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dilatemodifier.cpp
1 // © Copyright 2010 - 2016 BlackTopp Studios Inc.
2 /* This file is part of The Mezzanine Engine.
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40 /*
41  -----------------------------------------------------------------------------
42  This source file is part of ogre-procedural
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44  For the latest info, see http://code.google.com/p/ogre-procedural/
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46  Copyright (c) 2010-2013 Michael Broutin
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64  THE SOFTWARE.
65  -----------------------------------------------------------------------------
66  */
67 #ifndef _graphicsproceduraldilatemodifier_cpp
68 #define _graphicsproceduraldilatemodifier_cpp
69 
70 #include "Graphics/Procedural/Texture/dilatemodifier.h"
71 
72 namespace Mezzanine
73 {
74  namespace Graphics
75  {
76  namespace Procedural
77  {
79  NumIterations(10)
80  { }
81 
83  { }
84 
85  ///////////////////////////////////////////////////////////////////////////////
86  // Utility
87 
89  {
90  Integer Width = static_cast<Integer>( Buffer.GetWidth() );
91  Integer Height = static_cast<Integer>( Buffer.GetHeight() );
92  TextureBuffer IntBuffer( Buffer );
93  TextureBuffer DestBuffer( Buffer );
94 
95  TextureBuffer* pSrc = NULL;
96  TextureBuffer* pDest = NULL;
97 
98  for( Integer CurrIteration = 0 ; CurrIteration < static_cast<Integer>( this->NumIterations ) ; ++CurrIteration )
99  {
100  if( CurrIteration == 0 ) {
101  pSrc = &Buffer;
102  }else{
103  pSrc = ( (CurrIteration % 2) != (this->NumIterations % 2) ) ? &DestBuffer : &IntBuffer;
104  }
105  pDest = ( (CurrIteration % 2) == (this->NumIterations % 2) ) ? &DestBuffer : &IntBuffer;
106 
107  for( Integer Y = 0 ; Y < Height ; ++Y )
108  {
109  for( Integer X = 0 ; X < Width ; ++X )
110  {
111  Integer Sum = -1;
112  pDest->SetPixel(X,Y,pSrc->GetPixel(X,Y));
113 
114  for( Integer V = -1 ; V < 2 ; ++V )
115  {
116  for( Integer U = -1 ; U < 2 ; ++U )
117  {
118  ColourValue Pixel = pSrc->GetPixel( ( X + Width + U ) % Width, ( Y + Height + V ) % Height );
119  if( ( Pixel.RedChannel + Pixel.GreenChannel + Pixel.BlueChannel ) * 255.0 > Sum ) {
120  Sum = static_cast<Integer>( ( Pixel.RedChannel + Pixel.GreenChannel + Pixel.BlueChannel ) * 255.0 );
121  pDest->SetPixel(X,Y,Pixel);
122  }
123  }
124  }
125  }
126  }
127  }
128 
129  Buffer.SetData(DestBuffer);
130  }
131 
133  { return "DilateModifier"; }
134 
135  ///////////////////////////////////////////////////////////////////////////////
136  // Configuration
137 
139  { this->NumIterations = Iterations; return *this; }
140  }//Procedural
141  }//Graphics
142 }//Mezzanine
143 
144 #endif
ColourChannelType & GetPixel(const Whole X, const Whole Y, const UInt16 Component)
Gets access to the pixel at the specified position in this buffer. the X or Y location go beyond the ...
UInt8 NumIterations
The number of passes over the entire image to take when expanding the bright areas.
Whole GetWidth() const
Get the pixel width of this texture.
int Integer
A datatype used to represent any integer close to.
Definition: datatypes.h:154
A modifier that will bright areas of the texture over the darker areas of the image.
uint8_t UInt8
An 8-bit unsigned integer.
Definition: datatypes.h:118
This is a simple class for holding 4 reals representing the colour any give object or lightsource can...
Definition: colourvalue.h:64
DilateModifier & SetNumIterations(const UInt8 Iterations)
Sets the number of times this filter will go over the texture, generating larger bright areas...
virtual void Modify(TextureBuffer &Buffer)
Alters the generated pixels in a TextureBuffer.
virtual String GetName() const
Gets the name of this modifier.
Real GreenChannel
Value from 0.0 to 1.0 representing the amount of green present in the colour. 1.0 if very green...
Definition: colourvalue.h:73
A convenience buffer that stores pixel colour values of a texture to be generated.
Definition: texturebuffer.h:86
The bulk of the engine components go in this namspace.
Definition: actor.cpp:56
Whole GetHeight() const
Get the pixel height of this texture.
Real BlueChannel
Value from 0.0 to 1.0 representing the amount of blue present in the colour. 1.0 if very blue...
Definition: colourvalue.h:76
void SetPixel(const Whole X, const Whole Y, const ColourValue &Colour)
Set colour of a specified pixel using a ColourValue. the X or Y location go beyond the set size of th...
Real RedChannel
Value from 0.0 to 1.0 representing the amount of red present in the colour. 1.0 if very red...
Definition: colourvalue.h:70
std::string String
A datatype used to a series of characters.
Definition: datatypes.h:159
void SetData(const TextureBuffer &Other)
Copies image data from another buffer into this buffer.