RetroArch/core_info.c
2016-09-19 03:54:57 +02:00

752 lines
19 KiB
C

/* 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
*
* 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>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#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, all_ext_len = 0;
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)
core_info_list->all_ext = (char*)calloc(1, all_ext_len);
if (!core_info_list->all_ext)
return;
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;
if (!core_info_list)
return;
for (i = 0; i < core_info_list->count; i++)
{
unsigned count = 0;
core_info_t *info = (core_info_t*)&core_info_list->list[i];
config_file_t *config = (config_file_t*)info->config_data;
if (!config)
continue;
if (!config_get_uint(config, "firmware_count", &count))
continue;
info->firmware = (core_info_firmware_t*)
calloc(count, sizeof(*info->firmware));
if (!info->firmware)
continue;
for (c = 0; c < count; c++)
{
char path_key[64] = {0};
char desc_key[64] = {0};
char opt_key[64] = {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);
config_get_string(config, path_key, &info->firmware[c].path);
config_get_string(config, desc_key, &info->firmware[c].desc);
config_get_bool(config, opt_key , &info->firmware[c].optional);
}
}
}
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);
if (info->supported_extensions_list)
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 config_file_t *core_info_list_iterate(
struct string_list *contents, size_t i)
{
char info_path_base[PATH_MAX_LENGTH] = {0};
char info_path[PATH_MAX_LENGTH] = {0};
settings_t *settings = config_get_ptr();
if (!contents->elems[i].data)
return NULL;
fill_pathname_base_noext(info_path_base, contents->elems[i].data,
sizeof(info_path_base));
#if defined(RARCH_MOBILE) || (defined(RARCH_CONSOLE) && !defined(PSP))
char *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(info_path,
(!string_is_empty(settings->path.libretro_info)) ?
settings->path.libretro_info : settings->directory.libretro,
info_path_base, sizeof(info_path));
return config_file_new(info_path);
}
static core_info_list_t *core_info_list_new(void)
{
size_t i;
core_info_t *core_info = NULL;
core_info_list_t *core_info_list = NULL;
struct string_list *contents = NULL;
settings_t *settings = config_get_ptr();
if (!settings)
return NULL;
contents = dir_list_new_special(
settings->directory.libretro,
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++)
{
config_file_t *conf = core_info_list_iterate(contents, i);
if (conf)
{
bool tmp_bool = false;
unsigned count = 0;
config_get_string(conf, "display_name",
&core_info[i].display_name);
config_get_string(conf, "corename",
&core_info[i].core_name);
config_get_string(conf, "systemname",
&core_info[i].systemname);
config_get_string(conf, "manufacturer",
&core_info[i].system_manufacturer);
config_get_uint(conf, "firmware_count", &count);
core_info[i].firmware_count = count;
if (config_get_string(conf, "supported_extensions",
&core_info[i].supported_extensions) &&
core_info[i].supported_extensions)
core_info[i].supported_extensions_list =
string_split(core_info[i].supported_extensions, "|");
if (config_get_string(conf, "authors",
&core_info[i].authors) &&
core_info[i].authors)
core_info[i].authors_list =
string_split(core_info[i].authors, "|");
if (config_get_string(conf, "permissions",
&core_info[i].permissions) &&
core_info[i].permissions)
core_info[i].permissions_list =
string_split(core_info[i].permissions, "|");
if (config_get_string(conf, "license",
&core_info[i].licenses) &&
core_info[i].licenses)
core_info[i].licenses_list =
string_split(core_info[i].licenses, "|");
if (config_get_string(conf, "categories",
&core_info[i].categories) &&
core_info[i].categories)
core_info[i].categories_list =
string_split(core_info[i].categories, "|");
if (config_get_string(conf, "database",
&core_info[i].databases) &&
core_info[i].databases)
core_info[i].databases_list =
string_split(core_info[i].databases, "|");
if (config_get_string(conf, "notes",
&core_info[i].notes) &&
core_info[i].notes)
core_info[i].note_list = string_split(core_info[i].notes, "|");
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);
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 (!path || !core || !core->supported_extensions_list)
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)
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] = {0};
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;
for (i = 0; i < info->firmware_count; i++)
{
if (!info->firmware[i].path)
continue;
fill_pathname_join(path, systemdir,
info->firmware[i].path, sizeof(path));
info->firmware[i].missing = !path_file_exists(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] = {0};
core_info_t *info = NULL;
if (!core_info_list || !core)
return;
*firmware = NULL;
*num_firmware = 0;
if (!(info = core_info_find_internal(core_info_list, core)))
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)
{
core_info_curr_list = core_info_list_new();
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_ZLIB
if (string_is_equal_noncase(path_get_extension(path), "zip"))
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_ZLIB
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;
core_info_t *core_info = NULL;
core_info_list_t *core_info_list = NULL;
struct string_list *contents = NULL;
settings_t *settings = config_get_ptr();
if (!settings)
return;
contents = dir_list_new_special(
settings->directory.libretro,
DIR_LIST_CORES, NULL);
if (!contents)
return;
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++)
{
config_file_t *conf = NULL;
if (!string_is_equal(contents->elems[i].data, path))
continue;
conf = core_info_list_iterate(contents, i);
if (conf)
{
config_get_string(conf, "corename",
&core_info[i].core_name);
core_info[i].config_data = (void*)conf;
}
core_info[i].path = strdup(contents->elems[i].data);
strlcpy(s, core_info[i].core_name, len);
}
error:
if (contents)
dir_list_free(contents);
contents = NULL;
core_info_list_free(core_info_list);
}
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_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))
&& info->display_name)
{
strlcpy(s, info->display_name, len);
return true;
}
}
return false;
}
bool core_info_get_display_name(const char *path, char *s, size_t len)
{
char *core_name = NULL;
char *display_name = NULL;
config_file_t *conf = NULL;
if (!path_file_exists(path))
return false;
conf = config_file_new(path);
if (!conf)
return false;
config_get_string(conf, "corename",
&core_name);
config_get_string(conf, "display_name",
&display_name);
if (!core_name || !display_name)
goto error;
config_file_free(conf);
snprintf(s, len,"%s",display_name);
free(core_name);
free(display_name);
return true;
error:
config_file_free(conf);
if (core_name)
free(core_name);
if (display_name)
free(display_name);
return false;
}