--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file colorcorrect.cpp
+** \brief Implementation of the "Color Correct" layer
+**
+** $Id$
+**
+** \legal
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**
+** 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 "colorcorrect.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>
+
+#endif
+
+/* === U S I N G =========================================================== */
+
+using namespace etl;
+using namespace std;
+using namespace synfig;
+
+/* === G L O B A L S ======================================================= */
+
+SYNFIG_LAYER_INIT(Layer_ColorCorrect);
+SYNFIG_LAYER_SET_NAME(Layer_ColorCorrect,"colorcorrect");
+SYNFIG_LAYER_SET_LOCAL_NAME(Layer_ColorCorrect,N_("Color Correct"));
+SYNFIG_LAYER_SET_CATEGORY(Layer_ColorCorrect,N_("Filters"));
+SYNFIG_LAYER_SET_VERSION(Layer_ColorCorrect,"0.1");
+SYNFIG_LAYER_SET_CVS_ID(Layer_ColorCorrect,"$Id$");
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+/* === E N T R Y P O I N T ================================================= */
+
+Layer_ColorCorrect::Layer_ColorCorrect():
+ hue_adjust(Angle::zero()),
+ brightness(0),
+ contrast(1.0),
+ exposure(0.0)
+{
+}
+
+inline Color
+Layer_ColorCorrect::correct_color(const Color &in)const
+{
+ Color ret(in);
+ Real brightness((this->brightness-0.5)*this->contrast+0.5);
+
+ if(gamma.get_gamma_r()!=1.0)
+ {
+ if(ret.get_r() < 0)
+ {
+ ret.set_r(-gamma.r_F32_to_F32(-ret.get_r()));
+ }else
+ {
+ ret.set_r(gamma.r_F32_to_F32(ret.get_r()));
+ }
+ }
+ if(gamma.get_gamma_g()!=1.0)
+ {
+ if(ret.get_g() < 0)
+ {
+ ret.set_g(-gamma.g_F32_to_F32(-ret.get_g()));
+ }else
+ {
+ ret.set_g(gamma.g_F32_to_F32(ret.get_g()));
+ }
+ }
+ if(gamma.get_gamma_b()!=1.0)
+ {
+ if(ret.get_b() < 0)
+ {
+ ret.set_b(-gamma.b_F32_to_F32(-ret.get_b()));
+ }else
+ {
+ ret.set_b(gamma.b_F32_to_F32(ret.get_b()));
+ }
+ }
+
+ assert(!isnan(ret.get_r()));
+ assert(!isnan(ret.get_g()));
+ assert(!isnan(ret.get_b()));
+
+ if(exposure!=0.0)
+ {
+ const float factor(exp(exposure));
+ ret.set_r(ret.get_r()*factor);
+ ret.set_g(ret.get_g()*factor);
+ ret.set_b(ret.get_b()*factor);
+ }
+
+ // Adjust Contrast
+ if(contrast!=1.0)
+ {
+ ret.set_r(ret.get_r()*contrast);
+ ret.set_g(ret.get_g()*contrast);
+ ret.set_b(ret.get_b()*contrast);
+ }
+
+ if(brightness)
+ {
+ // Adjust R Channel Brightness
+ if(ret.get_r()>-brightness)
+ ret.set_r(ret.get_r()+brightness);
+ else if(ret.get_r()<brightness)
+ ret.set_r(ret.get_r()-brightness);
+ else
+ ret.set_r(0);
+
+ // Adjust G Channel Brightness
+ if(ret.get_g()>-brightness)
+ ret.set_g(ret.get_g()+brightness);
+ else if(ret.get_g()<brightness)
+ ret.set_g(ret.get_g()-brightness);
+ else
+ ret.set_g(0);
+
+ // Adjust B Channel Brightness
+ if(ret.get_b()>-brightness)
+ ret.set_b(ret.get_b()+brightness);
+ else if(ret.get_b()<brightness)
+ ret.set_b(ret.get_b()-brightness);
+ else
+ ret.set_b(0);
+ }
+
+ // Return the color, adjusting the hue if necessary
+ if(!!hue_adjust)
+ return ret.rotate_uv(hue_adjust);
+ else
+ return ret;
+}
+
+bool
+Layer_ColorCorrect::set_param(const String & param, const ValueBase &value)
+{
+ IMPORT(hue_adjust);
+ IMPORT(brightness);
+ IMPORT(contrast);
+ IMPORT(exposure);
+
+ if(param=="gamma" && value.get_type()==ValueBase::TYPE_REAL)
+ {
+ gamma.set_gamma(1.0/value.get(Real()));
+ return true;
+ }
+ return false;
+}
+
+ValueBase
+Layer_ColorCorrect::get_param(const String ¶m)const
+{
+ EXPORT(hue_adjust);
+ EXPORT(brightness);
+ EXPORT(contrast);
+ EXPORT(exposure);
+
+ if(param=="gamma")
+ return 1.0/gamma.get_gamma();
+
+ EXPORT_NAME();
+ EXPORT_VERSION();
+
+ return ValueBase();
+}
+
+Layer::Vocab
+Layer_ColorCorrect::get_param_vocab()const
+{
+ Layer::Vocab ret;
+
+ ret.push_back(ParamDesc("hue_adjust")
+ .set_local_name(_("Hue Adjust"))
+ );
+
+ ret.push_back(ParamDesc("brightness")
+ .set_local_name(_("Brightness"))
+ );
+
+ ret.push_back(ParamDesc("contrast")
+ .set_local_name(_("Contrast"))
+ );
+
+ ret.push_back(ParamDesc("exposure")
+ .set_local_name(_("Exposure Adjust"))
+ );
+
+ ret.push_back(ParamDesc("gamma")
+ .set_local_name(_("Gamma Adjustment"))
+ );
+
+ return ret;
+}
+
+Color
+Layer_ColorCorrect::get_color(Context context, const Point &pos)const
+{
+ return correct_color(context.get_color(pos));
+}
+
+bool
+Layer_ColorCorrect::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
+{
+ SuperCallback supercb(cb,0,9500,10000);
+
+ if(!context.accelerated_render(surface,quality,renddesc,&supercb))
+ return false;
+
+ int x,y;
+
+ Surface::pen pen(surface->begin());
+
+ for(y=0;y<renddesc.get_h();y++,pen.inc_y(),pen.dec_x(x))
+ for(x=0;x<renddesc.get_w();x++,pen.inc_x())
+ pen.put_value(correct_color(pen.get_value()));
+
+ // Mark our progress as finished
+ if(cb && !cb->amount_complete(10000,10000))
+ return false;
+
+ return true;
+}
+
+Rect
+Layer_ColorCorrect::get_full_bounding_rect(Context context)const
+{
+ return context.get_full_bounding_rect();
+}
projects / synfig.git / blobdiff