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rockbox/apps/plugins/pdbox/PDa/src/g_array.c
Wincent Balin a266ff185a pdbox: Solved issue with WAV file import on big-endian targets (signed 16-bit files only); small I/O-related workaround in g_array.c 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26439 a1c6a512-1295-4272-9138-f99709370657
2010-06-01 00:23:59 +00:00

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/* Copyright (c) 1997-1999 Miller Puckette.
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
#ifdef ROCKBOX
#include "plugin.h"
#include "../../pdbox.h"
#include "m_pd.h"
#include "g_canvas.h"
#ifdef SIMULATOR
int printf(const char *fmt, ...);
#endif /* SIMULATOR */
#else /* ROCKBOX */
#include <stdlib.h>
#include <string.h>
#include <stdio.h> /* for read/write to files */
#include "m_pd.h"
#include "g_canvas.h"
#include <math.h>
#endif /* ROCKBOX */
/* see also the "plot" object in g_scalar.c which deals with graphing
arrays which are fields in scalars. Someday we should unify the
two, but how? */
/* aux routine to bash leading '#' to '$' for dialogs in u_main.tk
which can't send symbols starting with '$' (because the Pd message
interpreter would change them!) */
static t_symbol *sharptodollar(t_symbol *s)
{
if (*s->s_name == '#')
{
char buf[MAXPDSTRING];
strncpy(buf, s->s_name, MAXPDSTRING);
buf[MAXPDSTRING-1] = 0;
buf[0] = '$';
return (gensym(buf));
}
else return (s);
}
/* --------- "pure" arrays with scalars for elements. --------------- */
/* Pure arrays have no a priori graphical capabilities.
They are instantiated by "garrays" below or can be elements of other
scalars (g_scalar.c); their graphical behavior is defined accordingly. */
t_array *array_new(t_symbol *templatesym, t_gpointer *parent)
{
t_array *x = (t_array *)getbytes(sizeof (*x));
t_template *template;
#ifndef ROCKBOX
t_gpointer *gp;
#endif
template = template_findbyname(templatesym);
x->a_templatesym = templatesym;
x->a_n = 1;
x->a_elemsize = sizeof(t_word) * template->t_n;
x->a_vec = (char *)getbytes(x->a_elemsize);
/* note here we blithely copy a gpointer instead of "setting" a
new one; this gpointer isn't accounted for and needn't be since
we'll be deleted before the thing pointed to gets deleted anyway;
see array_free. */
x->a_gp = *parent;
x->a_stub = gstub_new(0, x);
word_init((t_word *)(x->a_vec), template, parent);
return (x);
}
void array_resize(t_array *x, t_template *template, int n)
{
int elemsize, oldn;
#ifndef ROCKBOX
t_gpointer *gp;
#endif
if (n < 1)
n = 1;
oldn = x->a_n;
elemsize = sizeof(t_word) * template->t_n;
x->a_vec = (char *)resizebytes(x->a_vec, oldn * elemsize,
n * elemsize);
x->a_n = n;
if (n > oldn)
{
char *cp = x->a_vec + elemsize * oldn;
int i = n - oldn;
for (; i--; cp += elemsize)
{
t_word *wp = (t_word *)cp;
word_init(wp, template, &x->a_gp);
}
}
}
void word_free(t_word *wp, t_template *template);
void array_free(t_array *x)
{
int i;
t_template *scalartemplate = template_findbyname(x->a_templatesym);
/* we don't unset our gpointer here since it was never "set." */
/* gpointer_unset(&x->a_gp); */
gstub_cutoff(x->a_stub);
for (i = 0; i < x->a_n; i++)
{
t_word *wp = (t_word *)(x->a_vec + x->a_elemsize * i);
word_free(wp, scalartemplate);
}
freebytes(x->a_vec, x->a_elemsize * x->a_n);
freebytes(x, sizeof *x);
}
/* --------------------- graphical arrays (garrays) ------------------- */
t_class *garray_class;
static int gcount = 0;
struct _garray
{
t_gobj x_gobj;
t_glist *x_glist;
t_array x_array; /* actual array; note only 4 fields used as below */
t_symbol *x_name;
t_symbol *x_realname; /* name with "$" expanded */
t_float x_firstx; /* X value of first item */
t_float x_xinc; /* X increment */
char x_usedindsp; /* true if some DSP routine is using this */
char x_saveit; /* true if we should save this with parent */
};
/* macros to get into the "array" structure */
#define x_n x_array.a_n
#define x_elemsize x_array.a_elemsize
#define x_vec x_array.a_vec
#define x_templatesym x_array.a_templatesym
t_garray *graph_array(t_glist *gl, t_symbol *s, t_symbol *templatesym,
t_floatarg f, t_floatarg saveit)
{
int n = f, i;
int zz, nwords;
t_garray *x;
t_pd *x2;
t_template *template;
char *str;
if (s == &s_)
{
char buf[40];
#ifdef ROCKBOX
snprintf(buf, sizeof(buf), "array%d", ++gcount);
#else
sprintf(buf, "array%d", ++gcount);
#endif
s = gensym(buf);
templatesym = &s_float;
n = 100;
}
else if (!strncmp((str = s->s_name), "array", 5)
&& (zz = atoi(str + 5)) > gcount) gcount = zz;
template = template_findbyname(templatesym);
if (!template)
{
error("array: couldn't find template %s", templatesym->s_name);
return (0);
}
nwords = template->t_n;
for (i = 0; i < nwords; i++)
{
/* we can't have array or list elements yet because what scalar
can act as their "parent"??? */
if (template->t_vec[i].ds_type == DT_ARRAY
|| template->t_vec[i].ds_type == DT_LIST)
{
error("array: template %s can't have sublists or arrays",
templatesym->s_name);
return (0);
}
}
x = (t_garray *)pd_new(garray_class);
if (n <= 0) n = 100;
x->x_n = n;
x->x_elemsize = nwords * sizeof(t_word);
x->x_vec = getbytes(x->x_n * x->x_elemsize);
memset(x->x_vec, 0, x->x_n * x->x_elemsize);
/* LATER should check that malloc */
x->x_name = s;
x->x_realname = canvas_realizedollar(gl, s);
pd_bind(&x->x_gobj.g_pd, x->x_realname);
x->x_templatesym = templatesym;
x->x_firstx = 0;
x->x_xinc = 1; /* LATER make methods to set this... */
glist_add(gl, &x->x_gobj);
x->x_glist = gl;
x->x_usedindsp = 0;
x->x_saveit = (saveit != 0);
if((x2 = pd_findbyclass(gensym("#A"), garray_class)))
pd_unbind(x2, gensym("#A"));
pd_bind(&x->x_gobj.g_pd, gensym("#A"));
return (x);
}
/* called from array menu item to create a new one */
void canvas_menuarray(t_glist *canvas)
{
#ifdef ROCKBOX
(void) canvas;
#else /* ROCKBOX */
t_glist *x = (t_glist *)canvas;
char cmdbuf[200];
sprintf(cmdbuf, "pdtk_array_dialog %%s array%d 100 1 1\n",
++gcount);
gfxstub_new(&x->gl_pd, x, cmdbuf);
#endif /* ROCKBOX */
}
/* called from graph_dialog to set properties */
void garray_properties(t_garray *x)
{
#ifdef ROCKBOX
(void) x;
#else /* ROCKBOX */
char cmdbuf[200];
gfxstub_deleteforkey(x);
/* create dialog window. LATER fix this to escape '$'
properly; right now we just detect a leading '$' and escape
it. There should be a systematic way of doing this. */
if (x->x_name->s_name[0] == '$')
sprintf(cmdbuf, "pdtk_array_dialog %%s \\%s %d %d 0\n",
x->x_name->s_name, x->x_n, x->x_saveit);
else sprintf(cmdbuf, "pdtk_array_dialog %%s %s %d %d 0\n",
x->x_name->s_name, x->x_n, x->x_saveit);
gfxstub_new(&x->x_gobj.g_pd, x, cmdbuf);
#endif /* ROCKBOX */
}
/* this is called back from the dialog window to create a garray.
