--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file rotate.cpp
+** \brief Implementation of the "Rotate" layer
+**
+** $Id$
+**
+** \legal
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+** Copyright (c) 2008 Chris Moore
+**
+** 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
+**
+** === N O T E S ===========================================================
+**
+** ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+# include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "rotate.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 <synfig/transform.h>
+#include <ETL/misc>
+
+#endif
+
+/* === M A C R O S ========================================================= */
+
+/* === G L O B A L S ======================================================= */
+
+SYNFIG_LAYER_INIT(Rotate);
+SYNFIG_LAYER_SET_NAME(Rotate,"rotate");
+SYNFIG_LAYER_SET_LOCAL_NAME(Rotate,N_("Rotate"));
+SYNFIG_LAYER_SET_CATEGORY(Rotate,N_("Transform"));
+SYNFIG_LAYER_SET_VERSION(Rotate,"0.1");
+SYNFIG_LAYER_SET_CVS_ID(Rotate,"$Id$");
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+/* === E N T R Y P O I N T ================================================= */
+
+Rotate::Rotate():
+ origin (0,0),
+ amount (Angle::deg(0)),
+ sin_val (0),
+ cos_val (1)
+{
+}
+
+Rotate::~Rotate()
+{
+}
+
+bool
+Rotate::set_param(const String & param, const ValueBase &value)
+{
+ IMPORT(origin);
+
+ if(param=="amount" && value.same_type_as(amount))
+ {
+ amount=value.get(amount);
+ sin_val=Angle::sin(amount).get();
+ cos_val=Angle::cos(amount).get();
+ return true;
+ }
+
+ return false;
+}
+
+ValueBase
+Rotate::get_param(const String ¶m)const
+{
+ EXPORT(origin);
+ EXPORT(amount);
+
+ EXPORT_NAME();
+ EXPORT_VERSION();
+
+ return ValueBase();
+}
+
+Layer::Vocab
+Rotate::get_param_vocab()const
+{
+ Layer::Vocab ret;
+
+ ret.push_back(ParamDesc("origin")
+ .set_local_name(_("Origin"))
+ .set_description(_("Point where you want the origin to be"))
+ );
+
+ ret.push_back(ParamDesc("amount")
+ .set_local_name(_("Amount"))
+ .set_description(_("Amount of rotation"))
+ .set_origin("origin")
+ );
+
+ return ret;
+}
+
+class Rotate_Trans : public Transform
+{
+ etl::handle<const Rotate> layer;
+public:
+ Rotate_Trans(const Rotate* x):Transform(x->get_guid()),layer(x) { }
+
+ synfig::Vector perform(const synfig::Vector& x)const
+ {
+ Point pos(x-layer->origin);
+ return Point(layer->cos_val*pos[0]-layer->sin_val*pos[1],layer->sin_val*pos[0]+layer->cos_val*pos[1])+layer->origin;
+ }
+
+ synfig::Vector unperform(const synfig::Vector& x)const
+ {
+ Point pos(x-layer->origin);
+ return Point(layer->cos_val*pos[0]+layer->sin_val*pos[1],-layer->sin_val*pos[0]+layer->cos_val*pos[1])+layer->origin;
+ }
+};
+etl::handle<Transform>
+Rotate::get_transform()const
+{
+ return new Rotate_Trans(this);
+}
+
+synfig::Layer::Handle
+Rotate::hit_check(synfig::Context context, const synfig::Point &p)const
+{
+ Point pos(p-origin);
+ Point newpos(cos_val*pos[0]+sin_val*pos[1],-sin_val*pos[0]+cos_val*pos[1]);
+ newpos+=origin;
+ return context.hit_check(newpos);
+}
+
+Color
+Rotate::get_color(Context context, const Point &p)const
+{
+ Point pos(p-origin);
+ Point newpos(cos_val*pos[0]+sin_val*pos[1],-sin_val*pos[0]+cos_val*pos[1]);
+ newpos+=origin;
+ return context.get_color(newpos);
+}
+
+bool
+Rotate::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
+{
+ if(amount.dist(Angle::deg(0))==Angle::deg(0))
+ return context.accelerated_render(surface,quality,renddesc,cb);
+ if(amount.dist(Angle::deg(180))==Angle::deg(0))
+ {
+ RendDesc desc(renddesc);
+ desc.clear_flags();
+ Point tmp;
+ tmp=renddesc.get_tl()-origin;
+ desc.set_tl(Point(-tmp[0],-tmp[1])+origin);
+ tmp=renddesc.get_br()-origin;
+ desc.set_br(Point(-tmp[0],-tmp[1])+origin);
+ return context.accelerated_render(surface,quality,desc,cb);
+ }
+
+ SuperCallback stageone(cb,0,9000,10000);
