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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) 2011-2017 - 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 <compat/strl.h>
#include <string/stdstring.h>
#include <file/config_file.h>
#include <file/file_path.h>
#include <streams/file_stream.h>
#include <lists/dir_list.h>
#include <file/archive_file.h>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "retroarch.h"
#include "core_info.h"
#include "file_path_special.h"
#if defined(__WINRT__) || defined(WINAPI_FAMILY) && WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
#include "uwp/uwp_func.h"
#endif
#if defined(ANDROID)
#include "play_feature_delivery/play_feature_delivery.h"
#endif
enum compare_op
{
COMPARE_OP_EQUAL = 0,
COMPARE_OP_NOT_EQUAL,
COMPARE_OP_LESS,
COMPARE_OP_LESS_EQUAL,
COMPARE_OP_GREATER,
COMPARE_OP_GREATER_EQUAL
};
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;
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);
}
all_ext_len += STRLEN_CONST("7z|") + STRLEN_CONST("zip|");
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);
}
#ifdef HAVE_7ZIP
strlcat(core_info_list->all_ext, "7z|", all_ext_len);
#endif
#ifdef HAVE_ZLIB
strlcat(core_info_list->all_ext, "zip|", all_ext_len);
#endif
}
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];
struct config_entry_list
*entry = NULL;
bool tmp_bool = false;
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);
entry = config_get_entry(config, path_key);
if (entry && !string_is_empty(entry->value))
info->firmware[c].path = strdup(entry->value);
entry = config_get_entry(config, desc_key);
if (entry && !string_is_empty(entry->value))
info->firmware[c].desc = strdup(entry->value);
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_id);
free(info->system_manufacturer);
free(info->display_name);
free(info->display_version);
free(info->supported_extensions);
free(info->authors);
free(info->permissions);
free(info->licenses);
free(info->categories);
free(info->databases);
free(info->notes);
free(info->required_hw_api);
free(info->description);
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);
string_list_free(info->required_hw_api_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(info->core_file_id.str);
}
free(core_info_list->all_ext);
free(core_info_list->list);
free(core_info_list);
}
static config_file_t *core_info_list_iterate(
const char *current_path,
const char *path_basedir)
{
char info_path[PATH_MAX_LENGTH];
char info_path_base[PATH_MAX_LENGTH];
if (!current_path)
return NULL;
info_path [0] = '\0';
info_path_base[0] = '\0';
fill_pathname_base_noext(info_path_base,
current_path,
sizeof(info_path_base));
#if defined(RARCH_MOBILE) || (defined(RARCH_CONSOLE) && !defined(PSP) && !defined(_3DS) && !defined(VITA) && !defined(HW_WUP))
{
char *substr = strrchr(info_path_base, '_');
if (substr)
*substr = '\0';
}
#endif
strlcat(info_path_base, ".info", sizeof(info_path_base));
fill_pathname_join(info_path,
path_basedir,
info_path_base, sizeof(info_path_base));
if (path_is_valid(info_path))
return config_file_new_from_path_to_string(info_path);
return NULL;
}
static core_info_list_t *core_info_list_new(const char *path,
const char *libretro_info_dir,
const char *exts,
bool dir_show_hidden_files)
{
size_t i;
struct string_list contents = {0};
core_info_t *core_info = NULL;
core_info_list_t *core_info_list = NULL;
const char *path_basedir = libretro_info_dir;
bool ok = false;
string_list_initialize(&contents);
if (dir_list_append(&contents, path, exts,
false, dir_show_hidden_files, false, false))
ok = true;
#if defined(__WINRT__) || defined(WINAPI_FAMILY) && WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
{
/* UWP: browse the optional packages for additional cores */
struct string_list core_packages = {0};
if (string_list_initialize(&core_packages))
{
uwp_fill_installed_core_packages(&core_packages);
for (i = 0; i < core_packages.size; i++)
dir_list_append(&contents, core_packages.elems[i].data, exts,
false, dir_show_hidden_files, false, false);
string_list_deinitialize(&core_packages);
}
}
#else
/* Keep the old 'directory not found' behavior */
if (!ok)
goto error;
#endif
core_info_list = (core_info_list_t*)malloc(sizeof(*core_info_list));
if (!core_info_list)
goto error;
core_info_list->list = NULL;
core_info_list->count = 0;
core_info_list->all_ext = NULL;
core_info = (core_info_t*)
calloc(contents.size, sizeof(*core_info));
if (!core_info)
{
core_info_list_free(core_info_list);
goto error;
}
core_info_list->list = core_info;
core_info_list->count = contents.size;
for (i = 0; i < contents.size; i++)
{
const char *base_path = contents.elems[i].data;
