You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
142 lines
3.5 KiB
142 lines
3.5 KiB
int pixel_to_index(int2 dimensions, int2 pixel) {
|
|
|
|
if (pixel.x >= 0 && pixel.x <= dimensions.x &&
|
|
pixel.y >= 0 && pixel.y <= dimensions.y ){
|
|
|
|
return pixel.y * dimensions.x + pixel.x;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
|
|
__kernel void conways (
|
|
global int2* image_res,
|
|
__write_only image2d_t image,
|
|
global char* first_node_buffer,
|
|
global char* second_node_buffer,
|
|
global char* buffer_flip
|
|
){
|
|
|
|
size_t x_pixel = get_global_id(0);
|
|
size_t y_pixel = get_global_id(1);
|
|
|
|
|
|
//printf(": %i", y_pixel);
|
|
|
|
int2 pixel = (int2)(x_pixel, y_pixel);
|
|
|
|
//if (pixel.x > 1800)
|
|
// printf("%i, %i", pixel.x, pixel.y);
|
|
|
|
float4 dead = (float4)(.49, .68, .81, 1);
|
|
float4 alive = (float4)(.49, .68, .71, .3);
|
|
|
|
// add all 8 blocks to neghbors
|
|
int neighbors = 0;
|
|
int val = 0;
|
|
|
|
if (*buffer_flip == 0){
|
|
|
|
// Top
|
|
val = pixel_to_index(*image_res, (int2)(pixel.x, pixel.y+1));
|
|
if (val >= 0)
|
|
neighbors += first_node_buffer[val];
|
|
|
|
// Top Right
|
|
val = pixel_to_index(*image_res, (int2)(pixel.x+1, pixel.y+1));
|
|
if (val >= 0)
|
|
neighbors += first_node_buffer[val];
|
|
|
|
// Right
|
|
val = pixel_to_index(*image_res, (int2)(pixel.x+1, pixel.y));
|
|
if (val >= 0)
|
|
neighbors += first_node_buffer[val];
|
|
|
|
// Bottom Right
|
|
val = pixel_to_index(*image_res, (int2)(pixel.x+1, pixel.y-1));
|
|
if (val >= 0)
|
|
neighbors += first_node_buffer[val];
|
|
|
|
// Bottom
|
|
val = pixel_to_index(*image_res, (int2)(pixel.x, pixel.y-1));
|
|
if (val >= 0)
|
|
neighbors += first_node_buffer[val];
|
|
|
|
// Bottom Left
|
|
val = pixel_to_index(*image_res, (int2)(pixel.x-1, pixel.y-1));
|
|
if (val >= 0)
|
|
neighbors += first_node_buffer[val];
|
|
|
|
// Left
|
|
val = pixel_to_index(*image_res, (int2)(pixel.x-1, pixel.y));
|
|
if (val >= 0)
|
|
neighbors += first_node_buffer[val];
|
|
|
|
// Top Left
|
|
val = pixel_to_index(*image_res, (int2)(pixel.x-1, pixel.y+1));
|
|
if (val >= 0)
|
|
neighbors += first_node_buffer[val];
|
|
|
|
int base = pixel_to_index(*image_res, pixel);
|
|
if (neighbors == 3 || (neighbors == 2 && first_node_buffer[base])){
|
|
write_imagef(image, pixel, alive);
|
|
second_node_buffer[base] = 1;
|
|
} else {
|
|
write_imagef(image, pixel, dead);
|
|
second_node_buffer[base] = 0;
|
|
}
|
|
|
|
} else {
|
|
|
|
// Top
|
|
val = pixel_to_index(*image_res, (int2)(pixel.x, pixel.y+1));
|
|
if (val >= 0)
|
|
neighbors += second_node_buffer[val];
|
|
|
|
// Top Right
|
|
val = pixel_to_index(*image_res, (int2)(pixel.x+1, pixel.y+1));
|
|
if (val >= 0)
|
|
neighbors += second_node_buffer[val];
|
|
|
|
// Right
|
|
val = pixel_to_index(*image_res, (int2)(pixel.x+1, pixel.y));
|
|
if (val >= 0)
|
|
neighbors += second_node_buffer[val];
|
|
|
|
// Bottom Right
|
|
val = pixel_to_index(*image_res, (int2)(pixel.x+1, pixel.y-1));
|
|
if (val >= 0)
|
|
neighbors += second_node_buffer[val];
|
|
|
|
// Bottom
|
|
val = pixel_to_index(*image_res, (int2)(pixel.x, pixel.y-1));
|
|
if (val >= 0)
|
|
neighbors += second_node_buffer[val];
|
|
|
|
// Bottom Left
|
|
val = pixel_to_index(*image_res, (int2)(pixel.x-1, pixel.y-1));
|
|
if (val >= 0)
|
|
neighbors += second_node_buffer[val];
|
|
|
|
// Left
|
|
val = pixel_to_index(*image_res, (int2)(pixel.x-1, pixel.y));
|
|
if (val >= 0)
|
|
neighbors += second_node_buffer[val];
|
|
|
|
// Top Left
|
|
val = pixel_to_index(*image_res, (int2)(pixel.x-1, pixel.y+1));
|
|
if (val >= 0)
|
|
neighbors += second_node_buffer[val];
|
|
|
|
int base = pixel_to_index(*image_res, pixel);
|
|
if (neighbors == 3 || (neighbors == 2 && second_node_buffer[base])){
|
|
write_imagef(image, pixel, alive);
|
|
first_node_buffer[base] = 1;
|
|
} else {
|
|
write_imagef(image, pixel, dead);
|
|
first_node_buffer[base] = 0;
|
|
}
|
|
}
|
|
}
|