void FGLRenderer::FillSimplePoly(FTexture *texture, FVector2 *points, int npoints,
double originx, double originy, double scalex, double scaley,
angle_t rotation, FDynamicColormap *colormap, int lightlevel)
{
if (npoints < 3)
{ // This is no polygon.
return;
}
FMaterial *gltexture = FMaterial::ValidateTexture(texture);
if (gltexture == NULL)
{
return;
}
FColormap cm;
cm = colormap;
lightlevel = gl_CalcLightLevel(lightlevel, 0, true);
PalEntry pe = gl_CalcLightColor(lightlevel, cm.LightColor, cm.blendfactor, true);
glColor3ub(pe.r, pe.g, pe.b);
gltexture->Bind(cm.colormap);
int i;
float rot = float(rotation * M_PI / float(1u << 31));
bool dorotate = rot != 0;
float cosrot = cos(rot);
float sinrot = sin(rot);
//float yoffs = GatheringWipeScreen ? 0 : LBOffset;
float uscale = float(1.f / (texture->GetScaledWidth() * scalex));
float vscale = float(1.f / (texture->GetScaledHeight() * scaley));
if (gltexture->tex->bHasCanvas)
{
vscale = 0 - vscale;
}
float ox = float(originx);
float oy = float(originy);
gl_RenderState.Apply();
glBegin(GL_TRIANGLE_FAN);
for (i = 0; i < npoints; ++i)
{
float u = points[i].X - 0.5f - ox;
float v = points[i].Y - 0.5f - oy;
if (dorotate)
{
float t = u;
u = t * cosrot - v * sinrot;
v = v * cosrot + t * sinrot;
}
glTexCoord2f(u * uscale, v * vscale);
glVertex3f(points[i].X, points[i].Y /* + yoffs */, 0);
}
glEnd();
}
static int gl_SetSpriteLight(AActor *self, fixed_t x, fixed_t y, fixed_t z, subsector_t * subsec,
int lightlevel, int rellight, FColormap * cm, float alpha,
PalEntry ThingColor, bool weapon)
{
float r,g,b;
float result[4]; // Korshun.
gl_GetLightColor(lightlevel, rellight, cm, &r, &g, &b, weapon);
bool res = gl_GetSpriteLight(self, x, y, z, subsec, cm? cm->colormap : 0, result);
if (!res || glset.lightmode == 8)
{
r *= ThingColor.r/255.f;
g *= ThingColor.g/255.f;
b *= ThingColor.b/255.f;
glColor4f(r, g, b, alpha);
if (glset.lightmode == 8)
{
glVertexAttrib1f(VATTR_LIGHTLEVEL, gl_CalcLightLevel(lightlevel, rellight, weapon) / 255.0f); // Korshun.
gl_RenderState.SetDynLight(result[0], result[1], result[2]);
}
return lightlevel;
}
else
{
// Note: Due to subtractive lights the values can easily become negative so we have to clamp both
// at the low and top end of the range!
r = clamp<float>(result[0]+r, 0, 1.0f);
g = clamp<float>(result[1]+g, 0, 1.0f);
b = clamp<float>(result[2]+b, 0, 1.0f);
float dlightlevel = r*77 + g*143 + b*35;
r *= ThingColor.r/255.f;
g *= ThingColor.g/255.f;
b *= ThingColor.b/255.f;
glColor4f(r, g, b, alpha);
if (dlightlevel == 0) return 0;
if (glset.lightmode&2 && dlightlevel<192.f)
{
return xs_CRoundToInt(192.f - (192.f - dlightlevel) / 1.95f);
}
else
{
return xs_CRoundToInt(dlightlevel);
}
}
}
//==========================================================================
//
//
//
//==========================================================================
void GLWall::DrawDecal(DBaseDecal *decal)
{
line_t * line=seg->linedef;
side_t * side=seg->sidedef;
int i;
fixed_t zpos;
int light;
int rel;
float a;
bool flipx, flipy, loadAlpha;
DecalVertex dv[4];
FTextureID decalTile;
if (decal->RenderFlags & RF_INVISIBLE) return;
if (type==RENDERWALL_FFBLOCK && gltexture->isMasked()) return; // No decals on 3D floors with transparent textures.
