/* === S Y N F I G ========================================================= */
/*! \file synfig/rendering/common/task/taskpixelprocessor.h
** \brief TaskPixelProcessor Header
**
** $Id$
**
** \legal
** ......... ... 2016-2018 Ivan Mahonin
**
** 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
*/
/* ========================================================================= */
/* === S T A R T =========================================================== */
#ifndef __SYNFIG_RENDERING_TASKPIXELPROCESSOR_H
#define __SYNFIG_RENDERING_TASKPIXELPROCESSOR_H
/* === H E A D E R S ======================================================= */
#include <synfig/color/colormatrix.h>
#include "../../task.h"
#include "tasktransformation.h"
/* === M A C R O S ========================================================= */
/* === T Y P E D E F S ===================================================== */
/* === C L A S S E S & S T R U C T S ======================================= */
namespace synfig
{
namespace rendering
{
class TaskPixelProcessor: public Task,
public TaskInterfaceTransformationPass,
public TaskInterfaceConstant,
public TaskInterfaceSplit
{
public:
typedef etl::handle<TaskPixelProcessor> Handle;
static Token token;
virtual Token::Handle get_token() const { return token.handle(); }
const Task::Handle& sub_task() const { return Task::sub_task(0); }
Task::Handle& sub_task() { return Task::sub_task(0); }
VectorInt get_offset() const;
virtual Rect calc_bounds() const;
virtual int get_pass_subtask_index() const
{
if (is_zero())
return PASSTO_NO_TASK;
if (!is_affects_transparent() && !sub_task())
return PASSTO_NO_TASK;
if (is_transparent())
return sub_task() ? 0 : PASSTO_NO_TASK;
if (is_constant())
return PASSTO_THIS_TASK_WITHOUT_SUBTASKS;
return PASSTO_THIS_TASK;
}
virtual bool is_zero() const
{ return false; }
virtual bool is_transparent() const
{ return false; }
virtual bool is_constant() const
{ return false; }
virtual bool is_affects_transparent() const
{ return false; }
};
class TaskPixelGamma: public TaskPixelProcessor
{
public:
typedef etl::handle<TaskPixelGamma> Handle;
static Token token;
virtual Token::Handle get_token() const { return token.handle(); }
Gamma gamma;
TaskPixelGamma() { }
virtual bool is_transparent() const
{
return approximate_equal_lp(gamma.get_r(), ColorReal(1.0))
&& approximate_equal_lp(gamma.get_g(), ColorReal(1.0))
&& approximate_equal_lp(gamma.get_b(), ColorReal(1.0));
}
};
class TaskPixelColorMatrix: public TaskPixelProcessor
{
public:
typedef etl::handle<TaskPixelColorMatrix> Handle;
static Token token;
virtual Token::Handle get_token() const { return token.handle(); }
ColorMatrix matrix;
virtual bool is_zero() const
{ return matrix.is_transparent(); }
virtual bool is_transparent() const
{ return matrix.is_identity(); }
virtual bool is_constant() const
{ return matrix.is_constant(); }
virtual bool is_affects_transparent() const
{ return matrix.is_affects_transparent(); }
};
} /* end namespace rendering */
} /* end namespace synfig */
/* -- E N D ----------------------------------------------------------------- */
#endif