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deco.c
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/*
* Decoration handling.
*
* This file is part of abcm2ps.
*
* Copyright (C) 2000-2014, Jean-François Moine.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
*/
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <math.h>
#ifdef WIN32
#define lroundf(x) ((long) ((x) + 0.5))
#endif
#include "abc2ps.h"
int defl; /* decoration flags */
static struct deco_elt {
struct deco_elt *next, *prev; /* next/previous decoration */
struct SYMBOL *s; /* symbol */
struct deco_elt *start; /* start a long decoration ending here */
unsigned char t; /* decoration index */
unsigned char staff; /* staff */
unsigned char flags;
#define DE_VAL 0x01 /* put extra value if 1 */
#define DE_UP 0x02 /* above the staff */
#define DE_BELOW 0x08 /* below the staff */
#define DE_GRACE 0x10 /* in grace note */
#define DE_INV 0x20 /* invert the glyph */
#define DE_LDST 0x40 /* start of long decoration */
#define DE_LDEN 0x80 /* end of long decoration */
unsigned char defl; /* decorations flags - see DEF_xx */
float x, y; /* x, y */
float v; /* extra value */
char *str; /* string / 0 */
} *deco_head, *deco_tail;
typedef void draw_f(struct deco_elt *de);
static draw_f d_arp, d_cresc, d_near, d_slide, d_upstaff, d_pf, d_trill;
/* decoration table */
/* !! don't change the order of the numbered items !! */
static struct deco_def_s {
char *name;
unsigned char func; /* function index */
signed char ps_func; /* postscript function index */
unsigned char h; /* height */
unsigned char wl; /* width */
unsigned char wr;
unsigned char strx; /* string index - 255=deco name */
unsigned char ld_end; /* index of end of long decoration */
unsigned char dum;
} deco_def_tb[128];
/* c function table */
static draw_f *func_tb[] = {
d_near, /* 0 - near the note */
d_slide, /* 1 */
d_arp, /* 2 */
d_upstaff, /* 3 - tied to note */
d_upstaff, /* 4 (below the staff) */
d_trill, /* 5 */
d_pf, /* 6 - tied to staff (dynamic marks) */
d_cresc, /* 7 */
};
/* postscript function table */
static char *ps_func_tb[128];
static char *str_tb[32];
/* standard decorations */
static char *std_deco_tb[] = {
"dot 0 stc 5 1 1",
"roll 3 cpu 10 6 6",
"fermata 3 hld 12 7 7",
"emphasis 3 accent 6 4 4",
"lowermordent 3 lmrd 10 2 2",
"coda 3 coda 24 10 10",
"uppermordent 3 umrd 10 2 2",
"segno 3 sgno 20 4 4",
"trill 3 trl 11 4 4",
"upbow 3 upb 10 5 5",
"downbow 3 dnb 9 5 5",
"gmark 3 grm 6 5 5",
"slide 1 sld 3 7 0",
"tenuto 0 emb 5 2 2",
"breath 3 brth 0 1 20",
"longphrase 3 lphr 0 1 1",
"mediumphrase 3 mphr 0 1 1",
"shortphrase 3 sphr 0 1 1",
"invertedfermata 3 hld 12 7 7",
"invertedturn 3 turn 10 0 5",
"invertedturnx 3 turnx 10 0 5",
"0 3 fng 8 3 3 0",
"1 3 fng 8 3 3 1",
"2 3 fng 8 3 3 2",
