X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Fsrc%2Fmodules%2Fmod_filter%2Fhalftone3.cpp;fp=synfig-core%2Fsrc%2Fmodules%2Fmod_filter%2Fhalftone3.cpp;h=a2a4283d18669a607939c6f1dffaf05489b6d0e9;hb=a095981e18cc37a8ecc7cd237cc22b9c10329264;hp=0000000000000000000000000000000000000000;hpb=9459638ad6797b8139f1e9f0715c96076dbf0890;p=synfig.git

diff --git a/synfig-core/src/modules/mod_filter/halftone3.cpp b/synfig-core/src/modules/mod_filter/halftone3.cpp
new file mode 100644
index 0000000..a2a4283
--- /dev/null
+++ b/synfig-core/src/modules/mod_filter/halftone3.cpp
@@ -0,0 +1,408 @@
+/* === S Y N F I G ========================================================= */
+/*!	\file halftone3.cpp
+**	\brief Implementation of the "Halftone 3" layer
+**
+**	$Id$
+**
+**	\legal
+**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**	Copyright (c) 2007-2008 Chris Moore
+**
+**	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 "halftone3.h"
+#include "halftone.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
+
+/* === M A C R O S ========================================================= */
+
+using namespace synfig;
+using namespace std;
+using namespace etl;
+
+/* === G L O B A L S ======================================================= */
+
+SYNFIG_LAYER_INIT(Halftone3);
+SYNFIG_LAYER_SET_NAME(Halftone3,"halftone3");
+SYNFIG_LAYER_SET_LOCAL_NAME(Halftone3,N_("Halftone 3"));
+SYNFIG_LAYER_SET_CATEGORY(Halftone3,N_("Filters"));
+SYNFIG_LAYER_SET_VERSION(Halftone3,"0.0");
+SYNFIG_LAYER_SET_CVS_ID(Halftone3,"$Id$");
+
+/* === P R O C E D U R E S ================================================= */
+
+#define HALFSQRT2	(0.7)
+#define SQRT2	(1.414213562f)
+
+/* === M E T H O D S ======================================================= */
+
+Halftone3::Halftone3()
+{
+	size=(synfig::Vector(0.25,0.25));
+	type=TYPE_SYMMETRIC;
+
+	for(int i=0;i<3;i++)
+	{
+		tone[i].size=size;
+		tone[i].type=type;
+		tone[i].origin=(synfig::Point(0,0));
+		tone[i].angle=Angle::deg(30.0)*(float)i;
+	}
+
+	subtractive=true;
+
+	if(subtractive)
+	{
+		color[0]=Color::cyan();
+		color[1]=Color::magenta();
+		color[2]=Color::yellow();
+	}
+	else
+	{
+		color[0]=Color::red();
+		color[1]=Color::green();
+		color[2]=Color::blue();
+	}
+
+	set_blend_method(Color::BLEND_STRAIGHT);
+
+	for(int i=0;i<3;i++)
+		for(int j=0;j<3;j++)
+			inverse_matrix[i][j]=(j==i)?1.0f:0.0f;
+
+	sync();
+}
+
+void
+Halftone3::sync()
+{
+	for(int i=0;i<3;i++)
+	{
+		tone[i].size=size;
+		tone[i].type=type;
+	}
+
+#define matrix inverse_matrix
+	//float matrix[3][3];
+
+	if(subtractive)
+	{
+		for(int i=0;i<3;i++)
+		{
+			matrix[i][0]=1.0f-(color[i].get_r());
+			matrix[i][1]=1.0f-(color[i].get_g());
+			matrix[i][2]=1.0f-(color[i].get_b());
+			float mult=sqrt(matrix[i][0]*matrix[i][0]+matrix[i][1]*matrix[i][1]+matrix[i][2]*matrix[i][2]);
+			if(mult)
+			{
+				matrix[i][0]/=mult;
+				matrix[i][1]/=mult;
+				matrix[i][2]/=mult;
+				matrix[i][0]/=mult;
+				matrix[i][1]/=mult;
+				matrix[i][2]/=mult;
+			}
+		}
+	}
+	else
+	{
+		for(int i=0;i<3;i++)
+		{
+			matrix[i][0]=color[i].get_r();
+			matrix[i][1]=color[i].get_g();
+			matrix[i][2]=color[i].get_b();
+			float mult=sqrt(matrix[i][0]*matrix[i][0]+matrix[i][1]*matrix[i][1]+matrix[i][2]*matrix[i][2]);
+			if(mult)
+			{
+				matrix[i][0]/=mult;
