Renderer: Refactor transient resources (allow access at any time)

include/Nazara/Renderer/TransientResources.hpp

@@ -0,0 +1,87 @@
+// Copyright (C) 2023 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
+// This file is part of the "Nazara Engine - Renderer module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#pragma once
+
+#ifndef NAZARA_RENDERER_TRANSIENTRESOURCES_HPP
+#define NAZARA_RENDERER_TRANSIENTRESOURCES_HPP
+
+#include <NazaraUtils/Prerequisites.hpp>
+#include <Nazara/Renderer/Config.hpp>
+#include <Nazara/Renderer/Enums.hpp>
+#include <NazaraUtils/FunctionRef.hpp>
+#include <functional>
+#include <type_traits>
+#include <vector>
+
+namespace Nz
+{
+	class CommandBuffer;
+	class CommandBufferBuilder;
+	class UploadPool;
+
+	class NAZARA_RENDERER_API TransientResources
+	{
+		public:
+			class Releasable;
+			template<typename T> class ReleasableLambda;
+
+			virtual ~TransientResources();
+
+			virtual void Execute(const FunctionRef<void(CommandBufferBuilder& builder)>& callback, QueueTypeFlags queueTypeFlags) = 0;
+
+			inline void FlushReleaseQueue();
+
+			virtual UploadPool& GetUploadPool() = 0;
+
+			template<typename T> void PushForRelease(const T& value) = delete;
+			template<typename T> void PushForRelease(T&& value);
+			template<typename F> void PushReleaseCallback(F&& callback);
+
+			virtual void SubmitCommandBuffer(CommandBuffer* commandBuffer, QueueTypeFlags queueTypeFlags) = 0;
+
+		protected:
+			TransientResources() = default;
+			TransientResources(const TransientResources&) = delete;
+			TransientResources(TransientResources&&) = delete;
+
+		private:
+			static constexpr std::size_t BlockSize = 4 * 1024 * 1024;
+
+			using Block = std::vector<UInt8>;
+
+			std::vector<Releasable*> m_releaseQueue;
+			std::vector<Block> m_releaseMemoryPool;
+	};
+
+	class NAZARA_RENDERER_API TransientResources::Releasable
+	{
+		public:
+			virtual ~Releasable();
+
+			virtual void Release() = 0;
+	};
+
+	template<typename T>
+	class TransientResources::ReleasableLambda : public Releasable
+	{
+		public:
+			template<typename U> ReleasableLambda(U&& lambda);
+			ReleasableLambda(const ReleasableLambda&) = delete;
+			ReleasableLambda(ReleasableLambda&&) = delete;
+			~ReleasableLambda() = default;
+
+			void Release() override;
+
+			ReleasableLambda& operator=(const ReleasableLambda&) = delete;
+			ReleasableLambda& operator=(ReleasableLambda&&) = delete;
+
+		private:
+			T m_lambda;
+	};
+}
+
+#include <Nazara/Renderer/TransientResources.inl>
+
+#endif // NAZARA_RENDERER_TRANSIENTRESOURCES_HPP