[Poppler-bugs] [Bug 34055] New: Rendered output is currently restricted to 8 bit/channel

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=34055

           Summary: Rendered output is currently restricted to 8
                    bit/channel
           Product: poppler
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: general
        AssignedTo: poppler-bugs at lists.freedesktop.org
        ReportedBy: hvengel at astound.net


All color transforms currently restrict output to 8 bits/channel because this
is hard coded.  This is probably acceptable for monitor output although with
display port we are starting to see monitors that support higher bit depths (10
and 12 bits/channel currently but display port allows for up to 16
bits/channel).  

The CUPS pdftoraster filter will need the ability to set the bit depth to
either 8 or 16 bits/channel but a more general solution would allow the calling
app to set any output format that is supported by the CMS including floating
point formats.  So this will likely require adding the ability to set this to
the poppler API.

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