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SLOPES IN SOFTWARE MOD EHOLY SHIT

This commit is contained in:
RedEnchilada 2015-04-20 02:10:14 -05:00
parent 65719c5b99
commit 779faaa93f
8 changed files with 202 additions and 11 deletions
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40
src/r_bsp.c
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@ -487,6 +487,10 @@ static void R_AddLine(seg_t *line)
#endif
backsector->ceilingpic == frontsector->ceilingpic
&& backsector->floorpic == frontsector->floorpic
#ifdef ESLOPE
&& backsector->f_slope == frontsector->f_slope
&& backsector->c_slope == frontsector->c_slope
#endif
&& backsector->lightlevel == frontsector->lightlevel
&& !curline->sidedef->midtexture
// Check offsets too!
@ -862,7 +866,11 @@ static void R_Subsector(size_t num)
&& sectors[frontsector->heightsec].ceilingpic == skyflatnum)))
{
floorplane = R_FindPlane(frontsector->floorheight, frontsector->floorpic, floorlightlevel,
frontsector->floor_xoffs, frontsector->floor_yoffs, frontsector->floorpic_angle, floorcolormap, NULL);
frontsector->floor_xoffs, frontsector->floor_yoffs, frontsector->floorpic_angle, floorcolormap, NULL
#ifdef ESLOPE
, frontsector->f_slope
#endif
);
}
else
floorplane = NULL;
@ -877,7 +885,11 @@ static void R_Subsector(size_t num)
{
ceilingplane = R_FindPlane(frontsector->ceilingheight, frontsector->ceilingpic,
ceilinglightlevel, frontsector->ceiling_xoffs, frontsector->ceiling_yoffs, frontsector->ceilingpic_angle,
ceilingcolormap, NULL);
ceilingcolormap, NULL
#ifdef ESLOPE
, frontsector->c_slope
#endif
);
}
else
ceilingplane = NULL;
@ -914,7 +926,11 @@ static void R_Subsector(size_t num)
viewz < *rover->bottomheight);
ffloor[numffloors].plane = R_FindPlane(*rover->bottomheight, *rover->bottompic,
*frontsector->lightlist[light].lightlevel, *rover->bottomxoffs,
*rover->bottomyoffs, *rover->bottomangle, frontsector->lightlist[light].extra_colormap, rover);
*rover->bottomyoffs, *rover->bottomangle, frontsector->lightlist[light].extra_colormap, rover
#ifdef ESLOPE
, NULL // will ffloors be slopable eventually?
#endif
);
ffloor[numffloors].height = *rover->bottomheight;
ffloor[numffloors].ffloor = rover;
@ -932,7 +948,11 @@ static void R_Subsector(size_t num)
light = R_GetPlaneLight(frontsector, *rover->topheight, viewz < *rover->topheight);
ffloor[numffloors].plane = R_FindPlane(*rover->topheight, *rover->toppic,
*frontsector->lightlist[light].lightlevel, *rover->topxoffs, *rover->topyoffs, *rover->topangle,
frontsector->lightlist[light].extra_colormap, rover);
frontsector->lightlist[light].extra_colormap, rover
#ifdef ESLOPE
, NULL // will ffloors be slopable eventually?
#endif
);
ffloor[numffloors].height = *rover->topheight;
ffloor[numffloors].ffloor = rover;
numffloors++;
@ -985,7 +1005,11 @@ static void R_Subsector(size_t num)
polysec->lightlevel, xoff, yoff,
polysec->floorpic_angle-po->angle,
NULL,
NULL);
NULL
#ifdef ESLOPE
, NULL // will ffloors be slopable eventually?
#endif
);
//ffloor[numffloors].plane->polyobj = po;
ffloor[numffloors].height = polysec->floorheight;
@ -1022,7 +1046,11 @@ static void R_Subsector(size_t num)
light = 0;
ffloor[numffloors].plane = R_FindPlane(polysec->ceilingheight, polysec->ceilingpic,
polysec->lightlevel, xoff, yoff, polysec->ceilingpic_angle-po->angle,
NULL, NULL);
NULL, NULL
#ifdef ESLOPE
, NULL // will ffloors be slopable eventually?
#endif
);
//ffloor[numffloors].plane->polyobj = po;
ffloor[numffloors].polyobj = po;

