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RetroArch/cheevos.c

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2015-2016 - Andre Leiradella
*
* 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 <string.h>
#include <ctype.h>
#include <formats/jsonsax.h>
#include <streams/file_stream.h>
#include <rhash.h>
#include <libretro.h>
#include "cheevos.h"
#include "command.h"
#include "dynamic.h"
#include "system.h"
#include "network/net_http_special.h"
#include "tasks/tasks_internal.h"
#include "configuration.h"
#include "performance_counters.h"
#include "msg_hash.h"
#include "runloop.h"
#include "core.h"
#ifdef HAVE_MENU
#include "menu/menu_driver.h"
#include "menu/menu_entries.h"
#endif
#include "verbosity.h"
/* Define this macro to prevent cheevos from being deactivated. */
#undef CHEEVOS_DONT_DEACTIVATE
/* Define this macro to log URLs (will log the user token). */
#undef CHEEVOS_LOG_URLS
/* Define this macro to dump all cheevos' addresses. */
#undef CHEEVOS_DUMP_ADDRS
/* Define this macro to remove HTTP timeouts. */
#undef CHEEVOS_NO_TIMEOUT
#define JSON_KEY_GAMEID 0xb4960eecU
#define JSON_KEY_ACHIEVEMENTS 0x69749ae1U
#define JSON_KEY_ID 0x005973f2U
#define JSON_KEY_MEMADDR 0x1e76b53fU
#define JSON_KEY_TITLE 0x0e2a9a07U
#define JSON_KEY_DESCRIPTION 0xe61a1f69U
#define JSON_KEY_POINTS 0xca8fce22U
#define JSON_KEY_AUTHOR 0xa804edb8U
#define JSON_KEY_MODIFIED 0xdcea4fe6U
#define JSON_KEY_CREATED 0x3a84721dU
#define JSON_KEY_BADGENAME 0x887685d9U
#define JSON_KEY_CONSOLE_ID 0x071656e5U
#define JSON_KEY_TOKEN 0x0e2dbd26U
#define JSON_KEY_FLAGS 0x0d2e96b2U
enum
{
CHEEVOS_CONSOLE_MEGA_DRIVE = 1,
CHEEVOS_CONSOLE_NINTENDO_64 = 2,
CHEEVOS_CONSOLE_SUPER_NINTENDO = 3,
CHEEVOS_CONSOLE_GAMEBOY = 4,
CHEEVOS_CONSOLE_GAMEBOY_ADVANCE = 5,
CHEEVOS_CONSOLE_GAMEBOY_COLOR = 6,
CHEEVOS_CONSOLE_NINTENDO = 7,
CHEEVOS_CONSOLE_PC_ENGINE = 8,
CHEEVOS_CONSOLE_SEGA_CD = 9,
CHEEVOS_CONSOLE_SEGA_32X = 10,
CHEEVOS_CONSOLE_MASTER_SYSTEM = 11
};
enum
{
CHEEVOS_VAR_SIZE_BIT_0,
CHEEVOS_VAR_SIZE_BIT_1,
CHEEVOS_VAR_SIZE_BIT_2,
CHEEVOS_VAR_SIZE_BIT_3,
CHEEVOS_VAR_SIZE_BIT_4,
CHEEVOS_VAR_SIZE_BIT_5,
CHEEVOS_VAR_SIZE_BIT_6,
CHEEVOS_VAR_SIZE_BIT_7,
CHEEVOS_VAR_SIZE_NIBBLE_LOWER,
CHEEVOS_VAR_SIZE_NIBBLE_UPPER,
/* Byte, */
CHEEVOS_VAR_SIZE_EIGHT_BITS, /* =Byte, */
CHEEVOS_VAR_SIZE_SIXTEEN_BITS,
CHEEVOS_VAR_SIZE_THIRTYTWO_BITS,
CHEEVOS_VAR_SIZE_LAST
}; /* cheevos_var_t.size */
enum
{
/* compare to the value of a live address in RAM */
CHEEVOS_VAR_TYPE_ADDRESS,
/* a number. assume 32 bit */
CHEEVOS_VAR_TYPE_VALUE_COMP,
/* the value last known at this address. */
CHEEVOS_VAR_TYPE_DELTA_MEM,
/* a custom user-set variable */
CHEEVOS_VAR_TYPE_DYNAMIC_VAR,
CHEEVOS_VAR_TYPE_LAST
}; /* cheevos_var_t.type */
enum
{
CHEEVOS_COND_OP_EQUALS,
CHEEVOS_COND_OP_LESS_THAN,
CHEEVOS_COND_OP_LESS_THAN_OR_EQUAL,
CHEEVOS_COND_OP_GREATER_THAN,
CHEEVOS_COND_OP_GREATER_THAN_OR_EQUAL,
CHEEVOS_COND_OP_NOT_EQUAL_TO,
CHEEVOS_COND_OP_LAST
}; /* cheevos_cond_t.op */
enum
{
CHEEVOS_COND_TYPE_STANDARD,
CHEEVOS_COND_TYPE_PAUSE_IF,
CHEEVOS_COND_TYPE_RESET_IF,
CHEEVOS_COND_TYPE_LAST
}; /* cheevos_cond_t.type */
enum
{
CHEEVOS_DIRTY_TITLE = 1 << 0,
CHEEVOS_DIRTY_DESC = 1 << 1,
CHEEVOS_DIRTY_POINTS = 1 << 2,
CHEEVOS_DIRTY_AUTHOR = 1 << 3,
CHEEVOS_DIRTY_ID = 1 << 4,
CHEEVOS_DIRTY_BADGE = 1 << 5,
CHEEVOS_DIRTY_CONDITIONS = 1 << 6,
CHEEVOS_DIRTY_VOTES = 1 << 7,
CHEEVOS_DIRTY_DESCRIPTION = 1 << 8,
CHEEVOS_DIRTY_ALL = (1 << 9) - 1
};
typedef struct
{
unsigned type;
unsigned req_hits;
unsigned curr_hits;
cheevos_var_t source;
unsigned op;
cheevos_var_t target;
} cheevos_cond_t;
typedef struct
{
cheevos_cond_t *conds;
unsigned count;
const char* expression;
} cheevos_condset_t;
typedef struct
{
unsigned id;
const char *title;
const char *description;
const char *author;
const char *badge;
unsigned points;
unsigned dirty;
int active;
int modified;
cheevos_condset_t *condsets;
unsigned count;
} cheevo_t;
typedef struct
{
cheevo_t *cheevos;
unsigned count;
} cheevoset_t;
typedef struct
{
int is_element;
} cheevos_deactivate_t;
typedef struct
{
unsigned key_hash;
int is_key;
const char *value;
size_t length;
} cheevos_getvalueud_t;
typedef struct
{
int in_cheevos;
uint32_t field_hash;
unsigned core_count;
unsigned unofficial_count;
} cheevos_countud_t;
typedef struct
{
const char *string;
size_t length;
} cheevos_field_t;
typedef struct
{
int in_cheevos;
int is_console_id;
unsigned core_count;
unsigned unofficial_count;
cheevos_field_t *field;
cheevos_field_t id, memaddr, title, desc, points, author;
cheevos_field_t modified, created, badge, flags;
} cheevos_readud_t;
typedef struct
{
unsigned (*finder)(const struct retro_game_info *, retro_time_t);
const char *name;
const uint32_t *ext_hashes;
} cheevos_finder_t;
typedef struct
{
int loaded;
int console_id;
bool core_supports;
cheevoset_t core;
cheevoset_t unofficial;
char token[32];
retro_ctx_memory_info_t meminfo[4];
} cheevos_locals_t;
static cheevos_locals_t cheevos_locals =
{
0,
0,
true,
{NULL, 0},
{NULL, 0},
{0},
};
static int cheats_are_enabled = 0;
static int cheats_were_enabled = 0;
/*****************************************************************************
Supporting functions.
