Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

[OSX] Draw immediately instead of waiting for the event loop. #8707

Merged
merged 3 commits into from Feb 20, 2021

Conversation

michicc
Copy link
Member

@michicc michicc commented Feb 20, 2021

Motivation / Problem

Using the event loop for displaying introduces an indeterminate delay. As we have now have a draw-tick, we can draw immediately.

Description

#8702 for OSX basically.

Limitations

The whole window compositor is still somewhat coupled to screen refresh, so it might not actually cause any visible change.

Checklist for review

Some things are not automated, and forgotten often. This list is a reminder for the reviewers.

  • The bug fix is important enough to be backported? (label: 'backport requested')
  • This PR affects the save game format? (label 'savegame upgrade')
  • This PR affects the GS/AI API? (label 'needs review: Script API')
    • ai_changelog.hpp, gs_changelog.hpp need updating.
    • The compatibility wrappers (compat_*.nut) need updating.
  • This PR affects the NewGRF API? (label 'needs review: NewGRF')

When drawing an 8bpp screen buffer, palette resolving was done for each
dirty rectangle. In areas with high activity, this would mean a pixel might
have been resolved multiple times. Also, if too many individual updates
were queued, the whole screen would be refreshed, even if unnecessary.

All other drivers only keep one overall dirty rect, so do it here as well.
@michicc michicc changed the title Codechange: [OSX] Only keep a total dirty rect for drawing. [OSX] Draw immediately instead of waiting for the event loop. Feb 20, 2021
@michicc
Copy link
Member Author

michicc commented Feb 20, 2021

New title

src/video/cocoa/cocoa_v.mm Show resolved Hide resolved
src/video/cocoa/cocoa_v.mm Outdated Show resolved Hide resolved
@andythenorth
Copy link
Contributor

Tested for a few minutes, no visible change for me (no gain, but also nothing regressed as far as I can tell) :)

@michicc michicc merged commit d16dc22 into OpenTTD:master Feb 20, 2021
@michicc michicc deleted the pr/osx_display branch February 20, 2021 20:14
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

None yet

4 participants