Module: GDAL::Dataset::InternalFunctions

Defined in:
lib/gdal/dataset/internal_functions.rb

Class Method Summary collapse

Class Method Details

.band_numbers_args(band_numbers) ⇒ Array<FFI::MemoryPointer, Integer>

Makes a pointer of band_numbers.

Parameters:

Returns:

  • (Array<FFI::MemoryPointer, Integer>) 


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# File 'lib/gdal/dataset/internal_functions.rb', line 10

def self.band_numbers_args(band_numbers)
  band_count = band_numbers&.size || 0
  ptr = FFI::MemoryPointer.new(:int, band_count)

  ptr.write_array_of_int(band_numbers) if band_numbers

  ptr.autorelease = false

  [ptr, band_count]
end