synfig-core/trunk/src/modules/mod_noise/distort.cpp

   1 /* === S I N F G =========================================================== */
   2 /*!     \file noise.cpp
   3 **      \brief blehh
   4 **
   5 **      $Id: distort.cpp,v 1.1.1.1 2005/01/04 01:23:14 darco Exp $
   6 **
   7 **      \legal
   8 **      Copyright (c) 2002 Robert B. Quattlebaum Jr.
   9 **
  10 **      This software and associated documentation
  11 **      are CONFIDENTIAL and PROPRIETARY property of
  12 **      the above-mentioned copyright holder.
  13 **
  14 **      You may not copy, print, publish, or in any
  15 **      other way distribute this software without
  16 **      a prior written agreement with
  17 **      the copyright holder.
  18 **      \endlegal
  19 */
  20 /* ========================================================================= */
  21
  22 /* === H E A D E R S ======================================================= */
  23
  24 #ifdef USING_PCH
  25 #       include "pch.h"
  26 #else
  27 #ifdef HAVE_CONFIG_H
  28 #       include <config.h>
  29 #endif
  30
  31 #include "distort.h"
  32
  33 #include <sinfg/string.h>
  34 #include <sinfg/time.h>
  35 #include <sinfg/context.h>
  36 #include <sinfg/paramdesc.h>
  37 #include <sinfg/renddesc.h>
  38 #include <sinfg/surface.h>
  39 #include <sinfg/value.h>
  40 #include <sinfg/valuenode.h>
  41
  42 #endif
  43
  44 /* === M A C R O S ========================================================= */
  45
  46 using namespace sinfg;
  47 using namespace std;
  48 using namespace etl;
  49
  50 /* === G L O B A L S ======================================================= */
  51
  52 SINFG_LAYER_INIT(NoiseDistort);
  53 SINFG_LAYER_SET_NAME(NoiseDistort,"noise_distort");
  54 SINFG_LAYER_SET_LOCAL_NAME(NoiseDistort,_("Noise Distort"));
  55 SINFG_LAYER_SET_CATEGORY(NoiseDistort,_("Distortions"));
  56 SINFG_LAYER_SET_VERSION(NoiseDistort,"0.0");
  57 SINFG_LAYER_SET_CVS_ID(NoiseDistort,"$Id: distort.cpp,v 1.1.1.1 2005/01/04 01:23:14 darco Exp $");
  58
  59 /* === P R O C E D U R E S ================================================= */
  60
  61 /* === M E T H O D S ======================================================= */
  62
  63 NoiseDistort::NoiseDistort():
  64         size(1,1)
  65 {
  66         set_blend_method(Color::BLEND_STRAIGHT);
  67         smooth=2;
  68         detail=4;
  69         speed=0;
  70         random.set_seed(time(NULL));
  71         turbulent=false;
  72         displacement=Vector(0.25,0.25);
  73 }
  74
  75 inline Color
  76 NoiseDistort::color_func(const Point &point, float supersample,Context context)const
  77 {
  78         Color ret(0,0,0,0);
  79
  80         float x(point[0]/size[0]*(1<<detail));
  81         float y(point[1]/size[1]*(1<<detail));
  82
  83         int i;
  84         Time time;
  85         time=speed*curr_time;
  86         int smooth((!speed && smooth==3)?5:smooth);
  87
  88         {
  89                 Vector vect(0,0);
  90                 for(i=0;i<detail;i++)
  91                 {
  92                         vect[0]=random(smooth,0+(detail-i)*5,x,y,time)+vect[0]*0.5;
  93                         vect[1]=random(smooth,1+(detail-i)*5,x,y,time)+vect[1]*0.5;
  94
  95                         if(vect[0]<-1)vect[0]=-1;if(vect[0]>1)vect[0]=1;
  96                         if(vect[1]<-1)vect[1]=-1;if(vect[1]>1)vect[1]=1;
  97
  98                         if(turbulent)
  99                         {
 100                                 vect[0]=abs(vect[0]);
 101                                 vect[1]=abs(vect[1]);
 102                         }
 103
 104                         x/=2.0f;
 105                         y/=2.0f;
 106                 }
 107
 108                 if(!turbulent)
 109                 {
 110                         vect[0]=vect[0]/2.0f+0.5f;
 111                         vect[1]=vect[1]/2.0f+0.5f;
 112                 }
 113                 vect[0]=(vect[0]-0.5f)*displacement[0];
 114                 vect[1]=(vect[1]-0.5f)*displacement[1];
 115
 116                 ret=context.get_color(point+vect);
 117         }
 118         return ret;
 119 }
 120
 121 inline float
 122 NoiseDistort::calc_supersample(const sinfg::Point &x, float pw,float ph)const
 123 {
 124         return 0.0f;
 125 }
 126
 127 void
 128 NoiseDistort::set_time(sinfg::Context context, sinfg::Time t)const
 129 {
 130         curr_time=t;
 131         context.set_time(t);
 132 }
 133
 134 void
 135 NoiseDistort::set_time(sinfg::Context context, sinfg::Time t, const sinfg::Point &point)const
 136 {
 137         curr_time=t;
 138         context.set_time(t,point);
 139 }
 140
 141 sinfg::Layer::Handle
 142 NoiseDistort::hit_check(sinfg::Context context, const sinfg::Point &point)const
 143 {
 144         if(get_blend_method()==Color::BLEND_STRAIGHT && get_amount()>=0.5)
 145                 return const_cast<NoiseDistort*>(this);
 146         if(get_amount()==0.0)
 147                 return context.hit_check(point);
 148         if(color_func(point,0,context).get_a()>0.5)
 149                 return const_cast<NoiseDistort*>(this);
 150         return false;
