Details
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Bug
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Resolution: Fixed
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P2: Important
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6.5.3, 6.6.1
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None
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Windows 11, Qt 6.6.1, MSVC compiler
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Windows
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c0a448d5c (dev), 2f59eee2b (6.7), 82fff69aa (6.6), b5a952fb2 (tqtc/lts-6.5), 5c4800a40 (tqtc/lts-6.2)
Description
When converting an ARGB32 image to RGBA64 and then to RGBA16FPX4 I get a wrong result compared to converting the ARGB32 to RGBA16FPX4 directly (see attached images).
I have the same problem in the conversion to RGBA32FPX4.
Furthermore, in the conversion from RGBA64 to RGBA16FPx4 I also have a different result if I use "convertToFormat()" instead of "convertTo()" (the second one give the correct image).
The problem does not exist using the same QT version on Mac M1.
I attached also the program used to generate the screenshots.
Attachments
| For Gerrit Dashboard: QTBUG-120614 | ||||||
|---|---|---|---|---|---|---|
| # | Subject | Branch | Project | Status | CR | V |
| 529110,3 | Fix premultiply of RGB64 formats | dev | qt/qtbase | Status: MERGED | +2 | 0 |
| 529682,2 | Fix premultiply of RGB64 formats | 6.7 | qt/qtbase | Status: MERGED | +2 | 0 |
| 530185,2 | Fix premultiply of RGB64 formats | 6.6 | qt/qtbase | Status: MERGED | +2 | 0 |
| 530310,2 | Fix premultiply of RGB64 formats | tqtc/lts-6.5 | qt/tqtc-qtbase | Status: MERGED | +2 | 0 |
| 530599,2 | Fix premultiply of RGB64 formats | tqtc/lts-6.2 | qt/tqtc-qtbase | Status: MERGED | +2 | 0 |