Add FrameGraph (WIP)

include/Nazara/Graphics/FramePass.hpp

@@ -0,0 +1,102 @@
+// 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_FRAMEPASS_HPP
+#define NAZARA_FRAMEPASS_HPP
+
+#include <Nazara/Prerequisites.hpp>
+#include <Nazara/Core/Color.hpp>
+#include <Nazara/Graphics/Config.hpp>
+#include <Nazara/Graphics/FramePassAttachment.hpp>
+#include <limits>
+#include <optional>
+#include <string>
+
+namespace Nz
+{
+	class CommandBufferBuilder;
+	class FrameGraph;
+
+	enum class FramePassExecution
+	{
+		Execute,
+		Skip,
+		UpdateAndExecute
+	};
+
+	class NAZARA_GRAPHICS_API FramePass
+	{
+		public:
+			using CommandCallback = std::function<void(CommandBufferBuilder& builder)>;
+			using ExecutionCallback = std::function<FramePassExecution()>;
+			struct DepthStencilClear;
+			struct Input;
+			struct Output;
+
+			inline FramePass(FrameGraph& owner, std::size_t passId, std::string name);
+			FramePass(const FramePass&) = delete;
+			FramePass(FramePass&&) noexcept = default;
+			~FramePass() = default;
+
+			inline std::size_t AddInput(std::size_t attachmentId);
+			inline std::size_t AddOutput(std::size_t attachmentId);
+
+			inline const CommandCallback& GetCommandCallback() const;
+			inline const std::optional<DepthStencilClear>& GetDepthStencilClear() const;
+			inline std::size_t GetDepthStencilInput() const;
+			inline std::size_t GetDepthStencilOutput() const;
+			inline const ExecutionCallback& GetExecutionCallback() const;
+			inline const std::vector<Input>& GetInputs() const;
+			inline const std::vector<Output>& GetOutputs() const;
+			inline std::size_t GetPassId() const;
+
+			inline void SetCommandCallback(CommandCallback callback);
+			inline void SetClearColor(std::size_t outputIndex, const std::optional<Color>& color);
+			inline void SetDepthStencilClear(float depth, UInt32 stencil);
+			inline void SetExecutionCallback(CommandCallback callback);
+
+			inline void SetDepthStencilInput(std::size_t attachmentId);
+			inline void SetDepthStencilOutput(std::size_t attachmentId);
+
+			FramePass& operator=(const FramePass&) = delete;
+			FramePass& operator=(FramePass&&) noexcept = default;
+
+			static constexpr std::size_t InvalidAttachmentId = std::numeric_limits<std::size_t>::max();
+
+			struct DepthStencilClear
+			{
+				float depth;
+				UInt32 stencil;
+			};
+
+			struct Input
+			{
+				std::size_t attachmentId;
+			};
+
+			struct Output
+			{
+				std::size_t attachmentId;
+				std::optional<Color> clearColor;
+			};
+
+		private:
+			std::optional<DepthStencilClear> m_depthStencilClear;
+			std::size_t m_depthStencilInput;
+			std::size_t m_depthStencilOutput;
+			std::size_t m_passId;
+			std::string m_name;
+			std::vector<Input> m_inputs;
+			std::vector<Output> m_outputs;
+			FrameGraph& m_owner;
+			CommandCallback m_commandCallback;
+			ExecutionCallback m_executionCallback;
+	};
+}
+
+#include <Nazara/Graphics/FramePass.inl>
+
+#endif