1 /* === S I N F G =========================================================== */
2 /*! \file halftone3.cpp
5 ** $Id: halftone3.cpp,v 1.1.1.1 2005/01/04 01:23:10 darco Exp $
8 ** Copyright (c) 2002 Robert B. Quattlebaum Jr.
10 ** This software and associated documentation
11 ** are CONFIDENTIAL and PROPRIETARY property of
12 ** the above-mentioned copyright holder.
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.
20 /* ========================================================================= */
22 /* === H E A D E R S ======================================================= */
31 #include "halftone3.h"
34 #include <sinfg/string.h>
35 #include <sinfg/time.h>
36 #include <sinfg/context.h>
37 #include <sinfg/paramdesc.h>
38 #include <sinfg/renddesc.h>
39 #include <sinfg/surface.h>
40 #include <sinfg/value.h>
41 #include <sinfg/valuenode.h>
45 /* === M A C R O S ========================================================= */
47 using namespace sinfg;
51 /* === G L O B A L S ======================================================= */
53 SINFG_LAYER_INIT(Halftone3);
54 SINFG_LAYER_SET_NAME(Halftone3,"halftone3");
55 SINFG_LAYER_SET_LOCAL_NAME(Halftone3,_("Halftone3"));
56 SINFG_LAYER_SET_CATEGORY(Halftone3,_("Filters"));
57 SINFG_LAYER_SET_VERSION(Halftone3,"0.0");
58 SINFG_LAYER_SET_CVS_ID(Halftone3,"$Id: halftone3.cpp,v 1.1.1.1 2005/01/04 01:23:10 darco Exp $");
60 /* === P R O C E D U R E S ================================================= */
62 #define HALFSQRT2 (0.7)
63 #define SQRT2 (1.414213562f)
65 /* === M E T H O D S ======================================================= */
67 Halftone3::Halftone3()
69 size=(sinfg::Vector(0.25,0.25));
76 tone[i].offset=(sinfg::Point(0,0));
77 tone[i].angle=Angle::deg(30.0)*(float)i;
84 color[0]=Color::cyan();
85 color[1]=Color::magenta();
86 color[2]=Color::yellow();
90 color[0]=Color::red();
91 color[1]=Color::green();
92 color[2]=Color::blue();
95 set_blend_method(Color::BLEND_STRAIGHT);
99 inverse_matrix[i][j]=(j==i)?1.0f:0.0f;
113 #define matrix inverse_matrix
114 //float matrix[3][3];
120 matrix[i][0]=1.0f-(color[i].get_r());
121 matrix[i][1]=1.0f-(color[i].get_g());
122 matrix[i][2]=1.0f-(color[i].get_b());
123 float mult=sqrt(matrix[i][0]*matrix[i][0]+matrix[i][1]*matrix[i][1]+matrix[i][2]*matrix[i][2]);
139 matrix[i][0]=color[i].get_r();
140 matrix[i][1]=color[i].get_g();
141 matrix[i][2]=color[i].get_b();
142 float mult=sqrt(matrix[i][0]*matrix[i][0]+matrix[i][1]*matrix[i][1]+matrix[i][2]*matrix[i][2]);
159 // Insert guass-jordan elimination code here
160 int k=0,i=0,j=0,z_size=3;
161 #define A inverse_matrix
163 for (k=0;k<z_size;k++)
165 { A[k][k]= -1/A[k][k];
168 for (i=0;i<z_size;i++)
169 if (i!=k) A[i][k]*=A[k][k];
171 //elements not in a pivot row or column
172 for (i=0;i<z_size;i++)
174 for (j=0;j<z_size;j++)
176 A[i][j]+=A[i][k]*A[k][j];
178 //elements in a pivot row
179 for (i=0;i<z_size;i++)
185 for (i=0;i<z_size;i++) /*reverse sign*/
186 for (j=0;j<z_size;j++)
193 Halftone3::color_func(const Point &point, float supersample,const Color& in_color)const
202 chan[0]=inverse_matrix[0][0]*(1.0f-in_color.get_r())+inverse_matrix[0][1]*(1.0f-in_color.get_g())+inverse_matrix[0][2]*(1.0f-in_color.get_b());
203 chan[1]=inverse_matrix[1][0]*(1.0f-in_color.get_r())+inverse_matrix[1][1]*(1.0f-in_color.get_g())+inverse_matrix[1][2]*(1.0f-in_color.get_b());
204 chan[2]=inverse_matrix[2][0]*(1.0f-in_color.get_r())+inverse_matrix[2][1]*(1.0f-in_color.get_g())+inverse_matrix[2][2]*(1.0f-in_color.get_b());
206 halfcolor=Color::white();
207 halfcolor-=(~color[0])*tone[0](point,chan[0],supersample);
208 halfcolor-=(~color[1])*tone[1](point,chan[1],supersample);
209 halfcolor-=(~color[2])*tone[2](point,chan[2],supersample);
211 halfcolor.set_a(in_color.get_a());
