X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Ftags%2Fstable%2Fsrc%2Fmodules%2Fmod_filter%2Fblur.cpp;fp=synfig-core%2Ftags%2Fstable%2Fsrc%2Fmodules%2Fmod_filter%2Fblur.cpp;h=e5104b01e98222e7458dfe225cc3b6ebefd8c63d;hb=391f6a3be479646721d8cc78b5ee673db17bd540;hp=0000000000000000000000000000000000000000;hpb=ce9ddb9d0e877117ef8648f901f0c7db9eca3d79;p=synfig.git diff --git a/synfig-core/tags/stable/src/modules/mod_filter/blur.cpp b/synfig-core/tags/stable/src/modules/mod_filter/blur.cpp new file mode 100644 index 0000000..e5104b0 --- /dev/null +++ b/synfig-core/tags/stable/src/modules/mod_filter/blur.cpp @@ -0,0 +1,268 @@ +/* === 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 +#endif + +#include "blur.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#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; +}