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source: GTP/trunk/Lib/Geom/shared/GTGeometry/src/GeoMesh.cpp @ 980

Revision 980, 16.7 KB checked in by gumbau, 19 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	//---------------------------------------------------------------------------
32	// Copy constructor.
33	//---------------------------------------------------------------------------
34	Mesh::Mesh(const Mesh &objmesh)
35	{
36	// constructor copia
37	mVertexBuffer = new VertexBuffer();
38	mSubMeshCount = objmesh.mSubMeshCount;
39	mSubMesh = new SubMesh[objmesh.mSubMeshCount];
40
41	// Fill up bounding box settings.
42	mMeshBounds.maxX = objmesh.mMeshBounds.maxX;
43	mMeshBounds.maxY = objmesh.mMeshBounds.maxY;
44	mMeshBounds.maxZ = objmesh.mMeshBounds.maxZ;
45	mMeshBounds.minX = objmesh.mMeshBounds.minX;
46	mMeshBounds.minY = objmesh.mMeshBounds.minY;
47	mMeshBounds.minZ = objmesh.mMeshBounds.minZ;
48	mMeshBounds.radius = objmesh.mMeshBounds.radius;
49	mMeshBounds.scaleFactor = objmesh.mMeshBounds.scaleFactor;
50
51	// For each submesh.
52	for(size_t i = 0; i < objmesh.mSubMeshCount; i++)
53	{
54	mSubMesh[i].mSharedVertexBuffer = false;
55	mSubMesh[i].mVertexBuffer = new VertexBuffer();
56	mSubMesh[i].mVertexBuffer->mPosition = new Vector3[objmesh.mSubMesh[i].mVertexBuffer->mVertexCount];
57	mSubMesh[i].mVertexBuffer->mNormal = new Vector3[objmesh.mSubMesh[i].mVertexBuffer->mVertexCount];
58	mSubMesh[i].mVertexBuffer->mTexCoords = new Vector2[objmesh.mSubMesh[i].mVertexBuffer->mVertexCount];
59	mSubMesh[i].mVertexBuffer->mVertexCount = objmesh.mSubMesh[i].mVertexBuffer->mVertexCount;
60	mSubMesh[i].mVertexBuffer->mVertexInfo = objmesh.mSubMesh[i].mVertexBuffer->mVertexInfo;
61	mSubMesh[i].mType = objmesh.mSubMesh[i].mType;
62	strcpy(mSubMesh[i].mMaterialName,objmesh.mSubMesh[i].mMaterialName);
63
64	if(objmesh.mSubMesh[i].mSharedVertexBuffer)
65	{
66	for(size_t s = 0;
67	s<objmesh.mSubMesh[i].mVertexBuffer->mVertexCount;
68	s++)
69	{
70	// Copy mPosition.
71	if (objmesh.mSubMesh[i].mVertexBuffer->mVertexInfo & VERTEX_POSITION)
72	{
73	mSubMesh[i].mVertexBuffer->mPosition[s].x = objmesh.mVertexBuffer->mPosition[s].x;
74	mSubMesh[i].mVertexBuffer->mPosition[s].y = objmesh.mVertexBuffer->mPosition[s].y;
75	mSubMesh[i].mVertexBuffer->mPosition[s].z = objmesh.mVertexBuffer->mPosition[s].z;
76	}
77
78	// Copy mNormal.
79	if (objmesh.mSubMesh[i].mVertexBuffer->mVertexInfo & VERTEX_NORMAL)
80	{
81	mSubMesh[i].mVertexBuffer->mNormal[s].x = objmesh.mVertexBuffer->mNormal[s].x;
82	mSubMesh[i].mVertexBuffer->mNormal[s].y = objmesh.mVertexBuffer->mNormal[s].y;
83	mSubMesh[i].mVertexBuffer->mNormal[s].z = objmesh.mVertexBuffer->mNormal[s].z;
84	}
85
86	// Copy mTexCoords.
