--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file noise.cpp
+** \brief blehh
+**
+** $Id$
+**
+** \legal
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**
+** 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 "noise.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(Noise);
+SYNFIG_LAYER_SET_NAME(Noise,"noise");
+SYNFIG_LAYER_SET_LOCAL_NAME(Noise,_("Noise Gradient"));
+SYNFIG_LAYER_SET_CATEGORY(Noise,_("Gradients"));
+SYNFIG_LAYER_SET_VERSION(Noise,"0.0");
+SYNFIG_LAYER_SET_CVS_ID(Noise,"$Id$");
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+Noise::Noise():
+ size(1,1),
+ gradient(Color::black(), Color::white())
+{
+ smooth=2;
+ detail=4;
+ speed=0;
+ do_alpha=false;
+ random.set_seed(time(NULL));
+ turbulent=false;
+ displacement=Vector(1,1);
+ do_displacement=false;
+ super_sample=false;
+}
+
+
+
+inline Color
+Noise::color_func(const Point &point, float pixel_size,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));
+ float x2(0),y2(0);
+
+ if(super_sample&&pixel_size)
+ {
+ x2=(point[0]+pixel_size)/size[0]*(1<<detail);
+ y2=(point[1]+pixel_size)/size[1]*(1<<detail);
+ }
+
+ int i;
+ Time time;
+ time=speed*curr_time;
+ int smooth((!speed && Noise::smooth==3)?5:Noise::smooth);
+
+ float t(time);
+
+ {
+ float amount=0.0f;
+ float amount2=0.0f;
+ float amount3=0.0f;
+ float alpha=0.0f;
+ for(i=0;i<detail;i++)
+ {
+ amount=random(smooth,0+(detail-i)*5,x,y,t)+amount*0.5;
+ if(amount<-1)amount=-1;if(amount>1)amount=1;
+
+ if(super_sample&&pixel_size)
+ {
+ amount2=random(smooth,0+(detail-i)*5,x2,y,t)+amount2*0.5;
+ if(amount2<-1)amount2=-1;if(amount2>1)amount2=1;
+
+ amount3=random(smooth,0+(detail-i)*5,x,y2,t)+amount3*0.5;
+ if(amount3<-1)amount3=-1;if(amount3>1)amount3=1;
+
+ if(turbulent)
+ {
+ amount2=abs(amount2);
+ amount3=abs(amount3);
+ }
+
+ x2*=0.5f;
+ y2*=0.5f;
+ }
+
+ if(do_alpha)
+ {
+ alpha=random(smooth,3+(detail-i)*5,x,y,t)+alpha*0.5;
+ if(alpha<-1)alpha=-1;if(alpha>1)alpha=1;
+ }
+
+ if(turbulent)
+ {
+ amount=abs(amount);
+ alpha=abs(alpha);
+ }
+
+ x*=0.5f;
+ y*=0.5f;
+ //t*=0.5f;
+ }
+
+ if(!turbulent)
+ {
+ amount=amount/2.0f+0.5f;
+ alpha=alpha/2.0f+0.5f;
+
+ if(super_sample&&pixel_size)
+ {
+ amount2=amount2/2.0f+0.5f;
+ amount3=amount3/2.0f+0.5f;
+ }
+ }
+
+ if(super_sample && pixel_size)
+ ret=gradient(amount,max(amount3,max(amount,amount2))-min(amount3,min(amount,amount2)));
+ else
+ ret=gradient(amount);
+
+ if(do_alpha)
+ ret.set_a(ret.get_a()*(alpha));
+ }
+ return ret;
+}
+
+inline float
+Noise::calc_supersample(const synfig::Point &/*x*/, float /*pw*/,float /*ph*/)const
+{
+ return 0.0f;
+}
+
+void
+Noise::set_time(synfig::Context context, synfig::Time t)const
+{
+ curr_time=t;
+ context.set_time(t);
+}
+
+void
+Noise::set_time(synfig::Context context, synfig::Time t, const synfig::Point &point)const
+{
+ curr_time=t;
+ context.set_time(t,point);
+}
+
+synfig::Layer::Handle
+Noise::hit_check(synfig::Context context, const synfig::Point &point)const
+{
+ if(get_blend_method()==Color::BLEND_STRAIGHT && get_amount()>=0.5)
+ return const_cast<Noise*>(this);
+ if(get_amount()==0.0)
+ return context.hit_check(point);
+ if(color_func(point,0,context).get_a()>0.5)
+ return const_cast<Noise*>(this);
+ return false;
+}
+
+bool
+Noise::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(do_alpha);
+ IMPORT(gradient);
+ IMPORT(turbulent);
+ IMPORT(super_sample);
+
+ return Layer_Composite::set_param(param,value);
+}
+
+ValueBase
+Noise::get_param(const String & param)const
+{
+ if(param=="seed")
+ return random.get_seed();
+ EXPORT(size);
+ EXPORT(speed);
+ EXPORT(smooth);
+ EXPORT(detail);
+ EXPORT(do_alpha);
+ EXPORT(gradient);
+ EXPORT(turbulent)
+ EXPORT(super_sample);
+
+ EXPORT_NAME();
+ EXPORT_VERSION();
+
+ return Layer_Composite::get_param(param);
+}
+
+Layer::Vocab
+Noise::get_param_vocab()const
+{
+ Layer::Vocab ret(Layer_Composite::get_param_vocab());
+
+ ret.push_back(ParamDesc("gradient")
+ .set_local_name(_("Gradient"))
+ );
+ ret.push_back(ParamDesc("seed")
+ .set_local_name(_("Random Seed"))
+ );
+ ret.push_back(ParamDesc("size")
+ .set_local_name(_("Size"))
+ );
+ ret.push_back(ParamDesc("smooth")
+ .set_local_name(_("Interpolation"))
+ .set_description(_("What type of interpolation to use"))
+ .set_hint("enum")
+ .add_enum_value(0,"nearest",_("Nearest Neighbor"))
+ .add_enum_value(1,"linear",_("Linear"))
+ .add_enum_value(2,"cosine",_("Cosine"))
+ .add_enum_value(3,"spline",_("Spline"))
+ .add_enum_value(4,"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"))
+ );
+ ret.push_back(ParamDesc("do_alpha")
+ .set_local_name(_("Do Alpha"))
+ );
+ ret.push_back(ParamDesc("super_sample")
+ .set_local_name(_("Super Sampling"))
+ );
+
+ return ret;
+}
+
+Color
+Noise::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());
+}
+
+bool
+Noise::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());
+ float supersampleradius((abs(pw)+abs(ph))*0.5f);
+ if(quality>=8)
+ supersampleradius=0;
+
+ 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,supersampleradius,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,supersampleradius,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;
+}
projects / synfig.git / blobdiff