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RetroArch/core_info.c

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2016 - Daniel De Matteis
* Copyright (C) 2013-2015 - Jason Fetters
* Copyright (C) 2016 - 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 <compat/strl.h>
#include <string/stdstring.h>
#include <file/file_path.h>
#include <lists/dir_list.h>
#include <file/archive_file.h>
#include <retro_stat.h>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "runloop.h"
#include "verbosity.h"
#include "config.def.h"
#include "core_info.h"
#include "configuration.h"
#include "file_path_special.h"
#include "list_special.h"
static const char *core_info_tmp_path = NULL;
static const struct string_list *core_info_tmp_list = NULL;
static core_info_t *core_info_current = NULL;
static core_info_list_t *core_info_curr_list = NULL;
static void core_info_list_resolve_all_extensions(
core_info_list_t *core_info_list)
{
size_t i = 0;
size_t all_ext_len = 0;
char *all_ext = NULL;
if (!core_info_list)
return;
for (i = 0; i < core_info_list->count; i++)
{
if (core_info_list->list[i].supported_extensions)
all_ext_len +=
(strlen(core_info_list->list[i].supported_extensions) + 2);
}
if (all_ext_len)
all_ext = (char*)calloc(1, all_ext_len);
if (!all_ext)
return;
core_info_list->all_ext = all_ext;
for (i = 0; i < core_info_list->count; i++)
{
if (!core_info_list->list[i].supported_extensions)
continue;
strlcat(core_info_list->all_ext,
core_info_list->list[i].supported_extensions, all_ext_len);
strlcat(core_info_list->all_ext, "|", all_ext_len);
}
}
static void core_info_list_resolve_all_firmware(
core_info_list_t *core_info_list)
{
size_t i;
unsigned c;
for (i = 0; i < core_info_list->count; i++)
{
unsigned count = 0;
core_info_firmware_t *firmware = NULL;
core_info_t *info = (core_info_t*)&core_info_list->list[i];
config_file_t *config = (config_file_t*)info->config_data;
if (!config || !config_get_uint(config, "firmware_count", &count))
continue;
firmware = (core_info_firmware_t*)calloc(count, sizeof(*firmware));
if (!firmware)
continue;
info->firmware = firmware;
for (c = 0; c < count; c++)
{
char path_key[64];
char desc_key[64];
char opt_key[64];
bool tmp_bool = false;
char *tmp = NULL;
path_key[0] = desc_key[0] = opt_key[0] = '\0';
snprintf(path_key, sizeof(path_key), "firmware%u_path", c);
snprintf(desc_key, sizeof(desc_key), "firmware%u_desc", c);
snprintf(opt_key, sizeof(opt_key), "firmware%u_opt", c);
if (config_get_string(config, path_key, &tmp))
{
info->firmware[c].path = strdup(tmp);
free(tmp);
tmp = NULL;
}
if (config_get_string(config, desc_key, &tmp))
{
info->firmware[c].desc = strdup(tmp);
free(tmp);
tmp = NULL;
}
if (config_get_bool(config, opt_key , &tmp_bool))
info->firmware[c].optional = tmp_bool;
}
}
}
static void core_info_list_free(core_info_list_t *core_info_list)
{
size_t i, j;
if (!core_info_list)
return;
for (i = 0; i < core_info_list->count; i++)
{
core_info_t *info = (core_info_t*)&core_info_list->list[i];
free(info->path);
free(info->core_name);
free(info->systemname);
free(info->system_manufacturer);
free(info->display_name);
free(info->supported_extensions);
free(info->authors);
free(info->permissions);
free(info->licenses);
free(info->categories);
free(info->databases);
free(info->notes);
string_list_free(info->supported_extensions_list);
string_list_free(info->authors_list);
string_list_free(info->note_list);
string_list_free(info->permissions_list);
string_list_free(info->licenses_list);
string_list_free(info->categories_list);
string_list_free(info->databases_list);
config_file_free((config_file_t*)info->config_data);
for (j = 0; j < info->firmware_count; j++)
{
free(info->firmware[j].path);
free(info->firmware[j].desc);
}
free(info->firmware);
}
free(core_info_list->all_ext);
free(core_info_list->list);
free(core_info_list);
}
static bool core_info_list_iterate(
char *s, size_t len,
struct string_list *contents, size_t i)
{
char info_path_base[PATH_MAX_LENGTH];
#if defined(RARCH_MOBILE) || (defined(RARCH_CONSOLE) && !defined(PSP) && !defined(_3DS) && !defined(VITA))
char *substr = NULL;
#endif
settings_t *settings = config_get_ptr();
if (!contents || !contents->elems[i].data)
return false;
info_path_base[0] = '\0';
fill_pathname_base_noext(info_path_base, contents->elems[i].data,
sizeof(info_path_base));
#if defined(RARCH_MOBILE) || (defined(RARCH_CONSOLE) && !defined(PSP) && !defined(_3DS) && !defined(VITA))
substr = strrchr(info_path_base, '_');
if (substr)
*substr = '\0';
#endif
strlcat(info_path_base,
file_path_str(FILE_PATH_CORE_INFO_EXTENSION),
sizeof(info_path_base));
fill_pathname_join(s,
(!string_is_empty(settings->path.libretro_info)) ?