87	if (objmesh.mSubMesh[i].mVertexBuffer->mVertexInfo & VERTEX_TEXCOORDS)
88	{
89	mSubMesh[i].mVertexBuffer->mTexCoords[s].x = objmesh.mVertexBuffer->mTexCoords[s].x;
90	mSubMesh[i].mVertexBuffer->mTexCoords[s].y = objmesh.mVertexBuffer->mTexCoords[s].y;
91	}
92	}
93	objmesh.mSubMesh[i].mSharedVertexBuffer = false;
94	}
95	else
96	{
97	for(size_t s = 0; s < objmesh.mSubMesh[i].mVertexBuffer->mVertexCount; s++)
98	{
99	// Copy mPosition.
100	if (objmesh.mSubMesh[i].mVertexBuffer->mVertexInfo & VERTEX_POSITION)
101	{
102	mSubMesh[i].mVertexBuffer->mPosition[s].x = objmesh.mSubMesh[i].mVertexBuffer->mPosition[s].x;
103	mSubMesh[i].mVertexBuffer->mPosition[s].y = objmesh.mSubMesh[i].mVertexBuffer->mPosition[s].y;
104	mSubMesh[i].mVertexBuffer->mPosition[s].z = objmesh.mSubMesh[i].mVertexBuffer->mPosition[s].z;
105	}
106
107	//Copiamos mNormal
108	if (objmesh.mSubMesh[i].mVertexBuffer->mVertexInfo & VERTEX_NORMAL)
109	{
110	mSubMesh[i].mVertexBuffer->mNormal[s].x = objmesh.mSubMesh[i].mVertexBuffer->mNormal[s].x;
111	mSubMesh[i].mVertexBuffer->mNormal[s].y = objmesh.mSubMesh[i].mVertexBuffer->mNormal[s].y;
112	mSubMesh[i].mVertexBuffer->mNormal[s].z = objmesh.mSubMesh[i].mVertexBuffer->mNormal[s].z;
113	}
114
115	//Copiamos mTexCoords
116	if (objmesh.mSubMesh[i].mVertexBuffer->mVertexInfo & VERTEX_TEXCOORDS)
117	{
118	mSubMesh[i].mVertexBuffer->mTexCoords[s].x = objmesh.mSubMesh[i].mVertexBuffer->mTexCoords[s].x;
119	mSubMesh[i].mVertexBuffer->mTexCoords[s].y = objmesh.mSubMesh[i].mVertexBuffer->mTexCoords[s].y;
120	}
121	}
122
123	}
124
125	// Copy indices.
126	mSubMesh[i].mIndexCount = objmesh.mSubMesh[i].mIndexCount;
127	mSubMesh[i].mIndex = new Index[mSubMesh[i].mIndexCount];
128
129	memcpy(mSubMesh[i].mIndex,objmesh.mSubMesh[i].mIndex,objmesh.mSubMesh[i].mIndexCount*sizeof(Index));
130
131	// Copy strips.
132	__w64 int offset = 0; // offset between memory positions.
133	mSubMesh[i].mStripCount=objmesh.mSubMesh[i].mStripCount;
134	if (objmesh.mSubMesh[i].mStripCount>0)
135	{
136	mSubMesh[i].mStrip = new Index*[objmesh.mSubMesh[i].mStripCount];
137
138	offset = &(mSubMesh[i].mIndex[0]) - &(objmesh.mSubMesh[i].mIndex[0]);
139	for (size_t j=0;j<objmesh.mSubMesh[i].mStripCount;j++)
140	{
141	mSubMesh[i].mStrip[j]=objmesh.mSubMesh[i].mStrip[j] + offset;
142	}
143	}
144
145	// Copy submesh bones.
146	if (!objmesh.mSubMesh[i].mBones.empty())
147	{
148	for (int j = 0; j < objmesh.mSubMesh[i].mBones.size(); j++)
149	{
150	mSubMesh[i].mBones.push_back(objmesh.mSubMesh[i].mBones[j]);
151	}
152	}
153	}
154
155	// Copy skeleton name.