+				matrix[i][1]/=mult;
+				matrix[i][2]/=mult;
+				matrix[i][0]/=mult;
+				matrix[i][1]/=mult;
+				matrix[i][2]/=mult;
+			}
+		}
+	}
+#undef matrix
+
+
+
+#if 0
+	// Insert guass-jordan elimination code here
+	int k=0,i=0,j=0,z_size=3;
+#define A inverse_matrix
+
+	for (k=0;k<z_size;k++)
+  // the pivot element
+    { A[k][k]= -1/A[k][k];
+
+  //the pivot column
+     for (i=0;i<z_size;i++)
+         if (i!=k) A[i][k]*=A[k][k];
+
+ //elements not in a pivot row or column
+     for (i=0;i<z_size;i++)
+        if (i!=k)
+            for (j=0;j<z_size;j++)
+                      if (j!=k)
+                          A[i][j]+=A[i][k]*A[k][j];
+
+ //elements in a pivot row
+    for (i=0;i<z_size;i++)
+       if (i!=k)
+            A[k][i]*=A[k][k];
+   }
+
+ //change sign
+   for (i=0;i<z_size;i++)        /*reverse sign*/
+     for (j=0;j<z_size;j++)
+        A[i][j]=-A[i][j];
+#undef A
+#endif
+}
+
+inline Color
+Halftone3::color_func(const Point &point, float supersample,const Color& in_color)const
+{
+	Color halfcolor;
+
+	float chan[3];
+
+
+	if(subtractive)
+	{
+		chan[0]=inverse_matrix[0][0]*(1.0f-in_color.get_r())+inverse_matrix[0][1]*(1.0f-in_color.get_g())+inverse_matrix[0][2]*(1.0f-in_color.get_b());
+		chan[1]=inverse_matrix[1][0]*(1.0f-in_color.get_r())+inverse_matrix[1][1]*(1.0f-in_color.get_g())+inverse_matrix[1][2]*(1.0f-in_color.get_b());
+		chan[2]=inverse_matrix[2][0]*(1.0f-in_color.get_r())+inverse_matrix[2][1]*(1.0f-in_color.get_g())+inverse_matrix[2][2]*(1.0f-in_color.get_b());
+
+		halfcolor=Color::white();
+		halfcolor-=(~color[0])*tone[0](point,chan[0],supersample);
+		halfcolor-=(~color[1])*tone[1](point,chan[1],supersample);
+		halfcolor-=(~color[2])*tone[2](point,chan[2],supersample);
+
+		halfcolor.set_a(in_color.get_a());
+	}
+	else
+	{
+		chan[0]=inverse_matrix[0][0]*in_color.get_r()+inverse_matrix[0][1]*in_color.get_g()+inverse_matrix[0][2]*in_color.get_b();
+		chan[1]=inverse_matrix[1][0]*in_color.get_r()+inverse_matrix[1][1]*in_color.get_g()+inverse_matrix[1][2]*in_color.get_b();
+		chan[2]=inverse_matrix[2][0]*in_color.get_r()+inverse_matrix[2][1]*in_color.get_g()+inverse_matrix[2][2]*in_color.get_b();
+
+		halfcolor=Color::black();
+		halfcolor+=color[0]*tone[0](point,chan[0],supersample);
+		halfcolor+=color[1]*tone[1](point,chan[1],supersample);
+		halfcolor+=color[2]*tone[2](point,chan[2],supersample);
+
+		halfcolor.set_a(in_color.get_a());
+	}
+
+	return halfcolor;
+}
+
+inline float
+Halftone3::calc_supersample(const synfig::Point &/*x*/, float pw,float /*ph*/)const
+{
+	return abs(pw/(tone[0].size).mag());
+}
+
+synfig::Layer::Handle
+Halftone3::hit_check(synfig::Context /*context*/, const synfig::Point &/*point*/)const
+{
+	return const_cast<Halftone3*>(this);
+}
+
+bool
+Halftone3::set_param(const String & param, const ValueBase &value)
+{
+	IMPORT_PLUS(size, {tone[0].size=size; tone[1].size=size; tone[2].size=size;});
+	IMPORT_PLUS(type, {tone[0].type=type; tone[1].type=type; tone[2].type=type;});
+
+	IMPORT_PLUS(color[0],sync());
+	IMPORT_PLUS(color[1],sync());
+	IMPORT_PLUS(color[2],sync());
+
+	IMPORT_PLUS(subtractive,sync());
+
+	IMPORT(tone[0].angle);
+	IMPORT(tone[0].origin);
+
+	IMPORT(tone[1].angle);
+	IMPORT(tone[1].origin);
+
+	IMPORT(tone[2].angle);
+	IMPORT(tone[2].origin);
+
