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source: GTP/trunk/Lib/Geom/shared/GTGeometry/src/GeoMesh.cpp @ 1009

Revision 1009, 16.5 KB checked in by gumbau, 18 years ago (diff)

Line
1	#include "GeoMesh.h"
2
3	using namespace Geometry;
4	using namespace std;
5
6	//---------------------------------------------------------------------------
7	// Cosntructor.
8	//---------------------------------------------------------------------------
9	Mesh::Mesh():
10	mVertexBuffer(0), mSubMeshCount(0), mSubMesh(0), hasSkeleton(false)
11	{
12	mMeshBounds.maxX = 0.0;
13	mMeshBounds.maxY = 0.0;
14	mMeshBounds.maxZ = 0.0;
15	mMeshBounds.minX = 0.0;
16	mMeshBounds.minY = 0.0;
17	mMeshBounds.minZ = 0.0;
18	mMeshBounds.scaleFactor = 0.0;
19	}
20
21	//---------------------------------------------------------------------------
22	// Destroyer.
23	//---------------------------------------------------------------------------
24	Mesh::~Mesh()
25	{
26	delete [] mSubMesh;
27	delete mVertexBuffer;
28	}
29
30	//---------------------------------------------------------------------------
31	// Copy constructor.
32	//---------------------------------------------------------------------------
33	Mesh::Mesh(const Mesh &mesh)
34	{
35	mVertexBuffer = new VertexBuffer();
36	mSubMeshCount = mesh.mSubMeshCount;
37	mSubMesh = new SubMesh[mesh.mSubMeshCount];
38
39	// Fill up bounding box settings.
40	mMeshBounds.maxX = mesh.mMeshBounds.maxX;
41	mMeshBounds.maxY = mesh.mMeshBounds.maxY;
42	mMeshBounds.maxZ = mesh.mMeshBounds.maxZ;
43	mMeshBounds.minX = mesh.mMeshBounds.minX;
44	mMeshBounds.minY = mesh.mMeshBounds.minY;
45	mMeshBounds.minZ = mesh.mMeshBounds.minZ;
46	mMeshBounds.radius = mesh.mMeshBounds.radius;
47	mMeshBounds.scaleFactor = mesh.mMeshBounds.scaleFactor;
48
49	// For each submesh.
50	for (size_t i = 0; i < mesh.mSubMeshCount; i++)
51	{
52	mSubMesh[i].mSharedVertexBuffer = false;
53	mSubMesh[i].mVertexBuffer = new VertexBuffer();
54	mSubMesh[i].mVertexBuffer->mPosition = new Vector3[mesh.mSubMesh[i].mVertexBuffer->mVertexCount];
55	mSubMesh[i].mVertexBuffer->mNormal = new Vector3[mesh.mSubMesh[i].mVertexBuffer->mVertexCount];
56	mSubMesh[i].mVertexBuffer->mTexCoords = new Vector2[mesh.mSubMesh[i].mVertexBuffer->mVertexCount];
57	mSubMesh[i].mVertexBuffer->mVertexCount = mesh.mSubMesh[i].mVertexBuffer->mVertexCount;
58	mSubMesh[i].mVertexBuffer->mVertexInfo = mesh.mSubMesh[i].mVertexBuffer->mVertexInfo;
59	mSubMesh[i].mType = mesh.mSubMesh[i].mType;
60
61	strcpy(mSubMesh[i].mMaterialName,mesh.mSubMesh[i].mMaterialName);
62
63	if (mesh.mSubMesh[i].mSharedVertexBuffer)
64	{
65	for (size_t s = 0;
66	s < mesh.mSubMesh[i].mVertexBuffer->mVertexCount;
67	s++)
68	{
69	if (mesh.mSubMesh[i].mVertexBuffer->mVertexInfo & VERTEX_POSITION)
70	{
