Category : C Source Code
Archive : TCCLIB2.ZIP
Filename : IMWIN.C
Output of file : IMWIN.C contained in archive : TCCLIB2.ZIP
#include
#include
#include "window.h"
#include "_window.h"
static char *forimage;
void processimage(windowtype *window, char *image, unsigned inset,
int put)
{
register unsigned t1,t2;
windowtype *current = window->previous;
unsigned top, bottom, left, right;
unsigned off1, off2, len, t;
while ( current )
{
if (
(top = ((t1=window->top+inset) > (t2=current->top) ? t1 : t2)) <=
(bottom = ((t1=window->bottom-inset) < (t2=current->bottom) ? t1 : t2)) &&
(left = ((t1=window->left+inset) > (t2=current->left) ? t1 : t2)) <=
(right = ((t1=window->right-inset) < (t2=current->right) ? t1 : t2)))
{
/* Update the forscreen and backscreen */
/* Calculate optimized index references */
off1 = ((window->right-inset) - (window->left+inset) + 1) << 1;
off2 = ((current->right) - (current->left) + 1) << 1;
len = (right - left + 1) << 1;
/* calculate move positions */
t1 = (left - (window->left+inset)) << 1;
t2 = (left - (current->left)) << 1;
if ( (window->top+inset) == top)
t2 += off2*(top - (current->top));
else
t1 += off1*(top - (window->top+inset));
/* Move the memory appropriately */
for (t=top ; t <= bottom; t++)
{
if (put)
{
char *tmp = &image[t1];
ifn0move(¤t->backbuffer[t2],tmp,len);
memset(tmp,'\0',len);
}
else
if0move(&image[t1],¤t->backbuffer[t2],len);
t1 += off1;
t2 += off2;
}
}
current = current->previous;
}
}
char *getwinimage(windowtype *window, unsigned off)
{
char *image;
free(forimage);
forimage = NULL;
if ( (image = calloc(window->size,1)) == NULL )
return NULL;
if ( (forimage = malloc(window->size)) == NULL )
{
free(image);
return NULL;
}
processimage(window, image, off, 0);
gettext(window->left+off, window->top+off, window->right-off,
window->bottom-off,forimage);
if0move(image, forimage, window->size);
return image;
}
int putwinimage(windowtype *window, char *image, unsigned off, int update)
{
if ( !forimage )
{
if ( (forimage = malloc(window->size)) == NULL )
return -1;
gettext(window->left+off, window->top+off, window->right-off,
window->bottom-off,forimage);
}
processimage(window, image, off, 1);
ifn0move(forimage, image, window->size);
if ( update )
puttext(window->left+off, window->top+off, window->right-off,
window->bottom-off,forimage);
else
memcpy(image, forimage, window->size);
free(forimage);
forimage = NULL;
return 0;
}
Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!
This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.
But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/