config_file_t *conf = core_info_list_iterate(base_path,
path_basedir);
if (conf)
{
bool tmp_bool = false;
unsigned tmp_uint = 0;
struct config_entry_list
*entry = config_get_entry(conf, "display_name");
if (entry && !string_is_empty(entry->value))
core_info[i].display_name = strdup(entry->value);
entry = config_get_entry(conf, "display_version");
if (entry && !string_is_empty(entry->value))
core_info[i].display_version = strdup(entry->value);
entry = config_get_entry(conf, "corename");
if (entry && !string_is_empty(entry->value))
core_info[i].core_name = strdup(entry->value);
entry = config_get_entry(conf, "systemname");
if (entry && !string_is_empty(entry->value))
core_info[i].systemname = strdup(entry->value);
entry = config_get_entry(conf, "systemid");
if (entry && !string_is_empty(entry->value))
core_info[i].system_id = strdup(entry->value);
entry = config_get_entry(conf, "manufacturer");
if (entry && !string_is_empty(entry->value))
core_info[i].system_manufacturer = strdup(entry->value);
config_get_uint(conf, "firmware_count", &tmp_uint);
core_info[i].firmware_count = tmp_uint;
entry = config_get_entry(conf, "supported_extensions");
if (entry && !string_is_empty(entry->value))
{
core_info[i].supported_extensions = strdup(entry->value);
core_info[i].supported_extensions_list =
string_split(core_info[i].supported_extensions, "|");
}
entry = config_get_entry(conf, "authors");
if (entry && !string_is_empty(entry->value))
{
core_info[i].authors = strdup(entry->value);
core_info[i].authors_list =
string_split(core_info[i].authors, "|");
}
entry = config_get_entry(conf, "permissions");
if (entry && !string_is_empty(entry->value))
{
core_info[i].permissions = strdup(entry->value);
core_info[i].permissions_list =
string_split(core_info[i].permissions, "|");
}
entry = config_get_entry(conf, "license");
if (entry && !string_is_empty(entry->value))
{
core_info[i].licenses = strdup(entry->value);
core_info[i].licenses_list =
string_split(core_info[i].licenses, "|");
}
entry = config_get_entry(conf, "categories");
if (entry && !string_is_empty(entry->value))
{
core_info[i].categories = strdup(entry->value);
core_info[i].categories_list =
string_split(core_info[i].categories, "|");
}
entry = config_get_entry(conf, "database");
if (entry && !string_is_empty(entry->value))
{
core_info[i].databases = strdup(entry->value);
core_info[i].databases_list =
string_split(core_info[i].databases, "|");
}
entry = config_get_entry(conf, "notes");
if (entry && !string_is_empty(entry->value))
{
core_info[i].notes = strdup(entry->value);
core_info[i].note_list =
string_split(core_info[i].notes, "|");
}
entry = config_get_entry(conf, "required_hw_api");
if (entry && !string_is_empty(entry->value))
{
core_info[i].required_hw_api = strdup(entry->value);
core_info[i].required_hw_api_list =
string_split(core_info[i].required_hw_api, "|");
}
entry = config_get_entry(conf, "description");
if (entry && !string_is_empty(entry->value))
core_info[i].description = strdup(entry->value);
if (config_get_bool(conf, "supports_no_game",
&tmp_bool))
core_info[i].supports_no_game = tmp_bool;
if (config_get_bool(conf, "database_match_archive_member",
&tmp_bool))
core_info[i].database_match_archive_member = tmp_bool;
if (config_get_bool(conf, "is_experimental",
&tmp_bool))
core_info[i].is_experimental = tmp_bool;
core_info[i].config_data = conf;
}
if (!string_is_empty(base_path))
{
const char *core_filename = path_basename(base_path);
/* Cache core path */
core_info[i].path = strdup(base_path);
/* Cache core file 'id'
* > Filename without extension or platform-specific suffix */
if (!string_is_empty(core_filename))
{
char *core_file_id = strdup(core_filename);
path_remove_extension(core_file_id);
if (!string_is_empty(core_file_id))
{
#if defined(RARCH_MOBILE) || (defined(RARCH_CONSOLE) && !defined(PSP) && !defined(_3DS) && !defined(VITA) && !defined(HW_WUP))
char *last_underscore = strrchr(core_file_id, '_');
if (last_underscore)
*last_underscore = '\0';
#endif
core_info[i].core_file_id.str = core_file_id;
core_info[i].core_file_id.len = strlen(core_file_id);
core_file_id = NULL;
}
if (core_file_id)
{
free(core_file_id);
core_file_id = NULL;
}
/* Get fallback display name, if required */
if (!core_info[i].display_name)
core_info[i].display_name = strdup(core_filename);
}
}
/* Get core lock status */
core_info[i].is_locked = core_info_get_core_lock(core_info[i].path, false);
}
if (core_info_list)
{
core_info_list_resolve_all_extensions(core_info_list);
core_info_list_resolve_all_firmware(core_info_list);
}
string_list_deinitialize(&contents);
return core_info_list;
error:
string_list_deinitialize(&contents);
return NULL;
}
/* Shallow-copies internal state.
