-#include "vulkan/vk.h"
-extern GLFWwindow win;
+#define GLFW_INCLUDE_VULKAN
+#include <GLFW/glfw3.h>
+
+#include <alloca.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <string>
+#include <vector>
+
+#include "gfxapi.h"
+
+/* global variables */
+extern GLFWwindow *win;
+extern int win_w;
+extern int win_h;
+
+/* static variables */
+static std::vector<std::string> enabled_extension_names;
+static VkInstance inst;
+static VkDevice device;
+static VkPhysicalDevice pdev;
+static VkSurfaceKHR surface;
+static uint32_t device_mem_idx;
+static uint32_t num_queues;
+static uint32_t qfamily_idx;
+
+static const char *print_vulkan_error(VkResult error);
+static const char *dev_type_str(VkPhysicalDeviceType type);
+static const char *heap_flags_str(VkMemoryHeapFlags flags);
+static const char *memtype_flags_str(VkMemoryPropertyFlags flags);
+static const char *queue_flags_str(VkQueueFlags flags);
+
+/* static fumctions */
+static bool create_instance();
+static bool create_device();
bool init_vulkan()
{
+ if(!glfwInit()) {
+ fprintf(stderr, "Failed to initialize GLFW.\n");
+ return false;
+ }
+
+ if(!glfwVulkanSupported()) {
+ fprintf(stderr, "No Vulkan support on the device.\n");
+ return false;
+ }
+
+ if(!create_instance()) {
+ fprintf(stderr, "Failed to enable validation.\n");
+ return false;
+ }
+
+ if(!glfwGetPhysicalDevicePresentationSupport(inst, pdev, qfamily_idx)) {
+ fprintf(stderr, "Presentation support not found.\n");
+ return false;
+ }
+
+ glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
+ if(!(win = glfwCreateWindow(win_w, win_h, "vkcow", 0, 0))) {
+ fprintf(stderr, "Failed to create window.\n");
+ return false;
+ }
+
+ if(VkResult err = glfwCreateWindowSurface(inst, win, 0, &surface)) {
+ fprintf(stderr, "Failed to create KHR surface: %s\n", print_vulkan_error(err));
+ return false;
+ }
+
return true;
}
void cleanup_vulkan()
{
+ //TODOs according to the book:
+ // 1- make sure all threads have been terminated (when I add threads)
+ // 2- destroy objects in *reverse* order
+
+ vkDestroySurfaceKHR(inst, surface, 0);
+
+ if(vkDeviceWaitIdle(device) == VK_SUCCESS) {
+ vkDestroyDevice(device, 0);
+ vkDestroyInstance(inst, 0);
+ }
+}
+
+static bool create_instance()
+{
+ /* enable layers */
+ uint32_t layer_count = 0;
+ std::vector<const char *> enabled_layers;
+
+ if(vkEnumerateInstanceLayerProperties(&layer_count, 0) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to query layer properties.\n");
+ return false;
+ }
+
+ if(layer_count > 0) {
+ VkLayerProperties *layers = (VkLayerProperties *)alloca(layer_count * sizeof *layers);
+ vkEnumerateInstanceLayerProperties(&layer_count, layers);
+ for(uint32_t i=0; i<layer_count; i++) {
+ if(strcmp(layers[i].layerName, "VK_LAYER_LUNARG_standard_validation")) {
+ enabled_layers.push_back(layers[i].layerName);
+ }
+ }
+ }
+
+ /* enable extensions */
+ uint32_t extensions_count = 0;
+ std::vector<const char *> enabled_extensions;
+