settings->path.libretro_info : settings->directory.libretro,
info_path_base, len);
return true;
}
static core_info_list_t *core_info_list_new(const char *path)
{
size_t i;
core_info_t *core_info = NULL;
core_info_list_t *core_info_list = NULL;
struct string_list *contents = dir_list_new_special(
path, DIR_LIST_CORES, NULL);
if (!contents)
return NULL;
core_info_list = (core_info_list_t*)calloc(1, sizeof(*core_info_list));
if (!core_info_list)
goto error;
core_info = (core_info_t*)calloc(contents->size, sizeof(*core_info));
if (!core_info)
goto error;
core_info_list->list = core_info;
core_info_list->count = contents->size;
for (i = 0; i < contents->size; i++)
{
char info_path[PATH_MAX_LENGTH];
info_path[0] = '\0';
if (
core_info_list_iterate(info_path, sizeof(info_path),
contents, i)
&& path_is_valid(info_path))
{
char *tmp = NULL;
bool tmp_bool = false;
unsigned count = 0;
config_file_t *conf = config_file_new(info_path);
if (!conf)
continue;
if (config_get_string(conf, "display_name", &tmp))
{
core_info[i].display_name = strdup(tmp);
free(tmp);
tmp = NULL;
}
if (config_get_string(conf, "corename", &tmp))
{
core_info[i].core_name = strdup(tmp);
free(tmp);
tmp = NULL;
}
if (config_get_string(conf, "systemname", &tmp))
{
core_info[i].systemname = strdup(tmp);
free(tmp);
tmp = NULL;
}
if (config_get_string(conf, "manufacturer", &tmp))
{
core_info[i].system_manufacturer = strdup(tmp);
free(tmp);
tmp = NULL;
}
config_get_uint(conf, "firmware_count", &count);
core_info[i].firmware_count = count;
if (config_get_string(conf, "supported_extensions", &tmp))
{
core_info[i].supported_extensions = strdup(tmp);
core_info[i].supported_extensions_list =
string_split(core_info[i].supported_extensions, "|");
free(tmp);
tmp = NULL;
}
if (config_get_string(conf, "authors", &tmp))
{
core_info[i].authors = strdup(tmp);
core_info[i].authors_list =
string_split(core_info[i].authors, "|");
free(tmp);
tmp = NULL;
}
if (config_get_string(conf, "permissions", &tmp))
{
core_info[i].permissions = strdup(tmp);
core_info[i].permissions_list =
string_split(core_info[i].permissions, "|");
free(tmp);
tmp = NULL;
}
if (config_get_string(conf, "license", &tmp))
{
core_info[i].licenses = strdup(tmp);
core_info[i].licenses_list =
string_split(core_info[i].licenses, "|");
free(tmp);
tmp = NULL;
}
if (config_get_string(conf, "categories", &tmp))
{
core_info[i].categories = strdup(tmp);
core_info[i].categories_list =
string_split(core_info[i].categories, "|");
free(tmp);
tmp = NULL;
}
if (config_get_string(conf, "database", &tmp))
{
core_info[i].databases = strdup(tmp);
core_info[i].databases_list =
string_split(core_info[i].databases, "|");
free(tmp);
tmp = NULL;
}
if (config_get_string(conf, "notes", &tmp))
{
core_info[i].notes = strdup(tmp);
core_info[i].note_list = string_split(core_info[i].notes, "|");
free(tmp);
tmp = NULL;
}
if (config_get_bool(conf, "supports_no_game",
&tmp_bool))
core_info[i].supports_no_game = tmp_bool;
core_info[i].config_data = conf;
}
core_info[i].path = strdup(contents->elems[i].data);
if (!core_info[i].display_name)
core_info[i].display_name =
strdup(path_basename(core_info[i].path));
}
core_info_list_resolve_all_extensions(core_info_list);
if (core_info_list)
core_info_list_resolve_all_firmware(core_info_list);
dir_list_free(contents);
return core_info_list;
error:
if (contents)
dir_list_free(contents);
core_info_list_free(core_info_list);
return NULL;
}
/* Shallow-copies internal state.
