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OgreMeshSerializerImpl.cpp @ 5

Last change on this file since 5 was 5, checked in by anonymous, 17 years ago
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File size: 97.2 KB

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1	/*
2	-----------------------------------------------------------------------------
3	This source file is part of OGRE
4	(Object-oriented Graphics Rendering Engine)
5	For the latest info, see http://www.ogre3d.org/
6
7	Copyright (c) 2000-2006 Torus Knot Software Ltd
8	Also see acknowledgements in Readme.html
9
10	This program is free software; you can redistribute it and/or modify it under
11	the terms of the GNU Lesser General Public License as published by the Free Software
12	Foundation; either version 2 of the License, or (at your option) any later
13	version.
14
15	This program is distributed in the hope that it will be useful, but WITHOUT
16	ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17	FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
18
19	You should have received a copy of the GNU Lesser General Public License along with
20	this program; if not, write to the Free Software Foundation, Inc., 59 Temple
21	Place - Suite 330, Boston, MA 02111-1307, USA, or go to
22	http://www.gnu.org/copyleft/lesser.txt.
23
24	You may alternatively use this source under the terms of a specific version of
25	the OGRE Unrestricted License provided you have obtained such a license from
26	Torus Knot Software Ltd.
27	-----------------------------------------------------------------------------
28	*/
29	#include "OgreStableHeaders.h"
30
31	#include "OgreMeshSerializerImpl.h"
32	#include "OgreMeshFileFormat.h"
33	#include "OgreMesh.h"
34	#include "OgreSubMesh.h"
35	#include "OgreException.h"
36	#include "OgreLogManager.h"
37	#include "OgreSkeleton.h"
38	#include "OgreHardwareBufferManager.h"
39	#include "OgreMaterial.h"
40	#include "OgreTechnique.h"
41	#include "OgrePass.h"
42	#include "OgreAnimation.h"
43	#include "OgreAnimationTrack.h"
44	#include "OgreKeyFrame.h"
45	#include "OgreRoot.h"
46
47	#if OGRE_COMPILER == OGRE_COMPILER_MSVC
48	// Disable conversion warnings, we do a lot of them, intentionally
49	# pragma warning (disable : 4267)
50	#endif
51
52
53	namespace Ogre {
54
55	/// stream overhead = ID + size
56	const long STREAM_OVERHEAD_SIZE = sizeof(uint16) + sizeof(uint32);
57	//---------------------------------------------------------------------
58	MeshSerializerImpl::MeshSerializerImpl()
59	{
60
61	// Version number
62	mVersion = "[MeshSerializer_v1.40]";
63	}
64	//---------------------------------------------------------------------
65	MeshSerializerImpl::~MeshSerializerImpl()
66	{
67	}
68	//---------------------------------------------------------------------
69	void MeshSerializerImpl::exportMesh(const Mesh* pMesh,
70	const String& filename, Endian endianMode)
71	{
72	LogManager::getSingleton().logMessage("MeshSerializer writing mesh data to " + filename + "...");
73
74	// Decide on endian mode
75	determineEndianness(endianMode);
76
77	// Check that the mesh has it's bounds set
78	if (pMesh->getBounds().isNull() \|\| pMesh->getBoundingSphereRadius() == 0.0f)
79	{
80	OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS, "The Mesh you have supplied does not have its"
81	" bounds completely defined. Define them first before exporting.",
82	"MeshSerializerImpl::exportMesh");
83	}
84	mpfFile = fopen(filename.c_str(), "wb");
85	if (!mpfFile)
86	{
87	OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
88	"Unable to open file " + filename + " for writing",
89	"MeshSerializerImpl::exportMesh");
90	}
91
92	writeFileHeader();
93	LogManager::getSingleton().logMessage("File header written.");
94
95
96	LogManager::getSingleton().logMessage("Writing mesh data...");
97	writeMesh(pMesh);
98	LogManager::getSingleton().logMessage("Mesh data exported.");
99
100	fclose(mpfFile);
101	LogManager::getSingleton().logMessage("MeshSerializer export successful.");
102	}
103	//---------------------------------------------------------------------
104	void MeshSerializerImpl::importMesh(DataStreamPtr& stream, Mesh* pMesh)
105	{
106	// Determine endianness (must be the first thing we do!)
107	determineEndianness(stream);
108
109	// Check header
110	readFileHeader(stream);
111
112	unsigned short streamID;
113	while(!stream->eof())
114	{
115	streamID = readChunk(stream);
116	switch (streamID)
117	{
118	case M_MESH:
119	readMesh(stream, pMesh);
120	break;
121	}
122
123	}
124	}
125	//---------------------------------------------------------------------
126	void MeshSerializerImpl::writeMesh(const Mesh* pMesh)
127	{
128	// Header
129	writeChunkHeader(M_MESH, calcMeshSize(pMesh));
130
131	// bool skeletallyAnimated
132	bool skelAnim = pMesh->hasSkeleton();
133	writeBools(&skelAnim, 1);
134
135	// Write shared geometry
136	if (pMesh->sharedVertexData)
137	writeGeometry(pMesh->sharedVertexData);
138
139	// Write Submeshes
140	for (int i = 0; i < pMesh->getNumSubMeshes(); ++i)
141	{
142	LogManager::getSingleton().logMessage("Writing submesh...");
143	writeSubMesh(pMesh->getSubMesh(i));
144	LogManager::getSingleton().logMessage("Submesh exported.");
145	}
146
147	// Write skeleton info if required
148	if (pMesh->hasSkeleton())
149	{
150	LogManager::getSingleton().logMessage("Exporting skeleton link...");
151	// Write skeleton link
152	writeSkeletonLink(pMesh->getSkeletonName());
153	LogManager::getSingleton().logMessage("Skeleton link exported.");
154
155	// Write bone assignments
156	if (!pMesh->mBoneAssignments.empty())
157	{
158	LogManager::getSingleton().logMessage("Exporting shared geometry bone assignments...");
159
160	Mesh::VertexBoneAssignmentList::const_iterator vi;
161	for (vi = pMesh->mBoneAssignments.begin();
162	vi != pMesh->mBoneAssignments.end(); ++vi)
163	{
164	writeMeshBoneAssignment(vi->second);
165	}
166
167	LogManager::getSingleton().logMessage("Shared geometry bone assignments exported.");
168	}
169	}
170
171	// Write LOD data if any
172	if (pMesh->getNumLodLevels() > 1)
173	{
174	LogManager::getSingleton().logMessage("Exporting LOD information....");
175	writeLodInfo(pMesh);
176	LogManager::getSingleton().logMessage("LOD information exported.");
177
178	}
179	// Write bounds information
180	LogManager::getSingleton().logMessage("Exporting bounds information....");
181	writeBoundsInfo(pMesh);
182	LogManager::getSingleton().logMessage("Bounds information exported.");
183
184	// Write submesh name table
185	LogManager::getSingleton().logMessage("Exporting submesh name table...");
186	writeSubMeshNameTable(pMesh);
187	LogManager::getSingleton().logMessage("Submesh name table exported.");
188
189	// Write edge lists
190	if (pMesh->isEdgeListBuilt())
191	{
192	LogManager::getSingleton().logMessage("Exporting edge lists...");
193	writeEdgeList(pMesh);
194	LogManager::getSingleton().logMessage("Edge lists exported");
195	}
196
197	// Write morph animation
198	writePoses(pMesh);
199	if (pMesh->hasVertexAnimation())
200	{
201	writeAnimations(pMesh);
202	}
203
204	// Write submesh extremes
205	writeExtremes(pMesh);
206	}
207	//---------------------------------------------------------------------
208	// Added by DrEvil
209	void MeshSerializerImpl::writeSubMeshNameTable(const Mesh* pMesh)
210	{
211	// Header
212	writeChunkHeader(M_SUBMESH_NAME_TABLE, calcSubMeshNameTableSize(pMesh));
213
214	// Loop through and save out the index and names.
215	Mesh::SubMeshNameMap::const_iterator it = pMesh->mSubMeshNameMap.begin();
216
217	while(it != pMesh->mSubMeshNameMap.end())
218	{
219	// Header
220	writeChunkHeader(M_SUBMESH_NAME_TABLE_ELEMENT, STREAM_OVERHEAD_SIZE +
221	sizeof(unsigned short) + (unsigned long)it->first.length() + 1);
222
223	// write the index
224	writeShorts(&it->second, 1);
225	// name
226	writeString(it->first);
227
228	++it;
229	}
230	}
231	//---------------------------------------------------------------------
232	void MeshSerializerImpl::writeSubMesh(const SubMesh* s)
233	{
234	// Header
235	writeChunkHeader(M_SUBMESH, calcSubMeshSize(s));
236
237	// char* materialName
238	writeString(s->getMaterialName());
239
240	// bool useSharedVertices
241	writeBools(&s->useSharedVertices, 1);
242
243	unsigned int indexCount = s->indexData->indexCount;
244	writeInts(&indexCount, 1);
245
246	// bool indexes32Bit
247	bool idx32bit = (s->indexData->indexBuffer->getType() == HardwareIndexBuffer::IT_32BIT);
248	writeBools(&idx32bit, 1);
249
250	// unsigned short* faceVertexIndices ((indexCount)
251	HardwareIndexBufferSharedPtr ibuf = s->indexData->indexBuffer;
252	void* pIdx = ibuf->lock(HardwareBuffer::HBL_READ_ONLY);
253	if (idx32bit)
254	{
255	unsigned int* pIdx32 = static_cast<unsigned int*>(pIdx);
256	writeInts(pIdx32, s->indexData->indexCount);
257	}
258	else
259	{
260	unsigned short* pIdx16 = static_cast<unsigned short*>(pIdx);
261	writeShorts(pIdx16, s->indexData->indexCount);
262	}
263	ibuf->unlock();
264
265	// M_GEOMETRY stream (Optional: present only if useSharedVertices = false)
266	if (!s->useSharedVertices)
267	{
268	writeGeometry(s->vertexData);
269	}
270
271	// end of sub mesh chunk
272
273	// write out texture alias chunks
274	writeSubMeshTextureAliases(s);
275
276	// Operation type
277	writeSubMeshOperation(s);
278
279	// Bone assignments
280	if (!s->mBoneAssignments.empty())
281	{
282	LogManager::getSingleton().logMessage("Exporting dedicated geometry bone assignments...");
283
284	SubMesh::VertexBoneAssignmentList::const_iterator vi;
285	for (vi = s->mBoneAssignments.begin();
286	vi != s->mBoneAssignments.end(); ++vi)
287	{
288	writeSubMeshBoneAssignment(vi->second);
289	}
290
291	LogManager::getSingleton().logMessage("Dedicated geometry bone assignments exported.");
292	}
293
294
295	}
296	//---------------------------------------------------------------------
297	void MeshSerializerImpl::writeExtremes(const Mesh *pMesh)
298	{
299	bool has_extremes = false;
300	for (int i = 0; i < pMesh->getNumSubMeshes(); ++i)
301	{
302	SubMesh *sm = pMesh->getSubMesh(i);
303	if (sm->extremityPoints.empty())
304	continue;
305	if (!has_extremes)
306	{
307	has_extremes = true;
308	LogManager::getSingleton().logMessage("Writing submesh extremes...");
309	}
310	writeSubMeshExtremes(i, sm);
311	}
312	if (has_extremes)
313	LogManager::getSingleton().logMessage("Extremes exported.");
314	}
315	//---------------------------------------------------------------------
316	void MeshSerializerImpl::writeSubMeshExtremes(unsigned short idx, const SubMesh* s)
317	{
318	size_t chunkSize = STREAM_OVERHEAD_SIZE + sizeof (unsigned short) +
319	s->extremityPoints.size () * sizeof (float) * 3;
320	writeChunkHeader(M_TABLE_EXTREMES, chunkSize);
321
322	writeShorts(&idx, 1);
323
324	float vertices = new float [s->extremityPoints.size() 3];
325	float *pVert = vertices;
326
327	for (std::vector<Vector3>::const_iterator i = s->extremityPoints.begin();
328	i != s->extremityPoints.end(); ++i)
329	{
330	*pVert++ = i->x;
331	*pVert++ = i->y;
332	*pVert++ = i->z;
333	}
334
335	writeFloats(vertices, s->extremityPoints.size () * 3);
336	delete [] vertices;
337	}
338	//---------------------------------------------------------------------
339	void MeshSerializerImpl::writeSubMeshTextureAliases(const SubMesh* s)
340	{
341	size_t chunkSize;
342	AliasTextureNamePairList::const_iterator i;
343
344	LogManager::getSingleton().logMessage("Exporting submesh texture aliases...");
345
346	// iterate through texture aliases and write them out as a chunk
347	for (i = s->mTextureAliases.begin(); i != s->mTextureAliases.end(); ++i)
348	{
349	// calculate chunk size based on string length + 1. Add 1 for the line feed.
