
: 0, JSON_UTF8);
}
if ( playlist->entries[i].subsystem_roms &&
playlist->entries[i].subsystem_roms->size > 0)
{
unsigned j;
JSON_Writer_WriteComma(context.writer);
json_write_new_line(context.writer);
json_write_space(context.writer, 6);
JSON_Writer_WriteString(context.writer, "subsystem_roms",
STRLEN_CONST("subsystem_roms"), JSON_UTF8);
JSON_Writer_WriteColon(context.writer);
json_write_space(context.writer, 1);
JSON_Writer_WriteStartArray(context.writer);
json_write_new_line(context.writer);
for (j = 0; j < playlist->entries[i].subsystem_roms->size; j++)
{
const struct string_list *roms = playlist->entries[i].subsystem_roms;
json_write_space(context.writer, 8);
JSON_Writer_WriteString(context.writer,
!string_is_empty(roms->elems[j].data)
? roms->elems[j].data
: "",
!string_is_empty(roms->elems[j].data)
? strlen(roms->elems[j].data)
: 0,
JSON_UTF8);
if (j < playlist->entries[i].subsystem_roms->size - 1)
{
JSON_Writer_WriteComma(context.writer);
json_write_new_line(context.writer);
}
}
json_write_new_line(context.writer);
json_write_space(context.writer, 6);
JSON_Writer_WriteEndArray(context.writer);
}
json_write_new_line(context.writer);
json_write_space(context.writer, 4);
JSON_Writer_WriteEndObject(context.writer);
if (i < len - 1)
JSON_Writer_WriteComma(context.writer);
json_write_new_line(context.writer);
}
json_write_space(context.writer, 2);
JSON_Writer_WriteEndArray(context.writer);
json_write_new_line(context.writer);
JSON_Writer_WriteEndObject(context.writer);
json_write_new_line(context.writer);
JSON_Writer_Free(context.writer);
playlist->old_format = false;
}
playlist->modified = false;
playlist->compressed = compressed;
RARCH_LOG("[Playlist]: Written to playlist file: %s\n", playlist->config.path);
end:
intfstream_close(file);
free(file);
}
/**
* playlist_free:
* @playlist : Playlist handle.
*
* Frees playlist handle.
*/
void playlist_free(playlist_t *playlist)
{
size_t i, len;
if (!playlist)
return;
if (playlist->default_core_path)
free(playlist->default_core_path);
playlist->default_core_path = NULL;
if (playlist->default_core_name)
free(playlist->default_core_name);
playlist->default_core_name = NULL;
if (playlist->base_content_directory)
free(playlist->base_content_directory);
playlist->base_content_directory = NULL;
if (playlist->entries)
{
for (i = 0, len = RBUF_LEN(playlist->entries); i < len; i++)
{
struct playlist_entry *entry = &playlist->entries[i];
if (entry)
playlist_free_entry(entry);
}
RBUF_FREE(playlist->entries);
}
free(playlist);
}
/**
* playlist_clear:
* @playlist : Playlist handle.
*
* Clears all playlist entries in playlist.
**/
void playlist_clear(playlist_t *playlist)
{
size_t i, len;
if (!playlist)
return;
for (i = 0, len = RBUF_LEN(playlist->entries); i < len; i++)
{
struct playlist_entry *entry = &playlist->entries[i];
if (entry)
playlist_free_entry(entry);
}
RBUF_CLEAR(playlist->entries);
}
/**
* playlist_size:
* @playlist : Playlist handle.
*
* Gets size of playlist.
* Returns: size of playlist.
**/
size_t playlist_size(playlist_t *playlist)
{
if (!playlist)
return 0;
return RBUF_LEN(playlist->entries);
}
/**
* playlist_capacity:
* @playlist : Playlist handle.
*
* Gets maximum capacity of playlist.
* Returns: maximum capacity of playlist.
**/
size_t playlist_capacity(playlist_t *playlist)
{
if (!playlist)
return 0;
return playlist->config.capacity;
}
static JSON_Parser_HandlerResult JSONStartArrayHandler(JSON_Parser parser)
{
JSONContext *pCtx = (JSONContext*)JSON_Parser_GetUserData(parser);
pCtx->array_depth++;
if (pCtx->object_depth == 1)
{
if (string_is_equal(pCtx->current_meta_string, "items") && pCtx->array_depth == 1)
pCtx->in_items = true;
}
else if (pCtx->object_depth == 2)
{
if (pCtx->array_depth == 2)
if (string_is_equal(pCtx->current_items_string, "subsystem_roms"))
pCtx->in_subsystem_roms = true;
}
return JSON_Parser_Continue;
}
static JSON_Parser_HandlerResult JSONEndArrayHandler(JSON_Parser parser)
{
JSONContext *pCtx = (JSONContext*)JSON_Parser_GetUserData(parser);
retro_assert(pCtx->array_depth > 0);
pCtx->array_depth--;
if (pCtx->object_depth == 1)
{
if (pCtx->in_items && string_is_equal(pCtx->current_meta_string, "items") && pCtx->array_depth == 0)
{
free(pCtx->current_meta_string);
pCtx->current_meta_string = NULL;
pCtx->in_items = false;
if (pCtx->current_items_string)
{
free(pCtx->current_items_string);
pCtx->current_items_string = NULL;
}
}
}
else if (pCtx->object_depth == 2)
{
if (pCtx->in_subsystem_roms && string_is_equal(pCtx->current_items_string, "subsystem_roms") && pCtx->array_depth == 1)
pCtx->in_subsystem_roms = false;
}
return JSON_Parser_Continue;
}
static JSON_Parser_HandlerResult JSONStartObjectHandler(JSON_Parser parser)
{
JSONContext *pCtx = (JSONContext*)JSON_Parser_GetUserData(parser);
pCtx->object_depth++;
if (pCtx->in_items && pCtx->object_depth == 2)
{
if ((pCtx->array_depth == 1) && !pCtx->capacity_exceeded)
{
size_t len = RBUF_LEN(pCtx->playlist->entries);
if (len < pCtx->playlist->config.capacity)
{
/* Allocate memory to fit one more item but don't resize the
* buffer just yet, wait until JSONEndObjectHandler for that */
if (!RBUF_TRYFIT(pCtx->playlist->entries, len + 1))
{
pCtx->out_of_memory = true;
return JSON_Parser_Abort;
}
pCtx->current_entry = &pCtx->playlist->entries[len];
memset(pCtx->current_entry, 0, sizeof(*pCtx->current_entry));
}
else
{
/* Hit max item limit.
