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#include <Alib.h>
#include <stdio.h>
extern void EdgeTableToScanLine (), ScanLineDifference();
void FrameComplete (w)
AWindow *w; {
register ScanLine *tmp;
register int i;
#ifdef DEBUG
register int cstop;
#endif
/*
* Convert the edge table to scan line segments.
*/
EdgeTableToScanLine (w);
/*
* Determine the differences between this frame and the previous one
* an plot the differences.
*/
ScanLineDifference (w);
/*
* This frame now becomes the previous frame; clear the new current frame.
*/
tmp = w->lastScanLine;
w->lastScanLine = w->scanLine;
w->scanLine = tmp;
for (i=0; i<(w->height+1); ++i) {
w->scanLine[i].count = 0;
w->edges[i].head = (Edge *) NULL;
w->lines[i].head = (Edge *) NULL;
}
/*
* Release the allocated color segments for what was the last frame.
*/
if (w->curPool == 0) {
w->curPool = 1;
#ifdef DEBUG
cstop = w->CSTop1;
#endif
w->CSTop1 = 0;
}
else {
w->curPool = 0;
#ifdef DEBUG
cstop = w->CSTop0;
#endif
w->CSTop0 = 0;
}
/*
* Release the allocated elements of the edge pool.
*/
#ifdef DEBUG
printf ("color segments = %d; edges = %d\n", cstop, w->EPTop);
#endif
w->EPTop = 0;
w->ymin = 0x7FFF;
w->ymax = -1;
/*
* Perform any graphics-dependent finish-up
*/
#ifdef X11
AX11FlushBufferedSegments (w);
#endif
#ifdef DEBUG
printf ("End of Frame\n");
#endif
}
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