"3 3 fng 8 3 3 3",
"4 3 fng 8 3 3 4",
"5 3 fng 8 3 3 5",
"plus 3 dplus 7 3 3",
"+ 3 dplus 7 3 3",
"accent 3 accent 8 4 4",
"> 3 accent 8 4 4",
"D.C. 3 dacs 16 10 10 D.C.",
"D.S. 3 dacs 16 10 10 D.S.",
"fine 3 dacs 16 10 10 FINE",
"f 6 pf 18 1 7",
"ff 6 pf 18 2 10",
"fff 6 pf 18 4 13",
"ffff 6 pf 18 6 16",
"mf 6 pf 18 6 13",
"mp 6 pf 18 6 16",
"mordent 3 lmrd 10 2 2",
"open 3 opend 10 2 2",
"p 6 pf 18 2 8",
"pp 6 pf 18 5 14",
"ppp 6 pf 18 8 20",
"pppp 6 pf 18 10 25",
"pralltriller 3 umrd 10 2 2",
"sfz 6 sfz 18 4 10",
"turn 3 turn 10 0 5",
"wedge 3 wedge 8 1 1",
"turnx 3 turnx 10 0 5",
"trill( 5 - 8 0 0",
"trill) 5 ltr 8 0 0",
"snap 3 snap 14 3 3",
"thumb 3 thumb 14 2 2",
"arpeggio 2 arp 12 10 0",
"crescendo( 7 - 18 0 0",
"crescendo) 7 cresc 18 0 0",
"<( 7 - 18 0 0",
"<) 7 cresc 18 0 0",
"diminuendo( 7 - 18 0 0",
"diminuendo) 7 dim 18 0 0",
">( 7 - 18 0 0",
">) 7 dim 18 0 0",
"invisible 32 0 0 0 0",
"beamon 33 0 0 0 0",
"trem1 34 0 0 0 0",
"trem2 34 0 0 0 0",
"trem3 34 0 0 0 0",
"trem4 34 0 0 0 0",
"xstem 35 0 0 0 0",
"beambr1 36 0 0 0 0",
"beambr2 36 0 0 0 0",
"rbstop 37 0 0 0 0",
"/ 38 0 0 6 6",
"// 38 0 0 6 6",
"/// 38 0 0 6 6",
"beam-accel 39 0 0 0 0",
"beam-rall 39 0 0 0 0",
0
};
/* user decorations */
static struct u_deco {
struct u_deco *next;
char text[2];
} *user_deco;
static struct SYMBOL *first_note; /* first note/rest of the line */
static void draw_gchord(struct SYMBOL *s, float gchy_min, float gchy_max);
/* -- get the max/min vertical offset -- */
float y_get(int staff,
int up,
float x,
float w)
{
struct STAFF_S *p_staff;
int i, j;
float y;
p_staff = &staff_tb[staff];
i = (int) (x / realwidth * YSTEP);
if (i < 0) {
// fprintf(stderr, "y_get i:%d\n", i);
i = 0;
}
j = (int) ((x + w) / realwidth * YSTEP);
if (j >= YSTEP) {
j = YSTEP - 1;
if (i > j)
i = j;
}
if (up) {
y = p_staff->top[i++];
while (i <= j) {
if (y < p_staff->top[i])
y = p_staff->top[i];
i++;
}
} else {
y = p_staff->bot[i++];
while (i <= j) {
if (y > p_staff->bot[i])
y = p_staff->bot[i];
i++;
}
}
return y;
}
/* -- adjust the vertical offsets -- */
void y_set(int staff,
int up,
float x,
float w,
float y)
{
struct STAFF_S *p_staff;
int i, j;
p_staff = &staff_tb[staff];
i = (int) (x / realwidth * YSTEP);
/* (may occur when annotation on 'y' at start of an empty staff) */
if (i < 0) {
// fprintf(stderr, "y_set i:%d\n", i);
i = 0;
}
j = (int) ((x + w) / realwidth * YSTEP);
if (j >= YSTEP) {
j = YSTEP - 1;
if (i > j)
i = j;
}
if (up) {
while (i <= j) {
if (p_staff->top[i] < y)
p_staff->top[i] = y;
i++;
}
} else {
while (i <= j) {
if (p_staff->bot[i] > y)
p_staff->bot[i] = y;
i++;
}
}
}
/* -- get the staff position of the dynamic and volume marks -- */
static int up_p(struct SYMBOL *s, int pos)
{
switch (pos) {
case SL_ABOVE:
return 1;
case SL_BELOW:
return 0;
}
