[Poppler-bugs] [Bug 68986] pdftoppm doesn't render eci_altona-test-suite-v2_technical2_x4.pdf correctly

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=68986

--- Comment #6 from Thomas Freitag <Thomas.Freitag at alfa.de> ---
Created attachment 87015
  --> https://bugs.freedesktop.org/attachment.cgi?id=87015&action=edit
Changes in test "C"

(In reply to comment #5)
> Hmmm, with this patch on master, the only changes i can find are in "Q" in
> the spiral, and the colors look worse with the patch than without the patch.
> Can you try? Maybe you uploaded the wrong patch?¿

Oh, I missed the side effects in test "Q", but I don't think that these changes
come due to "knockout" problems. I think the reason for it are blend mode
problems and I hopefully can solve them with a patch for test "G", too. But if
not, I plan to look at the tests step by step. And even if the colors changes a
little bit for test "Q", the rendering result is not perfect either with or
without the patch.

But I'm wondering why You missed the changes in "C". I attach the result with
the patch, s. the second line.
I create this output with
git checkout -f
git pull
git apply 68986.0001.patch
./configure --disable-libopenjpeg

But if You don't want to commit the patches step by step, it's up to You. But
because of the complexity of the splash pipe run implementation all futur
patches will cause probably changes in that area, and it will be harder for me
to check the differences of the several patches. But it's of course doable.

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