//
// R_RenderPlanePortal
//
static void R_RenderPlanePortal(pwindow_t *window)
{
visplane_t *vplane;
int x;
float angle;
portal_t *portal = window->portal;
portalrender.curwindow = window;
if(portal->type != R_PLANE)
return;
if(window->maxx < window->minx)
return;
// haleyjd 01/05/08: flat angle
angle = *portal->data.plane.baseangle + *portal->data.plane.angle;
vplane = R_FindPlane(*portal->data.plane.delta + viewz,
*portal->data.plane.pic,
*portal->data.plane.lightlevel,
*portal->data.plane.xoff,
*portal->data.plane.yoff,
angle, NULL, 0, 255, NULL);
vplane = R_CheckPlane(vplane, window->minx, window->maxx);
for(x = window->minx; x <= window->maxx; x++)
{
if(window->top[x] < window->bottom[x])
{
vplane->top[x] = (int)window->top[x];
vplane->bottom[x] = (int)window->bottom[x];
}
}
if(window->head == window && window->portal->poverlay)
R_PushPost(false, window->portal->poverlay);
if(window->child)
R_RenderPlanePortal(window->child);
}
static void R_RenderLinkedPortal(pwindow_t *window)
{
fixed_t lastx, lasty, lastz;
float lastxf, lastyf, lastzf;
portal_t *portal = window->portal;
// ioanch 20160123: keep track of window
portalrender.curwindow = window;
if(portal->type != R_LINKED || window->maxx < window->minx)
return;
// haleyjd: temporary debug
if(portal->tainted > 6)
{
if(showtainted)
R_ShowTainted(window);
portal->tainted++;
C_Printf(FC_ERROR "Refused to draw portal (line=%i) (t=%d)",
portal->data.link.maker, portal->tainted);
return;
}
#ifdef RANGECHECK
for(int i = 0; i < video.width; i++)
{
if(window->bottom[i] > window->top[i] && (window->bottom[i] < -1
|| window->bottom[i] > viewwindow.height || window->top[i] < -1
|| window->top[i] > viewwindow.height))
{
I_Error("R_RenderAnchoredPortal: clipping array contained invalid "
"information:\n"
" x:%i, ytop:%f, ybottom:%f\n",
i, window->top[i], window->bottom[i]);
}
}
#endif
if(!R_SetupPortalClipsegs(window->minx, window->maxx, window->top, window->bottom))
return;
R_ClearSlopeMark(window->minx, window->maxx, window->type);
// haleyjd: temporary debug
portal->tainted++;
floorclip = window->bottom;
ceilingclip = window->top;
R_ClearOverlayClips();
portalrender.minx = window->minx;
portalrender.maxx = window->maxx;
++validcount;
R_SetMaskedSilhouette(ceilingclip, floorclip);
lastx = viewx;
lasty = viewy;
lastz = viewz;
lastxf = view.x;
lastyf = view.y;
lastzf = view.z;
// SoM 3/10/2005: Use the coordinates stored in the portal struct
viewx = window->vx + portal->data.link.deltax;
viewy = window->vy + portal->data.link.deltay;
viewz = window->vz + portal->data.link.deltaz;
view.x = M_FixedToFloat(viewx);
view.y = M_FixedToFloat(viewy);
view.z = M_FixedToFloat(viewz);
R_IncrementFrameid();
R_RenderBSPNode(numnodes - 1);
// Only push the overlay if this is the head window
R_PushPost(true, window->head == window ? window->portal->poverlay : NULL);
floorclip = floorcliparray;
ceilingclip = ceilingcliparray;
viewx = lastx;
viewy = lasty;
viewz = lastz;
view.x = lastxf;
view.y = lastyf;
view.z = lastzf;
if(window->child)
R_RenderLinkedPortal(window->child);
}
//
// R_RenderSkyboxPortal
//
static void R_RenderSkyboxPortal(pwindow_t *window)
{
fixed_t lastx, lasty, lastz, lastangle;
float lastxf, lastyf, lastzf, lastanglef;
portal_t *portal = window->portal;
portalrender.curwindow = window;
if(portal->type != R_SKYBOX)
return;
if(window->maxx < window->minx)
return;
#ifdef RANGECHECK
