+++ /dev/null
-/* === S Y N F I G ========================================================= */
-/*! \file radialblur.cpp
-** \brief Implementation of the "Radial Blur" 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 "radialblur.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(RadialBlur);
-SYNFIG_LAYER_SET_NAME(RadialBlur,"radial_blur");
-SYNFIG_LAYER_SET_LOCAL_NAME(RadialBlur,N_("Radial Blur"));
-SYNFIG_LAYER_SET_CATEGORY(RadialBlur,N_("Blurs"));
-SYNFIG_LAYER_SET_VERSION(RadialBlur,"0.1");
-SYNFIG_LAYER_SET_CVS_ID(RadialBlur,"$Id$");
-
-/* === 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 ================================================= */
-
-RadialBlur::RadialBlur():
- origin (0,0),
- size (0.2),
- fade_out(false)
-{
-}
-
-RadialBlur::~RadialBlur()
-{
-}
-
-bool
-RadialBlur::set_param(const String & param, const ValueBase &value)
-{
- IMPORT(origin);
- IMPORT(size);
- IMPORT(fade_out);
-
- return Layer_Composite::set_param(param,value);
-}
-
-ValueBase
-RadialBlur::get_param(const String ¶m)const
-{
- EXPORT(origin);
- EXPORT(size);
- EXPORT(fade_out);
-
- EXPORT_NAME();
- EXPORT_VERSION();
-
- return Layer_Composite::get_param(param);
-}
-
-Layer::Vocab
-RadialBlur::get_param_vocab()const
-{
- Layer::Vocab ret(Layer_Composite::get_param_vocab());
-
- ret.push_back(ParamDesc("origin")
- .set_local_name(_("Origin"))
- .set_description(_("Point where you want the origin to be"))
- );
-
- ret.push_back(ParamDesc("size")
- .set_local_name(_("Size"))
- .set_description(_("Size of blur"))
- .set_origin("origin")
- );
-
- ret.push_back(ParamDesc("fade_out")
- .set_local_name(_("Fade Out"))
- );
-
- return ret;
-}
-
-Color
-RadialBlur::get_color(Context context, const Point &p)const
-{
- //! \writeme
- return context.get_color(p);
-}
-
-bool
-RadialBlur::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
-{
- // don't do anything at quality 10
- if (quality == 10)
- return context.accelerated_render(surface,quality,renddesc,cb);
-
- if(cb && !cb->amount_complete(0,10000))
- return false;
-
- Surface tmp_surface;
- const Point tl(renddesc.get_tl()), br(renddesc.get_br());
- const int w(renddesc.get_w()), h(renddesc.get_h());
- const Real pw(renddesc.get_pw()),ph(renddesc.get_ph());
-
- Rect rect(tl, br);
- Point pos;
-
- // find how far towards the origin of the blur we are going to
- // wander for each of the 4 corners of our tile, expanding the
- // render description for each of them if necessary
- int x, y;
- for(y=0,pos[1]=tl[1];y<h;y+=(h-1),pos[1]+=ph*(h-1))
- for(x=0,pos[0]=tl[0];x<w;x+=(w-1),pos[0]+=pw*(w-1))
- rect.expand((pos-origin)*(1.0f-size) + origin);
-
- // round out to the nearest pixel
- Point tmp_surface_tl = Point(tl[0] - pw*(int((tl[0]-rect.get_min()[0])/pw+1-1e-6)),
- tl[1] - ph*(int((tl[1]-rect.get_max()[1])/ph+1-1e-6)));
- Point tmp_surface_br = Point(br[0] + pw*(int((rect.get_max()[0]-br[0])/pw+2-1e-6)),
- br[1] + ph*(int((rect.get_min()[1]-br[1])/ph+2-1e-6)));
-
- // round to nearest integer width and height (should be very
- // nearly whole numbers already, but don't want to round 5.99999
- // down to 5)
- int tmp_surface_width = int((tmp_surface_br[0]-tmp_surface_tl[0])/pw + 0.5);
- int tmp_surface_height = int((tmp_surface_br[1]-tmp_surface_tl[1])/ph + 0.5);
-
- RendDesc desc(renddesc);
- desc.clear_flags();
- desc.set_wh(tmp_surface_width,tmp_surface_height);
- desc.set_tl(tmp_surface_tl);