The otherflag requests that we find an existing graph to put it in. */
void glist_arraydialog(t_glist *parent, t_symbol *name, t_floatarg size,
t_floatarg saveit, t_floatarg otherflag)
{
t_glist *gl;
t_garray *a;
if (size < 1)
size = 1;
if (otherflag == 0 || (!(gl = glist_findgraph(parent))))
gl = glist_addglist(parent, &s_, 0, 1,
(size > 1 ? size-1 : size), -1, 0, 0, 0, 0);
a = graph_array(gl, sharptodollar(name), &s_float, size, saveit);
}
/* this is called from the properties dialog window for an existing array */
void garray_arraydialog(t_garray *x, t_symbol *name, t_floatarg fsize,
t_floatarg saveit, t_floatarg deleteit)
{
if (deleteit != 0)
{
glist_delete(x->x_glist, &x->x_gobj);
}
else
{
int size;
t_symbol *argname = sharptodollar(name);
if (argname != x->x_name)
{
x->x_name = argname;
pd_unbind(&x->x_gobj.g_pd, x->x_realname);
x->x_realname = canvas_realizedollar(x->x_glist, argname);
pd_bind(&x->x_gobj.g_pd, x->x_realname);
}
size = fsize;
if (size < 1)
size = 1;
if (size != x->x_n)
garray_resize(x, size);
garray_setsaveit(x, (saveit != 0));
garray_redraw(x);
}
}
static void garray_free(t_garray *x)
{
t_pd *x2;
#ifndef ROCKBOX
gfxstub_deleteforkey(x);
#endif
pd_unbind(&x->x_gobj.g_pd, x->x_realname);
/* LATER find a way to get #A unbound earlier (at end of load?) */
while((x2 = pd_findbyclass(gensym("#A"), garray_class)))
pd_unbind(x2, gensym("#A"));
freebytes(x->x_vec, x->x_n * x->x_elemsize);
}
/* ------------- code used by both array and plot widget functions ---- */
/* routine to get screen coordinates of a point in an array */
void array_getcoordinate(t_glist *glist,
char *elem, int xonset, int yonset, int wonset, int indx,
float basex, float basey, float xinc,
float *xp, float *yp, float *wp)
{
float xval, yval, ypix, wpix;
if (xonset >= 0)
xval = fixtof(*(t_sample *)(elem + xonset));
else xval = indx * xinc;
if (yonset >= 0)
yval = fixtof(*(t_sample *)(elem + yonset));
else yval = 0;
ypix = glist_ytopixels(glist, basey + yval);
if (wonset >= 0)
{
/* found "w" field which controls linewidth. */
float wval = *(float *)(elem + wonset);
wpix = glist_ytopixels(glist, basey + yval + wval) - ypix;
if (wpix < 0)
wpix = -wpix;
}
else wpix = 1;
*xp = glist_xtopixels(glist, basex + xval);
*yp = ypix;
*wp = wpix;
}
static float array_motion_xcumulative;
static float array_motion_ycumulative;
static t_symbol *array_motion_xfield;
static t_symbol *array_motion_yfield;
static t_glist *array_motion_glist;
static t_gobj *array_motion_gobj;
static t_word *array_motion_wp;
static t_template *array_motion_template;
static int array_motion_npoints;
static int array_motion_elemsize;
#ifndef ROCKBOX
static int array_motion_altkey;
#endif
static float array_motion_initx;
static float array_motion_xperpix;
static float array_motion_yperpix;
static int array_motion_lastx;
static int array_motion_fatten;
/* LATER protect against the template changing or the scalar disappearing
probably by attaching a gpointer here ... */
static void array_motion(void *z, t_floatarg dx, t_floatarg dy)
{
#ifdef ROCKBOX
(void) z;
#endif
array_motion_xcumulative += dx * array_motion_xperpix;
array_motion_ycumulative += dy * array_motion_yperpix;
if (*array_motion_xfield->s_name)
{
/* it's an x, y plot; can drag many points at once */
int i;
char *charword = (char *)array_motion_wp;
for (i = 0; i < array_motion_npoints; i++)
{
t_word *thisword = (t_word *)(charword + i * array_motion_elemsize);
if (*array_motion_xfield->s_name)
{
float xwas = template_getfloat(array_motion_template,
array_motion_xfield, thisword, 1);
template_setfloat(array_motion_template,
array_motion_xfield, thisword, xwas + dx, 1);
}
if (*array_motion_yfield->s_name)
{
float ywas = template_getfloat(array_motion_template,
array_motion_yfield, thisword, 1);
if (array_motion_fatten)
{
if (i == 0)
{
float newy = ywas + dy * array_motion_yperpix;
if (newy < 0)
newy = 0;
template_setfloat(array_motion_template,
array_motion_yfield, thisword, newy, 1);
}
}
else
{
template_setfloat(array_motion_template,
array_motion_yfield, thisword,
ywas + dy * array_motion_yperpix, 1);
}
}
}
}
else
{
/* a y-only plot. */
int thisx = array_motion_initx +
array_motion_xcumulative, x2;
int increment, i, nchange;
char *charword = (char *)array_motion_wp;
float newy = array_motion_ycumulative,
oldy = template_getfloat(
array_motion_template, array_motion_yfield,
(t_word *)(charword + array_motion_elemsize * array_motion_lastx), 1);