//if (decal->sprite != 0xffff)
{
decalTile = decal->PicNum;
flipx = !!(decal->RenderFlags & RF_XFLIP);
flipy = !!(decal->RenderFlags & RF_YFLIP);
}
/*
else
{
decalTile = SpriteFrames[sprites[decal->sprite].spriteframes + decal->frame].lump[0];
flipx = SpriteFrames[sprites[decal->sprite].spriteframes + decal->frame].flip & 1;
}
*/
FTexture *texture = TexMan[decalTile];
if (texture == NULL) return;
FMaterial *tex;
if (texture->UseType == FTexture::TEX_MiscPatch)
{
// We need to create a clone of this texture where we can force the
// texture filtering offset in.
if (texture->gl_info.DecalTexture == NULL)
{
texture->gl_info.DecalTexture = new FCloneTexture(texture, FTexture::TEX_Decal);
}
tex = FMaterial::ValidateTexture(texture->gl_info.DecalTexture);
}
else tex = FMaterial::ValidateTexture(texture);
// the sectors are only used for their texture origin coordinates
// so we don't need the fake sectors for deep water etc.
// As this is a completely split wall fragment no further splits are
// necessary for the decal.
sector_t *frontsector;
// for 3d-floor segments use the model sector as reference
if ((decal->RenderFlags&RF_CLIPMASK)==RF_CLIPMID) frontsector=decal->Sector;
else frontsector=seg->frontsector;
switch (decal->RenderFlags & RF_RELMASK)
{
default:
// No valid decal can have this type. If one is encountered anyway
// it is in some way invalid so skip it.
return;
//zpos = decal->z;
//break;
case RF_RELUPPER:
if (type!=RENDERWALL_TOP) return;
if (line->flags & ML_DONTPEGTOP)
{
zpos = decal->Z + frontsector->GetPlaneTexZ(sector_t::ceiling);
}
else
{
zpos = decal->Z + seg->backsector->GetPlaneTexZ(sector_t::ceiling);
}
break;
case RF_RELLOWER:
if (type!=RENDERWALL_BOTTOM) return;
if (line->flags & ML_DONTPEGBOTTOM)
{
zpos = decal->Z + frontsector->GetPlaneTexZ(sector_t::ceiling);
}
else
{
zpos = decal->Z + seg->backsector->GetPlaneTexZ(sector_t::floor);
}
break;
case RF_RELMID:
if (type==RENDERWALL_TOP || type==RENDERWALL_BOTTOM) return;
if (line->flags & ML_DONTPEGBOTTOM)
{
zpos = decal->Z + frontsector->GetPlaneTexZ(sector_t::floor);
}
else
{
zpos = decal->Z + frontsector->GetPlaneTexZ(sector_t::ceiling);
}
}
if (decal->RenderFlags & RF_FULLBRIGHT)
{
light = 255;
rel = 0;
}
else
{
light = lightlevel;
rel = rellight + getExtraLight();
}
int r = RPART(decal->AlphaColor);
int g = GPART(decal->AlphaColor);
int b = BPART(decal->AlphaColor);
FColormap p = Colormap;
if (glset.nocoloredspritelighting)
{
int v = (Colormap.LightColor.r * 77 + Colormap.LightColor.g*143 + Colormap.LightColor.b*35)/255;
p.LightColor = PalEntry(p.colormap, v, v, v);
}
float red, green, blue;
if (decal->RenderStyle.Flags & STYLEF_RedIsAlpha)
{
loadAlpha = true;
p.colormap=CM_SHADE;
if (glset.lightmode != 8)
{
gl_GetLightColor(light, rel, &p, &red, &green, &blue);
}
else
{
gl_GetLightColor(lightlevel, rellight, &p, &red, &green, &blue);
}
if (gl_lights && GLRenderer->mLightCount && !gl_fixedcolormap && gl_light_sprites)
{
float result[3];
fixed_t x, y;
decal->GetXY(seg->sidedef, x, y);
gl_GetSpriteLight(NULL, x, y, zpos, sub, Colormap.colormap-CM_DESAT0, result, line, side == line->sidedef[0]? 0:1);
if (glset.lightmode != 8)
{
red = clamp<float>(result[0]+red, 0, 1.0f);
green = clamp<float>(result[1]+green, 0, 1.0f);
blue = clamp<float>(result[2]+blue, 0, 1.0f);
}
else
{
gl_RenderState.SetDynLight(result[0], result[1], result[2]);
}
}
BYTE R = xs_RoundToInt(r * red);
BYTE G = xs_RoundToInt(g * green);
BYTE B = xs_RoundToInt(b * blue);
gl_ModifyColor(R,G,B, Colormap.colormap);
