mirror of
https://github.com/minetest/irrlicht.git
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430 lines
10 KiB
C++
430 lines
10 KiB
C++
// Copyright (C) 2002-2012 Nikolaus Gebhardt
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#ifndef __I_SKIN_MESH_BUFFER_H_INCLUDED__
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#define __I_SKIN_MESH_BUFFER_H_INCLUDED__
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#include "IMeshBuffer.h"
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#include "S3DVertex.h"
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namespace irr
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{
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namespace scene
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{
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//! A mesh buffer able to choose between S3DVertex2TCoords, S3DVertex and S3DVertexTangents at runtime
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struct SSkinMeshBuffer : public IMeshBuffer
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{
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//! Default constructor
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SSkinMeshBuffer(video::E_VERTEX_TYPE vt=video::EVT_STANDARD) :
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ChangedID_Vertex(1), ChangedID_Index(1), VertexType(vt),
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PrimitiveType(EPT_TRIANGLES),
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MappingHint_Vertex(EHM_NEVER), MappingHint_Index(EHM_NEVER),
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HWBuffer(NULL),
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BoundingBoxNeedsRecalculated(true)
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{
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#ifdef _DEBUG
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setDebugName("SSkinMeshBuffer");
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#endif
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}
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//! Get Material of this buffer.
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const video::SMaterial& getMaterial() const override
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{
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return Material;
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}
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//! Get Material of this buffer.
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video::SMaterial& getMaterial() override
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{
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return Material;
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}
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//! Get standard vertex at given index
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virtual video::S3DVertex *getVertex(u32 index)
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{
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switch (VertexType)
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{
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case video::EVT_2TCOORDS:
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return (video::S3DVertex*)&Vertices_2TCoords[index];
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case video::EVT_TANGENTS:
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return (video::S3DVertex*)&Vertices_Tangents[index];
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default:
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return &Vertices_Standard[index];
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}
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}
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//! Get pointer to vertex array
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const void* getVertices() const override
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{
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switch (VertexType)
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{
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case video::EVT_2TCOORDS:
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return Vertices_2TCoords.const_pointer();
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case video::EVT_TANGENTS:
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return Vertices_Tangents.const_pointer();
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default:
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return Vertices_Standard.const_pointer();
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}
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}
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//! Get pointer to vertex array
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void* getVertices() override
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{
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switch (VertexType)
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{
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case video::EVT_2TCOORDS:
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return Vertices_2TCoords.pointer();
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case video::EVT_TANGENTS:
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return Vertices_Tangents.pointer();
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default:
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return Vertices_Standard.pointer();
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}
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}
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//! Get vertex count
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u32 getVertexCount() const override
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{
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switch (VertexType)
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{
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case video::EVT_2TCOORDS:
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return Vertices_2TCoords.size();
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case video::EVT_TANGENTS:
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return Vertices_Tangents.size();
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default:
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return Vertices_Standard.size();
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}
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}
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//! Get type of index data which is stored in this meshbuffer.
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/** \return Index type of this buffer. */
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video::E_INDEX_TYPE getIndexType() const override
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{
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return video::EIT_16BIT;
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}
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//! Get pointer to index array
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const u16* getIndices() const override
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{
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return Indices.const_pointer();
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}
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//! Get pointer to index array
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u16* getIndices() override
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{
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return Indices.pointer();
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}
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//! Get index count
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u32 getIndexCount() const override
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{
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return Indices.size();
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}
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//! Get bounding box
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const core::aabbox3d<f32>& getBoundingBox() const override
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{
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return BoundingBox;
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}
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//! Set bounding box
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void setBoundingBox( const core::aabbox3df& box) override
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{
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BoundingBox = box;
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}
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//! Recalculate bounding box
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void recalculateBoundingBox() override
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{
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if(!BoundingBoxNeedsRecalculated)
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return;
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BoundingBoxNeedsRecalculated = false;
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switch (VertexType)
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{
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case video::EVT_STANDARD:
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{
