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Merge branch 'fix-1x1-floorsprite-draw' into 'next'

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Fix floorsprite rendering with 1x1 images

Closes #1052

See merge request STJr/SRB2!2141
This commit is contained in:
sphere 2023-09-08 22:35:34 +00:00
commit 0952d31369
1 changed files with 61 additions and 23 deletions
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84
src/r_splats.c
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@ -314,9 +314,7 @@ static void R_RasterizeFloorSplat(floorsplat_t *pSplat, vector2_t *verts, visspr
fixed_t planeheight = 0;
fixed_t step;
int spanfunctype = SPANDRAWFUNC_SPRITE;
prepare_rastertab();
int spanfunctype;
#define RASTERPARAMS(vnum1, vnum2, tv1, tv2, tc, dir) \
x1 = verts[vnum1].x; \
@ -367,21 +365,15 @@ static void R_RasterizeFloorSplat(floorsplat_t *pSplat, vector2_t *verts, visspr
if (ry1 > maxy) \
maxy = ry1;
// do segment a -> top of texture
RASTERPARAMS(3,2,0,pSplat->width-1,0,0);
// do segment b -> right side of texture
RASTERPARAMS(2,1,0,pSplat->width-1,pSplat->height-1,0);
// do segment c -> bottom of texture
RASTERPARAMS(1,0,pSplat->width-1,0,pSplat->height-1,0);
// do segment d -> left side of texture
RASTERPARAMS(0,3,pSplat->width-1,0,0,1);
ds_source = (UINT8 *)pSplat->pic;
ds_flatwidth = pSplat->width;
ds_flatheight = pSplat->height;
ds_powersoftwo = false;
if (R_CheckPowersOfTwo())
ds_powersoftwo = ds_solidcolor = false;
if (R_CheckSolidColorFlat())
ds_solidcolor = true;
else if (R_CheckPowersOfTwo())
{
R_SetFlatVars(ds_flatwidth * ds_flatheight);
ds_powersoftwo = true;
@ -392,9 +384,8 @@ static void R_RasterizeFloorSplat(floorsplat_t *pSplat, vector2_t *verts, visspr
R_SetTiltedSpan(0);
R_SetScaledSlopePlane(pSplat->slope, vis->viewpoint.x, vis->viewpoint.y, vis->viewpoint.z, pSplat->xscale, pSplat->yscale, -pSplat->verts[0].x, pSplat->verts[0].y, vis->viewpoint.angle, pSplat->angle);
R_CalculateSlopeVectors();
spanfunctype = SPANDRAWFUNC_TILTEDSPRITE;
}
else
else if (!ds_solidcolor)
{
planeheight = abs(pSplat->z - vis->viewpoint.z);
@ -429,23 +420,70 @@ static void R_RasterizeFloorSplat(floorsplat_t *pSplat, vector2_t *verts, visspr
ds_colormap = &vis->extra_colormap->colormap[ds_colormap - colormaps];
}
if (vis->transmap)
{
ds_transmap = vis->transmap;
ds_transmap = vis->transmap;
// Determine which R_DrawWhatever to use
// Solid color
if (ds_solidcolor)
{
UINT16 px = *(UINT16 *)ds_source;
// Uh, it's not visible.
if (!(px & 0xFF00))
return;
// Pixel color is contained in the lower 8 bits (upper 8 are the opacity), so advance the pointer
ds_source++;
if (pSplat->slope)
{
if (ds_transmap)
spanfunctype = SPANDRAWFUNC_TILTEDTRANSSOLID;
else
spanfunctype = SPANDRAWFUNC_TILTEDSOLID;
}
else
{
if (ds_transmap)
spanfunctype = SPANDRAWFUNC_TRANSSOLID;
else
spanfunctype = SPANDRAWFUNC_SOLID;
}
}
// Transparent
else if (ds_transmap)
{
if (pSplat->slope)
spanfunctype = SPANDRAWFUNC_TILTEDTRANSSPRITE;
else
spanfunctype = SPANDRAWFUNC_TRANSSPRITE;
}
// Opaque
else
ds_transmap = NULL;
{
if (pSplat->slope)
spanfunctype = SPANDRAWFUNC_TILTEDSPRITE;
else
spanfunctype = SPANDRAWFUNC_SPRITE;
}
if (ds_powersoftwo)
if (ds_powersoftwo || ds_solidcolor)
spanfunc = spanfuncs[spanfunctype];
else
spanfunc = spanfuncs_npo2[spanfunctype];
prepare_rastertab();
// do segment a -> top of texture
RASTERPARAMS(3,2,0,pSplat->width-1,0,0);
// do segment b -> right side of texture
RASTERPARAMS(2,1,0,pSplat->width-1,pSplat->height-1,0);
// do segment c -> bottom of texture
RASTERPARAMS(1,0,pSplat->width-1,0,pSplat->height-1,0);
// do segment d -> left side of texture
RASTERPARAMS(0,3,pSplat->width-1,0,0,1);
if (maxy >= vid.height)
maxy = vid.height-1;
@ -500,7 +538,7 @@ static void R_RasterizeFloorSplat(floorsplat_t *pSplat, vector2_t *verts, visspr
if (x2 < x1)
continue;
if (!pSplat->slope)
if (!ds_solidcolor && !pSplat->slope)
{
fixed_t xstep, ystep;
fixed_t distance, span;
@ -549,7 +587,7 @@ static void R_RasterizeFloorSplat(floorsplat_t *pSplat, vector2_t *verts, visspr
rastertab[y].maxx = INT32_MIN;
}
if (pSplat->angle && !pSplat->slope)
if (!ds_solidcolor && pSplat->angle && !pSplat->slope)
memset(cachedheight, 0, sizeof(cachedheight));
}