[Adobe-source-devel] GIL Question : Adding a new color space to GIL

[Haroon K. <har...@gm...>]

Hi,

I'm working with some images that are extracted from an MPEG stream
that are in the YCrCb color space. I want to be able to manipulate
these images using GIL and I've added a new color space as defined in
section 16 in the GIL design guide. I also added color conversion
based on  the functions in color_convert.h and defined the various
typedefs for pixels pointers, references and images.

Now everytime I try to instantiate ycrcb8_planar_image_t object in my
code, like the following

GIL::ycrcb8_planar_image_t img2(200,200);

, I get a compile error which is something like this something like
the error at the end of the email.

I noticed that there are template specializations for
byte_advanced_ref for the other color spaces such as rgb and cmyk. Do
other color spaces also need a specialization.

I'm using the VC8 compiler.

Thanks,
Haroon


1>c:\haroon\dev\libs\gil\core\locator.hpp(269) : error C2784:
'gil::planar_ref<std::iterator_traits<_Iter>::reference,gil::devicen_t<N>>
gil::byte_advanced_ref(const
gil::planar_ptr_base<IC,gil::devicen_t<N>> &,ptrdiff_t)' : could not
deduce template argument for 'const
gil::planar_ptr_base<IC,gil::devicen_t<N>> &' from 'const
gil::planar_ptr<IC,C>'
1>        with
1>        [
1>            N=5
1>        ]
1>        and
1>        [
1>            N=5
1>        ]
1>        and
1>        [
1>            IC=gil::bits8 *,
1>            C=gil::ycrcb_t
1>        ]
1>        c:\haroon\dev\libs\gil\core\device_n.hpp(319) : see
declaration of 'gil::byte_advanced_ref'
1>        c:\haroon\dev\libs\gil\core\locator.hpp(269) : while
compiling class template member function 'gil::planar_ref<TR,C>
gil::membased_2d_locator<S_IT>::operator ()(int,int) const'
.....