350	chunkSize = STREAM_OVERHEAD_SIZE + i->first.length() + i->second.length() + 2;
351	writeChunkHeader(M_SUBMESH_TEXTURE_ALIAS, chunkSize);
352	// write out alias name
353	writeString(i->first);
354	// write out texture name
355	writeString(i->second);
356	}
357
358	LogManager::getSingleton().logMessage("Submesh texture aliases exported.");
359	}
360
361	//---------------------------------------------------------------------
362	void MeshSerializerImpl::writeSubMeshOperation(const SubMesh* sm)
363	{
364	// Header
365	writeChunkHeader(M_SUBMESH_OPERATION, calcSubMeshOperationSize(sm));
366
367	// unsigned short operationType
368	unsigned short opType = static_cast<unsigned short>(sm->operationType);
369	writeShorts(&opType, 1);
370	}
371	//---------------------------------------------------------------------
372	void MeshSerializerImpl::writeGeometry(const VertexData* vertexData)
373	{
374	// calc size
375	const VertexDeclaration::VertexElementList& elemList =
376	vertexData->vertexDeclaration->getElements();
377	const VertexBufferBinding::VertexBufferBindingMap& bindings =
378	vertexData->vertexBufferBinding->getBindings();
379	VertexBufferBinding::VertexBufferBindingMap::const_iterator vbi, vbiend;
380
381	size_t size = STREAM_OVERHEAD_SIZE + sizeof(unsigned int) + // base
382	(STREAM_OVERHEAD_SIZE + elemList.size() * (STREAM_OVERHEAD_SIZE + sizeof(unsigned short) * 5)); // elements
383	vbiend = bindings.end();
384	for (vbi = bindings.begin(); vbi != vbiend; ++vbi)
385	{
386	const HardwareVertexBufferSharedPtr& vbuf = vbi->second;
387	size += (STREAM_OVERHEAD_SIZE * 2) + (sizeof(unsigned short) * 2) + vbuf->getSizeInBytes();
388	}
389
390	// Header
391	writeChunkHeader(M_GEOMETRY, size);
392
393	unsigned int vertexCount = vertexData->vertexCount;
394	writeInts(&vertexCount, 1);
395
396	// Vertex declaration
397	size = STREAM_OVERHEAD_SIZE + elemList.size() * (STREAM_OVERHEAD_SIZE + sizeof(unsigned short) * 5);
398	writeChunkHeader(M_GEOMETRY_VERTEX_DECLARATION, size);
399
400	VertexDeclaration::VertexElementList::const_iterator vei, veiend;
401	veiend = elemList.end();
402	unsigned short tmp;
403	size = STREAM_OVERHEAD_SIZE + sizeof(unsigned short) * 5;
404	for (vei = elemList.begin(); vei != veiend; ++vei)
405	{
406	const VertexElement& elem = *vei;
407	writeChunkHeader(M_GEOMETRY_VERTEX_ELEMENT, size);
408	// unsigned short source; // buffer bind source
409	tmp = elem.getSource();
410	writeShorts(&tmp, 1);
411	// unsigned short type; // VertexElementType
412	tmp = static_cast<unsigned short>(elem.getType());
413	writeShorts(&tmp, 1);
414	// unsigned short semantic; // VertexElementSemantic
415	tmp = static_cast<unsigned short>(elem.getSemantic());
416	writeShorts(&tmp, 1);
417	// unsigned short offset; // start offset in buffer in bytes
418	tmp = static_cast<unsigned short>(elem.getOffset());
419	writeShorts(&tmp, 1);
420	// unsigned short index; // index of the semantic (for colours and texture coords)
421	tmp = elem.getIndex();
422	writeShorts(&tmp, 1);
423
424	}
425
426	// Buffers and bindings
427	vbiend = bindings.end();
428	for (vbi = bindings.begin(); vbi != vbiend; ++vbi)
429	{
430	const HardwareVertexBufferSharedPtr& vbuf = vbi->second;
431	size = (STREAM_OVERHEAD_SIZE * 2) + (sizeof(unsigned short) * 2) + vbuf->getSizeInBytes();
432	writeChunkHeader(M_GEOMETRY_VERTEX_BUFFER, size);
433	// unsigned short bindIndex; // Index to bind this buffer to
434	tmp = vbi->first;
435	writeShorts(&tmp, 1);
436	// unsigned short vertexSize; // Per-vertex size, must agree with declaration at this index
437	tmp = (unsigned short)vbuf->getVertexSize();
438	writeShorts(&tmp, 1);
439
440	// Data
441	size = STREAM_OVERHEAD_SIZE + vbuf->getSizeInBytes();
442	writeChunkHeader(M_GEOMETRY_VERTEX_BUFFER_DATA, size);
443	void* pBuf = vbuf->lock(HardwareBuffer::HBL_READ_ONLY);
444
445	if (mFlipEndian)
446	{
447	// endian conversion
448	// Copy data
449	unsigned char* tempData = new unsigned char[vbuf->getSizeInBytes()];
450	memcpy(tempData, pBuf, vbuf->getSizeInBytes());
451	flipToLittleEndian(
452	tempData,
453	vertexData->vertexCount,
454	vbuf->getVertexSize(),
455	vertexData->vertexDeclaration->findElementsBySource(vbi->first));
456	writeData(tempData, vbuf->getVertexSize(), vertexData->vertexCount);
457	delete [] tempData;
458	}
459	else
460	{
461	writeData(pBuf, vbuf->getVertexSize(), vertexData->vertexCount);
462	}
463	vbuf->unlock();
464	}
465
466
467	}
468	//---------------------------------------------------------------------
469	size_t MeshSerializerImpl::calcSubMeshNameTableSize(const Mesh* pMesh)
470	{
471	size_t size = STREAM_OVERHEAD_SIZE;
472	// Figure out the size of the Name table.
473	// Iterate through the subMeshList & add up the size of the indexes and names.
474	Mesh::SubMeshNameMap::const_iterator it = pMesh->mSubMeshNameMap.begin();
475	while(it != pMesh->mSubMeshNameMap.end())
476	{
477	// size of the index + header size for each element chunk
478	size += STREAM_OVERHEAD_SIZE + sizeof(uint16);
479	// name
480	size += it->first.length() + 1;
481
482	++it;
483	}
484
485	// size of the sub-mesh name table.
486	return size;
487	}
488	//---------------------------------------------------------------------
489	size_t MeshSerializerImpl::calcMeshSize(const Mesh* pMesh)
490	{
491	size_t size = STREAM_OVERHEAD_SIZE;
492
493	// Num shared vertices
494	size += sizeof(uint32);
495
496	// Geometry
497	if (pMesh->sharedVertexData && pMesh->sharedVertexData->vertexCount > 0)
498	{
499	size += calcGeometrySize(pMesh->sharedVertexData);
500	}
501
502	// Submeshes
503	for (unsigned short i = 0; i < pMesh->getNumSubMeshes(); ++i)
504	{
505	size += calcSubMeshSize(pMesh->getSubMesh(i));
506	}
507
508	// Skeleton link
509	if (pMesh->hasSkeleton())
510	{
511	size += calcSkeletonLinkSize(pMesh->getSkeletonName());
512	}
513
514	// Submesh name table
515	size += calcSubMeshNameTableSize(pMesh);
516
517	// Edge list
518	if (pMesh->isEdgeListBuilt())
519	{
520	size += calcEdgeListSize(pMesh);
521	}
522
523	// Animations
524	for (unsigned short a = 0; a < pMesh->getNumAnimations(); ++a)
525	{
526	Animation* anim = pMesh->getAnimation(a);
527	size += calcAnimationSize(anim);
528	}
529
530	return size;
531	}
532	//---------------------------------------------------------------------
533	size_t MeshSerializerImpl::calcSubMeshSize(const SubMesh* pSub)
534	{
535	size_t size = STREAM_OVERHEAD_SIZE;
536
537	// Material name
538	size += pSub->getMaterialName().length() + 1;
539
540	// bool useSharedVertices
541	size += sizeof(bool);
542	// unsigned int indexCount
543	size += sizeof(unsigned int);
544	// bool indexes32bit
545	size += sizeof(bool);
546	// unsigned int* faceVertexIndices
547	size += sizeof(unsigned int) * pSub->indexData->indexCount;
548
549	// Geometry
550	if (!pSub->useSharedVertices)
551	{
552	size += calcGeometrySize(pSub->vertexData);
553	}
554
555	size += calcSubMeshTextureAliasesSize(pSub);
556	size += calcSubMeshOperationSize(pSub);
557
558	// Bone assignments
559	if (!pSub->mBoneAssignments.empty())
560	{
561	SubMesh::VertexBoneAssignmentList::const_iterator vi;
562	for (vi = pSub->mBoneAssignments.begin();
563	vi != pSub->mBoneAssignments.end(); ++vi)
564	{
565	size += calcBoneAssignmentSize();
566	}
567	}
568
569	return size;
570	}
571	//---------------------------------------------------------------------
572	size_t MeshSerializerImpl::calcSubMeshOperationSize(const SubMesh* pSub)
573	{
574	return STREAM_OVERHEAD_SIZE + sizeof(uint16);
575	}
576	//---------------------------------------------------------------------
577	size_t MeshSerializerImpl::calcSubMeshTextureAliasesSize(const SubMesh* pSub)
578	{
579	size_t chunkSize = 0;
580	AliasTextureNamePairList::const_iterator i;
581
582	// iterate through texture alias map and calc size of strings
583	for (i = pSub->mTextureAliases.begin(); i != pSub->mTextureAliases.end(); ++i)
584	{
585	// calculate chunk size based on string length + 1. Add 1 for the line feed.
586	chunkSize += STREAM_OVERHEAD_SIZE + i->first.length() + i->second.length() + 2;
587	}
588
589	return chunkSize;
590	}
591	//---------------------------------------------------------------------
592	size_t MeshSerializerImpl::calcGeometrySize(const VertexData* vertexData)
593	{
594	size_t size = STREAM_OVERHEAD_SIZE;
595
596	// Num vertices
597	size += sizeof(unsigned int);
598
599	const VertexDeclaration::VertexElementList& elems =
600	vertexData->vertexDeclaration->getElements();
601
602	VertexDeclaration::VertexElementList::const_iterator i, iend;
603	iend = elems.end();
604	for (i = elems.begin(); i != iend; ++i)
605	{
606	const VertexElement& elem = *i;
607	// Vertex element
608	size += VertexElement::getTypeSize(elem.getType()) * vertexData->vertexCount;
609	}
610	return size;
611	}
612	//---------------------------------------------------------------------
613	void MeshSerializerImpl::readGeometry(DataStreamPtr& stream, Mesh* pMesh,
614	VertexData* dest)
615	{
616
617	dest->vertexStart = 0;
618
619	unsigned int vertexCount = 0;
620	readInts(stream, &vertexCount, 1);
621	dest->vertexCount = vertexCount;
622
623	// Find optional geometry streams
624	if (!stream->eof())
625	{
626	unsigned short streamID = readChunk(stream);
627	while(!stream->eof() &&
628	(streamID == M_GEOMETRY_VERTEX_DECLARATION \|\|
629	streamID == M_GEOMETRY_VERTEX_BUFFER ))
630	{
631	switch (streamID)
632	{
633	case M_GEOMETRY_VERTEX_DECLARATION:
634	readGeometryVertexDeclaration(stream, pMesh, dest);
635	break;
636	case M_GEOMETRY_VERTEX_BUFFER:
637	readGeometryVertexBuffer(stream, pMesh, dest);
638	break;
639	}
640	// Get next stream
641	if (!stream->eof())
642	{
643	streamID = readChunk(stream);
644	}
645	}
646	if (!stream->eof())
647	{
648	// Backpedal back to start of non-submesh stream
649	stream->skip(-STREAM_OVERHEAD_SIZE);
650	}
651	}
652
653	// Perform any necessary colour conversion for an active rendersystem
654	if (Root::getSingletonPtr() && Root::getSingleton().getRenderSystem())
655	{
656	// We don't know the source type if it's VET_COLOUR, but assume ARGB
657	// since that's the most common. Won't get used unless the mesh is
658	// ambiguous anyway, which will have been warned about in the log
659	dest->convertPackedColour(VET_COLOUR_ARGB,
660	VertexElement::getBestColourVertexElementType());
661	}
662	}
663	//---------------------------------------------------------------------
664	void MeshSerializerImpl::readGeometryVertexDeclaration(DataStreamPtr& stream,
665	Mesh* pMesh, VertexData* dest)
666	{
667	// Find optional geometry streams
668	if (!stream->eof())
669	{
670	unsigned short streamID = readChunk(stream);
671	while(!stream->eof() &&
672	(streamID == M_GEOMETRY_VERTEX_ELEMENT ))
673	{
674	switch (streamID)
675	{
676	case M_GEOMETRY_VERTEX_ELEMENT:
677	readGeometryVertexElement(stream, pMesh, dest);
678	break;
679	}
680	// Get next stream
681	if (!stream->eof())
682	{
683	streamID = readChunk(stream);
684	}
685	}
686	if (!stream->eof())
687	{
688	// Backpedal back to start of non-submesh stream
689	stream->skip(-STREAM_OVERHEAD_SIZE);
690	}
691	}
692
693	}
694	//---------------------------------------------------------------------
695	void MeshSerializerImpl::readGeometryVertexElement(DataStreamPtr& stream,
696	Mesh* pMesh, VertexData* dest)
697	{
698	unsigned short source, offset, index, tmp;
699	VertexElementType vType;
700	VertexElementSemantic vSemantic;
701	// unsigned short source; // buffer bind source
702	readShorts(stream, &source, 1);
703	// unsigned short type; // VertexElementType
704	readShorts(stream, &tmp, 1);
705	vType = static_cast<VertexElementType>(tmp);
706	// unsigned short semantic; // VertexElementSemantic
707	readShorts(stream, &tmp, 1);
708	vSemantic = static_cast<VertexElementSemantic>(tmp);
709	// unsigned short offset; // start offset in buffer in bytes
710	readShorts(stream, &offset, 1);
711	// unsigned short index; // index of the semantic
712	readShorts(stream, &index, 1);
713
714	dest->vertexDeclaration->addElement(source, offset, vType, vSemantic, index);
715
716	if (vType == VET_COLOUR)
717	{
718	StringUtil::StrStreamType s;
719	s << "Warning: VET_COLOUR element type is deprecated, you should use "
720	<< "one of the more specific types to indicate the byte order. "
721	<< "Use OgreMeshUpgrade on " << pMesh->getName() << " as soon as possible. ";
722	LogManager::getSingleton().logMessage(s.str());
723	}
724
725	}
726	//---------------------------------------------------------------------
727	void MeshSerializerImpl::readGeometryVertexBuffer(DataStreamPtr& stream,
728	Mesh* pMesh, VertexData* dest)
729	{
730	unsigned short bindIndex, vertexSize;
731	// unsigned short bindIndex; // Index to bind this buffer to
732	readShorts(stream, &bindIndex, 1);
733	// unsigned short vertexSize; // Per-vertex size, must agree with declaration at this index
734	readShorts(stream, &vertexSize, 1);
735
736	// Check for vertex data header
737	unsigned short headerID;
738	headerID = readChunk(stream);
739	if (headerID != M_GEOMETRY_VERTEX_BUFFER_DATA)
740	{
741	OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND, "Can't find vertex buffer data area",
742	"MeshSerializerImpl::readGeometryVertexBuffer");
743	}
744	// Check that vertex size agrees
745	if (dest->vertexDeclaration->getVertexSize(bindIndex) != vertexSize)
746	{
747	OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR, "Buffer vertex size does not agree with vertex declaration",
748	"MeshSerializerImpl::readGeometryVertexBuffer");
749	}
750
751	// Create / populate vertex buffer
752	HardwareVertexBufferSharedPtr vbuf;
753	vbuf = HardwareBufferManager::getSingleton().createVertexBuffer(
754	vertexSize,
755	dest->vertexCount,
756	pMesh->mVertexBufferUsage,
757	pMesh->mVertexBufferShadowBuffer);
758	void* pBuf = vbuf->lock(HardwareBuffer::HBL_DISCARD);
759	stream->read(pBuf, dest->vertexCount * vertexSize);
760
761	// endian conversion for OSX
762	flipFromLittleEndian(
763	pBuf,
764	dest->vertexCount,
765	vertexSize,
766	dest->vertexDeclaration->findElementsBySource(bindIndex));
767	vbuf->unlock();
768
769	// Set binding
770	dest->vertexBufferBinding->setBinding(bindIndex, vbuf);
771
772	}
773	//---------------------------------------------------------------------
774	void MeshSerializerImpl::readSubMeshNameTable(DataStreamPtr& stream, Mesh* pMesh)
775	{
776	// The map for
777	std::map<unsigned short, String> subMeshNames;
778	unsigned short streamID, subMeshIndex;
779
780	// Need something to store the index, and the objects name
781	// This table is a method that imported meshes can retain their naming
782	// so that the names established in the modelling software can be used
783	// to get the sub-meshes by name. The exporter must support exporting
784	// the optional stream M_SUBMESH_NAME_TABLE.
