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//
// libavg - Media Playback Engine.
// Copyright (C) 2003-2014 Ulrich von Zadow
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Current versions can be found at www.libavg.de
//
#include "HueSatFXNode.h"
#include "../base/ObjectCounter.h"
#include "../base/Logger.h"
#include "../graphics/BitmapLoader.h"
#include<sstream>
using namespace std;
namespace avg {
HueSatFXNode::HueSatFXNode(int hue, int saturation, int lightness, bool bColorize)
: FXNode(),
m_fHue(hue),
m_fLightnessOffset(lightness),
m_fSaturation(saturation),
m_bColorize(bColorize)
{
ObjectCounter::get()->incRef(&typeid(*this));
}
HueSatFXNode::~HueSatFXNode()
{
ObjectCounter::get()->decRef(&typeid(*this));
}
void HueSatFXNode::disconnect()
{
filterPtr = GPUHueSatFilterPtr();
FXNode::disconnect();
}
int HueSatFXNode::getHue()
{
if (m_bColorize) {
if (m_fHue < 0) {
return 360 + m_fHue;
}
return m_fHue;
}
if (m_fHue/180.0 > 1.0) {
return -360+m_fHue;
} else if (m_fHue/180.0 < -1.0) {
return 360+m_fHue;
}
return m_fHue;
}
int HueSatFXNode::getSaturation()
{
return m_fSaturation;
}
int HueSatFXNode::getLightnessOffset()
{
return m_fLightnessOffset;
}
bool HueSatFXNode::isColorizing()
{
return m_bColorize;
}
void HueSatFXNode::setHue(int hue)
{
m_fHue = hue % 360;
setFilterParams();
}
void HueSatFXNode::setSaturation(int saturation)
{
if (m_bColorize) {
m_fSaturation = clamp(saturation, 0, 100);
} else {
m_fSaturation = clamp(saturation, -100, 100);
}
setFilterParams();
}
void HueSatFXNode::setLightnessOffset(int lightnessOffset)
{
m_fLightnessOffset = clamp(lightnessOffset, -100, 100);
setFilterParams();
}
void HueSatFXNode::setColorizing(bool colorize)
{
m_bColorize = colorize;
setFilterParams();
}
GPUFilterPtr HueSatFXNode::createFilter(const IntPoint& size)
{
filterPtr = GPUHueSatFilterPtr(new GPUHueSatFilter(size, true, false));
setFilterParams();
return filterPtr;
}
void HueSatFXNode::setFilterParams()
{
if (filterPtr) {
filterPtr->setParams(m_fHue, m_fSaturation, m_fLightnessOffset, m_bColorize);
setDirty();
}
}
std::string HueSatFXNode::toString()
{
stringstream s;
s << "HueSatFXNode( Hue: " << m_fHue << ", Saturation: " << m_fSaturation <<
", Lightness: " << m_fLightnessOffset << ", Colorize: " << m_bColorize <<
" )";
return s.str();
}
int HueSatFXNode::clamp(int val, int min, int max)
{
int result = val;
if (val < min) {
result = min;
} else if (val > max) {
result = max;
}
return result;
}
}
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