red = R/255.f;
green = G/255.f;
blue = B/255.f;
}
else
{
loadAlpha = false;
red = 1.f;
green = 1.f;
blue = 1.f;
}
a = FIXED2FLOAT(decal->Alpha);
// now clip the decal to the actual polygon
float decalwidth = tex->TextureWidth(GLUSE_PATCH) * FIXED2FLOAT(decal->ScaleX);
float decalheight= tex->TextureHeight(GLUSE_PATCH) * FIXED2FLOAT(decal->ScaleY);
float decallefto = tex->GetLeftOffset(GLUSE_PATCH) * FIXED2FLOAT(decal->ScaleX);
float decaltopo = tex->GetTopOffset(GLUSE_PATCH) * FIXED2FLOAT(decal->ScaleY);
float leftedge = glseg.fracleft * side->TexelLength;
float linelength = glseg.fracright * side->TexelLength - leftedge;
// texel index of the decal's left edge
float decalpixpos = (float)side->TexelLength * decal->LeftDistance / (1<<30) - (flipx? decalwidth-decallefto : decallefto) - leftedge;
float left,right;
float lefttex,righttex;
// decal is off the left edge
if (decalpixpos < 0)
{
left = 0;
lefttex = -decalpixpos;
}
else
{
left = decalpixpos;
lefttex = 0;
}
// decal is off the right edge
if (decalpixpos + decalwidth > linelength)
{
right = linelength;
righttex = right - decalpixpos;
}
else
{
right = decalpixpos + decalwidth;
righttex = decalwidth;
}
if (right<=left) return; // nothing to draw
// one texture unit on the wall as vector
float vx=(glseg.x2-glseg.x1)/linelength;
float vy=(glseg.y2-glseg.y1)/linelength;
dv[1].x=dv[0].x=glseg.x1+vx*left;
dv[1].y=dv[0].y=glseg.y1+vy*left;
dv[3].x=dv[2].x=glseg.x1+vx*right;
dv[3].y=dv[2].y=glseg.y1+vy*right;
zpos+= FRACUNIT*(flipy? decalheight-decaltopo : decaltopo);
tex->BindPatch(p.colormap, decal->Translation);
dv[1].z=dv[2].z = FIXED2FLOAT(zpos);
dv[0].z=dv[3].z = dv[1].z - decalheight;
dv[1].v=dv[2].v = tex->GetVT();
dv[1].u=dv[0].u = tex->GetU(lefttex / FIXED2FLOAT(decal->ScaleX));
dv[3].u=dv[2].u = tex->GetU(righttex / FIXED2FLOAT(decal->ScaleX));
dv[0].v=dv[3].v = tex->GetVB();
// now clip to the top plane
float vzt=(ztop[1]-ztop[0])/linelength;
float topleft=this->ztop[0]+vzt*left;
float topright=this->ztop[0]+vzt*right;
// completely below the wall
if (topleft<dv[0].z && topright<dv[3].z)
return;
if (topleft<dv[1].z || topright<dv[2].z)
{
// decal has to be clipped at the top
// let texture clamping handle all extreme cases
dv[1].v=(dv[1].z-topleft)/(dv[1].z-dv[0].z)*dv[0].v;
dv[2].v=(dv[2].z-topright)/(dv[2].z-dv[3].z)*dv[3].v;
dv[1].z=topleft;
dv[2].z=topright;
}
// now clip to the bottom plane
float vzb=(zbottom[1]-zbottom[0])/linelength;
float bottomleft=this->zbottom[0]+vzb*left;
float bottomright=this->zbottom[0]+vzb*right;
// completely above the wall
if (bottomleft>dv[1].z && bottomright>dv[2].z)
return;
if (bottomleft>dv[0].z || bottomright>dv[3].z)
{
// decal has to be clipped at the bottom
// let texture clamping handle all extreme cases
dv[0].v=(dv[1].z-bottomleft)/(dv[1].z-dv[0].z)*(dv[0].v-dv[1].v) + dv[1].v;
dv[3].v=(dv[2].z-bottomright)/(dv[2].z-dv[3].z)*(dv[3].v-dv[2].v) + dv[2].v;
dv[0].z=bottomleft;
dv[3].z=bottomright;
}
if (flipx)
{
float ur = tex->GetUR();
for(i=0;i<4;i++) dv[i].u=ur-dv[i].u;
}
if (flipy)
{
float vb = tex->GetVB();
for(i=0;i<4;i++) dv[i].v=vb-dv[i].v;
}
// fog is set once per wall in the calling function and not per decal!
if (loadAlpha)
{
glColor4f(red, green, blue, a);
if (glset.lightmode == 8)
{
if (gl_fixedcolormap)
glVertexAttrib1f(VATTR_LIGHTLEVEL, 1.0);
else
glVertexAttrib1f(VATTR_LIGHTLEVEL, gl_CalcLightLevel(light, rel, false) / 255.0);
}
}
else
{
if (glset.lightmode == 8)
{
gl_SetColor(light, rel, &p, a, extralight); // Korshun.
