void zfits::AllocateBuffers ( )

inlineprivate

Definition at line 157 of file zfits.h.

References BlockHeader(), fits::Table::bytes_per_row, fNumRowsPerTile, fits::fTable, fits::Table::num_cols, and TileHeader().

Referenced by InitCompressionReading().

    {
        uint32_t buffer_size = fTable.bytes_per_row*fNumRowsPerTile;
        uint32_t compressed_buffer_size = fTable.bytes_per_row*fNumRowsPerTile +
            //use a bit more memory for block headers. 256 char coding the compression sequence max.
            fTable.num_cols*(sizeof(FITS::BlockHeader)+256) +
            //a bit more for the tile headers
            sizeof(FITS::TileHeader) +
            //and a bit more for checksuming
            8;

        if (buffer_size % 4 != 0)
            buffer_size += 4 - (buffer_size%4);

        if (compressed_buffer_size % 4 != 0)
            compressed_buffer_size += 4 - (compressed_buffer_size%4);

        fBuffer.resize(buffer_size);

        fTransposedBuffer.resize(buffer_size);
        fCompressedBuffer.resize(compressed_buffer_size);
    }

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