/* === 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
** Copyright (c) 2012-2013 Carlos López
**
** 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 <cstring>
#include "blur.h"
#include <synfig/localization.h>
#include <synfig/general.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 <synfig/cairo_renddesc.h>
#include <synfig/rendering/common/task/taskblend.h>
#include <synfig/rendering/common/task/taskblur.h>
#include <synfig/rendering/software/function/blur.h>
#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,"0.3");
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_CompositeFork(1.0,Color::BLEND_STRAIGHT),
param_size(ValueBase(Point(0.1,0.1))),
param_type(ValueBase(int(Blur::FASTGAUSSIAN)))
{
SET_INTERPOLATION_DEFAULTS();
SET_STATIC_DEFAULTS();
}
bool
Blur_Layer::set_param(const String ¶m, const ValueBase &value)
{
IMPORT_VALUE_PLUS(param_size,
{
synfig::Point size=param_size.get(Point());
clamp(size);
param_size.set(size);
});
IMPORT_VALUE(param_type);
return Layer_Composite::set_param(param,value);
}
ValueBase
Blur_Layer::get_param(const String ¶m)const
{
EXPORT_VALUE(param_size);
EXPORT_VALUE(param_type);
EXPORT_NAME();
EXPORT_VERSION();
return Layer_Composite::get_param(param);
}
Color
Blur_Layer::get_color(Context context, const Point &pos)const
{
synfig::Point size=param_size.get(Point());
int type=param_type.get(int());
size *= rendering::software::Blur::get_size_amplifier((rendering::Blur::Type)type)
* ::Blur::get_size_amplifier(type);
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());
}
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
{
synfig::Point size=param_size.get(Point());
int type=param_type.get(int());
size *= rendering::software::Blur::get_size_amplifier((rendering::Blur::Type)type)
* ::Blur::get_size_amplifier(type);
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;
}
rendering::Task::Handle
Blur_Layer::build_composite_fork_task_vfunc(ContextParams /* context_params */, rendering::Task::Handle sub_task)const
{
Vector size = param_size.get(Point());
rendering::Blur::Type type = (rendering::Blur::Type)param_type.get(int());
rendering::TaskBlur::Handle task_blur(new rendering::TaskBlur());
task_blur->blur.size = size;
task_blur->blur.type = type;
task_blur->sub_task() = sub_task ? sub_task->clone_recursive() : rendering::Task::Handle();
return task_blur;
}