*
* Data in *info is invalidated when the
* core_info_list is freed. */
bool core_info_list_get_info(core_info_list_t *core_info_list,
core_info_t *out_info, const char *path)
{
size_t i;
const char *core_filename = NULL;
if (!core_info_list || !out_info || string_is_empty(path))
return false;
core_filename = path_basename(path);
if (string_is_empty(core_filename))
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 (!info || (info->core_file_id.len == 0))
continue;
if (!strncmp(info->core_file_id.str, core_filename, info->core_file_id.len))
{
*out_info = *info;
return true;
}
}
return false;
}
#ifdef HAVE_COMPRESSION
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;
}
#endif
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_)
{
core_info_state_t *p_coreinfo = coreinfo_get_ptr();
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_file(a,
p_coreinfo->tmp_path);
int support_b = core_info_does_support_file(b,
p_coreinfo->tmp_path);
#ifdef HAVE_COMPRESSION
support_a = support_a ||
core_info_does_support_any_file(a, p_coreinfo->tmp_list);
support_b = support_b ||
core_info_does_support_any_file(b, p_coreinfo->tmp_list);
#endif
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;
const char *core_filename = NULL;
if (!list || string_is_empty(core))
return NULL;
core_filename = path_basename(core);
if (string_is_empty(core_filename))
return NULL;
for (i = 0; i < list->count; i++)
{
core_info_t *info = core_info_get(list, i);
if (!info || (info->core_file_id.len == 0))
continue;
if (!strncmp(info->core_file_id.str, core_filename, info->core_file_id.len))
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,
bool *set_missing_bios)
{
size_t i;
char path[PATH_MAX_LENGTH];
core_info_t *info = NULL;
if (!core_info_list || !core)
return false;
info = core_info_find_internal(core_info_list, core);
if (!info)
return false;
path[0] = '\0';
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_is_valid(path);
if (info->firmware[i].missing && !info->firmware[i].optional)
*set_missing_bios = true;
}
return true;
}
void core_info_free_current_core(core_info_state_t *p_coreinfo)
{
if (p_coreinfo->current)
free(p_coreinfo->current);
p_coreinfo->current = NULL;
}
bool core_info_init_current_core(void)
{
core_info_state_t *p_coreinfo = coreinfo_get_ptr();
core_info_t *current = (core_info_t*)
malloc(sizeof(*current));
if (!current)
return false;
current->supports_no_game = false;
current->database_match_archive_member = false;
current->is_experimental = false;
current->is_locked = false;
current->firmware_count = 0;
current->path = NULL;
current->config_data = NULL;
current->display_name = NULL;
current->display_version = NULL;
current->core_name = NULL;
current->system_manufacturer = NULL;
current->systemname = NULL;
current->system_id = NULL;
current->supported_extensions = NULL;
current->authors = NULL;
current->permissions = NULL;
current->licenses = NULL;
current->categories = NULL;
current->databases = NULL;
current->notes = NULL;
current->required_hw_api = NULL;
current->description = NULL;
current->categories_list = NULL;
current->databases_list = NULL;
current->note_list = NULL;
current->supported_extensions_list = NULL;
current->authors_list = NULL;
current->permissions_list = NULL;
current->licenses_list = NULL;
current->required_hw_api_list = NULL;
current->firmware = NULL;
current->core_file_id.str = NULL;
current->core_file_id.len = 0;
current->userdata = NULL;
p_coreinfo->current = current;
return true;
}
bool core_info_get_current_core(core_info_t **core)
{
core_info_state_t *p_coreinfo = coreinfo_get_ptr();
if (!core)
