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Runtime/Includes/Graphics/Material.h

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+#ifndef __SCOP_RENDERER_MATERIAL__
+#define __SCOP_RENDERER_MATERIAL__
+
+#include <memory>
+
+#include <Core/EventBus.h>
+#include <Renderer/Image.h>
+#include <Renderer/Buffer.h>
+#include <Renderer/Descriptor.h>
+
+namespace Scop
+{
+	struct MaterialTextures
+	{
+		std::shared_ptr<Texture> albedo;
+	};
+
+	struct MaterialData
+	{
+		float dissolve_texture_factor = 1.0f;
+		float dissolve_black_white_colors_factor = 1.0f;
+		float dissolve_normals_colors_factor = 0.0f;
+		std::uint8_t __padding[4];
+	};
+
+	class Material
+	{
+		friend class Model;
+
+		public:
+			Material() { m_data_buffer.Init(sizeof(m_data)); SetupEventListener(); }
+			Material(const MaterialTextures& textures) : m_textures(textures) { m_data_buffer.Init(sizeof(m_data)); SetupEventListener(); }
+
+			inline void SetMaterialData(const MaterialData& data) noexcept { m_data = data; }
+
+			~Material() { m_data_buffer.Destroy(); }
+
+		private:
+			[[nodiscard]] inline bool IsSetInit() const noexcept { return p_set && p_set->IsInit(); }
+			[[nodiscard]] inline VkDescriptorSet GetSet(std::size_t frame_index) const noexcept { return p_set->GetSet(frame_index); }
+
+			inline void SetupEventListener()
+			{
+				std::function<void(const EventBase&)> functor = [this](const EventBase& event)
+				{
+					if(event.What() == Event::FrameBeginEventCode)
+						m_have_been_updated_this_frame = false;
+				};
+				EventBus::RegisterListener({ functor, "__ScopMaterial" + std::to_string(reinterpret_cast<std::uintptr_t>(this)) });
+			}
+
+			inline void UpdateDescriptorSet(std::shared_ptr<DescriptorSet> set)
+			{
+				p_set = RenderCore::Get().GetDescriptorPoolManager().GetAvailablePool().RequestDescriptorSet(set->GetShaderLayout(), set->GetShaderType());
+			}
+
+			inline void Bind(std::size_t frame_index, VkCommandBuffer cmd)
+			{
+				if(m_have_been_updated_this_frame)
+					return;
+				p_set->SetImage(frame_index, 0, *m_textures.albedo);
+				p_set->SetUniformBuffer(frame_index, 1, m_data_buffer.Get(frame_index));
+				p_set->Update(frame_index, cmd);
+
+				static CPUBuffer buffer(sizeof(MaterialData));
+				std::memcpy(buffer.GetData(), &m_data, buffer.GetSize());
+				m_data_buffer.SetData(buffer, frame_index);
+
+				m_have_been_updated_this_frame = true;
+			}
+
+		private:
+			UniformBuffer m_data_buffer;
+			MaterialTextures m_textures;
+			MaterialData m_data;
+			std::shared_ptr<DescriptorSet> p_set;
+			bool m_have_been_updated_this_frame = false;
+	};
+}
+
+#endif