Remove ancient trunk folder from svn repository
[synfig.git] / synfig-core / src / modules / mod_noise / distort.cpp
diff --git a/synfig-core/src/modules/mod_noise/distort.cpp b/synfig-core/src/modules/mod_noise/distort.cpp
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+/* === S Y N F I G ========================================================= */
+/*!    \file distort.cpp
+**     \brief Implementation of the "Noise Distort" layer
+**
+**     $Id$
+**
+**     \legal
+**     Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**     Copyright (c) 2007 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 "distort.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(NoiseDistort);
+SYNFIG_LAYER_SET_NAME(NoiseDistort,"noise_distort");
+SYNFIG_LAYER_SET_LOCAL_NAME(NoiseDistort,N_("Noise Distort"));
+SYNFIG_LAYER_SET_CATEGORY(NoiseDistort,N_("Distortions"));
+SYNFIG_LAYER_SET_VERSION(NoiseDistort,"0.0");
+SYNFIG_LAYER_SET_CVS_ID(NoiseDistort,"$Id$");
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+NoiseDistort::NoiseDistort():
+       size(1,1)
+{
+       set_blend_method(Color::BLEND_STRAIGHT);
+       smooth=RandomNoise::SMOOTH_COSINE;
+       detail=4;
+       speed=0;
+       random.set_seed(time(NULL));
+       turbulent=false;
+       displacement=Vector(0.25,0.25);
+}
+
+inline Color
+NoiseDistort::color_func(const Point &point, float /*supersample*/,Context context)const
+{
+       Color ret(0,0,0,0);
+
+       float x(point[0]/size[0]*(1<<detail));
+       float y(point[1]/size[1]*(1<<detail));
+
+       int i;
+       Time time;
+       time=speed*curr_time;
+       RandomNoise::SmoothType temp_smooth(smooth);
+       RandomNoise::SmoothType smooth((!speed && temp_smooth == RandomNoise::SMOOTH_SPLINE) ? RandomNoise::SMOOTH_FAST_SPLINE : temp_smooth);
+
+       {
+               Vector vect(0,0);
+               for(i=0;i<detail;i++)
+               {
+                       vect[0]=random(smooth,0+(detail-i)*5,x,y,time)+vect[0]*0.5;
+                       vect[1]=random(smooth,1+(detail-i)*5,x,y,time)+vect[1]*0.5;
+
+                       if(vect[0]<-1)vect[0]=-1;if(vect[0]>1)vect[0]=1;
+                       if(vect[1]<-1)vect[1]=-1;if(vect[1]>1)vect[1]=1;
+
+                       if(turbulent)
+                       {
+                               vect[0]=abs(vect[0]);
+                               vect[1]=abs(vect[1]);
+                       }
+
+                       x/=2.0f;
+                       y/=2.0f;
+               }
+
+               if(!turbulent)
+               {
+                       vect[0]=vect[0]/2.0f+0.5f;
+                       vect[1]=vect[1]/2.0f+0.5f;
+               }
+               vect[0]=(vect[0]-0.5f)*displacement[0];
+               vect[1]=(vect[1]-0.5f)*displacement[1];
+
+               ret=context.get_color(point+vect);
+       }
+       return ret;
+}
+
+inline float
+NoiseDistort::calc_supersample(const synfig::Point &/*x*/, float /*pw*/,float /*ph*/)const
+{
+       return 0.0f;
+}
+
+void
+NoiseDistort::set_time(synfig::Context context, synfig::Time t)const
+{
+       curr_time=t;
+       context.set_time(t);
+}
+
+void
+NoiseDistort::set_time(synfig::Context context, synfig::Time t, const synfig::Point &point)const
+{
+       curr_time=t;
+       context.set_time(t,point);
+}
+
+synfig::Layer::Handle
+NoiseDistort::hit_check(synfig::Context context, const synfig::Point &point)const
+{
+       if(get_blend_method()==Color::BLEND_STRAIGHT && get_amount()>=0.5)
+               return const_cast<NoiseDistort*>(this);
+       if(get_amount()==0.0)
+               return context.hit_check(point);
+       if(color_func(point,0,context).get_a()>0.5)
+               return const_cast<NoiseDistort*>(this);
+       return false;
+}
+
+bool
+NoiseDistort::set_param(const String & param, const ValueBase &value)
+{
+       if(param=="seed" && value.same_type_as(int()))
+       {
+               random.set_seed(value.get(int()));
+               return true;
+       }
+       IMPORT(size);
+       IMPORT(speed);
