+++ /dev/null
-/* === S Y N F I G ========================================================= */
-/*! \file warp.cpp
-** \brief Implementation of the "Warp" layer
-**
-** $Id$
-**
-** \legal
-** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
-** Copyright (c) 2007, 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 "warp.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(Warp);
-SYNFIG_LAYER_SET_NAME(Warp,"warp");
-SYNFIG_LAYER_SET_LOCAL_NAME(Warp,N_("Warp"));
-SYNFIG_LAYER_SET_CATEGORY(Warp,N_("Distortions"));
-SYNFIG_LAYER_SET_VERSION(Warp,"0.1");
-SYNFIG_LAYER_SET_CVS_ID(Warp,"$Id$");
-
-/* === 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 ================================================= */
-
-Warp::Warp():
- src_tl (-2,2),
- src_br (2,-2),
- dest_tl (-1.8,2.1),
- dest_tr (1.8,2.1),
- dest_bl (-2.2,-2),
- dest_br (2.2,-2),
- clip (true)
-{
- sync();
- horizon=4;
-}
-
-Warp::~Warp()
-{
-}
-
-inline Point
-Warp::transform_forward(const Point& p)const
-{
- return Point(
- (inv_matrix[0][0]*p[0] + inv_matrix[0][1]*p[1] + inv_matrix[0][2])/(inv_matrix[2][0]*p[0] + inv_matrix[2][1]*p[1] + inv_matrix[2][2]),
- (inv_matrix[1][0]*p[0] + inv_matrix[1][1]*p[1] + inv_matrix[1][2])/(inv_matrix[2][0]*p[0] + inv_matrix[2][1]*p[1] + inv_matrix[2][2])
- );
-}
-
-inline Point
-Warp::transform_backward(const Point& p)const
-{
- return Point(
- (matrix[0][0]*p[0] + matrix[0][1]*p[1] + matrix[0][2])/(matrix[2][0]*p[0] + matrix[2][1]*p[1] + matrix[2][2]),
- (matrix[1][0]*p[0] + matrix[1][1]*p[1] + matrix[1][2])/(matrix[2][0]*p[0] + matrix[2][1]*p[1] + matrix[2][2])
- );
-}
-
-inline Real
-Warp::transform_forward_z(const Point& p)const
-{
- return inv_matrix[2][0]*p[0] + inv_matrix[2][1]*p[1] + inv_matrix[2][2];
-}
-
-inline Real
-Warp::transform_backward_z(const Point& p)const
-{
- return matrix[2][0]*p[0] + matrix[2][1]*p[1] + matrix[2][2];
-}
-
-/*
-#define transform_forward(p) Point( \
- cache_a*p[0] + cache_b*p[1] + cache_c*p[0]*p[1] + cache_d, \
- cache_e*p[0] + cache_f*p[1] + cache_i*p[0]*p[1] + cache_j )
-
-#define transform_backward(p) Point( \
- cache_a*p[0] + cache_b*p[1] + cache_c*p[0]*p[1] + cache_d, \
- cache_e*p[0] + cache_f*p[1] + cache_i*p[0]*p[1] + cache_j )
-*/
-
-#define triangle_area(a,b,c) (0.5*(-b[0]*a[1]+c[0]*a[1]+a[0]*b[1]-c[0]*b[1]-a[0]*c[1]+b[0]*c[1]))
-#define quad_area(a,b,c,d) (triangle_area(a,b,c)+triangle_area(a,c,d))
-
-Real mat3_determinant(Real matrix[3][3])
-{
- Real ret;
-
- ret = (matrix[0][0] *
- (matrix[1][1] * matrix[2][2] -
- matrix[1][2] * matrix[2][1]));
- ret -= (matrix[1][0] *
- (matrix[0][1] * matrix[2][2] -
- matrix[0][2] * matrix[2][1]));
- ret += (matrix[2][0] *
- (matrix[0][1] * matrix[1][2] -
- matrix[0][2] * matrix[1][1]));
-
-return ret;
-}
-
-void mat3_invert(Real in[3][3], Real out[3][3])
