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hvl_replay.c
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hvl_replay.c
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/* AHX originally by Pink/Abyss and bigup Xeron for Hivelytracker! */
/*
** Changes for the 1.4 release are commented. You can do
** a search for "1.4" and merge them into your own replay
** code.
**
** Changes for 1.5 are marked also.
**
** ... as are those for 1.6
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <math.h>
#include "hvl_replay.h"
#include "pineapple.h"
int32 stereopan_left[] = { 128, 96, 64, 32, 0 };
int32 stereopan_right[] = { 128, 160, 193, 225, 255 };
/*
** Waves
*/
#define WHITENOISELEN (0x280*3)
#define WO_LOWPASSES 0
#define WO_TRIANGLE_04 (WO_LOWPASSES+((0xfc+0xfc+0x80*0x1f+0x80+3*0x280)*31))
#define WO_TRIANGLE_08 (WO_TRIANGLE_04+0x04)
#define WO_TRIANGLE_10 (WO_TRIANGLE_08+0x08)
#define WO_TRIANGLE_20 (WO_TRIANGLE_10+0x10)
#define WO_TRIANGLE_40 (WO_TRIANGLE_20+0x20)
#define WO_TRIANGLE_80 (WO_TRIANGLE_40+0x40)
#define WO_SAWTOOTH_04 (WO_TRIANGLE_80+0x80)
#define WO_SAWTOOTH_08 (WO_SAWTOOTH_04+0x04)
#define WO_SAWTOOTH_10 (WO_SAWTOOTH_08+0x08)
#define WO_SAWTOOTH_20 (WO_SAWTOOTH_10+0x10)
#define WO_SAWTOOTH_40 (WO_SAWTOOTH_20+0x20)
#define WO_SAWTOOTH_80 (WO_SAWTOOTH_40+0x40)
#define WO_SQUARES (WO_SAWTOOTH_80+0x80)
#define WO_WHITENOISE (WO_SQUARES+(0x80*0x20))
#define WO_HIGHPASSES (WO_WHITENOISE+WHITENOISELEN)
#define WAVES_SIZE (WO_HIGHPASSES+((0xfc+0xfc+0x80*0x1f+0x80+3*0x280)*31))
int8 waves[WAVES_SIZE];
int16 waves2[WAVES_SIZE];
int16 vib_tab[] = {
0,24,49,74,97,120,141,161,180,197,212,224,235,244,250,253,255,
253,250,244,235,224,212,197,180,161,141,120,97,74,49,24,
0,-24,-49,-74,-97,-120,-141,-161,-180,-197,-212,-224,-235,-244,-250,-253,-255,
-253,-250,-244,-235,-224,-212,-197,-180,-161,-141,-120,-97,-74,-49,-24
};
uint16 period_tab[] = {
0x0000, 0x0D60, 0x0CA0, 0x0BE8, 0x0B40, 0x0A98, 0x0A00, 0x0970,
0x08E8, 0x0868, 0x07F0, 0x0780, 0x0714, 0x06B0, 0x0650, 0x05F4,
0x05A0, 0x054C, 0x0500, 0x04B8, 0x0474, 0x0434, 0x03F8, 0x03C0,
0x038A, 0x0358, 0x0328, 0x02FA, 0x02D0, 0x02A6, 0x0280, 0x025C,
0x023A, 0x021A, 0x01FC, 0x01E0, 0x01C5, 0x01AC, 0x0194, 0x017D,
0x0168, 0x0153, 0x0140, 0x012E, 0x011D, 0x010D, 0x00FE, 0x00F0,
0x00E2, 0x00D6, 0x00CA, 0x00BE, 0x00B4, 0x00AA, 0x00A0, 0x0097,
0x008F, 0x0087, 0x007F, 0x0078, 0x0071
};
uint32 panning_left[256], panning_right[256];
void hvl_GenPanningTables(void){
uint32 i;
float64 aa, ab;
// Sine based panning table
aa = (3.14159265f*2.0f)/4.0f; // Quarter of the way through the sinewave == top peak
ab = 0.0f; // Start of the climb from zero
for( i=0; i<256; i++ ){
panning_left[i] = (uint32)(sin(aa)*255.0f);
panning_right[i] = (uint32)(sin(ab)*255.0f);
aa += (3.14159265*2.0f/4.0f)/256.0f;
ab += (3.14159265*2.0f/4.0f)/256.0f;
}
panning_left[255] = 0;
panning_right[0] = 0;
}
void hvl_GenSawtooth(int8 *buf, uint32 len){
uint32 i;
int32 val, add;
add = 256 / (len-1);
val = -128;
for( i=0; i<len; i++, val += add )
*buf++ = (int8)val;
}
void hvl_GenTriangle( int8 *buf, uint32 len )
{
uint32 i;
int32 d2, d5, d1, d4;
int32 val;
int8 *buf2;
d2 = len;
d5 = len >> 2;
d1 = 128/d5;
d4 = -(d2 >> 1);
val = 0;
for( i=0; i<d5; i++ )
{
*buf++ = val;
val += d1;
}
*buf++ = 0x7f;
if( d5 != 1 )
{
val = 128;
