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
This commit is contained in:
@@ -1,4 +1,5 @@
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#include <CL/cl.h>
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#include <CL/opencl.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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@@ -75,102 +76,10 @@ int main(int argc, char* argv[])
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int GRID_HEIGHT = WINDOW_Y;
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int WORKER_SIZE = 2000;
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// ============================== OpenCL Setup ==================================================================
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// Get the platforms
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cl_uint numPlatforms;
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cl_platform_id platform = NULL;
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cl_int status = clGetPlatformIDs(0, NULL, &numPlatforms); // Retrieve the number of platforms
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if (status != CL_SUCCESS) {
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std::cout << "Error: Getting platforms!" << std::endl;
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return FAILURE;
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}
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// Choose the first available platform
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if(numPlatforms > 0) {
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cl_platform_id* platforms = new cl_platform_id[numPlatforms];
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status = clGetPlatformIDs(numPlatforms, platforms, NULL); // Now populate the array with the platforms
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platform = platforms[0];
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delete platforms;
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}
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cl_uint numDevices = 0;
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cl_device_id *devices;
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status = clGetDeviceIDs(platform, CL_DEVICE_TYPE_GPU, 0, NULL, &numDevices);
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if (numDevices == 0) { //no GPU available.
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std::cout << "No GPU device available." << std::endl;
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std::cout << "Choose CPU as default device." << std::endl;
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status = clGetDeviceIDs(platform, CL_DEVICE_TYPE_CPU, 0, NULL, &numDevices);
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devices = new cl_device_id[numDevices];
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status = clGetDeviceIDs(platform, CL_DEVICE_TYPE_CPU, numDevices, devices, NULL);
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}
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else {
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devices = new cl_device_id[numDevices];
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status = clGetDeviceIDs(platform, CL_DEVICE_TYPE_GPU, numDevices, devices, NULL);
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}
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cl_context context = clCreateContext(NULL,1, devices,NULL,NULL,NULL);
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cl_command_queue commandQueue = clCreateCommandQueue(context, devices[0], 0, NULL);
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// ============================== Kernel Compilation, Setup ====================================================
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// Read the kernel from the file to a string
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const char *compute_kernel_filename = "conway_compute.cl";
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const char *align_kernel_filename = "conway_align.cl";
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std::string compute_kernel_string;
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std::string align_kernel_string;
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convertToString(compute_kernel_filename, compute_kernel_string);
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convertToString(compute_kernel_filename, align_kernel_string);
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// Create a program with the source
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const char *compute_source = compute_kernel_string.c_str();
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const char *align_source = align_kernel_string.c_str();
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size_t compute_source_size[] = {strlen(compute_source)};
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size_t align_source_size[] = { strlen(align_source) };
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cl_program compute_program = clCreateProgramWithSource(context, 1, &compute_source, compute_source_size, NULL);
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cl_program align_program = clCreateProgramWithSource(context, 1, &align_source, align_source_size, NULL);
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// Build the compute program
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status = clBuildProgram(compute_program, 1, devices, NULL, NULL, NULL);
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if (status == CL_BUILD_PROGRAM_FAILURE) {
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size_t log_size;
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clGetProgramBuildInfo(compute_program, devices[0], CL_PROGRAM_BUILD_LOG, 0, NULL, &log_size);
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char *log = new char[log_size];
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clGetProgramBuildInfo(compute_program, devices[0], CL_PROGRAM_BUILD_LOG, log_size, log, NULL);
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std::cout << log << std::endl;
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}
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// Build the align program
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status = clBuildProgram(align_program, 1, devices, NULL, NULL, NULL);
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if (status == CL_BUILD_PROGRAM_FAILURE) {
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size_t log_size;
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clGetProgramBuildInfo(align_program, devices[0], CL_PROGRAM_BUILD_LOG, 0, NULL, &log_size);
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char *log = new char[log_size];
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clGetProgramBuildInfo(align_program, devices[0], CL_PROGRAM_BUILD_LOG, log_size, log, NULL);
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std::cout << log << std::endl;
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}
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// Now create the kernels
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cl_kernel front_kernel = clCreateKernel(compute_program, "conway_compute", NULL);
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cl_kernel back_kernel = clCreateKernel(align_program, "conway_align", NULL);
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// ======================================= Setup OpenGL =======================================================
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glfwInit();
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glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
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glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
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@@ -180,7 +89,7 @@ int main(int argc, char* argv[])
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glfwMakeContextCurrent(gl_window);
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glfwSetKeyCallback(gl_window, key_callback);
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glewExperimental = GL_TRUE;
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glewInit();
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@@ -229,6 +138,104 @@ int main(int argc, char* argv[])
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glBindVertexArray(0); // Unbind VAO
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// ============================== OpenCL Setup ==================================================================
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// Get the platforms
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cl_uint numPlatforms;
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cl_platform_id platform = NULL;
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cl_int status = clGetPlatformIDs(0, NULL, &numPlatforms); // Retrieve the number of platforms
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if (status != CL_SUCCESS) {
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std::cout << "Error: Getting platforms!" << std::endl;
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return FAILURE;
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}
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// Choose the first available platform
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if(numPlatforms > 0) {
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cl_platform_id* platforms = new cl_platform_id[numPlatforms];
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status = clGetPlatformIDs(numPlatforms, platforms, NULL); // Now populate the array with the platforms
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platform = platforms[0];
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delete platforms;
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}
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cl_uint numDevices = 0;
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cl_device_id *devices;
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status = clGetDeviceIDs(platform, CL_DEVICE_TYPE_GPU, 0, NULL, &numDevices);
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if (numDevices == 0) { //no GPU available.