-{
- Real det(mat3_determinant(in));
-
- if (det == 0.0)
- return;
-
- det = 1.0 / det;
-
- out[0][0] = (in[1][1] * in[2][2] -
- in[1][2] * in[2][1]) * det;
-
- out[1][0] = - (in[1][0] * in[2][2] -
- in[1][2] * in[2][0]) * det;
-
- out[2][0] = (in[1][0] * in[2][1] -
- in[1][1] * in[2][0]) * det;
-
- out[0][1] = - (in[0][1] * in[2][2] -
- in[0][2] * in[2][1]) * det;
-
- out[1][1] = (in[0][0] * in[2][2] -
- in[0][2] * in[2][0]) * det;
-
- out[2][1] = - (in[0][0] * in[2][1] -
- in[0][1] * in[2][0]) * det;
-
- out[0][2] = (in[0][1] * in[1][2] -
- in[0][2] * in[1][1]) * det;
-
- out[1][2] = - (in[0][0] * in[1][2] -
- in[0][2] * in[1][0]) * det;
-
- out[2][2] = (in[0][0] * in[1][1] -
- in[0][1] * in[1][0]) * det;
-
-}
-
-void
-Warp::sync()
-{
-/* cache_a=(-dest_tl[0]+dest_tr[0])/(src_br[1]-src_tl[1]);
- cache_b=(-dest_tl[0]+dest_bl[0])/(src_br[0]-src_tl[0]);
- cache_c=(dest_tl[0]-dest_tr[0]+dest_br[0]-dest_bl[0])/((src_br[1]-src_tl[1])*(src_br[0]-src_tl[0]));
- cache_d=dest_tl[0];
-
- cache_e=(-dest_tl[1]+dest_tr[1])/(src_br[0]-src_tl[0]);
- cache_f=(-dest_tl[1]+dest_bl[1])/(src_br[1]-src_tl[1]);
- cache_i=(dest_tl[1]-dest_tr[1]+dest_br[1]-dest_bl[1])/((src_br[1]-src_tl[1])*(src_br[0]-src_tl[0]));
- cache_j=dest_tl[1];
-*/
-
-/* matrix[2][0]=(dest_tl[0]-dest_tr[0]+dest_br[0]-dest_bl[0])/((src_br[1]-src_tl[1])*(src_br[0]-src_tl[0]));
- matrix[2][1]=(dest_tl[1]-dest_tr[1]+dest_br[1]-dest_bl[1])/((src_br[1]-src_tl[1])*(src_br[0]-src_tl[0]));
- matrix[2][2]=quad_area(dest_tl,dest_tr,dest_br,dest_bl)/((src_br[1]-src_tl[1])*(src_br[0]-src_tl[0]));
-
- matrix[0][0]=-(-dest_tl[1]+dest_tr[1])/(src_br[0]-src_tl[0]);
- matrix[0][1]=-(-dest_tl[1]+dest_bl[1])/(src_br[1]-src_tl[1]);
-
- matrix[1][0]=-(-dest_tl[0]+dest_tr[0])/(src_br[1]-src_tl[1]);
- matrix[1][1]=-(-dest_tl[0]+dest_bl[0])/(src_br[0]-src_tl[0]);
-
- matrix[0][2]=matrix[0][0]*dest_tl[0] + matrix[0][1]*dest_tl[1];
- matrix[1][2]=matrix[1][0]*dest_tl[0] + matrix[1][1]*dest_tl[1];
-*/
-
-#define matrix tmp
- Real tmp[3][3];
-
- const Real& x1(min(src_br[0],src_tl[0]));
- const Real& y1(min(src_br[1],src_tl[1]));
- const Real& x2(max(src_br[0],src_tl[0]));
- const Real& y2(max(src_br[1],src_tl[1]));
-
- Real tx1(dest_bl[0]);
- Real ty1(dest_bl[1]);
- Real tx2(dest_br[0]);
- Real ty2(dest_br[1]);
- Real tx3(dest_tl[0]);
- Real ty3(dest_tl[1]);
- Real tx4(dest_tr[0]);
- Real ty4(dest_tr[1]);
-
- if(src_br[0]<src_tl[0])
- swap(tx3,tx4),swap(ty3,ty4),swap(tx1,tx2),swap(ty1,ty2);
-
- if(src_br[1]>src_tl[1])
- swap(tx3,tx1),swap(ty3,ty1),swap(tx4,tx2),swap(ty4,ty2);
-
- Real scalex;
- Real scaley;
-
- scalex = scaley = 1.0;
-
- if ((x2 - x1) > 0)
- scalex = 1.0 / (Real) (x2 - x1);
-
- if ((y2 - y1) > 0)
- scaley = 1.0 / (Real) (y2 - y1);
-
