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Removed SDL_GetDisplayDPI()

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This function wasn't consistently correct across platforms and devices.

If you want the UI scale factor, you can use display_scale in the structure returned by SDL_GetDesktopDisplayMode(). If you need an approximate DPI, you can multiply this value times 160 on iPhone and Android, and 96 on other platforms.
This commit is contained in:
Sam Lantinga 2023-02-08 15:07:13 -08:00
parent b7c6fec10a
commit 824b9b0a58
28 changed files with 32 additions and 542 deletions
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docs/README-migration.md
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@ -1051,7 +1051,6 @@ SDL_GL_GetDrawableSize() has been removed. SDL_GetWindowSizeInPixels() can be us
The following functions have been renamed:
* SDL_GetClosestDisplayMode() => SDL_GetClosestFullscreenDisplayMode()
* SDL_GetDisplayDPI() => SDL_GetDisplayPhysicalDPI()
* SDL_GetPointDisplayIndex() => SDL_GetDisplayForPoint()
* SDL_GetRectDisplayIndex() => SDL_GetDisplayForRect()
* SDL_GetWindowDisplayIndex() => SDL_GetDisplayForWindow()
@ -1060,6 +1059,7 @@ The following functions have been renamed:
The following functions have been removed:
* SDL_GetClosestFullscreenDisplayMode()
* SDL_GetDisplayDPI() - not reliable across platforms, approximately replaced by multiplying `display_scale` in the structure returned by SDL_GetDesktopDisplayMode() times 160 on iPhone and Android, and 96 on other platforms.
* SDL_GetDisplayMode()
* SDL_GetNumDisplayModes() - replaced with SDL_GetFullscreenDisplayModes()
* SDL_GetNumVideoDisplays() - replaced with SDL_GetDisplays()