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Merge pull request #570 from billhollings/master
Update dependency libraries for SDK 1.1.106.
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| /* | ||
| * MVKOSExtensions.mm | ||
| * | ||
| * Copyright (c) 2014-2019 The Brenwill Workshop Ltd. (http://www.brenwill.com) | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
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| #include "MVKOSExtensions.h" | ||
| #include "MVKLogging.h" | ||
| #include <mach/mach_time.h> | ||
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| #import <Foundation/Foundation.h> | ||
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| using namespace std; | ||
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| static const MVKOSVersion kMVKOSVersionUnknown = 0.0f; | ||
| static MVKOSVersion _mvkOSVersion = kMVKOSVersionUnknown; | ||
| MVKOSVersion mvkOSVersion() { | ||
| if (_mvkOSVersion == kMVKOSVersionUnknown) { | ||
| NSOperatingSystemVersion osVer = [[NSProcessInfo processInfo] operatingSystemVersion]; | ||
| float maj = osVer.majorVersion; | ||
| float min = osVer.minorVersion; | ||
| float pat = osVer.patchVersion; | ||
| _mvkOSVersion = maj + (min / 100.0f) + + (pat / 10000.0f); | ||
| } | ||
| return _mvkOSVersion; | ||
| } | ||
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| static uint64_t _mvkTimestampBase; | ||
| static double _mvkTimestampPeriod; | ||
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| uint64_t mvkGetTimestamp() { return mach_absolute_time() - _mvkTimestampBase; } | ||
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| double mvkGetTimestampPeriod() { return _mvkTimestampPeriod; } | ||
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| double mvkGetElapsedMilliseconds(uint64_t startTimestamp, uint64_t endTimestamp) { | ||
| if (endTimestamp == 0) { endTimestamp = mvkGetTimestamp(); } | ||
| return (double)(endTimestamp - startTimestamp) * _mvkTimestampPeriod / 1e6; | ||
| } | ||
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| /** | ||
| * Initialize timestamping capabilities on app startup. | ||
| * Called automatically when the framework is loaded and initialized. | ||
| */ | ||
| static bool _mvkTimestampsInitialized = false; | ||
| __attribute__((constructor)) static void MVKInitTimestamps() { | ||
| if (_mvkTimestampsInitialized ) { return; } | ||
| _mvkTimestampsInitialized = true; | ||
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| _mvkTimestampBase = mach_absolute_time(); | ||
| mach_timebase_info_data_t timebase; | ||
| mach_timebase_info(&timebase); | ||
| _mvkTimestampPeriod = (double)timebase.numer / (double)timebase.denom; | ||
| MVKLogDebug("Initializing MoltenVK timestamping. Mach time: %llu. Time period: %d / %d = %.6f.", | ||
| _mvkTimestampBase, timebase.numer, timebase.denom, _mvkTimestampPeriod); | ||
| } | ||
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| void mvkDispatchToMainAndWait(dispatch_block_t block) { | ||
| if (NSThread.isMainThread) { | ||
| block(); | ||
| } else { | ||
| dispatch_sync(dispatch_get_main_queue(), block); | ||
| } | ||
| } | ||
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| #pragma mark - | ||
| #pragma mark Process environment | ||
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| string mvkGetEnvVar(string varName, bool* pWasFound) { | ||
| NSDictionary* env = [[NSProcessInfo processInfo] environment]; | ||
| NSString* envStr = env[@(varName.c_str())]; | ||
| if (pWasFound) { *pWasFound = envStr != nil; } | ||
| return envStr ? envStr.UTF8String : ""; | ||
| } | ||
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| int64_t mvkGetEnvVarInt64(string varName, bool* pWasFound) { | ||
| return strtoll(mvkGetEnvVar(varName, pWasFound).c_str(), NULL, 0); | ||
| } | ||
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| bool mvkGetEnvVarBool(std::string varName, bool* pWasFound) { | ||
| return mvkGetEnvVarInt64(varName, pWasFound) != 0; | ||
| } |
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