71	mSubMesh[i].mVertexBuffer->mPosition[s].x = mesh.mVertexBuffer->mPosition[s].x;
72	mSubMesh[i].mVertexBuffer->mPosition[s].y = mesh.mVertexBuffer->mPosition[s].y;
73	mSubMesh[i].mVertexBuffer->mPosition[s].z = mesh.mVertexBuffer->mPosition[s].z;
74	}
75
76	if (mesh.mSubMesh[i].mVertexBuffer->mVertexInfo & VERTEX_NORMAL)
77	{
78	mSubMesh[i].mVertexBuffer->mNormal[s].x = mesh.mVertexBuffer->mNormal[s].x;
79	mSubMesh[i].mVertexBuffer->mNormal[s].y = mesh.mVertexBuffer->mNormal[s].y;
80	mSubMesh[i].mVertexBuffer->mNormal[s].z = mesh.mVertexBuffer->mNormal[s].z;
81	}
82
83	if (mesh.mSubMesh[i].mVertexBuffer->mVertexInfo & VERTEX_TEXCOORDS)
84	{
85	mSubMesh[i].mVertexBuffer->mTexCoords[s].x = mesh.mVertexBuffer->mTexCoords[s].x;
86	mSubMesh[i].mVertexBuffer->mTexCoords[s].y = mesh.mVertexBuffer->mTexCoords[s].y;
87	}
88	}
89
90	mesh.mSubMesh[i].mSharedVertexBuffer = false;
91	}
92	else
93	{
94	for (size_t s = 0; s < mesh.mSubMesh[i].mVertexBuffer->mVertexCount; s++)
95	{
96	if (mesh.mSubMesh[i].mVertexBuffer->mVertexInfo & VERTEX_POSITION)
97	{
98	mSubMesh[i].mVertexBuffer->mPosition[s].x = mesh.mSubMesh[i].mVertexBuffer->mPosition[s].x;
99	mSubMesh[i].mVertexBuffer->mPosition[s].y = mesh.mSubMesh[i].mVertexBuffer->mPosition[s].y;
100	mSubMesh[i].mVertexBuffer->mPosition[s].z = mesh.mSubMesh[i].mVertexBuffer->mPosition[s].z;
101	}
102
103	if (mesh.mSubMesh[i].mVertexBuffer->mVertexInfo & VERTEX_NORMAL)
104	{
105	mSubMesh[i].mVertexBuffer->mNormal[s].x = mesh.mSubMesh[i].mVertexBuffer->mNormal[s].x;
106	mSubMesh[i].mVertexBuffer->mNormal[s].y = mesh.mSubMesh[i].mVertexBuffer->mNormal[s].y;
107	mSubMesh[i].mVertexBuffer->mNormal[s].z = mesh.mSubMesh[i].mVertexBuffer->mNormal[s].z;
108	}
109
110	if (mesh.mSubMesh[i].mVertexBuffer->mVertexInfo & VERTEX_TEXCOORDS)
111	{
112	mSubMesh[i].mVertexBuffer->mTexCoords[s].x = mesh.mSubMesh[i].mVertexBuffer->mTexCoords[s].x;
113	mSubMesh[i].mVertexBuffer->mTexCoords[s].y = mesh.mSubMesh[i].mVertexBuffer->mTexCoords[s].y;
114	}
115	}
116
117	}
118
119	// Copy indices.
120	mSubMesh[i].mIndexCount = mesh.mSubMesh[i].mIndexCount;
121	mSubMesh[i].mIndex = new Index[mSubMesh[i].mIndexCount];
122
123	memcpy( mSubMesh[i].mIndex,
124	mesh.mSubMesh[i].mIndex,
125	mesh.mSubMesh[i].mIndexCount * sizeof(Index));
126
127	// Copy strips.
128	// offset between memory positions.
129	__w64 int offset = 0;
130	mSubMesh[i].mStripCount = mesh.mSubMesh[i].mStripCount;
131
132	if (mesh.mSubMesh[i].mStripCount > 0)
133	{
134	mSubMesh[i].mStrip = new Index*[mesh.mSubMesh[i].mStripCount];
135
136	offset = &(mSubMesh[i].mIndex[0]) - &(mesh.mSubMesh[i].mIndex[0]);
137
138	for (size_t j = 0; j < mesh.mSubMesh[i].mStripCount; j++)
139	{
140	mSubMesh[i].mStrip[j] = mesh.mSubMesh[i].mStrip[j] + offset;
141	}
142	}
143
144	// Copy submesh bones.
