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| File: [Development] / inventor / libimage / flsbuf.c (download)
Revision 1.2, Fri Jun 22 22:06:59 2001 UTC (16 years, 4 months ago) by jlim
Made several changes: 1. Removed unreferenced variables. 2. Fixed miscellaneous warnings (typedefs and function declarations). 3. Moved MENUS_IN_POPUP from various files to make/ivcommondefs. 4. Fixed IRIX build problems. |
/*
* iflsbuf -
*
* Paul Haeberli - 1984
*
*/
#include "image.h"
unsigned int iflsbuf(IMAGE *image, unsigned int c)
{
register unsigned short *base;
register int n, rn;
int size;
if ((image->flags&_IOWRT)==0)
return(EOF);
if ((base=image->base)==NULL) {
size = IBUFSIZE(image->xsize);
if ((image->base=base=ibufalloc(image)) == NULL) {
i_errhdlr("flsbuf: error on buf alloc\n");
return EOF;
}
rn = n = 0;
} else if ((rn = n = image->ptr - base) > 0) {
n = putrow(image,base,image->y,image->z);
if(++image->y >= image->ysize) {
image->y = 0;
if(++image->z >= image->zsize) {
image->z = image->zsize-1;
image->flags |= _IOEOF;
return -1;
}
}
}
image->cnt = image->xsize-1;
*base++ = c;
image->ptr = base;
if (rn != n) {
image->flags |= _IOERR;
return(EOF);
}
return(c);
}