float ydiff = newy - oldy;
if (thisx < 0) thisx = 0;
else if (thisx >= array_motion_npoints)
thisx = array_motion_npoints - 1;
increment = (thisx > array_motion_lastx ? -1 : 1);
nchange = 1 + increment * (array_motion_lastx - thisx);
for (i = 0, x2 = thisx; i < nchange; i++, x2 += increment)
{
template_setfloat(array_motion_template,
array_motion_yfield,
(t_word *)(charword + array_motion_elemsize * x2),
newy, 1);
if (nchange > 1)
newy -= ydiff * (1./(nchange - 1));
}
array_motion_lastx = thisx;
}
glist_redrawitem(array_motion_glist, array_motion_gobj);
}
int array_doclick(t_array *array, t_glist *glist, t_gobj *gobj,
t_symbol *elemtemplatesym,
float linewidth, float xloc, float xinc, float yloc,
int xpix, int ypix, int shift, int alt, int dbl, int doit)
{
t_canvas *elemtemplatecanvas;
t_template *elemtemplate;
int elemsize, yonset, wonset, xonset, i;
#ifdef ROCKBOX
(void) linewidth;
(void) shift;
(void) dbl;
#endif
if (!array_getfields(elemtemplatesym, &elemtemplatecanvas,
&elemtemplate, &elemsize, &xonset, &yonset, &wonset))
{
float best = 100;
int incr;
/* if it has more than 2000 points, just check 300 of them. */
if (array->a_n < 2000)
incr = 1;
else incr = array->a_n / 300;
for (i = 0; i < array->a_n; i += incr)
{
float pxpix, pypix, pwpix, dx, dy;
array_getcoordinate(glist, (char *)(array->a_vec) + i * elemsize,
xonset, yonset, wonset, i, xloc, yloc, xinc,
&pxpix, &pypix, &pwpix);
if (pwpix < 4)
pwpix = 4;
dx = pxpix - xpix;
if (dx < 0) dx = -dx;
if (dx > 8)
continue;
dy = pypix - ypix;
if (dy < 0) dy = -dy;
if (dx + dy < best)
best = dx + dy;
if (wonset >= 0)
{
dy = (pypix + pwpix) - ypix;
if (dy < 0) dy = -dy;
if (dx + dy < best)
best = dx + dy;
dy = (pypix - pwpix) - ypix;
if (dy < 0) dy = -dy;
if (dx + dy < best)
best = dx + dy;
}
}
if (best > 8)
return (0);
best += 0.001; /* add truncation error margin */
for (i = 0; i < array->a_n; i += incr)
{
float pxpix, pypix, pwpix, dx, dy, dy2, dy3;
array_getcoordinate(glist, (char *)(array->a_vec) + i * elemsize,
xonset, yonset, wonset, i, xloc, yloc, xinc,
&pxpix, &pypix, &pwpix);
if (pwpix < 4)
pwpix = 4;
dx = pxpix - xpix;
if (dx < 0) dx = -dx;
dy = pypix - ypix;
if (dy < 0) dy = -dy;
if (wonset >= 0)
{
dy2 = (pypix + pwpix) - ypix;
if (dy2 < 0) dy2 = -dy2;
dy3 = (pypix - pwpix) - ypix;
if (dy3 < 0) dy3 = -dy3;
if (yonset <= 0)
dy = 100;
}
else dy2 = dy3 = 100;
if (dx + dy <= best || dx + dy2 <= best || dx + dy3 <= best)
{
if (dy < dy2 && dy < dy3)
array_motion_fatten = 0;
else if (dy2 < dy3)
array_motion_fatten = -1;
else array_motion_fatten = 1;
if (doit)
{
char *elem = (char *)array->a_vec;
array_motion_elemsize = elemsize;
array_motion_glist = glist;
array_motion_gobj = gobj;
array_motion_template = elemtemplate;
array_motion_xperpix = glist_dpixtodx(glist, 1);
array_motion_yperpix = glist_dpixtody(glist, 1);
if (alt && xpix < pxpix) /* delete a point */
{
if (array->a_n <= 1)
return (0);
memmove((char *)(array->a_vec) + elemsize * i,
(char *)(array->a_vec) + elemsize * (i+1),
(array->a_n - 1 - i) * elemsize);
array_resize(array, elemtemplate, array->a_n - 1);
glist_redrawitem(array_motion_glist, array_motion_gobj);
return (0);
}
else if (alt)
{
/* add a point (after the clicked-on one) */
array_resize(array, elemtemplate, array->a_n + 1);
elem = (char *)array->a_vec;
memmove(elem + elemsize * (i+1),
elem + elemsize * i,
(array->a_n - i - 1) * elemsize);
i++;
}
if (xonset >= 0)
{
array_motion_xfield = gensym("x");
array_motion_xcumulative =
*(float *)((elem + elemsize * i) + xonset);
array_motion_wp = (t_word *)(elem + i * elemsize);
array_motion_npoints = array->a_n - i;
}
else
{
array_motion_xfield = &s_;
array_motion_xcumulative = 0;
array_motion_wp = (t_word *)elem;
array_motion_npoints = array->a_n;
array_motion_initx = i;
array_motion_lastx = i;
array_motion_xperpix *= (xinc == 0 ? 1 : 1./xinc);
}
if (array_motion_fatten)
{
array_motion_yfield = gensym("w");
array_motion_ycumulative =
*(float *)((elem + elemsize * i) + wonset);
array_motion_yperpix *= array_motion_fatten;
}
else if (yonset >= 0)
{
array_motion_yfield = gensym("y");
array_motion_ycumulative =
*(float *)((elem + elemsize * i) + yonset);
}
else
{
array_motion_yfield = &s_;
array_motion_ycumulative = 0;
}
glist_grab(glist, 0, array_motion, 0, xpix, ypix);
}
if (alt)
{
if (xpix < pxpix)
return (CURSOR_EDITMODE_DISCONNECT);
else return (CURSOR_RUNMODE_ADDPOINT);
}
else return (array_motion_fatten ?
