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- /*
- ==============================================================================
-
- This file is part of the JUCE library.
- Copyright (c) 2020 - Raw Material Software Limited
-
- JUCE is an open source library subject to commercial or open-source
- licensing.
-
- The code included in this file is provided under the terms of the ISC license
- http://www.isc.org/downloads/software-support-policy/isc-license. Permission
- To use, copy, modify, and/or distribute this software for any purpose with or
- without fee is hereby granted provided that the above copyright notice and
- this permission notice appear in all copies.
-
- JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
- EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
- DISCLAIMED.
-
- ==============================================================================
- */
-
- namespace juce
- {
-
- #ifndef JUCE_SNAP_TO_ZERO
- #if JUCE_INTEL
- #define JUCE_SNAP_TO_ZERO(n) if (! (n < -1.0e-8f || n > 1.0e-8f)) n = 0;
- #else
- #define JUCE_SNAP_TO_ZERO(n) ignoreUnused (n)
- #endif
- #endif
- class ScopedNoDenormals;
-
- //==============================================================================
- /**
- A collection of simple vector operations on arrays of floats, accelerated with
- SIMD instructions where possible.
-
- @tags{Audio}
- */
- class JUCE_API FloatVectorOperations
- {
- public:
- //==============================================================================
- /** Clears a vector of floats. */
- static void JUCE_CALLTYPE clear (float* dest, int numValues) noexcept;
-
- /** Clears a vector of doubles. */
- static void JUCE_CALLTYPE clear (double* dest, int numValues) noexcept;
-
- /** Copies a repeated value into a vector of floats. */
- static void JUCE_CALLTYPE fill (float* dest, float valueToFill, int numValues) noexcept;
-
- /** Copies a repeated value into a vector of doubles. */
- static void JUCE_CALLTYPE fill (double* dest, double valueToFill, int numValues) noexcept;
-
- /** Copies a vector of floats. */
- static void JUCE_CALLTYPE copy (float* dest, const float* src, int numValues) noexcept;
-
- /** Copies a vector of doubles. */
- static void JUCE_CALLTYPE copy (double* dest, const double* src, int numValues) noexcept;
-
- /** Copies a vector of floats, multiplying each value by a given multiplier */
- static void JUCE_CALLTYPE copyWithMultiply (float* dest, const float* src, float multiplier, int numValues) noexcept;
-
- /** Copies a vector of doubles, multiplying each value by a given multiplier */
- static void JUCE_CALLTYPE copyWithMultiply (double* dest, const double* src, double multiplier, int numValues) noexcept;
-
- /** Adds a fixed value to the destination values. */
- static void JUCE_CALLTYPE add (float* dest, float amountToAdd, int numValues) noexcept;
-
- /** Adds a fixed value to the destination values. */
- static void JUCE_CALLTYPE add (double* dest, double amountToAdd, int numValues) noexcept;
-
- /** Adds a fixed value to each source value and stores it in the destination array. */
- static void JUCE_CALLTYPE add (float* dest, const float* src, float amount, int numValues) noexcept;
-
- /** Adds a fixed value to each source value and stores it in the destination array. */
- static void JUCE_CALLTYPE add (double* dest, const double* src, double amount, int numValues) noexcept;
-
- /** Adds the source values to the destination values. */
- static void JUCE_CALLTYPE add (float* dest, const float* src, int numValues) noexcept;
-
- /** Adds the source values to the destination values. */
- static void JUCE_CALLTYPE add (double* dest, const double* src, int numValues) noexcept;
-
- /** Adds each source1 value to the corresponding source2 value and stores the result in the destination array. */
- static void JUCE_CALLTYPE add (float* dest, const float* src1, const float* src2, int num) noexcept;
-
- /** Adds each source1 value to the corresponding source2 value and stores the result in the destination array. */
- static void JUCE_CALLTYPE add (double* dest, const double* src1, const double* src2, int num) noexcept;
-
- /** Subtracts the source values from the destination values. */
- static void JUCE_CALLTYPE subtract (float* dest, const float* src, int numValues) noexcept;
-
- /** Subtracts the source values from the destination values. */
- static void JUCE_CALLTYPE subtract (double* dest, const double* src, int numValues) noexcept;
-
- /** Subtracts each source2 value from the corresponding source1 value and stores the result in the destination array. */
