Adding a new Opengl2d3d.dll function

#1 For DX you have to add the coresponding DX function I think. DX does not know nor can it use what GL does.

#2 Hmm but in the DLL source it appears there are DX versions of every OpenGL call, I added another in with those. I made a simple "glCompressedTexImage2DARB" that will print "success" to the console, but it won't get that far. I tried to force load the d3d function when the engine fails to see the OGL extension (ie DX mode) but somehow it doesn't load it. I don't know what's going on so I'm taking shots in the dark at this.

If anyone has suggestions I'd like to hear them.

#3 I see what I did! In winGL.cc I was calling qwglGetProcAddress when I shouldve used GPA_GL !
Now I can try the DirectX version, I think.

#4 Ok I lied I do need help coding the DirectX function. I'm at the point where I just need to create a texture from raw pixels. I just took the glTexImage2D code from the DLL and changed it so it can work for glCompressedTexImage2DARB.

I'm no DX expert, but after some googling I arrived at this:

// How can I get pixels into a DDsurface?           
         DDSURFACEDESC2 ddsd; 
         memset(&ddsd, 0, sizeof(ddsd));
         ddsd.dwSize = sizeof(ddsd);	    
         ddsd.dwFlags = DDSD_LINEARSIZE | DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH | DDSD_PIXELFORMAT;
	 ddsd.ddsCaps.dwCaps  = DDSCAPS_TEXTURE;
	 ddsd.ddsCaps.dwCaps2 = DDSCAPS2_TEXTUREMANAGE;
		
	 ddsd.dwHeight=height; ddsd.dwWidth=width;
		
	 ddsd.ddpfPixelFormat.dwSize   =  sizeof(DDPIXELFORMAT);		
	 ddsd.ddpfPixelFormat.dwFourCC =  FOURCC_DXT5;
	 ddsd.ddpfPixelFormat.dwFlags  =  DDPF_FOURCC  ;         

         DWORD flags = D3DX_TEXTURE_NOMIPMAP;

        // Create a texture object 
        HRESULT ddrval = D3DXCreateTexture(
                                                                  g.m_d3ddev,
								  &flags,
								  (DWORD*)&width, 
								  (DWORD*)&height, 
								  &fmt,
								  NULL, 
								  &ddsurf,				
								  0);
	if (ddrval != DD_OK) return ; 
								  
       ddsurf->SetSurfaceDesc(&ddsd,0);  

       // Create texture from raw pixel data  
       ddrval = D3DXLoadTextureFromMemory(g.m_d3ddev,
                                      ddsurf,
				      flags,                                      
                                      (DWORD*)pixels, 
                                      NULL, 
                                      fmt, 
                                      ddsd.lPitch  ,                                      
                                      NULL,  
                                      D3DX_FT_LINEAR
                                      ); 
       if (ddrval != DD_OK) return ;

That's basically it besides setup code to set "fmt" to D3DX_SF_DXT5. My test case is a DXT5 compressed bullet image from the shooter demo. This shows no DX errors but also shows a white image. I'm sure it's a dumb mistake. If you see a problem plz clue me in.


Edit : If anyone is curious I gave up on all this... I'm an OpenGL man and just couldn't seem to figure it out. Plus the DXT compression isn't all that important, I guess...