6
src/r_draw.c
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@ -103,6 +103,12 @@ fixed_t ds_xfrac, ds_yfrac, ds_xstep, ds_ystep;
UINT8 *ds_source; // start of a 64*64 tile image
UINT8 *ds_transmap; // one of the translucency tables
#ifdef ESLOPE
pslope_t *ds_slope; // Current slope being used
v3float_t ds_su, ds_sv, ds_sz; // Vectors for... stuff?
float focallengthf;
#endif
/** \brief Variable flat sizes
*/

9
src/r_draw.h
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@ -60,6 +60,12 @@ extern fixed_t ds_xfrac, ds_yfrac, ds_xstep, ds_ystep;
extern UINT8 *ds_source; // start of a 64*64 tile image
extern UINT8 *ds_transmap;
#ifdef ESLOPE
pslope_t *ds_slope; // Current slope being used
v3float_t ds_su, ds_sv, ds_sz; // Vectors for... stuff?
float focallengthf;
#endif
// Variable flat sizes
extern UINT32 nflatxshift;
extern UINT32 nflatyshift;
@ -141,6 +147,9 @@ void ASMCALL R_DrawSpan_8_MMX(void);
void R_DrawTranslatedColumn_8(void);
void R_DrawTranslatedTranslucentColumn_8(void);
void R_DrawSpan_8(void);
#ifdef ESLOPE
void R_DrawTiltedSpan_8(void);
#endif
void R_DrawSplat_8(void);
void R_DrawTranslucentSplat_8(void);
void R_DrawTranslucentSpan_8(void);

43
src/r_draw8.c
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@ -526,6 +526,49 @@ void R_DrawSpan_8 (void)
}
}
#ifdef ESLOPE
/** \brief The R_DrawTiltedSpan_8 function
Draw slopes! Holy sheit!
*/
void R_DrawTiltedSpan_8(void)
{
// x1, x2 = ds_x1, ds_x2
int width = ds_x2 - ds_x1;
double iz, uz, vz;
BYTE *fb;
DWORD u, v;
int i;
UINT8 *source;
UINT8 *colormap;
UINT8 *dest;
iz = ds_sz.z + ds_sz.y*(centery-ds_y) + ds_sz.x*(ds_x1-centerx);
uz = ds_su.z + ds_su.y*(centery-ds_y) + ds_su.x*(ds_x1-centerx);
vz = ds_sv.z + ds_sv.y*(centery-ds_y) + ds_sv.x*(ds_x1-centerx);
dest = ylookup[ds_y] + columnofs[ds_x1];
source = ds_source;
colormap = ds_colormap;
// The "perfect" reference version of this routine. Pretty slow.
// Use it only to see how things are supposed to look.
i = 0;
do
{
double z = 1.f/iz;
u = (INT64)(uz*z) + viewx;
v = (INT64)(vz*z) + viewy;
*dest = colormap[source[((v >> nflatyshift) & nflatmask) | (u >> nflatxshift)]];
dest++;
iz += ds_sz.x;
uz += ds_su.x;
vz += ds_sv.x;
} while (--width >= 0);
}
#endif // ESLOPE
/** \brief The R_DrawSplat_8 function
Just like R_DrawSpan_8, but skips transparent pixels.
*/

2
src/r_main.c
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@ -527,6 +527,8 @@ static void R_InitTextureMapping(void)
focallength = FixedDiv(centerxfrac,
FINETANGENT(FINEANGLES/4+/*cv_fov.value*/ FIELDOFVIEW/2));
focallengthf = FIXED_TO_FLOAT(focallength);
for (i = 0; i < FINEANGLES/2; i++)
{
if (FINETANGENT(i) > FRACUNIT*2)

