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Renderer floatification: Use floating point for wall scale and yrepeat

This commit is contained in:
Randy Heit 2016-04-22 22:54:04 -05:00
parent 1f97488945
commit f1b3f59bcc
10 changed files with 115 additions and 122 deletions
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2
src/r_bsp.h
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@ -82,7 +82,7 @@ struct drawseg_t
ptrdiff_t sprtopclip; // type short
ptrdiff_t sprbottomclip; // type short
ptrdiff_t maskedtexturecol; // type short
ptrdiff_t swall; // type fixed_t
ptrdiff_t swall; // type float
int fake; // ident fake drawseg, don't draw and clip sprites
// backups
ptrdiff_t bkup; // sprtopclip backup, for mid and fake textures

6
src/r_draw.h
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@ -285,12 +285,12 @@ bool R_GetTransMaskDrawers (fixed_t (**tmvline1)(), void (**tmvline4)());
// to just use the texture's GetColumn() method. It just exists
// for double-layer skies.
const BYTE *R_GetColumn (FTexture *tex, int col);
void wallscan (int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed_t *lwal, fixed_t yrepeat, const BYTE *(*getcol)(FTexture *tex, int col)=R_GetColumn);
void wallscan (int x1, int x2, short *uwal, short *dwal, float *swal, fixed_t *lwal, double yrepeat, const BYTE *(*getcol)(FTexture *tex, int col)=R_GetColumn);
// maskwallscan is exactly like wallscan but does not draw anything where the texture is color 0.
void maskwallscan (int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed_t *lwal, fixed_t yrepeat, const BYTE *(*getcol)(FTexture *tex, int col)=R_GetColumn);
void maskwallscan (int x1, int x2, short *uwal, short *dwal, float *swal, fixed_t *lwal, double yrepeat, const BYTE *(*getcol)(FTexture *tex, int col)=R_GetColumn);
// transmaskwallscan is like maskwallscan, but it can also blend to the background
void transmaskwallscan (int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed_t *lwal, fixed_t yrepeat, const BYTE *(*getcol)(FTexture *tex, int col)=R_GetColumn);
void transmaskwallscan (int x1, int x2, short *uwal, short *dwal, float *swal, fixed_t *lwal, double yrepeat, const BYTE *(*getcol)(FTexture *tex, int col)=R_GetColumn);
#endif

2
src/r_main.cpp
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@ -383,7 +383,7 @@ void R_SWRSetWindow(int windowSize, int fullWidth, int fullHeight, int stHeight,
IYaspectMul = (double)virtwidth * r_Yaspect / 320.0 / virtheight;
InvZtoScale = YaspectMul * CenterX;
WallTMapScale2 = IYaspectMul * (1 << 18) / CenterX;
WallTMapScale2 = IYaspectMul / CenterX;
// psprite scales
pspritexscale = centerxwide / 160.0;

24
src/r_plane.cpp
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@ -848,7 +848,7 @@ static double skymid;
static angle_t skyangle;
static double frontiScale;
extern fixed_t swall[MAXWIDTH];
extern float swall[MAXWIDTH];
extern fixed_t lwall[MAXWIDTH];
extern fixed_t rw_offset;
extern FTexture *rw_pic;
@ -916,13 +916,16 @@ static const BYTE *R_GetTwoSkyColumns (FTexture *fronttex, int x)
static void R_DrawSky (visplane_t *pl)
{
int x;
float swal;
if (pl->left >= pl->right)
return;
dc_iscale = skyiscale;
clearbuf (swall+pl->left, pl->right-pl->left, dc_iscale<<2);
swal = skyiscale;
for (x = pl->left; x < pl->right; ++x)
{
swall[x] = swal;
}
if (MirrorFlags & RF_XFLIP)
{
@ -957,20 +960,12 @@ static void R_DrawSky (visplane_t *pl)
lastskycol[x] = 0xffffffff;
}
wallscan (pl->left, pl->right, (short *)pl->top, (short *)pl->bottom, swall, lwall,
FLOAT2FIXED(frontyScale), backskytex == NULL ? R_GetOneSkyColumn : R_GetTwoSkyColumns);
frontyScale, backskytex == NULL ? R_GetOneSkyColumn : R_GetTwoSkyColumns);
}
else
{ // The texture does not tile nicely
frontyScale *= skyscale;
frontiScale = 1 / frontyScale;
// Sodding crap. Fixed point sucks when you want precision.
// TODO (if I'm feeling adventurous): Rewrite the renderer to use floating point
// coordinates to keep as much precision as possible until the final
// rasterization stage so fudges like this aren't needed.
if (viewheight <= 600)
{
skymid -= 1;
}
R_DrawSkyStriped (pl);
}
}
@ -989,7 +984,6 @@ static void R_DrawSkyStriped (visplane_t *pl)
yl = 0;
yh = short((frontskytex->GetHeight() - topfrac) * frontyScale);
dc_texturemid = topfrac - iscale * (1 - CenterY);
fixed_t yScale = FLOAT2FIXED(rw_pic->Scale.Y);
while (yl < viewheight)
{
@ -1002,7 +996,7 @@ static void R_DrawSkyStriped (visplane_t *pl)
{
lastskycol[x] = 0xffffffff;
}
wallscan (pl->left, pl->right, top, bot, swall, lwall, yScale,
wallscan (pl->left, pl->right, top, bot, swall, lwall, rw_pic->Scale.Y,
backskytex == NULL ? R_GetOneSkyColumn : R_GetTwoSkyColumns);
yl = yh;
yh += drawheight;