if (s->multi != 0)
return s->multi > 0;
if (!voice_tb[s->voice].have_ly)
return 0;
/* above if the lyrics are below the staff */
return s->posit.voc != SL_ABOVE;
}
/* -- drawing functions -- */
/* special case for arpeggio */
static void d_arp(struct deco_elt *de)
{
struct SYMBOL *s;
struct deco_def_s *dd;
int m, h;
float xc, dx;
s = de->s;
dd = &deco_def_tb[de->t];
xc = 0;
for (m = 0; m <= s->nhd; m++) {
if (s->as.u.note.accs[m])
dx = 5 + s->shac[m];
else {
dx = 6 - s->shhd[m];
switch (s->head) {
case H_SQUARE:
case H_OVAL:
dx += 2.5;
break;
}
}
if (dx > xc)
xc = dx;
}
h = 3 * (s->pits[s->nhd] - s->pits[0]) + 4;
m = dd->h; /* minimum height */
if (h < m)
h = m;
de->flags |= DE_VAL;
de->v = h;
de->x = s->x - xc;
de->y = (float) (3 * (s->pits[0] - 18)) - 3;
}
/* special case for crescendo/diminuendo */
static void d_cresc(struct deco_elt *de)
{
struct SYMBOL *s, *s2;
struct deco_def_s *dd, *dd2;
struct deco_elt *de1;
int up;
float x, dx, x2;
if (de->flags & DE_LDST)
return;
s2 = de->s;
de1 = de->start; /* start of the deco */
if (de1) {
s = de1->s;
x = s->x + 3;
} else { /* end without start */
s = first_note;
x = s->x - s->wl - 4;
}
de->staff = s2->staff;
de->flags &= ~DE_LDEN; /* old behaviour */
de->flags |= DE_VAL;
up = up_p(s2, s2->posit.dyn);
if (up)
de->flags |= DE_UP;
/* shift the starting point if any dynamic mark on the left */
if (de1 && de1->prev && de1->prev->s == s
&& ((de->flags ^ de1->prev->flags) & DE_UP) == 0) {
dd2 = &deco_def_tb[de1->prev->t];
if (dd2->func >= 6) {
x2 = de1->prev->x + de1->prev->v + 4;
if (x2 > x)
x = x2;
}
}
if (de->defl & DEF_NOEN) { /* if no decoration end */
dx = de->x - x;
if (dx < 20) {
x = de->x - 20 - 3;
dx = 20;
}
} else {
x2 = s2->x;
if (de->next && de->next->s == s
&& ((de->flags ^ de->next->flags) & DE_UP) == 0) {
dd2 = &deco_def_tb[de->next->t];
if (dd2->func >= 6) /* if dynamic mark */
x2 -= 5;
}
dx = x2 - x - 4;
if (dx < 20) {
x -= (20 - dx) * 0.5;
if (de->start == 0)
x -= (20 - dx) * 0.5;
dx = 20;
}
}
de->v = dx;
de->x = x;
dd = &deco_def_tb[de->t];
de->y = y_get(de->staff, up, x, dx);
if (!up)
de->y -= dd->h;
/* (y_set is done later in draw_deco_staff) */
}
/* near the note (dot, tenuto) */
static void d_near(struct deco_elt *de)
{
struct SYMBOL *s;
struct deco_def_s *dd;
int y, up;
s = de->s;
dd = &deco_def_tb[de->t];
if (s->multi)
up = s->multi > 0;
else
up = s->stem < 0;
if (up)
y = s->ymx;
else
y = s->ymn - dd->h;
if (y > -6 && y < 24) {
if (up)
y += 3;
y = (y + 6) / 6 * 6 - 6; /* between lines */
}
if (up)
s->ymx = y + dd->h;
else
s->ymn = y;
de->y = (float) y;
de->x = s->x + s->shhd[s->stem >= 0 ? 0 : s->nhd];
if (dd->name[0] == 'd' /* if dot decoration */
&& s->nflags >= -1) { /* on stem */
if (up) {
if (s->stem > 0)
de->x += STEM_XOFF;
} else {
if (s->stem < 0)
de->x -= STEM_XOFF;
