+++ /dev/null
-/* === S Y N F I G ========================================================= */
-/*! \file mod_filter/blur.cpp
-** \brief Implementation of the "Blur" 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 "blur.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>
-
-#endif
-
-using namespace synfig;
-using namespace etl;
-using namespace std;
-
-/*#define TYPE_BOX 0
-#define TYPE_FASTGUASSIAN 1
-#define TYPE_FASTGAUSSIAN 1
-#define TYPE_CROSS 2
-#define TYPE_GUASSIAN 3
-#define TYPE_GAUSSIAN 3
-#define TYPE_DISC 4
-*/
-
-/* -- G L O B A L S --------------------------------------------------------- */
-
-SYNFIG_LAYER_INIT(Blur_Layer);
-SYNFIG_LAYER_SET_NAME(Blur_Layer,"blur");
-SYNFIG_LAYER_SET_LOCAL_NAME(Blur_Layer,N_("Blur"));
-SYNFIG_LAYER_SET_CATEGORY(Blur_Layer,N_("Blurs"));
-SYNFIG_LAYER_SET_VERSION(Blur_Layer,"0.2");
-SYNFIG_LAYER_SET_CVS_ID(Blur_Layer,"$Id$");
-
-/* -- 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;
-}
-
-Blur_Layer::Blur_Layer():
- Layer_Composite (1.0,Color::BLEND_STRAIGHT),
- size(0.1,0.1),
- type(Blur::FASTGAUSSIAN)
-{
-}
-
-bool
-Blur_Layer::set_param(const String ¶m, const ValueBase &value)
-{
- IMPORT_PLUS(size,clamp(size));
- IMPORT(type);
-
- return Layer_Composite::set_param(param,value);
-}
-
-ValueBase
-Blur_Layer::get_param(const String ¶m)const
-{
- EXPORT(size);
- EXPORT(type);
-
- EXPORT_NAME();
- EXPORT_VERSION();
-
- return Layer_Composite::get_param(param);
-}
-
-Color
-Blur_Layer::get_color(Context context, const Point &pos)const
-{
- Point blurpos = Blur(size,type)(pos);
-
- if(get_amount()==1.0 && get_blend_method()==Color::BLEND_STRAIGHT)
- return context.get_color(blurpos);
-
- if(get_amount()==0.0)
- return context.get_color(pos);
-
- return Color::blend(context.get_color(blurpos),context.get_color(pos),get_amount(),get_blend_method());
-}
-
-bool
-Blur_Layer::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);
-
- // int x,y;
- SuperCallback stageone(cb,0,5000,10000);
- SuperCallback stagetwo(cb,5000,10000,10000);
-
- 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,blurred;
-
- //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);
- }
-
- //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);
-
- //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),w+2*max(1,halfsizex),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),w+2*max(1,halfsizex),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, w+2*halfsizex, h+2*halfsizey );
-
- break;
- }
- }
-
- //render the background onto the expanded surface
- if(!context.accelerated_render(&worksurface,quality,workdesc,&stageone))
- return false;
-
- //blur the image
- Blur(size,type,&stagetwo)(worksurface,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());
-
- {
- Surface::pen pen(surface->begin());
- worksurface.blit_to(pen,halfsizex,halfsizey,renddesc.get_w(),renddesc.get_h());
- }
- {
- Surface::alpha_pen pen(surface->begin());
- pen.set_alpha(get_amount());
- pen.set_blend_method(get_blend_method());
- blurred.blit_to(pen,halfsizex,halfsizey,renddesc.get_w(),renddesc.get_h());
- }
- if(cb && !cb->amount_complete(10000,10000))
- {
- //if(cb)cb->error(strprintf(__FILE__"%d: Accelerated Renderer Failure",__LINE__));
- return false;
- }
-
- return true;
-}
-
-Layer::Vocab
-Blur_Layer::get_param_vocab(void)const
-{
- Layer::Vocab ret(Layer_Composite::get_param_vocab());
-
- ret.push_back(ParamDesc("size")
- .set_local_name(_("Size"))
- .set_description(_("Size of Blur"))
- );
- 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"))
- );
-
- return ret;
-}
-
-Rect
-Blur_Layer::get_full_bounding_rect(Context context)const
-{
- if(is_disabled() || Color::is_onto(get_blend_method()))
- return context.get_full_bounding_rect();
-
- Rect bounds(context.get_full_bounding_rect().expand_x(size[0]).expand_y(size[1]));
-
- return bounds;
-}
projects / synfig.git / blobdiff