//! reads a mesh sections and creates a mesh from it
IAnimatedMesh* CIrrMeshFileLoader::readMesh(io::IXMLReader* reader)
{
SAnimatedMesh* animatedmesh = new SAnimatedMesh();
SMesh* mesh = new SMesh();
animatedmesh->addMesh(mesh);
mesh->drop();
core::stringc bbSectionName = "boundingBox";
core::stringc bufferSectionName = "buffer";
core::stringc meshSectionName = "mesh";
if (!reader->isEmptyElement())
while(reader->read())
{
if (reader->getNodeType() == io::EXN_ELEMENT)
{
const wchar_t* nodeName = reader->getNodeName();
if (bbSectionName == nodeName)
{
// inside a bounding box, ignore it for now because
// we are calculating this anyway ourselves later.
}
else
if (bufferSectionName == nodeName)
{
// we've got a mesh buffer
IMeshBuffer* buffer = readMeshBuffer(reader);
if (buffer)
{
mesh->addMeshBuffer(buffer);
buffer->drop();
}
}
else
skipSection(reader, true); // unknown section
} // end if node type is element
else
if (reader->getNodeType() == io::EXN_ELEMENT_END)
{
if (meshSectionName == reader->getNodeName())
{
// end of mesh section reached, cancel out
break;
}
}
} // end while reader->read();
mesh->recalculateBoundingBox();
animatedmesh->recalculateBoundingBox();
return animatedmesh;
}
//! reads a mesh sections and creates a mesh buffer from it
IMeshBuffer* CIrrMeshFileLoader::readMeshBuffer(io::IXMLReader* reader)
{
CDynamicMeshBuffer* buffer = 0;
core::stringc verticesSectionName = "vertices";
core::stringc bbSectionName = "boundingBox";
core::stringc materialSectionName = "material";
core::stringc indicesSectionName = "indices";
core::stringc bufferSectionName = "buffer";
bool insideVertexSection = false;
bool insideIndexSection = false;
int vertexCount = 0;
int indexCount = 0;
video::SMaterial material;
if (!reader->isEmptyElement())
while(reader->read())
{
if (reader->getNodeType() == io::EXN_ELEMENT)
{
const wchar_t* nodeName = reader->getNodeName();
if (bbSectionName == nodeName)
{
// inside a bounding box, ignore it for now because
// we are calculating this anyway ourselves later.
}
else
if (materialSectionName == nodeName)
{
//we've got a material
io::IAttributes* attributes = FileSystem->createEmptyAttributes(SceneManager->getVideoDriver());
attributes->read(reader, true, L"material");
SceneManager->getVideoDriver()->fillMaterialStructureFromAttributes(material, attributes);
attributes->drop();
}
else
if (verticesSectionName == nodeName)
{
// vertices section
const core::stringc vertexTypeName1 = "standard";
const core::stringc vertexTypeName2 = "2tcoords";
const core::stringc vertexTypeName3 = "tangents";
const wchar_t* vertexType = reader->getAttributeValue(L"type");
vertexCount = reader->getAttributeValueAsInt(L"vertexCount");
insideVertexSection = true;
video::E_INDEX_TYPE itype = (vertexCount > 65536)?irr::video::EIT_32BIT:irr::video::EIT_16BIT;
if (vertexTypeName1 == vertexType)
{
buffer = new CDynamicMeshBuffer(irr::video::EVT_STANDARD, itype);
}
else
if (vertexTypeName2 == vertexType)
{
buffer = new CDynamicMeshBuffer(irr::video::EVT_2TCOORDS, itype);
}
else
if (vertexTypeName3 == vertexType)
{
buffer = new CDynamicMeshBuffer(irr::video::EVT_TANGENTS, itype);
}
buffer->getVertexBuffer().reallocate(vertexCount);
buffer->Material = material;
}
else
if (indicesSectionName == nodeName)
{
// indices section
indexCount = reader->getAttributeValueAsInt(L"indexCount");
insideIndexSection = true;
}
} // end if node type is element
else
if (reader->getNodeType() == io::EXN_TEXT)
{
// read vertex data
if (insideVertexSection)
{
readMeshBuffer(reader, vertexCount, buffer);
insideVertexSection = false;
} // end reading vertex array