*****************************************************************************/
static uint32_t cheevos_djb2(const char* str, size_t length)
{
const unsigned char *aux = (const unsigned char*)str;
const unsigned char *end = aux + length;
uint32_t hash = 5381;
while (aux < end)
hash = (hash << 5) + hash + *aux++;
return hash;
}
static int cheevos_http_get(const char **result, size_t *size,
const char *url, retro_time_t *timeout)
{
const char *msg = NULL;
#ifdef CHEEVOS_NO_TIMEOUT
int ret = net_http_get(result, size, url, NULL);
#else
int ret = net_http_get(result, size, url, timeout);
#endif
switch (ret)
{
case NET_HTTP_GET_OK:
return ret;
case NET_HTTP_GET_MALFORMED_URL:
msg = "malformed url";
break;
case NET_HTTP_GET_CONNECT_ERROR:
msg = "connect error";
break;
case NET_HTTP_GET_TIMEOUT:
msg = "timeout";
break;
default:
msg = "?";
break;
}
RARCH_ERR("CHEEVOS error getting %s: %s\n", url, msg);
return ret;
}
static int cheevos_getvalue__json_key(void *userdata,
const char *name, size_t length)
{
cheevos_getvalueud_t* ud = (cheevos_getvalueud_t*)userdata;
ud->is_key = cheevos_djb2(name, length) == ud->key_hash;
return 0;
}
static int cheevos_getvalue__json_string(void *userdata,
const char *string, size_t length)
{
cheevos_getvalueud_t* ud = (cheevos_getvalueud_t*)userdata;
if (ud->is_key)
{
ud->value = string;
ud->length = length;
ud->is_key = 0;
}
return 0;
}
static int cheevos_getvalue__json_boolean(void *userdata, int istrue)
{
cheevos_getvalueud_t* ud = (cheevos_getvalueud_t*)userdata;
if ( ud->is_key )
{
ud->value = istrue ? "true" : "false";
ud->length = istrue ? 4 : 5;
ud->is_key = 0;
}
return 0;
}
static int cheevos_getvalue__json_null(void *userdata)
{
cheevos_getvalueud_t* ud = (cheevos_getvalueud_t*)userdata;
if ( ud->is_key )
{
ud->value = "null";
ud->length = 4;
ud->is_key = 0;
}
return 0;
}
static int cheevos_get_value(const char *json, unsigned key_hash,
char *value, size_t length)
{
static const jsonsax_handlers_t handlers =
{
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
cheevos_getvalue__json_key,
NULL,
cheevos_getvalue__json_string,
cheevos_getvalue__json_string, /* number */
cheevos_getvalue__json_boolean,
cheevos_getvalue__json_null
};
cheevos_getvalueud_t ud;
ud.key_hash = key_hash;
ud.is_key = 0;
ud.value = NULL;
ud.length = 0;
*value = 0;
if ((jsonsax_parse(json, &handlers, (void*)&ud) == JSONSAX_OK)
&& ud.value && ud.length < length)
{
strncpy(value, ud.value, length);
value[ud.length] = 0;
return 0;
}
return -1;
}
/*****************************************************************************
Count number of achievements in a JSON file.
*****************************************************************************/
static int cheevos_count__json_end_array(void *userdata)
{
cheevos_countud_t* ud = (cheevos_countud_t*)userdata;
ud->in_cheevos = 0;
return 0;
}
static int cheevos_count__json_key(void *userdata,
const char *name, size_t length)
{
cheevos_countud_t* ud = (cheevos_countud_t*)userdata;
ud->field_hash = cheevos_djb2(name, length);
if (ud->field_hash == JSON_KEY_ACHIEVEMENTS)
ud->in_cheevos = 1;
return 0;
}
static int cheevos_count__json_number(void *userdata,
const char *number, size_t length)
{
long flags;
cheevos_countud_t* ud = (cheevos_countud_t*)userdata;
if (ud->in_cheevos && ud->field_hash == JSON_KEY_FLAGS)
{
flags = strtol(number, NULL, 10);
switch (flags)
{
case 3: /* Core achievements */
ud->core_count++;
break;
case 5: /* Unofficial achievements */
ud->unofficial_count++;
break;
default:
break;
}
}
return 0;
}
static int cheevos_count_cheevos(const char *json,
unsigned *core_count, unsigned *unofficial_count)
{
static const jsonsax_handlers_t handlers =
{
NULL,
NULL,
NULL,
NULL,
NULL,
cheevos_count__json_end_array,
cheevos_count__json_key,
NULL,
NULL,
cheevos_count__json_number,
NULL,
NULL
};
int res;
cheevos_countud_t ud;
ud.in_cheevos = 0;
ud.core_count = 0;
ud.unofficial_count = 0;
res = jsonsax_parse(json, &handlers, (void*)&ud);
*core_count = ud.core_count;
*unofficial_count = ud.unofficial_count;
return res;
}
/*****************************************************************************
Parse the MemAddr field.
*****************************************************************************/
static unsigned cheevos_prefix_to_comp_size(char prefix)
{
/* Careful not to use ABCDEF here, this denotes part of an actual variable! */
switch( toupper( prefix ) )
{
case 'M':
return CHEEVOS_VAR_SIZE_BIT_0;
case 'N':
return CHEEVOS_VAR_SIZE_BIT_1;
case 'O':
return CHEEVOS_VAR_SIZE_BIT_2;
case 'P':
return CHEEVOS_VAR_SIZE_BIT_3;
case 'Q':
return CHEEVOS_VAR_SIZE_BIT_4;
case 'R':
return CHEEVOS_VAR_SIZE_BIT_5;
case 'S':
return CHEEVOS_VAR_SIZE_BIT_6;
case 'T':
return CHEEVOS_VAR_SIZE_BIT_7;
case 'L':
return CHEEVOS_VAR_SIZE_NIBBLE_LOWER;
case 'U':
return CHEEVOS_VAR_SIZE_NIBBLE_UPPER;
case 'H':
return CHEEVOS_VAR_SIZE_EIGHT_BITS;
case 'X':
return CHEEVOS_VAR_SIZE_THIRTYTWO_BITS;
default:
case ' ':
break;
}
return CHEEVOS_VAR_SIZE_SIXTEEN_BITS;
}
static unsigned cheevos_read_hits(const char **memaddr)
{
char *end = NULL;
const char *str = *memaddr;
unsigned num_hits = 0;
if (*str == '(' || *str == '.')
