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more Bullet serialization (uncompleted triangle mesh saving, work-in-progress)

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erwin.coumans
2010-01-23 02:13:25 +00:00
parent 5378cf4c8a
commit 5e85d43b0b
5 changed files with 240 additions and 2 deletions
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139
src/BulletCollision/CollisionShapes/btStridingMeshInterface.cpp
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@@ -14,6 +14,7 @@ subject to the following restrictions:
*/
#include "btStridingMeshInterface.h"
#include "LinearMath/btSerializer.h"
btStridingMeshInterface::~btStridingMeshInterface()
{
@@ -179,3 +180,141 @@ void btStridingMeshInterface::calculateAabbBruteForce(btVector3& aabbMin,btVecto
aabbMin = aabbCallback.m_aabbMin;
aabbMax = aabbCallback.m_aabbMax;
}
///fills the dataBuffer and returns the struct name (and 0 on failure)
const char* btStridingMeshInterface::serialize(void* dataBuffer, btSerializer* serializer) const
{
btStridingMeshInterfaceData* trimeshData = (btStridingMeshInterfaceData*) dataBuffer;
trimeshData->m_numMeshParts = getNumSubParts();
void* uniquePtr = 0;
trimeshData->m_meshPartsPtr = trimeshData->m_numMeshParts ? (btMeshPartData*) uniquePtr : 0;
if (trimeshData->m_numMeshParts)
{
btChunk* chunk = serializer->allocate(sizeof(btMeshPartData),trimeshData->m_numMeshParts);
btMeshPartData* memPtr = (btMeshPartData*)chunk->m_oldPtr;
int numtotalphysicsverts = 0;
int part,graphicssubparts = getNumSubParts();
const unsigned char * vertexbase;
const unsigned char * indexbase;
int indexstride;
PHY_ScalarType type;
PHY_ScalarType gfxindextype;
int stride,numverts,numtriangles;
int gfxindex;
btVector3 triangle[3];
btVector3 meshScaling = getScaling();
///if the number of parts is big, the performance might drop due to the innerloop switch on indextype
for (part=0;part<graphicssubparts ;part++)
{
getLockedReadOnlyVertexIndexBase(&vertexbase,numverts,type,stride,&indexbase,indexstride,numtriangles,gfxindextype,part);
memPtr->m_numTriangles = numtriangles;//indices = 3*numtriangles
memPtr->m_numVertices = numverts;
switch (type)
{
case PHY_FLOAT:
{
float* graphicsbase;
switch (gfxindextype)
{
case PHY_INTEGER:
{
for (gfxindex=0;gfxindex<numtriangles;gfxindex++)
{
unsigned int* tri_indices= (unsigned int*)(indexbase+gfxindex*indexstride);
graphicsbase = (float*)(vertexbase+tri_indices[0]*stride);
triangle[0].setValue(graphicsbase[0]*meshScaling.getX(),graphicsbase[1]*meshScaling.getY(),graphicsbase[2]*meshScaling.getZ());
graphicsbase = (float*)(vertexbase+tri_indices[1]*stride);
triangle[1].setValue(graphicsbase[0]*meshScaling.getX(),graphicsbase[1]*meshScaling.getY(), graphicsbase[2]*meshScaling.getZ());
graphicsbase = (float*)(vertexbase+tri_indices[2]*stride);
triangle[2].setValue(graphicsbase[0]*meshScaling.getX(),graphicsbase[1]*meshScaling.getY(), graphicsbase[2]*meshScaling.getZ());
}
break;
}
case PHY_SHORT:
{
for (gfxindex=0;gfxindex<numtriangles;gfxindex++)
{
unsigned short int* tri_indices= (unsigned short int*)(indexbase+gfxindex*indexstride);
graphicsbase = (float*)(vertexbase+tri_indices[0]*stride);
triangle[0].setValue(graphicsbase[0]*meshScaling.getX(),graphicsbase[1]*meshScaling.getY(),graphicsbase[2]*meshScaling.getZ());
graphicsbase = (float*)(vertexbase+tri_indices[1]*stride);
triangle[1].setValue(graphicsbase[0]*meshScaling.getX(),graphicsbase[1]*meshScaling.getY(), graphicsbase[2]*meshScaling.getZ());
graphicsbase = (float*)(vertexbase+tri_indices[2]*stride);
triangle[2].setValue(graphicsbase[0]*meshScaling.getX(),graphicsbase[1]*meshScaling.getY(), graphicsbase[2]*meshScaling.getZ());
}
break;
}
default:
btAssert((gfxindextype == PHY_INTEGER) || (gfxindextype == PHY_SHORT));
}
break;
}
case PHY_DOUBLE:
{
double* graphicsbase;
switch (gfxindextype)
{
case PHY_INTEGER:
{
for (gfxindex=0;gfxindex<numtriangles;gfxindex++)
{
unsigned int* tri_indices= (unsigned int*)(indexbase+gfxindex*indexstride);
graphicsbase = (double*)(vertexbase+tri_indices[0]*stride);
triangle[0].setValue((btScalar)graphicsbase[0]*meshScaling.getX(),(btScalar)graphicsbase[1]*meshScaling.getY(),(btScalar)graphicsbase[2]*meshScaling.getZ());
graphicsbase = (double*)(vertexbase+tri_indices[1]*stride);
triangle[1].setValue((btScalar)graphicsbase[0]*meshScaling.getX(),(btScalar)graphicsbase[1]*meshScaling.getY(), (btScalar)graphicsbase[2]*meshScaling.getZ());
graphicsbase = (double*)(vertexbase+tri_indices[2]*stride);
triangle[2].setValue((btScalar)graphicsbase[0]*meshScaling.getX(),(btScalar)graphicsbase[1]*meshScaling.getY(), (btScalar)graphicsbase[2]*meshScaling.getZ());
}
break;
}
case PHY_SHORT:
{
for (gfxindex=0;gfxindex<numtriangles;gfxindex++)
{
unsigned short int* tri_indices= (unsigned short int*)(indexbase+gfxindex*indexstride);
graphicsbase = (double*)(vertexbase+tri_indices[0]*stride);
triangle[0].setValue((btScalar)graphicsbase[0]*meshScaling.getX(),(btScalar)graphicsbase[1]*meshScaling.getY(),(btScalar)graphicsbase[2]*meshScaling.getZ());
graphicsbase = (double*)(vertexbase+tri_indices[1]*stride);
triangle[1].setValue((btScalar)graphicsbase[0]*meshScaling.getX(),(btScalar)graphicsbase[1]*meshScaling.getY(), (btScalar)graphicsbase[2]*meshScaling.getZ());
graphicsbase = (double*)(vertexbase+tri_indices[2]*stride);
triangle[2].setValue((btScalar)graphicsbase[0]*meshScaling.getX(),(btScalar)graphicsbase[1]*meshScaling.getY(), (btScalar)graphicsbase[2]*meshScaling.getZ());
}
break;
}
default:
btAssert((gfxindextype == PHY_INTEGER) || (gfxindextype == PHY_SHORT));
}
break;
}
default:
btAssert((type == PHY_FLOAT) || (type == PHY_DOUBLE));
}
unLockReadOnlyVertexBase(part);
}
serializer->finalizeChunk(chunk,"btMeshPartData",BT_ARRAY_CODE,uniquePtr);
}
m_scaling.serialize(trimeshData->m_scaling);
return "btStridingMeshInterfaceData";
}