+       IMPORT(smooth);
+       IMPORT(detail);
+       IMPORT(turbulent);
+       IMPORT(displacement);
+       return Layer_Composite::set_param(param,value);
+}
+
+ValueBase
+NoiseDistort::get_param(const String & param)const
+{
+       if(param=="seed")
+               return random.get_seed();
+       EXPORT(size);
+       EXPORT(speed);
+       EXPORT(smooth);
+       EXPORT(detail);
+       EXPORT(displacement);
+       EXPORT(turbulent);
+
+       EXPORT_NAME();
+       EXPORT_VERSION();
+
+       return Layer_Composite::get_param(param);
+}
+
+Layer::Vocab
+NoiseDistort::get_param_vocab()const
+{
+       Layer::Vocab ret(Layer_Composite::get_param_vocab());
+
+       ret.push_back(ParamDesc("displacement")
+               .set_local_name(_("Displacement"))
+       );
+
+       ret.push_back(ParamDesc("size")
+               .set_local_name(_("Size"))
+       );
+       ret.push_back(ParamDesc("seed")
+               .set_local_name(_("RandomNoise Seed"))
+       );
+       ret.push_back(ParamDesc("smooth")
+               .set_local_name(_("Interpolation"))
+               .set_description(_("What type of interpolation to use"))
+               .set_hint("enum")
+               .add_enum_value(RandomNoise::SMOOTH_DEFAULT,    "nearest",      _("Nearest Neighbor"))
+               .add_enum_value(RandomNoise::SMOOTH_LINEAR,     "linear",       _("Linear"))
+               .add_enum_value(RandomNoise::SMOOTH_COSINE,     "cosine",       _("Cosine"))
+               .add_enum_value(RandomNoise::SMOOTH_SPLINE,     "spline",       _("Spline"))
+               .add_enum_value(RandomNoise::SMOOTH_CUBIC,      "cubic",        _("Cubic"))
+       );
+       ret.push_back(ParamDesc("detail")
+               .set_local_name(_("Detail"))
+       );
+       ret.push_back(ParamDesc("speed")
+               .set_local_name(_("Animation Speed"))
+       );
+       ret.push_back(ParamDesc("turbulent")
+               .set_local_name(_("Turbulent"))
+       );
+
+       return ret;
+}
+
+Color
+NoiseDistort::get_color(Context context, const Point &point)const
+{
+       const Color color(color_func(point,0,context));
+
+       if(get_amount()==1.0 && get_blend_method()==Color::BLEND_STRAIGHT)
+               return color;
+       else
+               return Color::blend(color,context.get_color(point),get_amount(),get_blend_method());
+}
+
+Rect
+NoiseDistort::get_bounding_rect(Context context)const
+{
+       if(is_disabled())
+               return Rect::zero();
+
+       if(Color::is_onto(get_blend_method()))
+               return context.get_full_bounding_rect();
+
+       Rect bounds(context.get_full_bounding_rect().expand_x(displacement[0]).expand_y(displacement[1]));
+
+       return bounds;
+}
+
+/*
+bool
+NoiseDistort::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
+{
+       SuperCallback supercb(cb,0,9500,10000);
+
+       if(get_amount()==1.0 && get_blend_method()==Color::BLEND_STRAIGHT)
+       {
+               surface->set_wh(renddesc.get_w(),renddesc.get_h());
+       }
+       else
+       {
+               if(!context.accelerated_render(surface,quality,renddesc,&supercb))
+                       return false;
+               if(get_amount()==0)
+                       return true;
+       }
+
+
+       int x,y;
+
+       Surface::pen pen(surface->begin());
+       const Real pw(renddesc.get_pw()),ph(renddesc.get_ph());
+       Point pos;
+       Point tl(renddesc.get_tl());
+       const int w(surface->get_w());
+       const int h(surface->get_h());
+
+       if(get_amount()==1.0 && get_blend_method()==Color::BLEND_STRAIGHT)
+       {
+               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,calc_supersample(pos,pw,ph),context));
+       }
+       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,calc_supersample(pos,pw,ph),context),pen.get_value(),get_amount(),get_blend_method()));
+       }
+
+       // Mark our progress as finished
+       if(cb && !cb->amount_complete(10000,10000))
+               return false;
+
+       return true;
+}
+*/