215 chan[0]=inverse_matrix[0][0]*in_color.get_r()+inverse_matrix[0][1]*in_color.get_g()+inverse_matrix[0][2]*in_color.get_b();
216 chan[1]=inverse_matrix[1][0]*in_color.get_r()+inverse_matrix[1][1]*in_color.get_g()+inverse_matrix[1][2]*in_color.get_b();
217 chan[2]=inverse_matrix[2][0]*in_color.get_r()+inverse_matrix[2][1]*in_color.get_g()+inverse_matrix[2][2]*in_color.get_b();
219 halfcolor=Color::black();
220 halfcolor+=color[0]*tone[0](point,chan[0],supersample);
221 halfcolor+=color[1]*tone[1](point,chan[1],supersample);
222 halfcolor+=color[2]*tone[2](point,chan[2],supersample);
224 halfcolor.set_a(in_color.get_a());
231 Halftone3::calc_supersample(const sinfg::Point &x, float pw,float ph)const
233 return abs(pw/(tone[0].size).mag());
237 Halftone3::hit_check(sinfg::Context context, const sinfg::Point &point)const
239 return const_cast<Halftone3*>(this);
243 Halftone3::set_param(const String & param, const ValueBase &value)
245 IMPORT_PLUS(size, {tone[0].size=size; tone[1].size=size; tone[2].size=size;});
246 IMPORT_PLUS(type, {tone[0].type=type; tone[1].type=type; tone[2].type=type;});
248 IMPORT_PLUS(color[0],sync());
249 IMPORT_PLUS(color[1],sync());
250 IMPORT_PLUS(color[2],sync());
252 IMPORT_PLUS(subtractive,sync());
254 IMPORT(tone[0].angle);
255 IMPORT(tone[0].offset);
257 IMPORT(tone[1].angle);
258 IMPORT(tone[1].offset);
260 IMPORT(tone[2].angle);
261 IMPORT(tone[2].offset);
263 return Layer_Composite::set_param(param,value);
267 Halftone3::get_param(const String & param)const
278 EXPORT(tone[0].angle);
279 EXPORT(tone[0].offset);
281 EXPORT(tone[1].angle);
282 EXPORT(tone[1].offset);
284 EXPORT(tone[2].angle);
285 EXPORT(tone[2].offset);
290 return Layer_Composite::get_param(param);
294 Halftone3::get_param_vocab()const
296 Layer::Vocab ret(Layer_Composite::get_param_vocab());
298 ret.push_back(ParamDesc("size")
299 .set_local_name(_("Mask Size"))
301 ret.push_back(ParamDesc("type")
302 .set_local_name(_(" Type"))
304 .add_enum_value(TYPE_SYMMETRIC,"symmetric",_("Symmetric"))
305 .add_enum_value(TYPE_LIGHTONDARK,"lightondark",_("Light On Dark"))
306 //.add_enum_value(TYPE_DARKONLIGHT,"darkonlight",_("Dark on Light"))
307 .add_enum_value(TYPE_DIAMOND,"diamond",_("Diamond"))
308 .add_enum_value(TYPE_STRIPE,"stripe",_("Stripe"))
310 ret.push_back(ParamDesc("subtractive")
311 .set_local_name(_("Subtractive Flag"))
316 String chan_name(strprintf("Chan%d",i));
318 ret.push_back(ParamDesc(strprintf("color[%d]",i))
319 .set_local_name(chan_name+_(" Color"))
322 ret.push_back(ParamDesc(strprintf("tone[%d].offset",i))
323 .set_local_name(chan_name+_(" Mask Offset"))
326 ret.push_back(ParamDesc(strprintf("tone[%d].angle",i))
327 .set_local_name(chan_name+_(" Mask Angle"))
328 .set_origin(strprintf("tone[%d].offset",i))
336 Halftone3::get_color(Context context, const Point &point)const
338 const Color undercolor(context.get_color(point));
339 const Color color(color_func(point,0,undercolor));
341 if(get_amount()==1.0 && get_blend_method()==Color::BLEND_STRAIGHT)
344 return Color::blend(color,undercolor,get_amount(),get_blend_method());
348 Halftone3::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
350 SuperCallback supercb(cb,0,9500,10000);
352 if(!context.accelerated_render(surface,quality,renddesc,&supercb))
357 const Real pw(renddesc.get_pw()),ph(renddesc.get_ph());
358 const Point tl(renddesc.get_tl());
359 const int w(surface->get_w());
360 const int h(surface->get_h());
361 const float supersample_size(abs(pw/(tone[0].size).mag()));
363 Surface::pen pen(surface->begin());
369 for(y=0,pos[1]=tl[1];y<h;y++,pen.inc_y(),pen.dec_x(x),pos[1]+=ph)
370 for(x=0,pos[0]=tl[0];x<w;x++,pen.inc_x(),pos[0]+=pw)
381 for(y=0,pos[1]=tl[1];y<h;y++,pen.inc_y(),pen.dec_x(x),pos[1]+=ph)
382 for(x=0,pos[0]=tl[0];x<w;x++,pen.inc_x(),pos[0]+=pw)
397 // Mark our progress as finished
398 if(cb && !cb->amount_complete(10000,10000))