+++ /dev/null
-/* === S Y N F I G ========================================================= */
-/*! \file bline.cpp
-** \brief Template
-**
-** $Id: plant.cpp,v 1.2 2005/01/13 06:48:39 darco Exp $
-**
-** \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 <synfig/angle.h>
-#include "plant.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>
-
-#include <ETL/calculus>
-#include <ETL/bezier>
-#include <ETL/hermite>
-#include <vector>
-
-#include <synfig/valuenode_bline.h>
-
-#endif
-
-using namespace etl;
-
-/* === M A C R O S ========================================================= */
-
-#define SAMPLES 300
-#define ROUND_END_FACTOR (4)
-#define CUSP_THRESHOLD (0.15)
-#define NO_LOOP_COOKIE synfig::Vector(84951305,7836658)
-#define EPSILON (0.000000001)
-#define CUSP_TANGENT_ADJUST (0.025)
-
-/* === G L O B A L S ======================================================= */
-
-SYNFIG_LAYER_INIT(Plant);
-SYNFIG_LAYER_SET_NAME(Plant,"plant");
-SYNFIG_LAYER_SET_LOCAL_NAME(Plant,_("Plant"));
-SYNFIG_LAYER_SET_CATEGORY(Plant,_("Particle Systems"));
-SYNFIG_LAYER_SET_VERSION(Plant,"0.1");
-SYNFIG_LAYER_SET_CVS_ID(Plant,"$Id: plant.cpp,v 1.2 2005/01/13 06:48:39 darco Exp $");
-
-/* === P R O C E D U R E S ================================================= */
-
-/* === M E T H O D S ======================================================= */
-
-
-Plant::Plant():
- split_angle(Angle::deg(10)),
- gravity(0,-0.1),
- velocity(0.3),
- step(0.01),
- sprouts(10)
-{
- bounding_rect=Rect::zero();
- random_factor=0.2;
- random.set_seed(time(NULL));
-
- bline.push_back(BLinePoint());
- bline.push_back(BLinePoint());
- bline.push_back(BLinePoint());
- bline[0].set_vertex(Point(0,1));
- bline[1].set_vertex(Point(0,-1));
- bline[2].set_vertex(Point(1,0));
- bline[0].set_tangent(bline[1].get_vertex()-bline[2].get_vertex()*0.5f);
- bline[1].set_tangent(bline[2].get_vertex()-bline[0].get_vertex()*0.5f);
- bline[2].set_tangent(bline[0].get_vertex()-bline[1].get_vertex()*0.5f);
- bline[0].set_width(1.0f);
- bline[1].set_width(1.0f);
- bline[2].set_width(1.0f);
- bline_loop=true;
- mass=(0.5);
- splits=5;
- drag=0.1;
- size=0.015;
- sync();
- size_as_alpha=false;
-}
-
-void
-Plant::branch(int n,int depth,float t, float stunt_growth, synfig::Point position,synfig::Vector vel)const
-{
- float next_split((1.0-t)/(splits-depth)+t/*+random_factor*random(40+depth,t*splits,0,0)/splits*/);
- for(;t<next_split;t+=step)
- {
- vel[0]+=gravity[0]*step;
- vel[1]+=gravity[1]*step;
- vel*=(1.0-(drag)*step);
- position[0]+=vel[0]*step;
- position[1]+=vel[1]*step;
-
- particle_list.push_back(Particle(
- position,
- gradient(t)
- ));
- bounding_rect.expand(position);
- }
-
- if(t>=1.0-stunt_growth)return;
-
- synfig::Real sin_v=synfig::Angle::cos(split_angle).get();
- synfig::Real cos_v=synfig::Angle::sin(split_angle).get();
-
