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Pin midtextures based on slopes, including bending on wall crossing

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This commit is contained in:
RedEnchilada 2015-05-04 15:15:57 -05:00
parent c66bb1c330
commit 1b9180111c
2 changed files with 47 additions and 3 deletions
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3
src/r_defs.h
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@ -661,6 +661,9 @@ typedef struct drawseg_s
INT16 *thicksidecol;
INT32 numthicksides;
fixed_t frontscale[MAXVIDWIDTH];
#ifdef ESLOPE
fixed_t maskedtextureheight[MAXVIDWIDTH]; // For handling sloped midtextures
#endif
} drawseg_t;
typedef enum

47
src/r_segs.c
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@ -53,6 +53,7 @@ static INT32 worldtop, worldbottom, worldhigh, worldlow;
#ifdef ESLOPE
static INT32 worldtopslope, worldbottomslope, worldhighslope, worldlowslope; // worldtop/bottom at end of slope
static fixed_t rw_toptextureslide, rw_midtextureslide, rw_bottomtextureslide; // Defines how to adjust Y offsets along the wall for slopes
static fixed_t rw_midtextureback, rw_midtexturebackslide; // Values for masked midtexture height calculation
#endif
static fixed_t pixhigh, pixlow, pixhighstep, pixlowstep;
static fixed_t topfrac, topstep;
@ -60,6 +61,9 @@ static fixed_t bottomfrac, bottomstep;
static lighttable_t **walllights;
static INT16 *maskedtexturecol;
#ifdef ESLOPE
static fixed_t *maskedtextureheight = NULL;
#endif
// ==========================================================================
// R_Splats Wall Splats Drawer
@ -478,6 +482,8 @@ void R_RenderMaskedSegRange(drawseg_t *ds, INT32 x1, INT32 x2)
spryscale = ds->scale1 + (x1 - ds->x1)*rw_scalestep;
}
#ifndef ESLOPE
if (curline->linedef->flags & ML_DONTPEGBOTTOM)
{
dc_texturemid = front->floorheight > back->floorheight
@ -496,12 +502,21 @@ void R_RenderMaskedSegRange(drawseg_t *ds, INT32 x1, INT32 x2)
dc_texturemid += (textureheight[texnum])*times;
else
dc_texturemid -= (textureheight[texnum])*times;
#endif
dc_texheight = textureheight[texnum]>>FRACBITS;
// draw the columns
for (dc_x = x1; dc_x <= x2; dc_x++)
{
#ifdef ESLOPE
dc_texturemid = ds->maskedtextureheight[dc_x];
if (curline->linedef->flags & ML_DONTPEGBOTTOM)
dc_texturemid += (textureheight[texnum])*times + textureheight[texnum];
else
dc_texturemid -= (textureheight[texnum])*times;
#endif
// calculate lighting
if (maskedtexturecol[dc_x] != INT16_MAX)
{
@ -1205,9 +1220,10 @@ static void R_RenderSegLoop (void)
#ifdef ESLOPE
if (oldtexturecolumn != -1) {
rw_bottomtexturemid += FixedMul(rw_bottomtextureslide, oldtexturecolumn-texturecolumn);
rw_midtexturemid += FixedMul(rw_midtextureslide, oldtexturecolumn-texturecolumn);
rw_toptexturemid += FixedMul(rw_toptextureslide, oldtexturecolumn-texturecolumn);
rw_bottomtexturemid += FixedMul(rw_bottomtextureslide, oldtexturecolumn-texturecolumn);
rw_midtexturemid += FixedMul(rw_midtextureslide, oldtexturecolumn-texturecolumn);
rw_toptexturemid += FixedMul(rw_toptextureslide, oldtexturecolumn-texturecolumn);
rw_midtextureback += FixedMul(rw_midtexturebackslide, oldtexturecolumn-texturecolumn);
}
oldtexturecolumn = texturecolumn;
#endif
@ -1360,6 +1376,14 @@ static void R_RenderSegLoop (void)
// save texturecol
// for backdrawing of masked mid texture
maskedtexturecol[rw_x] = (INT16)texturecolumn;
#ifdef ESLOPE
if (maskedtexture) {
maskedtextureheight[rw_x] = (curline->linedef->flags & ML_DONTPEGBOTTOM ?
max(rw_midtexturemid, rw_midtextureback) :
min(rw_midtexturemid, rw_midtextureback));
}
#endif
}
if (dc_numlights)
@ -2120,6 +2144,23 @@ void R_StoreWallRange(INT32 start, INT32 stop)
else
ds_p->maskedtexturecol = ds_p->thicksidecol;
#ifdef ESLOPE
maskedtextureheight = &(ds_p->maskedtextureheight[0]); // ????
// Set midtexture starting height
if (linedef->flags & ML_DONTPEGBOTTOM) {
rw_midtexturemid = worldbottom;
rw_midtextureslide = floorfrontslide;
rw_midtextureback = worldlow;
rw_midtexturebackslide = floorbackslide;
} else {
rw_midtexturemid = worldtop;
rw_midtextureslide = ceilingfrontslide;
rw_midtextureback = worldhigh;
rw_midtexturebackslide = ceilingbackslide;
}
#endif
maskedtexture = true;
}
}