* Note: We can't just abort here, since there may
* be more metadata to read at the end of the file... */
RARCH_WARN("JSON file contains more entries than current playlist capacity. Excess entries will be discarded.\n");
pCtx->capacity_exceeded = true;
pCtx->current_entry = NULL;
/* In addition, since we are discarding excess entries,
* the playlist must be flagged as being modified
* (i.e. the playlist is not the same as when it was
* last saved to disk...) */
pCtx->playlist->modified = true;
}
}
}
return JSON_Parser_Continue;
}
static JSON_Parser_HandlerResult JSONEndObjectHandler(JSON_Parser parser)
{
JSONContext *pCtx = (JSONContext*)JSON_Parser_GetUserData(parser);
if (pCtx->in_items && pCtx->object_depth == 2)
{
if ((pCtx->array_depth == 1) && !pCtx->capacity_exceeded)
RBUF_RESIZE(pCtx->playlist->entries,
RBUF_LEN(pCtx->playlist->entries) + 1);
}
retro_assert(pCtx->object_depth > 0);
pCtx->object_depth--;
return JSON_Parser_Continue;
}
static JSON_Parser_HandlerResult JSONStringHandler(JSON_Parser parser, char *pValue, size_t length, JSON_StringAttributes attributes)
{
JSONContext *pCtx = (JSONContext*)JSON_Parser_GetUserData(parser);
(void)attributes; /* unused */
if (pCtx->in_items && pCtx->in_subsystem_roms && pCtx->object_depth == 2 && pCtx->array_depth == 2)
{
if (pCtx->current_entry_string_list_val && length && !string_is_empty(pValue))
{
union string_list_elem_attr attr = {0};
if (!*pCtx->current_entry_string_list_val)
*pCtx->current_entry_string_list_val = string_list_new();
string_list_append(*pCtx->current_entry_string_list_val, pValue, attr);
}
}
else if (pCtx->in_items && pCtx->object_depth == 2)
{
if (pCtx->array_depth == 1)
{
if (pCtx->current_entry_val && length && !string_is_empty(pValue))
{
if (*pCtx->current_entry_val)
free(*pCtx->current_entry_val);
*pCtx->current_entry_val = strdup(pValue);
}
}
}
else if (pCtx->object_depth == 1)
{
if (pCtx->array_depth == 0)
{
if (pCtx->current_meta_val && length && !string_is_empty(pValue))
{
/* handle any top-level playlist metadata here */
#if 0
RARCH_LOG("[Playlist]: Found meta: %s = %s\n", pCtx->current_meta_string, pValue);
#endif
free(pCtx->current_meta_string);
pCtx->current_meta_string = NULL;
if (*pCtx->current_meta_val)
free(*pCtx->current_meta_val);
*pCtx->current_meta_val = strdup(pValue);
}
}
}
pCtx->current_entry_val = NULL;
pCtx->current_meta_val = NULL;
return JSON_Parser_Continue;
}
static JSON_Parser_HandlerResult JSONNumberHandler(JSON_Parser parser, char *pValue, size_t length, JSON_StringAttributes attributes)
{
JSONContext *pCtx = (JSONContext*)JSON_Parser_GetUserData(parser);
(void)attributes; /* unused */
if (pCtx->in_items && pCtx->object_depth == 2)
{
if (pCtx->array_depth == 1)
{
if (pCtx->current_entry_int_val && length && !string_is_empty(pValue))
*pCtx->current_entry_int_val = (int)strtoul(pValue, NULL, 10);
else if (pCtx->current_entry_uint_val && length && !string_is_empty(pValue))
*pCtx->current_entry_uint_val = (unsigned)strtoul(pValue, NULL, 10);
}
}
else if (pCtx->object_depth == 1)
{
if (pCtx->array_depth == 0)
{
if (pCtx->current_meta_string && length && !string_is_empty(pValue))
{
/* handle any top-level playlist metadata here */
#if 0
RARCH_LOG("[Playlist]: Found meta: %s = %s\n", pCtx->current_meta_string, pValue);
#endif
free(pCtx->current_meta_string);
pCtx->current_meta_string = NULL;
if (pCtx->current_meta_label_display_mode_val)
*pCtx->current_meta_label_display_mode_val = (enum playlist_label_display_mode)strtoul(pValue, NULL, 10);
else if (pCtx->current_meta_thumbnail_mode_val)
*pCtx->current_meta_thumbnail_mode_val = (enum playlist_thumbnail_mode)strtoul(pValue, NULL, 10);
else if (pCtx->current_meta_sort_mode_val)
*pCtx->current_meta_sort_mode_val = (enum playlist_sort_mode)strtoul(pValue, NULL, 10);
}
}
}
pCtx->current_entry_int_val = NULL;
pCtx->current_entry_uint_val = NULL;
pCtx->current_meta_label_display_mode_val = NULL;
pCtx->current_meta_thumbnail_mode_val = NULL;
pCtx->current_meta_sort_mode_val = NULL;
return JSON_Parser_Continue;
