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Merge branch 'preserve-texture-col-frac' into 'next'

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Use separate table for maskedtexturecol (resolves #635)

Closes #635

See merge request STJr/SRB2!2073
This commit is contained in:
sphere 2023-08-20 17:19:18 +00:00
commit 3d0457d58b
6 changed files with 365 additions and 379 deletions
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4
src/r_defs.h
View file

@ -757,12 +757,12 @@ typedef struct drawseg_s
// Pointers to lists for sprite clipping, all three adjusted so [x1] is first value.
INT16 *sprtopclip;
INT16 *sprbottomclip;
INT16 *maskedtexturecol;
fixed_t *maskedtexturecol;
struct visplane_s *ffloorplanes[MAXFFLOORS];
INT32 numffloorplanes;
struct ffloor_s *thicksides[MAXFFLOORS];
INT16 *thicksidecol;
fixed_t *thicksidecol;
INT32 numthicksides;
fixed_t frontscale[MAXVIDWIDTH];

1
src/r_main.c
View file

@ -1479,6 +1479,7 @@ void R_RenderPlayerView(player_t *player)
R_ClearClipSegs();
}
R_ClearDrawSegs();
R_ClearSegTables();
R_ClearSprites();
Portal_InitList();

6
src/r_plane.c
View file

@ -53,10 +53,6 @@ INT32 numffloors;
#define visplane_hash(picnum,lightlevel,height) \
((unsigned)((picnum)*3+(lightlevel)+(height)*7) & VISPLANEHASHMASK)
//SoM: 3/23/2000: Use boom opening limit removal
size_t maxopenings;
INT16 *openings, *lastopening; /// \todo free leak
//
// Clip values are the solid pixel bounding the range.
// floorclip starts out SCREENHEIGHT
@ -366,8 +362,6 @@ void R_ClearPlanes(void)
freehead = &(*freehead)->next;
}
lastopening = openings;
// texture calculation
memset(cachedheight, 0, sizeof (cachedheight));
}

3
src/r_plane.h
View file

@ -60,9 +60,6 @@ extern visplane_t *floorplane;
extern visplane_t *ceilingplane;
// Visplane related.
extern INT16 *lastopening, *openings;
extern size_t maxopenings;
extern INT16 floorclip[MAXVIDWIDTH], ceilingclip[MAXVIDWIDTH];
extern fixed_t frontscale[MAXVIDWIDTH], yslopetab[MAXVIDHEIGHT*16];
extern fixed_t cachedheight[MAXVIDHEIGHT];

729
src/r_segs.c
View file

@ -71,9 +71,22 @@ static fixed_t topfrac, topstep;
static fixed_t bottomfrac, bottomstep;
static lighttable_t **walllights;
static INT16 *maskedtexturecol;
static fixed_t *maskedtexturecol;
static fixed_t *maskedtextureheight = NULL;
//SoM: 3/23/2000: Use boom opening limit removal
static size_t numopenings;
static INT16 *openings, *lastopening;
static size_t texturecolumntablesize;
static fixed_t *texturecolumntable, *curtexturecolumntable;
void R_ClearSegTables(void)
{
lastopening = openings;
curtexturecolumntable = texturecolumntable;
}
// ==========================================================================
// R_RenderMaskedSegRange
// ==========================================================================
@ -350,170 +363,115 @@ void R_RenderMaskedSegRange(drawseg_t *ds, INT32 x1, INT32 x2)
dc_texturemid += (textureheight[texnum])*times + textureheight[texnum];
else
dc_texturemid -= (textureheight[texnum])*times;
// calculate lighting
if (maskedtexturecol[dc_x] != INT16_MAX)
// Check for overflows first
overflow_test = (INT64)centeryfrac - (((INT64)dc_texturemid*spryscale)>>FRACBITS);
if (overflow_test < 0) overflow_test = -overflow_test;
if ((UINT64)overflow_test&0xFFFFFFFF80000000ULL)
{
// Check for overflows first
