Class: Vips::ForeignFlags

Inherits:

Object

• Object
• Vips::ForeignFlags

Defined in:

lib/vips/foreignflags.rb

Overview

Some hints about the image loader.

• ‘:partial` means that the image can be read directly from the file without needing to be unpacked to a temporary image first.

• ‘:sequential` means that the loader supports lazy reading, but only top-to-bottom (sequential) access. Formats like PNG can read sets of scanlines, for example, but only in order.

  If neither partial` or sequential` is set, the loader only supports whole image read. Setting both partial` and sequential` is an error.

• ‘:bigendian` means that image pixels are most-significant byte first. Depending on the native byte order of the host machine, you may need to swap bytes. See vips_copy().