return false;
*core = p_coreinfo->current;
return true;
}
void core_info_deinit_list(void)
{
core_info_state_t *p_coreinfo = coreinfo_get_ptr();
if (p_coreinfo->curr_list)
core_info_list_free(p_coreinfo->curr_list);
p_coreinfo->curr_list = NULL;
}
bool core_info_init_list(const char *path_info, const char *dir_cores,
const char *exts, bool dir_show_hidden_files)
{
core_info_state_t *p_coreinfo = coreinfo_get_ptr();
if (!(p_coreinfo->curr_list = core_info_list_new(dir_cores,
!string_is_empty(path_info) ? path_info : dir_cores,
exts,
dir_show_hidden_files)))
return false;
return true;
}
bool core_info_get_list(core_info_list_t **core)
{
core_info_state_t *p_coreinfo = coreinfo_get_ptr();
if (!core)
return false;
*core = p_coreinfo->curr_list;
return true;
}
bool core_info_list_update_missing_firmware(core_info_ctx_firmware_t *info,
bool *set_missing_bios)
{
core_info_state_t *p_coreinfo = coreinfo_get_ptr();
if (!info)
return false;
return core_info_list_update_missing_firmware_internal(
p_coreinfo->curr_list,
info->path, info->directory.system,
set_missing_bios);
}
bool core_info_load(
core_info_ctx_find_t *info,
core_info_state_t *p_coreinfo)
{
core_info_t *core_info = NULL;
if (!info)
return false;
if (!p_coreinfo->current)
core_info_init_current_core();
core_info_get_current_core(&core_info);
if (!p_coreinfo->curr_list)
return false;
if (!core_info_list_get_info(p_coreinfo->curr_list,
core_info, info->path))
return false;
return true;
}
bool core_info_find(core_info_ctx_find_t *info)
{
core_info_state_t *p_coreinfo = coreinfo_get_ptr();
if (!info || !p_coreinfo->curr_list)
return false;
info->inf = core_info_find_internal(p_coreinfo->curr_list, info->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;
size_t supported = 0;
#ifdef HAVE_COMPRESSION
struct string_list *list = NULL;
#endif
core_info_state_t *p_coreinfo = coreinfo_get_ptr();
if (!core_info_list)
return;
p_coreinfo->tmp_path = path;
#ifdef HAVE_COMPRESSION
if (path_is_compressed_file(path))
list = file_archive_get_file_list(path, NULL);
p_coreinfo->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;
}
#ifdef HAVE_COMPRESSION
if (list)
string_list_free(list);
#endif
*infos = core_info_list->list;
*num_infos = supported;
}
/*
* Matches core path A and B "base" filename (ignoring everything after _libretro)
*
* Ex:
* snes9x_libretro.dll and snes9x_libretro_android.so are matched
* snes9x__2005_libretro.dll and snes9x_libretro_android.so are NOT matched
*/
bool core_info_core_file_id_is_equal(const char* core_path_a, const char* core_path_b)
{
const char *core_path_basename_a = NULL;
const char *extension_pos = NULL;
const char *underscore_pos = NULL;
if (!core_path_a || !core_path_b)
return false;
core_path_basename_a = path_basename(core_path_a);
if (core_path_basename_a)
{
extension_pos = strrchr(core_path_basename_a, '.');
if (extension_pos)
{
/* Remove extension */
*((char*)extension_pos) = '\0';
underscore_pos = strrchr(core_path_basename_a, '_');
/* Restore extension */
*((char*)extension_pos) = '.';
if (underscore_pos)
{
size_t core_base_file_id_length = underscore_pos - core_path_basename_a;
const char* core_path_basename_b = path_basename(core_path_b);
if (string_starts_with_size(core_path_basename_a, core_path_basename_b,
core_base_file_id_length))
return true;
}
}
}
return false;
}
void core_info_get_name(const char *path, char *s, size_t len,
const char *path_info, const char *dir_cores,
const char *exts, bool dir_show_hidden_files,
bool get_display_name)
{
size_t i;
struct string_list contents = {0};
const char *path_basedir = !string_is_empty(path_info) ?