overflow_test = (INT64)centeryfrac - (((INT64)dc_texturemid*spryscale)>>FRACBITS);
if (overflow_test < 0) overflow_test = -overflow_test;
if ((UINT64)overflow_test&0xFFFFFFFF80000000ULL)
// Eh, no, go away, don't waste our time
if (dc_numlights)
{
// Eh, no, go away, don't waste our time
if (dc_numlights)
for (i = 0; i < dc_numlights; i++)
{
for (i = 0; i < dc_numlights; i++)
rlight = &dc_lightlist[i];
rlight->height += rlight->heightstep;
}
}
spryscale += rw_scalestep;
continue;
}
// calculate lighting
if (dc_numlights)
{
lighttable_t **xwalllights;
sprbotscreen = INT32_MAX;
sprtopscreen = windowtop = (centeryfrac - FixedMul(dc_texturemid, spryscale));
realbot = windowbottom = FixedMul(textureheight[texnum], spryscale) + sprtopscreen;
dc_iscale = 0xffffffffu / (unsigned)spryscale;
// draw the texture
col = (column_t *)((UINT8 *)R_GetColumn(texnum, (maskedtexturecol[dc_x] >> FRACBITS)) - 3);
for (i = 0; i < dc_numlights; i++)
{
rlight = &dc_lightlist[i];
if ((rlight->flags & FOF_NOSHADE))
continue;
if (rlight->lightnum < 0)
xwalllights = scalelight[0];
else if (rlight->lightnum >= LIGHTLEVELS)
xwalllights = scalelight[LIGHTLEVELS-1];
else
xwalllights = scalelight[rlight->lightnum];
pindex = FixedMul(spryscale, LIGHTRESOLUTIONFIX)>>LIGHTSCALESHIFT;
if (pindex >= MAXLIGHTSCALE)
pindex = MAXLIGHTSCALE - 1;
if (rlight->extra_colormap)
rlight->rcolormap = rlight->extra_colormap->colormap + (xwalllights[pindex] - colormaps);
else
rlight->rcolormap = xwalllights[pindex];
height = rlight->height;
rlight->height += rlight->heightstep;
if (height <= windowtop)
{
dc_colormap = rlight->rcolormap;
continue;
}
windowbottom = height;
if (windowbottom >= realbot)
{
windowbottom = realbot;
colfunc_2s(col);
for (i++; i < dc_numlights; i++)
{
rlight = &dc_lightlist[i];
rlight->height += rlight->heightstep;
}
continue;
}
spryscale += rw_scalestep;
continue;
}
if (dc_numlights)
{
lighttable_t **xwalllights;
sprbotscreen = INT32_MAX;
sprtopscreen = windowtop = (centeryfrac - FixedMul(dc_texturemid, spryscale));
realbot = windowbottom = FixedMul(textureheight[texnum], spryscale) + sprtopscreen;
dc_iscale = 0xffffffffu / (unsigned)spryscale;
// draw the texture
col = (column_t *)((UINT8 *)R_GetColumn(texnum, maskedtexturecol[dc_x]) - 3);
for (i = 0; i < dc_numlights; i++)
{
rlight = &dc_lightlist[i];
if ((rlight->flags & FOF_NOSHADE))
continue;
if (rlight->lightnum < 0)
xwalllights = scalelight[0];
else if (rlight->lightnum >= LIGHTLEVELS)
xwalllights = scalelight[LIGHTLEVELS-1];
else
xwalllights = scalelight[rlight->lightnum];
pindex = FixedMul(spryscale, LIGHTRESOLUTIONFIX)>>LIGHTSCALESHIFT;
if (pindex >= MAXLIGHTSCALE)
pindex = MAXLIGHTSCALE - 1;
if (rlight->extra_colormap)
rlight->rcolormap = rlight->extra_colormap->colormap + (xwalllights[pindex] - colormaps);
else
rlight->rcolormap = xwalllights[pindex];
height = rlight->height;
rlight->height += rlight->heightstep;
if (height <= windowtop)
{
dc_colormap = rlight->rcolormap;
continue;
}
windowbottom = height;
if (windowbottom >= realbot)
{
windowbottom = realbot;
colfunc_2s(col);
for (i++; i < dc_numlights; i++)
{
rlight = &dc_lightlist[i];
rlight->height += rlight->heightstep;
}
continue;
}
colfunc_2s(col);
windowtop = windowbottom + 1;
dc_colormap = rlight->rcolormap;
}
windowbottom = realbot;
if (windowtop < windowbottom)
colfunc_2s(col);
spryscale += rw_scalestep;
continue;
