mirror of
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395 lines
10 KiB
C++
395 lines
10 KiB
C++
#ifndef __GL_WALL_H
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#define __GL_WALL_H
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//==========================================================================
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//
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// One wall segment in the draw list
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//
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//==========================================================================
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#include "r_defs.h"
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#include "textures/textures.h"
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#include "gl/renderer/gl_colormap.h"
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struct GLHorizonInfo;
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struct F3DFloor;
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struct model_t;
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struct FSpriteModelFrame;
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struct particle_t;
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class ADynamicLight;
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class FMaterial;
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struct GLDrawList;
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struct GLSkyInfo;
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struct FTexCoordInfo;
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struct FPortal;
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struct FFlatVertex;
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struct FGLLinePortal;
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enum
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{
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GLSector_NoSkyDraw = 89,
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GLSector_Skybox = 90,
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};
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enum WallTypes
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{
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RENDERWALL_NONE,
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RENDERWALL_TOP,
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RENDERWALL_M1S,
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RENDERWALL_M2S,
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RENDERWALL_BOTTOM,
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RENDERWALL_FOGBOUNDARY,
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RENDERWALL_MIRRORSURFACE,
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RENDERWALL_M2SNF,
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RENDERWALL_COLOR,
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RENDERWALL_FFBLOCK,
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// Insert new types at the end!
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};
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enum PortalTypes
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{
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PORTALTYPE_SKY,
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PORTALTYPE_HORIZON,
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PORTALTYPE_SKYBOX,
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PORTALTYPE_SECTORSTACK,
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PORTALTYPE_PLANEMIRROR,
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PORTALTYPE_MIRROR,
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PORTALTYPE_LINETOLINE,
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};
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struct GLSeg
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{
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float x1,x2;
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float y1,y2;
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float fracleft, fracright; // fractional offset of the 2 vertices on the linedef
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};
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struct texcoord
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{
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float u,v;
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};
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//==========================================================================
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//
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// One sector plane, still in fixed point
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//
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//==========================================================================
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struct GLSectorPlane
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{
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FTextureID texture;
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secplane_t plane;
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float Texheight;
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float Angle;
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FVector2 Offs;
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FVector2 Scale;
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void GetFromSector(sector_t * sec, int ceiling)
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{
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Offs.X = (float)sec->GetXOffset(ceiling);
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Offs.Y = (float)sec->GetYOffset(ceiling);
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Scale.X = (float)sec->GetXScale(ceiling);
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Scale.Y = (float)sec->GetYScale(ceiling);
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Angle = (float)sec->GetAngle(ceiling).Degrees;
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texture = sec->GetTexture(ceiling);
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plane = sec->GetSecPlane(ceiling);
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Texheight = (float)((ceiling == sector_t::ceiling)? plane.fD() : -plane.fD());
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}
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};
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class GLWall
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{
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public:
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enum
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{
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//GLWF_CLAMPX=1, use GLT_* for these!
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//GLWF_CLAMPY=2,
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GLWF_SKYHACK=4,
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GLWF_GLOW=8, // illuminated by glowing flats
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GLWF_NOSPLITUPPER=16,
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GLWF_NOSPLITLOWER=32,
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GLWF_NOSPLIT=64,
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};
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enum
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{
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RWF_BLANK = 0,
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RWF_TEXTURED = 1, // actually not being used anymore because with buffers it's even less efficient not writing the texture coordinates - but leave it here
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RWF_NOSPLIT = 4,
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RWF_NORENDER = 8,
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};
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enum
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{
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LOLFT,
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UPLFT,
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UPRGT,
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LORGT,
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};
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friend struct GLDrawList;
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friend class GLPortal;
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GLSeg glseg;
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vertex_t * vertexes[2]; // required for polygon splitting
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float ztop[2],zbottom[2];
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texcoord tcs[4];
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float alpha;
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FMaterial *gltexture;
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FColormap Colormap;
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ERenderStyle RenderStyle;
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float ViewDistance;
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TArray<lightlist_t> *lightlist;
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int lightlevel;
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BYTE type;
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BYTE flags;
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short rellight;
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float topglowcolor[4];
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float bottomglowcolor[4];
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int dynlightindex;
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union
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{
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// it's either one of them but never more!
