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#include <string.h>
#include "plugin.h"
void perform_effect(_frame f, _args a)
{
char *t;
short x, y;
pixel16 c16;
pixel24 c24;
pixel32 c32;
byte r, g, b;
char *ret_r, *ret_g, *ret_b;
if(!a.s) return;
// get x and y params
x = atoi(a.s);
if(!(t = strstr(a.s, " "))) return;
y = atoi(t+1);
// get returnvaluereceivenames
if(!(t = strstr(t+1, " "))) return;
ret_r = t+1;
if(!(t = strstr(t+1, " "))) return;
ret_g = t+1;
t[0]=0;
if(!(t = strstr(t+1, " "))) return;
ret_b = t+1;
t[0]=0;
if(x<0||x>=f.width) return;
if(y<0||y>=f.height) return;
switch(f.pixelformat)
{
case 16:
c16 = scanline16(f, y)[x];
r = r16(c16);
g = g16(c16);
b = b16(c16);
break;
case 24:
c24 = scanline24(f, y)[x];
r = r24(c24);
g = g24(c24);
b = b24(c24);
break;
case 32:
c32 = scanline32(f, y)[x];
r = r32(c32);
g = g32(c32);
b = b32(c32);
break;
}
// return-values:
//
// framestein will send data given in the form "pd_receiver_name=value"
// back to pd.
sprintf(a.ret, "%s=%d;%s=%d;%s=%d", ret_b, b, ret_g, g, ret_r, r);
}
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