GPtr<RenderBase::Texture> _BuildTextureData(const GPtr<Resources::ImageRes>& image, GPtr<IO::MemoryStream>& memStream)
{
n_assert(image.isvalid());
if ( !image.isvalid() )
{
return GPtr<RenderBase::Texture>();
}
if ( !image->Validata() )
{
return GPtr<RenderBase::Texture>();
}
GPtr<RenderBase::Texture> tex = RenderBase::Texture::Create();
tex->Setup();
// set type
RenderBase::Texture::Type texType = RenderBase::Texture::InvalidType;
if ( image->GetNumFace() == 1 )
{
if ( image->GetDepth() == 1)
{
texType = RenderBase::Texture::Texture2D;
}
else
{
n_assert( image->GetDepth() > 1);
texType = RenderBase::Texture::Texture3D;
}
}
else
{
n_assert( image->GetNumFace() > 1);
texType = RenderBase::Texture::TextureCube;
}
n_assert( texType != RenderBase::Texture::InvalidType)
tex->SetType( texType );
tex->SetWidth( image->GetWidth() );
tex->SetHeight( image->GetHeight() );
tex->SetDepth( image->GetDepth() );
tex->SetNumMipLevels( image->GetMipMapLevel() + 1 );
tex->SetPixelFormat( image->GetPixelFormat() );
// dummy
tex->SetSkippedMips( 0 );
tex->SetUnitIndex( 0 );
n_assert( image->GetResourceId().IsValid() );
tex->SetTexturePath(image->GetResourceId());
const GPtr<ImageData>& imageData = image->GetImageData();
n_assert( imageData.isvalid() );
if (memStream)
{
memStream = NULL;
}
memStream = IO::MemoryStream::Create();
memStream->SetAccessMode( IO::Stream::ReadWriteAccess );
if( memStream->Open() )
{
memStream->Write( imageData->Ptr(), imageData->Size() );
tex->SetStream( memStream.upcast<IO::Stream>() );
memStream->Close();
return tex;
}
return GPtr<RenderBase::Texture>();
}
