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//
// convolution - 5x5 convolution kernel matrix calculation
//
// written by Olaf Matthes <olaf.matthes@gmx.de>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// usage: convolution <matrix[0]> <matrix[1]> <matrix[2]> <matrix[3]> <matrix[4]>
// <matrix[5]> <matrix[6]> <matrix[7]> <matrix[8]> <matrix[9]>
// <matrix[10]> <matrix[11]> <matrix[12]> <matrix[13]> <matrix[14]>
// <matrix[15]> <matrix[16]> <matrix[17]> <matrix[18]> <matrix[19]>
// <matrix[20]> <matrix[21]> <matrix[22]> <matrix[23]> <matrix[24]>
// <scale> <shift>
//
// KNOWN BUG: produces ugly colors (due to rounding error I guess)
//
#include <stdio.h>
#include <string.h>
#include "plugin.h"
void perform_effect(struct frame f, struct args a)
{
short x, y;
long matrix[25], scale, shift;
pixel16 *p16[5], *c16;
pixel24 *p24[5], *c24;
pixel32 *p32[5], *c32;
long r, g, b;
char *t;
// get params
if(!a.s) return;
matrix[0] = atoi(a.s);
if(!(t = strstr(a.s, " "))) return;
matrix[1] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[2] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[3] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[4] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[5] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[6] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[7] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[8] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[9] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[10] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[11] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[12] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[13] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[14] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[15] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[16] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[17] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[18] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[19] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[20] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[21] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[22] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[23] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
matrix[24] = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
scale = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
shift = atoi(t+1);
if(scale == 0) scale = 1;
printf("convolution: matrix %d %d %d %d %d\n", matrix[0], matrix[1], matrix[2], matrix[3], matrix[4]);
printf(" %d %d %d %d %d\n", matrix[5], matrix[6], matrix[7], matrix[8], matrix[9]);
printf(" %d %d %d %d %d\n", matrix[10], matrix[11], matrix[12], matrix[13], matrix[14]);
printf(" %d %d %d %d %d\n", matrix[15], matrix[16], matrix[17], matrix[18], matrix[19]);
printf(" %d %d %d %d %d\n", matrix[20], matrix[21], matrix[22], matrix[23], matrix[24]);
printf(" scale %d, shift %d\n", scale, shift);
switch(f.pixelformat)
{
case 16:
for(y = 0; y < f.height; y++)
{
if(y > 5) // we have read all 5 lines needed for calculation