+ if(vkEnumerateInstanceExtensionProperties(0, &extensions_count, 0) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to enumerate instance extension properties\n");
+ return false;
+ }
+
+ if(extensions_count > 0) {
+ VkExtensionProperties *extensions = (VkExtensionProperties *)alloca(extensions_count * sizeof *extensions);
+ vkEnumerateInstanceExtensionProperties(0, &extensions_count, extensions);
+
+ for(uint32_t i=0; i<extensions_count; i++) {
+ printf("Extension %u: %s %u.\n", i, extensions[i].extensionName, extensions[i].specVersion);
+ //enable all the available extensions
+ enabled_extensions.push_back(extensions[i].extensionName);
+ enabled_extension_names.push_back(std::string(extensions[i].extensionName));
+ }
+ }
+
+ /* create instance */
+ VkInstanceCreateInfo create_info;
+ memset(&create_info, 0, sizeof create_info);
+ create_info.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
+
+ if(!enabled_layers.empty()) {
+ create_info.enabledLayerCount = enabled_layers.size();
+ create_info.ppEnabledLayerNames = enabled_layers.data();
+ }
+
+ if(!enabled_extensions.empty()) {
+ create_info.enabledExtensionCount = enabled_extensions.size();
+ create_info.ppEnabledExtensionNames = enabled_extensions.data();
+ }
+
+ if(vkCreateInstance(&create_info, 0, &inst) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to create instance.\n");
+ return false;
+ }
+
+ if(!create_device())
+ return false;
+
+ return true;
+}
+
+static bool create_device()
+{
+ int qfam_idx = -1;
+ int pdev_idx = -1;
+
+ uint32_t dev_count;
+ if(vkEnumeratePhysicalDevices(inst, &dev_count, 0) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to enumerate physical devices.\n");
+ return false;
+ }
+ printf("%u devices found.\n", (unsigned int)dev_count);
+
+ VkPhysicalDevice *phys_dev = (VkPhysicalDevice *)alloca(dev_count * sizeof *phys_dev);
+ vkEnumeratePhysicalDevices(inst, &dev_count, phys_dev);
+ VkPhysicalDeviceMemoryProperties memprop;
+
+ for(uint32_t i=0; i<dev_count; i++) {
+ VkPhysicalDeviceProperties dev_props;
+ vkGetPhysicalDeviceProperties(phys_dev[i], &dev_props);
+
+ //memory heaps:
+ vkGetPhysicalDeviceMemoryProperties(phys_dev[i], &memprop);
+ printf("\tNumber of heaps: %u\n", memprop.memoryHeapCount);
+ for(uint32_t j=0; j<memprop.memoryHeapCount; j++) {
+ printf("\t\tHeap %u size: %lu\n", j, (unsigned long)memprop.memoryHeaps[j].size);
+ printf("\t\tHeap %u flags: %s\n", j, heap_flags_str(memprop.memoryHeaps[j].flags));
+ }
+ //memory types
+ printf("\tMemory types: %u\n", memprop.memoryTypeCount);
+ for(uint32_t j=0; j<memprop.memoryTypeCount; j++) {
+ printf("\t\tType %u heap index: %u\n", j, memprop.memoryTypes[j].heapIndex);
+ printf("\t\tType %u flags: %s\n", j, memtype_flags_str(memprop.memoryTypes[j].propertyFlags));
+ }
+
+ //supported features
+ VkPhysicalDeviceFeatures features;
+ vkGetPhysicalDeviceFeatures(phys_dev[i], &features);
+
+ //queue families
+ uint32_t qfam_count;
+ vkGetPhysicalDeviceQueueFamilyProperties(phys_dev[i], &qfam_count, 0);
+ printf("\tQueue Families: %u\n", qfam_count);