}
static JSON_Parser_HandlerResult JSONObjectMemberHandler(JSON_Parser parser, char *pValue, size_t length, JSON_StringAttributes attributes)
{
JSONContext *pCtx = (JSONContext*)JSON_Parser_GetUserData(parser);
(void)attributes; /* unused */
if (pCtx->in_items && pCtx->object_depth == 2)
{
if (pCtx->array_depth == 1)
{
if (pCtx->current_entry_val)
{
/* something went wrong */
RARCH_WARN("JSON parsing failed at line %d.\n", __LINE__);
return JSON_Parser_Abort;
}
if (length)
{
if (!string_is_empty(pValue))
{
if (!string_is_empty(pCtx->current_items_string))
free(pCtx->current_items_string);
pCtx->current_items_string = strdup(pValue);
}
if (!pCtx->capacity_exceeded)
{
if (string_is_equal(pValue, "path"))
pCtx->current_entry_val = &pCtx->current_entry->path;
else if (string_is_equal(pValue, "label"))
pCtx->current_entry_val = &pCtx->current_entry->label;
else if (string_is_equal(pValue, "core_path"))
pCtx->current_entry_val = &pCtx->current_entry->core_path;
else if (string_is_equal(pValue, "core_name"))
pCtx->current_entry_val = &pCtx->current_entry->core_name;
else if (string_is_equal(pValue, "crc32"))
pCtx->current_entry_val = &pCtx->current_entry->crc32;
else if (string_is_equal(pValue, "db_name"))
pCtx->current_entry_val = &pCtx->current_entry->db_name;
else if (string_starts_with_size(pValue, "subsystem_", STRLEN_CONST("subsystem_")))
{
if (string_is_equal(pValue, "subsystem_ident"))
pCtx->current_entry_val = &pCtx->current_entry->subsystem_ident;
else if (string_is_equal(pValue, "subsystem_name"))
pCtx->current_entry_val = &pCtx->current_entry->subsystem_name;
else if (string_is_equal(pValue, "subsystem_roms"))
pCtx->current_entry_string_list_val = &pCtx->current_entry->subsystem_roms;
}
else if (string_starts_with_size(pValue, "runtime_", STRLEN_CONST("runtime_")))
{
if (string_is_equal(pValue, "runtime_hours"))
pCtx->current_entry_uint_val = &pCtx->current_entry->runtime_hours;
else if (string_is_equal(pValue, "runtime_minutes"))
pCtx->current_entry_uint_val = &pCtx->current_entry->runtime_minutes;
else if (string_is_equal(pValue, "runtime_seconds"))
pCtx->current_entry_uint_val = &pCtx->current_entry->runtime_seconds;
}
else if (string_starts_with_size(pValue, "last_played_", STRLEN_CONST("last_played_")))
{
if (string_is_equal(pValue, "last_played_year"))
pCtx->current_entry_uint_val = &pCtx->current_entry->last_played_year;
else if (string_is_equal(pValue, "last_played_month"))
pCtx->current_entry_uint_val = &pCtx->current_entry->last_played_month;
else if (string_is_equal(pValue, "last_played_day"))
pCtx->current_entry_uint_val = &pCtx->current_entry->last_played_day;
else if (string_is_equal(pValue, "last_played_hour"))
pCtx->current_entry_uint_val = &pCtx->current_entry->last_played_hour;
else if (string_is_equal(pValue, "last_played_minute"))
pCtx->current_entry_uint_val = &pCtx->current_entry->last_played_minute;
else if (string_is_equal(pValue, "last_played_second"))
pCtx->current_entry_uint_val = &pCtx->current_entry->last_played_second;
}
}
else
{
pCtx->current_entry_val = NULL;
pCtx->current_entry_uint_val = NULL;
pCtx->current_entry_string_list_val = NULL;
}
}
}
}
else if (pCtx->object_depth == 1)
{
if (pCtx->array_depth == 0)
{
if (pCtx->current_meta_val)
{
/* something went wrong */
RARCH_WARN("JSON parsing failed at line %d.\n", __LINE__);
return JSON_Parser_Abort;
}
if (length)
{
if (pCtx->current_meta_string)
free(pCtx->current_meta_string);
pCtx->current_meta_string = strdup(pValue);
if (string_is_equal(pValue, "default_core_path"))
pCtx->current_meta_val = &pCtx->playlist->default_core_path;
else if (string_is_equal(pValue, "default_core_name"))
pCtx->current_meta_val = &pCtx->playlist->default_core_name;
else if (string_is_equal(pValue, "label_display_mode"))
pCtx->current_meta_label_display_mode_val = &pCtx->playlist->label_display_mode;
else if (string_is_equal(pValue, "right_thumbnail_mode"))
pCtx->current_meta_thumbnail_mode_val = &pCtx->playlist->right_thumbnail_mode;
else if (string_is_equal(pValue, "left_thumbnail_mode"))
