112 lines
3.9 KiB
C++
112 lines
3.9 KiB
C++
// Copyright (C) 2022 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
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// This file is part of the "Nazara Engine - Graphics module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#pragma once
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#ifndef NAZARA_GRAPHICS_SYSTEMS_RENDERSYSTEM_HPP
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#define NAZARA_GRAPHICS_SYSTEMS_RENDERSYSTEM_HPP
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#include <Nazara/Prerequisites.hpp>
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#include <Nazara/Graphics/Graphics.hpp>
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#include <Nazara/Graphics/Components/GraphicsComponent.hpp>
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#include <Nazara/Graphics/Components/LightComponent.hpp>
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#include <Nazara/Utility/Node.hpp>
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#include <Nazara/Utils/MemoryPool.hpp>
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#include <entt/entt.hpp>
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#include <array>
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#include <memory>
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#include <set>
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#include <unordered_map>
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namespace Nz
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{
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class CommandBufferBuilder;
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class FramePipeline;
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class RenderFrame;
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class UploadPool;
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class NAZARA_GRAPHICS_API RenderSystem
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{
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public:
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RenderSystem(entt::registry& registry);
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RenderSystem(const RenderSystem&) = delete;
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RenderSystem(RenderSystem&&) = delete;
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~RenderSystem();
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void Render(entt::registry& registry, RenderFrame& renderFrame);
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RenderSystem& operator=(const RenderSystem&) = delete;
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RenderSystem& operator=(RenderSystem&&) = delete;
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private:
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void OnCameraDestroy(entt::registry& registry, entt::entity entity);
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void OnGraphicsDestroy(entt::registry& registry, entt::entity entity);
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void OnLightDestroy(entt::registry& registry, entt::entity entity);
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void OnNodeDestroy(entt::registry& registry, entt::entity entity);
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void UpdateInstances(entt::registry& registry);
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void UpdateVisibility(entt::registry& registry);
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struct CameraEntity
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{
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entt::entity entity;
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std::size_t poolIndex;
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std::size_t viewerIndex;
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NazaraSlot(Node, OnNodeInvalidation, onNodeInvalidation);
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};
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struct GraphicsEntity
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{
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entt::entity entity;
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std::array<std::size_t, GraphicsComponent::MaxRenderableCount> renderableIndices;
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std::size_t poolIndex;
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std::size_t worldInstanceIndex;
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NazaraSlot(GraphicsComponent, OnRenderableAttached, onRenderableAttached);
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NazaraSlot(GraphicsComponent, OnRenderableDetach, onRenderableDetach);
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NazaraSlot(GraphicsComponent, OnScissorBoxUpdate, onScissorBoxUpdate);
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NazaraSlot(GraphicsComponent, OnVisibilityUpdate, onVisibilityUpdate);
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NazaraSlot(Node, OnNodeInvalidation, onNodeInvalidation);
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};
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struct LightEntity
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{
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entt::entity entity;
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std::array<std::size_t, LightComponent::MaxLightCount> lightIndices;
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std::size_t poolIndex;
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NazaraSlot(LightComponent, OnLightAttached, onLightAttached);
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NazaraSlot(LightComponent, OnLightDetach, onLightDetach);
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NazaraSlot(LightComponent, OnVisibilityUpdate, onVisibilityUpdate);
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NazaraSlot(Node, OnNodeInvalidation, onNodeInvalidation);
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};
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entt::connection m_cameraDestroyConnection;
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entt::connection m_graphicsDestroyConnection;
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entt::connection m_lightDestroyConnection;
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entt::connection m_nodeDestroyConnection;
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entt::observer m_cameraConstructObserver;
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entt::observer m_graphicsConstructObserver;
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entt::observer m_lightConstructObserver;
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std::set<CameraEntity*> m_invalidatedCameraNode;
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std::set<GraphicsEntity*> m_invalidatedGfxWorldNode;
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std::set<LightEntity*> m_invalidatedLightWorldNode;
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std::unique_ptr<FramePipeline> m_pipeline;
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std::unordered_map<entt::entity, CameraEntity*> m_cameraEntities;
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std::unordered_map<entt::entity, GraphicsEntity*> m_graphicsEntities;
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std::unordered_map<entt::entity, LightEntity*> m_lightEntities;
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std::unordered_set<GraphicsEntity*> m_newlyHiddenGfxEntities;
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std::unordered_set<GraphicsEntity*> m_newlyVisibleGfxEntities;
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std::unordered_set<LightEntity*> m_newlyHiddenLightEntities;
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std::unordered_set<LightEntity*> m_newlyVisibleLightEntities;
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MemoryPool<CameraEntity> m_cameraEntityPool;
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MemoryPool<GraphicsEntity> m_graphicsEntityPool;
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MemoryPool<LightEntity> m_lightEntityPool;
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};
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}
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#include <Nazara/Graphics/Systems/RenderSystem.inl>
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#endif // NAZARA_GRAPHICS_SYSTEMS_RENDERSYSTEM_HPP
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