785
786	// Read in all the sub-streams. Each sub-stream should contain an index and Ogre::String for the name.
787	if (!stream->eof())
788	{
789	streamID = readChunk(stream);
790	while(!stream->eof() && (streamID == M_SUBMESH_NAME_TABLE_ELEMENT ))
791	{
792	// Read in the index of the submesh.
793	readShorts(stream, &subMeshIndex, 1);
794	// Read in the String and map it to its index.
795	subMeshNames[subMeshIndex] = readString(stream);
796
797	// If we're not end of file get the next stream ID
798	if (!stream->eof())
799	streamID = readChunk(stream);
800	}
801	if (!stream->eof())
802	{
803	// Backpedal back to start of stream
804	stream->skip(-STREAM_OVERHEAD_SIZE);
805	}
806	}
807
808	// Set all the submeshes names
809	// ?
810
811	// Loop through and save out the index and names.
812	std::map<unsigned short, String>::const_iterator it = subMeshNames.begin();
813
814	while(it != subMeshNames.end())
815	{
816	// Name this submesh to the stored name.
817	pMesh->nameSubMesh(it->second, it->first);
818	++it;
819	}
820
821
822
823	}
824	//---------------------------------------------------------------------
825	void MeshSerializerImpl::readMesh(DataStreamPtr& stream, Mesh* pMesh)
826	{
827	unsigned short streamID;
828
829	// Never automatically build edge lists for this version
830	// expect them in the file or not at all
831	pMesh->mAutoBuildEdgeLists = false;
832
833	// bool skeletallyAnimated
834	bool skeletallyAnimated;
835	readBools(stream, &skeletallyAnimated, 1);
836
837	// Find all substreams
838	if (!stream->eof())
839	{
840	streamID = readChunk(stream);
841	while(!stream->eof() &&
842	(streamID == M_GEOMETRY \|\|
843	streamID == M_SUBMESH \|\|
844	streamID == M_MESH_SKELETON_LINK \|\|
845	streamID == M_MESH_BONE_ASSIGNMENT \|\|
846	streamID == M_MESH_LOD \|\|
847	streamID == M_MESH_BOUNDS \|\|
848	streamID == M_SUBMESH_NAME_TABLE \|\|
849	streamID == M_EDGE_LISTS \|\|
850	streamID == M_POSES \|\|
851	streamID == M_ANIMATIONS \|\|
852	streamID == M_TABLE_EXTREMES))
853	{
854	switch(streamID)
855	{
856	case M_GEOMETRY:
857	pMesh->sharedVertexData = new VertexData();
858	try {
859	readGeometry(stream, pMesh, pMesh->sharedVertexData);
860	}
861	catch (Exception& e)
862	{
863	if (e.getNumber() == Exception::ERR_ITEM_NOT_FOUND)
864	{
865	// duff geometry data entry with 0 vertices
866	delete pMesh->sharedVertexData;
867	pMesh->sharedVertexData = 0;
868	// Skip this stream (pointer will have been returned to just after header)
869	stream->skip(mCurrentstreamLen - STREAM_OVERHEAD_SIZE);
870	}
871	else
872	{
873	throw;
874	}
875	}
876	break;
877	case M_SUBMESH:
878	readSubMesh(stream, pMesh);
879	break;
880	case M_MESH_SKELETON_LINK:
881	readSkeletonLink(stream, pMesh);
882	break;
883	case M_MESH_BONE_ASSIGNMENT:
884	readMeshBoneAssignment(stream, pMesh);
885	break;
886	case M_MESH_LOD:
887	readMeshLodInfo(stream, pMesh);
888	break;
889	case M_MESH_BOUNDS:
890	readBoundsInfo(stream, pMesh);
891	break;
892	case M_SUBMESH_NAME_TABLE:
893	readSubMeshNameTable(stream, pMesh);
894	break;
895	case M_EDGE_LISTS:
896	readEdgeList(stream, pMesh);
897	break;
898	case M_POSES:
899	readPoses(stream, pMesh);
900	break;
901	case M_ANIMATIONS:
902	readAnimations(stream, pMesh);
903	break;
904	case M_TABLE_EXTREMES:
905	readExtremes(stream, pMesh);
906	break;
907	}
908
909	if (!stream->eof())
910	{
911	streamID = readChunk(stream);
912	}
913
914	}
915	if (!stream->eof())
916	{
917	// Backpedal back to start of stream
918	stream->skip(-STREAM_OVERHEAD_SIZE);
919	}
920	}
921
922	}
923	//---------------------------------------------------------------------
924	void MeshSerializerImpl::readSubMesh(DataStreamPtr& stream, Mesh* pMesh)
925	{
926	unsigned short streamID;
927
928	SubMesh* sm = pMesh->createSubMesh();
929	// char* materialName
930	String materialName = readString(stream);
931	sm->setMaterialName(materialName);
932	// bool useSharedVertices
933	readBools(stream,&sm->useSharedVertices, 1);
934
935	sm->indexData->indexStart = 0;
936	unsigned int indexCount = 0;
937	readInts(stream, &indexCount, 1);
938	sm->indexData->indexCount = indexCount;
939
940	HardwareIndexBufferSharedPtr ibuf;
941	// bool indexes32Bit
942	bool idx32bit;
943	readBools(stream, &idx32bit, 1);
944	if (idx32bit)
945	{
946	ibuf = HardwareBufferManager::getSingleton().
947	createIndexBuffer(
948	HardwareIndexBuffer::IT_32BIT,
949	sm->indexData->indexCount,
950	pMesh->mIndexBufferUsage,
951	pMesh->mIndexBufferShadowBuffer);
952	// unsigned int* faceVertexIndices
953	unsigned int* pIdx = static_cast<unsigned int*>(
954	ibuf->lock(HardwareBuffer::HBL_DISCARD)
955	);
956	readInts(stream, pIdx, sm->indexData->indexCount);
957	ibuf->unlock();
958
959	}
960	else // 16-bit
961	{
962	ibuf = HardwareBufferManager::getSingleton().
963	createIndexBuffer(
964	HardwareIndexBuffer::IT_16BIT,
965	sm->indexData->indexCount,
966	pMesh->mIndexBufferUsage,
967	pMesh->mIndexBufferShadowBuffer);
968	// unsigned short* faceVertexIndices
969	unsigned short* pIdx = static_cast<unsigned short*>(
970	ibuf->lock(HardwareBuffer::HBL_DISCARD)
971	);
972	readShorts(stream, pIdx, sm->indexData->indexCount);
973	ibuf->unlock();
974	}
975	sm->indexData->indexBuffer = ibuf;
976
977	// M_GEOMETRY stream (Optional: present only if useSharedVertices = false)
978	if (!sm->useSharedVertices)
979	{
980	streamID = readChunk(stream);
981	if (streamID != M_GEOMETRY)
982	{
983	OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR, "Missing geometry data in mesh file",
984	"MeshSerializerImpl::readSubMesh");
985	}
986	sm->vertexData = new VertexData();
987	readGeometry(stream, pMesh, sm->vertexData);
988	}
989
990
991	// Find all bone assignments, submesh operation, and texture aliases (if present)
992	if (!stream->eof())
993	{
994	streamID = readChunk(stream);
995	while(!stream->eof() &&
996	(streamID == M_SUBMESH_BONE_ASSIGNMENT \|\|
997	streamID == M_SUBMESH_OPERATION \|\|
998	streamID == M_SUBMESH_TEXTURE_ALIAS))
999	{
1000	switch(streamID)
1001	{
1002	case M_SUBMESH_OPERATION:
1003	readSubMeshOperation(stream, pMesh, sm);
1004	break;
1005	case M_SUBMESH_BONE_ASSIGNMENT:
1006	readSubMeshBoneAssignment(stream, pMesh, sm);
1007	break;
1008	case M_SUBMESH_TEXTURE_ALIAS:
1009	readSubMeshTextureAlias(stream, pMesh, sm);
1010	break;
1011	}
1012
1013	if (!stream->eof())
1014	{
1015	streamID = readChunk(stream);
1016	}
1017
1018	}
1019	if (!stream->eof())
1020	{
1021	// Backpedal back to start of stream
1022	stream->skip(-STREAM_OVERHEAD_SIZE);
1023	}
1024	}
1025
1026
1027	}
1028	//---------------------------------------------------------------------
1029	void MeshSerializerImpl::readSubMeshOperation(DataStreamPtr& stream,
1030	Mesh* pMesh, SubMesh* sm)
1031	{
1032	// unsigned short operationType
1033	unsigned short opType;
1034	readShorts(stream, &opType, 1);
1035	sm->operationType = static_cast<RenderOperation::OperationType>(opType);
1036	}
1037	//---------------------------------------------------------------------
1038	void MeshSerializerImpl::readSubMeshTextureAlias(DataStreamPtr& stream, Mesh* pMesh, SubMesh* sub)
1039	{
1040	String aliasName = readString(stream);
1041	String textureName = readString(stream);
1042	sub->addTextureAlias(aliasName, textureName);
1043	}
1044	//---------------------------------------------------------------------
1045	void MeshSerializerImpl::writeSkeletonLink(const String& skelName)
1046	{
1047	writeChunkHeader(M_MESH_SKELETON_LINK, calcSkeletonLinkSize(skelName));
1048
1049	writeString(skelName);
1050
1051	}
1052	//---------------------------------------------------------------------
1053	void MeshSerializerImpl::readSkeletonLink(DataStreamPtr& stream, Mesh* pMesh)
1054	{
1055	String skelName = readString(stream);
1056	pMesh->setSkeletonName(skelName);
1057	}
1058	//---------------------------------------------------------------------
1059	void MeshSerializerImpl::readTextureLayer(DataStreamPtr& stream, Mesh* pMesh,
1060	MaterialPtr& pMat)
1061	{
1062	// Material definition section phased out of 1.1
1063	}
1064	//---------------------------------------------------------------------
1065	size_t MeshSerializerImpl::calcSkeletonLinkSize(const String& skelName)
1066	{
1067	size_t size = STREAM_OVERHEAD_SIZE;
1068
1069	size += skelName.length() + 1;
1070
1071	return size;
1072
1073	}
1074	//---------------------------------------------------------------------
1075	void MeshSerializerImpl::writeMeshBoneAssignment(const VertexBoneAssignment& assign)
1076	{
1077	writeChunkHeader(M_MESH_BONE_ASSIGNMENT, calcBoneAssignmentSize());
1078
1079	// unsigned int vertexIndex;
1080	writeInts(&(assign.vertexIndex), 1);
1081	// unsigned short boneIndex;
1082	writeShorts(&(assign.boneIndex), 1);
1083	// float weight;
1084	writeFloats(&(assign.weight), 1);
1085	}
1086	//---------------------------------------------------------------------
1087	void MeshSerializerImpl::writeSubMeshBoneAssignment(const VertexBoneAssignment& assign)
1088	{
1089	writeChunkHeader(M_SUBMESH_BONE_ASSIGNMENT, calcBoneAssignmentSize());
1090
1091	// unsigned int vertexIndex;
1092	writeInts(&(assign.vertexIndex), 1);
1093	// unsigned short boneIndex;
1094	writeShorts(&(assign.boneIndex), 1);
1095	// float weight;
1096	writeFloats(&(assign.weight), 1);
1097	}
1098	//---------------------------------------------------------------------
1099	void MeshSerializerImpl::readMeshBoneAssignment(DataStreamPtr& stream, Mesh* pMesh)
1100	{
1101	VertexBoneAssignment assign;
1102
1103	// unsigned int vertexIndex;
1104	readInts(stream, &(assign.vertexIndex),1);
1105	// unsigned short boneIndex;
1106	readShorts(stream, &(assign.boneIndex),1);
1107	// float weight;
1108	readFloats(stream, &(assign.weight), 1);
1109
1110	pMesh->addBoneAssignment(assign);
1111
1112	}
1113	//---------------------------------------------------------------------
1114	void MeshSerializerImpl::readSubMeshBoneAssignment(DataStreamPtr& stream,
1115	Mesh* pMesh, SubMesh* sub)
1116	{
1117	VertexBoneAssignment assign;
1118
1119	// unsigned int vertexIndex;
1120	readInts(stream, &(assign.vertexIndex),1);
1121	// unsigned short boneIndex;
1122	readShorts(stream, &(assign.boneIndex),1);
1123	// float weight;
1124	readFloats(stream, &(assign.weight), 1);
1125
1126	sub->addBoneAssignment(assign);
1127
1128	}
1129	//---------------------------------------------------------------------
1130	size_t MeshSerializerImpl::calcBoneAssignmentSize(void)
1131	{
1132	size_t size = STREAM_OVERHEAD_SIZE;