145	if (!mesh.mSubMesh[i].mBones.empty())
146	{
147	for (unsigned int j = 0; j < mesh.mSubMesh[i].mBones.size(); j++)
148	{
149	mSubMesh[i].mBones.push_back(mesh.mSubMesh[i].mBones[j]);
150	}
151	}
152	}
153
154	// Copy skeleton name.
155	if (mesh.hasSkeleton)
156	{
157	hasSkeleton = true;
158
159	strcpy(mSkeletonName, mesh.mSkeletonName);
160	}
161
162	// Copy mesh bones.
163	if (!mesh.mBones.empty())
164	{
165	for (unsigned int j = 0; j < mesh.mBones.size(); j++)
166	{
167	mBones.push_back(mesh.mBones[j]);
168	}
169	}
170
171	}
172
173	//---------------------------------------------------------------------------
174	// Assignment operator.
175	//---------------------------------------------------------------------------
176	Mesh &Mesh::operator =(const Mesh &mesh)
177	{
178	bool copied = false;
179	mVertexBuffer = new VertexBuffer();
180	mSubMeshCount = mesh.mSubMeshCount;
181	mSubMesh = new Geometry::SubMesh[mesh.mSubMeshCount];
182
183	// Fill up bounding box settings.
184	mMeshBounds.maxX = mesh.mMeshBounds.maxX;
185	mMeshBounds.maxY = mesh.mMeshBounds.maxY;
186	mMeshBounds.maxZ = mesh.mMeshBounds.maxZ;
187	mMeshBounds.minX = mesh.mMeshBounds.minX;
188	mMeshBounds.minY = mesh.mMeshBounds.minY;
189	mMeshBounds.minZ = mesh.mMeshBounds.minZ;
190	mMeshBounds.radius = mesh.mMeshBounds.radius;
191	mMeshBounds.scaleFactor = mesh.mMeshBounds.scaleFactor;
192
193	// For each submesh.
194	for(size_t i = 0; i < mesh.mSubMeshCount; i++)
195	{
196	mSubMesh[i].mSharedVertexBuffer = mesh.mSubMesh[i].mSharedVertexBuffer; //.false;
197	mSubMesh[i].mVertexBuffer = new Geometry::VertexBuffer();
198	mSubMesh[i].mVertexBuffer->mPosition = new Geometry::Vector3[mesh.mSubMesh[i].mVertexBuffer->mVertexCount];
199	mSubMesh[i].mVertexBuffer->mNormal = new Geometry::Vector3[mesh.mSubMesh[i].mVertexBuffer->mVertexCount];
200	mSubMesh[i].mVertexBuffer->mTexCoords = new Geometry::Vector2[mesh.mSubMesh[i].mVertexBuffer->mVertexCount];
201	mSubMesh[i].mVertexBuffer->mVertexCount = mesh.mSubMesh[i].mVertexBuffer->mVertexCount;
202	mSubMesh[i].mVertexBuffer->mVertexInfo = mesh.mSubMesh[i].mVertexBuffer->mVertexInfo;
203	mSubMesh[i].mType = mesh.mSubMesh[i].mType;
204	strcpy(mSubMesh[i].mMaterialName,mesh.mSubMesh[i].mMaterialName);
205
206	if (mesh.mSubMesh[i].mSharedVertexBuffer && !copied)
207	{
208	mVertexBuffer = mSubMesh[i].mVertexBuffer;
209	copied = true;
210	}
211
212	for(size_t s = 0; s < mesh.mSubMesh[i].mVertexBuffer->mVertexCount; s++)
213	{
214	mSubMesh[i].mVertexBuffer->mPosition[s].x = mesh.mSubMesh[i].mVertexBuffer->mPosition[s].x;
215	mSubMesh[i].mVertexBuffer->mPosition[s].y = mesh.mSubMesh[i].mVertexBuffer->mPosition[s].y;
216	mSubMesh[i].mVertexBuffer->mPosition[s].z = mesh.mSubMesh[i].mVertexBuffer->mPosition[s].z;
217
218	if (mesh.mSubMesh[i].mVertexBuffer->mVertexInfo & Geometry::VERTEX_NORMAL)
219	{
220	mSubMesh[i].mVertexBuffer->mNormal[s].x = mesh.mSubMesh[i].mVertexBuffer->mNormal[s].x;
221	mSubMesh[i].mVertexBuffer->mNormal[s].y = mesh.mSubMesh[i].mVertexBuffer->mNormal[s].y;
222	mSubMesh[i].mVertexBuffer->mNormal[s].z = mesh.mSubMesh[i].mVertexBuffer->mNormal[s].z;
223	}
224
225	if (mesh.mSubMesh[i].mVertexBuffer->mVertexInfo & Geometry::VERTEX_TEXCOORDS)
226	{
227	mSubMesh[i].mVertexBuffer->mTexCoords[s].x = mesh.mSubMesh[i].mVertexBuffer->mTexCoords[s].x;
228	mSubMesh[i].mVertexBuffer->mTexCoords[s].y = mesh.mSubMesh[i].mVertexBuffer->mTexCoords[s].y;
229	}
230	}
231
232	// Copy indices.
