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[Software] A few floorsprite fixes 

This fixes the texture of the floorsprite sometimes facing the wrong way, since plane rendering can change the view angle.
This commit is contained in:
Jaime Ita Passos 2021-03-29 23:04:13 -03:00
parent df9b5c4312
commit 4025a1d517
8 changed files with 23 additions and 53 deletions
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6
src/r_data.c
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@ -2,7 +2,7 @@
//-----------------------------------------------------------------------------
// Copyright (C) 1993-1996 by id Software, Inc.
// Copyright (C) 1998-2000 by DooM Legacy Team.
// Copyright (C) 1999-2020 by Sonic Team Junior.
// Copyright (C) 1999-2021 by Sonic Team Junior.
//
// This program is free software distributed under the
// terms of the GNU General Public License, version 2.
@ -30,10 +30,6 @@
#include "byteptr.h"
#include "dehacked.h"
#ifdef _WIN32
#include <malloc.h> // alloca(sizeof)
#endif
//
// Graphics.
// SRB2 graphics for walls and sprites

12
src/r_draw8.c
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@ -1,7 +1,7 @@
// SONIC ROBO BLAST 2
//-----------------------------------------------------------------------------
// Copyright (C) 1998-2000 by DooM Legacy Team.
// Copyright (C) 1999-2020 by Sonic Team Junior.
// Copyright (C) 1999-2021 by Sonic Team Junior.
//
// This program is free software distributed under the
// terms of the GNU General Public License, version 2.
@ -1447,10 +1447,7 @@ void R_DrawFloorSprite_8 (void)
// SoM: Why didn't I see this earlier? the spot variable is a waste now because we don't
// have the uber complicated math to calculate it now, so that was a memory write we didn't
// need!
//
// <Callum> 4194303 = (2048x2048)-1 (2048x2048 is maximum flat size)
val = (((UINT32)yposition >> nflatyshift) & nflatmask) | ((UINT32)xposition >> nflatxshift);
val &= 4194303;
val = source[val];
if (val & 0xFF00)
dest[0] = colormap[translation[val & 0xFF]];
@ -1458,7 +1455,6 @@ void R_DrawFloorSprite_8 (void)
yposition += ystep;
val = (((UINT32)yposition >> nflatyshift) & nflatmask) | ((UINT32)xposition >> nflatxshift);
val &= 4194303;
val = source[val];
if (val & 0xFF00)
dest[1] = colormap[translation[val & 0xFF]];
@ -1466,7 +1462,6 @@ void R_DrawFloorSprite_8 (void)
yposition += ystep;
val = (((UINT32)yposition >> nflatyshift) & nflatmask) | ((UINT32)xposition >> nflatxshift);
val &= 4194303;
val = source[val];
if (val & 0xFF00)
dest[2] = colormap[translation[val & 0xFF]];
@ -1474,7 +1469,6 @@ void R_DrawFloorSprite_8 (void)
yposition += ystep;
val = (((UINT32)yposition >> nflatyshift) & nflatmask) | ((UINT32)xposition >> nflatxshift);
val &= 4194303;
val = source[val];
if (val & 0xFF00)
dest[3] = colormap[translation[val & 0xFF]];
@ -1482,7 +1476,6 @@ void R_DrawFloorSprite_8 (void)
yposition += ystep;
val = (((UINT32)yposition >> nflatyshift) & nflatmask) | ((UINT32)xposition >> nflatxshift);
val &= 4194303;
val = source[val];
if (val & 0xFF00)
dest[4] = colormap[translation[val & 0xFF]];
@ -1490,7 +1483,6 @@ void R_DrawFloorSprite_8 (void)
yposition += ystep;
val = (((UINT32)yposition >> nflatyshift) & nflatmask) | ((UINT32)xposition >> nflatxshift);
val &= 4194303;
val = source[val];
if (val & 0xFF00)
dest[5] = colormap[translation[val & 0xFF]];
@ -1498,7 +1490,6 @@ void R_DrawFloorSprite_8 (void)
yposition += ystep;
val = (((UINT32)yposition >> nflatyshift) & nflatmask) | ((UINT32)xposition >> nflatxshift);
val &= 4194303;
val = source[val];
if (val & 0xFF00)
dest[6] = colormap[translation[val & 0xFF]];
@ -1506,7 +1497,6 @@ void R_DrawFloorSprite_8 (void)
yposition += ystep;
val = (((UINT32)yposition >> nflatyshift) & nflatmask) | ((UINT32)xposition >> nflatxshift);
val &= 4194303;
val = source[val];
if (val & 0xFF00)
dest[7] = colormap[translation[val & 0xFF]];