- /* Determine the perspective transform that maps from
- * the unit cube to the transformed coordinates
- */
- {
- Real dx1, dx2, dx3, dy1, dy2, dy3;
-
- dx1 = tx2 - tx4;
- dx2 = tx3 - tx4;
- dx3 = tx1 - tx2 + tx4 - tx3;
-
- dy1 = ty2 - ty4;
- dy2 = ty3 - ty4;
- dy3 = ty1 - ty2 + ty4 - ty3;
-
- /* Is the mapping affine? */
- if ((dx3 == 0.0) && (dy3 == 0.0))
- {
- matrix[0][0] = tx2 - tx1;
- matrix[0][1] = tx4 - tx2;
- matrix[0][2] = tx1;
- matrix[1][0] = ty2 - ty1;
- matrix[1][1] = ty4 - ty2;
- matrix[1][2] = ty1;
- matrix[2][0] = 0.0;
- matrix[2][1] = 0.0;
- }
- else
- {
- Real det1, det2;
-
- det1 = dx3 * dy2 - dy3 * dx2;
- det2 = dx1 * dy2 - dy1 * dx2;
-
- if (det1 == 0.0 && det2 == 0.0)
- matrix[2][0] = 1.0;
- else
- matrix[2][0] = det1 / det2;
-
- det1 = dx1 * dy3 - dy1 * dx3;
-
- if (det1 == 0.0 && det2 == 0.0)
- matrix[2][1] = 1.0;
- else
- matrix[2][1] = det1 / det2;
-
- matrix[0][0] = tx2 - tx1 + matrix[2][0] * tx2;
- matrix[0][1] = tx3 - tx1 + matrix[2][1] * tx3;
- matrix[0][2] = tx1;
-
- matrix[1][0] = ty2 - ty1 + matrix[2][0] * ty2;
- matrix[1][1] = ty3 - ty1 + matrix[2][1] * ty3;
- matrix[1][2] = ty1;
- }
-
- matrix[2][2] = 1.0;
- }
-#undef matrix
-
- Real scaletrans[3][3]={
- { scalex, 0, -x1*scalex },
- { 0, scaley, -y1*scaley },
- { 0, 0, 1 }
- };
-
- Real t1,t2,t3;
-
- for (int i = 0; i < 3; i++)
- {
- t1 = tmp[i][0];
- t2 = tmp[i][1];
- t3 = tmp[i][2];
-
- for (int j = 0; j < 3; j++)
- {
- matrix[i][j] = t1 * scaletrans[0][j];
- matrix[i][j] += t2 * scaletrans[1][j];
- matrix[i][j] += t3 * scaletrans[2][j];
- }
- }
-
- mat3_invert(matrix, inv_matrix);
-/*
- gimp_matrix3_identity (result);
- gimp_matrix3_translate (result, -x1, -y1);
- gimp_matrix3_scale (result, scalex, scaley);
- gimp_matrix3_mult (&matrix, result);
-*/
-}
-
-bool
-Warp::set_param(const String & param, const ValueBase &value)
-{
- IMPORT_PLUS(src_tl,sync());
- IMPORT_PLUS(src_br,sync());
- IMPORT_PLUS(dest_tl,sync());
- IMPORT_PLUS(dest_tr,sync());
- IMPORT_PLUS(dest_bl,sync());
- IMPORT_PLUS(dest_br,sync());
- IMPORT(clip);
- IMPORT(horizon);
-
- return false;
-}
-
-ValueBase
-Warp::get_param(const String ¶m)const
-{
- EXPORT(src_tl);
- EXPORT(src_br);
- EXPORT(dest_tl);
- EXPORT(dest_tr);
- EXPORT(dest_bl);
- EXPORT(dest_br);
- EXPORT(clip);
- EXPORT(horizon);
-
- EXPORT_NAME();
- EXPORT_VERSION();
-
- return ValueBase();
-}
-
-Layer::Vocab
-Warp::get_param_vocab()const
-{
- Layer::Vocab ret;
-
- ret.push_back(ParamDesc("src_tl")
- .set_local_name(_("Source TL"))
- .set_box("src_br")
- );
-
- ret.push_back(ParamDesc("src_br")
- .set_local_name(_("Source BR"))
- );
-
- ret.push_back(ParamDesc("dest_tl")
- .set_local_name(_("Dest TL"))
- .set_connect("dest_tr")
- );
-
- ret.push_back(ParamDesc("dest_tr")
- .set_local_name(_("Dest TR"))
- .set_connect("dest_br")
