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Added disableDenormalisedNumberSupport to query if denormals are disabled and improved documentation

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This commit is contained in:
hogliux 2017-10-17 09:57:39 +01:00
parent bd9a8a8529
commit 2ac2a39a21
2 changed files with 28 additions and 8 deletions
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21
modules/juce_audio_basics/buffers/juce_FloatVectorOperations.cpp
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@ -1084,7 +1084,7 @@ void JUCE_CALLTYPE FloatVectorOperations::enableFlushToZeroMode (bool shouldEnab
#endif
}
void JUCE_CALLTYPE FloatVectorOperations::disableDenormalisedNumberSupport() noexcept
void JUCE_CALLTYPE FloatVectorOperations::disableDenormalisedNumberSupport (bool shouldDisable) noexcept
{
#if JUCE_USE_SSE_INTRINSICS || (JUCE_USE_ARM_NEON || defined (__arm64__) || defined (__aarch64__))
#if JUCE_USE_SSE_INTRINSICS
@ -1093,14 +1093,31 @@ void JUCE_CALLTYPE FloatVectorOperations::disableDenormalisedNumberSupport() noe
intptr_t mask = (1 << 24 /* FZ */);
#endif
setFpStatusRegister (getFpStatusRegister() | mask);
setFpStatusRegister ((getFpStatusRegister() & (~mask)) | (shouldDisable ? mask : 0));
#else
ignoreUnused (shouldDisable);
#if ! (defined (JUCE_INTEL) || defined (JUCE_ARM))
jassertfalse; // No support for disable denormals mode on your platform
#endif
#endif
}
bool JUCE_CALLTYPE FloatVectorOperations::areDenormalsDisabled() noexcept
{
#if JUCE_USE_SSE_INTRINSICS || (JUCE_USE_ARM_NEON || defined (__arm64__) || defined (__aarch64__))
#if JUCE_USE_SSE_INTRINSICS
intptr_t mask = 0x8040;
#else /*JUCE_USE_ARM_NEON*/
intptr_t mask = (1 << 24 /* FZ */);
#endif
return ((getFpStatusRegister() & mask) == mask);
#else
return false;
#endif
}
ScopedNoDenormals::ScopedNoDenormals() noexcept
{
#if JUCE_USE_SSE_INTRINSICS || (JUCE_USE_ARM_NEON || defined (__arm64__) || defined (__aarch64__))