pCtx->current_meta_thumbnail_mode_val = &pCtx->playlist->left_thumbnail_mode;
else if (string_is_equal(pValue, "sort_mode"))
pCtx->current_meta_sort_mode_val = &pCtx->playlist->sort_mode;
else if (string_is_equal(pValue, "base_content_directory"))
pCtx->current_meta_val = &pCtx->playlist->base_content_directory;
}
}
}
return JSON_Parser_Continue;
}
static void get_old_format_metadata_value(
char *metadata_line, char *value, size_t len)
{
char *end = NULL;
char *start = strchr(metadata_line, '\"');
if (!start)
return;
start++;
end = strchr(start, '\"');
if (!end)
return;
*end = '\0';
strlcpy(value, start, len);
}
static bool playlist_read_file(playlist_t *playlist)
{
unsigned i;
int test_char;
bool res = true;
#if defined(HAVE_ZLIB)
/* Always use RZIP interface when reading playlists
* > this will automatically handle uncompressed
* data */
intfstream_t *file = intfstream_open_rzip_file(
playlist->config.path,
RETRO_VFS_FILE_ACCESS_READ);
#else
intfstream_t *file = intfstream_open_file(
playlist->config.path,
RETRO_VFS_FILE_ACCESS_READ,
RETRO_VFS_FILE_ACCESS_HINT_NONE);
#endif
/* If playlist file does not exist,
* create an empty playlist instead */
if (!file)
return true;
playlist->compressed = intfstream_is_compressed(file);
/* Detect format of playlist
* > Read file until we find the first printable
* non-whitespace ASCII character */
do
{
test_char = intfstream_getc(file);
if (test_char == EOF) /* read error or end of file */
goto end;
}while (!isgraph(test_char) || test_char > 0x7F);
if (test_char == '{')
{
/* New playlist format detected */
#if 0
RARCH_LOG("[Playlist]: New playlist format detected.\n");
#endif
playlist->old_format = false;
}
else
{
/* old playlist format detected */
#if 0
RARCH_LOG("[Playlist]: Old playlist format detected.\n");
#endif
playlist->old_format = true;
}
/* Reset file to start */
intfstream_rewind(file);
if (!playlist->old_format)
{
JSONContext context = {0};
context.parser = JSON_Parser_Create(NULL);
context.file = file;
context.playlist = playlist;
if (!context.parser)
{
RARCH_ERR("Failed to create JSON parser\n");
goto end;
}
#if 0
JSON_Parser_SetTrackObjectMembers(context.parser, JSON_True);
#endif
JSON_Parser_SetAllowBOM(context.parser, JSON_True);
JSON_Parser_SetAllowComments(context.parser, JSON_True);
JSON_Parser_SetAllowSpecialNumbers(context.parser, JSON_True);
JSON_Parser_SetAllowHexNumbers(context.parser, JSON_True);
JSON_Parser_SetAllowUnescapedControlCharacters(context.parser, JSON_True);
JSON_Parser_SetReplaceInvalidEncodingSequences(context.parser, JSON_True);
#if 0
JSON_Parser_SetNullHandler(context.parser, &JSONNullHandler);
JSON_Parser_SetBooleanHandler(context.parser, &JSONBooleanHandler);
JSON_Parser_SetSpecialNumberHandler(context.parser, &JSONSpecialNumberHandler);
JSON_Parser_SetArrayItemHandler(context.parser, &JSONArrayItemHandler);
#endif
JSON_Parser_SetNumberHandler(context.parser, &JSONNumberHandler);
JSON_Parser_SetStringHandler(context.parser, &JSONStringHandler);
JSON_Parser_SetStartObjectHandler(context.parser, &JSONStartObjectHandler);
JSON_Parser_SetEndObjectHandler(context.parser, &JSONEndObjectHandler);
JSON_Parser_SetObjectMemberHandler(context.parser, &JSONObjectMemberHandler);
JSON_Parser_SetStartArrayHandler(context.parser, &JSONStartArrayHandler);
JSON_Parser_SetEndArrayHandler(context.parser, &JSONEndArrayHandler);
JSON_Parser_SetUserData(context.parser, &context);
while (!intfstream_eof(file))
{
char chunk[4096] = {0};
int64_t length = intfstream_read(file, chunk, sizeof(chunk));
if (!length && !intfstream_eof(file))
{
RARCH_WARN("Could not read JSON input.\n");
goto json_cleanup;
}
if (!JSON_Parser_Parse(context.parser, chunk,
(size_t)length, JSON_False))
{
if (context.out_of_memory)
{
RARCH_WARN("Ran out of memory while parsing JSON playlist\n");
res = false;
goto json_cleanup;
}
/* Note: Chunk may not be null-terminated.
* It is therefore dangerous to print its contents.
* Setting a size limit here mitigates the issue, but
* in general this is not good practice...