for( i=0; i<d5-1; i++ )
{
val -= d1;
*buf++ = val;
}
}
buf2 = buf + d4;
for( i=0; i<d5*2; i++ )
{
int8 c;
c = *buf2++;
if( c == 0x7f )
c = 0x80;
else
c = -c;
*buf++ = c;
}
}
void hvl_GenSquare( int8 *buf )
{
uint32 i, j;
for( i=1; i<=0x20; i++ )
{
for( j=0; j<(0x40-i)*2; j++ )
*buf++ = 0x80;
for( j=0; j<i*2; j++ )
*buf++ = 0x7f;
}
}
static inline float64 clip( float64 x )
{
if( x > 127.f )
x = 127.f;
else if( x < -128.f )
x = -128.f;
return x;
}
void hvl_GenFilterWaves( int8 *buf, int8 *lowbuf, int8 *highbuf )
{
static const uint16 lentab[45] = { 3, 7, 0xf, 0x1f, 0x3f, 0x7f, 3, 7, 0xf, 0x1f, 0x3f, 0x7f,
0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,
0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,
(0x280*3)-1 };
float64 freq;
uint32 temp;
for( temp=0, freq=8.f; temp<31; temp++, freq+=3.f )
{
uint32 wv;
int8 *a0 = buf;
for( wv=0; wv<6+6+0x20+1; wv++ )
{
float64 fre, high, mid, low;
uint32 i;
mid = 0.f;
low = 0.f;
fre = freq * 1.25f / 100.0f;
for( i=0; i<=lentab[wv]; i++ )
{
high = a0[i] - mid - low;
high = clip( high );
mid += high * fre;
mid = clip( mid );
low += mid * fre;
low = clip( low );
}
for( i=0; i<=lentab[wv]; i++ )
{
high = a0[i] - mid - low;
high = clip( high );
mid += high * fre;
mid = clip( mid );
low += mid * fre;
low = clip( low );
*lowbuf++ = (int8)low;
*highbuf++ = (int8)high;
}
a0 += lentab[wv]+1;
}
}
}
void hvl_GenWhiteNoise( int8 *buf, uint32 len )
{
uint32 ays;
ays = 0x41595321;
do {
uint16 ax, bx;
int8 s;
s = ays;
if( ays & 0x100 )
{
s = 0x80;
if( (int32)(ays & 0xffff) >= 0 )
s = 0x7f;
}
*buf++ = s;
len--;
ays = (ays >> 5) | (ays << 27);
ays = (ays & 0xffffff00) | ((ays & 0xff) ^ 0x9a);
bx = ays;
ays = (ays << 2) | (ays >> 30);
ax = ays;
bx += ax;
ax ^= bx;
ays = (ays & 0xffff0000) | ax;
ays = (ays >> 3) | (ays << 29);
} while( len );
}
void hvl_reset_some_stuff( struct hvl_tune *ht )
{
uint32 i;
for( i=0; i<MAX_CHANNELS; i++ )
{
ht->ht_Voices[i].vc_Delta=1;
ht->ht_Voices[i].vc_OverrideTranspose=1000; // 1.5
ht->ht_Voices[i].vc_SamplePos=ht->ht_Voices[i].vc_Track=ht->ht_Voices[i].vc_Transpose=ht->ht_Voices[i].vc_NextTrack = ht->ht_Voices[i].vc_NextTranspose = 0;
ht->ht_Voices[i].vc_ADSRVolume=ht->ht_Voices[i].vc_InstrPeriod=ht->ht_Voices[i].vc_TrackPeriod=ht->ht_Voices[i].vc_VibratoPeriod=ht->ht_Voices[i].vc_NoteMaxVolume=ht->ht_Voices[i].vc_PerfSubVolume=ht->ht_Voices[i].vc_TrackMasterVolume=0;
ht->ht_Voices[i].vc_NewWaveform=ht->ht_Voices[i].vc_Waveform=ht->ht_Voices[i].vc_PlantSquare=ht->ht_Voices[i].vc_PlantPeriod=ht->ht_Voices[i].vc_IgnoreSquare=0;
ht->ht_Voices[i].vc_TrackOn=ht->ht_Voices[i].vc_FixedNote=ht->ht_Voices[i].vc_VolumeSlideUp=ht->ht_Voices[i].vc_VolumeSlideDown=ht->ht_Voices[i].vc_HardCut=ht->ht_Voices[i].vc_HardCutRelease=ht->ht_Voices[i].vc_HardCutReleaseF=0;
ht->ht_Voices[i].vc_PeriodSlideSpeed=ht->ht_Voices[i].vc_PeriodSlidePeriod=ht->ht_Voices[i].vc_PeriodSlideLimit=ht->ht_Voices[i].vc_PeriodSlideOn=ht->ht_Voices[i].vc_PeriodSlideWithLimit=0;
ht->ht_Voices[i].vc_PeriodPerfSlideSpeed=ht->ht_Voices[i].vc_PeriodPerfSlidePeriod=ht->ht_Voices[i].vc_PeriodPerfSlideOn=ht->ht_Voices[i].vc_VibratoDelay=ht->ht_Voices[i].vc_VibratoCurrent=ht->ht_Voices[i].vc_VibratoDepth=ht->ht_Voices[i].vc_VibratoSpeed=0;
