[Poppler-bugs] [Bug 59179] Some colors appear grey/black, whereas it works with Adobe Reader

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=59179

Adrian Johnson <ajohnson at redneon.com> changed:

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  Attachment #73562|0                           |1
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--- Comment #6 from Adrian Johnson <ajohnson at redneon.com> ---
Created attachment 73644
  --> https://bugs.freedesktop.org/attachment.cgi?id=73644&action=edit
support uncolored tiling patterns

It turns out that we can't use cairo_mask for uncolored patterns since
cairo_mask uses the alpha and not the luminosity to mask the source.

This patch uses the same solution as uncolored patterns in PSOutputDev. It adds
a flag to indicate we are rendering an uncolored pattern and disables setting
the color when the flag is true.

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