geotrellis.raster.io.geotiff.StorageMethod.scala Maven / Gradle / Ivy

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GeoTrellis is an open source geographic data processing engine for high performance applications.

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package geotrellis.raster.io.geotiff

import geotrellis.raster._

abstract sealed class StorageMethod

case class Tiled(blockCols: Int = 256, blockRows: Int = 256) extends StorageMethod

// Trait used only for implicit conversion of object
private[geotiff] trait TiledStorageMethod

object Tiled extends TiledStorageMethod {
  implicit def objectToStorageMethod(t: TiledStorageMethod): Tiled = Tiled()
}

class Striped(rowsPerStrip: Option[Int]) extends StorageMethod {
  def rowsPerStrip(rows: Int, bandType: BandType): Int =
    rowsPerStrip match {
      case Some(ris) => ris
      case None =>
        // strip height defaults to a value such that one strip is 8K or less.
        val rowSize = rows * bandType.bytesPerSample
        val ris = 8000 / rowSize
        if(ris == 0) 1
        else ris
    }
}

// Trait used only for implicit conversion of object
private[geotiff] trait StripedStorageMethod

object Striped extends StripedStorageMethod {
  def apply(rowsPerStrip: Int): Striped = new Striped(Some(rowsPerStrip))
  def apply(): Striped = new Striped(None)

  implicit def objectToStorageMethod(s: StripedStorageMethod): Striped = Striped()
}