ht->ht_Voices[i].vc_SquareOn=ht->ht_Voices[i].vc_SquareInit=ht->ht_Voices[i].vc_SquareLowerLimit=ht->ht_Voices[i].vc_SquareUpperLimit=ht->ht_Voices[i].vc_SquarePos=ht->ht_Voices[i].vc_SquareSign=ht->ht_Voices[i].vc_SquareSlidingIn=ht->ht_Voices[i].vc_SquareReverse=0;
ht->ht_Voices[i].vc_FilterOn=ht->ht_Voices[i].vc_FilterInit=ht->ht_Voices[i].vc_FilterLowerLimit=ht->ht_Voices[i].vc_FilterUpperLimit=ht->ht_Voices[i].vc_FilterPos=ht->ht_Voices[i].vc_FilterSign=ht->ht_Voices[i].vc_FilterSpeed=ht->ht_Voices[i].vc_FilterSlidingIn=ht->ht_Voices[i].vc_IgnoreFilter=0;
ht->ht_Voices[i].vc_PerfCurrent=ht->ht_Voices[i].vc_PerfSpeed=ht->ht_Voices[i].vc_WaveLength=ht->ht_Voices[i].vc_NoteDelayOn=ht->ht_Voices[i].vc_NoteCutOn=0;
ht->ht_Voices[i].vc_AudioPeriod=ht->ht_Voices[i].vc_AudioVolume=ht->ht_Voices[i].vc_VoiceVolume=ht->ht_Voices[i].vc_VoicePeriod=ht->ht_Voices[i].vc_VoiceNum=ht->ht_Voices[i].vc_WNRandom=0;
ht->ht_Voices[i].vc_SquareWait=ht->ht_Voices[i].vc_FilterWait=ht->ht_Voices[i].vc_PerfWait=ht->ht_Voices[i].vc_NoteDelayWait=ht->ht_Voices[i].vc_NoteCutWait=0;
ht->ht_Voices[i].vc_PerfList=0;
ht->ht_Voices[i].vc_RingSamplePos=ht->ht_Voices[i].vc_RingDelta=ht->ht_Voices[i].vc_RingPlantPeriod=ht->ht_Voices[i].vc_RingAudioPeriod=ht->ht_Voices[i].vc_RingNewWaveform=ht->ht_Voices[i].vc_RingWaveform=ht->ht_Voices[i].vc_RingFixedPeriod=ht->ht_Voices[i].vc_RingBasePeriod=0;
ht->ht_Voices[i].vc_RingMixSource = NULL;
ht->ht_Voices[i].vc_RingAudioSource = NULL;
memset(&ht->ht_Voices[i].vc_SquareTempBuffer,0,0x80);
memset(&ht->ht_Voices[i].vc_ADSR,0,sizeof(struct hvl_envelope));
memset(&ht->ht_Voices[i].vc_VoiceBuffer,0,0x281);
memset(&ht->ht_Voices[i].vc_RingVoiceBuffer,0,0x281);
}
for( i=0; i<MAX_CHANNELS; i++ )
{
ht->ht_Voices[i].vc_WNRandom = 0x280;
ht->ht_Voices[i].vc_VoiceNum = i;
ht->ht_Voices[i].vc_TrackMasterVolume = 0x40;
ht->ht_Voices[i].vc_TrackOn = 1;
ht->ht_Voices[i].vc_MixSource = ht->ht_Voices[i].vc_VoiceBuffer;
}
}
BOOL hvl_InitSubsong( struct hvl_tune *ht, uint32 nr )
{
uint32 PosNr, i;
if( nr > ht->ht_SubsongNr )
return FALSE;
ht->ht_SongNum = nr;
PosNr = 0;
if( nr ) PosNr = ht->ht_Subsongs[nr-1];
tune->songpos = PosNr;
ht->ht_PosJump = 0;
ht->ht_PatternBreak = 0;
ht->ht_NoteNr = 0;
ht->ht_PosJumpNote = 0;
ht->ht_Tempo = 6;
ht->ht_StepWaitFrames = 0;
ht->ht_GetNewPosition = 1;
ht->ht_SongEndReached = 0;
ht->ht_PlayingTime = 0;
for( i=0; i<MAX_CHANNELS; i+=4 )
{
ht->ht_Voices[i+0].vc_Pan = ht->ht_defpanleft;
ht->ht_Voices[i+0].vc_SetPan = ht->ht_defpanleft; // 1.4
ht->ht_Voices[i+0].vc_PanMultLeft = panning_left[ht->ht_defpanleft];
ht->ht_Voices[i+0].vc_PanMultRight = panning_right[ht->ht_defpanleft];
ht->ht_Voices[i+1].vc_Pan = ht->ht_defpanright;
ht->ht_Voices[i+1].vc_SetPan = ht->ht_defpanright; // 1.4
ht->ht_Voices[i+1].vc_PanMultLeft = panning_left[ht->ht_defpanright];
ht->ht_Voices[i+1].vc_PanMultRight = panning_right[ht->ht_defpanright];
ht->ht_Voices[i+2].vc_Pan = ht->ht_defpanright;
ht->ht_Voices[i+2].vc_SetPan = ht->ht_defpanright; // 1.4
ht->ht_Voices[i+2].vc_PanMultLeft = panning_left[ht->ht_defpanright];
ht->ht_Voices[i+2].vc_PanMultRight = panning_right[ht->ht_defpanright];
ht->ht_Voices[i+3].vc_Pan = ht->ht_defpanleft;
ht->ht_Voices[i+3].vc_SetPan = ht->ht_defpanleft; // 1.4
ht->ht_Voices[i+3].vc_PanMultLeft = panning_left[ht->ht_defpanleft];
ht->ht_Voices[i+3].vc_PanMultRight = panning_right[ht->ht_defpanleft];
}