path_info : dir_cores;
const char *core_path_basename = path_basename(path);
if (!dir_list_initialize(&contents,
dir_cores, exts, false, dir_show_hidden_files, false, false))
return;
for (i = 0; i < contents.size; i++)
{
struct config_entry_list
*entry = NULL;
config_file_t *conf = NULL;
const char *current_path = contents.elems[i].data;
if (!string_is_equal(path_basename(current_path), core_path_basename))
continue;
conf = core_info_list_iterate(contents.elems[i].data,
path_basedir);
if (!conf)
continue;
if (get_display_name)
entry = config_get_entry(conf, "display_name");
else
entry = config_get_entry(conf, "corename");
if (entry && !string_is_empty(entry->value))
strlcpy(s, entry->value, len);
config_file_free(conf);
break;
}
dir_list_deinitialize(&contents);
}
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_database_match_archive_member(const char *database_path)
{
char *database = NULL;
const char *new_path = path_basename(database_path);
core_info_state_t *p_coreinfo = coreinfo_get_ptr();
if (string_is_empty(new_path))
return false;
database = strdup(new_path);
if (string_is_empty(database))
goto error;
path_remove_extension(database);
if (p_coreinfo->curr_list)
{
size_t i;
for (i = 0; i < p_coreinfo->curr_list->count; i++)
{
const core_info_t *info = &p_coreinfo->curr_list->list[i];
if (!info->database_match_archive_member)
continue;
if (!string_list_find_elem(info->databases_list, database))
continue;
free(database);
return true;
}
}
error:
if (database)
free(database);
return false;
}
bool core_info_database_supports_content_path(
const char *database_path, const char *path)
{
char *database = NULL;
const char *new_path = path_basename(database_path);
core_info_state_t *p_coreinfo = coreinfo_get_ptr();
if (string_is_empty(new_path))
return false;
database = strdup(new_path);
if (string_is_empty(database))
goto error;
path_remove_extension(database);
if (p_coreinfo->curr_list)
{
size_t i;
for (i = 0; i < p_coreinfo->curr_list->count; i++)
{
const core_info_t *info = &p_coreinfo->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;
}
}
error:
if (database)
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;
const char *core_filename = NULL;
if (!core_info_list || string_is_empty(path))
return false;
core_filename = path_basename(path);
if (string_is_empty(core_filename))
return false;
for (i = 0; i < core_info_list->count; i++)
{
const core_info_t *info = &core_info_list->list[i];
if (!info || (info->core_file_id.len == 0))
continue;
if (!strncmp(info->core_file_id.str, core_filename, info->core_file_id.len))
{
if (string_is_empty(info->display_name))
break;
strlcpy(s, info->display_name, len);
return true;
}
}
return false;
}
bool core_info_get_display_name(const char *path, char *s, size_t len)
{
struct config_entry_list
*entry = NULL;
config_file_t *conf = config_file_new_from_path_to_string(path);
if (!conf)
return false;
entry = config_get_entry(conf, "display_name");
if (entry && !string_is_empty(entry->value))
strlcpy(s, entry->value, len);
config_file_free(conf);
return true;
}
/* Returns core_info parameters required for
* core updater tasks, read from specified file.
* Returned core_updater_info_t object must be
* freed using core_info_free_core_updater_info().
* Returns NULL if 'path' is invalid. */
core_updater_info_t *core_info_get_core_updater_info(const char *path)
{
struct config_entry_list
*entry = NULL;
bool tmp_bool = false;
core_updater_info_t *info = NULL;
config_file_t *conf = NULL;
if (string_is_empty(path))
return NULL;
/* Read config file */
conf = config_file_new_from_path_to_string(path);
if (!conf)
return NULL;
/* Create info struct */
info = (core_updater_info_t*)malloc(sizeof(*info));
if (!info)
return NULL;
info->is_experimental = false;
info->display_name = NULL;
info->description = NULL;
info->licenses = NULL;
/* Fetch required parameters */
/* > is_experimental */
if (config_get_bool(conf, "is_experimental", &tmp_bool))
info->is_experimental = tmp_bool;
/* > display_name */
entry = config_get_entry(conf, "display_name");
if (entry && !string_is_empty(entry->value))
info->display_name = strdup(entry->value);
/* > description */
entry = config_get_entry(conf, "description");
if (entry && !string_is_empty(entry->value))
info->description = strdup(entry->value);
/* > licenses */
entry = config_get_entry(conf, "license");
if (entry && !string_is_empty(entry->value))
info->licenses = strdup(entry->value);
/* Clean up */
config_file_free(conf);
return info;
}
void core_info_free_core_updater_info(core_updater_info_t *info)
{
if (!info)
return;
if (info->display_name)
free(info->display_name);
if (info->description)
free(info->description);
if (info->licenses)
free(info->licenses);
free(info);
info = NULL;
}
static int core_info_qsort_func_path(const core_info_t *a,
