--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file halftone3.cpp
+** \brief Implementation of the "Halftone 3" layer
+**
+** $Id$
+**
+** \legal
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+** Copyright (c) 2007-2008 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 "halftone3.h"
+#include "halftone.h"
+
+#include <synfig/string.h>
+#include <synfig/time.h>
+#include <synfig/context.h>
+#include <synfig/paramdesc.h>
+#include <synfig/renddesc.h>
+#include <synfig/surface.h>
+#include <synfig/value.h>
+#include <synfig/valuenode.h>
+
+#endif
+
+/* === M A C R O S ========================================================= */
+
+using namespace synfig;
+using namespace std;
+using namespace etl;
+
+/* === G L O B A L S ======================================================= */
+
+SYNFIG_LAYER_INIT(Halftone3);
+SYNFIG_LAYER_SET_NAME(Halftone3,"halftone3");
+SYNFIG_LAYER_SET_LOCAL_NAME(Halftone3,N_("Halftone 3"));
+SYNFIG_LAYER_SET_CATEGORY(Halftone3,N_("Filters"));
+SYNFIG_LAYER_SET_VERSION(Halftone3,"0.0");
+SYNFIG_LAYER_SET_CVS_ID(Halftone3,"$Id$");
+
+/* === P R O C E D U R E S ================================================= */
+
+#define HALFSQRT2 (0.7)
+#define SQRT2 (1.414213562f)
+
+/* === M E T H O D S ======================================================= */
+
+Halftone3::Halftone3()
+{
+ size=(synfig::Vector(0.25,0.25));
+ type=TYPE_SYMMETRIC;
+
+ for(int i=0;i<3;i++)
+ {
+ tone[i].size=size;
+ tone[i].type=type;
+ tone[i].origin=(synfig::Point(0,0));
+ tone[i].angle=Angle::deg(30.0)*(float)i;
+ }
+
+ subtractive=true;
+
+ if(subtractive)
+ {
+ color[0]=Color::cyan();
+ color[1]=Color::magenta();
+ color[2]=Color::yellow();
+ }
+ else
+ {
+ color[0]=Color::red();
+ color[1]=Color::green();
+ color[2]=Color::blue();
+ }
+
+ set_blend_method(Color::BLEND_STRAIGHT);
+
+ for(int i=0;i<3;i++)
+ for(int j=0;j<3;j++)
+ inverse_matrix[i][j]=(j==i)?1.0f:0.0f;
+
+ sync();
+}
+
+void
+Halftone3::sync()
+{
+ for(int i=0;i<3;i++)
+ {
+ tone[i].size=size;
+ tone[i].type=type;
+ }
+
+#define matrix inverse_matrix
+ //float matrix[3][3];
+
+ if(subtractive)
+ {
+ for(int i=0;i<3;i++)
+ {
+ matrix[i][0]=1.0f-(color[i].get_r());
+ matrix[i][1]=1.0f-(color[i].get_g());
+ matrix[i][2]=1.0f-(color[i].get_b());
+ float mult=sqrt(matrix[i][0]*matrix[i][0]+matrix[i][1]*matrix[i][1]+matrix[i][2]*matrix[i][2]);
+ if(mult)
+ {
+ matrix[i][0]/=mult;
+ matrix[i][1]/=mult;
+ matrix[i][2]/=mult;
+ matrix[i][0]/=mult;
+ matrix[i][1]/=mult;
+ matrix[i][2]/=mult;
+ }
+ }
+ }
+ else
+ {
+ for(int i=0;i<3;i++)
+ {
+ matrix[i][0]=color[i].get_r();
+ matrix[i][1]=color[i].get_g();
+ matrix[i][2]=color[i].get_b();
+ float mult=sqrt(matrix[i][0]*matrix[i][0]+matrix[i][1]*matrix[i][1]+matrix[i][2]*matrix[i][2]);
+ if(mult)
+ {
+ matrix[i][0]/=mult;
+ matrix[i][1]/=mult;
+ matrix[i][2]/=mult;
+ matrix[i][0]/=mult;
+ matrix[i][1]/=mult;
+ matrix[i][2]/=mult;
+ }
+ }
+ }
+#undef matrix
+
+
+
+#if 0
+ // Insert guass-jordan elimination code here
+ int k=0,i=0,j=0,z_size=3;
+#define A inverse_matrix
+
+ for (k=0;k<z_size;k++)
+ // the pivot element
