void
readTiled1 (const char fileName[],
            Array2D<GZ> &pixels,
            int &width, int &height)
{
    TiledInputFile in (fileName);

    Box2i dw = in.header().dataWindow();
    width  = dw.max.x - dw.min.x + 1;
    height = dw.max.y - dw.min.y + 1;
    int dx = dw.min.x;
    int dy = dw.min.y;

    pixels.resizeErase (height, width);

    FrameBuffer frameBuffer;

    frameBuffer.insert ("G",					 // name
                        Slice (HALF,				 // type
			       (char *) &pixels[-dy][-dx].g,	 // base
				sizeof (pixels[0][0]) * 1,	 // xStride
				sizeof (pixels[0][0]) * width)); // yStride

    frameBuffer.insert ("Z",					 // name
                        Slice (FLOAT,				 // type
			       (char *) &pixels[-dy][-dx].z,	 // base
				sizeof (pixels[0][0]) * 1,	 // xStride
				sizeof (pixels[0][0]) * width)); // yStride

    in.setFrameBuffer (frameBuffer);
    in.readTiles (0, in.numXTiles() - 1, 0, in.numYTiles() - 1);
}
Пример #2
0
TiledRgbaInputFile::FromYa::FromYa (TiledInputFile &inputFile)
:
    _inputFile (inputFile)
{
    const TileDescription &td = inputFile.header().tileDescription();

    _tileXSize = td.xSize;
    _tileYSize = td.ySize;
    _yw = ywFromHeader (_inputFile.header());
    _buf.resizeErase (_tileYSize, _tileXSize);
    _fbBase = 0;
    _fbXStride = 0;
    _fbYStride = 0;
}
Пример #3
0
void	
TiledOutputFile::copyPixels (TiledInputFile &in)
{
    Lock lock (*_streamData);

    //
    // Check if this file's and and the InputFile's
    // headers are compatible.
    //

    const Header &hdr = _data->header;
    const Header &inHdr = in.header(); 

    if (!hdr.hasTileDescription() || !inHdr.hasTileDescription())
        THROW (IEX_NAMESPACE::ArgExc, "Cannot perform a quick pixel copy from image "
			    "file \"" << in.fileName() << "\" to image "
			    "file \"" << fileName() << "\".  The "
                            "output file is tiled, but the input file is not.  "
                            "Try using OutputFile::copyPixels() instead.");

    if (!(hdr.tileDescription() == inHdr.tileDescription()))
        THROW (IEX_NAMESPACE::ArgExc, "Quick pixel copy from image "
			    "file \"" << in.fileName() << "\" to image "
			    "file \"" << fileName() << "\" failed. "
			    "The files have different tile descriptions.");

    if (!(hdr.dataWindow() == inHdr.dataWindow()))
        THROW (IEX_NAMESPACE::ArgExc, "Cannot copy pixels from image "
			    "file \"" << in.fileName() << "\" to image "
			    "file \"" << fileName() << "\". The "
                            "files have different data windows.");

    if (!(hdr.lineOrder() == inHdr.lineOrder()))
        THROW (IEX_NAMESPACE::ArgExc, "Quick pixel copy from image "
			    "file \"" << in.fileName() << "\" to image "
			    "file \"" << fileName() << "\" failed. "
			    "The files have different line orders.");

    if (!(hdr.compression() == inHdr.compression()))
        THROW (IEX_NAMESPACE::ArgExc, "Quick pixel copy from image "
			    "file \"" << in.fileName() << "\" to image "
			    "file \"" << fileName() << "\" failed. "
			    "The files use different compression methods.");

    if (!(hdr.channels() == inHdr.channels()))
        THROW (IEX_NAMESPACE::ArgExc, "Quick pixel copy from image "
			     "file \"" << in.fileName() << "\" to image "
			     "file \"" << fileName() << "\" "
                             "failed.  The files have different channel "
                             "lists.");

    //
    // Verify that no pixel data have been written to this file yet.
    //

    if (!_data->tileOffsets.isEmpty())
        THROW (IEX_NAMESPACE::LogicExc, "Quick pixel copy from image "
			      "file \"" << in.fileName() << "\" to image "
			      "file \"" << _streamData->os->fileName() << "\" "
                              "failed. \"" << fileName() << "\" "
                              "already contains pixel data.");

    //
    // Calculate the total number of tiles in the file
    //

    int numAllTiles = 0;

    switch (levelMode ())
    {
      case ONE_LEVEL:
      case MIPMAP_LEVELS:

        for (int i_l = 0; i_l < numLevels (); ++i_l)
            numAllTiles += numXTiles (i_l) * numYTiles (i_l);

        break;

      case RIPMAP_LEVELS:

        for (int i_ly = 0; i_ly < numYLevels (); ++i_ly)
            for (int i_lx = 0; i_lx < numXLevels (); ++i_lx)
                numAllTiles += numXTiles (i_lx) * numYTiles (i_ly);

        break;

      default:

        throw IEX_NAMESPACE::ArgExc ("Unknown LevelMode format.");
    }

     bool random_y = _data->lineOrder==RANDOM_Y;

    std::vector<int> dx_table(random_y ? numAllTiles : 1);
    std::vector<int> dy_table(random_y ? numAllTiles : 1);
    std::vector<int> lx_table(random_y ? numAllTiles : 1);
    std::vector<int> ly_table(random_y ? numAllTiles : 1);
    
    if(random_y)
    {
        in.tileOrder(&dx_table[0],&dy_table[0],&lx_table[0],&ly_table[0]);
        _data->nextTileToWrite.dx=dx_table[0];
        _data->nextTileToWrite.dy=dy_table[0];
        _data->nextTileToWrite.lx=lx_table[0];
        _data->nextTileToWrite.ly=ly_table[0];
    }

    for (int i = 0; i < numAllTiles; ++i)
    {
        const char *pixelData;
        int pixelDataSize;
        
        int dx = _data->nextTileToWrite.dx;
        int dy = _data->nextTileToWrite.dy;
        int lx = _data->nextTileToWrite.lx;
        int ly = _data->nextTileToWrite.ly;

        
        in.rawTileData (dx, dy, lx, ly, pixelData, pixelDataSize);
        writeTileData (_streamData, _data, dx, dy, lx, ly, pixelData, pixelDataSize);
        
        if(random_y)
        {
            if(i<numAllTiles-1)
            {
               _data->nextTileToWrite.dx=dx_table[i+1];
               _data->nextTileToWrite.dy=dy_table[i+1];
               _data->nextTileToWrite.lx=lx_table[i+1];
               _data->nextTileToWrite.ly=ly_table[i+1];
            }
        }else{
            _data->nextTileToWrite=_data->nextTileCoord(_data->nextTileToWrite);
        }
    }
}