160
src/r_segs.cpp
View File

@ -91,7 +91,7 @@ short walltop[MAXWIDTH]; // [RH] record max extents of wall
short wallbottom[MAXWIDTH];
short wallupper[MAXWIDTH];
short walllower[MAXWIDTH];
fixed_t swall[MAXWIDTH];
float swall[MAXWIDTH];
fixed_t lwall[MAXWIDTH];
double lwallscale;
@ -136,9 +136,9 @@ static fixed_t *maskedtexturecol;
static void R_RenderDecal (side_t *wall, DBaseDecal *first, drawseg_t *clipper, int pass);
static void WallSpriteColumn (void (*drawfunc)(const BYTE *column, const FTexture::Span *spans));
void wallscan_np2(int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed_t *lwal, fixed_t yrepeat, double top, double bot, bool mask);
static void wallscan_np2_ds(drawseg_t *ds, int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed_t *lwal, fixed_t yrepeat);
static void call_wallscan(int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed_t *lwal, fixed_t yrepeat, bool mask);
void wallscan_np2(int x1, int x2, short *uwal, short *dwal, float *swal, fixed_t *lwal, double yrepeat, double top, double bot, bool mask);
static void wallscan_np2_ds(drawseg_t *ds, int x1, int x2, short *uwal, short *dwal, float *swal, fixed_t *lwal, double yrepeat);
static void call_wallscan(int x1, int x2, short *uwal, short *dwal, float *swal, fixed_t *lwal, double yrepeat, bool mask);
//=============================================================================
//
@ -169,8 +169,8 @@ CVAR(Bool, r_drawmirrors, true, 0)
//
// R_RenderMaskedSegRange
//
fixed_t *MaskedSWall;
double MaskedScaleY;
float *MaskedSWall;
float MaskedScaleY;
static void BlastMaskedColumn (void (*blastfunc)(const BYTE *pixels, const FTexture::Span *spans), FTexture *tex)
{
@ -180,7 +180,7 @@ static void BlastMaskedColumn (void (*blastfunc)(const BYTE *pixels, const FText
dc_colormap = basecolormap->Maps + (GETPALOOKUP (rw_light, wallshade) << COLORMAPSHIFT);
}
dc_iscale = xs_RoundToInt(MaskedSWall[dc_x] * MaskedScaleY);
dc_iscale = xs_Fix<16>::ToFix(MaskedSWall[dc_x] * MaskedScaleY);
if (sprflipvert)
sprtopscreen = CenterY + dc_texturemid * spryscale;
else
@ -305,7 +305,7 @@ void R_RenderMaskedSegRange (drawseg_t *ds, int x1, int x2)
goto clearfog;
}
MaskedSWall = (fixed_t *)(openings + ds->swall) - ds->x1;
MaskedSWall = (float *)(openings + ds->swall) - ds->x1;
MaskedScaleY = ds->yscale;
maskedtexturecol = (fixed_t *)(openings + ds->maskedtexturecol) - ds->x1;
spryscale = ds->iscale + ds->iscalestep * (x1 - ds->x1);
@ -433,7 +433,6 @@ void R_RenderMaskedSegRange (drawseg_t *ds, int x1, int x2)
mfloorclip = walllower;
mceilingclip = wallupper;
MaskedScaleY /= 4; // [RH] Wish I could remember why this needs to be done
// draw the columns one at a time
if (drawmode == DoDraw0)
@ -531,7 +530,7 @@ void R_RenderMaskedSegRange (drawseg_t *ds, int x1, int x2)
rw_offset = 0;
rw_pic = tex;
wallscan_np2_ds(ds, x1, x2, mceilingclip, mfloorclip, MaskedSWall, maskedtexturecol, FLOAT2FIXED(ds->yscale));
wallscan_np2_ds(ds, x1, x2, mceilingclip, mfloorclip, MaskedSWall, maskedtexturecol, ds->yscale);
}
clearfog:
@ -580,7 +579,7 @@ void R_RenderFakeWall(drawseg_t *ds, int x1, int x2, F3DFloor *rover)
spryscale = ds->iscale + ds->iscalestep * (x1 - ds->x1);