CURSOR_RUNMODE_THICKEN : CURSOR_RUNMODE_CLICKME);
}
}
}
return (0);
}
/* -------------------- widget behavior for garray ------------ */
static void garray_getrect(t_gobj *z, t_glist *glist,
int *xp1, int *yp1, int *xp2, int *yp2)
{
t_garray *x = (t_garray *)z;
float x1 = 0x7fffffff, y1 = 0x7fffffff, x2 = -0x7fffffff, y2 = -0x7fffffff;
t_canvas *elemtemplatecanvas;
t_template *elemtemplate;
int elemsize, yonset, wonset, xonset, i;
if (!array_getfields(x->x_templatesym, &elemtemplatecanvas,
&elemtemplate, &elemsize, &xonset, &yonset, &wonset))
{
int incr;
/* if it has more than 2000 points, just check 300 of them. */
if (x->x_array.a_n < 2000)
incr = 1;
else incr = x->x_array.a_n / 300;
for (i = 0; i < x->x_array.a_n; i += incr)
{
#ifdef ROCKBOX
float pxpix, pypix, pwpix;
#else /* ROCKBOX */
float pxpix, pypix, pwpix, dx, dy;
#endif /* ROCKBOX */
array_getcoordinate(glist, (char *)(x->x_array.a_vec) +
i * elemsize,
xonset, yonset, wonset, i, 0, 0, 1,
&pxpix, &pypix, &pwpix);
if (pwpix < 2)
pwpix = 2;
if (pxpix < x1)
x1 = pxpix;
if (pxpix > x2)
x2 = pxpix;
if (pypix - pwpix < y1)
y1 = pypix - pwpix;
if (pypix + pwpix > y2)
y2 = pypix + pwpix;
}
}
*xp1 = x1;
*yp1 = y1;
*xp2 = x2;
*yp2 = y2;
}
static void garray_displace(t_gobj *z, t_glist *glist, int dx, int dy)
{
#ifdef ROCKBOX
(void) z;
(void) glist;
(void) dx;
(void) dy;
#endif
/* refuse */
}
static void garray_select(t_gobj *z, t_glist *glist, int state)
{
#ifdef ROCKBOX
(void) z;
(void) glist;
(void) state;
#else /* ROCKBOX */
t_garray *x = (t_garray *)z;
#endif /* ROCKBOX */
/* fill in later */
}
static void garray_activate(t_gobj *z, t_glist *glist, int state)
{
#ifdef ROCKBOX
(void) z;
(void) glist;
(void) state;
#endif
}
static void garray_delete(t_gobj *z, t_glist *glist)
{
#ifdef ROCKBOX
(void) z;
(void) glist;
#endif
/* nothing to do */
}
static void garray_vis(t_gobj *z, t_glist *glist, int vis)
{
t_garray *x = (t_garray *)z;
if (vis)
{
int i, xonset, yonset, type;
t_symbol *arraytype;
t_template *template = template_findbyname(x->x_templatesym);
if (!template)
return;
if (!template_find_field(template, gensym("y"), &yonset, &type,
&arraytype) || type != DT_FLOAT)
{
error("%s: needs floating-point 'y' field",
x->x_templatesym->s_name);
#ifndef ROCKBOX
sys_vgui(".x%x.c create text 50 50 -text foo\
-tags .x%x.a%x\n",
glist_getcanvas(glist), glist_getcanvas(glist), x);
#endif
}
else if (!template_find_field(template, gensym("x"), &xonset, &type,
&arraytype) || type != DT_FLOAT)
{
float firsty, xcum = x->x_firstx;
int lastpixel = -1, ndrawn = 0;
float yval = 0, xpix;
int ixpix = 0;
#ifndef ROCKBOX
sys_vgui(".x%x.c create line \\\n", glist_getcanvas(glist));
#endif
for (i = 0; i < x->x_n; i++)
{
yval = fixtof(*(t_sample *)(x->x_vec +
template->t_n * i * sizeof (t_word) + yonset));
xpix = glist_xtopixels(glist, xcum);
ixpix = xpix + 0.5;
if (ixpix != lastpixel)
{
#ifndef ROCKBOX
sys_vgui("%d %f \\\n", ixpix,
glist_ytopixels(glist, yval));
#endif
ndrawn++;
}
lastpixel = ixpix;
if (ndrawn >= 1000) break;
xcum += x->x_xinc;
}
/* TK will complain if there aren't at least 2 points... */
#ifndef ROCKBOX
if (ndrawn == 0) sys_vgui("0 0 0 0 \\\n");
else if (ndrawn == 1) sys_vgui("%d %f \\\n", ixpix,
glist_ytopixels(glist, yval));
sys_vgui("-tags .x%x.a%x\n", glist_getcanvas(glist), x);
#endif
firsty = fixtof(*(t_sample *)(x->x_vec + yonset));
#ifndef ROCKBOX
sys_vgui(".x%x.c create text %f %f -text {%s} -anchor e\
-font -*-courier-bold--normal--%d-* -tags .x%x.a%x\n",
glist_getcanvas(glist),
glist_xtopixels(glist, x->x_firstx) - 5.,
glist_ytopixels(glist, firsty),
x->x_name->s_name, glist_getfont(glist),
glist_getcanvas(glist), x);
#endif
}
else
{
post("x, y arrays not yet supported");
}
}
else
{
#ifndef ROCKBOX
sys_vgui(".x%x.c delete .x%x.a%x\n",
glist_getcanvas(glist), glist_getcanvas(glist), x);
#endif
}
}
static int garray_click(t_gobj *z, struct _glist *glist,
int xpix, int ypix, int shift, int alt, int dbl, int doit)
{
t_garray *x = (t_garray *)z;
return (array_doclick(&x->x_array, glist, z, x->x_templatesym, 1, 0, 1, 0,
xpix, ypix, shift, alt, dbl, doit));
}
#define ARRAYWRITECHUNKSIZE 1000
static void garray_save(t_gobj *z, t_binbuf *b)
{
t_garray *x = (t_garray *)z;
binbuf_addv(b, "sssisi;", gensym("#X"), gensym("array"),
x->x_name, x->x_n, x->x_templatesym, x->x_saveit);
#ifdef ROCKBOX
#ifdef SIMULATOR
printf("array save\n");
#endif /* SIMULATOR */
#else /* ROCKBOX */
fprintf(stderr,"array save\n");
#endif /* ROCKBOX */
if (x->x_saveit)
{
int n = x->x_n, n2 = 0;
