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https://github.com/ZDoom/gzdoom-gles.git
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52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
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//
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// Copyright (C) 1993-1996 by id Software, Inc.
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//
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// This source is available for distribution and/or modification
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// only under the terms of the DOOM Source Code License as
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// published by id Software. All rights reserved.
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//
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// The source is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
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// for more details.
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//
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#pragma once
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#include <stddef.h>
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#include "r_defs.h"
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struct FSectorPortal;
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namespace swrenderer
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{
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struct visplane_t;
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class VisiblePlaneList
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{
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public:
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static VisiblePlaneList *Instance();
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void Init();
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void Deinit();
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void Clear(bool fullclear);
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visplane_t *FindPlane(const secplane_t &height, FTextureID picnum, int lightlevel, double Alpha, bool additive, const FTransform &xxform, int sky, FSectorPortal *portal);
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visplane_t *GetRange(visplane_t *pl, int start, int stop);
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int Render();
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void RenderHeight(double height);
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enum { MAXVISPLANES = 128 }; // must be a power of 2
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visplane_t *visplanes[MAXVISPLANES + 1];
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visplane_t *freetail = nullptr;
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visplane_t **freehead = nullptr;
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private:
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VisiblePlaneList();
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visplane_t *Add(unsigned hash);
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static unsigned CalcHash(int picnum, int lightlevel, const secplane_t &height) { return (unsigned)((picnum) * 3 + (lightlevel)+(FLOAT2FIXED((height).fD())) * 7) & (MAXVISPLANES - 1); }
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};
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}
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