+ { A[k][k]= -1/A[k][k];
+
+ //the pivot column
+ for (i=0;i<z_size;i++)
+ if (i!=k) A[i][k]*=A[k][k];
+
+ //elements not in a pivot row or column
+ for (i=0;i<z_size;i++)
+ if (i!=k)
+ for (j=0;j<z_size;j++)
+ if (j!=k)
+ A[i][j]+=A[i][k]*A[k][j];
+
+ //elements in a pivot row
+ for (i=0;i<z_size;i++)
+ if (i!=k)
+ A[k][i]*=A[k][k];
+ }
+
+ //change sign
+ for (i=0;i<z_size;i++) /*reverse sign*/
+ for (j=0;j<z_size;j++)
+ A[i][j]=-A[i][j];
+#undef A
+#endif
+}
+
+inline Color
+Halftone3::color_func(const Point &point, float supersample,const Color& in_color)const
+{
+ Color halfcolor;
+
+ float chan[3];
+
+
+ if(subtractive)
+ {
+ chan[0]=inverse_matrix[0][0]*(1.0f-in_color.get_r())+inverse_matrix[0][1]*(1.0f-in_color.get_g())+inverse_matrix[0][2]*(1.0f-in_color.get_b());
+ chan[1]=inverse_matrix[1][0]*(1.0f-in_color.get_r())+inverse_matrix[1][1]*(1.0f-in_color.get_g())+inverse_matrix[1][2]*(1.0f-in_color.get_b());
+ chan[2]=inverse_matrix[2][0]*(1.0f-in_color.get_r())+inverse_matrix[2][1]*(1.0f-in_color.get_g())+inverse_matrix[2][2]*(1.0f-in_color.get_b());
+
+ halfcolor=Color::white();
+ halfcolor-=(~color[0])*tone[0](point,chan[0],supersample);
+ halfcolor-=(~color[1])*tone[1](point,chan[1],supersample);
+ halfcolor-=(~color[2])*tone[2](point,chan[2],supersample);
+
+ halfcolor.set_a(in_color.get_a());
+ }
+ else
+ {
+ chan[0]=inverse_matrix[0][0]*in_color.get_r()+inverse_matrix[0][1]*in_color.get_g()+inverse_matrix[0][2]*in_color.get_b();
+ chan[1]=inverse_matrix[1][0]*in_color.get_r()+inverse_matrix[1][1]*in_color.get_g()+inverse_matrix[1][2]*in_color.get_b();
+ chan[2]=inverse_matrix[2][0]*in_color.get_r()+inverse_matrix[2][1]*in_color.get_g()+inverse_matrix[2][2]*in_color.get_b();
+
+ halfcolor=Color::black();
+ halfcolor+=color[0]*tone[0](point,chan[0],supersample);
+ halfcolor+=color[1]*tone[1](point,chan[1],supersample);
+ halfcolor+=color[2]*tone[2](point,chan[2],supersample);
+
+ halfcolor.set_a(in_color.get_a());
+ }
+
+ return halfcolor;
+}
+
+inline float
+Halftone3::calc_supersample(const synfig::Point &/*x*/, float pw,float /*ph*/)const
+{
+ return abs(pw/(tone[0].size).mag());
+}
+
+synfig::Layer::Handle
+Halftone3::hit_check(synfig::Context /*context*/, const synfig::Point &/*point*/)const
+{
+ return const_cast<Halftone3*>(this);
+}
+
+bool
+Halftone3::set_param(const String & param, const ValueBase &value)
+{
+ IMPORT_PLUS(size, {tone[0].size=size; tone[1].size=size; tone[2].size=size;});
+ IMPORT_PLUS(type, {tone[0].type=type; tone[1].type=type; tone[2].type=type;});
+
+ IMPORT_PLUS(color[0],sync());
+ IMPORT_PLUS(color[1],sync());
+ IMPORT_PLUS(color[2],sync());
+
+ IMPORT_PLUS(subtractive,sync());
+
+ IMPORT(tone[0].angle);
+ IMPORT(tone[0].origin);
+
+ IMPORT(tone[1].angle);
+ IMPORT(tone[1].origin);
+
+ IMPORT(tone[2].angle);
+ IMPORT(tone[2].origin);
+
+ IMPORT_AS(tone[0].origin,"tone[0].offset");
+ IMPORT_AS(tone[1].origin,"tone[1].offset");
+ IMPORT_AS(tone[2].origin,"tone[2].offset");
+
+ return Layer_Composite::set_param(param,value);
+}
+
+ValueBase
+Halftone3::get_param(const String & param)const
+{