}
else
{
gl_SetColor(light, rel, &p, a);
}
}
PalEntry fc = gl_RenderState.GetFogColor();
if (decal->RenderStyle.BlendOp == STYLEOP_Add && decal->RenderStyle.DestAlpha == STYLEALPHA_One)
{
gl_RenderState.SetFog(0,-1);
}
gl_SetRenderStyle(decal->RenderStyle, false, false);
// If srcalpha is one it looks better with a higher alpha threshold
if (decal->RenderStyle.SrcAlpha == STYLEALPHA_One) gl_RenderState.AlphaFunc(GL_GEQUAL, gl_mask_threshold);
else gl_RenderState.AlphaFunc(GL_GREATER, 0.f);
gl_RenderState.Apply();
glBegin(GL_TRIANGLE_FAN);
for(i=0;i<4;i++)
{
glTexCoord2f(dv[i].u,dv[i].v);
glVertex3f(dv[i].x,dv[i].z,dv[i].y);
}
glEnd();
rendered_decals++;
gl_RenderState.SetFog(fc,-1);
gl_RenderState.SetDynLight(0,0,0);
}
void FGLRenderer::DrawPlayerSprites(sector_t * viewsector, bool hudModelStep)
{
bool brightflash = false;
unsigned int i;
int lightlevel=0;
FColormap cm;
sector_t * fakesec, fs;
AActor * playermo=players[consoleplayer].camera;
player_t * player=playermo->player;
// this is the same as the software renderer
if (!player ||
!r_drawplayersprites ||
!camera->player ||
(player->cheats & CF_CHASECAM) ||
(r_deathcamera && camera->health <= 0))
return;
float bobx, boby, wx, wy;
DPSprite *weapon;
P_BobWeapon(camera->player, &bobx, &boby, r_TicFracF);
// Interpolate the main weapon layer once so as to be able to add it to other layers.
if ((weapon = camera->player->FindPSprite(PSP_WEAPON)) != nullptr)
{
if (weapon->firstTic)
{
wx = weapon->x;
wy = weapon->y;
}
else
{
wx = weapon->oldx + (weapon->x - weapon->oldx) * r_TicFracF;
wy = weapon->oldy + (weapon->y - weapon->oldy) * r_TicFracF;
}
}
else
{
wx = 0;
wy = 0;
}
if (gl_fixedcolormap)
{
lightlevel=255;
cm.Clear();
fakesec = viewsector;
}
else
{
fakesec = gl_FakeFlat(viewsector, &fs, false);
// calculate light level for weapon sprites
lightlevel = gl_ClampLight(fakesec->lightlevel);
// calculate colormap for weapon sprites
if (viewsector->e->XFloor.ffloors.Size() && !glset.nocoloredspritelighting)
{
TArray<lightlist_t> & lightlist = viewsector->e->XFloor.lightlist;
for(i=0;i<lightlist.Size();i++)
{
double lightbottom;
if (i<lightlist.Size()-1)
{
lightbottom=lightlist[i+1].plane.ZatPoint(ViewPos);
}
else
{
lightbottom=viewsector->floorplane.ZatPoint(ViewPos);
}
if (lightbottom<player->viewz)
{
cm = lightlist[i].extra_colormap;
lightlevel = gl_ClampLight(*lightlist[i].p_lightlevel);
break;
}
}
}
else
{
cm=fakesec->ColorMap;
if (glset.nocoloredspritelighting) cm.ClearColor();
}
lightlevel = gl_CalcLightLevel(lightlevel, getExtraLight(), true);
if (glset.lightmode == 8)
{
// Korshun: the way based on max possible light level for sector like in software renderer.
float min_L = 36.0 / 31.0 - ((lightlevel / 255.0) * (63.0 / 31.0)); // Lightlevel in range 0-63
if (min_L < 0)
min_L = 0;
else if (min_L > 1.0)
min_L = 1.0;
lightlevel = (1.0 - min_L) * 255;
}
else
{
lightlevel = (2 * lightlevel + 255) / 3;
}
lightlevel = gl_CheckSpriteGlow(viewsector, lightlevel, playermo->Pos());
}
// Korshun: fullbright fog in opengl, render weapon sprites fullbright (but don't cancel out the light color!)