}
}
}
/* special case for piano/forte indications */
static void d_pf(struct deco_elt *de)
{
struct SYMBOL *s;
struct deco_def_s *dd, *dd2;
float x, x2;
char *str;
int up;
s = de->s;
dd = &deco_def_tb[de->t];
de->v = dd->wl + dd->wr;
up = up_p(s, s->posit.vol);
if (up)
de->flags |= DE_UP;
x = s->x - dd->wl;
if (de->prev && de->prev->s == s
&& ((de->flags ^ de->prev->flags) & DE_UP) == 0) {
dd2 = &deco_def_tb[de->prev->t];
if (dd2->func >= 6) { /* if dynamic mark */
x2 = de->prev->x + de->prev->v + 4;
if (x2 > x)
x = x2;
}
#if 0
//fixme:test volume shift
// does not work with
// cE!p!E !fff!Ceg|
} else if (!up && s->stem < 0 && s->ymn < 10) {
float y;
x2 = x - (STEM_XOFF + dd->wr + 4);
y = y_get(s->staff, up, x2, de->v);
if (y > s->ymn) {
x = x2;
} else {
x2 -= 3;
y = y_get(s->staff, up, x2, de->v);
if (y > s->ymn)
x = x2;
}
#endif
}
str = dd->name;
if (dd->strx != 0 && dd->strx != 255)
str = str_tb[dd->strx];
de->x = x;
de->y = y_get(s->staff, up, x, de->v);
if (!up)
de->y -= dd->h;
de->str = str;
/* (y_set is done later in draw_deco_staff) */
}
/* special case for slide and tremolo */
static void d_slide(struct deco_elt *de)
{
struct SYMBOL *s;
int m, yc;
float xc, dx;
s = de->s;
yc = s->pits[0];
xc = 5;
for (m = 0; m <= s->nhd; m++) {
if (s->as.u.note.accs[m])
dx = 4 + s->shac[m];
else {
dx = 5 - s->shhd[m];
switch (s->head) {
case H_SQUARE:
case H_OVAL:
dx += 2.5;
break;
}
}
if (s->pits[m] <= yc + 3 && dx > xc)
xc = dx;
}
de->x = s->x - xc;
de->y = (float) (3 * (yc - 18));
}
/* special case for long trill */
static void d_trill(struct deco_elt *de)
{
struct SYMBOL *s, *s2;
struct deco_def_s *dd;
int staff, up;
float x, y, w;
if (de->flags & DE_LDST)
return;
s2 = de->s;
if (de->start) { /* deco start */
s = de->start->s;
x = s->x;
if (s->as.type == ABC_T_NOTE
&& s->as.u.note.dc.n > 1)
x += 10;
} else { /* end without start */
s = first_note;
x = s->x - s->wl - 4;
}
de->staff = staff = s2->staff;
up = s2->multi >= 0;
if (de->defl & DEF_NOEN) { /* if no decoration end */
w = de->x - x;
if (w < 20) {
x = de->x - 20 - 3;
w = 20;
}
} else {
w = s2->x - x - 6;
if (s2->as.type == ABC_T_NOTE)
w -= 6;
if (w < 20) {
x -= (20 - w) * 0.5;
if (de->start == 0)
x -= (20 - w) * 0.5;
w = 20;
}
}
dd = &deco_def_tb[de->t];
y = y_get(staff, up, x, w);
if (up) {
float stafft;
stafft = staff_tb[s->staff].topbar + 2;
if (y < stafft)
y = stafft;
} else {
float staffb;
y -= dd->h;
staffb = staff_tb[s->staff].botbar - 2;
if (y > staffb)
y = staffb;
}
de->flags &= ~DE_LDEN;
de->flags |= DE_VAL;
de->v = w;
de->x = x;
de->y = y;
if (up)
y += dd->h;
y_set(staff, up, x, w, y);
if (up)
s->ymx = s2->ymx = y;
else
s->ymn = s2->ymn = y;
}
/* above (or below) the staff */
static void d_upstaff(struct deco_elt *de)
{
struct SYMBOL *s;
struct deco_def_s *dd;