- );
-
- ret.push_back(ParamDesc("dest_br")
- .set_local_name(_("Dest BR"))
- .set_connect("dest_bl")
- );
-
- ret.push_back(ParamDesc("dest_bl")
- .set_local_name(_("Dest BL"))
- .set_connect("dest_tl")
- );
-
- ret.push_back(ParamDesc("clip")
- .set_local_name(_("Clip"))
- );
-
- ret.push_back(ParamDesc("horizon")
- .set_local_name(_("Horizon"))
- );
-
- return ret;
-}
-
-
-class Warp_Trans : public Transform
-{
- etl::handle<const Warp> layer;
-public:
- Warp_Trans(const Warp* x):Transform(x->get_guid()),layer(x) { }
-
- synfig::Vector perform(const synfig::Vector& x)const
- {
- return layer->transform_backward(x);
- //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
- {
-
- return layer->transform_forward(x);
- //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>
-Warp::get_transform()const
-{
- return new Warp_Trans(this);
-}
-
-synfig::Layer::Handle
-Warp::hit_check(synfig::Context context, const synfig::Point &p)const
-{
- Point newpos(transform_forward(p));
-
- if(clip)
- {
- Rect rect(src_tl,src_br);
- if(!rect.is_inside(newpos))
- return 0;
- }
-
- return context.hit_check(newpos);
-}
-
-Color
-Warp::get_color(Context context, const Point &p)const
-{
- Point newpos(transform_forward(p));
-
- if(clip)
- {
- Rect rect(src_tl,src_br);
- if(!rect.is_inside(newpos))
- return Color::alpha();
- }
-
- const float z(transform_backward_z(newpos));
- if(z>0 && z<horizon)
- return context.get_color(newpos);
- else
- return Color::alpha();
-}
-
-//#define ACCEL_WARP_IS_BROKEN 1
-
-bool
-Warp::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
-{
- SuperCallback stageone(cb,0,9000,10000);
- SuperCallback stagetwo(cb,9000,10000,10000);
-
- 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]);
-
- if(cb && !cb->amount_complete(0,10000))
- return false;
-
- Point tl(renddesc.get_tl());
- Point br(renddesc.get_br());
-
- Rect bounding_rect;
-
- Rect render_rect(tl,br);
- Rect clip_rect(Rect::full_plane());
- Rect dest_rect(dest_tl,dest_br); dest_rect.expand(dest_tr).expand(dest_bl);
-
- Real zoom_factor(1.0);
-
- // Quick exclusion clip, if necessary
- if(clip && !intersect(render_rect,dest_rect))
- {
- surface->set_wh(renddesc.get_w(),renddesc.get_h());
- surface->clear();
- return true;
- }
-
- {
- Rect other(render_rect);
- if(clip)
- other&=dest_rect;
-
- Point min(other.get_min());
- Point max(other.get_max());
-
- bool init_point_set=false;
-
- // Point trans_point[4];
- Point p;
- // Real trans_z[4];
- Real z,minz(10000000000000.0f),maxz(0);
-
- //! \todo checking the 4 corners for 0<=z<horizon*2 and using
- //! only 4 corners which satisfy this condition isn't the
- //! right thing to do. It's possible that none of the 4
- //! corners fall within that range, and yet content of the
- //! tile does.
