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Move fog boundary drawing to r_fogboundary

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This commit is contained in:
Magnus Norddahl 2016-12-31 12:04:23 +01:00
parent f354cc8c67
commit 2f96dcc1a8
6 changed files with 158 additions and 102 deletions
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1
src/CMakeLists.txt
View file

@ -834,6 +834,7 @@ set( FASTMATH_PCH_SOURCES
swrenderer/scene/r_skyplane.cpp
swrenderer/scene/r_flatplane.cpp
swrenderer/scene/r_slopeplane.cpp
swrenderer/scene/r_fogboundary.cpp
polyrenderer/poly_renderer.cpp
polyrenderer/scene/poly_scene.cpp
polyrenderer/scene/poly_portal.cpp

146
src/swrenderer/scene/r_fogboundary.cpp Normal file
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@ -0,0 +1,146 @@
#include <stdlib.h>
#include <float.h>
#include "templates.h"
#include "i_system.h"
#include "w_wad.h"
#include "doomdef.h"
#include "doomstat.h"
#include "swrenderer/r_main.h"
#include "swrenderer/scene/r_things.h"
#include "r_sky.h"
#include "stats.h"
#include "v_video.h"
#include "a_sharedglobal.h"
#include "c_console.h"
#include "cmdlib.h"
#include "d_net.h"
#include "g_level.h"
#include "r_bsp.h"
#include "r_fogboundary.h"
#include "r_segs.h"
#include "r_3dfloors.h"
#include "v_palette.h"
#include "r_data/colormaps.h"
#include "swrenderer/drawers/r_draw_rgba.h"
#include "gl/dynlights/gl_dynlight.h"
#include "r_walldraw.h"
#include "r_clip_segment.h"
#include "r_draw_segment.h"
#include "r_portal.h"
#include "r_plane.h"
#include "swrenderer/r_memory.h"
#ifdef _MSC_VER
#pragma warning(disable:4244)
#endif
namespace swrenderer
{
namespace
{
short spanend[MAXHEIGHT];
}
void R_DrawFogBoundary(int x1, int x2, short *uclip, short *dclip)
{
// This is essentially the same as R_MapVisPlane but with an extra step
// to create new horizontal spans whenever the light changes enough that
// we need to use a new colormap.
double lightstep = rw_lightstep;
double light = rw_light + rw_lightstep*(x2 - x1 - 1);
int x = x2 - 1;
int t2 = uclip[x];
int b2 = dclip[x];
int rcolormap = GETPALOOKUP(light, wallshade);
int lcolormap;
uint8_t *basecolormapdata = basecolormap->Maps;
if (b2 > t2)
{
fillshort(spanend + t2, b2 - t2, x);
}
R_SetColorMapLight(basecolormap, (float)light, wallshade);
uint8_t *fake_dc_colormap = basecolormap->Maps + (GETPALOOKUP(light, wallshade) << COLORMAPSHIFT);
for (--x; x >= x1; --x)
{
int t1 = uclip[x];
int b1 = dclip[x];
const int xr = x + 1;
int stop;
light -= rw_lightstep;
lcolormap = GETPALOOKUP(light, wallshade);
if (lcolormap != rcolormap)
{
if (t2 < b2 && rcolormap != 0)
{ // Colormap 0 is always the identity map, so rendering it is
// just a waste of time.
R_DrawFogBoundarySection(t2, b2, xr);
}
if (t1 < t2) t2 = t1;
if (b1 > b2) b2 = b1;
if (t2 < b2)
{
fillshort(spanend + t2, b2 - t2, x);
}
rcolormap = lcolormap;
R_SetColorMapLight(basecolormap, (float)light, wallshade);
fake_dc_colormap = basecolormap->Maps + (GETPALOOKUP(light, wallshade) << COLORMAPSHIFT);
}
else
{
if (fake_dc_colormap != basecolormapdata)
{
stop = MIN(t1, b2);
while (t2 < stop)
{
int y = t2++;
R_Drawers()->DrawFogBoundaryLine(y, xr, spanend[y]);
}
stop = MAX(b1, t2);
while (b2 > stop)
{
int y = --b2;
R_Drawers()->DrawFogBoundaryLine(y, xr, spanend[y]);
}
}
else
{
t2 = MAX(t2, MIN(t1, b2));
b2 = MIN(b2, MAX(b1, t2));
}
stop = MIN(t2, b1);
while (t1 < stop)
{
spanend[t1++] = x;
}
stop = MAX(b2, t2);
while (b1 > stop)
{
spanend[--b1] = x;
}
}
t2 = uclip[x];
b2 = dclip[x];
}
if (t2 < b2 && rcolormap != 0)
{
R_DrawFogBoundarySection(t2, b2, x1);
}
}
void R_DrawFogBoundarySection(int y, int y2, int x1)
{
for (; y < y2; ++y)
{
R_Drawers()->DrawFogBoundaryLine(y, x1, spanend[y]);
}
}
}

