--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file shade.cpp
+** \brief Implementation of the "Shade" 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
+*/
+/* ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+# include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "shade.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/segment.h>
+
+#include <cstring>
+#include <ETL/pen>
+#include <ETL/misc>
+
+#endif
+
+using namespace synfig;
+using namespace etl;
+using namespace std;
+
+/*#define TYPE_BOX 0
+#define TYPE_FASTGUASSIAN 1
+#define TYPE_CROSS 2
+#define TYPE_GAUSSIAN 3
+#define TYPE_DISC 4
+*/
+
+/* -- G L O B A L S --------------------------------------------------------- */
+
+SYNFIG_LAYER_INIT(Layer_Shade);
+SYNFIG_LAYER_SET_NAME(Layer_Shade,"shade");
+SYNFIG_LAYER_SET_LOCAL_NAME(Layer_Shade,N_("Shade"));
+SYNFIG_LAYER_SET_CATEGORY(Layer_Shade,N_("Stylize"));
+SYNFIG_LAYER_SET_VERSION(Layer_Shade,"0.2");
+SYNFIG_LAYER_SET_CVS_ID(Layer_Shade,"$Id$");
+
+/* -- F U N C T I O N S ----------------------------------------------------- */
+
+inline void clamp(synfig::Vector &v)
+{
+ if(v[0]<0.0)v[0]=0.0;
+ if(v[1]<0.0)v[1]=0.0;
+}
+
+Layer_Shade::Layer_Shade():
+ Layer_Composite (0.75,Color::BLEND_BEHIND),
+ size(0.1,0.1),
+ type(Blur::FASTGAUSSIAN),
+ color(Color::black()),
+ origin(0.2,-0.2),
+ invert(false)
+{
+}
+
+bool
+Layer_Shade::set_param(const String ¶m, const ValueBase &value)
+{
+ IMPORT_PLUS(size,clamp(size));
+ IMPORT(type);
+ IMPORT_PLUS(color, { if (color.get_a() == 0) { if (converted_blend_) {
+ set_blend_method(Color::BLEND_ALPHA_OVER);
+ color.set_a(1); } else transparent_color_ = true; } });
+ IMPORT(origin);
+ IMPORT(invert);
+
+ IMPORT_AS(origin,"offset");
+
+ return Layer_Composite::set_param(param,value);
+}
+
+ValueBase
+Layer_Shade::get_param(const String ¶m)const
+{
+ EXPORT(size);
+ EXPORT(type);
+ EXPORT(color);
+ EXPORT(origin);
+ EXPORT(invert);
+
+ EXPORT_NAME();
+ EXPORT_VERSION();
+
+ return Layer_Composite::get_param(param);
+}
+
+Color
+Layer_Shade::get_color(Context context, const Point &pos)const
+{
+ Point blurpos = Blur(size,type)(pos);
+
+ if(get_amount()==0.0)
+ return context.get_color(pos);
+
+ Color shade(color);
+
+ if(!invert)
+ shade.set_a(context.get_color(blurpos-origin).get_a());
+ else
+ shade.set_a(1.0f-context.get_color(blurpos-origin).get_a());
+
+ return Color::blend(shade,context.get_color(pos),get_amount(),get_blend_method());
+}
+
+bool
+Layer_Shade::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
+{
+ int x,y;
+
+ const int w = renddesc.get_w(),
+ h = renddesc.get_h();
+ const Real pw = renddesc.get_pw(),
+ ph = renddesc.get_ph();
+
+ RendDesc workdesc(renddesc);
+ Surface worksurface;
+ etl::surface<float> blurred;
+
+ //expand the working surface to accommodate the blur
+
+ //the expanded size = 1/2 the size in each direction rounded up
+ int halfsizex = (int) (abs(size[0]*.5/pw) + 3),
+ halfsizey = (int) (abs(size[1]*.5/ph) + 3);
+
+ int origin_u(-round_to_int(origin[0]/pw)),origin_v(-round_to_int(origin[1]/ph));
+
+ int origin_w(w+abs(origin_u)),origin_h(h+abs(origin_v));
+
+ workdesc.set_subwindow(
+ origin_u<0?origin_u:0,
+ origin_v<0?origin_v:0,
+ (origin_u>0?origin_u:0)+w,
+ (origin_v>0?origin_v:0)+h
+ );
+
+ if(quality >= 10)
