Initial commit
This is working repository now. I had to clean this up due to my f_ups, that made this simple repo around 200MB large. Signed-off-by: Piotr Krygier <piotrkrygier@everyonecancode@xyz>
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Piotr Krygier
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/**
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* @file graphics_context.h
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* @author Piotr Krygier (piotrkrygier@everyonencancode.xyz)
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* @brief Graphics context for Red Scarf Engine
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* @version 0.1
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* @date 2024-05-22
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*
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* @copyright Copyright (c) 2024
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*
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*/
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#ifndef GRAPHICS_CONTEXT_H
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#define GRAPHICS_CONTEXT_H
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#include <SDL3/SDL.h>
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#include <SDL3/SDL_render.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <vulkan/vulkan.h>
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#include "utilities/entity.h"
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#include "utilities/stack.h"
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#include "utilities/vector.h"
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#include "vma/vk_mem_alloc.h"
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#include "vulkan/vulkan_core.h"
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#include "vulkan_commons.h"
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#define MAX_MESH_NUMBER 256U
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/* FIXME: This is the total number of instances * meshes. It shouldn't be so low */
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#define MAX_INSTANCE_NUMBER (MAX_MESH_NUMBER * 256U)
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#define SWAPCHAIN_IMAGE_COUNT (3U)
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/**
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* @brief Maximum number of textures that can be loaded
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*
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*/
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#define RSE_MAX_IMAGE_COUNT 256
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#define MAX_VULKAN_BUFFERS_COUNT (32U)
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#define MAX_PIPELINE_COUNT 16
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#define MAX_CREATE_INFOS (32U)
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#define MAX_SHADER_STAGES 12U
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#define MAX_SHADER_MODULES_COUNT (128U)
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#define MAX_VERTEX_BINDINGS_COUNT (32U)
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#define MAX_SHADER_ATTRIBUTES_COUNT (32U)
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#define MAX_DYNAMIC_STATES_COUNT (32U)
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#define DESCRIPTOR_MAX_SETS (32U)
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#define DESCRIPTOR_TYPE_ID_MAX_ENUM (21U)
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#define RENDERER_MAX_COUNT MAX_PIPELINE_COUNT
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#define FONT_CHARACTERS_COUNT (94U)
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#define FONTS_MAX_COUNT (32U)
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RSE_STACK_DEFINE(required_dynamic_states_t, VkDynamicState, 16U);
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struct graphics_context_t;
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enum QUEUE_FAMILY_INDEX {
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QUEUE_FAMILY_INDEX_GRAPHICS,
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QUEUE_FAMILY_INDEX_PRESENTATION,
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QUEUE_FAMILY_INDEX_LAST_INDEX,
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};
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enum RENDER_TARGET {
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RENDER_TARGET_3D,
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RENDER_TARGET_2D,
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RENDER_TARGET_COUNT
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};
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/**
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* @brief Represents data within vertex or instance buffer.
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*
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*/
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struct buffer_data_t
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{
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size_t count;
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size_t buffer_offset;
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};
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struct vulkan_buffers_t {
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size_t vulkan_buffers_count;
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struct vulkan_buffer_t vulkan_buffers[MAX_VULKAN_BUFFERS_COUNT];
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};
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/**
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* @brief Wrapper for Vulkan buffer. Holds allocation data;
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*
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*/
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struct vulkan_image_t
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{
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uint8_t id_taken;
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size_t allocated_size;
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VkImage image;
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VkImageView image_view;
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VmaAllocation allocation;
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VmaAllocationInfo allocation_info;
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};
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RSE_VECTOR_DEFINE(instance_vector_t, struct instance_data_t);
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/**
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* @brief Mesh data, with unique id and dynamic arrays holding vertices and indices.
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* One mesh can have multiple instances.