156	if (objmesh.hasSkeleton)
157	{
158	hasSkeleton = true;
159
160	strcpy(mSkeletonName,objmesh.mSkeletonName);
161	}
162
163	// Copy mesh bones.
164	if (!objmesh.mBones.empty())
165	{
166	for (int j = 0; j < objmesh.mBones.size(); j++)
167	{
168	mBones.push_back(objmesh.mBones[j]);
169	}
170	}
171
172	}
173
174	//---------------------------------------------------------------------------
175	// Assignment operator.
176	//---------------------------------------------------------------------------
177	Mesh &Mesh::operator =(const Geometry::Mesh &objmesh)
178	{
179	// Operador de asignación
180	bool copiados = false; // indica si los vértices compartidos han sido copiados
181	mVertexBuffer = new VertexBuffer();
182	mSubMeshCount = objmesh.mSubMeshCount;
183	mSubMesh = new Geometry::SubMesh[objmesh.mSubMeshCount];
184
185	// Fill up bounding box settings.
186	mMeshBounds.maxX = objmesh.mMeshBounds.maxX;
187	mMeshBounds.maxY = objmesh.mMeshBounds.maxY;
188	mMeshBounds.maxZ = objmesh.mMeshBounds.maxZ;
189	mMeshBounds.minX = objmesh.mMeshBounds.minX;
190	mMeshBounds.minY = objmesh.mMeshBounds.minY;
191	mMeshBounds.minZ = objmesh.mMeshBounds.minZ;
192	mMeshBounds.radius = objmesh.mMeshBounds.radius;
193	mMeshBounds.scaleFactor = objmesh.mMeshBounds.scaleFactor;
194
195	// For each submesh.
196	for(size_t i = 0; i < objmesh.mSubMeshCount; i++)
197	{
198	mSubMesh[i].mSharedVertexBuffer = objmesh.mSubMesh[i].mSharedVertexBuffer; //.false;
199	mSubMesh[i].mVertexBuffer = new Geometry::VertexBuffer();
200	mSubMesh[i].mVertexBuffer->mPosition = new Geometry::Vector3[objmesh.mSubMesh[i].mVertexBuffer->mVertexCount];
201	mSubMesh[i].mVertexBuffer->mNormal = new Geometry::Vector3[objmesh.mSubMesh[i].mVertexBuffer->mVertexCount];
202	mSubMesh[i].mVertexBuffer->mTexCoords = new Geometry::Vector2[objmesh.mSubMesh[i].mVertexBuffer->mVertexCount];
203	mSubMesh[i].mVertexBuffer->mVertexCount = objmesh.mSubMesh[i].mVertexBuffer->mVertexCount;
204	mSubMesh[i].mVertexBuffer->mVertexInfo = objmesh.mSubMesh[i].mVertexBuffer->mVertexInfo;
205	mSubMesh[i].mType = objmesh.mSubMesh[i].mType;
206	strcpy(mSubMesh[i].mMaterialName,objmesh.mSubMesh[i].mMaterialName);
207
208	if (objmesh.mSubMesh[i].mSharedVertexBuffer && !copiados)
209	{
210	mVertexBuffer = mSubMesh[i].mVertexBuffer;
211	copiados = true;
212	}
213
214	for(size_t s = 0; s < objmesh.mSubMesh[i].mVertexBuffer->mVertexCount; s++)
215	{
216	//Copiamos mPosition
217	//if (objmesh.mSubMesh[i].mVertexBuffer->mVertexInfo & Geometry::VERTEX_POSITION)
218	//{
219	mSubMesh[i].mVertexBuffer->mPosition[s].x = objmesh.mSubMesh[i].mVertexBuffer->mPosition[s].x;
220	mSubMesh[i].mVertexBuffer->mPosition[s].y = objmesh.mSubMesh[i].mVertexBuffer->mPosition[s].y;
221	mSubMesh[i].mVertexBuffer->mPosition[s].z = objmesh.mSubMesh[i].mVertexBuffer->mPosition[s].z;
222	//}
223	//Copiamos mNormal
224	if (objmesh.mSubMesh[i].mVertexBuffer->mVertexInfo & Geometry::VERTEX_NORMAL)
225	{