* Addendum: RARCH_WARN() actually limits the printed
* buffer size anyway, so this warning message is most
* likely worthless... */
RARCH_WARN("Error parsing chunk:\n---snip---\n%.*s\n---snip---\n", 4096, chunk);
JSONLogError(&context);
goto json_cleanup;
}
}
if (!JSON_Parser_Parse(context.parser, NULL, 0, JSON_True))
{
RARCH_WARN("Error parsing JSON.\n");
JSONLogError(&context);
goto json_cleanup;
}
json_cleanup:
JSON_Parser_Free(context.parser);
if (context.current_meta_string)
free(context.current_meta_string);
if (context.current_items_string)
free(context.current_items_string);
}
else
{
size_t len = RBUF_LEN(playlist->entries);
char line_buf[PLAYLIST_ENTRIES][PATH_MAX_LENGTH] = {{0}};
/* Unnecessary, but harmless */
for (i = 0; i < PLAYLIST_ENTRIES; i++)
line_buf[i][0] = '\0';
/* Read playlist entries */
while (len < playlist->config.capacity)
{
size_t i;
size_t lines_read = 0;
/* Attempt to read the next 'PLAYLIST_ENTRIES'
* lines from the file */
for (i = 0; i < PLAYLIST_ENTRIES; i++)
{
*line_buf[i] = '\0';
if (intfstream_gets(file, line_buf[i], sizeof(line_buf[i])))
{
/* Ensure line is NUL terminated, regardless of
* Windows or Unix line endings */
string_replace_all_chars(line_buf[i], '\r', '\0');
string_replace_all_chars(line_buf[i], '\n', '\0');
lines_read++;
}
else
break;
}
/* If a 'full set' of lines were read, then this
* is a valid playlist entry */
if (lines_read >= PLAYLIST_ENTRIES)
{
struct playlist_entry* entry;
if (!RBUF_TRYFIT(playlist->entries, len + 1))
{
res = false; /* out of memory */
goto end;
}
RBUF_RESIZE(playlist->entries, len + 1);
entry = &playlist->entries[len++];
memset(entry, 0, sizeof(*entry));
/* path */
if (!string_is_empty(line_buf[0]))
entry->path = strdup(line_buf[0]);
/* label */
if (!string_is_empty(line_buf[1]))
entry->label = strdup(line_buf[1]);
/* core_path */
if (!string_is_empty(line_buf[2]))
entry->core_path = strdup(line_buf[2]);
/* core_name */
if (!string_is_empty(line_buf[3]))
entry->core_name = strdup(line_buf[3]);
/* crc32 */
if (!string_is_empty(line_buf[4]))
entry->crc32 = strdup(line_buf[4]);
/* db_name */
if (!string_is_empty(line_buf[5]))
entry->db_name = strdup(line_buf[5]);
}
/* If fewer than 'PLAYLIST_ENTRIES' lines were
* read, then this is metadata */
else
{
char default_core_path[PATH_MAX_LENGTH];
char default_core_name[PATH_MAX_LENGTH];
default_core_path[0] = '\0';
default_core_name[0] = '\0';
/* Get default_core_path */
if (lines_read < 1)
break;
if (strncmp("default_core_path",
line_buf[0],
STRLEN_CONST("default_core_path")) == 0)
get_old_format_metadata_value(
line_buf[0], default_core_path, sizeof(default_core_path));
/* Get default_core_name */
if (lines_read < 2)
break;
if (strncmp("default_core_name",
line_buf[1],
STRLEN_CONST("default_core_name")) == 0)
get_old_format_metadata_value(
line_buf[1], default_core_name, sizeof(default_core_name));
/* > Populate default core path/name, if required
* (if one is empty, the other should be ignored) */
if (!string_is_empty(default_core_path) &&
!string_is_empty(default_core_name))
{
playlist->default_core_path = strdup(default_core_path);
playlist->default_core_name = strdup(default_core_name);
}
/* Get label_display_mode */
if (lines_read < 3)
break;
if (strncmp("label_display_mode",
line_buf[2],
STRLEN_CONST("label_display_mode")) == 0)
{
unsigned display_mode;
char display_mode_str[4] = {0};
get_old_format_metadata_value(
line_buf[2], display_mode_str, sizeof(display_mode_str));
display_mode = string_to_unsigned(display_mode_str);
if (display_mode <= LABEL_DISPLAY_MODE_KEEP_REGION_AND_DISC_INDEX)
playlist->label_display_mode = (enum playlist_label_display_mode)display_mode;
}
/* Get thumbnail modes */
if (lines_read < 4)
break;
if (strncmp("thumbnail_mode",
line_buf[3],
STRLEN_CONST("thumbnail_mode")) == 0)
{
char thumbnail_mode_str[8] = {0};
struct string_list *thumbnail_modes = NULL;
get_old_format_metadata_value(
line_buf[3], thumbnail_mode_str, sizeof(thumbnail_mode_str));
thumbnail_modes = string_split(thumbnail_mode_str, "|");
if (thumbnail_modes)
{
if (thumbnail_modes->size == 2)
{
unsigned thumbnail_mode;
/* Right thumbnail mode */
thumbnail_mode = string_to_unsigned(thumbnail_modes->elems[0].data);
if (thumbnail_mode <= PLAYLIST_THUMBNAIL_MODE_BOXARTS)
playlist->right_thumbnail_mode = (enum playlist_thumbnail_mode)thumbnail_mode;
/* Left thumbnail mode */
thumbnail_mode = string_to_unsigned(thumbnail_modes->elems[1].data);
if (thumbnail_mode <= PLAYLIST_THUMBNAIL_MODE_BOXARTS)
playlist->left_thumbnail_mode = (enum playlist_thumbnail_mode)thumbnail_mode;
}
string_list_free(thumbnail_modes);
}
}
/* Get sort_mode */
if (lines_read < 5)
break;
if (strncmp("sort_mode",
line_buf[4],
STRLEN_CONST("sort_mode")) == 0)
{
unsigned sort_mode;
char sort_mode_str[4] = {0};
get_old_format_metadata_value(
line_buf[4], sort_mode_str, sizeof(sort_mode_str));
sort_mode = string_to_unsigned(sort_mode_str);
if (sort_mode <= PLAYLIST_SORT_MODE_OFF)
playlist->sort_mode = (enum playlist_sort_mode)sort_mode;
}
/* All metadata parsed -> end of file */
break;
}
}
}
end:
intfstream_close(file);
free(file);
return res;
}
void playlist_free_cached(void)
{
if (playlist_cached && !playlist_cached->cached_external)
playlist_free(playlist_cached);
playlist_cached = NULL;
}
playlist_t *playlist_get_cached(void)
{
if (playlist_cached)
return playlist_cached;
return NULL;
}
bool playlist_init_cached(const playlist_config_t *config)
{
playlist_t *playlist = playlist_init(config);
if (!playlist)
return false;
/* If playlist format/compression state
* does not match requested settings, update
* file on disk immediately */
if (
#if defined(HAVE_ZLIB)
(playlist->compressed != playlist->config.compress) ||
#endif
(playlist->old_format != playlist->config.old_format))
playlist_write_file(playlist);
playlist_cached = playlist;
return true;
}
/**
* playlist_init:
* @config : Playlist configuration object.