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std::cout << "No GPU device available." << std::endl;
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std::cout << "Choose CPU as default device." << std::endl;
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status = clGetDeviceIDs(platform, CL_DEVICE_TYPE_CPU, 0, NULL, &numDevices);
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devices = new cl_device_id[numDevices];
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status = clGetDeviceIDs(platform, CL_DEVICE_TYPE_CPU, numDevices, devices, NULL);
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}
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else {
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devices = new cl_device_id[numDevices];
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status = clGetDeviceIDs(platform, CL_DEVICE_TYPE_GPU, numDevices, devices, NULL);
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}
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HGLRC hGLRC = wglGetCurrentContext();
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HDC hDC = wglGetCurrentDC();
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cl_context_properties cps[] ={CL_CONTEXT_PLATFORM, (cl_context_properties)platform, CL_GL_CONTEXT_KHR, (cl_context_properties)hGLRC, CL_WGL_HDC_KHR, (cl_context_properties)hDC, 0 };
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cl_context context = clCreateContext(cps, 1, devices,NULL,NULL,NULL);
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cl_command_queue commandQueue = clCreateCommandQueue(context, devices[0], 0, NULL);
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// ============================== Kernel Compilation, Setup ====================================================
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// Read the kernel from the file to a string
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const char *compute_kernel_filename = "Z:\\VS_Projects\\Conway_OpenCL\\Conway_OpenCL\\conway_compute.cl";
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const char *align_kernel_filename = "Z:\\VS_Projects\\Conway_OpenCL\\Conway_OpenCL\\conway_align.cl";
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std::string compute_kernel_string;
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std::string align_kernel_string;
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convertToString(compute_kernel_filename, compute_kernel_string);
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convertToString(align_kernel_filename, align_kernel_string);
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// Create a program with the source
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const char *compute_source = compute_kernel_string.c_str();
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const char *align_source = align_kernel_string.c_str();
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size_t compute_source_size[] = {strlen(compute_source)};
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size_t align_source_size[] = { strlen(align_source) };
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cl_program compute_program = clCreateProgramWithSource(context, 1, &compute_source, compute_source_size, NULL);
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cl_program align_program = clCreateProgramWithSource(context, 1, &align_source, align_source_size, NULL);
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// Build the compute program
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status = clBuildProgram(compute_program, 1, devices, NULL, NULL, NULL);
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if (status == CL_BUILD_PROGRAM_FAILURE) {
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size_t log_size;
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clGetProgramBuildInfo(compute_program, devices[0], CL_PROGRAM_BUILD_LOG, 0, NULL, &log_size);
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char *log = new char[log_size];
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clGetProgramBuildInfo(compute_program, devices[0], CL_PROGRAM_BUILD_LOG, log_size, log, NULL);
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std::cout << log << std::endl;
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}
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// Build the align program
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status = clBuildProgram(align_program, 1, devices, NULL, NULL, NULL);
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if (status == CL_BUILD_PROGRAM_FAILURE) {
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size_t log_size;
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clGetProgramBuildInfo(align_program, devices[0], CL_PROGRAM_BUILD_LOG, 0, NULL, &log_size);
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char *log = new char[log_size];
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clGetProgramBuildInfo(align_program, devices[0], CL_PROGRAM_BUILD_LOG, log_size, log, NULL);
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std::cout << log << std::endl;
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}
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// Now create the kernels
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cl_kernel compute_kernel = clCreateKernel(compute_program, "conway_compute", NULL);
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cl_kernel back_kernel = clCreateKernel(align_program, "conway_align", NULL);
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// ======================================= Setup grid =========================================================
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@@ -248,22 +255,16 @@ int main(int argc, char* argv[])
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}
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}
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unsigned char* back_grid = new unsigned char[GRID_WIDTH * GRID_HEIGHT];
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for (int i = 0; i < GRID_WIDTH * GRID_HEIGHT; i++) {
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back_grid[i] = front_grid[i];
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}
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// ====================================== Setup Rendering ==========================================================
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unsigned char* pixel_array = new sf::Uint8[WINDOW_X * WINDOW_Y * 4];
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for (int i = 0; i < GRID_WIDTH * GRID_HEIGHT * 4; i += 4) {
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pixel_array[i] = 29; // R?
