Merge branch 'ahem'

Conflicts:
	include/Algo/Import/import2tables.h
	include/Algo/Import/import2tablesSurface.hpp

include/Algo/Import/AHEM.h

+#ifndef __AHEM_H__
+#define __AHEM_H__
+
+
+
+
+#include <string>
+
+
+
+#ifdef _WIN32
+
+typedef __int8				stInt8;
+typedef __int16				stInt16;
+typedef	__int32				stInt32;
+typedef	__int64				stInt64;
+
+typedef unsigned __int8		stUInt8;
+typedef unsigned __int16	stUInt16;
+typedef	unsigned __int32	stUInt32;
+typedef	unsigned __int64	stUInt64;
+
+
+#else
+
+#include <stdint.h>
+
+typedef int8_t		stInt8;
+typedef int16_t		stInt16;
+typedef	int32_t		stInt32;
+typedef	int64_t		stInt64;
+
+typedef uint8_t		stUInt8;
+typedef uint16_t	stUInt16;
+typedef	uint32_t	stUInt32;
+typedef	uint64_t	stUInt64;
+
+#endif
+
+
+#ifdef _WIN32
+#include <InitGuid.h>
+#define DEFINE_GUID_INFUNC(name, dw, w0, w1, b0, b1, b2, b3, b4, b5, b6, b7)	static const GUID name = { dw, w0, w1, { b0, b1, b2, b3, b4, b5, b6, b7 } }
+#else
+#include <uuid/uuid.h>
+#define DEFINE_GUID(name, dw, w0, w1, b0, b1, b2, b3, b4, b5, b6, b7)  UUID_DEFINE(name, dw & 0xff, (dw >> 8) & 0xff, (dw >> 16) & 0xff, (dw >> 24) & 0xff, w0 & 0xff, (w0 >> 8) & 0xff, w1 & 0xff, (w1 >> 8) & 0xff, b0, b1, b2, b3, b4, b5, b6, b7)
+#define DEFINE_GUID_INFUNC DEFINE_GUID
+typedef uuid_t GUID;
+#endif
+
+
+inline bool IsEqualGUID(const stUInt8* v1, const GUID& v2)
+{
+	const stUInt32* w1 = (stUInt32*)v1;
+	const stUInt32* w2 = (stUInt32*)&v2;
+
+	return w1[0] == w2[0] && w1[1] == w2[1] && w1[2] == w2[2] && w1[3] == w2[3];
+}
+
+
+
+// {1B8E15D6-FE16-44E2-BDC8-9FBA3420B267}
+DEFINE_GUID(AHEMDATATYPE_INT8, 0x1b8e15d6, 0xfe16, 0x44e2, 0xbd, 0xc8, 0x9f, 0xba, 0x34, 0x20, 0xb2, 0x67);
+// {3D772789-9D2A-4527-8709-5B3E08BDD071}
+DEFINE_GUID(AHEMDATATYPE_UINT8, 0x3d772789, 0x9d2a, 0x4527, 0x87, 0x9, 0x5b, 0x3e, 0x8, 0xbd, 0xd0, 0x71);
+// {E6D2DD95-A4EF-4EA3-82FF-12F4BAB40C51}
+DEFINE_GUID(AHEMDATATYPE_INT16, 0xe6d2dd95, 0xa4ef, 0x4ea3, 0x82, 0xff, 0x12, 0xf4, 0xba, 0xb4, 0xc, 0x51);
+// {5A926579-9586-413B-BEF5-992E0A9CA8E5}
+DEFINE_GUID(AHEMDATATYPE_UINT16, 0x5a926579, 0x9586, 0x413b, 0xbe, 0xf5, 0x99, 0x2e, 0xa, 0x9c, 0xa8, 0xe5);
+// {717210F9-4AB4-4ED3-9ACC-8AC89AA6BE55}
+DEFINE_GUID(AHEMDATATYPE_INT32, 0x717210f9, 0x4ab4, 0x4ed3, 0x9a, 0xcc, 0x8a, 0xc8, 0x9a, 0xa6, 0xbe, 0x55);
+// {9EA6E534-B251-44C7-B40C-C33CCCD6C18F}
+DEFINE_GUID(AHEMDATATYPE_UINT32, 0x9ea6e534, 0xb251, 0x44c7, 0xb4, 0xc, 0xc3, 0x3c, 0xcc, 0xd6, 0xc1, 0x8f);
+// {F10D01EF-D677-453B-B7A7-E3C85E56A18D}
+DEFINE_GUID(AHEMDATATYPE_INT64, 0xf10d01ef, 0xd677, 0x453b, 0xb7, 0xa7, 0xe3, 0xc8, 0x5e, 0x56, 0xa1, 0x8d);
+// {C0FD73C4-8A06-4CB0-86D4-1B305BCEC3C7}
+DEFINE_GUID(AHEMDATATYPE_UINT64, 0xc0fd73c4, 0x8a06, 0x4cb0, 0x86, 0xd4, 0x1b, 0x30, 0x5b, 0xce, 0xc3, 0xc7);
+// {2BD6E606-E3E3-4873-AA23-21D552EB11B3}
+DEFINE_GUID(AHEMDATATYPE_FLOAT32, 0x2bd6e606, 0xe3e3, 0x4873, 0xaa, 0x23, 0x21, 0xd5, 0x52, 0xeb, 0x11, 0xb3);
+// {4CC5D944-4336-49B0-901D-842E30E87D3E}
+DEFINE_GUID(AHEMDATATYPE_FLOAT64, 0x4cc5d944, 0x4336, 0x49b0, 0x90, 0x1d, 0x84, 0x2e, 0x30, 0xe8, 0x7d, 0x3e);
+
+
+
+// {0FDAF25D-2389-4A6D-BE3B-F8C00D118F23}
+DEFINE_GUID(AHEMATTRIBUTE_POSITION, 0xfdaf25d, 0x2389, 0x4a6d, 0xbe, 0x3b, 0xf8, 0xc0, 0xd, 0x11, 0x8f, 0x23);
+
+
+
+
+#define AHEM_MAGIC 0x4148454D
+
+#ifdef _WIN32
+typedef enum : stUInt32
+#else
+typedef enum
+#endif
+{
+	AHEMATTROWNER_UNKNOWN		= 0,
+	AHEMATTROWNER_HALFEDGE		= 1,
+	AHEMATTROWNER_VERTEX		= 2,