226	mSubMesh[i].mVertexBuffer->mNormal[s].x = objmesh.mSubMesh[i].mVertexBuffer->mNormal[s].x;
227	mSubMesh[i].mVertexBuffer->mNormal[s].y = objmesh.mSubMesh[i].mVertexBuffer->mNormal[s].y;
228	mSubMesh[i].mVertexBuffer->mNormal[s].z = objmesh.mSubMesh[i].mVertexBuffer->mNormal[s].z;
229	}
230
231	//Copiamos mTexCoords
232	if (objmesh.mSubMesh[i].mVertexBuffer->mVertexInfo & Geometry::VERTEX_TEXCOORDS)
233	{
234	mSubMesh[i].mVertexBuffer->mTexCoords[s].x = objmesh.mSubMesh[i].mVertexBuffer->mTexCoords[s].x;
235	mSubMesh[i].mVertexBuffer->mTexCoords[s].y = objmesh.mSubMesh[i].mVertexBuffer->mTexCoords[s].y;
236	}
237	}
238
239	// Copiar los indices
240	mSubMesh[i].mIndexCount = objmesh.mSubMesh[i].mIndexCount;
241	mSubMesh[i].mIndex = new Index[mSubMesh[i].mIndexCount];
242
243	memcpy( mSubMesh[i].mIndex,
244	objmesh.mSubMesh[i].mIndex,
245	objmesh.mSubMesh[i].mIndexCount*sizeof(Geometry::Index));
246
247	// Copiar las tiras
248	__w64 offset = 0; // desplazamiento entre posiciones de memoria.
249	mSubMesh[i].mStripCount = objmesh.mSubMesh[i].mStripCount;
250
251	if (objmesh.mSubMesh[i].mStripCount>0)
252	{
253	mSubMesh[i].mStrip = new Index*[objmesh.mSubMesh[i].mStripCount];
254	offset = &(mSubMesh[i].mIndex[0]) - &(objmesh.mSubMesh[i].mIndex[0]);
255
256	for (size_t j = 0; j < objmesh.mSubMesh[i].mStripCount; j++)
257	{
258	mSubMesh[i].mStrip[j] = objmesh.mSubMesh[i].mStrip[j] + offset;
259	}
260	}
261
262	// Copy submesh bones.
263	if (!objmesh.mSubMesh[i].mBones.empty())
264	{
265	for (int j = 0; j < objmesh.mSubMesh[i].mBones.size(); j++)
266	{
267	mSubMesh[i].mBones.push_back(objmesh.mSubMesh[i].mBones[j]);
268	}
269	}
270	}
271
272	// Copy skeleton name.
273	if (objmesh.hasSkeleton)
274	{
275	hasSkeleton = true;
276
277	strcpy(mSkeletonName,objmesh.mSkeletonName);
278	}
279
280	// Copy mesh bones.
281	if (!objmesh.mBones.empty())
282	{
283	for (int j = 0; j < objmesh.mBones.size(); j++)
284	{
285	mBones.push_back(objmesh.mBones[j]);
286	}
287	}
288
289	return *this;
290	}
291
292	//---------------------------------------------------------------------------
293	// Load mesh.
294	//---------------------------------------------------------------------------
295	void Mesh::Load(Serializer &s)
296	{
297	bool sharedVertexBuffer = false;
298
299	//Clear Data
300	delete[] mSubMesh; mSubMesh = 0;
301	delete mVertexBuffer; mVertexBuffer = 0;
302	mSubMeshCount = 0;
303
304	s.ReadArray(&sharedVertexBuffer,1);
305	if (sharedVertexBuffer)
306	{
307	mVertexBuffer = new VertexBuffer;
308	mVertexBuffer->Load(s);
309	}
310	s.ReadArray(&mSubMeshCount,1);
311	mSubMesh = new SubMesh[mSubMeshCount];
312	for(size_t i = 0; i < mSubMeshCount; ++i)
313	{
314	mSubMesh[i].Load(s);
315	if (mSubMesh[i].mSharedVertexBuffer && sharedVertexBuffer)
316	{
317	mSubMesh[i].mVertexBuffer = mVertexBuffer;
318	}
319	}
320	}
321
322	//---------------------------------------------------------------------------
323	// Save mesh.
