Module: Skia::Native

Extended by:
FFI::Library
Defined in:
lib/skia/native.rb,
lib/skia/native/types.rb,
lib/skia/native/callbacks.rb,
lib/skia/native/functions.rb

Defined Under Namespace

Classes: SKDocumentPdfMetadata, SKFontMetrics, SKIPoint, SKIRect, SKISize, SKImageInfo, SKJpegEncoderOptions, SKMatrix, SKMatrix44, SKPngEncoderOptions, SKPoint, SKRect, SKRunBuffer, SKSamplingOptions, SKSize, SKTimeDateTime, SKWebpEncoderOptions

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.optional_functions ⇒ Object (readonly)

Returns the value of attribute optional_functions.



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# File 'lib/skia/native.rb', line 9

def optional_functions
  @optional_functions
end

Class Method Details

.find_library ⇒ Object 



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# File 'lib/skia/native.rb', line 11

def find_library
  lib_name, fallbacks = case RUBY_PLATFORM
                        when /darwin/
                          ['libSkiaSharp.dylib', ['libskia.dylib']]
                        when /linux/
                          ['libSkiaSharp.so', ['libskia.so']]
                        when /mingw|mswin/
                          ['libSkiaSharp.dll', ['skia.dll']]
                        else
                          raise "Unsupported platform: #{RUBY_PLATFORM}"
                        end

  gem_root = File.expand_path('../..', __dir__)
  search_paths = [
    File.join(gem_root, lib_name),
    File.join(Dir.pwd, lib_name),
    ENV['SKIA_LIBRARY_PATH'],
    lib_name
  ].compact

  found = search_paths.find { |p| File.exist?(p) }
  return found if found

  [lib_name] + fallbacks
end

.function_available?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/skia/native.rb', line 44

def function_available?(name)
  key = name.to_sym
  return @optional_functions[key] if @optional_functions.key?(key)

  respond_to?(key)
end

.optional_attach_function(name, args, ret) ⇒ Object 



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# File 'lib/skia/native.rb', line 37

def optional_attach_function(name, args, ret)
  attach_function(name, args, ret)
  @optional_functions[name.to_sym] = true
rescue FFI::NotFoundError
  @optional_functions[name.to_sym] = false
end