// 
//---------------------------------------------------------------------------
//
// Copyright(C) 2016 Magnus Norddahl
// All rights reserved.
//
// This program 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 3 of the License, 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program.  If not, see http://www.gnu.org/licenses/
//
//--------------------------------------------------------------------------
//
/*
** gl_postprocess.cpp
** Post processing effects in the render pipeline
**
*/

#include "hw_postprocess_cvars.h"
#include "v_video.h"

//==========================================================================
//
// CVARs
//
//==========================================================================
CVAR(Bool, gl_bloom, false, CVAR_ARCHIVE);
CUSTOM_CVAR(Float, gl_bloom_amount, 1.4f, CVAR_ARCHIVE)
{
	if (self < 0.1f) self = 0.1f;
}

CVAR(Float, gl_exposure_scale, 1.3f, CVAR_ARCHIVE)
CVAR(Float, gl_exposure_min, 0.35f, CVAR_ARCHIVE)
CVAR(Float, gl_exposure_base, 0.35f, CVAR_ARCHIVE)
CVAR(Float, gl_exposure_speed, 0.05f, CVAR_ARCHIVE)

CUSTOM_CVAR(Int, gl_tonemap, 0, CVAR_ARCHIVE)
{
	if (self < 0 || self > 5)
		self = 0;
}

CVAR(Bool, gl_lens, false, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)

CVAR(Float, gl_lens_k, -0.12f, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
CVAR(Float, gl_lens_kcube, 0.1f, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
CVAR(Float, gl_lens_chromatic, 1.12f, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)

CUSTOM_CVAR(Int, gl_fxaa, 0, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
{
	if (self < 0 || self >= IFXAAShader::Count)
	{
		self = 0;
	}
}

CUSTOM_CVAR(Int, gl_ssao, 0, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
{
	if (self < 0 || self > 3)
		self = 0;
}

CUSTOM_CVAR(Int, gl_ssao_portals, 1, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
{
	if (self < 0)
		self = 0;
}

CVAR(Float, gl_ssao_strength, 0.7f, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
CVAR(Int, gl_ssao_debug, 0, 0)
CVAR(Float, gl_ssao_bias, 0.2f, 0)
CVAR(Float, gl_ssao_radius, 80.0f, 0)
CUSTOM_CVAR(Float, gl_ssao_blur, 16.0f, 0)
{
	if (self < 0.1f) self = 0.1f;
}

CUSTOM_CVAR(Float, gl_ssao_exponent, 1.8f, 0)
{
	if (self < 0.1f) self = 0.1f;
}

CUSTOM_CVAR(Float, gl_paltonemap_powtable, 2.0f, CVAR_ARCHIVE | CVAR_NOINITCALL)
{
	screen->UpdatePalette();
}

CUSTOM_CVAR(Bool, gl_paltonemap_reverselookup, true, CVAR_ARCHIVE | CVAR_NOINITCALL)
{
	screen->UpdatePalette();
}

CVAR(Float, gl_menu_blur, -1.0f, CVAR_ARCHIVE)