Copy irrlichtmt to <root>/irr/

irr/include/CMeshBuffer.h

@@ -0,0 +1,274 @@
+// Copyright (C) 2002-2012 Nikolaus Gebhardt
+// This file is part of the "Irrlicht Engine".
+// For conditions of distribution and use, see copyright notice in irrlicht.h
+
+#pragma once
+
+#include "irrArray.h"
+#include "IMeshBuffer.h"
+
+namespace irr
+{
+namespace scene
+{
+//! Template implementation of the IMeshBuffer interface
+template <class T>
+class CMeshBuffer : public IMeshBuffer
+{
+public:
+	//! Default constructor for empty meshbuffer
+	CMeshBuffer() :
+			ChangedID_Vertex(1), ChangedID_Index(1), MappingHint_Vertex(EHM_NEVER), MappingHint_Index(EHM_NEVER), HWBuffer(NULL), PrimitiveType(EPT_TRIANGLES)
+	{
+#ifdef _DEBUG
+		setDebugName("CMeshBuffer");
+#endif
+	}
+
+	//! Get material of this meshbuffer
+	/** \return Material of this buffer */
+	const video::SMaterial &getMaterial() const override
+	{
+		return Material;
+	}
+
+	//! Get material of this meshbuffer
+	/** \return Material of this buffer */
+	video::SMaterial &getMaterial() override
+	{
+		return Material;
+	}
+
+	//! Get pointer to vertices
+	/** \return Pointer to vertices. */
+	const void *getVertices() const override
+	{
+		return Vertices.const_pointer();
+	}
+
+	//! Get pointer to vertices
+	/** \return Pointer to vertices. */
+	void *getVertices() override
+	{
+		return Vertices.pointer();
+	}
+
+	//! Get number of vertices
+	/** \return Number of vertices. */
+	u32 getVertexCount() const override
+	{
+		return Vertices.size();
+	}
+
+	//! Get type of index data which is stored in this meshbuffer.
+	/** \return Index type of this buffer. */
+	video::E_INDEX_TYPE getIndexType() const override
+	{
+		return video::EIT_16BIT;
+	}
+
+	//! Get pointer to indices
+	/** \return Pointer to indices. */
+	const u16 *getIndices() const override
+	{
+		return Indices.const_pointer();
+	}
+
+	//! Get pointer to indices
+	/** \return Pointer to indices. */
+	u16 *getIndices() override
+	{
+		return Indices.pointer();
+	}
+
+	//! Get number of indices
+	/** \return Number of indices. */
+	u32 getIndexCount() const override
+	{
+		return Indices.size();
+	}
+
+	//! Get the axis aligned bounding box
+	/** \return Axis aligned bounding box of this buffer. */
+	const core::aabbox3d<f32> &getBoundingBox() const override
+	{
+		return BoundingBox;
+	}
+
+	//! Set the axis aligned bounding box
+	/** \param box New axis aligned bounding box for this buffer. */
+	//! set user axis aligned bounding box
+	void setBoundingBox(const core::aabbox3df &box) override
+	{
+		BoundingBox = box;
+	}
+
+	//! Recalculate the bounding box.
+	/** should be called if the mesh changed. */
+	void recalculateBoundingBox() override
+	{
+		if (!Vertices.empty()) {
+			BoundingBox.reset(Vertices[0].Pos);
+			const irr::u32 vsize = Vertices.size();
+			for (u32 i = 1; i < vsize; ++i)
+				BoundingBox.addInternalPoint(Vertices[i].Pos);
+		} else
+			BoundingBox.reset(0, 0, 0);
+	}
+
+	//! Get type of vertex data stored in this buffer.
+	/** \return Type of vertex data. */
+	video::E_VERTEX_TYPE getVertexType() const override
+	{
+		return T::getType();
+	}
+
+	//! returns position of vertex i
+	const core::vector3df &getPosition(u32 i) const override
+	{
+		return Vertices[i].Pos;
+	}
+
+	//! returns position of vertex i
+	core::vector3df &getPosition(u32 i) override
+	{
+		return Vertices[i].Pos;
+	}
+
+	//! returns normal of vertex i
+	const core::vector3df &getNormal(u32 i) const override
+	{
+		return Vertices[i].Normal;
+	}
+
+	//! returns normal of vertex i
+	core::vector3df &getNormal(u32 i) override
+	{
+		return Vertices[i].Normal;
+	}
+
+	//! returns texture coord of vertex i
+	const core::vector2df &getTCoords(u32 i) const override
+	{
+		return Vertices[i].TCoords;
+	}
+
+	//! returns texture coord of vertex i
+	core::vector2df &getTCoords(u32 i) override
+	{
+		return Vertices[i].TCoords;
+	}
+
+	//! Append the vertices and indices to the current buffer
+	/** Only works for compatible types, i.e. either the same type
+	or the main buffer is of standard type. Otherwise, behavior is
+	undefined.
