116 lines
3.8 KiB
C++
116 lines
3.8 KiB
C++
// Copyright (C) 2024 Jérôme "SirLynix" 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_SPRITECHAINRENDERER_HPP
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#define NAZARA_GRAPHICS_SPRITECHAINRENDERER_HPP
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#include <NazaraUtils/Prerequisites.hpp>
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#include <Nazara/Graphics/ElementRenderer.hpp>
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#include <Nazara/Graphics/RenderSpriteChain.hpp>
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#include <Nazara/Math/Rect.hpp>
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#include <Nazara/Renderer/ShaderBinding.hpp>
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#include <Nazara/Renderer/UploadPool.hpp>
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#include <memory>
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#include <unordered_map>
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#include <vector>
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namespace Nz
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{
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class RenderDevice;
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class RenderPipeline;
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class ShaderBinding;
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class Texture;
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class VertexDeclaration;
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class WorldInstance;
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struct SpriteChainRendererData : public ElementRendererData
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{
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struct DrawCall
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{
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const RenderBuffer* vertexBuffer;
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const RenderPipeline* renderPipeline;
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const ShaderBinding* shaderBinding;
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std::size_t firstIndex;
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std::size_t quadCount;
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Recti scissorBox;
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};
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struct DrawCallIndices
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{
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std::size_t start;
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std::size_t count;
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};
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std::unordered_map<const RenderSpriteChain*, DrawCallIndices> drawCallPerElement;
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std::vector<DrawCall> drawCalls;
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std::vector<std::shared_ptr<RenderBuffer>> vertexBuffers;
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std::vector<ShaderBindingPtr> shaderBindings;
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};
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class NAZARA_GRAPHICS_API SpriteChainRenderer final : public ElementRenderer
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{
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public:
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SpriteChainRenderer(RenderDevice& device, std::size_t maxVertexBufferSize = 32 * 1024);
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~SpriteChainRenderer() = default;
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RenderElementPool<RenderSpriteChain>& GetPool() override;
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std::unique_ptr<ElementRendererData> InstanciateData() override;
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void Prepare(const ViewerInstance& viewerInstance, ElementRendererData& rendererData, RenderResources& currentFrame, std::size_t elementCount, const Pointer<const RenderElement>* elements, SparsePtr<const RenderStates> renderStates) override;
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void PrepareEnd(RenderResources& renderResources, ElementRendererData& rendererData) override;
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void Render(const ViewerInstance& viewerInstance, ElementRendererData& rendererData, CommandBufferBuilder& commandBuffer, std::size_t elementCount, const Pointer<const RenderElement>* elements) override;
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void Reset(ElementRendererData& rendererData, RenderResources& currentFrame) override;
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private:
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void Flush();
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void FlushDrawCall();
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void FlushDrawData();
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struct BufferCopy
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{
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RenderBuffer* targetBuffer;
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UploadPool::Allocation* allocation;
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std::size_t size;
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};
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struct PendingData
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{
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std::size_t firstQuadIndex = 0;
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SpriteChainRendererData::DrawCall* currentDrawCall = nullptr;
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UploadPool::Allocation* currentAllocation = nullptr;
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UInt8* currentAllocationMemPtr = nullptr;
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const VertexDeclaration* currentVertexDeclaration = nullptr;
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RenderBuffer* currentVertexBuffer = nullptr;
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const MaterialInstance* currentMaterialInstance = nullptr;
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const RenderPipeline* currentPipeline = nullptr;
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const ShaderBinding* currentShaderBinding = nullptr;
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const Texture* currentTextureOverlay = nullptr;
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const WorldInstance* currentWorldInstance = nullptr;
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RenderBufferView currentLightData;
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Recti currentScissorBox = Recti(-1, -1, -1, -1);
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};
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struct VertexBufferPool
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{
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std::vector<std::shared_ptr<RenderBuffer>> vertexBuffers;
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};
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std::shared_ptr<RenderBuffer> m_indexBuffer;
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std::shared_ptr<VertexBufferPool> m_vertexBufferPool;
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std::size_t m_maxVertexBufferSize;
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std::size_t m_maxVertexCount;
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std::vector<BufferCopy> m_pendingCopies;
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std::vector<ShaderBinding::Binding> m_bindingCache;
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RenderElementPool<RenderSpriteChain> m_spriteChainPool;
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PendingData m_pendingData;
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RenderDevice& m_device;
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};
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}
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#include <Nazara/Graphics/SpriteChainRenderer.inl>
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#endif // NAZARA_GRAPHICS_SPRITECHAINRENDERER_HPP
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