rw_scalestep = ds->iscalestep;
MaskedSWall = (fixed_t *)(openings + ds->swall) - ds->x1;
MaskedSWall = (float *)(openings + ds->swall) - ds->x1;
// find positioning
side_t *scaledside;
@ -656,7 +655,7 @@ void R_RenderFakeWall(drawseg_t *ds, int x1, int x2, F3DFloor *rover)
}
PrepLWall (lwall, curline->sidedef->TexelLength*xscale, ds->sx1, ds->sx2);
wallscan_np2_ds(ds, x1, x2, wallupper, walllower, MaskedSWall, lwall, FLOAT2FIXED(yscale));
wallscan_np2_ds(ds, x1, x2, wallupper, walllower, MaskedSWall, lwall, yscale);
R_FinishSetPatchStyle();
}
@ -1074,15 +1073,16 @@ inline fixed_t prevline1 (fixed_t vince, BYTE *colormap, int count, fixed_t vplc
return doprevline1 ();
}
void wallscan (int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed_t *lwal,
fixed_t yrepeat, const BYTE *(*getcol)(FTexture *tex, int x))
void wallscan (int x1, int x2, short *uwal, short *dwal, float *swal, fixed_t *lwal,
double yrepeat, const BYTE *(*getcol)(FTexture *tex, int x))
{
int x, shiftval;
int x, fracbits;
int y1ve[4], y2ve[4], u4, d4, z;
char bad;
float light = rw_light - rw_lightstep;
SDWORD texturemid, xoffset;
SDWORD xoffset;
BYTE *basecolormapdata;
double iscale;
// This function also gets used to draw skies. Unlike BUILD, skies are
// drawn by visplane instead of by bunch, so these checks are invalid.
@ -1098,13 +1098,10 @@ void wallscan (int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed_t
//clock (WallScanCycles);
rw_pic->GetHeight(); // Make sure texture size is loaded
shiftval = rw_pic->HeightBits;
setupvline (32-shiftval);
yrepeat >>= 2 + shiftval;
texturemid = xs_ToFixed(32 - shiftval, dc_texturemid);
fracbits = 32 - rw_pic->HeightBits;
setupvline(fracbits);
xoffset = rw_offset;
basecolormapdata = basecolormap->Maps;
fixed_t centeryfrac = FLOAT2FIXED(CenterY);
x = x1;
//while ((umost[x] > dmost[x]) && (x < x2)) x++;
@ -1134,9 +1131,10 @@ void wallscan (int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed_t
dc_source = getcol (rw_pic, (lwal[x] + xoffset) >> FRACBITS);
dc_dest = ylookup[y1ve[0]] + x + dc_destorg;
dc_iscale = swal[x] * yrepeat;
dc_count = y2ve[0] - y1ve[0];
dc_texturefrac = texturemid + FixedMul (dc_iscale, (y1ve[0]<<FRACBITS)-centeryfrac+FRACUNIT);
iscale = swal[x] * yrepeat;
dc_iscale = xs_ToFixed(fracbits, iscale);
dc_texturefrac = xs_ToFixed(fracbits, dc_texturemid + iscale * (y1ve[0] - CenterY + 1));
dovline1();
}
@ -1153,8 +1151,9 @@ void wallscan (int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed_t
assert (y2ve[z] <= viewheight);
bufplce[z] = getcol (rw_pic, (lwal[x+z] + xoffset) >> FRACBITS);
vince[z] = swal[x+z] * yrepeat;
vplce[z] = texturemid + FixedMul (vince[z], (y1ve[z]<<FRACBITS)-centeryfrac+FRACUNIT);
iscale = swal[x + z] * yrepeat;
vince[z] = xs_ToFixed(fracbits, iscale);
vplce[z] = xs_ToFixed(fracbits, dc_texturemid + iscale * (y1ve[z] - CenterY + 1));
}
if (bad == 15)
{
@ -1227,9 +1226,10 @@ void wallscan (int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed_t
dc_source = getcol (rw_pic, (lwal[x] + xoffset) >> FRACBITS);
dc_dest = ylookup[y1ve[0]] + x + dc_destorg;
dc_iscale = swal[x] * yrepeat;
dc_count = y2ve[0] - y1ve[0];
