301 lines
12 KiB
C++
301 lines
12 KiB
C++
// Copyright (C) 2015 Jérôme Leclercq
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// This file is part of the "Nazara Engine - Utility module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#include <Nazara/Utility/VertexDeclaration.hpp>
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#include <Nazara/Core/Error.hpp>
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#include <Nazara/Core/ErrorFlags.hpp>
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#include <Nazara/Core/OffsetOf.hpp>
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#include <Nazara/Math/Matrix4.hpp>
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#include <Nazara/Utility/Config.hpp>
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#include <Nazara/Utility/Utility.hpp>
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#include <Nazara/Utility/VertexStruct.hpp>
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#include <cstring>
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#include <Nazara/Utility/Debug.hpp>
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namespace Nz
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{
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VertexDeclaration::VertexDeclaration() :
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m_stride(0)
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{
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}
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VertexDeclaration::VertexDeclaration(const VertexDeclaration& declaration) :
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RefCounted(),
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m_components(declaration.m_components),
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m_stride(declaration.m_stride)
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{
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}
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VertexDeclaration::~VertexDeclaration()
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{
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OnVertexDeclarationRelease(this);
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}
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void VertexDeclaration::DisableComponent(VertexComponent component)
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{
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#ifdef NAZARA_DEBUG
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if (component > VertexComponent_Max)
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{
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NazaraError("Vertex component out of enum");
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return;
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}
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#endif
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#if NAZARA_UTILITY_SAFE
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if (component == VertexComponent_Unused)
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{
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NazaraError("Cannot disable \"unused\" component");
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return;
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}
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#endif
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Component& vertexComponent = m_components[component];
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if (vertexComponent.enabled)
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{
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vertexComponent.enabled = false;
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m_stride -= Utility::ComponentStride[vertexComponent.type];
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}
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}
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void VertexDeclaration::EnableComponent(VertexComponent component, ComponentType type, std::size_t offset)
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{
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#ifdef NAZARA_DEBUG
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if (component > VertexComponent_Max)
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{
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NazaraError("Vertex component out of enum");
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return;
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}
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#endif
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#if NAZARA_UTILITY_SAFE
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if (!IsTypeSupported(type))
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{
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NazaraError("Component type 0x" + String::Number(type, 16) + " is not supported by vertex declarations");
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return;
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}
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#endif
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if (component != VertexComponent_Unused)
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{
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Component& vertexComponent = m_components[component];
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if (vertexComponent.enabled)
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m_stride -= Utility::ComponentStride[vertexComponent.type];
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else
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vertexComponent.enabled = true;
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vertexComponent.offset = offset;
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vertexComponent.type = type;
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}
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m_stride += Utility::ComponentStride[type];
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}
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void VertexDeclaration::GetComponent(VertexComponent component, bool* enabled, ComponentType* type, std::size_t* offset) const
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{
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#ifdef NAZARA_DEBUG
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if (component > VertexComponent_Max)
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{
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NazaraError("Vertex component out of enum");
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return;
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}
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#endif
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#if NAZARA_UTILITY_SAFE
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if (component == VertexComponent_Unused)
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{
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NazaraError("Cannot get \"unused\" component");
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return;
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}
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#endif
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const Component& vertexComponent = m_components[component];
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if (enabled)
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*enabled = vertexComponent.enabled;
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if (type)
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*type = vertexComponent.type;
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if (offset)
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*offset = vertexComponent.offset;
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}
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std::size_t VertexDeclaration::GetStride() const