233	mSubMesh[i].mIndexCount = mesh.mSubMesh[i].mIndexCount;
234	mSubMesh[i].mIndex = new Index[mSubMesh[i].mIndexCount];
235
236	memcpy( mSubMesh[i].mIndex,
237	mesh.mSubMesh[i].mIndex,
238	mesh.mSubMesh[i].mIndexCount*sizeof(Geometry::Index));
239
240	// Copy strips.
241	__w64 offset = 0;
242	mSubMesh[i].mStripCount = mesh.mSubMesh[i].mStripCount;
243
244	if (mesh.mSubMesh[i].mStripCount > 0)
245	{
246	mSubMesh[i].mStrip = new Index*[mesh.mSubMesh[i].mStripCount];
247
248	offset = &(mSubMesh[i].mIndex[0])
249	-
250	&(mesh.mSubMesh[i].mIndex[0]);
251
252	for (size_t j = 0; j < mesh.mSubMesh[i].mStripCount; j++)
253	{
254	mSubMesh[i].mStrip[j] = mesh.mSubMesh[i].mStrip[j] + offset;
255	}
256	}
257
258	// Copy submesh bones.
259	if (!mesh.mSubMesh[i].mBones.empty())
260	{
261	for (unsigned int j = 0; j < mesh.mSubMesh[i].mBones.size(); j++)
262	{
263	mSubMesh[i].mBones.push_back(mesh.mSubMesh[i].mBones[j]);
264	}
265	}
266	}
267
268	// Copy skeleton name.
269	if (mesh.hasSkeleton)
270	{
271	hasSkeleton = true;
272
273	strcpy(mSkeletonName, mesh.mSkeletonName);
274	}
275
276	// Copy mesh bones.
277	if (!mesh.mBones.empty())
278	{
279	for (unsigned int j = 0; j < mesh.mBones.size(); j++)
280	{
281	mBones.push_back(mesh.mBones[j]);
282	}
283	}
284
285	return *this;
286	}
287
288	//---------------------------------------------------------------------------
289	// Load mesh.
290	//---------------------------------------------------------------------------
291	void Mesh::Load(Serializer &s)
292	{
293	bool sharedVertexBuffer = false;
294
295	// Clear Data.
296	delete [] mSubMesh;
297
298	mSubMesh = 0;
299
300	delete mVertexBuffer;
301
302	mVertexBuffer = 0;
303	mSubMeshCount = 0;
304
305	s.ReadArray(&sharedVertexBuffer,1);
306
307	if (sharedVertexBuffer)
308	{
309	mVertexBuffer = new VertexBuffer;
310	mVertexBuffer->Load(s);
311	}
312
313	s.ReadArray(&mSubMeshCount, 1);
314
315	mSubMesh = new SubMesh[mSubMeshCount];
316
317	for(size_t i = 0; i < mSubMeshCount; i++)
318	{
319	mSubMesh[i].Load(s);
320
321	if (mSubMesh[i].mSharedVertexBuffer && sharedVertexBuffer)
322	{
323	mSubMesh[i].mVertexBuffer = mVertexBuffer;
324	}
325	}
326	}
327
328	//---------------------------------------------------------------------------
329	// Save mesh.