{
num_hits = strtol(str + 1, &end, 10);
str = end + 1;
}
*memaddr = str;
return num_hits;
}
static unsigned cheevos_parse_operator(const char **memaddr)
{
unsigned char op;
const char *str = *memaddr;
if (*str == '=' && str[1] == '=')
{
op = CHEEVOS_COND_OP_EQUALS;
str += 2;
}
else if (*str == '=')
{
op = CHEEVOS_COND_OP_EQUALS;
str++;
}
else if (*str == '!' && str[1] == '=')
{
op = CHEEVOS_COND_OP_NOT_EQUAL_TO;
str += 2;
}
else if (*str == '<' && str[1] == '=')
{
op = CHEEVOS_COND_OP_LESS_THAN_OR_EQUAL;
str += 2;
}
else if (*str == '<')
{
op = CHEEVOS_COND_OP_LESS_THAN;
str++;
}
else if (*str == '>' && str[1] == '=')
{
op = CHEEVOS_COND_OP_GREATER_THAN_OR_EQUAL;
str += 2;
}
else if (*str == '>')
{
op = CHEEVOS_COND_OP_GREATER_THAN;
str++;
}
else
{
RARCH_ERR("CHEEVOS Unknown operator %c\n", *str);
op = CHEEVOS_COND_OP_EQUALS;
}
*memaddr = str;
return op;
}
void cheevos_parse_guest_addr(cheevos_var_t *var, unsigned value)
{
rarch_system_info_t *system;
runloop_ctl(RUNLOOP_CTL_SYSTEM_INFO_GET, &system);
var->bank_id = -1;
var->value = value;
if (system->mmaps.num_descriptors != 0)
{
const struct retro_memory_descriptor *desc = NULL;
const struct retro_memory_descriptor *end = NULL;
switch (cheevos_locals.console_id)
{
case CHEEVOS_CONSOLE_GAMEBOY_ADVANCE:
/* Patch the address to correctly map it to the mmaps */
if (var->value < 0x8000) /* Internal RAM */
var->value += 0x3000000;
else /* Work RAM */
var->value += 0x2000000 - 0x8000;
break;
case CHEEVOS_CONSOLE_PC_ENGINE:
var->value += 0x1f0000;
break;
default:
break;
}
desc = system->mmaps.descriptors;
end = desc + system->mmaps.num_descriptors;
for (; desc < end; desc++)
{
if ((var->value & desc->select) == desc->start)
{
var->bank_id = desc - system->mmaps.descriptors;
var->value = var->value - desc->start + desc->offset;
break;
}
}
}
else
{
unsigned i;
for (i = 0; i < ARRAY_SIZE(cheevos_locals.meminfo); i++)
{
if (var->value < cheevos_locals.meminfo[i].size)
{
var->bank_id = i;
break;
}
var->value -= cheevos_locals.meminfo[i].size;
}
}
}
static void cheevos_parse_var(cheevos_var_t *var, const char **memaddr)
{
char *end = NULL;
const char *str = *memaddr;
unsigned base = 16;
if (toupper(*str) == 'D' && str[1] == '0' && toupper(str[2]) == 'X')
{
/* d0x + 4 hex digits */
str += 3;
var->type = CHEEVOS_VAR_TYPE_DELTA_MEM;
}
else if (*str == '0' && toupper(str[1]) == 'X')
{
/* 0x + 4 hex digits */
str += 2;
var->type = CHEEVOS_VAR_TYPE_ADDRESS;
}
else
{
var->type = CHEEVOS_VAR_TYPE_VALUE_COMP;
if (toupper(*str) == 'H')
str++;
else
base = 10;
}
if (var->type != CHEEVOS_VAR_TYPE_VALUE_COMP)
{
var->size = cheevos_prefix_to_comp_size(*str);
if (var->size != CHEEVOS_VAR_SIZE_SIXTEEN_BITS)
str++;
}
var->value = strtol(str, &end, base);
*memaddr = end;
switch (var->type)
{
case CHEEVOS_VAR_TYPE_ADDRESS:
case CHEEVOS_VAR_TYPE_DELTA_MEM:
cheevos_parse_guest_addr(var, var->value);
#ifdef CHEEVOS_DUMP_ADDRS
RARCH_LOG("CHEEVOS var %03d:%08X\n", var->bank_id + 1, var->value);
#endif
break;
default:
break;
}
}
static void cheevos_parse_cond(cheevos_cond_t *cond, const char **memaddr)
{
const char* str = *memaddr;
if (*str == 'R' && str[1] == ':')
{
cond->type = CHEEVOS_COND_TYPE_RESET_IF;
str += 2;
}
else if (*str == 'P' && str[1] == ':')
{
cond->type = CHEEVOS_COND_TYPE_PAUSE_IF;
str += 2;
}
else
cond->type = CHEEVOS_COND_TYPE_STANDARD;
cheevos_parse_var(&cond->source, &str);
cond->op = cheevos_parse_operator(&str);
cheevos_parse_var(&cond->target, &str);
cond->curr_hits = 0;
cond->req_hits = cheevos_read_hits(&str);
*memaddr = str;
}
static unsigned cheevos_count_cond_sets(const char *memaddr)
{
cheevos_cond_t cond;
unsigned count = 0;
do
{
do
{
/* Skip any characters up until the start of the achievement condition */
while ( *memaddr == ' '
|| *memaddr == '_'
|| *memaddr == '|'
|| *memaddr == 'S')
memaddr++;
cheevos_parse_cond(&cond, &memaddr);
}
while ( *memaddr == '_'
|| *memaddr == 'R'
|| *memaddr == 'P'); /* AND, ResetIf, PauseIf */
count++;
}
while (*memaddr == 'S'); /* Repeat for all subconditions if they exist */
return count;
}
static unsigned cheevos_count_conds_in_set(const char *memaddr, unsigned set)
{
cheevos_cond_t cond;
unsigned index = 0;
unsigned count = 0;
do
{
do
{
/* Skip any characters up until the start of the achievement condition */
while ( *memaddr == ' '
|| *memaddr == '_'
|| *memaddr == '|'
|| *memaddr == 'S')
memaddr++;
cheevos_parse_cond(&cond, &memaddr);
if (index == set)
count++;
}
while (*memaddr == '_' || *memaddr == 'R' || *memaddr == 'P'); /* AND, ResetIf, PauseIf */
}
while (*memaddr == 'S'); /* Repeat for all subconditions if they exist */
return count;
}
static void cheevos_parse_memaddr(cheevos_cond_t *cond, const char *memaddr)
{
do
{
do
{
/* Skip any characters up until the start of the achievement condition */
while ( *memaddr == ' '
|| *memaddr == '_'
|| *memaddr == '|'
|| *memaddr == 'S')
memaddr++;
cheevos_parse_cond(cond++, &memaddr);
}
while (*memaddr == '_' || *memaddr == 'R' || *memaddr == 'P'); /* AND, ResetIf, PauseIf */
}
while (*memaddr == 'S'); /* Repeat for all subconditions if they exist */
}
/*****************************************************************************
Load achievements from a JSON string.
