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ID |
Category |
Severity |
Reproducibility |
Date Submitted |
Last Update |
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0007790 |
[Squeak] Any |
major |
always |
10-08-13 01:26 |
10-08-13 01:28 |
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Reporter |
tim |
View Status |
public |
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Assigned To |
tim |
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Priority |
urgent |
Resolution |
fixed |
Platform |
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Status |
closed |
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OS |
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Projection |
none |
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OS Version |
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ETA |
none |
Fixed in Version |
4.4 |
Product Version |
4.4 |
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Product Build |
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Summary |
0007790: Raspberry Pi related faster bitblt code problem with tallyIntoMap combination rule |
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Description |
Reported issue was some PNG file provided as media of Scratch suddenly loading as invisible sprites.
Debugging the image showed a problem in the colorReduced method because the tallyIntoMap bitblt rule was producing incorrect values. After much staring at code we discovered a minuscule typo that had a constant in BitBltSimulation>>copyBits:Fallback: as 16r3FFF instead of 16r7FFF and thus the cmMask value used to write into the map array was wrong. |
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Steps To Reproduce |
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Additional Information |
Fixed in VMMaker-tpr.326 |
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Attached Files |
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