- desc.set_br(tmp_surface_br);
-
- // render the layers beneath us
- if(!context.accelerated_render(&tmp_surface,quality,desc,cb))
- return false;
-
- // copy the part of the layers beneath us that corresponds to this tile
- surface->set_wh(w, h);
- Surface::pen pen(surface->get_pen(0, 0));
- tmp_surface.blit_to(pen,
- int((tl[0] - tmp_surface_tl[0])/pw + 0.5),
- int((tl[1] - tmp_surface_tl[1])/ph + 0.5),
- w, h);
-
- Surface::alpha_pen apen(surface->begin());
-
- apen.set_alpha(get_amount());
- apen.set_blend_method(get_blend_method());
-
-/*
- int steps(5);
-
- if(quality>=9)steps=20;
- else if(quality>=5)steps=30;
- else if(quality>=4)steps=60;
- else if(quality>=3)steps=100;
- else steps=120;
-*/
-
- Surface::value_prep_type cooker;
-
- // loop through the pixels
- for(y=0,pos[1]=tl[1];y<h;y++,apen.inc_y(),apen.dec_x(x),pos[1]+=ph)
- for(x=0,pos[0]=tl[0];x<w;x++,apen.inc_x(),pos[0]+=pw)
- {
- Point
- begin(pos-tmp_surface_tl),
- end((pos-origin)*(1.0f-size) + origin-tmp_surface_tl);
- begin[0]/=pw;begin[1]/=ph;
- end[0]/=pw;end[1]/=ph;
-
- Color pool(Color::alpha());
- int poolsize(0);
-
- int x0(round_to_int(begin[0])),
- y0(round_to_int(begin[1])),
- x1(round_to_int(end[0])),
- y1(round_to_int(end[1]));
-
- int i;
- int steep = 1;
- int sx, sy; /* step positive or negative (1 or -1) */
- int dx, dy; /* delta (difference in X and Y between points) */
- int e;
- int w(tmp_surface_width), h(tmp_surface_height);
-
- dx = abs(x1 - x0);
- sx = ((x1 - x0) > 0) ? 1 : -1;
- dy = abs(y1 - y0);
- sy = ((y1 - y0) > 0) ? 1 : -1;
- if (dy > dx)
- {
- steep = 0;
- swap(x0, y0);
- swap(dx, dy);
- swap(sx, sy);
- swap(w,h);
- }
- e = (dy << 1) - dx;
- for (i = 0; i < dx; i++)
- {
- if(y0>=0 && x0>=0 && y0<h && x0<w)
- {
- if(fade_out)
- {
- if (steep)
- pool+=cooker.cook(tmp_surface[y0][x0])*(i-dx);
- else
- pool+=cooker.cook(tmp_surface[x0][y0])*(i-dx);
- poolsize+=(i-dx);
- }
- else
- {
- if (steep)
- pool+=cooker.cook(tmp_surface[y0][x0]);
- else
- pool+=cooker.cook(tmp_surface[x0][y0]);
- poolsize+=1;
- }
- } else
- printf("%s:%d unexpected %d >= %d or %d >= %d?\n", __FILE__, __LINE__, x0, w, y0, h);
-
- while (e >= 0)
- {
- y0 += sy;
- e -= (dx << 1);
- }
- x0 += sx;
- e += (dy << 1);
- }
- if(poolsize)
- {
- pool/=poolsize;
- apen.put_value(cooker.uncook(pool));
- }
-/*
- Point begin,end;
- begin=pos;
- end=(pos-origin)*(1.0f-size)+origin;
-
- Color pool(Color::alpha());
- float f,poolsize(0);
- int i;
- int steps(steps*size);
- for(f=0,i=0;i<steps;i++,f+=1.0f/(steps-1))
- {
- Point loc((end-begin)*f+begin-tl);
- loc[0]/=pw;loc[1]/=ph;
-
- if(fade_out)
- pool+=tmp_surface.linear_sample(loc[0],loc[1])*(i-steps),poolsize+=(i-steps);
- else
- pool+=tmp_surface.linear_sample(loc[0],loc[1]),poolsize+=1;
- }
- pool/=poolsize;
- apen.put_value(pool);
-*/
- }
-
-
- if(cb && !cb->amount_complete(10000,10000)) return false;
-
-// #define DRAW_TILE_OUTLINES
-#ifdef DRAW_TILE_OUTLINES
- // draw red lines to show tiles
- {
- int x, y;
- if (w != 0 && h != 0) {
- Surface::alpha_pen apen(surface->begin());
- apen.set_alpha(get_amount());
- apen.set_blend_method(get_blend_method());
- apen.set_value(Color(1, 0, 0, .1));
- for (x = 0; x < w; x++) { apen.put_value(); apen.inc_x(); } apen.dec_x(w);
- for (y = 0; y < h; y++) { apen.put_value(); apen.inc_y(); } apen.dec_y(h);
- }
- }
-#endif // DRAW_TILE_OUTLINES
-
- return true;
-}
projects / synfig.git / blobdiff