CUT Command Post: 302069142

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mlib_matrixtranspose_s16

mlib_MatrixTranspose_U8(3MLIB)				    mediaLib Library Functions				    mlib_MatrixTranspose_U8(3MLIB)

NAME

       mlib_MatrixTranspose_U8,    mlib_MatrixTranspose_U8C,	mlib_MatrixTranspose_S8,    mlib_MatrixTranspose_S8C,	 mlib_MatrixTranspose_S16,
       mlib_MatrixTranspose_S16C, mlib_MatrixTranspose_S32, mlib_MatrixTranspose_S32C - matrix transpose, in place

SYNOPSIS

       cc [ flag... ] file... -lmlib [ library... ]
       #include <mlib.h>

       mlib_status mlib_MatrixTranspose_U8(mlib_u8 *xz, mlib_s32 mn);

       mlib_status mlib_MatrixTranspose_U8C(mlib_u8 *xz, mlib_s32 mn);

       mlib_status mlib_MatrixTranspose_S8(mlib_s8 *xz, mlib_s32 mn);

       mlib_status mlib_MatrixTranspose_S8C(mlib_s8 *xz, mlib_s32 mn);

       mlib_status mlib_MatrixTranspose_S16(mlib_s16 *xz, mlib_s32 mn);

       mlib_status mlib_MatrixTranspose_S16C(mlib_s16 *xz, mlib_s32 mn);

       mlib_status mlib_MatrixTranspose_S32(mlib_s32 *xz, mlib_s32 mn);

       mlib_status mlib_MatrixTranspose_S32C(mlib_s32 *xz, mlib_s32 mn);

DESCRIPTION

       Each of these functions performs an in-place transpose of a square matrix.

       For real data, the following pseudo code applies:

       for (i = 1; i < mn; i++) {
	   for (j = 0; j < i; i++) {
	       tmp	    = xz[i*mn + j];
	       xz[i*mn + j] = xz[j*mn + i];
	       xz[j*mn + i] = tmp;
	   }
       }

       For complex data, the following pseudo code applies:

       for (i = 1; i < mn; i++) {
	   for (j = 0; j < i; i++) {
	       tmp0		    = xz[2*(i*mn + j)];
	       tmp1		    = xz[2*(i*mn + j) + 1];
	       xz[2*(i*mn + j)]     = xz[2*(j*mn + i)];
	       xz[2*(i*mn + j) + 1] = xz[2*(j*mn + i) + 1];
	       xz[2*(j*mn + i)]     = tmp0;
	       xz[2*(j*mn + i) + 1] = tmp1;
	   }
       }

PARAMETERS

       Each of the functions takes the following arguments:

       xz	       Pointer to the source and destination matrix.

       mn	       Number of rows and columns in the matrix.

RETURN VALUES

       Each of the functions returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       mlib_MatrixTranspose_U8(3MLIB), attributes(5)

SunOS 5.10							    10 Nov 2004 				    mlib_MatrixTranspose_U8(3MLIB)