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ffi 1.27: uikit_read_screen_scale via #objc_call

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Third Phase 1D cluster. `UIScreen.mainScreen.nativeScale` chain reads
through `#objc_call(*void)` + `#objc_call(f64)`. First standalone
`#objc_call(f64)` exercise — `f64` returns had only been covered
indirectly by the 4×f64 UIEdgeInsets HFA path. Net -4 lines.

iOS-sim chess regression smoke: sharp text rendering + accurate touch
hit-testing both confirm `plat.dpi_scale` is being populated correctly
through the new path.
This commit is contained in:
agra
2026-05-19 19:33:52 +03:00
parent 3518d0ee26
commit 4844f57968
1 changed files with 3 additions and 7 deletions
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10
library/modules/platform/uikit.sx
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@@ -343,13 +343,9 @@ uikit_register_classes :: () {
// (that's where the gles path picks the scale up).
uikit_read_screen_scale :: (plat: *UIKitPlatform) {
inline if OS != .ios { return; }
UIScreen := objc_getClass("UIScreen".ptr);
sel_main_screen := sel_registerName("mainScreen".ptr);
sel_native_scale := sel_registerName("nativeScale".ptr);
msg_o : (*void, *void) -> *void = xx objc_msgSend;
msg_d : (*void, *void) -> f64 = xx objc_msgSend;
screen := msg_o(UIScreen, sel_main_screen);
scale_d : f64 = msg_d(screen, sel_native_scale);
UIScreen := objc_getClass("UIScreen".ptr);
screen := #objc_call(*void)(UIScreen, "mainScreen");
scale_d := #objc_call(f64)(screen, "nativeScale");
plat.dpi_scale = xx scale_d;
}