+	*/
+	void append(const void *const vertices, u32 numVertices, const u16 *const indices, u32 numIndices) override
+	{
+		if (vertices == getVertices())
+			return;
+
+		const u32 vertexCount = getVertexCount();
+		u32 i;
+
+		Vertices.reallocate(vertexCount + numVertices);
+		for (i = 0; i < numVertices; ++i) {
+			Vertices.push_back(static_cast<const T *>(vertices)[i]);
+			BoundingBox.addInternalPoint(static_cast<const T *>(vertices)[i].Pos);
+		}
+
+		Indices.reallocate(getIndexCount() + numIndices);
+		for (i = 0; i < numIndices; ++i) {
+			Indices.push_back(indices[i] + vertexCount);
+		}
+	}
+
+	//! get the current hardware mapping hint
+	E_HARDWARE_MAPPING getHardwareMappingHint_Vertex() const override
+	{
+		return MappingHint_Vertex;
+	}
+
+	//! get the current hardware mapping hint
+	E_HARDWARE_MAPPING getHardwareMappingHint_Index() const override
+	{
+		return MappingHint_Index;
+	}
+
+	//! set the hardware mapping hint, for driver
+	void setHardwareMappingHint(E_HARDWARE_MAPPING NewMappingHint, E_BUFFER_TYPE Buffer = EBT_VERTEX_AND_INDEX) override
+	{
+		if (Buffer == EBT_VERTEX_AND_INDEX || Buffer == EBT_VERTEX)
+			MappingHint_Vertex = NewMappingHint;
+		if (Buffer == EBT_VERTEX_AND_INDEX || Buffer == EBT_INDEX)
+			MappingHint_Index = NewMappingHint;
+	}
+
+	//! Describe what kind of primitive geometry is used by the meshbuffer
+	void setPrimitiveType(E_PRIMITIVE_TYPE type) override
+	{
+		PrimitiveType = type;
+	}
+
+	//! Get the kind of primitive geometry which is used by the meshbuffer
+	E_PRIMITIVE_TYPE getPrimitiveType() const override
+	{
+		return PrimitiveType;
+	}
+
+	//! flags the mesh as changed, reloads hardware buffers
+	void setDirty(E_BUFFER_TYPE Buffer = EBT_VERTEX_AND_INDEX) override
+	{
+		if (Buffer == EBT_VERTEX_AND_INDEX || Buffer == EBT_VERTEX)
+			++ChangedID_Vertex;
+		if (Buffer == EBT_VERTEX_AND_INDEX || Buffer == EBT_INDEX)
+			++ChangedID_Index;
+	}
+
+	//! Get the currently used ID for identification of changes.
+	/** This shouldn't be used for anything outside the VideoDriver. */
+	u32 getChangedID_Vertex() const override { return ChangedID_Vertex; }
+
+	//! Get the currently used ID for identification of changes.
+	/** This shouldn't be used for anything outside the VideoDriver. */
+	u32 getChangedID_Index() const override { return ChangedID_Index; }
+
+	void setHWBuffer(void *ptr) const override
+	{
+		HWBuffer = ptr;
+	}
+
+	void *getHWBuffer() const override
+	{
+		return HWBuffer;
+	}
+
+	u32 ChangedID_Vertex;
+	u32 ChangedID_Index;
+
+	//! hardware mapping hint
+	E_HARDWARE_MAPPING MappingHint_Vertex;
+	E_HARDWARE_MAPPING MappingHint_Index;
+	mutable void *HWBuffer;
+
+	//! Material for this meshbuffer.
+	video::SMaterial Material;
+	//! Vertices of this buffer
+	core::array<T> Vertices;
+	//! Indices into the vertices of this buffer.
+	core::array<u16> Indices;
+	//! Bounding box of this meshbuffer.
+	core::aabbox3d<f32> BoundingBox;
+	//! Primitive type used for rendering (triangles, lines, ...)
+	E_PRIMITIVE_TYPE PrimitiveType;
+};
+
+//! Standard meshbuffer
+typedef CMeshBuffer<video::S3DVertex> SMeshBuffer;
+//! Meshbuffer with two texture coords per vertex, e.g. for lightmaps
+typedef CMeshBuffer<video::S3DVertex2TCoords> SMeshBufferLightMap;
+//! Meshbuffer with vertices having tangents stored, e.g. for normal mapping
+typedef CMeshBuffer<video::S3DVertexTangents> SMeshBufferTangents;
+} // end namespace scene
+} // end namespace irr