1133
1134	// Vert index
1135	size += sizeof(unsigned int);
1136	// Bone index
1137	size += sizeof(unsigned short);
1138	// weight
1139	size += sizeof(float);
1140
1141	return size;
1142	}
1143	//---------------------------------------------------------------------
1144	void MeshSerializerImpl::writeLodInfo(const Mesh* pMesh)
1145	{
1146	unsigned short numLods = pMesh->getNumLodLevels();
1147	bool manual = pMesh->isLodManual();
1148	writeLodSummary(numLods, manual);
1149
1150	// Loop from LOD 1 (not 0, this is full detail)
1151	for (unsigned short i = 1; i < numLods; ++i)
1152	{
1153	const MeshLodUsage& usage = pMesh->getLodLevel(i);
1154	if (manual)
1155	{
1156	writeLodUsageManual(usage);
1157	}
1158	else
1159	{
1160	writeLodUsageGenerated(pMesh, usage, i);
1161	}
1162
1163	}
1164
1165
1166	}
1167	//---------------------------------------------------------------------
1168	void MeshSerializerImpl::writeLodSummary(unsigned short numLevels, bool manual)
1169	{
1170	// Header
1171	size_t size = STREAM_OVERHEAD_SIZE;
1172	// unsigned short numLevels;
1173	size += sizeof(unsigned short);
1174	// bool manual; (true for manual alternate meshes, false for generated)
1175	size += sizeof(bool);
1176	writeChunkHeader(M_MESH_LOD, size);
1177
1178	// Details
1179	// unsigned short numLevels;
1180	writeShorts(&numLevels, 1);
1181	// bool manual; (true for manual alternate meshes, false for generated)
1182	writeBools(&manual, 1);
1183
1184
1185	}
1186	//---------------------------------------------------------------------
1187	void MeshSerializerImpl::writeLodUsageManual(const MeshLodUsage& usage)
1188	{
1189	// Header
1190	size_t size = STREAM_OVERHEAD_SIZE;
1191	size_t manualSize = STREAM_OVERHEAD_SIZE;
1192	// float fromDepthSquared;
1193	size += sizeof(float);
1194	// Manual part size
1195
1196	// String manualMeshName;
1197	manualSize += usage.manualName.length() + 1;
1198
1199	size += manualSize;
1200
1201	writeChunkHeader(M_MESH_LOD_USAGE, size);
1202	writeFloats(&(usage.fromDepthSquared), 1);
1203
1204	writeChunkHeader(M_MESH_LOD_MANUAL, manualSize);
1205	writeString(usage.manualName);
1206
1207
1208	}
1209	//---------------------------------------------------------------------
1210	void MeshSerializerImpl::writeLodUsageGenerated(const Mesh* pMesh, const MeshLodUsage& usage,
1211	unsigned short lodNum)
1212	{
1213	// Usage Header
1214	size_t size = STREAM_OVERHEAD_SIZE;
1215	unsigned short subidx;
1216
1217	// float fromDepthSquared;
1218	size += sizeof(float);
1219
1220	// Calc generated SubMesh sections size
1221	for(subidx = 0; subidx < pMesh->getNumSubMeshes(); ++subidx)
1222	{
1223	// header
1224	size += STREAM_OVERHEAD_SIZE;
1225	// unsigned int numFaces;
1226	size += sizeof(unsigned int);
1227	SubMesh* sm = pMesh->getSubMesh(subidx);
1228	const IndexData* indexData = sm->mLodFaceList[lodNum - 1];
1229
1230	// bool indexes32Bit
1231	size += sizeof(bool);
1232	// unsigned short/int faceIndexes;
1233	if (indexData->indexBuffer->getType() == HardwareIndexBuffer::IT_32BIT)
1234	{
1235	size += static_cast<unsigned long>(
1236	sizeof(unsigned int) * indexData->indexCount);
1237	}
1238	else
1239	{
1240	size += static_cast<unsigned long>(
1241	sizeof(unsigned short) * indexData->indexCount);
1242	}
1243
1244	}
1245
1246	writeChunkHeader(M_MESH_LOD_USAGE, size);
1247	writeFloats(&(usage.fromDepthSquared), 1);
1248
1249	// Now write sections
1250	// Calc generated SubMesh sections size
1251	for(subidx = 0; subidx < pMesh->getNumSubMeshes(); ++subidx)
1252	{
1253	size = STREAM_OVERHEAD_SIZE;
1254	// unsigned int numFaces;
1255	size += sizeof(unsigned int);
1256	SubMesh* sm = pMesh->getSubMesh(subidx);
1257	const IndexData* indexData = sm->mLodFaceList[lodNum - 1];
1258	// bool indexes32Bit
1259	size += sizeof(bool);
1260	// unsigned short/int faceIndexes;
1261	if (indexData->indexBuffer->getType() == HardwareIndexBuffer::IT_32BIT)
1262	{
1263	size += static_cast<unsigned long>(
1264	sizeof(unsigned int) * indexData->indexCount);
1265	}
1266	else
1267	{
1268	size += static_cast<unsigned long>(
1269	sizeof(unsigned short) * indexData->indexCount);
1270	}
1271
1272	writeChunkHeader(M_MESH_LOD_GENERATED, size);
1273	unsigned int idxCount = static_cast<unsigned int>(indexData->indexCount);
1274	writeInts(&idxCount, 1);
1275	// Lock index buffer to write
1276	HardwareIndexBufferSharedPtr ibuf = indexData->indexBuffer;
1277	// bool indexes32bit
1278	bool idx32 = (ibuf->getType() == HardwareIndexBuffer::IT_32BIT);
1279	writeBools(&idx32, 1);
1280	if (idx32)
1281	{
1282	unsigned int* pIdx = static_cast<unsigned int*>(
1283	ibuf->lock(HardwareBuffer::HBL_READ_ONLY));
1284	writeInts(pIdx, indexData->indexCount);
1285	ibuf->unlock();
1286	}
1287	else
1288	{
1289	unsigned short* pIdx = static_cast<unsigned short*>(
1290	ibuf->lock(HardwareBuffer::HBL_READ_ONLY));
1291	writeShorts(pIdx, indexData->indexCount);
1292	ibuf->unlock();
1293	}
1294	}
1295
1296
1297	}
1298	//---------------------------------------------------------------------
1299	void MeshSerializerImpl::writeBoundsInfo(const Mesh* pMesh)
1300	{
1301	// Usage Header
1302	unsigned long size = STREAM_OVERHEAD_SIZE;
1303
1304	size += sizeof(float) * 7;
1305	writeChunkHeader(M_MESH_BOUNDS, size);
1306
1307	// float minx, miny, minz
1308	const Vector3& min = pMesh->mAABB.getMinimum();
1309	const Vector3& max = pMesh->mAABB.getMaximum();
1310	writeFloats(&min.x, 1);
1311	writeFloats(&min.y, 1);
1312	writeFloats(&min.z, 1);
1313	// float maxx, maxy, maxz
1314	writeFloats(&max.x, 1);
1315	writeFloats(&max.y, 1);
1316	writeFloats(&max.z, 1);
1317	// float radius
1318	writeFloats(&pMesh->mBoundRadius, 1);
1319
1320	}
1321	//---------------------------------------------------------------------
1322	void MeshSerializerImpl::readBoundsInfo(DataStreamPtr& stream, Mesh* pMesh)
1323	{
1324	Vector3 min, max;
1325	// float minx, miny, minz
1326	readFloats(stream, &min.x, 1);
1327	readFloats(stream, &min.y, 1);
1328	readFloats(stream, &min.z, 1);
1329	// float maxx, maxy, maxz
1330	readFloats(stream, &max.x, 1);
1331	readFloats(stream, &max.y, 1);
1332	readFloats(stream, &max.z, 1);
1333	AxisAlignedBox box(min, max);
1334	pMesh->_setBounds(box, true);
1335	// float radius
1336	float radius;
1337	readFloats(stream, &radius, 1);
1338	pMesh->_setBoundingSphereRadius(radius);
1339
1340
1341
1342	}
1343	//---------------------------------------------------------------------
1344	void MeshSerializerImpl::readMeshLodInfo(DataStreamPtr& stream, Mesh* pMesh)
1345	{
1346	unsigned short streamID, i;
1347
1348	// unsigned short numLevels;
1349	readShorts(stream, &(pMesh->mNumLods), 1);
1350	// bool manual; (true for manual alternate meshes, false for generated)
1351	readBools(stream, &(pMesh->mIsLodManual), 1);
1352
1353	// Preallocate submesh lod face data if not manual
1354	if (!pMesh->mIsLodManual)
1355	{
1356	unsigned short numsubs = pMesh->getNumSubMeshes();
1357	for (i = 0; i < numsubs; ++i)
1358	{
1359	SubMesh* sm = pMesh->getSubMesh(i);
1360	sm->mLodFaceList.resize(pMesh->mNumLods-1);
1361	}
1362	}
1363
1364	// Loop from 1 rather than 0 (full detail index is not in file)
1365	for (i = 1; i < pMesh->mNumLods; ++i)
1366	{
1367	streamID = readChunk(stream);
1368	if (streamID != M_MESH_LOD_USAGE)
1369	{
1370	OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND,
1371	"Missing M_MESH_LOD_USAGE stream in " + pMesh->getName(),
1372	"MeshSerializerImpl::readMeshLodInfo");
1373	}
1374	// Read depth
1375	MeshLodUsage usage;
1376	readFloats(stream, &(usage.fromDepthSquared), 1);
1377
1378	if (pMesh->isLodManual())
1379	{
1380	readMeshLodUsageManual(stream, pMesh, i, usage);
1381	}
1382	else //(!pMesh->isLodManual)
1383	{
1384	readMeshLodUsageGenerated(stream, pMesh, i, usage);
1385	}
1386	usage.edgeData = NULL;
1387
1388	// Save usage
1389	pMesh->mMeshLodUsageList.push_back(usage);
1390	}
1391
1392
1393	}
1394	//---------------------------------------------------------------------
1395	void MeshSerializerImpl::readMeshLodUsageManual(DataStreamPtr& stream,
1396	Mesh* pMesh, unsigned short lodNum, MeshLodUsage& usage)
1397	{
1398	unsigned long streamID;
1399	// Read detail stream
1400	streamID = readChunk(stream);
1401	if (streamID != M_MESH_LOD_MANUAL)
1402	{
1403	OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND,
1404	"Missing M_MESH_LOD_MANUAL stream in " + pMesh->getName(),
1405	"MeshSerializerImpl::readMeshLodUsageManual");
1406	}
1407
1408	usage.manualName = readString(stream);
1409	usage.manualMesh.setNull(); // will trigger load later
1410	}
1411	//---------------------------------------------------------------------
1412	void MeshSerializerImpl::readMeshLodUsageGenerated(DataStreamPtr& stream,
1413	Mesh* pMesh, unsigned short lodNum, MeshLodUsage& usage)
1414	{
1415	usage.manualName = "";
1416	usage.manualMesh.setNull();
1417
1418	// Get one set of detail per SubMesh
1419	unsigned short numSubs, i;
1420	unsigned long streamID;
1421	numSubs = pMesh->getNumSubMeshes();
1422	for (i = 0; i < numSubs; ++i)
1423	{
1424	streamID = readChunk(stream);
1425	if (streamID != M_MESH_LOD_GENERATED)
1426	{
1427	OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND,
1428	"Missing M_MESH_LOD_GENERATED stream in " + pMesh->getName(),
1429	"MeshSerializerImpl::readMeshLodUsageGenerated");
1430	}
1431
1432	SubMesh* sm = pMesh->getSubMesh(i);
1433	// lodNum - 1 because SubMesh doesn't store full detail LOD
1434	sm->mLodFaceList[lodNum - 1] = new IndexData();
1435	IndexData* indexData = sm->mLodFaceList[lodNum - 1];
1436	// unsigned int numIndexes
1437	unsigned int numIndexes;
1438	readInts(stream, &numIndexes, 1);
1439	indexData->indexCount = static_cast<size_t>(numIndexes);
1440	// bool indexes32Bit
1441	bool idx32Bit;
1442	readBools(stream, &idx32Bit, 1);
1443	// unsigned short/int faceIndexes; ((v1, v2, v3) * numFaces)
1444	if (idx32Bit)
1445	{
1446	indexData->indexBuffer = HardwareBufferManager::getSingleton().
1447	createIndexBuffer(HardwareIndexBuffer::IT_32BIT, indexData->indexCount,
1448	pMesh->mIndexBufferUsage, pMesh->mIndexBufferShadowBuffer);
1449	unsigned int* pIdx = static_cast<unsigned int*>(
1450	indexData->indexBuffer->lock(
1451	0,
1452	indexData->indexBuffer->getSizeInBytes(),
1453	HardwareBuffer::HBL_DISCARD) );
1454
1455	readInts(stream, pIdx, indexData->indexCount);
1456	indexData->indexBuffer->unlock();
1457
1458	}
1459	else
1460	{
1461	indexData->indexBuffer = HardwareBufferManager::getSingleton().