{
c16 = scanline16(f, y - 3); // this will become our newly calculated line
for(x = 2; x < f.width - 2; x++)
{
r = (r16(p16[(y-5)%5][x-2])*matrix[0] + r16(p16[(y-5)%5][x-1])*matrix[1] + r16(p16[(y-5)%5][x])*matrix[2] + r16(p16[(y-5)%5][x+1])*matrix[3] + r16(p16[(y-5)%5][x+2])*matrix[4] +
r16(p16[(y-4)%5][x-2])*matrix[5] + r16(p16[(y-4)%5][x-1])*matrix[6] + r16(p16[(y-3)%5][x])*matrix[7] + r16(p16[(y-4)%5][x+1])*matrix[8] + r16(p16[(y-4)%5][x+2])*matrix[9] +
r16(p16[(y-3)%5][x-2])*matrix[10] + r16(p16[(y-3)%5][x-1])*matrix[11] + r16(p16[(y-3)%5][x])*matrix[12] + r16(p16[(y-3)%5][x+1])*matrix[13] + r16(p16[(y-3)%5][x+2])*matrix[14] +
r16(p16[(y-2)%5][x-2])*matrix[15] + r16(p16[(y-2)%5][x-1])*matrix[16] + r16(p16[(y-2)%5][x])*matrix[17] + r16(p16[(y-2)%5][x+1])*matrix[18] + r16(p16[(y-2)%5][x+2])*matrix[19] +
r16(p16[(y-1)%5][x-2])*matrix[20] + r16(p16[(y-1)%5][x-1])*matrix[21] + r16(p16[(y-1)%5][x])*matrix[22] + r16(p16[(y-1)%5][x+1])*matrix[23] + r16(p16[(y-1)%5][x+2])*matrix[24])/scale - shift;
g = (g16(p16[(y-5)%5][x-2])*matrix[0] + g16(p16[(y-5)%5][x-1])*matrix[1] + g16(p16[(y-5)%5][x])*matrix[2] + g16(p16[(y-5)%5][x+1])*matrix[3] + g16(p16[(y-5)%5][x+2])*matrix[4] +
g16(p16[(y-4)%5][x-2])*matrix[5] + g16(p16[(y-4)%5][x-1])*matrix[6] + g16(p16[(y-3)%5][x])*matrix[7] + g16(p16[(y-4)%5][x+1])*matrix[8] + g16(p16[(y-4)%5][x+2])*matrix[9] +
g16(p16[(y-3)%5][x-2])*matrix[10] + g16(p16[(y-3)%5][x-1])*matrix[11] + g16(p16[(y-3)%5][x])*matrix[12] + g16(p16[(y-3)%5][x+1])*matrix[13] + g16(p16[(y-3)%5][x+2])*matrix[14] +
g16(p16[(y-2)%5][x-2])*matrix[15] + g16(p16[(y-2)%5][x-1])*matrix[16] + g16(p16[(y-2)%5][x])*matrix[17] + g16(p16[(y-2)%5][x+1])*matrix[18] + g16(p16[(y-2)%5][x+2])*matrix[19] +
g16(p16[(y-1)%5][x-2])*matrix[20] + g16(p16[(y-1)%5][x-1])*matrix[21] + g16(p16[(y-1)%5][x])*matrix[22] + g16(p16[(y-1)%5][x+1])*matrix[23] + g16(p16[(y-1)%5][x+2])*matrix[24])/scale - shift;
b = (b16(p16[(y-5)%5][x-2])*matrix[0] + b16(p16[(y-5)%5][x-1])*matrix[1] + b16(p16[(y-5)%5][x])*matrix[2] + b16(p16[(y-5)%5][x+1])*matrix[3] + b16(p16[(y-5)%5][x+2])*matrix[4] +
b16(p16[(y-4)%5][x-2])*matrix[5] + b16(p16[(y-4)%5][x-1])*matrix[6] + b16(p16[(y-3)%5][x])*matrix[7] + b16(p16[(y-4)%5][x+1])*matrix[8] + b16(p16[(y-4)%5][x+2])*matrix[9] +
b16(p16[(y-3)%5][x-2])*matrix[10] + b16(p16[(y-3)%5][x-1])*matrix[11] + b16(p16[(y-3)%5][x])*matrix[12] + b16(p16[(y-3)%5][x+1])*matrix[13] + b16(p16[(y-3)%5][x+2])*matrix[14] +
b16(p16[(y-2)%5][x-2])*matrix[15] + b16(p16[(y-2)%5][x-1])*matrix[16] + b16(p16[(y-2)%5][x])*matrix[17] + b16(p16[(y-2)%5][x+1])*matrix[18] + b16(p16[(y-2)%5][x+2])*matrix[19] +
b16(p16[(y-1)%5][x-2])*matrix[20] + b16(p16[(y-1)%5][x-1])*matrix[21] + b16(p16[(y-1)%5][x])*matrix[22] + b16(p16[(y-1)%5][x+1])*matrix[23] + b16(p16[(y-1)%5][x+2])*matrix[24])/scale - shift;
c16[x] = rgbtocolor16(klamp255(r), klamp255(g), klamp255(b));
}
}
// read in lines needed for calculation
p16[y % 5] = scanline16(f, y);
}
break;
case 24:
for(y=0; y<f.height; y++)
{
if(y > 5) // we have read all 5 lines needed for calculation
