[PATCH 0/2] MR7282: winemac: Fix issues found with Main Thread Checker

[Brendan Shanks (＠bshanks)]

Fix 3 calls to AppKit that were not being done from the main thread, found using Apple's [Main Thread Checker](https://developer.apple.com/documentation/xcode/diagnosing-memory-thread-and...).

I used it with Wine by dlopen()ing `/Applications/Xcode.app/Contents/Developer/usr/lib/libMainThreadChecker.dylib` in `macdrv_init()`, commenting out the `SIGABRT` handler in `signal_x86_64.c`, and setting `MTC_CRASH_ON_REPORT=1` so the process will `abort()` and eventually generate a crash log+backtrace.

[PATCH 1/2] winemac: [NSWindow setAlphaValue:] must be called from the main thread.

[Brendan Shanks]

From: Brendan Shanks

---
 dlls/winemac.drv/cocoa_window.m | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/dlls/winemac.drv/cocoa_window.m b/dlls/winemac.drv/cocoa_window.m
index ce8b571fa23..4c15e211442 100644
--- a/dlls/winemac.drv/cocoa_window.m
+++ b/dlls/winemac.drv/cocoa_window.m
@@ -3618,7 +3618,9 @@ void macdrv_set_window_alpha(macdrv_window w, CGFloat alpha)
 {
     WineWindow* window = (WineWindow*)w;

-    [window setAlphaValue:alpha];
+    OnMainThread(^{
+        [window setAlphaValue:alpha];
+    });
 }
 }

[PATCH 2/2] winemac: [NSWindow contentView] must be called from the main thread.

[Brendan Shanks]

From: Brendan Shanks

---
 dlls/winemac.drv/cocoa_opengl.m |  4 +++-
 dlls/winemac.drv/cocoa_window.m | 16 ++++++++--------
 2 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/dlls/winemac.drv/cocoa_opengl.m b/dlls/winemac.drv/cocoa_opengl.m
index 5e3ad03a8b2..6a88519e5db 100644
--- a/dlls/winemac.drv/cocoa_opengl.m
+++ b/dlls/winemac.drv/cocoa_opengl.m
@@ -51,6 +51,7 @@ - (void) dealloc
     + (NSView*) dummyView
     {
         static NSWindow* dummyWindow;
+        static NSView* dummyWindowContentView;
         static dispatch_once_t once;

dispatch_once(&once, ^{
@@ -59,10 +60,11 @@ + (NSView*) dummyView
                                                           styleMask:NSWindowStyleMaskBorderless
                                                             backing:NSBackingStoreBuffered
                                                               defer:NO];
+                dummyWindowContentView = dummyWindow.contentView;
             });
         });

-        return dummyWindow.contentView;
+        return dummyWindowContentView;
     }

// Normally, we take care that disconnecting a context from a view doesn't
diff --git a/dlls/winemac.drv/cocoa_window.m b/dlls/winemac.drv/cocoa_window.m
index 4c15e211442..7aa3dbf81c7 100644
--- a/dlls/winemac.drv/cocoa_window.m
+++ b/dlls/winemac.drv/cocoa_window.m
@@ -3783,16 +3783,16 @@ void macdrv_set_view_superview(macdrv_view v, macdrv_view s, macdrv_window w, ma
 {
 @autoreleasepool
 {
-    WineContentView* view = (WineContentView*)v;
-    WineContentView* superview = (WineContentView*)s;
-    WineWindow* window = (WineWindow*)w;
-    WineContentView* prev = (WineContentView*)p;
-    WineContentView* next = (WineContentView*)n;
+    OnMainThreadAsync(^{
+        WineContentView* view = (WineContentView*)v;
+        WineContentView* superview = (WineContentView*)s;
+        WineWindow* window = (WineWindow*)w;
+        WineContentView* prev = (WineContentView*)p;
+        WineContentView* next = (WineContentView*)n;

-    if (!superview)
-        superview = [window contentView];
+        if (!superview)
+            superview = [window contentView];

-    OnMainThreadAsync(^{
         if (superview == [view superview])
         {
             NSArray* subviews = [superview subviews];

[PATCH 0/2] MR7282: winemac: Fix issues found with Main Thread Checker - approved

[Tim Clem (＠tclem)]

This merge request was approved by Tim Clem.