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#include <config.h>
#ifndef _plan9_
#ifdef NO_MALLOC_H
#include <stdlib.h>
#else
#include <malloc.h>
#endif
#include <stdio.h>
#else
#include <u.h>
#include <libc.h>
#include <stdio.h>
#endif
#include <filter.h>
#include <fractal.h>
#include <xthread.h>
struct palettedata {
struct palette *palette;
int active;
unsigned int table[256];
};
#include <c256.h>
#define cpalette palette8
#include "paletted.c"
#include <truecolor.h>
#define cpalette palette32
#include "paletted.c"
#include <true24.h>
#define cpalette palette24
#include "paletted.c"
#include <hicolor.h>
#define cpalette palette16
#include "paletted.c"
static void mysetcolor(struct palette *p, int start, int end, rgb_t * rgb)
{
p->data = &p;
}
static int requirement(struct filter *f, struct requirements *r)
{
f->req = *r;
r->nimages = 1;
r->flags &= ~(IMAGEDATA);
r->supportedmask = MASK1BPP | MASK2BPP | MASK3BPP | MASK4BPP;
return (f->next->action->requirement(f->next, r));
}
static int initialize(struct filter *f, struct initdata *i)
{
struct palettedata *s = (struct palettedata *) f->data;
inhermisc(f, i);
if (i->image->palette->type != C256
|| i->image->palette->setpalette == NULL) {
if (datalost(f, i) || i->image->version != f->imageversion
|| !s->active) {
if (!s->active) {
struct palette *palette;
palette = clonepalette(i->image->palette);
restorepalette(s->palette, palette);
destroypalette(palette);
}
s->palette->data = s;
if (i->image->palette->maxentries < 256)
s->palette->maxentries = i->image->palette->maxentries;
else
s->palette->maxentries = 256;
s->active = 1;
}
if (!inherimage
(f, i, TOUCHIMAGE | IMAGEDATA, 0, 0, s->palette, 0, 0))
return 0;
setfractalpalette(f, s->palette);
f->queue->saveimage = f->childimage;
f->queue->palettechg = f;
} else {
if (s->active) {
f->image = i->image;
restorepalette(f->image->palette, s->palette);
}
s->active = 0;
}
return (f->previous->action->initialize(f->previous, i));
}
static struct filter *getinstance(CONST struct filteraction *a)
{
struct filter *f = createfilter(a);
struct palettedata *i = (struct palettedata *) calloc(1, sizeof(*i));
i->active = 0;
i->palette =
createpalette(0, 256, C256, 0, 256, NULL, mysetcolor, NULL, NULL,
NULL);
f->childimage = NULL;
f->data = i;
f->name = "Palette emulator";
return (f);
}
static void destroyinstance(struct filter *f)
{
struct palettedata *i = (struct palettedata *) f->data;
destroypalette(i->palette);
destroyinheredimage(f);
free(f->data);
free(f);
}
static int doit(struct filter *f, int flags, int time1)
{
int val;
int time = time1;
struct palettedata *s = (struct palettedata *) f->data;
if (s->active)
updateinheredimage(f);
if (flags & PALETTEONLY)
val = 0;
else
val = f->previous->action->doit(f->previous, flags, time);
if (s->active) {
int i;
if (s->palette->data != NULL) {
val |= CHANGED;
restorepalette(f->image->palette, f->childimage->palette);
for (i = 0; i < 256; i++) {
s->table[i] =
f->image->palette->pixels[i % f->image->palette->size];
}
s->palette->data = NULL;
}
drivercall(*f->image,
xth_function(palette8, f, f->image->height),
xth_function(palette16, f, f->image->height),
xth_function(palette24, f, f->image->height),
xth_function(palette32, f, f->image->height));
xth_sync();
}
return val;
}
static void myremovefilter(struct filter *f)
{
struct palettedata *s = (struct palettedata *) f->data;
if (s->active) {
restorepalette(f->image->palette, s->palette);
}
}
CONST struct filteraction palette_filter = {
"Palette emulator",
"palette",
0,
getinstance,
destroyinstance,
doit,
requirement,
initialize,
convertupgeneric,
convertdowngeneric,
myremovefilter
};
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