if (x->x_templatesym != &s_float)
{
pd_error(x, "sorry, you can only save 'float' arrays now");
return;
}
if (n > 200000)
post("warning: I'm saving an array with %d points!\n", n);
while (n2 < n)
{
int chunk = n - n2, i;
if (chunk > ARRAYWRITECHUNKSIZE)
chunk = ARRAYWRITECHUNKSIZE;
binbuf_addv(b, "si", gensym("#A"), n2);
for (i = 0; i < chunk; i++)
binbuf_addv(b, "f", fixtof(((t_sample *)(x->x_vec))[n2+i]));
binbuf_addv(b, ";");
n2 += chunk;
}
}
}
t_widgetbehavior garray_widgetbehavior =
{
garray_getrect,
garray_displace,
garray_select,
garray_activate,
garray_delete,
garray_vis,
garray_click
};
/* ----------------------- public functions -------------------- */
void garray_usedindsp(t_garray *x)
{
x->x_usedindsp = 1;
}
void garray_redraw(t_garray *x)
{
if (glist_isvisible(x->x_glist))
{
garray_vis(&x->x_gobj, x->x_glist, 0);
garray_vis(&x->x_gobj, x->x_glist, 1);
}
}
/* This functiopn gets the template of an array; if we can't figure
out what template an array's elements belong to we're in grave trouble
when it's time to free or resize it. */
t_template *garray_template(t_garray *x)
{
t_template *template = template_findbyname(x->x_templatesym);
if (!template)
bug("garray_template");
return (template);
}
int garray_npoints(t_garray *x) /* get the length */
{
return (x->x_n);
}
char *garray_vec(t_garray *x) /* get the contents */
{
return ((char *)(x->x_vec));
}
/* routine that checks if we're just an array of floats and if
so returns the goods */
int garray_getfloatarray(t_garray *x, int *size, t_sample **vec)
{
t_template *template = garray_template(x);
int yonset, type;
t_symbol *arraytype;
if (!template_find_field(template, gensym("y"), &yonset,
&type, &arraytype) || type != DT_FLOAT)
error("%s: needs floating-point 'y' field",
x->x_templatesym->s_name);
else if (template->t_n != 1)
error("%s: has more than one field", x->x_templatesym->s_name);
else
{
*size = garray_npoints(x);
*vec = (t_sample *)garray_vec(x);
return (1);
}
return (0);
}
/* get any floating-point field of any element of an array */
float garray_get(t_garray *x, t_symbol *s, t_int indx)
{
t_template *template = garray_template(x);
int yonset, type;
t_symbol *arraytype;
if (!template_find_field(template, gensym("y"), &yonset,
&type, &arraytype) || type != DT_FLOAT)
{
error("%s: needs floating-point '%s' field", x->x_templatesym->s_name,
s->s_name);
return (0);
}
if (indx < 0) indx = 0;
else if (indx >= x->x_n) indx = x->x_n - 1;
return (*(float *)((x->x_vec + sizeof(t_word) * indx) + yonset));
}
/* set the "saveit" flag */
void garray_setsaveit(t_garray *x, int saveit)
{
if (x->x_saveit && !saveit)
post("warning: array %s: clearing save-in-patch flag",
x->x_name->s_name);
x->x_saveit = saveit;
}
/*------------------- Pd messages ------------------------ */
static void garray_const(t_garray *x, t_floatarg g)
{
t_template *template = garray_template(x);
int yonset, type, i;
t_symbol *arraytype;
if (!template_find_field(template, gensym("y"), &yonset,
&type, &arraytype) || type != DT_FLOAT)
error("%s: needs floating-point 'y' field",
x->x_templatesym->s_name);
else for (i = 0; i < x->x_n; i++)
*(float *)(((char *)x->x_vec + sizeof(t_word) * i) + yonset) = g;
garray_redraw(x);
}
/* sum of Fourier components; called from routines below */
static void garray_dofo(t_garray *x, int npoints, float dcval,
int nsin, t_float *vsin, int sineflag)
{
t_template *template = garray_template(x);
int yonset, type, i, j;
t_symbol *arraytype;
double phase, phaseincr, fj;
if (npoints == 0)
npoints = 512; /* dunno what a good default would be... */
if (npoints != (1 << ilog2(npoints)))
post("%s: rounnding to %d points", x->x_templatesym->s_name,
(npoints = (1<<ilog2(npoints))));
garray_resize(x, npoints + 3);
phaseincr = 2. * 3.14159 / npoints;
if (!template_find_field(template, gensym("y"), &yonset,
&type, &arraytype) || type != DT_FLOAT)
{
error("%s: needs floating-point 'y' field", x->x_templatesym->s_name);
return;
}
for (i = 0, phase = -phaseincr; i < x->x_n; i++, phase += phaseincr )
{
double sum = dcval;
if (sineflag)
for (j = 0, fj = phase; j < nsin; j++, fj += phase)
sum += vsin[j] * sin(fj);
else
for (j = 0, fj = 0; j < nsin; j++, fj += phase)
sum += vsin[j] * cos(fj);
*(float *)((x->x_vec + sizeof(t_word) * i) + yonset) = sum;
}
garray_redraw(x);
}
static void garray_sinesum(t_garray *x, t_symbol *s, int argc, t_atom *argv)
{
#ifdef ROCKBOX
(void) s;
#else
t_template *template = garray_template(x);
#endif
t_float *svec = (t_float *)t_getbytes(sizeof(t_float) * argc);