*****************************************************************************/
static INLINE const char *cheevos_dupstr(const cheevos_field_t *field)
{
char *string = (char*)malloc(field->length + 1);
if (!string)
return NULL;
memcpy ((void*)string, (void*)field->string, field->length);
string[field->length] = 0;
return string;
}
static int cheevos_new_cheevo(cheevos_readud_t *ud)
{
unsigned set;
const cheevos_condset_t *end = NULL;
cheevos_condset_t *condset = NULL;
cheevo_t *cheevo = NULL;
int flags = strtol(ud->flags.string, NULL, 10);
if (flags == 3)
cheevo = cheevos_locals.core.cheevos + ud->core_count++;
else
cheevo = cheevos_locals.unofficial.cheevos + ud->unofficial_count++;
cheevo->id = strtol(ud->id.string, NULL, 10);
cheevo->title = cheevos_dupstr(&ud->title);
cheevo->description = cheevos_dupstr(&ud->desc);
cheevo->author = cheevos_dupstr(&ud->author);
cheevo->badge = cheevos_dupstr(&ud->badge);
cheevo->points = strtol(ud->points.string, NULL, 10);
cheevo->dirty = 0;
cheevo->active = 1; /* flags == 3; */
cheevo->modified = 0;
if (!cheevo->title || !cheevo->description || !cheevo->author || !cheevo->badge)
{
free((void*)cheevo->title);
free((void*)cheevo->description);
free((void*)cheevo->author);
free((void*)cheevo->badge);
return -1;
}
cheevo->count = cheevos_count_cond_sets(ud->memaddr.string);
if (cheevo->count)
{
cheevo->condsets = (cheevos_condset_t*)
malloc(cheevo->count * sizeof(cheevos_condset_t));
if (!cheevo->condsets)
return -1;
memset((void*)cheevo->condsets, 0,
cheevo->count * sizeof(cheevos_condset_t));
end = cheevo->condsets + cheevo->count;
set = 0;
for (condset = cheevo->condsets; condset < end; condset++)
{
condset->count =
cheevos_count_conds_in_set(ud->memaddr.string, set++);
if (condset->count)
{
condset->conds = (cheevos_cond_t*)
malloc(condset->count * sizeof(cheevos_cond_t));
if (!condset->conds)
return -1;
memset((void*)condset->conds, 0,
condset->count * sizeof(cheevos_cond_t));
condset->expression = cheevos_dupstr(&ud->memaddr);
cheevos_parse_memaddr(condset->conds, ud->memaddr.string);
}
else
condset->conds = NULL;
}
}
return 0;
}
static int cheevos_read__json_key( void *userdata,
const char *name, size_t length)
{
cheevos_readud_t *ud = (cheevos_readud_t*)userdata;
uint32_t hash = cheevos_djb2(name, length);
ud->field = NULL;
if (hash == JSON_KEY_ACHIEVEMENTS)
ud->in_cheevos = 1;
else if (hash == JSON_KEY_CONSOLE_ID)
ud->is_console_id = 1;
else if (ud->in_cheevos)
{
switch ( hash )
{
case JSON_KEY_ID:
ud->field = &ud->id;
break;
case JSON_KEY_MEMADDR:
ud->field = &ud->memaddr;
break;
case JSON_KEY_TITLE:
ud->field = &ud->title;
break;
case JSON_KEY_DESCRIPTION:
ud->field = &ud->desc;
break;
case JSON_KEY_POINTS:
ud->field = &ud->points;
break;
case JSON_KEY_AUTHOR:
ud->field = &ud->author;
break;
case JSON_KEY_MODIFIED:
ud->field = &ud->modified;
break;
case JSON_KEY_CREATED:
ud->field = &ud->created;
break;
case JSON_KEY_BADGENAME:
ud->field = &ud->badge;
break;
case JSON_KEY_FLAGS:
ud->field = &ud->flags;
break;
}
}
return 0;
}
static int cheevos_read__json_string(void *userdata,
const char *string, size_t length)
{
cheevos_readud_t *ud = (cheevos_readud_t*)userdata;
if (ud->field)
{
ud->field->string = string;
ud->field->length = length;
}
return 0;
}
static int cheevos_read__json_number(void *userdata,
const char *number, size_t length)
{
cheevos_readud_t *ud = (cheevos_readud_t*)userdata;
if (ud->field)
{
ud->field->string = number;
ud->field->length = length;
}
else if (ud->is_console_id)
{
cheevos_locals.console_id = strtol(number, NULL, 10);
ud->is_console_id = 0;
}
return 0;
}
static int cheevos_read__json_end_object(void *userdata)
{
cheevos_readud_t *ud = (cheevos_readud_t*)userdata;
if (ud->in_cheevos)
return cheevos_new_cheevo(ud);
return 0;
}
static int cheevos_read__json_end_array(void *userdata)
{
cheevos_readud_t *ud = (cheevos_readud_t*)userdata;
ud->in_cheevos = 0;
return 0;
}
static int cheevos_parse(const char *json)
{
static const jsonsax_handlers_t handlers =
{
NULL,
NULL,
NULL,
cheevos_read__json_end_object,
NULL,
cheevos_read__json_end_array,
cheevos_read__json_key,
NULL,
cheevos_read__json_string,
cheevos_read__json_number,
NULL,
NULL
};
unsigned core_count, unofficial_count;
cheevos_readud_t ud;
settings_t *settings = config_get_ptr();
/* Just return OK if cheevos are disabled. */
if (!settings->cheevos.enable)
return 0;
/* Count the number of achievements in the JSON file. */
if (cheevos_count_cheevos(json, &core_count, &unofficial_count) != JSONSAX_OK)
return -1;
/* Allocate the achievements. */
cheevos_locals.core.cheevos = (cheevo_t*)
malloc(core_count * sizeof(cheevo_t));
cheevos_locals.core.count = core_count;
cheevos_locals.unofficial.cheevos = (cheevo_t*)
malloc(unofficial_count * sizeof(cheevo_t));
cheevos_locals.unofficial.count = unofficial_count;
if (!cheevos_locals.core.cheevos || !cheevos_locals.unofficial.cheevos)
{
free((void*)cheevos_locals.core.cheevos);
free((void*)cheevos_locals.unofficial.cheevos);
cheevos_locals.core.count = cheevos_locals.unofficial.count = 0;
return -1;
}
memset((void*)cheevos_locals.core.cheevos,
0, core_count * sizeof(cheevo_t));
memset((void*)cheevos_locals.unofficial.cheevos,
0, unofficial_count * sizeof(cheevo_t));
/* Load the achievements. */
ud.in_cheevos = 0;
ud.is_console_id = 0;
ud.field = NULL;
ud.core_count = 0;
ud.unofficial_count = 0;
if (jsonsax_parse(json, &handlers, (void*)&ud) != JSONSAX_OK)
{
cheevos_unload();
return -1;
}
return 0;
}
/*****************************************************************************
Test all the achievements (call once per frame).
*****************************************************************************/
uint8_t *cheevos_get_memory(const cheevos_var_t *var)
{
if (var->bank_id >= 0)
{
rarch_system_info_t *system;
runloop_ctl(RUNLOOP_CTL_SYSTEM_INFO_GET, &system);
if (system->mmaps.num_descriptors != 0)
return (uint8_t *)system->mmaps.descriptors[var->bank_id].ptr + var->value;
return (uint8_t *)cheevos_locals.meminfo[var->bank_id].data + var->value;
}
return NULL;
}
static unsigned cheevos_get_var_value(cheevos_var_t *var)
{
unsigned previous = var->previous;
unsigned live_val = 0;
const uint8_t *memory = NULL;
if (var->type == CHEEVOS_VAR_TYPE_VALUE_COMP)
return var->value;
if ( var->type == CHEEVOS_VAR_TYPE_ADDRESS
|| var->type == CHEEVOS_VAR_TYPE_DELTA_MEM)
{
/* TODO Check with Scott if the bank id is needed */
memory = cheevos_get_memory(var);
if (memory)
{
live_val = memory[0];
if (var->size > CHEEVOS_VAR_SIZE_BIT_0
&& var->size <= CHEEVOS_VAR_SIZE_BIT_7)
live_val = (live_val &
(1 << (var->size - CHEEVOS_VAR_SIZE_BIT_0))) != 0;
else
{
switch (var->size)
{
case CHEEVOS_VAR_SIZE_NIBBLE_LOWER:
live_val &= 0x0f;
break;
case CHEEVOS_VAR_SIZE_NIBBLE_UPPER:
live_val = (live_val >> 4) & 0x0f;
break;
case CHEEVOS_VAR_SIZE_EIGHT_BITS:
break;
case CHEEVOS_VAR_SIZE_SIXTEEN_BITS:
live_val |= memory[1] << 8;
break;
case CHEEVOS_VAR_SIZE_THIRTYTWO_BITS:
live_val |= memory[1] << 8;
live_val |= memory[2] << 16;
live_val |= memory[3] << 24;
break;
}
}
}
else
live_val = 0;
if (var->type == CHEEVOS_VAR_TYPE_DELTA_MEM)
{
var->previous = live_val;
return previous;
}
return live_val;
}