float x, yc, stafft, staffb, w;
int inv;
s = de->s;
dd = &deco_def_tb[de->t];
inv = 0;
x = s->x + s->shhd[s->stem >= 0 ? 0 : s->nhd];
w = dd->wl + dd->wr;
stafft = staff_tb[s->staff].topbar + 2;
staffb = staff_tb[s->staff].botbar - 2;
if (dd->strx != 0)
de->str = dd->strx == 255 ? dd->name : str_tb[dd->strx];
switch (s->posit.orn) {
case SL_ABOVE:
de->flags &= ~DE_BELOW;
break;
case SL_BELOW:
de->flags |= DE_BELOW;
break;
}
if (strcmp(dd->name, "roll") == 0) {
if (s->multi < 0
|| (s->multi == 0 && s->stem > 0)) {
yc = y_get(s->staff, 0, s->x - dd->wl, w);
if (yc > staffb)
yc = staffb;
yc -= dd->h;
y_set(s->staff, 0, s->x, 0, yc);
inv = 1;
s->ymn = yc;
} else {
yc = y_get(s->staff, 1, s->x, 0) + 3;
if (yc < stafft)
yc = stafft;
if (s->stem <= 0
&& (s->dots == 0 || ((int) s->y % 6)))
yc -= 2;
y_set(s->staff, 1, s->x - dd->wl, w, yc + dd->h);
s->ymx = yc + dd->h;
}
} else if (strcmp(dd->name, "breath") == 0
|| strcmp(dd->name, "longphrase") == 0
|| strcmp(dd->name, "mediumphrase") == 0
|| strcmp(dd->name, "shortphrase") == 0) {
yc = stafft + 1;
for (s = s->ts_next; s; s = s->ts_next)
if (s->shrink != 0)
break;
if (s)
x += (s->x - x) * 0.4;
else
x += (realwidth - x) * 0.4;
} else {
if (strcmp(dd->name, "invertedturn") == 0
|| strcmp(dd->name, "invertedturnx") == 0)
inv = 1;
if (s->multi >= 0
&& strcmp(dd->name, "invertedfermata") != 0
&& !(de->flags & DE_BELOW)) {
yc = y_get(s->staff, 1, s->x - dd->wl, w);
if (yc < stafft)
yc = stafft;
y_set(s->staff, 1, s->x - dd->wl, w, yc + dd->h);
s->ymx = yc + dd->h;
} else {
yc = y_get(s->staff, 0, s->x - dd->wl, w);
if (yc > staffb)
yc = staffb;
yc -= dd->h;
y_set(s->staff, 0, s->x - dd->wl, w, yc);
if (strcmp(dd->name, "fermata") == 0
|| strcmp(dd->name, "invertedfermata") == 0)
inv = 1;
s->ymn = yc;
}
}
if (inv) {
yc += dd->h;
de->flags |= DE_INV;
}
de->x = x;
de->y = yc;
}
/* -- add a decoration - from %%deco -- */
/* syntax:
* %%deco <name> <c_func> <ps_func> <h> <wl> <wr> [<str>]
*/
void deco_add(char *s)
{
struct u_deco *d;
int l;
l = strlen(s);
d = malloc(sizeof *user_deco - sizeof user_deco->text + l + 1);
strcpy(d->text, s);
d->next = 0;
d->next = user_deco;
user_deco = d;
}
static unsigned char deco_build(char *text)
{
struct deco_def_s *dd;
int c_func, ideco, h, o, wl, wr, n;
unsigned l, ps_x, strx;
char name[32];
char ps_func[16];
/* extract the arguments */
if (sscanf(text, "%15s %d %15s %d %d %d%n",
name, &c_func, ps_func, &h, &wl, &wr, &n) != 6) {
error(1, 0, "Invalid deco %s", text);
return 128;
}
if ((unsigned) c_func >= sizeof func_tb / sizeof func_tb[0]
&& (c_func < 32 || c_func > 39)) {
error(1, 0, "%%%%deco: bad C function index (%s)", text);
return 128;
}
if (h < 0 || wl < 0 || wr < 0) {
error(1, 0, "%%%%deco: cannot have a negative value (%s)", text);
return 128;
}