*
* Creates and initializes a playlist.
*
* Returns: handle to new playlist if successful, otherwise NULL
**/
playlist_t *playlist_init(const playlist_config_t *config)
{
playlist_t *playlist = (playlist_t*)malloc(sizeof(*playlist));
if (!playlist)
goto error;
/* Set initial values */
playlist->modified = false;
playlist->old_format = false;
playlist->compressed = false;
playlist->cached_external = false;
playlist->default_core_name = NULL;
playlist->default_core_path = NULL;
playlist->base_content_directory = NULL;
playlist->entries = NULL;
playlist->label_display_mode = LABEL_DISPLAY_MODE_DEFAULT;
playlist->right_thumbnail_mode = PLAYLIST_THUMBNAIL_MODE_DEFAULT;
playlist->left_thumbnail_mode = PLAYLIST_THUMBNAIL_MODE_DEFAULT;
playlist->sort_mode = PLAYLIST_SORT_MODE_DEFAULT;
/* Cache configuration parameters */
if (!playlist_config_copy(config, &playlist->config))
goto error;
/* Attempt to read any existing playlist file */
if (!playlist_read_file(playlist))
goto error;
/* Try auto-fixing paths if enabled, and playlist
* base content directory is different */
if (config->autofix_paths && !string_is_equal(playlist->base_content_directory, config->base_content_directory))
{
if (!string_is_empty(playlist->base_content_directory))
{
size_t i, j, len;
char tmp_entry_path[PATH_MAX_LENGTH];
for (i = 0, len = RBUF_LEN(playlist->entries); i < len; i++)
{
struct playlist_entry* entry = &playlist->entries[i];
if (!entry || string_is_empty(entry->path))
continue;
/* Fix entry path */
tmp_entry_path[0] = '\0';
path_replace_base_path_and_convert_to_local_file_system(
tmp_entry_path, entry->path,
playlist->base_content_directory, playlist->config.base_content_directory,
sizeof(tmp_entry_path));
free(entry->path);
entry->path = strdup(tmp_entry_path);
/* Fix subsystem roms paths*/
if (entry->subsystem_roms && (entry->subsystem_roms->size > 0))
{
struct string_list* subsystem_roms_new_paths = string_list_new();
union string_list_elem_attr attributes = { 0 };
if (!subsystem_roms_new_paths)
goto error;
for (j = 0; j < entry->subsystem_roms->size; j++)
{
const char* subsystem_rom_path = entry->subsystem_roms->elems[j].data;
if (string_is_empty(subsystem_rom_path))
continue;
tmp_entry_path[0] = '\0';
path_replace_base_path_and_convert_to_local_file_system(
tmp_entry_path, subsystem_rom_path,
playlist->base_content_directory, playlist->config.base_content_directory,
sizeof(tmp_entry_path));
string_list_append(subsystem_roms_new_paths, tmp_entry_path, attributes);
}
string_list_free(entry->subsystem_roms);
entry->subsystem_roms = subsystem_roms_new_paths;
}
}
}
/* Update playlist base content directory*/
if (playlist->base_content_directory)
free(playlist->base_content_directory);
playlist->base_content_directory = strdup(playlist->config.base_content_directory);
/* Save playlist */
playlist->modified = true;
playlist_write_file(playlist);
}
return playlist;
error:
playlist_free(playlist);
return NULL;
}
static int playlist_qsort_func(const struct playlist_entry *a,
const struct playlist_entry *b)
{
char *a_str = NULL;
char *b_str = NULL;
char *a_fallback_label = NULL;
char *b_fallback_label = NULL;
int ret = 0;
if (!a || !b)
goto end;
a_str = a->label;
b_str = b->label;
/* It is quite possible for playlist labels
* to be blank. If that is the case, have to use
* filename as a fallback (this is slow, but we
* have no other option...) */
if (string_is_empty(a_str))
{
a_fallback_label = (char*)calloc(PATH_MAX_LENGTH, sizeof(char));
if (!a_fallback_label)
goto end;
if (!string_is_empty(a->path))
fill_short_pathname_representation(a_fallback_label, a->path, PATH_MAX_LENGTH * sizeof(char));
/* If filename is also empty, use core name
* instead -> this matches the behaviour of
* menu_displaylist_parse_playlist() */
else if (!string_is_empty(a->core_name))
strlcpy(a_fallback_label, a->core_name, PATH_MAX_LENGTH * sizeof(char));
/* If both filename and core name are empty,
* then have to compare an empty string
* -> again, this is to match the behaviour of
* menu_displaylist_parse_playlist() */
a_str = a_fallback_label;
}
if (string_is_empty(b_str))
{
b_fallback_label = (char*)calloc(PATH_MAX_LENGTH, sizeof(char));
if (!b_fallback_label)
goto end;
