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Merge pull request #5570 from leiradel/master

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Added a different code path to calculate the hash for Atari Lynx ROMs
This commit is contained in:
Twinaphex 2017-10-22 16:11:41 +02:00 committed by GitHub
commit 24d2cafbdf
1 changed files with 46 additions and 15 deletions
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61
cheevos/cheevos.c
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@ -2861,22 +2861,24 @@ static int cheevos_iterate(coro_t* coro)
size_t to_read = 4096;
uint8_t *buffer = NULL;
const char *end = NULL;
enum
{
/* Negative values because CORO_SUB generates positive values */
SNES_MD5 = -1,
GENESIS_MD5 = -2,
NES_MD5 = -3,
GENERIC_MD5 = -4,
EVAL_MD5 = -5,
FILL_MD5 = -6,
GET_GAMEID = -7,
GET_CHEEVOS = -8,
LOGIN = -9,
HTTP_GET = -10,
DEACTIVATE = -11,
PLAYING = -12,
DELAY = -13,
LYNX_MD5 = -3,
NES_MD5 = -4,
GENERIC_MD5 = -5,
EVAL_MD5 = -6,
FILL_MD5 = -7,
GET_GAMEID = -8,
GET_CHEEVOS = -9,
LOGIN = -10,
HTTP_GET = -11,
DEACTIVATE = -12,
PLAYING = -13,
DELAY = -14
};
static const uint32_t genesis_exts[] =
@ -2907,12 +2909,19 @@ static int cheevos_iterate(coro_t* coro)
0
};
static const uint32_t lynx_exts[] =
{
0x0b888cf7U, /* lnx */
0
};
static cheevos_finder_t finders[] =
{
{SNES_MD5, "SNES (8Mb padding)", snes_exts},
{GENESIS_MD5, "Genesis (6Mb padding)", genesis_exts},
{NES_MD5, "NES (discards VROM)", NULL},
{GENERIC_MD5, "Generic (plain content)", NULL},
{SNES_MD5, "SNES (8Mb padding)", snes_exts},
{GENESIS_MD5, "Genesis (6Mb padding)", genesis_exts},
{LYNX_MD5, "Atari Lynx (only first 512 bytes)", lynx_exts},
{NES_MD5, "NES (discards VROM)", NULL},
{GENERIC_MD5, "Generic (plain content)", NULL}
};
CORO_ENTER()
@ -3208,6 +3217,28 @@ static int cheevos_iterate(coro_t* coro)
MD5_Final(CHEEVOS_VAR_HASH, &CHEEVOS_VAR_MD5);
CORO_GOTO(GET_GAMEID);
/**************************************************************************
* Info Tries to identify an Atari Lynx game
* Input CHEEVOS_VAR_INFO the content info
* Output CHEEVOS_VAR_GAMEID the Retro Achievements game ID, or 0 if not found
*************************************************************************/
CORO_SUB(LYNX_MD5)
if (CHEEVOS_VAR_LEN < 0x0240)
{
CHEEVOS_VAR_GAMEID = 0;
CORO_RET();
}
MD5_Init(&CHEEVOS_VAR_MD5);
CHEEVOS_VAR_OFFSET = 0x0040;
CHEEVOS_VAR_COUNT = 0x0200;
CORO_GOSUB(EVAL_MD5);
MD5_Final(CHEEVOS_VAR_HASH, &CHEEVOS_VAR_MD5);
CORO_GOTO(GET_GAMEID);
/**************************************************************************
* Info Tries to identify a NES game
* Input CHEEVOS_VAR_INFO the content info