67 lines
3.0 KiB
C++
67 lines
3.0 KiB
C++
// Copyright (C) 2017 Jérôme Leclercq
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// This file is part of the "Nazara Engine - Graphics module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#include <Nazara/Graphics/ViewerInstance.hpp>
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#include <Nazara/Core/StackVector.hpp>
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#include <Nazara/Graphics/Graphics.hpp>
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#include <Nazara/Graphics/MaterialSettings.hpp>
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#include <Nazara/Graphics/PredefinedShaderStructs.hpp>
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#include <Nazara/Renderer/CommandBufferBuilder.hpp>
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#include <Nazara/Renderer/UploadPool.hpp>
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#include <Nazara/Graphics/Debug.hpp>
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namespace Nz
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{
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ViewerInstance::ViewerInstance() :
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m_invProjectionMatrix(Nz::Matrix4f::Identity()),
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m_invViewProjMatrix(Nz::Matrix4f::Identity()),
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m_invViewMatrix(Nz::Matrix4f::Identity()),
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m_projectionMatrix(Nz::Matrix4f::Identity()),
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m_viewProjMatrix(Nz::Matrix4f::Identity()),
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m_viewMatrix(Nz::Matrix4f::Identity()),
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m_targetSize(Nz::Vector2f(0.f, 0.f)),
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m_dataInvalided(true)
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{
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Nz::PredefinedViewerData viewerUboOffsets = Nz::PredefinedViewerData::GetOffsets();
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m_viewerDataBuffer = Graphics::Instance()->GetRenderDevice()->InstantiateBuffer(BufferType::Uniform);
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if (!m_viewerDataBuffer->Initialize(viewerUboOffsets.totalSize, Nz::BufferUsage::DeviceLocal | Nz::BufferUsage::Dynamic))
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throw std::runtime_error("failed to initialize viewer data UBO");
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m_shaderBinding = Graphics::Instance()->GetReferencePipelineLayout()->AllocateShaderBinding(Graphics::ViewerBindingSet);
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m_shaderBinding->Update({
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{
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0,
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ShaderBinding::UniformBufferBinding {
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m_viewerDataBuffer.get(), 0, m_viewerDataBuffer->GetSize()
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}
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}
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});
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}
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void ViewerInstance::UpdateBuffers(UploadPool& uploadPool, CommandBufferBuilder& builder)
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{
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if (m_dataInvalided)
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{
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Nz::PredefinedViewerData viewerDataOffsets = Nz::PredefinedViewerData::GetOffsets();
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auto& allocation = uploadPool.Allocate(viewerDataOffsets.totalSize);
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Nz::AccessByOffset<Nz::Vector3f&>(allocation.mappedPtr, viewerDataOffsets.eyePositionOffset) = m_viewMatrix.GetTranslation();
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Nz::AccessByOffset<Nz::Vector2f&>(allocation.mappedPtr, viewerDataOffsets.invTargetSizeOffset) = 1.f / m_targetSize;
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Nz::AccessByOffset<Nz::Vector2f&>(allocation.mappedPtr, viewerDataOffsets.targetSizeOffset) = m_targetSize;
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Nz::AccessByOffset<Nz::Matrix4f&>(allocation.mappedPtr, viewerDataOffsets.invProjMatrixOffset) = m_invProjectionMatrix;
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Nz::AccessByOffset<Nz::Matrix4f&>(allocation.mappedPtr, viewerDataOffsets.invViewMatrixOffset) = m_invViewMatrix;
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Nz::AccessByOffset<Nz::Matrix4f&>(allocation.mappedPtr, viewerDataOffsets.invViewProjMatrixOffset) = m_invViewProjMatrix;
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Nz::AccessByOffset<Nz::Matrix4f&>(allocation.mappedPtr, viewerDataOffsets.projMatrixOffset) = m_projectionMatrix;
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Nz::AccessByOffset<Nz::Matrix4f&>(allocation.mappedPtr, viewerDataOffsets.viewProjMatrixOffset) = m_viewProjMatrix;
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Nz::AccessByOffset<Nz::Matrix4f&>(allocation.mappedPtr, viewerDataOffsets.viewMatrixOffset) = m_viewMatrix;
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builder.CopyBuffer(allocation, m_viewerDataBuffer.get());
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m_dataInvalided = false;
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}
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}
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}
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