const core_info_t *b)
{
if (!a || !b)
return 0;
if (string_is_empty(a->path) || string_is_empty(b->path))
return 0;
return strcasecmp(a->path, b->path);
}
static int core_info_qsort_func_display_name(const core_info_t *a,
const core_info_t *b)
{
if (!a || !b)
return 0;
if (string_is_empty(a->display_name) || string_is_empty(b->display_name))
return 0;
return strcasecmp(a->display_name, b->display_name);
}
static int core_info_qsort_func_core_name(const core_info_t *a,
const core_info_t *b)
{
if (!a || !b)
return 0;
if (string_is_empty(a->core_name) || string_is_empty(b->core_name))
return 0;
return strcasecmp(a->core_name, b->core_name);
}
static int core_info_qsort_func_system_name(const core_info_t *a,
const core_info_t *b)
{
if (!a || !b)
return 0;
if (string_is_empty(a->systemname) || string_is_empty(b->systemname))
return 0;
return strcasecmp(a->systemname, b->systemname);
}
void core_info_qsort(core_info_list_t *core_info_list,
enum core_info_list_qsort_type qsort_type)
{
if (!core_info_list)
return;
if (core_info_list->count < 2)
return;
switch (qsort_type)
{
case CORE_INFO_LIST_SORT_PATH:
qsort(core_info_list->list,
core_info_list->count,
sizeof(core_info_t),
(int (*)(const void *, const void *))
core_info_qsort_func_path);
break;
case CORE_INFO_LIST_SORT_DISPLAY_NAME:
qsort(core_info_list->list,
core_info_list->count,
sizeof(core_info_t),
(int (*)(const void *, const void *))
core_info_qsort_func_display_name);
break;
case CORE_INFO_LIST_SORT_CORE_NAME:
qsort(core_info_list->list,
core_info_list->count,
sizeof(core_info_t),
(int (*)(const void *, const void *))
core_info_qsort_func_core_name);
break;
case CORE_INFO_LIST_SORT_SYSTEM_NAME:
qsort(core_info_list->list,
core_info_list->count,
sizeof(core_info_t),
(int (*)(const void *, const void *))
core_info_qsort_func_system_name);
break;
default:
return;
}
}
static bool core_info_compare_api_version(int sys_major, int sys_minor, int major, int minor, enum compare_op op)
{
switch (op)
{
case COMPARE_OP_EQUAL:
if (sys_major == major && sys_minor == minor)
return true;
break;
case COMPARE_OP_NOT_EQUAL:
if (!(sys_major == major && sys_minor == minor))
return true;
break;
case COMPARE_OP_LESS:
if (sys_major < major || (sys_major == major && sys_minor < minor))
return true;
break;
case COMPARE_OP_LESS_EQUAL:
if (sys_major < major || (sys_major == major && sys_minor <= minor))
return true;
break;
case COMPARE_OP_GREATER:
if (sys_major > major || (sys_major == major && sys_minor > minor))
return true;
break;
case COMPARE_OP_GREATER_EQUAL:
if (sys_major > major || (sys_major == major && sys_minor >= minor))
return true;
break;
default:
break;
}
return false;
}
bool core_info_hw_api_supported(core_info_t *info)
{
#ifdef RARCH_INTERNAL
unsigned i;
enum gfx_ctx_api sys_api;
int sys_api_version_major = 0;
int sys_api_version_minor = 0;
const char *sys_api_version_str = video_driver_get_gpu_api_version_string();
gfx_ctx_flags_t sys_flags = video_driver_get_flags_wrapper();
enum api_parse_state
{
STATE_API_NAME,
STATE_API_COMPARE_OP,
STATE_API_VERSION
};
if (!info || !info->required_hw_api_list || info->required_hw_api_list->size == 0)
return true;
sys_api = video_context_driver_get_api();
for (i = 0; i < info->required_hw_api_list->size; i++)
{
char api_str[32] = {0};
char version[16] = {0};
char major_str[16] = {0};
char minor_str[16] = {0};
const char *cur_api = info->required_hw_api_list->elems[i].data;
int api_pos = 0;
int major_str_pos = 0;
int minor_str_pos = 0;
int major = 0;
int minor = 0;
unsigned cur_api_len = 0;
unsigned j = 0;
bool found_major = false;
bool found_minor = false;
enum compare_op op = COMPARE_OP_GREATER_EQUAL;
enum api_parse_state state = STATE_API_NAME;
if (string_is_empty(cur_api))
continue;
cur_api_len = (int)strlen(cur_api);
for (j = 0; j < cur_api_len; j++)
{
if (cur_api[j] == ' ')
continue;
switch (state)
{
case STATE_API_NAME:
{
if ( isupper((unsigned char)cur_api[j]) ||
islower((unsigned char)cur_api[j]))
api_str[api_pos++] = cur_api[j];
else
{
j--;
state = STATE_API_COMPARE_OP;
break;
}
break;
}
case STATE_API_COMPARE_OP:
{
if (j < cur_api_len - 1 && !(cur_api[j] >= '0' && cur_api[j] <= '9'))
{
if (cur_api[j] == '=' && cur_api[j + 1] == '=')
{
op = COMPARE_OP_EQUAL;
j++;
}
else if (cur_api[j] == '=')
op = COMPARE_OP_EQUAL;
else if (cur_api[j] == '!' && cur_api[j + 1] == '=')
{
op = COMPARE_OP_NOT_EQUAL;
j++;
}
else if (cur_api[j] == '<' && cur_api[j + 1] == '=')
{
op = COMPARE_OP_LESS_EQUAL;
j++;
}
else if (cur_api[j] == '>' && cur_api[j + 1] == '=')
{
op = COMPARE_OP_GREATER_EQUAL;
j++;
}
else if (cur_api[j] == '<')
op = COMPARE_OP_LESS;
else if (cur_api[j] == '>')
op = COMPARE_OP_GREATER;
}
state = STATE_API_VERSION;
break;
}
case STATE_API_VERSION:
{
if (!found_minor && cur_api[j] >= '0' && cur_api[j] <= '9' && cur_api[j] != '.')