- p=transform_forward(min);
- z=transform_backward_z(p);
- if(z>0 && z<horizon*2)
- {
- if(init_point_set)
- bounding_rect.expand(p);
- else
- bounding_rect=Rect(p);
- init_point_set=true;
- maxz=std::max(maxz,z);
- minz=std::min(minz,z);
- }
-
- p=transform_forward(max);
- z=transform_backward_z(p);
- if(z>0 && z<horizon*2)
- {
- if(init_point_set)
- bounding_rect.expand(p);
- else
- bounding_rect=Rect(p);
- init_point_set=true;
- maxz=std::max(maxz,z);
- minz=std::min(minz,z);
- }
-
- swap(min[1],max[1]);
-
- p=transform_forward(min);
- z=transform_backward_z(p);
- if(z>0 && z<horizon*2)
- {
- if(init_point_set)
- bounding_rect.expand(p);
- else
- bounding_rect=Rect(p);
- init_point_set=true;
- maxz=std::max(maxz,z);
- minz=std::min(minz,z);
- }
-
- p=transform_forward(max);
- z=transform_backward_z(p);
- if(z>0 && z<horizon*2)
- {
- if(init_point_set)
- bounding_rect.expand(p);
- else
- bounding_rect=Rect(p);
- init_point_set=true;
- maxz=std::max(maxz,z);
- minz=std::min(minz,z);
- }
-
- if(!init_point_set)
- {
- surface->set_wh(renddesc.get_w(),renddesc.get_h());
- surface->clear();
- return true;
- }
- zoom_factor=(1+(maxz-minz));
-
- }
-
-#ifdef ACCEL_WARP_IS_BROKEN
- return Layer::accelerated_render(context,surface,quality,renddesc, cb);
-#else
-
- /*swap(tl[1],br[1]);
- bounding_rect
- .expand(transform_forward(tl))
- .expand(transform_forward(br))
- ;
- swap(tl[1],br[1]);*/
-
- //synfig::warning("given window: [%f,%f]-[%f,%f] %dx%d",tl[0],tl[1],br[0],br[1],renddesc.get_w(),renddesc.get_h());
- //synfig::warning("Projected: [%f,%f]-[%f,%f]",bounding_rect.get_min()[0],bounding_rect.get_min()[1],bounding_rect.get_max()[0],bounding_rect.get_max()[1]);
-
- // If we are clipping, then go ahead and clip to the
- // source rectangle
- if(clip)
- clip_rect&=Rect(src_tl,src_br);
-
- // Bound ourselves to the bounding rectangle of
- // what is under us
- clip_rect&=context.get_full_bounding_rect();//.expand_x(abs(zoom_factor/pw)).expand_y(abs(zoom_factor/ph));
-
- bounding_rect&=clip_rect;
-
- Point min_point(bounding_rect.get_min());
- Point max_point(bounding_rect.get_max());
-
- // we're going to divide by the difference of these pairs soon;
- // if they're the same, we'll be dividing by zero, and we don't
- // want to do that!
- // \todo what should we do in this case?
