139 lines
3 KiB
C++
139 lines
3 KiB
C++
// vulkan_guide.h : Include file for standard system include files,
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// or project specific include files.
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#pragma once
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#include <vk_types.h>
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#include <vk_descriptors.h>
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struct ComputePushConstants {
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glm::vec4 data1;
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glm::vec4 data2;
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glm::vec4 data3;
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glm::vec4 data4;
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};
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struct ComputeEffect {
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const char *name;
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VkPipeline pipeline;
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VkPipelineLayout layout;
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ComputePushConstants data;
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};
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struct DeletionQueue {
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std::deque<std::function<void()>> deletors;
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void push_function(std::function<void()>&& function) {
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deletors.push_back(function);
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}
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void flush() {
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// reverse itererate the deletion queue
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for(auto it = deletors.rbegin(); it != deletors.rend(); it++) {
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(*it)();
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}
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deletors.clear();
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}
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};
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struct FrameData {
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VkCommandPool _commandPool;
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VkCommandBuffer _mainCommandBuffer;
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VkSemaphore _swapchainSemaphore;
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VkSemaphore _renderSemaphore;
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VkFence _renderFence;
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DeletionQueue _deletionQueue;
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};
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constexpr unsigned int FRAME_OVERLAP=2;
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class VulkanEngine {
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public:
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VkFence _immFence;
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VkCommandBuffer _immCommandBuffer;
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VkCommandPool _immCommandPool;
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VkPipeline _gradientPipeline;
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VkPipelineLayout _gradientPipelineLayout;
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DescriptorAllocator globalDescriptorAllocator;
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VkDescriptorSet _drawImageDescriptors;
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VkDescriptorSetLayout _drawImageDescriptorLayout;
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// device selection
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VkInstance _instance;
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VkDebugUtilsMessengerEXT _debug_messenger;
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VkPhysicalDevice _chosenGPU;
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VkDevice _device;
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VkSurfaceKHR _surface;
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// swapchain
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VkSwapchainKHR _swapchain;
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VkFormat _swapchainImageFormat;
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std::vector<VkImage> _swapchainImages;
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std::vector<VkImageView> _swapchainImageViews;
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VkExtent2D _swapchainExtent;
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// VMA stuff
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VmaAllocator _allocator;
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// frames/command buffer
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unsigned int _frameNumber = 0;
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FrameData _frames[FRAME_OVERLAP];
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FrameData& get_current_frame() {
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return _frames[_frameNumber % FRAME_OVERLAP];
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}
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VkQueue _graphicsQueue;
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uint32_t _graphicsQueueFamily;
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// draw resources
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AllocatedImage _drawImage;
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VkExtent2D _drawExtent;
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// internal data
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bool _isInitialized{ false };
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VkExtent2D _windowExtent{ 1700 , 900 };
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struct SDL_Window* _window{ nullptr };
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DeletionQueue _mainDeletionQueue;
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// imgui shader stuff
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std::vector<ComputeEffect> backgroundEffects;
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int currentBackgroundEffect{0};
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static VulkanEngine& Get();
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//initializes everything in the engine
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void init();
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//shuts down the engine
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void cleanup();
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//draw loop
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void draw();
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//run main loop
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void run();
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void immediate_submit(std::function<void(VkCommandBuffer cmd)>&& function);
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private:
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void init_vulkan();
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void init_swapchain();
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void init_commands();
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void init_sync_structures();
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void init_descriptors();
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void init_pipelines();
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void init_background_pipelines();
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void init_imgui();
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void create_swapchain(uint32_t width, uint32_t height);
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void destroy_swapchain();
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void draw_background(VkCommandBuffer cmd);
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void draw_imgui(VkCommandBuffer cmd, VkImageView targetImageView);
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void render_imgui();
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};
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