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#include <config.h>
#ifndef _plan9_
#ifndef NO_MALLOC_H
#include <malloc.h>
#endif
#include <config.h>
#ifdef HAVE_ALLOCA_H
#include <alloca.h>
#endif
#include <stdlib.h>
#else
#include <u.h>
#include <libc.h>
#include <stdio.h>
#endif
#define SLARGEITER
#include <filter.h>
#include <xthread.h>
#define NCOLORS 256
#define IMAGETYPE SMALLITER
#define spixel_t pixel8_t
struct siterdata {
struct palette *palette;
};
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 siterdata *s = (struct siterdata *) f->data;
inhermisc(f, i);
if (!inherimage(f, i, TOUCHIMAGE, 0, 0, s->palette, 0, 0))
return 0;
return (f->previous->action->initialize(f->previous, i));
}
static struct filter *getinstance(CONST struct filteraction *a)
{
struct filter *f = createfilter(a);
struct siterdata *i = (struct siterdata *) calloc(1, sizeof(*i));
i->palette =
createpalette(0, 65536, IMAGETYPE, 0, 65536, NULL, NULL, NULL,
NULL, NULL);
f->data = i;
f->name = "Smalliter image convertor";
return (f);
}
static void convert8(void *data, struct taskinfo *task, int r1, int r2)
{
struct filter *f = (struct filter *) data;
struct image *img1 = f->childimage, *img2 = f->image;
unsigned char *src, *srcend;
unsigned int *pixels = img2->palette->pixels;
pixel8_t *dest;
int i;
for (i = r1; i < r2; i++) {
src = img1->currlines[i];
dest = img2->currlines[i];
srcend = src + img1->width;
for (; src < srcend; src++, dest++)
*dest = pixels[*src];
}
}
static void convert16(void *data, struct taskinfo *task, int r1, int r2)
{
struct filter *f = (struct filter *) data;
struct image *img1 = f->childimage, *img2 = f->image;
unsigned char *src, *srcend;
unsigned int *pixels = img2->palette->pixels;
pixel16_t *dest;
int i;
for (i = r1; i < r2; i++) {
src = img1->currlines[i];
dest = (pixel16_t *) img2->currlines[i];
srcend = src + img1->width;
for (; src < srcend; src++, dest++) {
*dest = pixels[*src];
}
}
}
#ifdef STRUECOLOR24
#include <true24.h>
static void convert24(void *data, struct taskinfo *task, int r1, int r2)
{
struct filter *f = (struct filter *) data;
struct image *img1 = f->childimage, *img2 = f->image;
unsigned char *src, *srcend;
unsigned int *pixels = img2->palette->pixels;
cpixel_t *dest;
int i;
for (i = r1; i < r2; i++) {
src = img1->currlines[i];
dest = (cpixel_t *) img2->currlines[i];
srcend = src + img1->width;
for (; src < srcend; src++, dest += 3)
p_set(dest, pixels[*src]);
}
}
#endif
static void convert32(void *data, struct taskinfo *task, int r1, int r2)
{
struct filter *f = (struct filter *) data;
struct image *img1 = f->childimage, *img2 = f->image;
unsigned char *src, *srcend;
unsigned int *pixels = img2->palette->pixels;
pixel32_t *dest;
int i;
for (i = r1; i < r2; i++) {
src = img1->currlines[i];
dest = (pixel32_t *) img2->currlines[i];
srcend = src + img1->width;
for (; src < srcend; src++, dest++)
*dest = pixels[*src];
}
}
static void destroyinstance(struct filter *f)
{
struct siterdata *i = (struct siterdata *) f->data;
destroypalette(i->palette);
free(f->data);
destroyinheredimage(f);
free(f);
}
static int doit(struct filter *f, int flags, int time)
{
int val;
int size;
updateinheredimage(f);
if (f->image->palette->size < 256)
size = f->image->palette->size;
else
size = 256;
if (size != f->childimage->palette->size)
f->childimage->palette->size =
size, f->childimage->palette->version++;
val = f->previous->action->doit(f->previous, flags, time);
if (f->image->palette->type != SMALLITER
|| f->image->currlines[0] != f->childimage->currlines[0]) {
drivercall(*f->image,
xth_function(convert8, f, f->image->height),
xth_function(convert16, f, f->image->height),
xth_function(convert24, f, f->image->height),
xth_function(convert32, f, f->image->height))}
xth_sync();
return val;
}
CONST struct filteraction smalliter_filter = {
"Smalliter image convertor",
"smalliter",
0,
getinstance,
destroyinstance,
doit,
requirement,
initialize,
convertupgeneric,
convertdowngeneric,
NULL
};
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