13
src/r_plane.c
View File

@ -2,7 +2,7 @@
//-----------------------------------------------------------------------------
// Copyright (C) 1993-1996 by id Software, Inc.
// Copyright (C) 1998-2000 by DooM Legacy Team.
// Copyright (C) 1999-2020 by Sonic Team Junior.
// Copyright (C) 1999-2021 by Sonic Team Junior.
//
// This program is free software distributed under the
// terms of the GNU General Public License, version 2.
@ -154,14 +154,10 @@ static void R_UpdatePlaneRipple(void)
// R_MapPlane
//
// Uses global vars:
// planeheight
// basexscale
// baseyscale
// centerx
// viewx
// viewy
// viewsin
// viewcos
// viewheight
void R_MapPlane(INT32 y, INT32 x1, INT32 x2)
{
@ -580,7 +576,7 @@ void R_ExpandPlane(visplane_t *pl, INT32 start, INT32 stop)
//
void R_MakeSpans(INT32 x, INT32 t1, INT32 b1, INT32 t2, INT32 b2)
{
// Alam: from r_splats's R_RenderFloorSplat
// Alam: from r_splats's R_RasterizeFloorSplat
if (t1 >= vid.height) t1 = vid.height-1;
if (b1 >= vid.height) b1 = vid.height-1;
if (t2 >= vid.height) t2 = vid.height-1;
@ -607,7 +603,6 @@ void R_MakeSpans(INT32 x, INT32 t1, INT32 b1, INT32 t2, INT32 b2)
void R_DrawPlanes(void)
{
visplane_t *pl;
angle_t va = viewangle;
INT32 i;
R_UpdatePlaneRipple();
@ -622,8 +617,6 @@ void R_DrawPlanes(void)
R_DrawSinglePlane(pl);
}
}
viewangle = va;
}
// R_DrawSkyPlane

27
src/r_splats.c
View File

@ -1,7 +1,7 @@
// SONIC ROBO BLAST 2
//-----------------------------------------------------------------------------
// Copyright (C) 1998-2000 by DooM Legacy Team.
// Copyright (C) 1999-2020 by Sonic Team Junior.
// Copyright (C) 1999-2021 by Sonic Team Junior.
//
// This program is free software distributed under the
// terms of the GNU General Public License, version 2.
@ -28,11 +28,12 @@ static void prepare_rastertab(void);
// FLOOR SPLATS
// ==========================================================================
static void R_RasterizeFloorSplat(floorsplat_t *pSplat, vector2_t *verts, vissprite_t *vis);
#ifdef USEASM
void ASMCALL rasterize_segment_tex_asm(INT32 x1, INT32 y1, INT32 x2, INT32 y2, INT32 tv1, INT32 tv2, INT32 tc, INT32 dir);
#endif
// Lactozilla
static void rasterize_segment_tex(INT32 x1, INT32 y1, INT32 x2, INT32 y2, INT32 tv1, INT32 tv2, INT32 tc, INT32 dir)
{
#ifdef USEASM
@ -137,7 +138,7 @@ static void rasterize_segment_tex(INT32 x1, INT32 y1, INT32 x2, INT32 y2, INT32
}
}
void R_DrawFloorSprite(vissprite_t *spr)
void R_DrawFloorSplat(vissprite_t *spr)
{
floorsplat_t splat;
mobj_t *mobj = spr->mobj;
@ -187,7 +188,7 @@ void R_DrawFloorSprite(vissprite_t *spr)
if (spr->rotateflags & SRF_3D || renderflags & RF_NOSPLATBILLBOARD)
splatangle = mobj->angle;
else
splatangle = viewangle;
splatangle = spr->viewangle;
if (!(spr->cut & SC_ISROTATED))
splatangle += mobj->rollangle;
@ -265,7 +266,6 @@ void R_DrawFloorSprite(vissprite_t *spr)
if (splat.tilted)
{
// Lactozilla: Just copy the entire slope LMFAOOOO
pslope_t *s = &splat.slope;
s->o.x = slope->o.x;
@ -330,7 +330,7 @@ void R_DrawFloorSprite(vissprite_t *spr)
v2d[i].y = (centeryfrac + FixedMul(rot_z, yscale))>>FRACBITS;
}
R_RenderFloorSplat(&splat, v2d, spr);
R_RasterizeFloorSplat(&splat, v2d, spr);
}
// --------------------------------------------------------------------------
@ -338,7 +338,7 @@ void R_DrawFloorSprite(vissprite_t *spr)
// fill the polygon with linear interpolation, call span drawer for each
// scan line
// --------------------------------------------------------------------------
void R_RenderFloorSplat(floorsplat_t *pSplat, vector2_t *verts, vissprite_t *vis)
static void R_RasterizeFloorSplat(floorsplat_t *pSplat, vector2_t *verts, vissprite_t *vis)
{
// rasterizing
INT32 miny = viewheight + 1, maxy = 0;
@ -416,11 +416,10 @@ void R_RenderFloorSplat(floorsplat_t *pSplat, vector2_t *verts, vissprite_t *vis
if (R_CheckPowersOfTwo())
R_CheckFlatLength(ds_flatwidth * ds_flatheight);
// Lactozilla: I don't know what I'm doing
if (pSplat->tilted)
{
R_SetTiltedSpan(0);
R_CalculateSlopeVectors(&pSplat->slope, viewx, viewy, viewz, pSplat->xscale, pSplat->yscale, -pSplat->verts[0].x, pSplat->verts[0].y, viewangle, pSplat->angle, 1.0f);
R_CalculateSlopeVectors(&pSplat->slope, viewx, viewy, viewz, pSplat->xscale, pSplat->yscale, -pSplat->verts[0].x, pSplat->verts[0].y, vis->viewangle, pSplat->angle, 1.0f);
spanfunctype = SPANDRAWFUNC_TILTEDSPRITE;
}
else
@ -533,7 +532,7 @@ void R_RenderFloorSplat(floorsplat_t *pSplat, vector2_t *verts, vissprite_t *vis
fixed_t xstep, ystep;
fixed_t distance, span;
angle_t angle = (viewangle + pSplat->angle)>>ANGLETOFINESHIFT;
angle_t angle = (vis->viewangle + pSplat->angle)>>ANGLETOFINESHIFT;
angle_t planecos = FINECOSINE(angle);
angle_t planesin = FINESINE(angle);
@ -543,17 +542,13 @@ void R_RenderFloorSplat(floorsplat_t *pSplat, vector2_t *verts, vissprite_t *vis
distance = cacheddistance[y] = FixedMul(planeheight, yslope[y]);
span = abs(centery - y);
if (span) // don't divide by zero
if (span) // Don't divide by zero
{
xstep = FixedMul(planesin, planeheight) / span;
ystep = FixedMul(planecos, planeheight) / span;
}
else
{
// ah
xstep = FRACUNIT;
ystep = FRACUNIT;
}
xstep = ystep = FRACUNIT;
cachedxstep[y] = xstep;
cachedystep[y] = ystep;