if (h > 50 || wl > 80 || wr > 80) {
error(1, 0, "%%%%deco: abnormal h/wl/wr value (%s)", text);
return 128;
}
text += n;
while (isspace((unsigned char) *text))
text++;
/* search the decoration */
for (ideco = 1, dd = &deco_def_tb[1]; ideco < 128; ideco++, dd++) {
if (!dd->name
|| strcmp(dd->name, name) == 0)
break;
}
if (ideco == 128) {
error(1, 0, "Too many decorations");
return 128;
}
/* search the postscript function */
for (ps_x = 0; ps_x < sizeof ps_func_tb / sizeof ps_func_tb[0]; ps_x++) {
if (ps_func_tb[ps_x] == 0
|| strcmp(ps_func_tb[ps_x], ps_func) == 0)
break;
}
if (ps_x == sizeof ps_func_tb / sizeof ps_func_tb[0]) {
error(1, 0, "Too many postscript functions");
return 128;
}
/* have an index for the string */
if (*text == '\0') {
strx = 0;
} else if (strcmp(text, name) == 0) {
strx = 255;
} else {
for (strx = 1;
strx < sizeof str_tb / sizeof str_tb[0];
strx++) {
if (str_tb[strx] == 0) {
if (*text == '"') {
text++;
l = strlen(text);
str_tb[strx] = malloc(l);
memcpy(str_tb[strx], text, l - 1);
str_tb[strx][l - 1] = '\0';
} else {
str_tb[strx] = strdup(text);
}
break;
}
if (strcmp(str_tb[strx], text) == 0)
break;
}
if (strx == sizeof str_tb / sizeof str_tb[0]) {
error(1, 0, "Too many decoration strings");
return 128;
}
}
/* set the values */
if (!dd->name)
dd->name = strdup(name); /* new decoration */
dd->func = c_func;
if (!ps_func_tb[ps_x]) {
if (ps_func[0] == '-' && ps_func[1] == '\0')
ps_x = -1;
else
ps_func_tb[ps_x] = strdup(ps_func);
}
dd->ps_func = ps_x;
dd->h = h;
dd->wl = wl;
dd->wr = wr;
dd->strx = strx;
/* link the start and end of long decorations */
l = strlen(name);
if (l == 0)
return ideco;
l--;
if (name[l] == '(' || name[l] == ')') {
struct deco_def_s *ddo;
for (o = 1, ddo = &deco_def_tb[1]; o < 128; o++, ddo++) {
if (!ddo->name)
break;
if (strlen(ddo->name) == l + 1
&& strncmp(ddo->name, name, l) == 0) {
if (name[l] == '('
&& ddo->name[l] == ')') {
dd->ld_end = o;
break;
}
if (name[l] == ')'
&& ddo->name[l] == '(') {
ddo->ld_end = ideco;
break;
}
}
}
}
return ideco;
}
/* -- set the duration of the notes under a feathered beam -- */
static void set_feathered_beam(struct SYMBOL *s1,
int accel)
{
struct SYMBOL *s, *s2;
int n, t, tt, d, b, i;
float a;
/* search the end of the beam */
d = s1->dur;
s2 = 0;
n = 1;
for (s = (struct SYMBOL *) s1->as.next;
s;
s = (struct SYMBOL *) s->as.next) {
if (s->dur != d
|| (s->as.flags & ABC_F_SPACE))
break;
s2 = s;
n++;
}
if (s2 == 0)
return;
b = d / 2; /* smallest note duration */
a = (float) d / (n - 1); /* delta duration */
tt = d * n;
t = 0;
if (accel) { /* !beam-accel! */
for (s = s1, i = n - 1;
s != s2;
s = (struct SYMBOL *) s->as.next, i--) {
d = (int) lroundf(a * i) + b;
s->dur = d;
t += d;
}
} else { /* !beam-rall! */
for (s = s1, i = 0;
s != s2;
s = (struct SYMBOL *) s->as.next, i++) {