- synfig::Vector velocity1(vel[0]*sin_v-vel[1]*cos_v+random_factor*random(2,30+n+depth,t*splits,0.0f,0.0f),vel[0]*cos_v+vel[1]*sin_v+random_factor*random(2,32+n+depth,t*splits,0.0f,0.0f));
- synfig::Vector velocity2(vel[0]*sin_v+vel[1]*cos_v+random_factor*random(2,31+n+depth,t*splits,0.0f,0.0f),-vel[0]*cos_v+vel[1]*sin_v+random_factor*random(2,33+n+depth,t*splits,0.0f,0.0f));
-
- Plant::branch(n,depth+1,t,stunt_growth,position,velocity1);
- Plant::branch(n,depth+1,t,stunt_growth,position,velocity2);
-}
-
-void
-Plant::calc_bounding_rect()const
-{
- std::vector<synfig::BLinePoint>::const_iterator iter,next;
-
- bounding_rect=Rect::zero();
-
- // Bline must have at least 2 points in it
- if(bline.size()<=2)
- return;
-
- next=bline.begin();
-
- if(bline_loop)
- iter=--bline.end();
- else
- iter=next++;
-
- for(;next!=bline.end();iter=next++)
- {
- bounding_rect.expand(iter->get_vertex());
- bounding_rect.expand(next->get_vertex());
- bounding_rect.expand(iter->get_vertex()+iter->get_tangent2()*0.3333333333333);
- bounding_rect.expand(next->get_vertex()-next->get_tangent1()*0.3333333333333);
- bounding_rect.expand(next->get_vertex()+next->get_tangent2()*velocity);
- }
- bounding_rect.expand_x(gravity[0]);
- bounding_rect.expand_y(gravity[1]);
- bounding_rect.expand_x(size);
- bounding_rect.expand_y(size);
-}
-
-void
-Plant::sync()const
-{
- particle_list.clear();
-
- bounding_rect=Rect::zero();
-
- // Bline must have at least 2 points in it
- if(bline.size()<=2)
- return;
-
- std::vector<synfig::BLinePoint>::const_iterator iter,next;
-
- etl::hermite<Vector> curve;
-
- Real step(abs(this->step));
-
- int seg(0);
-
- next=bline.begin();
-
- if(bline_loop)
- iter=--bline.end();
- else
- iter=next++;
-
- for(;next!=bline.end();iter=next++,seg++)
- {
- curve.p1()=iter->get_vertex();
- curve.t1()=iter->get_tangent2();
- curve.p2()=next->get_vertex();
- curve.t2()=next->get_tangent1();
- curve.sync();
- etl::derivative<etl::hermite<Vector> > deriv(curve);
-
- Real f;
- int i(0), b(round_to_int((1.0/step)/(float)sprouts-1));
- if(b<=0)b=1;
- for(f=0.0;f<1.0;f+=step,i++)
- {
- Point point(curve(f));
-
- particle_list.push_back(Particle(
- point,
- gradient(0)
- ));
-
- bounding_rect.expand(point);
-
- Real stunt_growth(random(2,i,f+seg,0.0f,0.0f)/2.0+0.5);
- stunt_growth*=stunt_growth;
-
- Vector branch_velocity(deriv(f).norm()*velocity);
-
- branch_velocity[0]+=random_factor*random(2,1,f*splits,0.0f,0.0f);
- branch_velocity[1]+=random_factor*random(2,2,f*splits,0.0f,0.0f);
-
- if(i%b==0)
- branch(
- i,
- 0,
- 0, // time
- stunt_growth, // stunt growth
- point,branch_velocity
- );
- }
- }
-
- needs_sync_=false;
-}
-
-bool
-Plant::set_param(const String & param, const ValueBase &value)
-{
- if(param=="bline" && value.get_type()==ValueBase::TYPE_LIST)
- {
- bline=value;
- bline_loop=value.get_loop();
- needs_sync_=true;
-
- return true;
- }
- if(param=="seed" && value.same_as(int()))
- {
- random.set_seed(value.get(int()));