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*
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*/
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struct mesh_t
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{
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size_t vertex_count;
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bool is_dirty;
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size_t entities_count;
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entity_t* entities; /* Which entities are connected to this mesh */
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size_t index_count;
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size_t instances_count;
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struct instance_vector_t instances_data;
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};
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struct shader_modules_t
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{
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uint16_t shader_modules_count;
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VkShaderModule shader_modules[MAX_SHADER_MODULES_COUNT];
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VkShaderStageFlagBits shaders_stages[MAX_SHADER_MODULES_COUNT];
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};
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struct pipeline_infos_t
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{
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size_t pipeline_create_infos_count;
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VkGraphicsPipelineCreateInfo create_infos[MAX_CREATE_INFOS];
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};
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struct pipeline_t
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{
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VkPipeline pipeline;
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uint8_t id;
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/* Shader stages */
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size_t shader_stages_count;
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VkPipelineShaderStageCreateInfo shader_stages[MAX_SHADER_STAGES];
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/* Input assembly */
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VkPipelineInputAssemblyStateCreateInfo input_assembly;
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/* Viewport state */
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VkPipelineViewportStateCreateInfo viewport_state;
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/* Rasterizer */
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VkPipelineRasterizationStateCreateInfo rasterizer;
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/* Multisampling */
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VkPipelineMultisampleStateCreateInfo multisampling;
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/* Color blending */
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VkPipelineColorBlendAttachmentState color_blend_attachment;
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VkPipelineColorBlendStateCreateInfo color_blending;
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/* Depth stencil */
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VkPipelineDepthStencilStateCreateInfo depth_stencil;
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VkPipelineLayout pipeline_layout;
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size_t vertex_bindings_count;
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VkVertexInputBindingDescription vertex_bindings[MAX_VERTEX_BINDINGS_COUNT];
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size_t shader_attributes_count;
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VkVertexInputAttributeDescription shader_attributes[MAX_SHADER_ATTRIBUTES_COUNT];
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size_t dynamic_states_count;
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VkDynamicState dynamic_states[MAX_DYNAMIC_STATES_COUNT];
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struct required_dynamic_states_t required_dynamic_states;
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struct descriptor_set_handle_t* descriptor_sets;
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};
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struct pipeline_internal_t
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{
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uint32_t descriptor_set_ids[MAX_PIPELINE_COUNT];
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size_t pipelines_count;
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size_t pipeline_layouts_count;
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VkPipeline pipelines[MAX_PIPELINE_COUNT];
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VkPipelineLayout pipeline_layouts[MAX_PIPELINE_COUNT];
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};
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struct descriptor_data_t
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{
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uint32_t pool_sizes_count;
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uint32_t descriptor_sets_count;
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VkDescriptorPool descriptor_pool;
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VkDescriptorPoolSize pool_sizes[DESCRIPTOR_TYPE_ID_MAX_ENUM];
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VkDescriptorSet descriptor_sets[DESCRIPTOR_MAX_SETS];
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VkDescriptorSetLayout set_layouts[DESCRIPTOR_MAX_SETS];
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};
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struct render_target_t
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{
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struct vulkan_buffer_t vertex_buffer;
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struct vulkan_buffer_t index_buffer;
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size_t instances_data_size;
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struct vulkan_buffer_t instance_buffer;
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struct vulkan_buffer_t draw_indirect_command_buffer;
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};
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struct swapchain_data_t
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{
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VkSwapchainKHR swapchain;
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VkImageView swapchain_image_views[SWAPCHAIN_IMAGE_COUNT];
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VkExtent2D swapchain_extent;
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VkFramebuffer swapchain_framebuffers[SWAPCHAIN_IMAGE_COUNT];
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VkImage swapchain_images[SWAPCHAIN_IMAGE_COUNT];
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};
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struct vulkan_handles
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{
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VkSampler sampler;
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VkPhysicalDevice physical_device;
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VkDevice device;
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VmaAllocator allocator;
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VkSurfaceKHR surface;
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VkInstance instance;
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VkQueue graphics_queue;
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VkQueue present_queue;
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VkCommandPool command_pool;
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VkCommandBuffer command_buffers[SWAP_BUFFER_COUNT];
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VkRenderPass render_pass;
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VkSemaphore image_available_semaphores[SWAP_BUFFER_COUNT];
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VkSemaphore render_finished_semaphores[SWAP_BUFFER_COUNT];
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VkFence in_flight_fences[SWAP_BUFFER_COUNT];
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#ifndef NDEBUG
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VkDebugUtilsMessengerEXT debug_messenger;
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#endif // !NDEBUG
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};
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struct mesh_data_t {
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uint32_t mesh_count;
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struct mesh_t mesh_bucket[MAX_MESH_NUMBER];
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};
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struct debug_overlay_t
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{
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uint16_t texture_id;
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uint32_t* pixels;
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size_t pixels_size;
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struct vulkan_image_t image_handle;
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VkSampler sampler;
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};
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typedef rse_err_t(*renderer_function_t)(struct graphics_context_t* context, uint32_t renderer_id);
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struct renderer_t {
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renderer_function_t render_function;
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};
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struct renderer_data_t {
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size_t renderers_count;
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struct renderer_t renderers[RENDERER_MAX_COUNT];
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};
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struct font_character_data_t {
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uint32_t mesh_id;
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uint16_t texture_id;
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};
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struct sized_font_data_t {
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uint8_t font_size;
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struct font_character_data_t font_characters[FONT_CHARACTERS_COUNT];
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};
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struct fonts_data_t {
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struct sized_font_data_t fonts[FONTS_MAX_COUNT];
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};
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struct graphics_context_t
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{
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bool is_framebuffer_resized;
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uint32_t queue_family_indices[QUEUE_FAMILY_INDEX_LAST_INDEX];
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uint32_t current_frame;
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uint32_t swapchain_images_count;
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SDL_Window* window_handle;
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struct renderer_data_t renderer_data;
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struct debug_overlay_t debug_overlay;
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struct vulkan_handles vulkan_handles;
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struct swapchain_data_t swapchain_data;
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struct descriptor_data_t descriptor_data;
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struct pipeline_internal_t pipelines_data;
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struct render_target_t render_targets[RENDER_TARGET_COUNT];
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struct vulkan_buffers_t uniform_buffers;
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struct vulkan_image_t texture_images[RSE_MAX_IMAGE_COUNT];
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struct vulkan_image_t depth_image;
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struct vulkan_image_t color_image;
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struct shader_modules_t shader_modules;
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struct mesh_data_t mesh_data;
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struct fonts_data_t fonts_data;
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};
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#endif /* GRAPHICS_CONTEXT_H */
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