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macOS: Fix SDL_GL_CreateContext/MakeCurrent on non-main threads causing a Main Thread Checker warning when built with Xcode 11 / the macOS 10.15 SDK.

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Fixes bug #4714.
This commit is contained in:
Alex Szpakowski 2019-07-13 17:04:02 -03:00
parent 73536d93ea
commit 8fb8adfc90
3 changed files with 20 additions and 2 deletions
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16
src/video/cocoa/SDL_cocoaopengl.m
View File

@ -95,6 +95,18 @@
if (newWindow) {
SDL_WindowData *windowdata = (SDL_WindowData *)newWindow->driverdata;
NSView *contentview = windowdata->sdlContentView;
/* This should never be nil since sdlContentView is only nil if the
window was created via SDL_CreateWindowFrom, and SDL doesn't allow
OpenGL contexts to be created in that case. However, it doesn't hurt
to check. */
if (contentview == nil) {
/* Prefer to access the cached content view above instead of this,
since as of Xcode 11 + SDK 10.15, [window contentView] causes
Apple's Main Thread Checker to output a warning. */
contentview = [windowdata->nswindow contentView];
}
/* Now sign up for scheduled updates for the new window. */
NSMutableArray *contexts = windowdata->nscontexts;
@ -102,8 +114,8 @@
[contexts addObject:self];
}
if ([self view] != [windowdata->nswindow contentView]) {
[self setView:[windowdata->nswindow contentView]];
if ([self view] != contentview) {
[self setView:contentview];
if (self == [NSOpenGLContext currentContext]) {
[self update];
} else {

1
src/video/cocoa/SDL_cocoawindow.h
View File

@ -113,6 +113,7 @@ struct SDL_WindowData
{
SDL_Window *window;
NSWindow *nswindow;
NSView *sdlContentView; /* nil if window is created via CreateWindowFrom */
NSMutableArray *nscontexts;
SDL_bool created;
SDL_bool inWindowMove;

5
src/video/cocoa/SDL_cocoawindow.m
View File

@ -1307,6 +1307,11 @@ SetupWindowData(_THIS, SDL_Window * window, NSWindow *nswindow, SDL_bool created
data->videodata = videodata;
data->nscontexts = [[NSMutableArray alloc] init];
/* Only store this for windows created by us since the content view might
* get replaced from under us otherwise, and we only need it when the
* window is guaranteed to be created by us (OpenGL contexts). */
data->sdlContentView = created ? [nswindow contentView] : nil;
/* Create an event listener for the window */
data->listener = [[Cocoa_WindowListener alloc] init];