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
10 ** This package is free software; you can redistribute it and/or
11 ** modify it under the terms of the GNU General Public License as
12 ** published by the Free Software Foundation; either version 2 of
13 ** the License, or (at your option) any later version.
15 ** This package is distributed in the hope that it will be useful,
16 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 ** General Public License for more details.
21 ** === N O T E S ===========================================================
23 ** ========================================================================= */
25 /* === H E A D E R S ======================================================= */
35 #include <synfig/string.h>
36 #include <synfig/time.h>
37 #include <synfig/context.h>
38 #include <synfig/paramdesc.h>
39 #include <synfig/renddesc.h>
40 #include <synfig/surface.h>
41 #include <synfig/value.h>
42 #include <synfig/valuenode.h>
43 #include <synfig/transform.h>
48 /* === M A C R O S ========================================================= */
50 /* === G L O B A L S ======================================================= */
52 SYNFIG_LAYER_INIT(Rotate);
53 SYNFIG_LAYER_SET_NAME(Rotate,"rotate");
54 SYNFIG_LAYER_SET_LOCAL_NAME(Rotate,N_("Rotate"));
55 SYNFIG_LAYER_SET_CATEGORY(Rotate,N_("Transform"));
56 SYNFIG_LAYER_SET_VERSION(Rotate,"0.1");
57 SYNFIG_LAYER_SET_CVS_ID(Rotate,"$Id$");
59 /* === P R O C E D U R E S ================================================= */
61 /* === M E T H O D S ======================================================= */
63 /* === E N T R Y P O I N T ================================================= */
67 amount (Angle::deg(0)),
78 Rotate::set_param(const String & param, const ValueBase &value)
82 if(param=="amount" && value.same_type_as(amount))
84 amount=value.get(amount);
85 sin_val=Angle::sin(amount).get();
86 cos_val=Angle::cos(amount).get();
94 Rotate::get_param(const String ¶m)const
106 Rotate::get_param_vocab()const
110 ret.push_back(ParamDesc("origin")
111 .set_local_name(_("Origin"))
112 .set_description(_("Point where you want the origin to be"))
115 ret.push_back(ParamDesc("amount")
116 .set_local_name(_("Amount"))
117 .set_description(_("Amount of rotation"))
118 .set_origin("origin")
124 class Rotate_Trans : public Transform
126 etl::handle<const Rotate> layer;
128 Rotate_Trans(const Rotate* x):Transform(x->get_guid()),layer(x) { }
130 synfig::Vector perform(const synfig::Vector& x)const
132 Point pos(x-layer->origin);
133 return Point(layer->cos_val*pos[0]-layer->sin_val*pos[1],layer->sin_val*pos[0]+layer->cos_val*pos[1])+layer->origin;
136 synfig::Vector unperform(const synfig::Vector& x)const
138 Point pos(x-layer->origin);
139 return Point(layer->cos_val*pos[0]+layer->sin_val*pos[1],-layer->sin_val*pos[0]+layer->cos_val*pos[1])+layer->origin;
142 etl::handle<Transform>
143 Rotate::get_transform()const
145 return new Rotate_Trans(this);
148 synfig::Layer::Handle
149 Rotate::hit_check(synfig::Context context, const synfig::Point &p)const
152 Point newpos(cos_val*pos[0]+sin_val*pos[1],-sin_val*pos[0]+cos_val*pos[1]);
154 return context.hit_check(newpos);
158 Rotate::get_color(Context context, const Point &p)const
161 Point newpos(cos_val*pos[0]+sin_val*pos[1],-sin_val*pos[0]+cos_val*pos[1]);
163 return context.get_color(newpos);
167 Rotate::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
169 if(amount.dist(Angle::deg(0))==Angle::deg(0))
170 return context.accelerated_render(surface,quality,renddesc,cb);
171 if(amount.dist(Angle::deg(180))==Angle::deg(0))
173 RendDesc desc(renddesc);
176 tmp=renddesc.get_tl()-origin;
177 desc.set_tl(Point(-tmp[0],-tmp[1])+origin);
178 tmp=renddesc.get_br()-origin;
179 desc.set_br(Point(-tmp[0],-tmp[1])+origin);
180 return context.accelerated_render(surface,quality,desc,cb);
183 SuperCallback stageone(cb,0,9000,10000);
184 SuperCallback stagetwo(cb,9000,10000,10000);
186 if(cb && !cb->amount_complete(0,10000))
189 Point tl(renddesc.get_tl()-origin);
190 Point br(renddesc.get_br()-origin);
191 Point rot_tl(cos_val*tl[0]+sin_val*tl[1],-sin_val*tl[0]+cos_val*tl[1]);
192 Point rot_br(cos_val*br[0]+sin_val*br[1],-sin_val*br[0]+cos_val*br[1]);
193 Point rot_tr(cos_val*br[0]+sin_val*tl[1],-sin_val*br[0]+cos_val*tl[1]);
194 Point rot_bl(cos_val*tl[0]+sin_val*br[1],-sin_val*tl[0]+cos_val*br[1]);
200 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]));
201 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]));
224 Real pw=(renddesc.get_w())/(renddesc.get_br()[0]-renddesc.get_tl()[0]);
225 Real ph=(renddesc.get_h())/(renddesc.get_br()[1]-renddesc.get_tl()[1]);
227 RendDesc desc(renddesc);
229 //desc.set_flags(RendDesc::PX_ASPECT);
232 desc.set_wh(round_to_int(pw*(br[0]-tl[0])),round_to_int(ph*(br[1]-tl[1])));
234 //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());
235 //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());
238 source.set_wh(desc.get_w(),desc.get_h());
240 if(!context.accelerated_render(&source,quality,desc,&stageone))
243 surface->set_wh(renddesc.get_w(),renddesc.get_h());
245 Surface::pen pen(surface->begin());
250 int x,y;//,u,v,u2,v2;
252 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)
254 for(x=0,point[0]=renddesc.get_tl()[0];x<surface->get_w();x++,pen.inc_x(),point[0]+=1.0/pw)
256 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;
257 (*surface)[y][x]=source.cubic_sample((tmp[0]-tl[0])*pw,(tmp[1]-tl[1])*ph);
261 if(!stagetwo.amount_complete(y,surface->get_h()))
269 // INTERPOLATION_LINEAR
270 int x,y;//,u,v,u2,v2;
272 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)
274 for(x=0,point[0]=renddesc.get_tl()[0];x<surface->get_w();x++,pen.inc_x(),point[0]+=1.0/pw)
276 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;
277 (*surface)[y][x]=source.linear_sample((tmp[0]-tl[0])*pw,(tmp[1]-tl[1])*ph);
281 if(!stagetwo.amount_complete(y,surface->get_h()))
291 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)
293 for(x=0,point[0]=renddesc.get_tl()[0];x<surface->get_w();x++,pen.inc_x(),point[0]+=1.0/pw)
295 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;
296 u=int((tmp[0]-tl[0])*pw);
297 v=int((tmp[1]-tl[1])*ph);
302 if(u>=source.get_w())
304 if(v>=source.get_h())
306 //pen.set_value(source[v][u]);
307 (*surface)[y][x]=source[v][u];
311 if(!stagetwo.amount_complete(y,surface->get_h()))
317 if(cb && !cb->amount_complete(10000,10000)) return false;
323 Rotate::get_full_bounding_rect(Context context)const
325 Rect under(context.get_full_bounding_rect());
326 return get_transform()->perform(under);