}
// calculate lighting
pindex = FixedMul(spryscale, LIGHTRESOLUTIONFIX)>>LIGHTSCALESHIFT;
if (pindex >= MAXLIGHTSCALE)
pindex = MAXLIGHTSCALE - 1;
dc_colormap = walllights[pindex];
if (frontsector->extra_colormap)
dc_colormap = frontsector->extra_colormap->colormap + (dc_colormap - colormaps);
sprtopscreen = centeryfrac - FixedMul(dc_texturemid, spryscale);
dc_iscale = 0xffffffffu / (unsigned)spryscale;
// draw the texture
col = (column_t *)((UINT8 *)R_GetColumn(texnum, maskedtexturecol[dc_x]) - 3);
#if 0 // Disabling this allows inside edges to render below the planes, for until the clipping is fixed to work right when POs are near the camera. -Red
if (curline->dontrenderme && curline->polyseg && (curline->polyseg->flags & POF_RENDERPLANES))
{
fixed_t my_topscreen;
fixed_t my_bottomscreen;
fixed_t my_yl, my_yh;
my_topscreen = sprtopscreen + spryscale*col->topdelta;
my_bottomscreen = sprbotscreen == INT32_MAX ? my_topscreen + spryscale*col->length
: sprbotscreen + spryscale*col->length;
my_yl = (my_topscreen+FRACUNIT-1)>>FRACBITS;
my_yh = (my_bottomscreen-1)>>FRACBITS;
// CONS_Debug(DBG_RENDER, "my_topscreen: %d\nmy_bottomscreen: %d\nmy_yl: %d\nmy_yh: %d\n", my_topscreen, my_bottomscreen, my_yl, my_yh);
if (numffloors)
{
INT32 top = my_yl;
INT32 bottom = my_yh;
for (i = 0; i < numffloors; i++)
{
if (!ffloor[i].polyobj || ffloor[i].polyobj != curline->polyseg)
continue;
if (ffloor[i].height < viewz)
{
INT32 top_w = ffloor[i].plane->top[dc_x];
// CONS_Debug(DBG_RENDER, "Leveltime : %d\n", leveltime);
// CONS_Debug(DBG_RENDER, "Top is %d, top_w is %d\n", top, top_w);
if (top_w < top)
{
ffloor[i].plane->top[dc_x] = (INT16)top;
ffloor[i].plane->picnum = 0;
}
// CONS_Debug(DBG_RENDER, "top_w is now %d\n", ffloor[i].plane->top[dc_x]);
}
else if (ffloor[i].height > viewz)
{
INT32 bottom_w = ffloor[i].plane->bottom[dc_x];
if (bottom_w > bottom)
{
ffloor[i].plane->bottom[dc_x] = (INT16)bottom;
ffloor[i].plane->picnum = 0;
}
}
}
}
}
else
#endif
colfunc_2s(col);
windowtop = windowbottom + 1;
dc_colormap = rlight->rcolormap;
}
windowbottom = realbot;
if (windowtop < windowbottom)
colfunc_2s(col);
spryscale += rw_scalestep;
continue;
}
// calculate lighting
pindex = FixedMul(spryscale, LIGHTRESOLUTIONFIX)>>LIGHTSCALESHIFT;
if (pindex >= MAXLIGHTSCALE)
pindex = MAXLIGHTSCALE - 1;
dc_colormap = walllights[pindex];
if (frontsector->extra_colormap)
dc_colormap = frontsector->extra_colormap->colormap + (dc_colormap - colormaps);
sprtopscreen = centeryfrac - FixedMul(dc_texturemid, spryscale);
dc_iscale = 0xffffffffu / (unsigned)spryscale;
// draw the texture
col = (column_t *)((UINT8 *)R_GetColumn(texnum, (maskedtexturecol[dc_x] >> FRACBITS)) - 3);
colfunc_2s(col);
spryscale += rw_scalestep;
}
}
@ -857,183 +815,182 @@ void R_RenderThickSideRange(drawseg_t *ds, INT32 x1, INT32 x2, ffloor_t *pfloor)
// draw the columns
for (dc_x = x1; dc_x <= x2; dc_x++)
{
if (maskedtexturecol[dc_x] != INT16_MAX)
// skew FOF walls
if (ffloortextureslide)
{
if (ffloortextureslide) { // skew FOF walls
if (oldx != -1)
dc_texturemid += FixedMul(ffloortextureslide, (maskedtexturecol[oldx]-maskedtexturecol[dc_x])<<FRACBITS);
oldx = dc_x;
}
// Calculate bounds
// clamp the values if necessary to avoid overflows and rendering glitches caused by them
if (oldx != -1)
dc_texturemid += FixedMul(ffloortextureslide, maskedtexturecol[oldx]-maskedtexturecol[dc_x]);
