mitchellhansen/conways-game-of-life-gpu
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Hah, well something is happening!!!!

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MitchellHansen
2015-12-31 23:19:03 -08:00
parent 6d439eef86
commit 5fbc65d9df
1 changed files with 16 additions and 13 deletions
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29
Conway_OpenCL/HelloWorld.cpp
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@@ -179,17 +179,9 @@ int main(int argc, char* argv[])
int err = 0;
cl_mem workerCountBuffer = clCreateBuffer(context, CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR, sizeof(int), &WORKER_SIZE, &err);
cl_mem gridWidthBuffer = clCreateBuffer(context, CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR, sizeof(int), &GRID_WIDTH, &err);
cl_mem gridHeightBuffer = clCreateBuffer(context, CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR, sizeof(int), &GRID_HEIGHT, &err);
status = clSetKernelArg(kernel, 1, sizeof(cl_mem), (void *)&workerCountBuffer);
status = clSetKernelArg(kernel, 2, sizeof(cl_mem), (void *)&gridWidthBuffer);
status = clSetKernelArg(kernel, 3, sizeof(cl_mem), (void *)&gridHeightBuffer);
// ===================================== Loop ==================================================================
while (window.isOpen()) {
@@ -218,20 +210,33 @@ int main(int argc, char* argv[])
window.clear(sf::Color(49, 68, 72));
cl_mem inputBuffer = clCreateBuffer(context, CL_MEM_READ_WRITE | CL_MEM_COPY_HOST_PTR, GRID_WIDTH * GRID_HEIGHT * 2 * sizeof(char), (void*)grid, &err);
cl_mem workerCountBuffer = clCreateBuffer(context, CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR, sizeof(int), &WORKER_SIZE, &err);
cl_mem gridWidthBuffer = clCreateBuffer(context, CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR, sizeof(int), &GRID_WIDTH, &err);
cl_mem gridHeightBuffer = clCreateBuffer(context, CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR, sizeof(int), &GRID_HEIGHT, &err);
status = clSetKernelArg(kernel, 0, sizeof(cl_mem), (void *)&inputBuffer);
status = clSetKernelArg(kernel, 1, sizeof(cl_mem), (void *)&workerCountBuffer);
status = clSetKernelArg(kernel, 2, sizeof(cl_mem), (void *)&gridWidthBuffer);
status = clSetKernelArg(kernel, 3, sizeof(cl_mem), (void *)&gridHeightBuffer);
//status = clEnqueueWriteBuffer(commandQueue, inputBuffer, CL_TRUE, 0, GRID_WIDTH * GRID_HEIGHT * 2 * sizeof(char), (void*)grid, NULL, 0, NULL);
// One work item per group, don't really know if this impacts performance
size_t global_work_size[1] = { 1 };
size_t global_work_size[1] = { 100 };
// Run the kernel
status = clEnqueueNDRangeKernel(commandQueue, kernel, 1, NULL, global_work_size, NULL, 0, NULL, NULL);
// Get output, put back into grid
//cl_mem outputBuffer = clCreateBuffer(context, CL_MEM_WRITE_ONLY, GRID_WIDTH * GRID_HEIGHT * 2 * sizeof(char), grid, NULL);
status = clEnqueueReadBuffer(commandQueue, inputBuffer, CL_TRUE, 0, GRID_WIDTH * GRID_HEIGHT * 2 * sizeof(char), grid, 0, NULL, NULL);
status = clEnqueueReadBuffer(commandQueue, inputBuffer, CL_TRUE, 0, GRID_WIDTH * GRID_HEIGHT * 2 * sizeof(char), (void*)grid, 0, NULL, NULL);
// Temporary
status = clReleaseMemObject(inputBuffer);
status = clReleaseMemObject(workerCountBuffer);
status = clReleaseMemObject(gridWidthBuffer);
status = clReleaseMemObject(gridHeightBuffer);
// Swap status's
for (int i = 0; i < GRID_WIDTH * GRID_HEIGHT * 2; i += 2) {
@@ -251,9 +256,7 @@ int main(int argc, char* argv[])
}
status = clReleaseMemObject(workerCountBuffer);
status = clReleaseMemObject(gridWidthBuffer);
status = clReleaseMemObject(gridHeightBuffer);
/*Step 12: Clean the resources.*/
status = clReleaseKernel(kernel); //Release kernel.