cc [ flag... ] file... –lmlib [ library... ] #include <mlib.h> mlib_status mlib_MatrixMulSShift_U8_Mod(mlib_u8 *xz, const mlib_u8 *c, mlib_s32 m, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_MatrixMulSShift_U8_Sat(mlib_u8 *xz, const mlib_u8 *c, mlib_s32 m, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_MatrixMulSShift_U8C_Mod(mlib_u8 *xz, const mlib_u8 *c, mlib_s32 m, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_MatrixMulSShift_U8C_Sat(mlib_u8 *xz, const mlib_u8 *c, mlib_s32 m, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_MatrixMulSShift_S8_Mod(mlib_s8 *xz, const mlib_s8 *c, mlib_s32 m, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_MatrixMulSShift_S8_Sat(mlib_s8 *xz, const mlib_s8 *c, mlib_s32 m, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_MatrixMulSShift_S8C_Mod(mlib_s8 *xz, const mlib_s8 *c, mlib_s32 m, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_MatrixMulSShift_S8C_Sat(mlib_s8 *xz, const mlib_s8 *c, mlib_s32 m, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_MatrixMulSShift_S16_Mod(mlib_s16 *xz, const mlib_s16 *c, mlib_s32 m, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_MatrixMulSShift_S16_Sat(mlib_s16 *xz, const mlib_s16 *c, mlib_s32 m, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_MatrixMulSShift_S16C_Mod(mlib_s16 *xz, const mlib_s16 *c, mlib_s32 m, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_MatrixMulSShift_S16C_Sat(mlib_s16 *xz, const mlib_s16 *c, mlib_s32 m, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_MatrixMulSShift_S32_Mod(mlib_s32 *xz, const mlib_s32 *c, mlib_s32 m, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_MatrixMulSShift_S32_Sat(mlib_s32 *xz, const mlib_s32 *c, mlib_s32 m, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_MatrixMulSShift_S32C_Mod(mlib_s32 *xz, const mlib_s32 *c, mlib_s32 m, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_MatrixMulSShift_S32C_Sat(mlib_s32 *xz, const mlib_s32 *c, mlib_s32 m, mlib_s32 n, mlib_s32 shift);
Each of these functions performs an in-place multiplication of a matrix with a scalar and shifts the result.
For real data, the following equation is used:
xz[i] = c[0]*xz[i]*2**(-shift)
where i = 0, 1, ..., (m*n - 1).
For complex data, the following equation is used:
tmp = xz[2*i] xz[2*i] = (c[0]*tmp - c[1]*xz[2*i + 1])*2**(-shift) xz[2*i + 1] = (c[1]*tmp + c[0]*xz[2*i + 1])*2**(-shift)
where i = 0, 1, ..., (m*n - 1).
The ranges of valid shift are:
1 ≤ shift ≤ 8 for U8, S8, U8C, S8C types 1 ≤ shift ≤ 16 for S16, S16C types 1 ≤ shift ≤ 31 for S32, S32C types
Each of the functions takes the following arguments:
Pointer to the source and destination matrix.
Pointer to the source scalar. When the function is used with complex data types, c[0] contains the scalar for the real part, and c[1] contains the scalar for the imaginary part.
Number of rows in each matrix.
Number of columns in each matrix.
Right shifting factor.
Each of the functions returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.
See attributes(5) for descriptions of the following attributes:
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