mirror of
https://github.com/ZDoom/raze-gles.git
synced 2024-12-26 03:30:46 +00:00
417 lines
9.4 KiB
C
417 lines
9.4 KiB
C
/* Extended Module Player
|
|
* Copyright (C) 1996-2018 Claudio Matsuoka and Hipolito Carraro Jr
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#include "common.h"
|
|
#include "loader.h"
|
|
|
|
#ifndef LIBXMP_CORE_PLAYER
|
|
|
|
/*
|
|
* From the Audio File Formats (version 2.5)
|
|
* Submitted-by: Guido van Rossum <guido@cwi.nl>
|
|
* Last-modified: 27-Aug-1992
|
|
*
|
|
* The Acorn Archimedes uses a variation on U-LAW with the bit order
|
|
* reversed and the sign bit in bit 0. Being a 'minority' architecture,
|
|
* Arc owners are quite adept at converting sound/image formats from
|
|
* other machines, and it is unlikely that you'll ever encounter sound in
|
|
* one of the Arc's own formats (there are several).
|
|
*/
|
|
static const int8 vdic_table[128] = {
|
|
/* 0 */ 0, 0, 0, 0, 0, 0, 0, 0,
|
|
/* 8 */ 0, 0, 0, 0, 0, 0, 0, 0,
|
|
/* 16 */ 0, 0, 0, 0, 0, 0, 0, 0,
|
|
/* 24 */ 1, 1, 1, 1, 1, 1, 1, 1,
|
|
/* 32 */ 1, 1, 1, 1, 2, 2, 2, 2,
|
|
/* 40 */ 2, 2, 2, 2, 3, 3, 3, 3,
|
|
/* 48 */ 3, 3, 4, 4, 4, 4, 5, 5,
|
|
/* 56 */ 5, 5, 6, 6, 6, 6, 7, 7,
|
|
/* 64 */ 7, 8, 8, 9, 9, 10, 10, 11,
|
|
/* 72 */ 11, 12, 12, 13, 13, 14, 14, 15,
|
|
/* 80 */ 15, 16, 17, 18, 19, 20, 21, 22,
|
|
/* 88 */ 23, 24, 25, 26, 27, 28, 29, 30,
|
|
/* 96 */ 31, 33, 34, 36, 38, 40, 42, 44,
|
|
/* 104 */ 46, 48, 50, 52, 54, 56, 58, 60,
|
|
/* 112 */ 62, 65, 68, 72, 77, 80, 84, 91,
|
|
/* 120 */ 95, 98, 103, 109, 114, 120, 126, 127
|
|
};
|
|
|
|
|
|
/* Convert 7 bit samples to 8 bit */
|
|
static void convert_7bit_to_8bit(uint8 *p, int l)
|
|
{
|
|
for (; l--; p++) {
|
|
*p <<= 1;
|
|
}
|
|
}
|
|
|
|
/* Convert Archimedes VIDC samples to linear */
|
|
static void convert_vidc_to_linear(uint8 *p, int l)
|
|
{
|
|
int i;
|
|
uint8 x;
|
|
|
|
for (i = 0; i < l; i++) {
|
|
x = p[i];
|
|
p[i] = vdic_table[x >> 1];
|
|
if (x & 0x01)
|
|
p[i] *= -1;
|
|
}
|
|
}
|
|
|
|
static void adpcm4_decoder(uint8 *inp, uint8 *outp, char *tab, int len)
|
|
{
|
|
char delta = 0;
|
|
uint8 b0, b1;
|
|
int i;
|
|
|
|
len = (len + 1) / 2;
|
|
|
|
for (i = 0; i < len; i++) {
|
|
b0 = *inp;
|
|
b1 = *inp++ >> 4;
|
|
delta += tab[b0 & 0x0f];
|
|
*outp++ = delta;
|
|
delta += tab[b1 & 0x0f];
|
|
*outp++ = delta;
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
/* Convert differential to absolute sample data */
|
|
static void convert_delta(uint8 *p, int l, int r)
|
|
{
|
|
uint16 *w = (uint16 *)p;
|
|
uint16 abs = 0;
|
|
|
|
if (r) {
|
|
for (; l--;) {
|
|
abs = *w + abs;
|
|
*w++ = abs;
|
|
}
|
|
} else {
|
|
for (; l--;) {
|
|
abs = *p + abs;
|
|