int npoints, i;
if (argc < 2)
{
error("sinesum: %s: need number of points and partial strengths",
x->x_templatesym->s_name);
return;
}
npoints = atom_getfloatarg(0, argc, argv);
argv++, argc--;
svec = (t_float *)t_getbytes(sizeof(t_float) * argc);
if (!svec) return;
for (i = 0; i < argc; i++)
svec[i] = atom_getfloatarg(i, argc, argv);
garray_dofo(x, npoints, 0, argc, svec, 1);
t_freebytes(svec, sizeof(t_float) * argc);
}
static void garray_cosinesum(t_garray *x, t_symbol *s, int argc, t_atom *argv)
{
#ifdef ROCKBOX
(void) s;
#else
t_template *template = garray_template(x);
#endif
t_float *svec = (t_float *)t_getbytes(sizeof(t_float) * argc);
int npoints, i;
if (argc < 2)
{
error("sinesum: %s: need number of points and partial strengths",
x->x_templatesym->s_name);
return;
}
npoints = atom_getfloatarg(0, argc, argv);
argv++, argc--;
svec = (t_float *)t_getbytes(sizeof(t_float) * argc);
if (!svec) return;
for (i = 0; i < argc; i++)
svec[i] = atom_getfloatarg(i, argc, argv);
garray_dofo(x, npoints, 0, argc, svec, 0);
t_freebytes(svec, sizeof(t_float) * argc);
}
static void garray_normalize(t_garray *x, t_float f)
{
t_template *template = garray_template(x);
#ifdef ROCKBOX
int yonset, type, i;
#else
int yonset, type, npoints, i;
#endif
double maxv, renormer;
t_symbol *arraytype;
if (f <= 0)
f = 1;
if (!template_find_field(template, gensym("y"), &yonset,
&type, &arraytype) || type != DT_FLOAT)
{
error("%s: needs floating-point 'y' field", x->x_templatesym->s_name);
return;
}
for (i = 0, maxv = 0; i < x->x_n; i++)
{
double v = *(float *)((x->x_vec + sizeof(t_word) * i) + yonset);
if (v > maxv)
maxv = v;
if (-v > maxv)
maxv = -v;
}
if (maxv >= 0)
{
renormer = f / maxv;
for (i = 0; i < x->x_n; i++)
{
*(float *)((x->x_vec + sizeof(t_word) * i) + yonset)
*= renormer;
}
}
garray_redraw(x);
}
/* list -- the first value is an index; subsequent values are put in
the "y" slot of the array. This generalizes Max's "table", sort of. */
static void garray_list(t_garray *x, t_symbol *s, int argc, t_atom *argv)
{
t_template *template = garray_template(x);
int yonset, type, i;
t_symbol *arraytype;
#ifdef ROCKBOX
(void) s;
#endif
if (!template_find_field(template, gensym("y"), &yonset,
&type, &arraytype) || type != DT_FLOAT)
error("%s: needs floating-point 'y' field",
x->x_templatesym->s_name);
else if (argc < 2) return;
else
{
int firstindex = atom_getfloat(argv);
argc--;
argv++;
/* drop negative x values */
if (firstindex < 0)
{
argc += firstindex;
argv -= firstindex;
firstindex = 0;
if (argc <= 0) return;
}
if (argc + firstindex > x->x_n)
{
argc = x->x_n - firstindex;
if (argc <= 0) return;
}
for (i = 0; i < argc; i++)
*(t_sample *)((x->x_vec + sizeof(t_word) * (i + firstindex)) + yonset) =
ftofix(atom_getfloat(argv + i));
}
garray_redraw(x);
}
/* forward a "bounds" message to the owning graph */
static void garray_bounds(t_garray *x, t_floatarg x1, t_floatarg y1,
t_floatarg x2, t_floatarg y2)
{
vmess(&x->x_glist->gl_pd, gensym("bounds"), "ffff", x1, y1, x2, y2);
}
/* same for "xticks", etc */
static void garray_xticks(t_garray *x,
t_floatarg point, t_floatarg inc, t_floatarg f)
{
vmess(&x->x_glist->gl_pd, gensym("xticks"), "fff", point, inc, f);
}
static void garray_yticks(t_garray *x,
t_floatarg point, t_floatarg inc, t_floatarg f)
{
vmess(&x->x_glist->gl_pd, gensym("yticks"), "fff", point, inc, f);
}
static void garray_xlabel(t_garray *x, t_symbol *s, int argc, t_atom *argv)
{
typedmess(&x->x_glist->gl_pd, s, argc, argv);
}
static void garray_ylabel(t_garray *x, t_symbol *s, int argc, t_atom *argv)
{
typedmess(&x->x_glist->gl_pd, s, argc, argv);
}
/* change the name of a garray. */
static void garray_rename(t_garray *x, t_symbol *s)
{
pd_unbind(&x->x_gobj.g_pd, x->x_realname);
pd_bind(&x->x_gobj.g_pd, x->x_realname = x->x_name = s);
garray_redraw(x);
}
static void garray_read(t_garray *x, t_symbol *filename)
{
int nelem = x->x_n, filedesc;
#ifdef ROCKBOX
int fd = 0;
#else
FILE *fd;
#endif
char buf[MAXPDSTRING], *bufptr;
t_template *template = garray_template(x);
int yonset, type, i;
t_symbol *arraytype;
if (!template_find_field(template, gensym("y"), &yonset,
&type, &arraytype) || type != DT_FLOAT)
{
error("%s: needs floating-point 'y' field", x->x_templatesym->s_name);
return;
}
if ((filedesc = open_via_path(
canvas_getdir(glist_getcanvas(x->x_glist))->s_name,
filename->s_name, "", buf, &bufptr, MAXPDSTRING, 0)) < 0
#ifdef ROCKBOX
|| !(fd = filedesc))
#else
|| !(fd = fdopen(filedesc, "r")))
#endif
{
error("%s: can't open", filename->s_name);
return;
