X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Fsrc%2Fmodules%2Fmod_filter%2Fcolorcorrect.cpp;fp=synfig-core%2Fsrc%2Fmodules%2Fmod_filter%2Fcolorcorrect.cpp;h=3a0468e253bc9fe607233b605221b2877763b16a;hb=a095981e18cc37a8ecc7cd237cc22b9c10329264;hp=0000000000000000000000000000000000000000;hpb=9459638ad6797b8139f1e9f0715c96076dbf0890;p=synfig.git

diff --git a/synfig-core/src/modules/mod_filter/colorcorrect.cpp b/synfig-core/src/modules/mod_filter/colorcorrect.cpp
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+++ b/synfig-core/src/modules/mod_filter/colorcorrect.cpp
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+/* === 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 &param)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();
+}