72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//=============================================================================//
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#ifndef IINCREMENTAL_H
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#define IINCREMENTAL_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "mathlib/vector.h"
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#include "utlvector.h"
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typedef unsigned short IncrementalLightID;
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// Incremental lighting manager.
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class IIncremental
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{
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// IIncremental overrides.
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public:
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virtual ~IIncremental() {}
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// Sets up for incremental mode. The BSP file (in bsplib) should be loaded
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// already so it can detect if the incremental file is up to date.
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virtual bool Init( char const *pBSPFilename, char const *pIncrementalFilename ) = 0;
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// Prepare to light. You must call Init once, but then you can
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// do as many Prepare/AddLight/Finalize phases as you want.
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virtual bool PrepareForLighting() = 0;
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// Called every time light is added to a face.
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// NOTE: This is the ONLY threadsafe function in IIncremental.
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virtual void AddLightToFace(
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IncrementalLightID lightID,
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int iFace,
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int iSample,
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int lmSize,
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float dot,
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int iThread ) = 0;
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// Called when it's done applying light from the specified light to the specified face.
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virtual void FinishFace (
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IncrementalLightID lightID,
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int iFace,
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int iThread ) = 0;
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// For each face that was changed during the lighting process, save out
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// new data for it in the incremental file.
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// Returns false if the incremental lighting isn't active.
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virtual bool Finalize() = 0;
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// Grows touched to a size of 'numfaces' and sets each byte to 0 or 1 telling
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// if the face's lightmap was updated in Finalize.
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virtual void GetFacesTouched( CUtlVector<unsigned char> &touched ) = 0;
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// This saves the .r0 file and updates the lighting in the BSP file.
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virtual bool Serialize() = 0;
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};
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extern IIncremental* GetIncremental();
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#endif // IINCREMENTAL_H
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