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VAB: Fixes, use loop points if present

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This commit is contained in:
NicknineTheEagle 2022-08-06 09:59:43 +03:00
parent aaed7926ea
commit 951016483d
1 changed files with 33 additions and 22 deletions
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55
src/meta/vab.c
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@ -1,17 +1,17 @@
#include "meta.h"
#include "../coding/coding.h"
static int16_t SsPitchFromNote(int16_t note, int16_t fine, uint8_t center, uint8_t shift);
static uint16_t SsPitchFromNote(int16_t note, int16_t fine, uint8_t center, uint8_t shift);
/* .VAB - standard PS1 bank format */
VGMSTREAM* init_vgmstream_vab(STREAMFILE* sf) {
uint16_t programs, tones, wave_num;
int16_t pitch;
uint16_t programs, wave_num, pitch;
uint8_t center, shift;
off_t programs_off, tones_off, waves_off, entry_off, data_offset;
size_t data_size;
int target_subsong = sf->stream_index, is_vh = 0, tone_num, tones_parsed;
int i, j;
int target_subsong = sf->stream_index, is_vh = 0, program_num, tone_num, total_subsongs,
channels, loop_flag, loop_start = 0, loop_end = 0;
int i;
STREAMFILE* sf_data = NULL;
VGMSTREAM* vgmstream = NULL;
@ -34,7 +34,7 @@ VGMSTREAM* init_vgmstream_vab(STREAMFILE* sf) {
}
programs = read_u16le(0x12, sf);
tones = read_u16le(0x14, sf);
//tones = read_u16le(0x14, sf);
//waves = read_u16le(0x16, sf);
programs_off = 0x20;
@ -42,24 +42,30 @@ VGMSTREAM* init_vgmstream_vab(STREAMFILE* sf) {
waves_off = tones_off + programs * 16 * 0x20;
if (target_subsong == 0) target_subsong = 1;
if (target_subsong < 0 || target_subsong > tones || tones < 1)
if (target_subsong < 0)
goto fail;
tones_parsed = 0;
tone_num = target_subsong - 1;
total_subsongs = 0;
program_num = -1;
for (i = 0; i < programs; i++) {
uint8_t program_tones;
int local_target;
local_target = target_subsong - total_subsongs - 1;
entry_off = programs_off + i * 0x10;
program_tones = read_u8(entry_off + 0x00, sf);
tones_parsed += program_tones;
if (target_subsong - 1 < tones_parsed)
break;
total_subsongs += program_tones;
tone_num -= program_tones;
if (local_target >= 0 && local_target < program_tones) {
program_num = i;
tone_num = local_target;
}
}
entry_off = tones_off + i * 16 * 0x20 + tone_num * 0x20;
if (program_num == -1)
goto fail;
entry_off = tones_off + program_num * 16 * 0x20 + tone_num * 0x20;
center = read_u8(entry_off + 0x04, sf);
shift = read_u8(entry_off + 0x05, sf);
wave_num = read_u16le(entry_off + 0x16, sf);
@ -68,24 +74,29 @@ VGMSTREAM* init_vgmstream_vab(STREAMFILE* sf) {
pitch = SsPitchFromNote(60, 0, center, shift);
data_offset = is_vh ? 0x00 : (waves_off + 256 * 0x02);
for (j = 0; j < wave_num; j++) {
data_offset += read_u16le(waves_off + j * 0x02, sf) << 3;
for (i = 0; i < wave_num; i++) {
data_offset += read_u16le(waves_off + i * 0x02, sf) << 3;
}
data_size = read_u16le(waves_off + j * 0x02, sf) << 3;
data_size = read_u16le(waves_off + i * 0x02, sf) << 3;
channels = 1;
loop_flag = ps_find_loop_offsets(sf_data, data_offset, data_size, channels, 0, &loop_start, &loop_end);
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(1, 0);
vgmstream = allocate_vgmstream(channels, loop_flag);
if (!vgmstream) goto fail;
vgmstream->meta_type = meta_VAB;
vgmstream->coding_type = coding_PSX;
vgmstream->layout_type = layout_none;
vgmstream->sample_rate = (pitch * 44100) / 4096; // FIXME: Maybe use actual pitching if implemented.
vgmstream->num_samples = ps_bytes_to_samples(data_size, 1);
vgmstream->num_samples = ps_bytes_to_samples(data_size, channels);
vgmstream->loop_start_sample = loop_start;
vgmstream->loop_end_sample = loop_end;
vgmstream->stream_size = data_size;
vgmstream->num_streams = tones;
snprintf(vgmstream->stream_name, STREAM_NAME_SIZE, "%02d/%02d", i, tone_num);
vgmstream->num_streams = total_subsongs;
snprintf(vgmstream->stream_name, STREAM_NAME_SIZE, "%02d/%02d", program_num, tone_num);
if (!vgmstream_open_stream(vgmstream, sf_data, data_offset))
goto fail;
@ -130,7 +141,7 @@ static uint16_t _svm_ptable[] =
8192
};
static int16_t SsPitchFromNote(int16_t note, int16_t fine, uint8_t center, uint8_t shift) {
static uint16_t SsPitchFromNote(int16_t note, int16_t fine, uint8_t center, uint8_t shift) {
uint32_t pitch;
int16_t calc, type;