+ SuperCallback stagetwo(cb,9000,10000,10000);
+
+ if(cb && !cb->amount_complete(0,10000))
+ return false;
+
+ Point tl(renddesc.get_tl()-origin);
+ Point br(renddesc.get_br()-origin);
+
+ {
+ Point rot_tl(cos_val*tl[0]+sin_val*tl[1],-sin_val*tl[0]+cos_val*tl[1]);
+ Point rot_br(cos_val*br[0]+sin_val*br[1],-sin_val*br[0]+cos_val*br[1]);
+ Point rot_tr(cos_val*br[0]+sin_val*tl[1],-sin_val*br[0]+cos_val*tl[1]);
+ Point rot_bl(cos_val*tl[0]+sin_val*br[1],-sin_val*tl[0]+cos_val*br[1]);
+ rot_tl+=origin;
+ rot_br+=origin;
+ rot_tr+=origin;
+ rot_bl+=origin;
+
+ 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]));
+ 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]));
+
+ if(tl[0]>br[0])
+ {
+ tl[0]=max_point[0];
+ br[0]=min_point[0];
+ }
+ else
+ {
+ br[0]=max_point[0];
+ tl[0]=min_point[0];
+ }
+ if(tl[1]>br[1])
+ {
+ tl[1]=max_point[1];
+ br[1]=min_point[1];
+ }
+ else
+ {
+ br[1]=max_point[1];
+ tl[1]=min_point[1];
+ }
+ }
+
+ Real pw=(renddesc.get_w())/(renddesc.get_br()[0]-renddesc.get_tl()[0]);
+ Real ph=(renddesc.get_h())/(renddesc.get_br()[1]-renddesc.get_tl()[1]);
+
+ // we're going to round the canvas size to an integer number of pixels, so round the
+ // tl-br rectangle accordingly - otherwise we see the jittering described in bug 2152666
+ br[0] -= (pw*(br[0]-tl[0]) - round_to_int(pw*(br[0]-tl[0]))) / pw;
+ br[1] -= (ph*(br[1]-tl[1]) - round_to_int(ph*(br[1]-tl[1]))) / ph;
+
+ RendDesc desc(renddesc);
+ desc.clear_flags();
+ //desc.set_flags(RendDesc::PX_ASPECT);
+ desc.set_tl(tl);
+ desc.set_br(br);
+ desc.set_wh(round_to_int(pw*(br[0]-tl[0])),round_to_int(ph*(br[1]-tl[1])));
+
+ //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());
+ //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());
+
+ Surface source;
+ source.set_wh(desc.get_w(),desc.get_h());
+
+ if(!context.accelerated_render(&source,quality,desc,&stageone))
+ return false;
+
+ surface->set_wh(renddesc.get_w(),renddesc.get_h());
+
+ Surface::pen pen(surface->begin());
+
+ if(quality<=4)
+ {
+ // CUBIC
+ int x,y;//,u,v,u2,v2;
+ Point point,tmp;
+ 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)
+ {
+ for(x=0,point[0]=renddesc.get_tl()[0];x<surface->get_w();x++,pen.inc_x(),point[0]+=1.0/pw)
+ {
+ 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;
+ (*surface)[y][x]=source.cubic_sample((tmp[0]-tl[0])*pw,(tmp[1]-tl[1])*ph);
+ }
+ if((y&31)==0 && cb)
+ {
+ if(!stagetwo.amount_complete(y,surface->get_h()))
+ return false;
+ }
+ }
+ }
+ else
+ if(quality<=6)
+ {
+ // INTERPOLATION_LINEAR
+ int x,y;//,u,v,u2,v2;
+ Point point,tmp;
+ 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)
+ {
+ for(x=0,point[0]=renddesc.get_tl()[0];x<surface->get_w();x++,pen.inc_x(),point[0]+=1.0/pw)
+ {
+ 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;
+ (*surface)[y][x]=source.linear_sample((tmp[0]-tl[0])*pw,(tmp[1]-tl[1])*ph);
+ }
+ if((y&31)==0 && cb)
+ {
+ if(!stagetwo.amount_complete(y,surface->get_h()))
+ return false;
+ }
+ }
+ }
+ else
+ {
+ // NEAREST_NEIGHBOR
+ int x,y,u,v;
+ Point point,tmp;
+ 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)
+ {
+ for(x=0,point[0]=renddesc.get_tl()[0];x<surface->get_w();x++,pen.inc_x(),point[0]+=1.0/pw)
+ {
+ 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;
+ u=int((tmp[0]-tl[0])*pw);
+ v=int((tmp[1]-tl[1])*ph);
+ if(u<0)
+ u=0;
+ if(v<0)
+ v=0;
+ if(u>=source.get_w())
+ u=source.get_w()-1;
+ if(v>=source.get_h())
+ v=source.get_h()-1;
+ //pen.set_value(source[v][u]);
+ (*surface)[y][x]=source[v][u];
+ }
+ if((y&31)==0 && cb)
+ {
+ if(!stagetwo.amount_complete(y,surface->get_h()))
+ return false;
+ }
+ }
+ }
+
+ if(cb && !cb->amount_complete(10000,10000)) return false;
+
+ return true;
+}
+
+Rect
+Rotate::get_full_bounding_rect(Context context)const
+{
+ Rect under(context.get_full_bounding_rect());
+ return get_transform()->perform(under);
+}
+
projects / synfig.git / blobdiff