1462	createIndexBuffer(HardwareIndexBuffer::IT_16BIT, indexData->indexCount,
1463	pMesh->mIndexBufferUsage, pMesh->mIndexBufferShadowBuffer);
1464	unsigned short* pIdx = static_cast<unsigned short*>(
1465	indexData->indexBuffer->lock(
1466	0,
1467	indexData->indexBuffer->getSizeInBytes(),
1468	HardwareBuffer::HBL_DISCARD) );
1469	readShorts(stream, pIdx, indexData->indexCount);
1470	indexData->indexBuffer->unlock();
1471
1472	}
1473
1474	}
1475	}
1476	//---------------------------------------------------------------------
1477	void MeshSerializerImpl::flipFromLittleEndian(void* pData, size_t vertexCount,
1478	size_t vertexSize, const VertexDeclaration::VertexElementList& elems)
1479	{
1480	if (mFlipEndian)
1481	{
1482	flipEndian(pData, vertexCount, vertexSize, elems);
1483	}
1484	}
1485	//---------------------------------------------------------------------
1486	void MeshSerializerImpl::flipToLittleEndian(void* pData, size_t vertexCount,
1487	size_t vertexSize, const VertexDeclaration::VertexElementList& elems)
1488	{
1489	if (mFlipEndian)
1490	{
1491	flipEndian(pData, vertexCount, vertexSize, elems);
1492	}
1493	}
1494	//---------------------------------------------------------------------
1495	void MeshSerializerImpl::flipEndian(void* pData, size_t vertexCount,
1496	size_t vertexSize, const VertexDeclaration::VertexElementList& elems)
1497	{
1498	void *pBase = pData;
1499	for (size_t v = 0; v < vertexCount; ++v)
1500	{
1501	VertexDeclaration::VertexElementList::const_iterator ei, eiend;
1502	eiend = elems.end();
1503	for (ei = elems.begin(); ei != eiend; ++ei)
1504	{
1505	void *pElem;
1506	// re-base pointer to the element
1507	(*ei).baseVertexPointerToElement(pBase, &pElem);
1508	// Flip the endian based on the type
1509	size_t typeSize = 0;
1510	switch (VertexElement::getBaseType((*ei).getType()))
1511	{
1512	case VET_FLOAT1:
1513	typeSize = sizeof(float);
1514	break;
1515	case VET_SHORT1:
1516	typeSize = sizeof(short);
1517	break;
1518	case VET_COLOUR:
1519	case VET_COLOUR_ABGR:
1520	case VET_COLOUR_ARGB:
1521	typeSize = sizeof(RGBA);
1522	break;
1523	case VET_UBYTE4:
1524	typeSize = 0; // NO FLIPPING
1525	break;
1526	default:
1527	assert(false); // Should never happen
1528	};
1529	Serializer::flipEndian(pElem, typeSize,
1530	VertexElement::getTypeCount((*ei).getType()));
1531
1532	}
1533
1534	pBase = static_cast<void*>(
1535	static_cast<unsigned char*>(pBase) + vertexSize);
1536
1537	}
1538	}
1539	//---------------------------------------------------------------------
1540	size_t MeshSerializerImpl::calcEdgeListSize(const Mesh* pMesh)
1541	{
1542	size_t size = STREAM_OVERHEAD_SIZE;
1543
1544	for (ushort i = 0; i < pMesh->getNumLodLevels(); ++i)
1545	{
1546
1547	const EdgeData* edgeData = pMesh->getEdgeList(i);
1548	bool isManual = pMesh->isLodManual() && (i > 0);
1549
1550	size += calcEdgeListLodSize(edgeData, isManual);
1551
1552	}
1553
1554	return size;
1555	}
1556	//---------------------------------------------------------------------
1557	size_t MeshSerializerImpl::calcEdgeListLodSize(const EdgeData* edgeData, bool isManual)
1558	{
1559	size_t size = STREAM_OVERHEAD_SIZE;
1560
1561	// unsigned short lodIndex
1562	size += sizeof(uint16);
1563
1564	// bool isManual // If manual, no edge data here, loaded from manual mesh
1565	size += sizeof(bool);
1566	if (!isManual)
1567	{
1568	// bool isClosed
1569	size += sizeof(bool);
1570	// unsigned long numTriangles
1571	size += sizeof(uint32);
1572	// unsigned long numEdgeGroups
1573	size += sizeof(uint32);
1574	// Triangle* triangleList
1575	size_t triSize = 0;
1576	// unsigned long indexSet
1577	// unsigned long vertexSet
1578	// unsigned long vertIndex[3]
1579	// unsigned long sharedVertIndex[3]
1580	// float normal[4]
1581	triSize += sizeof(uint32) * 8
1582	+ sizeof(float) * 4;
1583
1584	size += triSize * edgeData->triangles.size();
1585	// Write the groups
1586	for (EdgeData::EdgeGroupList::const_iterator gi = edgeData->edgeGroups.begin();
1587	gi != edgeData->edgeGroups.end(); ++gi)
1588	{
1589	const EdgeData::EdgeGroup& edgeGroup = *gi;
1590	size += calcEdgeGroupSize(edgeGroup);
1591	}
1592
1593	}
1594
1595	return size;
1596	}
1597	//---------------------------------------------------------------------
1598	size_t MeshSerializerImpl::calcEdgeGroupSize(const EdgeData::EdgeGroup& group)
1599	{
1600	size_t size = STREAM_OVERHEAD_SIZE;
1601
1602	// unsigned long vertexSet
1603	size += sizeof(uint32);
1604	// unsigned long triStart
1605	size += sizeof(uint32);
1606	// unsigned long triCount
1607	size += sizeof(uint32);
1608	// unsigned long numEdges
1609	size += sizeof(uint32);
1610	// Edge* edgeList
1611	size_t edgeSize = 0;
1612	// unsigned long triIndex[2]
1613	// unsigned long vertIndex[2]
1614	// unsigned long sharedVertIndex[2]
1615	// bool degenerate
1616	edgeSize += sizeof(uint32) * 6 + sizeof(bool);
1617	size += edgeSize * group.edges.size();
1618
1619	return size;
1620	}
1621	//---------------------------------------------------------------------
1622	void MeshSerializerImpl::writeEdgeList(const Mesh* pMesh)
1623	{
1624	writeChunkHeader(M_EDGE_LISTS, calcEdgeListSize(pMesh));
1625
1626	for (ushort i = 0; i < pMesh->getNumLodLevels(); ++i)
1627	{
1628	const EdgeData* edgeData = pMesh->getEdgeList(i);
1629	bool isManual = pMesh->isLodManual() && (i > 0);
1630	writeChunkHeader(M_EDGE_LIST_LOD, calcEdgeListLodSize(edgeData, isManual));
1631
1632	// unsigned short lodIndex
1633	writeShorts(&i, 1);
1634
1635	// bool isManual // If manual, no edge data here, loaded from manual mesh
1636	writeBools(&isManual, 1);
1637	if (!isManual)
1638	{
1639	// bool isClosed
1640	writeBools(&edgeData->isClosed, 1);
1641	// unsigned long numTriangles
1642	uint32 count = static_cast<uint32>(edgeData->triangles.size());
1643	writeInts(&count, 1);
1644	// unsigned long numEdgeGroups
1645	count = static_cast<uint32>(edgeData->edgeGroups.size());
1646	writeInts(&count, 1);
1647	// Triangle* triangleList
1648	// Iterate rather than writing en-masse to allow endian conversion
1649	EdgeData::TriangleList::const_iterator t = edgeData->triangles.begin();
1650	EdgeData::TriangleFaceNormalList::const_iterator fni = edgeData->triangleFaceNormals.begin();
1651	for ( ; t != edgeData->triangles.end(); ++t, ++fni)
1652	{
1653	const EdgeData::Triangle& tri = *t;
1654	// unsigned long indexSet;
1655	uint32 tmp[3];
1656	tmp[0] = tri.indexSet;
1657	writeInts(tmp, 1);
1658	// unsigned long vertexSet;
1659	tmp[0] = tri.vertexSet;
1660	writeInts(tmp, 1);
1661	// unsigned long vertIndex[3];
1662	tmp[0] = tri.vertIndex[0];
1663	tmp[1] = tri.vertIndex[1];
1664	tmp[2] = tri.vertIndex[2];
1665	writeInts(tmp, 3);
1666	// unsigned long sharedVertIndex[3];
1667	tmp[0] = tri.sharedVertIndex[0];
1668	tmp[1] = tri.sharedVertIndex[1];
1669	tmp[2] = tri.sharedVertIndex[2];
1670	writeInts(tmp, 3);
1671	// float normal[4];
1672	writeFloats(&(fni->x), 4);
1673
1674	}
1675	// Write the groups
1676	for (EdgeData::EdgeGroupList::const_iterator gi = edgeData->edgeGroups.begin();
1677	gi != edgeData->edgeGroups.end(); ++gi)
1678	{
1679	const EdgeData::EdgeGroup& edgeGroup = *gi;
1680	writeChunkHeader(M_EDGE_GROUP, calcEdgeGroupSize(edgeGroup));
1681	// unsigned long vertexSet
1682	uint32 vertexSet = static_cast<uint32>(edgeGroup.vertexSet);
1683	writeInts(&vertexSet, 1);
1684	// unsigned long triStart
1685	uint32 triStart = static_cast<uint32>(edgeGroup.triStart);
1686	writeInts(&triStart, 1);
1687	// unsigned long triCount
1688	uint32 triCount = static_cast<uint32>(edgeGroup.triCount);
1689	writeInts(&triCount, 1);
1690	// unsigned long numEdges
1691	count = static_cast<uint32>(edgeGroup.edges.size());
1692	writeInts(&count, 1);
1693	// Edge* edgeList
1694	// Iterate rather than writing en-masse to allow endian conversion
1695	for (EdgeData::EdgeList::const_iterator ei = edgeGroup.edges.begin();
1696	ei != edgeGroup.edges.end(); ++ei)
1697	{
1698	const EdgeData::Edge& edge = *ei;
1699	uint32 tmp[2];
1700	// unsigned long triIndex[2]
1701	tmp[0] = edge.triIndex[0];
1702	tmp[1] = edge.triIndex[1];
1703	writeInts(tmp, 2);
1704	// unsigned long vertIndex[2]
1705	tmp[0] = edge.vertIndex[0];
1706	tmp[1] = edge.vertIndex[1];
1707	writeInts(tmp, 2);
1708	// unsigned long sharedVertIndex[2]
1709	tmp[0] = edge.sharedVertIndex[0];
1710	tmp[1] = edge.sharedVertIndex[1];
1711	writeInts(tmp, 2);
1712	// bool degenerate
1713	writeBools(&(edge.degenerate), 1);
1714	}
1715
1716	}
1717
1718	}
1719
1720	}
1721	}
1722	//---------------------------------------------------------------------
1723	void MeshSerializerImpl::readEdgeList(DataStreamPtr& stream, Mesh* pMesh)
1724	{
1725	unsigned short streamID;
1726
1727	if (!stream->eof())
1728	{
1729	streamID = readChunk(stream);
1730	while(!stream->eof() &&
1731	streamID == M_EDGE_LIST_LOD)
1732	{
1733	// Process single LOD
1734
1735	// unsigned short lodIndex
1736	unsigned short lodIndex;
1737	readShorts(stream, &lodIndex, 1);
1738
1739	// bool isManual // If manual, no edge data here, loaded from manual mesh
1740	bool isManual;
1741	readBools(stream, &isManual, 1);
1742	// Only load in non-manual levels; others will be connected up by Mesh on demand
1743	if (!isManual)
1744	{
1745	MeshLodUsage& usage = const_cast<MeshLodUsage&>(pMesh->getLodLevel(lodIndex));
1746
1747	usage.edgeData = new EdgeData();
1748
1749	// Read detail information of the edge list
1750	readEdgeListLodInfo(stream, usage.edgeData);
1751
1752	// Postprocessing edge groups
1753	EdgeData::EdgeGroupList::iterator egi, egend;
1754	egend = usage.edgeData->edgeGroups.end();
1755	for (egi = usage.edgeData->edgeGroups.begin(); egi != egend; ++egi)
1756	{
1757	EdgeData::EdgeGroup& edgeGroup = *egi;
1758	// Populate edgeGroup.vertexData pointers
1759	// If there is shared vertex data, vertexSet 0 is that,
1760	// otherwise 0 is first dedicated
1761	if (pMesh->sharedVertexData)
1762	{
1763	if (edgeGroup.vertexSet == 0)
1764	{
1765	edgeGroup.vertexData = pMesh->sharedVertexData;
1766	}
1767	else
1768	{
1769	edgeGroup.vertexData = pMesh->getSubMesh(
1770	edgeGroup.vertexSet-1)->vertexData;
1771	}
1772	}
1773	else
1774	{
1775	edgeGroup.vertexData = pMesh->getSubMesh(
1776	edgeGroup.vertexSet)->vertexData;
1777	}
1778	}
1779	}
1780
1781	if (!stream->eof())
1782	{
1783	streamID = readChunk(stream);
1784	}
1785
1786	}
1787	if (!stream->eof())
1788	{
1789	// Backpedal back to start of stream
1790	stream->skip(-STREAM_OVERHEAD_SIZE);
1791	}
1792	}
1793
1794	pMesh->mEdgeListsBuilt = true;
1795	}
1796	//---------------------------------------------------------------------
1797	void MeshSerializerImpl::readEdgeListLodInfo(DataStreamPtr& stream,
1798	EdgeData* edgeData)
1799	{
1800	// bool isClosed
1801	readBools(stream, &edgeData->isClosed, 1);
1802	// unsigned long numTriangles
1803	uint32 numTriangles;
1804	readInts(stream, &numTriangles, 1);
1805	// Allocate correct amount of memory
1806	edgeData->triangles.resize(numTriangles);
1807	edgeData->triangleFaceNormals.resize(numTriangles);
1808	edgeData->triangleLightFacings.resize(numTriangles);
1809	// unsigned long numEdgeGroups
1810	uint32 numEdgeGroups;
1811	readInts(stream, &numEdgeGroups, 1);
1812	// Allocate correct amount of memory
1813	edgeData->edgeGroups.resize(numEdgeGroups);
1814	// Triangle* triangleList
1815	uint32 tmp[3];
1816	for (size_t t = 0; t < numTriangles; ++t)
1817	{
1818	EdgeData::Triangle& tri = edgeData->triangles[t];
1819	// unsigned long indexSet
1820	readInts(stream, tmp, 1);
