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OG Xbox Forums => Software Forums => Development => Topic started by: OllieD on November 14, 2007, 04:52:00 AM

Title: Dev's Need For A Xpr Extractor
Post by: OllieD on November 14, 2007, 04:52:00 AM

I Made One A While Ago.

See This Thread...

-=] XPR-Ripper [=-

Title: Dev's Need For A Xpr Extractor
Post by: Jezz_X on November 14, 2007, 02:41:00 PM

Way to drag up a 5 year old post for shameless self promotion

Title: Dev's Need For A Xpr Extractor
Post by: Nigma on July 13, 2002, 01:05:00 PM

Looking around in a few programs it seems an XPR ripper/re-packer is badly need. XPR being a XBox Binary Resource File optimized for the XBox to read the contents right into memory.  This is where much of the texture/vertex/other data is stored for many a game.

Anyone up to the challenge?

The function to read the XPR should look something like this:

//-----------------------------------------------------------------------------
// Name: LoadPackedResource()
// Desc: Loads all the texture resources from the given XPR.
//-----------------------------------------------------------------------------
HRESULT LoadPackedResource()
{
  // Open the file to read the XPR headers
  FILE* file = fopen( "D:\\media\\Resource.xpr", "rb" );
  if( NULL == file )
      return E_FAIL;

  // Read in and verify the XPR magic header
  XPR_HEADER xprh;
  if(fread( &xprh, sizeof(XPR_HEADER), 1, file) != 1)
  {
      fclose(file);
      return E_FAIL;
  }

  if( xprh.dwMagic != XPR_MAGIC_VALUE )
  {
      OutputDebugStringA( "ERROR: Invalid Xbox Packed Resource (.xpr) file" );
      fclose( file );
      return E_INVALIDARG;
  }

  // Compute memory requirements
  DWORD dwSysMemDataSize = xprh.dwHeaderSize - sizeof(XPR_HEADER);
  DWORD dwVidMemDataSize = xprh.dwTotalSize - xprh.dwHeaderSize;

  // Allocate memory
  g_pResourceSysMemData = new BYTE[dwSysMemDataSize];
  g_pResourceVidMemData = (BYTE*)D3D_AllocContiguousMemory( dwVidMemDataSize, D3DTEXTURE_ALIGNMENT );

  // Read in the data from the file
  if(fread( g_pResourceSysMemData, dwSysMemDataSize, 1, file ) != 1 ||
     fread( g_pResourceVidMemData, dwVidMemDataSize, 1, file ) != 1 )
     
  {
      delete [] g_pResourceSysMemData;
      D3D_FreeContiguousMemory(g_pResourceVidMemData);
      fclose(file);
      return E_FAIL;
  }

  // Done with the file
  fclose( file );
 
  // Loop over resources, then call a function to save it to HDD
  BYTE* pData = g_pResourceSysMemData;

  for( DWORD i = 0; i < resource_NUM_RESOURCES; i++ )
  {
      // Get the resource
      LPDIRECT3DRESOURCE8 pResource = (LPDIRECT3DRESOURCE8)pData;

      // Save in appropriate format to HDD
      pResource->SaveToHD( g_pResourceVidMemData );
 
      // Advance the pointer
      switch( pResource->GetType() )
      {
          case D3DRTYPE_TEXTURE:       pData += sizeof(D3DTexture);       break;
          case D3DRTYPE_VOLUMETEXTURE: pData += sizeof(D3DVolumeTexture); break;
          case D3DRTYPE_CUBETEXTURE:   pData += sizeof(D3DCubeTexture);   break;
          case D3DRTYPE_VERTEXBUFFER:  pData += sizeof(D3DVertexBuffer);  break;
          case D3DRTYPE_INDEXBUFFER:   pData += sizeof(D3DIndexBuffer);   break;
          case D3DRTYPE_PALETTE:       pData += sizeof(D3DPalette);       break;
          default:                     return E_FAIL;
      }
  }

  return S_OK;
}

You'd need to add some code to convert textures to .bmp's (with volume and cube writing multiple .bmp's), the vertices and indices can be text (I think).

Do a search on XPR in the DK docs for the specs that the bundler uses to create the files in the first place.  PM me if you interesting working on this.  

Title: Dev's Need For A Xpr Extractor
Post by: Nigma on July 16, 2002, 07:05:00 AM

Anyone, anyone?  Bueller?  Bueller?