hvl_reset_some_stuff( ht );
return TRUE;
}
void hvl_InitReplayer( void )
{
hvl_GenPanningTables();
hvl_GenSawtooth( &waves[WO_SAWTOOTH_04], 0x04 );
hvl_GenSawtooth( &waves[WO_SAWTOOTH_08], 0x08 );
hvl_GenSawtooth( &waves[WO_SAWTOOTH_10], 0x10 );
hvl_GenSawtooth( &waves[WO_SAWTOOTH_20], 0x20 );
hvl_GenSawtooth( &waves[WO_SAWTOOTH_40], 0x40 );
hvl_GenSawtooth( &waves[WO_SAWTOOTH_80], 0x80 );
hvl_GenTriangle( &waves[WO_TRIANGLE_04], 0x04 );
hvl_GenTriangle( &waves[WO_TRIANGLE_08], 0x08 );
hvl_GenTriangle( &waves[WO_TRIANGLE_10], 0x10 );
hvl_GenTriangle( &waves[WO_TRIANGLE_20], 0x20 );
hvl_GenTriangle( &waves[WO_TRIANGLE_40], 0x40 );
hvl_GenTriangle( &waves[WO_TRIANGLE_80], 0x80 );
hvl_GenSquare( &waves[WO_SQUARES] );
hvl_GenWhiteNoise( &waves[WO_WHITENOISE], WHITENOISELEN );
hvl_GenFilterWaves( &waves[WO_TRIANGLE_04], &waves[WO_LOWPASSES], &waves[WO_HIGHPASSES] );
}
struct hvl_tune *hvl_load_ahx( uint8 *buf, uint32 buflen, uint32 defstereo, uint32 freq )
{
uint8 *bptr;
TEXT *nptr;
uint32 i, j, k, l, posn, insn, ssn, hs, trkn, trkl;
struct hvl_tune *ht;
struct hvl_plsentry *ple;
int32 defgain[] = { 71, 72, 76, 85, 100 };
posn = ((buf[6]&0x0f)<<8)|buf[7];
insn = buf[12];
ssn = buf[13];
trkl = buf[10];
trkn = buf[11];
hs = sizeof( struct hvl_tune );
hs += sizeof( struct hvl_position ) * posn;
hs += sizeof( struct hvl_instrument ) * (insn+1);
hs += sizeof( uint16 ) * ssn;
// Calculate the size of all instrument PList buffers
bptr = &buf[14];
bptr += ssn*2; // Skip past the subsong list
bptr += posn*4*2; // Skip past the positions
bptr += trkn*trkl*3;
if((buf[6]&0x80)==0) bptr += trkl*3;
// *NOW* we can finally calculate PList space
for( i=1; i<=insn; i++ )
{
hs += bptr[21] * sizeof( struct hvl_plsentry );
bptr += 22 + bptr[21]*4;
}
ht = malloc( hs );
if( !ht )
{
free( buf );
printf( "Out of memory!\n" );
return NULL;
}
ht->ht_Frequency = freq;
ht->ht_FreqF = (float64)freq;
ht->ht_Positions = (struct hvl_position *)(&ht[1]);
ht->ht_Instruments = (struct hvl_instrument *)(&ht->ht_Positions[posn]);
ht->ht_Subsongs = (uint16 *)(&ht->ht_Instruments[(insn+1)]);
ple = (struct hvl_plsentry *)(&ht->ht_Subsongs[ssn]);
ht->ht_WaveformTab[0] = &waves[WO_TRIANGLE_04];
ht->ht_WaveformTab[1] = &waves[WO_SAWTOOTH_04];
ht->ht_WaveformTab[3] = &waves[WO_WHITENOISE];
ht->ht_Channels = 4;
ht->ht_PositionNr = posn;
ht->ht_Restart = (buf[8]<<8)|buf[9];
ht->ht_SpeedMultiplier = ((buf[6]>>5)&3)+1;
ht->ht_TrackLength = trkl;
ht->ht_TrackNr = trkn;
ht->ht_InstrumentNr = insn;
ht->ht_SubsongNr = ssn;
ht->ht_defstereo = defstereo;
ht->ht_defpanleft = stereopan_left[ht->ht_defstereo];
ht->ht_defpanright = stereopan_right[ht->ht_defstereo];
ht->ht_mixgain = (defgain[ht->ht_defstereo]*256)/100;
if( ht->ht_Restart >= ht->ht_PositionNr )
ht->ht_Restart = ht->ht_PositionNr-1;
// Do some validation
if( ( ht->ht_PositionNr > 1000 ) ||
( ht->ht_TrackLength > 64 ) ||
( ht->ht_InstrumentNr > 64 ) )
{
printf( "%d,%d,%d\n", ht->ht_PositionNr,
ht->ht_TrackLength,
ht->ht_InstrumentNr );
free( ht );
free( buf );
printf( "Invalid file.\n" );
return NULL;
}
strncpy( ht->ht_Name, (TEXT *)&buf[(buf[4]<<8)|buf[5]], 128 );
nptr = (TEXT *)&buf[((buf[4]<<8)|buf[5])+strlen( ht->ht_Name )+1];
bptr = &buf[14];
// Subsongs
for( i=0; i<ht->ht_SubsongNr; i++ )
{
ht->ht_Subsongs[i] = (bptr[0]<<8)|bptr[1];
