//-----------------------------------------------------------------------------
CPUTResult CPUTModel::LoadModelPayload(const cString &File)
{
CPUTResult result = CPUT_SUCCESS;
std::ifstream file(File.c_str(), std::ios::in | std::ios::binary);
ASSERT( !file.fail(), _L("CPUTModelDX11::LoadModelPayload() - Could not find binary model file: ") + File );
// set up for mesh creation loop
UINT meshIndex = 0;
while(file.good() && !file.eof())
{
// TODO: rearrange while() to avoid if(eof). Should perform only one branch per loop iteration, not two
CPUTRawMeshData vertexFormatDesc;
vertexFormatDesc.Read(file);
if(file.eof())
{
// TODO: Wtf? Why would we get here? We check eof at the top of loop. If it isn't eof there, why is it eof here?
break;
}
ASSERT( meshIndex < mMeshCount, _L("Actual mesh count doesn't match stated mesh count"));
// create the mesh.
CPUTMesh *pMesh = mpMesh[meshIndex];
// always a triangle list (at this point)
pMesh->SetMeshTopology(CPUT_TOPOLOGY_INDEXED_TRIANGLE_LIST);
// get number of data blocks in the vertex element (pos,norm,uv,etc)
// YUCK! TODO: Use fixed-size array of elements
CPUTBufferInfo *pVertexElementInfo = new CPUTBufferInfo[vertexFormatDesc.mFormatDescriptorCount];
// pMesh->SetBounds(vertexFormatDesc.mBboxCenter, vertexFormatDesc.mBboxHalf);
// running count of each type of element
int positionStreamCount=0;
int normalStreamCount=0;
int texCoordStreamCount=0;
int tangentStreamCount=0;
int binormalStreamCount=0;
int colorStreamCount=0;
int RunningOffset = 0;
for(UINT ii=0; ii<vertexFormatDesc.mFormatDescriptorCount; ii++)
{
// lookup the CPUT data type equivalent
pVertexElementInfo[ii].mElementType = CPUT_FILE_ELEMENT_TYPE_TO_CPUT_TYPE_CONVERT[vertexFormatDesc.mpElements[ii].mVertexElementType];
ASSERT((pVertexElementInfo[ii].mElementType !=CPUT_UNKNOWN ) , _L(".MDL file load error. This model file has an unknown data type in it's model data."));
// calculate the number of elements in this stream block (i.e. F32F32F32 = 3xF32)
pVertexElementInfo[ii].mElementComponentCount = vertexFormatDesc.mpElements[ii].mElementSizeInBytes/CPUT_DATA_FORMAT_SIZE[pVertexElementInfo[ii].mElementType];
// store the size of each element type in bytes (i.e. 3xF32, each element = F32 = 4 bytes)
pVertexElementInfo[ii].mElementSizeInBytes = vertexFormatDesc.mpElements[ii].mElementSizeInBytes;
// store the number of elements (i.e. 3xF32, 3 elements)
pVertexElementInfo[ii].mElementCount = vertexFormatDesc.mVertexCount;
// calculate the offset from the first element of the stream - assumes all blocks appear in the vertex stream as the order that appears here
pVertexElementInfo[ii].mOffset = RunningOffset;
RunningOffset = RunningOffset + pVertexElementInfo[ii].mElementSizeInBytes;
// extract the name of stream
pVertexElementInfo[ii].mpSemanticName = CPUT_VERTEX_ELEMENT_SEMANTIC_AS_STRING[ii];
switch(vertexFormatDesc.mpElements[ii].mVertexElementSemantic)
{
case CPUT_VERTEX_ELEMENT_POSITON:
pVertexElementInfo[ii].mpSemanticName = "POSITION";
pVertexElementInfo[ii].mSemanticIndex = positionStreamCount++;
break;
case CPUT_VERTEX_ELEMENT_NORMAL:
pVertexElementInfo[ii].mpSemanticName = "NORMAL";
pVertexElementInfo[ii].mSemanticIndex = normalStreamCount++;
break;
case CPUT_VERTEX_ELEMENT_TEXTURECOORD:
pVertexElementInfo[ii].mpSemanticName = "TEXCOORD";
pVertexElementInfo[ii].mSemanticIndex = texCoordStreamCount++;
break;
case CPUT_VERTEX_ELEMENT_TANGENT:
pVertexElementInfo[ii].mpSemanticName = "TANGENT";
pVertexElementInfo[ii].mSemanticIndex = tangentStreamCount++;
break;
case CPUT_VERTEX_ELEMENT_BINORMAL:
pVertexElementInfo[ii].mpSemanticName = "BINORMAL";
pVertexElementInfo[ii].mSemanticIndex = binormalStreamCount++;
break;
case CPUT_VERTEX_ELEMENT_VERTEXCOLOR:
pVertexElementInfo[ii].mpSemanticName = "COLOR";
pVertexElementInfo[ii].mSemanticIndex = colorStreamCount++;
break;
default:
cString errorString = _L("Invalid vertex semantic in: '")+File+_L("'\n");
TRACE(errorString.c_str());
ASSERT(0, errorString);
}
}
// Index buffer