+	AHEMATTROWNER_FACE			= 3,
+	AHEMATTROWNER_HE_FACECORNER	= 4,
+#ifndef _WIN32
+	AHEMATTROWNER_FORCE_DWORD	= 0xffffffff
+#endif
+} AHEMAttributeOwner;
+
+
+#pragma pack(push, 1)
+
+typedef struct
+{
+	stUInt32 meshChunkSize;
+
+	stUInt32 heCount;
+	stUInt32 vxCount;
+	stUInt32 faceCount;
+
+	stUInt32 faceMaxSize;
+} AHEMTopologyHeader;
+
+
+typedef struct
+{
+	stUInt32			fileStartOffset;
+	stUInt32			attributeChunkSize;
+
+	stUInt8				semantic[16];			// Semantic GUID
+	
+	AHEMAttributeOwner	owner;	
+	stUInt32			attrPodSize;			// 0 means non-pod-stored attribute
+	stUInt8				dataType[16];			// datatype GUID
+	stUInt32			dimension;
+	
+	stUInt32			nameSize;
+} AHEMAttributeDescriptor;
+
+
+
+#define AHEM_MAGIC 0x4148454D
+
+typedef struct
+{
+	stUInt32			magic;
+	stUInt32			version;
+
+	AHEMTopologyHeader	meshHdr;
+	stUInt32			meshFileStartOffset;
+
+	stUInt32			attributesChunkNumber;
+} AHEMHeader;
+
+
+typedef struct
+{
+	stUInt32 batchLength;
+	stUInt32 batchFaceSize;
+} AHEMFaceBatchDescriptor;
+
+
+#pragma pack(pop)
+
+
+
+
+#endif			// __AHEM_H__

include/Algo/Import/AHEMImporter.h

+/*******************************************************************************
+* CGoGN: Combinatorial and Geometric modeling with Generic N-dimensional Maps  *
+* version 0.1                                                                  *
+* Copyright (C) 2009, IGG Team, LSIIT, University of Strasbourg                *
+*                                                                              *
+* This library is free software; you can redistribute it and/or modify it      *
+* under the terms of the GNU Lesser General Public License as published by the *
+* Free Software Foundation; either version 2.1 of the License, or (at your     *
+* option) any later version.                                                   *
+*                                                                              *
+* This library is distributed in the hope that it will be useful, but WITHOUT  *
+* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or        *
+* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License  *
+* for more details.                                                            *
+*                                                                              *
+* You should have received a copy of the GNU Lesser General Public License     *
+* along with this library; if not, write to the Free Software Foundation,      *
+* Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.           *
+*                                                                              *
+* Web site: https://iggservis.u-strasbg.fr/CGoGN/                              *
+* Contact information: cgogn@unistra.fr                                        *
+*                                                                              *
+*******************************************************************************/
+
+#ifndef __AHEMIMPORTER_H__
+#define __AHEMIMPORTER_H__
+
+#include <fstream>
+#include "Algo/Import/AHEM.h"
+
+
+
+namespace CGoGN
+{
+
+namespace Algo
+{
+
+namespace Import 
+{
+
+
+/*
+ *	Actual loaders for attributes
+ */
+	
+template<typename MapType>
+class AttributeImporter
+{
+public:
+#ifdef _WIN32
+	virtual ~AttributeImporter() = 0			{}
+#else
+	virtual ~AttributeImporter()				{}
+#endif
+
+	virtual bool Handleable(const AHEMAttributeDescriptor* ad) const = 0;
