vgmstream/src/meta/ea_eaac_abk.c

198 lines
6.3 KiB
C
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2023-12-31 01:23:13 +01:00
#include "meta.h"
#include "../util/endianness.h"
static VGMSTREAM* parse_s10a_header(STREAMFILE* sf, off_t offset, uint16_t target_index, off_t ast_offset);
/* EA ABK - ABK header seems to be same as in the old games but the sound table is different and it contains SNR/SNS sounds instead */
VGMSTREAM* init_vgmstream_ea_abk_eaac(STREAMFILE* sf) {
VGMSTREAM* vgmstream;
int is_dupe, total_sounds = 0, target_stream = sf->stream_index;
off_t bnk_offset, modules_table, module_data, player_offset, samples_table, entry_offset, ast_offset;
off_t cfg_num_players_off, cfg_module_data_off, cfg_module_entry_size, cfg_samples_table_off;
uint32_t num_sounds, num_sample_tables;
uint16_t num_modules, bnk_index, bnk_target_index;
uint8_t num_players;
off_t sample_tables[0x400];
int32_t(*read_32bit)(off_t, STREAMFILE*);
int16_t(*read_16bit)(off_t, STREAMFILE*);
/* checks */
if (!is_id32be(0x00, sf, "ABKC"))
return NULL;
if (!check_extensions(sf, "abk"))
return NULL;
/* use table offset to check endianness */
if (guess_endian32(0x1C, sf)) {
read_32bit = read_32bitBE;
read_16bit = read_16bitBE;
} else {
read_32bit = read_32bitLE;
read_16bit = read_16bitLE;
}
if (target_stream == 0) target_stream = 1;
if (target_stream < 0)
goto fail;
num_modules = read_16bit(0x0A, sf);
modules_table = read_32bit(0x1C, sf);
bnk_offset = read_32bit(0x20, sf);
num_sample_tables = 0;
bnk_target_index = 0xFFFF;
ast_offset = 0;
if (!bnk_offset || !is_id32be(bnk_offset, sf, "S10A"))
goto fail;
/* set up some common values */
if (modules_table == 0x5C) {
/* the usual variant */
cfg_num_players_off = 0x24;
cfg_module_data_off = 0x2C;
cfg_module_entry_size = 0x3C;
cfg_samples_table_off = 0x04;
}
else if (modules_table == 0x78) {
/* FIFA 08 has a bunch of extra zeroes all over the place, don't know what's up with that */
cfg_num_players_off = 0x40;
cfg_module_data_off = 0x54;
cfg_module_entry_size = 0x68;
cfg_samples_table_off = 0x0C;
}
else {
goto fail;
}
for (uint32_t i = 0; i < num_modules; i++) {
num_players = read_8bit(modules_table + cfg_num_players_off, sf);
module_data = read_32bit(modules_table + cfg_module_data_off, sf);
if (num_players == 0xff) goto fail; /* EOF read */
for (uint32_t j = 0; j < num_players; j++) {
player_offset = read_32bit(modules_table + cfg_module_entry_size + 0x04 * j, sf);
samples_table = read_32bit(module_data + player_offset + cfg_samples_table_off, sf);
/* multiple players may point at the same sound table */
is_dupe = 0;
for (uint32_t k = 0; k < num_sample_tables; k++) {
if (samples_table == sample_tables[k]) {
is_dupe = 1;
break;
}
}
if (is_dupe)
continue;
sample_tables[num_sample_tables++] = samples_table;
num_sounds = read_32bit(samples_table, sf);
if (num_sounds == 0xffffffff) goto fail; /* EOF read */
for (uint32_t k = 0; k < num_sounds; k++) {
/* 0x00: sound index */
/* 0x02: priority */
/* 0x03: azimuth */
/* 0x08: streamed data offset */
entry_offset = samples_table + 0x04 + 0x0C * k;
bnk_index = read_16bit(entry_offset + 0x00, sf);
/* some of these are dummies */
if (bnk_index == 0xFFFF)
continue;
total_sounds++;
if (target_stream == total_sounds) {
bnk_target_index = bnk_index;
ast_offset = read_32bit(entry_offset + 0x08, sf);
}
}
}
/* skip class controllers */
num_players += read_8bit(modules_table + cfg_num_players_off + 0x03, sf);
modules_table += cfg_module_entry_size + num_players * 0x04;
}
if (bnk_target_index == 0xFFFF || ast_offset == 0)
goto fail;
vgmstream = parse_s10a_header(sf, bnk_offset, bnk_target_index, ast_offset);
if (!vgmstream) goto fail;
vgmstream->num_streams = total_sounds;
return vgmstream;
fail:
return NULL;
}
/* EA S10A header - seen inside new ABK files. Putting it here in case it's encountered stand-alone. */
static VGMSTREAM* parse_s10a_header(STREAMFILE* sf, off_t offset, uint16_t target_index, off_t sns_offset) {
VGMSTREAM* vgmstream;
STREAMFILE *sf_ast = NULL;
uint32_t num_sounds;
off_t snr_offset;
eaac_meta_t info = {0};
/* header is always big endian */
/* 0x00: header magic */
/* 0x04: version */
/* 0x05: padding */
/* 0x06: serial number */
/* 0x08: number of files */
/* 0x0C: offsets table */
if (!is_id32be(offset + 0x00, sf, "S10A"))
return NULL;
num_sounds = read_32bitBE(offset + 0x08, sf);
if (num_sounds == 0 || target_index >= num_sounds)
return NULL;
snr_offset = offset + read_32bitBE(offset + 0x0C + 0x04 * target_index, sf);
if (sns_offset == 0xFFFFFFFF) {
/* RAM asset */
//;VGM_LOG("EA S10A: RAM at snr=%lx", snr_offset);
info.sf_head = sf;
info.head_offset = snr_offset;
info.body_offset = 0x00;
info.type = meta_EA_SNR_SNS;
vgmstream = load_vgmstream_ea_eaac(&info);
if (!vgmstream) goto fail;
}
else {
/* streamed asset */
sf_ast = open_streamfile_by_ext(sf, "ast");
if (!sf_ast) {
vgm_logi("EA ABK: .ast file not found (find and put together)\n");
goto fail;
}
if (!is_id32be(0x00, sf_ast, "S10S"))
goto fail;
//;VGM_LOG("EA S10A: stream at snr=%lx, sns=%lx\n", snr_offset, sns_offset);
info.sf_head = sf;
info.sf_body = sf_ast;
info.head_offset = snr_offset;
info.body_offset = sns_offset;
info.type = meta_EA_SNR_SNS;
vgmstream = load_vgmstream_ea_eaac(&info);
if (!vgmstream) goto fail;
close_streamfile(sf_ast);
}
return vgmstream;
fail:
close_streamfile(sf_ast);
return NULL;
}