1821	tri.indexSet = tmp[0];
1822	// unsigned long vertexSet
1823	readInts(stream, tmp, 1);
1824	tri.vertexSet = tmp[0];
1825	// unsigned long vertIndex[3]
1826	readInts(stream, tmp, 3);
1827	tri.vertIndex[0] = tmp[0];
1828	tri.vertIndex[1] = tmp[1];
1829	tri.vertIndex[2] = tmp[2];
1830	// unsigned long sharedVertIndex[3]
1831	readInts(stream, tmp, 3);
1832	tri.sharedVertIndex[0] = tmp[0];
1833	tri.sharedVertIndex[1] = tmp[1];
1834	tri.sharedVertIndex[2] = tmp[2];
1835	// float normal[4]
1836	readFloats(stream, &(edgeData->triangleFaceNormals[t].x), 4);
1837
1838	}
1839
1840	for (uint32 eg = 0; eg < numEdgeGroups; ++eg)
1841	{
1842	unsigned short streamID = readChunk(stream);
1843	if (streamID != M_EDGE_GROUP)
1844	{
1845	OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR,
1846	"Missing M_EDGE_GROUP stream",
1847	"MeshSerializerImpl::readEdgeListLodInfo");
1848	}
1849	EdgeData::EdgeGroup& edgeGroup = edgeData->edgeGroups[eg];
1850
1851	// unsigned long vertexSet
1852	readInts(stream, tmp, 1);
1853	edgeGroup.vertexSet = tmp[0];
1854	// unsigned long triStart
1855	readInts(stream, tmp, 1);
1856	edgeGroup.triStart = tmp[0];
1857	// unsigned long triCount
1858	readInts(stream, tmp, 1);
1859	edgeGroup.triCount = tmp[0];
1860	// unsigned long numEdges
1861	uint32 numEdges;
1862	readInts(stream, &numEdges, 1);
1863	edgeGroup.edges.resize(numEdges);
1864	// Edge* edgeList
1865	for (uint32 e = 0; e < numEdges; ++e)
1866	{
1867	EdgeData::Edge& edge = edgeGroup.edges[e];
1868	// unsigned long triIndex[2]
1869	readInts(stream, tmp, 2);
1870	edge.triIndex[0] = tmp[0];
1871	edge.triIndex[1] = tmp[1];
1872	// unsigned long vertIndex[2]
1873	readInts(stream, tmp, 2);
1874	edge.vertIndex[0] = tmp[0];
1875	edge.vertIndex[1] = tmp[1];
1876	// unsigned long sharedVertIndex[2]
1877	readInts(stream, tmp, 2);
1878	edge.sharedVertIndex[0] = tmp[0];
1879	edge.sharedVertIndex[1] = tmp[1];
1880	// bool degenerate
1881	readBools(stream, &(edge.degenerate), 1);
1882	}
1883	}
1884	}
1885	//---------------------------------------------------------------------
1886	size_t MeshSerializerImpl::calcAnimationsSize(const Mesh* pMesh)
1887	{
1888	size_t size = STREAM_OVERHEAD_SIZE;
1889
1890	for (unsigned short a = 0; a < pMesh->getNumAnimations(); ++a)
1891	{
1892	Animation* anim = pMesh->getAnimation(a);
1893	size += calcAnimationSize(anim);
1894	}
1895	return size;
1896
1897	}
1898	//---------------------------------------------------------------------
1899	size_t MeshSerializerImpl::calcAnimationSize(const Animation* anim)
1900	{
1901	size_t size = STREAM_OVERHEAD_SIZE;
1902	// char* name
1903	size += anim->getName().length() + 1;
1904
1905	// float length
1906	size += sizeof(float);
1907
1908	Animation::VertexTrackIterator trackIt = anim->getVertexTrackIterator();
1909	while (trackIt.hasMoreElements())
1910	{
1911	VertexAnimationTrack* vt = trackIt.getNext();
1912	size += calcAnimationTrackSize(vt);
1913	}
1914
1915	return size;
1916	}
1917	//---------------------------------------------------------------------
1918	size_t MeshSerializerImpl::calcAnimationTrackSize(const VertexAnimationTrack* track)
1919	{
1920	size_t size = STREAM_OVERHEAD_SIZE;
1921	// uint16 type
1922	size += sizeof(uint16);
1923	// unsigned short target // 0 for shared geometry,
1924	size += sizeof(unsigned short);
1925
1926	if (track->getAnimationType() == VAT_MORPH)
1927	{
1928	for (unsigned short i = 0; i < track->getNumKeyFrames(); ++i)
1929	{
1930	VertexMorphKeyFrame* kf = track->getVertexMorphKeyFrame(i);
1931	size += calcMorphKeyframeSize(kf, track->getAssociatedVertexData()->vertexCount);
1932	}
1933	}
1934	else
1935	{
1936	for (unsigned short i = 0; i < track->getNumKeyFrames(); ++i)
1937	{
1938	VertexPoseKeyFrame* kf = track->getVertexPoseKeyFrame(i);
1939	size += calcPoseKeyframeSize(kf);
1940	}
1941	}
1942	return size;
1943	}
1944	//---------------------------------------------------------------------
1945	size_t MeshSerializerImpl::calcMorphKeyframeSize(const VertexMorphKeyFrame* kf,
1946	size_t vertexCount)
1947	{
1948	size_t size = STREAM_OVERHEAD_SIZE;
1949	// float time
1950	size += sizeof(float);
1951	// bool isOriginalGeometry // point at original geometry?
1952	size += sizeof(bool);
1953	// float x,y,z
1954	size += sizeof(float) * 3 * vertexCount;
1955
1956	return size;
1957	}
1958	//---------------------------------------------------------------------
1959	size_t MeshSerializerImpl::calcPoseKeyframeSize(const VertexPoseKeyFrame* kf)
1960	{
1961	size_t size = STREAM_OVERHEAD_SIZE;
1962
1963	// float time
1964	size += sizeof(float);
1965
1966	size += calcPoseKeyframePoseRefSize() * kf->getPoseReferences().size();
1967
1968	return size;
1969
1970	}
1971	//---------------------------------------------------------------------
1972	size_t MeshSerializerImpl::calcPoseKeyframePoseRefSize(void)
1973	{
1974	size_t size = STREAM_OVERHEAD_SIZE;
1975	// unsigned short poseIndex
1976	size += sizeof(uint16);
1977	// float influence
1978	size += sizeof(float);
1979
1980	return size;
1981
1982	}
1983	//---------------------------------------------------------------------
1984	size_t MeshSerializerImpl::calcPosesSize(const Mesh* pMesh)
1985	{
1986	size_t size = STREAM_OVERHEAD_SIZE;
1987
1988	Mesh::ConstPoseIterator poseIt = pMesh->getPoseIterator();
1989	while (poseIt.hasMoreElements())
1990	{
1991	size += calcPoseSize(poseIt.getNext());
1992	}
1993	return size;
1994	}
1995	//---------------------------------------------------------------------
1996	size_t MeshSerializerImpl::calcPoseSize(const Pose* pose)
1997	{
1998	size_t size = STREAM_OVERHEAD_SIZE;
1999
2000	// char* name (may be blank)
2001	size += pose->getName().length() + 1;
2002	// unsigned short target
2003	size += sizeof(uint16);
2004
2005	// vertex offsets
2006	size += pose->getVertexOffsets().size() * calcPoseVertexSize();
2007
2008	return size;
2009
2010	}
2011	//---------------------------------------------------------------------
2012	size_t MeshSerializerImpl::calcPoseVertexSize(void)
2013	{
2014	size_t size = STREAM_OVERHEAD_SIZE;
2015	// unsigned long vertexIndex
2016	size += sizeof(uint32);
2017	// float xoffset, yoffset, zoffset
2018	size += sizeof(float) * 3;
2019
2020	return size;
2021	}
2022	//---------------------------------------------------------------------
2023	void MeshSerializerImpl::writePoses(const Mesh* pMesh)
2024	{
2025	Mesh::ConstPoseIterator poseIterator = pMesh->getPoseIterator();
2026	if (poseIterator.hasMoreElements())
2027	{
2028	writeChunkHeader(M_POSES, calcPosesSize(pMesh));
2029	while (poseIterator.hasMoreElements())
2030	{
2031	writePose(poseIterator.getNext());
2032	}
2033	}
2034
2035	}
2036	//---------------------------------------------------------------------
2037	void MeshSerializerImpl::writePose(const Pose* pose)
2038	{
2039	writeChunkHeader(M_POSE, calcPoseSize(pose));
2040
2041	// char* name (may be blank)
2042	writeString(pose->getName());
2043
2044	// unsigned short target
2045	ushort val = pose->getTarget();
2046	writeShorts(&val, 1);
2047
2048	size_t vertexSize = calcPoseVertexSize();
2049	Pose::ConstVertexOffsetIterator vit = pose->getVertexOffsetIterator();
2050	while (vit.hasMoreElements())
2051	{
2052	uint32 vertexIndex = (uint32)vit.peekNextKey();
2053	Vector3 offset = vit.getNext();
2054	writeChunkHeader(M_POSE_VERTEX, vertexSize);
2055	// unsigned long vertexIndex
2056	writeInts(&vertexIndex, 1);
2057	// float xoffset, yoffset, zoffset
2058	writeFloats(offset.ptr(), 3);
2059	}
2060
2061
2062	}
2063	//---------------------------------------------------------------------
2064	void MeshSerializerImpl::writeAnimations(const Mesh* pMesh)
2065	{
2066	writeChunkHeader(M_ANIMATIONS, calcAnimationsSize(pMesh));
2067
2068	for (unsigned short a = 0; a < pMesh->getNumAnimations(); ++a)
2069	{
2070	Animation* anim = pMesh->getAnimation(a);
2071	LogManager::getSingleton().logMessage("Exporting animation " + anim->getName());
2072	writeAnimation(anim);
2073	LogManager::getSingleton().logMessage("Animation exported.");
2074	}
2075	}
2076	//---------------------------------------------------------------------
2077	void MeshSerializerImpl::writeAnimation(const Animation* anim)
2078	{
2079	writeChunkHeader(M_ANIMATION, calcAnimationSize(anim));
2080	// char* name
2081	writeString(anim->getName());
2082	// float length
2083	float len = anim->getLength();
2084	writeFloats(&len, 1);
2085	Animation::VertexTrackIterator trackIt = anim->getVertexTrackIterator();
2086	while (trackIt.hasMoreElements())
2087	{
2088	VertexAnimationTrack* vt = trackIt.getNext();
2089	writeAnimationTrack(vt);
2090	}
2091
2092
2093	}
2094	//---------------------------------------------------------------------
2095	void MeshSerializerImpl::writeAnimationTrack(const VertexAnimationTrack* track)
2096	{
2097	writeChunkHeader(M_ANIMATION_TRACK, calcAnimationTrackSize(track));
2098	// unsigned short type // 1 == morph, 2 == pose
2099	uint16 animType = (uint16)track->getAnimationType();
2100	writeShorts(&animType, 1);
2101	// unsigned short target
2102	uint16 target = track->getHandle();
2103	writeShorts(&target, 1);
2104
2105	if (track->getAnimationType() == VAT_MORPH)
2106	{
2107	for (unsigned short i = 0; i < track->getNumKeyFrames(); ++i)
2108	{
2109	VertexMorphKeyFrame* kf = track->getVertexMorphKeyFrame(i);
2110	writeMorphKeyframe(kf, track->getAssociatedVertexData()->vertexCount);
2111	}
2112	}
2113	else // VAT_POSE
2114	{
2115	for (unsigned short i = 0; i < track->getNumKeyFrames(); ++i)
2116	{
2117	VertexPoseKeyFrame* kf = track->getVertexPoseKeyFrame(i);
2118	writePoseKeyframe(kf);
2119	}
2120	}
2121
2122	}
2123	//---------------------------------------------------------------------
2124	void MeshSerializerImpl::writeMorphKeyframe(const VertexMorphKeyFrame* kf, size_t vertexCount)
2125	{
2126	writeChunkHeader(M_ANIMATION_MORPH_KEYFRAME, calcMorphKeyframeSize(kf, vertexCount));
2127	// float time
2128	float timePos = kf->getTime();
2129	writeFloats(&timePos, 1);
2130	// float x,y,z // repeat by number of vertices in original geometry
2131	float* pSrc = static_cast<float*>(
2132	kf->getVertexBuffer()->lock(HardwareBuffer::HBL_READ_ONLY));
2133	writeFloats(pSrc, vertexCount * 3);
2134	kf->getVertexBuffer()->unlock();
2135	}
2136	//---------------------------------------------------------------------
2137	void MeshSerializerImpl::writePoseKeyframe(const VertexPoseKeyFrame* kf)
2138	{
2139	writeChunkHeader(M_ANIMATION_POSE_KEYFRAME, calcPoseKeyframeSize(kf));
2140	// float time
2141	float timePos = kf->getTime();
2142	writeFloats(&timePos, 1);
2143
2144	// pose references
2145	VertexPoseKeyFrame::ConstPoseRefIterator poseRefIt =
2146	kf->getPoseReferenceIterator();
2147	while (poseRefIt.hasMoreElements())
2148	{
2149	writePoseKeyframePoseRef(poseRefIt.getNext());
2150	}
2151
2152
2153
2154	}
2155	//---------------------------------------------------------------------
2156	void MeshSerializerImpl::writePoseKeyframePoseRef(
2157	const VertexPoseKeyFrame::PoseRef& poseRef)
2158	{
2159	writeChunkHeader(M_ANIMATION_POSE_REF, calcPoseKeyframePoseRefSize());
2160	// unsigned short poseIndex
2161	writeShorts(&(poseRef.poseIndex), 1);
2162	// float influence
2163	writeFloats(&(poseRef.influence), 1);
2164	}
2165	//---------------------------------------------------------------------
2166	void MeshSerializerImpl::readPoses(DataStreamPtr& stream, Mesh* pMesh)
2167	{
2168	unsigned short streamID;
2169
2170	// Find all substreams
