On 2024/03/22 22:06, Peter Maydell wrote:
On Mon, 18 Mar 2024 at 09:02, Akihiko Odaki <akihiko.od...@daynix.com> wrote:

Cocoa automatically zooms for a HiDPI display like Retina and makes
the display blurry. Revert the automatic zooming.

Signed-off-by: Akihiko Odaki <akihiko.od...@daynix.com>
---
  ui/cocoa.m | 9 ++++++---
  1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/ui/cocoa.m b/ui/cocoa.m
index fa879d7dcd4b..c5b3c28000ff 100644
--- a/ui/cocoa.m
+++ b/ui/cocoa.m
@@ -522,7 +522,10 @@ - (void) resizeWindow
      [[self window] setContentAspectRatio:NSMakeSize(screen.width, 
screen.height)];

      if (!([[self window] styleMask] & NSWindowStyleMaskResizable)) {
-        [[self window] setContentSize:NSMakeSize(screen.width, screen.height)];
+        CGFloat width = screen.width / [[self window] backingScaleFactor];
+        CGFloat height = screen.height / [[self window] backingScaleFactor];
+
+        [[self window] setContentSize:NSMakeSize(width, height)];
          [[self window] center];
      } else if ([[self window] styleMask] & NSWindowStyleMaskFullScreen) {
          [[self window] setContentSize:[self screenSafeAreaSize]];
@@ -575,8 +578,8 @@ - (void) updateUIInfoLocked

      info.xoff = 0;
      info.yoff = 0;
-    info.width = frameSize.width;
-    info.height = frameSize.height;
+    info.width = frameSize.width * [[self window] backingScaleFactor];
+    info.height = frameSize.height * [[self window] backingScaleFactor];

      dpy_set_ui_info(dcl.con, &info, TRUE);
  }

Could we / should we use convertRectToBacking and convertRectFromBacking
rather than doing the multiply/divide ourselves? The docs seem to
recommend against directly using backingScaleFactor when possible.

Sorry, I forgot to reply this.

Unfortunately, Cocoa does not provide a method to scale NSSize while convertRectToBacking and convertRectFromBacking work with NSRect, which is the reason why I opted for manual scaling here.

Regards,
Akihiko Odaki

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