oldx = dc_x;
}
if (top_frac > (INT64)CLAMPMAX) sprtopscreen = windowtop = CLAMPMAX;
else if (top_frac > (INT64)CLAMPMIN) sprtopscreen = windowtop = (fixed_t)top_frac;
else sprtopscreen = windowtop = CLAMPMIN;
if (bottom_frac > (INT64)CLAMPMAX) sprbotscreen = windowbottom = CLAMPMAX;
else if (bottom_frac > (INT64)CLAMPMIN) sprbotscreen = windowbottom = (fixed_t)bottom_frac;
else sprbotscreen = windowbottom = CLAMPMIN;
// Calculate bounds
// clamp the values if necessary to avoid overflows and rendering glitches caused by them
if (top_frac > (INT64)CLAMPMAX) sprtopscreen = windowtop = CLAMPMAX;
else if (top_frac > (INT64)CLAMPMIN) sprtopscreen = windowtop = (fixed_t)top_frac;
else sprtopscreen = windowtop = CLAMPMIN;
if (bottom_frac > (INT64)CLAMPMAX) sprbotscreen = windowbottom = CLAMPMAX;
else if (bottom_frac > (INT64)CLAMPMIN) sprbotscreen = windowbottom = (fixed_t)bottom_frac;
else sprbotscreen = windowbottom = CLAMPMIN;
top_frac += top_step;
bottom_frac += bottom_step;
top_frac += top_step;
bottom_frac += bottom_step;
// SoM: If column is out of range, why bother with it??
if (windowbottom < topbounds || windowtop > bottombounds)
// SoM: If column is out of range, why bother with it??
if (windowbottom < topbounds || windowtop > bottombounds)
{
if (dc_numlights)
{
if (dc_numlights)
for (i = 0; i < dc_numlights; i++)
{
for (i = 0; i < dc_numlights; i++)
rlight = &dc_lightlist[i];
rlight->height += rlight->heightstep;
if (rlight->flags & FOF_CUTLEVEL)
rlight->botheight += rlight->botheightstep;
}
}
spryscale += rw_scalestep;
continue;
}
dc_iscale = 0xffffffffu / (unsigned)spryscale;
// Get data for the column
col = (column_t *)((UINT8 *)R_GetColumn(texnum, (maskedtexturecol[dc_x] >> FRACBITS)) - 3);
// SoM: New code does not rely on R_DrawColumnShadowed_8 which
// will (hopefully) put less strain on the stack.
if (dc_numlights)
{
lighttable_t **xwalllights;
fixed_t height;
fixed_t bheight = 0;
INT32 solid = 0;
INT32 lighteffect = 0;
for (i = 0; i < dc_numlights; i++)
{
// Check if the current light effects the colormap/lightlevel
rlight = &dc_lightlist[i];
lighteffect = !(dc_lightlist[i].flags & FOF_NOSHADE);
if (lighteffect)
{
lightnum = rlight->lightnum;
if (lightnum < 0)
xwalllights = scalelight[0];
else if (lightnum >= LIGHTLEVELS)
xwalllights = scalelight[LIGHTLEVELS-1];
else
xwalllights = scalelight[lightnum];
pindex = FixedMul(spryscale, LIGHTRESOLUTIONFIX)>>LIGHTSCALESHIFT;
if (pindex >= MAXLIGHTSCALE)
pindex = MAXLIGHTSCALE-1;
if (pfloor->fofflags & FOF_FOG)
{
if (pfloor->master->frontsector->extra_colormap)
rlight->rcolormap = pfloor->master->frontsector->extra_colormap->colormap + (xwalllights[pindex] - colormaps);
else
rlight->rcolormap = xwalllights[pindex];
}
else
{
if (rlight->extra_colormap)
rlight->rcolormap = rlight->extra_colormap->colormap + (xwalllights[pindex] - colormaps);
else
rlight->rcolormap = xwalllights[pindex];
}
}
solid = 0; // don't carry over solid-cutting flag from the previous light
// Check if the current light can cut the current 3D floor.
if (rlight->flags & FOF_CUTSOLIDS && !(pfloor->fofflags & FOF_EXTRA))
solid = 1;
else if (rlight->flags & FOF_CUTEXTRA && pfloor->fofflags & FOF_EXTRA)
{
if (rlight->flags & FOF_EXTRA)
{
// The light is from an extra 3D floor... Check the flags so
// there are no undesired cuts.