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if (Vertices_Standard.empty())
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BoundingBox.reset(0,0,0);
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else
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{
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BoundingBox.reset(Vertices_Standard[0].Pos);
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for (u32 i=1; i<Vertices_Standard.size(); ++i)
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BoundingBox.addInternalPoint(Vertices_Standard[i].Pos);
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}
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break;
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}
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case video::EVT_2TCOORDS:
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{
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if (Vertices_2TCoords.empty())
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BoundingBox.reset(0,0,0);
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else
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{
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BoundingBox.reset(Vertices_2TCoords[0].Pos);
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for (u32 i=1; i<Vertices_2TCoords.size(); ++i)
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BoundingBox.addInternalPoint(Vertices_2TCoords[i].Pos);
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}
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break;
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}
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case video::EVT_TANGENTS:
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{
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if (Vertices_Tangents.empty())
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BoundingBox.reset(0,0,0);
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else
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{
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BoundingBox.reset(Vertices_Tangents[0].Pos);
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for (u32 i=1; i<Vertices_Tangents.size(); ++i)
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BoundingBox.addInternalPoint(Vertices_Tangents[i].Pos);
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}
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break;
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}
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}
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}
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//! Get vertex type
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video::E_VERTEX_TYPE getVertexType() const override
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{
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return VertexType;
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}
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//! Convert to 2tcoords vertex type
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void convertTo2TCoords()
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{
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if (VertexType==video::EVT_STANDARD)
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{
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for(u32 n=0;n<Vertices_Standard.size();++n)
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{
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video::S3DVertex2TCoords Vertex;
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Vertex.Color=Vertices_Standard[n].Color;
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Vertex.Pos=Vertices_Standard[n].Pos;
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Vertex.Normal=Vertices_Standard[n].Normal;
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Vertex.TCoords=Vertices_Standard[n].TCoords;
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Vertices_2TCoords.push_back(Vertex);
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}
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Vertices_Standard.clear();
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VertexType=video::EVT_2TCOORDS;
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}
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}
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//! Convert to tangents vertex type
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void convertToTangents()
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{
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if (VertexType==video::EVT_STANDARD)
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{
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for(u32 n=0;n<Vertices_Standard.size();++n)
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{
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video::S3DVertexTangents Vertex;
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Vertex.Color=Vertices_Standard[n].Color;
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Vertex.Pos=Vertices_Standard[n].Pos;
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Vertex.Normal=Vertices_Standard[n].Normal;
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Vertex.TCoords=Vertices_Standard[n].TCoords;
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Vertices_Tangents.push_back(Vertex);
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}
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Vertices_Standard.clear();
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VertexType=video::EVT_TANGENTS;
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}
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else if (VertexType==video::EVT_2TCOORDS)
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{
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for(u32 n=0;n<Vertices_2TCoords.size();++n)
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{
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video::S3DVertexTangents Vertex;
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Vertex.Color=Vertices_2TCoords[n].Color;
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Vertex.Pos=Vertices_2TCoords[n].Pos;
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Vertex.Normal=Vertices_2TCoords[n].Normal;
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Vertex.TCoords=Vertices_2TCoords[n].TCoords;
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Vertices_Tangents.push_back(Vertex);
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}
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Vertices_2TCoords.clear();
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VertexType=video::EVT_TANGENTS;
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}
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}
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//! returns position of vertex i
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const core::vector3df& getPosition(u32 i) const override
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{
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switch (VertexType)
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{
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case video::EVT_2TCOORDS:
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return Vertices_2TCoords[i].Pos;
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case video::EVT_TANGENTS:
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return Vertices_Tangents[i].Pos;
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default:
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return Vertices_Standard[i].Pos;
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}
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}
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//! returns position of vertex i
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core::vector3df& getPosition(u32 i) override
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{
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switch (VertexType)
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{
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case video::EVT_2TCOORDS:
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return Vertices_2TCoords[i].Pos;
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case video::EVT_TANGENTS:
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return Vertices_Tangents[i].Pos;
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default:
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return Vertices_Standard[i].Pos;
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}
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}
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//! returns normal of vertex i
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const core::vector3df& getNormal(u32 i) const override
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{
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switch (VertexType)
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{
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case video::EVT_2TCOORDS:
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return Vertices_2TCoords[i].Normal;
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case video::EVT_TANGENTS:
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return Vertices_Tangents[i].Normal;
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default:
