Add FrameGraph (WIP)

include/Nazara/Graphics/BakedFrameGraph.hpp

@@ -0,0 +1,98 @@
+// Copyright (C) 2017 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Graphics module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#pragma once
+
+#ifndef NAZARA_BAKEDFRAMEGRAPH_HPP
+#define NAZARA_BAKEDFRAMEGRAPH_HPP
+
+#include <Nazara/Prerequisites.hpp>
+#include <Nazara/Graphics/Config.hpp>
+#include <Nazara/Graphics/FramePass.hpp>
+#include <Nazara/Math/Rect.hpp>
+#include <Nazara/Renderer/CommandPool.hpp>
+#include <Nazara/Renderer/Framebuffer.hpp>
+#include <Nazara/Renderer/RenderPass.hpp>
+#include <Nazara/Renderer/Texture.hpp>
+#include <vector>
+
+namespace Nz
+{
+	class RenderFrame;
+
+	class NAZARA_GRAPHICS_API BakedFrameGraph
+	{
+		friend class FrameGraph;
+
+		public:
+			BakedFrameGraph(const BakedFrameGraph&) = delete;
+			BakedFrameGraph(BakedFrameGraph&&) noexcept = default;
+			~BakedFrameGraph() = default;
+
+			void Execute(RenderFrame& renderFrame);
+
+			const std::shared_ptr<Texture>& GetAttachmentTexture(std::size_t attachmentIndex) const;
+			const std::shared_ptr<RenderPass>& GetRenderPass(std::size_t passIndex) const;
+
+			void Resize(unsigned int width, unsigned int height);
+
+			BakedFrameGraph& operator=(const BakedFrameGraph&) = delete;
+			BakedFrameGraph& operator=(BakedFrameGraph&&) noexcept = default;
+
+		private:
+			struct PassData;
+			struct TextureData;
+			using AttachmentIdToTextureId = std::unordered_map<std::size_t /*attachmentId*/, std::size_t /*textureId*/>;
+			using PassIdToPhysicalPassIndex = std::unordered_map<std::size_t /*passId*/, std::size_t /*physicalPassId*/>;
+
+			BakedFrameGraph(std::vector<PassData> passes, std::vector<TextureData> textures, AttachmentIdToTextureId attachmentIdToTextureMapping, PassIdToPhysicalPassIndex passIdToPhysicalPassMapping);
+
+			struct TextureTransition
+			{
+				std::size_t textureId;
+				MemoryAccessFlags dstAccessMask;
+				MemoryAccessFlags srcAccessMask;
+				PipelineStageFlags dstStageMask;
+				PipelineStageFlags srcStageMask;
+				TextureLayout newLayout;
+				TextureLayout oldLayout;
+			};
+
+			struct SubpassData
+			{
+				FramePass::CommandCallback commandCallback;
+			};
+
+			struct PassData
+			{
+				CommandBufferPtr commandBuffer;
+				std::shared_ptr<Framebuffer> framebuffer;
+				std::shared_ptr<RenderPass> renderPass;
+				std::vector<std::size_t> outputTextureIndices;
+				std::vector<SubpassData> subpasses;
+				std::vector<TextureTransition> transitions;
+				FramePass::ExecutionCallback executionCallback;
+				Recti renderRect;
+			};
+
+			struct TextureData
+			{
+				std::shared_ptr<Texture> texture;
+				PixelFormat format;
+				TextureUsageFlags usage;
+				unsigned int width;
+				unsigned int height;
+			};
+
+			std::shared_ptr<CommandPool> m_commandPool;
+			std::vector<PassData> m_passes;
+			std::vector<TextureData> m_textures;
+			AttachmentIdToTextureId m_attachmentToTextureMapping;
+			PassIdToPhysicalPassIndex m_passIdToPhysicalPassMapping;
+	};
+}
+
+#include <Nazara/Graphics/BakedFrameGraph.inl>
+
+#endif