3
src/r_splats.h
View File

@ -42,7 +42,6 @@ typedef struct floorsplat_s
mobj_t *mobj; // Mobj it is tied to
} floorsplat_t;
void R_DrawFloorSprite(vissprite_t *spr);
void R_RenderFloorSplat(floorsplat_t *pSplat, vector2_t *verts, vissprite_t *vis);
void R_DrawFloorSplat(vissprite_t *spr);
#endif /*__R_SPLATS_H__*/

9
src/r_textures.c
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@ -2,7 +2,7 @@
//-----------------------------------------------------------------------------
// Copyright (C) 1993-1996 by id Software, Inc.
// Copyright (C) 1998-2000 by DooM Legacy Team.
// Copyright (C) 1999-2020 by Sonic Team Junior.
// Copyright (C) 1999-2021 by Sonic Team Junior.
//
// This program is free software distributed under the
// terms of the GNU General Public License, version 2.
@ -28,11 +28,6 @@
#include "byteptr.h"
#include "dehacked.h"
// I don't know what this is even for, but r_data.c had it.
#ifdef _WIN32
#include <malloc.h> // alloca(sizeof)
#endif
#ifdef HWRENDER
#include "hardware/hw_glob.h" // HWR_LoadMapTextures
#endif
@ -626,7 +621,7 @@ void *R_GetLevelFlat(levelflat_t *levelflat)
//
// R_CheckPowersOfTwo
//
// Self-explanatory?
// Sets ds_powersoftwo true if the flat's dimensions are powers of two, and returns that.
//
boolean R_CheckPowersOfTwo(void)
{

5
src/r_things.c
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@ -2,7 +2,7 @@
//-----------------------------------------------------------------------------
// Copyright (C) 1993-1996 by id Software, Inc.
// Copyright (C) 1998-2000 by DooM Legacy Team.
// Copyright (C) 1999-2020 by Sonic Team Junior.
// Copyright (C) 1999-2021 by Sonic Team Junior.
//
// This program is free software distributed under the
// terms of the GNU General Public License, version 2.
@ -1956,6 +1956,7 @@ static void R_ProjectSprite(mobj_t *thing)
vis->paperoffset = paperoffset;
vis->paperdistance = paperdistance;
vis->centerangle = centerangle;
vis->viewangle = viewangle;
vis->shear.tan = sheartan;
vis->shear.offset = 0;
@ -2783,7 +2784,7 @@ static void R_DrawSprite(vissprite_t *spr)
mceilingclip = spr->cliptop;
if (spr->cut & SC_SPLAT)
R_DrawFloorSprite(spr);
R_DrawFloorSplat(spr);
else
R_DrawVisSprite(spr);
}

1
src/r_things.h
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@ -164,6 +164,7 @@ typedef struct vissprite_s
fixed_t xiscale; // negative if flipped
angle_t centerangle; // for paper sprites
angle_t viewangle; // for floor sprites, the viewpoint's current angle
struct {
fixed_t tan; // The amount to shear the sprite vertically per row