 151 }
 152
 153 bool
 154 NoiseDistort::set_param(const String & param, const ValueBase &value)
 155 {
 156         if(param=="seed" && value.same_as(int()))
 157         {
 158                 random.set_seed(value.get(int()));
 159                 return true;
 160         }
 161         IMPORT(size);
 162         IMPORT(speed);
 163         IMPORT(smooth);
 164         IMPORT(detail);
 165         IMPORT(turbulent);
 166         IMPORT(displacement);
 167         return Layer_Composite::set_param(param,value);
 168 }
 169
 170 ValueBase
 171 NoiseDistort::get_param(const String & param)const
 172 {
 173         if(param=="seed")
 174                 return random.get_seed();
 175         EXPORT(size);
 176         EXPORT(speed);
 177         EXPORT(smooth);
 178         EXPORT(detail);
 179         EXPORT(displacement);
 180         EXPORT(turbulent);
 181
 182         EXPORT_NAME();
 183         EXPORT_VERSION();
 184
 185         return Layer_Composite::get_param(param);
 186 }
 187
 188 Layer::Vocab
 189 NoiseDistort::get_param_vocab()const
 190 {
 191         Layer::Vocab ret(Layer_Composite::get_param_vocab());
 192
 193         ret.push_back(ParamDesc("displacement")
 194                 .set_local_name(_("Displacement"))
 195         );
 196
 197         ret.push_back(ParamDesc("size")
 198                 .set_local_name(_("Size"))
 199         );
 200         ret.push_back(ParamDesc("seed")
 201                 .set_local_name(_("Random Seed"))
 202         );
 203         ret.push_back(ParamDesc("smooth")
 204                 .set_local_name(_("Interpolation"))
 205                 .set_description(_("What type of interpolation to use"))
 206                 .set_hint("enum")
 207                 .add_enum_value(0,"nearest",_("Nearest Neighbor"))
 208                 .add_enum_value(1,"linear",_("Linear"))
 209                 .add_enum_value(2,"cosine",_("Cosine"))
 210                 .add_enum_value(3,"spline",_("Spline"))
 211                 .add_enum_value(4,"cubic",_("Cubic"))
 212         );
 213         ret.push_back(ParamDesc("detail")
 214                 .set_local_name(_("Detail"))
 215         );
 216         ret.push_back(ParamDesc("speed")
 217                 .set_local_name(_("Animation Speed"))
 218         );
 219         ret.push_back(ParamDesc("turbulent")
 220                 .set_local_name(_("Turbulent"))
 221         );
 222
 223         return ret;
 224 }
 225
 226 Color
 227 NoiseDistort::get_color(Context context, const Point &point)const
 228 {
 229         const Color color(color_func(point,0,context));
 230
 231         if(get_amount()==1.0 && get_blend_method()==Color::BLEND_STRAIGHT)
 232                 return color;
 233         else
 234                 return Color::blend(color,context.get_color(point),get_amount(),get_blend_method());
 235 }
 236
 237 Rect
 238 NoiseDistort::get_bounding_rect(Context context)const
 239 {
 240         if(is_disabled())
 241                 return Rect::zero();
 242
 243         if(Color::is_onto(get_blend_method()))
 244                 return context.get_full_bounding_rect();
 245
 246         Rect bounds(context.get_full_bounding_rect().expand_x(displacement[0]).expand_y(displacement[1]));
 247
 248         return bounds;
 249 }
 250
 251 /*
 252 bool
 253 NoiseDistort::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
 254 {
 255         SuperCallback supercb(cb,0,9500,10000);
 256
 257         if(get_amount()==1.0 && get_blend_method()==Color::BLEND_STRAIGHT)
 258         {
 259                 surface->set_wh(renddesc.get_w(),renddesc.get_h());
 260         }
 261         else
 262         {
 263                 if(!context.accelerated_render(surface,quality,renddesc,&supercb))
 264                         return false;
 265                 if(get_amount()==0)
 266                         return true;
 267         }
 268
 269
 270         int x,y;
 271
 272         Surface::pen pen(surface->begin());
 273         const Real pw(renddesc.get_pw()),ph(renddesc.get_ph());
 274         Point pos;
 275         Point tl(renddesc.get_tl());
 276         const int w(surface->get_w());
 277         const int h(surface->get_h());
 278
 279         if(get_amount()==1.0 && get_blend_method()==Color::BLEND_STRAIGHT)
 280         {
 281                 for(y=0,pos[1]=tl[1];y<h;y++,pen.inc_y(),pen.dec_x(x),pos[1]+=ph)
 282                         for(x=0,pos[0]=tl[0];x<w;x++,pen.inc_x(),pos[0]+=pw)
 283                                 pen.put_value(color_func(pos,calc_supersample(pos,pw,ph),context));
 284         }
 285         else
 286         {
 287                 for(y=0,pos[1]=tl[1];y<h;y++,pen.inc_y(),pen.dec_x(x),pos[1]+=ph)
 288                         for(x=0,pos[0]=tl[0];x<w;x++,pen.inc_x(),pos[0]+=pw)
 289                                 pen.put_value(Color::blend(color_func(pos,calc_supersample(pos,pw,ph),context),pen.get_value(),get_amount(),get_blend_method()));
 290         }
 291
 292         // Mark our progress as finished
 293         if(cb && !cb->amount_complete(10000,10000))
 294                 return false;
 295
 296         return true;
 297 }
 298 */