libtthimage/Lib/combine4.c

176 lines
3.7 KiB
C
Raw Normal View History

2022-06-26 11:06:35 +02:00
/*
combine4.c
----------
*/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
2022-06-27 00:48:18 +02:00
#include "../tthimage.h"
2022-06-26 11:06:35 +02:00
/*::------------------------------------------------------------------::*/
/*
*
*/
int
Image_combine_4img_0( Image_Desc *s1, Image_Desc *s2,
Image_Desc *s3, Image_Desc *s4,
Image_Desc *dst)
{
int x, y;
int r, g, b;
fprintf(stderr, "Image combine 4img 0: NO SANITY CONTROL !\n");
r = g = b = 0; /* warning killer */
for (y=0; y<dst->height; y++)
{
for (x=0; x<dst->width; x++)
{
if ( (x&1) && (y&1) )
{
r = (s1->Rpix[y])[x];
g = (s1->Gpix[y])[x];
b = (s1->Bpix[y])[x];
}
if ( !(x&1) && (y&1) )
{
r = (s2->Rpix[y])[x];
g = (s2->Gpix[y])[x];
b = (s2->Bpix[y])[x];
}
if ( (x&1) && !(y&1) )
{
r = (s3->Rpix[y])[x];
g = (s3->Gpix[y])[x];
b = (s3->Bpix[y])[x];
}
if ( !(x&1) && !(y&1) )
{
r = (s4->Rpix[y])[x];
g = (s4->Gpix[y])[x];
b = (s4->Bpix[y])[x];
}
(dst->Rpix[y])[x] = r;
(dst->Gpix[y])[x] = g;
(dst->Bpix[y])[x] = b;
}
}
return FUNC_IS_ALPHA;
}
/*::------------------------------------------------------------------::*/
/*
* first step : 10 avril 2009
*/
int
Image_combine_4img_1( Image_Desc *s1, Image_Desc *s2,
Image_Desc *s3, Image_Desc *s4,
Image_Desc *dst)
{
Image_Desc *source;
int x, y, alea;
int r, g, b;
fprintf(stderr, "%s: NO SANITY CONTROL !\n", __func__);
r = g = b = 0; /* warning killer */
source = NULL; /* another warning killer */
for (y=0; y<dst->height; y++)
{
for (x=0; x<dst->width; x++)
{
alea = rand() % 4;
switch (alea)
{
case 0: source=s1; break;
case 1: source=s2; break;
case 2: source=s3; break;
case 3: source=s4; break;
}
r = (source->Rpix[y])[x];
g = (source->Gpix[y])[x];
b = (source->Bpix[y])[x];
(dst->Rpix[y])[x] = r;
(dst->Gpix[y])[x] = g;
(dst->Bpix[y])[x] = b;
}
}
return 9999;
}
/*::------------------------------------------------------------------::*/
/*
* hacked the 11 april 2009 - avenue ST Exupery
*/
int
Image_combine_4img_2( Image_Desc *s1, Image_Desc *s2,
Image_Desc *s3, Image_Desc *s4,
Image_Desc *dst, int meth_reduc)
{
Image_Desc *r1, *r2, *r3, *r4;
int x, y;
int h2, w2;
fprintf(stderr, "*** %s: NO SANITY CONTROL !\n", __func__);
r1 = Image_MakeHalfSize(s1, meth_reduc);
r2 = Image_MakeHalfSize(s2, meth_reduc);
r3 = Image_MakeHalfSize(s3, meth_reduc);
r4 = Image_MakeHalfSize(s4, meth_reduc);
#if DEBUG_LEVEL
fprintf(stderr, "reduced pictures: %p %p %p %p\n", r1, r2, r3, r4);
#endif
h2 = r1->height;
w2 = r1->width;
for (y=0; y<h2; y++)
{
for (x=0; x<w2; x++)
{
(dst->Rpix[y])[x] = (r1->Rpix[y])[x];
(dst->Rpix[y])[x+w2] = (r2->Rpix[y])[x];
(dst->Rpix[y+h2])[x] = (r3->Rpix[y])[x];
(dst->Rpix[y+h2])[x+w2] = (r4->Rpix[y])[x];
(dst->Gpix[y])[x] = (r1->Gpix[y])[x];
(dst->Gpix[y])[x+w2] = (r2->Gpix[y])[x];
(dst->Gpix[y+h2])[x] = (r3->Gpix[y])[x];
(dst->Gpix[y+h2])[x+w2] = (r4->Gpix[y])[x];
(dst->Bpix[y])[x] = (r1->Bpix[y])[x];
(dst->Bpix[y])[x+w2] = (r2->Bpix[y])[x];
(dst->Bpix[y+h2])[x] = (r3->Bpix[y])[x];
(dst->Bpix[y+h2])[x+w2] = (r4->Bpix[y])[x];
}
}
Image_DeAllocate(r1); free(r1);
Image_DeAllocate(r2); free(r2);
Image_DeAllocate(r3); free(r3);
Image_DeAllocate(r4); free(r4);
return 9999;
}
/*::------------------------------------------------------------------::*/
int
Image_combine_4img_3( Image_Desc *s1, Image_Desc *s2,
Image_Desc *s3, Image_Desc *s4,
Image_Desc *dst, int k)
{
#if DEBUG_LEVEL
fprintf(stderr, "%s : %p %p %p %p --> %p\n", __func__,
s1, s2, s3, s4, dst);
#endif
fprintf(stderr, "%s: NO SANITY CONTROL !\n", __func__);
return FULL_NUCKED;
}
/*::------------------------------------------------------------------::*/