HRESULT CTDDDLoader::ParseTDDD(IStream* pStream, ILMFNode* parentChildren)
{
IFFRESULT iffresult;
IFFCHUNK ck;
while ((iffresult = IFFDescendChunk(pStream, &ck)) == IFF_OK)
{
switch (ck.ckID)
{
case ID_OBJ:
{
ParseOBJ(pStream, parentChildren);
}
break;
default:
ATLTRACE("%4.4s\n", &ck.ckID);
}
if (iffresult < 0) break;
iffresult = IFFAscendChunk(pStream, &ck);
}
return iffresult;
}
//-*****************************************************************************
void ParseOBJ( Reader &iReadInto,
const std::string &iFileName )
{
std::ifstream fStr( iFileName.c_str() );
if ( !fStr )
{
ParseReader reader( iReadInto );
reader.start( iFileName );
std::stringstream sstr;
sstr << "ERROR: OBJ stream \"" << iFileName
<< "\": " << std::endl
<< "Couldn't open file: " << iFileName << std::endl;
reader.error( iFileName, sstr.str(), 0 );
return;
}
ParseOBJ( iReadInto, iFileName, fStr );
}
static struct Mesh * LoadOBJ(const char *filename)
{
Mesh *theMesh;
theMesh = malloc(sizeof(Mesh));
theMesh->coordIndex = NULL;
theMesh->vertices = NULL;
// ProcessMesh may deal with these
theMesh->triangleCountList = NULL;
theMesh->vertexNormals = NULL;
theMesh->vertexToTriangleTable = NULL;
theMesh->textureCoords = NULL;
theMesh->textureIndex = NULL;
theMesh->normalsIndex = NULL;
hasPositionIndices = true;
hasTexCoordIndices = false;
hasNormalIndices = false;
vertCount=0;
texCount=0;
normalsCount=0;
coordCount=0;
fp = fopen(filename, "rw");
if (fp == NULL)
{
fprintf(stderr, "Unable to open file '%s'\n", filename);
fflush(stderr);
return NULL;
}
ParseOBJ(theMesh);
fclose(fp);
// Allocate arrays!
if (vertCount > 0)
theMesh->vertices = malloc(sizeof(GLfloat) * vertCount);
if (texCount > 0)
theMesh->textureCoords = malloc(sizeof(GLfloat) * texCount);
if (normalsCount > 0)
theMesh->vertexNormals = malloc(sizeof(GLfloat) * normalsCount);
if (hasPositionIndices)
theMesh->coordIndex = malloc(sizeof(int) * coordCount);
if (hasNormalIndices)
theMesh->normalsIndex = malloc(sizeof(int) * coordCount);
if (hasTexCoordIndices)
theMesh->textureIndex = malloc(sizeof(int) * coordCount);
// Zero again
vertCount=0;
texCount=0;
normalsCount=0;
coordCount=0;
fp = fopen(filename, "rw");
if (fp == NULL) return NULL;
ParseOBJ(theMesh);
fclose(fp);
theMesh->vertexCount = vertCount/3;
theMesh->coordCount = coordCount;
// Counters for tex and normals, texCount and normalsCount
theMesh->texCount = texCount/2;
theMesh->normalsCount = normalsCount/3; // Should be the same as vertexCount!
// This assumption could make handling of some models break!
return theMesh;
}
