mitchellhansen/conways-game-of-life-gpu
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So, it is sharing the textures correctly, it is drawing the OpenGL texture fine. But OpenCL will not touch the thing. CodeXL wont debug it for some reason, and I can't read out from enqueueReadBuffer. I really don't know whats going on here

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MitchellHansen
2016-01-10 03:33:10 -08:00
parent d999828bee
commit d93a57cbdf
3 changed files with 140 additions and 188 deletions
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70
Conway_OpenCL/conway_compute.cl
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@@ -1,61 +1,21 @@
__kernel void conway_compute(__global unsigned char* front_grid, __global unsigned char* rear_grid, __global unsigned char* pixel_out, __global int* num_workers, __global int* grid_width, __global int* grid_height)
__kernel void conway_compute(__global unsigned char* front_grid, __global int* num_workers, __global int* grid_width, __global int* grid_height)
{
// Caclulate the start and end range that this worker will be calculating
int num = *grid_width * *grid_height * 4;
int data_length = *grid_width * *grid_height;
int start_range = (data_length / *num_workers) * get_global_id(0);
int end_range = (data_length / *num_workers) * (get_global_id(0) + 1);
for (int i = 0; i < num ; i += 4){
// x, y + 1
int neighbors = 0;
for (int i = start_range; i < end_range; i++){
// add all 8 blocks to neighbors
neighbors = 0;
// Top
neighbors += front_grid[i - *grid_width];
// Top right
neighbors += front_grid[i - *grid_width + 1];
// Right
neighbors += front_grid[i + 1];
// Bottom Right
neighbors += front_grid[i + *grid_width + 1];
// Bottom
neighbors += front_grid[i + *grid_width];
// Bottom Left
neighbors += front_grid[i + *grid_width - 1];
// Left
neighbors += front_grid[i - 1];
// Top left
neighbors += front_grid[i - *grid_width - 1];
if (neighbors == 3 || (neighbors == 2 && front_grid[i])) {
rear_grid[i] = 1;
pixel_out[i * 4] = 255; // R
pixel_out[i * 4 + 1] = 255; // G
pixel_out[i * 4 + 2] = 255; // B
pixel_out[i * 4 + 3] = 255; // A
}
front_grid[i] = 0;
front_grid[i + 1] = 0;
front_grid[i + 2] = 0;
front_grid[i + 3] = 0;
else {
rear_grid[i] = 0;
pixel_out[i * 4] = 49; // R
pixel_out[i * 4 + 1] = 68; // G
pixel_out[i * 4 + 2] = 72; // B
pixel_out[i * 4 + 3] = 255; // A
}
}
front_grid[90000] = 0;
front_grid[90001] = 0;
front_grid[90002] = 0;
front_grid[90003] = 0;
front_grid[90004] = 0;
front_grid[90005] = 0;
front_grid[90006] = 0;
}