{
found_major = true;
if (major_str_pos < sizeof(major_str) - 1)
major_str[major_str_pos++] = cur_api[j];
}
else if (found_major && found_minor && cur_api[j] >= '0' && cur_api[j] <= '9')
{
if (minor_str_pos < sizeof(minor_str) - 1)
minor_str[minor_str_pos++] = cur_api[j];
}
else if (cur_api[j] == '.')
found_minor = true;
break;
}
default:
break;
}
}
sscanf(major_str, "%d", &major);
sscanf(minor_str, "%d", &minor);
snprintf(version, sizeof(version), "%d.%d", major, minor);
#if 0
printf("Major: %d\n", major);
printf("Minor: %d\n", minor);
printf("API: %s\n", api_str);
printf("Version: %s\n", version);
fflush(stdout);
#endif
if ((string_is_equal_noncase(api_str, "opengl") && sys_api == GFX_CTX_OPENGL_API) ||
(string_is_equal_noncase(api_str, "openglcompat") && sys_api == GFX_CTX_OPENGL_API) ||
(string_is_equal_noncase(api_str, "openglcompatibility") && sys_api == GFX_CTX_OPENGL_API))
{
/* system is running a core context while compat is requested */
if (sys_flags.flags & (1 << GFX_CTX_FLAGS_GL_CORE_CONTEXT))
return false;
sscanf(sys_api_version_str, "%d.%d", &sys_api_version_major, &sys_api_version_minor);
if (core_info_compare_api_version(sys_api_version_major, sys_api_version_minor, major, minor, op))
return true;
}
else if (string_is_equal_noncase(api_str, "openglcore") && sys_api == GFX_CTX_OPENGL_API)
{
sscanf(sys_api_version_str, "%d.%d", &sys_api_version_major, &sys_api_version_minor);
if (core_info_compare_api_version(sys_api_version_major, sys_api_version_minor, major, minor, op))
return true;
}
else if (string_is_equal_noncase(api_str, "opengles") && sys_api == GFX_CTX_OPENGL_ES_API)
{
sscanf(sys_api_version_str, "OpenGL ES %d.%d", &sys_api_version_major, &sys_api_version_minor);
if (core_info_compare_api_version(sys_api_version_major, sys_api_version_minor, major, minor, op))
return true;
}
else if (string_is_equal_noncase(api_str, "direct3d8") && sys_api == GFX_CTX_DIRECT3D8_API)
{
sys_api_version_major = 8;
sys_api_version_minor = 0;
if (core_info_compare_api_version(sys_api_version_major, sys_api_version_minor, major, minor, op))
return true;
}
else if (string_is_equal_noncase(api_str, "direct3d9") && sys_api == GFX_CTX_DIRECT3D9_API)
{
sys_api_version_major = 9;
sys_api_version_minor = 0;
if (core_info_compare_api_version(sys_api_version_major, sys_api_version_minor, major, minor, op))
return true;
}
else if (string_is_equal_noncase(api_str, "direct3d10") && sys_api == GFX_CTX_DIRECT3D10_API)
{
sys_api_version_major = 10;
sys_api_version_minor = 0;
if (core_info_compare_api_version(sys_api_version_major, sys_api_version_minor, major, minor, op))
return true;
}
else if (string_is_equal_noncase(api_str, "direct3d11") && sys_api == GFX_CTX_DIRECT3D11_API)
{
sys_api_version_major = 11;
sys_api_version_minor = 0;
if (core_info_compare_api_version(sys_api_version_major, sys_api_version_minor, major, minor, op))
return true;
}
else if (string_is_equal_noncase(api_str, "direct3d12") && sys_api == GFX_CTX_DIRECT3D12_API)
{
sys_api_version_major = 12;
sys_api_version_minor = 0;
if (core_info_compare_api_version(sys_api_version_major, sys_api_version_minor, major, minor, op))
return true;
}
else if (string_is_equal_noncase(api_str, "vulkan") && sys_api == GFX_CTX_VULKAN_API)
{
sscanf(sys_api_version_str, "%d.%d", &sys_api_version_major, &sys_api_version_minor);
if (core_info_compare_api_version(sys_api_version_major, sys_api_version_minor, major, minor, op))
return true;
}
else if (string_is_equal_noncase(api_str, "metal") && sys_api == GFX_CTX_METAL_API)
{
sscanf(sys_api_version_str, "%d.%d", &sys_api_version_major, &sys_api_version_minor);