10
src/swrenderer/scene/r_fogboundary.h Normal file
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@ -0,0 +1,10 @@
#pragma once
#include "r_visible_plane.h"
namespace swrenderer
{
void R_DrawFogBoundary(int x1, int x2, short *uclip, short *dclip);
void R_DrawFogBoundarySection(int y, int y2, int x1);
}

100
src/swrenderer/scene/r_plane.cpp
View file

@ -115,109 +115,9 @@ short spanend[MAXHEIGHT];
void R_DrawSinglePlane (visplane_t *, fixed_t alpha, bool additive, bool masked);
void R_DrawFogBoundarySection(int y, int y2, int x1)
{
for (; y < y2; ++y)
{
R_Drawers()->DrawFogBoundaryLine(y, x1, spanend[y]);
}
}
//==========================================================================
void R_DrawFogBoundary(int x1, int x2, short *uclip, short *dclip)
{
// This is essentially the same as R_MapVisPlane but with an extra step
// to create new horizontal spans whenever the light changes enough that
// we need to use a new colormap.
double lightstep = rw_lightstep;
double light = rw_light + rw_lightstep*(x2 - x1 - 1);
int x = x2 - 1;
int t2 = uclip[x];
int b2 = dclip[x];
int rcolormap = GETPALOOKUP(light, wallshade);
int lcolormap;
uint8_t *basecolormapdata = basecolormap->Maps;
if (b2 > t2)
{
fillshort(spanend + t2, b2 - t2, x);
}
R_SetColorMapLight(basecolormap, (float)light, wallshade);
uint8_t *fake_dc_colormap = basecolormap->Maps + (GETPALOOKUP(light, wallshade) << COLORMAPSHIFT);
for (--x; x >= x1; --x)
{
int t1 = uclip[x];
int b1 = dclip[x];
const int xr = x + 1;
int stop;
light -= rw_lightstep;
lcolormap = GETPALOOKUP(light, wallshade);
if (lcolormap != rcolormap)
{
if (t2 < b2 && rcolormap != 0)
{ // Colormap 0 is always the identity map, so rendering it is
// just a waste of time.
R_DrawFogBoundarySection(t2, b2, xr);
}
if (t1 < t2) t2 = t1;
if (b1 > b2) b2 = b1;
if (t2 < b2)
{
fillshort(spanend + t2, b2 - t2, x);
}
rcolormap = lcolormap;
R_SetColorMapLight(basecolormap, (float)light, wallshade);
fake_dc_colormap = basecolormap->Maps + (GETPALOOKUP(light, wallshade) << COLORMAPSHIFT);
}
else
{
if (fake_dc_colormap != basecolormapdata)
{
stop = MIN(t1, b2);
while (t2 < stop)
{
int y = t2++;
R_Drawers()->DrawFogBoundaryLine(y, xr, spanend[y]);
}
stop = MAX(b1, t2);
while (b2 > stop)
{
int y = --b2;
R_Drawers()->DrawFogBoundaryLine(y, xr, spanend[y]);
}
}
else
{
t2 = MAX(t2, MIN(t1, b2));
b2 = MIN(b2, MAX(b1, t2));
}
stop = MIN(t2, b1);
while (t1 < stop)
{
spanend[t1++] = x;
}
stop = MAX(b2, t2);
while (b1 > stop)
{
spanend[--b1] = x;
}
}
t2 = uclip[x];
b2 = dclip[x];
}
if (t2 < b2 && rcolormap != 0)
{
R_DrawFogBoundarySection(t2, b2, x1);
}
}
//==========================================================================

2
src/swrenderer/scene/r_plane.h
View file

@ -44,8 +44,6 @@ int R_DrawPlanes ();
void R_DrawSinglePlane(visplane_t *pl, fixed_t alpha, bool additive, bool masked);
void R_MapVisPlane (visplane_t *pl, void (*mapfunc)(int y, int x1, int x2), void (*stepfunc)());
void R_DrawFogBoundary(int x1, int x2, short *uclip, short *dclip);
visplane_t *R_FindPlane(const secplane_t &height, FTextureID picnum, int lightlevel, double alpha, bool additive, const FTransform &xform, int sky, FSectorPortal *portal);
visplane_t *R_CheckPlane(visplane_t *pl, int start, int stop);

1
src/swrenderer/scene/r_segs.cpp
View file

@ -43,6 +43,7 @@
#include "g_level.h"
#include "r_bsp.h"
#include "r_plane.h"
#include "r_fogboundary.h"
#include "r_segs.h"
#include "r_3dfloors.h"
#include "swrenderer/drawers/r_draw.h"