324	//---------------------------------------------------------------------------
325	void Mesh::Save(Serializer &s)
326	{
327	bool sharedVertexBuffer = (mVertexBuffer != 0);
328	s.WriteArray(&sharedVertexBuffer, 1);
329	if (sharedVertexBuffer)
330	{
331	mVertexBuffer->Save(s);
332	}
333	s.WriteArray(&mSubMeshCount,1);
334	for(size_t i = 0; i < mSubMeshCount; ++i)
335	{
336	mSubMesh[i].Save(s);
337	}
338	}
339
340	//---------------------------------------------------------------------------
341	// Export to obj mesh.
342	//---------------------------------------------------------------------------
343	void Mesh::exportToOBJ(char *nomfich)
344	{
345	// Genera un fichero obj con vértices, triángulos
346
347	std::ofstream obj(nomfich);
348	obj << "begin" << std::endl;
349	// Vértices
350	for (size_t i=0; i < mSubMeshCount; i++)
351	{
352	for (size_t j=0; j < mSubMesh[i].mVertexBuffer->mVertexCount; j++)
353	{
354	obj << "v " << mSubMesh[i].mVertexBuffer->mPosition[j].x << " " <<
355	mSubMesh[i].mVertexBuffer->mPosition[j].y << " " <<
356	mSubMesh[i].mVertexBuffer->mPosition[j].z << " " << std::endl;
357	}
358	}
359
360
361	// Caras
362	for (size_t i=0; i < mSubMeshCount; i++)
363	{
364	for (size_t j=0; j < mSubMesh[i].mIndexCount; j=j+3)
365	{
366	obj << "f " << mSubMesh[i].mIndex[j]+1 << " " <<
367	mSubMesh[i].mIndex[j+1]+1 << " " <<
368	mSubMesh[i].mIndex[j+2]+1 << std::endl;
369	}
370	}
371
372	obj << "end" << std::endl;
373	obj.close();
374	}
375
376	//---------------------------------------------------------------------------
377	// Transform to shared vertex mesh.
378	//---------------------------------------------------------------------------
379	Mesh *Mesh::toSharedVertex()
380	{
381
382	// Move all vertex to the shared vertex buffer.
383	Mesh *mesh = new Mesh();
384
385	if (mSubMesh[0].mSharedVertexBuffer)
386	{
387	mesh = this;
388
389	return mesh;
390	}
391
392	mesh->mVertexBuffer = new VertexBuffer();
393	mesh->mSubMeshCount = mSubMeshCount;
394
395	// Reserva memoria para los submeshes
396	mesh->mSubMesh = new SubMesh[mSubMeshCount];
397
398	// Fill up bounding box settings.