90
src/r_plane.c
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@ -423,7 +423,11 @@ static visplane_t *new_visplane(unsigned hash)
//
visplane_t *R_FindPlane(fixed_t height, INT32 picnum, INT32 lightlevel,
fixed_t xoff, fixed_t yoff, angle_t plangle, extracolormap_t *planecolormap,
ffloor_t *pfloor)
ffloor_t *pfloor
#ifdef ESLOPE
, pslope_t *slope
#endif
)
{
visplane_t *check;
unsigned hash;
@ -462,7 +466,11 @@ visplane_t *R_FindPlane(fixed_t height, INT32 picnum, INT32 lightlevel,
&& xoff == check->xoffs && yoff == check->yoffs
&& planecolormap == check->extra_colormap
&& !pfloor && !check->ffloor && check->viewz == viewz
&& check->viewangle == viewangle)
&& check->viewangle == viewangle
#ifdef ESLOPE
&& check->slope == slope
#endif
)
{
return check;
}
@ -485,6 +493,9 @@ visplane_t *R_FindPlane(fixed_t height, INT32 picnum, INT32 lightlevel,
#ifdef POLYOBJECTS_PLANES
check->polyobj = NULL;
#endif
#ifdef ESLOPE
check->slope = slope;
#endif
memset(check->top, 0xff, sizeof (check->top));
memset(check->bottom, 0x00, sizeof (check->bottom));
@ -551,6 +562,9 @@ visplane_t *R_CheckPlane(visplane_t *pl, INT32 start, INT32 stop)
new_pl->plangle = pl->plangle;
#ifdef POLYOBJECTS_PLANES
new_pl->polyobj = pl->polyobj;
#endif
#ifdef ESLOPE
new_pl->slope = pl->slope;
#endif
pl = new_pl;
pl->minx = start;
@ -905,6 +919,78 @@ void R_DrawSinglePlane(visplane_t *pl)
break;
}
#ifdef ESLOPE
if (pl->slope) {
// Potentially override other stuff for now cus we're mean. :< But draw a slope plane!
// I copied ZDoom's code and adapted it to SRB2... -Red
static const float ifloatpow2[16] =
{
// ifloatpow2[i] = 1 / (1 << i)
64.f, 32.f, 16.f, 8.f, 4.f, 2.f, 1.f, 0.5f,
0.25f, 0.125f, 0.0625f, 0.03125f, 0.015625f, 0.0078125f,
0.00390625f, 0.001953125f
/*, 0.0009765625f, 0.00048828125f, 0.000244140625f,
1.220703125e-4f, 6.103515625e-5, 3.0517578125e-5*/
};
double lxscale, lyscale;
double xscale, yscale;
v3float_t p, m, n;
angle_t ang;
double zeroheight;
double vx = FIXED_TO_FLOAT(viewx);
double vy = FIXED_TO_FLOAT(viewy);
double vz = FIXED_TO_FLOAT(viewz);
zeroheight = FIXED_TO_FLOAT(P_GetZAt(pl->slope, viewx, viewy));
// p is the texture origin in view space
// Don't add in the offsets at this stage, because doing so can result in
// errors if the flat is rotated.
ang = (ANGLE_270 - viewangle)>>ANGLETOFINESHIFT;
p.x = vx * FIXED_TO_FLOAT(FINECOSINE(ang)) - vy * FIXED_TO_FLOAT(FINESINE(ang));
p.z = vx * FIXED_TO_FLOAT(FINESINE(ang)) + vy * FIXED_TO_FLOAT(FINECOSINE(ang));
p.y = FIXED_TO_FLOAT(P_GetZAt(pl->slope, 0, 0)) - vz;
// m is the v direction vector in view space
ang = (ANGLE_180 - viewangle - pl->plangle) >> ANGLETOFINESHIFT;
m.x = FIXED_TO_FLOAT(FINECOSINE(ang));
m.z = FIXED_TO_FLOAT(FINESINE(ang));
// n is the u direction vector in view space
ang += ANGLE_90>>ANGLETOFINESHIFT;
ang &= FINEMASK;
n.x = -FIXED_TO_FLOAT(FINECOSINE(ang));
n.z = -FIXED_TO_FLOAT(FINESINE(ang));
ang = pl->plangle>>ANGLETOFINESHIFT;
m.y = FIXED_TO_FLOAT(P_GetZAt(pl->slope, viewx + FINESINE(ang), viewy + FINECOSINE(ang))) - zeroheight;
ang += ANGLE_90>>ANGLETOFINESHIFT;
ang &= FINEMASK;
n.y = FIXED_TO_FLOAT(P_GetZAt(pl->slope, viewx + FINESINE(ang), viewy + FINECOSINE(ang))) - zeroheight;
M_CrossProduct3f(&ds_su, &p, &m);
M_CrossProduct3f(&ds_sv, &p, &n);
M_CrossProduct3f(&ds_sz, &m, &n);
ds_su.z *= focallengthf;
ds_sv.z *= focallengthf;
ds_sz.z *= focallengthf;
// Premultiply the texture vectors with the scale factors
#define SFMULT 65536.f*(1<<nflatshiftup)
ds_su.x *= SFMULT;
ds_su.y *= SFMULT;
ds_su.z *= SFMULT;
ds_sv.x *= SFMULT;
ds_sv.y *= SFMULT;
ds_sv.z *= SFMULT;
#undef SFMULT
spanfunc = R_DrawTiltedSpan_8;
}
#endif // ESLOPE
xoffs = pl->xoffs;
yoffs = pl->yoffs;
planeheight = abs(pl->height - pl->viewz);