+ VkQueueFamilyProperties *qfam_props = new VkQueueFamilyProperties[qfam_count];
+ vkGetPhysicalDeviceQueueFamilyProperties(phys_dev[i], &qfam_count, qfam_props);
+ for(uint32_t j=0; j<qfam_count; j++) {
+ printf("\t\tFamily %u flags: %s\n", j, queue_flags_str(qfam_props[j].queueFlags));
+ printf("\t\tFamily %u number of queues: %u\n", j, qfam_props[j].queueCount);
+
+ if((qfam_props[j].queueFlags & VK_QUEUE_GRAPHICS_BIT) && (pdev_idx == -1)) {
+ pdev_idx = i;
+ qfam_idx = j;
+ num_queues = qfam_props[j].queueCount;
+ }
+ }
+ delete [] qfam_props;
+ }
+
+ if(pdev_idx == -1) {
+ fprintf(stderr, "No suitable devices found.\n");
+ return false;
+ }
+
+ pdev = *(phys_dev + pdev_idx);
+ qfamily_idx = qfam_idx;
+
+ /* uint32_t layer_count;
+ if(vkEnumerateDeviceLayerProperties(pdev, &layer_count, 0) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to enumerate device layers.\n");
+ return false;
+ }
+ if(layer_count > 0) {
+ VkLayerProperties *layers = (VkLayerProperties*)alloca(layer_count * sizeof *layers);
+ vkEnumerateDeviceLayerProperties(pdev, &layer_count, layers);
+ printf("%u layers found.\n", layer_count);
+ for(uint32_t i=0; i<layer_count; i++) {
+ printf("Layer %u: %s (%u, %u)\n", i, layers[i].layerName,
+ layers[i].specVersion, layers[i].implementationVersion);
+ printf("\tDesc: %s\n", layers[i].description);
+ }
+ }
+ */
+ VkDeviceCreateInfo dev_info;
+ memset(&dev_info, 0, sizeof dev_info);
+ dev_info.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
+
+ VkDeviceQueueCreateInfo dev_qinfo;
+ memset(&dev_qinfo, 0, sizeof dev_qinfo);
+ dev_qinfo.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
+ dev_qinfo.queueFamilyIndex = qfam_idx;
+ dev_qinfo.queueCount = 1;
+
+ dev_info.queueCreateInfoCount = 1;
+ dev_info.pQueueCreateInfos = &dev_qinfo;
+
+ if(vkCreateDevice(pdev, &dev_info, 0, &device) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to create logical device.\n");
+ return false;
+ }
+
+ vkGetPhysicalDeviceMemoryProperties(pdev, &memprop);
+ for(uint32_t j=0; j<memprop.memoryTypeCount; j++) {
+ if(memprop.memoryTypes[j].propertyFlags & VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT) {
+ device_mem_idx = j;
+ printf("Selected device memory index: %u\n", device_mem_idx);
+ break;
+ }
+ }
+
+ return true;
+}
+
+static const char *print_vulkan_error(VkResult error)
+{
+ std::string errmsg;
+ switch(error) {
+ case VK_SUCCESS:
+ errmsg = std::string("VK_SUCCESS");
+ break;
+ case VK_NOT_READY:
+ errmsg = std::string("VK_NOT_READY");
+ break;
+ case VK_TIMEOUT:
+ errmsg = std::string("VK_TIMEOUT");
+ break;
+ case VK_EVENT_SET:
+ errmsg = std::string("VK_EVENT_SET");
+ break;
+ case VK_EVENT_RESET:
+ errmsg = std::string("VK_EVENT_RESET");
+ break;
+ case VK_INCOMPLETE:
+ errmsg = std::string("VK_EVENT");
+ break;
+ case VK_ERROR_OUT_OF_HOST_MEMORY:
+ errmsg = std::string("VK_ERROR_OUT_OF_HOST_MEMORY");
+ break;
+ case VK_ERROR_OUT_OF_DEVICE_MEMORY:
+ errmsg = std::string("VK_ERROR_OUT_OF_DEVICE_MEMORY");