399	mesh->mMeshBounds.maxX = mMeshBounds.maxX;
400	mesh->mMeshBounds.maxY = mMeshBounds.maxY;
401	mesh->mMeshBounds.maxZ = mMeshBounds.maxZ;
402	mesh->mMeshBounds.minX = mMeshBounds.minX;
403	mesh->mMeshBounds.minY = mMeshBounds.minY;
404	mesh->mMeshBounds.minZ = mMeshBounds.minZ;
405	mesh->mMeshBounds.radius = mMeshBounds.radius;
406	mesh->mMeshBounds.scaleFactor = mMeshBounds.scaleFactor;
407
408	// construcción de los submeshes
409	long int acumVerts = 0;
410
411	for (size_t i = 0; i < mesh->mSubMeshCount; i++)
412	{
413	mesh->mSubMesh[i].mSharedVertexBuffer = true;
414	mesh->mSubMesh[i].mVertexBuffer = mesh->mVertexBuffer;
415	mesh->mSubMesh[i].mStripCount = 0;
416	mesh->mSubMesh[i].mStrip = NULL;
417	mesh->mSubMesh[i].mType = mSubMesh[i].mType;
418
419	strcpy(mesh->mSubMesh[i].mMaterialName,mSubMesh[i].mMaterialName);
420
421	// copiar los índices
422	mesh->mSubMesh[i].mIndexCount = mSubMesh[i].mIndexCount;
423	mesh->mSubMesh[i].mIndex = new Index[mSubMesh[i].mIndexCount];
424
425	for (size_t j = 0; j < mSubMesh[i].mIndexCount; j++)
426	{
427	mesh->mSubMesh[i].mIndex[j] = mSubMesh[i].mIndex[j]+acumVerts;
428	}
429
430	acumVerts += mSubMesh[i].mVertexBuffer->mVertexCount;
431
432	// Copiar las tiras
433	int offset = 0; // desplazamiento entre posiciones de memoria.
434
435	mesh->mSubMesh[i].mStripCount = mSubMesh[i].mStripCount;
436
437	if (mSubMesh[i].mStripCount > 0)
438	{
439	mesh->mSubMesh[i].mStrip = new Index*[mSubMesh[i].mStripCount];
440
441	offset = &(mesh->mSubMesh[i].mIndex[0]) - &(mSubMesh[i].mIndex[0]);
442
443	for (size_t j = 0; j < mSubMesh[i].mStripCount; j++)
444	{
445	mesh->mSubMesh[i].mStrip[j] = mSubMesh[i].mStrip[j] + offset;
446	}
447	}
448	}
449
450	mesh->mVertexBuffer->mVertexCount = acumVerts;
451	mesh->mVertexBuffer->mVertexInfo = mSubMesh[0].mVertexBuffer->mVertexInfo;
452
453	mesh->mVertexBuffer->mPosition = new Vector3[mesh->mVertexBuffer->mVertexCount];
454	mesh->mVertexBuffer->mNormal = new Vector3[mesh->mVertexBuffer->mVertexCount];
455	mesh->mVertexBuffer->mTexCoords = new Vector2[mesh->mVertexBuffer->mVertexCount];
456
457	// copiar los vértices
458	acumVerts = 0;
459
460	size_t newIndex;
461
462	for (size_t i = 0; i < mSubMeshCount; i++)
463	{
464	for(size_t j = 0; j < mSubMesh[i].mVertexBuffer->mVertexCount; j++)
465	{
466	newIndex = acumVerts + j;
467
468	mesh->mVertexBuffer->
469	mPosition[newIndex].x = mSubMesh[i].mVertexBuffer->
470	mPosition[j].x;
471
472	mesh->mVertexBuffer->
473	mPosition[newIndex].y = mSubMesh[i].mVertexBuffer->
474	mPosition[j].y;
475
476	mesh->mVertexBuffer->
477	mPosition[newIndex].z = mSubMesh[i].mVertexBuffer->
478	mPosition[j].z;
479
480	mesh->mVertexBuffer->
481	mNormal[newIndex].x = mSubMesh[i].mVertexBuffer->
482	mNormal[j].x;
483
484	mesh->mVertexBuffer->
485	mNormal[newIndex].y = mSubMesh[i].mVertexBuffer->
486	mNormal[j].y;
487
488	mesh->mVertexBuffer->
489	mNormal[newIndex].z = mSubMesh[i].mVertexBuffer->
490	mNormal[j].z;
491
492	mesh->mVertexBuffer->
493	mTexCoords[newIndex].x = mSubMesh[i].mVertexBuffer->
494	mTexCoords[j].x;
495
496	mesh->mVertexBuffer->
497	mTexCoords[newIndex].y = mSubMesh[i].mVertexBuffer->
498	mTexCoords[j].y;
499	}
500
501	acumVerts += mSubMesh[i].mVertexBuffer->mVertexCount;
502	}
503
504	return mesh;
505	}
506

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