for(int i = 0; i < video.width; i++)
{
if(window->bottom[i] > window->top[i] && (window->bottom[i] < -1
|| window->bottom[i] > viewwindow.height || window->top[i] < -1
|| window->top[i] > viewwindow.height))
{
I_Error("R_RenderSkyboxPortal: clipping array contained invalid "
"information:\n"
" x:%i, ytop:%f, ybottom:%f\n",
i, window->top[i], window->bottom[i]);
}
}
#endif
if(!R_SetupPortalClipsegs(window->minx, window->maxx, window->top, window->bottom))
return;
R_ClearSlopeMark(window->minx, window->maxx, window->type);
floorclip = window->bottom;
ceilingclip = window->top;
R_ClearOverlayClips();
portalrender.minx = window->minx;
portalrender.maxx = window->maxx;
++validcount;
R_SetMaskedSilhouette(ceilingclip, floorclip);
lastx = viewx;
lasty = viewy;
lastz = viewz;
lastangle = viewangle;
lastxf = view.x;
lastyf = view.y;
lastzf = view.z;
lastanglef = view.angle;
viewx = portal->data.camera->x;
viewy = portal->data.camera->y;
viewz = portal->data.camera->z;
view.x = M_FixedToFloat(viewx);
view.y = M_FixedToFloat(viewy);
view.z = M_FixedToFloat(viewz);
// SoM: The viewangle should also be offset by the skybox camera angle.
viewangle += portal->data.camera->angle;
viewsin = finesine[viewangle>>ANGLETOFINESHIFT];
viewcos = finecosine[viewangle>>ANGLETOFINESHIFT];
view.angle = (ANG90 - viewangle) * PI / ANG180;
view.sin = (float)sin(view.angle);
view.cos = (float)cos(view.angle);
R_IncrementFrameid();
R_RenderBSPNode(numnodes - 1);
// Only push the overlay if this is the head window
R_PushPost(true, window->head == window ? window->portal->poverlay : NULL);
floorclip = floorcliparray;
ceilingclip = ceilingcliparray;
// SoM: "pop" the view state.
viewx = lastx;
viewy = lasty;
viewz = lastz;
viewangle = lastangle;
view.x = lastxf;
view.y = lastyf;
view.z = lastzf;
view.angle = lastanglef;
viewsin = finesine[viewangle>>ANGLETOFINESHIFT];
viewcos = finecosine[viewangle>>ANGLETOFINESHIFT];
view.sin = (float)sin(view.angle);
view.cos = (float)cos(view.angle);
if(window->child)
R_RenderSkyboxPortal(window->child);
}
//
// R_RenderHorizonPortal
//
static void R_RenderHorizonPortal(pwindow_t *window)
{
fixed_t lastx, lasty, lastz; // SoM 3/10/2005
float lastxf, lastyf, lastzf, floorangle, ceilingangle;
visplane_t *topplane, *bottomplane;
int x;
portal_t *portal = window->portal;
portalrender.curwindow = window;
if(portal->type != R_HORIZON)
return;
if(window->maxx < window->minx)
return;
// haleyjd 01/05/08: angles
floorangle = *portal->data.horizon.floorbaseangle +
*portal->data.horizon.floorangle;
ceilingangle = *portal->data.horizon.ceilingbaseangle +
*portal->data.horizon.ceilingangle;
topplane = R_FindPlane(*portal->data.horizon.ceilingz,
*portal->data.horizon.ceilingpic,
*portal->data.horizon.ceilinglight,
*portal->data.horizon.ceilingxoff,
*portal->data.horizon.ceilingyoff,
ceilingangle, NULL, 0, 255, NULL);
bottomplane = R_FindPlane(*portal->data.horizon.floorz,
*portal->data.horizon.floorpic,
*portal->data.horizon.floorlight,
*portal->data.horizon.floorxoff,
*portal->data.horizon.flooryoff,
floorangle, NULL, 0, 255, NULL);
topplane = R_CheckPlane(topplane, window->minx, window->maxx);
bottomplane = R_CheckPlane(bottomplane, window->minx, window->maxx);
for(x = window->minx; x <= window->maxx; x++)
{
if(window->top[x] > window->bottom[x])
continue;
if(window->top[x] <= view.ycenter - 1.0f &&
window->bottom[x] >= view.ycenter)