dc_texturefrac = texturemid + FixedMul (dc_iscale, (y1ve[0]<<FRACBITS)-centeryfrac+FRACUNIT);
iscale = swal[x] * yrepeat;
dc_iscale = xs_ToFixed(fracbits, iscale);
dc_texturefrac = xs_ToFixed(fracbits, dc_texturemid + iscale * (y1ve[0] - CenterY + 1));
dovline1();
}
@ -1239,7 +1239,7 @@ void wallscan (int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed_t
NetUpdate ();
}
void wallscan_striped (int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed_t *lwal, fixed_t yrepeat)
void wallscan_striped (int x1, int x2, short *uwal, short *dwal, float *swal, fixed_t *lwal, double yrepeat)
{
FDynamicColormap *startcolormap = basecolormap;
int startshade = wallshade;
@ -1280,7 +1280,7 @@ void wallscan_striped (int x1, int x2, short *uwal, short *dwal, fixed_t *swal,
wallshade = startshade;
}
static void call_wallscan(int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed_t *lwal, fixed_t yrepeat, bool mask)
static void call_wallscan(int x1, int x2, short *uwal, short *dwal, float *swal, fixed_t *lwal, double yrepeat, bool mask)
{
if (mask)
{
@ -1317,11 +1317,11 @@ static void call_wallscan(int x1, int x2, short *uwal, short *dwal, fixed_t *swa
//
//=============================================================================
void wallscan_np2(int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed_t *lwal, fixed_t yrep, double top, double bot, bool mask)
void wallscan_np2(int x1, int x2, short *uwal, short *dwal, float *swal, fixed_t *lwal, double yrepeat, double top, double bot, bool mask)
{
if (!r_np2)
{
call_wallscan(x1, x2, uwal, dwal, swal, lwal, yrep, mask);
call_wallscan(x1, x2, uwal, dwal, swal, lwal, yrepeat, mask);
}
else
{
@ -1329,7 +1329,6 @@ void wallscan_np2(int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed
short *up, *down;
double texheight = rw_pic->GetHeight();
double partition;
double yrepeat = FIXED2FLOAT(yrep);
double scaledtexheight = texheight / yrepeat;
if (yrepeat >= 0)
@ -1351,14 +1350,14 @@ void wallscan_np2(int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed
{
down[j] = clamp(most3[j], up[j], dwal[j]);
}
call_wallscan(x1, x2, up, down, swal, lwal, yrep, mask);
call_wallscan(x1, x2, up, down, swal, lwal, yrepeat, mask);
up = down;
down = (down == most1) ? most2 : most1;
}
partition -= scaledtexheight;
dc_texturemid -= texheight;
}
call_wallscan(x1, x2, up, dwal, swal, lwal, yrep, mask);
call_wallscan(x1, x2, up, dwal, swal, lwal, yrepeat, mask);
}
else
{ // upside down: draw strips from bottom to top
@ -1375,19 +1374,19 @@ void wallscan_np2(int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed
{
up[j] = clamp(most3[j], uwal[j], down[j]);
}
call_wallscan(x1, x2, up, down, swal, lwal, yrep, mask);
call_wallscan(x1, x2, up, down, swal, lwal, yrepeat, mask);
down = up;
up = (up == most1) ? most2 : most1;
}
partition -= scaledtexheight;
dc_texturemid -= texheight;
}
call_wallscan(x1, x2, uwal, down, swal, lwal, yrep, mask);
call_wallscan(x1, x2, uwal, down, swal, lwal, yrepeat, mask);
}
}
}
static void wallscan_np2_ds(drawseg_t *ds, int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed_t *lwal, fixed_t yrepeat)
static void wallscan_np2_ds(drawseg_t *ds, int x1, int x2, short *uwal, short *dwal, float *swal, fixed_t *lwal, double yrepeat)