CPUTBufferInfo indexDataInfo;
indexDataInfo.mElementType = (vertexFormatDesc.mIndexType == tUINT32) ? CPUT_U32 : CPUT_U16;
indexDataInfo.mElementComponentCount = 1;
indexDataInfo.mElementSizeInBytes = (vertexFormatDesc.mIndexType == tUINT32) ? sizeof(UINT32) : sizeof(UINT16);
indexDataInfo.mElementCount = vertexFormatDesc.mIndexCount;
indexDataInfo.mOffset = 0;
indexDataInfo.mSemanticIndex = 0;
indexDataInfo.mpSemanticName = NULL;
if( pVertexElementInfo->mElementCount && indexDataInfo.mElementCount )
{
result = pMesh->CreateNativeResources(
this,
meshIndex,
vertexFormatDesc.mFormatDescriptorCount,
pVertexElementInfo,
(void*)vertexFormatDesc.mpVertices,
&indexDataInfo,
&vertexFormatDesc.mpIndices[0]
);
if(CPUTFAILED(result))
{
return result;
}
// CC added
result = pMesh->ExtractVerticesandIndices();
if(CPUTFAILED(result))
{
return result;
}
// CC added ends
}
delete [] pVertexElementInfo;
pVertexElementInfo = NULL;
++meshIndex;
}
ASSERT( file.eof(), _L("") );
// close file
file.close();
return result;
}
//-----------------------------------------------------------------------------
CPUTResult CPUTModel::LoadModelPayload(const cString &FileName)
{
CPUTResult result = CPUT_SUCCESS;
CPUTFileSystem::CPUTOSifstream file(FileName, std::ios::in | std::ios::binary);
ASSERT( !file.fail(), _L("CPUTModel::LoadModelPayload() - Could not find binary model file: ") + FileName );
// set up for mesh creation loop
UINT meshIndex = 0;
while(file.good() && !file.eof())
{
// TODO: rearrange while() to avoid if(eof). Should perform only one branch per loop iteration, not two
CPUTRawMeshData vertexFormatDesc;
vertexFormatDesc.Read(file);
if(file.eof())
{
// TODO: Wtf? Why would we get here? We check eof at the top of loop. If it isn't eof there, why is it eof here?
break;
}
ASSERT( meshIndex < mMeshCount, _L("Actual mesh count doesn't match stated mesh count"));
// create the mesh.
CPUTMesh *pMesh = mpMesh[meshIndex];
// always a triangle list (at this point)
pMesh->SetMeshTopology(CPUT_TOPOLOGY_INDEXED_TRIANGLE_LIST);
// get number of data blocks in the vertex element (pos,norm,uv,etc)
CPUTBufferElementInfo *pVertexElementInfo = new CPUTBufferElementInfo[vertexFormatDesc.mFormatDescriptorCount];
// running count of each type of element
int positionStreamCount=0;
int normalStreamCount=0;
int texCoordStreamCount=0;
int tangentStreamCount=0;
int binormalStreamCount=0;
int colorStreamCount=0;
int blendWeightStreamCount = 0;
int blendIndexStreamCount = 0;
int runningOffset = 0;
for(UINT ii=0; ii<vertexFormatDesc.mFormatDescriptorCount; ii++)
{
// lookup the CPUT data type equivalent
pVertexElementInfo[ii].mElementType = CPUT_FILE_ELEMENT_TYPE_TO_CPUT_TYPE_CONVERT(vertexFormatDesc.mpElements[ii].mVertexElementType);
ASSERT((pVertexElementInfo[ii].mElementType !=CPUT_UNKNOWN ) , _L(".MDL file load error. This model file has an unknown data type in it's model data."));
// calculate the number of elements in this stream block (i.e. F32F32F32 = 3xF32)
pVertexElementInfo[ii].mElementComponentCount = vertexFormatDesc.mpElements[ii].mElementSizeInBytes/CPUT_DATA_FORMAT_SIZE[pVertexElementInfo[ii].mElementType];
// store the size of each element type in bytes (i.e. 3xF32, each element = F32 = 4 bytes)
pVertexElementInfo[ii].mElementSizeInBytes = vertexFormatDesc.mpElements[ii].mElementSizeInBytes;
// store the number of elements (i.e. 3xF32, 3 elements)
// calculate the offset from the first element of the stream - assumes all blocks appear in the vertex stream as the order that appears here
pVertexElementInfo[ii].mOffset = runningOffset;
runningOffset = runningOffset + pVertexElementInfo[ii].mElementSizeInBytes;
// extract the name of stream
pVertexElementInfo[ii].mpSemanticName = CPUT_VERTEX_ELEMENT_SEMANTIC_AS_STRING[ii];
//TODO: Calculate Opengl semantic index elsewhere
switch(vertexFormatDesc.mpElements[ii].mVertexElementSemantic)
{
//FIXME - this isn't right, and needs to change for DX and OpenGL
//Probably just need to move semantic bind point into OpenGL, or something.