330	//---------------------------------------------------------------------------
331	void Mesh::Save(Serializer &s)
332	{
333	bool sharedVertexBuffer = (mVertexBuffer != 0);
334
335	s.WriteArray(&sharedVertexBuffer, 1);
336
337	if (sharedVertexBuffer)
338	{
339	mVertexBuffer->Save(s);
340	}
341
342	s.WriteArray(&mSubMeshCount,1);
343
344	for(size_t i = 0; i < mSubMeshCount; i++)
345	{
346	mSubMesh[i].Save(s);
347	}
348	}
349
350	//---------------------------------------------------------------------------
351	// Export to obj mesh.
352	//---------------------------------------------------------------------------
353	void Mesh::exportToOBJ(char *fileName)
354	{
355	std::ofstream obj(fileName);
356
357	obj << "begin" << std::endl;
358
359	// Vertices.
360	for (size_t i = 0; i < mSubMeshCount; i++)
361	{
362	for (size_t j = 0; j < mSubMesh[i].mVertexBuffer->mVertexCount; j++)
363	{
364	obj << "v "
365	<< mSubMesh[i].mVertexBuffer->mPosition[j].x
366	<< " "
367	<< mSubMesh[i].mVertexBuffer->mPosition[j].y
368	<< " "
369	<< mSubMesh[i].mVertexBuffer->mPosition[j].z
370	<< " "
371	<< std::endl;
372	}
373	}
374
375	// Faces.
376	for (size_t i = 0; i < mSubMeshCount; i++)
377	{
378	for (size_t j = 0; j < mSubMesh[i].mIndexCount; j = j + 3)
379	{
380	obj << "f "
381	<< mSubMesh[i].mIndex[j] + 1
382	<< " "
383	<< mSubMesh[i].mIndex[j + 1] + 1
384	<< " "
385	<< mSubMesh[i].mIndex[j + 2] + 1
386	<< std::endl;
387	}
388	}
389
390	obj << "end" << std::endl;
391
392	obj.close();
393	}
394
395	//---------------------------------------------------------------------------
396	// Transform to shared vertex mesh.
397	//---------------------------------------------------------------------------
398	Mesh *Mesh::toSharedVertex()
399	{
400	// Move all vertex to the shared vertex buffer.
401	Mesh *mesh = new Mesh();
402
403	if (mSubMesh[0].mSharedVertexBuffer)
404	{
405	mesh = this;
406
407	return mesh;
408	}
409
410	mesh->mVertexBuffer = new VertexBuffer();
411	mesh->mSubMeshCount = mSubMeshCount;
412	mesh->mSubMesh = new SubMesh[mSubMeshCount];
413
414	// Fill up bounding box settings.
415	mesh->mMeshBounds.maxX = mMeshBounds.maxX;
416	mesh->mMeshBounds.maxY = mMeshBounds.maxY;
417	mesh->mMeshBounds.maxZ = mMeshBounds.maxZ;
418	mesh->mMeshBounds.minX = mMeshBounds.minX;
419	mesh->mMeshBounds.minY = mMeshBounds.minY;
420	mesh->mMeshBounds.minZ = mMeshBounds.minZ;
421	mesh->mMeshBounds.radius = mMeshBounds.radius;
422	mesh->mMeshBounds.scaleFactor = mMeshBounds.scaleFactor;
423
424	// construcción de los submeshes
425	long int acumVerts = 0;
426
427	for (size_t i = 0; i < mesh->mSubMeshCount; i++)
428	{
429	mesh->mSubMesh[i].mSharedVertexBuffer = true;
430	mesh->mSubMesh[i].mVertexBuffer = mesh->mVertexBuffer;
431	mesh->mSubMesh[i].mStripCount = 0;
432	mesh->mSubMesh[i].mStrip = NULL;
433	mesh->mSubMesh[i].mType = mSubMesh[i].mType;
434
435	strcpy(mesh->mSubMesh[i].mMaterialName,mSubMesh[i].mMaterialName);
436
437	// Copy indices.
