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/TwlSDK-5.1.0/build/libraries/math/common/src/
Dfft.c534 fx32 d1r, d1i, d2r, d2i; in MATH_FFTReal() local
535 d1r = data[i]; in MATH_FFTReal()
539 yr = (d1r + d2r) >> 1; in MATH_FFTReal()
542 zi = -(d1r - d2r) >> 1; in MATH_FFTReal()
603 fx32 d1r, d1i, d2r, d2i; in MATH_IFFTReal() local
604 d1r = data[i]; in MATH_IFFTReal()
608 yr = (d1r + d2r); in MATH_IFFTReal()
611 zi = (d1r - d2r); in MATH_IFFTReal()