gBufferConditionerHLSL.h

Engine/source/lighting/advanced/hlsl/gBufferConditionerHLSL.h
Classes:

class
Detailed Description

 1
 2//-----------------------------------------------------------------------------
 3// Copyright (c) 2012 GarageGames, LLC
 4//
 5// Permission is hereby granted, free of charge, to any person obtaining a copy
 6// of this software and associated documentation files (the "Software"), to
 7// deal in the Software without restriction, including without limitation the
 8// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 9// sell copies of the Software, and to permit persons to whom the Software is
10// furnished to do so, subject to the following conditions:
11//
12// The above copyright notice and this permission notice shall be included in
13// all copies or substantial portions of the Software.
14//
15// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21// IN THE SOFTWARE.
22//-----------------------------------------------------------------------------
23
24#ifndef _GBUFFER_CONDITIONER_HLSL_H_
25#define _GBUFFER_CONDITIONER_HLSL_H_
26
27#ifndef _CONDITIONER_BASE_H_
28#include "shaderGen/conditionerFeature.h"
29#endif
30#ifndef _SHADEROP_H_
31#include "shaderGen/shaderOp.h"
32#endif
33
34
35///
36class GBufferConditionerHLSL : public ConditionerFeature
37{
38   typedef ConditionerFeature Parent;
39
40public:
41   enum NormalStorage
42   {
43      CartesianXYZ,
44      CartesianXY,
45      Spherical,
46      LambertAzimuthal,
47   };
48
49   enum NormalSpace
50   {
51      WorldSpace,
52      ViewSpace,
53   };
54   
55protected:
56
57   NormalStorage mNormalStorageType;
58   bool mCanWriteNegativeValues;
59   U32 mBitsPerChannel;
60
61public:
62
63   GBufferConditionerHLSL( const GFXFormat bufferFormat, const NormalSpace nrmSpace );
64   virtual ~GBufferConditionerHLSL();
65
66
67   virtual void processVert( Vector<ShaderComponent*> &componentList, const MaterialFeatureData &fd );
68   virtual void processPix( Vector<ShaderComponent*> &componentList, const MaterialFeatureData &fd );
69   virtual Resources getResources( const MaterialFeatureData &fd );
70   virtual String getName() { return "GBuffer Conditioner"; }
71
72protected:
73
74   virtual Var *printMethodHeader( MethodType methodType, const String &methodName, Stream &stream, MultiLine *meta );
75
76   virtual GenOp* _posnegEncode( GenOp *val );
77   virtual GenOp* _posnegDecode( GenOp *val );
78   virtual Var* _conditionOutput( Var *unconditionedOutput, MultiLine *meta );
79   virtual Var* _unconditionInput( Var *conditionedInput, MultiLine *meta );
80};
81
82#endif // _GBUFFER_CONDITIONER_HLSL_H_
83