Reading Textures

[Anonymous]

Hi all,

I was trying to import textured objects for the past couple of days. The texture is external, so I thought overwriting W3D_Image's default opcode handler is the way to go, but the GetName method of the default opcode handler (which btw returns 'Texture 1') was all I thought might be useful. The TKE_Texture's default opcode handler doesn't seem to be doing more either. I was wondering where the actual pointer to texture data resides. How should I access the texture if there is no sucj pointer? Any ideas would be greatly appreciated.

[Anonymous]

I searched the documents and the web since my last post and somehow I've got the impression maybe this TK_Color might prove to be of some use. Anyway, I'm still looking for your new ideas...
Thanks in advance

[Anonymous]

Hi,

Sample code from my loader :

DWFToolkit::DWFResourceContainer::ResourceIterator* piRes = pSect->findResourcesByRole( DWFXML::kzRole_Texture );
while( piRes && piRes->valid() ) {
DWFToolkit::DWFGraphicResource* pTxtr = dynamic_cast(piRes->get());
if( pTxtr ) {
DWFCore::DWFInputStream* pTxtrStrm = pTxtr->getInputStream();
int iSizeReq = (int) pTxtrStrm->available();
if( iSizeReq > 0 ) {
char *pImgeData = (char *) malloc(iSizeReq);
pTxtrStrm->read( pImgeData, iSizeReq );

CJPEGPtr apImge = new CJPEG(pImgeData, iSizeReq, true);
apImge->setWrapS(e3d::CImge::eWrapMode::wmREPEAT);
apImge->setWrapT(e3d::CImge::eWrapMode::wmREPEAT);
apImge->setMagFltr(e3d::CImge::eFltrMode::fltrLINEAR);
apImge->setMinFltr(e3d::CImge::eFltrMode::fltrLINEAR);
std::wstring wsName = (const wchar_t *) pTxtr->title();
m_mapTxtrs[wsName] = apImge;
free(pImgeData);
}
}

piRes->next();
}

the wsName value will be the same name as the TK_Color ie :

m_diffuse.m_name contains the same name. However, I also found out you can have the name of the colour followed by text values describing a colour as well for example :

ORANGESKIN (r=50 g=40 b=10) So I had to extract the two parts seperatly to get the correct end result (A real pain )

Hope this helps

Cheers
jason

[Anonymous]

Hi,

Yes, that actually helped a lot. Your code cleared my doubt as to whether I should extract the texture myself and forget about overwriting an opcode handler. There is no such thing like a ready-to-use texture pointer. I had to do the same and manually extract info for objects' names.

Thank you for investing the time and answering my question.

[geotavros]

Textures seems to be compressed in png or jpeg in DWF. What did you use to decompress them?