Natural logarithm
MT, SSE2, Family10h
| FwStatus | fwsLn_32f | ( | const Fw32f * pSrc, Fw32f * pDst, int len ); | |
| FwStatus | fwsLn_64f | ( | const Fw64f * pSrc, Fw64f * pDst, int len ); | |
| FwStatus | fwsLn_64f32f | ( | const Fw64f * pSrc, Fw32f * pDst, int len ); | |
| FwStatus | fwsLn_32f_I | ( | Fw32f * pSrcDst, int len ); | |
| FwStatus | fwsLn_64f_I | ( | Fw64f * pSrcDst, int len ); | |
| FwStatus | fwsLn_16s_Sfs | ( | const Fw16s * pSrc, Fw16s * pDst, int len, int scaleFactor ); | |
| FwStatus | fwsLn_32s_Sfs | ( | const Fw32s * pSrc, Fw32s * pDst, int len, int scaleFactor ); | |
| FwStatus | fwsLn_32s16s_Sfs | ( | const Fw32s * pSrc, Fw16s * pDst, int len, int scaleFactor ); | |
| FwStatus | fwsLn_16s_ISfs | ( | Fw16s * pSrcDst, int len, int scaleFactor ); | |
| FwStatus | fwsLn_32s_ISfs | ( | Fw32s * pSrcDst, int len, int scaleFactor ); |
| len | Specifies the number of elements in a buffer. | |
| pDst | Pointer to a destination buffer. | |
| pSrc | Pointer to a source buffer. | |
| pSrcDst | Pointer to a buffer that is both the source and destination. | |
| scaleFactor | Specifies an integer scaling factor for the Sfs operation. The returned result is multiplied by 2^(-scaleFactor). |
These functions step through vector elements in a source buffer and calculate the natural logarithm of each element.
Results can be written to a destination buffer or written back to the source buffer.
The 16-bit and 32-bit signed versions perform an integer scaling operation before writing the results.