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{
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return m_stride;
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}
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void VertexDeclaration::SetStride(std::size_t stride)
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{
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m_stride = stride;
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}
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VertexDeclaration& VertexDeclaration::operator=(const VertexDeclaration& declaration)
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{
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m_components = declaration.m_components;
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m_stride = declaration.m_stride;
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return *this;
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}
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VertexDeclaration* VertexDeclaration::Get(VertexLayout layout)
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{
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NazaraAssert(layout <= VertexLayout_Max, "Vertex layout out of enum");
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return &s_declarations[layout];
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}
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bool VertexDeclaration::IsTypeSupported(ComponentType type)
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{
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switch (type)
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{
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case ComponentType_Color:
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case ComponentType_Double1:
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case ComponentType_Double2:
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case ComponentType_Double3:
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case ComponentType_Double4:
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case ComponentType_Float1:
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case ComponentType_Float2:
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case ComponentType_Float3:
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case ComponentType_Float4:
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case ComponentType_Int1:
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case ComponentType_Int2:
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case ComponentType_Int3:
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case ComponentType_Int4:
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return true;
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case ComponentType_Quaternion:
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return false;
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}
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NazaraError("Component type not handled (0x" + String::Number(type, 16) + ')');
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return false;
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}
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bool VertexDeclaration::Initialize()
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{
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if (!VertexDeclarationLibrary::Initialize())
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{
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NazaraError("Failed to initialise library");
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return false;
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}
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try
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{
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ErrorFlags flags(ErrorFlag_Silent | ErrorFlag_ThrowException);
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// Layout : Type
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VertexDeclaration* declaration;
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// VertexLayout_XY : VertexStruct_XY
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declaration = &s_declarations[VertexLayout_XY];
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declaration->EnableComponent(VertexComponent_Position, ComponentType_Float2, NazaraOffsetOf(VertexStruct_XY, position));
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NazaraAssert(declaration->GetStride() == sizeof(VertexStruct_XY), "Invalid stride for declaration VertexLayout_XY");
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// VertexLayout_XY_Color : VertexStruct_XY_Color
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declaration = &s_declarations[VertexLayout_XY_Color];
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declaration->EnableComponent(VertexComponent_Position, ComponentType_Float2, NazaraOffsetOf(VertexStruct_XY_Color, position));
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declaration->EnableComponent(VertexComponent_Color, ComponentType_Color, NazaraOffsetOf(VertexStruct_XY_Color, color));
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NazaraAssert(declaration->GetStride() == sizeof(VertexStruct_XY_Color), "Invalid stride for declaration VertexLayout_XY_Color");
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// VertexLayout_XY_UV : VertexStruct_XY_UV
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declaration = &s_declarations[VertexLayout_XY_UV];
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declaration->EnableComponent(VertexComponent_Position, ComponentType_Float2, NazaraOffsetOf(VertexStruct_XY_UV, position));
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declaration->EnableComponent(VertexComponent_TexCoord, ComponentType_Float2, NazaraOffsetOf(VertexStruct_XY_UV, uv));
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NazaraAssert(declaration->GetStride() == sizeof(VertexStruct_XY_UV), "Invalid stride for declaration VertexLayout_XY_UV");
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// VertexLayout_XYZ : VertexStruct_XYZ
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declaration = &s_declarations[VertexLayout_XYZ];
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declaration->EnableComponent(VertexComponent_Position, ComponentType_Float3, NazaraOffsetOf(VertexStruct_XYZ, position));
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NazaraAssert(declaration->GetStride() == sizeof(VertexStruct_XYZ), "Invalid stride for declaration VertexLayout_XYZ");
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// VertexLayout_XYZ_Color : VertexStruct_XYZ_Color
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declaration = &s_declarations[VertexLayout_XYZ_Color];
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declaration->EnableComponent(VertexComponent_Position, ComponentType_Float3, NazaraOffsetOf(VertexStruct_XYZ_Color, position));
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declaration->EnableComponent(VertexComponent_Color, ComponentType_Color, NazaraOffsetOf(VertexStruct_XYZ_Color, color));
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NazaraAssert(declaration->GetStride() == sizeof(VertexStruct_XYZ_Color), "Invalid stride for declaration VertexLayout_XYZ_Color");
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// VertexLayout_XYZ_Color_UV : VertexStruct_XYZ_Color_UV
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declaration = &s_declarations[VertexLayout_XYZ_Color_UV];
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declaration->EnableComponent(VertexComponent_Position, ComponentType_Float3, NazaraOffsetOf(VertexStruct_XYZ_Color_UV, position));
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declaration->EnableComponent(VertexComponent_Color, ComponentType_Color, NazaraOffsetOf(VertexStruct_XYZ_Color_UV, color));
