159 lines
3.9 KiB
C
159 lines
3.9 KiB
C
/*
|
||
combine2.c
|
||
mixages...
|
||
----------
|
||
*/
|
||
|
||
#include <stdio.h>
|
||
#include <stdlib.h>
|
||
#include <math.h>
|
||
|
||
#include "../tthimage.h"
|
||
|
||
/*::------------------------------------------------------------------::*/
|
||
/*
|
||
Le coefficient K va de 0 a 10000 !
|
||
*/
|
||
int
|
||
Image_mix(Image_Desc *a, Image_Desc *b, Image_Desc *c, int k)
|
||
{
|
||
int x, y;
|
||
int ra, rb, mk;
|
||
uint8_t *pra, *prb, *prk, *pga, *pgb, *pgk, *pba, *pbb, *pbk;
|
||
int foo;
|
||
|
||
if ( (foo=Image_compare_desc(a, b)) ||
|
||
(foo=Image_compare_desc(a, c)) )
|
||
{
|
||
fprintf(stderr, "Image mix: images differentes %s\n", Image_err2str(foo));
|
||
fprintf(stderr, " a %dx%d b %dx%d c %dx%d\n",
|
||
a->width, a->height,
|
||
b->width, b->height,
|
||
c->width, c->height);
|
||
return IMG_ARE_DIFFERENT;
|
||
}
|
||
|
||
#if DEBUG_LEVEL > 1
|
||
fprintf(stderr, "Mixing: %p and %p to %p, k=%d\n", a, b, c, k);
|
||
#endif
|
||
|
||
mk = 10000 - k;
|
||
for (y=0; y<a->height; y++)
|
||
{
|
||
pra = a->Rpix[y]; prb = b->Rpix[y]; prk = c->Rpix[y];
|
||
pga = a->Gpix[y]; pgb = b->Gpix[y]; pgk = c->Gpix[y];
|
||
pba = a->Bpix[y]; pbb = b->Bpix[y]; pbk = c->Bpix[y];
|
||
|
||
for (x=0; x<a->width; x++)
|
||
{
|
||
ra = pra[x];
|
||
rb = prb[x];
|
||
prk[x] = ((ra * k) + (rb * mk)) / 10000;
|
||
|
||
ra = pga[x];
|
||
rb = pgb[x];
|
||
pgk[x] = ((ra * k) + (rb * mk)) / 10000;
|
||
|
||
ra = pba[x];
|
||
rb = pbb[x];
|
||
pbk[x] = ((ra * k) + (rb * mk)) / 10000;
|
||
}
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
/*::------------------------------------------------------------------::*/
|
||
/* new 6 nov 2001
|
||
Les coefficients K[rgb] vont de 0 a 10000 !
|
||
*/
|
||
int
|
||
Image_mix_rgb(Image_Desc *a, Image_Desc *b, Image_Desc *c,
|
||
int kr, int kg, int kb)
|
||
{
|
||
int foo, x, y;
|
||
uint8_t *pra, *prb, *prk, *pga, *pgb, *pgk, *pba, *pbb, *pbk;
|
||
int ra, rb, mkr, mkg, mkb;
|
||
|
||
if ( (foo=Image_compare_desc(a, b)) ||
|
||
(foo=Image_compare_desc(a, c)) )
|
||
{
|
||
fprintf(stderr, "Image mix: images differentes %s\n", Image_err2str(foo));
|
||
fprintf(stderr, " a %dx%d b %dx%d c %dx%d\n",
|
||
a->width, a->height,
|
||
b->width, b->height,
|
||
c->width, c->height);
|
||
return IMG_ARE_DIFFERENT;
|
||
}
|
||
|
||
mkr = 10000 - kr;
|
||
mkg = 10000 - kg;
|
||
mkb = 10000 - kb;
|
||
for (y=0; y<a->height; y++)
|
||
{
|
||
pra = a->Rpix[y]; prb = b->Rpix[y]; prk = c->Rpix[y];
|
||
pga = a->Gpix[y]; pgb = b->Gpix[y]; pgk = c->Gpix[y];
|
||
pba = a->Bpix[y]; pbb = b->Bpix[y]; pbk = c->Bpix[y];
|
||
|
||
for (x=0; x<a->width; x++)
|
||
{
|
||
ra = pra[x];
|
||
rb = prb[x];
|
||
prk[x] = ((ra * kr) + (rb * mkr)) / 10000;
|
||
|
||
ra = pga[x];
|
||
rb = pgb[x];
|
||
pgk[x] = ((ra * kg) + (rb * mkg)) / 10000;
|
||
|
||
ra = pba[x];
|
||
rb = pbb[x];
|
||
pbk[x] = ((ra * kb) + (rb * mkb)) / 10000;
|
||
|
||
}
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
/*::------------------------------------------------------------------::*/
|
||
/*
|
||
* les deux images sources (a & b) et l'image de destination (d)
|
||
* doivent avoir les m<>mes largeur et hauteur. quand <20> l'image
|
||
* de 'ratio', ses dimensions peuvent <20>tre diff<66>rentes.
|
||
*
|
||
* XXX mettre en place un test unitaire !!!
|
||
*/
|
||
int
|
||
Image_trimix(Image_Desc *a, Image_Desc *b, Image_Desc *c, Image_Desc *d, char w)
|
||
{
|
||
int x, y, rv, gv, bv, cx, cy;
|
||
int ra, ga, ba, rb, gb, bb, rc, gc, bc;
|
||
|
||
fprintf(stderr, "Image tri mix (%02X) : NO SANITY CONTROL\n", w);
|
||
|
||
/*
|
||
* YES, I know that i can optimize this func for speed.
|
||
* I do that when a got a zen-er life. Sorry. man vi, man gcc.
|
||
*/
|
||
for (y=0; y<a->height; y++)
|
||
{
|
||
cy = y % c->height;
|
||
for (x=0; x<a->width; x++)
|
||
{
|
||
cx = x % c->width;
|
||
Image_getRGB(a, x, y, &ra, &ga, &ba);
|
||
Image_getRGB(b, x, y, &rb, &gb, &bb);
|
||
Image_getRGB(c, cx, cy, &rc, &gc, &bc);
|
||
|
||
rv = (ra * rb) + (rc * (256-rb));
|
||
gv = (ga * gb) + (gc * (256-gb));
|
||
bv = (ba * bb) + (bc * (256-bb));
|
||
|
||
(d->Rpix[y])[x] = rv/256;
|
||
(d->Gpix[y])[x] = gv/256;
|
||
(d->Bpix[y])[x] = bv/256;
|
||
}
|
||
}
|
||
|
||
return FUNC_IS_ALPHA;
|
||
}
|
||
/*::------------------------------------------------------------------::*/
|