home *** CD-ROM | disk | FTP | other *** search
- /**********************************************************************\
-
- File: timing.c
-
- Purpose: This module handles timing loops, based on the TickCount,
- so that time-sensitive procedures operate at the same
- speed on all Macintoshes.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program in a file named "GNU General Public License".
- If not, write to the Free Software Foundation, 675 Mass Ave,
- Cambridge, MA 02139, USA.
-
- \**********************************************************************/
-
- #include "timing.h"
-
- long oldTicks;
-
- pascal void StartTiming(void)
- {
- oldTicks=TickCount();
- }
-
- pascal void TimeCorrection(int tickCount)
- {
- long newTicks;
-
- newTicks=TickCount();
- while (newTicks-oldTicks<tickCount)
- Delay(1L, &newTicks);
- }
-
- pascal void ScrollTheRect(Rect *r, int dh, int dv, RgnHandle unused)
- {
- Rect theDestRect;
- GrafPtr thePort;
- RgnHandle temprgn;
-
- SetRect(&theDestRect, (*r).left+dh, (*r).top+dv, (*r).right+dh, (*r).bottom+dv);
- temprgn=NewRgn();
- RectRgn(temprgn, r);
- GetPort(&thePort);
- CopyBits(&(thePort->portBits), &(thePort->portBits), r, &theDestRect, 0, temprgn);
- DisposeRgn(temprgn);
- }
-