- needs_sync_=true;
- return true;
- }
- IMPORT_PLUS(split_angle,needs_sync_=true);
- IMPORT_PLUS(gravity,needs_sync_=true);
- IMPORT_PLUS(gradient,needs_sync_=true);
- IMPORT_PLUS(velocity,needs_sync_=true);
- IMPORT_PLUS(step,needs_sync_=true);
- IMPORT_PLUS(splits,needs_sync_=true);
- IMPORT_PLUS(sprouts,needs_sync_=true);
- IMPORT_PLUS(random_factor,needs_sync_=true);
- IMPORT_PLUS(drag,needs_sync_=true);
- IMPORT(size);
- IMPORT(size_as_alpha);
-
- return Layer_Composite::set_param(param,value);
-}
-/*
-void
-Plant::set_time(Context context, Time time)const
-{
- if(needs_sync==true)
- {
- sync();
- needs_sync_=false;
- }
- //const_cast<Plant*>(this)->sync();
- context.set_time(time);
-}
-
-void
-Plant::set_time(Context context, Time time, Vector pos)const
-{
- if(needs_sync==true)
- {
- sync();
- needs_sync_=false;
- }
- //const_cast<Plant*>(this)->sync();
- context.set_time(time,pos);
-}
-*/
-ValueBase
-Plant::get_param(const String& param)const
-{
- if(param=="seed")
- return random.get_seed();
- EXPORT(bline);
- EXPORT(split_angle);
- EXPORT(gravity);
- EXPORT(velocity);
- EXPORT(step);
- EXPORT(gradient);
- EXPORT(splits);
- EXPORT(sprouts);
- EXPORT(random_factor);
- EXPORT(drag);
- EXPORT(size);
-
- EXPORT(size_as_alpha);
-
- EXPORT_NAME();
- EXPORT_VERSION();
-
- return Layer_Composite::get_param(param);
-}
-
-Layer::Vocab
-Plant::get_param_vocab()const
-{
- Layer::Vocab ret(Layer_Composite::get_param_vocab());
-
- ret.push_back(ParamDesc("bline")
- .set_local_name(_("Vertices"))
- //.set_origin("offset")
- //.set_scalar("width")
- .set_description(_("A list of BLine Points"))
- );
-
- ret.push_back(ParamDesc("gradient")
- .set_local_name(_("Gradient"))
- );
-
- ret.push_back(ParamDesc("split_angle")
- .set_local_name(_("Split Angle"))
- );
-
- ret.push_back(ParamDesc("gravity")
- .set_local_name(_("Gravity"))
- .set_is_distance()
- );
-
- ret.push_back(ParamDesc("velocity")
- .set_local_name(_("Velocity"))
- );
-
- ret.push_back(ParamDesc("size")
- .set_local_name(_("Stem Size"))
- .set_is_distance()
- );
-
- ret.push_back(ParamDesc("size_as_alpha")
- .set_local_name(_("SizeAsAlpha"))
- );
-
- ret.push_back(ParamDesc("step")
- .set_local_name(_("Step"))
- );
-
- ret.push_back(ParamDesc("seed")
- .set_local_name(_("Seed"))
- );
-
- ret.push_back(ParamDesc("splits")
- .set_local_name(_("Splits"))
- );
-
- ret.push_back(ParamDesc("sprouts")
- .set_local_name(_("Sprouts"))
- );
-
- ret.push_back(ParamDesc("random_factor")
- .set_local_name(_("Random Factor"))
- );
-
- ret.push_back(ParamDesc("drag")
- .set_local_name(_("Drag"))
- );
-
-
- return ret;
-}
-
-bool
-Plant::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
-{
- bool ret(context.accelerated_render(surface,quality,renddesc,cb));
- if(is_disabled() || !ret)
- return ret;
-
- Surface dest_surface;
- dest_surface.set_wh(surface->get_w(),surface->get_h());
- dest_surface.clear();
