JurassicParkTrespasser/jp2_pc/Source/Lib/Renderer/Primitives/FogT.hpp

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/***********************************************************************************************
*
* Copyright <EFBFBD> DreamWorks Interactive. 1996
*
* Contents:
* Classes for using, or not using, fogging in raster primitives.
*
* Notes:
*
* To Do:
* Find a faster way to fall through the 'SetFlatColour' member function if the
* 'CLineBumpMake' line primitive is being used.
*
***********************************************************************************************
*
* $Log:: /JP2_PC/Source/Lib/Renderer/Primitives/FogT.hpp $
*
* 14 98.09.19 12:39a Mmouni
* Added "forceinline" to many small inline functions.
* Inlined some functions for speed.
*
* 13 12/20/96 12:10p Mlange
* Moved fog source files to 'Renderer' directory.
*
* 12 12/15/96 2:44p Mlange
* CFogOn::u4Offset() now always returns 0.
*
* 11 10/14/96 10:06a Pkeet
* Made 'iDefaultFog' extern instead of static.
*
* 10 10/09/96 7:18p Pkeet
* Moved the 'iDefaultFog' global variable here.
*
* 9 10/03/96 3:15p Pkeet
* Removed the 'pvGetClutAddress' global function.
*
* 8 9/27/96 4:31p Pkeet
* Removed the 'SetFlatColour' member function.
*
* 7 96/09/25 15:40 Speter
* Changed pvAddFog to u4GetClutOffset.
*
* 6 9/24/96 2:52p Pkeet
* Added checks to ensure that the 'SetFlatColour' member function only sets a colour if a clut
* is present.
*
* 5 9/18/96 3:06p Pkeet
* Made the 'pvGetClutAddress' global function static. Disabled the 'SetFlatColour' member
* function for the 'CFogOff' class.
*
* 4 96/09/12 16:24 Speter
* Incorporated new TReflectVal usage.
*
* 3 96/09/09 18:30 Speter
* Made compatible with change of fIntensity to lvIntensity.
*
* 2 8/22/96 2:07p Pkeet
* Changed member functions to static member functions.
*
* 1 8/21/96 4:45p Pkeet
* Initial implementation.
*
**********************************************************************************************/
#ifndef HEADER_LIB_RENDERER_PRIMITIVES_FOGT_HPP
#define HEADER_LIB_RENDERER_PRIMITIVES_FOGT_HPP
//
// Global includes.
//
#include "Lib/Renderer/Primitives/DrawTriangle.hpp"
#include "Lib/Renderer/Fog.hpp"
//
// Global variables.
//
// Default fogging value.
extern int iDefaultFog;
//
// Externally defined variables.
//
extern CFog fogFog;
//
// Class definitions.
//
//*********************************************************************************************
//
class CFogOn
//
// Defines a class for rasterizing primitives with fog.
//
//**************************************
{
public:
//*****************************************************************************************
//
static forceinline uint32 u4Offset
(
int32 i4_invz
)
//
// Returns the offset into the clut for a given fog level.
//
//**************************************
{
return 0;
}
};
//*********************************************************************************************
//
class CFogOff
//
// Defines a class for rasterizing primitives without fog.
//
//**************************************
{
public:
//*****************************************************************************************
//
static forceinline uint32 u4Offset
(
int32 i4_invz
)
//
// Returns zero.
//
//**************************************
{
return 0;
}
};
#endif