/*
===============
R_SetVrect
===============
*/
public static void R_SetVrect(vid.vrect_t pvrectin, vid.vrect_t pvrect, int lineadj)
{
int h;
double size;
size = screen.scr_viewsize.value > 100 ? 100 : screen.scr_viewsize.value;
if (client.cl.intermission != 0)
{
size = 100;
lineadj = 0;
}
size /= 100;
h = pvrectin.height - lineadj;
pvrect.width = (int)(pvrectin.width * size);
if (pvrect.width < 96)
{
size = 96.0 / pvrectin.width;
pvrect.width = 96; // min for icons
}
pvrect.width &= ~7;
pvrect.height = (int)(pvrectin.height * size);
if (pvrect.height > pvrectin.height - lineadj)
pvrect.height = pvrectin.height - lineadj;
pvrect.height &= ~1;
pvrect.x = (pvrectin.width - pvrect.width)/2;
pvrect.y = (h - pvrect.height)/2;
{
if (view.lcd_x.value != 0)
{
pvrect.y >>= 1;
pvrect.height >>= 1;
}
}
}
/*
===============
R_ViewChanged
Called every time the vid structure or r_refdef changes.
Guaranteed to be called before the first refresh
===============
*/
public static void R_ViewChanged(vid.vrect_t pvrect, int lineadj, double aspect)
{
int i;
double res_scale;
r_viewchanged = true;
R_SetVrect(pvrect, r_refdef.vrect, lineadj);
r_refdef.horizontalFieldOfView = 2.0 * Math.Tan(r_refdef.fov_x / 360 * mathlib.M_PI);
r_refdef.fvrectx = (double)r_refdef.vrect.x;
r_refdef.fvrectx_adj = (double)r_refdef.vrect.x - 0.5;
r_refdef.vrect_x_adj_shift20 = (r_refdef.vrect.x << 20) + (1 << 19) - 1;
r_refdef.fvrecty = (double)r_refdef.vrect.y;
r_refdef.fvrecty_adj = (double)r_refdef.vrect.y - 0.5;
r_refdef.vrectright = r_refdef.vrect.x + r_refdef.vrect.width;
r_refdef.vrectright_adj_shift20 = (r_refdef.vrectright << 20) + (1 << 19) - 1;
r_refdef.fvrectright = (double)r_refdef.vrectright;
r_refdef.fvrectright_adj = (double)r_refdef.vrectright - 0.5;
r_refdef.vrectrightedge = (double)r_refdef.vrectright - 0.99;
r_refdef.vrectbottom = r_refdef.vrect.y + r_refdef.vrect.height;
r_refdef.fvrectbottom = (double)r_refdef.vrectbottom;
r_refdef.fvrectbottom_adj = (double)r_refdef.vrectbottom - 0.5;
r_refdef.aliasvrect.x = (int)(r_refdef.vrect.x * r_aliasuvscale);
r_refdef.aliasvrect.y = (int)(r_refdef.vrect.y * r_aliasuvscale);
r_refdef.aliasvrect.width = (int)(r_refdef.vrect.width * r_aliasuvscale);
r_refdef.aliasvrect.height = (int)(r_refdef.vrect.height * r_aliasuvscale);
r_refdef.aliasvrectright = r_refdef.aliasvrect.x +
r_refdef.aliasvrect.width;
r_refdef.aliasvrectbottom = r_refdef.aliasvrect.y +
r_refdef.aliasvrect.height;
pixelAspect = aspect;
xOrigin = r_refdef.xOrigin;
yOrigin = r_refdef.yOrigin;
screenAspect = r_refdef.vrect.width * pixelAspect /
r_refdef.vrect.height;
// 320*200 1.0 pixelAspect = 1.6 screenAspect
// 320*240 1.0 pixelAspect = 1.3333 screenAspect
// proper 320*200 pixelAspect = 0.8333333
verticalFieldOfView = r_refdef.horizontalFieldOfView / screenAspect;
// values for perspective projection
// if math were exact, the values would range from 0.5 to to range+0.5
