diff options
Diffstat (limited to 'source/application/main/include/PlatformMath.hpp')
| -rw-r--r-- | source/application/main/include/PlatformMath.hpp | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/source/application/main/include/PlatformMath.hpp b/source/application/main/include/PlatformMath.hpp index 45e6a9e..6804025 100644 --- a/source/application/main/include/PlatformMath.hpp +++ b/source/application/main/include/PlatformMath.hpp @@ -36,11 +36,20 @@ namespace arm { namespace app { namespace math { + enum class FftType { + real = 0, + complex = 1 + }; + struct FftInstance { #if ARM_DSP_AVAILABLE - arm_rfft_fast_instance_f32 instance; + arm_rfft_fast_instance_f32 m_instanceReal; + arm_cfft_instance_f32 m_instanceComplex; #endif - bool initialised = false; + uint16_t m_fftLen{0}; + FftType m_type; + bool m_optimisedOptionAvailable{false}; + bool m_initialised{false}; }; /* Class to provide Math functions like FFT, mean, stddev etc. @@ -59,6 +68,13 @@ namespace math { static float CosineF32(float radians); /** + * @brief Get the sine value of the argument in floating point. + * @param[in] radians Angle in radians. + * @return Sine value (floating point). + */ + static float SineF32(float radians); + + /** * @brief Get the square root of the argument in floating point. * @param[in] input Value to compute square root of. * @return Square root (floating point) value. @@ -90,9 +106,11 @@ namespace math { * prior to Fft32 function call if built with ARM DSP functions. * @param[in] fftLen Requested length of the FFT. * @param[in] fftInstance FFT instance struct to use. - * @return true if successful, false otherwise. + * @param[in] type FFT type (real or complex) */ - static bool FftInitF32(const uint16_t fftLen, arm::app::math::FftInstance& fftInstance); + static void FftInitF32(const uint16_t fftLen, + FftInstance& fftInstance, + const FftType type = FftType::real); /** * @brief Computes the FFT for the input vector. @@ -102,7 +120,7 @@ namespace math { */ static void FftF32(std::vector<float>& input, std::vector<float>& fftOutput, - arm::app::math::FftInstance& fftInstance); + FftInstance& fftInstance); /** * @brief Computes the natural logarithms of input floating point |