mirror of
https://github.com/ZDoom/gzdoom-gles.git
synced 2025-02-26 05:01:36 +00:00
4ce4a05518
- Added missing song restart position initialization to AM, AMFF, and DSM readers SVN r4087 (trunk)
376 lines
9.3 KiB
C
376 lines
9.3 KiB
C
/* _______ ____ __ ___ ___
|
|
* \ _ \ \ / \ / \ \ / / ' ' '
|
|
* | | \ \ | | || | \/ | . .
|
|
* | | | | | | || ||\ /| |
|
|
* | | | | | | || || \/ | | ' ' '
|
|
* | | | | | | || || | | . .
|
|
* | |_/ / \ \__// || | |
|
|
* /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
|
|
* / \
|
|
* / . \
|
|
* readam.c - Code to read a RIFF DSMF module / / \ \
|
|
* from a parsed RIFF structure. | < / \_
|
|
* | \/ /\ /
|
|
* By Chris Moeller. \_ / > /
|
|
* | \ / /
|
|
* | ' /
|
|
* \__/
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "dumb.h"
|
|
#include "internal/it.h"
|
|
#include "internal/riff.h"
|
|
|
|
DUH *dumb_read_riff_dsmf( struct riff * stream );
|
|
|
|
static int it_riff_dsmf_process_sample( IT_SAMPLE * sample, const unsigned char * data, int len )
|
|
{
|
|
int flags;
|
|
|
|
memcpy( sample->filename, data, 13 );
|
|
sample->filename[ 14 ] = 0;
|
|
|
|
flags = data[ 13 ] | ( data[ 14 ] << 8 );
|
|
sample->default_volume = data[ 15 ];
|
|
sample->length = data[ 16 ] | ( data[ 17 ] << 8 ) | ( data[ 18 ] << 16 ) | ( data[ 19 ] << 24 );
|
|
sample->loop_start = data[ 20 ] | ( data[ 21 ] << 8 ) | ( data[ 22 ] << 16 ) | ( data[ 23 ] << 24 );
|
|
sample->loop_end = data[ 24 ] | ( data[ 25 ] << 8 ) | ( data[ 26 ] << 16 ) | ( data[ 27 ] << 24 );
|
|
sample->C5_speed = ( data[ 32 ] | ( data[ 33 ] << 8 ) ) * 2;
|
|
memcpy( sample->name, data + 36, 28 );
|
|
sample->name[ 28 ] = 0;
|
|
|
|
/*if ( data[ 0x38 ] || data[ 0x39 ] || data[ 0x3A ] || data[ 0x3B ] )
|
|
return -1;*/
|
|
|
|
if ( ! sample->length ) {
|
|
sample->flags &= ~IT_SAMPLE_EXISTS;
|
|
return 0;
|
|
}
|
|
|
|
/*if ( flags & ~( 2 | 1 ) )
|
|
return -1;*/
|
|
|
|
if ( sample->length + 64 > len )
|
|
return -1;
|
|
|
|
sample->flags = IT_SAMPLE_EXISTS;
|
|
|
|
sample->default_pan = 0;
|
|
sample->global_volume = 64;
|
|
sample->vibrato_speed = 0;
|
|
sample->vibrato_depth = 0;
|
|
sample->vibrato_rate = 0;
|
|
sample->vibrato_waveform = IT_VIBRATO_SINE;
|
|
sample->finetune = 0;
|
|
sample->max_resampling_quality = -1;
|
|
|
|
if ( flags & 1 )
|
|
{
|
|
if (((unsigned int)sample->loop_end <= (unsigned int)sample->length) &&
|
|
((unsigned int)sample->loop_start < (unsigned int)sample->loop_end))
|
|
{
|
|
sample->length = sample->loop_end;
|
|
sample->flags |= IT_SAMPLE_LOOP;
|
|
if ( flags & 0x10 ) sample->flags |= IT_SAMPLE_PINGPONG_LOOP;
|
|
}
|
|
}
|
|
|
|
sample->data = malloc( sample->length );
|
|
if ( ! sample->data )
|
|
return -1;
|
|
|
|
memcpy( sample->data, data + 64, sample->length );
|
|
|
|
if ( ! ( flags & 2 ) )
|
|
{
|
|
for ( flags = 0; flags < sample->length; ++flags )
|
|
( ( signed char * ) sample->data ) [ flags ] ^= 0x80;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int it_riff_dsmf_process_pattern( IT_PATTERN * pattern, const unsigned char * data, int len )
|
|
{
|
|
int length, row, pos;
|
|
unsigned flags;
|
|
IT_ENTRY * entry;
|
|
|
|
length = data[ 0 ] | ( data[ 1 ] << 8 );
|
|
if ( length > len ) return -1;
|
|
|
|
data += 2;
|
|
len = length - 2;
|
|