+ {
+ halfsizex=1;
+ halfsizey=1;
+ }
+ else if (quality == 9)
+ {
+ halfsizex/=4;
+ halfsizey/=4;
+ }
+
+ //expand by 1/2 size in each direction on either side
+ switch(type)
+ {
+ case Blur::DISC:
+ case Blur::BOX:
+ case Blur::CROSS:
+ {
+ workdesc.set_subwindow(-max(1,halfsizex),-max(1,halfsizey),origin_w+2*max(1,halfsizex),origin_h+2*max(1,halfsizey));
+ break;
+ }
+ case Blur::FASTGAUSSIAN:
+ {
+ if(quality < 4)
+ {
+ halfsizex*=2;
+ halfsizey*=2;
+ }
+ workdesc.set_subwindow(-max(1,halfsizex),-max(1,halfsizey),origin_w+2*max(1,halfsizex),origin_h+2*max(1,halfsizey));
+ break;
+ }
+ case Blur::GAUSSIAN:
+ {
+ #define GAUSSIAN_ADJUSTMENT (0.05)
+ Real pw = (Real)workdesc.get_w()/(workdesc.get_br()[0]-workdesc.get_tl()[0]);
+ Real ph = (Real)workdesc.get_h()/(workdesc.get_br()[1]-workdesc.get_tl()[1]);
+
+ pw=pw*pw;
+ ph=ph*ph;
+
+ halfsizex = (int)(abs(pw)*size[0]*GAUSSIAN_ADJUSTMENT+0.5);
+ halfsizey = (int)(abs(ph)*size[1]*GAUSSIAN_ADJUSTMENT+0.5);
+
+ halfsizex = (halfsizex + 1)/2;
+ halfsizey = (halfsizey + 1)/2;
+ workdesc.set_subwindow( -halfsizex, -halfsizey, origin_w+2*halfsizex, origin_h+2*halfsizey );
+
+ break;
+ }
+ }
+#define SCALE_FACTOR (64.0)
+ if(/*quality>9 || */size[0]<=pw*SCALE_FACTOR)
+ {
+ SuperCallback stageone(cb,0,5000,10000);
+ SuperCallback stagetwo(cb,5000,10000,10000);
+
+ //callbacks depend on how long the blur takes
+ if(size[0] || size[1])
+ {
+ if(type == Blur::DISC)
+ {
+ stageone = SuperCallback(cb,0,5000,10000);
+ stagetwo = SuperCallback(cb,5000,10000,10000);
+ }
+ else
+ {
+ stageone = SuperCallback(cb,0,9000,10000);
+ stagetwo = SuperCallback(cb,9000,10000,10000);
+ }
+ }
+ else
+ {
+ stageone = SuperCallback(cb,0,9999,10000);
+ stagetwo = SuperCallback(cb,9999,10000,10000);
+ }
+
+
+
+ //render the background onto the expanded surface
+ if(!context.accelerated_render(&worksurface,quality,workdesc,&stageone))
+ return false;
+
+ // Copy over the alpha
+ blurred.set_wh(worksurface.get_w(),worksurface.get_h());
+ for(int j=0;j<worksurface.get_h();j++)
+ for(int i=0;i<worksurface.get_w();i++)
+ {
+ blurred[j][i]=worksurface[j][i].get_a();
+ }
+
+ //blur the image
+ Blur(size,type,&stagetwo)(blurred,workdesc.get_br()-workdesc.get_tl(),blurred);
+
+ //be sure the surface is of the correct size
+ surface->set_wh(renddesc.get_w(),renddesc.get_h());
+
+ int u = halfsizex-(origin_u<0?origin_u:0), v = halfsizey-(origin_v<0?origin_v:0);
+ for(y=0;y<renddesc.get_h();y++,v++)
+ {
+ u = halfsizex-(origin_u<0?origin_u:0);
+ for(x=0;x<renddesc.get_w();x++,u++)
+ {
+ Color a(color);
+
+ if(!invert)
+ a.set_a(blurred.linear_sample(origin_u+(float)u,origin_v+(float)v));
+ else
+ a.set_a(1.0f-blurred.linear_sample(origin_u+(float)u,origin_v+(float)v));
+
+ if(a.get_a() || get_blend_method()==Color::BLEND_STRAIGHT)
+ {
+ (*surface)[y][x]=Color::blend(a,worksurface[v][u],get_amount(),get_blend_method());
+ }
+ else (*surface)[y][x] = worksurface[v][u];
+ }
+ }
+ }
+ else
+ {
+
+ SuperCallback stageone(cb,0,5000,10000);
+ SuperCallback stagetwo(cb,5000,10000,10000);
+
+ //callbacks depend on how long the blur takes
+ if(size[0] || size[1])
+ {
+ if(type == Blur::DISC)
+ {
+ stageone = SuperCallback(cb,0,5000,10000);
+ stagetwo = SuperCallback(cb,5000,10000,10000);
+ }
+ else
+ {
