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Cocoa: Replace display link with IOKit query

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This removes the final dependency on CoreVideo, using a display link to
get the refresh rate of monitors where Core Graphics report a refresh
rate of zero.  Instead we now query the I/O registry directly, similarly
to what the display link does at creation.

Thanks to @OneSadCookie for pointers to this solution.

(cherry picked from commit 4ec7daf3e9)
This commit is contained in:
Camilla Löwy
2019-12-25 17:09:38 +01:00
committed by Camilla Löwy
parent bb8ed627bf
commit 9fc5fd1375
5 changed files with 64 additions and 23 deletions
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docs/build.dox
+3 -3
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@@ -354,8 +354,8 @@ If you are using the dynamic library version of GLFW, add it to the project
dependencies.
If you are using the static library version of GLFW, add it and the Cocoa,
OpenGL, IOKit and CoreVideo frameworks to the project as dependencies. They can
all be found in `/System/Library/Frameworks`.
OpenGL and IOKit frameworks to the project as dependencies. They can all be
found in `/System/Library/Frameworks`.
@subsection build_link_osx With command-line on macOS
@@ -369,7 +369,7 @@ the `-l` and `-framework` switches.
If you are using the dynamic GLFW library, which is named `libglfw.3.dylib`, do:
@code{.sh}
cc -o myprog myprog.c -lglfw -framework Cocoa -framework OpenGL -framework IOKit -framework CoreVideo
cc -o myprog myprog.c -lglfw -framework Cocoa -framework OpenGL -framework IOKit
@endcode
If you are using the static library, named `libglfw3.a`, substitute `-lglfw3`