|
|
pattern->n_rows = 64;
|
|
pattern->n_entries = 64;
|
|
|
|
row = 0;
|
|
pos = 0;
|
|
|
|
while ( (row < 64) && (pos < len) ) {
|
|
if ( ! data[ pos ] ) {
|
|
++ row;
|
|
++ pos;
|
|
continue;
|
|
}
|
|
|
|
flags = data[ pos++ ] & 0xF0;
|
|
|
|
if (flags) {
|
|
++ pattern->n_entries;
|
|
if (flags & 0x80) pos ++;
|
|
if (flags & 0x40) pos ++;
|
|
if (flags & 0x20) pos ++;
|
|
if (flags & 0x10) pos += 2;
|
|
}
|
|
}
|
|
|
|
if ( pattern->n_entries == 64 ) return 0;
|
|
|
|
pattern->entry = malloc( pattern->n_entries * sizeof( * pattern->entry ) );
|
|
if ( ! pattern->entry ) return -1;
|
|
|
|
entry = pattern->entry;
|
|
|
|
row = 0;
|
|
pos = 0;
|
|
|
|
while ( ( row < 64 ) && ( pos < len ) )
|
|
{
|
|
if ( ! data[ pos ] )
|
|
{
|
|
IT_SET_END_ROW( entry );
|
|
++ entry;
|
|
++ row;
|
|
++ pos;
|
|
continue;
|
|
}
|
|
|
|
flags = data[ pos++ ];
|
|
entry->channel = flags & 0x0F;
|
|
entry->mask = 0;
|
|
|
|
if ( flags & 0xF0 )
|
|
{
|
|
if ( flags & 0x80 )
|
|
{
|
|
if ( data[ pos ] )
|
|
{
|
|
entry->mask |= IT_ENTRY_NOTE;
|
|
entry->note = data[ pos ] - 1;
|
|
}
|
|
++ pos;
|
|
}
|
|
|
|
if ( flags & 0x40 )
|
|
{
|
|
if ( data[ pos ] )
|
|
{
|
|
entry->mask |= IT_ENTRY_INSTRUMENT;
|
|
entry->instrument = data[ pos ];
|
|
}
|
|
++ pos;
|
|
}
|
|
|
|
if ( flags & 0x20 )
|
|
{
|
|
entry->mask |= IT_ENTRY_VOLPAN;
|
|
entry->volpan = data[ pos ];
|
|
++ pos;
|
|
}
|
|
|
|
if ( flags & 0x10 )
|
|
{
|
|
_dumb_it_xm_convert_effect( data[ pos ], data[ pos + 1 ], entry, 0 );
|
|
pos += 2;
|
|
}
|
|
|
|
if (entry->mask) entry++;
|
|
}
|
|
}
|
|
|
|
while ( row < 64 )
|
|
{
|
|
IT_SET_END_ROW( entry );
|
|
++ entry;
|
|
++ row;
|
|
}
|
|
|
|
pattern->n_entries = (int)(entry - pattern->entry);
|
|
if ( ! pattern->n_entries ) return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static DUMB_IT_SIGDATA *it_riff_dsmf_load_sigdata( struct riff * stream )
|
|
{
|
|
DUMB_IT_SIGDATA *sigdata;
|
|
|
|
int n, o, found;
|
|
|
|
unsigned char * ptr;
|
|
|
|
if ( ! stream ) goto error;
|
|
|
|
if ( stream->type != DUMB_ID( 'D', 'S', 'M', 'F' ) ) goto error;
|
|
|
|
sigdata = malloc(sizeof(*sigdata));
|
|
if ( ! sigdata ) goto error;
|
|
|
|
sigdata->n_patterns = 0;
|
|
sigdata->n_samples = 0;
|
|
sigdata->name[0] = 0;
|
|
|
|
found = 0;
|
|
|
|
for ( n = 0; (unsigned int)n < stream->chunk_count; ++n )
|
|
{
|
|
struct riff_chunk * c = stream->chunks + n;
|
|
switch( c->type )
|
|
{
|
|
case DUMB_ID( 'S' ,'O' ,'N' ,'G' ):
|
|
/* initialization data */
|
|
if ( ( found ) || ( c->size < 192 ) ) goto error_sd;
|
|
found = 1;
|
|
break;
|
|
|
|
case DUMB_ID( 'P', 'A', 'T', 'T' ):
|
|
++ sigdata->n_patterns;
|
|
break;
|
|
|
|
case DUMB_ID( 'I', 'N', 'S', 'T' ):
|
|
++ sigdata->n_samples;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ( !found || !sigdata->n_samples || !sigdata->n_patterns ) goto error_sd;
|
|
|
|
if ( sigdata->n_samples > 255 || sigdata->n_patterns > 255 ) goto error_sd;
|
|
|
|
sigdata->song_message = NULL;
|
|
sigdata->order = NULL;
|
|
sigdata->instrument = NULL;
|
|
sigdata->sample = NULL;
|
|
sigdata->pattern = NULL;
|
|
sigdata->midi = NULL;
|
|
sigdata->checkpoint = NULL;
|
|
|
|
sigdata->mixing_volume = 48;
|
|
sigdata->pan_separation = 128;
|
|
|
|
sigdata->n_instruments = 0;
|
