mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-28 10:40:39 +00:00
143 lines
3.7 KiB
C
143 lines
3.7 KiB
C
/* RetroArch - A frontend for libretro.
|
|
* Copyright (C) 2011-2016 - Daniel De Matteis
|
|
*
|
|
* RetroArch is free software: you can redistribute it and/or modify it under the terms
|
|
* of the GNU General Public License as published by the Free Software Found-
|
|
* ation, either version 3 of the License, or (at your option) any later version.
|
|
*
|
|
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
|
|
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
* PURPOSE. See the GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with RetroArch.
|
|
* If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <stdio.h>
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <sys/types.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
#include <errno.h>
|
|
|
|
#include <lists/string_list.h>
|
|
#include <streams/file_stream.h>
|
|
|
|
#include "../core.h"
|
|
#include "../msg_hash.h"
|
|
#include "../verbosity.h"
|
|
#include "tasks_internal.h"
|
|
|
|
/* TODO/FIXME - turn this into actual task */
|
|
|
|
struct ram_type
|
|
{
|
|
const char *path;
|
|
int type;
|
|
};
|
|
|
|
/**
|
|
* content_load_ram_file:
|
|
* @path : path of RAM state that will be loaded from.
|
|
* @type : type of memory
|
|
*
|
|
* Load a RAM state from disk to memory.
|
|
*/
|
|
bool content_load_ram_file(unsigned slot)
|
|
{
|
|
ssize_t rc;
|
|
ram_type_t ram;
|
|
retro_ctx_memory_info_t mem_info;
|
|
global_t *global = global_get_ptr();
|
|
void *buf = NULL;
|
|
|
|
ram.path = global->savefiles->elems[slot].data;
|
|
ram.type = global->savefiles->elems[slot].attr.i;
|
|
|
|
mem_info.id = ram.type;
|
|
|
|
core_get_memory(&mem_info);
|
|
|
|
if (mem_info.size == 0 || !mem_info.data)
|
|
return false;
|
|
|
|
if (!filestream_read_file(ram.path, &buf, &rc))
|
|
return false;
|
|
|
|
if (rc > 0)
|
|
{
|
|
if (rc > (ssize_t)mem_info.size)
|
|
{
|
|
RARCH_WARN("SRAM is larger than implementation expects, "
|
|
"doing partial load (truncating %u %s %s %u).\n",
|
|
(unsigned)rc,
|
|
msg_hash_to_str(MSG_BYTES),
|
|
msg_hash_to_str(MSG_TO),
|
|
(unsigned)mem_info.size);
|
|
rc = mem_info.size;
|
|
}
|
|
memcpy(mem_info.data, buf, rc);
|
|
}
|
|
|
|
if (buf)
|
|
free(buf);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* content_save_ram_file:
|
|
* @path : path of RAM state that shall be written to.
|
|
* @type : type of memory
|
|
*
|
|
* Save a RAM state from memory to disk.
|
|
*
|
|
*/
|
|
bool content_save_ram_file(unsigned slot)
|
|
{
|
|
retro_ctx_memory_info_t mem_info;
|
|
ram_type_t ram;
|
|
global_t *global = global_get_ptr();
|
|
|
|
if (!global)
|
|
return false;
|
|
|
|
ram.type = global->savefiles->elems[slot].attr.i;
|
|
ram.path = global->savefiles->elems[slot].data;
|
|
|
|
mem_info.id = ram.type;
|
|
|
|
core_get_memory(&mem_info);
|
|
|
|
if (!mem_info.data || mem_info.size == 0)
|
|
return false;
|
|
|
|
RARCH_LOG("%s #%u %s \"%s\".\n",
|
|
msg_hash_to_str(MSG_SAVING_RAM_TYPE),
|
|
ram.type,
|
|
msg_hash_to_str(MSG_TO),
|
|
ram.path);
|
|
|
|
if (!filestream_write_file(ram.path, mem_info.data, mem_info.size))
|
|
{
|
|
RARCH_ERR("%s.\n",
|
|
msg_hash_to_str(MSG_FAILED_TO_SAVE_SRAM));
|
|
RARCH_WARN("Attempting to recover ...\n");
|
|
|
|
/* In case the file could not be written to,
|
|
* the fallback function 'dump_to_file_desperate'
|
|
* will be called. */
|
|
if (!dump_to_file_desperate(mem_info.data, mem_info.size, ram.type))
|
|
{
|
|
RARCH_WARN("Failed ... Cannot recover save file.\n");
|
|
}
|
|
return false;
|
|
}
|
|
|
|
RARCH_LOG("%s \"%s\".\n",
|
|
msg_hash_to_str(MSG_SAVED_SUCCESSFULLY_TO),
|
|
ram.path);
|
|
|
|
return true;
|
|
}
|