{
if (rw_pic->GetHeight() != 1 << rw_pic->HeightBits)
{
@ -1424,16 +1423,17 @@ inline fixed_t mvline1 (fixed_t vince, BYTE *colormap, int count, fixed_t vplce,
return domvline1 ();
}
void maskwallscan (int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed_t *lwal,
fixed_t yrepeat, const BYTE *(*getcol)(FTexture *tex, int x))
void maskwallscan (int x1, int x2, short *uwal, short *dwal, float *swal, fixed_t *lwal,
double yrepeat, const BYTE *(*getcol)(FTexture *tex, int x))
{
int x, shiftval;
int x, fracbits;
BYTE *p;
int y1ve[4], y2ve[4], u4, d4, startx, dax, z;
char bad;
float light = rw_light - rw_lightstep;
SDWORD texturemid, xoffset;
SDWORD xoffset;
BYTE *basecolormapdata;
double iscale;
if (rw_pic->UseType == FTexture::TEX_Null)
{
@ -1450,13 +1450,10 @@ void maskwallscan (int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixe
//clock (WallScanCycles);
rw_pic->GetHeight(); // Make sure texture size is loaded
shiftval = rw_pic->HeightBits;
setupmvline (32-shiftval);
yrepeat >>= 2 + shiftval;
texturemid = xs_ToFixed(32 - shiftval, dc_texturemid);
fracbits = 32- rw_pic->HeightBits;
setupmvline(fracbits);
xoffset = rw_offset;
basecolormapdata = basecolormap->Maps;
fixed_t centeryfrac = FLOAT2FIXED(CenterY);
x = startx = x1;
p = x + dc_destorg;
@ -1484,9 +1481,10 @@ void maskwallscan (int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixe
dc_source = getcol (rw_pic, (lwal[x] + xoffset) >> FRACBITS);
dc_dest = ylookup[y1ve[0]] + p;
dc_iscale = swal[x] * yrepeat;
dc_count = y2ve[0] - y1ve[0];
dc_texturefrac = texturemid + FixedMul (dc_iscale, (y1ve[0]<<FRACBITS)-centeryfrac+FRACUNIT);
iscale = swal[x] * yrepeat;
dc_iscale = xs_ToFixed(fracbits, iscale);
dc_texturefrac = xs_ToFixed(fracbits, dc_texturemid + iscale * (y1ve[0] - CenterY + 1));
domvline1();
}
@ -1501,8 +1499,9 @@ void maskwallscan (int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixe
if (y2ve[z] <= y1ve[z]) { bad += 1<<z; continue; }
bufplce[z] = getcol (rw_pic, (lwal[dax] + xoffset) >> FRACBITS);
vince[z] = swal[dax] * yrepeat;
vplce[z] = texturemid + FixedMul (vince[z], (y1ve[z]<<FRACBITS)-centeryfrac+FRACUNIT);
iscale = swal[dax] * yrepeat;
vince[z] = xs_ToFixed(fracbits, iscale);
vplce[z] = xs_ToFixed(fracbits, dc_texturemid + iscale * (y1ve[z] - CenterY + 1));
}
if (bad == 15)
{
@ -1573,9 +1572,10 @@ void maskwallscan (int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixe
dc_source = getcol (rw_pic, (lwal[x] + xoffset) >> FRACBITS);
dc_dest = ylookup[y1ve[0]] + p;
dc_iscale = swal[x] * yrepeat;
dc_count = y2ve[0] - y1ve[0];
dc_texturefrac = texturemid + FixedMul (dc_iscale, (y1ve[0]<<FRACBITS)-centeryfrac+FRACUNIT);
iscale = swal[x] * yrepeat;
dc_iscale = xs_ToFixed(fracbits, iscale);
dc_texturefrac = xs_ToFixed(fracbits, dc_texturemid + iscale * (y1ve[0] - CenterY + 1));
domvline1();
}
@ -1595,18 +1595,19 @@ inline void preptmvline1 (fixed_t vince, BYTE *colormap, int count, fixed_t vplc
dc_dest = dest;
}
void transmaskwallscan (int x1, int x2, short *uwal, short *dwal, fixed_t *swal, fixed_t *lwal,
fixed_t yrepeat, const BYTE *(*getcol)(FTexture *tex, int x))