{
c24 = scanline24(f, y - 3); // this will become our newly calculated line
for(x = 2; x < f.width - 2; x++)
{
r = (r24(p24[(y-5)%5][x-2])*matrix[0] + r24(p24[(y-5)%5][x-1])*matrix[1] + r24(p24[(y-5)%5][x])*matrix[2] + r24(p24[(y-5)%5][x+1])*matrix[3] + r24(p24[(y-5)%5][x+2])*matrix[4] +
r24(p24[(y-4)%5][x-2])*matrix[5] + r24(p24[(y-4)%5][x-1])*matrix[6] + r24(p24[(y-3)%5][x])*matrix[7] + r24(p24[(y-4)%5][x+1])*matrix[8] + r24(p24[(y-4)%5][x+2])*matrix[9] +
r24(p24[(y-3)%5][x-2])*matrix[10] + r24(p24[(y-3)%5][x-1])*matrix[11] + r24(p24[(y-3)%5][x])*matrix[12] + r24(p24[(y-3)%5][x+1])*matrix[13] + r24(p24[(y-3)%5][x+2])*matrix[14] +
r24(p24[(y-2)%5][x-2])*matrix[15] + r24(p24[(y-2)%5][x-1])*matrix[16] + r24(p24[(y-2)%5][x])*matrix[17] + r24(p24[(y-2)%5][x+1])*matrix[18] + r24(p24[(y-2)%5][x+2])*matrix[19] +
r24(p24[(y-1)%5][x-2])*matrix[20] + r24(p24[(y-1)%5][x-1])*matrix[21] + r24(p24[(y-1)%5][x])*matrix[22] + r24(p24[(y-1)%5][x+1])*matrix[23] + r24(p24[(y-1)%5][x+2])*matrix[24])/scale - shift;
g = (g24(p24[(y-5)%5][x-2])*matrix[0] + g24(p24[(y-5)%5][x-1])*matrix[1] + g24(p24[(y-5)%5][x])*matrix[2] + g24(p24[(y-5)%5][x+1])*matrix[3] + g24(p24[(y-5)%5][x+2])*matrix[4] +
g24(p24[(y-4)%5][x-2])*matrix[5] + g24(p24[(y-4)%5][x-1])*matrix[6] + g24(p24[(y-3)%5][x])*matrix[7] + g24(p24[(y-4)%5][x+1])*matrix[8] + g24(p24[(y-4)%5][x+2])*matrix[9] +
g24(p24[(y-3)%5][x-2])*matrix[10] + g24(p24[(y-3)%5][x-1])*matrix[11] + g24(p24[(y-3)%5][x])*matrix[12] + g24(p24[(y-3)%5][x+1])*matrix[13] + g24(p24[(y-3)%5][x+2])*matrix[14] +
g24(p24[(y-2)%5][x-2])*matrix[15] + g24(p24[(y-2)%5][x-1])*matrix[16] + g24(p24[(y-2)%5][x])*matrix[17] + g24(p24[(y-2)%5][x+1])*matrix[18] + g24(p24[(y-2)%5][x+2])*matrix[19] +
g24(p24[(y-1)%5][x-2])*matrix[20] + g24(p24[(y-1)%5][x-1])*matrix[21] + g24(p24[(y-1)%5][x])*matrix[22] + g24(p24[(y-1)%5][x+1])*matrix[23] + g24(p24[(y-1)%5][x+2])*matrix[24])/scale - shift;
b = (b24(p24[(y-5)%5][x-2])*matrix[0] + b24(p24[(y-5)%5][x-1])*matrix[1] + b24(p24[(y-5)%5][x])*matrix[2] + b24(p24[(y-5)%5][x+1])*matrix[3] + b24(p24[(y-5)%5][x+2])*matrix[4] +
b24(p24[(y-4)%5][x-2])*matrix[5] + b24(p24[(y-4)%5][x-1])*matrix[6] + b24(p24[(y-3)%5][x])*matrix[7] + b24(p24[(y-4)%5][x+1])*matrix[8] + b24(p24[(y-4)%5][x+2])*matrix[9] +
b24(p24[(y-3)%5][x-2])*matrix[10] + b24(p24[(y-3)%5][x-1])*matrix[11] + b24(p24[(y-3)%5][x])*matrix[12] + b24(p24[(y-3)%5][x+1])*matrix[13] + b24(p24[(y-3)%5][x+2])*matrix[14] +
b24(p24[(y-2)%5][x-2])*matrix[15] + b24(p24[(y-2)%5][x-1])*matrix[16] + b24(p24[(y-2)%5][x])*matrix[17] + b24(p24[(y-2)%5][x+1])*matrix[18] + b24(p24[(y-2)%5][x+2])*matrix[19] +
b24(p24[(y-1)%5][x-2])*matrix[20] + b24(p24[(y-1)%5][x-1])*matrix[21] + b24(p24[(y-1)%5][x])*matrix[22] + b24(p24[(y-1)%5][x+1])*matrix[23] + b24(p24[(y-1)%5][x+2])*matrix[24])/scale - shift;
c24[x] = rgbtocolor24(klamp255(r), klamp255(g), klamp255(b));
}
}
// read in lines needed for calculation
p24[y % 5] = scanline24(f, y);
}
break;
case 32:
for(y=0; y<f.height; y++)
{
if(y > 5) // we have read all 5 lines needed for calculation
{