9
src/r_plane.h
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@ -61,6 +61,9 @@ typedef struct visplane_s
#ifdef POLYOBJECTS_PLANES
polyobj_t *polyobj;
#endif
#ifdef ESLOPE
pslope_t *slope;
#endif
} visplane_t;
extern visplane_t *floorplane;
@ -91,7 +94,11 @@ void R_MapPlane(INT32 y, INT32 x1, INT32 x2);
void R_MakeSpans(INT32 x, INT32 t1, INT32 b1, INT32 t2, INT32 b2);
void R_DrawPlanes(void);
visplane_t *R_FindPlane(fixed_t height, INT32 picnum, INT32 lightlevel, fixed_t xoff, fixed_t yoff, angle_t plangle,
extracolormap_t *planecolormap, ffloor_t *ffloor);
extracolormap_t *planecolormap, ffloor_t *ffloor
#ifdef ESLOPE
, pslope_t *slope
#endif
);
visplane_t *R_CheckPlane(visplane_t *pl, INT32 start, INT32 stop);
void R_ExpandPlane(visplane_t *pl, INT32 start, INT32 stop);
void R_PlaneBounds(visplane_t *plane);

14
src/r_segs.c
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@ -1757,6 +1757,7 @@ void R_StoreWallRange(INT32 start, INT32 stop)
if (worldlow != worldbottom
#ifdef ESLOPE
|| worldlowslope != worldbottomslope
|| backsector->f_slope != frontsector->f_slope
#endif
|| backsector->floorpic != frontsector->floorpic
|| backsector->lightlevel != frontsector->lightlevel
@ -1782,6 +1783,7 @@ void R_StoreWallRange(INT32 start, INT32 stop)
if (worldhigh != worldtop
#ifdef ESLOPE
|| worldhighslope != worldtopslope
|| backsector->c_slope != frontsector->c_slope
#endif
|| backsector->ceilingpic != frontsector->ceilingpic
|| backsector->lightlevel != frontsector->lightlevel
@ -2092,13 +2094,21 @@ void R_StoreWallRange(INT32 start, INT32 stop)
// and doesn't need to be marked.
if (frontsector->heightsec == -1)
{
if (frontsector->floorheight >= viewz)
if ((
#ifdef ESLOPE
frontsector->f_slope ? P_GetZAt(frontsector->f_slope, viewx, viewy) :
#endif
frontsector->floorheight) >= viewz)
{
// above view plane
markfloor = false;
}
if (frontsector->ceilingheight <= viewz &&
if ((
#ifdef ESLOPE
frontsector->c_slope ? P_GetZAt(frontsector->c_slope, viewx, viewy) :
#endif
frontsector->ceilingheight) <= viewz &&
frontsector->ceilingpic != skyflatnum)
{
// below view plane