+	IMPORT_AS(tone[0].origin,"tone[0].offset");
+	IMPORT_AS(tone[1].origin,"tone[1].offset");
+	IMPORT_AS(tone[2].origin,"tone[2].offset");
+
+	return Layer_Composite::set_param(param,value);
+}
+
+ValueBase
+Halftone3::get_param(const String & param)const
+{
+	EXPORT(size);
+	EXPORT(type);
+
+	EXPORT(color[0]);
+	EXPORT(color[1]);
+	EXPORT(color[2]);
+
+	EXPORT(subtractive);
+
+	EXPORT(tone[0].angle);
+	EXPORT(tone[0].origin);
+
+	EXPORT(tone[1].angle);
+	EXPORT(tone[1].origin);
+
+	EXPORT(tone[2].angle);
+	EXPORT(tone[2].origin);
+
+	EXPORT_NAME();
+	EXPORT_VERSION();
+
+	return Layer_Composite::get_param(param);
+}
+
+Layer::Vocab
+Halftone3::get_param_vocab()const
+{
+	Layer::Vocab ret(Layer_Composite::get_param_vocab());
+
+	ret.push_back(ParamDesc("size")
+		.set_local_name(_("Mask Size"))
+	);
+	ret.push_back(ParamDesc("type")
+		.set_local_name(_(" Type"))
+		.set_hint("enum")
+		.add_enum_value(TYPE_SYMMETRIC,"symmetric",_("Symmetric"))
+		.add_enum_value(TYPE_LIGHTONDARK,"lightondark",_("Light On Dark"))
+		//.add_enum_value(TYPE_DARKONLIGHT,"darkonlight",_("Dark on Light"))
+		.add_enum_value(TYPE_DIAMOND,"diamond",_("Diamond"))
+		.add_enum_value(TYPE_STRIPE,"stripe",_("Stripe"))
+	);
+	ret.push_back(ParamDesc("subtractive")
+		.set_local_name(_("Subtractive Flag"))
+	);
+
+	for(int i=0;i<3;i++)
+	{
+		String chan_name(strprintf("Chan%d",i));
+
+		ret.push_back(ParamDesc(strprintf("color[%d]",i))
+			.set_local_name(chan_name+_(" Color"))
+		);
+
+		ret.push_back(ParamDesc(strprintf("tone[%d].origin",i))
+			.set_local_name(chan_name+_(" Mask Origin"))
+			.set_is_distance()
+		);
+		ret.push_back(ParamDesc(strprintf("tone[%d].angle",i))
+			.set_local_name(chan_name+_(" Mask Angle"))
+			.set_origin(strprintf("tone[%d].origin",i))
+		);
+	}
+
+	return ret;
+}
+
+Color
+Halftone3::get_color(Context context, const Point &point)const
+{
+	const Color undercolor(context.get_color(point));
+	const Color color(color_func(point,0,undercolor));
+
+	if(get_amount()==1.0 && get_blend_method()==Color::BLEND_STRAIGHT)
+		return color;
+	else
+		return Color::blend(color,undercolor,get_amount(),get_blend_method());
+}
+
+bool
+Halftone3::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;
+	if(get_amount()==0)
+		return true;
+
+	const Real pw(renddesc.get_pw()),ph(renddesc.get_ph());
+	const Point tl(renddesc.get_tl());
+	const int w(surface->get_w());
+	const int h(surface->get_h());
+	const float supersample_size(abs(pw/(tone[0].size).mag()));
+
+	Surface::pen pen(surface->begin());
+	Point pos;
+	int x,y;
+
+	if(is_solid_color())
+	{
+		for(y=0,pos[1]=tl[1];y<h;y++,pen.inc_y(),pen.dec_x(x),pos[1]+=ph)
+			for(x=0,pos[0]=tl[0];x<w;x++,pen.inc_x(),pos[0]+=pw)
+				pen.put_value(
+					color_func(
+						pos,
+						supersample_size,
+						pen.get_value()
+					)
+				);
+	}
+	else
+	{
+		for(y=0,pos[1]=tl[1];y<h;y++,pen.inc_y(),pen.dec_x(x),pos[1]+=ph)
+			for(x=0,pos[0]=tl[0];x<w;x++,pen.inc_x(),pos[0]+=pw)
+				pen.put_value(
+					Color::blend(
+				 		color_func(
+							pos,
+							supersample_size,
+							pen.get_value()
+						),
+						pen.get_value(),
+						get_amount(),
+						get_blend_method()
+					)
+				);
+	}
+
+	// Mark our progress as finished
+	if(cb && !cb->amount_complete(10000,10000))
+		return false;
+
+	return true;
+}