c32 = scanline32(f, y - 3); // this will become our newly calculated line
for(x = 2; x < f.width - 2; x++)
{
r = (r32(p32[(y-5)%5][x-2])*matrix[0] + r32(p32[(y-5)%5][x-1])*matrix[1] + r32(p32[(y-5)%5][x])*matrix[2] + r32(p32[(y-5)%5][x+1])*matrix[3] + r32(p32[(y-5)%5][x+2])*matrix[4] +
r32(p32[(y-4)%5][x-2])*matrix[5] + r32(p32[(y-4)%5][x-1])*matrix[6] + r32(p32[(y-3)%5][x])*matrix[7] + r32(p32[(y-4)%5][x+1])*matrix[8] + r32(p32[(y-4)%5][x+2])*matrix[9] +
r32(p32[(y-3)%5][x-2])*matrix[10] + r32(p32[(y-3)%5][x-1])*matrix[11] + r32(p32[(y-3)%5][x])*matrix[12] + r32(p32[(y-3)%5][x+1])*matrix[13] + r32(p32[(y-3)%5][x+2])*matrix[14] +
r32(p32[(y-2)%5][x-2])*matrix[15] + r32(p32[(y-2)%5][x-1])*matrix[16] + r32(p32[(y-2)%5][x])*matrix[17] + r32(p32[(y-2)%5][x+1])*matrix[18] + r32(p32[(y-2)%5][x+2])*matrix[19] +
r32(p32[(y-1)%5][x-2])*matrix[20] + r32(p32[(y-1)%5][x-1])*matrix[21] + r32(p32[(y-1)%5][x])*matrix[22] + r32(p32[(y-1)%5][x+1])*matrix[23] + r32(p32[(y-1)%5][x+2])*matrix[24])/scale - shift;
g = (g32(p32[(y-5)%5][x-2])*matrix[0] + g32(p32[(y-5)%5][x-1])*matrix[1] + g32(p32[(y-5)%5][x])*matrix[2] + g32(p32[(y-5)%5][x+1])*matrix[3] + g32(p32[(y-5)%5][x+2])*matrix[4] +
g32(p32[(y-4)%5][x-2])*matrix[5] + g32(p32[(y-4)%5][x-1])*matrix[6] + g32(p32[(y-3)%5][x])*matrix[7] + g32(p32[(y-4)%5][x+1])*matrix[8] + g32(p32[(y-4)%5][x+2])*matrix[9] +
g32(p32[(y-3)%5][x-2])*matrix[10] + g32(p32[(y-3)%5][x-1])*matrix[11] + g32(p32[(y-3)%5][x])*matrix[12] + g32(p32[(y-3)%5][x+1])*matrix[13] + g32(p32[(y-3)%5][x+2])*matrix[14] +
g32(p32[(y-2)%5][x-2])*matrix[15] + g32(p32[(y-2)%5][x-1])*matrix[16] + g32(p32[(y-2)%5][x])*matrix[17] + g32(p32[(y-2)%5][x+1])*matrix[18] + g32(p32[(y-2)%5][x+2])*matrix[19] +
g32(p32[(y-1)%5][x-2])*matrix[20] + g32(p32[(y-1)%5][x-1])*matrix[21] + g32(p32[(y-1)%5][x])*matrix[22] + g32(p32[(y-1)%5][x+1])*matrix[23] + g32(p32[(y-1)%5][x+2])*matrix[24])/scale - shift;
b = (b32(p32[(y-5)%5][x-2])*matrix[0] + b32(p32[(y-5)%5][x-1])*matrix[1] + b32(p32[(y-5)%5][x])*matrix[2] + b32(p32[(y-5)%5][x+1])*matrix[3] + b32(p32[(y-5)%5][x+2])*matrix[4] +
b32(p32[(y-4)%5][x-2])*matrix[5] + b32(p32[(y-4)%5][x-1])*matrix[6] + b32(p32[(y-3)%5][x])*matrix[7] + b32(p32[(y-4)%5][x+1])*matrix[8] + b32(p32[(y-4)%5][x+2])*matrix[9] +
b32(p32[(y-3)%5][x-2])*matrix[10] + b32(p32[(y-3)%5][x-1])*matrix[11] + b32(p32[(y-3)%5][x])*matrix[12] + b32(p32[(y-3)%5][x+1])*matrix[13] + b32(p32[(y-3)%5][x+2])*matrix[14] +
b32(p32[(y-2)%5][x-2])*matrix[15] + b32(p32[(y-2)%5][x-1])*matrix[16] + b32(p32[(y-2)%5][x])*matrix[17] + b32(p32[(y-2)%5][x+1])*matrix[18] + b32(p32[(y-2)%5][x+2])*matrix[19] +
b32(p32[(y-1)%5][x-2])*matrix[20] + b32(p32[(y-1)%5][x-1])*matrix[21] + b32(p32[(y-1)%5][x])*matrix[22] + b32(p32[(y-1)%5][x+1])*matrix[23] + b32(p32[(y-1)%5][x+2])*matrix[24])/scale - shift;
c32[x] = rgbtocolor32(klamp255(r), klamp255(g), klamp255(b));
}
}
// read in lines needed for calculation
p32[y % 5] = scanline32(f, y);
}
break;
}
}
void perform_copy(struct frame f1, struct frame f2, struct args a)
{
printf("Using convolution as copy operation does nothing!\n");
}
|