- if (min_point[0] == max_point[0]) max_point[0] += 0.001;
- if (min_point[1] == max_point[1]) max_point[1] += 0.001;
-
- 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];
- }
-
-
-
- const int tmp_d(max(renddesc.get_w(),renddesc.get_h()));
- Real src_pw=(tmp_d*zoom_factor)/(br[0]-tl[0]);
- Real src_ph=(tmp_d*zoom_factor)/(br[1]-tl[1]);
-
-
- RendDesc desc(renddesc);
- desc.clear_flags();
- //desc.set_flags(RendDesc::PX_ASPECT);
- desc.set_tl(tl);
- desc.set_br(br);
- desc.set_wh(ceil_to_int(src_pw*(br[0]-tl[0])),ceil_to_int(src_ph*(br[1]-tl[1])));
-
- //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());
- if(desc.get_w()==0 && desc.get_h()==0)
- {
- surface->set_wh(renddesc.get_w(),renddesc.get_h());
- surface->clear();
- return true;
- }
-
- // Recalculate the pixel widths for the src renddesc
- src_pw=(desc.get_w())/(desc.get_br()[0]-desc.get_tl()[0]);
- src_ph=(desc.get_h())/(desc.get_br()[1]-desc.get_tl()[1]);
-
-
- 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->clear();
-
- Surface::pen pen(surface->begin());
-
- if(quality<=4)
- {
- // CUBIC
- int x,y;
- float 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=transform_forward(point);
- const float z(transform_backward_z(tmp));
- if(!clip_rect.is_inside(tmp) || !(z>0 && z<horizon))
- {
- (*surface)[y][x]=Color::alpha();
- continue;
- }
-
- u=(tmp[0]-tl[0])*src_pw;
- v=(tmp[1]-tl[1])*src_ph;
-
- if(u<0 || v<0 || u>=source.get_w() || v>=source.get_h() || isnan(u) || isnan(v))
- (*surface)[y][x]=context.get_color(tmp);
- else
- (*surface)[y][x]=source.cubic_sample(u,v);
- }
- if((y&31)==0 && cb)
- {
- if(!stagetwo.amount_complete(y,surface->get_h()))
- return false;
- }
- }
- }
- else
- if(quality<=6)
- {
- // INTERPOLATION_LINEAR
- int x,y;
- float 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=transform_forward(point);
- const float z(transform_backward_z(tmp));
- if(!clip_rect.is_inside(tmp) || !(z>0 && z<horizon))
- {
- (*surface)[y][x]=Color::alpha();
- continue;
- }
-
- u=(tmp[0]-tl[0])*src_pw;
- v=(tmp[1]-tl[1])*src_ph;
-
- if(u<0 || v<0 || u>=source.get_w() || v>=source.get_h() || isnan(u) || isnan(v))
- (*surface)[y][x]=context.get_color(tmp);
- else
- (*surface)[y][x]=source.linear_sample(u,v);
- }
- if((y&31)==0 && cb)
- {
- if(!stagetwo.amount_complete(y,surface->get_h()))
- return false;
- }
- }
- }
- else
- {
- // NEAREST_NEIGHBOR
- int x,y;
- float 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=transform_forward(point);
- const float z(transform_backward_z(tmp));
- if(!clip_rect.is_inside(tmp) || !(z>0 && z<horizon))
- {
- (*surface)[y][x]=Color::alpha();
- continue;
- }
-
- u=(tmp[0]-tl[0])*src_pw;
- v=(tmp[1]-tl[1])*src_ph;
-
- if(u<0 || v<0 || u>=source.get_w() || v>=source.get_h() || isnan(u) || isnan(v))
- (*surface)[y][x]=context.get_color(tmp);
- else
- //pen.set_value(source[v][u]);
- (*surface)[y][x]=source[floor_to_int(v)][floor_to_int(u)];
- }
- if((y&31)==0 && cb)
- {
- if(!stagetwo.amount_complete(y,surface->get_h()))
- return false;
- }
- }
- }
-
-#endif
-
- if(cb && !cb->amount_complete(10000,10000)) return false;
-
- return true;
-}
-
-synfig::Rect
-Warp::get_bounding_rect()const
-{
- return Rect::full_plane();
-}
-
-synfig::Rect
-Warp::get_full_bounding_rect(Context context)const
-{
-// return Rect::full_plane();
-
- Rect under(context.get_full_bounding_rect());
-
- if(clip)
- {
- under&=Rect(src_tl,src_br);
- }
-
- return get_transform()->perform(under);
-
- /*
- Rect under(context.get_full_bounding_rect());
- Rect ret(Rect::zero());
-
- if(under.area()==HUGE_VAL)
- return Rect::full_plane();
-
- ret.expand(
- transform_backward(
- under.get_min()
- )
- );
- ret.expand(
- transform_backward(
- under.get_max()
- )
- );
- ret.expand(
- transform_backward(
- Vector(
- under.get_min()[0],
- under.get_max()[1]
- )
- )
- );
- ret.expand(
- transform_backward(
- Vector(
- under.get_max()[0],
- under.get_min()[1]
- )
- )
- );
-
- if(ret.area()==HUGE_VAL)
- return Rect::full_plane();
-
- return ret;
- */
-}
projects / synfig.git / blobdiff