[Poppler-bugs] [Bug 103041] New: [PATCH] Arthur: implement rudimentary drawSoftMaskedImage method

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103041

            Bug ID: 103041
           Summary: [PATCH] Arthur: implement rudimentary
                    drawSoftMaskedImage method
           Product: poppler
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: arthur backend
          Assignee: poppler-bugs at lists.freedesktop.org
          Reporter: oliver.sander at tu-dresden.de

Created attachment 134571
  --> https://bugs.freedesktop.org/attachment.cgi?id=134571&action=edit
Patch that implements drawSoftMaskedImage

Currently, the Arthur backend does not implement the drawSoftMaskedImage
method. In particular, this leads to alpha values being tacitly ignored when
images have them.  This patch implements the method, and therewith fixes
rendering of images with an alpha channel (an example is attached).

I suppose that the implementation is not as general as it should be, but
without further test documents I have not clue how exactly it needs to be
generalized.

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