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Diffstat (limited to 'libs/appleutility/CoreAudio/PublicUtility/CAVectorUnit.h')
-rw-r--r-- | libs/appleutility/CoreAudio/PublicUtility/CAVectorUnit.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/libs/appleutility/CoreAudio/PublicUtility/CAVectorUnit.h b/libs/appleutility/CoreAudio/PublicUtility/CAVectorUnit.h new file mode 100644 index 0000000000..cf3a16c7a9 --- /dev/null +++ b/libs/appleutility/CoreAudio/PublicUtility/CAVectorUnit.h @@ -0,0 +1,101 @@ +/* + File: CAVectorUnit.h + Abstract: Part of CoreAudio Utility Classes + Version: 1.1 + + Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple + Inc. ("Apple") in consideration of your agreement to the following + terms, and your use, installation, modification or redistribution of + this Apple software constitutes acceptance of these terms. If you do + not agree with these terms, please do not use, install, modify or + redistribute this Apple software. + + In consideration of your agreement to abide by the following terms, and + subject to these terms, Apple grants you a personal, non-exclusive + license, under Apple's copyrights in this original Apple software (the + "Apple Software"), to use, reproduce, modify and redistribute the Apple + Software, with or without modifications, in source and/or binary forms; + provided that if you redistribute the Apple Software in its entirety and + without modifications, you must retain this notice and the following + text and disclaimers in all such redistributions of the Apple Software. + Neither the name, trademarks, service marks or logos of Apple Inc. may + be used to endorse or promote products derived from the Apple Software + without specific prior written permission from Apple. Except as + expressly stated in this notice, no other rights or licenses, express or + implied, are granted by Apple herein, including but not limited to any + patent rights that may be infringed by your derivative works or by other + works in which the Apple Software may be incorporated. + + The Apple Software is provided by Apple on an "AS IS" basis. APPLE + MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION + THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS + FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND + OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS. + + IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, + MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED + AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), + STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. + + Copyright (C) 2014 Apple Inc. All Rights Reserved. + +*/ +#ifndef __CAVectorUnit_h__ +#define __CAVectorUnit_h__ + +#include <TargetConditionals.h> +#include "CAVectorUnitTypes.h" +#include <stdlib.h> +#include <stdio.h> + +#if !defined(__COREAUDIO_USE_FLAT_INCLUDES__) + #include <CoreFoundation/CFBase.h> +#else + #include "CFBase.h" +#endif + +// Unify checks for vector units. +// Allow setting an environment variable "CA_NoVector" to turn off vectorized code at runtime (very useful for performance testing). + +extern int gCAVectorUnitType; + +#ifdef __cplusplus +extern "C" { +#endif + +extern SInt32 CAVectorUnit_Examine(); // expensive. use GetType() for lazy initialization and caching. + +static inline SInt32 CAVectorUnit_GetType() +{ + int x = gCAVectorUnitType; + return (x != kVecUninitialized) ? x : CAVectorUnit_Examine(); +} + +static inline Boolean CAVectorUnit_HasVectorUnit() +{ + return CAVectorUnit_GetType() > kVecNone; +} + +#ifdef __cplusplus +} +#endif + + +#ifdef __cplusplus +class CAVectorUnit { +public: + static SInt32 GetVectorUnitType() { return CAVectorUnit_GetType(); } + static bool HasVectorUnit() { return GetVectorUnitType() > kVecNone; } + static bool HasAltivec() { return GetVectorUnitType() == kVecAltivec; } + static bool HasSSE2() { return GetVectorUnitType() >= kVecSSE2; } + static bool HasSSE3() { return GetVectorUnitType() >= kVecSSE3; } + static bool HasAVX1() { return GetVectorUnitType() >= kVecAVX1; } + static bool HasNeon() { return GetVectorUnitType() == kVecNeon; } +}; +#endif + +#endif // __CAVectorUnit_h__ |