*p++ = (uint8) abs;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Convert signed to unsigned sample data */
|
|
static void convert_signal(uint8 *p, int l, int r)
|
|
{
|
|
uint16 *w = (uint16 *)p;
|
|
|
|
if (r) {
|
|
for (; l--; w++)
|
|
*w += 0x8000;
|
|
} else {
|
|
for (; l--; p++)
|
|
*p += (char)0x80; /* cast needed by MSVC++ */
|
|
}
|
|
}
|
|
|
|
/* Convert little-endian 16 bit samples to big-endian */
|
|
static void convert_endian(uint8 *p, int l)
|
|
{
|
|
uint8 b;
|
|
int i;
|
|
|
|
for (i = 0; i < l; i++) {
|
|
b = p[0];
|
|
p[0] = p[1];
|
|
p[1] = b;
|
|
p += 2;
|
|
}
|
|
}
|
|
|
|
#if 0
|
|
/* Downmix stereo samples to mono */
|
|
static void convert_stereo_to_mono(uint8 *p, int l, int r)
|
|
{
|
|
int16 *b = (int16 *)p;
|
|
int i;
|
|
|
|
if (r) {
|
|
l /= 2;
|
|
for (i = 0; i < l; i++)
|
|
b[i] = (b[i * 2] + b[i * 2 + 1]) / 2;
|
|
} else {
|
|
for (i = 0; i < l; i++)
|
|
p[i] = (p[i * 2] + p[i * 2 + 1]) / 2;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static void unroll_loop(struct xmp_sample *xxs)
|
|
{
|
|
int8 *s8;
|
|
int16 *s16;
|
|
int start, loop_size;
|
|
int i;
|
|
|
|
s16 = (int16 *)xxs->data;
|
|
s8 = (int8 *)xxs->data;
|
|
|
|
if (xxs->len > xxs->lpe) {
|
|
start = xxs->lpe;
|
|
} else {
|
|
start = xxs->len;
|
|
}
|
|
|
|
loop_size = xxs->lpe - xxs->lps;
|
|
|
|
if (xxs->flg & XMP_SAMPLE_16BIT) {
|
|
s16 += start;
|
|
for (i = 0; i < loop_size; i++) {
|
|
*(s16 + i) = *(s16 - i - 1);
|
|
}
|
|
} else {
|
|
s8 += start;
|
|
for (i = 0; i < loop_size; i++) {
|
|
*(s8 + i) = *(s8 - i - 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
int libxmp_load_sample(struct module_data *m, HIO_HANDLE *f, int flags, struct xmp_sample *xxs, const void *buffer)
|
|
{
|
|
int bytelen, extralen, unroll_extralen, i;
|
|
|
|
#ifndef LIBXMP_CORE_PLAYER
|
|
/* Adlib FM patches */
|
|
if (flags & SAMPLE_FLAG_ADLIB) {
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/* Empty or invalid samples
|
|
*/
|
|
if (xxs->len <= 0) {
|
|
return 0;
|
|
}
|
|
|
|
/* Skip sample loading
|
|
* FIXME: fails for ADPCM samples
|
|
*
|
|
* + Sanity check: skip huge samples (likely corrupt module)
|
|
*/
|
|
if (xxs->len > MAX_SAMPLE_SIZE || (m && m->smpctl & XMP_SMPCTL_SKIP)) {
|
|
if (~flags & SAMPLE_FLAG_NOLOAD) {
|
|
/* coverity[check_return] */
|
|
hio_seek(f, xxs->len, SEEK_CUR);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Loop parameters sanity check
|
|
*/
|
|
if (xxs->lps < 0) {
|
|
xxs->lps = 0;
|
|
}
|
|
if (xxs->lpe > xxs->len) {
|
|
xxs->lpe = xxs->len;
|
|
}
|
|
if (xxs->lps >= xxs->len || xxs->lps >= xxs->lpe) {
|
|
xxs->lps = xxs->lpe = 0;
|
|
xxs->flg &= ~(XMP_SAMPLE_LOOP | XMP_SAMPLE_LOOP_BIDIR);
|
|
}
|
|
|
|
/* Patches with samples
|
|
* Allocate extra sample for interpolation.
