Graphics: Make use of shader binding sets

src/Nazara/Graphics/WorldInstance.cpp

@@ -0,0 +1,53 @@
+// 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
+
+#include <Nazara/Graphics/WorldInstance.hpp>
+#include <Nazara/Core/StackVector.hpp>
+#include <Nazara/Graphics/Graphics.hpp>
+#include <Nazara/Graphics/MaterialSettings.hpp>
+#include <Nazara/Graphics/PredefinedShaderStructs.hpp>
+#include <Nazara/Renderer/CommandBufferBuilder.hpp>
+#include <Nazara/Renderer/UploadPool.hpp>
+#include <Nazara/Graphics/Debug.hpp>
+
+namespace Nz
+{
+	WorldInstance::WorldInstance() :
+	m_invWorldMatrix(Nz::Matrix4f::Identity()),
+	m_worldMatrix(Nz::Matrix4f::Identity()),
+	m_dataInvalided(true)
+	{
+		Nz::PredefinedInstanceData instanceUboOffsets = Nz::PredefinedInstanceData::GetOffsets();
+
+		m_instanceDataBuffer = Graphics::Instance()->GetRenderDevice()->InstantiateBuffer(BufferType::Uniform);
+		if (!m_instanceDataBuffer->Initialize(instanceUboOffsets.totalSize, Nz::BufferUsage::DeviceLocal | Nz::BufferUsage::Dynamic))
+			throw std::runtime_error("failed to initialize viewer data UBO");
+
+		m_shaderBinding = Graphics::Instance()->GetReferencePipelineLayout()->AllocateShaderBinding(Graphics::WorldBindingSet);
+		m_shaderBinding->Update({
+			{
+				0,
+				ShaderBinding::UniformBufferBinding {
+					m_instanceDataBuffer.get(), 0, m_instanceDataBuffer->GetSize()
+				}
+			}
+		});
+	}
+
+	void WorldInstance::UpdateBuffers(UploadPool& uploadPool, CommandBufferBuilder& builder)
+	{
+		if (m_dataInvalided)
+		{
+			Nz::PredefinedInstanceData instanceUboOffsets = Nz::PredefinedInstanceData::GetOffsets();
+
+			auto& allocation = uploadPool.Allocate(m_instanceDataBuffer->GetSize());
+			Nz::AccessByOffset<Nz::Matrix4f&>(allocation.mappedPtr, instanceUboOffsets.worldMatrixOffset) = m_worldMatrix;
+			Nz::AccessByOffset<Nz::Matrix4f&>(allocation.mappedPtr, instanceUboOffsets.invWorldMatrixOffset) = m_invWorldMatrix;
+
+			builder.CopyBuffer(allocation, m_instanceDataBuffer.get());
+
+			m_dataInvalided = false;
+		}
+	}
+}