/* We shouldn't get here... */
return 0;
}
static int cheevos_test_condition(cheevos_cond_t *cond)
{
unsigned sval = cheevos_get_var_value(&cond->source);
unsigned tval = cheevos_get_var_value(&cond->target);
switch (cond->op)
{
case CHEEVOS_COND_OP_EQUALS:
return sval == tval;
case CHEEVOS_COND_OP_LESS_THAN:
return sval < tval;
case CHEEVOS_COND_OP_LESS_THAN_OR_EQUAL:
return sval <= tval;
case CHEEVOS_COND_OP_GREATER_THAN:
return sval > tval;
case CHEEVOS_COND_OP_GREATER_THAN_OR_EQUAL:
return sval >= tval;
case CHEEVOS_COND_OP_NOT_EQUAL_TO:
return sval != tval;
default:
break;
}
return 1;
}
static int cheevos_test_cond_set(const cheevos_condset_t *condset,
int *dirty_conds, int *reset_conds, int match_any)
{
int cond_valid = 0;
int set_valid = 1;
const cheevos_cond_t *end = condset->conds + condset->count;
cheevos_cond_t *cond = NULL;
/* Now, read all Pause conditions, and if any are true,
* do not process further (retain old state). */
for (cond = condset->conds; cond < end; cond++)
{
if (cond->type == CHEEVOS_COND_TYPE_PAUSE_IF)
{
/* Reset by default, set to 1 if hit! */
cond->curr_hits = 0;
if (cheevos_test_condition(cond))
{
cond->curr_hits = 1;
*dirty_conds = 1;
/* Early out: this achievement is paused,
* do not process any further! */
return 0;
}
}
}
/* Read all standard conditions, and process as normal: */
for (cond = condset->conds; cond < end; cond++)
{
if ( cond->type == CHEEVOS_COND_TYPE_PAUSE_IF
|| cond->type == CHEEVOS_COND_TYPE_RESET_IF)
continue;
if (cond->req_hits != 0 && cond->curr_hits >= cond->req_hits)
continue;
cond_valid = cheevos_test_condition(cond);
if (cond_valid)
{
cond->curr_hits++;
*dirty_conds = 1;
/* Process this logic, if this condition is true: */
if (cond->req_hits == 0)
; /* Not a hit-based requirement: ignore any additional logic! */
else if (cond->curr_hits < cond->req_hits)
cond_valid = 0; /* Not entirely valid yet! */
if (match_any)
break;
}
/* Sequential or non-sequential? */
set_valid &= cond_valid;
}
/* Now, ONLY read reset conditions! */
for (cond = condset->conds; cond < end; cond++)
{
if (cond->type == CHEEVOS_COND_TYPE_RESET_IF)
{
cond_valid = cheevos_test_condition(cond);
if (cond_valid)
{
*reset_conds = 1; /* Resets all hits found so far */
set_valid = 0; /* Cannot be valid if we've hit a reset condition. */
break; /* No point processing any further reset conditions. */
}
}
}
return set_valid;
}
static int cheevos_reset_cond_set(cheevos_condset_t *condset, int deltas)
{
int dirty = 0;
const cheevos_cond_t *end = condset->conds + condset->count;
cheevos_cond_t *cond = NULL;
if (deltas)
{
for (cond = condset->conds; cond < end; cond++)
{
dirty |= cond->curr_hits != 0;
cond->curr_hits = 0;
cond->source.previous = cond->source.value;
cond->target.previous = cond->target.value;
}
}
else
{
for (cond = condset->conds; cond < end; cond++)
{
dirty |= cond->curr_hits != 0;
cond->curr_hits = 0;
}
}
return dirty;
}
static int cheevos_test_cheevo(cheevo_t *cheevo)
{
int dirty;
int dirty_conds = 0;
int reset_conds = 0;
int ret_val = 0;
int ret_val_sub_cond = cheevo->count == 1;
cheevos_condset_t *condset = cheevo->condsets;
const cheevos_condset_t *end = condset + cheevo->count;
if (condset < end)
{
ret_val = cheevos_test_cond_set(condset, &dirty_conds, &reset_conds, 0);
condset++;
}
while (condset < end)
{
int res = cheevos_test_cond_set(condset, &dirty_conds, &reset_conds, 0);
ret_val_sub_cond |= res;
condset++;
}
if (dirty_conds)
cheevo->dirty |= CHEEVOS_DIRTY_CONDITIONS;
if (reset_conds)
{
dirty = 0;
for (condset = cheevo->condsets; condset < end; condset++)
dirty |= cheevos_reset_cond_set(condset, 0);
if (dirty)
cheevo->dirty |= CHEEVOS_DIRTY_CONDITIONS;
}
return ret_val && ret_val_sub_cond;
}
static void cheevos_url_encode(const char *str, char *encoded, size_t len)
{
while (*str)
{
if ( isalnum(*str) || *str == '-'
|| *str == '_' || *str == '.'
|| *str == '~')
{
if (len >= 2)
{
*encoded++ = *str++;
len--;
}
else
break;
}
else
{
if (len >= 4)
{
sprintf(encoded, "%%%02x", (uint8_t)*str);
encoded += 3;
str++;
len -= 3;
}
else
break;
}
}
*encoded = 0;
}
static int cheevos_login(retro_time_t *timeout)
{
int res;
char urle_user[64] = {0};
char urle_pwd[64] = {0};
char request[256] = {0};
const char *json = NULL;
const char *username = NULL;
const char *password = NULL;
settings_t *settings = config_get_ptr();
if (cheevos_locals.token[0])
return 0;
username = settings->cheevos.username;
password = settings->cheevos.password;
if (!username || !*username || !password || !*password)
{
runloop_msg_queue_push("Missing Retro Achievements account information", 0, 5 * 60, false);
runloop_msg_queue_push("Please fill in your account information in Settings", 0, 5 * 60, false);
RARCH_ERR("CHEEVOS username and/or password not informed\n");
return -1;
}
cheevos_url_encode(username, urle_user, sizeof(urle_user));
cheevos_url_encode(password, urle_pwd, sizeof(urle_pwd));
snprintf(
request, sizeof(request),
"http://retroachievements.org/dorequest.php?r=login&u=%s&p=%s",
urle_user, urle_pwd
);
request[sizeof(request) - 1] = 0;
#ifdef CHEEVOS_LOG_URLS
RARCH_LOG("CHEEVOS url to login: %s\n", request);
#endif
if (!cheevos_http_get(&json, NULL, request, timeout))
{
res = cheevos_get_value(json, JSON_KEY_TOKEN,
cheevos_locals.token, sizeof(cheevos_locals.token));
free((void*)json);
if (!res)
return 0;
}
runloop_msg_queue_push("Retro Achievements login error",
0, 5 * 60, false);
runloop_msg_queue_push(
"Please make sure your account information is correct",
0, 5 * 60, false);
RARCH_ERR("CHEEVOS error getting user token.\n");
return -1;
}
static void cheevos_make_unlock_url(const cheevo_t *cheevo, char* url, size_t url_size)
{
settings_t *settings = config_get_ptr();
snprintf(
url, url_size,
"http://retroachievements.org/dorequest.php?r=awardachievement&u=%s&t=%s&a=%u&h=%d",
settings->cheevos.username, cheevos_locals.token, cheevo->id, settings->cheevos.hardcore_mode_enable
);
url[url_size - 1] = 0;
#ifdef CHEEVOS_LOG_URLS
RARCH_LOG("CHEEVOS url to award the cheevo: %s\n", url);
#endif
}
static void cheevos_unlocked(void *task_data, void *user_data, const char *error)
{
cheevo_t *cheevo = (cheevo_t *)user_data;
if (error == NULL)
{
RARCH_LOG("CHEEVOS awarded achievement %u\n", cheevo->id);
}
else
{
char url[256] = {0};
RARCH_ERR("CHEEVOS error awarding achievement %u, retrying\n", cheevo->id);
cheevos_make_unlock_url(cheevo, url, sizeof(url));
task_push_http_transfer(url, true, NULL, cheevos_unlocked, cheevo);
}
}
static void cheevos_test_cheevo_set(const cheevoset_t *set)
{
cheevo_t *cheevo = NULL;
const cheevo_t *end = set->cheevos + set->count;
for (cheevo = set->cheevos; cheevo < end; cheevo++)
{
if (cheevo->active && cheevos_test_cheevo(cheevo))
{
char url[256] = {0};
cheevo->active = 0;
RARCH_LOG("CHEEVOS awarding cheevo %u: %s (%s)\n",
cheevo->id, cheevo->title, cheevo->description);
runloop_msg_queue_push(cheevo->title, 0, 3 * 60, false);
runloop_msg_queue_push(cheevo->description, 0, 5 * 60, false);
cheevos_make_unlock_url(cheevo, url, sizeof(url));
task_push_http_transfer(url, true, NULL, cheevos_unlocked, cheevo);
}
}
}
/*****************************************************************************
Free the loaded achievements.