+ stageone = SuperCallback(cb,0,9000,10000);
+ stagetwo = SuperCallback(cb,9000,10000,10000);
+ }
+ }
+ else
+ {
+ stageone = SuperCallback(cb,0,9999,10000);
+ stagetwo = SuperCallback(cb,9999,10000,10000);
+ }
+
+ int fw(floor_to_int(abs(size[0]/(pw*SCALE_FACTOR)))+1);
+ int fh(floor_to_int(abs(size[1]/(ph*SCALE_FACTOR)))+1);
+ int tmpw(round_to_int((float)workdesc.get_w()/fw)),tmph(round_to_int((float)workdesc.get_h()/fh));
+
+ workdesc.clear_flags();
+ workdesc.set_wh(tmpw,tmph);
+ //synfig::info("fw: %d, fh: %d",fw,fh);
+
+ //render the blur fodder
+ if(!context.accelerated_render(&worksurface,quality,workdesc,&stageone))
+ return false;
+
+ //render the background
+ if(!context.accelerated_render(surface,quality,renddesc,&stageone))
+ return false;
+
+ // Copy over the alpha
+ blurred.set_wh(worksurface.get_w(),worksurface.get_h());
+ for(int j=0;j<worksurface.get_h();j++)
+ for(int i=0;i<worksurface.get_w();i++)
+ blurred[j][i]=worksurface[j][i].get_a();
+
+ //blur the image
+ Blur(size,type,&stagetwo)(blurred,workdesc.get_br()-workdesc.get_tl(),blurred);
+
+
+ int u = halfsizex-(origin_u<0?origin_u:0), v = halfsizey-(origin_v<0?origin_v:0);
+ for(y=0;y<renddesc.get_h();y++,v++)
+ {
+ u = halfsizex-(origin_u<0?origin_u:0);
+ for(x=0;x<renddesc.get_w();x++,u++)
+ {
+ Color a(color);
+
+ if(!invert)
+ a.set_a(blurred.linear_sample(((float)origin_u+(float)u)/(float)fw,((float)origin_v+(float)v)/(float)fh));
+ else
+ a.set_a(1.0f-blurred.linear_sample(((float)origin_u+(float)u)/fw,((float)origin_v+(float)v)/(float)fh));
+
+ if(a.get_a() || get_blend_method()==Color::BLEND_STRAIGHT)
+ {
+ (*surface)[y][x]=Color::blend(a,(*surface)[y][x],get_amount(),get_blend_method());
+ }
+ }
+ }
+ }
+
+
+ if(cb && !cb->amount_complete(10000,10000))
+ {
+ //if(cb)cb->error(strprintf(__FILE__"%d: Accelerated Renderer Failure",__LINE__));
+ return false;
+ }
+
+ return true;
+}
+
+Layer::Vocab
+Layer_Shade::get_param_vocab(void)const
+{
+ Layer::Vocab ret(Layer_Composite::get_param_vocab());
+
+ ret.push_back(ParamDesc("color")
+ .set_local_name(_("Color"))
+ );
+ ret.push_back(ParamDesc("origin")
+ .set_local_name(_("Origin"))
+ );
+ ret.push_back(ParamDesc("size")
+ .set_local_name(_("Size"))
+ .set_description(_("Size of Shade"))
+ .set_is_distance()
+ .set_origin("origin")
+ );
+ ret.push_back(ParamDesc("type")
+ .set_local_name(_("Type"))
+ .set_description(_("Type of blur to use"))
+ .set_hint("enum")
+ .add_enum_value(Blur::BOX,"box",_("Box Blur"))
+ .add_enum_value(Blur::FASTGAUSSIAN,"fastgaussian",_("Fast Gaussian Blur"))
+ .add_enum_value(Blur::CROSS,"cross",_("Cross-Hatch Blur"))
+ .add_enum_value(Blur::GAUSSIAN,"gaussian",_("Gaussian Blur"))
+ .add_enum_value(Blur::DISC,"disc",_("Disc Blur"))
+ );
+
+ ret.push_back(ParamDesc("invert")
+ .set_local_name(_("Invert"))
+ );
+
+ return ret;
+}
+
+Rect
+Layer_Shade::get_full_bounding_rect(Context context)const
+{
+ if(is_disabled())
+ return context.get_full_bounding_rect();
+
+ if(invert)
+ return Rect::full_plane();
+
+ Rect under(context.get_full_bounding_rect());
+
+ if(Color::is_onto(get_blend_method()))
+ return under;
+
+ Rect bounds((under+origin).expand_x(size[0]).expand_y(size[1]));
+
+ if(is_solid_color())
+ return bounds;
+
+ return bounds|under;
+}
projects / synfig.git / blobdiff