*
* Data in *info is invalidated when the
* core_info_list is freed. */
static bool core_info_list_get_info(core_info_list_t *core_info_list,
core_info_t *out_info, const char *path)
{
size_t i;
if (!core_info_list || !out_info)
return false;
memset(out_info, 0, sizeof(*out_info));
for (i = 0; i < core_info_list->count; i++)
{
const core_info_t *info = &core_info_list->list[i];
if (string_is_equal(path_basename(info->path),
path_basename(path)))
{
*out_info = *info;
return true;
}
}
return false;
}
static bool core_info_does_support_any_file(const core_info_t *core,
const struct string_list *list)
{
size_t i;
if (!list || !core || !core->supported_extensions_list)
return false;
for (i = 0; i < list->size; i++)
if (string_list_find_elem_prefix(core->supported_extensions_list,
".", path_get_extension(list->elems[i].data)))
return true;
return false;
}
static bool core_info_does_support_file(
const core_info_t *core, const char *path)
{
if (!core || !core->supported_extensions_list)
return false;
if (string_is_empty(path))
return false;
return string_list_find_elem_prefix(
core->supported_extensions_list, ".", path_get_extension(path));
}
/* qsort_r() is not in standard C, sadly. */
static int core_info_qsort_cmp(const void *a_, const void *b_)
{
const core_info_t *a = (const core_info_t*)a_;
const core_info_t *b = (const core_info_t*)b_;
int support_a =
core_info_does_support_any_file(a, core_info_tmp_list)
|| core_info_does_support_file(a, core_info_tmp_path);
int support_b =
core_info_does_support_any_file(b, core_info_tmp_list)
|| core_info_does_support_file(b, core_info_tmp_path);
if (support_a != support_b)
return support_b - support_a;
return strcasecmp(a->display_name, b->display_name);
}
static core_info_t *core_info_find_internal(
core_info_list_t *list,
const char *core)
{
size_t i;
for (i = 0; i < list->count; i++)
{
core_info_t *info = core_info_get(list, i);
if (!info || !info->path)
continue;
if (string_is_equal(info->path, core))
return info;
}
return NULL;
}
static bool core_info_list_update_missing_firmware_internal(
core_info_list_t *core_info_list,
const char *core,
const char *systemdir)
{
size_t i;
char path[PATH_MAX_LENGTH];
core_info_t *info = NULL;
if (!core_info_list || !core)
return false;
path[0] = '\0';
info = core_info_find_internal(core_info_list, core);
if (!info)
return false;
runloop_ctl(RUNLOOP_CTL_UNSET_MISSING_BIOS, NULL);
for (i = 0; i < info->firmware_count; i++)
{
if (string_is_empty(info->firmware[i].path))
continue;
fill_pathname_join(path, systemdir,
info->firmware[i].path, sizeof(path));
info->firmware[i].missing = !path_file_exists(path);
if (info->firmware[i].missing && !info->firmware[i].optional)
{
runloop_ctl(RUNLOOP_CTL_SET_MISSING_BIOS, NULL);
RARCH_WARN("Firmware missing: %s\n", info->firmware[i].path);
}
}
return true;
}
#if 0
static int core_info_firmware_cmp(const void *a_, const void *b_)
{
const core_info_firmware_t *a = (const core_info_firmware_t*)a_;
const core_info_firmware_t *b = (const core_info_firmware_t*)b_;
int order = b->missing - a->missing;
if (order)
return order;
return strcasecmp(a->path, b->path);
}
/* Non-reentrant, does not allocate. Returns pointer to internal state. */
static void core_info_list_get_missing_firmware(
core_info_list_t *core_info_list,
const char *core, const char *systemdir,
const core_info_firmware_t **firmware, size_t *num_firmware)
{
size_t i;
char path[PATH_MAX_LENGTH];
core_info_t *info = NULL;
if (!core_info_list || !core)
return;
path[0] = '\0';
*firmware = NULL;
*num_firmware = 0;
