void process_fx(struct context_data *ctx, struct channel_data *xc, int chn,
uint8 note, uint8 fxt, uint8 fxp, int fnum)
{
struct player_data *p = &ctx->p;
struct module_data *m = &ctx->m;
struct xmp_module *mod = &m->mod;
struct flow_control *f = &p->flow;
int h, l;
switch (fxt) {
case FX_ARPEGGIO:
fx_arpeggio:
if (fxp != 0) {
xc->arpeggio.val[0] = 0;
xc->arpeggio.val[1] = MSN(fxp);
xc->arpeggio.val[2] = LSN(fxp);
xc->arpeggio.size = 3;
}
break;
case FX_S3M_ARPEGGIO:
EFFECT_MEMORY(fxp, xc->arpeggio.memory);
goto fx_arpeggio;
#ifndef LIBXMP_CORE_PLAYER
case FX_OKT_ARP3:
if (fxp != 0) {
xc->arpeggio.val[0] = -MSN(fxp);
xc->arpeggio.val[1] = 0;
xc->arpeggio.val[2] = LSN(fxp);
xc->arpeggio.size = 3;
}
break;
case FX_OKT_ARP4:
if (fxp != 0) {
xc->arpeggio.val[0] = 0;
xc->arpeggio.val[1] = LSN(fxp);
xc->arpeggio.val[2] = 0;
xc->arpeggio.val[3] = -MSN(fxp);
xc->arpeggio.size = 4;
}
break;
case FX_OKT_ARP5:
if (fxp != 0) {
xc->arpeggio.val[0] = LSN(fxp);
xc->arpeggio.val[1] = LSN(fxp);
xc->arpeggio.val[2] = 0;
xc->arpeggio.size = 3;
}
break;
#endif
case FX_PORTA_UP: /* Portamento up */
EFFECT_MEMORY(fxp, xc->freq.memory);
if (HAS_QUIRK(QUIRK_FINEFX)
&& (fnum == 0 || !HAS_QUIRK(QUIRK_ITVPOR))) {
switch (MSN(fxp)) {
case 0xf:
fxp &= 0x0f;
goto fx_f_porta_up;
case 0xe:
fxp &= 0x0f;
fxp |= 0x10;
goto fx_xf_porta;
}
}
SET(PITCHBEND);
if (fxp != 0) {
xc->freq.slide = -fxp;
if (HAS_QUIRK(QUIRK_UNISLD))
xc->porta.memory = fxp;
} else if (xc->freq.slide > 0) {
xc->freq.slide *= -1;
}
break;
case FX_PORTA_DN: /* Portamento down */
EFFECT_MEMORY(fxp, xc->freq.memory);
if (HAS_QUIRK(QUIRK_FINEFX)
&& (fnum == 0 || !HAS_QUIRK(QUIRK_ITVPOR))) {
switch (MSN(fxp)) {
case 0xf:
fxp &= 0x0f;
goto fx_f_porta_dn;
case 0xe:
fxp &= 0x0f;
fxp |= 0x20;
goto fx_xf_porta;
}
}
SET(PITCHBEND);
if (fxp != 0) {
xc->freq.slide = fxp;
if (HAS_QUIRK(QUIRK_UNISLD))
xc->porta.memory = fxp;
} else if (xc->freq.slide < 0) {
xc->freq.slide *= -1;
}
break;
case FX_TONEPORTA: /* Tone portamento */
if (HAS_QUIRK(QUIRK_IGSTPOR)) {
if (note == 0 && xc->porta.dir == 0)
break;
}
if (!IS_VALID_INSTRUMENT(xc->ins))
break;
do_toneporta(m, xc, note);
EFFECT_MEMORY_SETONLY(fxp, xc->porta.memory);
if (fxp != 0) {
if (HAS_QUIRK(QUIRK_UNISLD)) /* IT compatible Gxx off */
xc->freq.memory = fxp;
xc->porta.slide = fxp;
}
SET(TONEPORTA);
break;
case FX_VIBRATO: /* Vibrato */
EFFECT_MEMORY_SETONLY(fxp, xc->vibrato.memory);
SET(VIBRATO);
SET_LFO_NOTZERO(&xc->vibrato.lfo, LSN(fxp) << 2, MSN(fxp));
break;
case FX_FINE_VIBRATO: /* Fine vibrato */
EFFECT_MEMORY_SETONLY(fxp, xc->vibrato.memory);
SET(VIBRATO);
SET_LFO_NOTZERO(&xc->vibrato.lfo, LSN(fxp), MSN(fxp));
break;
case FX_TONE_VSLIDE: /* Toneporta + vol slide */
if (!IS_VALID_INSTRUMENT(xc->ins))
break;
do_toneporta(m, xc, note);
SET(TONEPORTA);
goto fx_volslide;
case FX_VIBRA_VSLIDE: /* Vibrato + vol slide */
SET(VIBRATO);
goto fx_volslide;
case FX_TREMOLO: /* Tremolo */
EFFECT_MEMORY_SETONLY(fxp, xc->tremolo.memory);
SET(TREMOLO);
SET_LFO_NOTZERO(&xc->tremolo.lfo, LSN(fxp), MSN(fxp));
break;
case FX_SETPAN: /* Set pan */
xc->pan.val = fxp;
break;
case FX_OFFSET: /* Set sample offset */
SET(OFFSET);
if (fxp) {
xc->offset_val = xc->offset = fxp << 8;
} else {
xc->offset_val = xc->offset;
}
break;
case FX_VOLSLIDE: /* Volume slide */
fx_volslide:
/* S3M file volume slide note:
* DFy Fine volume down by y (...) If y is 0, the command will
* be treated as a volume slide up with a value of f (15).
