/* === S Y N F I G ========================================================= */
/*! \file noise.cpp
** \brief Implementation of the "Noise Gradient" layer
**
** $Id$
**
** \legal
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
** Copyright (c) 2007 Chris Moore
** Copyright (c) 2011-2013 Carlos López
**
** 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/localization.h>
#include <synfig/general.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 <time.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,N_("Noise Gradient"));
SYNFIG_LAYER_SET_CATEGORY(Noise,N_("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():
Layer_Composite(1.0,Color::BLEND_COMPOSITE),
param_gradient(ValueBase(Gradient(Color::black(), Color::white()))),
param_random(ValueBase(int(time(NULL)))),
param_size(ValueBase(Vector(1,1))),
param_smooth(ValueBase(int(RandomNoise::SMOOTH_COSINE))),
param_detail(ValueBase(int(4))),
param_speed(ValueBase(Real(0))),
param_turbulent(ValueBase(bool(false))),
param_do_alpha(ValueBase(bool(false))),
param_super_sample(ValueBase(bool(false)))
{
//displacement=Vector(1,1);
//do_displacement=false;
SET_INTERPOLATION_DEFAULTS();
SET_STATIC_DEFAULTS();
}
void
Noise::compile()
{ compiled_gradient.set(param_gradient.get(Gradient()) ); }
inline Color
Noise::color_func(const Point &point, float pixel_size,Context /*context*/)const
{
Vector size=param_size.get(Vector());
RandomNoise random;
random.set_seed(param_random.get(int()));
int smooth_=param_smooth.get(int());
int detail=param_detail.get(int());
Real speed=param_speed.get(Real());
bool turbulent=param_turbulent.get(bool());
bool do_alpha=param_do_alpha.get(bool());
bool super_sample=param_super_sample.get(bool());
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*get_time_mark();
int smooth((!speed && smooth_ == (int)RandomNoise::SMOOTH_SPLINE) ? (int)RandomNoise::SMOOTH_FAST_SPLINE : smooth_);
float ftime(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(RandomNoise::SmoothType(smooth),0+(detail-i)*5,x,y,ftime)+amount*0.5;
if(amount<-1)amount=-1;if(amount>1)amount=1;
if(super_sample&&pixel_size)
{
amount2=random(RandomNoise::SmoothType(smooth),0+(detail-i)*5,x2,y,ftime)+amount2*0.5;
if(amount2<-1)amount2=-1;if(amount2>1)amount2=1;
amount3=random(RandomNoise::SmoothType(smooth),0+(detail-i)*5,x,y2,ftime)+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(RandomNoise::SmoothType(smooth),3+(detail-i)*5,x,y,ftime)+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;
//ftime*=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) {
Real da = max(amount3, max(amount,amount2)) - min(amount3, min(amount,amount2));
ret = compiled_gradient.average(amount - da, amount + da);
} else {
ret = compiled_gradient.color(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;
}
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 synfig::Layer::Handle();
}
bool
Noise::set_param(const String & param, const ValueBase &value)
{
IMPORT_VALUE_PLUS(param_gradient, compile());
IMPORT_VALUE(param_size);
IMPORT_VALUE(param_random);
IMPORT_VALUE(param_detail);
IMPORT_VALUE(param_smooth);
IMPORT_VALUE(param_speed);
IMPORT_VALUE(param_turbulent);
IMPORT_VALUE(param_do_alpha);
IMPORT_VALUE(param_super_sample);
if(param=="seed")
return set_param("random", value);
return Layer_Composite::set_param(param,value);
}
ValueBase
Noise::get_param(const String & param)const
{
EXPORT_VALUE(param_gradient);
EXPORT_VALUE(param_size);
EXPORT_VALUE(param_random);
EXPORT_VALUE(param_detail);
EXPORT_VALUE(param_smooth);
EXPORT_VALUE(param_speed);
EXPORT_VALUE(param_turbulent);
EXPORT_VALUE(param_do_alpha);
EXPORT_VALUE(param_super_sample);
if(param=="seed")
return get_param("random");
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"))
.set_description(_("Gradient to apply"))
);
ret.push_back(ParamDesc("seed")
.set_local_name(_("RandomNoise Seed"))
.set_description(_("Change to modify the random seed of the noise"))
);
ret.push_back(ParamDesc("size")
.set_local_name(_("Size"))
.set_description(_("Size of the noise"))
);
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"))
.set_description(_("Increase to obtain fine details of the noise"))
);
ret.push_back(ParamDesc("speed")
.set_local_name(_("Animation Speed"))
.set_description(_("In cycles per second"))
);
ret.push_back(ParamDesc("turbulent")
.set_local_name(_("Turbulent"))
.set_description(_("When checked produces turbulent noise"))
);
ret.push_back(ParamDesc("do_alpha")
.set_local_name(_("Do Alpha"))
.set_description(_("Uses transparency"))
);
ret.push_back(ParamDesc("super_sample")
.set_local_name(_("Super Sampling"))
.set_description(_("When checked the gradient is supersampled"))
);
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());
}
CairoColor
Noise::get_cairocolor(Context context, const Point &point)const
{
const CairoColor color(color_func(point,0,context));
if(get_amount()==1.0 && get_blend_method()==Color::BLEND_STRAIGHT)
return color;
else
return CairoColor::blend(color,context.get_cairocolor(point),get_amount(),get_blend_method());
}
bool
Noise::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
{
RENDER_TRANSFORMED_IF_NEED(__FILE__, __LINE__)
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;
}