info = core_info_find_internal(core_info_list, core);
if (!info)
return;
*firmware = info->firmware;
for (i = 1; i < info->firmware_count; i++)
{
fill_pathname_join(path, systemdir,
info->firmware[i].path, sizeof(path));
info->firmware[i].missing = !path_file_exists(path);
*num_firmware += info->firmware[i].missing;
}
qsort(info->firmware, info->firmware_count, sizeof(*info->firmware),
core_info_firmware_cmp);
}
#endif
void core_info_free_current_core(void)
{
if (core_info_current)
free(core_info_current);
core_info_current = NULL;
}
bool core_info_init_current_core(void)
{
core_info_current = (core_info_t*)calloc(1, sizeof(core_info_t));
if (!core_info_current)
return false;
return true;
}
bool core_info_get_current_core(core_info_t **core)
{
if (!core)
return false;
*core = core_info_current;
return true;
}
void core_info_deinit_list(void)
{
if (core_info_curr_list)
core_info_list_free(core_info_curr_list);
core_info_curr_list = NULL;
}
bool core_info_init_list(void)
{
settings_t *settings = config_get_ptr();
if (settings)
core_info_curr_list = core_info_list_new(settings->directory.libretro);
if (!core_info_curr_list)
return false;
return true;
}
bool core_info_get_list(core_info_list_t **core)
{
if (!core)
return false;
*core = core_info_curr_list;
return true;
}
bool core_info_list_update_missing_firmware(core_info_ctx_firmware_t *info)
{
if (!info)
return false;
return core_info_list_update_missing_firmware_internal(
core_info_curr_list,
info->path, info->directory.system);
}
bool core_info_load(core_info_ctx_find_t *info)
{
core_info_t *core_info = NULL;
if (!info)
return false;
core_info_get_current_core(&core_info);
if (!core_info_curr_list)
return false;
if (!core_info_list_get_info(core_info_curr_list,
core_info, info->path))
return false;
return true;
}
bool core_info_find(core_info_ctx_find_t *info, const char *core_path)
{
if (!info || !core_info_curr_list)
return false;
info->inf = core_info_find_internal(core_info_curr_list, core_path);
if (!info->inf)
return false;
return true;
}
core_info_t *core_info_get(core_info_list_t *list, size_t i)
{
core_info_t *info = NULL;
if (!list)
return NULL;
info = (core_info_t*)&list->list[i];
if (!info || !info->path)
return NULL;
return info;
}
void core_info_list_get_supported_cores(core_info_list_t *core_info_list,
const char *path, const core_info_t **infos, size_t *num_infos)
{
size_t i;
struct string_list *list = NULL;
size_t supported = 0;
if (!core_info_list)
return;
core_info_tmp_path = path;
#ifdef HAVE_COMPRESSION
if (path_is_compressed_file(path))
list = file_archive_get_file_list(path, NULL);
core_info_tmp_list = list;
#endif
/* Let supported core come first in list so we can return
* a pointer to them. */
qsort(core_info_list->list, core_info_list->count,
sizeof(core_info_t), core_info_qsort_cmp);
for (i = 0; i < core_info_list->count; i++, supported++)
{
const core_info_t *core = &core_info_list->list[i];
if (core_info_does_support_file(core, path))
continue;
#ifdef HAVE_COMPRESSION
if (core_info_does_support_any_file(core, list))
continue;
#endif
break;
}
if (list)
string_list_free(list);
*infos = core_info_list->list;
*num_infos = supported;
}
void core_info_get_name(const char *path, char *s, size_t len)
{
size_t i;
settings_t *settings = config_get_ptr();
struct string_list *contents = dir_list_new_special(
settings->directory.libretro,
DIR_LIST_CORES, NULL);
if (!contents)
return;
for (i = 0; i < contents->size; i++)
{
char info_path[PATH_MAX_LENGTH];
config_file_t *conf = NULL;
char *new_core_name = NULL;
info_path[0] = '\0';
if (!string_is_equal(contents->elems[i].data, path))
