1 /* === S Y N F I G ========================================================= */
3 ** \brief Implementation of the "Rotate" layer
8 ** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
9 ** Copyright (c) 2008 Chris Moore
11 ** This package is free software; you can redistribute it and/or
12 ** modify it under the terms of the GNU General Public License as
13 ** published by the Free Software Foundation; either version 2 of
14 ** the License, or (at your option) any later version.
16 ** This package is distributed in the hope that it will be useful,
17 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 ** General Public License for more details.
22 ** === N O T E S ===========================================================
24 ** ========================================================================= */
26 /* === H E A D E R S ======================================================= */
36 #include <synfig/string.h>
37 #include <synfig/time.h>
38 #include <synfig/context.h>
39 #include <synfig/paramdesc.h>
40 #include <synfig/renddesc.h>
41 #include <synfig/surface.h>
42 #include <synfig/value.h>
43 #include <synfig/valuenode.h>
44 #include <synfig/transform.h>
49 /* === M A C R O S ========================================================= */
51 /* === G L O B A L S ======================================================= */
53 SYNFIG_LAYER_INIT(Rotate);
54 SYNFIG_LAYER_SET_NAME(Rotate,"rotate");
55 SYNFIG_LAYER_SET_LOCAL_NAME(Rotate,N_("Rotate"));
56 SYNFIG_LAYER_SET_CATEGORY(Rotate,N_("Transform"));
57 SYNFIG_LAYER_SET_VERSION(Rotate,"0.1");
58 SYNFIG_LAYER_SET_CVS_ID(Rotate,"$Id$");
60 /* === P R O C E D U R E S ================================================= */
62 /* === M E T H O D S ======================================================= */
64 /* === E N T R Y P O I N T ================================================= */
68 amount (Angle::deg(0)),
72 Layer::Vocab voc(get_param_vocab());
73 Layer::fill_static(voc);
81 Rotate::set_param(const String & param, const ValueBase &value)
85 if(param=="amount" && value.same_type_as(amount))
87 amount=value.get(amount);
88 sin_val=Angle::sin(amount).get();
89 cos_val=Angle::cos(amount).get();
90 set_param_static(param, value.get_static());
98 Rotate::get_param(const String ¶m)const
110 Rotate::get_param_vocab()const
114 ret.push_back(ParamDesc("origin")
115 .set_local_name(_("Origin"))
116 .set_description(_("Point where you want the origin to be"))
119 ret.push_back(ParamDesc("amount")
120 .set_local_name(_("Amount"))
121 .set_description(_("Amount of rotation"))
122 .set_origin("origin")
128 class Rotate_Trans : public Transform
130 etl::handle<const Rotate> layer;
132 Rotate_Trans(const Rotate* x):Transform(x->get_guid()),layer(x) { }
134 synfig::Vector perform(const synfig::Vector& x)const
136 Point pos(x-layer->origin);
137 return Point(layer->cos_val*pos[0]-layer->sin_val*pos[1],layer->sin_val*pos[0]+layer->cos_val*pos[1])+layer->origin;
140 synfig::Vector unperform(const synfig::Vector& x)const
142 Point pos(x-layer->origin);
143 return Point(layer->cos_val*pos[0]+layer->sin_val*pos[1],-layer->sin_val*pos[0]+layer->cos_val*pos[1])+layer->origin;
146 etl::handle<Transform>
147 Rotate::get_transform()const
149 return new Rotate_Trans(this);
152 synfig::Layer::Handle
153 Rotate::hit_check(synfig::Context context, const synfig::Point &p)const
156 Point newpos(cos_val*pos[0]+sin_val*pos[1],-sin_val*pos[0]+cos_val*pos[1]);
158 return context.hit_check(newpos);
162 Rotate::get_color(Context context, const Point &p)const
165 Point newpos(cos_val*pos[0]+sin_val*pos[1],-sin_val*pos[0]+cos_val*pos[1]);
167 return context.get_color(newpos);
171 Rotate::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
173 if(amount.dist(Angle::deg(0))==Angle::deg(0))
174 return context.accelerated_render(surface,quality,renddesc,cb);
175 if(amount.dist(Angle::deg(180))==Angle::deg(0))
177 RendDesc desc(renddesc);
180 tmp=renddesc.get_tl()-origin;
