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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "plugin.h"
#include "pixels.h"
// swap selected area on two images
// args: swap sourcex1 sourcey1 sourcex2 sourcey2 destx desty
// (the selection is of equal size on both images)
void swapint(int *a, int *b)
{
int i = *b;
*b = *a;
*a = i;
}
void perform_copy(_frame f1, _frame f2, _args a)
{
if(!a.s) return;
// get args
int sx1, sy1, sx2, sy2, dx1, dy1;
char *t;
sx1 = atoi(a.s);
if(!(t = strstr(a.s, " "))) return;
sy1 = atoi(t);
if(!(t = strstr(t+1, " "))) return;
sx2 = atoi(t);
if(!(t = strstr(t+1, " "))) return;
sy2 = atoi(t);
if(!(t = strstr(t+1, " "))) return;
dx1 = atoi(t);
if(!(t = strstr(t+1, " "))) return;
dy1 = atoi(t);
if(sx1>sx2) swapint(&sx1, &sx2);
if(sy1>sy2) swapint(&sy1, &sy2);
printf("swap: %d %d %d %d - %d %d\n", sx1, sy1, sx2, sy2, dx1, dy1);
int x, y, i, o;
pixel16 c16;
pixels p1(f1), p2(f2);
for(y=sy1; y<=sy2; y++)
for(x=sx1; x<=sx2; x++)
{
if(x>=f1.width || y>=f1.height) continue;
i = dx1+(x-sx1);
o = dy1+(y-sy1);
if(i>=f2.width || o>=f2.height) continue;
p1.moveto(x, y);
p2.moveto(i, o);
c16 = p2.dot16();
p2.dot16(p1.dot16());
p1.dot16(c16);
}
}
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