+ break;
+ case VK_ERROR_INITIALIZATION_FAILED:
+ errmsg = std::string("VK_ERROR_INITIALIZATION_FAILED");
+ break;
+ case VK_ERROR_DEVICE_LOST:
+ errmsg = std::string("VK_ERROR_DEVICE_LOST");
+ break;
+ case VK_ERROR_MEMORY_MAP_FAILED:
+ errmsg = std::string("VK_ERROR_MEMORY_MAP_FAILED");
+ break;
+ case VK_ERROR_LAYER_NOT_PRESENT:
+ errmsg = std::string("VK_ERROR_LAYER_NOT_PRESENT");
+ break;
+ case VK_ERROR_EXTENSION_NOT_PRESENT:
+ errmsg = std::string("VK_ERROR_EXTENSION_NOT_PRESENT");
+ break;
+ case VK_ERROR_FEATURE_NOT_PRESENT:
+ errmsg = std::string("VK_ERROR_FEATURE_NOT_PRESENT");
+ break;
+ case VK_ERROR_INCOMPATIBLE_DRIVER:
+ errmsg = std::string("VK_ERROR_INCOMPATIBLE_DRIVER");
+ break;
+ case VK_ERROR_TOO_MANY_OBJECTS:
+ errmsg = std::string("VK_ERROR_TOO_MANY_OBJECTS");
+ break;
+ case VK_ERROR_FORMAT_NOT_SUPPORTED:
+ errmsg = std::string("VK_ERROR_FORMAT_NOT_SUPPORTED");
+ break;
+ case VK_ERROR_FRAGMENTED_POOL:
+ errmsg = std::string("VK_ERROR_FRAGMENTED_POOL");
+ break;
+ default:
+ errmsg = std::string("UNKNOWN");
+ break;
+ }
+
+ return errmsg.c_str();
+}
+
+static const char *dev_type_str(VkPhysicalDeviceType type)
+{
+ switch(type) {
+ case VK_PHYSICAL_DEVICE_TYPE_OTHER:
+ return "other";
+ case VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU:
+ return "integrated GPU";
+ case VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU:
+ return "discrete GPU";
+ case VK_PHYSICAL_DEVICE_TYPE_VIRTUAL_GPU:
+ return "virtual GPU";
+ case VK_PHYSICAL_DEVICE_TYPE_CPU:
+ return "CPU";
+ default:
+ break;
+ }
+ return "unknown";
+}
+
+static const char *heap_flags_str(VkMemoryHeapFlags flags)
+{
+ static std::string str;
+ str.clear();
+ if(flags & VK_MEMORY_HEAP_DEVICE_LOCAL_BIT) {
+ str += "device-local ";
+ }
+ if(!str.empty())
+ str.pop_back();
+ return str.c_str();
}
-GLFWwindow *create_vulkan_window()
+static const char *memtype_flags_str(VkMemoryPropertyFlags flags)
{
- return 0;
+ static std::string str;
+ str.clear();
+ if(flags & VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT) {
+ str += "device-local ";
+ }
+ if(flags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) {
+ str += "host-visible ";
+ }
+ if(flags & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT) {
+ str += "host-coherent ";
+ }
+ if(flags & VK_MEMORY_PROPERTY_HOST_CACHED_BIT) {
+ str += "host-cached ";
+ }
+ if(flags & VK_MEMORY_PROPERTY_LAZILY_ALLOCATED_BIT) {
+ str += "lazily-allocated ";
+ }
+ if(!str.empty())
+ str.pop_back();
+ return str.c_str();
}
-void clbk_clear_vk()
+static const char *queue_flags_str(VkQueueFlags flags)
{
+ static std::string str;
+ str.clear();
+ if(flags & VK_QUEUE_GRAPHICS_BIT)
+ str += "graphics ";
+ if(flags & VK_QUEUE_COMPUTE_BIT)
+ str += "compute ";
+ if(flags & VK_QUEUE_TRANSFER_BIT)
+ str += "transfer ";
+ if(flags & VK_QUEUE_SPARSE_BINDING_BIT)
+ str += "sparse-binding ";
+ if(!str.empty())
+ str.pop_back();
+ return str.c_str();
}
\ No newline at end of file
projects / demo / commitdiff