if( ht->ht_Subsongs[i] >= ht->ht_PositionNr )
ht->ht_Subsongs[i] = 0;
bptr += 2;
}
// Position list
for( i=0; i<ht->ht_PositionNr; i++ )
{
for( j=0; j<4; j++ )
{
ht->ht_Positions[i].pos_Track[j] = *bptr++;
ht->ht_Positions[i].pos_Transpose[j] = *(int8 *)bptr++;
}
}
// Tracks
for( i=0; i<=ht->ht_TrackNr; i++ )
{
if( ( ( buf[6]&0x80 ) == 0x80 ) && ( i == 0 ) )
{
for( j=0; j<ht->ht_TrackLength; j++ )
{
ht->ht_Tracks[i][j].stp_Note = 0;
ht->ht_Tracks[i][j].stp_Instrument = 0;
ht->ht_Tracks[i][j].stp_FX = 0;
ht->ht_Tracks[i][j].stp_FXParam = 0;
ht->ht_Tracks[i][j].stp_FXb = 0;
ht->ht_Tracks[i][j].stp_FXbParam = 0;
}
continue;
}
for( j=0; j<ht->ht_TrackLength; j++ )
{
ht->ht_Tracks[i][j].stp_Note = (bptr[0]>>2)&0x3f;
ht->ht_Tracks[i][j].stp_Instrument = ((bptr[0]&0x3)<<4) | (bptr[1]>>4);
ht->ht_Tracks[i][j].stp_FX = bptr[1]&0xf;
ht->ht_Tracks[i][j].stp_FXParam = bptr[2];
ht->ht_Tracks[i][j].stp_FXb = 0;
ht->ht_Tracks[i][j].stp_FXbParam = 0;
bptr += 3;
}
}
// Instruments
for( i=1; i<=ht->ht_InstrumentNr; i++ )
{
if( nptr < (TEXT *)(buf+buflen) )
{
strncpy( ht->ht_Instruments[i].ins_Name, nptr, 128 );
nptr += strlen( nptr )+1;
} else {
ht->ht_Instruments[i].ins_Name[0] = 0;
}
ht->ht_Instruments[i].ins_Volume = bptr[0];
ht->ht_Instruments[i].ins_FilterSpeed = ((bptr[1]>>3)&0x1f)|((bptr[12]>>2)&0x20);
ht->ht_Instruments[i].ins_WaveLength = bptr[1]&0x07;
ht->ht_Instruments[i].ins_Envelope.aFrames = bptr[2];
ht->ht_Instruments[i].ins_Envelope.aVolume = bptr[3];
ht->ht_Instruments[i].ins_Envelope.dFrames = bptr[4];
ht->ht_Instruments[i].ins_Envelope.dVolume = bptr[5];
ht->ht_Instruments[i].ins_Envelope.sFrames = bptr[6];
ht->ht_Instruments[i].ins_Envelope.rFrames = bptr[7];
ht->ht_Instruments[i].ins_Envelope.rVolume = bptr[8];
ht->ht_Instruments[i].ins_FilterLowerLimit = bptr[12]&0x7f;
ht->ht_Instruments[i].ins_VibratoDelay = bptr[13];
ht->ht_Instruments[i].ins_HardCutReleaseFrames = (bptr[14]>>4)&0x07;
ht->ht_Instruments[i].ins_HardCutRelease = bptr[14]&0x80?1:0;
ht->ht_Instruments[i].ins_VibratoDepth = bptr[14]&0x0f;
ht->ht_Instruments[i].ins_VibratoSpeed = bptr[15];
ht->ht_Instruments[i].ins_SquareLowerLimit = bptr[16];
ht->ht_Instruments[i].ins_SquareUpperLimit = bptr[17];
ht->ht_Instruments[i].ins_SquareSpeed = bptr[18];
ht->ht_Instruments[i].ins_FilterUpperLimit = bptr[19]&0x3f;
ht->ht_Instruments[i].ins_PList.pls_Speed = bptr[20];
ht->ht_Instruments[i].ins_PList.pls_Length = bptr[21];
ht->ht_Instruments[i].ins_PList.pls_Entries = ple;
ple += bptr[21];
bptr += 22;
for( j=0; j<ht->ht_Instruments[i].ins_PList.pls_Length; j++ )
{
k = (bptr[0]>>5)&7;
if( k == 6 ) k = 12;
if( k == 7 ) k = 15;
l = (bptr[0]>>2)&7;
if( l == 6 ) l = 12;
if( l == 7 ) l = 15;
ht->ht_Instruments[i].ins_PList.pls_Entries[j].ple_FX[1] = k;
ht->ht_Instruments[i].ins_PList.pls_Entries[j].ple_FX[0] = l;
ht->ht_Instruments[i].ins_PList.pls_Entries[j].ple_Waveform = ((bptr[0]<<1)&6) | (bptr[1]>>7);
ht->ht_Instruments[i].ins_PList.pls_Entries[j].ple_Fixed = (bptr[1]>>6)&1;
ht->ht_Instruments[i].ins_PList.pls_Entries[j].ple_Note = bptr[1]&0x3f;
ht->ht_Instruments[i].ins_PList.pls_Entries[j].ple_FXParam[0] = bptr[2];
ht->ht_Instruments[i].ins_PList.pls_Entries[j].ple_FXParam[1] = bptr[3];
// 1.6: Strip "toggle filter" commands if the module is
// version 0 (pre-filters). This is what AHX also does.