void transmaskwallscan (int x1, int x2, short *uwal, short *dwal, float *swal, fixed_t *lwal,
double yrepeat, const BYTE *(*getcol)(FTexture *tex, int x))
{
fixed_t (*tmvline1)();
void (*tmvline4)();
int x, shiftval;
int x, fracbits;
BYTE *p;
int y1ve[4], y2ve[4], u4, d4, startx, dax, z;
char bad;
float light = rw_light - rw_lightstep;
SDWORD texturemid, xoffset;
SDWORD xoffset;
BYTE *basecolormapdata;
double iscale;
if (rw_pic->UseType == FTexture::TEX_Null)
{
@ -1624,10 +1625,8 @@ void transmaskwallscan (int x1, int x2, short *uwal, short *dwal, fixed_t *swal,
//clock (WallScanCycles);
rw_pic->GetHeight(); // Make sure texture size is loaded
shiftval = rw_pic->HeightBits;
setuptmvline (32-shiftval);
yrepeat >>= 2 + shiftval;
texturemid = xs_ToFixed(32 - shiftval, dc_texturemid);
fracbits = 32 - rw_pic->HeightBits;
setuptmvline(fracbits);
xoffset = rw_offset;
basecolormapdata = basecolormap->Maps;
fixed_t centeryfrac = FLOAT2FIXED(CenterY);
@ -1658,9 +1657,10 @@ void transmaskwallscan (int x1, int x2, short *uwal, short *dwal, fixed_t *swal,
dc_source = getcol (rw_pic, (lwal[x] + xoffset) >> FRACBITS);
dc_dest = ylookup[y1ve[0]] + p;
dc_iscale = swal[x] * yrepeat;
dc_count = y2ve[0] - y1ve[0];
dc_texturefrac = texturemid + FixedMul (dc_iscale, (y1ve[0]<<FRACBITS)-centeryfrac+FRACUNIT);
iscale = swal[x] * yrepeat;
dc_iscale = xs_ToFixed(fracbits, iscale);
dc_texturefrac = xs_ToFixed(fracbits, dc_texturemid + iscale * (y1ve[0] - CenterY + 1));
tmvline1();
}
@ -1675,8 +1675,9 @@ void transmaskwallscan (int x1, int x2, short *uwal, short *dwal, fixed_t *swal,
if (y2ve[z] <= y1ve[z]) { bad += 1<<z; continue; }
bufplce[z] = getcol (rw_pic, (lwal[dax] + xoffset) >> FRACBITS);
vince[z] = swal[dax] * yrepeat;
vplce[z] = texturemid + FixedMul (vince[z], (y1ve[z]<<FRACBITS)-centeryfrac+FRACUNIT);
iscale = swal[dax] * yrepeat;
vince[z] = xs_ToFixed(fracbits, iscale);
vplce[z] = xs_ToFixed(fracbits, dc_texturemid + vince[z] * (y1ve[z] - CenterY + 1));
}
if (bad == 15)
{
@ -1750,9 +1751,10 @@ void transmaskwallscan (int x1, int x2, short *uwal, short *dwal, fixed_t *swal,
dc_source = getcol (rw_pic, (lwal[x] + xoffset) >> FRACBITS);
dc_dest = ylookup[y1ve[0]] + p;
dc_iscale = swal[x] * yrepeat;
dc_count = y2ve[0] - y1ve[0];
dc_texturefrac = texturemid + FixedMul (dc_iscale, (y1ve[0]<<FRACBITS)-centeryfrac+FRACUNIT);
iscale = swal[x] * yrepeat;
dc_iscale = xs_ToFixed(fracbits, iscale);
dc_texturefrac = xs_ToFixed(fracbits, dc_texturemid + iscale * (y1ve[0] - CenterY + 1));
tmvline1();
}
@ -1778,7 +1780,7 @@ void R_RenderSegLoop ()
int x2 = rw_stopx;
int x;
double xscale;
fixed_t yscale;
double yscale;
fixed_t xoffset = rw_offset;
if (fixedlightlev >= 0)
@ -1868,7 +1870,7 @@ void R_RenderSegLoop ()
dc_texturemid = rw_midtexturemid;
rw_pic = midtexture;
xscale = rw_pic->Scale.X * rw_midtexturescalex;
yscale = FLOAT2FIXED(rw_pic->Scale.Y * rw_midtexturescaley);
yscale = rw_pic->Scale.Y * rw_midtexturescaley;
if (xscale != lwallscale)
{
PrepLWall (lwall, curline->sidedef->TexelLength*xscale, WallC.sx1, WallC.sx2);
@ -1911,7 +1913,7 @@ void R_RenderSegLoop ()
dc_texturemid = rw_toptexturemid;
rw_pic = toptexture;
xscale = rw_pic->Scale.X * rw_toptexturescalex;
