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// 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
#ifndef __C_3DS_MESH_FILE_LOADER_H_INCLUDED__
#define __C_3DS_MESH_FILE_LOADER_H_INCLUDED__
#include "IMeshLoader.h"
#include "IFileSystem.h"
#include "ISceneManager.h"
#include "irrString.h"
#include "SMesh.h"
#include "matrix4.h"
namespace irr
{
namespace scene
{
//! Meshloader capable of loading 3ds meshes.
class C3DSMeshFileLoader : public IMeshLoader
{
public:
//! Constructor
C3DSMeshFileLoader(ISceneManager* smgr, io::IFileSystem* fs);
//! destructor
virtual ~C3DSMeshFileLoader();
//! returns true if the file maybe is able to be loaded by this class
//! based on the file extension (e.g. ".cob")
virtual bool isALoadableFileExtension(const io::path& filename) const;
//! creates/loads an animated mesh from the file.
//! \return Pointer to the created mesh. Returns 0 if loading failed.
//! If you no longer need the mesh, you should call IAnimatedMesh::drop().
//! See IReferenceCounted::drop() for more information.
virtual IAnimatedMesh* createMesh(io::IReadFile* file);
private:
// byte-align structures
#include "irrpack.h"
struct ChunkHeader
{
u16 id;
s32 length;
} PACK_STRUCT;
// Default alignment
#include "irrunpack.h"
struct ChunkData
{
ChunkData() : read(0) {}
ChunkHeader header;
s32 read;
};
struct SCurrentMaterial
{
void clear() {
Material=video::SMaterial();
Name="";
Filename[0]="";
Filename[1]="";
Filename[2]="";
Filename[3]="";
Filename[4]="";
Strength[0]=0.f;
Strength[1]=0.f;
Strength[2]=0.f;
Strength[3]=0.f;
Strength[4]=0.f;
}
video::SMaterial Material;
core::stringc Name;
core::stringc Filename[5];
f32 Strength[5];
};
struct SMaterialGroup
{
SMaterialGroup() : faceCount(0), faces(0) {};
SMaterialGroup(const SMaterialGroup& o)
{
*this = o;
}
~SMaterialGroup()
{
clear();
}
void clear()
{
delete [] faces;
faces = 0;
faceCount = 0;
}
void operator =(const SMaterialGroup& o)
{
MaterialName = o.MaterialName;
faceCount = o.faceCount;
faces = new u16[faceCount];
for (u16 i=0; i<faceCount; ++i)
faces[i] = o.faces[i];
}
core::stringc MaterialName;
u16 faceCount;
u16* faces;
};
bool readChunk(io::IReadFile* file, ChunkData* parent);
bool readMaterialChunk(io::IReadFile* file, ChunkData* parent);
bool readFrameChunk(io::IReadFile* file, ChunkData* parent);
bool readTrackChunk(io::IReadFile* file, ChunkData& data,
IMeshBuffer* mb, const core::vector3df& pivot);
bool readObjectChunk(io::IReadFile* file, ChunkData* parent);
bool readPercentageChunk(io::IReadFile* file, ChunkData* chunk, f32& percentage);
bool readColorChunk(io::IReadFile* file, ChunkData* chunk, video::SColor& out);
void readChunkData(io::IReadFile* file, ChunkData& data);
void readString(io::IReadFile* file, ChunkData& data, core::stringc& out);
void readVertices(io::IReadFile* file, ChunkData& data);
void readIndices(io::IReadFile* file, ChunkData& data);
void readMaterialGroup(io::IReadFile* file, ChunkData& data);
void readTextureCoords(io::IReadFile* file, ChunkData& data);
void composeObject(io::IReadFile* file, const core::stringc& name);
void loadMaterials(io::IReadFile* file);
void cleanUp();
scene::ISceneManager* SceneManager;
io::IFileSystem* FileSystem;
f32* Vertices;
u16* Indices;
u32* SmoothingGroups;
core::array<u16> TempIndices;
f32* TCoords;
u16 CountVertices;
u16 CountFaces; // = CountIndices/4
u16 CountTCoords;
core::array<SMaterialGroup> MaterialGroups;
SCurrentMaterial CurrentMaterial;
core::array<SCurrentMaterial> Materials;
core::array<core::stringc> MeshBufferNames;
core::matrix4 TransformationMatrix;
SMesh* Mesh;
};
} // end namespace scene
} // end namespace irr
#endif
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