|
sigdata->n_orders = 0;
|
|
sigdata->restart_position = 0;
|
|
|
|
memset(sigdata->channel_volume, 64, DUMB_IT_N_CHANNELS);
|
|
|
|
for (n = 0; n < DUMB_IT_N_CHANNELS; n += 4) {
|
|
sigdata->channel_pan[n ] = 16;
|
|
sigdata->channel_pan[n+1] = 48;
|
|
sigdata->channel_pan[n+2] = 48;
|
|
sigdata->channel_pan[n+3] = 16;
|
|
}
|
|
|
|
for ( n = 0; (unsigned int)n < stream->chunk_count; ++n )
|
|
{
|
|
struct riff_chunk * c = stream->chunks + n;
|
|
switch ( c->type )
|
|
{
|
|
case DUMB_ID( 'S', 'O', 'N', 'G' ):
|
|
ptr = ( unsigned char * ) c->data;
|
|
memcpy( sigdata->name, c->data, 28 );
|
|
sigdata->name[ 28 ] = 0;
|
|
sigdata->flags = IT_WAS_AN_XM | IT_WAS_A_MOD | IT_STEREO | IT_OLD_EFFECTS | IT_COMPATIBLE_GXX;
|
|
sigdata->n_orders = ptr[ 36 ] | ( ptr[ 37 ] << 8 );
|
|
//sigdata->n_samples = ptr[ 38 ] | ( ptr[ 39 ] << 8 ); // whatever
|
|
//sigdata->n_patterns = ptr[ 40 ] | ( ptr[ 41 ] << 8 );
|
|
sigdata->n_pchannels = ptr[ 42 ] | ( ptr[ 43 ] << 8 );
|
|
sigdata->global_volume = ptr[ 44 ];
|
|
sigdata->mixing_volume = ptr[ 45 ];
|
|
sigdata->speed = ptr[ 46 ];
|
|
sigdata->tempo = ptr[ 47 ];
|
|
|
|
for ( o = 0; o < 16; ++o )
|
|
{
|
|
sigdata->channel_pan[ o ] = ptr[ 48 + o ] / 2;
|
|
}
|
|
|
|
sigdata->order = malloc( 128 );
|
|
if ( ! sigdata->order ) goto error_usd;
|
|
memcpy( sigdata->order, ptr + 64, 128 );
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
sigdata->pattern = malloc( sigdata->n_patterns * sizeof( *sigdata->pattern ) );
|
|
if ( ! sigdata->pattern ) goto error_usd;
|
|
for ( n = 0; n < sigdata->n_patterns; ++n )
|
|
sigdata->pattern[ n ].entry = NULL;
|
|
|
|
sigdata->sample = malloc( sigdata->n_samples * sizeof( *sigdata->sample ) );
|
|
if ( ! sigdata->sample ) goto error_usd;
|
|
for ( n = 0; n < sigdata->n_samples; ++n )
|
|
{
|
|
IT_SAMPLE * sample = sigdata->sample + n;
|
|
sample->data = NULL;
|
|
}
|
|
|
|
sigdata->n_samples = 0;
|
|
sigdata->n_patterns = 0;
|
|
|
|
for ( n = 0; (unsigned int)n < stream->chunk_count; ++n )
|
|
{
|
|
struct riff_chunk * c = stream->chunks + n;
|
|
switch ( c->type )
|
|
{
|
|
case DUMB_ID( 'P', 'A', 'T', 'T' ):
|
|
if ( it_riff_dsmf_process_pattern( sigdata->pattern + sigdata->n_patterns, ( unsigned char * ) c->data, c->size ) ) goto error_usd;
|
|
++ sigdata->n_patterns;
|
|
break;
|
|
|
|
case DUMB_ID( 'I', 'N', 'S', 'T' ):
|
|
if ( it_riff_dsmf_process_sample( sigdata->sample + sigdata->n_samples, ( unsigned char * ) c->data, c->size ) ) goto error_usd;
|
|
++ sigdata->n_samples;
|
|
break;
|
|
}
|
|
}
|
|
|
|
_dumb_it_fix_invalid_orders( sigdata );
|
|
|
|
return sigdata;
|
|
|
|
error_usd:
|
|
_dumb_it_unload_sigdata( sigdata );
|
|
goto error;
|
|
error_sd:
|
|
free( sigdata );
|
|
error:
|
|
return NULL;
|
|
}
|
|
|
|
DUH *dumb_read_riff_dsmf( struct riff * stream )
|
|
{
|
|
sigdata_t *sigdata;
|
|
|
|
DUH_SIGTYPE_DESC *descptr = &_dumb_sigtype_it;
|
|
|
|
sigdata = it_riff_dsmf_load_sigdata( stream );
|
|
|
|
if (!sigdata)
|
|
return NULL;
|
|
|
|
{
|
|
const char *tag[2][2];
|
|
tag[0][0] = "TITLE";
|
|
tag[0][1] = ((DUMB_IT_SIGDATA *)sigdata)->name;
|
|
tag[1][0] = "FORMAT";
|
|
tag[1][1] = "RIFF DSMF";
|
|
return make_duh( -1, 2, ( const char * const (*) [ 2 ] ) tag, 1, & descptr, & sigdata );
|
|
}
|
|
}
|