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// 242.fromage -- does cheezy wipes between two input images.
// by r. luke dubois (luke@music.columbia.edu),
// computer music center, columbia university, 2001.
//
// Pd / Framestein port by Olaf Matthes <olaf.matthes@gmx.de>, June 2002
//
// objects and source are provided without warranty of any kind, express or implied.
//
// usage: fromage <x> <y> <columns> <rows> <flip>
//
#include <stdio.h>
#include <string.h>
#include "plugin.h"
void perform_effect(struct frame f, struct args a)
{
printf("Using fromage as effect does nothing!\n");
}
void perform_copy(struct frame f1, struct frame f2, struct args a)
{
short x, y, w, h, wf, hf, x_c, y_c, c, r, columns, rows, checky, checkx, flip = 0;
pixel16 *pix1_16, *pix2_16;
pixel24 *pix1_24, *pix2_24;
pixel32 *pix1_32, *pix2_32;
char *t;
// get params
if(!a.s) return;
x_c = atoi(a.s);
if(!(t = strstr(a.s, " "))) return;
y_c = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
columns = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
rows = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
flip = atoi(t+1);
printf("fromage: x%d y%d c%d r%d - f%d\n", x_c, y_c, columns, rows, flip);
// calculate size we need to process
wf = f1.width<f2.width ? f1.width : f2.width;
hf = f1.height<f2.height ? f1.height : f2.height;
w = wf / columns; // set column width
h = hf / rows; // set row height
switch(f1.pixelformat)
{
case 16:
for(r = 0; r < (rows + 1); r++)
{
for(y = r * h; y < h * (r + 1); y++)
{
pix1_16 = scanline16(f1, y);
pix2_16 = scanline16(f2, y);
if(y >= hf) continue;
if(y < (y_c + (r * h))) // occlude or don't occlude
{
checky = 1;
}
else
{
checky = 0;
}
if(flip) checky = !checky;
for(c = 0; c < (columns + 1); c++)
{
for(x = c * w; x < w * (c + 1); x++)
{
if (x >= wf) continue;
if(x < (x_c + (c * w))) // occlude or don't occlude
{
checkx = 1;
}
else
{
checkx = 0;
}
if(flip) checkx = !checkx;
if (checkx || checky)
{
pix2_16[x] = pix1_16[x]; // set output1
}
}
}
}
}
break;
case 24:
for(r = 0; r < (rows + 1); r++)
{
for(y = r * h; y < h * (r + 1); y++)
{
pix1_24 = scanline24(f1, y);
pix2_24 = scanline24(f2, y);
if(y >= hf) continue;
if(y < (y_c + (r*h))) // occlude or don't occlude
{
checky = 1;
}
else
{
checky = 0;
}
if(flip) checky = !checky;
for(c = 0; c < (columns + 1); c++)
{
for(x = c * w; x < w * (c + 1); x++)
{
if (x >= wf) continue;
if(x < (x_c + (c * w))) // occlude or don't occlude
{
checkx = 1;
}
else
{
checkx = 0;
}
if(flip) checkx = !checkx;
if (checkx || checky)
{
pix2_24[x] = pix1_24[x]; // set output2
}
}
}
}
}
break;
case 32:
for(r = 0; r < (rows + 1); r++)
{
for(y = r * h; y < h * (r + 1); y++)
{
pix1_32 = scanline32(f1, y);
pix2_32 = scanline32(f2, y);
if(y >= hf) continue;
if(y < (y_c + (r * h))) // occlude or don't occlude
{
checky = 1;
}
else
{
checky = 0;
}
if(flip) checky = !checky;
for(c = 0; c < (columns + 1); c++)
{
for(x = c * w; x < w * (c + 1); x++)
{
if (x >= wf) continue;
if(x < (x_c + (c * w))) // occlude or don't occlude
{
checkx = 1;
}
else
{
checkx = 0;
}
if(flip) checkx = !checkx;
if (checkx || checky)
{
pix2_32[x] = pix1_32[x]; // set output2
}
}
}
}
}
break;
}
}
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