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Brightness (Apple): code optimise and fix mem leaks

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This commit is contained in:
李通洲
2024-01-05 13:20:47 +08:00
parent 396112e8ea
commit 92a6b01133
1 changed files with 14 additions and 11 deletions
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src/detection/brightness/brightness_apple.c
+14 -11
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@@ -61,24 +61,27 @@ static const char* detectWithDdcci(FF_MAYBE_UNUSED const FFDisplayServerResult*
if(IOServiceGetMatchingServices(MACH_PORT_NULL, IOServiceMatching("DCPAVServiceProxy"), &iterator) != kIOReturnSuccess)
return "IOServiceGetMatchingServices() failed";
FF_STRBUF_AUTO_DESTROY location = ffStrbufCreate();
io_registry_entry_t registryEntry;
while((registryEntry = IOIteratorNext(iterator)) != 0)
{
CFMutableDictionaryRef properties;
if(IORegistryEntryCreateCFProperties(registryEntry, &properties, kCFAllocatorDefault, kNilOptions) != kIOReturnSuccess)
{
IOObjectRelease(registryEntry);
continue;
FF_CFTYPE_AUTO_RELEASE CFBooleanRef IOAVServiceUserInterfaceSupported = IORegistryEntryCreateCFProperty(registryEntry, CFSTR("IOAVServiceUserInterfaceSupported"), kCFAllocatorDefault, kNilOptions);
if (IOAVServiceUserInterfaceSupported && !CFBooleanGetValue(IOAVServiceUserInterfaceSupported))
{
// IOAVServiceCreateWithService won't work
IOObjectRelease(registryEntry);
continue;
}
}
ffStrbufClear(&location);
if(ffCfDictGetString(properties, CFSTR("Location"), &location) || ffStrbufEqualS(&location, "Embedded"))
{
// Builtin display should be handled by DisplayServices
IOObjectRelease(registryEntry);
continue;
FF_CFTYPE_AUTO_RELEASE CFStringRef location = IORegistryEntryCreateCFProperty(registryEntry, CFSTR("Location"), kCFAllocatorDefault, kNilOptions);
if (location && CFStringCompare(location, CFSTR("Embedded"), 0) == 0)
{
// Builtin display should be handled by DisplayServices
IOObjectRelease(registryEntry);
continue;
}
}
FF_CFTYPE_AUTO_RELEASE IOAVServiceRef service = IOAVServiceCreateWithService(kCFAllocatorDefault, (io_service_t) registryEntry);