instance.h

#pragma once
 
#include <volk.h>
 
#include <vector>
 
#ifndef VK_API_VERSION_1_1
#define VK_API_VERSION_1_1 VK_MAKE_VERSION(1, 1, 0)
#endif
 
namespace pixelbullet
{
struct ApplicationSpecification;
class Window;
 
class Instance
{
    friend class Graphics;
 
public:
    friend VKAPI_ATTR VkBool32 VKAPI_CALL CallbackDebug(VkDebugUtilsMessageSeverityFlagBitsEXT message_severity,
                                                        VkDebugUtilsMessageTypeFlagsEXT message_types,
                                                        const VkDebugUtilsMessengerCallbackDataEXT* p_callback_data, void* p_user_data);
 
    Instance(const ApplicationSpecification& specification, const Window& window);
    ~Instance();
 
    static VkResult FvkCreateDebugUtilsMessengerEXT(VkInstance instance, const VkDebugUtilsMessengerCreateInfoEXT* p_create_info,
                                                    const VkAllocationCallbacks* p_allocator, VkDebugUtilsMessengerEXT* p_debug_messenger);
    static void FvkDestroyDebugUtilsMessengerEXT(VkInstance instance, VkDebugUtilsMessengerEXT messenger,
                                                 const VkAllocationCallbacks* p_allocator);
 
    static uint32_t FindMemoryTypeIndex(const VkPhysicalDeviceMemoryProperties* device_memory_properties,
                                        const VkMemoryRequirements* memory_requirements, VkMemoryPropertyFlags required_properties);
 
    operator const VkInstance&() const
    {
        return instance_;
    }
 
    bool GetEnableValidationLayers() const
    {
        return enable_validation_layers_;
    }
    const VkInstance& GetInstance() const
    {
        return instance_;
    }
 
public:
    static const std::vector<const char*> validation_layers;
 
private:
    bool CheckValidationLayerSupport() const;
    std::vector<const char*> GetExtensions() const;
    void CreateInstance();
    void CreateDebugMessenger();
 
private:
    static void LogVulkanLayers(const std::vector<VkLayerProperties>& layer_properties);
 
private:
    const ApplicationSpecification& specification_;
    const Window& window_;
    bool enable_validation_layers_ = false;
 
    VkInstance instance_ = VK_NULL_HANDLE;
    VkDebugUtilsMessengerEXT debug_messenger_ = VK_NULL_HANDLE;
};
} // namespace pixelbullet