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Remove: Support for macOS before 10.9 #8025

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@nielsmh
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nielsmh commented Feb 26, 2020

Remove all assumptions and code paths that are only relevant for builds intended to support macOS earlier than 10.9. This simplifies the Cocoa video driver a lot and makes it much easier to follow the code.

So far this is barely just smoke-tested on my own machine with macOS 10.13.

@orudge
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orudge commented Feb 27, 2020

If we're dropping support for <10.9, the enable_osx_g5-related stuff can go too, since OS X hasn't run on PPC since 10.5.

@glx22
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glx22 commented Feb 29, 2020

If I correctly understand https://developer.apple.com/documentation/coreservices/carbon_core/gestalt_manager?language=objc the following blocks can be removed too

#if (MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_10)
typedef struct {
NSInteger majorVersion;
NSInteger minorVersion;
NSInteger patchVersion;
} OTTDOperatingSystemVersion;
#define NSOperatingSystemVersion OTTDOperatingSystemVersion
#endif

#if (MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_10)
SInt32 systemVersion, version_major, version_minor, version_bugfix;
if (Gestalt(gestaltSystemVersion, &systemVersion) == noErr) {
if (systemVersion >= 0x1040) {
if (Gestalt(gestaltSystemVersionMajor, &version_major) == noErr) *return_major = (int)version_major;
if (Gestalt(gestaltSystemVersionMinor, &version_minor) == noErr) *return_minor = (int)version_minor;
if (Gestalt(gestaltSystemVersionBugFix, &version_bugfix) == noErr) *return_bugfix = (int)version_bugfix;
} else {
*return_major = (int)(GB(systemVersion, 12, 4) * 10 + GB(systemVersion, 8, 4));
*return_minor = (int)GB(systemVersion, 4, 4);
*return_bugfix = (int)GB(systemVersion, 0, 4);
}
}
#endif

That should remove the deprecated warnings.

And I think some other conditional stuff in this file can be removed too.

@michicc
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michicc commented Feb 29, 2020

Unfortunately, the alternative to Gestalt was only introduced in 10.10 (see https://developer.apple.com/documentation/foundation/nsprocessinfo/1410906-operatingsystemversion?language=objc). 10.9 has no official, non-deprecated system function.

@nielsmh
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nielsmh commented Apr 10, 2020

Closing in favour of #8078 - I don't see myself finishing or cleaning up this one any time soon.

@nielsmh nielsmh closed this Apr 10, 2020
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