Bug 128300

Summary:	Draw: PNG export (selection) generates black images (L0 6.3.1.2 and LO 6.3.2.2)
Product:	LibreOffice	Reporter:	Grantler <pschsch>
Component:	Draw	Assignee:	Not Assigned <libreoffice-bugs>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	ilmari.lauhakangas
Priority:	medium
Version:	Inherited From OOo
Hardware:	All
OS:	All
Whiteboard:
Crash report or crash signature:		Regression By:
Attachments:	Draw file including original images and results of export on LO 6.2.x and LO 6.3.x

Description Grantler 2019-10-21 15:20:39 UTC

Description:
A sample of different PNG images and one Draw object (selection) are exported into PNG format.
LO 6.2.7.1 and LO 6.2.8.1 export correctly.
LO 6.3.1.2 and LO 6.3.2.2 export PNG images as black rectangles.

Steps to Reproduce:
1. See attached file with original images and export results.
2. Export (selection) on LO 6.2.x version (okay).
3. Export (selection) on LO 6.3.x version (black rectangles).

Actual Results:
Version LO 6.2.x works correctly.

Expected Results:
Version 6.3.x works faultily.


Reproducible: Always


User Profile Reset: Yes



Additional Info:

Comment 1 Grantler 2019-10-21 15:22:08 UTC

Created attachment 155203 [details]
Draw file including original images and results of export on LO 6.2.x and LO 6.3.x

Comment 2 Durgapriyanka 2019-10-21 17:55:50 UTC

Thank you for reporting the bug. I can reproduce the bug in 
LibreOffice 3.3.0 
OOO330m19 (Build:6)
tag libreoffice-3.3.0.4

and

Version: 6.3.0.0.alpha0+
Build ID: b6b28931435e44aca92b8c0e1659f701e3ed1a87
CPU threads: 2; OS: Windows 6.1; UI render: default; VCL: win; 
TinderBox: Win-x86@42, Branch:master, Time: 2019-01-30_06:57:04
Locale: en-US (en_US); UI-Language: en-US
Calc: threaded

Comment 3 Buovjaga 2019-11-05 13:42:54 UTC

NEW per last comment.

Comment 4 Buovjaga 2019-11-08 19:20:58 UTC

You are using linked images in the file, so we cannot test. Do you get the same result, if you use embedded images (which is the default way)?

Comment 5 Grantler 2019-11-10 08:39:01 UTC

I regularly use linked images because of "cascading" some effects from other image processing programs. If details of one image (not of each one) are altered the generated new image (export) can contain this alteration.

-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Problem seems to be solved on LO 6.3.3.2
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

BTW:
Today I checked once more on LO 6.3.3.2: No faulty results any more (linked or embedded images did not matter)! (OS LinuxMint 19.2-64 Mate)

Thanks a lot for repairing that function!

Comment 6 Buovjaga 2019-11-10 14:18:08 UTC

Hey, that's great to hear. Let's close.