[ wxwindows-Bugs-1843612 ] wxQuantize scatters pixels

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Bugs item #1843612, was opened at 2007-12-03 21:17
Message generated for change (Comment added) made by troelsk
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Category: Common
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: troelsk (troelsk)
Assigned to: Nobody/Anonymous (nobody)
Summary: wxQuantize scatters pixels

Initial Comment:

wxQuantize scatters pixels in certain images, see attachments.

Problem seen with wxMSW 2.8.7, wxGTK 2.8.7 and wxMSW 2.9 trunk.

How to reproduce:
1. Apply patch to image sample (adds call to wxQuantize)
2. Run sample
3. Ctrl+O -> select one of the attachments
4. The solid blueish color has become dotted

Note:
Passing different parameters (different flags, different color counts) appears to change nothing:

wxQuantize::Quantize(image, temp, &pPalette, 256, 0, wxQUANTIZE_FILL_DESTINATION_IMAGE|wxQUANTIZE_RETURN_8BIT_DATA)


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>Comment By: troelsk (troelsk)
Date: 2007-12-03 21:22

Message:
Logged In: YES 
user_id=1290727
Originator: YES

File Added: pixeltrail.patch

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Comment By: troelsk (troelsk)
Date: 2007-12-03 21:19

Message:
Logged In: YES 
user_id=1290727
Originator: YES

File Added: Weetabix Vs The Titchies.png

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=109863&aid=1843612&group_id=9863