181 desc.set_tl(Point(-tmp[0],-tmp[1])+origin);
182 tmp=renddesc.get_br()-origin;
183 desc.set_br(Point(-tmp[0],-tmp[1])+origin);
184 return context.accelerated_render(surface,quality,desc,cb);
187 SuperCallback stageone(cb,0,9000,10000);
188 SuperCallback stagetwo(cb,9000,10000,10000);
190 if(cb && !cb->amount_complete(0,10000))
193 Point tl(renddesc.get_tl()-origin);
194 Point br(renddesc.get_br()-origin);
197 Point rot_tl(cos_val*tl[0]+sin_val*tl[1],-sin_val*tl[0]+cos_val*tl[1]);
198 Point rot_br(cos_val*br[0]+sin_val*br[1],-sin_val*br[0]+cos_val*br[1]);
199 Point rot_tr(cos_val*br[0]+sin_val*tl[1],-sin_val*br[0]+cos_val*tl[1]);
200 Point rot_bl(cos_val*tl[0]+sin_val*br[1],-sin_val*tl[0]+cos_val*br[1]);
206 Point min_point(min(min(min(rot_tl[0],rot_br[0]),rot_tr[0]),rot_bl[0]),min(min(min(rot_tl[1],rot_br[1]),rot_tr[1]),rot_bl[1]));
207 Point max_point(max(max(max(rot_tl[0],rot_br[0]),rot_tr[0]),rot_bl[0]),max(max(max(rot_tl[1],rot_br[1]),rot_tr[1]),rot_bl[1]));
231 Real pw=(renddesc.get_w())/(renddesc.get_br()[0]-renddesc.get_tl()[0]);
232 Real ph=(renddesc.get_h())/(renddesc.get_br()[1]-renddesc.get_tl()[1]);
234 // we're going to round the canvas size to an integer number of pixels, so round the
235 // tl-br rectangle accordingly - otherwise we see the jittering described in bug 2152666
236 br[0] -= (pw*(br[0]-tl[0]) - round_to_int(pw*(br[0]-tl[0]))) / pw;
237 br[1] -= (ph*(br[1]-tl[1]) - round_to_int(ph*(br[1]-tl[1]))) / ph;
239 RendDesc desc(renddesc);
241 //desc.set_flags(RendDesc::PX_ASPECT);
244 desc.set_wh(round_to_int(pw*(br[0]-tl[0])),round_to_int(ph*(br[1]-tl[1])));
246 //synfig::warning("given window: [%f,%f]-[%f,%f] %dx%d",renddesc.get_tl()[0],renddesc.get_tl()[1],renddesc.get_br()[0],renddesc.get_br()[1],renddesc.get_w(),renddesc.get_h());
247 //synfig::warning("surface to render: [%f,%f]-[%f,%f] %dx%d",desc.get_tl()[0],desc.get_tl()[1],desc.get_br()[0],desc.get_br()[1],desc.get_w(),desc.get_h());
250 source.set_wh(desc.get_w(),desc.get_h());
252 if(!context.accelerated_render(&source,quality,desc,&stageone))
255 surface->set_wh(renddesc.get_w(),renddesc.get_h());
257 Surface::pen pen(surface->begin());
262 int x,y;//,u,v,u2,v2;
264 for(y=0,point[1]=renddesc.get_tl()[1];y<surface->get_h();y++,pen.inc_y(),pen.dec_x(x),point[1]+=1.0/ph)
266 for(x=0,point[0]=renddesc.get_tl()[0];x<surface->get_w();x++,pen.inc_x(),point[0]+=1.0/pw)
268 tmp=Point(cos_val*(point[0]-origin[0])+sin_val*(point[1]-origin[1]),-sin_val*(point[0]-origin[0])+cos_val*(point[1]-origin[1])) +origin;
269 (*surface)[y][x]=source.cubic_sample((tmp[0]-tl[0])*pw,(tmp[1]-tl[1])*ph);
273 if(!stagetwo.amount_complete(y,surface->get_h()))
281 // INTERPOLATION_LINEAR
282 int x,y;//,u,v,u2,v2;
284 for(y=0,point[1]=renddesc.get_tl()[1];y<surface->get_h();y++,pen.inc_y(),pen.dec_x(x),point[1]+=1.0/ph)
286 for(x=0,point[0]=renddesc.get_tl()[0];x<surface->get_w();x++,pen.inc_x(),point[0]+=1.0/pw)
288 tmp=Point(cos_val*(point[0]-origin[0])+sin_val*(point[1]-origin[1]),-sin_val*(point[0]-origin[0])+cos_val*(point[1]-origin[1])) +origin;
289 (*surface)[y][x]=source.linear_sample((tmp[0]-tl[0])*pw,(tmp[1]-tl[1])*ph);
293 if(!stagetwo.amount_complete(y,surface->get_h()))
303 for(y=0,point[1]=renddesc.get_tl()[1];y<surface->get_h();y++,pen.inc_y(),pen.dec_x(x),point[1]+=1.0/ph)
305 for(x=0,point[0]=renddesc.get_tl()[0];x<surface->get_w();x++,pen.inc_x(),point[0]+=1.0/pw)
307 tmp=Point(cos_val*(point[0]-origin[0])+sin_val*(point[1]-origin[1]),-sin_val*(point[0]-origin[0])+cos_val*(point[1]-origin[1])) +origin;
308 u=int((tmp[0]-tl[0])*pw);
309 v=int((tmp[1]-tl[1])*ph);
314 if(u>=source.get_w())
316 if(v>=source.get_h())
318 //pen.set_value(source[v][u]);
319 (*surface)[y][x]=source[v][u];
323 if(!stagetwo.amount_complete(y,surface->get_h()))
329 if(cb && !cb->amount_complete(10000,10000)) return false;
335 Rotate::get_full_bounding_rect(Context context)const
337 Rect under(context.get_full_bounding_rect());
338 return get_transform()->perform(under);