- static void JUCE_CALLTYPE subtract (float* dest, const float* src1, const float* src2, int num) noexcept;
-
- /** Subtracts each source2 value from the corresponding source1 value and stores the result in the destination array. */
- static void JUCE_CALLTYPE subtract (double* dest, const double* src1, const double* src2, int num) noexcept;
-
- /** Multiplies each source value by the given multiplier, then adds it to the destination value. */
- static void JUCE_CALLTYPE addWithMultiply (float* dest, const float* src, float multiplier, int numValues) noexcept;
-
- /** Multiplies each source value by the given multiplier, then adds it to the destination value. */
- static void JUCE_CALLTYPE addWithMultiply (double* dest, const double* src, double multiplier, int numValues) noexcept;
-
- /** Multiplies each source1 value by the corresponding source2 value, then adds it to the destination value. */
- static void JUCE_CALLTYPE addWithMultiply (float* dest, const float* src1, const float* src2, int num) noexcept;
-
- /** Multiplies each source1 value by the corresponding source2 value, then adds it to the destination value. */
- static void JUCE_CALLTYPE addWithMultiply (double* dest, const double* src1, const double* src2, int num) noexcept;
-
- /** Multiplies each source value by the given multiplier, then subtracts it to the destination value. */
- static void JUCE_CALLTYPE subtractWithMultiply (float* dest, const float* src, float multiplier, int numValues) noexcept;
-
- /** Multiplies each source value by the given multiplier, then subtracts it to the destination value. */
- static void JUCE_CALLTYPE subtractWithMultiply (double* dest, const double* src, double multiplier, int numValues) noexcept;
-
- /** Multiplies each source1 value by the corresponding source2 value, then subtracts it to the destination value. */
- static void JUCE_CALLTYPE subtractWithMultiply (float* dest, const float* src1, const float* src2, int num) noexcept;
-
- /** Multiplies each source1 value by the corresponding source2 value, then subtracts it to the destination value. */
- static void JUCE_CALLTYPE subtractWithMultiply (double* dest, const double* src1, const double* src2, int num) noexcept;
-
- /** Multiplies the destination values by the source values. */
- static void JUCE_CALLTYPE multiply (float* dest, const float* src, int numValues) noexcept;
-
- /** Multiplies the destination values by the source values. */
- static void JUCE_CALLTYPE multiply (double* dest, const double* src, int numValues) noexcept;
-
- /** Multiplies each source1 value by the correspinding source2 value, then stores it in the destination array. */
- static void JUCE_CALLTYPE multiply (float* dest, const float* src1, const float* src2, int numValues) noexcept;
-
- /** Multiplies each source1 value by the correspinding source2 value, then stores it in the destination array. */
- static void JUCE_CALLTYPE multiply (double* dest, const double* src1, const double* src2, int numValues) noexcept;
-
- /** Multiplies each of the destination values by a fixed multiplier. */
- static void JUCE_CALLTYPE multiply (float* dest, float multiplier, int numValues) noexcept;
-
- /** Multiplies each of the destination values by a fixed multiplier. */
- static void JUCE_CALLTYPE multiply (double* dest, double multiplier, int numValues) noexcept;
-
- /** Multiplies each of the source values by a fixed multiplier and stores the result in the destination array. */
- static void JUCE_CALLTYPE multiply (float* dest, const float* src, float multiplier, int num) noexcept;
-
- /** Multiplies each of the source values by a fixed multiplier and stores the result in the destination array. */
- static void JUCE_CALLTYPE multiply (double* dest, const double* src, double multiplier, int num) noexcept;
-
- /** Copies a source vector to a destination, negating each value. */
- static void JUCE_CALLTYPE negate (float* dest, const float* src, int numValues) noexcept;
-
- /** Copies a source vector to a destination, negating each value. */
- static void JUCE_CALLTYPE negate (double* dest, const double* src, int numValues) noexcept;
-
- /** Copies a source vector to a destination, taking the absolute of each value. */
- static void JUCE_CALLTYPE abs (float* dest, const float* src, int numValues) noexcept;
-
- /** Copies a source vector to a destination, taking the absolute of each value. */
- static void JUCE_CALLTYPE abs (double* dest, const double* src, int numValues) noexcept;
-
- /** Converts a stream of integers to floats, multiplying each one by the given multiplier. */
- static void JUCE_CALLTYPE convertFixedToFloat (float* dest, const int* src, float multiplier, int numValues) noexcept;