else
if (insideIndexSection)
{
readIndices(reader, indexCount, buffer->getIndexBuffer());
insideIndexSection = false;
}
} // end if node type is text
else
if (reader->getNodeType() == io::EXN_ELEMENT_END)
{
if (bufferSectionName == reader->getNodeName())
{
// end of buffer section reached, cancel out
break;
}
}
} // end while reader->read();
if (buffer)
buffer->recalculateBoundingBox();
return buffer;
}
//! reads a mesh sections and creates a mesh buffer from it
IMeshBuffer* CIrrMeshFileLoader::readMeshBuffer(io::IXMLReader* reader)
{
IMeshBuffer* buffer = 0;
SMeshBuffer* sbuffer1 = 0;
SMeshBufferLightMap* sbuffer2 = 0;
SMeshBufferTangents* sbuffer3 = 0;
core::stringc verticesSectionName = "vertices";
core::stringc bbSectionName = "boundingBox";
core::stringc materialSectionName = "material";
core::stringc indicesSectionName = "indices";
core::stringc bufferSectionName = "buffer";
bool insideVertexSection = false;
bool insideIndexSection = false;
int vertexCount = 0;
int indexCount = 0;
video::SMaterial material;
if (!reader->isEmptyElement())
while(reader->read())
{
if (reader->getNodeType() == io::EXN_ELEMENT)
{
const wchar_t* nodeName = reader->getNodeName();
if (bbSectionName == nodeName)
{
// inside a bounding box, ignore it for now because
// we are calculating this anyway ourselves later.
}
else
if (materialSectionName == nodeName)
{
//we've got a material
io::IAttributes* attributes = FileSystem->createEmptyAttributes(SceneManager->getVideoDriver());
attributes->read(reader, true, L"material");
SceneManager->getVideoDriver()->fillMaterialStructureFromAttributes(material, attributes);
attributes->drop();
}
else
if (verticesSectionName == nodeName)
{
// vertices section
core::stringc vertexTypeName1 = "standard";
core::stringc vertexTypeName2 = "2tcoords";
core::stringc vertexTypeName3 = "tangents";
const wchar_t* vertexType = reader->getAttributeValue(L"type");
vertexCount = reader->getAttributeValueAsInt(L"vertexCount");
insideVertexSection = true;
if (vertexTypeName1 == vertexType)
{
sbuffer1 = new SMeshBuffer();
sbuffer1->Vertices.reallocate(vertexCount);
sbuffer1->Material = material;
buffer = sbuffer1;
}
else
if (vertexTypeName2 == vertexType)
{
sbuffer2 = new SMeshBufferLightMap();
sbuffer2->Vertices.reallocate(vertexCount);
sbuffer2->Material = material;
buffer = sbuffer2;
}
else
if (vertexTypeName3 == vertexType)
{
sbuffer3 = new SMeshBufferTangents();
sbuffer3->Vertices.reallocate(vertexCount);
sbuffer3->Material = material;
buffer = sbuffer3;
}
}
else
if (indicesSectionName == nodeName)
{
// indices section
indexCount = reader->getAttributeValueAsInt(L"indexCount");
insideIndexSection = true;
}
} // end if node type is element
else
if (reader->getNodeType() == io::EXN_TEXT)
{
// read vertex data
if (insideVertexSection)
{
if (sbuffer1)
readMeshBuffer(reader, vertexCount, sbuffer1);
else
if (sbuffer2)
readMeshBuffer(reader, vertexCount, sbuffer2);
else
if (sbuffer3)
readMeshBuffer(reader, vertexCount, sbuffer3);
insideVertexSection = false;
} // end reading vertex array
else
if (insideIndexSection)
{
if (sbuffer1)
readIndices(reader, indexCount, sbuffer1->Indices);
else
if (sbuffer2)
readIndices(reader, indexCount, sbuffer2->Indices);
else
if (sbuffer3)
readIndices(reader, indexCount, sbuffer3->Indices);
insideIndexSection = false;
}
} // end if node type is text
else
if (reader->getNodeType() == io::EXN_ELEMENT_END)
{
if (bufferSectionName == reader->getNodeName())
{
// end of buffer section reached, cancel out
break;
}
}
} // end while reader->read();
if (buffer)
buffer->recalculateBoundingBox();
return buffer;
}
