/*
 *	Copyright (C) 2011-2013 Gregory hainaut
 *	Copyright (C) 2007-2009 Gabest
 *
 *  This file was generated by glsl2h.pl script
 *
 *  This Program 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, or (at your option)
 *  any later version.
 *
 *  This Program 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.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with GNU Make; see the file COPYING.  If not, write to
 *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA USA.
 *  http://www.gnu.org/copyleft/gpl.html
 *
 */

#pragma once

#include "stdafx.h"

static const char* shadeboost_glsl =
	"//#version 420 // Keep it for editor detection\n"
	"\n"
	"/*\n"
	"** Contrast, saturation, brightness\n"
	"** Code of this function is from TGM's shader pack\n"
	"** http://irrlicht.sourceforge.net/phpBB2/viewtopic.php?t=21057\n"
	"*/\n"
	"\n"
	"struct vertex_basic\n"
	"{\n"
	"    vec4 p;\n"
	"    vec2 t;\n"
	"};\n"
	"\n"
	"#ifdef FRAGMENT_SHADER\n"
	"\n"
	"#if __VERSION__ > 140 && !(defined(NO_STRUCT))\n"
	"layout(location = 0) in vertex_basic PSin;\n"
	"#define PSin_p (PSin.p)\n"
	"#define PSin_t (PSin.t)\n"
	"#else\n"
	"layout(location = 0) in vec4 p;\n"
	"layout(location = 1) in vec2 t;\n"
	"#define PSin_p p\n"
	"#define PSin_t t\n"
	"#endif\n"
	"\n"
	"layout(location = 0) out vec4 SV_Target0;\n"
	"\n"
	"#ifdef DISABLE_GL42\n"
	"layout(std140) uniform cb12\n"
	"#else\n"
	"layout(std140, binding = 12) uniform cb12\n"
	"#endif\n"
	"{\n"
	"    vec4 BGColor;\n"
	"};\n"
	"\n"
	"#ifdef DISABLE_GL42\n"
	"uniform sampler2D TextureSampler;\n"
	"#else\n"
	"layout(binding = 0) uniform sampler2D TextureSampler;\n"
	"#endif\n"
	"\n"
	"// For all settings: 1.0 = 100\% 0.5=50\% 1.5 = 150\% \n"
	"vec4 ContrastSaturationBrightness(vec4 color)\n"
	"{\n"
	"	const float sat = SB_SATURATION / 50.0;\n"
	"	const float brt = SB_BRIGHTNESS / 50.0;\n"
	"	const float con = SB_CONTRAST / 50.0;\n"
	"	\n"
	"	// Increase or decrease theese values to adjust r, g and b color channels seperately\n"
	"	const float AvgLumR = 0.5;\n"
	"	const float AvgLumG = 0.5;\n"
	"	const float AvgLumB = 0.5;\n"
	"	\n"
	"	const vec3 LumCoeff = vec3(0.2125, 0.7154, 0.0721);\n"
	"	\n"
	"	vec3 AvgLumin = vec3(AvgLumR, AvgLumG, AvgLumB);\n"
	"	vec3 brtColor = color.rgb * brt;\n"
	"    float dot_intensity = dot(brtColor, LumCoeff);\n"
	"	vec3 intensity = vec3(dot_intensity, dot_intensity, dot_intensity);\n"
	"	vec3 satColor = mix(intensity, brtColor, sat);\n"
	"	vec3 conColor = mix(AvgLumin, satColor, con);\n"
	"\n"
	"	color.rgb = conColor;	\n"
	"	return color;\n"
	"}\n"
	"\n"
	"\n"
	"void ps_main()\n"
	"{\n"
	"    vec4 c = texture(TextureSampler, PSin_t);\n"
	"	SV_Target0 = ContrastSaturationBrightness(c);\n"
	"}\n"
	"\n"
	"\n"
	"#endif\n"
	;