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Fix some custom/buggy .dsp

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This commit is contained in:
bnnm 2024-08-10 23:48:36 +02:00
parent 0709ad1d87
commit edcffe05c4
1 changed files with 19 additions and 16 deletions
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35
src/meta/ngc_dsp_std.c
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@ -1,11 +1,12 @@
#include "meta.h"
#include "../layout/layout.h"
#include "../coding/coding.h"
#include "../util/endianness.h"
/* If these variables are packed properly in the struct (one after another)
* then this is actually how they are laid out in the file, albeit big-endian */
struct dsp_header {
typedef struct {
uint32_t sample_count; /* 0x00 */
uint32_t nibble_count; /* 0x04 (includes frame headers) */
uint32_t sample_rate; /* 0x08 (generally 22/32/44/48kz but games like Wario World set 32028hz to adjust for GC's rate) */
@ -26,13 +27,13 @@ struct dsp_header {
uint16_t block_size; /* 0x4c */
/* padding/reserved up to 0x60, DSPADPCM.exe from GC adds garbage here (uninitialized MSVC memory?)
* [ex. Batallion Wars (GC), Timesplitters 2 (GC)], 0xcccc...cccc with DSPADPCMD */
};
} dsp_header_t;
/* read and do basic validations to the above struct */
static bool read_dsp_header_endian(struct dsp_header *header, off_t offset, STREAMFILE* sf, int big_endian) {
uint32_t (*get_u32)(const uint8_t*) = big_endian ? get_u32be : get_u32le;
uint16_t (*get_u16)(const uint8_t*) = big_endian ? get_u16be : get_u16le;
int16_t (*get_s16)(const uint8_t*) = big_endian ? get_s16be : get_s16le;
static bool read_dsp_header_endian(dsp_header_t* header, off_t offset, STREAMFILE* sf, bool big_endian) {
get_u32_t get_u32 = big_endian ? get_u32be : get_u32le;
get_u16_t get_u16 = big_endian ? get_u16be : get_u16le;
get_s16_t get_s16 = big_endian ? get_s16be : get_s16le;
uint8_t buf[0x60];
int zero_coefs;
@ -71,9 +72,11 @@ static bool read_dsp_header_endian(struct dsp_header *header, off_t offset, STRE
header->loop_start_offset = get_u32(buf+0x10);
header->loop_end_offset = get_u32(buf+0x14);
//TODO: test if games react to changed initial offset
/* Dr. Muto uses 0, and some custom Metroid Prime loop start, so probably ignored by the hardware */
header->initial_offset = get_u32(buf+0x18);
if (header->initial_offset != 2 && header->initial_offset != 0)
goto fail; /* Dr. Muto uses 0 */
if (header->initial_offset != 2 && header->initial_offset != 0 && header->initial_offset != header->loop_start_offset)
goto fail;
zero_coefs = 0;
for (int i = 0; i < 16; i++) {
@ -110,10 +113,10 @@ static bool read_dsp_header_endian(struct dsp_header *header, off_t offset, STRE
fail:
return false;
}
static int read_dsp_header_be(struct dsp_header *header, off_t offset, STREAMFILE* file) {
static int read_dsp_header_be(dsp_header_t *header, off_t offset, STREAMFILE* file) {
return read_dsp_header_endian(header, offset, file, 1);
}
static int read_dsp_header_le(struct dsp_header *header, off_t offset, STREAMFILE* file) {
static int read_dsp_header_le(dsp_header_t *header, off_t offset, STREAMFILE* file) {
return read_dsp_header_endian(header, offset, file, 0);
}
@ -154,7 +157,7 @@ static VGMSTREAM* init_vgmstream_dsp_common(STREAMFILE* sf, dsp_meta* dspm) {
VGMSTREAM* vgmstream = NULL;
int i, j;
int loop_flag;
struct dsp_header ch_header[COMMON_DSP_MAX_CHANNELS];
dsp_header_t ch_header[COMMON_DSP_MAX_CHANNELS];
if (dspm->channels > dspm->max_channels)
@ -306,7 +309,7 @@ fail:
/* .dsp - standard mono dsp as generated by DSPADPCM.exe */
VGMSTREAM* init_vgmstream_ngc_dsp_std(STREAMFILE* sf) {
VGMSTREAM* vgmstream = NULL;
struct dsp_header header;
dsp_header_t header;
const size_t header_size = 0x60;
off_t start_offset;
int i, channels;
@ -338,7 +341,7 @@ VGMSTREAM* init_vgmstream_ngc_dsp_std(STREAMFILE* sf) {
// (but .dsp is the common case, so it'd be slower)
{
int ko;
struct dsp_header header2;
dsp_header_t header2;
/* ignore headers one after another */
ko = !read_dsp_header_be(&header2, header_size, sf);
@ -427,7 +430,7 @@ fail:
/* .dsp - little endian dsp, possibly main Switch .dsp [LEGO Worlds (Switch)] */
VGMSTREAM* init_vgmstream_ngc_dsp_std_le(STREAMFILE* sf) {
VGMSTREAM* vgmstream = NULL;
struct dsp_header header;
dsp_header_t header;
const size_t header_size = 0x60;
off_t start_offset;
int i, channels;
@ -450,7 +453,7 @@ VGMSTREAM* init_vgmstream_ngc_dsp_std_le(STREAMFILE* sf) {
* In many cases these will pass all the other checks, including the
* predictor/scale check if the first byte is 0 */
{
struct dsp_header header2;
dsp_header_t header2;
int ko;
ko = !read_dsp_header_le(&header2, header_size, sf);
@ -510,7 +513,7 @@ fail:
/* .dsp - standard multi-channel dsp as generated by DSPADPCM.exe (later revisions) */
VGMSTREAM* init_vgmstream_ngc_mdsp_std(STREAMFILE* sf) {
VGMSTREAM* vgmstream = NULL;
struct dsp_header header;
dsp_header_t header;
const size_t header_size = 0x60;
off_t start_offset;
int i, c, channels;