08431: Sinclair default screen configuration

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
08431	Graphics	Minor	Always	Oct 10, 2022, 18:06	Oct 21, 2022, 00:04

Tester	holub	View Status	Public	Platform
Assigned To		Resolution	Invalid report	OS
Status [?]	Closed			Driver	sinclair/spectrum.cpp
Version	0.248	Fixed in Version		Build
		Fixed in Git Commit		Github Pull Request #

Summary	08431: Sinclair default screen configuration
Description	In MAME Sinclair and clones are configured with border 48:48:48:56. That gives maximum viability for hidden parts of the screen but changes default proportions of the screen 4:3 which leads to not perfect pixels on the screen. Part of this border is not available for users on real TV screens. Configurations allows user to deal with this issue but creates weak UX. We can change proportions to 4:3 by default easily but automated testing will receive a lot false positive screen comparisons. I will be happy to fix this if green light from testing team received.
Steps To Reproduce
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Github Commit

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No.20598 ICEknight Tester Oct 11, 2022, 10:00 edited on: Oct 11, 2022, 10:11	Remember that the Spectrum family outputs a PAL frame and thus things will look slightly squished when stretched to the correct 4:3 aspect ratio, so the actual on screen pixels won't be perfectly square. I've just compared MAME with a real Spectrum and the aspect ratio seems pretty spot-on, thanks to it outputting its full frame: https://imgur.com/a/BRRTZOx Real Spectrum +2: https://i.imgur.com/wPAT3nh.png MAME: https://i.imgur.com/WFCDvmB.png Comparison: https://i.imgur.com/uVK84lC.png
No.20600 holub Tester Oct 14, 2022, 13:47	This is a good argument. I missed this
No.20647 ICEknight Tester Oct 20, 2022, 15:17	I think this can be closed already?
No.20650 Robbbert Senior Tester Oct 21, 2022, 00:04	Closed as requested.