}
for (i = 0; i < nelem; i++)
{
#ifdef ROCKBOX
if(rb_fscanf_f(fd, (float*)((x->x_vec + sizeof(t_word) * i) + yonset)))
#else
if (!fscanf(fd, "%f", (float *)((x->x_vec + sizeof(t_word) * i) +
yonset)))
#endif
{
post("%s: read %d elements into table of size %d",
filename->s_name, i, nelem);
break;
}
}
while (i < nelem)
*(float *)((x->x_vec + sizeof(t_word) * i) + yonset) = 0, i++;
#ifdef ROCKBOX
close(fd);
#else
fclose(fd);
#endif
garray_redraw(x);
}
/* this should be renamed and moved... */
int garray_ambigendian(void)
{
unsigned short s = 1;
unsigned char c = *(char *)(&s);
return (c==0);
}
#define BINREADMODE "rb"
#define BINWRITEMODE "wb"
static void garray_read16(t_garray *x, t_symbol *filename,
t_symbol *endian, t_floatarg fskip)
{
int skip = fskip, filedesc;
int i, nelem;
t_sample *vec;
#ifdef ROCKBOX
int fd = 0;
#else
FILE *fd;
#endif
char buf[MAXPDSTRING], *bufptr;
short s;
int cpubig = garray_ambigendian(), swap = 0;
char c = endian->s_name[0];
if (c == 'b')
{
if (!cpubig) swap = 1;
}
else if (c == 'l')
{
if (cpubig) swap = 1;
}
else if (c)
{
error("array_read16: endianness is 'l' (low byte first ala INTEL)");
post("... or 'b' (high byte first ala MIPS,DEC,PPC)");
}
if (!garray_getfloatarray(x, &nelem, &vec))
{
error("%s: not a float array", x->x_templatesym->s_name);
return;
}
if ((filedesc = open_via_path(
canvas_getdir(glist_getcanvas(x->x_glist))->s_name,
filename->s_name, "", buf, &bufptr, MAXPDSTRING, 1)) < 0
#ifdef ROCKBOX
|| !(fd = filedesc))
#else
|| !(fd = fdopen(filedesc, BINREADMODE)))
#endif
{
error("%s: can't open", filename->s_name);
return;
}
if (skip)
{
#ifdef ROCKBOX
long pos = lseek(fd, (long)skip, SEEK_SET);
#else
long pos = fseek(fd, (long)skip, SEEK_SET);
#endif
if (pos < 0)
{
error("%s: can't seek to byte %d", buf, skip);
#ifdef ROCKBOX
close(fd);
#else
fclose(fd);
#endif
return;
}
}
for (i = 0; i < nelem; i++)
{
#ifdef ROCKBOX
if(read(fd, &s, sizeof(s)) < (ssize_t) sizeof(s))
#else
if (fread(&s, sizeof(s), 1, fd) < 1)
#endif
{
post("%s: read %d elements into table of size %d",
filename->s_name, i, nelem);
break;
}
if (swap) s = ((s & 0xff) << 8) | ((s & 0xff00) >> 8);
vec[i] = s * (1./32768.);
}
while (i < nelem) vec[i++] = 0;
#ifdef ROCKBOX
close(fd);
#else
fclose(fd);
#endif
garray_redraw(x);
}
static void garray_write(t_garray *x, t_symbol *filename)
{
#ifdef ROCKBOX
int fd;
#else
FILE *fd;
#endif
char buf[MAXPDSTRING];
t_template *template = garray_template(x);
int yonset, type, i;
t_symbol *arraytype;
if (!template_find_field(template, gensym("y"), &yonset,
&type, &arraytype) || type != DT_FLOAT)
{
error("%s: needs floating-point 'y' field", x->x_templatesym->s_name);
return;
}
canvas_makefilename(glist_getcanvas(x->x_glist), filename->s_name,
buf, MAXPDSTRING);
sys_bashfilename(buf, buf);
#ifdef ROCKBOX
if(!(fd = open(buf, O_WRONLY|O_CREAT|O_TRUNC, 0666)))
#else
if (!(fd = fopen(buf, "w")))
#endif
{
error("%s: can't create", buf);
return;
}
for (i = 0; i < x->x_n; i++)
{
#ifdef ROCKBOX
if(rb_fprintf_f(fd,
#else /* ROCKBOX */
if (fprintf(fd, "%g\n",
#endif /* ROCKBOX */
*(float *)((x->x_vec + sizeof(t_word) * i) + yonset)) < 1)
{
post("%s: write error", filename->s_name);
break;
}
}
#ifdef ROCKBOX
close(fd);
#else
fclose(fd);
#endif
}
static unsigned char waveheader[] = {
0x52, 0x49, 0x46, 0x46,
0x00, 0x00, 0x00, 0x00,
0x57, 0x41, 0x56, 0x45,
0x66, 0x6d, 0x74, 0x20,
0x10, 0x00, 0x00, 0x00,
0x01, 0x00, 0x01, 0x00,
0x44, 0xac, 0x00, 0x00,
0x88, 0x58, 0x01, 0x00,
0x02, 0x00, 0x10, 0x00,
0x64, 0x61, 0x74, 0x61,
0x00, 0x00, 0x00, 0x00,
};
/* wave format only so far */
static void garray_write16(t_garray *x, t_symbol *filename, t_symbol *format)
{
t_template *template = garray_template(x);
int yonset, type, i;
t_symbol *arraytype;
#ifdef ROCKBOX
int fd;
#else
FILE *fd;
#endif
int aiff = (format == gensym("aiff"));
char filenamebuf[MAXPDSTRING], buf2[MAXPDSTRING];
int swap = garray_ambigendian(); /* wave is only little endian */
int intbuf;
strncpy(filenamebuf, filename->s_name, MAXPDSTRING-10);
filenamebuf[MAXPDSTRING-10] = 0;
if (sizeof(int) != 4) post("write16: only works on 32-bit machines");
if (aiff)
{
if (strcmp(filenamebuf + strlen(filenamebuf)-5, ".aiff"))
strcat(filenamebuf, ".aiff");
}
else
{
if (strcmp(filenamebuf + strlen(filenamebuf)-4, ".wav"))
strcat(filenamebuf, ".wav");
}
if (!template_find_field(template, gensym("y"), &yonset,
&type, &arraytype) || type != DT_FLOAT)
{
error("%s: needs floating-point 'y' field", x->x_templatesym->s_name);
return;
}
