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README lib / psd / blend_mode.coffee lib / psd / channel_image.coffee lib / psd / color.coffee lib / psd / descriptor.coffee lib / psd / file.coffee lib / psd / header.coffee lib / psd / image.coffee lib / psd / image_export.coffee lib / psd / image_exports / png.coffee lib / psd / image_format.coffee lib / psd / image_formats / layer_raw.coffee lib / psd / image_formats / layer_rle.coffee lib / psd / image_formats / raw.coffee lib / psd / image_formats / rle.coffee lib / psd / image_mode.coffee lib / psd / image_modes / cmyk.coffee lib / psd / image_modes / greyscale.coffee lib / psd / image_modes / rgb.coffee lib / psd / init.coffee lib / psd / layer / blend_modes.coffee lib / psd / layer / blending_ranges.coffee lib / psd / layer / channel_image.coffee lib / psd / layer / helpers.coffee lib / psd / layer / info.coffee lib / psd / layer / mask.coffee lib / psd / layer / name.coffee lib / psd / layer / position_channels.coffee lib / psd / layer.coffee lib / psd / layer_info / blend_clipping_elements.coffee lib / psd / layer_info / blend_interior_elements.coffee lib / psd / layer_info / fill_opacity.coffee lib / psd / layer_info / gradient_fill.coffee lib / psd / layer_info / layer_id.coffee lib / psd / layer_info / layer_name_source.coffee lib / psd / layer_info / legacy_typetool.coffee lib / psd / layer_info / locked.coffee lib / psd / layer_info / metadata.coffee lib / psd / layer_info / nested_section_divider.coffee lib / psd / layer_info / object_effects.coffee lib / psd / layer_info / section_divider.coffee lib / psd / layer_info / solid_color.coffee lib / psd / layer_info / typetool.coffee lib / psd / layer_info / unicode_name.coffee lib / psd / layer_info / vector_mask.coffee lib / psd / layer_info / vector_origination.coffee lib / psd / layer_info / vector_stroke.coffee lib / psd / layer_info / vector_stroke_content.coffee lib / psd / layer_info.coffee lib / psd / layer_mask.coffee lib / psd / lazy_execute.coffee lib / psd / mask.coffee lib / psd / node.coffee lib / psd / nodes / ancestry.coffee lib / psd / nodes / build_preview.coffee lib / psd / nodes / group.coffee lib / psd / nodes / layer.coffee lib / psd / nodes / root.coffee lib / psd / nodes / search.coffee lib / psd / path_record.coffee lib / psd / resource.coffee lib / psd / resource_section.coffee lib / psd / resources / layer_comps.coffee lib / psd / resources.coffee lib / psd / util.coffee lib / psd.coffee shims / init.coffee shims / png.coffee

# util.coffee lib/psd/ |
--- | ---
¶ |
    module.exports =
      pad2: (i) -> (i + 1) & ~0x01
      pad4: (i) -> ((i + 4) & ~0x03) - 1
      getUnicodeCharacter: (cp) ->
        if cp >= 0 and cp <= 0xD7FF or cp >= 0xE000 and cp <= 0xFFFF
          return String.fromCharCode(cp)
        else if cp >= 0x10000 and cp <= 0x10FFFF
¶ we substract 0x10000 from cp to get a 20-bits number in the range 0..0xFFFF |
          cp -= 0x10000
¶ we add 0xD800 to the number formed by the first 10 bits to give the first byte |
          first = ((0xffc00 & cp) >> 10) + 0xD800
¶ we add 0xDC00 to the number formed by the low 10 bits to give the second byte |
          second = (0x3ff & cp) + 0xDC00

          String.fromCharCode(first) + String.fromCharCode(second)

      clamp: (num, min, max) ->
        Math.min(Math.max(num, min), max)

generated Tue May 12 2015 10:38:20 GMT-0400 (EDT)