if( ( buf[3] == 0 ) && ( l == 4 ) && ( (bptr[2]&0xf0) != 0 ) )
ht->ht_Instruments[i].ins_PList.pls_Entries[j].ple_FXParam[0] &= 0x0f;
if( ( buf[3] == 0 ) && ( k == 4 ) && ( (bptr[3]&0xf0) != 0 ) )
ht->ht_Instruments[i].ins_PList.pls_Entries[j].ple_FXParam[0] &= 0x0f;
bptr += 4;
}
}
//hvl_InitSubsong( ht, 0 );
free( buf );
return ht;
}
struct hvl_tune *hvl_LoadTune( TEXT *name, uint32 freq, uint32 defstereo )
{
struct hvl_tune *ht;
uint8 *buf, *bptr;
TEXT *nptr;
uint32 buflen, i, j, posn, insn, ssn, chnn, hs, trkl, trkn;
FILE *fh;
struct hvl_plsentry *ple;
fh = fopen( name, "rb" );
if( !fh )
{
printf( "Can't open file\n" );
return NULL;
}
fseek( fh, 0, SEEK_END );
buflen = ftell( fh );
fseek( fh, 0, SEEK_SET );
buf = malloc( buflen );
if( !buf )
{
fclose( fh );
printf( "Out of memory!\n" );
return NULL;
}
if( fread( buf, 1, buflen, fh ) != buflen )
{
fclose( fh );
free( buf );
printf( "Unable to read from file!\n" );
return NULL;
}
fclose( fh );
if( ( buf[0] == 'T' ) &&
( buf[1] == 'H' ) &&
( buf[2] == 'X' ) &&
( buf[3] < 3 ) )
return hvl_load_ahx( buf, buflen, defstereo, freq );
if( ( buf[0] != 'H' ) ||
( buf[1] != 'V' ) ||
( buf[2] != 'L' ) ||
( buf[3] > 1 ) )
{
free( buf );
printf( "Invalid file.\n" );
return NULL;
}
posn = ((buf[6]&0x0f)<<8)|buf[7];
insn = buf[12];
ssn = buf[13];
chnn = (buf[8]>>2)+4;
trkl = buf[10];
trkn = buf[11];
hs = sizeof( struct hvl_tune );
hs += sizeof( struct hvl_position ) * posn;
hs += sizeof( struct hvl_instrument ) * (insn+1);
hs += sizeof( uint16 ) * ssn;
// Calculate the size of all instrument PList buffers
bptr = &buf[16];
bptr += ssn*2; // Skip past the subsong list
bptr += posn*chnn*2; // Skip past the positions
// Skip past the tracks
// 1.4: Fixed two really stupid bugs that cancelled each other
// out if the module had a blank first track (which is how
// come they were missed.
for( i=((buf[6]&0x80)==0x80)?1:0; i<=trkn; i++ )
for( j=0; j<trkl; j++ )
{
if( bptr[0] == 0x3f )
{
bptr++;
continue;
}
bptr += 5;
}
// *NOW* we can finally calculate PList space
for( i=1; i<=insn; i++ )
{
hs += bptr[21] * sizeof( struct hvl_plsentry );
bptr += 22 + bptr[21]*5;
}
ht = malloc( hs );
if( !ht )
{
free( buf );
printf( "Out of memory!\n" );
return NULL;
}
ht->ht_Version = buf[3]; // 1.5
ht->ht_Frequency = freq;
ht->ht_FreqF = (float64)freq;
ht->ht_Positions = (struct hvl_position *)(&ht[1]);
ht->ht_Instruments = (struct hvl_instrument *)(&ht->ht_Positions[posn]);
ht->ht_Subsongs = (uint16 *)(&ht->ht_Instruments[(insn+1)]);
ple = (struct hvl_plsentry *)(&ht->ht_Subsongs[ssn]);
ht->ht_WaveformTab[0] = &waves[WO_TRIANGLE_04];
ht->ht_WaveformTab[1] = &waves[WO_SAWTOOTH_04];
ht->ht_WaveformTab[3] = &waves[WO_WHITENOISE];
ht->ht_PositionNr = posn;
ht->ht_Channels = (buf[8]>>2)+4;
ht->ht_Restart = ((buf[8]&3)<<8)|buf[9];
ht->ht_SpeedMultiplier = ((buf[6]>>5)&3)+1;
ht->ht_TrackLength = buf[10];
ht->ht_TrackNr = buf[11];
ht->ht_InstrumentNr = insn;
ht->ht_SubsongNr = ssn;
ht->ht_mixgain = (buf[14]<<8)/100;
ht->ht_defstereo = buf[15];
ht->ht_defpanleft = stereopan_left[ht->ht_defstereo];
ht->ht_defpanright = stereopan_right[ht->ht_defstereo];
if( ht->ht_Restart >= ht->ht_PositionNr )
ht->ht_Restart = ht->ht_PositionNr-1;
// Do some validation
if( ( ht->ht_PositionNr > 1000 ) ||
( ht->ht_TrackLength > 64 ) ||
( ht->ht_InstrumentNr > 64 ) )
{
printf( "%d,%d,%d\n", ht->ht_PositionNr,
ht->ht_TrackLength,
ht->ht_InstrumentNr );
free( ht );
free( buf );
printf( "Invalid file.\n" );
return NULL;
}
strncpy( ht->ht_Name, (TEXT *)&buf[(buf[4]<<8)|buf[5]], 128 );