+
+	virtual void ImportAttribute(	MapType& map,
+									const unsigned int* verticesId,
+									const Dart* facesId,
+									const AHEMHeader* hdr,
+									const char* attrName,
+									const AHEMAttributeDescriptor* ad,
+									const void* buffer) const = 0;
+};
+
+
+
+static const unsigned int ATTRIBUTE_NOTFOUND = (unsigned int)-1;
+
+/*
+ *	Importer
+ */
+
+template<typename PFP>
+class AHEMImporter
+{
+public:
+	AHEMImporter(bool useDefaultImporters = true);
+	~AHEMImporter();
+
+	bool Open(typename PFP::MAP* m, const char* filename);
+	void Close();
+	
+	void LoadMesh();
+	bool LoadAttribute(unsigned int attrIx, const char* attrName, const AttributeImporter<typename PFP::MAP>* imp);
+	bool LoadAttribute(const GUID& semantic, const char* attrName = NULL);
+	void LoadAllAttributes(bool* status = NULL);
+
+	// Low-level access to attributes
+
+	inline unsigned int GetAttributesNum();
+	inline void GetAttribute(AHEMAttributeDescriptor** ad, char** attrName, unsigned int ix);
+	inline unsigned int FindAttribute(const GUID& semantic);
+
+	// Attribute importers and helpers
+
+	std::vector<AttributeImporter<typename PFP::MAP>*> loadersRegistry;
+
+	inline std::vector<AttributeImporter<typename PFP::MAP>*> FindImporters(const GUID& attrSemanticId);
+	inline std::vector<AttributeImporter<typename PFP::MAP>*> FindImporters(const AHEMAttributeDescriptor* ad);
+
+protected:
+
+	void LoadTopology();
+	void LoadPosition(AHEMAttributeDescriptor* posDescr);
+
+
+	typename PFP::MAP* map;
+	std::ifstream f;
+
+	AHEMHeader hdr;
+
+	AHEMAttributeDescriptor* attrDesc;
+	char** attrNames;
+
+	char* buffer;
+	unsigned int bufferSize;
+
+	unsigned int* verticesId;
+	Dart* facesId;
+};
+
+
+
+
+} // namespace Import
+
+} // namespace Algo
+
+} // namespace CGoGN
+
+#include "Algo/Import/AHEMImporter.hpp"
+
+#endif

include/Algo/Import/AHEMImporter.hpp

+/*******************************************************************************
+* CGoGN: Combinatorial and Geometric modeling with Generic N-dimensional Maps  *
+* version 0.1                                                                  *
+* Copyright (C) 2009, IGG Team, LSIIT, University of Strasbourg                *
+*                                                                              *
+* This library is free software; you can redistribute it and/or modify it      *
+* under the terms of the GNU Lesser General Public License as published by the *
+* Free Software Foundation; either version 2.1 of the License, or (at your     *
+* option) any later version.                                                   *
+*                                                                              *
+* This library is distributed in the hope that it will be useful, but WITHOUT  *
+* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or        *
+* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License  *
+* for more details.                                                            *
+*                                                                              *
+* You should have received a copy of the GNU Lesser General Public License     *
+* along with this library; if not, write to the Free Software Foundation,      *
+* Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.           *
+*                                                                              *