* If a DFF command is specified, the volume will be slid
* up.
*/
if (HAS_QUIRK(QUIRK_FINEFX)) {
h = MSN(fxp);
l = LSN(fxp);
if (l == 0xf && h != 0) {
xc->vol.memory = fxp;
fxp >>= 4;
goto fx_f_vslide_up;
} else if (h == 0xf && l != 0) {
xc->vol.memory = fxp;
fxp &= 0x0f;
goto fx_f_vslide_dn;
}
}
void process_fx(struct context_data *ctx, struct channel_data *xc, int chn,
struct xmp_event *e, int fnum)
{
struct player_data *p = &ctx->p;
struct module_data *m = &ctx->m;
struct xmp_module *mod = &m->mod;
struct flow_control *f = &p->flow;
uint8 note, fxp, fxt;
int h, l;
/* key_porta is IT only */
if (m->read_event_type != READ_EVENT_IT) {
xc->key_porta = xc->key;
}
note = e->note;
if (fnum == 0) {
fxt = e->fxt;
fxp = e->fxp;
} else {
fxt = e->f2t;
fxp = e->f2p;
}
switch (fxt) {
case FX_ARPEGGIO:
fx_arpeggio:
if (fxp != 0) {
xc->arpeggio.val[0] = 0;
xc->arpeggio.val[1] = MSN(fxp);
xc->arpeggio.val[2] = LSN(fxp);
xc->arpeggio.size = 3;
}
break;
case FX_S3M_ARPEGGIO:
EFFECT_MEMORY(fxp, xc->arpeggio.memory);
goto fx_arpeggio;
#ifndef LIBXMP_CORE_PLAYER
case FX_OKT_ARP3:
if (fxp != 0) {
xc->arpeggio.val[0] = -MSN(fxp);
xc->arpeggio.val[1] = 0;
xc->arpeggio.val[2] = LSN(fxp);
xc->arpeggio.size = 3;
}
break;
case FX_OKT_ARP4:
if (fxp != 0) {
xc->arpeggio.val[0] = 0;
xc->arpeggio.val[1] = LSN(fxp);
xc->arpeggio.val[2] = 0;
xc->arpeggio.val[3] = -MSN(fxp);
xc->arpeggio.size = 4;
}
break;
case FX_OKT_ARP5:
if (fxp != 0) {
xc->arpeggio.val[0] = LSN(fxp);
xc->arpeggio.val[1] = LSN(fxp);
xc->arpeggio.val[2] = 0;
xc->arpeggio.size = 3;
}
break;
#endif
case FX_PORTA_UP: /* Portamento up */
EFFECT_MEMORY(fxp, xc->freq.memory);
if (HAS_QUIRK(QUIRK_FINEFX)
&& (fnum == 0 || !HAS_QUIRK(QUIRK_ITVPOR))) {
switch (MSN(fxp)) {
case 0xf:
fxp &= 0x0f;
goto fx_f_porta_up;
case 0xe:
fxp &= 0x0f;
fxp |= 0x10;
goto fx_xf_porta;
}
}
SET(PITCHBEND);
if (fxp != 0) {
xc->freq.slide = -fxp;
if (HAS_QUIRK(QUIRK_UNISLD))
xc->porta.memory = fxp;
} else if (xc->freq.slide > 0) {
xc->freq.slide *= -1;
}
break;
case FX_PORTA_DN: /* Portamento down */
EFFECT_MEMORY(fxp, xc->freq.memory);
if (HAS_QUIRK(QUIRK_FINEFX)
&& (fnum == 0 || !HAS_QUIRK(QUIRK_ITVPOR))) {
switch (MSN(fxp)) {
case 0xf:
fxp &= 0x0f;
goto fx_f_porta_dn;
case 0xe:
fxp &= 0x0f;
fxp |= 0x20;
goto fx_xf_porta;
}
}
SET(PITCHBEND);
if (fxp != 0) {
xc->freq.slide = fxp;
if (HAS_QUIRK(QUIRK_UNISLD))