nptr = (TEXT *)&buf[((buf[4]<<8)|buf[5])+strlen( ht->ht_Name )+1];
bptr = &buf[16];
// Subsongs
for( i=0; i<ht->ht_SubsongNr; i++ )
{
ht->ht_Subsongs[i] = (bptr[0]<<8)|bptr[1];
bptr += 2;
}
// Position list
for( i=0; i<ht->ht_PositionNr; i++ )
{
for( j=0; j<ht->ht_Channels; j++ )
{
ht->ht_Positions[i].pos_Track[j] = *bptr++;
ht->ht_Positions[i].pos_Transpose[j] = *(int8 *)bptr++;
}
}
// Tracks
for( i=0; i<=ht->ht_TrackNr; i++ )
{
if( ( ( buf[6]&0x80 ) == 0x80 ) && ( i == 0 ) )
{
for( j=0; j<ht->ht_TrackLength; j++ )
{
ht->ht_Tracks[i][j].stp_Note = 0;
ht->ht_Tracks[i][j].stp_Instrument = 0;
ht->ht_Tracks[i][j].stp_FX = 0;
ht->ht_Tracks[i][j].stp_FXParam = 0;
ht->ht_Tracks[i][j].stp_FXb = 0;
ht->ht_Tracks[i][j].stp_FXbParam = 0;
}
continue;
}
for( j=0; j<ht->ht_TrackLength; j++ )
{
if( bptr[0] == 0x3f )
{
ht->ht_Tracks[i][j].stp_Note = 0;
ht->ht_Tracks[i][j].stp_Instrument = 0;
ht->ht_Tracks[i][j].stp_FX = 0;
ht->ht_Tracks[i][j].stp_FXParam = 0;
ht->ht_Tracks[i][j].stp_FXb = 0;
ht->ht_Tracks[i][j].stp_FXbParam = 0;
bptr++;
continue;
}
ht->ht_Tracks[i][j].stp_Note = bptr[0];
ht->ht_Tracks[i][j].stp_Instrument = bptr[1];
ht->ht_Tracks[i][j].stp_FX = bptr[2]>>4;
ht->ht_Tracks[i][j].stp_FXParam = bptr[3];
ht->ht_Tracks[i][j].stp_FXb = bptr[2]&0xf;
ht->ht_Tracks[i][j].stp_FXbParam = bptr[4];
bptr += 5;
}
}
// Instruments
for( i=1; i<=ht->ht_InstrumentNr; i++ )
{
if( nptr < (TEXT *)(buf+buflen) )
{
strncpy( ht->ht_Instruments[i].ins_Name, nptr, 128 );
nptr += strlen( nptr )+1;
} else {
ht->ht_Instruments[i].ins_Name[0] = 0;
}
ht->ht_Instruments[i].ins_Volume = bptr[0];
ht->ht_Instruments[i].ins_FilterSpeed = ((bptr[1]>>3)&0x1f)|((bptr[12]>>2)&0x20);
ht->ht_Instruments[i].ins_WaveLength = bptr[1]&0x07;
ht->ht_Instruments[i].ins_Envelope.aFrames = bptr[2];
ht->ht_Instruments[i].ins_Envelope.aVolume = bptr[3];
ht->ht_Instruments[i].ins_Envelope.dFrames = bptr[4];
ht->ht_Instruments[i].ins_Envelope.dVolume = bptr[5];
ht->ht_Instruments[i].ins_Envelope.sFrames = bptr[6];
ht->ht_Instruments[i].ins_Envelope.rFrames = bptr[7];
ht->ht_Instruments[i].ins_Envelope.rVolume = bptr[8];
ht->ht_Instruments[i].ins_FilterLowerLimit = bptr[12]&0x7f;
ht->ht_Instruments[i].ins_VibratoDelay = bptr[13];
ht->ht_Instruments[i].ins_HardCutReleaseFrames = (bptr[14]>>4)&0x07;
ht->ht_Instruments[i].ins_HardCutRelease = bptr[14]&0x80?1:0;
ht->ht_Instruments[i].ins_VibratoDepth = bptr[14]&0x0f;
ht->ht_Instruments[i].ins_VibratoSpeed = bptr[15];
ht->ht_Instruments[i].ins_SquareLowerLimit = bptr[16];
ht->ht_Instruments[i].ins_SquareUpperLimit = bptr[17];
ht->ht_Instruments[i].ins_SquareSpeed = bptr[18];
ht->ht_Instruments[i].ins_FilterUpperLimit = bptr[19]&0x3f;
ht->ht_Instruments[i].ins_PList.pls_Speed = bptr[20];
ht->ht_Instruments[i].ins_PList.pls_Length = bptr[21];
ht->ht_Instruments[i].ins_PList.pls_Entries = ple;
ple += bptr[21];
bptr += 22;
for( j=0; j<ht->ht_Instruments[i].ins_PList.pls_Length; j++ )
{
ht->ht_Instruments[i].ins_PList.pls_Entries[j].ple_FX[0] = bptr[0]&0xf;
ht->ht_Instruments[i].ins_PList.pls_Entries[j].ple_FX[1] = (bptr[1]>>3)&0xf;
ht->ht_Instruments[i].ins_PList.pls_Entries[j].ple_Waveform = bptr[1]&7;
ht->ht_Instruments[i].ins_PList.pls_Entries[j].ple_Fixed = (bptr[2]>>6)&1;
ht->ht_Instruments[i].ins_PList.pls_Entries[j].ple_Note = bptr[2]&0x3f;
ht->ht_Instruments[i].ins_PList.pls_Entries[j].ple_FXParam[0] = bptr[3];
ht->ht_Instruments[i].ins_PList.pls_Entries[j].ple_FXParam[1] = bptr[4];
bptr += 5;
}
}
//hvl_InitSubsong( ht, 0 );
free( buf );
