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Iterator Traits
[Pixel Iterators]
Traits for pixel iterators.
More...Namespaces | |
| namespace | detail |
Classes | |
| struct | pixel_iterator_traits< const pixel< T, C > * > |
| Raw pointers to pixel are used for interleaved pixels. Interleaved pixels use standard pointers and references. More... | |
| struct | pixel_iterator_traits< dereference_iterator_adaptor< I, D_FN > > |
| Traits for dereference iterator adaptor. More... | |
| struct | pixel_iterator_traits< pixel< T, C > * > |
| Raw pointers to pixel are used for interleaved pixels. Interleaved pixels use standard pointers and references. More... | |
| struct | pixel_iterator_traits< pixel_image_iterator< LOC > > |
| Traits for pixel image iterator. More... | |
| struct | pixel_iterator_traits< pixel_step_iterator< IT > > |
| Traits for pixel step iterator. More... | |
| struct | pixel_iterator_traits< planar_ptr< IC, C > > |
| Planar pixels use special proxy classes for pointers and references. More... | |
Detailed Description
That includes raw pointers to pixel structs, pointer classes for planar pixels, and step iterators for non-trivial iteration.In addition to the regular iterator traits types, iterators over pixels have the following:
color_space_t(also incorporates presence of alpha, and the channel sequence. Sample values: rgb_t, bgr_t, rgba_t, bgra_tag, cmyk_t, cmyka_tag)channel_t(unsigned char (bits8), unsigned short (bits16), float (bits32f), etc)const_channel_t(the constant version of channel_t)const_reference(the constant version of a reference)const_t(pixel iterator of the same type, except that it operates on constant pixels, i.e. does not allow changing the pixels)dynamic_step_t(pixel iterator of the same type, except that it has a dynamic step)is_planar(bool determining whether the iterator operates on planar or interleaved data)is_base(bool determining whether the iterator is an adaptor over another one or is fundamental)base_t(the type of the adaptee iterator. Not defined when is_base is false )pixel_data_is_real(true if the iterator operates on pixel data that exists in memory (as opposed to being generated on the fly, as in the color conversion iterators for example)