xc->porta.memory = fxp;
} else if (xc->freq.slide < 0) {
xc->freq.slide *= -1;
}
break;
case FX_TONEPORTA: /* Tone portamento */
if (HAS_QUIRK(QUIRK_IGSTPOR)) {
if (note == 0 && xc->porta.dir == 0)
break;
}
if (!IS_VALID_INSTRUMENT(xc->ins))
break;
do_toneporta(m, xc, note);
EFFECT_MEMORY_SETONLY(fxp, xc->porta.memory);
if (fxp != 0) {
if (HAS_QUIRK(QUIRK_UNISLD)) /* IT compatible Gxx off */
xc->freq.memory = fxp;
xc->porta.slide = fxp;
}
SET(TONEPORTA);
break;
case FX_VIBRATO: /* Vibrato */
EFFECT_MEMORY_SETONLY(fxp, xc->vibrato.memory);
SET(VIBRATO);
SET_LFO_NOTZERO(&xc->vibrato.lfo, LSN(fxp) << 2, MSN(fxp));
break;
case FX_FINE_VIBRATO: /* Fine vibrato */
EFFECT_MEMORY_SETONLY(fxp, xc->vibrato.memory);
SET(VIBRATO);
SET_LFO_NOTZERO(&xc->vibrato.lfo, LSN(fxp), MSN(fxp));
break;
case FX_TONE_VSLIDE: /* Toneporta + vol slide */
if (!IS_VALID_INSTRUMENT(xc->ins))
break;
do_toneporta(m, xc, note);
SET(TONEPORTA);
goto fx_volslide;
case FX_VIBRA_VSLIDE: /* Vibrato + vol slide */
SET(VIBRATO);
goto fx_volslide;
case FX_TREMOLO: /* Tremolo */
EFFECT_MEMORY_SETONLY(fxp, xc->tremolo.memory);
SET(TREMOLO);
SET_LFO_NOTZERO(&xc->tremolo.lfo, LSN(fxp), MSN(fxp));
break;
case FX_SETPAN: /* Set pan */
/* From OpenMPT PanOff.xm:
* "Another chapter of weird FT2 bugs: Note-Off + Note Delay
* + Volume Column Panning = Panning effect is ignored."
*/
if (!HAS_QUIRK(QUIRK_FT2BUGS) /* If not FT2 */
|| fnum == 0 /* or not vol column */
|| e->note != XMP_KEY_OFF /* or not keyoff */
|| e->fxt != FX_EXTENDED /* or not delay */
|| MSN(e->fxp) != EX_DELAY) {
xc->pan.val = fxp;
xc->pan.surround = 0;
}
break;
case FX_OFFSET: /* Set sample offset */
EFFECT_MEMORY(fxp, xc->offset.memory);
SET(OFFSET);
if (note) {
xc->offset.val &= xc->offset.val & ~0xffff;
xc->offset.val |= fxp << 8;
xc->offset.val2 = fxp << 8;
}
if (e->ins) {
xc->offset.val2 = fxp << 8;
}
break;
case FX_VOLSLIDE: /* Volume slide */
fx_volslide:
/* S3M file volume slide note:
* DFy Fine volume down by y (...) If y is 0, the command will
* be treated as a volume slide up with a value of f (15).
* If a DFF command is specified, the volume will be slid
* up.
*/
if (HAS_QUIRK(QUIRK_FINEFX)) {
h = MSN(fxp);
l = LSN(fxp);
if (l == 0xf && h != 0) {
xc->vol.memory = fxp;
fxp >>= 4;
goto fx_f_vslide_up;
} else if (h == 0xf && l != 0) {
xc->vol.memory = fxp;
fxp &= 0x0f;
goto fx_f_vslide_dn;
}
}