//Currently, TEXCOORD is the only semantic with multiples in common use. Adding
//semantic index works provided addtional attributes (e.g. vertex color) are not
//present
case eCPUT_VERTEX_ELEMENT_SEMANTIC::CPUT_VERTEX_ELEMENT_POSITON:
pVertexElementInfo[ii].mpSemanticName = "POSITION";
pVertexElementInfo[ii].mSemanticIndex = positionStreamCount++;
pVertexElementInfo[ii].mBindPoint = CPUTSemanticBindPoint::POSITION;
break;
case eCPUT_VERTEX_ELEMENT_SEMANTIC::CPUT_VERTEX_ELEMENT_NORMAL:
pVertexElementInfo[ii].mpSemanticName = "NORMAL";
pVertexElementInfo[ii].mSemanticIndex = normalStreamCount++;
pVertexElementInfo[ii].mBindPoint = CPUTSemanticBindPoint::NORMAL;
break;
case eCPUT_VERTEX_ELEMENT_SEMANTIC::CPUT_VERTEX_ELEMENT_TEXTURECOORD:
pVertexElementInfo[ii].mpSemanticName = "TEXCOORD";
pVertexElementInfo[ii].mSemanticIndex = texCoordStreamCount++;
pVertexElementInfo[ii].mBindPoint = CPUTSemanticBindPoint::TEXCOORD + pVertexElementInfo[ii].mSemanticIndex;
break;
case eCPUT_VERTEX_ELEMENT_SEMANTIC::CPUT_VERTEX_ELEMENT_TANGENT:
pVertexElementInfo[ii].mpSemanticName = "TANGENT";
pVertexElementInfo[ii].mSemanticIndex = tangentStreamCount++;
pVertexElementInfo[ii].mBindPoint = CPUTSemanticBindPoint::TANGENT;
break;
case eCPUT_VERTEX_ELEMENT_SEMANTIC::CPUT_VERTEX_ELEMENT_BINORMAL:
pVertexElementInfo[ii].mpSemanticName = "BINORMAL";
pVertexElementInfo[ii].mSemanticIndex = binormalStreamCount++;
pVertexElementInfo[ii].mBindPoint = CPUTSemanticBindPoint::BINORMAL;
break;
case eCPUT_VERTEX_ELEMENT_SEMANTIC::CPUT_VERTEX_ELEMENT_VERTEXCOLOR:
pVertexElementInfo[ii].mpSemanticName = "COLOR";
pVertexElementInfo[ii].mSemanticIndex = colorStreamCount++;
pVertexElementInfo[ii].mBindPoint = CPUTSemanticBindPoint::COLOR;
break;
default:
cString errorString = _L("Invalid vertex semantic in: '")+FileName+_L("'\n");
TRACE(errorString.c_str());
ASSERT(0, errorString);
}
}
// Index buffer
CPUTBufferElementInfo indexDataInfo;
indexDataInfo.mElementType = (vertexFormatDesc.mIndexType == eCPUT_VERTEX_ELEMENT_TYPE::tUINT32) ? CPUT_U32 : CPUT_U16;
indexDataInfo.mElementComponentCount = 1;
indexDataInfo.mElementSizeInBytes = (vertexFormatDesc.mIndexType == eCPUT_VERTEX_ELEMENT_TYPE::tUINT32) ? sizeof(uint32_t) : sizeof(uint16_t);
indexDataInfo.mOffset = 0;
indexDataInfo.mSemanticIndex = 0;
indexDataInfo.mpSemanticName = NULL;
if( vertexFormatDesc.mVertexCount && vertexFormatDesc.mIndexCount )
{
result = pMesh->CreateNativeResources(
this,
meshIndex,
vertexFormatDesc.mFormatDescriptorCount,
pVertexElementInfo,
vertexFormatDesc.mVertexCount,
(void*)vertexFormatDesc.mpVertices,
&indexDataInfo,
vertexFormatDesc.mIndexCount,
vertexFormatDesc.mpIndices
);
if(CPUTFAILED(result))
{
return result;
}
}
delete [] pVertexElementInfo;
pVertexElementInfo = NULL;
++meshIndex;
}
ASSERT( file.eof(), _L("") );
// close file
file.close();
return result;
}