|
|
*/
|
|
bytelen = xxs->len;
|
|
extralen = 4;
|
|
unroll_extralen = 0;
|
|
|
|
/* Disable birectional loop flag if sample is not looped
|
|
*/
|
|
if (xxs->flg & XMP_SAMPLE_LOOP_BIDIR) {
|
|
if (~xxs->flg & XMP_SAMPLE_LOOP)
|
|
xxs->flg &= ~XMP_SAMPLE_LOOP_BIDIR;
|
|
}
|
|
/* Unroll bidirectional loops
|
|
*/
|
|
if (xxs->flg & XMP_SAMPLE_LOOP_BIDIR) {
|
|
unroll_extralen = (xxs->lpe - xxs->lps) -
|
|
(xxs->len - xxs->lpe);
|
|
|
|
if (unroll_extralen < 0) {
|
|
unroll_extralen = 0;
|
|
}
|
|
}
|
|
|
|
if (xxs->flg & XMP_SAMPLE_16BIT) {
|
|
bytelen *= 2;
|
|
extralen *= 2;
|
|
unroll_extralen *= 2;
|
|
}
|
|
|
|
/* add guard bytes before the buffer for higher order interpolation */
|
|
xxs->data = (unsigned char *)malloc(bytelen + extralen + unroll_extralen + 4);
|
|
if (xxs->data == NULL) {
|
|
goto err;
|
|
}
|
|
|
|
*(uint32 *)xxs->data = 0;
|
|
xxs->data += 4;
|
|
|
|
if (flags & SAMPLE_FLAG_NOLOAD) {
|
|
memcpy(xxs->data, buffer, bytelen);
|
|
} else
|
|
#ifndef LIBXMP_CORE_PLAYER
|
|
if (flags & SAMPLE_FLAG_ADPCM) {
|
|
int x2 = (bytelen + 1) >> 1;
|
|
char table[16];
|
|
|
|
if (hio_read(table, 1, 16, f) != 16) {
|
|
goto err2;
|
|
}
|
|
if (hio_read(xxs->data + x2, 1, x2, f) != x2) {
|
|
goto err2;
|
|
}
|
|
adpcm4_decoder((uint8 *)xxs->data + x2,
|
|
(uint8 *)xxs->data, table, bytelen);
|
|
} else
|
|
#endif
|
|
{
|
|
int x = hio_read(xxs->data, 1, bytelen, f);
|
|
if (x != bytelen) {
|
|
D_(D_WARN "short read (%d) in sample load", x - bytelen);
|
|
memset(xxs->data + x, 0, bytelen - x);
|
|
}
|
|
}
|
|
|
|
#ifndef LIBXMP_CORE_PLAYER
|
|
if (flags & SAMPLE_FLAG_7BIT) {
|
|
convert_7bit_to_8bit(xxs->data, xxs->len);
|
|
}
|
|
#endif
|
|
|
|
/* Fix endianism if needed */
|
|
if (xxs->flg & XMP_SAMPLE_16BIT) {
|
|
#ifdef WORDS_BIGENDIAN
|
|
if (~flags & SAMPLE_FLAG_BIGEND)
|
|
convert_endian(xxs->data, xxs->len);
|
|
#else
|
|
if (flags & SAMPLE_FLAG_BIGEND)
|
|
convert_endian(xxs->data, xxs->len);
|
|
#endif
|
|
}
|
|
|
|
/* Convert delta samples */
|
|
if (flags & SAMPLE_FLAG_DIFF) {
|
|
convert_delta(xxs->data, xxs->len, xxs->flg & XMP_SAMPLE_16BIT);
|
|