yscale = FLOAT2FIXED(rw_pic->Scale.Y * rw_toptexturescaley);
yscale = rw_pic->Scale.Y * rw_toptexturescaley;
if (xscale != lwallscale)
{
PrepLWall (lwall, curline->sidedef->TexelLength*xscale, WallC.sx1, WallC.sx2);
@ -1957,7 +1959,7 @@ void R_RenderSegLoop ()
dc_texturemid = rw_bottomtexturemid;
rw_pic = bottomtexture;
xscale = rw_pic->Scale.X * rw_bottomtexturescalex;
yscale = FLOAT2FIXED(rw_pic->Scale.Y * rw_bottomtexturescaley);
yscale = rw_pic->Scale.Y * rw_bottomtexturescaley;
if (xscale != lwallscale)
{
PrepLWall (lwall, curline->sidedef->TexelLength*xscale, WallC.sx1, WallC.sx2);
@ -2228,7 +2230,7 @@ void R_NewWall (bool needlights)
rowoffset = sidedef->GetTextureYOffsetF(side_t::bottom);
rw_bottomtexturescalex = FIXED2DBL(sidedef->GetTextureXScale(side_t::bottom));
rw_bottomtexturescaley = FIXED2DBL(sidedef->GetTextureYScale(side_t::bottom));
yrepeat = fixed_t(bottomtexture->Scale.Y * rw_bottomtexturescaley);
yrepeat = bottomtexture->Scale.Y * rw_bottomtexturescaley;
if (yrepeat >= 0)
{ // normal orientation
if (linedef->flags & ML_DONTPEGBOTTOM)
@ -2492,7 +2494,7 @@ void R_StoreWallRange (int start, int stop)
(rw_floorstat != 3 || !sidedef->GetTexture(side_t::bottom).isValid()) &&
(WallC.sz1 >= TOO_CLOSE_Z && WallC.sz2 >= TOO_CLOSE_Z))
{
fixed_t *swal;
float *swal;
fixed_t *lwal;
int i;
@ -2512,7 +2514,7 @@ void R_StoreWallRange (int start, int stop)
ds_p->swall = R_NewOpening ((stop - start) * 2);
lwal = (fixed_t *)(openings + ds_p->maskedtexturecol);
swal = (fixed_t *)(openings + ds_p->swall);
swal = (float *)(openings + ds_p->swall);
FTexture *pic = TexMan(sidedef->GetTexture(side_t::mid), true);
double yscale = pic->Scale.X * sidedef->GetTextureYScaleF(side_t::mid);
fixed_t xoffset = sidedef->GetTextureXOffset(side_t::mid);
@ -2528,8 +2530,8 @@ void R_StoreWallRange (int start, int stop)
*swal++ = swall[i];
}
double istart = *((fixed_t *)(openings + ds_p->swall)) * yscale / (1 << 18);
double iend = *(swal - 1) * yscale / (1 << 18);
double istart = *((float *)(openings + ds_p->swall)) * yscale;
double iend = *(swal - 1) * yscale;
#if 0
///This was for avoiding overflow when using fixed point. It might not be needed anymore.
const double mini = 3 / 65536.0;
@ -2965,7 +2967,7 @@ static void PrepWallRoundFix(fixed_t *lwall, fixed_t walxrepeat, int x1, int x2)
}
}
void PrepWall (fixed_t *swall, fixed_t *lwall, double walxrepeat, int x1, int x2)
void PrepWall (float *swall, fixed_t *lwall, double walxrepeat, int x1, int x2)
{ // swall = scale, lwall = texturecolumn
double top, bot, i;
double xrepeat = fabs(walxrepeat * 65536);
@ -2987,7 +2989,7 @@ void PrepWall (fixed_t *swall, fixed_t *lwall, double walxrepeat, int x1, int x2
{
lwall[x] = xs_RoundToInt(frac * xrepeat);
}
swall[x] = xs_RoundToInt(frac * depth_scale + depth_org);
swall[x] = float(frac * depth_scale + depth_org);
top += WallT.UoverZstep;
bot += WallT.InvZstep;
}
@ -3235,9 +3237,7 @@ static void R_RenderDecal (side_t *wall, DBaseDecal *decal, drawseg_t *clipper,
sprflipvert = false;
}
// rw_offset is used as the texture's vertical scale
rw_offset = FLOAT2FIXED(1 / yscale);
MaskedScaleY = float(1 / yscale);
do
{
dc_x = x1;

