| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0013266 | Lazarus | LCL | public | 2009-03-02 15:42 | 2011-12-01 11:23 |
| Reporter | R.D. | Assigned To | Marc Weustink | ||
| Priority | normal | Severity | minor | Reproducibility | always |
| Status | closed | Resolution | fixed | ||
| Product Version | 0.9.27 (SVN) | Product Build | |||
| Target Version | 1.0.0 | Fixed in Version | 0.9.29 (SVN) | ||
| Summary | 0013266: Improper painting of PNG picture | ||||
| Description | loading png picture in Example\imgview, and it painting incorrect | ||||
| Tags | No tags attached. | ||||
| Fixed in Revision | r25258 | ||||
| LazTarget | 1.0 | ||||
| Widgetset | |||||
| Attached Files |
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2009-03-02 15:42
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Dragon.png (10,685 bytes) |
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What a strange file ! it looks differently in any program I use : in paint, in firefox in infranview - in each image is different! |
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The image is transparent, you might see a different background. Nice image btw, i'll add it to my testset |
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2009-07-17 22:04
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imgview_dragon.gif (12,531 bytes) |
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With today's version on win32 with example project imgview it looks like this. (see upload imgview_dragon.gif). Some how it looks like the negative of the original example. |
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I've seen under qt that png's looks strange (more lighter than it should be). My png's are usual kde icons (16x16) in TImageList. |
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There are 2 bugs involved. When an rawimage was read as grayscale, the alpha channels was discarded by the LazIntfImage. I fixed that. The second bug is fpimage related. When reading gray+alpha, then channels are swapped, so you get alpha+gray that gives the inverted look. I'll try to fix this |
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The next lazarus version will depend on new fpc version. So it is ok to depend your future fix. |
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You also need a fpc version later than 2.4.0 |
