[GEM-dev] colorspaces mac

[chris clepper]

pix_color replaces all of the pixels in an image so getting a solid
color is what one would expect.  I don't know what you are trying to
do with pix_rgba, but I don't think there is any reason to use this
unless you need to convert YUV or grey to RGB.

I responded to your other thread about pix_alpha not working, but I
could not reproduce the problem.  I ran a diff on pix_image and
pix_alpha and both appear to be the same code on my machine and CVS.

On Nov 7, 2007 2:49 PM, marius schebella <marius.schebella at gmail.com> wrote:
> with pix_film the pix_info gives me a colorspace output of 34233, but I
> cannot use it with pix_color, that gives only white color...
> pix_rgba does some conversion, but then again pix_stays is white.
> [pix_film] (pix_info: 34233)
>   |
> [pix_rgba] (pix_info: 32993)
>   |
> [pix_color] (white)
> this is with gem 0.91 from cvs nov 5 from (comes with the latest
> pd-extended).
> marius.
>
>
>
> chris clepper wrote:
> > If you use pix_film instead of pix_image to load the image do you have
> > the same problems?
> >
> > On Nov 7, 2007 9:33 AM, marius schebella <marius.schebella at gmail.com> wrote:
> >> Hi,
> >> I don't know if that helps, but here is what I get when I connect a
> >> pix_info to a pix_image:
> >> colorspace 32993. (which is supposed to be GL_BGRA). is this what it
> >> should be?
> >> when I connect pix_image to pix_color (and texture and square) the image
> >> is messed up (colors are yellowish blue and luminance are somehow combined).
> >> when I connect pix_image to pix_yuv the image appears blueish and I get
> >> colorspace 34233 (GL_YCBCR_422_APPLE).
> >> [color] works (colorspace 32993).
> >>
> >> another problem is this:
> >> [pix_image]
> >>   |
> >> [pix_rgba]
> >>   |
> >> [pix_texture]
> >> when I rename the object pix_rgba to pix_color, then the image gets
> >> yellow. but then even when I disconnect pix_color and go directly from
> >> pix_image to pix_texture the image stays yellow, until I reload the
> >> image (then it is fine again).
> >>
> >> I can test which other pix objects are broken (pix_alpha for example...)
> >> marius.
> >>
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> >>
> >
>
>