if (!string_is_empty(b->path))
fill_short_pathname_representation(b_fallback_label, b->path, PATH_MAX_LENGTH * sizeof(char));
else if (!string_is_empty(b->core_name))
strlcpy(b_fallback_label, b->core_name, PATH_MAX_LENGTH * sizeof(char));
b_str = b_fallback_label;
}
ret = strcasecmp(a_str, b_str);
end:
a_str = NULL;
b_str = NULL;
if (a_fallback_label)
{
free(a_fallback_label);
a_fallback_label = NULL;
}
if (b_fallback_label)
{
free(b_fallback_label);
b_fallback_label = NULL;
}
return ret;
}
void playlist_qsort(playlist_t *playlist)
{
/* Avoid inadvertent sorting if 'sort mode'
* has been set explicitly to PLAYLIST_SORT_MODE_OFF */
if (!playlist ||
(playlist->sort_mode == PLAYLIST_SORT_MODE_OFF) ||
!playlist->entries)
return;
qsort(playlist->entries, RBUF_LEN(playlist->entries),
sizeof(struct playlist_entry),
(int (*)(const void *, const void *))playlist_qsort_func);
}
void command_playlist_push_write(
playlist_t *playlist,
const struct playlist_entry *entry)
{
if (!playlist)
return;
if (playlist_push(playlist, entry))
playlist_write_file(playlist);
}
void command_playlist_update_write(
playlist_t *plist,
size_t idx,
const struct playlist_entry *entry)
{
playlist_t *playlist = plist ? plist : playlist_get_cached();
if (!playlist)
return;
playlist_update(
playlist,
idx,
entry);
playlist_write_file(playlist);
}
bool playlist_index_is_valid(playlist_t *playlist, size_t idx,
const char *path, const char *core_path)
{
if (!playlist)
return false;
if (idx >= RBUF_LEN(playlist->entries))
return false;
return string_is_equal(playlist->entries[idx].path, path) &&
string_is_equal(path_basename(playlist->entries[idx].core_path), path_basename(core_path));
}
bool playlist_entries_are_equal(
const struct playlist_entry *entry_a,
const struct playlist_entry *entry_b,
const playlist_config_t *config)
{
char real_path_a[PATH_MAX_LENGTH];
char real_core_path_a[PATH_MAX_LENGTH];
real_path_a[0] = '\0';
real_core_path_a[0] = '\0';
/* Sanity check */
if (!entry_a || !entry_b || !config)
return false;
if (string_is_empty(entry_a->path) &&
string_is_empty(entry_a->core_path) &&
string_is_empty(entry_b->path) &&
string_is_empty(entry_b->core_path))
return true;
/* Check content paths */
if (!string_is_empty(entry_a->path))
{
strlcpy(real_path_a, entry_a->path, sizeof(real_path_a));
path_resolve_realpath(real_path_a, sizeof(real_path_a), true);
}
if (!playlist_path_equal(
real_path_a, entry_b->path, config))
return false;
/* Check core paths */
if (!string_is_empty(entry_a->core_path))
{
strlcpy(real_core_path_a, entry_a->core_path, sizeof(real_core_path_a));
if (!string_is_equal(real_core_path_a, FILE_PATH_DETECT) &&
!string_is_equal(real_core_path_a, FILE_PATH_BUILTIN))
path_resolve_realpath(real_core_path_a, sizeof(real_core_path_a), true);
}
return playlist_core_path_equal(real_core_path_a, entry_b->core_path, config);
}
void playlist_get_crc32(playlist_t *playlist, size_t idx,
const char **crc32)
{
if (!playlist || idx >= RBUF_LEN(playlist->entries))
return;
if (crc32)
*crc32 = playlist->entries[idx].crc32;
}
void playlist_get_db_name(playlist_t *playlist, size_t idx,
const char **db_name)
{
if (!playlist || idx >= RBUF_LEN(playlist->entries))
return;
if (db_name)
{
if (!string_is_empty(playlist->entries[idx].db_name))
*db_name = playlist->entries[idx].db_name;
else
{
const char *conf_path_basename = path_basename(playlist->config.path);
/* Only use file basename if this is a 'collection' playlist
* (i.e. ignore history/favourites) */
if (
!string_is_empty(conf_path_basename)
&& !string_ends_with_size(conf_path_basename, "_history.lpl",
strlen(conf_path_basename), STRLEN_CONST("_history.lpl"))
&& !string_is_equal(conf_path_basename,
FILE_PATH_CONTENT_FAVORITES)
)
*db_name = conf_path_basename;
}
}
}
char *playlist_get_default_core_path(playlist_t *playlist)
{
if (!playlist)
return NULL;
return playlist->default_core_path;
}
char *playlist_get_default_core_name(playlist_t *playlist)
{
if (!playlist)
return NULL;
return playlist->default_core_name;
}
enum playlist_label_display_mode playlist_get_label_display_mode(playlist_t *playlist)
{
if (!playlist)
return LABEL_DISPLAY_MODE_DEFAULT;
return playlist->label_display_mode;
}
enum playlist_thumbnail_mode playlist_get_thumbnail_mode(