canvas_makefilename(glist_getcanvas(x->x_glist), filenamebuf,
buf2, MAXPDSTRING);
sys_bashfilename(buf2, buf2);
#ifdef ROCKBOX
if(!(fd = open(buf2, O_WRONLY|O_CREAT|O_TRUNC, 0666)))
#else
if (!(fd = fopen(buf2, BINWRITEMODE)))
#endif
{
error("%s: can't create", buf2);
return;
}
intbuf = 2 * x->x_n + 36;
if (swap)
{
unsigned char *foo = (unsigned char *)&intbuf, xxx;
xxx = foo[0]; foo[0] = foo[3]; foo[3] = xxx;
xxx = foo[1]; foo[1] = foo[2]; foo[2] = xxx;
}
memcpy((void *)(waveheader + 4), (void *)(&intbuf), 4);
intbuf = 2 * x->x_n;
if (swap)
{
unsigned char *foo = (unsigned char *)&intbuf, xxx;
xxx = foo[0]; foo[0] = foo[3]; foo[3] = xxx;
xxx = foo[1]; foo[1] = foo[2]; foo[2] = xxx;
}
memcpy((void *)(waveheader + 40), (void *)(&intbuf), 4);
#ifdef ROCKBOX
if(write(fd, waveheader, sizeof(waveheader)) < (ssize_t) sizeof(waveheader))
#else
if (fwrite(waveheader, sizeof(waveheader), 1, fd) < 1)
#endif
{
post("%s: write error", buf2);
goto closeit;
}
for (i = 0; i < x->x_n; i++)
{
float f = 32767. * *(float *)((x->x_vec + sizeof(t_word) * i) + yonset);
short sh;
if (f < -32768) f = -32768;
else if (f > 32767) f = 32767;
sh = f;
if (swap)
{
unsigned char *foo = (unsigned char *)&sh, xxx;
xxx = foo[0]; foo[0] = foo[1]; foo[1] = xxx;
}
#ifdef ROCKBOX
if(write(fd, &sh, sizeof(sh)) < (ssize_t) sizeof(sh))
#else
if (fwrite(&sh, sizeof(sh), 1, fd) < 1)
#endif
{
post("%s: write error", buf2);
goto closeit;
}
}
closeit:
#ifdef ROCKBOX
close(fd);
#else
fclose(fd);
#endif
}
void garray_resize(t_garray *x, t_floatarg f)
{
int was = x->x_n, elemsize;
t_glist *gl;
#ifndef ROCKBOX
int dspwas;
#endif
int n = f;
char *nvec;
if (n < 1) n = 1;
elemsize = template_findbyname(x->x_templatesym)->t_n * sizeof(t_word);
nvec = t_resizebytes(x->x_vec, was * elemsize, n * elemsize);
if (!nvec)
{
pd_error(x, "array resize failed: out of memory");
return;
}
x->x_vec = nvec;
/* LATER should check t_resizebytes result */
if (n > was)
memset(x->x_vec + was*elemsize,
0, (n - was) * elemsize);
x->x_n = n;
/* if this is the only array in the graph,
reset the graph's coordinates */
gl = x->x_glist;
if (gl->gl_list == &x->x_gobj && !x->x_gobj.g_next)
{
vmess(&gl->gl_pd, gensym("bounds"), "ffff",
0., gl->gl_y1, (double)(n > 1 ? n-1 : 1), gl->gl_y2);
/* close any dialogs that might have the wrong info now... */
#ifndef ROCKBOX
gfxstub_deleteforkey(gl);
#endif
}
else garray_redraw(x);
if (x->x_usedindsp) canvas_update_dsp();
}
static void garray_print(t_garray *x)
{
post("garray %s: template %s, length %d",
x->x_name->s_name, x->x_templatesym->s_name, x->x_n);
}
void g_array_setup(void)
{
garray_class = class_new(gensym("array"), 0, (t_method)garray_free,
sizeof(t_garray), CLASS_GOBJ, 0);
class_setwidget(garray_class, &garray_widgetbehavior);
class_addmethod(garray_class, (t_method)garray_const, gensym("const"),
A_DEFFLOAT, A_NULL);
class_addlist(garray_class, garray_list);
class_addmethod(garray_class, (t_method)garray_bounds, gensym("bounds"),
A_FLOAT, A_FLOAT, A_FLOAT, A_FLOAT, A_NULL);
class_addmethod(garray_class, (t_method)garray_xticks, gensym("xticks"),
A_FLOAT, A_FLOAT, A_FLOAT, 0);
class_addmethod(garray_class, (t_method)garray_xlabel, gensym("xlabel"),
A_GIMME, 0);
class_addmethod(garray_class, (t_method)garray_yticks, gensym("yticks"),
A_FLOAT, A_FLOAT, A_FLOAT, 0);
class_addmethod(garray_class, (t_method)garray_ylabel, gensym("ylabel"),
A_GIMME, 0);
class_addmethod(garray_class, (t_method)garray_rename, gensym("rename"),
A_SYMBOL, 0);
class_addmethod(garray_class, (t_method)garray_read, gensym("read"),
A_SYMBOL, A_NULL);
class_addmethod(garray_class, (t_method)garray_read16, gensym("read16"),
A_SYMBOL, A_DEFFLOAT, A_DEFSYM, A_NULL);
class_addmethod(garray_class, (t_method)garray_write, gensym("write"),
A_SYMBOL, A_NULL);
class_addmethod(garray_class, (t_method)garray_write16, gensym("write16"),
A_SYMBOL, A_DEFSYM, A_NULL);
class_addmethod(garray_class, (t_method)garray_resize, gensym("resize"),
A_FLOAT, A_NULL);
class_addmethod(garray_class, (t_method)garray_print, gensym("print"),
A_NULL);
class_addmethod(garray_class, (t_method)garray_sinesum, gensym("sinesum"),
A_GIMME, 0);
class_addmethod(garray_class, (t_method)garray_cosinesum,
gensym("cosinesum"), A_GIMME, 0);
class_addmethod(garray_class, (t_method)garray_normalize,
gensym("normalize"), A_DEFFLOAT, 0);
class_addmethod(garray_class, (t_method)garray_arraydialog,
gensym("arraydialog"), A_SYMBOL, A_FLOAT, A_FLOAT, A_FLOAT, A_NULL);
class_setsavefn(garray_class, garray_save);
}
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