+ EXPORT(size);
+ EXPORT(type);
+
+ EXPORT(color[0]);
+ EXPORT(color[1]);
+ EXPORT(color[2]);
+
+ EXPORT(subtractive);
+
+ EXPORT(tone[0].angle);
+ EXPORT(tone[0].origin);
+
+ EXPORT(tone[1].angle);
+ EXPORT(tone[1].origin);
+
+ EXPORT(tone[2].angle);
+ EXPORT(tone[2].origin);
+
+ EXPORT_NAME();
+ EXPORT_VERSION();
+
+ return Layer_Composite::get_param(param);
+}
+
+Layer::Vocab
+Halftone3::get_param_vocab()const
+{
+ Layer::Vocab ret(Layer_Composite::get_param_vocab());
+
+ ret.push_back(ParamDesc("size")
+ .set_local_name(_("Mask Size"))
+ );
+ ret.push_back(ParamDesc("type")
+ .set_local_name(_(" Type"))
+ .set_hint("enum")
+ .add_enum_value(TYPE_SYMMETRIC,"symmetric",_("Symmetric"))
+ .add_enum_value(TYPE_LIGHTONDARK,"lightondark",_("Light On Dark"))
+ //.add_enum_value(TYPE_DARKONLIGHT,"darkonlight",_("Dark on Light"))
+ .add_enum_value(TYPE_DIAMOND,"diamond",_("Diamond"))
+ .add_enum_value(TYPE_STRIPE,"stripe",_("Stripe"))
+ );
+ ret.push_back(ParamDesc("subtractive")
+ .set_local_name(_("Subtractive Flag"))
+ );
+
+ for(int i=0;i<3;i++)
+ {
+ String chan_name(strprintf("Chan%d",i));
+
+ ret.push_back(ParamDesc(strprintf("color[%d]",i))
+ .set_local_name(chan_name+_(" Color"))
+ );
+
+ ret.push_back(ParamDesc(strprintf("tone[%d].origin",i))
+ .set_local_name(chan_name+_(" Mask Origin"))
+ .set_is_distance()
+ );
+ ret.push_back(ParamDesc(strprintf("tone[%d].angle",i))
+ .set_local_name(chan_name+_(" Mask Angle"))
+ .set_origin(strprintf("tone[%d].origin",i))
+ );
+ }
+
+ return ret;
+}
+
+Color
+Halftone3::get_color(Context context, const Point &point)const
+{
+ const Color undercolor(context.get_color(point));
+ const Color color(color_func(point,0,undercolor));
+
+ if(get_amount()==1.0 && get_blend_method()==Color::BLEND_STRAIGHT)
+ return color;
+ else
+ return Color::blend(color,undercolor,get_amount(),get_blend_method());
+}
+
+bool
+Halftone3::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
+{
+ SuperCallback supercb(cb,0,9500,10000);
+
+ if(!context.accelerated_render(surface,quality,renddesc,&supercb))
+ return false;
+ if(get_amount()==0)
+ return true;
+
+ const Real pw(renddesc.get_pw()),ph(renddesc.get_ph());
+ const Point tl(renddesc.get_tl());
+ const int w(surface->get_w());
+ const int h(surface->get_h());
+ const float supersample_size(abs(pw/(tone[0].size).mag()));
+
+ Surface::pen pen(surface->begin());
+ Point pos;
+ int x,y;
+
+ if(is_solid_color())
+ {
+ for(y=0,pos[1]=tl[1];y<h;y++,pen.inc_y(),pen.dec_x(x),pos[1]+=ph)
+ for(x=0,pos[0]=tl[0];x<w;x++,pen.inc_x(),pos[0]+=pw)
+ pen.put_value(
+ color_func(
+ pos,
+ supersample_size,
+ pen.get_value()
+ )
+ );
+ }
+ else
+ {
+ for(y=0,pos[1]=tl[1];y<h;y++,pen.inc_y(),pen.dec_x(x),pos[1]+=ph)
+ for(x=0,pos[0]=tl[0];x<w;x++,pen.inc_x(),pos[0]+=pw)
+ pen.put_value(
+ Color::blend(
+ color_func(
+ pos,
+ supersample_size,
+ pen.get_value()
+ ),
+ pen.get_value(),
+ get_amount(),
+ get_blend_method()
+ )
+ );
+ }
+
+ // Mark our progress as finished
+ if(cb && !cb->amount_complete(10000,10000))
+ return false;
+
+ return true;
+}
projects / synfig.git / blobdiff