continue;
if (!core_info_list_iterate(info_path,
sizeof(info_path), contents, i)
&& path_is_valid(info_path))
continue;
conf = config_file_new(info_path);
if (!conf)
continue;
if (config_get_string(conf, "corename",
&new_core_name))
{
strlcpy(s, new_core_name, len);
free(new_core_name);
}
config_file_free(conf);
break;
}
if (contents)
dir_list_free(contents);
contents = NULL;
}
size_t core_info_list_num_info_files(core_info_list_t *core_info_list)
{
size_t i, num = 0;
if (!core_info_list)
return 0;
for (i = 0; i < core_info_list->count; i++)
{
config_file_t *conf = (config_file_t*)
core_info_list->list[i].config_data;
num += !!conf;
}
return num;
}
bool core_info_unsupported_content_path(const char *path)
{
size_t i;
const char *archive_path = NULL;
const char *delim = path_get_archive_delim(path);
if (delim)
archive_path = delim - 1;
if (!core_info_curr_list)
return false;
/* if the path contains a compressed file and the core supports archives,
* we don't want to look at this file */
if (archive_path)
{
for (i = 0; i < core_info_curr_list->count; i++)
{
const core_info_t *info = &core_info_curr_list->list[i];
if ( !string_list_find_elem(info->supported_extensions_list, "zip")
&& !string_list_find_elem(info->supported_extensions_list, "7z"))
continue;
return false;
}
}
for (i = 0; i < core_info_curr_list->count; i++)
{
const core_info_t *info = &core_info_curr_list->list[i];
if (string_list_find_elem(info->supported_extensions_list, path_get_extension(path)))
return false;
}
return true;
}
bool core_info_database_supports_content_path(const char *database_path, const char *path)
{
size_t i;
char *database = NULL;
const char *delim = NULL;
const char *archive_path = NULL;
if (!core_info_curr_list)
return false;
database = strdup(path_basename(database_path));
path_remove_extension(database);
delim = path_get_archive_delim(path);
if (delim)
archive_path = delim - 1;
/* if the path contains a compressed file and the core supports archives,
* we don't want to look at this file */
if (archive_path)
{
for (i = 0; i < core_info_curr_list->count; i++)
{
const core_info_t *info = &core_info_curr_list->list[i];
if (!string_list_find_elem(info->databases_list, database))
continue;
if ( !string_list_find_elem(info->supported_extensions_list, "zip")
&& !string_list_find_elem(info->supported_extensions_list, "7z"))
continue;
free(database);
return false;
}
}
for (i = 0; i < core_info_curr_list->count; i++)
{
const core_info_t *info = &core_info_curr_list->list[i];
if (!string_list_find_elem(info->supported_extensions_list, path_get_extension(path)))
continue;
if (!string_list_find_elem(info->databases_list, database))
continue;
free(database);
return true;
}
free(database);
return false;
}
bool core_info_list_get_display_name(core_info_list_t *core_info_list,
const char *path, char *s, size_t len)
{
size_t i;
if (!core_info_list)
return false;
for (i = 0; i < core_info_list->count; i++)
{
const core_info_t *info = &core_info_list->list[i];
if (!string_is_equal(path_basename(info->path), path_basename(path)))
continue;
if (!info->display_name)
continue;
strlcpy(s, info->display_name, len);
return true;
}
return false;
}
bool core_info_get_display_name(const char *path, char *s, size_t len)
{
bool ret = true;
char *tmp = NULL;
config_file_t *conf = config_file_new(path);
if (!conf)
{
ret = false;
goto error;
}
if (config_get_string(conf, "display_name", &tmp))
{
snprintf(s, len, "%s", tmp);
free(tmp);
}
error:
config_file_free(conf);
return ret;
}
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