{
topplane->top[x] = (int)window->top[x];
topplane->bottom[x] = centery - 1;
bottomplane->top[x] = centery;
bottomplane->bottom[x] = (int)window->bottom[x];
}
else if(window->top[x] <= view.ycenter - 1.0f)
{
topplane->top[x] = (int)window->top[x];
topplane->bottom[x] = (int)window->bottom[x];
}
else if(window->bottom[x] > view.ycenter - 1.0f)
{
bottomplane->top[x] = (int)window->top[x];
bottomplane->bottom[x] = (int)window->bottom[x];
}
}
lastx = viewx;
lasty = viewy;
lastz = viewz;
lastxf = view.x;
lastyf = view.y;
lastzf = view.z;
viewx = window->vx;
viewy = window->vy;
viewz = window->vz;
view.x = M_FixedToFloat(viewx);
view.y = M_FixedToFloat(viewy);
view.z = M_FixedToFloat(viewz);
if(window->head == window && window->portal->poverlay)
R_PushPost(false, window->portal->poverlay);
if(window->child)
R_RenderHorizonPortal(window->child);
viewx = lastx;
viewy = lasty;
viewz = lastz;
view.x = lastxf;
view.y = lastyf;
view.z = lastzf;
}
static void R_RenderLinkedPortal(pwindow_t *window)
{
fixed_t lastx, lasty, lastz;
float lastxf, lastyf, lastzf;
portal_t *portal = window->portal;
// ioanch 20160123: keep track of window
portalrender.curwindow = window;
if(portal->type != R_LINKED || window->maxx < window->minx)
return;
// haleyjd: temporary debug
if(portal->tainted > PORTAL_RECURSION_LIMIT)
{
R_ShowTainted(window);
portal->tainted++;
return;
}
#ifdef RANGECHECK
for(int i = 0; i < video.width; i++)
{
if(window->bottom[i] > window->top[i] && (window->bottom[i] < -1
|| window->bottom[i] > viewwindow.height || window->top[i] < -1
|| window->top[i] > viewwindow.height))
{
I_Error("R_RenderAnchoredPortal: clipping array contained invalid "
"information:\n"
" x:%i, ytop:%f, ybottom:%f\n",
i, window->top[i], window->bottom[i]);
}
}
#endif
if(!R_SetupPortalClipsegs(window->minx, window->maxx, window->top, window->bottom))
return;
R_ClearSlopeMark(window->minx, window->maxx, window->type);
// haleyjd: temporary debug
portal->tainted++;
floorclip = window->bottom;
ceilingclip = window->top;
R_ClearOverlayClips();
portalrender.minx = window->minx;
portalrender.maxx = window->maxx;
++validcount;
R_SetMaskedSilhouette(ceilingclip, floorclip);
lastx = viewx;
lasty = viewy;
lastz = viewz;
lastxf = view.x;
lastyf = view.y;
lastzf = view.z;
// SoM 3/10/2005: Use the coordinates stored in the portal struct
viewx = window->vx + portal->data.link.deltax;
viewy = window->vy + portal->data.link.deltay;
viewz = window->vz + portal->data.link.deltaz;
// ioanch 20160227: microscopic adjustment for line portals to make sure
// the edge textures in the buffer sectors are seen in case of polyobject
// portals
//if(window->line && window->line->portal->data.link.polyportalpartner)
//{
// if(window->line->dx > 0)
// --viewy;
// else if(window->line->dx < 0)
// ++viewy;
// if(window->line->dy > 0)
// ++viewx;
// else if(window->line->dy < 0)
// --viewx;
//}
view.x = M_FixedToFloat(viewx);
view.y = M_FixedToFloat(viewy);
view.z = M_FixedToFloat(viewz);
R_IncrementFrameid();
R_RenderBSPNode(numnodes - 1);
// Only push the overlay if this is the head window
R_PushPost(true, window->head == window ? window->portal->poverlay : NULL);
floorclip = floorcliparray;
ceilingclip = ceilingcliparray;
viewx = lastx;
viewy = lasty;
viewz = lastz;
view.x = lastxf;
view.y = lastyf;
view.z = lastzf;
if(window->child)
R_RenderLinkedPortal(window->child);
}