*****************************************************************************/
static void cheevos_free_condset(const cheevos_condset_t *set)
{
free((void*)set->conds);
}
static void cheevos_free_cheevo(const cheevo_t *cheevo)
{
free((void*)cheevo->title);
free((void*)cheevo->description);
free((void*)cheevo->author);
free((void*)cheevo->badge);
cheevos_free_condset(cheevo->condsets);
}
static void cheevos_free_cheevo_set(const cheevoset_t *set)
{
const cheevo_t *cheevo = set->cheevos;
const cheevo_t *end = cheevo + set->count;
while (cheevo < end)
cheevos_free_cheevo(cheevo++);
free((void*)set->cheevos);
}
/*****************************************************************************
Load achievements from retroachievements.org.
*****************************************************************************/
static int cheevos_get_by_game_id(const char **json,
unsigned game_id, retro_time_t *timeout)
{
settings_t *settings = config_get_ptr();
/* Just return OK if cheevos are disabled. */
if (!settings->cheevos.enable)
return 0;
if (!cheevos_login(timeout))
{
char request[256] = {0};
snprintf(
request, sizeof(request),
"http://retroachievements.org/dorequest.php?r=patch&u=%s&g=%u&f=3&l=1&t=%s",
settings->cheevos.username, game_id, cheevos_locals.token
);
request[sizeof(request) - 1] = 0;
#ifdef CHEEVOS_LOG_URLS
RARCH_LOG("CHEEVOS url to get the list of cheevos: %s\n", request);
#endif
if (!cheevos_http_get(json, NULL, request, timeout))
{
RARCH_LOG("CHEEVOS got achievements for game id %u\n", game_id);
return 0;
}
RARCH_ERR("CHEEVOS error getting achievements for game id %u\n", game_id);
}
return -1;
}
static unsigned cheevos_get_game_id(unsigned char *hash, retro_time_t *timeout)
{
int res;
char request[256] = {0};
char game_id[16] = {0};
const char* json = NULL;
RARCH_LOG(
"CHEEVOS getting game id for hash %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x\n",
hash[ 0], hash[ 1], hash[ 2], hash[ 3],
hash[ 4], hash[ 5], hash[ 6], hash[ 7],
hash[ 8], hash[ 9], hash[10], hash[11],
hash[12], hash[13], hash[14], hash[15]
);
snprintf(
request, sizeof(request),
"http://retroachievements.org/dorequest.php?r=gameid&m=%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
hash[ 0], hash[ 1], hash[ 2], hash[ 3],
hash[ 4], hash[ 5], hash[ 6], hash[ 7],
hash[ 8], hash[ 9], hash[10], hash[11],
hash[12], hash[13], hash[14], hash[15]
);
request[sizeof(request) - 1] = 0;
#ifdef CHEEVOS_LOG_URLS
RARCH_LOG("CHEEVOS url to get the game's id: %s\n", request);
#endif
if (!cheevos_http_get(&json, NULL, request, timeout))
{
res = cheevos_get_value(json, JSON_KEY_GAMEID,
game_id, sizeof(game_id));
free((void*)json);
if (!res)
{
RARCH_LOG("CHEEVOS got game id %s\n", game_id);
return strtoul(game_id, NULL, 10);
}
}
RARCH_ERR("CHEEVOS error getting game_id\n");
return 0;
}
static void cheevos_make_playing_url(unsigned game_id, char* url, size_t url_size)
{
settings_t *settings = config_get_ptr();
snprintf(
url, url_size,
"http://retroachievements.org/dorequest.php?r=postactivity&u=%s&t=%s&a=3&m=%u",
settings->cheevos.username, cheevos_locals.token, game_id
);
url[url_size - 1] = 0;
#ifdef CHEEVOS_LOG_URLS
RARCH_LOG("CHEEVOS url to post the 'playing' activity: %s\n", url);
#endif
}
static void cheevos_playing(void *task_data, void *user_data, const char *error)
{
unsigned game_id = (unsigned)(uintptr_t)user_data;
if (error == NULL)
{
RARCH_LOG("CHEEVOS posted playing game %u activity\n", game_id);
}
else
{
char url[256] = {0};
RARCH_ERR("CHEEVOS error posting playing game %u activity, will retry\n", game_id);
cheevos_make_playing_url(game_id, url, sizeof(url));
task_push_http_transfer(url, true, NULL, cheevos_playing, (void*)(uintptr_t)game_id);
}
}
#ifndef CHEEVOS_DONT_DEACTIVATE
static int cheevos_deactivate__json_index(void *userdata, unsigned int index)
{
cheevos_deactivate_t *ud = (cheevos_deactivate_t*)userdata;
ud->is_element = 1;
return 0;
}
static int cheevos_deactivate__json_number(void *userdata,
const char *number, size_t length)
{
long id;
int found;
cheevo_t* cheevo = NULL;
const cheevo_t* end = NULL;
cheevos_deactivate_t *ud = (cheevos_deactivate_t*)userdata;
if (ud->is_element)
{
ud->is_element = 0;
id = strtol(number, NULL, 10);
found = 0;
cheevo = cheevos_locals.core.cheevos;
end = cheevo + cheevos_locals.core.count;
for (; cheevo < end; cheevo++)
{
if (cheevo->id == (unsigned)id)
{
cheevo->active = 0;
found = 1;
break;
}
}
if (!found)
{
cheevo = cheevos_locals.unofficial.cheevos;
end = cheevo + cheevos_locals.unofficial.count;
for (; cheevo < end; cheevo++)
{
if (cheevo->id == (unsigned)id)
{
cheevo->active = 0;
break;
}
}
}
if (found)
RARCH_LOG("CHEEVOS deactivated unlocked cheevo %s\n", cheevo->title);
else
RARCH_ERR("CHEEVOS unknown cheevo to deactivate: %u\n", id);
}
return 0;
}
#endif
static int cheevos_deactivate_unlocks(unsigned game_id, retro_time_t *timeout)
{
/* Only call this function after the cheevos have been loaded. */
#ifndef CHEEVOS_DONT_DEACTIVATE
static const jsonsax_handlers_t handlers =
{
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
cheevos_deactivate__json_index,
NULL,
cheevos_deactivate__json_number,
NULL,
NULL
};
int res;
cheevos_deactivate_t ud;
const char* json = NULL;
if (!cheevos_login(timeout))
{
char request[256] = {0};
settings_t *settings = config_get_ptr();
snprintf(
request, sizeof(request),
"http://retroachievements.org/dorequest.php?r=unlocks&u=%s&t=%s&g=%u&h=0",
settings->cheevos.username, cheevos_locals.token, game_id
);
request[sizeof(request) - 1] = 0;
#ifdef CHEEVOS_LOG_URLS
RARCH_LOG("CHEEVOS url to get the list of unlocked cheevos: %s\n", request);
#endif
if (!cheevos_http_get(&json, NULL, request, timeout))
{
ud.is_element = 0;
res = jsonsax_parse(json, &handlers, (void*)&ud);
free((void*)json);
if (res == JSONSAX_OK)
{
RARCH_LOG("CHEEVOS deactivated unlocked achievements\n");
return 0;
}
}
}
RARCH_ERR("CHEEVOS error deactivating unlocked achievements\n");
return -1;
#else
RARCH_LOG("CHEEVOS cheevo deactivation is disabled\n");
return 0;
#endif
}
#define CHEEVOS_SIX_MB (6 * 1024 * 1024)
#define CHEEVOS_EIGHT_MB (8 * 1024 * 1024)
static INLINE unsigned cheevos_next_power_of_2(unsigned n)
{
n--;
n |= n >> 1;
n |= n >> 2;
n |= n >> 4;
n |= n >> 8;
n |= n >> 16;
return n + 1;
}
static size_t cheevos_eval_md5(
