Graphics: Add SpriteChainRenderer

src/Nazara/Graphics/Sprite.cpp

@@ -0,0 +1,56 @@
+// 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/Sprite.hpp>
+#include <Nazara/Graphics/Material.hpp>
+#include <Nazara/Graphics/RenderSpriteChain.hpp>
+#include <Nazara/Graphics/WorldInstance.hpp>
+#include <Nazara/Graphics/Debug.hpp>
+
+namespace Nz
+{
+	Sprite::Sprite(std::shared_ptr<Material> material) :
+	InstancedRenderable(Nz::Boxf(-1000.f, -1000.f, -1000.f, 2000.f, 2000.f, 2000.f)),
+	m_material(std::move(material))
+	{
+		m_vertices[0] = VertexStruct_XYZ_Color_UV{ Vector3f(0.f, 0.f, 0.f), Nz::Color::White, Vector2f(0.f, 0.f) };
+		m_vertices[1] = VertexStruct_XYZ_Color_UV{ Vector3f(1.f, 0.f, 0.f), Nz::Color::White, Vector2f(1.f, 0.f) };
+		m_vertices[2] = VertexStruct_XYZ_Color_UV{ Vector3f(0.f, 1.f, 0.f), Nz::Color::White, Vector2f(0.f, 1.f) };
+		m_vertices[3] = VertexStruct_XYZ_Color_UV{ Vector3f(1.f, 1.f, 0.f), Nz::Color::White, Vector2f(1.f, 1.f) };
+	}
+
+	void Sprite::BuildElement(std::size_t passIndex, const WorldInstance& worldInstance, std::vector<std::unique_ptr<RenderElement>>& elements) const
+	{
+		MaterialPass* materialPass = m_material->GetPass(passIndex);
+		if (!materialPass)
+			return;
+
+		const std::shared_ptr<VertexDeclaration>& vertexDeclaration = VertexDeclaration::Get(VertexLayout::XYZ_Color_UV);
+
+		std::vector<RenderPipelineInfo::VertexBufferData> vertexBufferData = {
+			{
+				{
+					0,
+					vertexDeclaration
+				}
+			}
+		};
+		const auto& renderPipeline = materialPass->GetPipeline()->GetRenderPipeline(vertexBufferData);
+
+		elements.emplace_back(std::make_unique<RenderSpriteChain>(0, renderPipeline, vertexDeclaration, 1, m_vertices.data(), materialPass->GetShaderBinding(), worldInstance.GetShaderBinding()));
+	}
+
+	const std::shared_ptr<Material>& Sprite::GetMaterial(std::size_t i) const
+	{
+		assert(i == 0);
+		NazaraUnused(i);
+
+		return m_material;
+	}
+
+	std::size_t Sprite::GetMaterialCount() const
+	{
+		return 1;
+	}
+}