mirror/RetroArch
1
0
Fork 0
mirror of https://github.com/libretro/RetroArch synced 2025-04-07 13:23:32 +00:00
Code Issues Packages Projects Releases Wiki Activity

correct evaluation of genesis md5 hashes

Browse Source
This commit is contained in:
Andre Leiradella 2015-11-03 00:54:26 -02:00
parent d132cfac7c
commit 7dc68443d6
1 changed files with 39 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
cheevos.c
View File

@ -17,22 +17,21 @@
#include <ctype.h> #include <ctype.h>
#include <formats/jsonsax.h> #include <formats/jsonsax.h>
#include <rhash.h>
#include <retro_file.h> #include <retro_file.h>
#include <rhash.h>
#include <retro_log.h> #include <retro_log.h>
#include <rthreads/async_job.h> #include <rthreads/async_job.h>
#include "cheevos.h" #include "cheevos.h"
#include "dynamic.h" #include "dynamic.h"
#include "net_http_special.h" #include "net_http_special.h"
#include "configuration.h" #include "configuration.h"
#include "performance.h" #include "performance.h"
#include "runloop.h" #include "runloop.h"
enum enum
{ {
CHEEVOS_VAR_SIZE_BIT_0 = 0, CHEEVOS_VAR_SIZE_BIT_0,
CHEEVOS_VAR_SIZE_BIT_1, CHEEVOS_VAR_SIZE_BIT_1,
CHEEVOS_VAR_SIZE_BIT_2, CHEEVOS_VAR_SIZE_BIT_2,
CHEEVOS_VAR_SIZE_BIT_3, CHEEVOS_VAR_SIZE_BIT_3,
@ -52,7 +51,7 @@ enum
enum enum
{ {
CHEEVOS_VAR_TYPE_ADDRESS = 0, /* compare to the value of a live address in RAM */ CHEEVOS_VAR_TYPE_ADDRESS, /* compare to the value of a live address in RAM */
CHEEVOS_VAR_TYPE_VALUE_COMP, /* a number. assume 32 bit */ CHEEVOS_VAR_TYPE_VALUE_COMP, /* a number. assume 32 bit */
CHEEVOS_VAR_TYPE_DELTA_MEM, /* the value last known at this address. */ CHEEVOS_VAR_TYPE_DELTA_MEM, /* the value last known at this address. */
CHEEVOS_VAR_TYPE_DYNAMIC_VAR, /* a custom user-set variable */ CHEEVOS_VAR_TYPE_DYNAMIC_VAR, /* a custom user-set variable */
@ -62,7 +61,7 @@ enum
enum enum
{ {
CHEEVOS_COND_OP_EQUALS = 0, CHEEVOS_COND_OP_EQUALS,
CHEEVOS_COND_OP_LESS_THAN, CHEEVOS_COND_OP_LESS_THAN,
CHEEVOS_COND_OP_LESS_THAN_OR_EQUAL, CHEEVOS_COND_OP_LESS_THAN_OR_EQUAL,
CHEEVOS_COND_OP_GREATER_THAN, CHEEVOS_COND_OP_GREATER_THAN,
@ -74,7 +73,7 @@ enum
enum enum
{ {
CHEEVOS_COND_TYPE_STANDARD = 0, CHEEVOS_COND_TYPE_STANDARD,
CHEEVOS_COND_TYPE_PAUSE_IF, CHEEVOS_COND_TYPE_PAUSE_IF,
CHEEVOS_COND_TYPE_RESET_IF, CHEEVOS_COND_TYPE_RESET_IF,
@ -883,6 +882,8 @@ Test all the achievements (call once per frame).
static const uint8_t *get_memory(unsigned offset) static const uint8_t *get_memory(unsigned offset)
{ {
static const uint8_t zeroes[4] = {0};
size_t size = core.retro_get_memory_size( RETRO_MEMORY_SYSTEM_RAM ); size_t size = core.retro_get_memory_size( RETRO_MEMORY_SYSTEM_RAM );
uint8_t *memory; uint8_t *memory;
@ -919,7 +920,7 @@ static const uint8_t *get_memory(unsigned offset)
return memory + offset; return memory + offset;
} }
return NULL; return zeroes;
} }
static unsigned get_var_value(cheevos_var_t *var) static unsigned get_var_value(cheevos_var_t *var)
@ -1501,6 +1502,7 @@ static int cheevos_deactivate_unlocks(unsigned game_id, retro_time_t *timeout)
return -1; return -1;
} }
#define CHEEVOS_SIX_MB (6 * 1024 * 1024)
#define CHEEVOS_EIGHT_MB (8 * 1024 * 1024) #define CHEEVOS_EIGHT_MB (8 * 1024 * 1024)
static size_t cheevos_eval_md5(const struct retro_game_info *info, MD5_CTX *ctx) static size_t cheevos_eval_md5(const struct retro_game_info *info, MD5_CTX *ctx)
@ -1598,12 +1600,41 @@ static unsigned cheevos_find_game_id_snes(const struct retro_game_info *info, re
return cheevos_get_game_id(hash, &to); 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;
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)
{
return 0;
}
int cheevos_load(const struct retro_game_info *info) int cheevos_load(const struct retro_game_info *info)
{ {
static const cheevos_id_finder_t finders[] = static const cheevos_id_finder_t finders[] =
{ {
cheevos_find_game_id_genesis,
cheevos_find_game_id_generic, cheevos_find_game_id_generic,
cheevos_find_game_id_snes cheevos_find_game_id_snes,
cheevos_find_game_id_nes,
}; };
retro_time_t timeout = 5000000; retro_time_t timeout = 5000000;