if (core_info_compare_api_version(sys_api_version_major, sys_api_version_minor, major, minor, op))
return true;
}
}
return false;
#else
return true;
#endif
}
/* Sets 'locked' status of specified core
* > Returns true if successful
* > Like all functions that access the cached
* core info list this is *not* thread safe */
bool core_info_set_core_lock(const char *core_path, bool lock)
{
core_info_ctx_find_t core_info;
char lock_file_path[PATH_MAX_LENGTH];
bool lock_file_exists = false;
lock_file_path[0] = '\0';
#if defined(ANDROID)
/* Play Store builds do not support
* core locking */
if (play_feature_delivery_enabled())
return false;
#endif
if (string_is_empty(core_path))
return false;
/* Search for specified core */
core_info.inf = NULL;
core_info.path = core_path;
if (!core_info_find(&core_info))
return false;
if (string_is_empty(core_info.inf->path))
return false;
/* Get lock file path */
strlcpy(lock_file_path, core_info.inf->path,
sizeof(lock_file_path));
strlcat(lock_file_path, FILE_PATH_LOCK_EXTENSION,
sizeof(lock_file_path));
if (string_is_empty(lock_file_path))
return false;
/* Check whether lock file exists */
lock_file_exists = path_is_valid(lock_file_path);
/* Create or delete lock file, as required */
if (lock && !lock_file_exists)
{
RFILE *lock_file = filestream_open(
lock_file_path,
RETRO_VFS_FILE_ACCESS_WRITE,
RETRO_VFS_FILE_ACCESS_HINT_NONE);
if (!lock_file)
return false;
/* We have to write something - just output
* a single character */
if (filestream_putc(lock_file, 0) != 0)
{
filestream_close(lock_file);
return false;
}
filestream_close(lock_file);
}
else if (!lock && lock_file_exists)
if (filestream_delete(lock_file_path) != 0)
return false;
/* File operations were successful - update
* core info entry */
core_info.inf->is_locked = lock;
return true;
}
/* Fetches 'locked' status of specified core
* > If 'validate_path' is 'true', will search
* cached core info list for a corresponding
* 'sanitised' core file path. This is *not*
* thread safe
* > If 'validate_path' is 'false', performs a
* direct filesystem check. This *is* thread
* safe, but validity of specified core path
* must be checked externally */
bool core_info_get_core_lock(const char *core_path, bool validate_path)
{
char lock_file_path[PATH_MAX_LENGTH];
const char *core_file_path = NULL;
bool is_locked = false;
core_info_ctx_find_t core_info;
lock_file_path[0] = '\0';
#if defined(ANDROID)
/* Play Store builds do not support
* core locking */
if (play_feature_delivery_enabled())
return false;
#endif
if (string_is_empty(core_path))
return false;
core_info.inf = NULL;
core_info.path = NULL;
/* Check whether core path is to be validated */
if (validate_path)
{
core_info.path = core_path;
if (core_info_find(&core_info))
core_file_path = core_info.inf->path;
}
else
core_file_path = core_path;
/* A core cannot be locked if it does not exist... */
if (string_is_empty(core_file_path) ||
!path_is_valid(core_file_path))
return false;
/* Get lock file path */
strlcpy(lock_file_path, core_file_path,
sizeof(lock_file_path));
strlcat(lock_file_path, FILE_PATH_LOCK_EXTENSION,
sizeof(lock_file_path));
if (string_is_empty(lock_file_path))
return false;
/* Check whether lock file exists */
is_locked = path_is_valid(lock_file_path);
/* If core path has been validated (and a
* core info object is available), ensure
* that core info 'is_locked' field is
* up to date */
if (validate_path && core_info.inf)
core_info.inf->is_locked = is_locked;
return is_locked;
}
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