if ((rlight->flags & (FOF_FOG|FOF_SWIMMABLE)) == (pfloor->fofflags & (FOF_FOG|FOF_SWIMMABLE)))
solid = 1;
}
else
solid = 1;
}
else
solid = 0;
height = rlight->height;
rlight->height += rlight->heightstep;
if (solid)
{
bheight = rlight->botheight - (FRACUNIT >> 1);
rlight->botheight += rlight->botheightstep;
}
if (height <= windowtop)
{
if (lighteffect)
dc_colormap = rlight->rcolormap;
if (solid && windowtop < bheight)
windowtop = bheight;
continue;
}
windowbottom = height;
if (windowbottom >= sprbotscreen)
{
windowbottom = sprbotscreen;
// draw the texture
colfunc_2s (col);
for (i++; i < dc_numlights; i++)
{
rlight = &dc_lightlist[i];
rlight->height += rlight->heightstep;
if (rlight->flags & FOF_CUTLEVEL)
rlight->botheight += rlight->botheightstep;
}
continue;
}
spryscale += rw_scalestep;
continue;
// draw the texture
colfunc_2s (col);
if (solid)
windowtop = bheight;
else
windowtop = windowbottom + 1;
if (lighteffect)
dc_colormap = rlight->rcolormap;
}
windowbottom = sprbotscreen;
// draw the texture, if there is any space left
if (windowtop < windowbottom)
colfunc_2s (col);
dc_iscale = 0xffffffffu / (unsigned)spryscale;
// Get data for the column
col = (column_t *)((UINT8 *)R_GetColumn(texnum,maskedtexturecol[dc_x]) - 3);
// SoM: New code does not rely on R_DrawColumnShadowed_8 which
// will (hopefully) put less strain on the stack.
if (dc_numlights)
{
lighttable_t **xwalllights;
fixed_t height;
fixed_t bheight = 0;
INT32 solid = 0;
INT32 lighteffect = 0;
for (i = 0; i < dc_numlights; i++)
{
// Check if the current light effects the colormap/lightlevel
rlight = &dc_lightlist[i];
lighteffect = !(dc_lightlist[i].flags & FOF_NOSHADE);
if (lighteffect)
{
lightnum = rlight->lightnum;
if (lightnum < 0)
xwalllights = scalelight[0];
else if (lightnum >= LIGHTLEVELS)
xwalllights = scalelight[LIGHTLEVELS-1];
else
xwalllights = scalelight[lightnum];
pindex = FixedMul(spryscale, LIGHTRESOLUTIONFIX)>>LIGHTSCALESHIFT;
if (pindex >= MAXLIGHTSCALE)
pindex = MAXLIGHTSCALE-1;
if (pfloor->fofflags & FOF_FOG)
{
if (pfloor->master->frontsector->extra_colormap)
rlight->rcolormap = pfloor->master->frontsector->extra_colormap->colormap + (xwalllights[pindex] - colormaps);
else
rlight->rcolormap = xwalllights[pindex];
}
else
{
if (rlight->extra_colormap)
rlight->rcolormap = rlight->extra_colormap->colormap + (xwalllights[pindex] - colormaps);
else
rlight->rcolormap = xwalllights[pindex];
}
}
solid = 0; // don't carry over solid-cutting flag from the previous light
// Check if the current light can cut the current 3D floor.
if (rlight->flags & FOF_CUTSOLIDS && !(pfloor->fofflags & FOF_EXTRA))
solid = 1;
else if (rlight->flags & FOF_CUTEXTRA && pfloor->fofflags & FOF_EXTRA)
{
if (rlight->flags & FOF_EXTRA)
{
// The light is from an extra 3D floor... Check the flags so
// there are no undesired cuts.