d = (int) lroundf(a * i) + b;
s->dur = d;
t += d;
}
}
s2->dur = tt - t;
}
/* -- convert the decorations -- */
void deco_cnv(struct deco *dc,
struct SYMBOL *s,
struct SYMBOL *prev)
{
int i, j;
struct deco_def_s *dd;
unsigned char ideco;
static char must_note_fmt[] = "Deco !%s! must be on a note";
for (i = dc->n; --i >= 0; ) {
if ((ideco = dc->t[i]) == 0)
continue;
if (ideco < 128) {
ideco = deco[ideco];
if (ideco == 0)
error(1, s,
"Notation '%c' not treated", dc->t[i]);
} else {
ideco = deco_intern(ideco);
}
dc->t[i] = ideco;
if (ideco == 0)
continue;
/* special decorations */
dd = &deco_def_tb[ideco];
switch (dd->func) {
default:
continue;
case 32: /* 32 = invisible */
s->as.flags |= ABC_F_INVIS;
break;
case 33: /* 33 = beamon */
s->sflags |= S_BEAM_ON;
break;
case 34: /* 34 = trem1..trem4 */
if (s->as.type != ABC_T_NOTE
|| !prev
|| prev->as.type != ABC_T_NOTE) {
error(1, s,
"!%s! must be on the last of a couple of notes",
dd->name);
break;
}
s->sflags |= (S_TREM2 | S_BEAM_END);
s->sflags &= ~S_BEAM_ST;
prev->sflags |= (S_TREM2 | S_BEAM_ST);
prev->sflags &= ~S_BEAM_END;
s->u = prev->u = dd->name[4] - '0';
for (j = 0; j <= s->nhd; j++)
s->as.u.note.lens[j] *= 2;
for (j = 0; j <= prev->nhd; j++)
prev->as.u.note.lens[j] *= 2;
break;
case 35: /* 35 = xstem */
if (s->as.type != ABC_T_NOTE) {
error(1, s, must_note_fmt, dd->name);
break;
}
s->sflags |= S_XSTEM;
break;
case 36: /* 36 = beambr1 / beambr2 */
if (s->as.type != ABC_T_NOTE) {
error(1, s, must_note_fmt, dd->name);
break;
}
s->sflags |= dd->name[6] == '1' ?
S_BEAM_BR1 : S_BEAM_BR2;
break;
case 37: /* 37 = rbstop */
s->sflags |= S_RBSTOP;
break;
case 38: /* 38 = /, // and /// = tremolo */
if (s->as.type != ABC_T_NOTE) {
error(1, s, must_note_fmt, dd->name);
break;
}
s->sflags |= S_TREM1;
s->u = strlen(dd->name); /* 1, 2 or 3 */
break;
case 39: /* 39 = beam-accel/beam-rall */
if (s->as.type != ABC_T_NOTE) {
error(1, s, must_note_fmt, dd->name);
break;
}
s->sflags |= S_FEATHERED_BEAM;
set_feathered_beam(s, dd->name[5] == 'a');
break;
}
dc->t[i] = 0; /* already treated */
}
}
/* -- define a user decoration -- */
static unsigned char user_deco_define(char *name)
{
struct u_deco *d;
int l;
l = strlen(name);
for (d = user_deco; d; d = d->next) {
if (strncmp(d->text, name, l) == 0
&& d->text[l] == ' ')
return deco_build(d->text);
}
return 128;
}
/* -- define a standard decoration -- */
unsigned char deco_define(char *name)
{
unsigned char ideco;
int l;
l = strlen(name);
for (ideco = 0; ; ideco++) {
if (!std_deco_tb[ideco])
return 128;
if (strncmp(std_deco_tb[ideco], name, l) == 0
&& std_deco_tb[ideco][l] == ' ')
break;
}
return deco_build(std_deco_tb[ideco]);
}
/* -- convert the external deco number to the internal one -- */
unsigned char deco_intern(unsigned char ideco)
{