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NSGL: Update current display for display link

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This solution of one display link per window is far from ideal but is
still better than no solution.

As a side-effect this fixes swap interval breaking being ignored for
occluded windows on earlier versions of macOS.

Fixes #680.
Fixes #1337.
Related to #1417.
Fixes #1435.
This commit is contained in:
Camilla Löwy 2019-02-21 00:35:53 +01:00
parent f8bcc7e65c
commit 8d7e5cdb49
5 changed files with 23 additions and 9 deletions
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2
src/cocoa_monitor.m
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@ -32,8 +32,6 @@
#include <math.h>
#include <IOKit/graphics/IOGraphicsLib.h>
#include <CoreVideo/CVBase.h>
#include <CoreVideo/CVDisplayLink.h>
#include <ApplicationServices/ApplicationServices.h>

3
src/cocoa_platform.h
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@ -28,6 +28,9 @@
#include <dlfcn.h>
#include <Carbon/Carbon.h>
#include <CoreVideo/CVBase.h>
#include <CoreVideo/CVDisplayLink.h>
#if defined(__OBJC__)
#import <Cocoa/Cocoa.h>
#else

6
src/cocoa_window.m
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@ -338,6 +338,12 @@ static const NSRange kEmptyRange = { NSNotFound, 0 };
_glfwInputWindowFocus(window, GLFW_FALSE);
}
- (void)windowDidChangeScreen:(NSNotification *)notification
{
if (window->context.source == GLFW_NATIVE_CONTEXT_API)
_glfwUpdateDisplayLinkDisplayNSGL(window);
}
@end

3
src/nsgl_context.h
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@ -27,8 +27,6 @@
#define _GLFW_PLATFORM_CONTEXT_STATE _GLFWcontextNSGL nsgl
#define _GLFW_PLATFORM_LIBRARY_CONTEXT_STATE _GLFWlibraryNSGL nsgl
#import <CoreVideo/CoreVideo.h>
#include <stdatomic.h>
@ -61,4 +59,5 @@ GLFWbool _glfwCreateContextNSGL(_GLFWwindow* window,
const _GLFWctxconfig* ctxconfig,
const _GLFWfbconfig* fbconfig);
void _glfwDestroyContextNSGL(_GLFWwindow* window);
void _glfwUpdateDisplayLinkDisplayNSGL(_GLFWwindow* window);

18
src/nsgl_context.m
View File

@ -367,6 +367,8 @@ GLFWbool _glfwCreateContextNSGL(_GLFWwindow* window,
[window->context.nsgl.object setView:window->ns.view];
window->context.nsgl.swapIntervalCond = [NSCondition new];
window->context.makeCurrent = makeContextCurrentNSGL;
window->context.swapBuffers = swapBuffersNSGL;
window->context.swapInterval = swapIntervalNSGL;
@ -378,16 +380,22 @@ GLFWbool _glfwCreateContextNSGL(_GLFWwindow* window,
CVDisplayLinkSetOutputCallback(window->context.nsgl.displayLink,
&displayLinkCallback,
window);
CVDisplayLinkSetCurrentCGDisplayFromOpenGLContext(window->context.nsgl.displayLink,
(CGLContextObj) window->context.nsgl.object,
(CGLPixelFormatObj) window->context.nsgl.pixelFormat);
CVDisplayLinkStart(window->context.nsgl.displayLink);
window->context.nsgl.swapIntervalCond = [NSCondition new];
_glfwUpdateDisplayLinkDisplayNSGL(window);
return GLFW_TRUE;
}
void _glfwUpdateDisplayLinkDisplayNSGL(_GLFWwindow* window)
{
CGDirectDisplayID displayID =
[[[window->ns.object screen] deviceDescription][@"NSScreenNumber"] unsignedIntValue];
if (!displayID)
return;
CVDisplayLinkSetCurrentCGDisplay(window->context.nsgl.displayLink, displayID);
}
//////////////////////////////////////////////////////////////////////////
////// GLFW native API //////