4
src/r_segs.h
View File

@ -33,7 +33,7 @@ extern size_t maxopenings;
int OWallMost (short *mostbuf, double z, const FWallCoords *wallc);
int WallMost (short *mostbuf, const secplane_t &plane, const FWallCoords *wallc);
void PrepWall (fixed_t *swall, fixed_t *lwall, double walxrepeat, int x1, int x2);
void PrepWall (float *swall, fixed_t *lwall, double walxrepeat, int x1, int x2);
void PrepLWall (fixed_t *lwall, double walxrepeat, int x1, int x2);
ptrdiff_t R_NewOpening (ptrdiff_t len);
@ -42,7 +42,7 @@ void R_CheckDrawSegs ();
void R_RenderSegLoop ();
extern fixed_t swall[MAXWIDTH];
extern float swall[MAXWIDTH];
extern fixed_t lwall[MAXWIDTH];
extern float rw_light; // [RH] Scale lights with viewsize adjustments
extern float rw_lightstep;

21
src/r_sky.cpp
View File

@ -41,8 +41,8 @@
FTextureID skyflatnum;
FTextureID sky1texture, sky2texture;
double skytexturemid;
fixed_t skyscale;
fixed_t skyiscale;
double skyscale;
float skyiscale;
bool skystretch;
fixed_t sky1cyl, sky2cyl;
@ -54,7 +54,7 @@ CUSTOM_CVAR (Bool, r_stretchsky, true, CVAR_ARCHIVE)
R_InitSkyMap ();
}
fixed_t freelookviewheight;
int freelookviewheight;
//==========================================================================
//
@ -112,19 +112,18 @@ void R_InitSkyMap ()
if (viewwidth != 0 && viewheight != 0)
{
skyiscale = (r_Yaspect*FRACUNIT) / ((freelookviewheight * viewwidth) / viewwidth);
skyscale = (((freelookviewheight * viewwidth) / viewwidth) << FRACBITS) /
(r_Yaspect);
skyiscale = float(r_Yaspect / freelookviewheight);
skyscale = freelookviewheight / r_Yaspect;
skyiscale = Scale (skyiscale, FieldOfView, 2048);
skyscale = Scale (skyscale, 2048, FieldOfView);
skyiscale *= FieldOfView / 2048.f;
skyscale *= 2048.0 / FieldOfView;
}
if (skystretch)
{
skyscale = Scale(skyscale, SKYSTRETCH_HEIGHT, skyheight);
skyiscale = Scale(skyiscale, skyheight, SKYSTRETCH_HEIGHT);
skytexturemid = skytexturemid * skyheight / SKYSTRETCH_HEIGHT;
skyscale *= (double)SKYSTRETCH_HEIGHT / skyheight;
skyiscale *= skyheight / (float)SKYSTRETCH_HEIGHT;
skytexturemid *= skyheight / (double)SKYSTRETCH_HEIGHT;
}
// The standard Doom sky texture is 256 pixels wide, repeated 4 times over 360 degrees,

6
src/r_sky.h
View File

@ -30,10 +30,10 @@ extern fixed_t sky1cyl, sky2cyl;
extern FTextureID sky1texture, sky2texture;
extern double sky1pos, sky2pos;
extern double skytexturemid;
extern fixed_t skyiscale;
extern fixed_t skyscale;
extern float skyiscale;
extern double skyscale;
extern bool skystretch;
extern fixed_t freelookviewheight;
extern int freelookviewheight;
#define SKYSTRETCH_HEIGHT 228

10
src/r_things.cpp
View File

@ -89,7 +89,7 @@ struct FCoverageBuffer
};
extern double globaluclip, globaldclip;
extern float MaskedScaleY;
#define MINZ double((2048*4) / double(1 << 20))
#define BASEYCENTER (100)
@ -558,8 +558,7 @@ void R_DrawWallSprite(vissprite_t *spr)
sprflipvert = false;
}
// rw_offset is used as the texture's vertical scale
rw_offset = xs_Fix<30>::ToFix(iyscale);
MaskedScaleY = (float)iyscale;
dc_x = x1;
ESPSResult mode;
@ -632,8 +631,9 @@ void R_DrawWallSprite(vissprite_t *spr)
void R_WallSpriteColumn (void (*drawfunc)(const BYTE *column, const FTexture::Span *spans))
{
dc_iscale = MulScale16 (swall[dc_x], rw_offset/4);
spryscale = 65536.0 / dc_iscale;
float iscale = swall[dc_x] * MaskedScaleY;
dc_iscale = FLOAT2FIXED(iscale);
spryscale = 1 / iscale;
if (sprflipvert)
sprtopscreen = CenterY + dc_texturemid * spryscale;
else

2
src/r_utility.h
View File

@ -39,7 +39,7 @@ extern DWORD r_FrameTime;
extern int extralight;
extern unsigned int R_OldBlend;
const int r_Yaspect = 200; // Why did I make this a variable? It's never set anywhere.
const double r_Yaspect = 200.0; // Why did I make this a variable? It's never set anywhere.
//==========================================================================
//