} else if (flags & SAMPLE_FLAG_8BDIFF) {
|
|
int len = xxs->len;
|
|
if (xxs->flg & XMP_SAMPLE_16BIT) {
|
|
len *= 2;
|
|
}
|
|
convert_delta(xxs->data, len, 0);
|
|
}
|
|
|
|
/* Convert samples to signed */
|
|
if (flags & SAMPLE_FLAG_UNS) {
|
|
convert_signal(xxs->data, xxs->len,
|
|
xxs->flg & XMP_SAMPLE_16BIT);
|
|
}
|
|
|
|
#if 0
|
|
/* Downmix stereo samples */
|
|
if (flags & SAMPLE_FLAG_STEREO) {
|
|
convert_stereo_to_mono(xxs->data, xxs->len,
|
|
xxs->flg & XMP_SAMPLE_16BIT);
|
|
xxs->len /= 2;
|
|
}
|
|
#endif
|
|
|
|
#ifndef LIBXMP_CORE_PLAYER
|
|
if (flags & SAMPLE_FLAG_VIDC) {
|
|
convert_vidc_to_linear(xxs->data, xxs->len);
|
|
}
|
|
#endif
|
|
|
|
/* Check for full loop samples */
|
|
if (flags & SAMPLE_FLAG_FULLREP) {
|
|
if (xxs->lps == 0 && xxs->len > xxs->lpe)
|
|
xxs->flg |= XMP_SAMPLE_LOOP_FULL;
|
|
}
|
|
|
|
/* Unroll bidirectional loops */
|
|
if (xxs->flg & XMP_SAMPLE_LOOP_BIDIR) {
|
|
unroll_loop(xxs);
|
|
bytelen += unroll_extralen;
|
|
}
|
|
|
|
/* Add extra samples at end */
|
|
if (xxs->flg & XMP_SAMPLE_16BIT) {
|
|
for (i = 0; i < 8; i++) {
|
|
xxs->data[bytelen + i] = xxs->data[bytelen - 2 + i];
|
|
}
|
|
} else {
|
|
for (i = 0; i < 4; i++) {
|
|
xxs->data[bytelen + i] = xxs->data[bytelen - 1 + i];
|
|
}
|
|
}
|
|
|
|
/* Add extra samples at start */
|
|
if (xxs->flg & XMP_SAMPLE_16BIT) {
|
|
xxs->data[-2] = xxs->data[0];
|
|
xxs->data[-1] = xxs->data[1];
|
|
} else {
|
|
xxs->data[-1] = xxs->data[0];
|
|
}
|
|
|
|
/* Fix sample at loop */
|
|
if (xxs->flg & XMP_SAMPLE_LOOP) {
|
|
int lpe = xxs->lpe;
|
|
int lps = xxs->lps;
|
|
|
|
if (xxs->flg & XMP_SAMPLE_LOOP_BIDIR) {
|
|
lpe += lpe - lps;
|
|
}
|
|
|
|
if (xxs->flg & XMP_SAMPLE_16BIT) {
|
|
lpe <<= 1;
|
|
lps <<= 1;
|
|
for (i = 0; i < 8; i++) {
|
|
xxs->data[lpe + i] = xxs->data[lps + i];
|
|
}
|
|
} else {
|
|
for (i = 0; i < 4; i++) {
|
|
xxs->data[lpe + i] = xxs->data[lps + i];
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
#ifndef LIBXMP_CORE_PLAYER
|
|
err2:
|
|
free(xxs->data - 4);
|
|
xxs->data = NULL; /* prevent double free in PCM load error */
|
|
#endif
|
|
err:
|
|
return -1;
|
|
}
|