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FSectorPortal *secportal; // sector portal (formerly skybox)
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GLSkyInfo * sky; // for normal sky
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GLHorizonInfo * horizon; // for horizon information
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FPortal * portal; // stacked sector portals
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secplane_t * planemirror; // for plane mirrors
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FGLLinePortal *lineportal; // line-to-line portals
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};
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FTextureID topflat,bottomflat;
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secplane_t topplane, bottomplane; // we need to save these to pass them to the shader for calculating glows.
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// these are not the same as ytop and ybottom!!!
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float zceil[2];
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float zfloor[2];
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public:
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seg_t * seg; // this gives the easiest access to all other structs involved
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subsector_t * sub; // For polyobjects
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private:
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void CheckGlowing();
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bool PutWallCompat(int passflag);
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void PutWall(bool translucent);
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void PutPortal(int ptype);
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void CheckTexturePosition();
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void RenderFogBoundaryCompat();
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void RenderLightsCompat(int pass);
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void Put3DWall(lightlist_t * lightlist, bool translucent);
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void SplitWallComplex(sector_t * frontsector, bool translucent, float maplightbottomleft, float maplightbottomright);
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void SplitWall(sector_t * frontsector, bool translucent);
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void SetupLights();
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bool PrepareLight(ADynamicLight * light, int pass);
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void RenderWall(int textured, unsigned int *store = NULL);
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void RenderTextured(int rflags);
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void FloodPlane(int pass);
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void SkyPlane(sector_t *sector, int plane, bool allowmirror);
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void SkyLine(sector_t *sec, line_t *line);
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void SkyNormal(sector_t * fs,vertex_t * v1,vertex_t * v2);
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void SkyTop(seg_t * seg,sector_t * fs,sector_t * bs,vertex_t * v1,vertex_t * v2);
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void SkyBottom(seg_t * seg,sector_t * fs,sector_t * bs,vertex_t * v1,vertex_t * v2);
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void LightPass();
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void SetHorizon(vertex_t * ul, vertex_t * ur, vertex_t * ll, vertex_t * lr);
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bool DoHorizon(seg_t * seg,sector_t * fs, vertex_t * v1,vertex_t * v2);
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bool SetWallCoordinates(seg_t * seg, FTexCoordInfo *tci, float ceilingrefheight,
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float topleft, float topright, float bottomleft, float bottomright, float t_ofs);
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void DoTexture(int type,seg_t * seg,int peg,
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float ceilingrefheight, float floorrefheight,
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float CeilingHeightstart,float CeilingHeightend,
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float FloorHeightstart,float FloorHeightend,
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float v_offset);
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void DoMidTexture(seg_t * seg, bool drawfogboundary,
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sector_t * front, sector_t * back,
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sector_t * realfront, sector_t * realback,
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float fch1, float fch2, float ffh1, float ffh2,
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float bch1, float bch2, float bfh1, float bfh2);
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void GetPlanePos(F3DFloor::planeref * planeref, float & left, float & right);
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void BuildFFBlock(seg_t * seg, F3DFloor * rover,
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float ff_topleft, float ff_topright,
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float ff_bottomleft, float ff_bottomright);
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void InverseFloors(seg_t * seg, sector_t * frontsector,
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float topleft, float topright,
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float bottomleft, float bottomright);
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void ClipFFloors(seg_t * seg, F3DFloor * ffloor, sector_t * frontsector,
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float topleft, float topright,
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float bottomleft, float bottomright);
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void DoFFloorBlocks(seg_t * seg, sector_t * frontsector, sector_t * backsector,
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float fch1, float fch2, float ffh1, float ffh2,
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float bch1, float bch2, float bfh1, float bfh2);
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void DrawDecal(DBaseDecal *actor);
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void DoDrawDecals();
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void RenderFogBoundary();
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void RenderMirrorSurface();
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void RenderTranslucentWall();
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void SplitLeftEdge (FFlatVertex *&ptr);
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void SplitRightEdge(FFlatVertex *&ptr);
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void SplitUpperEdge(FFlatVertex *&ptr);
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void SplitLowerEdge(FFlatVertex *&ptr);
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public:
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void Process(seg_t *seg, sector_t *frontsector, sector_t *backsector);
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void ProcessLowerMiniseg(seg_t *seg, sector_t *frontsector, sector_t *backsector);
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void Draw(int pass);
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float PointOnSide(float x,float y)
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{
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return -((y-glseg.y1)*(glseg.x2-glseg.x1)-(x-glseg.x1)*(glseg.y2-glseg.y1));
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}
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// Lines start-end and fdiv must intersect.