// hopefully they wll be in the 0.000001 to range+.999999 and truncate
// the polygon rasterization will never render in the first row or column
// but will definately render in the [range] row and column, so adjust the
// buffer origin to get an exact edge to edge fill
xcenter = ((double)r_refdef.vrect.width * XCENTERING) +
r_refdef.vrect.x - 0.5;
aliasxcenter = xcenter * r_aliasuvscale;
ycenter = ((double)r_refdef.vrect.height * YCENTERING) +
r_refdef.vrect.y - 0.5;
aliasycenter = ycenter * r_aliasuvscale;
xscale = r_refdef.vrect.width / r_refdef.horizontalFieldOfView;
aliasxscale = xscale * r_aliasuvscale;
xscaleinv = 1.0 / xscale;
yscale = xscale * pixelAspect;
aliasyscale = yscale * r_aliasuvscale;
yscaleinv = 1.0 / yscale;
xscaleshrink = (r_refdef.vrect.width - 6) / r_refdef.horizontalFieldOfView;
yscaleshrink = xscaleshrink * pixelAspect;
// left side clip
screenedge[0].normal[0] = -1.0 / (xOrigin * r_refdef.horizontalFieldOfView);
screenedge[0].normal[1] = 0;
screenedge[0].normal[2] = 1;
screenedge[0].type = bspfile.PLANE_ANYZ;
// right side clip
screenedge[1].normal[0] =
1.0 / ((1.0 - xOrigin) * r_refdef.horizontalFieldOfView);
screenedge[1].normal[1] = 0;
screenedge[1].normal[2] = 1;
screenedge[1].type = bspfile.PLANE_ANYZ;
// top side clip
screenedge[2].normal[0] = 0;
screenedge[2].normal[1] = -1.0 / (yOrigin * verticalFieldOfView);
screenedge[2].normal[2] = 1;
screenedge[2].type = bspfile.PLANE_ANYZ;
// bottom side clip
screenedge[3].normal[0] = 0;
screenedge[3].normal[1] = 1.0 / ((1.0 - yOrigin) * verticalFieldOfView);
screenedge[3].normal[2] = 1;
screenedge[3].type = bspfile.PLANE_ANYZ;
for (i = 0; i < 4; i++)
mathlib.VectorNormalize(screenedge[i].normal);
res_scale = Math.Sqrt((double)(r_refdef.vrect.width * r_refdef.vrect.height) /
(320.0 * 152.0)) *
(2.0 / r_refdef.horizontalFieldOfView);
r_aliastransition = r_aliastransbase.value * res_scale;
r_resfudge = r_aliastransadj.value * res_scale;
if (screen.scr_fov.value <= 90.0)
r_fov_greater_than_90 = false;
else
r_fov_greater_than_90 = true;
draw.D_ViewChanged();
}
/*
==============
R_DrawRect8
==============
*/
static void R_DrawRect8(vid.vrect_t prect, int rowbytes, int psrc, int transparent)
{
byte t;
int i, j, srcdelta, destdelta;
int pdest;
pdest = (int)(/*vid.buffer + */(prect.y * screen.vid.rowbytes) + prect.x);
srcdelta = rowbytes - prect.width;
destdelta = (int)(screen.vid.rowbytes - prect.width);
if (transparent != 0)
{
for (i=0 ; i<prect.height ; i++)
{
for (j=0 ; j<prect.width ; j++)
{
t = r_rectdesc.ptexbytes[psrc];
if (t != TRANSPARENT_COLOR)
{
screen.vid.buffer[pdest] = t;
}
psrc++;
pdest++;
}
psrc += srcdelta;
pdest += destdelta;
}
}
else
{
for (i=0 ; i<prect.height ; i++)
{
Buffer.BlockCopy(r_rectdesc.ptexbytes, psrc, screen.vid.buffer, pdest, prect.width);
psrc += rowbytes;
pdest += (int)screen.vid.rowbytes;
}
}
}