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GoL speed improvements from jacksonmj (thank you very much)

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Cracker64 2011-01-08 17:55:14 -05:00
parent 0958a6e6da
commit 164681f4e6
1 changed files with 6 additions and 40 deletions
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46
src/powder.c
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@ -1236,8 +1236,8 @@ void update_particles_i(pixel *vid, int start, int inc)
if(ISGOL==1&&CGOL>=GSPEED)//GSPEED is frames per generation
{
int createdsomething = 0;
for(nx=4;nx<XRES-4;nx++)
for(ny=4;ny<YRES-4;ny++)
for(nx=CELL;nx<XRES-CELL;nx++)
for(ny=CELL;ny<YRES-CELL;ny++)
{
CGOL=0;
ISGOL=0;
@ -1255,47 +1255,13 @@ void update_particles_i(pixel *vid, int start, int inc)
for( nnx=-1;nnx<2;nnx++)
for( nny=-1;nny<2;nny++)//it will count itself as its own neighbor, which is needed, but will have 1 extra for delete check
{
if(ny+nny<4&&nx+nnx<4){//any way to make wrapping code smaller?
gol2[XRES-5][YRES-5][golnum] ++;
gol2[XRES-5][YRES-5][0] ++;
}
else if(ny+nny<4&&nx+nnx>=XRES-4){
gol2[4][YRES-5][golnum] ++;
gol2[4][YRES-5][0] ++;
}
else if(ny+nny>=YRES-4&&nx+nnx<4){
gol2[XRES-5][4][golnum] ++;
gol2[XRES-5][4][0] ++;
}
else if(nx+nnx<4){
gol2[XRES-5][ny+nny][golnum] ++;
gol2[XRES-5][ny+nny][0] ++;
}
else if(ny+nny<4){
gol2[nx+nnx][YRES-5][golnum] ++;
gol2[nx+nnx][YRES-5][0] ++;
}
else if(ny+nny>=YRES-4&&nx+nnx>=XRES-4){
gol2[4][4][golnum] ++;
gol2[4][4][0] ++;
}
else if(ny+nny>=YRES-4){
gol2[nx+nnx][4][golnum] ++;
gol2[nx+nnx][4][0] ++;
}
else if(nx+nnx>=XRES-4){
gol2[4][ny+nny][golnum] ++;
gol2[4][ny+nny][0] ++;
}
else{
gol2[nx+nnx][ny+nny][golnum] ++;
gol2[nx+nnx][ny+nny][0] ++;
}
gol2[((nx+nnx+XRES-3*CELL)%(XRES-2*CELL))+CELL][((ny+nny+YRES-3*CELL)%(YRES-2*CELL))+CELL][golnum] ++;
gol2[((nx+nnx+XRES-3*CELL)%(XRES-2*CELL))+CELL][((ny+nny+YRES-3*CELL)%(YRES-2*CELL))+CELL][0] ++;
}
}
}
for(nx=4;nx<XRES-4;nx++)
for(ny=4;ny<YRES-4;ny++)
for(nx=CELL;nx<XRES-CELL;nx++)
for(ny=CELL;ny<YRES-CELL;ny++)
{
int neighbors = gol2[nx][ny][0];
if(neighbors==0)