if ((rlight->flags & (FOF_FOG|FOF_SWIMMABLE)) == (pfloor->fofflags & (FOF_FOG|FOF_SWIMMABLE)))
solid = 1;
}
else
solid = 1;
}
else
solid = 0;
height = rlight->height;
rlight->height += rlight->heightstep;
if (solid)
{
bheight = rlight->botheight - (FRACUNIT >> 1);
rlight->botheight += rlight->botheightstep;
}
if (height <= windowtop)
{
if (lighteffect)
dc_colormap = rlight->rcolormap;
if (solid && windowtop < bheight)
windowtop = bheight;
continue;
}
windowbottom = height;
if (windowbottom >= sprbotscreen)
{
windowbottom = sprbotscreen;
// draw the texture
colfunc_2s (col);
for (i++; i < dc_numlights; i++)
{
rlight = &dc_lightlist[i];
rlight->height += rlight->heightstep;
if (rlight->flags & FOF_CUTLEVEL)
rlight->botheight += rlight->botheightstep;
}
continue;
}
// draw the texture
colfunc_2s (col);
if (solid)
windowtop = bheight;
else
windowtop = windowbottom + 1;
if (lighteffect)
dc_colormap = rlight->rcolormap;
}
windowbottom = sprbotscreen;
// draw the texture, if there is any space left
if (windowtop < windowbottom)
colfunc_2s (col);
spryscale += rw_scalestep;
continue;
}
// calculate lighting
pindex = FixedMul(spryscale, LIGHTRESOLUTIONFIX)>>LIGHTSCALESHIFT;
if (pindex >= MAXLIGHTSCALE)
pindex = MAXLIGHTSCALE - 1;
dc_colormap = walllights[pindex];
if (pfloor->fofflags & FOF_FOG && pfloor->master->frontsector->extra_colormap)
dc_colormap = pfloor->master->frontsector->extra_colormap->colormap + (dc_colormap - colormaps);
else if (frontsector->extra_colormap)
dc_colormap = frontsector->extra_colormap->colormap + (dc_colormap - colormaps);
// draw the texture
colfunc_2s (col);
spryscale += rw_scalestep;
continue;
}
// calculate lighting
pindex = FixedMul(spryscale, LIGHTRESOLUTIONFIX)>>LIGHTSCALESHIFT;
if (pindex >= MAXLIGHTSCALE)
pindex = MAXLIGHTSCALE - 1;
dc_colormap = walllights[pindex];
if (pfloor->fofflags & FOF_FOG && pfloor->master->frontsector->extra_colormap)
dc_colormap = pfloor->master->frontsector->extra_colormap->colormap + (dc_colormap - colormaps);
else if (frontsector->extra_colormap)
dc_colormap = frontsector->extra_colormap->colormap + (dc_colormap - colormaps);
// draw the texture
colfunc_2s (col);
spryscale += rw_scalestep;
}
colfunc = colfuncs[BASEDRAWFUNC];
@ -1270,7 +1227,7 @@ static void R_RenderSegLoop (void)
}
oldtexturecolumn = texturecolumn;
texturecolumn >>= FRACBITS;
INT32 itexturecolumn = texturecolumn >> FRACBITS;
// texturecolumn and lighting are independent of wall tiers
if (segtextured)
@ -1336,7 +1293,7 @@ static void R_RenderSegLoop (void)
dc_yl = yl;
dc_yh = yh;
dc_texturemid = rw_midtexturemid;
dc_source = R_GetColumn(midtexture,texturecolumn + (rw_offset_mid>>FRACBITS));
dc_source = R_GetColumn(midtexture, itexturecolumn + (rw_offset_mid>>FRACBITS));
dc_texheight = textureheight[midtexture]>>FRACBITS;
//profile stuff ---------------------------------------------------------
@ -1397,7 +1354,7 @@ static void R_RenderSegLoop (void)
dc_yl = yl;
dc_yh = mid;
dc_texturemid = rw_toptexturemid;
dc_source = R_GetColumn(toptexture,texturecolumn + (rw_offset_top>>FRACBITS));
dc_source = R_GetColumn(toptexture, itexturecolumn + (rw_offset_top>>FRACBITS));
dc_texheight = textureheight[toptexture]>>FRACBITS;
colfunc();
ceilingclip[rw_x] = (INT16)mid;
@ -1433,8 +1390,7 @@ static void R_RenderSegLoop (void)
dc_yl = mid;
dc_yh = yh;
dc_texturemid = rw_bottomtexturemid;
dc_source = R_GetColumn(bottomtexture,
texturecolumn + (rw_offset_bot>>FRACBITS));
dc_source = R_GetColumn(bottomtexture, itexturecolumn + (rw_offset_bot>>FRACBITS));
dc_texheight = textureheight[bottomtexture]>>FRACBITS;
colfunc();
floorclip[rw_x] = (INT16)mid;
@ -1453,7 +1409,7 @@ static void R_RenderSegLoop (void)
{
// save texturecol
// for backdrawing of masked mid texture
maskedtexturecol[rw_x] = (INT16)(texturecolumn + (rw_offset_mid>>FRACBITS));
maskedtexturecol[rw_x] = texturecolumn + rw_offset_mid;
if (maskedtextureheight != NULL) {
maskedtextureheight[rw_x] = (curline->linedef->flags & ML_MIDPEG) ?