-
- /** Each element of dest will be the minimum of the corresponding element of the source array and the given comp value. */
- static void JUCE_CALLTYPE min (float* dest, const float* src, float comp, int num) noexcept;
-
- /** Each element of dest will be the minimum of the corresponding element of the source array and the given comp value. */
- static void JUCE_CALLTYPE min (double* dest, const double* src, double comp, int num) noexcept;
-
- /** Each element of dest will be the minimum of the corresponding source1 and source2 values. */
- static void JUCE_CALLTYPE min (float* dest, const float* src1, const float* src2, int num) noexcept;
-
- /** Each element of dest will be the minimum of the corresponding source1 and source2 values. */
- static void JUCE_CALLTYPE min (double* dest, const double* src1, const double* src2, int num) noexcept;
-
- /** Each element of dest will be the maximum of the corresponding element of the source array and the given comp value. */
- static void JUCE_CALLTYPE max (float* dest, const float* src, float comp, int num) noexcept;
-
- /** Each element of dest will be the maximum of the corresponding element of the source array and the given comp value. */
- static void JUCE_CALLTYPE max (double* dest, const double* src, double comp, int num) noexcept;
-
- /** Each element of dest will be the maximum of the corresponding source1 and source2 values. */
- static void JUCE_CALLTYPE max (float* dest, const float* src1, const float* src2, int num) noexcept;
-
- /** Each element of dest will be the maximum of the corresponding source1 and source2 values. */
- static void JUCE_CALLTYPE max (double* dest, const double* src1, const double* src2, int num) noexcept;
-
- /** Each element of dest is calculated by hard clipping the corresponding src element so that it is in the range specified by the arguments low and high. */
- static void JUCE_CALLTYPE clip (float* dest, const float* src, float low, float high, int num) noexcept;
-
- /** Each element of dest is calculated by hard clipping the corresponding src element so that it is in the range specified by the arguments low and high. */
- static void JUCE_CALLTYPE clip (double* dest, const double* src, double low, double high, int num) noexcept;
-
- /** Finds the minimum and maximum values in the given array. */
- static Range<float> JUCE_CALLTYPE findMinAndMax (const float* src, int numValues) noexcept;
-
- /** Finds the minimum and maximum values in the given array. */
- static Range<double> JUCE_CALLTYPE findMinAndMax (const double* src, int numValues) noexcept;
-
- /** Finds the minimum value in the given array. */
- static float JUCE_CALLTYPE findMinimum (const float* src, int numValues) noexcept;
-
- /** Finds the minimum value in the given array. */
- static double JUCE_CALLTYPE findMinimum (const double* src, int numValues) noexcept;
-
- /** Finds the maximum value in the given array. */
- static float JUCE_CALLTYPE findMaximum (const float* src, int numValues) noexcept;
-
- /** Finds the maximum value in the given array. */
- static double JUCE_CALLTYPE findMaximum (const double* src, int numValues) noexcept;
-
- /** This method enables or disables the SSE/NEON flush-to-zero mode. */
- static void JUCE_CALLTYPE enableFlushToZeroMode (bool shouldEnable) noexcept;
-
- /** On Intel CPUs, this method enables the SSE flush-to-zero and denormalised-are-zero modes.
- This effectively sets the DAZ and FZ bits of the MXCSR register. On arm CPUs this will
- enable flush to zero mode.
- It's a convenient thing to call before audio processing code where you really want to
- avoid denormalisation performance hits.
- */
- static void JUCE_CALLTYPE disableDenormalisedNumberSupport (bool shouldDisable = true) noexcept;
-
- /** This method returns true if denormals are currently disabled. */
- static bool JUCE_CALLTYPE areDenormalsDisabled() noexcept;
-
- private:
- friend ScopedNoDenormals;
-
- static intptr_t JUCE_CALLTYPE getFpStatusRegister() noexcept;
- static void JUCE_CALLTYPE setFpStatusRegister (intptr_t) noexcept;
- };
-
- //==============================================================================
- /**
- Helper class providing an RAII-based mechanism for temporarily disabling
- denormals on your CPU.
-
- @tags{Audio}
- */
- class ScopedNoDenormals
- {
- public:
- ScopedNoDenormals() noexcept;
- ~ScopedNoDenormals() noexcept;
-
- private:
- #if JUCE_USE_SSE_INTRINSICS || (JUCE_USE_ARM_NEON || defined (__arm64__) || defined (__aarch64__))
- intptr_t fpsr;
- #endif
- };
-
- } // namespace juce
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