mitchellhansen/conways-game-of-life-gpu
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Alright, I think thats the best performance I'm gonna get by tweaking the loop. Gonna move the rendering shtuff over to the kernel code

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MitchellHansen
2016-01-01 21:21:39 -08:00
parent 5929079075
commit 515c0767a9
1 changed files with 30 additions and 15 deletions
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45
Conway_OpenCL/HelloWorld.cpp
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@@ -147,7 +147,7 @@ int main(int argc, char* argv[])
// Setup the rng // Setup the rng
std::mt19937 rng(time(NULL)); std::mt19937 rng(time(NULL));
std::uniform_int_distribution<int> rgen(0, 20); // 25% chance std::uniform_int_distribution<int> rgen(0, 12); // 25% chance
// Init the grid // Init the grid
char* grid = new char[GRID_WIDTH * GRID_HEIGHT* 2]; char* grid = new char[GRID_WIDTH * GRID_HEIGHT* 2];
@@ -190,6 +190,17 @@ int main(int argc, char* argv[])
status = clSetKernelArg(kernel, 3, sizeof(cl_mem), (void *)&gridHeightBuffer); status = clSetKernelArg(kernel, 3, sizeof(cl_mem), (void *)&gridHeightBuffer);
sf::Uint8* pixel_array = new sf::Uint8[WINDOW_X * WINDOW_Y * 4]; sf::Uint8* pixel_array = new sf::Uint8[WINDOW_X * WINDOW_Y * 4];
for (int i = 0; i < GRID_WIDTH * GRID_HEIGHT * 2; i += 2) {
int p = i / 2;
pixel_array[p * 4] = 49; // R?
pixel_array[p * 4 + 1] = 68; // G?
pixel_array[p * 4 + 2] = 72; // B?
pixel_array[p * 4 + 3] = 255; // A?
}
sf::Texture texture; sf::Texture texture;
texture.create(WINDOW_X, WINDOW_Y); texture.create(WINDOW_X, WINDOW_Y);
sf::Sprite sprite(texture); sf::Sprite sprite(texture);
@@ -233,21 +244,25 @@ int main(int argc, char* argv[])
for (int i = 0; i < GRID_WIDTH * GRID_HEIGHT * 2; i += 2) { for (int i = 0; i < GRID_WIDTH * GRID_HEIGHT * 2; i += 2) {
int p = i / 2;
if (grid[i + 1] == 1) {
pixel_array[p * 4] = 255; // R?
pixel_array[p * 4 + 1] = 255; // G?
pixel_array[p * 4 + 2] = 255; // B?
pixel_array[p * 4 + 3] = 255; // A?
}
else if (grid[i] == 1){
pixel_array[p * 4] = 49; // R?
pixel_array[p * 4 + 1] = 68; // G?
pixel_array[p * 4 + 2] = 72; // B?
pixel_array[p * 4 + 3] = 255; // A?
}
grid[i] = grid[i + 1]; grid[i] = grid[i + 1];
if (grid[i] == 1) {
pixel_array[(i/ 2) * 4] = 255; // R?
pixel_array[(i / 2) * 4 + 1] = 255; // G?
pixel_array[(i / 2) * 4 + 2] = 255; // B?
pixel_array[(i / 2) * 4 + 3] = 255; // A?
}
else {
pixel_array[(i / 2) * 4] = 49; // R?
pixel_array[(i / 2) * 4 + 1] = 68; // G?
pixel_array[(i / 2) * 4 + 2] = 72; // B?
pixel_array[(i / 2) * 4 + 3] = 255; // A?
}
} }
texture.update(pixel_array); texture.update(pixel_array);