@ -1512,6 +1468,67 @@ static INT64 R_CalcSegDist(seg_t* seg, INT64 x2, INT64 y2)
}
}
//SoM: Code to remove limits on openings.
static void R_AllocClippingTables(size_t range)
{
size_t pos = lastopening - openings;
size_t need = range * 2; // for both sprtopclip and sprbottomclip
if (pos + need < numopenings)
return;
INT16 *oldopenings = openings;
INT16 *oldlast = lastopening;
if (numopenings == 0)
numopenings = 16384;
numopenings += need;
openings = Z_Realloc(openings, numopenings * sizeof (*openings), PU_STATIC, NULL);
lastopening = openings + pos;
// borrowed fix from *cough* zdoom *cough*
// [RH] We also need to adjust the openings pointers that
// were already stored in drawsegs.
for (drawseg_t *ds = drawsegs; ds < ds_p; ds++)
{
// Check if it's in range of the openings
if (ds->sprtopclip + ds->x1 >= oldopenings && ds->sprtopclip + ds->x1 <= oldlast)
ds->sprtopclip = (ds->sprtopclip - oldopenings) + openings;
if (ds->sprbottomclip + ds->x1 >= oldopenings && ds->sprbottomclip + ds->x1 <= oldlast)
ds->sprbottomclip = (ds->sprbottomclip - oldopenings) + openings;
}
}
static void R_AllocTextureColumnTables(size_t range)
{
size_t pos = curtexturecolumntable - texturecolumntable;
// For both tables, we reserve exactly an amount of memory that's equivalent to
// how many columns the seg will take on the entire screen (think about it)
if (pos + range < texturecolumntablesize)
return;
fixed_t *oldtable = texturecolumntable;
fixed_t *oldlast = curtexturecolumntable;
if (texturecolumntablesize == 0)
texturecolumntablesize = 16384;
texturecolumntablesize += range;
texturecolumntable = Z_Realloc(texturecolumntable, texturecolumntablesize * sizeof (*texturecolumntable), PU_STATIC, NULL);
curtexturecolumntable = texturecolumntable + pos;
for (drawseg_t *ds = drawsegs; ds < ds_p; ds++)
{
// Check if it's in range of the tables
if (ds->maskedtexturecol + ds->x1 >= oldtable && ds->maskedtexturecol + ds->x1 <= oldlast)
ds->maskedtexturecol = (ds->maskedtexturecol - oldtable) + texturecolumntable;
if (ds->thicksidecol + ds->x1 >= oldtable && ds->thicksidecol + ds->x1 <= oldlast)
ds->thicksidecol = (ds->thicksidecol - oldtable) + texturecolumntable;
}
}
//
// R_StoreWallRange
// A wall segment will be drawn
@ -1580,37 +1597,6 @@ void R_StoreWallRange(INT32 start, INT32 stop)
ds_p->curline = curline;
rw_stopx = stop+1;
//SoM: Code to remove limits on openings.
{
size_t pos = lastopening - openings;
size_t need = (rw_stopx - start)*4 + pos;
if (need > maxopenings)
{
drawseg_t *ds; //needed for fix from *cough* zdoom *cough*
INT16 *oldopenings = openings;
INT16 *oldlast = lastopening;
do
maxopenings = maxopenings ? maxopenings*2 : 16384;
while (need > maxopenings);
openings = Z_Realloc(openings, maxopenings * sizeof (*openings), PU_STATIC, NULL);
lastopening = openings + pos;
// borrowed fix from *cough* zdoom *cough*
// [RH] We also need to adjust the openings pointers that
// were already stored in drawsegs.