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double CalcIntersectionVertex(GLWall * w2)
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{
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float ax = glseg.x1, ay=glseg.y1;
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float bx = glseg.x2, by=glseg.y2;
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float cx = w2->glseg.x1, cy=w2->glseg.y1;
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float dx = w2->glseg.x2, dy=w2->glseg.y2;
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return ((ay-cy)*(dx-cx)-(ax-cx)*(dy-cy)) / ((bx-ax)*(dy-cy)-(by-ay)*(dx-cx));
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}
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};
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//==========================================================================
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//
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// One flat plane in the draw list
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//
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//==========================================================================
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class GLFlat
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{
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public:
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friend struct GLDrawList;
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sector_t * sector;
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subsector_t * sub; // only used for translucent planes
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float dz; // z offset for rendering hacks
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float z; // the z position of the flat (only valid for non-sloped planes)
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FMaterial *gltexture;
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FColormap Colormap; // light and fog
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ERenderStyle renderstyle;
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float alpha;
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GLSectorPlane plane;
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int lightlevel;
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bool stack;
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bool ceiling;
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BYTE renderflags;
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int vboindex;
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//int vboheight;
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int dynlightindex;
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// compatibility fallback stuff.
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void DrawSubsectorLights(subsector_t * sub, int pass);
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void DrawLightsCompat(int pass);
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bool PutFlatCompat(bool fog);
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void SetupSubsectorLights(int pass, subsector_t * sub, int *dli = NULL);
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void DrawSubsector(subsector_t * sub);
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void DrawSkyboxSector(int pass, bool processlights);
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void DrawSubsectors(int pass, bool processlights, bool istrans);
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void ProcessLights(bool istrans);
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void PutFlat(bool fog = false);
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void Process(sector_t * model, int whichplane, bool notexture);
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void SetFrom3DFloor(F3DFloor *rover, bool top, bool underside);
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void ProcessSector(sector_t * frontsector);
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void Draw(int pass, bool trans);
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};
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//==========================================================================
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//
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// One sprite in the draw list
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//
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//==========================================================================
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class GLSprite
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{
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public:
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friend struct GLDrawList;
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friend void Mod_RenderModel(GLSprite * spr, model_t * mdl, int framenumber);
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int lightlevel;
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BYTE foglevel;
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BYTE hw_styleflags;
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bool fullbright;
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PalEntry ThingColor; // thing's own color
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FColormap Colormap;
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FSpriteModelFrame * modelframe;
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FRenderStyle RenderStyle;
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int OverrideShader;
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int translation;
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int index;
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int depth;
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float topclip;
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float bottomclip;
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float x,y,z; // needed for sorting!
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float ul,ur;
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float vt,vb;
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float x1,y1,z1;
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float x2,y2,z2;
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FMaterial *gltexture;
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float trans;
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AActor * actor;
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particle_t * particle;
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TArray<lightlist_t> *lightlist;
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void SplitSprite(sector_t * frontsector, bool translucent);
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void SetLowerParam();
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void PerformSpriteClipAdjustment(AActor *thing, const DVector2 &thingpos, float spriteheight);
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public:
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void Draw(int pass);
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void PutSprite(bool translucent);
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void Process(AActor* thing,sector_t * sector, int thruportal = false);
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void ProcessParticle (particle_t *particle, sector_t *sector);//, int shade, int fakeside)
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void SetThingColor(PalEntry);
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// Lines start-end and fdiv must intersect.
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double CalcIntersectionVertex(GLWall * w2);
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};
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inline float Dist2(float x1,float y1,float x2,float y2)
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{
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return sqrtf((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2));
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}
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// Light + color
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void gl_SetDynSpriteLight(AActor *self, float x, float y, float z, subsector_t *subsec);
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void gl_SetDynSpriteLight(AActor *actor, particle_t *particle);
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void gl_RenderActorsInPortal(FGLLinePortal *glport);
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#endif
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