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100 lines
2.5 KiB
C++
100 lines
2.5 KiB
C++
/*
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** Polygon Doom software renderer
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** Copyright (c) 2016 Magnus Norddahl
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**
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** This software is provided 'as-is', without any express or implied
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** warranty. In no event will the authors be held liable for any damages
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** arising from the use of this software.
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**
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** Permission is granted to anyone to use this software for any purpose,
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** including commercial applications, and to alter it and redistribute it
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** freely, subject to the following restrictions:
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**
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** 1. The origin of this software must not be misrepresented; you must not
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** claim that you wrote the original software. If you use this software
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** in a product, an acknowledgment in the product documentation would be
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** appreciated but is not required.
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** 2. Altered source versions must be plainly marked as such, and must not be
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** misrepresented as being the original software.
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** 3. This notice may not be removed or altered from any source distribution.
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**
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*/
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#pragma once
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#include "r_poly_scene.h"
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struct PolyPortalVertexRange
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{
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PolyPortalVertexRange(const TriVertex *vertices, int count, bool ccw, uint32_t subsectorDepth) : Vertices(vertices), Count(count), Ccw(ccw), SubsectorDepth(subsectorDepth) { }
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const TriVertex *Vertices;
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int Count;
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bool Ccw;
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uint32_t SubsectorDepth;
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};
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class PolyPortalSegment
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{
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public:
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PolyPortalSegment(int x1, int x2) : X1(x1), X2(x2) { }
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int X1, X2;
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};
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class PolyDrawSectorPortal
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{
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public:
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PolyDrawSectorPortal(FSectorPortal *portal, bool ceiling);
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void Render(int portalDepth);
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void RenderTranslucent(int portalDepth);
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FSectorPortal *Portal = nullptr;
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uint32_t StencilValue = 0;
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std::vector<PolyPortalVertexRange> Shape;
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std::vector<PolyPortalSegment> Segments;
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Vec4f PortalPlane = Vec4f(0.0f);
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private:
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void SaveGlobals();
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void RestoreGlobals();
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bool Ceiling;
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RenderPolyScene RenderPortal;
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int savedextralight;
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DVector3 savedpos;
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DAngle savedangle;
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double savedvisibility;
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AActor *savedcamera;
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sector_t *savedsector;
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};
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class PolyDrawLinePortal
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{
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public:
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PolyDrawLinePortal(FLinePortal *portal);
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PolyDrawLinePortal(line_t *mirror);
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void Render(int portalDepth);
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void RenderTranslucent(int portalDepth);
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FLinePortal *Portal = nullptr;
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line_t *Mirror = nullptr;
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uint32_t StencilValue = 0;
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std::vector<PolyPortalVertexRange> Shape;
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std::vector<PolyPortalSegment> Segments;
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private:
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void SaveGlobals();
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void RestoreGlobals();
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RenderPolyScene RenderPortal;
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int savedextralight;
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DVector3 savedpos;
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DAngle savedangle;
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AActor *savedcamera;
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sector_t *savedsector;
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bool savedinvisibility;
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DVector3 savedViewPath[2];
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};
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