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pixel_array[i] = i % 255; // R?
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pixel_array[i + 1] = 70; // G?
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pixel_array[i + 2] = 100; // B?
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pixel_array[i + 3] = 200; // A?
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pixel_array[i + 3] = 100; // A?
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}
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GLuint texture;
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@@ -292,45 +293,36 @@ int main(int argc, char* argv[])
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glGenerateMipmap(GL_TEXTURE_2D);
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delete pixel_array;
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//delete pixel_array;
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// ========================================= Setup the buffers ==================================================
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int err = 0;
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cl_mem frontBuffer = clCreateBuffer(context, CL_MEM_READ_WRITE | CL_MEM_COPY_HOST_PTR, GRID_WIDTH * GRID_HEIGHT * sizeof(char), (void*)front_grid, &err);
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cl_mem backBuffer = clCreateBuffer(context, CL_MEM_READ_WRITE | CL_MEM_COPY_HOST_PTR, GRID_WIDTH * GRID_HEIGHT * sizeof(char), (void*)back_grid, &err);
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//cl_mem pixelBuffer = clCreateBuffer(context, CL_MEM_READ_WRITE | CL_MEM_COPY_HOST_PTR, GRID_WIDTH * GRID_HEIGHT * sizeof(char), (void*)pixel_array, &err);
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cl_mem frontBuffer = clCreateFromGLTexture(context , CL_MEM_READ_WRITE, GL_TEXTURE_2D, 0, texture, &err);
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cl_mem workerCountBuffer = clCreateBuffer(context, CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR, sizeof(int), &WORKER_SIZE, &err);
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cl_mem gridWidthBuffer = clCreateBuffer(context, CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR, sizeof(int), &GRID_WIDTH, &err);
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cl_mem gridHeightBuffer = clCreateBuffer(context, CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR, sizeof(int), &GRID_HEIGHT, &err);
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// Kernel args for front kernel
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status = clSetKernelArg(front_kernel, 0, sizeof(cl_mem), (void *)&frontBuffer);
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status = clSetKernelArg(front_kernel, 1, sizeof(cl_mem), (void *)&backBuffer);
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//status = clSetKernelArg(front_kernel, 2, sizeof(cl_mem), (void *)&pixelBuffer);
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// Kernel args
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status = clSetKernelArg(compute_kernel, 0, sizeof(cl_mem), (void *)&frontBuffer);
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status = clSetKernelArg(compute_kernel, 1, sizeof(cl_mem), (void *)&workerCountBuffer);
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status = clSetKernelArg(compute_kernel, 2, sizeof(cl_mem), (void *)&gridWidthBuffer);
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status = clSetKernelArg(compute_kernel, 3, sizeof(cl_mem), (void *)&gridHeightBuffer);
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status = clSetKernelArg(front_kernel, 3, sizeof(cl_mem), (void *)&workerCountBuffer);
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status = clSetKernelArg(front_kernel, 4, sizeof(cl_mem), (void *)&gridWidthBuffer);
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status = clSetKernelArg(front_kernel, 5, sizeof(cl_mem), (void *)&gridHeightBuffer);
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// Flipped kernel args for the back kernel
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status = clSetKernelArg(back_kernel, 0, sizeof(cl_mem), (void *)&backBuffer); // Flipped
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status = clSetKernelArg(back_kernel, 1, sizeof(cl_mem), (void *)&frontBuffer); // Flipped
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//status = clSetKernelArg(back_kernel, 2, sizeof(cl_mem), (void *)&pixelBuffer);
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status = clSetKernelArg(back_kernel, 3, sizeof(cl_mem), (void *)&workerCountBuffer);
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status = clSetKernelArg(back_kernel, 4, sizeof(cl_mem), (void *)&gridWidthBuffer);
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status = clSetKernelArg(back_kernel, 5, sizeof(cl_mem), (void *)&gridHeightBuffer);
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// ===================================== Loop ==================================================================
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while (!glfwWindowShouldClose(gl_window)) {
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// Clear the colorbuffer
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glClearColor(0.2f, 0.3f, 0.3f, 1.0f);
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glClear(GL_COLOR_BUFFER_BIT);
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//glfwPollEvents();
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//glClear(GL_COLOR_BUFFER_BIT);
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@@ -340,11 +332,15 @@ int main(int argc, char* argv[])
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//status = clEnqueueWriteBuffer(commandQueue, frontBuffer, CL_TRUE, 0, GRID_WIDTH * GRID_HEIGHT * 2 * sizeof(char), (void*)grid, NULL, 0, NULL);
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// Work size, for each y line
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size_t global_work_size[1] = { WORKER_SIZE };
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size_t global_work_size[1] = { 10 };
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status = clEnqueueAcquireGLObjects(commandQueue, 1, &frontBuffer, 0, 0, 0);
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status = clEnqueueNDRangeKernel(commandQueue, back_kernel, 1, NULL, global_work_size, NULL, 0, NULL, NULL);
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//status = clEnqueueReadBuffer(commandQueue, pixelBuffer, CL_TRUE, 0, GRID_WIDTH * GRID_HEIGHT * 4 * sizeof(unsigned char), (void*)pixel_array, 0, NULL, NULL);
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status = clEnqueueNDRangeKernel(commandQueue, compute_kernel, 1, NULL, global_work_size, NULL, 0, NULL, NULL);