2171	if (!stream->eof())
2172	{
2173	streamID = readChunk(stream);
2174	while(!stream->eof() &&
2175	(streamID == M_POSE))
2176	{
2177	switch(streamID)
2178	{
2179	case M_POSE:
2180	readPose(stream, pMesh);
2181	break;
2182
2183	}
2184
2185	if (!stream->eof())
2186	{
2187	streamID = readChunk(stream);
2188	}
2189
2190	}
2191	if (!stream->eof())
2192	{
2193	// Backpedal back to start of stream
2194	stream->skip(-STREAM_OVERHEAD_SIZE);
2195	}
2196	}
2197	}
2198	//---------------------------------------------------------------------
2199	void MeshSerializerImpl::readPose(DataStreamPtr& stream, Mesh* pMesh)
2200	{
2201	// char* name (may be blank)
2202	String name = readString(stream);
2203	// unsigned short target
2204	unsigned short target;
2205	readShorts(stream, &target, 1);
2206
2207	Pose* pose = pMesh->createPose(target, name);
2208
2209	// Find all substreams
2210	unsigned short streamID;
2211	if (!stream->eof())
2212	{
2213	streamID = readChunk(stream);
2214	while(!stream->eof() &&
2215	(streamID == M_POSE_VERTEX))
2216	{
2217	switch(streamID)
2218	{
2219	case M_POSE_VERTEX:
2220	// create vertex offset
2221	uint32 vertIndex;
2222	Vector3 offset;
2223	// unsigned long vertexIndex
2224	readInts(stream, &vertIndex, 1);
2225	// float xoffset, yoffset, zoffset
2226	readFloats(stream, offset.ptr(), 3);
2227
2228	pose->addVertex(vertIndex, offset);
2229	break;
2230
2231	}
2232
2233	if (!stream->eof())
2234	{
2235	streamID = readChunk(stream);
2236	}
2237
2238	}
2239	if (!stream->eof())
2240	{
2241	// Backpedal back to start of stream
2242	stream->skip(-STREAM_OVERHEAD_SIZE);
2243	}
2244	}
2245
2246	}
2247	//---------------------------------------------------------------------
2248	void MeshSerializerImpl::readAnimations(DataStreamPtr& stream, Mesh* pMesh)
2249	{
2250	unsigned short streamID;
2251
2252	// Find all substreams
2253	if (!stream->eof())
2254	{
2255	streamID = readChunk(stream);
2256	while(!stream->eof() &&
2257	(streamID == M_ANIMATION))
2258	{
2259	switch(streamID)
2260	{
2261	case M_ANIMATION:
2262	readAnimation(stream, pMesh);
2263	break;
2264
2265	}
2266
2267	if (!stream->eof())
2268	{
2269	streamID = readChunk(stream);
2270	}
2271
2272	}
2273	if (!stream->eof())
2274	{
2275	// Backpedal back to start of stream
2276	stream->skip(-STREAM_OVERHEAD_SIZE);
2277	}
2278	}
2279
2280
2281	}
2282	//---------------------------------------------------------------------
2283	void MeshSerializerImpl::readAnimation(DataStreamPtr& stream, Mesh* pMesh)
2284	{
2285
2286	// char* name
2287	String name = readString(stream);
2288	// float length
2289	float len;
2290	readFloats(stream, &len, 1);
2291
2292	Animation* anim = pMesh->createAnimation(name, len);
2293
2294	// tracks
2295	unsigned short streamID;
2296
2297	if (!stream->eof())
2298	{
2299	streamID = readChunk(stream);
2300	while(!stream->eof() &&
2301	streamID == M_ANIMATION_TRACK)
2302	{
2303	switch(streamID)
2304	{
2305	case M_ANIMATION_TRACK:
2306	readAnimationTrack(stream, anim, pMesh);
2307	break;
2308	};
2309	if (!stream->eof())
2310	{
2311	streamID = readChunk(stream);
2312	}
2313
2314	}
2315	if (!stream->eof())
2316	{
2317	// Backpedal back to start of stream
2318	stream->skip(-STREAM_OVERHEAD_SIZE);
2319	}
2320	}
2321	}
2322	//---------------------------------------------------------------------
2323	void MeshSerializerImpl::readAnimationTrack(DataStreamPtr& stream,
2324	Animation* anim, Mesh* pMesh)
2325	{
2326	// ushort type
2327	uint16 inAnimType;
2328	readShorts(stream, &inAnimType, 1);
2329	VertexAnimationType animType = (VertexAnimationType)inAnimType;
2330
2331	// unsigned short target
2332	uint16 target;
2333	readShorts(stream, &target, 1);
2334
2335	VertexAnimationTrack* track = anim->createVertexTrack(target,
2336	pMesh->getVertexDataByTrackHandle(target), animType);
2337
2338	// keyframes
2339	unsigned short streamID;
2340
2341	if (!stream->eof())
2342	{
2343	streamID = readChunk(stream);
2344	while(!stream->eof() &&
2345	(streamID == M_ANIMATION_MORPH_KEYFRAME \|\|
2346	streamID == M_ANIMATION_POSE_KEYFRAME))
2347	{
2348	switch(streamID)
2349	{
2350	case M_ANIMATION_MORPH_KEYFRAME:
2351	readMorphKeyFrame(stream, track);
2352	break;
2353	case M_ANIMATION_POSE_KEYFRAME:
2354	readPoseKeyFrame(stream, track);
2355	break;
2356	};
2357	if (!stream->eof())
2358	{
2359	streamID = readChunk(stream);
2360	}
2361
2362	}
2363	if (!stream->eof())
2364	{
2365	// Backpedal back to start of stream
2366	stream->skip(-STREAM_OVERHEAD_SIZE);
2367	}
2368	}
2369
2370	}
2371	//---------------------------------------------------------------------
2372	void MeshSerializerImpl::readMorphKeyFrame(DataStreamPtr& stream, VertexAnimationTrack* track)
2373	{
2374	// float time
2375	float timePos;
2376	readFloats(stream, &timePos, 1);
2377
2378	VertexMorphKeyFrame* kf = track->createVertexMorphKeyFrame(timePos);
2379
2380	// Create buffer, allow read and use shadow buffer
2381	size_t vertexCount = track->getAssociatedVertexData()->vertexCount;
2382	HardwareVertexBufferSharedPtr vbuf =
2383	HardwareBufferManager::getSingleton().createVertexBuffer(
2384	VertexElement::getTypeSize(VET_FLOAT3), vertexCount,
2385	HardwareBuffer::HBU_STATIC, true);
2386	// float x,y,z // repeat by number of vertices in original geometry
2387	float* pDst = static_cast<float*>(
2388	vbuf->lock(HardwareBuffer::HBL_DISCARD));
2389	readFloats(stream, pDst, vertexCount * 3);
2390	vbuf->unlock();
2391	kf->setVertexBuffer(vbuf);
2392
2393	}
2394	//---------------------------------------------------------------------
2395	void MeshSerializerImpl::readPoseKeyFrame(DataStreamPtr& stream, VertexAnimationTrack* track)
2396	{
2397	// float time
2398	float timePos;
2399	readFloats(stream, &timePos, 1);
2400
2401	// Create keyframe
2402	VertexPoseKeyFrame* kf = track->createVertexPoseKeyFrame(timePos);
2403
2404	unsigned short streamID;
2405
2406	if (!stream->eof())
2407	{
2408	streamID = readChunk(stream);
2409	while(!stream->eof() &&
2410	streamID == M_ANIMATION_POSE_REF)
2411	{
2412	switch(streamID)
2413	{
2414	case M_ANIMATION_POSE_REF:
2415	uint16 poseIndex;
2416	float influence;
2417	// unsigned short poseIndex
2418	readShorts(stream, &poseIndex, 1);
2419	// float influence
2420	readFloats(stream, &influence, 1);
2421
2422	kf->addPoseReference(poseIndex, influence);
2423
2424	break;
2425	};
2426	if (!stream->eof())
2427	{
2428	streamID = readChunk(stream);
2429	}
2430
2431	}
2432	if (!stream->eof())
2433	{
2434	// Backpedal back to start of stream
2435	stream->skip(-STREAM_OVERHEAD_SIZE);
2436	}
2437	}
2438
2439	}
2440	//---------------------------------------------------------------------
2441	//---------------------------------------------------------------------
2442	//---------------------------------------------------------------------
2443	MeshSerializerImpl_v1_3::MeshSerializerImpl_v1_3()
2444	{
2445	// Version number
2446	mVersion = "[MeshSerializer_v1.30]";
2447	}
2448	//---------------------------------------------------------------------
2449	MeshSerializerImpl_v1_3::~MeshSerializerImpl_v1_3()
2450	{
2451	}
2452	//---------------------------------------------------------------------
2453	void MeshSerializerImpl_v1_3::readEdgeListLodInfo(DataStreamPtr& stream,
2454	EdgeData* edgeData)
2455	{
2456	// unsigned long numTriangles
2457	uint32 numTriangles;
2458	readInts(stream, &numTriangles, 1);
2459	// Allocate correct amount of memory
2460	edgeData->triangles.resize(numTriangles);
2461	edgeData->triangleFaceNormals.resize(numTriangles);
2462	edgeData->triangleLightFacings.resize(numTriangles);
2463	// unsigned long numEdgeGroups
2464	uint32 numEdgeGroups;
2465	readInts(stream, &numEdgeGroups, 1);
2466	// Allocate correct amount of memory
2467	edgeData->edgeGroups.resize(numEdgeGroups);
2468	// Triangle* triangleList
2469	uint32 tmp[3];
2470	for (size_t t = 0; t < numTriangles; ++t)
2471	{
2472	EdgeData::Triangle& tri = edgeData->triangles[t];
2473	// unsigned long indexSet
2474	readInts(stream, tmp, 1);
2475	tri.indexSet = tmp[0];
2476	// unsigned long vertexSet
2477	readInts(stream, tmp, 1);
2478	tri.vertexSet = tmp[0];
2479	// unsigned long vertIndex[3]
2480	readInts(stream, tmp, 3);
2481	tri.vertIndex[0] = tmp[0];
2482	tri.vertIndex[1] = tmp[1];
2483	tri.vertIndex[2] = tmp[2];
2484	// unsigned long sharedVertIndex[3]
2485	readInts(stream, tmp, 3);
2486	tri.sharedVertIndex[0] = tmp[0];
2487	tri.sharedVertIndex[1] = tmp[1];
2488	tri.sharedVertIndex[2] = tmp[2];
2489	// float normal[4]
2490	readFloats(stream, &(edgeData->triangleFaceNormals[t].x), 4);
2491
2492	}
2493
2494	// Assume the mesh is closed, it will update later
2495	edgeData->isClosed = true;
2496
2497	for (uint32 eg = 0; eg < numEdgeGroups; ++eg)
2498	{
2499	unsigned short streamID = readChunk(stream);
2500	if (streamID != M_EDGE_GROUP)
2501	{
2502	OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR,
2503	"Missing M_EDGE_GROUP stream",
2504	"MeshSerializerImpl_v1_3::readEdgeListLodInfo");
2505	}
2506	EdgeData::EdgeGroup& edgeGroup = edgeData->edgeGroups[eg];
2507
2508	// unsigned long vertexSet
2509	readInts(stream, tmp, 1);
2510	edgeGroup.vertexSet = tmp[0];
2511	// unsigned long numEdges
2512	uint32 numEdges;
2513	readInts(stream, &numEdges, 1);
2514	edgeGroup.edges.resize(numEdges);
2515	// Edge* edgeList
2516	for (uint32 e = 0; e < numEdges; ++e)
2517	{
2518	EdgeData::Edge& edge = edgeGroup.edges[e];
2519	// unsigned long triIndex[2]
2520	readInts(stream, tmp, 2);
2521	edge.triIndex[0] = tmp[0];
2522	edge.triIndex[1] = tmp[1];
2523	// unsigned long vertIndex[2]
2524	readInts(stream, tmp, 2);
2525	edge.vertIndex[0] = tmp[0];
2526	edge.vertIndex[1] = tmp[1];
2527	// unsigned long sharedVertIndex[2]
2528	readInts(stream, tmp, 2);
2529	edge.sharedVertIndex[0] = tmp[0];
2530	edge.sharedVertIndex[1] = tmp[1];
2531	// bool degenerate
2532	readBools(stream, &(edge.degenerate), 1);
2533
2534	// The mesh is closed only if no degenerate edge here
2535	if (edge.degenerate)
2536	{
2537	edgeData->isClosed = false;
2538	}
2539	}
2540	}
2541
2542	reorganiseTriangles(edgeData);
2543	}
2544	//---------------------------------------------------------------------
2545	void MeshSerializerImpl_v1_3::reorganiseTriangles(EdgeData* edgeData)
2546	{
2547	size_t numTriangles = edgeData->triangles.size();
2548
2549	if (edgeData->edgeGroups.size() == 1)
2550	{
2551	// Special case for only one edge group in the edge list, which occuring
2552	// most time. In this case, all triangles belongs to that group.
2553	edgeData->edgeGroups.front().triStart = 0;
2554	edgeData->edgeGroups.front().triCount = numTriangles;
2555	}
2556	else
2557	{
2558	EdgeData::EdgeGroupList::iterator egi, egend;
2559	egend = edgeData->edgeGroups.end();
2560
2561	// Calculate number of triangles for edge groups
2562
2563	for (egi = edgeData->edgeGroups.begin(); egi != egend; ++egi)
2564	{
2565	egi->triStart = 0;
2566	egi->triCount = 0;
2567	}
2568
2569	bool isGrouped = true;
2570	EdgeData::EdgeGroup* lastEdgeGroup = 0;
2571	for (size_t t = 0; t < numTriangles; ++t)
2572	{
2573	// Gets the edge group that the triangle belongs to
2574	const EdgeData::Triangle& tri = edgeData->triangles[t];
2575	EdgeData::EdgeGroup* edgeGroup = &edgeData->edgeGroups[tri.vertexSet];
2576
2577	// Does edge group changes from last edge group?
2578	if (isGrouped && edgeGroup != lastEdgeGroup)
2579	{
2580	// Remember last edge group
2581	lastEdgeGroup = edgeGroup;
2582
2583	// Is't first time encounter this edge group?