+* Web site: https://iggservis.u-strasbg.fr/CGoGN/                              *
+* Contact information: cgogn@unistra.fr                                        *
+*                                                                              *
+*******************************************************************************/
+
+#include "Topology/generic/attributeHandler.h"
+
+#include "Geometry/matrix.h"
+
+#include "Algo/Import/AHEMImporterDefAttr.h"
+
+
+namespace CGoGN
+{
+
+namespace Algo
+{
+
+namespace Import
+{
+
+
+class HESorter
+{
+public:
+	unsigned int vxIdTo;
+	unsigned int vxIdFrom;
+
+	Dart d;
+
+	inline bool operator<(const HESorter& h) const
+	{
+		return (vxIdTo < h.vxIdTo) || (vxIdTo == h.vxIdTo && vxIdFrom < h.vxIdFrom);
+	}
+};
+
+
+
+#ifdef _WIN32
+int __cdecl OppositeSearch(const void* key, const void* datum)
+#else
+int OppositeSearch(const void* key, const void* datum)
+#endif
+{
+	HESorter* k = (HESorter*)key;
+	HESorter* d = (HESorter*)datum;
+
+	int z = (int)k->vxIdFrom - (int)d->vxIdTo;
+	return z != 0 ? z : ((int)k->vxIdTo - (int)d->vxIdFrom);
+}
+
+
+
+template<typename PFP>
+AHEMImporter<PFP>::AHEMImporter(bool useDefaultImporters)
+{
+	map = NULL;
+
+	attrDesc = NULL;
+	attrNames = NULL;
+
+	verticesId = NULL;
+	facesId = NULL;
+
+
+	// Default attribute loaders
+
+	if(useDefaultImporters)
+	{
+		loadersRegistry.push_back(new UniversalLoader<typename PFP::MAP, Vec3FloatLoader>);
+		loadersRegistry.push_back(new UniversalLoader<typename PFP::MAP, Mat44FloatLoader>);
+	}
+}
+
+
+template<typename PFP>
+AHEMImporter<PFP>::~AHEMImporter()
+{
+	if(f.is_open())
+		Close();
+
+
+	// Release all registered attribute loaders
+
+	for(unsigned int i = 0 ; i < loadersRegistry.size() ; i++)
+		delete loadersRegistry[i];
+}
+	
+	
+	
+template<typename PFP>
+bool AHEMImporter<PFP>::Open(typename PFP::MAP* m, const char* filename)
+{
+	// Halt if file is a file is already open
+
+	if(f.is_open() || map)
+		return false;
+
+
+	// Open file
+
+	f.open(filename, std::ios::binary);
+
+	if (!f.good())
+	{
+		CGoGNerr << "Unable to open file " << filename << CGoGNendl;
+		return false;
+	}
+
+
+	// Keep track of current map
+
+	map = m;
+
+
+	// Read header
+
+	f.read((char*)&hdr, sizeof(AHEMHeader));
+
+	if(hdr.magic != AHEM_MAGIC)
+		CGoGNerr << "Warning: " << filename << " invalid magic" << CGoGNendl;
+
+
+
+	// Read attributes
+
+	attrDesc = new AHEMAttributeDescriptor[hdr.attributesChunkNumber];
+	attrNames = new char*[hdr.attributesChunkNumber];
+
+	for(unsigned int i = 0 ; i < hdr.attributesChunkNumber ; i++)
+	{
+		f.read((char*)(attrDesc + i), sizeof(AHEMAttributeDescriptor));
+		
+		attrNames[i] = new char[attrDesc[i].nameSize + 1];
+		f.read(attrNames[i], attrDesc[i].nameSize);
+		attrNames[i][attrDesc[i].nameSize] = '\0';
+	}
+	
+
+	// Compute buffer size for largest chunk and allocate
+
+	bufferSize = hdr.meshHdr.meshChunkSize;
+
+	for(unsigned int i = 0 ; i < hdr.attributesChunkNumber ; i++)
+		if(attrDesc[i].attributeChunkSize > bufferSize)
+			bufferSize = attrDesc[i].attributeChunkSize;
+
+
+	buffer = new char[bufferSize];
+
+	return true;
+}
+
+
+template<typename PFP>
+void AHEMImporter<PFP>::Close()
+{
+	map = NULL;
+
+	f.close();
+
+	for(unsigned int i = 0 ; i < hdr.attributesChunkNumber ; i++)
+		delete[] attrNames[i];
+
+	delete[] attrNames;
+	attrNames = NULL;
+
+	delete[] attrDesc;
+	attrDesc = NULL;
+
+	delete[] buffer;
+	buffer = NULL;
+
+	delete[] verticesId;