const struct retro_game_info *info,
MD5_CTX *ctx)
{
MD5_Init(ctx);
if (info->data)
{
MD5_Update(ctx, info->data, info->size);
return info->size;
}
else
{
RFILE *file = filestream_open(info->path, RFILE_MODE_READ, 0);
size_t size = 0;
if (!file)
return 0;
for (;;)
{
uint8_t buffer[4096];
ssize_t num_read = filestream_read(file,
(void*)buffer, sizeof(buffer));
if (num_read <= 0)
break;
MD5_Update(ctx, (void*)buffer, num_read);
size += num_read;
}
filestream_close(file);
return size;
}
}
static void cheevos_fill_md5(size_t size, size_t total, MD5_CTX *ctx)
{
char buffer[4096] = {0};
ssize_t fill = total - size;
memset((void*)buffer, 0, sizeof(buffer));
while (fill > 0)
{
ssize_t len = sizeof(buffer);
if (len > fill)
len = fill;
MD5_Update(ctx, (void*)buffer, len);
fill -= len;
}
}
static unsigned cheevos_find_game_id_generic(
const struct retro_game_info *info,
retro_time_t timeout)
{
MD5_CTX ctx;
retro_time_t to;
uint8_t hash[16] = {0};
size_t size = cheevos_eval_md5(info, &ctx);
MD5_Final(hash, &ctx);
if (!size)
return 0;
to = timeout;
return cheevos_get_game_id(hash, &to);
}
static unsigned cheevos_find_game_id_snes(
const struct retro_game_info *info,
retro_time_t timeout)
{
MD5_CTX ctx;
retro_time_t to;
uint8_t hash[16] = {0};
size_t size = cheevos_eval_md5(info, &ctx);
if (!size)
{
MD5_Final(hash, &ctx);
return 0;
}
cheevos_fill_md5(size, CHEEVOS_EIGHT_MB, &ctx);
MD5_Final(hash, &ctx);
to = timeout;
return cheevos_get_game_id(hash, &to);
}
static unsigned cheevos_find_game_id_genesis(
const struct retro_game_info *info, retro_time_t timeout)
{
MD5_CTX ctx;
uint8_t hash[16];
retro_time_t to;
size_t size = cheevos_eval_md5(info, &ctx);
if (!size)
{
MD5_Final(hash, &ctx);
return 0;
}
cheevos_fill_md5(size, CHEEVOS_SIX_MB, &ctx);
MD5_Final(hash, &ctx);
to = timeout;
return cheevos_get_game_id(hash, &to);
}
static unsigned cheevos_find_game_id_nes(
const struct retro_game_info *info,
retro_time_t timeout)
{
struct
{
uint8_t id[4]; /* NES^Z */
uint8_t rom_size;
uint8_t vrom_size;
uint8_t rom_type;
uint8_t rom_type2;
uint8_t reserve[8];
} header;
size_t rom_size;
MD5_CTX ctx;
uint8_t hash[16];
retro_time_t to;
if (info->data)
{
if (info->size < sizeof(header))
return 0;
memcpy((void*)&header, info->data, sizeof(header));
}
else
{
ssize_t num_read;
RFILE *file = filestream_open(info->path, RFILE_MODE_READ, 0);
if (!file)
return 0;
num_read = filestream_read(file, (void*)&header, sizeof(header));
filestream_close(file);
if (num_read < (ssize_t)sizeof(header))
return 0;
}
if ( header.id[0] != 'N'
|| header.id[1] != 'E'
|| header.id[2] != 'S'
|| header.id[3] != 0x1a)
return 0;
if (header.rom_size)
rom_size = cheevos_next_power_of_2(header.rom_size);
else
rom_size = 256;
if (info->data)
{
if (rom_size + sizeof(header) > info->size)
return 0;
MD5_Init(&ctx);
MD5_Update(&ctx,
(void*)((char*)info->data + sizeof(header)), rom_size);
MD5_Final(hash, &ctx);
}
else
{
unsigned bytes;
ssize_t num_read;
int i, mapper_no;
int not_power2[] =
{
53, 198, 228
};
bool round = true;
RFILE *file = filestream_open(info->path, RFILE_MODE_READ, 0);
uint8_t * data = (uint8_t *) malloc(rom_size << 14);
if (!file || !data)
{
if (file)
filestream_close(file);
return 0;
}
/* TODO/FIXME - any way we can move this per-core stuff
* somewhere else? Bound to become really messy in here over time */
/* from FCEU core - need it for a correctly md5 sum */
memset(data, 0xFF, rom_size << 14);
/* from FCEU core - compute size using the cart mapper */
mapper_no = (header.rom_type >> 4);
mapper_no |= (header.rom_type2 & 0xF0);
for (i = 0; i != ARRAY_SIZE(not_power2); ++i)
{
/* for games not to the power of 2, so we just read enough
* PRG rom from it, but we have to keep ROM_size to the power of 2
* since PRGCartMapping wants ROM_size to be to the power of 2
* so instead if not to power of 2, we just use head.ROM_size when
* we use FCEU_read. */
if (not_power2[i] == mapper_no)
{
round = false;
break;
}
}
MD5_Init(&ctx);
filestream_seek(file, sizeof(header), SEEK_SET);
/* TODO/FIXME - any way we can move this per-core stuff
* somewhere else? Bound to become really messy in here over time */
/* from FCEU core - check if Trainer included in ROM data */
if (header.rom_type & 4)
filestream_seek(file, sizeof(header), SEEK_CUR);
bytes = (round) ? rom_size : header.rom_size;
num_read = filestream_read(file, (void*)data, 0x4000 * bytes );
filestream_close(file);
if (num_read <= 0)
{
free(data);
return 0;
}
MD5_Update(&ctx, (void*) data, rom_size << 14);
MD5_Final(hash, &ctx);
free(data);
}
to = timeout;
return cheevos_get_game_id(hash, &to);
}
bool cheevos_load(const void *data)
{
static const uint32_t genesis_exts[] =
{
0x0b888feeU, /* mdx */
0x005978b6U, /* md */
0x0b88aa89U, /* smd */
0x0b88767fU, /* gen */
0x0b8861beU, /* bin */
0x0b886782U, /* cue */
0x0b8880d0U, /* iso */
0x0b88aa98U, /* sms */
0x005977f3U, /* gg */
0x0059797fU, /* sg */
0
};
static const uint32_t snes_exts[] =
{
0x0b88aa88U, /* smc */
0x0b8872bbU, /* fig */
0x0b88a9a1U, /* sfc */
0x0b887623U, /* gd3 */
0x0b887627U, /* gd7 */
0x0b886bf3U, /* dx2 */
0x0b886312U, /* bsx */
0x0b88abd2U, /* swc */
0
};
static cheevos_finder_t finders[] =
{
{cheevos_find_game_id_snes, "SNES (8Mb padding)", snes_exts},
{cheevos_find_game_id_genesis, "Genesis (6Mb padding)", genesis_exts},
{cheevos_find_game_id_nes, "NES (discards VROM)", NULL},
{cheevos_find_game_id_generic, "Generic (plain content)", NULL},
};
struct retro_system_info sysinfo;
unsigned i;
const char *json = NULL;
retro_time_t timeout = 5000000;
unsigned game_id = 0;
char url[256] = {0};
settings_t *settings = config_get_ptr();
const struct retro_game_info *info = (const struct retro_game_info*)data;
cheevos_locals.loaded = 0;
/* Just return OK if the core doesn't support cheevos, or info is NULL. */
if (!cheevos_locals.core_supports || !info)
return true;
cheevos_locals.meminfo[0].id = RETRO_MEMORY_SYSTEM_RAM;
core_get_memory(&cheevos_locals.meminfo[0]);
cheevos_locals.meminfo[1].id = RETRO_MEMORY_SAVE_RAM;
core_get_memory(&cheevos_locals.meminfo[1]);
cheevos_locals.meminfo[2].id = RETRO_MEMORY_VIDEO_RAM;
core_get_memory(&cheevos_locals.meminfo[2]);
cheevos_locals.meminfo[3].id = RETRO_MEMORY_RTC;
core_get_memory(&cheevos_locals.meminfo[3]);
/* Bail out if cheevos are disabled.
