[GEM-dev] [ pd-gem-Bugs-3445962 ] pix_writer write rgba images - osx

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Bugs item #3445962, was opened at 2011-11-30 03:15
Message generated for change (Settings changed) made by zmoelnig
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Category: Pixes (pix_ objects)
Group: osx
>Status: Pending
>Resolution: Fixed
Priority: 5
Private: No
Submitted By: Nicolas Montgermont (nimon)
Assigned to: Nobody/Anonymous (nobody)
Summary: pix_writer write rgba images - osx

Initial Comment:
I must insert a [pix_rgba] before [pix_writer] to have the good image written.
It seems [pix_writer] writes rgb images even if it receives yuv data.
osx.6.8
gem from current git

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Comment By: IOhannes m zmölnig (zmoelnig)
Date: 2011-11-30 06:52

Message:
should be fixed in git.736f0982

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Comment By: Nicolas Montgermont (nimon)
Date: 2011-11-30 04:51

Message:
right sorry,
pix_snap converts to rgb, so forget about the last line of my last
comment.


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Comment By: Nobody/Anonymous (nobody)
Date: 2011-11-30 04:07

Message:
i think the expected behavior for pix_write is to convert yuv image to rgb
befor recording it to the disk.


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Comment By: Nicolas Montgermont (nimon)
Date: 2011-11-30 03:55

Message:
Maybe I was not clear enough. 
If I use [pix_writer] just after [pix_video] I get a totally distorted
image. 
Exactly the same if I use [pix_image] on a rgb image, and then [pix_yuv]
and then [pix_writer].
It looks like [pix_writer] is not testing the format of the texture and
assume it's rgb even if it's not the case.

The expected behavior is to have the same result with
[pix_snap]+[pix_writer] and [pix_write]

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Comment By: IOhannes m zmölnig (zmoelnig)
Date: 2011-11-30 03:46

Message:
what is the expected behaviour?

i don't think you can natively write YUV-images in TIF; JPEG uses their own
colorspace anyhow.

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