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return Vertices_Standard[i].Normal;
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}
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}
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//! returns normal of vertex i
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core::vector3df& getNormal(u32 i) override
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{
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switch (VertexType)
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{
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case video::EVT_2TCOORDS:
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return Vertices_2TCoords[i].Normal;
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case video::EVT_TANGENTS:
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return Vertices_Tangents[i].Normal;
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default:
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return Vertices_Standard[i].Normal;
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}
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}
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//! returns texture coords of vertex i
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const core::vector2df& getTCoords(u32 i) const override
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{
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switch (VertexType)
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{
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case video::EVT_2TCOORDS:
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return Vertices_2TCoords[i].TCoords;
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case video::EVT_TANGENTS:
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return Vertices_Tangents[i].TCoords;
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default:
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return Vertices_Standard[i].TCoords;
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}
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}
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//! returns texture coords of vertex i
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core::vector2df& getTCoords(u32 i) override
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{
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switch (VertexType)
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{
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case video::EVT_2TCOORDS:
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return Vertices_2TCoords[i].TCoords;
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case video::EVT_TANGENTS:
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return Vertices_Tangents[i].TCoords;
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default:
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return Vertices_Standard[i].TCoords;
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}
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}
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//! append the vertices and indices to the current buffer
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void append(const void* const vertices, u32 numVertices, const u16* const indices, u32 numIndices) override {}
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//! get the current hardware mapping hint for vertex buffers
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E_HARDWARE_MAPPING getHardwareMappingHint_Vertex() const override
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{
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return MappingHint_Vertex;
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}
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//! get the current hardware mapping hint for index buffers
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E_HARDWARE_MAPPING getHardwareMappingHint_Index() const override
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{
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return MappingHint_Index;
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}
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//! set the hardware mapping hint, for driver
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void setHardwareMappingHint( E_HARDWARE_MAPPING NewMappingHint, E_BUFFER_TYPE Buffer=EBT_VERTEX_AND_INDEX ) override
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{
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if (Buffer==EBT_VERTEX)
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MappingHint_Vertex=NewMappingHint;
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else if (Buffer==EBT_INDEX)
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MappingHint_Index=NewMappingHint;
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else if (Buffer==EBT_VERTEX_AND_INDEX)
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{
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MappingHint_Vertex=NewMappingHint;
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MappingHint_Index=NewMappingHint;
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}
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}
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//! Describe what kind of primitive geometry is used by the meshbuffer
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void setPrimitiveType(E_PRIMITIVE_TYPE type) override
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{
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PrimitiveType = type;
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}
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//! Get the kind of primitive geometry which is used by the meshbuffer
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E_PRIMITIVE_TYPE getPrimitiveType() const override
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{
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return PrimitiveType;
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}
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//! flags the mesh as changed, reloads hardware buffers
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void setDirty(E_BUFFER_TYPE Buffer=EBT_VERTEX_AND_INDEX) override
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{
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if (Buffer==EBT_VERTEX_AND_INDEX || Buffer==EBT_VERTEX)
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++ChangedID_Vertex;
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if (Buffer==EBT_VERTEX_AND_INDEX || Buffer==EBT_INDEX)
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++ChangedID_Index;
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}
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u32 getChangedID_Vertex() const override {return ChangedID_Vertex;}
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u32 getChangedID_Index() const override {return ChangedID_Index;}
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void setHWBuffer(void *ptr) const override {
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HWBuffer = ptr;
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}
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void *getHWBuffer() const override {
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return HWBuffer;
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}
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//! Call this after changing the positions of any vertex.
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void boundingBoxNeedsRecalculated(void) { BoundingBoxNeedsRecalculated = true; }
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core::array<video::S3DVertexTangents> Vertices_Tangents;
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core::array<video::S3DVertex2TCoords> Vertices_2TCoords;
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core::array<video::S3DVertex> Vertices_Standard;
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core::array<u16> Indices;
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u32 ChangedID_Vertex;
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u32 ChangedID_Index;
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//ISkinnedMesh::SJoint *AttachedJoint;
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core::matrix4 Transformation;
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video::SMaterial Material;
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video::E_VERTEX_TYPE VertexType;
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core::aabbox3d<f32> BoundingBox;
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//! Primitive type used for rendering (triangles, lines, ...)
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E_PRIMITIVE_TYPE PrimitiveType;
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// hardware mapping hint
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E_HARDWARE_MAPPING MappingHint_Vertex:3;
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E_HARDWARE_MAPPING MappingHint_Index:3;
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mutable void *HWBuffer;
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bool BoundingBoxNeedsRecalculated:1;
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};
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} // end namespace scene
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} // end namespace irr
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#endif
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