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//status = clEnqueueReadBuffer(commandQueue, frontBuffer, CL_TRUE, 0, GRID_WIDTH * GRID_HEIGHT * 4 * sizeof(unsigned char), (void*)pixel_array, 0, NULL, NULL);
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status = clEnqueueReleaseGLObjects(commandQueue, 1, &frontBuffer, 0, NULL, NULL);
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// ======================================= Rendering Shtuff =================================================
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@@ -352,9 +348,6 @@ int main(int argc, char* argv[])
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glfwPollEvents();
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// Render
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// Clear the colorbuffer
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glClearColor(0.2f, 0.3f, 0.3f, 1.0f);
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glClear(GL_COLOR_BUFFER_BIT);
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glActiveTexture(GL_TEXTURE0);
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glBindTexture(GL_TEXTURE_2D, texture);
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@@ -377,14 +370,12 @@ int main(int argc, char* argv[])
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// Release the buffers
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status = clReleaseMemObject(frontBuffer);
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status = clReleaseMemObject(backBuffer);
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//status = clReleaseMemObject(pixelBuffer);
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status = clReleaseMemObject(workerCountBuffer);
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status = clReleaseMemObject(gridWidthBuffer);
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status = clReleaseMemObject(gridHeightBuffer);
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// And the program stuff
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status = clReleaseKernel(front_kernel);
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status = clReleaseKernel(compute_kernel);
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status = clReleaseProgram(compute_program);
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status = clReleaseProgram(align_program);
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status = clReleaseCommandQueue(commandQueue);
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@@ -1,61 +1,21 @@
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__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)
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__kernel void conway_compute(__global unsigned char* front_grid, __global int* num_workers, __global int* grid_width, __global int* grid_height)
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{
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// Caclulate the start and end range that this worker will be calculating
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int num = *grid_width * *grid_height * 4;
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int data_length = *grid_width * *grid_height;
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int start_range = (data_length / *num_workers) * get_global_id(0);
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int end_range = (data_length / *num_workers) * (get_global_id(0) + 1);
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for (int i = 0; i < num ; i += 4){
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// x, y + 1
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int neighbors = 0;
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for (int i = start_range; i < end_range; i++){
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// add all 8 blocks to neighbors
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neighbors = 0;
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// Top
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neighbors += front_grid[i - *grid_width];
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// Top right
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neighbors += front_grid[i - *grid_width + 1];
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// Right
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neighbors += front_grid[i + 1];
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// Bottom Right
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neighbors += front_grid[i + *grid_width + 1];
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// Bottom
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neighbors += front_grid[i + *grid_width];
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// Bottom Left
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neighbors += front_grid[i + *grid_width - 1];
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// Left
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neighbors += front_grid[i - 1];
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// Top left
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neighbors += front_grid[i - *grid_width - 1];
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if (neighbors == 3 || (neighbors == 2 && front_grid[i])) {
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rear_grid[i] = 1;
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pixel_out[i * 4] = 255; // R
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pixel_out[i * 4 + 1] = 255; // G
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pixel_out[i * 4 + 2] = 255; // B
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pixel_out[i * 4 + 3] = 255; // A
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}
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front_grid[i] = 0;
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front_grid[i + 1] = 0;
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front_grid[i + 2] = 0;
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front_grid[i + 3] = 0;
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else {
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rear_grid[i] = 0;
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pixel_out[i * 4] = 49; // R
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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;
|
||||
}
|
||||
@@ -10,5 +10,6 @@ uniform sampler2D ourTexture1;
|
||||
void main()
|
||||
{
|
||||
// Linearly interpolate between both textures (second texture is only slightly combined)
|
||||
//color = vec4(1.0f, 0.5f, 0.2f, 1.0f);
|
||||
color = texture(ourTexture1, TexCoord);
|
||||
}
|
||||
Reference in New Issue
Block a user