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08 September 2022, 17:28
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#1 |
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Registered User
Join Date: Mar 2020
Location: Duesseldorf / Germany
Posts: 36
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Problems with Scroll and DisplayLibrary
Hi there,
I've some problem with the Scroll command and DisplayLibrary. If I use Scroll with slice all looks fine. If I use Scroll with InitCopList I get color glitches. I've attached both scripts with the image in the zip archive. What is the issue? Last edited by AmiNju; 08 September 2022 at 17:50. |
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08 September 2022, 18:20
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#2 |
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Registered User
Join Date: Jun 2009
Location: Dublin, then Glasgow
Posts: 6,381
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I'm not sure the Scroll itself is the issue if the originally loaded portion of the bitmap is also showing glitches. A quick look at the code makes me thing you're setting up the Coplist with 6 bitplanes, but the bitmap is 5 bitplanes. So the coplist is going to display an extra plane of garbage, which I guess is what you're seeing there. Try $15 instead of $16 for the Coplist flags parameter.
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08 September 2022, 18:37
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#3 |
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Registered User
Join Date: Mar 2020
Location: Duesseldorf / Germany
Posts: 36
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OMG....you're right. I've changed to 6 Bitplanes in the BitMap command and now the garbage is away...rookie mistake...
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