438	mesh->mSubMesh[i].mIndexCount = mSubMesh[i].mIndexCount;
439	mesh->mSubMesh[i].mIndex = new Index[mSubMesh[i].mIndexCount];
440
441	for (size_t j = 0; j < mSubMesh[i].mIndexCount; j++)
442	{
443	mesh->mSubMesh[i].mIndex[j] = mSubMesh[i].mIndex[j]+acumVerts;
444	}
445
446	acumVerts += long(mSubMesh[i].mVertexBuffer->mVertexCount);
447
448	// Copy strips.
449	int offset = 0;
450
451	mesh->mSubMesh[i].mStripCount = mSubMesh[i].mStripCount;
452
453	if (mSubMesh[i].mStripCount > 0)
454	{
455	mesh->mSubMesh[i].mStrip = new Index*[mSubMesh[i].mStripCount];
456
457	offset = int(&(mesh->mSubMesh[i].mIndex[0]) - &(mSubMesh[i].mIndex[0]));
458
459	for (size_t j = 0; j < mSubMesh[i].mStripCount; j++)
460	{
461	mesh->mSubMesh[i].mStrip[j] = mSubMesh[i].mStrip[j] + offset;
462	}
463	}
464	}
465
466	mesh->mVertexBuffer->mVertexCount = acumVerts;
467	mesh->mVertexBuffer->mVertexInfo = mSubMesh[0].mVertexBuffer->mVertexInfo;
468
469	mesh->mVertexBuffer->mPosition = new Vector3[mesh->mVertexBuffer->mVertexCount];
470	mesh->mVertexBuffer->mNormal = new Vector3[mesh->mVertexBuffer->mVertexCount];
471	mesh->mVertexBuffer->mTexCoords = new Vector2[mesh->mVertexBuffer->mVertexCount];
472
473	acumVerts = 0;
474
475	size_t newIndex;
476
477	for (size_t i = 0; i < mSubMeshCount; i++)
478	{
479	for (size_t j = 0; j < mSubMesh[i].mVertexBuffer->mVertexCount; j++)
480	{
481	newIndex = acumVerts + j;
482
483	mesh->mVertexBuffer->
484	mPosition[newIndex].x = mSubMesh[i].mVertexBuffer->
485	mPosition[j].x;
486
487	mesh->mVertexBuffer->
488	mPosition[newIndex].y = mSubMesh[i].mVertexBuffer->
489	mPosition[j].y;
490
491	mesh->mVertexBuffer->
492	mPosition[newIndex].z = mSubMesh[i].mVertexBuffer->
493	mPosition[j].z;
494
495	mesh->mVertexBuffer->
496	mNormal[newIndex].x = mSubMesh[i].mVertexBuffer->
497	mNormal[j].x;
498
499	mesh->mVertexBuffer->
500	mNormal[newIndex].y = mSubMesh[i].mVertexBuffer->
501	mNormal[j].y;
502
503	mesh->mVertexBuffer->
504	mNormal[newIndex].z = mSubMesh[i].mVertexBuffer->
505	mNormal[j].z;
506
507	mesh->mVertexBuffer->
508	mTexCoords[newIndex].x = mSubMesh[i].mVertexBuffer->
509	mTexCoords[j].x;
510
511	mesh->mVertexBuffer->
512	mTexCoords[newIndex].y = mSubMesh[i].mVertexBuffer->
513	mTexCoords[j].y;
514	}
515
516	acumVerts += long(mSubMesh[i].mVertexBuffer->mVertexCount);
517
518	// Copy submesh bones.
519	if (!mSubMesh[i].mBones.empty())
520	{
521	for (unsigned int j = 0; j < mSubMesh[i].mBones.size(); j++)
522	{
523	mesh->mSubMesh[i].mBones.push_back(mSubMesh[i].mBones[j]);
524	}
525	}
526
527	}
528
529	// Copy skeleton name.
530	if (hasSkeleton)
531	{
532	mesh->hasSkeleton = true;
533
534	strcpy(mesh->mSkeletonName,mSkeletonName);
535	}
536
537	// Copy mesh bones.
538	if (!mBones.empty())
539	{
540	for (unsigned int j = 0; j < mBones.size(); j++)
541	{
542	mesh->mBones.push_back(mBones[j]);
543	}
544	}
545
546	return mesh;
547	}
548

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