2584	if (!edgeGroup->triCount && !edgeGroup->triStart)
2585	{
2586	// setup first triangle of this edge group
2587	edgeGroup->triStart = t;
2588	}
2589	else
2590	{
2591	// original triangles doesn't grouping by edge group
2592	isGrouped = false;
2593	}
2594	}
2595
2596	// Count number of triangles for this edge group
2597	++edgeGroup->triCount;
2598	}
2599
2600	//
2601	// Note that triangles has been sorted by vertex set for a long time,
2602	// but never stored to old version mesh file.
2603	//
2604	// Adopt this fact to avoid remap triangles here.
2605	//
2606
2607	// Does triangles grouped by vertex set?
2608	if (!isGrouped)
2609	{
2610	// Ok, the triangles of this edge list isn't grouped by vertex set
2611	// perfectly, seems ancient mesh file.
2612	//
2613	// We need work hardly to group triangles by vertex set.
2614	//
2615
2616	// Calculate triStart and reset triCount to zero for each edge group first
2617	size_t triStart = 0;
2618	for (egi = edgeData->edgeGroups.begin(); egi != egend; ++egi)
2619	{
2620	egi->triStart = triStart;
2621	triStart += egi->triCount;
2622	egi->triCount = 0;
2623	}
2624
2625	// The map used to mapping original triangle index to new index
2626	typedef std::vector<size_t> TriangleIndexRemap;
2627	TriangleIndexRemap triangleIndexRemap(numTriangles);
2628
2629	// New triangles information that should be group by vertex set.
2630	EdgeData::TriangleList newTriangles(numTriangles);
2631	EdgeData::TriangleFaceNormalList newTriangleFaceNormals(numTriangles);
2632
2633	// Calculate triangle index map and organise triangles information
2634	for (size_t t = 0; t < numTriangles; ++t)
2635	{
2636	// Gets the edge group that the triangle belongs to
2637	const EdgeData::Triangle& tri = edgeData->triangles[t];
2638	EdgeData::EdgeGroup& edgeGroup = edgeData->edgeGroups[tri.vertexSet];
2639
2640	// Calculate new index
2641	size_t newIndex = edgeGroup.triStart + edgeGroup.triCount;
2642	++edgeGroup.triCount;
2643
2644	// Setup triangle index mapping entry
2645	triangleIndexRemap[t] = newIndex;
2646
2647	// Copy triangle info to new placement
2648	newTriangles[newIndex] = tri;
2649	newTriangleFaceNormals[newIndex] = edgeData->triangleFaceNormals[t];
2650	}
2651
2652	// Replace with new triangles information
2653	edgeData->triangles.swap(newTriangles);
2654	edgeData->triangleFaceNormals.swap(newTriangleFaceNormals);
2655
2656	// Now, update old triangle indices to new index
2657	for (egi = edgeData->edgeGroups.begin(); egi != egend; ++egi)
2658	{
2659	EdgeData::EdgeList::iterator ei, eend;
2660	eend = egi->edges.end();
2661	for (ei = egi->edges.begin(); ei != eend; ++ei)
2662	{
2663	ei->triIndex[0] = triangleIndexRemap[ei->triIndex[0]];
2664	if (!ei->degenerate)
2665	{
2666	ei->triIndex[1] = triangleIndexRemap[ei->triIndex[1]];
2667	}
2668	}
2669	}
2670	}
2671	}
2672	}
2673	//---------------------------------------------------------------------
2674	void MeshSerializerImpl::readExtremes(DataStreamPtr& stream, Mesh *pMesh)
2675	{
2676	unsigned short idx;
2677	readShorts(stream, &idx, 1);
2678
2679	SubMesh *sm = pMesh->getSubMesh (idx);
2680
2681	int n_floats = (mCurrentstreamLen - STREAM_OVERHEAD_SIZE -
2682	sizeof (unsigned short)) / sizeof (float);
2683
2684	assert ((n_floats % 3) == 0);
2685
2686	float *vert = new float[n_floats];
2687	readFloats(stream, vert, n_floats);
2688
2689	for (int i = 0; i < n_floats; i += 3)
2690	sm->extremityPoints.push_back(Vector3(vert [i], vert [i + 1], vert [i + 2]));
2691
2692	delete [] vert;
2693	}
2694	//---------------------------------------------------------------------
2695	//---------------------------------------------------------------------
2696	//---------------------------------------------------------------------
2697	MeshSerializerImpl_v1_2::MeshSerializerImpl_v1_2()
2698	{
2699	// Version number
2700	mVersion = "[MeshSerializer_v1.20]";
2701	}
2702	//---------------------------------------------------------------------
2703	MeshSerializerImpl_v1_2::~MeshSerializerImpl_v1_2()
2704	{
2705	}
2706	//---------------------------------------------------------------------
2707	void MeshSerializerImpl_v1_2::readMesh(DataStreamPtr& stream, Mesh* pMesh)
2708	{
2709	MeshSerializerImpl::readMesh(stream, pMesh);
2710	// Always automatically build edge lists for this version
2711	pMesh->mAutoBuildEdgeLists = true;
2712
2713	}
2714	//---------------------------------------------------------------------
2715	void MeshSerializerImpl_v1_2::readGeometry(DataStreamPtr& stream, Mesh* pMesh,
2716	VertexData* dest)
2717	{
2718	unsigned short texCoordSet = 0;
2719
2720	unsigned short bindIdx = 0;
2721
2722	dest->vertexStart = 0;
2723
2724	unsigned int vertexCount = 0;
2725	readInts(stream, &vertexCount, 1);
2726	dest->vertexCount = vertexCount;
2727
2728	// Vertex buffers
2729
2730	readGeometryPositions(bindIdx, stream, pMesh, dest);
2731	++bindIdx;
2732
2733	// Find optional geometry streams
2734	if (!stream->eof())
2735	{
2736	unsigned short streamID = readChunk(stream);
2737	while(!stream->eof() &&
2738	(streamID == M_GEOMETRY_NORMALS \|\|
2739	streamID == M_GEOMETRY_COLOURS \|\|
2740	streamID == M_GEOMETRY_TEXCOORDS ))
2741	{
2742	switch (streamID)
2743	{
2744	case M_GEOMETRY_NORMALS:
2745	readGeometryNormals(bindIdx++, stream, pMesh, dest);
2746	break;
2747	case M_GEOMETRY_COLOURS:
2748	readGeometryColours(bindIdx++, stream, pMesh, dest);
2749	break;
2750	case M_GEOMETRY_TEXCOORDS:
2751	readGeometryTexCoords(bindIdx++, stream, pMesh, dest, texCoordSet++);
2752	break;
2753	}
2754	// Get next stream
2755	if (!stream->eof())
2756	{
2757	streamID = readChunk(stream);
2758	}
2759	}
2760	if (!stream->eof())
2761	{
2762	// Backpedal back to start of non-submesh stream
2763	stream->skip(-STREAM_OVERHEAD_SIZE);
2764	}
2765	}
2766	}
2767	//---------------------------------------------------------------------
2768	void MeshSerializerImpl_v1_2::readGeometryPositions(unsigned short bindIdx,
2769	DataStreamPtr& stream, Mesh* pMesh, VertexData* dest)
2770	{
2771	float *pFloat = 0;
2772	HardwareVertexBufferSharedPtr vbuf;
2773	// float* pVertices (x, y, z order x numVertices)
2774	dest->vertexDeclaration->addElement(bindIdx, 0, VET_FLOAT3, VES_POSITION);
2775	vbuf = HardwareBufferManager::getSingleton().createVertexBuffer(
2776	dest->vertexDeclaration->getVertexSize(bindIdx),
2777	dest->vertexCount,
2778	pMesh->mVertexBufferUsage,
2779	pMesh->mIndexBufferShadowBuffer);
2780	pFloat = static_cast<float*>(
2781	vbuf->lock(HardwareBuffer::HBL_DISCARD));
2782	readFloats(stream, pFloat, dest->vertexCount * 3);
2783	vbuf->unlock();
2784	dest->vertexBufferBinding->setBinding(bindIdx, vbuf);
2785	}
2786	//---------------------------------------------------------------------
2787	void MeshSerializerImpl_v1_2::readGeometryNormals(unsigned short bindIdx,
2788	DataStreamPtr& stream, Mesh* pMesh, VertexData* dest)
2789	{
2790	float *pFloat = 0;
2791	HardwareVertexBufferSharedPtr vbuf;
2792	// float* pNormals (x, y, z order x numVertices)
2793	dest->vertexDeclaration->addElement(bindIdx, 0, VET_FLOAT3, VES_NORMAL);
2794	vbuf = HardwareBufferManager::getSingleton().createVertexBuffer(
2795	dest->vertexDeclaration->getVertexSize(bindIdx),
2796	dest->vertexCount,
2797	pMesh->mVertexBufferUsage,
2798	pMesh->mVertexBufferShadowBuffer);
2799	pFloat = static_cast<float*>(
2800	vbuf->lock(HardwareBuffer::HBL_DISCARD));
2801	readFloats(stream, pFloat, dest->vertexCount * 3);
2802	vbuf->unlock();
2803	dest->vertexBufferBinding->setBinding(bindIdx, vbuf);
2804	}
2805	//---------------------------------------------------------------------
2806	void MeshSerializerImpl_v1_2::readGeometryColours(unsigned short bindIdx,
2807	DataStreamPtr& stream, Mesh* pMesh, VertexData* dest)
2808	{
2809	RGBA* pRGBA = 0;
2810	HardwareVertexBufferSharedPtr vbuf;
2811	// unsigned long* pColours (RGBA 8888 format x numVertices)
2812	dest->vertexDeclaration->addElement(bindIdx, 0, VET_COLOUR, VES_DIFFUSE);
2813	vbuf = HardwareBufferManager::getSingleton().createVertexBuffer(
2814	dest->vertexDeclaration->getVertexSize(bindIdx),
2815	dest->vertexCount,
2816	pMesh->mVertexBufferUsage,
2817	pMesh->mVertexBufferShadowBuffer);
2818	pRGBA = static_cast<RGBA*>(
2819	vbuf->lock(HardwareBuffer::HBL_DISCARD));
2820	readInts(stream, pRGBA, dest->vertexCount);
2821	vbuf->unlock();
2822	dest->vertexBufferBinding->setBinding(bindIdx, vbuf);
2823	}
2824	//---------------------------------------------------------------------
2825	void MeshSerializerImpl_v1_2::readGeometryTexCoords(unsigned short bindIdx,
2826	DataStreamPtr& stream, Mesh* pMesh, VertexData* dest, unsigned short texCoordSet)
2827	{
2828	float *pFloat = 0;
2829	HardwareVertexBufferSharedPtr vbuf;
2830	// unsigned short dimensions (1 for 1D, 2 for 2D, 3 for 3D)
2831	unsigned short dim;
2832	readShorts(stream, &dim, 1);
2833	// float* pTexCoords (u [v] [w] order, dimensions x numVertices)
2834	dest->vertexDeclaration->addElement(
2835	bindIdx,
2836	0,
2837	VertexElement::multiplyTypeCount(VET_FLOAT1, dim),
2838	VES_TEXTURE_COORDINATES,
2839	texCoordSet);
2840	vbuf = HardwareBufferManager::getSingleton().createVertexBuffer(
2841	dest->vertexDeclaration->getVertexSize(bindIdx),
2842	dest->vertexCount,
2843	pMesh->mVertexBufferUsage,
2844	pMesh->mVertexBufferShadowBuffer);
2845	pFloat = static_cast<float*>(
2846	vbuf->lock(HardwareBuffer::HBL_DISCARD));
2847	readFloats(stream, pFloat, dest->vertexCount * dim);
2848	vbuf->unlock();
2849	dest->vertexBufferBinding->setBinding(bindIdx, vbuf);
2850	}
2851	//---------------------------------------------------------------------
2852	//---------------------------------------------------------------------
2853	//---------------------------------------------------------------------
2854	MeshSerializerImpl_v1_1::MeshSerializerImpl_v1_1()
2855	{
2856	// Version number
2857	mVersion = "[MeshSerializer_v1.10]";
2858	}
2859	//---------------------------------------------------------------------
2860	MeshSerializerImpl_v1_1::~MeshSerializerImpl_v1_1()
2861	{
2862	}
2863	//---------------------------------------------------------------------
2864	void MeshSerializerImpl_v1_1::readGeometryTexCoords(unsigned short bindIdx,
2865	DataStreamPtr& stream, Mesh* pMesh, VertexData* dest, unsigned short texCoordSet)
2866	{
2867	float *pFloat = 0;
2868	HardwareVertexBufferSharedPtr vbuf;
2869	// unsigned short dimensions (1 for 1D, 2 for 2D, 3 for 3D)
2870	unsigned short dim;
2871	readShorts(stream, &dim, 1);
2872	// float* pTexCoords (u [v] [w] order, dimensions x numVertices)
2873	dest->vertexDeclaration->addElement(
2874	bindIdx,
2875	0,
2876	VertexElement::multiplyTypeCount(VET_FLOAT1, dim),
2877	VES_TEXTURE_COORDINATES,
2878	texCoordSet);
2879	vbuf = HardwareBufferManager::getSingleton().createVertexBuffer(
2880	dest->vertexDeclaration->getVertexSize(bindIdx),
2881	dest->vertexCount,
2882	pMesh->getVertexBufferUsage(),
2883	pMesh->isVertexBufferShadowed());
2884	pFloat = static_cast<float*>(
2885	vbuf->lock(HardwareBuffer::HBL_DISCARD));
2886	readFloats(stream, pFloat, dest->vertexCount * dim);
2887
2888	// Adjust individual v values to (1 - v)
2889	if (dim == 2)
2890	{
2891	for (size_t i = 0; i < dest->vertexCount; ++i)
2892	{
2893	++pFloat; // skip u
2894	pFloat = 1.0 - pFloat; // v = 1 - v
2895	++pFloat;
2896	}
2897
2898	}
2899	vbuf->unlock();
2900	dest->vertexBufferBinding->setBinding(bindIdx, vbuf);
2901	}
2902	//---------------------------------------------------------------------
2903	//---------------------------------------------------------------------
2904	//---------------------------------------------------------------------
2905
2906
2907
2908
2909	}
2910

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source: downloads/OgreMain/src/OgreMeshSerializerImpl.cpp @ 5

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