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Add .fish [Wonder Boy: The Dragon's Trap (PC)]

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This commit is contained in:
bnnm 2023-09-02 12:21:02 +02:00
parent cc78560271
commit 3b61d09fc5
2 changed files with 29 additions and 0 deletions
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1
src/formats.c
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@ -189,6 +189,7 @@ static const char* extension_list[] = {
"fda",
"ffw",
"filp",
"fish",
//"flac", //common
"flx",
"fsb",

28
src/meta/ogg_vorbis.c
View File

@ -302,6 +302,34 @@ static int _init_vgmstream_ogg_vorbis_tests(STREAMFILE* sf, ogg_vorbis_io_config
return 1;
}
/* .fish: Wonder Boy: The Dragon's Trap (PC) */
if (read_u32be(0x00,sf) == 0x4E7C0F0E) {
/* init big-ish table on startup, based on original unrolled code (sub_7FF7670FD990) */
cfg->key_len = 0x400;
if (sizeof(cfg->key) < cfg->key_len)
goto fail;
for (int i = 0; i < 0x400 / 4; i++) {
uint32_t key = i;
for (int round = 0; round < 8; round++) {
uint32_t tmp1 = (key >> 1);
uint32_t tmp2 = -(key & 1) & 0xEDB88324;
key = tmp1 ^ tmp2;
}
if (key == 0)
key = 0xEDB88324;
put_u32le(cfg->key + (i ^ 0x2A) * 4, key);
}
cfg->is_encrypted = 1;
if (!check_extensions(sf,"fish"))
goto fail;
return 1;
}
/***************************************/
/* harder to check (could be improved) */