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[Mac] CGDisplayBounds signature now matches Mac ABI

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This resolves a crash in CGDisplayBounds when running through monokick.
This commit is contained in:
thefiddler 2014-04-03 23:19:31 +02:00
parent ffb7bd8a4c
commit cf3a30d024
1 changed files with 14 additions and 2 deletions
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14
Source/OpenTK/Platform/MacOS/Carbon/QuartzDisplayServicesAPI.cs
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@ -69,8 +69,20 @@ namespace OpenTK.Platform.MacOS.Carbon
[DllImport(appServices,EntryPoint="CGMainDisplayID")]
internal static extern IntPtr MainDisplayID();
// Note: sizeof(HIRect) == 16, which is larger than 8 bytes.
// The x86 and x64 Mac ABIs pass such structs as pointers in the
// first parameter slot. This is normally handled automatically
// by gcc/clang, but here we have to do it ourselves.
// See "Listing 4" on https://developer.apple.com/library/mac/documentation/DeveloperTools/Conceptual/LowLevelABI/130-IA-32_Function_Calling_Conventions/IA32.html#//apple_ref/doc/uid/TP40002492-SW3
internal unsafe static HIRect DisplayBounds(IntPtr display)
{
HIRect rect;
DisplayBounds(out rect, display);
return rect;
}
[DllImport(appServices, EntryPoint = "CGDisplayBounds")]
internal unsafe static extern HIRect DisplayBounds(IntPtr display);
unsafe static extern void DisplayBounds(out HIRect rect, IntPtr display);
[DllImport(appServices,EntryPoint="CGDisplayPixelsWide")]
internal static extern int DisplayPixelsWide(IntPtr display);