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mri_swapbytes.c File Reference

#include "mrilib.h"


Data Structures
struct	eightbytes
struct	fourbytes
struct	twobytes
Defines
#define	SWAB16(x) ( ( ((x)&0x00ffU)<<8 ) \| ( ((x)&0xff00U)>>8 ) )
Functions
void	mri_swapbytes (MRI_IMAGE *im)
void	swap_twobytes (int n, void *ar)
void	swap_fourbytes (int n, void *ar)
void	swap_eightbytes (int n, void *ar)

Define Documentation

#define SWAB16

(

)

( ( ((x)&0x00ffU)<<8 ) | ( ((x)&0xff00U)>>8 ) )

Definition at line 11 of file mri_swapbytes.c.

Referenced by mri_swapbytes().

Function Documentation

void mri_swapbytes

(

MRI_IMAGE *

)

Definition at line 13 of file mri_swapbytes.c.

References ENTRY, MRI_IMAGE::im, MRI_IMAGE::kind, MRI_IMAGE::nvox, MRI_DATA::short_data, and SWAB16.

Referenced by main(), mri_input_delay(), and mri_read_3D().

00014 {
00015    register int ii , npix ;
00016 
00017 ENTRY("mri_swapbytes") ;
00018 
00019    if( im->kind != MRI_short ){
00020      fprintf( stderr , "mri_swapbytes called with non-short image kind\n" ) ;
00021      EXRETURN ;
00022    }
00023 
00024    npix = im->nvox ;
00025 
00026    for( ii=0 ; ii < npix ; ii++ )
00027      im->im.short_data[ii] = SWAB16( im->im.short_data[ii] ) ;
00028 
00029    EXRETURN ;
00030 }

void swap_eightbytes	(	int	n,
		void *	ar
	)

Definition at line 71 of file mri_swapbytes.c.

References eightbytes::a, eightbytes::A, eightbytes::b, eightbytes::B, eightbytes::c, eightbytes::C, eightbytes::d, eightbytes::D, and tt.

Referenced by T3D_read_images(), and T3D_swap_CB().

00072 {
00073    register int ii ;
00074    register eightbytes * tb = (eightbytes *) ar ;
00075    register unsigned char tt ;
00076 
00077    for( ii=0 ; ii < n ; ii++ ){
00078       tt = tb[ii].a ; tb[ii].a = tb[ii].A ; tb[ii].A = tt ;
00079       tt = tb[ii].b ; tb[ii].b = tb[ii].B ; tb[ii].B = tt ;
00080       tt = tb[ii].c ; tb[ii].c = tb[ii].C ; tb[ii].C = tt ;
00081       tt = tb[ii].d ; tb[ii].d = tb[ii].D ; tb[ii].D = tt ;
00082    }
00083 }

void swap_fourbytes	(	int	n,
		void *	ar
	)

Definition at line 53 of file mri_swapbytes.c.

References fourbytes::a, fourbytes::b, fourbytes::c, fourbytes::d, and tt.

00054 {
00055    register int ii ;
00056    register fourbytes * tb = (fourbytes *) ar ;
00057    register unsigned char tt ;
00058 
00059    for( ii=0 ; ii < n ; ii++ ){
00060       tt       = tb[ii].a ;
00061       tb[ii].a = tb[ii].d ;
00062       tb[ii].d = tt ;
00063       tt       = tb[ii].b ;
00064       tb[ii].b = tb[ii].c ;
00065       tb[ii].c = tt ;
00066    }
00067 }

void swap_twobytes	(	int	n,
		void *	ar
	)

Definition at line 38 of file mri_swapbytes.c.

References twobytes::a, twobytes::b, and tt.

00039 {
00040    register int ii ;
00041    register twobytes * tb = (twobytes *) ar ;
00042    register unsigned char tt ;
00043 
00044    for( ii=0 ; ii < n ; ii++ ){
00045       tt       = tb[ii].a ;
00046       tb[ii].a = tb[ii].b ;
00047       tb[ii].b = tt ;
00048    }
00049 }

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mri_swapbytes.c File Reference

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