for (ds = drawsegs; ds < ds_p; ds++)
{
#define ADJUST(p) if (ds->p + ds->x1 >= oldopenings && ds->p + ds->x1 <= oldlast) ds->p = ds->p - oldopenings + openings;
ADJUST(maskedtexturecol);
ADJUST(sprtopclip);
ADJUST(sprbottomclip);
ADJUST(thicksidecol);
#undef ADJUST
}
}
} // end of code to remove limits on openings
// calculate scale at both ends and step
ds_p->scale1 = rw_scale = R_ScaleFromGlobalAngle(viewangle + xtoviewangle[start]);
@ -2026,6 +2012,8 @@ void R_StoreWallRange(INT32 start, INT32 stop)
rw_toptexturemid += sidedef->rowoffset + sidedef->offsety_top;
rw_bottomtexturemid += sidedef->rowoffset + sidedef->offsety_bot;
R_AllocTextureColumnTables(rw_stopx - start);
// allocate space for masked texture tables
if (frontsector && backsector && !Tag_Compare(&frontsector->tags, &backsector->tags) && (backsector->ffloors || frontsector->ffloors))
{
@ -2040,8 +2028,8 @@ void R_StoreWallRange(INT32 start, INT32 stop)
//markceiling = markfloor = true;
maskedtexture = true;
ds_p->thicksidecol = maskedtexturecol = lastopening - rw_x;
lastopening += rw_stopx - rw_x;
ds_p->thicksidecol = maskedtexturecol = curtexturecolumntable - rw_x;
curtexturecolumntable += rw_stopx - rw_x;
lowcut = max(worldbottom, worldlow) + viewz;
highcut = min(worldtop, worldhigh) + viewz;
@ -2224,8 +2212,8 @@ void R_StoreWallRange(INT32 start, INT32 stop)
// masked midtexture
if (!ds_p->thicksidecol)
{
ds_p->maskedtexturecol = maskedtexturecol = lastopening - rw_x;
lastopening += rw_stopx - rw_x;
ds_p->maskedtexturecol = maskedtexturecol = curtexturecolumntable - rw_x;
curtexturecolumntable += rw_stopx - rw_x;
}
else
ds_p->maskedtexturecol = ds_p->thicksidecol;
@ -2737,29 +2725,34 @@ void R_StoreWallRange(INT32 start, INT32 stop)
ds_p->portalpass = 0;
// save sprite clipping info
if (((ds_p->silhouette & SIL_TOP) || maskedtexture) && !ds_p->sprtopclip)
if (maskedtexture || (ds_p->silhouette & (SIL_TOP | SIL_BOTTOM)))
{
M_Memcpy(lastopening, ceilingclip+start, 2*(rw_stopx - start));
ds_p->sprtopclip = lastopening - start;
lastopening += rw_stopx - start;
}
R_AllocClippingTables(rw_stopx - start);
if (((ds_p->silhouette & SIL_BOTTOM) || maskedtexture) && !ds_p->sprbottomclip)
{
M_Memcpy(lastopening, floorclip + start, 2*(rw_stopx-start));
ds_p->sprbottomclip = lastopening - start;
lastopening += rw_stopx - start;
if (((ds_p->silhouette & SIL_TOP) || maskedtexture) && !ds_p->sprtopclip)
{
M_Memcpy(lastopening, ceilingclip + start, 2*(rw_stopx - start));
ds_p->sprtopclip = lastopening - start;
lastopening += rw_stopx - start;
}
if (((ds_p->silhouette & SIL_BOTTOM) || maskedtexture) && !ds_p->sprbottomclip)
{
M_Memcpy(lastopening, floorclip + start, 2*(rw_stopx - start));
ds_p->sprbottomclip = lastopening - start;
lastopening += rw_stopx - start;
}
}
if (maskedtexture && !(ds_p->silhouette & SIL_TOP))
{
ds_p->silhouette |= SIL_TOP;
ds_p->tsilheight = (sidedef->midtexture > 0 && sidedef->midtexture < numtextures) ? INT32_MIN: INT32_MAX;
ds_p->tsilheight = (sidedef->midtexture > 0 && sidedef->midtexture < numtextures) ? INT32_MIN : INT32_MAX;
}
if (maskedtexture && !(ds_p->silhouette & SIL_BOTTOM))
{
ds_p->silhouette |= SIL_BOTTOM;
ds_p->bsilheight = (sidedef->midtexture > 0 && sidedef->midtexture < numtextures) ? INT32_MAX: INT32_MIN;
ds_p->bsilheight = (sidedef->midtexture > 0 && sidedef->midtexture < numtextures) ? INT32_MAX : INT32_MIN;
}
ds_p++;
}

1
src/r_segs.h
View file

@ -22,5 +22,6 @@ transnum_t R_GetLinedefTransTable(fixed_t alpha);
void R_RenderMaskedSegRange(drawseg_t *ds, INT32 x1, INT32 x2);
void R_RenderThickSideRange(drawseg_t *ds, INT32 x1, INT32 x2, ffloor_t *pffloor);
void R_StoreWallRange(INT32 start, INT32 stop);
void R_ClearSegTables(void);
#endif