+	verticesId = NULL;
+
+	delete[] facesId;
+	facesId = NULL;
+}
+
+
+template<typename PFP>
+void AHEMImporter<PFP>::LoadMesh()
+{
+	// Load mesh topological structure
+
+	LoadTopology();
+
+
+	// Load vertices position
+
+	for(unsigned int i = 0 ; i < hdr.attributesChunkNumber ; i++)
+		if(IsEqualGUID(attrDesc[i].semantic, AHEMATTRIBUTE_POSITION))
+		{
+			LoadPosition(attrDesc + i);
+			break;
+		}
+}
+
+
+template<typename PFP>
+void AHEMImporter<PFP>::LoadTopology()
+{
+    // Allocate vertices
+
+	AttributeContainer& vxContainer = map->getAttributeContainer(VERTEX_CELL);
+
+
+	verticesId = new unsigned int[hdr.meshHdr.vxCount];
+
+	for(unsigned int i = 0 ; i < hdr.meshHdr.vxCount ; i++)
+		verticesId[i] = vxContainer.insertLine();
+
+
+
+	// Ensure vertices are created by querying the position attribute
+
+	AttributeHandler<typename PFP::VEC3> position =  map->template getAttribute<typename PFP::VEC3>(VERTEX_ORBIT, "position") ;
+
+	if (!position.isValid())
+		position = map->template addAttribute<typename PFP::VEC3>(VERTEX_ORBIT, "position") ;
+
+
+
+	// Read faces stream and create faces [only intra-face links]
+	
+	HESorter* addedHE = new HESorter[hdr.meshHdr.heCount];
+
+	facesId = new Dart[hdr.meshHdr.faceCount];
+
+	f.read(buffer, hdr.meshHdr.meshChunkSize);
+	char* batch = buffer;
+
+	unsigned int fId = 0;
+	unsigned int heId = 0;
+
+	while(fId < hdr.meshHdr.faceCount)
+	{
+		AHEMFaceBatchDescriptor* fbd = (AHEMFaceBatchDescriptor*)batch;
+		stUInt32* ix = (stUInt32*)(batch + sizeof(AHEMFaceBatchDescriptor));
+
+		for(unsigned int i = 0 ; i < fbd->batchLength ; i++)
+		{
+			Dart d = map->newFace(fbd->batchFaceSize);							// create face
+			facesId[fId++] = d;
+
+			unsigned int firstVx = verticesId[*ix++];							// setup face's vertices up to last HE
+			unsigned int prevVx = firstVx;
+
+			for(unsigned int k = 0 ; k < fbd->batchFaceSize - 1 ; k++)
+			{
+				addedHE[heId].d = d;
+				addedHE[heId].vxIdFrom = prevVx;
+				addedHE[heId].vxIdTo = verticesId[*ix];
+
+				map->setDartEmbedding(VERTEX_ORBIT, d, prevVx);
+				d = map->phi1(d);
+
+				prevVx = *ix++;
+				heId++;
+			}
+
+
+			// last HE
+
+			addedHE[heId].d = d;
+			addedHE[heId].vxIdFrom = prevVx;
+			addedHE[heId].vxIdTo = firstVx;
+
+			map->setDartEmbedding(VERTEX_ORBIT, d, prevVx);
+			heId++;
+		}
+
+		batch = (char*)ix;
+	}
+	
+
+	// Sort the HE for fast retrieval
+
+	std::sort(addedHE, addedHE + hdr.meshHdr.heCount);
+
+
+	// Sew faces [inter-face links]
+
+	for(unsigned int i = 0 ; i < hdr.meshHdr.heCount ; i++)
+	{
+		HESorter* opposite = (HESorter*)bsearch(addedHE + i, addedHE, hdr.meshHdr.heCount, sizeof(HESorter), OppositeSearch);
+
+		if(opposite && opposite->d == map->phi2(opposite->d))
+			map->sewFaces(addedHE[i].d, opposite->d);
+	}
+}
+
+
+
+template <typename PFP>
+void AHEMImporter<PFP>::LoadPosition(AHEMAttributeDescriptor* posDescr)
+{
+	AttributeHandler<typename PFP::VEC3> position =  map->template getAttribute<typename PFP::VEC3>(VERTEX_ORBIT, "position") ;
+
+	if (!position.isValid())
+		position = map->template addAttribute<typename PFP::VEC3>(VERTEX_ORBIT, "position") ;
+
+
+	f.seekg(posDescr->fileStartOffset, std::ios_base::beg);
+	f.read(buffer, posDescr->attributeChunkSize);
+
+	float* q = (float*)buffer;
+
+	for(unsigned int i = 0 ; i < hdr.meshHdr.vxCount ; i++)
+	{
+		position[verticesId[i]] = typename PFP::VEC3(q[0], q[1], q[2]);
+		q += 3;
+	}
+}
+
+