Remove ancient trunk folder from svn repository

[synfig.git] / synfig-core / trunk / src / modules / mod_filter / halftone.cpp

diff --git a/synfig-core/trunk/src/modules/mod_filter/halftone.cpp b/synfig-core/trunk/src/modules/mod_filter/halftone.cpp
deleted file mode 100644 (file)
index 8e8ba9e..0000000
--- a/synfig-core/trunk/src/modules/mod_filter/halftone.cpp
+++ /dev/null
@@ -1,168 +0,0 @@
-/* === S Y N F I G ========================================================= */
-/*!    \file halftone.cpp
-**     \brief blehh
-**
-**     $Id$
-**
-**     \legal
-**     Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
-**     Copyright (c) 2008 Chris Moore
-**
-**     This package is free software; you can redistribute it and/or
-**     modify it under the terms of the GNU General Public License as
-**     published by the Free Software Foundation; either version 2 of
-**     the License, or (at your option) any later version.
-**
-**     This package is distributed in the hope that it will be useful,
-**     but WITHOUT ANY WARRANTY; without even the implied warranty of
-**     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-**     General Public License for more details.
-**     \endlegal
-*/
-/* ========================================================================= */
-
-/* === H E A D E R S ======================================================= */
-
-#ifdef USING_PCH
-#      include "pch.h"
-#else
-#ifdef HAVE_CONFIG_H
-#      include <config.h>
-#endif
-
-#include "halftone.h"
-
-#endif
-
-/* === M A C R O S ========================================================= */
-
-using namespace synfig;
-using namespace std;
-using namespace etl;
-
-/* === G L O B A L S ======================================================= */
-
-
-/* === P R O C E D U R E S ================================================= */
-
-#define SQRT2  (1.414213562f)
-
-/* === M E T H O D S ======================================================= */
-
-float
-Halftone::operator()(const Point &point, const float& luma, float supersample)const
-{
-       float halftone(mask(point));
-
-       if(supersample>=0.5f)
-               supersample=0.4999999999f;
-
-       halftone=(halftone-0.5f)*(1.0f-supersample*2.0f)+0.5f;
-
-       const float diff(halftone-luma);
-
-       if(supersample)
-       {
-               const float amount(diff/(supersample*2.0f)+0.5f);
-
-               if(amount<=0.0f+0.01f)
-                       return 1.0f;
-               else if(amount>=1.0f-0.01f)
-                       return 0.0f;
-               else
-                       return 1.0f-amount;
-       }
-       else
-       {
-               if(diff>=0)
-                       return 0.0f;
-               else
-                       return 1.0f;
-       }
-
-       return 0.0f;
-}
-
-float
-Halftone::mask(synfig::Point point)const
-{
-       float radius1;
-       float radius2;
-
-       point-=origin;
-
-       {
-               const float     a(Angle::sin(-angle).get()),    b(Angle::cos(-angle).get());
-               const float     u(point[0]),v(point[1]);
-
-               point[0]=b*u-a*v;
-               point[1]=a*u+b*v;
-       }
-
-       if(type==TYPE_STRIPE)
-       {
-               Point pnt(fmod(point[0],size[0]),fmod(point[1],size[1]));
-               while(pnt[0]<0)pnt[0]+=abs(size[0]);
-               while(pnt[1]<0)pnt[1]+=abs(size[1]);
-
-               float x(pnt[1]/size[1]);
-               if(x>0.5)x=1.0-x;
-               x*=2;
-               return x;
-       }
-
-       {
-               Point pnt(fmod(point[0],size[0]),fmod(point[1],size[1]));
-               while(pnt[0]<0)pnt[0]+=abs(size[0]);
-               while(pnt[1]<0)pnt[1]+=abs(size[1]);
-               pnt-=Vector(size[0]*0.5,size[1]*0.5);
-               pnt*=2.0;
-               pnt[0]/=size[0];
-               pnt[1]/=size[1];
-
-               radius1=pnt.mag()/SQRT2;
-               radius1*=radius1;
-       }
-       if(type==TYPE_DARKONLIGHT || type== TYPE_LIGHTONDARK)
-               return radius1;
-
-       {
-               Point pnt(fmod(point[0]+size[0]*0.5,size[0]),fmod(point[1]+size[0]*0.5,size[1]));
-               while(pnt[0]<0)pnt[0]+=abs(size[0]);
-               while(pnt[1]<0)pnt[1]+=abs(size[1]);
-               pnt-=Vector(size[0]*0.5,size[1]*0.5);
-               pnt*=2.0;
-               pnt[0]/=size[0];
-               pnt[1]/=size[1];
-
-               radius2=pnt.mag()/SQRT2;
-               radius2*=radius2;
-       }
-
-       if(type==TYPE_DIAMOND)
-       {
-               //return (radius1+(1.0f-radius2))*0.5;
-               float x((radius1+(1.0f-radius2))*0.5);
-               //float x(((radius2-radius1)*((radius1+(1.0f-radius2))*0.5)+radius1)*2.0f);
-               x-=0.5;
-               x*=2.0;
-               if(x<0)x=-sqrt(-x);else x=sqrt(x);
-               x*=1.01f;
-               x/=2.0;
-               x+=0.5;
-               return x;
-       }
-
-       if(type==TYPE_SYMMETRIC)
-       {
-               float x(((radius2-radius1)*((radius1+(1.0f-radius2))*0.5)+radius1)*2.0f);
-               x-=0.5;
-               x*=2.0;
-               if(x<0)x=-sqrt(-x);else x=sqrt(x);
-               x*=1.01f;
-               x/=2.0;
-               x+=0.5;
-               return x;
-       }
-       return 0;
-}