Chip Davis : winemac.drv: Enable layer-backed views.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: a5cf847aa45c38bae1500ef19a9bac38bbd8d5ba
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=a5cf847aa45c38bae1500ef19...

Author: Chip Davis <cdavis(a)codeweavers.com>
Date:   Wed Sep  1 09:28:20 2021 -0500

winemac.drv: Enable layer-backed views.

Signed-off-by: Chip Davis <cdavis(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/winemac.drv/cocoa_window.m | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/dlls/winemac.drv/cocoa_window.m b/dlls/winemac.drv/cocoa_window.m
index 29ac32d6be0..29a5abe6344 100644
--- a/dlls/winemac.drv/cocoa_window.m
+++ b/dlls/winemac.drv/cocoa_window.m
@@ -311,6 +311,16 @@ static CVReturn WineDisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTi
 @end
 
 
+#ifndef MAC_OS_X_VERSION_10_14
+(a)protocol NSViewLayerContentScaleDelegate <NSObject>
+(a)optional
+
+    - (BOOL) layer:(CALayer*)layer shouldInheritContentsScale:(CGFloat)newScale fromWindow:(NSWindow*)window;
+
+(a)end
+#endif
+
+
 @interface WineBaseView : NSView
 @end
 
@@ -327,7 +337,7 @@ static CVReturn WineDisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTi
 #endif
 
 
-(a)interface WineContentView : WineBaseView <NSTextInputClient>
+(a)interface WineContentView : WineBaseView <NSTextInputClient, NSViewLayerContentScaleDelegate>
 {
     NSMutableArray* glContexts;
     NSMutableArray* pendingGlContexts;
@@ -339,6 +349,7 @@ static CVReturn WineDisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTi
     NSMutableAttributedString* markedText;
     NSRange markedTextSelection;
 
+    BOOL _retinaMode;
     int backingSize[2];
 
 #ifdef HAVE_METAL_METAL_H
@@ -688,9 +699,15 @@ static CVReturn WineDisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTi
         [self setWantsBestResolutionOpenGLSurface:mode];
         [self updateGLContexts];
 
+        _retinaMode = !!mode;
         [super setRetinaMode:mode];
     }
 
+    - (BOOL) layer:(CALayer*)layer shouldInheritContentsScale:(CGFloat)newScale fromWindow:(NSWindow*)window
+    {
+        return (_retinaMode || newScale == 1.0);
+    }
+
     - (void) viewDidHide
     {
         [super viewDidHide];
@@ -1002,6 +1019,7 @@ static CVReturn WineDisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTi
         contentView = [[[WineContentView alloc] initWithFrame:NSZeroRect] autorelease];
         if (!contentView)
             return nil;
+        [contentView setWantsLayer:YES];
         [contentView setAutoresizesSubviews:NO];
 
         /* We use tracking areas in addition to setAcceptsMouseMovedEvents:YES
@@ -3573,6 +3591,7 @@ macdrv_view macdrv_create_view(CGRect rect)
         NSNotificationCenter* nc = [NSNotificationCenter defaultCenter];
 
         view = [[WineContentView alloc] initWithFrame:NSRectFromCGRect(cgrect_mac_from_win(rect))];
+        [view setWantsLayer:YES];
         [view setAutoresizesSubviews:NO];
         [view setAutoresizingMask:NSViewNotSizable];
         [view setHidden:YES];