return ht;
}
void hvl_FreeTune( struct hvl_tune *ht )
{
if( !ht ) return;
free( ht );
}
void hvl_process_stepfx_1( struct hvl_tune *ht, struct hvl_voice *voice, int32 FX, int32 FXParam )
{
switch( FX )
{
case 0x0: // Position Jump HI
if( ((FXParam&0x0f) > 0) && ((FXParam&0x0f) <= 9) )
ht->ht_PosJump = FXParam & 0xf;
break;
case 0x5: // Volume Slide + Tone Portamento
case 0xa: // Volume Slide
voice->vc_VolumeSlideDown = FXParam & 0x0f;
voice->vc_VolumeSlideUp = FXParam >> 4;
break;
case 0x7: // Panning
if( FXParam > 127 )
FXParam -= 256;
voice->vc_Pan = (FXParam+128);
voice->vc_SetPan = (FXParam+128); // 1.4
voice->vc_PanMultLeft = panning_left[voice->vc_Pan];
voice->vc_PanMultRight = panning_right[voice->vc_Pan];
break;
case 0xb: // Position jump
ht->ht_PosJump = ht->ht_PosJump*100 + (FXParam & 0x0f) + (FXParam >> 4)*10;
ht->ht_PatternBreak = 1;
if( ht->ht_PosJump <= tune->songpos )
ht->ht_SongEndReached = 1;
break;
case 0xd: // Pattern break
ht->ht_PosJump = tune->songpos+1;
ht->ht_PosJumpNote = (FXParam & 0x0f) + (FXParam>>4)*10;
ht->ht_PatternBreak = 1;
if( ht->ht_PosJumpNote > ht->ht_TrackLength )
ht->ht_PosJumpNote = 0;
break;
case 0xe: // Extended commands
switch( FXParam >> 4 )
{
case 0xc: // Note cut
if( (FXParam & 0x0f) < ht->ht_Tempo )
{
voice->vc_NoteCutWait = FXParam & 0x0f;
if( voice->vc_NoteCutWait )
{
voice->vc_NoteCutOn = 1;
voice->vc_HardCutRelease = 0;
}
}
break;
// 1.6: 0xd case removed
}
break;
case 0xf: // Speed
ht->ht_Tempo = FXParam;
if( FXParam == 0 )
ht->ht_SongEndReached = 1;
break;
}
}
void hvl_process_stepfx_2( struct hvl_tune *ht, struct hvl_voice *voice, int32 FX, int32 FXParam, int32 *Note )
{
switch( FX )
{
case 0x9: // Set squarewave offset
voice->vc_SquarePos = FXParam >> (5 - voice->vc_WaveLength);
voice->vc_PlantSquare = 1;
voice->vc_IgnoreSquare = 1;
break;
case 0x5: // Tone portamento + volume slide
case 0x3: // Tone portamento
if( FXParam != 0 ) voice->vc_PeriodSlideSpeed = FXParam;
if( *Note )
{
int32 new, diff;
new = period_tab[*Note];
diff = period_tab[voice->vc_TrackPeriod];
diff -= new;
new = diff + voice->vc_PeriodSlidePeriod;
if( new )
voice->vc_PeriodSlideLimit = -diff;
}
voice->vc_PeriodSlideOn = 1;
voice->vc_PeriodSlideWithLimit = 1;
*Note = 0;
break;
}
}
void hvl_process_stepfx_3( struct hvl_tune *ht, struct hvl_voice *voice, int32 FX, int32 FXParam )
{
int32 i;
switch( FX )
{
case 0x01: // Portamento up (period slide down)
voice->vc_PeriodSlideSpeed = -FXParam;
voice->vc_PeriodSlideOn = 1;
voice->vc_PeriodSlideWithLimit = 0;
break;
case 0x02: // Portamento down
voice->vc_PeriodSlideSpeed = FXParam;
voice->vc_PeriodSlideOn = 1;
voice->vc_PeriodSlideWithLimit = 0;
break;
case 0x04: // Filter override
if( ( FXParam == 0 ) || ( FXParam == 0x40 ) ) break;
if( FXParam < 0x40 )
{
voice->vc_IgnoreFilter = FXParam;
break;
}
if( FXParam > 0x7f ) break;
voice->vc_FilterPos = FXParam - 0x40;
break;
case 0x0c: // Volume
FXParam &= 0xff;
if( FXParam <= 0x40 )
{
voice->vc_NoteMaxVolume = FXParam;
break;
}
if( (FXParam -= 0x50) < 0 ) break; // 1.6
if( FXParam <= 0x40 )
{
for( i=0; i<ht->ht_Channels; i++ )
ht->ht_Voices[i].vc_TrackMasterVolume = FXParam;
break;
}
if( (FXParam -= 0xa0-0x50) < 0 ) break; // 1.6
if( FXParam <= 0x40 )
voice->vc_TrackMasterVolume = FXParam;
break;
case 0xe: // Extended commands;
switch( FXParam >> 4 )
{
case 0x1: // Fineslide up
voice->vc_PeriodSlidePeriod = -(FXParam & 0x0f);
voice->vc_PlantPeriod = 1;
break;
case 0x2: // Fineslide down
voice->vc_PeriodSlidePeriod = (FXParam & 0x0f);