static void displayticrate(fixed_t value)
{
int j,l,i;
static tic_t lasttic;
tic_t tics,t;
t = I_GetTime();
tics = (t - lasttic)/NEWTICRATERATIO;
lasttic = t;
if (tics > OLDTICRATE) tics = OLDTICRATE;
for (i=0; i<OLDTICRATE-1; i++)
fpsgraph[i]=fpsgraph[i+1];
fpsgraph[OLDTICRATE-1]=OLDTICRATE-tics;
if (value == 1 || value == 3)
{
char s[11];
sprintf(s, "FPS: %d/%u", OLDTICRATE-tics+1, OLDTICRATE);
V_DrawString(BASEVIDWIDTH - V_StringWidth(s), BASEVIDHEIGHT-ST_HEIGHT+24, V_YELLOWMAP, s);
}
if (value == 1)
return;
if (rendermode == render_soft)
{
int k;
// draw dots
for (j=0; j<=OLDTICRATE*SCALE*vid.dupy; j+=2*SCALE*vid.dupy)
{
l=(vid.height-1-j)*vid.width*vid.bpp;
for (i=0; i<OLDTICRATE*SCALE*vid.dupx; i+=2*SCALE*vid.dupx)
screens[0][l+i]=0xff;
}
// draw the graph
for (i=0; i<OLDTICRATE; i++)
for (k=0; k<SCALE*vid.dupx; k++)
PUTDOT(i*SCALE*vid.dupx+k, vid.height-1-(fpsgraph[i]*SCALE*vid.dupy),0xff);
}
#ifdef HWRENDER
else
{
fline_t p;
for (j=0; j<=OLDTICRATE*SCALE*vid.dupy; j+=2*SCALE*vid.dupy)
{
l=(vid.height-1-j);
for (i=0; i<OLDTICRATE*SCALE*vid.dupx; i+=2*SCALE*vid.dupx)
{
p.a.x = i;
p.a.y = l;
p.b.x = i+1;
p.b.y = l;
HWR_drawAMline(&p, 0xff);
}
}
for (i=1; i<OLDTICRATE; i++)
{
p.a.x = SCALE * (i-1);
p.a.y = vid.height-1-fpsgraph[i-1]*SCALE*vid.dupy;
p.b.x = SCALE * i;
p.b.y = vid.height-1-fpsgraph[i]*SCALE*vid.dupy;
HWR_drawAMline(&p, 0xff);
}
}
#endif
}
//
// AM_drawFline()
//
// Draw a line in the frame buffer.
// Classic Bresenham w/ whatever optimizations needed for speed
//
// Passed the frame coordinates of line, and the color to be drawn
// Returns nothing
//
void AM_drawFline
( fline_t* fl,
int color )
{
register int x;
register int y;
register int dx;
register int dy;
register int sx;
register int sy;
register int ax;
register int ay;
register int d;
#ifdef RANGECHECK // killough 2/22/98
static int f**k = 0;
// For debugging only
if
(
fl->a.x < 0 || fl->a.x >= f_w
|| fl->a.y < 0 || fl->a.y >= f_h
|| fl->b.x < 0 || fl->b.x >= f_w
|| fl->b.y < 0 || fl->b.y >= f_h
)
{
fprintf(stderr, "f**k %d \r", f**k++);
return;
}
#endif
#define PUTDOT(xx,yy,cc) fb[(yy)*f_w+(xx)]=(cc)
dx = fl->b.x - fl->a.x;
ax = 2 * (dx<0 ? -dx : dx);
sx = dx<0 ? -1 : 1;
dy = fl->b.y - fl->a.y;
ay = 2 * (dy<0 ? -dy : dy);
sy = dy<0 ? -1 : 1;
x = fl->a.x;
y = fl->a.y;
if (ax > ay)
{
d = ay - ax/2;
while (1)
{
PUTDOT(x,y,color);
if (x == fl->b.x) return;
if (d>=0)
{
y += sy;
d -= ax;
}
x += sx;
d += ay;
}
}
else
{
d = ax - ay/2;
while (1)
{
PUTDOT(x, y, color);
if (y == fl->b.y) return;
if (d >= 0)
{
x += sx;
d -= ay;
}
y += sy;
d += ax;
}
}
}