playlist_t *playlist, enum playlist_thumbnail_id thumbnail_id)
{
if (!playlist)
return PLAYLIST_THUMBNAIL_MODE_DEFAULT;
if (thumbnail_id == PLAYLIST_THUMBNAIL_RIGHT)
return playlist->right_thumbnail_mode;
else if (thumbnail_id == PLAYLIST_THUMBNAIL_LEFT)
return playlist->left_thumbnail_mode;
/* Fallback */
return PLAYLIST_THUMBNAIL_MODE_DEFAULT;
}
enum playlist_sort_mode playlist_get_sort_mode(playlist_t *playlist)
{
if (!playlist)
return PLAYLIST_SORT_MODE_DEFAULT;
return playlist->sort_mode;
}
void playlist_set_default_core_path(playlist_t *playlist, const char *core_path)
{
char real_core_path[PATH_MAX_LENGTH];
if (!playlist || string_is_empty(core_path))
return;
real_core_path[0] = '\0';
/* Get 'real' core path */
strlcpy(real_core_path, core_path, sizeof(real_core_path));
if (!string_is_equal(real_core_path, FILE_PATH_DETECT) &&
!string_is_equal(real_core_path, FILE_PATH_BUILTIN))
playlist_resolve_path(PLAYLIST_SAVE,
real_core_path, sizeof(real_core_path));
if (string_is_empty(real_core_path))
return;
if (!string_is_equal(playlist->default_core_path, real_core_path))
{
if (playlist->default_core_path)
free(playlist->default_core_path);
playlist->default_core_path = strdup(real_core_path);
playlist->modified = true;
}
}
void playlist_set_default_core_name(
playlist_t *playlist, const char *core_name)
{
if (!playlist || string_is_empty(core_name))
return;
if (!string_is_equal(playlist->default_core_name, core_name))
{
if (playlist->default_core_name)
free(playlist->default_core_name);
playlist->default_core_name = strdup(core_name);
playlist->modified = true;
}
}
void playlist_set_label_display_mode(playlist_t *playlist,
enum playlist_label_display_mode label_display_mode)
{
if (!playlist)
return;
if (playlist->label_display_mode != label_display_mode)
{
playlist->label_display_mode = label_display_mode;
playlist->modified = true;
}
}
void playlist_set_thumbnail_mode(
playlist_t *playlist, enum playlist_thumbnail_id thumbnail_id,
enum playlist_thumbnail_mode thumbnail_mode)
{
if (!playlist)
return;
switch (thumbnail_id)
{
case PLAYLIST_THUMBNAIL_RIGHT:
playlist->right_thumbnail_mode = thumbnail_mode;
playlist->modified = true;
break;
case PLAYLIST_THUMBNAIL_LEFT:
playlist->left_thumbnail_mode = thumbnail_mode;
playlist->modified = true;
break;
}
}
void playlist_set_sort_mode(playlist_t *playlist,
enum playlist_sort_mode sort_mode)
{
if (!playlist)
return;
if (playlist->sort_mode != sort_mode)
{
playlist->sort_mode = sort_mode;
playlist->modified = true;
}
}
/* Returns true if specified entry has a valid
* core association (i.e. a non-empty string
* other than DETECT) */
bool playlist_entry_has_core(const struct playlist_entry *entry)
{
if (!entry ||
string_is_empty(entry->core_path) ||
string_is_empty(entry->core_name) ||
string_is_equal(entry->core_path, FILE_PATH_DETECT) ||
string_is_equal(entry->core_name, FILE_PATH_DETECT))
return false;
return true;
}
/* Fetches core info object corresponding to the
* currently associated core of the specified
* playlist entry.
* Returns NULL if entry does not have a valid
* core association */
core_info_t *playlist_entry_get_core_info(const struct playlist_entry* entry)
{
core_info_ctx_find_t core_info;
if (!playlist_entry_has_core(entry))
return NULL;
/* Search for associated core */
core_info.inf = NULL;
core_info.path = entry->core_path;
if (core_info_find(&core_info))
return core_info.inf;
return NULL;
}
/* Fetches core info object corresponding to the
* currently associated default core of the
* specified playlist.
* Returns NULL if playlist does not have a valid
* default core association */
core_info_t *playlist_get_default_core_info(playlist_t* playlist)
{
core_info_ctx_find_t core_info;
if (!playlist ||
string_is_empty(playlist->default_core_path) ||
string_is_empty(playlist->default_core_name) ||
string_is_equal(playlist->default_core_path, FILE_PATH_DETECT) ||
string_is_equal(playlist->default_core_name, FILE_PATH_DETECT))
return NULL;
/* Search for associated core */
core_info.inf = NULL;
core_info.path = playlist->default_core_path;
if (core_info_find(&core_info))
return core_info.inf;
return NULL;
}
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