-
- const Point tl(renddesc.get_tl());
- const Point br(renddesc.get_br());
-
- const int w(renddesc.get_w());
- const int h(renddesc.get_h());
-
- // Width and Height of a pixel
- const Real pw = (br[0] - tl[0]) / w;
- const Real ph = (br[1] - tl[1]) / h;
-
- if(needs_sync_==true)
- sync();
-
- std::vector<Particle>::reverse_iterator iter;
- const float size_factor(1);
- float radius(size_factor*size*sqrt(1.0f/(abs(pw)*abs(ph))));
-
- if(radius>1.0f)
- {
- radius*=1.0;
- int x1,y1,x2,y2;
- for(iter=particle_list.rbegin();iter!=particle_list.rend();++iter)
- {
- float radius(radius);
- Color color(iter->color);
- if(size_as_alpha)
- {
- radius*=color.get_a();
- color.set_a(1);
- }
-
- x1=ceil_to_int((iter->point[0]-tl[0])/pw-(radius*0.5));
- y1=ceil_to_int((iter->point[1]-tl[1])/ph-(radius*0.5));
- x2=x1+round_to_int(radius);
- y2=y1+round_to_int(radius);
-
- if(x1>=surface->get_w() || y1>=surface->get_h())
- continue;
-
- if(x2<0 || y2<0)
- continue;
-
- if(x2>=surface->get_w())
- x2=surface->get_w();
- if(y2>=surface->get_h())
- y2=surface->get_h();
-
- if(x1<0)
- x1=0;
- if(y1<0)
- y1=0;
-
- int w(min(round_to_int(radius),x2-x1));
- int h(min(round_to_int(radius),y2-y1));
-
- if(w<=0 || h<=0)
- continue;
-
- Surface::alpha_pen surface_pen(dest_surface.get_pen(x1,y1),1.0f);
-
- dest_surface.fill(color,surface_pen,w,h);
- }
- }
- else
- {
- //radius/=0.01;
- radius*=sqrt(step)*12.0f;
- int x,y;
- float a,b,c,d;
- for(iter=particle_list.rbegin();iter!=particle_list.rend();++iter)
- {
- float radius(radius);
- Color color(iter->color);
- if(size_as_alpha)
- {
- radius*=color.get_a();
- color.set_a(1);
- }
-
- x=floor_to_int((iter->point[0]-tl[0])/pw-0.5f);
- y=floor_to_int((iter->point[1]-tl[1])/ph-0.5f);
-
- if(x>=surface->get_w()-1 || y>=surface->get_h()-1 || x<0 || y<0)
- {
- continue;
- }
-
- a=((iter->point[0]-tl[0])/pw-0.5f-x)*radius;
- b=((iter->point[1]-tl[1])/ph-0.5f-y)*radius;
- c=radius-a;
- d=radius-b;
-
- Surface::alpha_pen surface_pen(dest_surface.get_pen(x,y),1.0f);
-
- surface_pen.set_alpha(c*d);
- surface_pen.put_value(color);
- surface_pen.inc_x();
- surface_pen.set_alpha(a*d);
- surface_pen.put_value(color);
- surface_pen.inc_y();
- surface_pen.set_alpha(a*b);
- surface_pen.put_value(color);
- surface_pen.dec_x();
- surface_pen.set_alpha(c*b);
- surface_pen.put_value(color);
- }
- }
-
- Surface::alpha_pen pen(surface->get_pen(0,0),get_amount(),get_blend_method());
- dest_surface.blit_to(pen);
-
- return true;
-}
-
-Rect
-Plant::get_bounding_rect(Context context)const
-{
- if(needs_sync_==true)
- sync();
-
- if(is_disabled())
- return Rect::zero();
-
- if(Color::is_onto(get_blend_method()))
- return context.get_full_bounding_rect() & bounding_rect;
-
- //if(get_blend_method()==Color::BLEND_BEHIND)
- // return context.get_full_bounding_rect() | bounding_rect;
- return bounding_rect;
-}
projects / synfig.git / blobdiff