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declaration->EnableComponent(VertexComponent_TexCoord, ComponentType_Float2, NazaraOffsetOf(VertexStruct_XYZ_Color_UV, uv));
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NazaraAssert(declaration->GetStride() == sizeof(VertexStruct_XYZ_Color_UV), "Invalid stride for declaration VertexLayout_XYZ_Color_UV");
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// VertexLayout_XYZ_Normal : VertexStruct_XYZ_Normal
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declaration = &s_declarations[VertexLayout_XYZ_Normal];
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declaration->EnableComponent(VertexComponent_Position, ComponentType_Float3, NazaraOffsetOf(VertexStruct_XYZ_Normal, position));
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declaration->EnableComponent(VertexComponent_Normal, ComponentType_Float3, NazaraOffsetOf(VertexStruct_XYZ_Normal, normal));
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NazaraAssert(declaration->GetStride() == sizeof(VertexStruct_XYZ_Normal), "Invalid stride for declaration VertexLayout_XYZ_Normal");
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// VertexLayout_XYZ_Normal_UV : VertexStruct_XYZ_Normal_UV
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declaration = &s_declarations[VertexLayout_XYZ_Normal_UV];
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declaration->EnableComponent(VertexComponent_Position, ComponentType_Float3, NazaraOffsetOf(VertexStruct_XYZ_Normal_UV, position));
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declaration->EnableComponent(VertexComponent_Normal, ComponentType_Float3, NazaraOffsetOf(VertexStruct_XYZ_Normal_UV, normal));
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declaration->EnableComponent(VertexComponent_TexCoord, ComponentType_Float2, NazaraOffsetOf(VertexStruct_XYZ_Normal_UV, uv));
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NazaraAssert(declaration->GetStride() == sizeof(VertexStruct_XYZ_Normal_UV), "Invalid stride for declaration VertexLayout_XYZ_Normal_UV");
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// VertexLayout_XYZ_Normal_UV_Tangent : VertexStruct_XYZ_Normal_UV_Tangent
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declaration = &s_declarations[VertexLayout_XYZ_Normal_UV_Tangent];
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declaration->EnableComponent(VertexComponent_Position, ComponentType_Float3, NazaraOffsetOf(VertexStruct_XYZ_Normal_UV_Tangent, position));
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declaration->EnableComponent(VertexComponent_Normal, ComponentType_Float3, NazaraOffsetOf(VertexStruct_XYZ_Normal_UV_Tangent, normal));
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declaration->EnableComponent(VertexComponent_TexCoord, ComponentType_Float2, NazaraOffsetOf(VertexStruct_XYZ_Normal_UV_Tangent, uv));
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declaration->EnableComponent(VertexComponent_Tangent, ComponentType_Float3, NazaraOffsetOf(VertexStruct_XYZ_Normal_UV_Tangent, tangent));
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NazaraAssert(declaration->GetStride() == sizeof(VertexStruct_XYZ_Normal_UV_Tangent), "Invalid stride for declaration VertexLayout_XYZ_Normal_UV_Tangent");
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// VertexLayout_XYZ_Normal_UV_Tangent_Skinning : VertexStruct_XYZ_Normal_UV_Tangent_Skinning
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declaration = &s_declarations[VertexLayout_XYZ_Normal_UV_Tangent_Skinning];
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declaration->EnableComponent(VertexComponent_Position, ComponentType_Float3, NazaraOffsetOf(VertexStruct_XYZ_Normal_UV_Tangent_Skinning, position));
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declaration->EnableComponent(VertexComponent_Normal, ComponentType_Float3, NazaraOffsetOf(VertexStruct_XYZ_Normal_UV_Tangent_Skinning, normal));
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declaration->EnableComponent(VertexComponent_TexCoord, ComponentType_Float2, NazaraOffsetOf(VertexStruct_XYZ_Normal_UV_Tangent_Skinning, uv));
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declaration->EnableComponent(VertexComponent_Tangent, ComponentType_Float3, NazaraOffsetOf(VertexStruct_XYZ_Normal_UV_Tangent_Skinning, tangent));
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declaration->EnableComponent(VertexComponent_Unused, ComponentType_Int1, NazaraOffsetOf(VertexStruct_XYZ_Normal_UV_Tangent_Skinning, weightCount));
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declaration->EnableComponent(VertexComponent_Userdata0, ComponentType_Float4, NazaraOffsetOf(VertexStruct_XYZ_Normal_UV_Tangent_Skinning, weights));
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declaration->EnableComponent(VertexComponent_Userdata1, ComponentType_Int4, NazaraOffsetOf(VertexStruct_XYZ_Normal_UV_Tangent_Skinning, jointIndexes));
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NazaraAssert(declaration->GetStride() == sizeof(VertexStruct_XYZ_Normal_UV_Tangent_Skinning), "Invalid stride for declaration VertexLayout_XYZ_Normal_UV_Tangent_Skinning");
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// VertexLayout_XYZ_UV : VertexStruct_XYZ_UV
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declaration = &s_declarations[VertexLayout_XYZ_UV];
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declaration->EnableComponent(VertexComponent_Position, ComponentType_Float3, NazaraOffsetOf(VertexStruct_XYZ_UV, position));
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declaration->EnableComponent(VertexComponent_TexCoord, ComponentType_Float2, NazaraOffsetOf(VertexStruct_XYZ_UV, uv));
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NazaraAssert(declaration->GetStride() == sizeof(VertexStruct_XYZ_UV), "Invalid stride for declaration VertexLayout_XYZ_UV");
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// VertexLayout_Matrix4 : Matrix4f
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declaration = &s_declarations[VertexLayout_Matrix4];
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declaration->EnableComponent(VertexComponent_InstanceData0, ComponentType_Float4, NazaraOffsetOf(Matrix4f, m11));
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declaration->EnableComponent(VertexComponent_InstanceData1, ComponentType_Float4, NazaraOffsetOf(Matrix4f, m21));
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declaration->EnableComponent(VertexComponent_InstanceData2, ComponentType_Float4, NazaraOffsetOf(Matrix4f, m31));
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declaration->EnableComponent(VertexComponent_InstanceData3, ComponentType_Float4, NazaraOffsetOf(Matrix4f, m41));
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NazaraAssert(declaration->GetStride() == sizeof(Matrix4f), "Invalid stride for declaration VertexLayout_Matrix4");
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}
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catch (const std::exception& e)
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{
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NazaraError("Failed to initialize vertex declaration: " + String(e.what()));
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return false;
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}
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return true;
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}
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void VertexDeclaration::Uninitialize()
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{
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VertexDeclarationLibrary::Uninitialize();
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}
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std::array<VertexDeclaration, VertexLayout_Max + 1> VertexDeclaration::s_declarations;
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VertexDeclarationLibrary::LibraryMap VertexDeclaration::s_library;
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}
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