* But set the above anyways, command_read_ram needs it. */
if (!settings->cheevos.enable)
return true;
/* Use the supported extensions as a hint
* to what method we should use. */
core_get_system_info(&sysinfo);
for (i = 0; i < ARRAY_SIZE(finders); i++)
{
if (finders[i].ext_hashes)
{
const char *ext = sysinfo.valid_extensions;
while (ext)
{
int j;
unsigned hash;
const char *end = strchr(ext, '|');
if (end)
{
hash = cheevos_djb2(ext, end - ext);
ext = end + 1;
}
else
{
hash = cheevos_djb2(ext, strlen(ext));
ext = NULL;
}
for (j = 0; finders[i].ext_hashes[j]; j++)
{
if (finders[i].ext_hashes[j] == hash)
{
RARCH_LOG("CHEEVOS testing %s\n", finders[i].name);
game_id = finders[i].finder(info, 5000000);
if (game_id)
goto found;
ext = NULL; /* force next finder */
break;
}
}
}
}
}
for (i = 0; i < ARRAY_SIZE(finders); i++)
{
if (finders[i].ext_hashes)
continue;
RARCH_LOG("CHEEVOS testing %s\n", finders[i].name);
game_id = finders[i].finder(info, 5000000);
if (game_id)
goto found;
}
RARCH_LOG("CHEEVOS this game doesn't feature achievements\n");
return false;
found:
if (!cheevos_get_by_game_id(&json, game_id, &timeout))
{
if (!cheevos_parse(json))
{
cheevos_deactivate_unlocks(game_id, &timeout);
free((void*)json);
cheevos_locals.loaded = 1;
cheevos_make_playing_url(game_id, url, sizeof(url));
task_push_http_transfer(url, true, NULL,
cheevos_playing, (void*)(uintptr_t)game_id);
return true;
}
free((void*)json);
}
runloop_msg_queue_push("Error loading achievements", 0, 5 * 60, false);
RARCH_ERR("CHEEVOS error loading achievements\n", 0, 5 * 60, false);
return false;
}
void cheevos_populate_menu(void *data)
{
#ifdef HAVE_MENU
unsigned i;
unsigned items_found = 0;
settings_t *settings = config_get_ptr();
menu_displaylist_info_t *info = (menu_displaylist_info_t*)data;
cheevo_t *cheevo = cheevos_locals.core.cheevos;
const cheevo_t *end = cheevos_locals.core.cheevos +
cheevos_locals.core.count;
for (i = 0; cheevo < end; i++, cheevo++)
{
if (!cheevo->active)
{
menu_entries_append_enum(info->list, cheevo->title,
cheevo->description, MENU_ENUM_LABEL_CHEEVOS_UNLOCKED_ENTRY,
MENU_SETTINGS_CHEEVOS_START + i, 0, 0);
items_found++;
}
}
if (settings->cheevos.test_unofficial)
{
cheevo = cheevos_locals.unofficial.cheevos;
end = cheevos_locals.unofficial.cheevos
+ cheevos_locals.unofficial.count;
for (i = cheevos_locals.core.count; cheevo < end; i++, cheevo++)
{
if (!cheevo->active)
menu_entries_append_enum(info->list, cheevo->title,
cheevo->description, MENU_ENUM_LABEL_CHEEVOS_UNLOCKED_ENTRY,
MENU_SETTINGS_CHEEVOS_START + i, 0, 0);
}
}
cheevo = cheevos_locals.core.cheevos;
end = cheevos_locals.core.cheevos + cheevos_locals.core.count;
for (i = 0; cheevo < end; i++, cheevo++)
{
if (cheevo->active)
{
menu_entries_append_enum(info->list, cheevo->title,
cheevo->description, MENU_ENUM_LABEL_CHEEVOS_LOCKED_ENTRY,
MENU_SETTINGS_CHEEVOS_START + i, 0, 0);
items_found++;
}
}
if (settings->cheevos.test_unofficial)
{
cheevo = cheevos_locals.unofficial.cheevos;
end = cheevos_locals.unofficial.cheevos
+ cheevos_locals.unofficial.count;
for (i = cheevos_locals.core.count; cheevo < end; i++, cheevo++)
{
if (cheevo->active)
{
menu_entries_append_enum(info->list, cheevo->title,
cheevo->description, MENU_ENUM_LABEL_CHEEVOS_LOCKED_ENTRY,
MENU_SETTINGS_CHEEVOS_START + i, 0, 0);
items_found++;
}
}
}
if (items_found == 0)
{
menu_entries_append_enum(info->list,
msg_hash_to_str(MENU_ENUM_LABEL_VALUE_NO_ACHIEVEMENTS_TO_DISPLAY),
msg_hash_to_str(MENU_ENUM_LABEL_NO_ACHIEVEMENTS_TO_DISPLAY),
MENU_ENUM_LABEL_NO_ACHIEVEMENTS_TO_DISPLAY,
FILE_TYPE_NONE, 0, 0);
}
#endif
}
bool cheevos_get_description(cheevos_ctx_desc_t *desc)
{
cheevo_t *cheevos = cheevos_locals.core.cheevos;
if (desc->idx >= cheevos_locals.core.count)
{
cheevos = cheevos_locals.unofficial.cheevos;
desc->idx -= cheevos_locals.unofficial.count;
}
strncpy(desc->s, cheevos[desc->idx].description, desc->len);
desc->s[desc->len - 1] = 0;
return true;
}
bool cheevos_apply_cheats(bool *data_bool)
{
cheats_are_enabled = *data_bool;
cheats_were_enabled |= cheats_are_enabled;
return true;
}
bool cheevos_unload(void)
{
if (!cheevos_locals.loaded)
return false;
cheevos_free_cheevo_set(&cheevos_locals.core);
cheevos_free_cheevo_set(&cheevos_locals.unofficial);
cheevos_locals.loaded = 0;
return true;
}
bool cheevos_toggle_hardcore_mode(void)
{
settings_t *settings = config_get_ptr();
/* reset and deinit rewind to avoid cheat the score */
if (settings->cheevos.hardcore_mode_enable)
{
/* send reset core cmd to avoid any user savestate previusly loaded */
command_event(CMD_EVENT_RESET, NULL);
if (settings->rewind_enable)
command_event(CMD_EVENT_REWIND_DEINIT, NULL);
RARCH_LOG("%s\n", msg_hash_to_str(MSG_CHEEVOS_HARDCORE_MODE_ENABLE));
runloop_msg_queue_push(
msg_hash_to_str(MSG_CHEEVOS_HARDCORE_MODE_ENABLE), 0, 3 * 60, true);
}
else
{
if (settings->rewind_enable)
command_event(CMD_EVENT_REWIND_INIT, NULL);
}
return true;
}
bool cheevos_test(void)
{
if (!cheevos_locals.loaded)
return false;
if (!cheats_are_enabled && !cheats_were_enabled)
{
settings_t *settings = config_get_ptr();
if (!settings->cheevos.enable)
return false;
cheevos_test_cheevo_set(&cheevos_locals.core);
if (settings->cheevos.test_unofficial)
cheevos_test_cheevo_set(&cheevos_locals.unofficial);
}
return true;
}
bool cheevos_set_cheats(void)
{
cheats_were_enabled = cheats_are_enabled;
return true;
}
void cheevos_set_support_cheevos(bool state)
{
cheevos_locals.core_supports = state;
}
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