if (glset.brightfog && ((level.flags&LEVEL_HASFADETABLE) || cm.FadeColor != 0))
{
lightlevel = 255;
}
PalEntry ThingColor = (playermo->RenderStyle.Flags & STYLEF_ColorIsFixed) ? playermo->fillcolor : 0xffffff;
ThingColor.a = 255;
visstyle_t vis;
vis.RenderStyle=playermo->RenderStyle;
vis.Alpha=playermo->Alpha;
vis.colormap = NULL;
if (playermo->Inventory)
{
playermo->Inventory->AlterWeaponSprite(&vis);
if (vis.colormap >= SpecialColormaps[0].Colormap &&
vis.colormap < SpecialColormaps[SpecialColormaps.Size()].Colormap &&
gl_fixedcolormap == CM_DEFAULT)
{
// this only happens for Strife's inverted weapon sprite
vis.RenderStyle.Flags |= STYLEF_InvertSource;
}
}
// Set the render parameters
int OverrideShader = -1;
float trans = 0.f;
if (vis.RenderStyle.BlendOp >= STYLEOP_Fuzz && vis.RenderStyle.BlendOp <= STYLEOP_FuzzOrRevSub)
{
vis.RenderStyle.CheckFuzz();
if (vis.RenderStyle.BlendOp == STYLEOP_Fuzz)
{
if (gl_fuzztype != 0)
{
// Todo: implement shader selection here
vis.RenderStyle = LegacyRenderStyles[STYLE_Translucent];
OverrideShader = gl_fuzztype + 4;
trans = 0.99f; // trans may not be 1 here
}
else
{
vis.RenderStyle.BlendOp = STYLEOP_Shadow;
}
}
}
gl_SetRenderStyle(vis.RenderStyle, false, false);
if (vis.RenderStyle.Flags & STYLEF_TransSoulsAlpha)
{
trans = transsouls;
}
else if (vis.RenderStyle.Flags & STYLEF_Alpha1)
{
trans = 1.f;
}
else if (trans == 0.f)
{
trans = vis.Alpha;
}
// now draw the different layers of the weapon
gl_RenderState.EnableBrightmap(true);
gl_RenderState.SetObjectColor(ThingColor);
gl_RenderState.BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
gl_RenderState.AlphaFunc(GL_GEQUAL, gl_mask_sprite_threshold);
gl_RenderState.BlendEquation(GL_FUNC_ADD);
// hack alert! Rather than changing everything in the underlying lighting code let's just temporarily change
// light mode here to draw the weapon sprite.
int oldlightmode = glset.lightmode;
if (glset.lightmode == 8) glset.lightmode = 2;
for(DPSprite *psp = player->psprites; psp != nullptr && psp->GetID() < PSP_TARGETCENTER; psp = psp->GetNext())
{
if (psp->GetState() != nullptr)
{
FColormap cmc = cm;
int ll = lightlevel;
if (isBright(psp))
{
if (fakesec == viewsector || in_area != area_below)
{
cmc.LightColor.r=
cmc.LightColor.g=
cmc.LightColor.b=0xff;
}
else
{
// under water areas keep most of their color for fullbright objects
cmc.LightColor.r = (3 * cmc.LightColor.r + 0xff) / 4;
cmc.LightColor.g = (3*cmc.LightColor.g + 0xff)/4;
cmc.LightColor.b = (3*cmc.LightColor.b + 0xff)/4;
}
ll = 255;
}
// set the lighting parameters
if (vis.RenderStyle.BlendOp == STYLEOP_Shadow)
{
gl_RenderState.SetColor(0.2f, 0.2f, 0.2f, 0.33f, cmc.desaturation);
}
else
{
if (gl_lights && GLRenderer->mLightCount && !gl_fixedcolormap && gl_light_sprites)
{
gl_SetDynSpriteLight(playermo, NULL);
}
gl_SetColor(ll, 0, cmc, trans, true);
}
if (psp->firstTic)
{ // Can't interpolate the first tic.
psp->firstTic = false;
psp->oldx = psp->x;
psp->oldy = psp->y;
}
float sx = psp->oldx + (psp->x - psp->oldx) * r_TicFracF;
float sy = psp->oldy + (psp->y - psp->oldy) * r_TicFracF;
if (psp->Flags & PSPF_ADDBOB)
{
sx += bobx;
sy += boby;
}
if (psp->Flags & PSPF_ADDWEAPON && psp->GetID() != PSP_WEAPON)
{
sx += wx;
sy += wy;
}
DrawPSprite(player, psp, sx, sy, hudModelStep, OverrideShader, !!(vis.RenderStyle.Flags & STYLEF_RedIsAlpha));
}
}
gl_RenderState.SetObjectColor(0xffffffff);
gl_RenderState.SetDynLight(0, 0, 0);
gl_RenderState.EnableBrightmap(false);
glset.lightmode = oldlightmode;
}
