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#ifndef _plan9_
#include <config.h>
#ifdef NO_MALLOC_H
#include <stdlib.h>
#else
#include <malloc.h>
#endif
#include <stdio.h> /*for NULL */
#include <string.h> /*for memcpy */
#else
#include <u.h>
#include <libc.h>
#include <stdio.h>
#endif
#include <filter.h>
#include <zoom.h>
struct subdata {
struct filter *second;
struct image *image;
pixel_t **currlines;
int recal;
int forpversion, forversion;
number_t pre, pim;
};
void subwindow_setsecond(struct filter *f, struct filter *f1)
{
struct subdata *s = (struct subdata *) f->data;
s->second = f1;
}
static void myflip(struct image *image)
{
struct subdata *s = (struct subdata *) image->data;
flipgeneric(image);
s->image->flip(s->image);
s->currlines = s->image->currlines;
}
static int requirement(struct filter *f, struct requirements *r)
{
r->nimages = 2;
r->flags |= IMAGEDATA;
return (f->next->action->requirement(f->next, r));
}
extern CONST struct filteraction threed_filter;
static int initialize(struct filter *f, struct initdata *i)
{
struct subdata *s = (struct subdata *) f->data;
int x;
int val = 0;
pixel_t **lines1, **lines2 = NULL;
double size;
int width, height;
int threed = 0;
struct filter *f1 = f;
inhermisc(f, i);
if (datalost(f, i))
s->recal = 1;
while (f1) {
if (f1->action == &threed_filter)
threed = 1;
f1 = f1->next;
}
f->imageversion = i->image->version;
if (f->childimage != NULL)
destroy_image(f->childimage);
s->image = f->image = i->image;
s->image->flags |= PROTECTBUFFERS;
s->currlines = f->image->currlines;
s->forpversion = f->image->palette->version;
s->forversion = f->fractalc->version;
if (f->image->width * f->image->pixelwidth <
f->image->height * f->image->pixelheight)
size = f->image->width * f->image->pixelwidth / 2;
else
size = f->image->height * f->image->pixelheight / 2;
width = (int) (size / f->image->pixelwidth);
height = (int) (size / f->image->pixelheight);
/*fractalc_resize_to(f->fractalc,size,size); */
lines1 = (pixel_t **) malloc(sizeof(*lines1) * height);
if (f->image->nimages == 2)
lines2 = (pixel_t **) malloc(sizeof(*lines2) * height);
if (lines1 == NULL)
return 0;
if (f->image->nimages == 2 && lines2 == NULL) {
free(lines1);
return 0;
}
for (x = 0; x < height; x++) {
lines1[x] =
i->image->currlines[x + (threed ? f->image->height / 3 : 0)];
if (f->image->nimages == 2)
lines2[x] =
i->image->oldlines[x +
(threed ? f->image->height / 3 : 0)];
}
if (f->image->nimages == 2)
for (x = 0; x < f->image->height; x++) {
memcpy(f->image->oldlines[x], f->image->currlines[x],
f->image->width * f->image->bytesperpixel);
}
f->childimage = i->image =
create_image_lines(width, height, f->image->nimages, lines1,
lines2, i->image->palette, myflip, FREELINES,
f->image->pixelwidth, f->image->pixelheight);
if (i->image == NULL) {
free(lines1);
free(lines2);
return 0;
}
f->childimage->data = s;
x = f->previous->action->initialize(f->previous, i);
if (!x)
return 0;
if (s->second != NULL) {
i->image = f->image;
val = s->second->action->initialize(s->second, i);
if (!val)
return 0;
}
return (x | val);
}
static struct filter *getinstance(CONST struct filteraction *a)
{
struct filter *f = createfilter(a);
struct subdata *s = (struct subdata *) calloc(1, sizeof(*s));
f->name = "Subwindow";
f->data = s;
s->second = NULL;
return (f);
}
static void destroyinstance(struct filter *f)
{
free(f->data);
if (f->childimage != NULL)
destroy_image(f->childimage);
free(f);
}
static int doit(struct filter *f, int flags, int time)
{
int val = 0, m, vold;
vinfo vs;
vrect rs;
float wwidth, wheight;
struct subdata *s = (struct subdata *) f->data;
static int v;
if (s->second != NULL
&& (s->recal || s->forpversion != f->image->palette->version
|| s->forversion != f->fractalc->version)) {
int x;
if (s->recal)
f->fractalc->version++;
s->forpversion = f->image->palette->version;
s->forversion = f->fractalc->version;
s->recal = 1;
val = (s->second->action->doit(s->second, flags, time));
if (val & ANIMATION)
return val;
s->recal = 0;
if (f->image->nimages == 2)
for (x = 0; x < f->image->height; x++) {
memcpy(f->image->oldlines[x], f->image->currlines[x],
f->image->width * f->image->bytesperpixel);
}
}
if (s->currlines != f->image->currlines && f->childimage->nimages == 2)
flipgeneric(f->childimage), s->currlines = f->image->currlines;
/*FIXME: ugly hack for new julia mode */
v++;
wwidth = f->fractalc->windowwidth;
wheight = f->fractalc->windowheight;
f->fractalc->windowwidth =
f->previous->image->width * f->previous->image->pixelwidth;
f->fractalc->windowheight =
f->previous->image->height * f->previous->image->pixelheight;
vs = f->fractalc->s;
rs = f->fractalc->rs;
f->fractalc->s = f->fractalc->currentformula->v;
if (f->fractalc->currentformula->calculate_julia) {
f->fractalc->s.cr = f->fractalc->s.ci = 0;
f->fractalc->s.rr = f->fractalc->s.ri = 4; /*FIXME should be set to real formula's bailout */
}
update_view(f->fractalc);
m = f->fractalc->mandelbrot;
vold = f->fractalc->version;
if (s->pre != f->fractalc->pre || s->pim != f->fractalc->pim) {
f->fractalc->version = v;
s->pre = f->fractalc->pre;
s->pim = f->fractalc->pim;
}
f->fractalc->mandelbrot = 0;
val = f->previous->action->doit(f->previous, flags, time) | val;
f->fractalc->mandelbrot = m;
f->fractalc->version = vold;
f->fractalc->s = vs;
f->fractalc->rs = rs;
f->fractalc->windowwidth = wwidth;
f->fractalc->windowheight = wheight;
return val;
}
static void myremove(struct filter *f)
{
/*fractalc_resize_to(f->fractalc,f->queue->last->image->width*f->queue->last->image->pixelwidth,f->queue->last->image->height*f->queue->last->image->pixelheight); */
}
static void convertdown(struct filter *f, int *x, int *y)
{
struct subdata *s = (struct subdata *) f->data;
if (s->second != NULL)
s->second->action->convertdown(s->second, x, y);
if (f->previous != NULL)
f->previous->action->convertdown(f->previous, x, y);
}
CONST struct filteraction subwindow_filter = {
"Subwindow",
"Subwindow",
0,
getinstance,
destroyinstance,
doit,
requirement,
initialize,
convertupgeneric,
convertdown,
myremove
};
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