mitchellhansen/conways-game-of-life-gpu
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Forgot to turn off the FPS limiting, wow this thing is speedy

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MitchellHansen
2017-04-04 06:12:41 -07:00
parent 79abf8f924
commit 823f2e78aa
2 changed files with 19 additions and 15 deletions
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24
kernels/conways.cl
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@@ -12,7 +12,7 @@ int pixel_to_index(int2 dimensions, int2 pixel) {
__kernel void conways ( __kernel void conways (
global int2* image_res, global int2* image_res,
__write_only image2d_t image, __read_write image2d_t image,
global char* first_node_buffer, global char* first_node_buffer,
global char* second_node_buffer, global char* second_node_buffer,
global char* buffer_flip global char* buffer_flip
@@ -29,8 +29,9 @@ __kernel void conways (
//if (pixel.x > 1800) //if (pixel.x > 1800)
// printf("%i, %i", pixel.x, pixel.y); // printf("%i, %i", pixel.x, pixel.y);
float4 dead = (float4)(.49, .68, .81, 1); float4 dead = (float4)(.51, .49, .39, .9);
float4 alive = (float4)(.49, .68, .71, .3); float4 alive = (float4)(.21, .43, .46, .6);
float4 flavor = (float4)(.21, .76, .83, .8);
// add all 8 blocks to neghbors // add all 8 blocks to neghbors
int neighbors = 0; int neighbors = 0;
@@ -80,11 +81,12 @@ __kernel void conways (
int base = pixel_to_index(*image_res, pixel); int base = pixel_to_index(*image_res, pixel);
if (neighbors == 3 || (neighbors == 2 && first_node_buffer[base])){ if (neighbors == 3 || (neighbors == 2 && first_node_buffer[base])){
write_imagef(image, pixel, alive); write_imagef(image, pixel, alive);
second_node_buffer[base] = 1; second_node_buffer[base] = 1;
} else { } else {
write_imagef(image, pixel, dead);
second_node_buffer[base] = 0; write_imagef(image, pixel, mix(read_imagef(image, pixel), dead, 0.01f));
second_node_buffer[base] = 0;
} }
} else { } else {
@@ -131,11 +133,11 @@ __kernel void conways (
int base = pixel_to_index(*image_res, pixel); int base = pixel_to_index(*image_res, pixel);
if (neighbors == 3 || (neighbors == 2 && second_node_buffer[base])){ if (neighbors == 3 || (neighbors == 2 && second_node_buffer[base])){
write_imagef(image, pixel, alive); write_imagef(image, pixel, alive);
first_node_buffer[base] = 1; first_node_buffer[base] = 1;
} else { } else {
write_imagef(image, pixel, dead); write_imagef(image, pixel, mix(read_imagef(image, pixel), flavor, 0.001f));
first_node_buffer[base] = 0; first_node_buffer[base] = 0;
} }
} }
} }

10
src/main.cpp
View File

@@ -27,7 +27,10 @@ const int WINDOW_Y = 1080;
void generate_nodes(sf::Uint8* nodes) { void generate_nodes(sf::Uint8* nodes) {
for (int i = 0; i < WINDOW_X * WINDOW_Y; i += 1) { for (int i = 0; i < WINDOW_X * WINDOW_Y; i += 1) {
if (rand() % 10 > 8)
sf::Vector2i pos(i % WINDOW_X, i / WINDOW_X);
if ((pos.x % 5 == 0) || (pos.y % 8 == 0))
nodes[i] = 1; nodes[i] = 1;
else else
nodes[i] = 0; nodes[i] = 0;
@@ -38,7 +41,7 @@ void generate_nodes(sf::Uint8* nodes) {
int main() { int main() {
sf::RenderWindow window(sf::VideoMode(WINDOW_X, WINDOW_Y), "conways-game-of-life-opencl"); sf::RenderWindow window(sf::VideoMode(WINDOW_X, WINDOW_Y), "conways-game-of-life-opencl");
window.setFramerateLimit(60); window.setFramerateLimit(300);
float physic_step = 0.166f; float physic_step = 0.166f;
float physic_time = 0.0f; float physic_time = 0.0f;
@@ -54,7 +57,7 @@ int main() {
} }
sf::Vector2i image_resolution(WINDOW_X, WINDOW_Y); sf::Vector2i image_resolution(WINDOW_X, WINDOW_Y);
cl.create_image_buffer("viewport_image", image_resolution, sf::Vector2f(0, 0), CL_MEM_WRITE_ONLY); cl.create_image_buffer("viewport_image", image_resolution, sf::Vector2f(0, 0), CL_MEM_READ_WRITE);
cl.create_buffer("image_res", sizeof(sf::Vector2i), &image_resolution); cl.create_buffer("image_res", sizeof(sf::Vector2i), &image_resolution);
sf::Uint8* nodes = new sf::Uint8[WINDOW_X * WINDOW_Y]; sf::Uint8* nodes = new sf::Uint8[WINDOW_X * WINDOW_Y];
@@ -116,7 +119,6 @@ int main() {
window.clear(sf::Color::White); window.clear(sf::Color::White);
cl.run_kernel("conways", image_resolution); cl.run_kernel("conways", image_resolution);
//cl.run_kernel("conways", sf::Vector2i(5, 5));
cl.draw(&window); cl.draw(&window);
if (buffer_flip == 1) if (buffer_flip == 1)