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Fix .bank with multiple FSB5 [Hades (Switch)]

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bnnm 2020-10-01 21:16:01 +02:00
parent ffaf08760b
commit d2dd3abf45
1 changed files with 47 additions and 34 deletions
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81
src/meta/fsb5_fev.c
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@ -8,6 +8,8 @@ VGMSTREAM* init_vgmstream_fsb5_fev_bank(STREAMFILE* sf) {
off_t subfile_offset, chunk_offset, bank_offset, offset;
size_t subfile_size, bank_size;
uint32_t version = 0;
int fsb5_pos, fsb5_subsong;
int total_subsongs, target_subsong = sf->stream_index;
/* checks */
@ -31,7 +33,7 @@ VGMSTREAM* init_vgmstream_fsb5_fev_bank(STREAMFILE* sf) {
goto fail; /* event .fev has "OBCT" instead of "BNKI" (which can also be empty) */
/* inside BNKI is a bunch of LIST each with event subchunks and somewhere the FSB5 offset */
/* inside BNKI is a bunch of LISTs each with event subchunks and somewhere the FSB5 offsets */
bank_offset = 0;
offset = chunk_offset + 0x04;
while (bank_offset == 0 && offset < get_streamfile_size(sf)) {
@ -65,39 +67,48 @@ VGMSTREAM* init_vgmstream_fsb5_fev_bank(STREAMFILE* sf) {
if (bank_offset == 0)
goto fail;
/* 0x00: unknown (chunk version? ex LE: 0x00080003, 0x00080005) */
{
/* versions:
* 0x28: Transistor (iOS) [+2015]
* 0x50: Runic Rampage (PC), Forza 7 (PC), Shantae: Half Genie Hero (Switch) [+2017]
* 0x58: Mana Spark (PC), Shantae and the Seven Sirens (PC) [+2018]
* 0x63: Banner Saga 3 (PC) [+2018]
* 0x64: Guacamelee! Super Turbo Championship Edition (Switch) [+2018]
* 0x65: Carrion (Switch) [+2020]
* 0x7D: Fall Guys (PC) [+2020] */
/* known bank versions:
* 0x28: Transistor (iOS) [~2015]
* 0x50: Runic Rampage (PC), Forza 7 (PC), Shantae: Half Genie Hero (Switch) [~2017]
* 0x58: Mana Spark (PC), Shantae and the Seven Sirens (PC) [~2018]
* 0x63: Banner Saga 3 (PC) [~2018]
* 0x64: Guacamelee! Super Turbo Championship Edition (Switch) [~2018]
* 0x65: Carrion (Switch) [~2020]
* 0x7D: Fall Guys (PC) [~2020]
* 0x84: SCP Unity (PC) [~2020]
* 0x86: Hades (Switch) [~2020] */
size_t entry_size = version <= 0x28 ? 0x04 : 0x08;
int banks;
int i, banks;
/* multiple banks is possible but rare (only seen an extra "Silence" FSB5 in Guacamelee 2 (Switch),
* which on PC is a regular subsong in the only FSB5) */
/* 0x00: unknown (chunk version? ex LE: 0x00080003, 0x00080005) */
banks = (bank_size - 0x04) / entry_size;
VGM_ASSERT(banks > 1, "FSB5FEV: multiple banks found\n");
/* multiple banks is possible but rare [Hades (Switch), Guacamelee 2 (Switch)],
* must map bank (global) subsong to FSB (internal) subsong */
/* Could try to set stream index based on FSB subsong ranges, also fixing num_streams and stream_index
* kinda involved and hard to test so for now just ignore it and use first offset */
if (target_subsong == 0) target_subsong = 1;
if (banks > 2)
goto fail;
if (banks == 2) {
off_t temp_offset = read_u32le(bank_offset + 0x04 + entry_size*1 + 0x00,sf);
//size_t temp_size = read_u32le(bank_offset + 0x04 + entry_size*1 + 0x04,sf);
fsb5_pos = 0;
fsb5_subsong = -1;
total_subsongs = 0;
for (i = 0; i < banks; i++) {
off_t fsb5_offset = read_u32le(bank_offset + 0x04 + entry_size*i + 0x00,sf);
int fsb5_subsongs = read_s32le(fsb5_offset + 0x08,sf);
int bank_subsongs = read_s32le(temp_offset + 0x08,sf);
if (bank_subsongs != 1) goto fail;
/* target in range */
if (target_subsong >= total_subsongs + 1 && target_subsong < total_subsongs + 1 + fsb5_subsongs) {
fsb5_pos = i;
fsb5_subsong = target_subsong - total_subsongs;
}
total_subsongs += fsb5_subsongs;
}
if (fsb5_subsong < 0)
goto fail;
if (version <= 0x28) {
subfile_offset = read_u32le(bank_offset+0x04,sf);
subfile_offset = read_u32le(bank_offset+0x04 + entry_size*fsb5_pos,sf);
subfile_size = /* meh */
read_u32le(subfile_offset + 0x0C,sf) +
read_u32le(subfile_offset + 0x10,sf) +
@ -105,22 +116,24 @@ VGMSTREAM* init_vgmstream_fsb5_fev_bank(STREAMFILE* sf) {
0x3C;
}
else {
subfile_offset = read_u32le(bank_offset+0x04,sf);
subfile_size = read_u32le(bank_offset+0x08,sf);
subfile_offset = read_u32le(bank_offset+0x04 + entry_size*fsb5_pos,sf);
subfile_size = read_u32le(bank_offset+0x08 + entry_size*fsb5_pos,sf);
}
}
temp_sf = setup_subfile_streamfile(sf, subfile_offset,subfile_size, "fsb");
if (!temp_sf) goto fail;
temp_sf->stream_index = fsb5_subsong; /* relative subsong, in case of multiple FSBs */
if (read_u32be(0x00, temp_sf) == 0x46534235) {
vgmstream = init_vgmstream_fsb5(temp_sf);
close_streamfile(temp_sf);
}
else { //other flag?
vgmstream = init_vgmstream_fsb_encrypted(temp_sf);
close_streamfile(temp_sf);
}
vgmstream = (read_u32be(0x00, temp_sf) == 0x46534235) ? /* "FSB5" (better flag?)*/
init_vgmstream_fsb5(temp_sf) :
init_vgmstream_fsb_encrypted(temp_sf);
close_streamfile(temp_sf);
if (!vgmstream) goto fail;
vgmstream->stream_index = sf->stream_index; //target_subsong; /* 0-index matters */
vgmstream->num_streams = total_subsongs;
return vgmstream;